WO2014019194A1 - 导频配置方法、发送方法及装置 - Google Patents

导频配置方法、发送方法及装置 Download PDF

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Publication number
WO2014019194A1
WO2014019194A1 PCT/CN2012/079586 CN2012079586W WO2014019194A1 WO 2014019194 A1 WO2014019194 A1 WO 2014019194A1 CN 2012079586 W CN2012079586 W CN 2012079586W WO 2014019194 A1 WO2014019194 A1 WO 2014019194A1
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WO
WIPO (PCT)
Prior art keywords
resource
physical resource
pilot sequence
demodulation pilot
parameter
Prior art date
Application number
PCT/CN2012/079586
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English (en)
French (fr)
Inventor
刘鹍鹏
刘江华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280004109.1A priority Critical patent/CN103718526B/zh
Priority to ES12882146T priority patent/ES2785301T3/es
Priority to EP12882146.9A priority patent/EP2882155B1/en
Priority to PCT/CN2012/079586 priority patent/WO2014019194A1/zh
Publication of WO2014019194A1 publication Critical patent/WO2014019194A1/zh
Priority to US14/611,743 priority patent/US10256951B2/en
Priority to US16/289,142 priority patent/US10848282B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0069Allocation based on distance or geographical location
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a pilot configuration method, a transmitting method, and an apparatus. Background technique
  • E-PDCCH Enhanced-Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • FDM frequency division multiplexing
  • the user equipment (User Equipment, UE) adopts a PDSCH-like demodulation method, that is, demodulates the E-PDCCH by Demodulation Reference Signal (DMRS).
  • DMRS Demodulation Reference Signal
  • the UE obtains the DMRS in each time slot, it needs to generate an initial value of the DMRS, and the initial value of the DMRS involves three parameters, including a slot number, a scrambling code ID notified by the base station, and a network side selected from the candidate ID set. The initial ID of the DMRS used for this time slot transmission.
  • the scrambling code ID and the initial ID of the DMRS need to be transmitted through the E-PDCCH, but since the parameters for calculating the DMRS need to be obtained by demodulating the E-PDCCH, and demodulating the E-PDCCH requires the DMRS, In this manner, it is difficult for the UE to obtain the DMRS of the control channel E-PDCCH, so that the E-PDCCH cannot be demodulated to obtain scheduling indication information.
  • the embodiments of the present invention provide a pilot configuration method, a sending method, and a device, to solve the problem in the prior art that it is difficult to obtain a DMRS for demodulating a control channel E-PDCCH.
  • a pilot configuration method includes:
  • the user equipment UE determines, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource
  • the source set includes a first resource set and a second resource set, where the parameter includes a first parameter and a second parameter, and an initial value of the first demodulation pilot sequence is generated according to the first parameter on the first resource set Generating an initial value of the second demodulation pilot sequence according to the second parameter on the second resource set;
  • a demodulation pilot sequence is obtained by an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively.
  • the first resource set includes a physical resource unit set set on a system bandwidth, where the second resource set includes a physical A collection of physical resource units outside of a collection of resource units.
  • the first resource set includes a physical resource unit set, where the physical resource unit set is a set of physical resource units, and the second resource set includes a physical resource unit set.
  • the resource unit set is a set of physical resource units configured for the UE; or the set of physical resource units included in the second resource set is a set of physical resource units configured for the UE, except the one included in the first resource set A collection of other physical resource units outside the set of physical resource units.
  • the first resource set includes a physical resource unit set that is transmitted according to a transmission mode
  • the second resource set includes a centralized mode according to a transmission mode.
  • the first resource set includes a physical resource unit set transmitted according to beamforming
  • the second resource set includes a physical resource unit according to a diversity transmission.
  • the first resource set includes a physical resource unit set corresponding to a common search area
  • the second resource set includes a physical resource unit set corresponding to a user-specific search interval
  • the first resource set includes: a physical resource unit set corresponding to a first downlink control information format DCI format set, where the second resource set includes a second transmission DCI format The collection of physical resource units corresponding to the set.
