WO2014036909A1

WO2014036909A1 - Method, apparatus and system for transferring harq ack and csi

Info

Publication number: WO2014036909A1
Application number: PCT/CN2013/082593
Authority: WO
Inventors: 林志嵘; 夏树强; 梁春丽; 任璐
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-09-10
Filing date: 2013-08-29
Publication date: 2014-03-13
Also published as: CN103684705A

Abstract

A method, apparatus and system for transferring HARQ ACK and CSI are disclosed, which reserves at least two available resources of PUCCH format 3 for UE, one of which used for transferring HARQ ACK in normal situation, while the other used for transferring CSI in normal situation, and instructs UE to choose one of the above mentioned resources to transfer HARQ ACK and CSI simultaneously. The technology for transferring HARQ ACK and CSI in the present invention is able to instruct UE to choose the appropriate resource of PUCCH format 3 to transfer HARQ ACK and CSI simultaneously, to reduce system interference, and to decrease the energy loss of UE.

Description

Method, device and system for transmitting HARQ response information and CSI

The present invention relates to the field of communications, and in particular, to a method, device and system for transmitting hybrid automatic repeat request (HARQ) response information and channel state information (CSI). Background technique

In the 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) system, including Frequency Division Duplex (FDD) mode and Time Division Duplex (Time Division Duplex) , TDD ) mode frame structure. In the FDD mode frame structure, a 10 msec (ms) radio frame consists of twenty slots of length 0.5 ms and numbers 0-19, and slots 2i and 2i+1 form a length of 1 ms. Subframe i (where 0 < i < 9 ). In the frame structure of the TDD mode, a 10 ms radio frame is composed of two half frames of 5 ms length, and one subframe includes five subframes of one leg length, and subframe i is defined as two subframes. A combination of time slots 2i and 2i+1 that is 0.5 ms long (where 0 < i < 9). In the above two frame structures, when the standard Cyclic Prefix (Normal CP) is used, one slot contains 7 symbols, and when the extended cyclic prefix (Extended Cyclic Prefix, Extended CP) is used, one slot includes 6 symbols.

In the LTE system, uplink power control (uplink power control) is used to control the transmit power of the uplink physical channel to compensate for channel path loss and shadow fading, and to suppress inter-cell interference. The uplink physical channel for performing power control includes a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a measurement reference signal. Sounding Reference Signal (SRS).

The PUCCH is used to transmit uplink control information (UCI), and the UCI includes a Scheduling Request (SR), a Physical Downlink Shared Channel (PDSCH), a HARQ-ACK/NACK, and a User Equipment (UE). Feedback of the downstream CSI. The CSI includes three forms: a Channel Quality Indication (CQI), a Precoding Matrix Indicator (PMI), and a Rank Indication (RI).

The advanced LTE (LTE-Advanced, LTE-A) system is the next-generation evolution system of the LTE system. In order to support larger system bandwidth and to be backward compatible with existing LTE standards, carrier aggregation technology has been introduced. Each aggregated carrier is called a component carrier (CO), which is also called a cell. Multiple component carriers can be continuous or non-contiguous; they can be located in the same band (operating band). Can be located in different frequency bands.

To transmit HARQ-ACK/NACK in the carrier aggregation scenario, a new PUCCH format, called the third PUCCH format (PUCCH format 3), is introduced in the LTE-A system. According to the prior art, based on the FDD system, the HARQ-ACK/NACK to be transmitted is at most 10 bits; based on the TDD system, the HARQ-ACK/NACK to be transmitted is at most 90 bits. When the transmitted response information is greater than 20 bits, the HARQ-ACK/NACK corresponding to the PDSCH of the two codeword streams is spatially bound (Spatial Bundling), that is, the corresponding HARQ-ACK/NACK is logically operated. When transmitting in PUCCH format 3, when the number of transmitted bits is less than or equal to 11 bits, the encoding method of Reed-Muller is adopted; when the number of transmitted bits is greater than 11 bits, Shuangred is used. - The encoding of the Dual RM code. Moreover, the HARQ-ACK/NACK to be transmitted is divided into two parts, and respectively coded and transmitted by using RM.

The LTE-A system specifies that when the UE needs to transmit HARQ-ACK/NACK and periodic CSI in the same subframe, if the UE needs to transmit the HARQ-ACK/NACK, it only corresponds to the primary serving cell. HARQ-ACK/NACK, the UE transmits HARQ-ACK/NACK and periodic CSI using PUCCH format 2/2b; otherwise, the UE will cancel the periodic CSI and only transmit HARQ-ACK/NACK. The LTE-A system uses the above method mainly to ensure downlink throughput performance. The LTE-A system further provides that when the periodic CSIs of multiple serving cells need to be transmitted in the same subframe, the periodic CSI transmission of one serving cell is selected according to a predefined priority, and the periodic CSI of other cells is cancelled. In the typical application scenario of LTE-A (Rd-10 phase), the number of serving cells participating in carrier aggregation is generally two. Therefore, as long as the periodic CSI of the serving cell is properly configured, combined with certain scheduling restrictions, periodic CSI and HARQ-ACK. The probability that the /NACK is transmitted on the same subframe can be controlled in a relatively low range. Similarly, the probability of simultaneous CSI transmission of multiple serving cells can also be controlled. Therefore, the impact of the periodic CSI on system performance can be Accepted.

However, in subsequent versions of Rel-10, the typical application scenario of carrier aggregation is no longer limited to two serving cells. As the number of serving cells increases, the probability of collisions between periodic CSI and HARQ-ACK/NACK on the same subframe increases. If the method of Rd-10 is still used, as long as the HARQ-ACK/NACK response message includes the secondary serving cell, the periodic CSI is cancelled, and the accuracy of the channel state information obtained by the base station side is degraded, thereby affecting the performance of the downlink throughput.

In general, the base station (eNB) reserves a PUCCH format 3 resource in order to enable the UE to transmit HARQ-ACK/NACK, and reserves another PUCCH format 3 resource in order to enable the UE to transmit periodic CSI. When the UE needs to transmit HARQ-ACK/NACK and periodic CSI at the same time, it necessarily involves a problem of how to transmit HARQ-ACK/NACK and periodic CSI by using the above two resources, but no specific technical support has yet appeared to solve the problem. Summary of the invention

In view of this, the main objective of the embodiments of the present invention is to provide a method, an apparatus, and a system for transmitting HARQ response information and CSI.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

A method for transmitting HARQ response information and CSI includes: Retaining at least two available PUCCH format 3 resources for the UE, where one resource is used to transmit HARQ response information in a normal state, and the other resource is used to transmit CSI in a normal state;

The UE is instructed to select one of the above resources to perform simultaneous transmission of HARQ response information and CSI.

The HARQ response information includes HARQ-ACK/NACK; the CSI is a periodic CSI or an aperiodic CSI;

The indication operation is performed when the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in the current subframe.

The manner of the indication includes:

Predefined indication mode: the UE simultaneously transmits HARQ-ACK/NACK and periodic CSI by using one of the resources in a predefined order; or

Signaling indication manner: indicating, by signaling, that the UE simultaneously transmits HARQ-ACK/NACK and periodic CSI by using one of the resources; or

Pre-defined and signaling combined indication manner: By combining the pre-defined and signaling, the UE is instructed to simultaneously transmit HARQ-ACK/NACK and periodic CSI using one of the resources.

The pre-defined indication includes: a pre-defined UE selects a PUCCH format 3 resource selection mode and agrees with the UE, and the UE directly selects a PUCCH format 3 resource according to a predefined resource selection manner to perform HARQ-ACK/NACK and periodic CSI. send.

The method for the UE to select the PUCCH format 3 resource for the predefined indication manner includes:

Select the PUCCH format 3 resource to be used according to the transmission slot; or,

Selecting a PUCCH format 3 resource to be used according to the received DCI format; or selecting a PUCCH format 3 resource to be used according to the received DCI format content; or selecting a used PUCCH format 3 resource according to the number of HARQ-ACK bits to be fed back; or, Select the PUCCH format 3 resource to be used according to the number of periodic CSI bits that need to be fed back; or,

The PUCCH format 3 resource selected according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits; or

The resources to be used are determined according to the HARQ-ACK/NACK and periodic CSI simultaneous transmission index.

