WO2012019538A1

WO2012019538A1 - Method and device for transmitting and receiving uplink control information (uci)

Info

Publication number: WO2012019538A1
Application number: PCT/CN2011/078197
Authority: WO
Inventors: 高雪娟; 沈祖康; 林亚男; 潘学明
Original assignee: 电信科学技术研究院
Priority date: 2010-08-10
Filing date: 2011-08-10
Publication date: 2012-02-16
Also published as: CN102377537B; CN102377537A

Abstract

The present invention relates to the wireless communication technology field, and it discloses a method and a device for transmitting and receiving Uplink Control Information (UCI). The method includes the following steps: a User Equipment (UE) confirms an uplink carrier on which a Physical Uplink Control Channel (PUCCH) transmitting the UCI locates and an uplink carrier on which a Physical Uplink Share Channel (PUSCH) transmitting the UCI locates; the UE transmits Acknowledgment (ACK)/ Negative Acknowledgment (NACK) information through the PUCCH on the uplink carrier on which the PUCCH transmitting the UCI locates; the UE transmits channel state information through the PUSCH on the uplink carrier on which the PUSCH transmitting the UCI locates. The present invention provides a solution that is supportive for UCI to be transmitted on the PUCCH and the PUSCH simultaneously. which is suitable for being applied in the Long Term Evolution Advanced (LET-A) system and is compatible with the Long Term Evolution (LET) system. The reliability of transmission is ensured, and the accuracy of schedule is provided at the same time.

Description

Uplink control information UCI transmission and reception method and device The application is submitted to the Chinese Patent Office on August 10, 2011, the application number is 201010250200.4, and the invention name is

The priority of the Chinese Patent Application, which is incorporated herein by reference. Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to an uplink control information UCI transmission and reception method and device.

Background technique

In the LTE (Long Term Evolution) system, the UE feeds back the downlink carrier in the uplink subframe.

UCI (Uplink Control Information).

The UCI includes three types of information: periodic and aperiodic channel state information, and the channel state information specifically includes any of the following three parameters: CQK Channel Quality Indicator, PMI (Precoding Matrix)

Indicator, Precoding, RI ( Rank Indication), ACK (Acknowledgment), NACK (Negative Acknowledgment), SR (Scheduling Request) information.

The UCI transmission mechanism in the LTE Rel-8 system is that the UCI can be transmitted on the PUCCH (Physical Uplink Control Channel) or the PUSCH (Physical Uplink Share Channel) and the data complex. Use transmission. In order to maintain the single carrier characteristic of the LTE system, the LTE Rel-8 system does not support the same UE transmitting UCI on PUCCH and PUSCH simultaneously in one uplink subframe. The PUCCH transmission period CQI/PMI/RI, ACK/NACK, and SR only occur in the uplink subframe where there is no PUSCH transmission, and in the uplink subframe in which the PUSCH transmission exists, the CQI/PMI/RI and ACK/NACK feedback information are required. The data is multiplexed and transmitted on the PUSCH, and the SR is transmitted as a MAC PDU on the PUSCH.

The specific transmission mechanism of UCI in LTE Rel-8 system is described in detail as follows:

If the UE only feeds back one type of information in the UCI in the current uplink subframe, the UE may transmit on the PUCCH or transmit on the PUCCH according to the system configuration and the specific scheduling situation. For the case of only feedback CQI/PMI/RI, if it is a periodic CQI/PMI/RI report, it is generally transmitted on the PUCCH, and if it is an aperiodic CQI/PMI/RI report, it is generally transmitted on the PUSCH. When the aperiodic CQI/PMI/RI is transmitted in the PUSCH, it is triggered by the lbit CQI request information in the UL grant (uplink grant). When the UE detects that the information position in the UL grant is 1, it follows the pre- The first configured feedback mode organizes the relevant CQI/PMI/RI to be multiplexed into the PUSCH for transmission, otherwise it is not transmitted. When transmitting on the PUCCH, it is transmitted on the PUCCH using a defined transmission format corresponding to different transmission requirements. When the ACK/NACK is transmitted on the PUCCH separately, the transport format PUCCH format la/lb may be used; when the SR is transmitted on the PUCCH separately, the transport format PUCCH format 1 is used; the periodic CQI/PMI/RI is reported according to the pre-configured report. The period is transmitted in the PUCCH, and the transport format PUCCH format 2/2a/2b can be used.

When the data is multiplexed and transmitted on the PUSCH, as shown in FIG. 1, the resources transmitted by the CQI/PMI on the PUSCH are reserved according to the length and configuration of the feedback information of the CQI/PMI, and the data part does not occupy the transmission resource of the CQI/PMI. The RI information is obtained by puncturing the uplink data, and the four-column symbol of the ACK/NACK is immediately mapped from the low frequency to the high frequency after the time domain. The ACK/NACK is mapped on both sides of the reference symbol in the first-time domain and the low-frequency to high-frequency, and the SR is transmitted as a MAC PDU on the PUSCH.

The UE may also have a periodic SRS (Sounding Reference Symbol) in an uplink subframe. The relevant parameters (including the period, SRS bandwidth, etc.) of the SRS transmission are UE-specific and semi-statically configured by the base station. Can be sent on the last SC-FDMA symbol in the uplink subframe in which the SRS transmission is configured.

The different types of information in the UCI and the simultaneous transmission mechanism with the above SRS are as follows:

Because the PUSCH physical resources mapped in the above various types of UCI information transmission are defined on the PUSCH,

Simultaneous transmission of all types of UCI information and simultaneous transmission of any number of types of UCI information are supported when transmitting on the PUSCH. When the CQI/PMI/RI feedback information, the ACK/NACK feedback information, the SR and the SRS information in the same uplink subframe are simultaneously transmitted on the PUSCH, the last symbol in the uplink subframe is reserved for transmitting the SRS, and the data information is transmitted according to the SRS. Rate matching is performed.

When the periodic CQI/PMI/RI and the aperiodic CQI/PMI/RI are in the same uplink subframe, the UE discards the periodic CQI/PMI/RI report, and only reports the aperiodic CQI/PMI/RI on the PUSCH.

The different types of information in the UCI on PUCCH and the simultaneous transmission mechanism with the above SRS are as follows:

1) Feedback ACK/NACK and SR

LTE Rel-8 supports simultaneous transmission of ACK/NACK and SR, and simultaneously transmits PUCCH format 1 to transmit ACK/NACK information on the channel resources of the SR.

2) Feedback ACK/NACK and period CQI/PMI/RI

The base station can semi-statically configure whether the UE supports ACK/NACK and periodic CQI/PMI/RI transmission at the PUCCH through the parameter simultaneousAckNackAndCQI.

When the parameter is False and does not support simultaneous transmission, when the ACK/NACK and the periodic CQI/PMI/RI need to use the PUCCH transmission in the same uplink subframe, the UE will drop the periodic CQI/PMI/RI and only feed back ACK/ NACK.

When the parameter is True, simultaneous transmission is supported, and the ACK/NACK information at this time indicates a packet scheduling time. 1 bit ACK/NACK feedback information or multiple packet scheduling when checking the ACK/NACK feedback information obtained in Table 1

The 2-bit transmission information corresponding to the number of ACKs.

Table 1 Corresponding transmission information corresponding to multiple ACK/NACK feedback information

Under the conventional CP, the transport format PUCCH format 2a/2b is used, and the ACK/NACK information is mapped and transmitted in the second column of pilot resources. Under the extended CP, the PUCCH format 2 is used, and the ACK/NACK information is jointly encoded with the periodic CQI/PMI/RI information and mapped to the corresponding resources.

3) Feedback period CQI/PMI/RI and SR

When the SR collides with the periodic CQI/PMI/RI in the same uplink subframe of the PUCCH, the UE only reports the SR, and uses the transport format PUCCH format 1 to discard the periodic CQI/PMI/RI.

4) Feedback ACK/NACK, period CQI/PMI/RI and SR

The UE performs 4 艮 SR and ACK/NACK on the PUCCH in a 1) manner, and discards the period CQI/PMI/RI.

5) Feedback ACK/NACK and / or SR and SRS

The base station can semi-statically configure whether the UE supports simultaneous transmission of SRS and ACK/NACK and/or SR in the same uplink subframe in the PUCCH through the parameter ackNackSRS-SimultaneousTransimission.

If the parameter is False, when the ACK/NACK and/or SR and SRS are transmitted in the same subframe on the PUCCH, the UE will discard the SRS and only feed back ACK/NACK and/or SR.

If the parameter is True, the UE may simultaneously transmit SRS and ACK/NACK and/or SR on the PUCCH in one subframe, and transmit using the transmission format shortened PUCCH format 1/1 a/lb, where the so-called shortened PUCCH is The ACK/NACK and/or SR are not transmitted on the last symbol in the subframe, and the UE will be in the predetermined configuration. The SRS is transmitted on the symbol.

It should be noted that the parameter ackNackSRS-SimultaneousTransimission is a cell-specific parameter, that is, when the SRS is configured to transmit simultaneously with the ACK/NACK and/or the SR, in the uplink subframe of the system configured to transmit the SRS, all The UE can only transmit ACK/NACK and/or SR in the subframe using shortened PUCCH format 1/la/lb regardless of whether the UE is configured to transmit the SRS in the subframe.

For LTE-A (Long Term Evolution-Adavance) systems, also known as long-term evolution multi-carrier systems, to support a wider system bandwidth than LTE systems, such as 100MHz, a spectrum that may directly allocate 100M bandwidth As shown in Figure 2; one possibility is to aggregate some spectrum allocated to the existing system and make it into a large bandwidth for long-term evolution multi-carrier system. In this case, the uplink and downlink carriers in the system can be asymmetrically configured, that is, the user may It will occupy N ≥ 1 carrier for downlink transmission, and M ≥ 1 carrier for uplink transmission, as shown in Figure 3.

In the LTE-A system, when the base station aggregates multiple downlink carriers to transmit data to the user, the UE will feed back the UCI corresponding to the multiple downlink carriers in one uplink subframe. There are many UCI feedback bits, and different types of UCI information may not be fed back simultaneously on one PUCCH channel.

LTE-A currently determines that a maximum of five carriers can be aggregated, that is, in the same uplink subframe, the UE needs to feed back UCI information corresponding to multiple downlink carriers, and the amount of feedback information of ACK/NACK and CQI/PMI/RI is large. In order to facilitate the uplink scheduling, the UE also needs to send the SRS on multiple carriers. If the transmission is still performed according to the LTE Rel-8 simultaneous transmission mechanism, the probability that the SRS and the periodic CQI/PMI/RI are discarded is large, and thus the base station cannot The channel conditions of the uplink and downlink carriers are obtained in time, thereby affecting scheduling.