  • the first resource set includes a physical resource unit set for transmitting common control signaling
  • the second resource set includes a UE-specific control for transmitting user equipment.
  • the first resource set includes, according to system information, a wireless network temporary identifier, SI-RNT, a paging message, a wireless network temporary identifier, a P-RNT I, and a temporary RNT.
  • I random access - radio network temporary identification RA-RNTI, semi-static - wireless network temporary identification SPS-RNTI, transmitting work Rate control - at least one of the radio network temporary identification TPC-RNTI performs a CRC plus mask corresponding physical resource unit set
  • the second resource set includes a CRC according to the cell-radio network temporary identifier C-RNTI A set of physical resource units corresponding to the masked control signaling.
  • the first resource set includes a physical resource unit set corresponding to a first pilot port set
  • the second resource set includes a second pilot port set corresponding to A collection of physical resource units.
  • the first parameter includes: a scrambling code ID set to 0 or 1, and a first demodulation pilot set to a cell ID of a cell where the UE is located The initial ID of the sequence; the second parameter includes: a scrambling code ID configured on the network side, and an initial ID of the second demodulation pilot sequence configured on the network side; or a scrambling code ID set to 0 or 1, and a network The initial ID of the second demodulation pilot sequence configured on the side; or the scrambling code ID configured on the network side, and the initial ID of the second demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • the scrambling code ID configured by the network side includes: the scrambling code ID configured by the network side for the physical downlink shared channel PDSCH; or the network side is enhanced physical
  • the initial ID of the second demodulation pilot sequence configured on the network side includes: an initial ID of the demodulation pilot sequence configured by the network side for the PDSCH; or The network side is an initial ID of a demodulation pilot sequence configured for the E-PDCCH.
  • a method for transmitting a pilot includes:
  • Demodulating the pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively;
  • the first resource set includes a physical resource unit set set on a system bandwidth, where the second resource set includes a physical a set of physical resource units outside the set of resource units; or, the first set of resources includes a set of physical resource units that are transmitted in a discrete manner according to a transmission mode, and the second set of resources includes a physical medium that performs transmission according to a transmission mode.
  • the first resource set includes a physical resource unit set transmitted according to beamforming, and the second resource set includes a physical resource unit set transmitted according to diversity; or
  • the first resource set includes a physical resource unit set corresponding to a common search interval, and the second resource set includes a physical resource unit set corresponding to a user-specific search interval; or the first resource set includes a first downlink control.
  • the first resource set includes: according to system information, a wireless network temporary identifier, an SI-RNTI, Call message-radio network temporary identifier P-RNTI, temporary RNTI, random access-radio network temporary identifier RA-RNTI, semi-static-wireless network temporary identifier SPS-RNTI, transmit power control-radio network temporary identifier TPC-RNTI At least one set of physical resource units corresponding to control signaling for performing CRC plus masking, The second set of resources in a cell comprising - radio network temporary identity
  • the C-RNTI performs a CRC-masked control signaling corresponding to the set of physical resource units; or the first resource set includes a physical resource unit set corresponding to the first pilot port set, and the second resource set includes the second A set of physical resource units corresponding to a set of pilot ports.
  • the physical resource unit set includes: at least one enhanced resource unit group eREG, or a resource unit set corresponding to at least one enhanced control channel unit eCCE, or at least one physical resource Block PRB, or at least one physical resource unit pair PRB pair.
