WO2016119446A1 - 一种实现上行控制信息的传输方法及装置 - Google Patents

一种实现上行控制信息的传输方法及装置 Download PDF

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Publication number
WO2016119446A1
WO2016119446A1 PCT/CN2015/087395 CN2015087395W WO2016119446A1 WO 2016119446 A1 WO2016119446 A1 WO 2016119446A1 CN 2015087395 W CN2015087395 W CN 2015087395W WO 2016119446 A1 WO2016119446 A1 WO 2016119446A1
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Prior art keywords
pucch
narrowband
resource
pucch format
ecce
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PCT/CN2015/087395
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English (en)
French (fr)
Inventor
陈宪明
戴博
夏树强
鲁照华
刘锟
石靖
张雯
方惠英
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中兴通讯股份有限公司
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Publication of WO2016119446A1 publication Critical patent/WO2016119446A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals

Definitions

  • This application relates to, but is not limited to, Long Term Evolution (LTE) technology.
  • LTE Long Term Evolution
  • the User Equipment (UE) of Machine Type Communication (MTC) or Machine to Machine (M2M) is the main application form of the Internet of Things at this stage.
  • Low power consumption / low cost is an important guarantee for its large-scale application.
  • LTE Long Term Evolution
  • M2M devices deployed on the market are mainly based on the Global System of Mobile communication (GSM) system.
  • GSM Global System of Mobile communication
  • LTE-based M2M multiple classes Data services will also be more attractive.
  • the cost of user equipment comes mainly from two parts: the baseband processing part and the radio frequency part. Reducing the uplink and/or downlink transmission bandwidth of the UE (including baseband and radio frequency bandwidth) is a very effective way to reduce the cost of the MTC UE. For example, setting the uplink and/or downlink transmission bandwidth of all MTC UEs can only be 1.4 MHz, etc. Narrowband bandwidth (even if the system bandwidth is much longer than 1.4MHz). In addition to the above method for reducing bandwidth, the following manners may also be selected to further reduce the cost of the MTC UE, such as: single receiving antenna, reduced transmit power, reduced maximum transport block size (TBS, Transport Block Size), and the like.
  • TBS reduced maximum transport block size
  • the enhanced channel type includes a physical uplink or downlink shared channel (PUSCH/PDSCH, Physical Uplink/Downlink Shared Channel) and a physical uplink or downlink control channel (PUCCH/PDCCH, Physical Uplink/Downlink Control Channel).
  • PDSCH coverage enhancement includes system information block (SIB, System) Information Block) Data, coverage enhancement of paging messages, and coverage enhancement of unicast service data.
  • SIB System information block
  • coverage enhancement coverage enhancement of paging messages
  • coverage enhancement of unicast service data In order to accumulate more energy to improve coverage, methods of repeated transmission (ie, one transmission typically occupies multiple subframes) are typically used to implement transmission enhancements for various channel types.
  • a PUCCH is used to carry uplink control information (UCI).
  • the UCI includes: Hybrid Automatic Repeated Request (HARQ) acknowledgement (ACK/NACK), Scheduling Request (SR), and Channel State Information (CSI).
  • HARQ Hybrid Automatic Repeated Request
  • ACK/NACK Hybrid Automatic Repeated Request
  • SR Scheduling Request
  • CSI Channel State Information
  • the transmission bandwidth of the MTC UE is reduced or limited, for example, when data is transmitted in at most 6 consecutive physical resource blocks (PRBs), in order to ensure the normal transmission of the UCI, a new uplink is introduced.
  • the narrowband PUCCH channel is one of the potential solutions. However, there is no relevant solution for how to efficiently transmit UCI data on the above narrowband PUCCH channel.
  • the embodiments of the present invention provide a method and an apparatus for transmitting uplink control information, which can implement efficient transmission of UCI in a new PUCCH narrowband introduced in the uplink.
  • the embodiment of the invention provides a method for transmitting uplink control information, including:
  • the PUCCH resources carried by the available resource block RBs in the narrowband of the PUCCH are numbered according to the physical uplink control channel PUCCH structure;
  • the uplink control information UCI is transmitted according to the numbered PUCCH resource.
  • the PUCCH structure includes a PUCCH format 1x structure and a PUCCH format 2x structure.
  • the UCI includes a hybrid automatic repeat request HARQ acknowledgment ACK/NACK, scheduling request SR information, and channel state information CSI.
  • the numbering of the PUCCH resources that can be carried by the RB in the narrowband of the PUCCH includes:
  • the source is numbered uniformly.
  • the method further includes: determining the available number of resources of the PUCCH format 1x structure and the available PUCCH format 2x structure The number of resources.
  • the step of determining the number of resources of the available PUCCH format 1x structure includes:
  • the step of determining the available resource number of the PUCCH format 2x structure includes:
  • delta PUCCH-Shift is notified to the terminal by one of system parameters broadcasted by the base station, and the N is a positive integer greater than one.
  • the N is equal to 3.
  • the step of transmitting the UCI according to the numbered PUCCH resource includes:
  • the method further comprises: determining the PUCCH narrowband for transmitting the ACK/NACK.
  • the step of determining a PUCCH narrowband for transmitting an ACK/NACK includes:
  • the PUCCH narrowband is implicitly determined by enhancing one of a downlink control channel EPDCCH narrowband, a PDSCH narrowband RB resource, and an enhanced control channel element ECCE;
  • the PUCCH narrowband is explicitly notified by one of downlink control information DCI signaling, radio resource control RRC signaling, and random access response RAR message.
  • the method also includes determining a PUCCH format 1x resource within a narrowband of the PUCCH that transmits the ACK/NACK.
  • the steps of the source include:
  • the PUCCH format 1x resource in the narrowband of the PUCCH for transmitting the ACK/NACK is determined according to the following formula:
  • n 2 (O format1x + n 1 ) modQ;
  • O format1x is a preset offset of a PUCCH format 1x resource range in the narrowband of the PUCCH that is preset or notified by RRC signaling or RAR message;
  • n 2 is an index of a PUCCH format 1x resource in a narrowband of a PUCCH in which the ACK/NACK is transmitted;
  • N 1 is one of the following values: an ECCE index; a group index of an ECCE group in which the ECCE is located; an index of the ECCE in the ECCE group; an RB index in a narrow band of the PDSCH; or an index notified by DCI signaling or RRC signaling;
  • Q represents the total number of PUCCH format 1x resources available in the narrowband of the PUCCH.
  • n 1 is the index of the group where the ECCE ECCE group
  • n 1 is the index of the group where the ECCE ECCE group
  • n 1 is the index ECCE ECCE is located within the group, prior to the step of determining the PUCCH format 1x ECCE resources within a narrow band in accordance with PUCCH, further comprising:
  • the step of determining the PUCCH narrowband for transmitting the ACK/NACK before the RRC connection is established includes:
  • the PUCCH narrowband of the transport ACK/NACK is implicitly determined by one of an EPDCCH narrowband, a PDSCH narrowband, a PDSCH narrowband intra RB resource, and an ECCE resource;
  • the starting offset of the available PUCCH format 1x resource range in the narrowband of the PUCCH is preset, and the value is fixed to 0.
  • the step of determining the PUCCH narrowband for transmitting the ACK/NACK includes:
  • the initial offset of the available PUCCH format 1x resource range within the PUCCH narrowband and PUCCH narrowband of the transmitted ACK/NACK is notified by an RRC message.
  • the method When determining the PUCCH narrowband for transmitting the ACK/NACK according to the ECCE resource, the method includes:
  • the step of implicitly determining the PUCCH narrowband by the EPDCCH narrowband, the PDSCH narrowband, the RB resources in the narrowband of the PDSCH, and the ECCE resources, and the PDSCH data corresponding to the plurality of downlink subframes In the case of an ACK/NACK resource of an uplink subframe,
  • the multiple downlink PDSCH data always uses the same EPDCCH narrowband, or the same PDSCH narrowband, or the same PDSCH narrowband RB resource, or the same ECCE;
  • the method further includes: determining a PUCCH narrowband and a PUCCH format 2x resource within a PUCCH narrowband for transmitting CSI in the UCI; or determining a PUCCH narrowband and PUCCH format 1x for transmitting an SR in the UCI Resources.
  • the PUCCH narrowband of the transmitting SR and the PUCCH format 1x resource in the PUCCH narrowband are indicated by RRC signaling.
  • the following information is preset or notified to the terminal as one of the system parameters broadcast by the base station:
  • the preset number of PUCCH narrowbands or the maximum number of PUCCH narrowbands indicated by system parameters are different.
  • the different TDD subframe configurations correspond to the same PUCCH narrowband number, and the preset PUCCH narrowband number or the PUCCH narrowband number indicated by the system parameter is determined according to one of all TDD subframe configurations.
  • the method further includes:
  • the frequency hopping process is performed according to the obtained PUCCH narrowband frequency hopping granularity.
  • the number of repeated transmissions of the available PUCCH is determined according to the narrowband hopping granularity.
  • the step of acquiring the PUCCH narrowband frequency hopping granularity includes:
  • the PUCCH narrowband frequency hopping granularity is notified to the terminal as one of system parameters broadcast by the base station; wherein, the hopping interval between different PUCCH narrowbands is equal to the PUCCH narrowband hopping granularity.
  • the narrowband hopping granularity is a number of subframes in which transmission is determined within a narrowband of the PUCCH;
  • the first transmitted subframe It can be used as the PUCCH repeated transmission according to the PUCCH narrowband frequency hopping granularity and the following formula.
  • the first transmitted subframe :
  • the I subframe indicates the subframe index of the subframe that can be used as the first transmission of the PUCCH repeated transmission, and the value ranges from 0 to 9.
  • the I frame indicates that the PUCCH can be used for the repeated transmission of the PUCCH.
  • the index of the radio frame where the first transmitted subframe is located, and Ghopping indicates the PUCCH narrowband hopping granularity.
  • the frequency hopping process is performed in advance according to the frequency hopping mode for determining the TDD uplink and downlink configuration; or, by using the frequency hopping mode used by the system parameter configuration of the broadcast.
  • the frequency hopping process is performed in advance according to the frequency hopping mode for determining the TDD uplink and downlink configuration; or, by using the frequency hopping mode used by the system parameter configuration of the broadcast.
  • the step of acquiring the PUCCH narrowband frequency hopping granularity includes:
  • the PUCCH narrowband hopping granularity and the hopping interval between different PUCCH narrowbands are determined according to a TDD subframe configuration.
  • the determining, according to the TDD subframe configuration, the PUCCH narrowband hopping granularity and the hopping interval between different PUCCH narrowbands includes:
  • the PUCCH narrowband hopping granularity is equal to the continuous maximum number of uplink subframes, and the hopping interval between different PUCCH narrowbands is equal to the continuous maximum non-uplink subframe number, wherein, the non-uplink
  • the subframe includes a downlink subframe and a special subframe;
  • the PUCCH narrowband hopping granularity is equal to 3 or 2
  • the hopping interval between different PUCCH narrowbands is equal to 2 or 3 subframes.
  • the manner of transmitting the UCI includes: determining a time domain spreading code of a PUCCH format 1x resource by using RRC or DCI signaling, and determining a time domain of the repeatedly transmitted PUCCH format 2x resource by using RRC signaling a spreading code; transmitting the UCI according to a time domain spreading code.
  • the step of determining a time domain spreading code of a PUCCH format 1x resource, and determining a time domain spreading code of the repeatedly transmitted PUCCH format 2x resource includes:
  • the time domain spreading granularity of the time domain spreading code is a time slot, and the length is 2 time slots;
  • the time domain spreading granularity of the time domain spreading code is a subframe and the length is equal to the PUCCH narrowband frequency hopping granularity.
  • the present invention also provides an apparatus for transmitting uplink control information, including a first processing module and a second processing module;
  • the first processing module is configured to, according to the PUCCH structure, number the PUCCH resources carried by the available resource block RBs in the narrowband of the PUCCH;
  • the second processing module is configured to transmit the UCI according to the numbered PUCCH resource.
  • the PUCCH structure includes a PUCCH format 1x structure and a PUCCH format 2x structure.
  • the UCI includes a hybrid automatic repeat request HARQ acknowledgement ACK/NACK, scheduling request SR information, and channel state information CSI.
  • the first processing module is configured to: perform a unified numbering of the PUCCH format 1x resource and the PUCCH format 2x resource carried by the available RBs in the narrowband of the PUCCH according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively; ,
  • the second processing module is configured to: transmit ACK/NACK and SR information according to the PUCCH format 1x resource after the unified number, and transmit CSI information according to the PUCCH format 2x resource after the unified number.
  • the first processing module is further configured to: determine the number of resources of the available PUCCH format 1x structure and the number of available resources of the PUCCH format 2x structure.
  • the first processing module is configured to:
  • delta PUCCH-Shift is notified to the terminal by one of system parameters broadcasted by the base station, and N is a positive integer greater than one.
  • the second processing module is further configured to: determine the PUCCH narrowband for transmitting ACK/NACK.
  • the second processing module is specifically configured to: implicitly determine a PUCCH narrowband by one of an EPDCCH narrowband, an RB resource in a narrowband of the PDSCH, and an ECCE resource; or pass one of DCI signaling, RRC signaling, and RAR message
  • the PUCCH narrowband is explicitly notified.
  • the second processing module is further configured to: determine a PUCCH narrowband and PUCCH for transmitting CSI a PUCCH format 2x resource within a narrowband; or a PUCCH narrowband and PUCCH format 1x resource that transmits an SR in the UCI.
  • the second processing module is further configured to: obtain a PUCCH narrowband frequency hopping granularity; and obtain a narrowband frequency hopping according to the obtained PUCCH.
  • the granularity performs frequency hopping processing.