In addition, it is considered that the reliability of the ACK/NACK information in the PUCCH transmission is higher than that on the PUSCH, and the impact of the multi-bit ACK/NACK information on the PUSCH on the data transmission performance on the PUSCH becomes large, LTE The simultaneous transmission scheme of the Rel-8 system is no longer applicable to the LTE-A system.

In order to maintain compatibility with the LTE system, the LTE-A system supports UCI transmission on PUCCH and/or PUSCH. In addition, in the LTE-A system, one UE also supports simultaneous transmission of PUCCH and PUSCH in the same uplink subframe.

In order to support the simultaneous transmission of ACK/NACK and SRS in PUCCH, the LTE-A system may also be defined based on

A shortened PUCCH format of DFT-S-OFDM (discrete Fourier transform-spread-orthogonal frequency division multiplexing).

When the UE configures the PUCCH and the PUSCH to transmit simultaneously in one uplink subframe, different types of UCI information can be simultaneously transmitted in the PUCCH and the PUSCH, thereby avoiding collisions between different types of UCI information and between UCI information and SRS information. Abandon certain UCI information or SRS transmission problems, improve system scheduling accuracy and ensure transmission reliability. However, when the UE configures PUCCH and PUSCH transmission simultaneously, how different types of UCI information are in the PUCCH and

There is no clear solution for simultaneous transmission on PUSCH. Summary of the invention

An embodiment of the present invention provides an uplink control information UCI transmission and reception method and device, which are suitable for application.

The LTE-A system and the LTE system compatible support UCI scheme for simultaneous transmission on PUCCH and PUSCH.

The present invention provides an uplink control information UCI transmission method, which includes the following steps:

The UE determines an uplink carrier where the physical uplink control channel PUCCH of the UCI is transmitted, and an uplink carrier where the physical uplink shared channel PUSCH of the UCI is transmitted;

The UE transmits a positive acknowledgement ACK/negative acknowledgement NACK information through the PUCCH on the uplink carrier where the PUCCH of the transmission UCI is located;

The carrier of the UE uplink transmission in the PUSCH UCI by PUSCH transmission channel state information CQI / PMI / RI ₀

The present invention also provides an uplink control information UCI receiving method, including:

The base station determines the uplink carrier where the UE transmits the physical uplink control channel PUCCH of the UCI, and the uplink carrier where the UE transmits the physical uplink shared channel PUSCH of the UCI;

The base station transmits an affirmative acknowledgement ACK/negative acknowledgement NACK information on the uplink carrier where the PUCCH of the UCI is transmitted by the UE;

The base station transmits an uplink carrier where the PUSCH of the UCI is located at the UE, and receives channel state information CQI/PMI/RL through the PUSCH.

The present invention provides a user terminal UE that transmits an uplink control UCI, including:

a carrier determining unit, configured to determine an uplink carrier where a physical uplink control channel PUCCH of the UCI is transmitted, and an uplink carrier where the physical uplink shared channel PUSCH of the UCI is transmitted;

An acknowledgment feedback unit, configured to positively acknowledge ACK/negative acknowledgment NACK information by using PUCCH transmission on an uplink carrier where the PUCCH of the transmission UCI is located;

a channel state information feedback unit, configured to transmit channel state information CQI/PMI/RL through the PUSCH on an uplink carrier where the PUSCH of the UCI is transmitted

The present invention also provides a base station that receives uplink control information UCI, including:

a carrier determining unit, configured to determine an uplink carrier where the physical uplink control channel PUCCH of the UCI is transmitted by the UE, and an uplink carrier where the UE transmits the physical uplink shared channel PUSCH of the UCI;

a response receiving unit, configured to transmit, on the uplink carrier where the PUCCH of the UCI is transmitted by the determined UE, by using the PUCCH Receiving positive acknowledgement ACK/negative acknowledgement NACK information;

The channel state information receiving unit is configured to receive the channel state information CQI/PMI/RL through the PUSCH, where the determined UE transmits the uplink carrier where the PUSCH of the UCI is located

The method and device for transmitting and receiving uplink control information UCI provided by the present invention have the following beneficial effects: In an LTE-A system that supports simultaneous transmission of PUCCH and PUSCH by the same UE in one uplink subframe, different types of UCI A scheme in which information is transmitted simultaneously on PUCCH and/or PUSCH. The scheme can select appropriate UCI information to be transmitted on an appropriate channel according to the specific configuration and scheduling of the UE, ensuring transmission reliability, and avoiding as many uplink types as possible due to multiple types of UCI and/or SRS. The feedback information discarding problem during collision improves the accuracy of scheduling. DRAWINGS

1 is a schematic diagram of mapping physical resources of an uplink control UCI on a PUSCH in the prior art;

2 is a schematic diagram of a single spectrum corresponding to a single carrier used in communication;

FIG. 3 is a schematic diagram of spectrum aggregation corresponding to aggregation of multiple carriers in an LTE-A system;

4 is a flowchart of a UCI transmission method provided in accordance with an embodiment of the present invention;

5 is a transmission structure diagram corresponding to Shortened PUCCH format 1/1 a/lb in a conventional CP specified in an LTE Rel-8 system;

6 is a transmission structure diagram corresponding to Shortened PUCCH format 1/la/lb in an extended CP specified in the LTE Rel-8 system;

7 is a transmission structure diagram of a Shortened PUCCH format in a conventional CP based on DFT-S-OFDM; FIG. 8 is a Shortened PUCCH format in an extended CP based on DFT-S-OFDM;

FIG. 9 is a transmission structure diagram of Normal PUCCH format 1/la/lb corresponding to a conventional CP specified in the LTE Rel-8 system;

11 is a transmission structure diagram of a Normal PUCCH format in a conventional CP based on DFT-S-OFDM; FIG. 12 is a Normal PUCCH format in an extended CP based on DFT-S-OFDM;

FIG. 13 is a flowchart of a method for receiving a UCI according to an embodiment of the present invention; FIG.

FIG. 14 is a structural diagram of a UE transmitting a UCI according to an embodiment of the present invention; FIG.

FIG. 15 is a structural diagram of a base station receiving UCI in accordance with an embodiment of the present invention. detailed description

The user terminal UE and the method for transmitting the UCI provided by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

In the LTE-A system, the UE supports simultaneous transmission of UCI on PUCCH and PUSCH in one uplink subframe, but no clear scheme is given for how to transmit simultaneously. The present invention provides a scheme in which UCIs are simultaneously transmitted on PUCCH and PUSCH. As shown in FIG. 4, the UCI transmission method provided by the present invention includes the following steps:

Step S401: The UE determines an uplink carrier where the PUCCH of the UCI is transmitted, and an uplink carrier where the PUSCH of the UCI is transmitted.

In the LTE-A system, the UE can perform signaling scheduling and service transmission on multiple carriers that are simultaneously aggregated or activated. From the perspective of resource allocation, the current standard discussion has restricted the configuration of some uplink resources to an uplink carrier, and defines the phase of the PCC (Primary Component Carrier), which is simultaneously aggregated or activated by the UE. Among the multiple component carriers, the component carrier other than the primary carrier is the SCC (Secondary Component Carrier).

Step S402: The UE transmits the ACK/NACK information through the PUCCH on the uplink carrier where the PUCCH of the UCI is transmitted.

Since the ACK/NACK information is multiplexed with the data on the PUSCH, the uplink data needs to be punctured according to the method of FIG. 1, and thus the data transmission resource is occupied. In addition, the ACK/NACK information has higher requirements on transmission performance, and the PUCCH has better transmission performance for ACK/NACK information than PUSCH. In the current uplink subframe, when the ACK/NACK information in the UCI needs to be fed back, the uplink carrier where the PUCCH of the UCI is transmitted is used, and the ACK/NACK information is transmitted by using the PUCCH to avoid occupying too much data transmission resources and guaranteeing the ACK. /NACK information transmission performance.

Step S403: The UE transmits the channel state information through the PUSCH on the uplink carrier where the PUSCH of the UCI is transmitted.

The channel state information includes a CQI (Channel Shield Indication), a PMI (Precoding Matrix Index), and an RI (Rank Indication), where the CQI and PMI information can be reported simultaneously according to the mode configured by the system, or only the CQI information can be reported; Whether to report according to different transmission modes, so in the current uplink subframe, the feedback may be one or more of these three parameters. The channel state information in this embodiment includes any of CQI, PMI, and RI. The channel state information is represented by CQI/PMI/RI.

In the above method of the present invention, the ACK/NACK information is preferentially transmitted on the PUCCH to reduce the occupation of the data transmission resource and ensure the reliability of the ACK/NACK transmission. For CQI/PMI/RI reporting, whether cyclic or acyclic CQI/PMI/RI reporting, CQI/PMI/RI is preferentially transmitted on the PUSCH to avoid multiple Discarding problems in simultaneous transmission of UCI and/or SRS on PUCCH.

Preferably, the method further includes a step S404, if the current uplink subframe is an uplink subframe used for transmitting the scheduling request SR defined in the system, and the SR is required to be sent in the current uplink subframe (that is, the SR is positive), the UE is transmitting. The uplink carrier where the PUSCH of the UCI is located transmits the SR in the form of a MAC PDU; or the UE transmits the SR and ACK/NACK information simultaneously on the uplink carrier where the PUCCH of the UCI is transmitted; or, in the current uplink subframe, When the SR (that is, the SR is positive), the UE transmits the SR in the form of a MAC PDU by transmitting the uplink carrier where the PUSCH of the UCI is located, and the UE transmits the SR and ACK/NACK information while transmitting the uplink carrier where the PUCCH of the UCI is located.

Specifically, in step S404, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH of the selected UCI selected in the current subframe is the PUSCH carrying the uplink data transmission, when the UE is When the SR is to be sent in the current uplink subframe (that is, the SR is positive), the UE transmits the SR in the form of a MAC PDU on the uplink carrier where the PUSCH of the UCI is transmitted.

Specifically, in step S404, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH transmitting the UCI in the current subframe is a PUSCH without uplink data transmission or no available in the current subframe Transmitting the PUSCH of the UCI, the UE transmits the SR and ACK/NACK information simultaneously on the uplink carrier where the PUCCH of the UCI is transmitted, and the simultaneous transmission method of the SR and the ACK/NACK information on the PUCCH is as follows: When the ACK/NACK information is used Based on the PUCCH format transmission scheme of DFT-S-OFDM, the 1-bit SR and the ACK/NACK information are jointly encoded and transmitted (that is, whether the SR is positive or negative, occupying 1 bit transmission, generally located in the last 1 bit of the transmission sequence); When the ACK/NACK information is used in the PUCCH format la/lb or PUCCH format lb with channel selection transmission scheme on the PUCCH, if the UE has a scheduling request in the current subframe (ie, the SR is positive), the ACK/NACK information is in the system. The uplink channel resource pre-configured by the high layer signaling is transmitted by using an ACK/NACK transmission scheme, if the UE does not have a scheduling request in the current subframe ( SR is negative), then the ACK / NACK information preclude the ACK / NACK transmission scheme in transmitting ACK / NACK channel resource.