  • the first parameter includes: a scrambling code ID set to 0 or 1, and a first demodulation pilot set to a cell ID of a cell where the UE is located
  • the second parameter includes: a scrambling code ID configured on the network side, and an initial ID of the second demodulation pilot sequence configured on the network side; or a scrambling code ID set to 0 or 1, and a network
  • the scrambling code ID configured by the network side includes: a scrambling code ID configured by the network side to be a physical downlink shared channel (PDSCH); Or, the network side is a scrambling code ID configured by the enhanced physical downlink control channel E-PDCCH; the initial ID of the second demodulation pilot sequence configured by the network side includes: demodulation configured by the network side for the PDSCH An initial ID of the pilot sequence; or, the network side is an initial ID of a demodulation pilot sequence configured by the E-PDCCH.
  • PDSCH physical downlink shared channel
  • E-PDCCH enhanced physical downlink control channel
  • a pilot configuration apparatus where the apparatus includes:
  • a determining unit configured to determine, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes a first resource set and a second resource set, where the parameter includes a first parameter and a second parameter; a generating unit, configured to generate, according to the first parameter, a first demodulation pilot sequence on the first resource set An initial value, the initial value of the second demodulation pilot sequence is generated according to the second parameter on the second resource set;
  • an obtaining unit configured to obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively.
  • the first resource set includes a physical resource unit set set on a system bandwidth, where the second resource set includes a physical a set of physical resource units outside the set of resource units; or, the first set of resources includes a set of physical resource units that are transmitted in a discrete manner according to a transmission mode, and the second set of resources includes a physical medium that performs transmission according to a transmission mode.
  • the first resource set includes a set of physical resource units that are transmitted according to beamforming, and the second set of resources includes a set of physical resource units that are transmitted according to diversity; or, the first set of resources includes a set of physical resource units corresponding to the common search interval, where the second set of resources includes a set of physical resource units corresponding to the user-specific search interval; or the first set of resources includes a corresponding DCI format set corresponding to the first downlink control information format.
  • the second set of resources And including transmitting a physical resource unit set corresponding to the second DCI format set; or, the first resource set includes a physical resource unit set for transmitting common control signaling, where the second resource set includes Controlling a set of physical resource units of the signaling set; or, the first set of resources includes according to system information - a radio network temporary identifier SI-RNTI, a paging message - a radio network temporary identifier P-RNTI, a temporary RNTI, a random access - Radio network temporary identifier RA-RNTI, semi-static-radio network temporary identifier SPS-RNTI, transmit power control-radio network temporary identifier TPC-RNTI at least one of CRC plus mask control signaling corresponding physical resource unit set
  • the second resource set includes a physical resource unit set corresponding to the CRC-masked control signaling according to the cell-radio network temporary identifier C-RNTI; or the first resource set includes the first pilot port set corresponding to a
  • the first parameter determined by the determining unit includes: a scrambling code ID set to 0 or 1, and a first set to a cell ID of a cell where the UE is located Demodulating an initial ID of the pilot sequence;
  • the second parameter determined by the determining unit includes: a scrambling code ID configured on the network side, and an initial ID of the second demodulation pilot sequence configured on the network side; or, set to 0 or a scrambling code ID of 1 and an initial ID of a second demodulation pilot sequence configured on the network side; or a scrambling code ID configured on the network side, and a second demodulation pilot set to a cell ID of a cell in which the UE is located The initial ID of the sequence.
  • a fourth aspect provides a pilot transmitting apparatus, where the apparatus includes:
  • a determining unit configured to determine, according to the resource set, a parameter for generating an initial value of the demodulation pilot sequence
  • the resource set includes a first resource set and a second resource set, where the parameter includes a first parameter and a second parameter, and a generating unit, configured to generate, according to the first parameter, a first demodulation guide on the first resource set
  • An initial value of the frequency sequence, the initial value of the second demodulation pilot sequence is generated according to the second parameter on the second resource set;
  • an obtaining unit configured to obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively;
  • the first resource set includes a physical resource unit set set on a system bandwidth, where the second resource set includes a physical a set of physical resource units outside the set of resource units; or, the first set of resources includes a set of physical resource units that are transmitted in a discrete manner according to a transmission mode, and the second set of resources includes a physical medium that performs transmission according to a transmission mode.