  • the second processing module is specifically configured to:
  • the PUCCH narrowband hopping granularity Pre-set the PUCCH narrowband hopping granularity; or, the PUCCH narrowband hopping granularity is notified to the terminal as one of the system parameters broadcast by the base station; wherein, the hopping interval between different PUCCH narrowbands is equal to the PUCCH narrowband hopping granularity; according to the obtained PUCCH
  • the narrowband frequency hopping granularity performs frequency hopping processing.
  • the second processing module When the second processing module transmits the UCI, the second processing module is further configured to: determine a time domain spreading code of the PUCCH format 1x resource by using RRC or DCI signaling, and determine a PUCCH format of the repeated transmission by using RRC signaling.
  • the time domain spreading code of the 2x resource; the UCI is transmitted according to the time domain spreading code.
  • the second processing module is specifically configured to:
  • the time domain spreading granularity of the time domain spreading code is a time slot and has a length of 2 time slots; or, for repeated transmission of PUCCH format 1x resources and repeated transmission of PUCCH format 2x resources
  • the time domain spreading granularity of the time domain spreading code is a subframe and the length is equal to a PUCCH narrowband frequency hopping granularity
  • the UCI is transmitted according to the time domain spreading code.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for executing the above transmission method.
  • the technical solution of the present application includes numbering the PUCCH resources carried by the available resource blocks (RBs) in the narrowband of the PUCCH according to the PUCCH structure; and transmitting the UCI according to the numbered PUCCH resources.
  • the PUCCH structure includes a PUCCH format 1x structure and a PUCCH format 2x structure.
  • the PUCCH format 1x resource and the PUCCH format 2x resource carried by all available RBs in the narrowband of the PUCCH are uniformly numbered according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively, and according to the unified numbered PUCCH format 1x resource and PUCCH format
  • the 2x resource transmits the UCI, so that the PUCCH format 1x resource and the PUCCH format 2x resource share the same resource region in the narrowband of the PUCCH, which reduces the unnecessary PUCCH resource hole to a certain extent, and improves the efficiency of transmitting UCI in the narrow band of the PUCCH, thereby Efficient transmission of UCI within the new PUCCH narrowband introduced in the uplink is achieved.
  • FIG. 1 is a flowchart of a method for transmitting uplink control information according to an embodiment of the present invention
  • FIG. 2(a) is a schematic diagram of a unified numbering of PUCCH format 1x resources in an embodiment of the present invention
  • 2(b) is a schematic diagram of a unified numbering of PUCCH format 2x resources in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an embodiment of pairing a narrowband of a PDSCH with a narrowband of a PUCCH according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an embodiment of using a PUCCH narrowband frequency hopping in the case of FDD and PUCCH repeated transmission according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of an embodiment of determining a location of a narrowband of a PUCCH in a case of TDD subframe configuration 2 according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of an embodiment of using a PUCCH narrowband frequency hopping in a case where TDD subframe configuration 1 and PUCCH repeated transmission are performed according to an embodiment of the present invention
  • FIG. 7(a) is a diagram of superimposing a time domain spreading code on an existing PUCCH transmission format according to an embodiment of the present invention. Schematic diagram of the first embodiment;
  • FIG. 7(b) is a schematic diagram of a second embodiment of superimposing a time domain spreading code on an existing PUCCH transmission format according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of frequency hopping in a narrow band of a PUCCH according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an embodiment of performing PUCCH narrowband frequency hopping according to a frequency hopping mode in a case of TDD subframe configuration 1 in an FDD according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a device for implementing uplink control information transmission according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for transmitting uplink control information according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:
  • Step 100 Number the PUCCH resources carried by the available resource blocks (RBs) in the narrowband of the PUCCH according to the PUCCH structure.
  • the PUCCH structure includes, but is not limited to, a PUCCH format 1x structure and a PUCCH format 2x structure.
  • the UCI includes HARQ acknowledgement ACK/NACK, SR information, and CSI information.
  • this step includes:
  • the PUCCH format 1x resource and the PUCCH format 2x resource carried by the available RBs in the narrowband of the PUCCH are uniformly numbered according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively.
  • the method further includes determining the number of resources of the available PUCCH format 1x structure and the number of resources of the available PUCCH format 2x structure, including:
  • Step 101 Transmit UCI according to the numbered PUCCH resource.
  • the step includes: transmitting ACK/NACK and SR information according to the uniformly numbered PUCCH format 1x resource, and transmitting CSI information according to the uniformly numbered PUCCH format 2x resource.
  • the PUCCH format 1x includes at least PUCCH format 1 and format 1a; wherein PUCCH format 1 and format 1a are used to transmit SR and ACK/NACK information, respectively, and use the same PUCCH structure, that is, the PUCCH format 1x structure.
  • PUCCH format 2x includes at least PUCCH format 2; wherein PUCCH format 2 is used to transmit CSI information, and the PUCCH format 2x structure is used.
  • the method further includes determining a narrowband of the PUCCH for transmitting the ACK/NACK, including:
  • the PUCCH narrowband is implicitly determined by enhancing the downlink control channel (EPDCCH) narrowband, or the RB resources in the PDSCH narrowband, or the enhanced control channel element (ECCE); or, by using downlink control information (DCI, Downlink Control Information) signaling, Or a Radio Resource Control (RRC) signaling or a Random Access Response (RAR) message explicitly notifies the PUCCH narrowband. among them,
  • Determining the PUCCH format 1x resource in the narrowband of the PUCCH for transmitting the ACK/NACK may include: first, setting a starting offset of the available PUCCH format 1x resource range in the narrowband of the PUCCH, or notifying that the PUCCH is available in the narrowband by using RRC signaling or a RAR message.
  • the initial offset of the PUCCH format 1x resource range then, based on the initial offset, and the ECCE resource, or the RB resources within the narrowband of the PDSCH, and/or DCI and/or RRC signaling, determine the PUCCH for transmitting the ACK/NACK Specific PUCCH format 1x resources within the narrowband.
  • the PUCCH format 1x resource in the narrowband of the PUCCH in which the ACK/NACK is transmitted may be determined according to formula (1):
  • n 2 (O format1x +n 1 )mod Q (1)
  • O format1x is a starting offset of a PUCCH format 1x resource range in a pre-set PUCCH narrowband, or a starting offset of a PUCCH format 1x resource range in a PUCCH narrowband, as notified by RRC signaling or a RAR message;
  • n 2 is an index of a PUCCH format 1x resource in a narrowband of PUCCH for transmitting ACK/NACK;
  • N 1 is one of the following values: ECCE index; group index of the ECCE group where the ECCE is located; index of the ECCE in the ECCE group; RB index in the narrow band of the PDSCH; index notified by DCI signaling or RRC signaling; ECCE The index, the group index of the ECCE group where the ECCE is located, and the index of one of the indexes of the ECCE in the ECCE group and the index notified by DCI signaling or RRC signaling; and the RB index in the narrowband of the PDSCH and the DCI signaling or The sum of the indices of the RRC signaling notifications.
  • the above-mentioned index notified by DCI signaling or RRC signaling is also sometimes referred to as an ACK/NACK resource offset (ARO, ACK/NACK Resource Offset);
  • Q represents the total number of PUCCH format 1x resources available in the narrowband of the PUCCH, and the value is equal to X ⁇ M ⁇ N, where X is the number of available RBs in the narrowband of the PUCCH, and N is the number of available orthogonal codes applicable to the PUCCH format 1x, M Is the number of CSs available;
  • the method further includes: determining, according to the ECCE index, a group index of the ECCE group in which the ECCE is located;
  • the method of the present invention further includes: determining, according to the ECCE index, the ECCE group in which the ECCE is located and the ECCE in the ECCE group in the ECCE group before determining the PUCCH format 1x resource in the narrowband of the PUCCH according to the ECCE.
  • Index in this case, different ECCE groups preferably correspond to different PUCCH narrowbands one-to-one.
  • the PUCCH narrowband for transmitting the ACK/NACK may be implicitly determined by the EPDCCH narrowband, or the PDSCH narrowband, or the PDSCH narrowband intra RB resource, or the ECCE resource; and the PUCCH narrowband available PUCCH format is preset
  • the starting offset of the 1x resource range is fixed to zero.
  • the PUCCH narrowband of the ACK/NACK and the initial offset of the PUCCH format 1x resource range within the PUCCH narrowband may be notified by the RRC message.
  • This The method ensures that the PUCCH format 1x resource range in the narrowband and/or narrowband of the PUCCH can be flexibly adjusted after the RRC connection is established, thereby minimizing the collision with the PUCCH format 1x resources of other UEs, especially reducing the Used for collision or interference between PUCCH format 1x resources before RRC connection setup.
  • the method when determining a PUCCH narrowband for transmitting ACK/NACK according to the ECCE resource, the method includes:
  • the group index of the ECCE group where the ECCE is located is determined according to the ECCE index, and the PUCCH narrowband for transmitting the ACK/NACK is determined according to the group index of the ECCE group where the ECCE is located.
  • the plurality of downlink PDSCH data always uses the same EPDCCH narrowband, the same PDSCH narrowband, the RB resources in the same PDSCH narrowband, and one of the same ECCEs; or
  • a PUCCH narrowband that determines a transmission ACK/NACK according to one of a plurality of downlink subframe PDSCH data is preset.
  • the one of the plurality of downlink subframe PDSCH data is the PDSCH data of the first or last downlink subframe.
  • the method further includes: determining a PUCCH narrowband of the CSI and a PUCCH format 2x resource in the narrowband of the PUCCH; or determining a PUCCH narrowband and a PUCCH format 1x resource for transmitting the SR in the UCI, including: indicating, by using RRC signaling, that the CSI is transmitted.
  • the PUCCH format 2x resource in the narrowband of the PUCCH and the narrowband of the PUCCH, or the PUCCH narrowband in the SR and the PUCCH format 1x in the narrowband of the PUCCH are indicated by RRC signaling.
  • the PUCCH narrowband and the PUCCH format 2x or format in the narrowband of the PUCCH are transmitted by the semi-static RRC signaling. 1x resources are sufficient.
  • system parameters that are preset or that are broadcasted by the eNB to carry the corresponding content may include:
  • PUCCH narrowband number different PUCCH narrowband resources, repeated transmission PUCCH format
  • the initial offset of the 1x resource and one of the following: EPDCCH narrowband, PDSCH narrowband, RB resources within the narrowband of the PDSCH, and the pairing relationship of ECCE and PUCCH narrowband. among them,
  • the number of narrowbands of the PUCCH is preferably 2, and respectively occupy PRB resources located on both sides of the traditional PUSCH region; and start of repeatedly transmitting PUCCH format 1x resources (also referred to as coverage enhanced PUCCH format 1x resources)
  • the offset is used to determine a PUCCH format 1x resource range that can be used for repeated transmission of PUCCH transmissions.
  • the preset number of PUCCH narrowbands or the maximum number of PUCCH narrowbands indicated by system parameters are different.
  • the different TDD subframe configurations correspond to the same PUCCH narrowband number
  • the preset PUCCH narrowband number or the PUCCH narrowband number indicated by the system parameter is determined according to one of all TDD subframe configurations.
  • the preset number of PUCCH narrowbands or the number of PUCCH narrowbands indicated by the system parameters are determined according to the TDD subframe configuration having a larger TDD downlink and uplink subframe ratio in all TDD subframe configurations.
  • different TDD subframe configurations share the same PUCCH narrowband number or the number of PUCCH narrowbands indicated by the system parameters.
  • the method of the present invention further includes:
  • the frequency hopping process is performed according to the obtained PUCCH narrowband frequency hopping granularity.
  • obtaining the narrowband hopping granularity of the PUCCH includes:
  • the PUCCH narrowband hopping granularity is preset; or the PUCCH narrowband hopping granularity is notified to the UE as one of the system parameters of the eNB broadcast; wherein the hopping interval (also called Retuning interval) between different PUCCH narrowbands is equal to the PUCCH narrowband hopping Frequency granularity.
  • the narrowband hopping granularity is the number of subframes that are sustained in determining the transmission within the narrowband of the PUCCH; determining the subframe that can be used as the first transmission of the PUCCH repeated transmission according to the PUCCH narrowband hopping granularity and the following formula:
  • I subfram e represents a subframe index of a subframe that can be used as a first transmission of PUCCH repeated transmission, and the value ranges from 0 to 9 integers
  • I frame represents a wireless location of a subframe that can be used as the first transmission of PUCCH repeated transmission.
  • the index of the frame, G hopping indicates the granularity of the PUCCH narrowband hopping. This way ensures the alignment of PUCCH resources from different UEs in case of repeated transmission, thereby further improving the utilization efficiency of PUCCH resources.
  • frequency hopping may be performed according to a frequency hopping mode of a certain TDD uplink and downlink ratio; or, by broadcasting system
  • the parameter configures the frequency hopping mode used in FDD.
  • the above-mentioned PUCCH narrowband hopping granularity, and the hopping interval between different PUCCH narrowbands may be determined according to the TDD subframe configuration. among them,
  • the PUCCH narrowband hopping granularity is equal to the continuous maximum number of uplink subframes
  • the hopping interval between different PUCCH narrowbands is equal to the continuous maximum non-uplink subframe number, wherein the non-uplink subframe Includes downlink subframes and special subframes.
  • the PUCCH narrowband hopping granularity is equal to 3 or 2
  • the hopping interval between different PUCCH narrowbands is equal to 2 or 3 subframes.
  • the number of repeated transmissions of the available PUCCH according to the narrowband hopping granularity that is, the number of repeated transmissions of the PUCCH under different coverage enhancement levels or repetition levels.
  • the number of PUCCH repetitions under different coverage enhancement levels may be a multiple of 5 (sum of different frequency hopping granularity). In this way, the alignment of PUCCH resources from different UEs in the case of repeated transmission is ensured, thereby further improving the utilization efficiency of PUCCH resources.
  • the method for transmitting the UCI in the step 101 includes: determining a time domain spreading code of the PUCCH format 1x resource by using RRC/DCI signaling, and determining a time domain spreading code of the repeatedly transmitted PUCCH format 2x resource by using RRC signaling; The code transmits UCI.