Specifically, in step S404, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH transmitting the UCI in the current subframe is the PUSCH carrying the uplink data transmission, and the ACK/NACK is used In the case of the PUCCH format transmission scheme based on the DFT-S-OFDM, when the UE needs to transmit the SR in the current uplink subframe (that is, the SR is positive), the UE transmits the uplink carrier where the PUSCH of the UCI is located, and transmits the MAC carrier as a MAC PDU. SR, and the UE transmits the SR and ACK/NACK information while transmitting the uplink carrier where the PUCCH of the UCI is located (the specific simultaneous transmission scheme is the same as the previous one, and is not described again).

The invention fixes the SR to the PUSCH for transmission, avoiding other types of UCI letters when transmitting on the PUCCH The problem of collision and discarding the corresponding feedback information improves the scheduling accuracy.

The uplink carrier where the PUCCH of the UCI is transmitted is specifically the uplink primary carrier PCC of the multiple uplink carriers that are aggregated or activated by the UE; the uplink carrier where the PUSCH of the UCI is transmitted is the uplink of multiple uplink carriers that are aggregated or activated by the UE. The primary carrier PCC or an uplink secondary carrier SCC; for example, the uplink carrier where the PUSCH of the UCI is transmitted is the carrier with the smallest carrier number among the plurality of uplink carriers aggregated or activated by the UE.

A periodic SRS may also exist in the uplink subframe of the UE, and how to transmit the SRS in combination with the SRS. In step S402 of the foregoing method, the ACK/NACK information is specifically transmitted in the following manner:

1) If the current uplink subframe is an uplink subframe for transmitting SRS defined in the system (equivalent to if the current uplink subframe is an uplink subframe with SRS transmission, that is, a system SRS subframe), and the UE supports SRS Simultaneous transmission with ACK/NACK information; then, the UE transmits the ACK/NACK information by using the short-enclosed PUCCH transmission format (format) in which the SRS transmission location is reserved, in the uplink carrier where the PUCCH of the UCI is transmitted, and the SRS is based on the pre- Defines the configuration to send the last symbol in the current upstream subframe. Therefore, simultaneous transmission of ACK/NACK information and SRS on the PUCCH is implemented;

Or, based on the related description in the subsequent description, in the present embodiment, when determining whether the current uplink subframe has a sounding reference signal SRS transmission, it may only confirm the uplink carrier where the PUCCH of the UCI is transmitted, and the foregoing description may be "The uplink subframe for transmitting the SRS (that is, the uplink subframe with the SRS transmission)" is specifically described as "the uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the UCI is transmitted", and it can be inferred that the following description is also the same. Established:

If the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the UCI is defined in the system, and the UE supports simultaneous transmission of the SRS and the ACK/NACK information, the UE is in the transmission. The uplink carrier where the PUCCH of the UCI is located transmits the ACK/NACK information in a truncated PUCCH transmission format in which the SRS transmission location is reserved, and the SRS is transmitted in the last symbol of the current uplink subframe according to a predefined configuration.

The truncated PUCCH transmission format is any one of the following transmission formats:

Shortened PUCCH format 1 under the conventional CP specified in the LTE Rel-8 system;

Shortened PUCCH format la under conventional CP as specified in the LTE Rel-8 system;

Shortened PUCCH format lb under the conventional CP specified in the LTE Rel-8 system;

Shortened PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Shortened PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Shortened PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

Shortened under conventional CP based on Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) based on Discrete Fourier Transform Extension PUCCH format;

Orthogonal Frequency Division Multiplexing Based on Discrete Fourier Transform Extension DFT-S-OFDM Extended Shortened PUCCH format under CP.

On the other hand, if the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted in the current uplink subframe, the data transmission on the PUSCH performs rate matching according to the predefined configuration of the SRS.

Specifically, when the data transmission on the PUSCH is rate matched according to the predefined configuration of the SRS, the predefined configuration of the SRS may refer to the SRS configuration on the local carrier (ie, the uplink carrier where the PUSCH is located), or may also refer to other carriers ( For example, the SRS configuration on the primary carrier includes the subframe for transmitting the SRS, the bandwidth for transmitting the SRS, and the period for transmitting the SRS, namely:

Method a: The pre-defined configuration of the SRS includes the SRS configuration on the uplink carrier configured/activated by all the UEs, that is, the current uplink subframe is used for transmitting the SRS corresponding to any uplink carrier in the configured/activated uplink carrier defined in the system. In the uplink subframe, the uplink data transmission on the PUSCH is rate matched in these SRS subframes based on the assumption that the last SC-FDMA symbol is used for SRS transmission, that is, the PUSCH will be last in the SRS subframe of all carriers. One symbol reserved for transmitting the SRS, and the encoding of the uplink data and UCI information on the PUSCH is based on the symbols other than the last SC-FDMA symbol to calculate the number of coded bits;

Method b: The pre-defined configuration of the SRS refers to the uplink carrier where the PUSCH is located, that is, when the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUSCH for transmitting the UCI defined in the system is located, on the PUSCH The data transmission is based on the specific configuration of the SRS on the carrier. The specificity is as follows: if the UE has an SRS transmission in the current subframe where the PUSCH is located, or the current uplink subframe on the uplink carrier where the PUSCH is located. The configured system SRS subframe and the bandwidth available for transmitting the SRS configured on the uplink carrier where the PUSCH is located overlaps with the PUSCH bandwidth, and the data transmission of the PUSCH is based on the assumption that the last SC-FDMA symbol is used for SRS transmission. Matching; otherwise, the PUSCH only transmits data (ie, the uplink data can be rate matched according to all SC-FDMA symbols used for transmitting data in the current subframe, and the last SV-FDMA symbol is not reserved for SRS transmission).

2) If the current uplink subframe is an uplink subframe for transmitting SRS defined in the system (equivalent to if the current uplink subframe is an uplink subframe with SRS transmission, that is, a system SRS subframe), and the UE does not support SRS and ACK/NACK information are transmitted simultaneously;

The UE transmits the ACK/NACK information in the normal (Normal) PUCCH transmission format of the unreserved SRS transmission location, and the uplink carrier where the UCI PUCCH is transmitted does not transmit the SRS in the current uplink subframe. , that is, the transmission of the SRS on the PUCCH is discarded;

Or, based on the related description in the subsequent description, "in this embodiment, it is determined whether the current uplink subframe exists or not. When the SRS signal is transmitted, the uplink carrier where the UCI is transmitted may be acknowledged only. The uplink subframe used for transmitting the SRS (that is, the uplink subframe with the SRS transmission) in the above description may be specifically described as "Uplink subframe for transmitting SRS corresponding to the uplink carrier where the PUCCH of the UCI is transmitted", it can be inferred that the following description is also true:

If the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the UCI is defined in the system, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, the PUCCH where the UE transmits the UCI is located. The uplink carrier transmits the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location, and the uplink carrier where the PUCCH of the UCI transmission is not transmitted in the current uplink subframe.

The above conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the conventional CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the conventional CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the conventional CP specified in the LTE Rel-8 system;

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format under conventional CP based on Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) based on Discrete Fourier Transform Extension;

Orthogonal Frequency Division Multiplexing based on Discrete Fourier Transform Extension DFT-S-OFDM Extended Normal PUCCH format under CP.

Further, in an uplink subframe in which the PUCCH of the UCI is transmitted, the UE does not transmit the SRS (ie, if there is an SRS in the subframe, the drop SRS) on the uplink carrier except the uplink carrier where the PUCCH of the UCI is transmitted.

If the uplink carrier in the current uplink subframe has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted, the data transmission on the PUSCH performs rate matching according to the predefined configuration of the SRS.

Method a: The pre-defined configuration of the SRS includes the SRS configuration on the uplink carrier configured/activated by all the UEs, that is, the current uplink subframe is used for transmitting the SRS corresponding to any uplink carrier in the configured/activated uplink carrier defined in the system. In the uplink subframe, the uplink data transmission on the PUSCH is rate matched in these SRS subframes based on the assumption that the last SC-FDMA symbol is used for SRS transmission, that is, the PUSCH will be the most in the SRS subframe of all carriers. The latter symbol is reserved for transmitting SRS, and the encoding of the uplink data and UCI information on the PUSCH is based on the last one.

The number of coded bits is calculated by symbols other than the SC-FDMA symbol;

Since the UE supports UCI transmission on PUCCH and PUSCH simultaneously. Therefore, when the transmission of the uplink carrier where the PUCCH of the UCI is transmitted is discarded, if there is an SRS transmission on the uplink carrier where the PUSCH transmitting the UCI is located in the current uplink subframe, the PUSCH may be pre-configured on the PUSCH of the carrier. The last symbol is transmitted. Of course, it is also possible not to transmit SRS (ie, drop SRS) on the PUSCH to prevent the SRS and PUCCH from being transmitted simultaneously in the same subframe.

Preferably, since the PUCCH of the UCI is transmitted in the normal format, that is, if there is an SRS transmission in the subframe (including the carrier where the PUCCH is located or the SRS transmission on the other carrier), the SRS is discarded and not transmitted, the UE should The method b is preferentially used, that is, the rate matching of the data transmission on the PUSCH transmitting the UCI is performed only based on the SRS configuration on the uplink carrier where the PUSCH is located (although the uplink carrier in which the UE transmits the USCH in the subframe is also in the subframe) The SRS is not transmitted, but other UEs on the carrier may have SRS transmissions in the subframe. To avoid the interference of the SRS of other UEs on the data transmission on the PUSCH, the PUSCH needs to perform rate matching according to the SRS configuration of the carrier.

3) If the current uplink subframe is not an uplink subframe defined in the system for transmitting the SRS (equivalent to if the current uplink subframe is an uplink subframe without SRS transmission);

The UE transmits the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier where the PUCCH of the UCI is transmitted.

The pre-defined configuration information of the SRS in the foregoing process may include the SRS period and the transmission bandwidth. Specifically, the SRS configuration period may be used to determine whether the current uplink subframe is an uplink subframe configured with SRS transmission.

In the embodiment of the present invention, when determining whether the current uplink subframe is an uplink subframe without SRS transmission, whether the UE supports

SRS and ACK/NACK information are transmitted simultaneously, and conventional PUCCH transmissions with unreserved SRS transmission locations are used. The format transmits ACK/NACK information.

In the current UC system UCI transmission mechanism, when the UE supports SRS and ACK/NACK information transmission simultaneously, if the current uplink subframe is a subframe with SRS transmission, it is considered that other UEs may have SRS in the PUCCH transmission bandwidth position of the current UE. Transmission, therefore, regardless of whether the current UE has an SRS transmission in the uplink subframe, the UE transmits the ACK/NACK information using the truncated PUCCH transmission format reserved for the SRS transmission location.