The UE selects a corresponding relationship between the subframe index when the UE sends the PUCCH format 3 and the PUCCH format 3 resource selected by the UE, and selects the corresponding PUCCH format 3 resource according to the subframe index, when the PUCCH format 3 resource is selected according to the transmission slot. ;

The UE selects the corresponding PUCCH format 3 resource according to the received DCI format, and selects the corresponding PUCCH format 3 resource according to the received DCI format.

The UE selects the corresponding PUCCH format 3 resource according to the received DCI format content, and defines the corresponding relationship between the received DCI format content and the UE selected PUCCH format 3 resource, and the UE selects the corresponding PUCCH format 3 according to the received DCI format content. Resource; according to the number of HARQ-ACK bits that need to be fed back, when the PUCCH format 3 resource is selected, the correspondence between the number of HARQ-ACK bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE is defined, and the UE feeds back the HARQ-ACK according to the need. Select the corresponding PUCCH format 3 resource for the number of bits;

When the PUCCH format 3 resource to be used is selected according to the number of periodic CSI bits to be fed back, the corresponding relationship between the number of periodic CSI bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE is defined, and the UE selects the corresponding number of periodic CSI bits that need to be fed back. PUCCH format 3 resources;

Define the number and period of HARQ-ACK bits that the UE needs to feed back according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits to select the PUCCH format 3 resource to be used. Correspondence between the number of CSI bits and the PUCCH format 3 resources selected by the UE, or the relationship between the number of HARQ-ACK bits that the UE needs to feed back and the number of periodic CSI bits, and the correspondence between the PUCCH format 3 resources selected by the UE; Selecting a corresponding PUCCH format 3 resource by the relationship between the number of HARQ-ACK bits and the number of periodic CSI bits or the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits;

Determining the correspondence between the number of transmission times of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission and the PUCCH format 3 resource selected by the UE, according to the HARQ-ACK/NACK and the periodic CSI simultaneous transmission index, the UE needs the UE as needed The feedback HARQ-ACK/NACK and the periodic CSI simultaneous transmission number index select the corresponding PUCCH format 3 resource.

The signaling indication includes: the UE is instructed to select a PUCCH format 3 resource by using a signaling, and the UE selects a PUCCH format 3 resource to perform HARQ-ACK/NACK and periodic CSI transmission according to the content indicated by the signaling.

The type of the signaling is physical layer signaling or high layer signaling.

When the type of the signaling is the physical layer signaling, the PUCCH format 3 resource selection domain is added to the DCI information, and the UE selects the PUCCH format 3 resource by using the signaling content in the domain;

When the type of the signaling is high-level signaling, a PUCCH format 3 resource selection field is added to the radio resource control RRC information, and the UE selects a PUCCH format 3 resource by using the signaling content in the domain.

The indication that the predefined and signaling are combined includes:

Pre-defining a plurality of UEs to select a PUCCH format 3 resource selection manner and notifying the UE, the UE is configured to select a predefined PUCCH format 3 resource mode by using a predefined indication field in the signaling, and the UE selects the PUCCH according to the selected predefined resource selection manner. The format 3 resource performs HARQ-ACK/NACK and periodic CSI transmission.

A device for transmitting HARQ response information and CSI, configured as: Retaining at least two available PUCCH format 3 resources for the UE, where one resource is used to transmit HARQ response information in a normal state, and another resource is used to transmit CSI in a normal state; and, instructing the UE to select one of the foregoing resources for HARQ Simultaneous transmission of response information and CSI.

The HARQ response information includes HARQ-ACK/NACK; the CSI is a periodic CSI;

The apparatus is configured to perform the indication operation when the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in a current subframe.

The indication manner includes: a predefined indication manner, a signaling indication manner, or an indication manner that is combined with a predetermined signaling;

When the pre-defined indication is performed, the apparatus is configured to: instruct the UE to simultaneously transmit HARQ-ACK/NACK and periodic CSI by using one of the resources in a predefined order;

When the signaling indication is performed, the apparatus is configured to: indicate, by signaling, that the UE simultaneously transmits HARQ-ACK/NACK and periodic CSI by using one of the resources;

And performing, by the combination of the predefined and the signaling, the UE is configured to simultaneously transmit the HARQ-ACK/NACK and the periodic CSL by using one of the resources.

The device is configured to: pre-define a UE to select a PUCCH format 3 resource selection mode and make an agreement with the UE, and instruct the UE to directly select a PUCCH format 3 resource according to a predefined resource selection manner to perform HARQ. - ACK/NACK and periodic CSI transmission.

Wherein, when the predefined indication manner is applied, the device is configured to:

Instructing the UE to select a PUCCH format 3 resource to be used according to the transmission time slot; or, instructing the UE to select a PUCCH format 3 resource to be used according to the received DCI format; or

Instructing the UE to select the PUCCH format 3 used according to the received DCI format content. Source; or,

Instructing the UE to select a PUCCH format 3 resource to be used according to the number of HARQ-ACK bits that need to be fed back; or

Instructing the UE to select a PUCCH format 3 resource to use according to the number of periodic CSI bits that need to be fed back; or,

Instructing the UE to select a PUCCH format 3 resource to be used according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits; or

The UE is instructed to determine the resources to be used according to the HARQ-ACK/NACK and the periodic CSI simultaneous index.

The device is configured to: when the UE is selected to use the PUCCH format 3 resource according to the sending time slot, the device is configured to: define a correspondence between the subframe index when the UE sends the PUCCH format 3 and the PUCCH format 3 resource selected by the UE, and indicate that the UE follows the sub The frame index selects a corresponding PUCCH format 3 resource;

When the UE is instructed to select the used PUCCH format 3 resource according to the received DCI format, the device is configured to: define a correspondence between the DCI format received by the UE and the PUCCH format 3 resource selected by the UE, and instruct the UE to follow the received DCI format. Select the corresponding PUCCH format 3 resource;

When the UE is instructed to select the used PUCCH format 3 resource according to the received DCI format content, the device is configured to: define a correspondence between the DCI format content received by the UE and the PUCCH format 3 resource selected by the UE, and instruct the UE to follow the received The DCI format content selects a corresponding PUCCH format 3 resource;

When the UE is instructed to select the used PUCCH format 3 resource according to the number of HARQ-ACK bits to be fed back, the device is configured to: define a correspondence between the number of HARQ-ACK bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, and indicate the UE. Selecting a corresponding PUCCH format 3 resource according to the number of HARQ-ACK bits that need to be fed back; When the UE is instructed to select the used PUCCH format 3 resource according to the number of periodic CSI bits to be fed back, the device is configured to: define a correspondence between the number of periodic CSI bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, and indicate that the UE needs the UE as needed. Selecting a corresponding PUCCH format 3 resource by the number of periodic CSI bits of the feedback;

When the UE is instructed to select the used PUCCH format 3 resource according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits, the apparatus is configured to: define the number of HARQ-ACK bits that the UE needs to feed back, the number of periodic CSI bits, and the UE selected The correspondence between the PUCCH format 3 resources, or the relationship between the number of HARQ-ACK bits that the UE needs to feed back and the number of periodic CSI bits, and the correspondence between the PUCCH format 3 resources selected by the UE; and the HARQ-ACK bits indicating that the UE feeds back according to needs. Selecting a corresponding PUCCH format 3 resource according to the number of periodic CSI bits or the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits;

When the UE is instructed to determine the resources to be used according to the index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission, the apparatus is configured to: define an index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission and the PUCCH format 3 resource selected by the UE. Corresponding relationship, the UE is instructed to select a corresponding PUCCH format 3 resource according to the index of the HARQ-ACK/NACK and the periodic CSI that are required to be fed back.

When the signaling indication is performed, the device is configured to: indicate, by using signaling, that the UE selects a PUCCH format 3 resource, and instruct the UE to select a PUCCH format 3 resource to perform HARQ-ACK/NACK and periodic CSI according to the content indicated by the signaling. Send.

The type of the signaling is physical layer signaling or high layer signaling.

The device is configured to: add a PUCCH format 3 resource selection field to the DCI information, and indicate, by using the signaling content in the domain, the UE to select a PUCCH format 3 resource;

When the type of the signaling is high layer signaling, the device is configured to: add in the RRC information. The PUCCH format 3 resource selection field indicates that the UE selects the PUCCH format 3 resource by using the signaling content in the domain.