  • the first resource set includes a set of physical resource units that are transmitted according to beamforming, and the second set of resources includes a set of physical resource units that are transmitted according to diversity; or, the first set of resources includes a set of physical resource units corresponding to the common search interval, where the second set of resources includes a set of physical resource units corresponding to the user-specific search interval; or the first set of resources includes a corresponding DCI format set corresponding to the first downlink control information format.
  • the second set of resources And including transmitting a physical resource unit set corresponding to the second DCI format set; or, the first resource set includes a physical resource unit set for transmitting common control signaling, where the second resource set includes Controlling a set of physical resource units of the signaling set; or, the first set of resources includes according to system information - a radio network temporary identifier SI-RNTI, a paging message - a radio network temporary identifier P-RNTI, a temporary RNTI, a random access - Radio network temporary identifier RA-RNTI, semi-static-radio network temporary identifier SPS-RNTI, transmit power control-radio network temporary identifier TPC-RNTI at least one of CRC plus mask control signaling corresponding physical resource unit set
  • the second resource set includes a physical resource unit set corresponding to the CRC-masked control signaling according to the cell-radio network temporary identifier C-RNTI; or the first resource set includes the first pilot port set corresponding to a
  • the first parameter determined by the determining unit includes: a scrambling code ID set to 0 or 1, and a first set to a cell ID of a cell where the UE is located Demodulating an initial ID of the pilot sequence;
  • the second parameter determined by the determining unit includes: a scrambling code ID configured on the network side, and an initial ID of the second demodulation pilot sequence configured on the network side; or, set to 0 or a scrambling code ID of 1 and an initial ID of a second demodulation pilot sequence configured on the network side; or a scrambling code ID configured on the network side, and set to be small for the UE
  • the initial ID of the second demodulation pilot sequence of the cell ID of the zone includes: a scrambling code ID set to 0 or 1, and a first set to a cell ID of a cell where the UE is located Demodulating an initial ID of the pilot sequence;
  • the second parameter determined by the determining unit includes: a scrambling code ID configured on the network side, and an initial ID of
  • the UE determines, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes a first resource set and a second resource set, where the parameter includes the first parameter and the second parameter, where Generating an initial value of the first demodulation pilot sequence according to the first parameter, and generating an initial value of the second demodulation pilot sequence according to the second parameter on the second resource set, respectively, by using the first demodulation pilot
  • the initial value of the sequence and the initial value of the second demodulation pilot sequence obtain a demodulation pilot sequence.
  • the demodulation pilot sequence of the demodulation E-PDCCH when the demodulation pilot sequence of the demodulation E-PDCCH is acquired, since the parameters for calculating the initial value of the demodulation pilot sequence are respectively configured according to the pre-divided resource set, the E- is received.
  • the initial value of the demodulation pilot sequence may be calculated according to the set parameter according to the set of resources to which the E-PDCCH belongs, and then the demodulation pilot sequence used for demodulating the E-PDCCH may be obtained to improve the E-PDCCH. Demodulation performance.
  • FIG. 1 is a flow chart of an embodiment of a pilot configuration method according to the present invention.
  • FIG. 1 is a schematic diagram of the allocation of time-frequency resources in the R11 system:
  • FIG. 3 is a schematic diagram of an application scenario in which an embodiment of the present invention is applied in a CoMP communication system
  • FIG. 4 is a schematic diagram of a resource set divided according to physical resources according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram showing a mapping relationship between a resource set and a time-frequency resource according to a logical resource according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a resource set divided according to a port according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of an embodiment of a pilot transmission method according to the present invention.
  • FIG. 8 is a block diagram of an embodiment of a pilot configuration apparatus of the present invention.
  • FIG. 9 is a block diagram of an embodiment of a pilot transmitting apparatus of the present invention. detailed description
  • the following embodiments of the present invention provide a pilot configuration method, a sending method, and an apparatus.