  • the time domain spreading code of the PUCCH format 1x resource is determined, and the time domain spreading code of the PUCCH format 2x resource that is determined to be repeatedly transmitted includes:
  • the time domain spreading granularity of the time domain spreading code is a time slot, and the length is 2 time slots;
  • the time domain spreading granularity of the time domain spreading code is a subframe and the length is equal to the PUCCH narrowband frequency hopping granularity.
  • the PUCCH format 1x resource and the PUCCH format 2x resource carried by all the available RBs in the narrowband of the PUCCH are uniformly numbered according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively, and the PUCCH format 1x resource according to the unified number is used.
  • FIG. 2(a) is a schematic diagram of the unified numbering of PUCCH format 1x resources according to an embodiment of the present invention. As shown in FIG.
  • the RB bearer index with index 0 is 0 to (M ⁇ N-1) M ⁇ N PUCCH format 1x resources, and the RB bearer index with index 1 is M ⁇ N to (2 ⁇ M).
  • FIG. 2(b) is a schematic diagram of unified numbering of PUCCH format 2x resources in the embodiment of the present invention, as shown in FIG. 2(b), when according to the PUCCH format 2x structure,
  • the RB bearer index with index 0 is 0 to (M-1) M PUCCH format 2x resources
  • the RB bearer index with index 1 is M to (2 ⁇ M-1) M PUCCH format 2x resources
  • the index of the (X-1) RB bearer index is (X-1) ⁇ M to (X ⁇ M-1) M PUCCH format 2x resources.
  • the different PUCCH format 1x resources carried in the same RB are distinguished by different cyclic shifts (CS, Cyclic Shift) in the frequency domain and/or different orthogonal codes in the time domain, and different PUCCH formats 2x located in the same RB. Resources are distinguished from each other by different CSs in the frequency domain.
  • the cyclic shift CS refers to a pseudo length of 12 (ie, the number of subcarriers included in one RB frequency domain).
  • a cyclic shift of a random sequence (eg, based on computer search generation).
  • M is the available CS number, and is applicable to both the PUCCH format 1x and the PUCCH format 2x.
  • M is a positive integer less than or equal to 12, and usually M takes one of three integers of 12, 6, and 4;
  • the number of available orthogonal codes (OC, Orthogonal Code) is only applicable to PUCCH format 1x.
  • the value of N is fixed at 3, depending on the type of cyclic prefix (CP, Cyclic Prefix), the above orthogonal code
  • the length can be equal to 4 or 3.
  • the number of PUCCH format 1x resources carried in each available RB resource is the product of the number of available CSs and the number of available OCs applicable only to PUCCH format 1x, that is, a value equal to M ⁇ N, and the PUCCH carried in each available RB resource
  • the format 2x resource number is equal to the available CS number, which is equal to the value of M.
  • the available CS number, M is determined by the cyclic shift interval deltaPUCCH-Shift and determined by equation (2):
  • deltaPUCCH-Shift is notified to the UE as one of the system parameters broadcast by the eNB.
  • the PUCCH format 1x resource and the PUCCH format 2x resource carried by all available RBs in the narrowband of the PUCCH are uniformly numbered according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively, and according to the unified numbered PUCCH format 1x resource and PUCCH format 2x resource
  • the UCI is transmitted, so that the PUCCH format 1x resource and the PUCCH format 2x resource share the same resource region in the narrowband, which reduces the unnecessary PUCCH resource hole to some extent, and improves the efficiency of transmitting UCI on the narrowband PUCCH channel, thereby realizing Efficient transmission of UCI within the new PUCCH narrowband introduced in the uplink.
  • the PUCCH narrowband for transmitting ACK/NACK may be determined in the following manner: Mode 1: implicitly determining the transmission ACK/NACK by using an EPDCCH narrowband, a PDSCH narrowband, an RB resource in a PDSCH narrowband, and an ECCE resource.
  • the PUCCH narrowband; or, the second mode: the PUCCH narrowband for transmitting the ACK/NACK is notified by one of the DCI signaling, the RRC signaling, and the RAR message.
  • mode 1 can save more control overhead; compared with mode 1, mode 2 has higher indication flexibility.
  • FIG. 3 is a schematic diagram of an embodiment of pairing a narrowband of a PDSCH with a narrowband of a PUCCH according to an embodiment of the present invention.
  • a shaded portion of a diagonal grid indicates a narrowband of a PDSCH
  • a table of shaded portions of a diagonal Shows the narrow band of PUCCH.
  • the PUCCH narrowband for transmitting ACK/NACK is determined by using the RB resources in the narrowband of the PDSCH as an example, and it is assumed that there are 4 available PDSCH narrowbands in the downlink system bandwidth, and in the uplink system bandwidth.
  • the first PDSCH narrowband 11 and the third PDSCH narrowband 13 are paired with the first PUCCH narrowband 21, wherein the second PDSCH narrowband 12 and the fourth PDSCH narrowband 14, and the second PUCCH narrowband 22 Pair it. That is, when PDSCH data is transmitted in the first PDSCH narrowband 11 or the third PDSCH narrowband 13, the corresponding ACK/NACK data is transmitted in the above-described first PUCCH narrowband 21, similarly, when the PDSCH data is in the second PDSCH narrowband 12 or the fourth When the PDSCH narrowband 14 is transmitted, the corresponding ACK/NACK data is transmitted in the second PUCCH narrowband 22 described above.
  • the ECCE described herein is preferably the first ECCE occupied by the EPDCCH for scheduling PDSCH data; the RB in the narrowband of the PDSCH is preferably the first RB resource occupied by the PDSCH data.
  • FIG. 4 is a schematic diagram of an embodiment of using the PUCCH narrowband frequency hopping in the case of FDD and PUCCH repeated transmission.
  • the shaded hatching indicates the first UCI data
  • the oblique grid shading indicates the second UCI data
  • the snowflake point The shaded portion represents the third UCI data.
  • acquiring the PUCCH narrowband frequency hopping granularity includes: presetting the PUCCH narrowband frequency hopping granularity or notifying the UE as a system parameter of the eNB broadcast.
  • the Retuning interval between different PUCCH narrowbands is equal to the PUCCH narrowband hopping granularity. For example, as shown in FIG.
  • the first UCI data first occupies 4 consecutive subframes of the first PUCCH narrowband, and after 4 times of the Retuning interval of the duration of the subframe, occupies 4 consecutive subframes of the second PUCCH narrowband, similarly, the second UCI data.
  • the contiguous 4 subframes of the second PUCCH narrowband are occupied first, and after the Retuning interval of 4 subframe durations, the consecutive 4 subframes of the first PUCCH narrowband are occupied.
  • the consecutive 4 subframes in the first PUCCH narrowband as the first UCI data and the second UCI data Retuning interval are occupied by the third UCI data.
  • a PUCCH narrowband is determined by one of an OFDM resource in an NPDCCH narrowband, a PDSCH narrowband, a PDSCH narrowband, and an ECCE resource, and an ACK/NACK resource corresponding to one uplink subframe in a PDSCH data of a plurality of downlink subframes
  • the multiple downlink PDSCH data is always used in the same EPDCCH narrowband, the same PDSCH narrowband, the same PDSCH narrowband RB resource, and one of the same ECCE; or, preset in the PDSCH data according to the multiple downlink subframes A narrow band of PUCCH that determines the transmission of ACK/NACK.
  • Table 1 shows the configuration of uplink and downlink subframes in different TDD subframe configurations (0 to 6).
  • the one of the plurality of downlink subframe PDSCH data is the PDSCH data of the first or last downlink subframe.
  • FIG. 5 is a schematic diagram of an embodiment of determining a position of a narrowband of a PUCCH in a case of a TDD subframe configuration 2 according to an embodiment of the present invention. As shown in FIG. 5, a TDD subframe configuration 2 is taken as an example, and a subframe index in a radio frame is assumed.
  • the downlink subframes of 4, 6, and 8 actually carry PDSCH data, as shown by the hatched portion in FIG. 5, and the above three downlink PDSCH data simultaneously correspond to the uplink subframe in which the subframe index is 2 in the next radio frame.
  • the S in the middle represents a special subframe and belongs to a downlink subframe.
  • the PUCCH narrowband for transmitting the ACK/NACK on the uplink subframe with the subframe index of 2 in the next radio frame may be determined according to the PDSCH data actually carried by the downlink subframe with the subframe index of 4 or 8 in the radio frame, and optionally
  • the EPDCCH narrowband, the PDSCH narrowband, the RB resources in the PDSCH narrowband, and the PUCCH in the narrowband of the PDSCH, which are related to the PDSCH data actually carried by the downlink subframe whose subframe index is 4 or 8, and the PUCCH in which the ACK/NACK is transmitted is determined.
  • Narrow band the PUCCH narrowband for transmitting the ACK/NACK on the uplink subframe with the subframe index of 2 in the next radio frame
  • the PDSCH data of different downlink subframes corresponds to the ACK/NACK resources of one uplink subframe.
  • the PUCCH format 1x resource determining method for ACK/NACK reporting under the relevant TDD may be determined along the PUCCH format 1x resource in the PUCCH narrowband by a preliminary analysis in conjunction with the related protocol.
  • FIG. 6 is a schematic diagram of an embodiment of using a PUCCH narrowband frequency hopping in the case of a TDD subframe configuration 1 and a PUCCH repetition transmission.
  • a PUCCH narrowband hopping granularity and a Retuning interval are determined according to a TDD subframe configuration, where For the TDD subframe configuration 0 to 5, the PUCCH narrowband hopping granularity is equal to the continuous maximum number of uplink subframes, and the Retuning interval between different narrowbands is equal to the continuous maximum non-uplink subframe number, wherein the non-uplink subframe includes the downlink subframe and Special subframe.
  • the PUCCH narrowband hopping granularity is equal to the continuous maximum number of uplink subframes
  • the Retuning interval between different narrowbands is equal to the continuous maximum non-uplink subframe number, wherein the non-uplink subframe includes the downlink subframe and Special subframe.
  • the hatched portion indicates the first PUCCH narrow band
  • the oblique hatched portion indicates the second PUCCH narrow band.
  • the TDD subframe configuration 1 is taken as an example, and it is assumed that there are two PUCCH narrow bands in the system bandwidth range. That is, the first PUCCH narrowband and the second PUCCH narrowband; the consecutive maximum uplink subframe number is 2 and the continuous maximum non-uplink subframe number is 3.
  • the PUCCH narrowband frequency hopping granularity is 2 subframes, and between different narrowbands
  • the Retuning interval is 3 subframes. Specifically, as shown in FIG.
  • the UCI data first occupies the first PUCCH narrowband of two consecutive uplink subframes with the subframe index of 2 and 3 in the radio frame, and after the Retuning interval of three subframe durations, the radio intraframe is occupied.
  • the second PUCCH narrowband of the consecutive 2 uplink subframes of the frame index is 7 and 8, and after the Retuning interval of 3 subframe durations, the consecutive 2 uplink subframes of the subframes 2 and 3 in the next radio frame are occupied.
  • the first PUCCH narrow band is 7 and 8
  • the PUCCH narrowband hopping granularity is equal to 3 or 2
  • the Retuning interval between different narrowbands is equal to 2 or 3 subframes.
  • the above-mentioned PUCCH narrowband frequency hopping party of the embodiment of the present invention The formula provides sufficient PUCCH frequency diversity gain, thereby reducing the number of PUCCH repetitions required in determining the coverage level.
  • the above-described PUCCH narrowband frequency hopping method of the present invention simultaneously improves the utilization efficiency of PUCCH resources.
  • a time domain spreading code for determining a PUCCH format 1x resource by RRC or DCI signaling is described in detail, and a time domain extension of a PUCCH format 2x resource for repeated transmission is determined by RRC signaling.
  • the time domain spreading granularity of the time domain spreading code is a time slot and the length is 2 (the number of time slots in the subframe), and FIG. 7(a) is the existing PUCCH transmission format of the present invention.
  • FIG. 7(a) A schematic diagram of a first embodiment of a superposed time domain spreading code, as shown in FIG. 7(a), for any determined PUCCH format 1x resource carried in subframes x and RBy, by two in the PUCCH format 1x resource
  • Different time-domain spreading codes of length 2 are superimposed on the time slot, specifically: [+1, +1] and [+1, -1], so that different uplink control data occupying the same PUCCH format 1x resource can be further different.
  • the time domain spreading codes are distinguished from each other, so that the capacity of the PUCCH format 1x resources in the narrowband of the PUCCH is further expanded.
  • FIG. 7(b) is a schematic diagram of a second embodiment of superimposing a time domain spreading code on an existing PUCCH transmission format according to the present invention. As shown in FIG. 7(b), it is assumed that a PUCCH narrowband frequency hopping granularity is 4 subframes and corresponds to a sub-frame.
  • FIG. 7(b) is an example in which two different uplink control data occupying the same PUCCH format 1x resource can be further distinguished by different time domain spreading codes, so that the capacity of the PUCCH format 1x resource in the PUCCH narrowband is also obtained. Further expansion.
  • the time domain spreading granularity of the time domain spreading code is a subframe and the length is equal to the PUCCH narrowband frequency hopping granularity. Still as shown in FIG. 7(b), it is assumed that the PUCCH narrowband hopping granularity is 4 subframes and corresponds to subframe x to subframe x+3, so the length of the time domain spreading code is 4 subframes; x to subframe Any determined PUCCH format 2x resource of x+3 and RB y, by superimposing different time domain spreading codes of length 4 on 4 subframes of the PUCCH format 2x resource, specifically:
  • FIG. 7(b) is an example in which two different uplink control data occupying the same PUCCH format 1x resource can be further distinguished by different time domain spreading codes, so that the capacity of the PUCCH format 2x resource in the PUCCH narrowband is also obtained. Further expansion.