The apparatus is configured to: pre-define a selection manner of selecting, by a plurality of UEs, a PUCCH format 3 resource, and notify the UE to indicate the UE selection by using a predefined indication field in the signaling. The predefined PUCCH format 3 resource indicates that the UE selects a PUCCH format 3 resource according to a predefined resource selection manner to perform HARQ-ACK/NACK and periodic CSI transmission.

The device is a base station.

A device for transmitting HARQ response information and CSI, configured as:

Receiving an indication, selecting one of the reserved at least two available PUCCH format 3 resources according to the received indication to perform simultaneous transmission of the HARQ response information and the CSI;

Among the reserved PUCCH format 3 resources, one resource is used to transmit HARQ response information in a normal state, and the other resource is used to transmit CSI in a normal state.

The apparatus is configured to perform the selecting operation when the current subframe needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI.

After receiving the predefined indication, the apparatus is configured to: simultaneously transmit HARQ-ACK/NACK and periodic CSI by using one of the resources according to a predefined order;

After receiving the signaling indication, the device is configured to: simultaneously transmit HARQ-ACK/NACK and periodic CSI by using one of the resources according to the received signaling indication;

After receiving the pre-defined and signaling combined indication, the apparatus is configured to: simultaneously transmit a HARQ-ACK/NACK by using one of the resources by using a combination of predefined and signaling. And periodic CSI.

After the device receives the predefined indication, the device is configured to: directly follow the predefined

PUCCH format 3 Resource selection mode selection The PUCCH format 3 resource performs HARQ-ACK/NACK and periodic CSI transmission.

After receiving the predefined indication, the device is configured to:

Selecting a PUCCH format 3 resource to be used according to the received DCI format; or selecting a PUCCH format 3 resource to be used according to the received DCI format content; or selecting a used PUCCH format 3 resource according to the number of HARQ-ACK bits to be fed back; Or,

Select the PUCCH format 3 resource to use according to the number of CSI bits required for feedback; or,

The resources to be used are determined according to the index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission. When the PUCCH format 3 resource is selected according to the transmission time slot, the device is configured to: according to the corresponding correspondence between the subframe index and the selected PUCCH format 3 resource when the PUCCH format 3 is transmitted, select the corresponding according to the subframe index. The PUCCH format 3 resource is selected according to the received DCI format, and the device is configured to: according to the received DCI format and the selected PUCCH format 3 resource, according to the received DCI format Select the corresponding PUCCH format 3 resource;

When the PUCCH format 3 resource is selected and used according to the received DCI format content, the device is configured to: according to the received DCI format content and the selected PUCCH format 3 resource, according to the received DCI format content, select corresponding PUCCH format 3 resource; When the PUCCH format 3 resource is selected according to the number of HARQ-ACK bits to be fed back, the device is configured to: according to the correspondence between the number of HARQ-ACK bits that need to be fed back and the selected PUCCH format 3 resource, according to the HARQ-required feedback. Select the corresponding PUCCH format 3 resource by the number of ACK bits;

When the PUCCH format 3 resource is selected according to the number of periodic CSI bits to be fed back, the device is configured to: according to the corresponding relationship between the number of periodic CSI bits that need to be fed back and the selected PUCCH format 3 resource, according to the periodic CSI bit fed back as needed Select the corresponding PUCCH format 3 resource for the quantity;

When the PUCCH format 3 resource is selected according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits, the device is configured to: according to the number of HARQ-ACK bits to be fed back, the number of periodic CSI bits, and the selected PUCCH format 3 resource. Correspondence relationship, or the relationship between the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits, and the corresponding relationship between the selected PUCCH format 3 resources; the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits or the need The relationship between the number of HARQ-ACK bits and the number of periodic CSI bits is selected, and the corresponding PUCCH format 3 resource is selected. When the resources to be used are determined according to the index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission, the device is configured to: According to the correspondence between the index of the HARQ-ACK/NACK and the periodic CSI and the selected PUCCH format 3 resource, the corresponding PUCCH format 3 resource is selected according to the index of the HARQ-ACK/NACK and the periodic CSI that are required to be fed back.

After receiving the signaling indication, the apparatus is configured to: select a PUCCH format 3 resource to perform HARQ-ACK/NACK and periodic CSI transmission according to the content indicated by the signaling.

The type of the signaling is physical layer signaling or high layer signaling.

When the type of the signaling is physical layer signaling, the device is configured to: select a PUCCH according to the signaling content in the PUCCH format 3 resource selection domain added in the DCI information. Format 3 resource;

When the type of the signaling is high-level signaling, the device is configured to: select a PUCCH format 3 resource according to the signaling content in the PUCCH format 3 resource selection domain added in the RRC information.

After receiving the indication of the combination of the predefined and the signaling, the apparatus is configured to: select a predefined PUCCH format 3 resource according to a predefined indication field in the received signaling, and select a PUCCH according to a predefined resource selection manner. Format 3 resource

HARQ-ACK/NACK and periodic CSI transmission.

The device is a UE.

A system for transmitting HARQ response information and CSI includes a base station and a UE. The base station is configured to: reserve at least two available PUCCH format 3 resources for the UE, where one resource is used to transmit HARQ response information in a normal state. And another resource is used to transmit CSI in a normal state; and, instructing the UE to select one of the foregoing resources to perform simultaneous transmission of HARQ response information and CSI;

The UE is configured to: receive an indication of the base station, and select one of the reserved at least two available PUCCH format 3 resources according to the received indication to perform simultaneous transmission of the HARQ response information and the CSI.

The base station is configured to perform the indication operation when the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in the current subframe.

When performing the predefined indication, the base station is configured to: instruct the UE to simultaneously transmit HARQ-ACK/NACK and periodic CSI by using one of the resources in a predefined order; When performing the signaling indication, the base station is configured to: indicate, by signaling, that the UE simultaneously transmits HARQ-ACK/NACK and periodic CSI by using one of the resources;

When performing the indication of combining the pre-defined with the signaling, the base station is configured to: instruct the UE to simultaneously transmit the HARQ-ACK/NACK and the periodic CSL by using one of the resources by combining the predefined and the signaling.

The technology for transmitting HARQ response information and CSI in the embodiment of the present invention can instruct the UE to select an appropriate PUCCH format 3 resource for HARQ response information and simultaneous transmission of CSI, thereby reducing system interference and reducing energy loss of the UE. DRAWINGS

1 is a schematic diagram of time-frequency positions of two PUCCH format 3 resources reserved by an eNB for a UE; FIG. 2 is a flowchart of implementing PUCCH format 3 resource indication according to an embodiment of the present invention; FIG. 3 is a schematic diagram of implementing PUCCH according to another embodiment of the present invention. FIG. 4 is a flowchart of implementing PUCCH format 3 resource indication according to still another embodiment of the present invention; FIG. 5 is a schematic flowchart of transmitting HARQ response information and CSI according to an embodiment of the present invention. detailed description

In practical applications, the UE needs to be instructed to select an appropriate PUCCH format 3 resource for HARQ response information and CSI transmission to reduce system interference and reduce UE energy loss.

It should be noted that the HARQ response information includes at least one of HARQ-positive acknowledgement ( HARQ-ACK) and HARQ-negative acknowledgement ( HARQ-NACK), that is, The HARQ response information may include HARQ-positive acknowledgement I negative acknowledgement ( HARQ-ACK/NACK). The CSI may be a periodic CSI or an aperiodic CSL. The following describes HARQ-ACK/NACK and periodic CSI as an example. Specifically, the eNB may reserve at least two (eg, two) available PUCCH format 3 resources for the UE, where one resource is used to transmit HARQ-ACK/NACK, and the other resource is used to transmit resources used in periodic CSI. When the UE needs to transmit the HARQ-ACK/NACK and the periodic CSI in the current subframe, the eNB may instruct the UE to select one of the resources to perform the simultaneous transmission of the HARQ-ACK/NACK and the periodic CSI in a certain indication manner.

It should be noted that the resource used for transmitting HARQ-ACK/NACK is normally used to transmit HARQ-ACK/NACK under normal conditions, which does not mean that resources for transmitting HARQ-ACK/NACK cannot transmit other resources; Resources for transmitting HARQ-ACK/NACK may also transmit other resources including periodic CSI. Similarly, the resource used to transmit the periodic CSI is usually used to transmit the periodic CSI in the normal state. This does not mean that the resource used for the transmission period CSI cannot transmit other resources; in fact, the resource used for the transmission period CSI can also be transmitted. Other resources including HARQ-ACK/NACK.