In addition, the configuration of the SRS in the system may be a cell level (system level) or a carrier level, that is, the SRS configurations of each uplink carrier may be the same or different, and may be configured uniformly or independently. If the configuration of the SRS is at the carrier level, different uplink carriers may have different SRS transmission periods and bandwidths. In this embodiment, the SRS discarding problem occurs when only different types of UCI and SRS information are transmitted on the PUCCH. When determining whether there is an SRS transmission in the current uplink subframe, it may only confirm the uplink carrier where the PUCCH transmitting the UCI is located.

A preferred embodiment of the above UCI transmission method in accordance with the present invention is given below.

When the UE supports the transmission of the UCI in the uplink subframe by using the PUCCH and the PUSCH in the LTE-A, the UE first determines the uplink carrier A where the PUCCH of the UCI is transmitted and the uplink carrier B where the PUSCH of the UCI is transmitted.

The uplink carrier A is the uplink primary carrier PCC of the multiple uplink carriers that are aggregated or activated by the UE, and the uplink carrier B may be the uplink primary carrier PCC of the multiple uplink carriers that are aggregated or activated by the UE, or may be aggregated or activated by the UE. One of the plurality of uplink carriers, the uplink secondary carrier SCC; for example, the carrier having the smallest carrier number among the plurality of uplink carriers aggregated or activated by the UE.

After determining the uplink carrier A and the uplink carrier B, the UE feeds back the UCI according to the following process:

1) If there is an SRS transmission in the uplink carrier A where the PUCCH of the UCI is transmitted in the current uplink subframe; in this embodiment, the uplink subframe with the SRS transmission is referred to as a system SRS subframe, and the uplink subframe without the SRS transmission It is called a non-system SRS subframe. If the current uplink subframe is a system SRS subframe, the last symbol of the subframe is used to send the SRS. The configuration of the SRS may be cell-specific or carrier-level (CC-specific). If it is cell-level, in the system SRS subframe, each UE is configured or activated on the uplink carrier. There is SRS transmission; if it is carrier level, there may be SRS transmission on one or more uplink carriers in the system SRS subframe.

1 If the UE has ACK/NACK information feedback in the current uplink subframe without CQI/PMI/RI feedback; when the high-level parameter ackNackSRS-SimultaneousTransimission is True, the SRS and ACK/NACK information are simultaneously transmitted, and the UE is transmitting UCI. The uplink carrier A where the PUCCH is located is fed back ACK/NACK information by the truncated PUCCH transmission format reserved with the SRS transmission position, and the SRS is transmitted according to the predefined configuration in the last symbol of the uplink carrier A; the uplink of the PUSCH transmitting the UCI is located. PUSCH data on carrier B The transmission performs rate matching according to the predefined configuration of the SRS transmission on the uplink carrier B, that is, if the uplink carrier B exists

If the current uplink subframe on the uplink carrier B is a system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, the data transmission of the PUSCH on the carrier is rate matched according to the transmission bandwidth of the SRS; otherwise, The PUSCH on this carrier only transmits data.

In the foregoing embodiment, the truncated PUCCH transmission format may be any of the following transmission formats:

The specific transmission format of Shortened PUCCH format 1/1 a/lb under the conventional CP specified in the LTE Rel-8 system: 3⁄4 port shown in Figure 5;

The specific transmission format of Shortened PUCCH format 1/la/lb under the extended CP specified in the LTE Rel-8 system is shown in FIG. 6;

The shortened PUCCH format of a conventional CP based on DFT-S-OFDM, the specific transmission format is shown in Figure 7.

Based on the DFT-S-OFDM extended Shortened PUCCH format under CP, the specific transmission format is shown in Figure 8.

The PUCCH format 1/la/lb in the foregoing transmission format is an existing defined transmission format, and specifies the number of symbols included in the two slots of the current uplink subframe and the object corresponding to each symbol position, which is not detailed here. The DFT-S-OFDM-based transmission format in the above transmission format may not be limited to the transmission structure shown in FIG. 7 and FIG. 8, the number of any different time slots, the number of different symbols per time slot, and each Changes in the number and position of different reference symbols of a time slot can be used as a transmission format based on DFT-S-OFDM.

When the high-level parameter ackNackSRS-SimultaneousTransimission is False, the SRS is not supported.

The ACK/NACK information is transmitted at the same time. In this embodiment, the following two processing methods are available:

Method 1: The UE transmits the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier A where the PUCCH of the UCI is transmitted, and the uplink carrier A does not transmit the SRS in the current uplink subframe, that is, the carrier is discarded. SRS transmission in the current uplink subframe. The data transmission on the PUSCH on the uplink carrier B where the PUSCH transmitting the UCI is located is rate matched according to the predefined configuration of the SRS on the uplink carrier B, that is, if the uplink carrier B has SRS transmission, or the current uplink subframe on the uplink carrier B System SRS subframe and available for transmission The bandwidth of the SRS overlaps with the PUSCH bandwidth, and the data transmission of the PUSCH is rate matched according to the transmission bandwidth of the SRS, where the SRS on the uplink carrier B may not be transmitted (the SRS on the different carriers and the PUCCH are not supported in the same SC-FDMA symbol transmission) , therefore drop SRS ); otherwise, PUSCH only transmits data. Or, if there is an SRS transmission in the uplink carrier B, the SRS is not sent (the SRS on the different carriers is not supported in the same SC-FDMA symbol transmission as the PUCCH, so the drop SRS), the PUSCH may be based only on the current uplink subframe on the uplink carrier B. Rate matching is performed for the system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth (mainly to avoid the SRS of other UEs on the uplink carrier B from transmitting the interference of the PUSCH data of the UE).

The conventional PUCCH transmission format in this embodiment is any one of the following transmission formats:

The specific transmission format of Normal PUCCH format 1/1 a/lb under the conventional CP specified in the LTE Rel-8 system is shown in FIG. 9.

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The specific transmission format of Normal PUCCH format 1/la/lb under the extended CP specified in the LTE Rel-8 system is shown in FIG. 10;

The normal PUCCH format of a conventional CP based on DFT-S-OFDM, the specific transmission format is shown in FIG. 11;

The normal PUCCH format under the extended CP based on DFT-S-OFDM, the specific transmission format is shown in Figure 12.

The PUCCH format 1/la/lb in the foregoing transport format is an existing defined transport format, and specifies the number of two slot symbols in the current uplink subframe and the corresponding transmission target of each symbol position, which will not be described in detail herein; The DFT-S-OFDM-based transmission format in the above transmission format may not be limited to the transmission structure shown in FIG. 11 and FIG. 12, the number of any different time slots, the number of different symbols per time slot, and each time slot. The variation of the number and position of different reference symbols can be used as the transmission format based on DFT-S-OFDM.

In the method 2, the UE transmits the ACK/NACK information through the PUSCH on the uplink carrier B where the PUSCH of the UCI is transmitted, and the data transmission on the PUSCH on the carrier performs rate matching according to the predefined configuration of the SRS, that is, if the uplink carrier B has SRS. The transmission, or the current uplink subframe on the uplink carrier B is a system SRS subframe, and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, and the data transmission of the PUSCH is performed according to the transmission bandwidth of the SRS. Rate matching; otherwise, the PUSCH only transmits data; the SRS is transmitted according to a predefined configuration on the last symbol on the uplink carrier A where the PUCCH of the UCI is transmitted, that is, there is no PUCCH transmission on the carrier, and the SRS transmission is not discarded.

2 If the UE has CQI/PMI/RI feedback in the current uplink subframe without ACK/NACK information feedback; the UE transmits the CQI/PMI/RI and SRS with the PUSCH while transmitting the uplink carrier B where the PUSCH of the UCI is located. On the uplink carrier B, the data of the PUSCH and the CQI/PMI/RI information are rate matched according to the predefined configuration of the SRS transmission, that is, if there is an SRS transmission on the uplink carrier B where the PUSCH transmitting the UCI is located, or the current uplink subcarrier on the uplink carrier B. The frame is a system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, and the data on the PUSCH is rate matched according to the size of the CQI/PMI/RI information and the transmission bandwidth of the SRS; otherwise, the data on the PUSCH is based on the CQI. The rate of /PMI/RI information is rate matched.

3 If the UE has both CQI/PMI/RI feedback and ACK/NACK information feedback in the current uplink subframe; when the high-level parameter ackNackSRS-SimultaneousTransimission is True, the SRS and ACK/NACK information are simultaneously transmitted, and the UE transmits the PUCCH of the UCI. The uplink carrier A is located, and the ACK/NACK information is fed back by using the truncated PUCCH transmission format in which the SRS transmission position is reserved, and the SRS is transmitted in the last symbol of the uplink carrier A according to the predefined configuration. The UE transmits the CQI/PMI/RI on the uplink carrier B where the PUSCH of the UCI is transmitted, and on the uplink carrier B, the data on the PUSCH and the CQI/PMI/RI information are rate matched according to the predefined configured SRS transmission. That is, if the uplink carrier B has an SRS transmission, or the current uplink subframe on the uplink carrier B is a system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, the PUSCH data is based on the size of the CQI/PMI/RI information. The rate is matched with the transmission bandwidth of the SRS; otherwise, the data on the PUSCH is rate matched according to the size of the CQI/PMI/RI information.

The truncated PUCCH transmission format in this embodiment can be used under the conventional CP specified in the LTE Rel-8 system.

Shortened PUCCH format 1/la/lb, or Shortened PUCCH format 1/la/lb under extended CP, or conventional CP/extension of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension Shortened PUCCH format under CP.

When the high-level parameter ackNackSRS-SimultaneousTransimission is False, the SRS and ACK/NACK information are not supported for simultaneous transmission. In this embodiment, the following two processing methods are available:

Method 1: The UE transmits the ACK/NACK information in the normal PUCCH transmission format in which the PUCCH of the UCI is transmitted, and transmits the ACK/NACK information in the normal PUCCH transmission format in which the UCI PUCCH is transmitted. Sending SRS information, that is, discarding the SRS transmission of the carrier in the current uplink subframe. The UE transmits the CQI/PMI/RI on the uplink carrier B where the PUSCH of the UCI is transmitted, and on the uplink carrier B, the data on the PUSCH and the CQI/PMI/RI information are rate matched according to the predefined configuration of the SRS, that is, If the uplink carrier B has an SRS transmission, or the current uplink subframe on the uplink carrier B is a system SRS subframe and can be used to transmit the SRS band. The bandwidth of the PUSCH overlaps with the PUSCH bandwidth, and the data of the PUSCH is matched according to the size of the CQI/PMI/RI information and the transmission bandwidth of the SRS. The SRS on the uplink carrier B may not be transmitted (the SRS on different carriers is not supported and the PUCCH is not supported). One SC-FDMA symbol transmission, therefore drop SRS); otherwise, the data on the PUSCH is rate matched according to the size of the CQI/PMI/RI information. Or, if there is an SRS transmission in the uplink carrier B, the SRS is not transmitted (the SRS on the different carriers is not supported in the same SC-FDMA symbol transmission as the PUCCH, and thus the drop SRS), the PUSCH may be based only on the current uplink subframe on the uplink carrier B. Rate matching is performed for the system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth (mainly to avoid the SRS of other UEs on the uplink carrier B from transmitting the interference of the PUSCH data of the UE).