  • the PUCCH frequency hopping in the embodiment of the present invention refers to frequency hopping of the narrowband of the PUCCH, which does not prevent frequency hopping in the narrow band of the PUCCH.
  • 8 is a schematic diagram of frequency hopping in a narrowband of a PUCCH according to the present invention. As shown in FIG. 8, it is assumed that a PUCCH narrowband hopping granularity is 4 subframes and corresponds to a subframe x to a subframe x+3, and is carried in a subframe x. To any determined PUCCH format 1x or format 2x resource of subframe x+3, different physical resource blocks PRB may be occupied in different subframes. Specifically, as shown by the shaded hatched portion in FIG.
  • the PRB of the highest index in subframe x and subframe x+2 is occupied, and the PRB of the lowest index in subframe x+1 and subframe x+3 is occupied. That is, the RB resources in the narrowband of the embodiment of the present invention may optionally refer to logical RB resources, and the logical RB resources of the same index may be mapped to different physical PRB resources in different time slots or subframes.
  • the PUCCH narrowband frequency hopping method in the embodiment of the present invention is also applicable to the frequency hopping of the PDSCH and/or the PUSCH narrowband.
  • the PUSCH and PUCCH have the same frequency hopping granularity.
  • the frequency hopping mode in a certain TDD uplink and downlink configuration may be preset to perform frequency hopping; or The frequency hopping mode used under FDD is configured by the broadcast system parameters.
  • 9 is a schematic diagram of an embodiment of performing PUCCH narrowband frequency hopping according to a frequency hopping mode in TDD subframe configuration 1 under FDD according to the present invention.
  • the shaded hatched portion indicates a first PUCCH narrowband, and a diagonal box shaded portion. Representing the second PUCCH narrowband, as shown in FIG.
  • the FDD is in accordance with the frequency hopping in the TDD subframe configuration1.
  • the mode performs frequency hopping of the narrowband of the PUCCH.
  • the UCI data first occupies the first PUCCH narrowband of consecutive 2 subframes of the intraframe index of the radio frame 2 and 3, and skips after 3 subframe durations.
  • the second PUCCH narrowband of consecutive two subframes with the subframe index of 7 and 8 in the radio frame is occupied, and after the hopping interval of three subframe durations, the subframe index of the next radio frame is occupied by 2 and 3.
  • the first PUCCH narrow band of consecutive 2 subframes although the subframes of indices 0, 1, 4, 5, 6, and 9 within any radio frame also belong to the uplink subframe, they are not used for repeated transmission of the PUCCH. This method facilitates the uniform PUCCH narrowband frequency hopping design of FDD and TDD systems.
  • FIG. 10 is a schematic structural diagram of a device for implementing uplink control information transmission, and as shown in FIG. 10, at least a first processing module and a second processing module;
  • the first processing module is configured to, according to the PUCCH structure, number the PUCCH resources carried by the available resource blocks (RBs) in the narrowband of the PUCCH;
  • the second processing module is configured to transmit the UCI according to the numbered PUCCH resource.
  • the PUCCH structure includes, but is not limited to, a PUCCH format 1x structure and a PUCCH format 2x structure.
  • the UCI includes HARQ acknowledgement ACK/NACK, SR information, and CSI information.
  • the first processing module is configured to: perform a unified numbering of the PUCCH format 1x resource and the PUCCH format 2x resource carried by the available RBs in the narrowband of the PUCCH according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively;
  • the first processing module is further configured to: determine the number of resources of the available PUCCH format 1x structure and the number of resources of the available PUCCH format 2x structure. Is set to:
  • delta PUCCH-Shift may be notified to the UE by one of system parameters broadcasted by the eNB, N being a positive integer greater than 1, optionally N may be equal to 3 or 4.
  • the second processing module is further configured to: determine a PUCCH narrowband for transmitting the ACK/NACK, and set to: implicitly determine a PUCCH narrowband by using one of an EPDCCH narrowband, an RB resource in a narrowband of the PDSCH, and an ECCE resource; or, by using DCI signaling One of the RRC signaling, and the RAR message explicitly notifies the PUCCH narrowband.
  • the second processing module is further configured to: determine a PUCCH narrowband of the CSI to be transmitted and a PUCCH format 2x resource in the narrowband of the PUCCH; or determine a PUCCH narrowband and a PUCCH format 1x resource for transmitting the SR in the UCI, which is set to: pass RRC signaling Indicates a PUCCH narrowband and a narrowband PUCCH format 2x resource for transmitting CSI; or a PUCCH narrowband and a narrowband PUCCH format 1x resource for transmitting SR by RRC signaling.
  • the second processing module is further configured to: obtain a PUCCH narrowband frequency hopping granularity; perform frequency hopping processing according to the obtained PUCCH narrowband frequency hopping granularity. . Is set to:
  • the narrowband frequency hopping granularity performs frequency hopping processing.
  • the second processing module is further configured to: determine a time domain spreading code of the PUCCH format 1x resource by using RRC/DCI signaling, and determine a time domain spreading code of the PUCCH format 2x resource that is repeatedly transmitted by using RRC signaling;
  • the time domain spreading code transmits UCI. Is set to:
  • the time domain spreading granularity of the time domain spreading code is a time slot, and the length is 2 time slots; or, for the PUCCH format 1x resource of repeated transmission and the PUCCH format 2x resource of repeated transmission,
  • the time domain spreading granularity of the domain spreading code is a subframe and the length is equal to the PUCCH narrowband frequency hopping granularity.
  • the UCI is transmitted according to the time domain spreading code.
  • the apparatus for implementing the uplink control information in the embodiment of the present invention may be disposed on the terminal side or on the base station side.
  • the embodiment of the invention further provides a computer readable storage medium, which stores a computer executable finger
  • the computer executable instructions are for performing the above transfer method.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the method and the device for transmitting the uplink control information in the embodiment of the present invention uniformly number the PUCCH format 1x resource and the PUCCH format 2x resource carried by all available RBs in the narrowband of the PUCCH according to the PUCCH format 1x structure and the PUCCH format 2x structure, respectively.
  • the UCI is transmitted according to the PUCCH format 1x resource and the PUCCH format 2x resource, and the PUCCH format 1x resource and the PUCCH format 2x resource share the same resource region in the narrowband of the PUCCH, thereby reducing unnecessary PUCCH resource holes to a certain extent.
  • the efficiency of transmitting UCI in the narrow band of PUCCH is improved, thereby achieving efficient transmission of UCI in the new PUCCH narrowband introduced in the uplink.