The indication manner may include:

Predefined indication mode: The UE simultaneously transmits HARQ-ACK/NACK and periodic CSI by using one of the above resources in a predefined order. Or,

Signaling indication mode, indicating, by signaling, that the _UE uses one of the foregoing resources to simultaneously transmit

HARQ-ACK/NACK and periodic CSI. Or,

The indication manner combined with the signaling, by combining the predefined and the signaling, instructs the UE to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI by using one of the foregoing resources.

The foregoing predefined indication manner is: the eNB pre-defines the selection mode of the UE to select the PUCCH format 3 resource and makes an agreement with the UE. When the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI, the eNB does not need the eNB signaling indication, but directly The predefined resource selection mode selects a PUCCH format 3 resource for transmission of HARQ-ACK/NACK and periodic CSI.

For a predefined indication manner, the manner in which the UE selects a PUCCH format 3 resource includes, but is not limited to, the following: The PUCCH format 3 resource is selected according to the transmission slot, that is, the correspondence between the subframe index when the UE sends the PUCCH format 3 and the PUCCH format 3 resource selected by the UE is defined, and the UE selects the corresponding PUCCH format 3 resource according to the subframe index; or ,

The PUCCH format 3 resource is selected according to the received Downlink Control Information (DCI) format, that is, the correspondence between the DCI format received by the UE and the PUCCH format 3 resource selected by the UE is defined, and the UE follows the received DCI format. Select the corresponding PUCCH format 3 resource; or,

The PUCCH format 3 resource is selected according to the received DCI format content, that is, the correspondence between the DCI format content received by the UE and the PUCCH format 3 resource selected by the UE is defined, and the UE selects the corresponding PUCCH format 3 according to the received DCI format content. Resources; or,

Selecting the PUCCH format 3 resource to be used according to the number of HARQ-ACK bits to be fed back, that is, defining the correspondence between the number of HARQ-ACK bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, and the number of HARQ-ACK bits that the UE needs to feed back according to the need. Select the corresponding PUCCH format 3 resource; or,

The PUCCH format 3 resource is selected according to the number of periodic CSI bits to be fed back, that is, the correspondence between the number of periodic CSI bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE is defined, and the UE selects the corresponding number of periodic CSI bits that need to be fed back. PUCCH format 3 resources; or,

The PUCCH format 3 resource is selected according to the number of HARQ-ACK bits to be fed back and the number of periodic CSI bits, that is, the correspondence between the number of HARQ-ACK bits that the UE needs to feed back, the number of periodic CSI bits, and the PUCCH format 3 resource selected by the UE. Or, the relationship between the number of HARQ-ACK bits that the UE needs to feed back and the number of periodic CSI bits, and the correspondence between the number of HARQ-ACK bits that need to be fed back by the UE and the number of periodic CSI bits or feedback are required. Number and period of HARQ-ACK bits The correlation between the number of CSI bits, the corresponding PUCCH format 3 resource is selected; or, the resource to be used is determined according to the index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission, that is, the index defining the HARQ-ACK/NACK and the periodic CSI simultaneous transmission Corresponding to the PUCCH format 3 resource selected by the UE, the UE selects the corresponding PUCCH format 3 resource according to the index of the HARQ-ACK/NACK and the periodic CSI that are required to be fed back.

The signaling indication manner is: when the UE needs to transmit the HARQ-ACK/NACK and the periodic CSI at the same time, the eNB instructs the UE to select one PUCCH format 3 resource of the reserved PUCCH format 3 resource to perform HARQ-ACK/NACK by signaling. And sending the periodic CSI, the UE selects one of the reserved PUCCH format 3 resources to perform HARQ-ACK/NACK and periodic CSI transmission according to the content indicated by the signaling of the eNB.

The type of the signaling is:

Physical layer signaling, that is, adding a PUCCH format 3 resource selection field to the DCI information, and instructing the UE to select a PUCCH format 3 resource by using the signaling content in the domain; or

The high-level signaling, that is, the PUCCH format 3 resource selection field is added to the Radio Resource Control (RRC) information, and the UE selects the PUCCH format 3 resource by using the signaling content in the domain.

The indication manner of the combination of the predefined and the signaling is: The eNB pre-defines a selection manner of multiple UEs to select a PUCCH format 3 resource and notifies the UE. When the UE needs to transmit the HARQ-ACK/NACK and the periodic CSI at the same time, the eNB instructs the UE to select the predefined PUCCH format 3 resource through the physical layer signaling or the predefined indication field in the RRC signaling, and the UE follows the predefined resource selection manner. Select the PUCCH format 3 resource to send.

The above signaling indication manner can reduce the power consumption of the UE and improve the battery life of the UE. It also reduces interference within the system and improves the overall performance of the system.

The above predefined indication manner can effectively reduce the downlink system overhead.

The above-mentioned indication manner combining pre-defined and signaling has more obvious than the predefined indication manner. The effect is lower than the downlink system overhead of the signaling indication mode.

In the Rel-11 version of the LTE standard, when a UE needs to transmit HARQ-ACK/NACK and periodic CSI using PUCCH format 3, the eNB needs to reserve resources required for transmitting HARQ-ACK/NACK and periodic CSI for the UE, respectively. When the UE simultaneously transmits the HARQ-ACK/NACK and the periodic CSI, the UE needs to select an appropriate resource for performing HARQ-ACK/NACK in the resources required for the UE to reserve the HARQ-ACK/NACK and the periodic CSI reserved for the UE respectively. And the transmission of periodic CSI.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In addition, Embodiments 1-8 describe specific operations corresponding to the flow shown in FIG. 2; Embodiments 9 and 10 describe specific operations corresponding to the flow shown in FIG. 3; Embodiments 11 and 12 are described with FIG. The specific operation corresponding to the process shown.

Example 1

It is assumed that in subframe i, the eNB reserves two available PUCCH format 3 resources for the UE, one resource for transmitting HARQ-ACK/NACK, another resource for transmitting periodic CSI, and the UE needing for current subframe i The HARQ-ACK/NACK and the periodic CSI are transmitted simultaneously.

It is assumed that the eNB uses the predefined indication mode to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and is currently predefined as the PUCCH format 3 resource selected according to the transmission slot.

It is assumed that the correspondence between the predefined subframe index i and the used PUCCH format 3 resource is: simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used for transmitting HARQ-ACK/NACK in odd subframes, even subframes The resource used in the transmission period CSI is used for simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Assuming that the current subframe index i is an odd number, the UE performs simultaneous transmission of HARQ-ACK/NACK and periodic CSI using resources used for transmitting HARQ-ACK/NACK. or,

Assuming that the current subframe index i is an even number, the UE performs simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used for the transmission period CSI.

Example 2

It is assumed that the eNB uses the predefined indication mode to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and is currently predefined to predefine a certain resource as the used PUCCH format 3 resource. It is pre-defined to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used to transmit HARQ-ACK/NACK.

Then, when the UE needs to transmit HARQ-ACK/NACK and periodic CSI at the same time, the UE uses the time transmission.

Or,

It is assumed that the eNB uses the predefined indication mode to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and predefine a certain resource as the used PUCCH format 3 resource. It is pre-defined to use the resources used by the transmission period CSI for simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Then, when the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI, the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Example 3

It is assumed that in subframe i, the eNB reserves two available PUCCH format 3 resources for the UE, one resource for transmitting HARQ-ACK/NACK, another resource for transmitting periodic CSI, and the UE for subframe i+4 It is necessary to transmit HARQ-ACK/NACK and periodic CSI at the same time. It is assumed that the eNB uses a predefined indication manner to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and is predefined to select a PUCCH format 3 resource to be used according to the received DCI format.

Assume that the correspondence between the predefined DCI format and the used PUCCH format 3 resource is:

If the DCI format received by the UE is DCI format 0/4, the UE uses the transmission transmission.