The conventional PUCCH transmission format in this embodiment may use the Normal PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the Normal PUCCH under the extended CP specified in the LTE Rel-8 system. Format 1/la/lb; or the Normal PUCCH format under the conventional CP/extended CP of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

Method 2: The UE transmits the ACK/NACK information and the CQI/PMI/RI on the uplink carrier B where the PUSCH of the UCI is transmitted, and on the uplink carrier B, the data on the PUSCH is based on the size of the CQI/PMI/RI information. The transmission bandwidth of the SRS is rate matched, that is, if the uplink carrier B has an SRS transmission, or the current uplink subframe on the uplink carrier B is a system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, the PUSCH data transmission The rate matching is performed according to the transmission bandwidth of the SRS; otherwise, the PUSCH only transmits data; the SRS is transmitted according to a predefined configuration on the last symbol A of the uplink carrier A where the PUCCH transmitting the UCI is located, that is, there is no PUCCH transmission on the carrier, and the SRS transmission is not discarded.

2) If there is no SRS transmission in the uplink carrier A where the PUCCH of the UCI is transmitted in the current uplink subframe;

1 If the UE has ACK/NACK information feedback in the current uplink subframe without feedback of CQI/PMI/RI; the UE transmits the uplink carrier A where the PUCCH of the UCI is located, and uses the conventional unreserved SRS transmission location.

The PUCCH transmission format transmits ACK/NACK information.

2 If the UE has CQI/PMI/RI feedback in the current uplink subframe and there is no ACK/NACK information feedback; the UE transmits the channel state information by using PUSCH on the uplink carrier B where the PUSCH of the UCI is transmitted.

CQI/PMI/RI, the data on the PUSCH is rate matched according to the size of the CQI/PMI/RI information.

3 If the UE has both CQI/PMI/RI feedback and ACK/NACK information feedback in the current uplink subframe; the UE transmits the uplink carrier A where the PUCCH of the UCI is located, and uses the conventional unreserved SRS transmission location.

The PUCCH transmission format transmits ACK/NACK information, and the uplink carrier B where the PUSCH of the UCI is transmitted uses the PUSCH transmission channel state information CQI/PMI/RI. On the uplink carrier B, the data on the PUSCH is based on the CQI/PMI/RI information. The size of the rate is matched. In particular, if the uplink carrier B has SRS transmission, or uplink carrier B If the current uplink subframe is a system SRS subframe and the bandwidth available for transmitting the SRS overlaps with the PUSCH bandwidth, then

The data transmission of the PUSCH is rate matched according to the transmission bandwidth of the SRS, wherein the SRS on the uplink carrier B may not be transmitted (the SRS on the different carriers is not supported in the same SC-FDMA symbol transmission as the PUCCH, and therefore the drop SRS); otherwise, the PUSCH only Transmitting data; or, if the uplink carrier B has an SRS transmission, the SRS is not transmitted (the SRS on the different carriers is not supported and the PUCCH is transmitted in the same SC-FDMA symbol, so the drop SRS), the PUSCH may be based only on the uplink carrier B. The uplink subframe is a system SRS subframe, and the bandwidth that can be used for transmitting the SRS overlaps with the PUSCH bandwidth, and the rate matching is performed (mainly to prevent the SRS of other UEs on the uplink carrier B from transmitting the interference of the PUSCH data of the UE) .

In the embodiment of the present invention, whether the current uplink subframe is a system SRS subframe or a non-system SRS subframe, if the UE needs to send a scheduling request SR in the current uplink subframe, the UE transmits the uplink carrier B where the PUSCH of the UCI is located, The SR is transmitted in the form of a Media Access Control Protocol data unit MAC PDU. In particular, if the PUSCH transmitting the UCI is a PUSCH that does not carry uplink data or a PUSCH that is not available for transmitting UCI in the current subframe, the SR cannot be transmitted in the form of a MAC PDU, and the UE needs to simultaneously transmit an ACK on the PUCCH transmitting the UCI. / NACK and the SR; Further, when the UCI transmission is carrying PUSCH PUSCH uplink data transmission and ACK / NACK based on 1 ^ preclude the use of ^1-butoxy) of 1-8-00 ;.? . In the case of the 11^1 transmission scheme, when the UE needs to transmit the SR in the current uplink subframe (that is, the SR is positive), the UE transmits the SR in the form of a MAC PDU by transmitting the uplink carrier where the PUSCH of the UCI is located, and The UE transmits the SR and ACK/NACK information while transmitting the uplink carrier where the PUCCH of the UCI is located. A method for receiving UCI is further provided in the embodiment of the present invention. As shown in FIG. 13, the method includes the following steps:

Step S131, the base station determines, by the UE, the uplink carrier where the PUCCH of the UCI is transmitted, and the uplink carrier where the UE transmits the PUSCH of the UCI;

Step S132: The base station transmits, by using the PUCCH, the ACK/NACK information, where the UE transmits the uplink carrier where the PUCCH of the UCI is located.

Step S133: The base station transmits the uplink carrier where the PUSCH of the UCI is located in the UE, and receives the CQI/PM vine through the PUSCH.

That is, the base station fixes the ACK/NACK information of the uplink carrier where the determined UE transmits the UCI PUCCH, and receives the CQI/PMI/RL on the uplink carrier where the determined UE transmits the UCI PUSCH.

Preferably, the method further includes: Step S134: If the current uplink subframe is an uplink subframe for the SR defined in the system, the base station transmits the uplink carrier where the PUSCH of the UCI is located, and the receiving UE transmits the signal in the form of a MAC PDU. Or, the base station receives the SR and ACK/NACK information that the UE transmits at the same time as the uplink carrier where the UE transmits the UCI PUCCH; or the base station transmits the uplink carrier where the PUSCH of the UCI is located, and the receiving UE is in the form of a MAC PDU. The transmitted SR, and the uplink carrier where the UE transmits the UCI PUCCH, receives SR and ACK/NACK information transmitted by the UE at the same time.

Specifically, in step S134, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH of the transport UCI selected in the current subframe is the PUSCH carrying the uplink data transmission, the base station is at the UE. The uplink carrier on which the PUSCH of the UCI is transmitted receives the SR transmitted by the UE in the form of a MAC PDU.

Specifically, in step S134, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH in which the UE transmits the UCI in the current subframe is a PUSCH without uplink data transmission or no available in the current subframe For transmitting the PUSCH of the UCI, the base station receives the SR and ACK/NACK information simultaneously transmitted by the UE at the uplink carrier where the UE transmits the UCI PUCCH, and simultaneously receives the SR and ACK/NACK information on the PUCCH: When ACK/NACK When the information is based on the PUCCH format transmission scheme based on DFT-S-OFDM, the 1-bit SR is jointly decoded with the ACK/NACK information (that is, whether the SR is positive or negative, it occupies 1 bit transmission, generally located in the last 1 bit of the transmission sequence. When the ACK/NACK information is used in the PUCCH format la/lb or PUCCH format lb with channel selection transmission scheme on the PUCCH, the base station determines whether the UE has a scheduling by detecting whether there is data transmission on the pre-configured SR channel resource of the high layer signaling. Request (positive SR), if not present, can further receive ACK/NACK transmission scheme on ACK/NACK channel resources The ACK/NACK information, or the base station can also perform data detection and reception on the SR and ACK/NACK channel resources at the same time.

Specifically, in step S134, in the uplink subframe for transmitting the scheduling request SR defined in the system, if the PUSCH in which the UE transmits the UCI in the current subframe is the PUSCH carrying the uplink data transmission, and the ACK/NACK is When the PUCCH format transmission scheme based on the DFT-S-OFDM is used, the base station receives the SR transmitted by the UE in the form of a MAC PDU when the UE transmits the uplink carrier where the PUSCH of the UCI is located (if it is a positive SR, the PDU can be received. Otherwise, there is no such PDU), and the base station transmits the SR and ACK/NACK information that the UE transmits at the same time on the uplink carrier where the UE transmits the UCI PUCCH (the specific simultaneous receiving scheme is the same as the previous one, and is not described again).

The uplink carrier where the PUCCH of the UCI transmitted by the UE determined by the base station in the embodiment is the uplink primary carrier PCC of the plurality of uplink carriers that are aggregated or activated by the UE; the uplink carrier where the UE transmits the USCH of the UCI, which is determined by the base station, is aggregated by the UE. Or an uplink primary carrier PCC or an uplink secondary carrier SCC of the plurality of uplink carriers that are activated; for example, a carrier having the smallest carrier number among the plurality of uplink carriers aggregated or activated by the UE.

In this embodiment, the channel state information includes any of CQI, PMI, and RI, and the channel state information is represented by CQI/PMI/RI.

The base station transmits the ACK/NACK information through the PUCCH in the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the base station has different conditions, including:

1) The base station determines that the current uplink subframe is an uplink subframe defined in the system for transmitting the SRS transmission, and the UE supports When the SRS and the ACK/NACK information are simultaneously transmitted, the UE transmits the uplink carrier where the PUCCH of the UCI is located, and receives the ACK/NACK information transmitted by the UE using the truncated PUCCH transmission format reserved for the SRS transmission position, and according to the SRS. The pre-defined configuration acquires the SRS in the last symbol of the current uplink subframe; or the base station determines that the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the transmission UCI defined in the system is located, and the UE supports The SRS is transmitted simultaneously with the ACK/NACK information, and the ACK/NACK information transmitted by the UE in the truncated PUCCH transmission format in which the SRS transmission location is reserved is received in the uplink carrier where the UE transmits the UCI PUCCH, and is pre-defined according to the SRS. Configure the last symbol of the current uplink subframe to acquire the SRS.

Since the SRS is periodic, the base station determines that the current uplink subframe is an uplink subframe configured with SRS transmission, and may specifically pass information such as a period of the SRS.

When the UE has data transmission on the uplink carrier where the PUSCH of the transmission UCI is located, the base station receives the data on the PUSCH according to the predefined configuration of the SRS.