  • FIG. 1 is a flowchart of an embodiment of a pilot configuration method according to the present invention
  • the embodiment describes a pilot configuration process from a UE side:
  • Step 101 The UE determines, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes the first resource set and the second resource set, where the parameter includes the first parameter and the second parameter.
  • FIG. 2 is a schematic diagram of allocation of time-frequency resources in the R1 1 system.
  • the R1 1 system defines an E-PDCCH resource in addition to the PDCCH resource for transmitting the user scheduling indication information on the time-frequency resource.
  • the E-PDCCH resource occupies a part of the existing PDSCH resource.
  • the FDM mode is used to share time-frequency resources between the E-PDCCH resource and the PDSCH resource.
  • the embodiment of the present invention is configured to configure a demodulation pilot sequence for demodulating an E-PDCCH, where the time-frequency resource in the resource set is an E-PDCCH resource, and the demodulation pilot sequence is used to demodulate the E-PDCCH. Pilot sequence.
  • the first resource set and the second resource set obtained after dividing the resource set respectively include a part of the E-PDCCH resources in the original resource set.
  • the first mode is a set of resources divided according to the physical resource.
  • the first resource set may include a set of physical resource units set on the system bandwidth
  • the second set of resources may include the set physical resources on the system bandwidth.
  • a set of physical resource units outside the set of units, the set of set physical resource units may be obtained by a cell ID, and/or a slot number.
  • the physical resource unit set included in the first resource set may be a physical resource unit set configured in the physical resource unit set
  • the physical resource unit set included in the second resource set may be a physical configured to the UE.
  • a set of physical resource units included in the second set of resources is a set of physical resource units other than the set of physical resource units included in the first set of resources.
  • the second mode is a set of resources divided according to physical resources.
  • the first set of resources may include a set of physical resource units that are transmitted according to a transmission mode
  • the second set of resources may include a centralized mode according to the transmission mode.
  • the third mode the resource set is a resource set divided according to the physical resource, where the first resource set may include a physical resource unit set transmitted according to beamforming, and the second resource set may include a physical resource unit set transmitted according to the diversity .
  • the first resource set may include a physical resource unit set corresponding to the common search interval, and the second resource set may include a physical resource unit set corresponding to the user-specific search interval. .
  • the fifth mode is a set of resources divided according to a format of a downlink control information (DCI).
  • the first set of resources may include a set of physical resource units corresponding to the first DCI format set.
  • the second set of resources may include transmitting a set of physical resource units corresponding to the second DCI format set.
  • the resource set is a resource set divided according to the type of control signaling, where the first resource set may include a physical resource unit set for transmitting common control signaling, and the second resource set may include a UE for transmitting A collection of physical resource elements for a particular set of control signaling.
  • the resource set is a resource set divided by a control packet of a Cyclic Redundancy Check (CRC) that is masked according to a Radio Network Temporary Identifier (RNTI).
  • the first resource set may include a system information-Radio Network Temporary Identifier (SI-RNTI), a paging message-Paging-Radio Network Temporary Identifier (P-RNTI), Temporary RNTI, Random Access-Radio Network Temporary Identifier (RA-RNTI), Semi-Persistent-Radio Network Temporary Identifier (SPS-RNTI), Transmit Power Control- At least one of a Transmit Power Control-Radio Network Temporary Identifier (TPC-RNTI) performs a CRC-masked control signaling group corresponding to the physical resource unit, and the second resource set may include a cell-wireless network Temporary logo (Cel l-Radio Network Tempora Ry Identifier, C-RNTI) A set of physical resource elements corresponding to the CRC-m
  • the resource set is a set of resources divided according to a pilot port, where the first set of resources may include a set of physical resource units corresponding to the first set of pilot ports, and the second set of resources may include a set of second pilot ports A corresponding set of physical resource units.