If the DCI format received by the UE is DCI format 1/1A/1B/1C/1D, the UE uses the resources used for transmitting HARQ-ACK/NACK to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

If the DCI format received by the UE is DCI format 2/2A/2B/2C, the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that the UE receives the DCI of the format DCI format 0 in the subframe i, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4. Then, the UE transmits according to the pre-defined periodic CSI.

Or,

It is assumed that the UE receives the DCI of the format DCI format 4 in the subframe i, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4. Then, the UE transmits according to the pre-defined periodic CSI.

Or,

It is assumed that the UE receives the DCI formatted as DCI format 1 in subframe i, and the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in subframe i+4. Then the UE is based on predefined rules Simultaneous transmission of CSI.

Or,

It is assumed that the UE receives the DCI of the format DCI format 2 in the subframe i, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4. Then, according to a predefined rule, the UE performs the simultaneous transmission of HARQ-ACK/NACK and periodic CSI by using resources used in the transmission period CSI.

Example 4

It is assumed that the eNB reserves two available PUCCH format 3 resources for the UE, one resource for transmitting HARQ-ACK/NACK and the other resource for transmitting periodic CSI, and the UE needs to transmit HARQ simultaneously in subframe i+4. ACK/NACK and periodic CSI.

It is assumed that the eNB uses the predefined indication mode to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and is currently predefined as the PUCCH format 3 resource selected for use according to the received DCI format content.

Assume that the correspondence between the predefined DCI format content and the used PUCCH format 3 resource is:

If the content of the transmission power command (TPC) in the received DCI is 00 or 01, the UE uses the resources used for transmitting the HARQ-ACK/NACK to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

If the content of the TPC command in the received DCI is 10 or 11, the UE uses the resources used in the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Assume that in the subframe i, the UE receives the DCI format 4, where the content of the TPC is 00, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4, according to the correspondence defined above, the UE is in the UE. The transmission of HARQ-ACK/NACK and periodic CSI is performed in the subframe i+4 using the resources used for transmitting the HARQ-ACK/NACK. or,

Assume that in the subframe i, the UE receives the DCI format 4, where the content of the TPC is 11, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4, according to the correspondence defined above, the UE is in the UE. In the subframe i+4, the resources used for the transmission period CSI are used for simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Or,

Assume that in the subframe i, the UE receives the DCI format 0, where the content of the TPC is 10, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4, according to the correspondence defined above, the UE is in the UE. In the subframe i+4, the resources used for the transmission period CSI are used for simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Or,

Assume that in the subframe i, the UE receives the DCI format 0, where the content of the TPC is 01, and the UE needs to simultaneously transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i+4, according to the correspondence defined above, the UE is in the UE. The transmission of HARQ-ACK/NACK and periodic CSI is performed in the subframe i+4 using the resources used for transmitting the HARQ-ACK/NACK.

Example 5

It is assumed that the eNB reserves two available PUCCH format 3 resources for the UE, one resource for transmitting HARQ-ACK/NACK and the other resource for transmitting periodic CSI, and the UE needs to transmit HARQ-ACK/ at the same time in subframe i. NACK and periodic CSI.

It is assumed that the eNB uses the pre-defined indication mode to instruct the UE to select one of the two resources to perform the transmission of the HARQ-ACK/NACK and the periodic CSI, and the current pre-defined is that the UE selects the used PUCCH format 3 resource according to the number of HARQ-ACK bits that need to be fed back. .

Assume that the pre-defined correspondence between the number of HARQ-ACK bits that need to be fed back and the PUCCH format 3 resource used is:

If the number of HARQ-ACK bits that the UE needs to feed back is greater than 5 bits, the UE uses the transmission. Transmission.

If the number of HARQ-ACK bits that the UE needs to feed back is less than 5 bits, the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in subframe i. In this case, the HARQ-ACK bit to be fed back is 4 bits, and the UE uses the resources used for the transmission period CSI to perform HARQ-ACK/NACK and periodic CSI. Simultaneous transmission.

Or

It is assumed that the UE needs to transmit HARQ-ACK/NACK and periodic CSI in the subframe i. In this case, the HARQ-ACK bit to be fed back is 8 bits, and the UE uses the transmission.

Example 6

It is assumed that the eNB uses the pre-defined indication mode to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission. Currently, the UE is pre-defined to select the PUCCH format 3 resource to be used according to the number of periodic CSI bits that need to be fed back.

Assume that the predefined number of periodic CSI bits that require feedback and the corresponding PUCCH format 3 resources are:

If the number of periodic CSI bits that the UE needs to feed back is less than 5 bits, the UE uses the transmission transmission.

If the number of periodic CSI bits that the UE needs to feed back is greater than 5 bits, the UE uses the transmission period. The resources used by the CSI perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in subframe i. In this case, the periodic CSI bit to be fed back is 4 bits, and the UE uses the resources used for transmitting HARQ-ACK/NACK to perform HARQ-ACK/NACK and Simultaneous transmission of periodic CSI.

Or,

It is assumed that the UE needs to transmit the HARQ-ACK/NACK and the periodic CSI in the subframe i. In this case, the periodic CSI bit to be fed back is 8 bits, and the UE uses the resources used in the transmission period CSI to perform HARQ-ACK/NACK and periodic CSI. Simultaneous transmission.

Example 7

It is assumed that the eNB uses the pre-defined indication mode to instruct the UE to select one of the two resources to perform the transmission of the HARQ-ACK/NACK and the periodic CSI. The current pre-defined is that the UE selects and uses the number of HARQ-ACK bits and the number of periodic CSI bits that are required to be fed back. PUCCH format 3 resource.

It is assumed that the predefined number of HARQ-ACK bits to be fed back, the number of periodic CSI bits, and the corresponding PUCCH format 3 resources are:

If the number of HARQ-ACK/NACK bits that the UE needs to feed back is greater than the number of periodic CSI bits, the UE uses the resources used for transmitting HARQ-ACK/NACK to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

If the number of HARQ-ACK/NACK bits that the UE needs to feed back is less than the number of periodic CSI bits, the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that the UE needs to transmit HARQ-ACK/NACK and periodic CSI simultaneously in subframe i, this When the HARQ-ACK/NACK that needs to be fed back is 8 bits, and the periodic CSI is 4 bits, the UE uses the resources used for transmitting the HARQ-ACK/NACK to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Or,

It is assumed that the UE needs to simultaneously transmit HARQ-ACK/NACK and periodic CSI in subframe i. In this case, the HARQ-ACK/NACK to be fed back is 4 bits, and the periodic CSI is 8 bits, then the UE uses the resources used in the transmission period CSI. Simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Example 8

It is assumed that the eNB uses the pre-defined indication mode to instruct the UE to select one of the two resources to perform the transmission of the HARQ-ACK/NACK and the periodic CSI, which is currently defined as the UE needs to use according to the index of the HARQ-ACK/NACK and the periodic CSI simultaneous transmission. resource of.

The mapping between the index of the current predefined HARQ-ACK/NACK and the periodic CSI and the used PUCCH format 3 resource is: When the HARQ-ACK/NACK and the periodic CSI are simultaneously transmitted in the odd-numbered times, the HARQ is transmitted for the UE. - PUCCH format 3 resource reserved for ACK/NACK; PUCCH format 3 resource reserved for UE transmission period CSI during the even simultaneous simultaneous transmission.

Then, when the UE transmits the HARQ-ACK/NACK and the periodic CSI for the first time in the subframe i, the UE selects the resource used for transmitting the HARQ-ACK/NACK to perform the simultaneous transmission of the HARQ-ACK/NACK and the periodic CSI.

Or,

When the UE transmits HARQ-ACK/NACK and periodic CSI simultaneously in subframe i for the second time, The UE selects to use the resources used for the transmission period CSI for simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Example 9

It is assumed that the eNB uses the signaling (eg, physical layer signaling) indication manner to instruct the UE to select one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission, and the content of the PUCCH format 3 resource selection field in the signaling The correspondence between the used PUCCH format 3 resources is:

0 indicates that the UE uses the resources used for transmitting HARQ-ACK/NACK for simultaneous transmission of HARQ-ACK/NACK and periodic CSI; 1 indicates that the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that in the signaling received by the UE in the subframe i, the content of the PUCCH format 3 resource selection field is 0, the UE uses the resources used for transmitting HARQ-ACK/NACK in the subframe i+4 to perform HARQ-ACK/NACK and Simultaneous transmission of periodic CSI.