Specifically, when the base station receives the data on the PUSCH according to the predefined configuration of the SRS, the predefined configuration of the SRS may refer to the SRS configuration on the local carrier (ie, the uplink carrier where the PUSCH is located), or may also refer to other carriers (such as The SRS configuration on the primary carrier, the configuration of the SRS includes the subframe for transmitting the SRS, the bandwidth for transmitting the SRS, and the period for transmitting the SRS, namely:

Method a: The pre-defined configuration of the SRS includes the SRS configuration on the uplink carrier configured/activated by all the UEs, that is, the current uplink subframe is used for transmitting the SRS corresponding to any uplink carrier in the configured/activated uplink carrier defined in the system. In the uplink subframe, the base station determines that the uplink data transmission on the PUSCH is rate matched in the SRS subframes based on the assumption that the last SC-FDMA symbol is used for SRS transmission, that is, the PUSCH is in the SRS subframe of all carriers. The last symbol is reserved for transmitting the SRS, and the decoding of the uplink data and the UCI information on the PUSCH is based on the symbols other than the last SC-FDMA symbol to calculate the number of decoding bits;

Method b: The pre-defined configuration of the SRS refers to the uplink carrier where the PUSCH is located, that is, when the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUSCH for transmitting the UCI defined in the system is located, on the PUSCH The data transmission is based on the specific configuration of the SRS on the carrier, and the method is: if the UE has an SRS transmission in the current subframe where the PUSCH is located, or the current uplink subframe on the uplink carrier where the PUSCH is located. The system SRS subframe of the carrier configuration and the bandwidth of the SRS that can be used for transmitting the SRS configured on the uplink carrier of the PUSCH overlap with the PUSCH bandwidth, and the data transmission of the base station according to the PUSCH is based on the last one. The SC-FDMA symbol is used for SRS transmission to perform rate de-matching; otherwise, it is determined that the PUSCH only transmits data.

(That is, the uplink data can be de-rate matched according to all SC-FDMA symbols used for transmitting data in the current subframe, and the last SV-FDMA symbol is not reserved for SRS transmission).

2) The base station determines that the current uplink subframe is an uplink subframe for transmitting the SRS transmission defined in the system, and the UE does not support the SRS and the ACK/NACK information, and the UE transmits the uplink carrier where the PUCCH of the UCI is located, and receives the UE. The ACK/NACK information transmitted by the conventional PUCCH transmission format of the unreserved SRS transmission location is used; or the base station determines that the current uplink subframe is the uplink for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the transmission UCI defined in the system is located When the UE does not support the simultaneous transmission of the SRS and the ACK/NACK information, the RRC/NACK information transmitted by the UE in the conventional PUCCH transmission format of the unreserved SRS transmission location is received on the uplink carrier where the UE transmits the UCI PUCCH. The uplink carrier where the PUCCH of the UCI is transmitted does not transmit the SRS in the current uplink subframe.

Further, the base station does not receive the SRS on the uplink carrier except the uplink carrier where the PUCCH of the UCI is transmitted. The above-mentioned conventional PUCCH transmission format may use the Normal PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the Normal PUCCH format 1/ under the extended CP specified in the LTE Rel-8 system. La/lb; or the Normal PUCCH format under the conventional CP/extended CP of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

When the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted, the base station receives the data on the PUSCH according to the predefined configuration of the SRS.

Method b: The pre-defined configuration of the SRS refers to the uplink carrier where the PUSCH is located, that is, when the current uplink subframe is an uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUSCH for transmitting the UCI defined in the system is located, on the PUSCH The data transmission is based on the specific configuration of the SRS on the carrier to perform rate-matching, specifically: if the UE is in the PUSCH The uplink carrier where the uplink carrier is located has the SRS transmission in the current subframe, or the current uplink subframe on the uplink carrier where the PUSCH is located is the system SRS subframe configured for the carrier, and the bandwidth configured on the uplink carrier where the PUSCH is located can be used for transmitting the SRS. If there is overlap with the PUSCH bandwidth, the base station performs de-rate matching according to the assumption that the last SC-FDMA symbol is used for SRS transmission according to the data transmission of the PUSCH; otherwise, it is determined that the PUSCH only transmits data (that is, the uplink data may be according to the current subframe. All SC-FDMA symbols used to transmit data are de-rate matched, and there is no need to reserve the last SV-FDMA symbol for SRS transmission). 3) The base station determines that the current uplink subframe is not the uplink subframe of the transmission SRS defined in the system, and the uplink carrier where the UE transmits the UCI PUCCH, and the receiving UE transmits the ACK in the conventional PUCCH transmission format of the unreserved SRS transmission location. /NACK information.

The above-mentioned conventional PUCCH transmission format may use the Normal PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the Normal PUCCH format 1/ under the extended CP specified in the LTE Rel-8 system. La/lb; or the Normal PUCCH format under the conventional CP/extended CP of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

According to an embodiment of the present invention, a user terminal UE that transmits an uplink control UCI is further provided. As shown in FIG. 14, the method includes: a carrier determining unit 141, configured to determine an uplink carrier where a PUCCH of a UCI is transmitted, and transmit an UCI. An uplink carrier in which the physical uplink shared channel PUSCH is located; an acknowledgment feedback unit 142, configured to transmit ACK/NACK information through the PUCCH in the uplink carrier where the PUCCH of the UCI is transmitted; and a channel state information feedback unit 143 configured to transmit the PUSCH of the UCI The uplink carrier transmits channel state information through the PUSCH. The channel state information transmitted by the channel state information feedback unit 143 includes any one or more of the following three parameters: CQI, PMI, and RI.

Preferably, the UE further includes: an SR feedback unit 144, if the current uplink subframe is defined in the system for transmission

The uplink subframe of the SR is used to transmit the SR in the form of a MAC PDU when the SR is transmitted in the current uplink subframe, and the uplink carrier where the PUSCH of the UCI is transmitted, or the uplink of the PUCCH in which the UCI is transmitted. The carrier transmits the SR and the ACK/NACK information at the same time; or, when the SR needs to be sent in the current uplink subframe, transmits the SR in the form of a meta MAC PDU on the uplink carrier where the PUSCH of the UCI is transmitted, and transmits the UCI The uplink carrier where the PUCCH is located transmits both SR and ACK/NACK information.

In the embodiment of the present invention, the carrier determining unit 141 determines that the uplink carrier where the PUCCH of the UCI is transmitted is the uplink primary carrier PCC of the plurality of uplink carriers that are aggregated or activated by the UE; and determines the uplink of the PUSCH for transmitting the UCI. The carrier is an uplink primary carrier PCC or an uplink secondary carrier SCC among a plurality of uplink carriers aggregated or activated by the UE; for example, a carrier having a minimum carrier number among a plurality of uplink carriers aggregated or activated by the UE.

In the embodiment of the present invention, the response feedback unit 142 determines that the current uplink subframe is an uplink subframe of the transmission SRS defined in the system, and the UE supports the SRS and the ACK/NACK information, and transmits the PUCCH of the UCI. In the uplink carrier, the ACK/NACK information is transmitted by using the truncated PUCCH transmission format reserved with the SRS transmission position, and the SRS information is transmitted according to the predefined configuration in the last symbol of the current uplink subframe; or, in the current uplink subframe. For the uplink subframe for transmitting the SRS corresponding to the uplink carrier where the PUCCH of the UCI is transmitted in the system, and the UE supports the simultaneous transmission of the SRS and the ACK/NACK information, the uplink carrier where the PUCCH of the UCI is transmitted is used. The ACK/NACK information is transmitted in a truncated PUCCH transmission format leaving the SRS transmission location, and the SRS is transmitted in the last symbol of the current uplink subframe according to a predefined configuration.

The channel state information feedback unit 143 is configured to rate the data transmission on the PUSCH according to a predefined configuration of the SRS when the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted.

The truncated PUCCH transmission format used by the response feedback unit 142 may use the Shortened PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the Shortened PUCCH format 1/la under the extended CP. /lb, or the Shortened PUCCH format under the conventional CP/extended CP of Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) based on Discrete Fourier Transform Extension.

The response feedback unit 142 determines that the current uplink subframe is an uplink subframe for transmitting the SRS defined in the system, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, and transmits the uplink carrier where the PUCCH of the UCI is transmitted. The RRC/NACK information is transmitted in the normal PUCCH transmission format in which the SRS transmission location is not reserved, and the uplink carrier in which the PUCCH of the UCI is transmitted does not transmit the SRS information in the current uplink subframe; or, the current uplink subframe is determined to be the transmission defined in the system. When the uplink carrier corresponding to the PUCCH of the UCI is used to transmit the uplink subframe of the SRS, and the UE does not support the simultaneous transmission of the SRS and the ACK/NACK information, the uplink carrier where the PUCCH of the UCI is transmitted is used, and the unreserved SRS transmission location is used. The conventional PUCCH transmission format transmits ACK/NACK information, and the uplink carrier where the PUCCH of the UCI is transmitted does not transmit the SRS in the current uplink subframe.

The channel state information feedback unit 143, when the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted, the data transmission of the channel state information feedback unit 143 on the PUSCH performs rate matching according to the predefined configuration of the SRS.

The response feedback unit 142 determines that the current uplink subframe is not an uplink subframe for transmitting the SRS defined in the system, and the uplink carrier where the PUCCH of the UCI is transmitted is transmitted through a conventional PUCCH transmission format in which the SRS transmission location is not reserved. ACK/NACK information.

The conventional PUCCH transmission format used by the response feedback unit 142 may use the Normal PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the extended CP specified in the LTE Rel-8 system. The Normal PUCCH format 1/la/lb; or the Normal PUCCH format under the conventional CP/extended CP of the orthogonal frequency division multiplexing DFT-S-OFDM based on the discrete Fourier transform extension.

A base station that receives UCI is further provided in the embodiment of the present invention. As shown in FIG. 15, the method includes: Element 151, configured to determine an uplink carrier where the physical uplink control channel PUCCH of the UCI is transmitted by the UE, and the UE transmits

The uplink uplink carrier where the physical uplink shared channel PUSCH of the UCI is located; the response receiving unit 152, configured to receive the positive acknowledgement ACK/negative acknowledgement NACK information by using the PUCCH in the uplink carrier where the determined UE transmits the UCI PUCCH; the channel state information receiving unit 153 And for receiving, on the PUSCH, channel state information CQI/PMI/RL, where the determined UE transmits the uplink carrier where the UCI is located.

The channel state information received by the channel state information receiving unit includes any one or more of the following three parameters: CQI, PMI, and RI.

Preferably, the base station further includes: an SR receiving unit 154, if the current uplink subframe is an uplink subframe used for transmitting the SR defined in the system, the uplink carrier used for transmitting the PUSCH of the UCI in the UE, and receiving the UE by using the MAC The SR transmitted in the form of the PDU; or the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and receives the SR and ACK/NACK information simultaneously transmitted by the UE; or the uplink carrier used for transmitting the UCI of the UE in the UE, receiving The UE transmits the SR in the form of a MAC PDU, and receives the SR and ACK/NACK information simultaneously transmitted by the UE at the uplink carrier where the UE transmits the PUCCH of the UCI.