Abstract

一种上行控制信息的传输方法及装置，包括按照PUCCH结构，对PUCCH窄带内可用资源块(RB)承载的PUCCH资源进行编号；根据编号之后的PUCCH资源传输UCI。其中，PUCCH结构包括但不限于PUCCH格式1x结构和PUCCH格式2x结构。该传输方法和装置通过分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内所有可用的RB所承载的PUCCH格式1x资源和PUCCH格式2x资源统一编号，并且根据统一编号之后的PUCCH格式1x资源和PUCCH格式2x资源传输UCI，使PUCCH格式1x资源和PUCCH格式2x资源共享PUCCH窄带内相同的资源区域。

Description

一种实现上行控制信息的传输方法及装置 技术领域
本申请涉及但不限于长期演进(LTE)技术。
背景技术
机器类型通信(MTC，Machine Type Communication)或机器到机器(M2M，Machine to Machine)的用户设备(UE，User Equipment)是现阶段物联网的主要应用形式。低功耗/低成本是其可大规模应用的重要保障。
目前，市场上部署的M2M设备主要是基于全球移动通信(GSM，Global System of Mobile communication)系统的。近年来，由于长期演进(LTE，Long Term Evolution)系统的频谱效率更高，以及越来越多的移动运营商已经确定LTE作为未来宽带无线通信系统的演进方向，所以，基于LTE的M2M多种类数据业务也将更具吸引力。
用户设备(包括MTC UE)的成本主要来自两部分：基带处理部分和射频部分。减小UE上行和/或下行的传输带宽(包括基带和射频带宽)是降低MTC UE成本的一种非常有效的方式，比如，设置所有MTC UE上行和/或下行传输带宽只能为1.4MHz等窄带带宽(即使系统带宽远超过1.4MHz)。除了上述降带宽的方法以外，以下方式也可以选择用于进一步降低MTC UE成本，比如：单接收天线、减少发射功率、减少最大传输块大小(TBS，Transport Block Size)等。
由于一些MTC UE是被安装在住宅的地下室，或者被铝合金窗、或传统厚墙建筑结构所遮蔽的位置，这些MTC UE在射频接口上会经历相当严重的穿透损耗。为了确保上述MTC UE能进行正常的数据传输，需要增强上述MTC UE的覆盖能力。其中，增强的信道类型包括：物理上行或下行共享信道(PUSCH/PDSCH，Physical Uplink/Downlink Shared Channel)以及物理上行或下行控制信道(PUCCH/PDCCH，Physical Uplink/Downlink Control Channel)等。其中，PDSCH覆盖增强包括系统信息块(SIB，System  Information Block)数据、寻呼消息的覆盖增强，以及单播业务数据的覆盖增强。为了积累更多的能量以改善覆盖，重复传输(即一次传输通常占用多个子帧)的方法通常被用于实现各种信道类型的传输增强。
在相关的LTE系统中，PUCCH被用于承载上行控制信息(UCI)。其中，UCI包括：混合自动重复请求(HARQ，Hybrid Automatic Repeated Request)确认(ACK/NACK)、调度请求(SR，Scheduling Request)以及信道状态信息(CSI，Channel State Information)。
而在MTC UE传输带宽被减少或被限制的情况下，比如：至多在6个连续的物理资源块(PRB，Physical Resource Block)范围内传输数据时，为了确保UCI的正常传输，在上行引入新的窄带PUCCH信道是潜在的解决方案之一。但是，如何在上述窄带PUCCH信道上高效传输UCI数据，目前尚没有相关解决方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供一种上行控制信息的传输方法及装置，能够实现在上行引入的新的PUCCH窄带内的UCI的高效传输。
本发明实施例提供了一种上行控制信息的传输方法，包括：
按照物理上行控制信道PUCCH结构对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号；
根据编号后的PUCCH资源传输上行控制信息UCI。
所述PUCCH结构包括：PUCCH格式1x结构和PUCCH格式2x结构。
所述UCI包括混合自动重复请求HARQ确认ACK/NACK、调度请求SR信息，以及信道状态信息CSI。
所述对PUCCH窄带内可用RB承载的PUCCH资源进行编号包括：
分别按照所述PUCCH格式1x结构和PUCCH格式2x结构，对所述PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资 源进行统一编号。
在所述按照PUCCH结构对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号的步骤之前，该方法还包括：确定可用的所述PUCCH格式1x结构的资源数和可用的所述PUCCH格式2x结构的资源数。
所述确定可用的所述PUCCH格式1x结构的资源数的步骤包括：
根据循环移位间隔delta PUCCH-Shift和可用的正交码OC个数N，确定每个可用RB资源内的所述可用的PUCCH格式1x资源数；
所述确定可用的所述PUCCH格式2x结构的资源数的步骤包括：
根据delta PUCCH-Shift确定每个可用RB资源内的所述可用的PUCCH格式2x资源数；
其中，delta PUCCH-Shift通过作为基站广播的系统参数之一通知给终端，所述N为大于1的正整数。
所述N等于3。
所述根据编号后的PUCCH资源传输UCI的步骤包括：
根据所述统一编号后的PUCCH格式1x资源传输所述UCI中的ACK/NACK和SR信息，根据所述统一编号后的PUCCH格式2x资源传输所述UCI中的CSI信息。
所述传输UCI的步骤之前，该方法还包括：确定传输ACK/NACK的所述PUCCH窄带。
所述确定传输ACK/NACK的PUCCH窄带的步骤包括：
通过增强下行控制信道EPDCCH窄带、PDSCH窄带内的RB资源、以及增强的控制信道单元ECCE中的一个隐式地确定所述PUCCH窄带；
或者，通过下行控制信息DCI信令、射频资源控制RRC信令、以及随机接入响应RAR消息中的一个显式地通知PUCCH窄带。
该方法还包括：确定传输所述ACK/NACK的PUCCH窄带内的PUCCH格式1x资源。
所述确定传输所述ACK/NACK的PUCCH窄带内的PUCCH格式1x资 源的步骤包括：
预先设置PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，或者，通过RRC信令或RAR消息通知PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；
再根据得到的起始偏置，以及ECCE资源、PDSCH窄带内的RB资源、DCI信令、和RRC信令中的一个或多个，确定传输所述ACK/NACK的所述PUCCH窄带内的PUCCH格式1x资源。
根据下列公式确定所述传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源：
n2＝(Oformat1x+n1)modQ；
其中，mod为取余数运算符；
Oformat1x为预先设置，或通过RRC信令或RAR消息通知的所述PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；
n2为所述传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源的索引；
n1为以下取值中的一个：ECCE索引；ECCE所在ECCE组的组索引；ECCE在所在ECCE组内的索引；PDSCH窄带内的RB索引；或者通过DCI信令或RRC信令通知的索引；ECCE索引、ECCE所在ECCE组的组索引、以及ECCE在所在ECCE组内的索引中的一个与通过DCI信令或RRC信令通知的索引之和；以及PDSCH窄带内的RB索引与通过DCI信令或RRC信令通知的索引之和；
Q表示所述PUCCH窄带内可用的PUCCH格式1x资源总数。
当所述n1为ECCE所在ECCE组的组索引时，在所述根据ECCE确定PUCCH窄带内的PUCCH格式1x资源的步骤之前，还包括：
根据所述ECCE索引确定ECCE所在的ECCE组的组索引；
当所述n1为ECCE在所在ECCE组内的索引时，在所述根据ECCE确定PUCCH窄带内的PUCCH格式1x资源的步骤之前，还包括：
根据所述ECCE索引确定ECCE所在的ECCE组和ECCE在所在ECCE 组内的索引，此时，不同ECCE组与不同PUCCH窄带一一对应。
在RRC连接建立之前，所述确定传输ACK/NACK的PUCCH窄带的步骤包括：
通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内RB资源、以及ECCE资源中的一个隐式确定所述传输ACK/NACK的PUCCH窄带；
并且所述PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置为预先设置的，取值固定为0。
在RRC连接建立之后，所述确定传输ACK/NACK的PUCCH窄带的步骤包括：
通过RRC消息通知所述传输ACK/NACK的PUCCH窄带和PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置。
当根据所述ECCE资源确定所述传输ACK/NACK的PUCCH窄带时，包括：
根据所述ECCE索引确定所述ECCE所在ECCE组的组索引，再根据所述ECCE所在的ECCE组的组索引确定所述传输ACK/NACK的PUCCH窄带。
对于时分双工TDD系统，在所述通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、以及ECCE资源中的一个隐式地确定PUCCH窄带的步骤中，以及在多个下行子帧PDSCH数据对应一个上行子帧的ACK/NACK资源的情况下，
所述多个下行PDSCH数据始终使用相同EPDCCH窄带、或相同PDSCH窄带、或相同PDSCH窄带内的RB资源、或相同ECCE；
或者，预先设置根据所述多个下行子帧PDSCH数据中的一个确定传输ACK/NACK的PUCCH窄带；其中，所述多个下行子帧PDSCH数据中的一个是首个或最后一个下行子帧的PDSCH数据。
所述传输UCI的步骤之前，该方法还包括：确定传输所述UCI中的CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源。
所述传输所述UCI中的CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源的步骤包括：
通过RRC信令指示所述传输CSI的PUCCH窄带和所述PUCCH窄带内的PUCCH格式2x资源；
或者，通过RRC信令指示所述传输SR的PUCCH窄带和所述PUCCH窄带内的PUCCH格式1x资源。
以下信息为预先设置，或者将其作为基站广播的系统参数之一通知给终端：
所述PUCCH窄带数目，不同PUCCH窄带所占资源，重复传输PUCCH格式1x资源起始偏置，以及下列信息之一：所述EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、以及ECCE与PUCCH窄带的配对关系。
对于频分双工FDD和TDD系统，预先设置的PUCCH窄带数或通过系统参数指示的最大PUCCH窄带数不同。
对于TDD系统，不同的TDD子帧配置对应相同的PUCCH窄带数，根据所有TDD子帧配置中的一个确定所述预先设置的PUCCH窄带数或通过系统参数指示的PUCCH窄带数。
在所述传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，该方法还包括：
获取PUCCH窄带跳频粒度；
根据获得的PUCCH窄带跳频粒度执行跳频处理。
对于TDD和FDD系统，根据所述窄带跳频粒度确定可用的所述PUCCH的重复传输次数。
对于FDD系统，所述获取PUCCH窄带跳频粒度的步骤包括：
预先设置PUCCH窄带跳频粒度；
或者，将PUCCH窄带跳频粒度作为基站广播的系统参数之一通知给终端；其中，不同PUCCH窄带之间的跳频间隔等于PUCCH窄带跳频粒度。
所述窄带跳频粒度为在确定PUCCH窄带内的传输所持续的子帧数；
根据PUCCH窄带跳频粒度和以下公式确定可用作所述PUCCH重复传输 的首次传输的子帧：
(10×Iframe+Isubframe)mod Ghopping＝0；
其中，Isubframe表示所述可用作所述PUCCH重复传输的首次传输的子帧的子帧索引，取值范围是0至9的整数，Iframe表示所述可用作所述PUCCH重复传输的首次传输的子帧所在无线帧的索引，以及，Ghopping表示PUCCH窄带跳频粒度。
对于FDD系统，在所述PUCCH重复传输的情况下，预先设置按照确定TDD上下行配置的跳频模式进行所述跳频处理；或者，通过广播的系统参数配置FDD下所使用的跳频模式进行所述跳频处理。
对于TDD系统，所述获取PUCCH窄带跳频粒度的步骤包括：
根据TDD子帧配置确定所述PUCCH窄带跳频粒度，以及不同PUCCH窄带之间的跳频间隔。
所述根据TDD子帧配置确定所述PUCCH窄带跳频粒度，以及不同PUCCH窄带之间的跳频间隔的步骤包括：
对于TDD子帧配置0至5的情况，所述PUCCH窄带跳频粒度等于连续的最大上行子帧数，不同PUCCH窄带之间的跳频间隔等于连续的最大非上行子帧数，其中，非上行子帧包括下行子帧和特殊子帧；
对于TDD子帧配置6的情况，所述PUCCH窄带跳频粒度等于3或2，不同PUCCH窄带之间的跳频间隔等于2或3个子帧。
所述传输UCI的步骤中，传输所述UCI的方式包括：通过RRC或DCI信令确定PUCCH格式1x资源的时域扩展码，以及，通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输所述UCI。
所述确定PUCCH格式1x资源的时域扩展码，以及确定重复传输的PUCCH格式2x资源的时域扩展码的步骤包括：
对于非重复传输的PUCCH格式1x资源，所述时域扩展码的时域扩展粒度是时隙，长度为2个时隙；
对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x资源，所述时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。
本发明还提供了一种上行控制信息的传输装置，包括第一处理模块和第二处理模块；其中，
第一处理模块，设置为按照PUCCH结构，对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号；
第二处理模块，设置为根据编号后的PUCCH资源传输UCI。
其中，所述PUCCH结构包括：PUCCH格式1x结构和PUCCH格式2x结构。
所述UCI包括：混合自动重复请求HARQ确认ACK/NACK、调度请求SR信息以及信道状态信息CSI。
所述第一处理模块是设置为：分别按照所述PUCCH格式1x结构和PUCCH格式2x结构，对所述PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资源进行统一编号；相应地，
所述第二处理模块是设置为：根据统一编号后的PUCCH格式1x资源传输ACK/NACK和SR信息，根据统一编号后的PUCCH格式2x资源传输CSI信息。
所述第一处理模块还设置为：确定可用的所述PUCCH格式1x结构的资源数和可用的所述PUCCH格式2x结构的资源数。
所述第一处理模块是设置为：
根据delta PUCCH-Shift和可用的OC个数N，确定每个可用RB资源内的所述可用的PUCCH格式1x资源数；根据delta PUCCH-Shift，确定每个可用RB资源内的所述可用的PUCCH格式2x资源数；
其中，delta PUCCH-Shift通过作为基站广播的系统参数之一通知给终端，N为大于1的正整数。
所述第二处理模块还设置为：确定传输ACK/NACK的所述PUCCH窄带。
所述第二处理模块具体设置为：通过EPDCCH窄带、PDSCH窄带内的RB资源、ECCE资源中的一个隐式地确定PUCCH窄带；或者，通过DCI信令、RRC信令、以及RAR消息中的一个显式地通知PUCCH窄带。
所述第二处理模块还设置为：确定传输CSI的PUCCH窄带和PUCCH 窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源。
所述第二处理模块具体设置为：通过RRC信令指示传输CSI的PUCCH窄带和窄带内的PUCCH格式2x资源；或者通过RRC信令指示传输SR的PUCCH窄带和窄带内的PUCCH格式1x资源。
在所述第二模块传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，第二处理模块还设置为：获取PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。
所述第二处理模块具体设置为：
预先设置PUCCH窄带跳频粒度；或者，将PUCCH窄带跳频粒度作为基站广播的系统参数之一通知给终端；其中，不同PUCCH窄带之间的跳频间隔等于PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。