Or,

It is assumed that in the signaling received by the UE in the subframe i, the content of the PUCCH format 3 resource selection field is 1, the UE uses the resources used in the transmission period CSI for the HARQ-ACK/NACK and the periodic CSI in the subframe i+4. Simultaneous transmission.

Example 10

It is assumed that the eNB uses signaling (eg, RRC signaling) indication mode to instruct the UE to select the above two One of the resources performs the transmission of the HARQ-ACK/NACK and the periodic CSI, and the correspondence between the content of the PUCCH format 3 resource selection field in the signaling and the used PUCCH format 3 resource is:

It is assumed that the content of the PUCCH format 3 resource selection field is 0 in the signaling received by the UE, and the UE uses the resources used for transmitting HARQ-ACK/NACK in the subframe i to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Or,

It is assumed that the content of the PUCCH format 3 resource selection field is 1 in the signaling received by the UE, and the UE uses the resources used in the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI in the subframe i.

Example 11

It is assumed that the eNB indicates that the UE selects one of the two resources to perform HARQ-ACK/NACK and periodic CSI transmission using an indication manner combined with a predetermined signaling (e.g., physical layer signaling).

It is assumed that the eNB pre-defined two predefined modes, one of which is a PUCCH format 3 resource selected according to a transmission slot, a transmission transmission for an odd subframe, and a resource for a transmission period CSI for an even subframe. Simultaneous transmission of HARQ-ACK/NACK and periodic CSI. Another predefined way is to select the PUCCH format 3 resource to use according to the number of HARQ-ACK bits that need to be fed back. If the number of HARQ-ACK bits that the UE needs to feed back is greater than 5 bits, the UE performs the simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used for transmitting the HARQ-ACK/NACK. If the number of HARQ-ACK bits that the UE needs to feed back is less than 5 bits, the UE uses the resources used for the transmission period CSI to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

It is assumed that the predefined indication in the signaling field 0 corresponds to the PUCCH format 3 resource selected according to the transmission slot; 1 corresponding to the PUCCH format 3 resource selected according to the number of HARQ-ACK bits to be fed back.

Assuming that the UE pre-defines the indication field to 0 in the signaling received by the subframe i, and the subframe i+4 is an odd subframe, the UE uses the resources used for transmitting the HARQ-ACK/NACK in the subframe i+4. Simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Or,

It is assumed that the UE pre-defined the indication field in the signaling received by the subframe i is 0, and the subframe i+4 is an even subframe, the UE uses the resources used in the transmission period CSI for the HARQ-ACK in the subframe i+4. Simultaneous transmission of /NACK and periodic CSI.

Or,

It is assumed that the UE pre-defined the indication field in the signaling received by the subframe i is 1, and the HARQ-ACK bit that the UE needs to feed back in the subframe i+4 is 4 bits, and the UE uses the resources used in the transmission period CSI to perform HARQ-ACK. Simultaneous transmission of /NACK and periodic CSI.

Or,

It is assumed that the UE has a predefined indication field of 1 in the signaling received by the subframe i, and the UE needs to feed back the HARQ-ACK bit in the subframe i+4, and the UE uses the resources used for transmitting the HARQ-ACK/NACK. Simultaneous transmission of HARQ-ACK/NACK and periodic CSI.

Example 12 It is assumed that the eNB reserves two available PUCCH format 3 resources for the UE, one resource for transmitting HARQ-ACK/NACK and the other resource for transmitting periodic CSI, and the UE needs to transmit HARQ-ACK/ at the same time in subframe i. NACK and periodic CSI.

It is assumed that the eNB instructs the UE to select one of the two resources for HARQ-ACK/NACK and periodic CSI transmission using an indication in combination with a pre-defined signaling (e.g., RRC signaling).

It is assumed that the eNB pre-defined two predefined modes, one of which is to select a PUCCH format 3 resource to be used according to the number of periodic CSI bits that need to be fed back. If the number of periodic CSI bits that the UE needs to feed back is less than 5 bits, the UE uses The resources used for transmitting the HARQ-ACK/NACK are simultaneously transmitted for HARQ-ACK/NACK and periodic CSI. If the number of periodic CSI bits that the UE needs to feed back is greater than 5 bits, the UE performs simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used for the transmission period CSI.

Another predefined way is to predefine a resource as a PUCCH format 3 resource. It is pre-defined to perform simultaneous transmission of HARQ-ACK/NACK and periodic CSI using the resources used to transmit HARQ-ACK/NACK.

It is assumed that the predefined indication in the signaling field 0 corresponds to the PUCCH format 3 resource selected according to the number of periodic CSI bits to be fed back; 1 corresponds to pre-defining a certain resource as the used PUCCH format 3 resource.

Assuming that the UE pre-defined the indication field in the signaling received by the subframe i is 0, and the periodic CSI bit that the UE needs to feed back in the subframe i is 4 bits, the UE uses the resources used for transmitting the HARQ-ACK/NACK to perform the HARQ. Simultaneous transmission of -ACK/NACK and periodic CSI.

Or,

It is assumed that the UE pre-defined the indication field in the signaling received by the subframe i is 0, and the periodic CSI bit that the UE needs to feed back in the subframe i is 8 bits, the UE uses the resources used for the transmission period CSI to perform HARQ-ACK/ Simultaneous transmission of NACK and periodic CSI. or,

It is assumed that the UE pre-defines the indication field to 1 in the signaling received by the subframe i, and the UE uses the transmission transmission.

As shown in the above description, the operation of transmitting HARQ response information and CSI in the embodiment of the present invention may represent a process as shown in FIG. 5, and the process includes the following steps:

Step 510: Reserve at least two available PUCCH format 3 resources for the UE, where one resource is used to transmit HARQ response information in a normal state, and the other resource is used to transmit CSI in a normal state.

Step 520: Instruct the UE to select one of the foregoing resources to perform simultaneous transmission of the HARQ response information and the periodic CSI.

It should be noted that the main body of the foregoing operation may be an eNB, or may be a resource manager such as an eNB, as long as the PUCCH format 3 resource can be reserved for the UE, and the UE is instructed to select one of the resources to perform a HARQ response. Simultaneous transmission of information and periodic CSI is sufficient.

In summary, the method for transmitting HARQ response information and CSI in the embodiment of the present invention can instruct the UE to select an appropriate PUCCH format 3 resource for HARQ response information and simultaneous transmission of CSI, which can reduce the system. Interference, reducing the energy loss of the UE.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

claims

1. A method of transmitting hybrid automatic repeat request HARQ response information and channel state information CSI, including:

Reserve at least two available PUCCH format 3 resources for the user equipment UE, one of which is used to transmit HARQ response information under normal conditions, and the other resource is used to transmit CSI under normal conditions;

Instruct the UE to select one of the above resources for simultaneous transmission of HARQ response information and CSI.

2. The method according to claim 1, wherein,

The HARQ response information includes HARQ-correct response information/error response information HARQ-ACK/NACK; the CSI is periodic CSI or aperiodic CSI;

When the UE needs to transmit HARQ-ACK/NACK and periodic CSI at the same time in the current subframe, the indicated operation is performed.

3. The method according to claim 1 or 2, wherein the indication method includes: Predefined indication method: The UE uses one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSI; or,

Signaling indication method: Instruct the UE through signaling to use one of the resources to transmit HARQ-ACK/NACK and periodic CSI simultaneously; or,

Instruction method combining predefinition and signaling: By combining predefinition and signaling, the UE is instructed to use one of the resources to transmit HARQ-ACK/NACK and periodic CSI simultaneously.

4. The method according to claim 3, wherein,

The predefined instructions include: predefining a selection method for the UE to select PUCCH format 3 resources and making an agreement with the UE. The UE directly selects the PUCCH format 3 resources according to the predefined resource selection method to send HARQ-ACK/NACK and periodic CSI.

5. The method according to claim 4, wherein, for the predefined indication mode, the UE Methods for selecting PUCCH format 3 resources include:

Select the PUCCH format 3 resources used based on the transmit timeslot; or,

Select the PUCCH format to use based on the received downlink control information format DCI format.