The uplink carrier where the PUCCH of the UCI is transmitted by the UE determined by the carrier determining unit 151 is the uplink primary carrier PCC of the plurality of uplink carriers aggregated or activated by the UE; the uplink carrier where the PUSCH of the UCI transmitted by the UE determined by the carrier determining unit 151 is An uplink primary carrier PCC or an uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE; for example, a carrier having the smallest carrier number among the plurality of uplink carriers aggregated or activated by the UE.

The response receiving unit 152 determines that the current uplink subframe is an uplink subframe for transmitting the SRS defined in the system, and when the UE supports the SRS and the ACK/NACK information, the UE transmits the uplink carrier where the PUCCH of the UCI is located, and receives the UE. The ACK/NACK information transmitted by the truncated PUCCH transmission format in which the SRS transmission location is reserved is used, and the SRS is acquired in the last symbol of the current uplink subframe according to the predefined configuration of the SRS; or, the current uplink subframe is determined as the system. When the uplink subframe corresponding to the PUCCH in which the UCI is transmitted is used to transmit the uplink subframe of the SRS, and the UE supports the simultaneous transmission of the SRS and the ACK/NACK information, the UE transmits the uplink carrier where the PUCCH of the UCI is located, and the receiving UE uses the uplink carrier. The ACK/NACK information transmitted in the truncated PUCCH transmission format of the SRS transmission location is reserved, and the SRS is acquired in the last symbol of the current uplink subframe according to the SRS predefined configuration.

The channel state information receiving unit 153 is configured to receive data on the PUSCH according to a predefined configuration of the SRS when the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted.

The truncated PUCCH transmission format used by the response receiving unit 152 can use the Shortened PUCCH format 1/1 a/lb under the conventional CP specified in the LTE Rel-8 system, or the Shortened PUCCH format 1/ under the extended CP. La/lb, or the Shortened PUCCH format under the conventional CP/extended CP of Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) based on Discrete Fourier Transform Extension. The response receiving unit 152 determines that the current uplink subframe is an uplink subframe defined by the system for transmitting the SRS, and

When the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, the UE transmits the uplink carrier where the PUCCH of the UCI is located, and receives the ACK/NACK information transmitted by the UE in the conventional PUCCH transmission format of the unreserved SRS transmission location; or Determining that the current uplink subframe is an uplink subframe for the SRS corresponding to the uplink carrier where the PUCCH for transmitting the UCI is located in the system, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, and the UE is in the transmission. The uplink carrier where the PUCCH of the UCI is located receives the ACK/NACK information transmitted by the UE in the normal PUCCH transmission format of the unreserved SRS transmission location, and the uplink carrier where the PUCCH of the UCI is transmitted does not transmit the SRS in the current uplink subframe.

The response receiving unit 152 determines that the current uplink subframe is not an uplink subframe of the transmission SRS defined in the system, and the uplink PUCCH where the UE transmits the UCI, and receives the conventional PUCCH transmission format of the UE using the unreserved SRS transmission location. Transmit ACK/NACK information.

The conventional PUCCH transmission format used by the response receiving unit 152 can use the Normal PUCCH format 1/la/lb under the conventional CP specified in the LTE Rel-8 system, or the extended CP specified in the LTE Rel-8 system. The Normal PUCCH format 1/la/lb; or the Normal PUCCH format under the conventional CP/extended CP of the orthogonal frequency division multiplexing DFT-S-OFDM based on the discrete Fourier transform extension.

The UCI transmission method and the UE, the UCI receiving method, and the base station according to the embodiments of the present invention provide different types of UCI information in the PUCCH in the LTE-A system that supports the same UE to simultaneously transmit PUCCH and PUSCH in one uplink subframe. And / or PUSCH simultaneous transmission scheme. The scheme can select appropriate UCI information to be transmitted on an appropriate channel according to the specific configuration and scheduling of the UE, ensuring transmission reliability, and avoiding as many uplink types as possible due to multiple types of UCI and/or SRS. The feedback information discarding problem during collision improves the scheduling accuracy.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

These computer program instructions can also be stored in a particular computer capable of booting a computer or other programmable data processing device In a computer readable memory that operates in a computer readable memory, causing instructions stored in the computer readable memory to produce an article of manufacture comprising instruction means implemented in a block or in a flow or in a flow chart and/or block diagram of the flowchart The functions specified in the boxes.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

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

Claims

Rights request

1. An uplink control information UCI transmission method, which is characterized in that it comprises the following steps:

The UE transmits channel state information through the PUSCH on the uplink carrier where the PUSCH of the UCI is transmitted.

The method of claim 1, wherein: if the current uplink subframe is an uplink subframe that is used in the system to transmit the scheduling request SR, the method further includes:

When the SR is to be sent in the current uplink subframe, the UE transmits the SR in the form of a medium access control protocol data unit MAC PDU in the uplink carrier where the PUSCH of the transmission UCI is located; or

Transmitting, by the UE, SR and ACK/NACK information on the uplink carrier where the PUCCH of the UCI is transmitted; or

When the SR is to be sent in the current uplink subframe, the UE transmits the SR in the form of a medium access control protocol data unit MAC PDU on the uplink carrier where the PUSCH of the UCI is transmitted, and the UE is in the transmission UCI. The uplink carrier where the PUCCH is located transmits both SR and ACK/NACK information.

The method according to claim 1 or 2, wherein the uplink carrier where the PUCCH of the UCI is transmitted is an uplink primary carrier PCC of the plurality of uplink carriers aggregated or activated by the UE; The uplink carrier where the PUSCH of the UCI is located is an uplink primary carrier PCC or an uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE.

The method according to claim 1 or 2, wherein the UE transmits ACK/NACK information through the PUCCH on the uplink carrier where the PUCCH of the UCI is transmitted, which specifically includes:

If the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS defined in the system, and the UE supports simultaneous transmission of SRS and ACK/NACK information, the uplink carrier where the UE transmits the PUCCH of the UCI Transmitting the ACK/NACK information by using a truncated PUCCH transmission format reserved with an SRS transmission location, and the SRS is sent according to a predefined configuration in the last symbol of the current uplink subframe; or

If the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the UCI is defined in the system, and the UE supports the SRS and the ACK/NACK information to be simultaneously transmitted, the UE is in the The uplink carrier where the PUCCH of the UCI is transmitted is truncated with the reserved SRS transmission position The PUCCH transmission format transmits the ACK/NACK information, and the SRS is transmitted in the last symbol of the current uplink subframe according to a predefined configuration.

5. The method according to claim 4, wherein the truncated PUCCH transmission format is any one of the following transmission formats:

Shortened PUCCH format under conventional CP based on Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) based on Discrete Fourier Transform Extension;

6. The method of claim 4, wherein

When the UE has data transmission on the uplink carrier where the PUSCH of the transmission UCI is located, the data transmission on the PUSCH performs rate matching according to the predefined configuration of the SRS.

The method according to claim 1 or 2, wherein the UE transmits the ACK/NACK information through the PUCCH on the uplink carrier where the PUCCH of the UCI is transmitted, and the method includes:

If the current uplink subframe is an uplink subframe defined in the system for transmitting the sounding reference signal SRS, and

The UE does not support simultaneous transmission of the SRS and the ACK/NACK information, and the UE transmits the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier where the PUCCH of the UCI is transmitted. The uplink carrier where the PUCCH transmitting the UCI is located does not transmit the SRS in the current uplink subframe; or

If the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the UCI is defined in the system, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, the UE And transmitting, by the normal PUCCH transmission format of the unreserved SRS transmission location, the ACK/NACK information in the uplink carrier where the PUCCH of the UCI is transmitted, where the uplink carrier where the PUCCH of the UCI is transmitted is not in the current uplink subframe. Send SRS.

8. The method according to claim 7, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the conventional CP specified in the LTE Rel-8 system; Normal PUCCH format la under the conventional CP specified in the LTE Rel-8 system;

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

Orthogonal Frequency Division Multiplexing Based on Discrete Fourier Transform Extension DFT-S-OFDM Normal Under CP

PUCCH format;

9. The method of claim 7 wherein:

The method according to claim 1 or 2, wherein the UE transmits ACK/NACK information through the PUCCH on the uplink carrier where the PUCCH of the UCI is transmitted, and the method specifically includes:

If the current uplink subframe is not an uplink subframe defined in the system for transmitting the sounding reference signal SRS,

The UE transmits the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier where the PUCCH of the transmission UCI is located.

The method according to claim 10, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The method according to claim 1 or 2, wherein the channel state information comprises any one or more of the following three parameters: a channel shield quantity indication CQI; a precoding matrix index PMI; a rank indication RI.

13. An uplink control information UCI receiving method, characterized in that

The base station transmits the channel state information through the PUSCH in the uplink carrier where the UE transmits the PUSCH of the UCI.

The method according to claim 13, wherein: if the current uplink subframe is an uplink subframe defined by the system for transmitting the scheduling request SR, the method further includes:

The base station transmits, by the UE, an uplink carrier where the PUSCH of the UCI is located, and receives the SR transmitted by the UE in the form of a media access control protocol data unit MAC PDU; or

The base station transmits, at the uplink carrier where the PUCCH of the UCI is located, the SR and ACK/NACK information that the UE simultaneously transmits; or

And the receiving, by the base station, the uplink carrier where the PUSCH of the UCI is transmitted by the UE, receiving the SR transmitted by the UE in the form of a medium access control protocol data unit MAC PDU, and receiving the UE on the uplink carrier where the PUCCH of the UCI is transmitted by the UE SR and ACK/NACK information transmitted simultaneously.

15. The method of claim 13 or 14, wherein

The uplink carrier where the PUCCH of the UCI is transmitted by the UE is the uplink primary carrier PCC of the plurality of uplink carriers that are aggregated or activated by the UE;

The uplink carrier where the PUSCH of the UCI is transmitted by the UE is the uplink primary carrier PCC or one uplink secondary carrier SCC of the multiple uplink carriers that are aggregated or activated by the UE.

The method according to claim 13 or 14, wherein the base station transmits the ACK/NACK information by using the PUCCH on the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the method includes:

When the base station determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS transmission defined in the system, and the UE supports the SRS and the ACK/NACK information, the base station transmits the UCI in the UE. The uplink carrier where the PUCCH is located, receives the ACK/NACK information transmitted by the UE using the truncated PUCCH transmission format reserved with the SRS transmission position, and acquires the last symbol in the current uplink subframe according to the predefined configuration of the SRS. SRS; or,

The base station determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the UCI defined in the system is located, and the UE supports the SRS and the ACK/NACK information to be simultaneously transmitted. The base station transmits an uplink carrier where the PUCCH of the UCI is transmitted by the base station, and receives the reserved call of the UE. The ACK/NACK information transmitted in the truncated PUCCH transmission format of the SRS transmission location, and the SRS is acquired in the last symbol of the current uplink subframe according to the SRS predefined configuration.