  • the physical resource unit set may include: at least one enhanced resource element group (eREG), or at least one resource unit set corresponding to an enhanced control channel element (eCCE), Or at least one physical resource block (PRB), or at least one physical resource block pair (PRB pair).
  • eREG enhanced resource element group
  • eCCE enhanced control channel element
  • PRB physical resource block
  • PRB pair physical resource block pair
  • Step 102 Generate an initial value of the first demodulation pilot sequence according to the first parameter on the first resource set, where An initial value of the second demodulation pilot sequence is generated according to the second parameter on the second resource set.
  • the formula for calculating the initial value of the demodulation pilot sequence is consistent with the prior art, and three parameters are required, namely, a slot number, a scrambling code ID, and an initial ID of the demodulation pilot sequence.
  • C imt (L" s / 2" + l)x(2 + l)x2 16 +
  • denotes the initial value of the demodulation pilot sequence
  • s denotes the slot number
  • sem is the scrambling code
  • ID X which is the initial ID of the demodulation pilot sequence
  • L ′′ represents an integer.
  • " s can be obtained by the UE through downlink synchronization, and " sem and then need to be pre-configured to calculate the initial value of the demodulation pilot sequence by the above formula.
  • the first parameter is a parameter used to calculate an initial value of the demodulation pilot sequence of the E-PDCCH in the first resource set
  • the second parameter is a demodulation guide used to calculate the E-PDCCH in the second resource set.
  • the first parameter and the second parameter respectively need to include " sem and.”
  • the first parameter set may include a scrambling code ID (n SCJD) 0 or 1, and provided to the cell ID of the cell where the UE a first pilot sequence demodulates CX) 0 second parameter
  • the information may include a scrambling code ID ( ⁇ scro ) configured on the network side, and an initial ID (X ) of the second demodulation pilot sequence configured on the network side; or a scrambling code ID ( ⁇ 50 ⁇ ) set to 0 or 1, and An initial ID (X) of the second demodulation pilot sequence configured on the network side; or a scrambling code ID (n SCJD ) configured on the network side, and a second demodulation pilot sequence set to the cell ID of the cell in which the UE is located Initial ID CX) 0
  • the scrambling code ID configured on the network side in the second parameter may be specifically a scrambling code ID configured for the PDSCH on the network side, or a scram
  • the resource set including the E-PDCCH is divided, and the initial values of the demodulation pilot sequences of different resource sets are calculated according to different parameters configured in advance for the different resource sets after the partitioning, so that the demodulation guide can be used according to the demodulation guide.
  • the initial value of the frequency sequence results in a demodulation pilot sequence for demodulating different E-PDCCHs.
  • Step 103 Obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively.
  • the process of obtaining the demodulation pilot sequence according to the initial value is consistent with the process of obtaining the demodulation pilot sequence according to the initial value of the demodulation pilot sequence in the prior art, that is, The demodulation pilot sequence is generated by: ,, 1 / one..., 1 ⁇
  • N X ' D L is the number of PRBs included in the maximum system bandwidth
  • m is the element of the generated sequence
  • normal cycl ic prefix means that the value of m ranges from 0 to 0 in the normal cyclic prefix configuration.
  • extended cycl ic prefix refers to the range of m in the extended cyclic prefix configuration is -1; wherein, the initial value of c is the initial value c mit of the demodulation pilot sequence generated in the foregoing step 101.
  • the embodiment of the present invention only shows the manner in which the resource set is divided into the first resource set and the second resource set into two sets.
  • the resource set is divided into two or more resource sets as needed, as long as the E-PDCCH in the divided resource set can calculate the initial value of the demodulation pilot sequence according to the set parameters, without the E-PDCCH bearer calculation and demodulation
  • the parameter of the initial value of the pilot sequence is not limited, and the embodiment of the present invention is not limited.