在所述第二处理模块传输UCI时，所述第二处理模块还设置为：通过RRC或DCI信令确定PUCCH格式1x资源的时域扩展码，以及，通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输UCI。
所述第二处理模块具体设置为：
对于非重复传输的PUCCH格式1x资源，所述时域扩展码的时域扩展粒度是时隙，长度为2个时隙；或者，对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x资源，所述时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度；
根据时域扩展码传输UCI。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述传输方法。
本申请技术方案包括按照PUCCH结构，对PUCCH窄带内可用资源块(RB)承载的PUCCH资源进行编号；根据编号后的PUCCH资源传输UCI。其中，PUCCH结构包括：PUCCH格式1x结构和PUCCH格式2x结构。本 发明通过分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内所有可用的RB所承载的PUCCH格式1x资源和PUCCH格式2x资源统一编号，并根据统一编号后的PUCCH格式1x资源和PUCCH格式2x资源传输UCI，使PUCCH格式1x资源和PUCCH格式2x资源共享PUCCH窄带内相同的资源区域，在一定程度上减少了不必要的PUCCH资源空洞，提高了在PUCCH窄带范围内传输UCI的效率，从而实现了在上行引入的新的PUCCH窄带内的UCI的高效传输。
本发明的其它特征和优点将在随后的说明书中阐述。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例中实现上行控制信息的传输方法的流程图；
图2(a)为本发明实施例中对PUCCH格式1x资源统一编号的示意图；
图2(b)为本发明实施例中对PUCCH格式2x资源统一编号的示意图；
图3为本发明实施例中将PDSCH窄带与PUCCH窄带进行配对的实施例的示意图；
图4为本发明实施例中在FDD且PUCCH重复传输情况下，使用PUCCH窄带跳频的实施例的示意图；
图5为本发明实施例中在TDD子帧配置2的情况下，确定PUCCH窄带的位置的实施例的示意图；
图6为本发明实施例中在TDD子帧配置1且PUCCH重复传输情况下，使用PUCCH窄带跳频的实施例的示意图；
图7(a)为本发明实施例中在已有PUCCH传输格式上叠加时域扩展码的 第一实施例的示意图；
图7(b)为本发明实施例中在已有PUCCH传输格式上叠加时域扩展码的第二实施例的示意图；
图8为本发明实施例中在PUCCH窄带内的跳频的示意图；
图9为本发明实施例中在FDD下按照在TDD子帧配置1情况下的跳频模式进行PUCCH窄带跳频的实施例的示意图；
图10为本发明实施例中实现上行控制信息的传输装置的组成结构示意图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
图1为本发明实施例实现上行控制信息的传输方法的流程图，如图1所示，包括以下步骤：
步骤100：按照PUCCH结构，对PUCCH窄带内可用资源块(RB)承载的PUCCH资源进行编号。
其中，PUCCH结构包括但不限于：PUCCH格式1x结构和PUCCH格式2x结构。UCI包括HARQ确认ACK/NACK、SR信息以及CSI信息。
可选地，本步骤包括：
分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资源进行统一编号。
本步骤之前，还包括确定可用的PUCCH格式1x结构的资源数和可用的PUCCH格式2x结构的资源数，包括：
根据循环移位间隔(delta PUCCH-Shift)和可用的正交码(OC)个数N，确定每个可用RB资源内的可用的PUCCH格式1x资源数；以及，
根据delta PUCCH-Shift，确定每个可用RB资源内的可用的PUCCH格式 2x资源数；
其中，delta PUCCH-Shift可以通过作为基站eNB广播的系统参数之一通知给终端UE，N为大于1的正整数，优选地，N可以等于3。
步骤101：根据编号后的PUCCH资源传输UCI。
可选地，本步骤包括：根据统一编号后的PUCCH格式1x资源传输ACK/NACK和SR信息，以及，根据统一编号后的PUCCH格式2x资源传输CSI信息。
其中，PUCCH格式1x至少包括PUCCH格式1和格式1a；其中，PUCCH格式1和格式1a分别用于传输SR和ACK/NACK信息，并且使用相同的PUCCH结构，即所述PUCCH格式1x结构。以及，PUCCH格式2x至少包括PUCCH格式2；其中，PUCCH格式2用于传输CSI信息，并且使用所述PUCCH格式2x结构。
本步骤之前，还包括确定传输ACK/NACK的PUCCH窄带，包括：
通过增强下行控制信道(EPDCCH)窄带、或PDSCH窄带内的RB资源、或增强的控制信道单元(ECCE)隐式地确定PUCCH窄带；或者，通过下行控制信息(DCI，Downlink Control Information)信令、或射频资源控制(RRC，Radio Resource Control)信令、或随机接入响应(RAR，Random Access Response)消息显示地通知PUCCH窄带。其中，
确定传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源可以包括：首先，预先设置PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，或者，通过RRC信令或RAR消息通知PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；然后，再根据起始偏置，以及ECCE资源、或PDSCH窄带内的RB资源、和/或DCI和/或RRC信令，确定传输ACK/NACK的PUCCH窄带内的具体的PUCCH格式1x资源。
可选地，
可以根据公式(1)确定传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源：
n2＝(Oformat1x+n1)mod Q  (1)
在公式(1)中，mod为取余数运算符；
Oformat1x为预先设置的PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，或通过RRC信令或RAR消息通知的，PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；
n2为传输ACK/NACK的PUCCH窄带内PUCCH格式1x资源的索引；
n1为以下取值中的一个：ECCE索引；ECCE所在ECCE组的组索引；ECCE在所在ECCE组内的索引；PDSCH窄带内的RB索引；通过DCI信令或RRC信令通知的索引；ECCE索引、ECCE所在ECCE组的组索引、以及ECCE在所在ECCE组内的索引中的一个与通过DCI信令或RRC信令通知的索引之和；以及PDSCH窄带内的RB索引与通过DCI信令或RRC信令通知的索引之和。其中，上述通过DCI信令或RRC信令通知的索引有时也被称为ACK/NACK资源偏置(ARO，ACK/NACK Resource Offset)；
Q表示PUCCH窄带内可用的PUCCH格式1x资源总数，取值等于X×M×N，其中，X是PUCCH窄带内可用的RB数，N是适用于PUCCH格式1x的可用的正交码数，M是可用的CS数；
特别地，当n1为ECCE所在ECCE组的组索引时，在根据ECCE确定PUCCH窄带内PUCCH格式1x资源之前，本发明方法还包括：根据ECCE索引确定ECCE所在的ECCE组的组索引；
当n1为ECCE在所在ECCE组内的索引时，在根据ECCE确定PUCCH窄带内的PUCCH格式1x资源之前，本发明方法还包括：根据ECCE索引确定ECCE所在的ECCE组和ECCE在所在ECCE组内的索引，此时，不同的ECCE组优选与不同的PUCCH窄带一一对应。
可选地，在RRC连接建立之前，可以通过EPDCCH窄带、或PDSCH窄带、或PDSCH窄带内RB资源、或ECCE资源隐式确定传输ACK/NACK的PUCCH窄带；以及，预先设置PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，并取值固定为0。
在RRC连接建立之后，可以通过RRC消息通知传输ACK/NACK的PUCCH窄带和PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置。这 种方法确保了在RRC连接建立之后，PUCCH窄带和/或窄带内的PUCCH格式1x资源范围可灵活地被调整，从而尽可能减轻了与其它UE的PUCCH格式1x资源间的冲突，尤其减少了与用于RRC连接建立之前PUCCH格式1x资源之间的冲突或干扰。
其中，当根据ECCE资源确定传输ACK/NACK的PUCCH窄带时，包括：
根据ECCE索引确定ECCE所在ECCE组的组索引，再根据ECCE所在的ECCE组的组索引确定传输ACK/NACK的PUCCH窄带。
需要说明的是，对于TDD系统，在通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、以及ECCE资源中的一个确定PUCCH窄带的步骤中，以及在多个下行子帧PDSCH数据对应一个上行子帧的ACK/NACK资源的情况下，
多个下行PDSCH数据始终使用相同EPDCCH窄带、相同PDSCH窄带、相同PDSCH窄带内的RB资源、以及相同ECCE中的一个；或者，
预先设置根据多个下行子帧PDSCH数据中的一个确定传输ACK/NACK的PUCCH窄带。其中，多个下行子帧PDSCH数据中的一个是首个或最后一个下行子帧的PDSCH数据。
本步骤之前，还包括确定传输CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源，包括：通过RRC信令指示传输CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源，或者，通过RRC信令指示传输SR的PUCCH窄带和PUCCH窄带内的PUCCH格式1x资源。需要说明的是，考虑到CSI或SR的传输通常发生在RRC连接建立之后并且为周期性传输方式，通过半静态RRC信令指示传输CSI或SR的PUCCH窄带和PUCCH窄带内的PUCCH格式2x或格式1x资源是足够的。
本发明实施例中，预先设置的或作为eNB广播的承载相应内容的系统参数可以包括：
PUCCH窄带数目，不同PUCCH窄带所占资源，重复传输PUCCH格式 1x资源的起始偏置，以及下列之一：EPDCCH窄带，PDSCH窄带，PDSCH窄带内的RB资源，以及ECCE与PUCCH窄带的配对关系。其中，
为了避免传统PUSCH区域的资源分段，PUCCH窄带数优选为2，并且分别占用位于传统PUSCH区域两侧的PRB资源；重复传输PUCCH格式1x资源(又称为覆盖增强PUCCH格式1x资源)的起始偏置用于确定可用于重复传输PUCCH传输的PUCCH格式1x资源范围。
可选地，对于频分双工(FDD，Frequency Division Duplex)和时分双工(TDD，Time Division Duplex)系统，预先设置的PUCCH窄带数或通过系统参数指示的最大PUCCH窄带数是不同的。对于TDD系统，不同的TDD子帧配置对应相同的PUCCH窄带数，根据所有TDD子帧配置中的一个确定预先设置的PUCCH窄带数或通过系统参数指示的PUCCH窄带数。例如，根据所有TDD子帧配置中具有较大的TDD下行和上行子帧配比的TDD子帧配置确定预先设置的PUCCH窄带数或通过系统参数指示的PUCCH窄带数。此时，不同的TDD子帧配置共享相同的PUCCH窄带数或通过系统参数指示的PUCCH窄带数。
可选地，
对于FDD，在步骤101中的传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，本发明方法还包括：
获取PUCCH窄带跳频粒度；
根据获得的PUCCH窄带跳频粒度执行跳频处理。
其中，对于FDD系统，获取PUCCH窄带跳频粒度包括：
预先设置PUCCH窄带跳频粒度；或者，将PUCCH窄带跳频粒度作为eNB广播的系统参数之一通知给UE；其中，不同PUCCH窄带之间的跳频间隔(也称为Retuning间隔)等于PUCCH窄带跳频粒度。
可选地，窄带跳频粒度为在确定PUCCH窄带内的传输所持续的子帧数；根据PUCCH窄带跳频粒度和以下公式确定可用作PUCCH重复传输的首次传输的子帧：
(10×Iframe+Isubframe)mod Ghopping＝0；
其中，Isubframe表示可用作PUCCH重复传输的首次传输的子帧的子帧索引，取值范围是0至9的整数，Iframe表示可用作PUCCH重复传输的首次传输的子帧所在无线帧的索引，Ghopping表示PUCCH窄带跳频粒度。这种方式确保了在重复传输情况下，来自不同UE的PUCCH资源的对齐，从而进一步提高了PUCCH资源的利用效率。
对于FDD系统，在PUCCH重复传输的情况下，除了按照FDD所特有的跳频模式进行跳频以外，也可以按照某一TDD上下行配比的跳频模式进行跳频；或者，通过广播的系统参数配置FDD下所使用的跳频模式。
对于TDD，上述PUCCH窄带跳频粒度，以及不同PUCCH窄带之间的跳频间隔可以根据TDD子帧配置确定。其中，
对于TDD子帧配置0至5的情况，PUCCH窄带跳频粒度等于连续的最大上行子帧数，不同PUCCH窄带之间的跳频间隔等于连续的最大非上行子帧数，其中，非上行子帧包括下行子帧和特殊子帧。
对于TDD子帧配置6的情况，PUCCH窄带跳频粒度等于3或2，不同PUCCH窄带之间的跳频间隔等于2或3个子帧。
对于TDD和FDD系统，
根据所述窄带跳频粒度确定可用的所述PUCCH的重复传输次数，即不同覆盖增强等级或重复等级下的PUCCH的重复传输次数。比如，对于TDD子帧配置6的情况，不同覆盖增强等级下的PUCCH重复次数可以是5(不同跳频粒度的和)的倍数。这样，确保了在重复传输情况下，来自不同UE的PUCCH资源的对齐，从而进一步提高了PUCCH资源的利用效率。
本步骤101中传输UCI的方式包括：通过RRC/DCI信令确定PUCCH格式1x资源的时域扩展码，以及通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输UCI。
其中，确定PUCCH格式1x资源的时域扩展码，以及，确定重复传输的PUCCH格式2x资源的时域扩展码包括：
对于非重复传输的PUCCH格式1x资源，时域扩展码的时域扩展粒度是时隙，长度为2个时隙；
对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x，时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。
本发明实施例通过分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内所有可用的RB所承载的PUCCH格式1x资源和PUCCH格式2x资源统一编号，并根据统一编号后的PUCCH格式1x资源和PUCCH格式2x资源传输UCI，使PUCCH格式1x资源和PUCCH格式2x资源共享PUCCH窄带内相同的资源区域，在一定程度上减少了不必要的PUCCH资源空洞，提高了在PUCCH窄带范围内传输UCI的效率，从而实现了在上行引入的新的PUCCH窄带内的UCI的高效传输。
下面结合具体实施例对本发明实施例的方法进行详细描述。
假设PUCCH窄带内所有可用RB数为X个(可选等于PUCCH窄带大小，即所包含的RB数)，并且按照RB索引由低到高(也可以是由高到低)的顺序进行PUCCH格式1x资源或PUCCH格式2x资源的编号。图2(a)为本发明实施例中对PUCCH格式1x资源统一编号的示意图，如图2(a)所示，当按照PUCCH格式1x结构，对上述PUCCH窄带内的X个RB所承载的PUCCH格式1x资源统一编号之后，索引为0的RB承载索引是0至(M×N-1)的M×N个PUCCH格式1x资源，索引为1的RB承载索引是M×N至(2×M×N-1)的M×N个PUCCH格式1x资源，以此类推，最后索引为(X-1)的RB承载索引是[(X-1)×M×N]至(X×M×N-1)的M×N个PUCCH格式1x资源；图2(b)为本发明实施例中对PUCCH格式2x资源统一编号示意图，如图2(b)所示，当按照PUCCH格式2x结构，对上述PUCCH窄带内的X个RB所承载的PUCCH格式2x资源统一编号后，索引为0的RB承载索引是0至(M-1)的M个PUCCH格式2x资源，索引为1的RB承载索引是M至(2×M-1)的M个PUCCH格式2x资源，以此类推，索引为(X-1)的RB承载索引是(X-1)×M至(X×M-1)的M个PUCCH格式2x资源。
承载于相同RB的不同的PUCCH格式1x资源是通过频域上不同的循环移位(CS，Cyclic Shift)和/或时域上不同的正交码相互区分，位于相同RB内的不同PUCCH格式2x资源是通过频域上不同的CS相互区分。其中，上述循环移位CS是指长度为12(即一个RB频域上所包括的子载波数)的伪 随机序列(例如，基于计算机搜索生成)的循环移位。
其中，