3 resources; or,

Select the PUCCH format 3 resource to be used based on the received DCI format content; or, select the PUCCH format 3 resource to be used based on the number of HARQ-ACK bits that need to be fed back; or,

Select the PUCCH format 3 resource to be used based on the number of periodic CSI bits that need to be fed back; or,

Select the PUCCH format 3 resource to be used based on the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits; or,

Determine the resources to be used based on the transmission number index of HARQ-ACK/NACK and periodic CSI simultaneous transmission.

6. The method according to claim 5, wherein,

When selecting the PUCCH format 3 resource to be used according to the transmission time slot, define the corresponding relationship between the subframe index when the UE sends PUCCH format 3 and the PUCCH format 3 resource selected by the UE, and the UE selects the corresponding PUCCH format 3 resource according to the subframe index;

When selecting the PUCCH format 3 resource to be used based on the received DCI format, define the corresponding relationship between the DCI format received by the UE and the PUCCH format 3 resource selected by the UE, and the UE selects the corresponding PUCCH format 3 resource according to the received DCI format;

When selecting the PUCCH format 3 resource to be used based on the received DCI format content, define the correspondence between the DCI format content received by the UE and the PUCCH format 3 resource selected by the UE. The UE selects the corresponding PUCCH format 3 based on the received DCI format content. Resources; When selecting the PUCCH format 3 resources to be used based on the number of HARQ-ACK bits that need to be fed back, define the number of HARQ-ACK bits that the UE needs to feed back and the PUCCH selected by the UE. Format 3 resource correspondence, the UE selects the corresponding PUCCH format 3 resource according to the number of HARQ-ACK bits that need to be fed back;

When selecting the PUCCH format 3 resource to be used based on the number of periodic CSI bits that need to be fed back, define the correspondence between the number of periodic CSI bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, and the UE selects the corresponding PUCCH format 3 resource based on the number of periodic CSI bits that need to be fed back. PUCCH format 3 resources;

When selecting the PUCCH format 3 resources to be used based on the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits, define the corresponding relationship between the number of HARQ-ACK bits that the UE needs to feed back, the number of periodic CSI bits and the PUCCH format 3 resources selected by the UE. Or define the relationship between the number of HARQ-ACK bits that the UE needs to feed back and the number of periodic CSI bits, and the corresponding relationship with the PUCCH format 3 resources selected by the UE; the UE needs to feedback according to the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits or need The relationship between the number of HARQ-ACK bits and the number of periodic CSI bits, select the corresponding PUCCH format 3 resources;

When determining the resources to be used based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission, define the corresponding relationship between the transmission number index of HARQ-ACK/NACK and periodic CSI simultaneous transmission and the PUCCH format 3 resources selected by the UE, and the UE shall determine The fed back HARQ-ACK/NACK and the transmission number index of periodic CSI simultaneous transmission select the corresponding PUCCH format 3 resources.

7. The method according to claim 3, wherein,

The signaling instructions include: instructing the UE to select PUCCH format 3 resources through signaling, and the UE selects PUCCH format 3 resources according to the content indicated by the signaling to send HARQ-ACK/NACK and periodic CSI.

8. The method according to claim 7, wherein the type of signaling is physical layer signaling or high layer signaling.

9. The method according to claim 8, wherein,

When the type of signaling is physical layer signaling, add PUCCH format 3 to the DCI information. The resource selection field instructs the UE to select PUCCH format 3 resources through the signaling content in the domain; when the type of signaling is high-level signaling, a PUCCH format 3 resource selection field is added to the radio resource control RRC information, and the PUCCH format 3 resource selection field is added through the signaling content in the domain. Let the content instruct the UE to select PUCCH format 3 resources.

10. The method according to claim 3, wherein the predefined instructions combined with signaling include:

Predefine a variety of selection methods for the UE to select PUCCH format 3 resources and notify the UE. Instruct the UE to select the predefined PUCCH format 3 resource selection method through the predefined indication field in the signaling. The UE selects PUCCH according to the selected predefined resource selection method. Format 3 resources are used to send HARQ-ACK/NACK and periodic CSI.

11. A device for transmitting HARQ response information and CSI, configured as:

Reserve at least two available PUCCH format 3 resources for the UE, one of which is used to transmit HARQ response information under normal conditions, and the other resource is used to transmit CSI under normal conditions; and, instruct the UE to select one of the above resources for HARQ. Simultaneous transmission of response information and CSI.

12. The device according to claim 11, wherein,

The HARQ response information includes HARQ-ACK/NACK; the CSI is periodic CSI; and the device is configured to perform the indication operation when the UE needs to transmit HARQ-ACK/NACK and periodic CSI simultaneously in the current subframe.

13. The device according to claim 11 or 12, wherein the indication method includes: a predefined indication method, a signaling indication method, or a predefined indication method combined with signaling; wherein, the predefined indication is performed When , the device is configured to: instruct the UE to simultaneously transmit HARQ-ACK/NACK and periodic CSI using one of the resources in a predefined order;

When performing the signaling indication, the device is configured to: instruct the UE through signaling to use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSI;

When performing the instruction of combining the predefinition and signaling, the device is configured to: use the predefined Combined with signaling, instruct the UE to use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSL

14. The device according to claim 13, wherein,

When performing the predefined instruction, the device is configured to: predefine a selection method for the UE to select PUCCH format 3 resources and make an agreement with the UE, and instruct the UE to directly select the PUCCH format 3 resource for HARQ-ACK according to the predefined resource selection method. /NACK and periodic CSI transmission.

15. The device according to claim 14, wherein when applying the predefined indication method, the device is configured to:

Instruct the UE to select the PUCCH format 3 resources to use based on the transmission time slot; or, instruct the UE to select the PUCCH format 3 resources to use based on the received DCI format; or,

Instruct the UE to select the PUCCH format 3 resources to use based on the received DCI format content; or,

Instruct the UE to select the PUCCH format 3 resource to use based on the number of HARQ-ACK bits that need to be fed back; or,

Instruct the UE to select the PUCCH format 3 resources to use based on the number of periodic CSI bits that need to be fed back; or,

Instruct the UE to select the PUCCH format 3 resource to use based on the number of HARQ-ACK bits and the number of periodic CSI bits that need to be fed back; or,

Instructs the UE to determine the resources to be used based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission.

16. The device according to claim 15, wherein,

When instructing the UE to select the PUCCH format 3 resource to be used according to the transmission time slot, the device is configured to: define the subframe index when the UE sends PUCCH format 3 and the PUCCH selected by the UE. The correspondence between format 3 resources instructs the UE to select the corresponding PUCCH format 3 resources according to the subframe index;

When instructing the UE to select the PUCCH format 3 resource to be used according to the received DCI format, the device is configured to: define a correspondence between the DCI format received by the UE and the PUCCH format 3 resource selected by the UE, and instruct the UE to select the PUCCH format 3 resource according to the received DCI format. Select the corresponding PUCCH format 3 resource;

When instructing the UE to select the PUCCH format 3 resource to be used according to the received DCI format content, the device is configured to: define the corresponding relationship between the DCI format content received by the UE and the PUCCH format 3 resource selected by the UE, and instruct the UE to select the PUCCH format 3 resource according to the received content. DCI format content selects the corresponding PUCCH format 3 resource;

When instructing the UE to select the PUCCH format 3 resource according to the number of HARQ-ACK bits that need to be fed back, the device is configured to: define a correspondence between the number of HARQ-ACK bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, instruct the UE Select the corresponding PUCCH format 3 resource according to the number of HARQ-ACK bits that need to be fed back;

When instructing the UE to select the PUCCH format 3 resource according to the number of periodic CSI bits that need to be fed back, the device is configured to: define a correspondence between the number of periodic CSI bits that the UE needs to feed back and the PUCCH format 3 resource selected by the UE, and instruct the UE to select the PUCCH format 3 resource as needed. The number of periodic CSI bits fed back selects the corresponding PUCCH format 3 resource;

When instructing the UE to select the PUCCH format 3 resource to be used based on the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits, the device is configured to: define the number of HARQ-ACK bits that the UE needs to feed back, the number of periodic CSI bits and the number of periodic CSI bits that the UE selects. Correspondence between PUCCH format 3 resources, or define the relationship between the number of HARQ-ACK bits that the UE needs to feed back and the number of periodic CSI bits, and the correspondence between the PUCCH format 3 resources selected by the UE; instruct the UE to feed back the HARQ-ACK bits according to the need The relationship between the number and the number of periodic CSI bits or the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits, select the corresponding PUCCH format 3 resources;

When instructing the UE to determine the resources to be used based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission, the device is configured to: define the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission and the PUCCH format 3 resource selected by the UE. The corresponding relationship indicates that the UE selects the corresponding PUCCH format 3 resource according to the HARQ-ACK/NACK that needs to be fed back and the index of periodic CSI simultaneous transmission.