The method according to claim 16, wherein the truncated PUCCH transmission format is any one of the following transmission formats:

The method according to claim 16, wherein, when the UE has data transmission on an uplink carrier where the PUSCH of the UCI is transmitted, the base station receives the PUSCH according to a predefined configuration of the SRS. The data on it.

When the base station determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS transmission defined in the system, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, the base station transmits in the UE. The uplink carrier where the PUCCH of the UCI is located, and receives the ACK/NACK information transmitted by the UE in the normal PUCCH transmission format of the unreserved SRS transmission location; or

The base station determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the UCI is defined in the system, and the UE does not support the SRS and the ACK/NACK information simultaneously. And receiving, by the base station, ACK/NACK information transmitted by the UE in a normal PUCCH transmission format of an unreserved SRS transmission location, where the UE is in an uplink carrier where the PUCCH of the UCI is transmitted, where the UCI is transmitted. The uplink carrier where the PUCCH is located does not transmit the SRS in the current uplink subframe.

20. The method according to claim 19, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

PUCCH format;

The method according to claim 19, wherein when the UE has data transmission on an uplink carrier where the PUSCH of the UCI is transmitted, the base station receives the PUSCH according to a predefined configuration of the SRS. The data on it.

When the base station determines that the current uplink subframe is not an uplink subframe for transmitting the sounding reference signal SRS defined in the system, the base station transmits the uplink carrier where the PUCCH of the UCI is located in the UE, and receives the UE The ACK/NACK information is transmitted in a conventional PUCCH transmission format in which the SRS transmission location is reserved.

The method according to claim 22, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The method according to claim 13 or 14, wherein the channel state information comprises any one or more of the following three parameters: a channel shield quantity indication CQI; a precoding matrix index PMI; a rank indication RI. The data on it.

25. A user terminal UE that transmits an uplink control UCI, and is characterized by:

The channel state information feedback unit is configured to transmit channel state information through the PUSCH on the uplink carrier where the PUSCH of the UCI is transmitted.

The UE according to claim 25, further comprising:

The SR feedback unit, if the current uplink subframe is an uplink subframe used by the system to transmit the scheduling request SR, when the SR is to be sent in the current uplink subframe, the uplink carrier where the PUSCH of the UCI is transmitted is located. Transmitting the SR in the form of a media access control protocol data unit MAC PDU; or for transmitting the SR and ACK/NACK information simultaneously on the uplink carrier where the PUCCH of the UCI is transmitted; or for the current uplink subframe When the SR needs to be sent, the SR is transmitted in the form of a medium access control protocol data unit MAC PDU on the uplink carrier where the PUSCH of the UCI is transmitted, and the UE is in the uplink carrier where the PUCCH of the UCI is transmitted, Transmit SR and ACK/NACK information.

The UE according to claim 25 or 26, wherein the carrier determining unit determines that the uplink carrier where the PUCCH of the UCI is transmitted is an uplink of multiple uplink carriers that are aggregated or activated by the UE. The primary carrier PCC; the determined uplink carrier where the PUSCH of the UCI is transmitted is the uplink primary carrier PCC or one uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE.

The UE according to claim 25 or 26, wherein the response feedback unit determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS defined in the system, and the UE When the SRS and the ACK/NACK information are simultaneously transmitted, the ACK/NACK information is transmitted on the uplink carrier where the PUCCH of the UCI is transmitted, and the ACK/NACK information is transmitted in a truncated PUCCH transmission format in which the SRS transmission location is reserved. Configuring to transmit the last subframe of the current uplink subframe, or the uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the UCI defined in the system is defined in the current uplink subframe, and the UE When the SRS and the ACK/NACK information are simultaneously transmitted, the ACK/NACK information is transmitted in the truncated PUCCH transmission format in which the SRS transmission location is reserved, in the uplink carrier where the PUCCH of the UCI is transmitted, and the SRS is pre-defined according to the predefined Configure to send the last symbol in the current uplink subframe.

The UE according to claim 28, wherein the truncated PUCCH transmission format is any one of the following transmission formats:

Shortened PUCCH format 1 under the conventional CP specified in the LTE Rel-8 system; Shortened PUCCH format la under the conventional CP specified in the LTE Rel-8 system;

The UE according to claim 29, wherein the channel state information feedback unit, when

When the UE has data transmission on the uplink carrier where the PUSCH of the UCI is transmitted, the data transmission of the channel state information feedback unit on the PUSCH is rate matched according to the predefined configuration of the SRS.

The UE according to claim 25 or 26, wherein the response feedback unit determines that the current uplink subframe is an uplink subframe for transmitting a sounding reference signal SRS defined in the system, and the UE When the SRS and the ACK/NACK information are not supported for simultaneous transmission, the ACK/NACK information is transmitted in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier where the PUCCH of the UCI is transmitted, the transmission UCI The uplink carrier where the PUCCH is located does not transmit the SRS in the current uplink subframe; or the uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the current uplink subframe is the PUCCH of the transmission UCI defined in the system, And when the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, transmitting the ACK/NACK information in the normal PUCCH transmission format of the unreserved SRS transmission location on the uplink carrier where the PUCCH of the UCI is transmitted, The uplink carrier where the PUCCH transmitting the UCI is located does not transmit the SRS in the current uplink subframe.

The UE according to claim 31, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 a in the conventional CP specified in the LTE Rel-8 system;

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

PUCCH format; Normalization under extended CP of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension

PUCCH format.

The UE according to claim 31, wherein the channel state information feedback unit is configured to: when the UE has data transmission on an uplink carrier where the PUSCH of the UCI is transmitted, the channel state information feedback unit The data transmission on the PUSCH is rate matched according to a predefined configuration of the SRS.

The UE according to claim 25 or 26, wherein the response feedback unit determines, when the current uplink subframe is not an uplink subframe of the sounding reference signal SRS, the uplink where the PUCCH of the UCI is transmitted The carrier transmits ACK/NACK information in a conventional PUCCH transmission format that does not reserve an SRS transmission location.

The UE according to claim 34, wherein the conventional PUCCH transmission format is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The UE according to claim 25 or 26, wherein the channel state information fed back by the channel state information feedback unit comprises any one or more of the following three parameters: a channel shield indicating CQI; a precoding matrix Index PMI; rank indication RI.

37. A base station for receiving uplink control information UCI, which is characterized by comprising:

a response receiving unit, configured to receive, by using the PUCCH, a positive acknowledgement ACK/negative acknowledgement NACK information, where the determined UE transmits an uplink carrier where the PUCCH of the UCI is located;

The channel state information receiving unit is configured to receive the channel state information by using the PUSCH in the uplink carrier where the determined UE transmits the PUSCH of the UCI.

The base station according to claim 37, further comprising: And an SR receiving unit, if the current uplink subframe is an uplink subframe used by the system to transmit the scheduling request SR, the uplink carrier used to transmit the UCI PUSCH in the UE, and the UE receives the media access control protocol data. An SR transmitted in the form of a unit MAC PDU; or an uplink carrier in which the PUCCH of the UCI is transmitted by the UE, receiving SR and ACK/NACK information simultaneously transmitted by the UE; or a PUSCH for transmitting UCI in the UE The uplink carrier is located, and receives the SR transmitted by the UE in the form of a medium access control protocol data unit MAC PDU, and receives the SR and ACK/NACK information simultaneously transmitted by the UE in the uplink carrier where the PUCCH of the UCI is transmitted by the UE.

39. The base station of claim 37 or 38, wherein

The uplink carrier where the PUCCH of the UCI is transmitted by the UE determining unit is the uplink primary carrier PCC of the plurality of uplink carriers aggregated or activated by the UE;

The uplink carrier where the PUSCH of the UE transmits the UCI determined by the carrier determining unit is an uplink primary carrier PCC or an uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE.

The base station according to claim 37 or 38, wherein the response receiving unit determines that the current uplink subframe is an uplink subframe for transmitting a sounding reference signal SRS defined in the system, and the UE When the SRS and the ACK/NACK information are simultaneously transmitted, the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the ACK/NACK information transmitted by the UE using the truncated PUCCH transmission format reserved for the SRS transmission position, according to The pre-defined configuration of the SRS acquires the SRS in the last symbol of the current uplink subframe; or determines that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the transmission UCI defined in the system is located. And when the UE supports the SRS and the ACK/NACK information to be simultaneously transmitted, the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the received UE is transmitted by using the truncated PUCCH transmission format reserved for the SRS transmission position. ACK/NACK information, and acquires the SRS in the last symbol of the current uplink subframe according to the SRS predefined configuration.

The base station according to claim 40, wherein the truncated PUCCH transmission format used by the response receiving unit is any one of the following transmission formats:

The base station according to claim 40, wherein the channel state information receiving unit is configured to: when the UE has data transmission on an uplink carrier where the PUSCH of the UCI is transmitted, according to the SRS The predefined configuration receives data on the PUSCH.

The base station according to claim 37 or 38, wherein the response receiving unit is configured to determine that the current uplink subframe is an uplink subframe defined by the system for transmitting the sounding reference signal SRS, and When the UE does not support simultaneous transmission of the SRS and the ACK/NACK information, the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the ACK/NACK information transmitted by the UE using the conventional PUCCH transmission format of the unreserved SRS transmission location; Or, when determining that the current uplink subframe is an uplink subframe for transmitting the sounding reference signal SRS corresponding to the uplink carrier where the PUCCH of the transmission UCI defined in the system is located, and the UE does not support simultaneous transmission of the SRS and the ACK/NACK information And receiving, in the uplink carrier where the PUCCH of the UCI is transmitted, the ACK/NACK information transmitted by the UE in a normal PUCCH transmission format of an unreserved SRS transmission location, where the PUCCH of the UCI is transmitted The uplink carrier does not transmit the SRS in the current uplink subframe.

The base station according to claim 43, wherein the conventional PUCCH transmission format used by the response receiving unit is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The base station according to claim 43, wherein the channel state information receiving unit is configured to: when the UE has data transmission on an uplink carrier where the PUSCH of the UCI is transmitted, according to the SRS The predefined configuration receives data on the PUSCH.

The base station according to claim 37 or 38, wherein the response receiving unit determines that the current time is The downlink subframe is not an uplink subframe of the sounding reference signal SRS, and the uplink carrier where the PUCCH of the UCI is transmitted by the UE, and the RRC/NACK information transmitted by the UE using the normal PUCCH transmission format of the unreserved SRS transmission location is transmitted. .

The base station according to claim 46, wherein the conventional PUCCH transmission format used by the response receiving unit is any one of the following transmission formats:

Normal PUCCH format 1 under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format la under the extended CP specified in the LTE Rel-8 system;

Normal PUCCH format lb under the extended CP specified in the LTE Rel-8 system;

The base station according to claim 37 or 38, wherein the channel state information received by the channel state information receiving unit includes any one or more of the following three parameters: a channel shield indicating CQI; a precoding matrix Index PMI; rank indication RI.