上述M是可用的CS数，同时适用于PUCCH格式1x和PUCCH格式2x，对于LTE系统，M是小于或等于12的正整数，通常M取12、6和4三个整数中的一个；上述N是仅适用于PUCCH格式1x的可用的正交码(OC，Orthogonal Code)个数，对于LTE系统，N的取值固定为3，依赖于循环前缀(CP，Cyclic Prefix)类型，上述正交码的长度可以等于4或3。每个可用RB资源内承载的PUCCH格式1x资源数是可用的CS数与仅适用于PUCCH格式1x的可用OC个数的乘积，即等于M×N的值，每个可用RB资源内承载的PUCCH格式2x资源数等于可用的CS数，即等于M的值。可用的CS数即M是根据循环移位间隔deltaPUCCH-Shift并由公式(2)确定的：
Figure PCTCN2015087395-appb-000001
其中，deltaPUCCH-Shift作为eNB广播的系统参数之一通知给UE。
通过分别按照PUCCH格式1x结构和PUCCH格式2x结构对PUCCH窄带内所有可用的RB所承载的PUCCH格式1x资源和PUCCH格式2x资源统一编号，并根据统一编号后的PUCCH格式1x资源和PUCCH格式2x资源传输UCI，使PUCCH格式1x资源和PUCCH格式2x资源共享窄带内相同的资源区域，在一定程度上减少了不必要的PUCCH资源空洞，提高了在窄带PUCCH信道上传输UCI的效率，从而实现了在上行引入的新的PUCCH窄带内的UCI的高效传输。
本发明实施例中，可以按照以下方式确定传输ACK/NACK的PUCCH窄带：方式一：通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、以及ECCE资源中的一个隐式地确定传输ACK/NACK的PUCCH窄带；或者，方式二：通过DCI信令、RRC信令、RAR消息中的一个通知用于传输ACK/NACK的PUCCH窄带。其中，与方式二相比，方式一可以节省更多的控制开销；与方式一相比较，方式二具有更高的指示灵活性。
图3为本发明实施例将PDSCH窄带与PUCCH窄带配对的实施例的示意图，如图3所示，斜方格阴影部分表示PDSCH窄带，以及，斜纹阴影部分表 示PUCCH窄带。本实施例中，以通过PDSCH窄带内的RB资源确定传输ACK/NACK的PUCCH窄带为例，假设在下行的系统带宽范围内共存在4个可用的PDSCH窄带，以及，在上行系统带宽范围内共存在2个可用的PUCCH窄带，其中的第一PDSCH窄带11和第三PDSCH窄带13，与第一PUCCH窄带21配对，其中的第二PDSCH窄带12和第四PDSCH窄带14，与第二PUCCH窄带22进行配对。即当PDSCH数据在第一PDSCH窄带11或第三PDSCH窄带13传输时，相应的ACK/NACK数据是在上述第一PUCCH窄带21传输，类似地，当PDSCH数据在第二PDSCH窄带12或第四PDSCH窄带14传输时，相应ACK/NACK数据是在上述第二PUCCH窄带22传输。
需要说明的是，如果没有特别说明，本文中所述的ECCE优选是用于调度PDSCH数据的EPDCCH所占用的首个ECCE；PDSCH窄带内的RB优选是PDSCH数据所占用的首个RB资源。
图4为本发明在FDD且PUCCH重复传输情况下，使用PUCCH窄带跳频的实施例的示意图，图4中，斜线阴影表示第一UCI数据，斜方格阴影表示第二UCI数据，雪花点阴影部分表示第三UCI数据。对于FDD，在PUCCH重复传输情况下，获取PUCCH窄带跳频粒度包括：预先设置PUCCH窄带跳频粒度或将其作为eNB广播的系统参数通知给UE。其中，不同PUCCH窄带之间的Retuning间隔等于PUCCH窄带跳频粒度。比如，如图4所示，假设，系统带宽范围内存在两个PUCCH窄带即第一PUCCH窄带和第二PUCCH窄带，且PUCCH窄带跳频粒度和不同PUCCH窄带间的Retuning间隔为4个子帧；如图4所示，第一UCI数据首先占用第一PUCCH窄带的连续4个子帧，经过4个子帧持续时间的Retuning间隔后，占用第二PUCCH窄带的连续4个子帧，类似地，第二UCI数据首先占用第二PUCCH窄带的连续4个子帧，经过4个子帧持续时间的Retuning间隔后，占用第一PUCCH窄带的连续4个子帧。其中，第一PUCCH窄带中作为第一UCI数据和第二UCI数据Retuning间隔的连续4个子帧被第三UCI数据占用。图4所示的确定PUCCH窄带跳频的方式提供了足够的PUCCH频率分集增益，从而减少了在确定重复等级下需要的PUCCH重复次数，此外，这种方式同时提 高了PUCCH资源的利用效率。考虑到延迟容忍特征和时间分集，等于跳频粒度的Retuning间隔同时确保了PUCCH跳频资源的对齐，从而减轻了调度器复杂度。
对于TDD，在通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源，以及ECCE资源中的一个确定PUCCH窄带，以及在多个下行子帧的PDSCH数据对应一个上行子帧的ACK/NACK资源的情况下，多个下行PDSCH数据始终使用相同的EPDCCH窄带、相同的PDSCH窄带、相同的PDSCH窄带内的RB资源，以及或相同ECCE中的一个；或者，预先设置根据多个下行子帧PDSCH数据中的一个确定传输ACK/NACK的PUCCH窄带。
表1 为不同TDD子帧配置(0至6)下的上下行子帧配置情况。
Figure PCTCN2015087395-appb-000002
表1
其中，多个下行子帧PDSCH数据中的一个是首个或最后一个下行子帧的PDSCH数据。图5为本发明实施例在TDD子帧配置2的情况下，确定PUCCH窄带的位置的实施例的示意图，如图5所示，以TDD子帧配置2为例，假设在无线帧内子帧索引为4、6和8的下行子帧实际承载PDSCH数据，如图5中的斜线阴影部分所示，并且以上3个下行PDSCH数据同时对应于下一个无线帧内在子帧索引为2的上行子帧上的一个ACK/NACK资源，其 中的S表示特殊子帧，且属于下行子帧。这样，在下一个无线帧内子帧索引为2的上行子帧上传输ACK/NACK的PUCCH窄带，可以根据在无线帧内子帧索引为4或8的下行子帧所实际承载的PDSCH数据确定，可选地，是根据与上述子帧索引为4或8的下行子帧所实际承载的PDSCH数据有关的EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源，以及ECCE中的一个确定传输ACK/NACK的PUCCH窄带。
特别地，对于TDD系统，在PDSCH重复传输且PDSCH重复次数远大于PUCCH重复次数的情况下，依赖于调度器实现，不同下行子帧的PDSCH数据对应一个上行子帧的ACK/NACK资源的情况通常可以被避免。此外，经过结合相关协议的初步分析，相关的TDD下用于ACK/NACK报告的PUCCH格式1x资源确定方法可沿用于PUCCH窄带内PUCCH格式1x资源的确定。
图6为本发明在TDD子帧配置1且PUCCH重复传输情况下，使用PUCCH窄带跳频的实施例的示意图，本实施例为根据TDD子帧配置确定PUCCH窄带跳频粒度和Retuning间隔，其中，对于TDD子帧配置0至5，PUCCH窄带跳频粒度等于连续的最大上行子帧数，不同窄带间的Retuning间隔等于连续的最大非上行子帧数，其中，非上行子帧包括下行子帧和特殊子帧。图6中，斜线阴影部分表示第一PUCCH窄带，斜方格阴影部分表示第二PUCCH窄带，如图6所示，以TDD子帧配置1为例，假设系统带宽范围内存在两个PUCCH窄带即第一PUCCH窄带和第二PUCCH窄带；连续的最大上行子帧数为2且连续的最大非上行子帧数为3，此时，PUCCH窄带跳频粒度为2个子帧，以及，不同窄带间的Retuning间隔为3个子帧。具体地，如图6所示，UCI数据首先占用无线帧内子帧索引为2和3的连续2个上行子帧的第一PUCCH窄带，经过3个子帧持续时间的Retuning间隔后，占用无线帧内子帧索引为7和8的连续2个上行子帧的第二PUCCH窄带，再经过3个子帧持续时间的Retuning间隔后，占用下一个无线帧内子帧索引为2和3的连续2个上行子帧的第一PUCCH窄带。
对于TDD子帧配置6，PUCCH窄带跳频粒度等于3或2，不同窄带间的Retuning间隔等于2或3个子帧。本发明实施例的上述PUCCH窄带跳频的方 式提供了足够PUCCH频率分集增益，从而减少了在确定覆盖等级下需要的PUCCH重复次数，此外，本发明上述PUCCH窄带跳频的方式同时提高了PUCCH资源的利用效率。
结合图7(a)和图7(b)，详细描述通过RRC或DCI信令确定PUCCH格式1x资源的时域扩展码，以及，通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码的实施例。其中，
对于非重复传输PUCCH格式1x资源，时域扩展码的时域扩展粒度是时隙且长度为2(子帧内的时隙数)，图7(a)为本发明在已有PUCCH传输格式上叠加时域扩展码的第一实施例的示意图，如图7(a)所示，对于承载于子帧x和RB y的任一确定的PUCCH格式1x资源，通过在PUCCH格式1x资源的两个时隙上叠加不同的长度为2的时域扩展码，具体为：[+1,+1]和[+1,-1]，使占用相同PUCCH格式1x资源的不同上行控制数据可以进一步通过不同的时域扩展码相互区分，这样，PUCCH窄带内PUCCH格式1x资源的容量也得到了进一步的扩展。
对于重复传输PUCCH格式1x资源，时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。图7(b)为本发明在已有PUCCH传输格式上叠加时域扩展码的第二实施例示意图，如图7(b)所示，假设PUCCH窄带跳频粒度为4个子帧且对应于子帧x至子帧x+3，所以时域扩展码的长度为4个子帧；对于承载于子帧x至子帧x+3以及RB y的任一确定的PUCCH格式1x资源，通过在PUCCH格式1x资源的4个子帧上叠加不同的长度为4的时域扩展码，具体为：
[+1,+1,+1,+1]、[+1,-1,-1,+1]、[+1,-1,+1,-1]和[-1,-1,+1,+1]，
图7(b)是以其中两个为例，使占用相同PUCCH格式1x资源的不同上行控制数据可以进一步通过不同的时域扩展码相互区分，这样，PUCCH窄带内PUCCH格式1x资源的容量也得到了进一步的扩展。
对于通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码的情况，时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。仍如图7(b)所示，假设PUCCH窄带跳频粒度为4个子帧且对应于子帧x至子帧x+3，所以时域扩展码的长度为4个子帧；对于承载于子帧x至子帧 x+3以及RB y的任一确定的PUCCH格式2x资源，通过在PUCCH格式2x资源的4个子帧上叠加不同的长度为4的时域扩展码，具体为：
[+1,+1,+1,+1]、[+1,-1,-1,+1]、[+1,-1,+1,-1]和[-1,-1,+1,+1]，
图7(b)是以其中两个为例，使占用相同PUCCH格式1x资源的不同上行控制数据可以进一步通过不同的时域扩展码相互区分，这样，PUCCH窄带内PUCCH格式2x资源的容量也得到了进一步的扩展。
其中，具有相同长度的不同的时域扩展码彼此相互正交。
需要说明的是，本发明实施例中的PUCCH跳频是指PUCCH窄带的跳频，这并不会阻止在PUCCH窄带内的跳频。图8为本发明在PUCCH窄带内的跳频的示意图，如图8所示，假设PUCCH窄带跳频粒度为4个子帧并且对应于子帧x至子帧x+3，对于承载于子帧x至子帧x+3任一确定的PUCCH格式1x或格式2x资源，在不同的子帧，不同的物理资源块PRB可以被占用。具体地，如图8中斜方格阴影部分所示，在子帧x和子帧x+2最高索引的PRB被占用，而在子帧x+1和子帧x+3最低索引的PRB被占用。也就是说，本发明实施例的窄带内的RB资源可选地指逻辑上的RB资源，而相同索引的逻辑RB资源在不同的时隙或子帧可以被映射到不同的物理PRB资源。
本发明实施例中的PUCCH窄带跳频方式同样也适用于PDSCH和/或PUSCH窄带的跳频。可选地，PUSCH和PUCCH具有相同跳频粒度。
对于FDD系统，在PUCCH重复传输的情况下，除了预先设置按照FDD所特有的跳频模式进行跳频以外，也可以预先设置按照某一TDD上下行配置下的跳频模式进行跳频；或者，通过广播的系统参数配置FDD下所使用的跳频模式。图9为本发明在FDD下按照在TDD子帧配置1下的跳频模式进行PUCCH窄带跳频的实施例的示意图，图9中，斜线阴影部分表示第一PUCCH窄带，斜方格阴影部分表示第二PUCCH窄带，如图9所示，假设系统带宽范围内存在两个PUCCH窄带如第一PUCCH窄带和第二PUCCH窄带，并假设在FDD下是按照在TDD子帧配置1下的跳频模式进行PUCCH窄带的跳频，具体地，对于FDD系统，UCI数据首先占用无线帧内子帧索引为2和3的连续2个子帧的第一PUCCH窄带，经过3个子帧持续时间的跳 频间隔后，占用无线帧内子帧索引为7和8的连续2个子帧的第二PUCCH窄带，再经过3个子帧持续时间的跳频间隔后，占用下一个无线帧内子帧索引为2和3的连续2个子帧的第一PUCCH窄带。在这种情况下，虽然任一无线帧内的索引0、1、4、5、6和9的子帧同样属于上行子帧，但它们不会被用于PUCCH的重复传输。这种方式便于实现FDD与TDD系统统一的PUCCH窄带跳频设计。
图10为本发明实现上行控制信息的传输装置的组成结构示意图，如图10所示，至少包括第一处理模块，第二处理模块；其中，
第一处理模块，设置为按照PUCCH结构，对PUCCH窄带内可用资源块(RB)承载的PUCCH资源进行编号；
第二处理模块，设置为根据编号后的PUCCH资源传输UCI。
其中，PUCCH结构包括但不限于：PUCCH格式1x结构和PUCCH格式2x结构。UCI包括HARQ确认ACK/NACK、SR信息以及CSI信息。
第一处理模块是设置为：分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资源进行统一编号；相应地，
第二处理模块是设置为：根据统一编号后的PUCCH格式1x资源传输ACK/NACK和SR信息，根据统一编号后的PUCCH格式2x资源传输CSI信息。
可选地，
第一处理模块还设置为：确定可用的PUCCH格式1x结构的资源数和可用的PUCCH格式2x结构的资源数。是设置为：
根据循环移位间隔(delta PUCCH-Shift)和可用的正交码(OC)个数N，确定每个可用RB资源内的可用PUCCH格式1x资源数；根据delta PUCCH-Shift，确定每个可用RB资源内的可用PUCCH格式2x资源数；
其中，delta PUCCH-Shift可以通过作为eNB广播的系统参数之一通知给UE，N为大于1的正整数，可选地，N可以等于3或4。
可选地，
第二处理模块还设置为：确定传输ACK/NACK的PUCCH窄带，是设置为：通过EPDCCH窄带、PDSCH窄带内的RB资源、ECCE资源中的一个隐式地确定PUCCH窄带；或者，通过DCI信令、RRC信令、以及RAR消息中的一个显式地通知PUCCH窄带。
第二处理模块还设置为：确定传输CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源，是设置为：通过RRC信令指示传输CSI的PUCCH窄带和窄带内的PUCCH格式2x资源；或者通过RRC信令指示传输SR的PUCCH窄带和窄带内的PUCCH格式1x资源。
可选地，
在传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，第二处理模块还设置为：获取PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。是设置为：
预先设置PUCCH窄带跳频粒度；或者，将PUCCH窄带跳频粒度作为eNB广播的系统参数之一通知给UE；其中，不同PUCCH窄带之间的跳频间隔等于PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。
可选地，
第二处理模块在传输UCI时，还设置为：通过RRC/DCI信令确定PUCCH格式1x资源的时域扩展码，以及通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输UCI。是设置为：
对于非重复传输的PUCCH格式1x资源，时域扩展码的时域扩展粒度是时隙，长度为2个时隙；或者，对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x资源，时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。根据时域扩展码传输UCI。
本发明实施例的实现上行控制信息的传输装置可以设置在终端侧，也可以设置在基站侧。
本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指 令，所述计算机可执行指令用于执行上述传输方法。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
以上所述，仅为本发明的可选实例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例的上行控制信息的传输方法及装置，通过分别按照PUCCH格式1x结构和PUCCH格式2x结构，对PUCCH窄带内所有可用的RB所承载的PUCCH格式1x资源和PUCCH格式2x资源统一编号，并根据统一编号后的PUCCH格式1x资源和PUCCH格式2x资源传输UCI，使PUCCH格式1x资源和PUCCH格式2x资源共享PUCCH窄带内相同的资源区域，在一定程度上减少了不必要的PUCCH资源空洞，提高了在PUCCH窄带范围内传输UCI的效率，从而实现了在上行引入的新的PUCCH窄带内的UCI的高效传输。