17. The device according to claim 13, wherein,

When performing the signaling indication, the device is configured to: instruct the UE to select PUCCH format 3 resources through signaling, and instruct the UE to select PUCCH format 3 resources according to the content indicated by the signaling to send HARQ-ACK/NACK and periodic CSI. .

18. The apparatus according to claim 17, wherein the type of signaling is physical layer signaling or high layer signaling.

19. The device according to claim 18, wherein,

When the type of signaling is physical layer signaling, the device is configured to: add a PUCCH format 3 resource selection field in the DCI information, and instruct the UE to select PUCCH format 3 resources through the signaling content in the field;

When the type of signaling is high-layer signaling, the device is configured to: add a PUCCH format 3 resource selection field in the RRC information, and instruct the UE to select PUCCH format 3 resources through the signaling content in the field.

20. The device according to claim 13, wherein when performing the instruction combining the predefinition and signaling, the device is configured to:

Predefine multiple selection methods for the UE to select PUCCH format 3 resources and notify the UE. Instruct the UE to select the predefined PUCCH format 3 resources through the predefined indication field in the signaling. Instruct the UE to select PUCCH format 3 according to the predefined resource selection method. The resources transmit HARQ-ACK/NACK and periodic CSI.

21. The device according to claim 11, wherein the device is a base station.

22. A device for transmitting HARQ response information and CSI, configured as:

Receive the instruction, and select one of the at least two available PUCCH format 3 resources reserved for simultaneous transmission of HARQ response information and CSI according to the received instruction;

Among the reserved PUCCH format 3 resources, one resource is used to transmit HARQ response information under normal conditions, and the other resource is used to transmit CSI under normal conditions.

23. The device according to claim 22, wherein,

The HARQ response information includes HARQ-ACK/NACK; the CSI is periodic CSI; and the device is configured to: perform the selection operation when the current subframe needs to transmit HARQ-ACK/NACK and periodic CSI simultaneously.

24. The device according to claim 22 or 23, wherein the indication method includes: a predefined indication method, a signaling indication method or a predefined indication method combined with signaling; wherein the device receives the After the predefined indication, the configuration is: using one of the resources in a predefined order to simultaneously transmit HARQ-ACK/NACK and periodic CSI;

After receiving the signaling indication, the device is configured to: use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSI according to the received signaling indication;

After receiving the indication of combining the predefinition and signaling, the device is configured to: use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSI through the combination of predefinition and signaling.

25. The device according to claim 24, wherein,

After receiving the predefined indication, the device is configured to: directly select PUCCH format 3 resources according to the predefined PUCCH format 3 resource selection method to send HARQ-ACK/NACK and periodic CSI.

26. The device according to claim 25, wherein, after receiving the predefined indication, the device is configured to: Select the PUCCH format 3 resources used according to the transmission time slot; or,

Select the PUCCH format 3 resource to be used based on the received DCI format; or, select the PUCCH format 3 resource to be used based on the received DCI format content; or, select the PUCCH format 3 resource to be used based on the number of HARQ-ACK bits that need to be fed back; or,

Determine the resources to be used based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission.

27. The device according to claim 26, wherein,

When selecting the PUCCH format 3 resource to be used according to the transmission time slot, the device is configured to: select the corresponding PUCCH according to the subframe index according to the defined correspondence between the subframe index when transmitting PUCCH format 3 and the selected PUCCH format 3 resource. format 3 resources;

When selecting the PUCCH format 3 resource to be used according to the received DCI format, the device is configured to: select the corresponding PUCCH format 3 according to the received DCI format according to the corresponding relationship between the received DCI format and the selected PUCCH format 3 resource. resource;

When selecting the PUCCH format 3 resource to be used according to the received DCI format content, the device is configured to: select the corresponding PUCCH format 3 resource according to the received DCI format content according to the corresponding relationship between the received DCI format content and the selected PUCCH format 3 resource. PUCCH format 3 resources;

When selecting the PUCCH format 3 resources to be used based on the number of HARQ-ACK bits that need to be fed back, the device is configured to: based on the corresponding relationship between the number of HARQ-ACK bits that need to be fed back and the selected PUCCH format 3 resources, based on the HARQ-ACK bits that need to be fed back. The number of ACK bits selects the corresponding PUCCH format 3 resource; When selecting the PUCCH format 3 resources to be used based on the number of periodic CSI bits that need to be fed back, the device is configured to: based on the corresponding relationship between the number of periodic CSI bits that need to be fed back and the selected PUCCH format 3 resources, based on the number of periodic CSI bits that need to be fed back The quantity selects the corresponding PUCCH format 3 resource;

Select the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits.

When using PUCCH format 3 resources, the device is configured to: based on the corresponding relationship between the number of HARQ-ACK bits that need to be fed back, the number of periodic CSI bits, and the selected PUCCH format 3 resources, or based on the relationship between the number of HARQ-ACK bits that need to be fed back and the periodic CSI The relationship between the number of bits and the selected PUCCH format 3 resource; According to the relationship between the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits or the number of HARQ-ACK bits that need to be fed back and the number of periodic CSI bits, select Corresponding PUCCH format 3 resources; When determining the resources to be used based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission, the device is configured to: Based on the index of HARQ-ACK/NACK and periodic CSI simultaneous transmission and the selected PUCCH For the correspondence between format 3 resources, select the corresponding PUCCH format 3 resources according to the HARQ-ACK/NACK and periodic CSI simultaneous transmission indexes that need to be fed back.

28. The device according to claim 24, wherein,

After receiving the signaling indication, the device is configured to: select PUCCH format 3 resources according to the content indicated by the signaling to send HARQ-ACK/NACK and periodic CSI.

29. The apparatus according to claim 28, wherein the type of signaling is physical layer signaling or high layer signaling.

30. The device according to claim 29, wherein,

When the type of signaling is physical layer signaling, the device is configured to: select the PUCCH format 3 resource according to the signaling content in the PUCCH format 3 resource selection domain added in the DCI information; When the type of signaling is high-layer signaling, the device is configured to: select the PUCCH format 3 resource according to the signaling content in the PUCCH format 3 resource selection domain added in the RRC information.

31. The device according to claim 24, wherein, after receiving the indication combining the predefinition and signaling, the device is configured to:

Select the predefined PUCCH format 3 resource according to the predefined indication field in the received signaling, and select the PUCCH format 3 resource according to the predefined resource selection method to send HARQ-ACK/NACK and periodic CSI.

32. The device according to claim 22, wherein the device is a UE.

33. A system for transmitting HARQ response information and CSI, including a base station and a UE; wherein, the base station is configured to: reserve at least two available PUCCH format 3 resources for the UE, one of which is used to transmit HARQ under normal conditions Response information, another resource is used to transmit CSI under normal conditions; and, instruct the UE to select one of the above resources for simultaneous transmission of HARQ response information and CSI;

The UE is configured to: receive an instruction from the base station, and select one of at least two available PUCCH format 3 resources reserved for simultaneous transmission of HARQ response information and CSI according to the received instruction.

34. The system of claim 33, wherein,

The HARQ response information includes HARQ-ACK/NACK; the CSI is periodic CSI; and the base station is configured to perform the indication operation when the UE needs to transmit HARQ-ACK/NACK and periodic CSI simultaneously in the current subframe.

35. The system according to claim 33 or 34, wherein the indication method includes: a predefined indication method, a signaling indication method, or a predefined indication method combined with signaling; wherein, the predefined indication is performed When , the base station is configured to: instruct the UE to simultaneously transmit HARQ-ACK/NACK and periodic CSI using one of the resources in a predefined order; When performing the signaling indication, the base station is configured to: instruct the UE through signaling to use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSI;

When performing the instruction combining the predefinition and signaling, the base station is configured to: instruct the UE to use one of the resources to simultaneously transmit HARQ-ACK/NACK and periodic CSL through the combination of predefinition and signaling.