Claims (47)

  1. 一种上行控制信息的传输方法，包括：
    按照物理上行控制信道PUCCH结构对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号；
    根据编号后的PUCCH资源传输上行控制信息UCI。
  2. 根据权利要求1所述的传输方法，其中，所述PUCCH结构包括：PUCCH格式1x结构和PUCCH格式2x结构。
  3. 根据权利要求1所述的传输方法，其中，所述UCI包括混合自动重复请求HARQ确认ACK/NACK、调度请求SR信息，以及信道状态信息CSI。
  4. 根据权利要求2所述的传输方法，其中，所述对PUCCH窄带内可用RB承载的PUCCH资源进行编号的步骤包括：
    分别按照所述PUCCH格式1x结构和PUCCH格式2x结构，对所述PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资源进行统一编号。
  5. 根据权利要求2或4所述的传输方法，其中，在所述按照PUCCH结构对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号的步骤之前，该方法还包括：确定可用的所述PUCCH格式1x结构的资源数和可用的所述PUCCH格式2x结构的资源数。
  6. 根据权利要求5所述的传输方法，其中，
    所述确定可用的所述PUCCH格式1x结构的资源数的步骤包括：
    根据循环移位间隔delta PUCCH-Shift和可用的正交码OC个数N，确定每个可用RB资源内的所述可用的PUCCH格式1x资源数；
    所述确定可用的所述PUCCH格式2x结构的资源数的步骤包括：
    根据delta PUCCH-Shift确定每个可用RB资源内的所述可用的PUCCH格式2x资源数；
    其中，delta PUCCH-Shift通过作为基站广播的系统参数之一通知给终端，所述N为大于1的正整数。
  7. 根据权利要求6所述的传输方法，其中，所述N等于3。
  8. 根据权利要求4所述的传输方法，其中，所述根据编号后的PUCCH资源传输UCI的步骤包括：
    根据所述统一编号后的PUCCH格式1x资源传输所述UCI中的ACK/NACK和SR信息，根据所述统一编号后的PUCCH格式2x资源传输所述UCI中的CSI信息。
  9. 根据权利要求8所述的传输方法，其中，所述传输UCI的步骤之前，该方法还包括：确定传输ACK/NACK的所述PUCCH窄带。
  10. 根据权利要求9所述的传输方法，其中，所述确定传输ACK/NACK的所述PUCCH窄带的步骤包括：
    通过增强下行控制信道EPDCCH窄带、PDSCH窄带内的RB资源、和增强的控制信道单元ECCE资源中的一个隐式地确定所述PUCCH窄带；
    或者，通过下行控制信息DCI信令、射频资源控制RRC信令、和随机接入响应RAR消息中的一个显式地通知所述PUCCH窄带。
  11. 根据权利要求10所述的传输方法，还包括：确定传输所述ACK/NACK的PUCCH窄带内的PUCCH格式1x资源。
  12. 根据权利要求11所述的传输方法，其中，所述确定传输所述ACK/NACK的PUCCH窄带内的PUCCH格式1x资源的步骤包括：
    预先设置PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，或者，通过RRC信令或RAR消息通知PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；
    再根据得到的起始偏置，以及ECCE资源、PDSCH窄带内的RB资源、DCI信令、和RRC信令中的一个或多个，确定传输所述ACK/NACK的所述PUCCH窄带内的PUCCH格式1x资源。
  13. 根据权利要求12所述的传输方法，其中，根据下列公式确定所述传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源：
    n2＝(Oformat1x+n1)modQ；
    其中，mod为取余数运算符；
    Oformat1x为预先设置的所述PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置，或通过RRC信令或RAR消息通知的所述PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置；
    n2为所述传输ACK/NACK的PUCCH窄带内的PUCCH格式1x资源的索引；
    n1为以下取值中的一个：ECCE索引；ECCE所在ECCE组的组索引；ECCE在所在ECCE组内的索引；PDSCH窄带内的RB索引；通过DCI信令或RRC信令通知的索引；ECCE索引、ECCE所在ECCE组的组索引、以及ECCE在所在ECCE组内的索引中的一个与通过DCI信令或RRC信令通知的索引之和；以及PDSCH窄带内的RB索引与通过DCI信令或RRC信令通知的索引之和；
    Q表示所述PUCCH窄带内可用的PUCCH格式1x资源总数。
  14. 根据权利要求13所述的传输方法，其中，
    当所述n1为ECCE所在ECCE组的组索引时，在所述根据ECCE确定PUCCH窄带内的PUCCH格式1x资源的步骤之前，所述方法还包括：
    根据所述ECCE索引确定ECCE所在的ECCE组的组索引；
    当所述n1为ECCE在所在ECCE组内的索引时，在所述根据ECCE确定PUCCH窄带内的PUCCH格式1x资源的步骤之前，还包括：
    根据所述ECCE索引确定ECCE所在的ECCE组和ECCE在所在ECCE组内的索引，此时，不同ECCE组与不同PUCCH窄带一一对应。
  15. 根据权利要求9所述的传输方法，其中，在RRC连接建立之前，所述确定传输ACK/NACK的PUCCH窄带的步骤包括：
    通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内RB资源、以及ECCE资源中的一个隐式确定所述传输ACK/NACK的PUCCH窄带；
    并且所述PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置为预先设置的，取值固定为0。
  16. 根据权利要求9所述的传输方法，其中，在RRC连接建立之后，所述确定传输ACK/NACK的PUCCH窄带的步骤包括：
    通过RRC消息通知所述传输ACK/NACK的PUCCH窄带和PUCCH窄带内可用PUCCH格式1x资源范围的起始偏置。
  17. 根据权利要求10所述的传输方法，其中，当根据所述ECCE资源确定所述传输ACK/NACK的PUCCH窄带时，包括：
    根据所述ECCE索引确定所述ECCE所在ECCE组的组索引，再根据所述ECCE所在的ECCE组的组索引确定所述传输ACK/NACK的PUCCH窄带。
  18. 根据权利要求10所述传输方法，其中，对于时分双工TDD系统，在所述通过EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、ECCE资源中的一个隐式地确定PUCCH窄带的步骤中，以及在多个下行子帧PDSCH数据对应一个上行子帧的ACK/NACK资源的情况下，
    所述多个下行PDSCH数据始终使用相同EPDCCH窄带、或相同PDSCH窄带、或相同PDSCH窄带内的RB资源、或相同ECCE；
    或者，预先设置根据所述多个下行子帧PDSCH数据中的一个确定传输ACK/NACK的PUCCH窄带；其中，所述多个下行子帧PDSCH数据中的一个是首个或最后一个下行子帧的PDSCH数据。
  19. 根据权利要求8所述的传输方法，其中，所述传输UCI的步骤之前，该方法还包括：确定传输所述UCI中的CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源。
  20. 根据权利要求19所述的传输方法，其中，所述确定传输所述UCI中的CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源的步骤包括：
    通过RRC信令指示所述传输CSI的PUCCH窄带和所述PUCCH窄带内的PUCCH格式2x资源；
    或者，通过RRC信令指示所述传输SR的PUCCH窄带和所述PUCCH窄带内的PUCCH格式1x资源。
  21. 根据权利要求10所述的传输方法，其中，以下信息为预先设置，或者将其作为基站广播的系统参数之一通知给终端：
    所述PUCCH窄带数目，不同PUCCH窄带所占资源，重复传输PUCCH格式1x资源起始偏置，以及下列信息之一：所述EPDCCH窄带、PDSCH窄带、PDSCH窄带内的RB资源、以及ECCE与PUCCH窄带的配对关系。
  22. 根据权利要求9或20所述的传输方法，其中，对于频分双工FDD和TDD系统，预先设置的PUCCH窄带数或通过系统参数指示的最大PUCCH窄带数不同。
  23. 根据权利要求22所述的传输方法，其中，对于TDD系统，不同的TDD子帧配置对应相同的PUCCH窄带数，根据所有TDD子帧配置中的一个确定所述预先设置的PUCCH窄带数或通过系统参数指示的PUCCH窄带数。
  24. 根据权利要求1、2或4所述的传输方法，其中，在所述传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，该方法还包括：
    获取PUCCH窄带跳频粒度；
    根据获得的PUCCH窄带跳频粒度执行跳频处理。
  25. 根据权利要求24所述的传输方法，其中，对于TDD和FDD系统，根据所述窄带跳频粒度确定可用的所述PUCCH的重复传输次数。
  26. 根据权利要求24所述的传输方法，其中，对于FDD系统，所述获取PUCCH窄带跳频粒度的步骤包括：
    预先设置PUCCH窄带跳频粒度；
    或者，将PUCCH窄带跳频粒度作为基站广播的系统参数之一通知给终端；其中，不同PUCCH窄带之间的跳频间隔等于PUCCH窄带跳频粒度。
  27. 根据权利要求26所述的传输方法，其中，所述窄带跳频粒度为在确定PUCCH窄带内的传输所持续的子帧数；
    根据PUCCH窄带跳频粒度和以下公式确定可用作所述PUCCH重复传输的首次传输的子帧：
    (10×Iframe+Isubframe)modGhopping＝0；
    其中，Isubframe表示所述可用作所述PUCCH重复传输的首次传输的子帧的子帧索引，取值范围是0至9的整数，Iframe表示所述可用作所述PUCCH重复传输的首次传输的子帧所在无线帧的索引，以及，Ghopping表示PUCCH窄带跳频粒度。
  28. 根据权利要求24所述的传输方法，其中，对于FDD系统，在所述PUCCH重复传输的情况下，预先设置按照确定TDD上下行配置的跳频模式进行所述跳频处理；或者，通过广播的系统参数配置FDD下所使用的跳频模式进行所述跳频处理。
  29. 根据权利要求24所述的传输方法，其中，对于TDD系统，所述获取PUCCH窄带跳频粒度的步骤包括：
    根据TDD子帧配置确定所述PUCCH窄带跳频粒度以及不同PUCCH窄带之间的跳频间隔。
  30. 根据权利要求29所述的传输方法，其中，所述根据TDD子帧配置确定所述PUCCH窄带跳频粒度以及不同PUCCH窄带之间的跳频间隔的步骤包括：
    对于TDD子帧配置0至5的情况，所述PUCCH窄带跳频粒度等于连续的最大上行子帧数，不同PUCCH窄带之间的跳频间隔等于连续的最大非上行子帧数，其中，非上行子帧包括下行子帧和特殊子帧；
    对于TDD子帧配置6的情况，所述PUCCH窄带跳频粒度等于3或2，不同PUCCH窄带之间的跳频间隔等于2或3个子帧。
  31. 根据权利要求1、2或4所述的传输方法，所述传输UCI的步骤中，传输所述UCI的方式包括：通过RRC或DCI信令确定PUCCH格式1x资源的时域扩展码，以及，通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输所述UCI。
  32. 根据权利要求31所述的传输方法，其中，所述确定PUCCH格式1x资源的时域扩展码，以及确定重复传输的PUCCH格式2x资源的时域扩展码的步骤包括：
    对于非重复传输的PUCCH格式1x资源，所述时域扩展码的时域扩展粒度是时隙，长度为2个时隙；
    对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x资源，所述时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度。
  33. 一种上行控制信息的传输装置，包括第一处理模块和第二处理模块；其中，
    第一处理模块，设置为按照物理上行控制信道PUCCH结构，对PUCCH窄带内可用资源块RB承载的PUCCH资源进行编号；
    第二处理模块，设置为根据编号后的PUCCH资源传输UCI。
  34. 根据权利要求33所述的传输装置，其中，所述PUCCH结构包括：PUCCH格式1x结构和PUCCH格式2x结构。
  35. 根据权利要求33所述的传输装置，其中，所述UCI包括：混合自动重复请求HARQ确认ACK/NACK、调度请求SR信息，以及信道状态信息CSI。
  36. 根据权利要求34所述的传输装置，其中，所述第一处理模块是设置为：分别按照所述PUCCH格式1x结构和PUCCH格式2x结构，对所述PUCCH窄带内可用RB所承载的PUCCH格式1x资源和PUCCH格式2x资源进行统一编号；相应地，
    所述第二处理模块是设置为：根据统一编号后的PUCCH格式1x资源传输ACK/NACK和SR信息，根据统一编号后的PUCCH格式2x资源传输CSI信息。
  37. 根据权利要求36所述的传输装置，其中，所述第一处理模块还设置为：确定可用的所述PUCCH格式1x结构的资源数和可用的所述PUCCH格式2x结构的资源数。
  38. 根据权利要求37所述的传输装置，其中，所述第一处理模块是设置为：
    根据循环移位间隔delta PUCCH-Shift和可用的正交码OC个数N，确定每个可用RB资源内的所述可用的PUCCH格式1x资源数；根据delta  PUCCH-Shift，确定每个可用RB资源内的所述可用的PUCCH格式2x资源数；
    其中，delta PUCCH-Shift通过作为基站广播的系统参数之一通知给终端，N为大于1的正整数。
  39. 根据权利要求36所述的传输装置，其中，所述第二处理模块还设置为：确定传输ACK/NACK的所述PUCCH窄带。
  40. 根据权利要求39所述的传输装置，其中，所述第二处理模块是设置为：通过EPDCCH窄带、PDSCH窄带内的RB资源、以及ECCE中的一个隐式地确定PUCCH窄带；或者，通过DCI信令、RRC信令、以及RAR消息中的一个显式地通知PUCCH窄带。
  41. 根据权利要求36或39所述的传输装置，其中，所述第二处理模块还设置为：确定传输CSI的PUCCH窄带和PUCCH窄带内的PUCCH格式2x资源；或者确定传输所述UCI中的SR的PUCCH窄带和PUCCH格式1x资源。
  42. 根据权利要求41所述的传输装置，其中，所述第二处理模块是设置为：通过RRC信令指示传输CSI的PUCCH窄带和窄带内的PUCCH格式2x资源；或者通过RRC信令指示传输SR的PUCCH窄带和窄带内的PUCCH格式1x资源。
  43. 根据权利要求33、34或36所述的传输装置，其中，在所述第二模块传输UCI的过程中，在需要进行PUCCH重复传输情况下，如果需要执行跳频处理，第二处理模块还设置为：获取PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。
  44. 根据权利要求43所述的传输装置，其中，所述第二处理模块是设置为：
    预先设置PUCCH窄带跳频粒度；或者，将PUCCH窄带跳频粒度作为基站广播的系统参数之一通知给终端；其中，不同PUCCH窄带之间的跳频间隔等于PUCCH窄带跳频粒度；根据获得的PUCCH窄带跳频粒度执行跳频处理。
  45. 根据权利要求33、34或36所述的传输装置，其中，在所述第二处 理模块传输UCI时，所述第二处理模块还设置为：通过RRC或DCI信令确定PUCCH格式1x资源的时域扩展码，以及，通过RRC信令确定重复传输的PUCCH格式2x资源的时域扩展码；根据时域扩展码传输UCI。
  46. 根据权利要求45所述的传输装置，其中，所述第二处理模块是设置为：
    对于非重复传输的PUCCH格式1x资源，所述时域扩展码的时域扩展粒度是时隙，长度为2个时隙；或者，对于重复传输的PUCCH格式1x资源和重复传输的PUCCH格式2x资源，所述时域扩展码的时域扩展粒度是子帧且长度等于PUCCH窄带跳频粒度；
    根据时域扩展码传输UCI。
  47. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1至32中任一项所述的传输方法。
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