  • the demodulation pilot sequence of the demodulation E-PDCCH when the demodulation pilot sequence of the demodulation E-PDCCH is acquired, since the parameters for calculating the initial value of the demodulation pilot sequence are respectively configured according to the resource set, after receiving the E-PDCCH, The initial value of the demodulation pilot sequence may be calculated according to the set parameter according to the set of resources to which the E-PDCCH belongs, and then the demodulation pilot sequence used for demodulating the E-PDCCH may be obtained to improve the demodulation performance of the E-PDCCH.
  • An embodiment of the above pilot configuration method of the present invention can be applied to a communication system using CoMP technology, and a possible scenario in the communication system is shown in FIG.
  • a Macro site contains three RRH (Remote Radio Head) units, and the Macro site and the UEs in the three RRH units can transmit E- using the same PRB on the time-frequency resource.
  • the PDCCH for example in FIG. 3, uses the PRB2 to transmit the E_PDCCH.
  • the E-PDCCH multiplexes a part of the resources of the PDSCH, it is difficult to demodulate the E-PDCCH according to the manner of demodulating the PDSCH; further, if the initial value of the demodulation pilot sequence of the demodulated E-PDCCH is calculated, The initial IDs of the scrambling code ID and the demodulation pilot sequence are both pre-configured fixed values.
  • the frequency resource transmits the E-PDCCH, so the initial values of the demodulation pilot sequences calculated according to the fixed value are the same, and the corresponding demodulated pilot sequences are also in the same position on the time-frequency resources (as shown in the gray square in FIG. 3). Therefore, the demodulation pilot sequence of the E-PDCCH transmitted by the Macro site and the RRH unit on the same time-frequency resource PRB2 may collide, which may result in deterioration of channel estimation performance and demodulation performance of the E-PDCCH.
  • the resource set of the time-frequency resource may be divided, and the different resource sets use different parameters to calculate the initial value of the demodulation pilot sequence, thereby ensuring transmission on the same time-frequency resource.
  • the resource set is divided according to physical resources.
  • the first set of resources may include a set of physical resource units set on a system bandwidth
  • the second set of resources may include a set of physical resource units except the set of physical resource units on the system bandwidth.
  • the physical resource block included in the first set of resources may be at least one PRB in the system bandwidth, at an intermediate location, or at least one PRB at the edge location.
  • the first resource set generally uses the set fixed parameter to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the initial ID of the sequence is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or,
  • the scrambling code ID configured on the network side and the initial ID of the demodulation pilot sequence set as the cell ID of the cell in which the UE is located may be employed.
  • the second resource set may be further divided into a plurality of resource sub-sets, and each resource sub-set uses a set of parameters configured by the network side to calculate an initial value of the demodulation pilot sequence, that is, the embodiment of the present invention may flexibly allocate the resource set. Dividing, using different configuration parameters for different resource sets to calculate the initial value of the demodulation pilot sequence.
  • the first time-frequency resource set may adopt a first parameter that is set (for example, nSCID is 0, and X is a cell ID
  • the second time-frequency resource set A may calculate an initial value of the demodulation pilot sequence by using a second parameter configured on the network side (for example, nSCID is 0, and X of the network side configuration is X) (0))
  • the second time-frequency resource B may calculate the initial value of the demodulation pilot sequence by using a third parameter configured on the network side (for example, nSCID is 1, and X (X) configured on the network side).
  • the resource set is also divided according to the physical resource.
  • the first set of resources may include a set of physical resource units that are transmitted in a discrete manner according to a transmission mode
  • the second set of resources may include a set of physical resource units that are transmitted in a centralized manner according to a transmission mode.
  • the discrete transmission refers to data transmission on at least one discrete set of physical resource units
  • the centralized transmission refers to data transmission on a continuous set of at least one physical resource unit.
  • the first resource set may generally calculate the initial value of the demodulation pilot sequence by using the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation guide set to the cell ID of the cell where the UE is located. The initial ID of the frequency sequence.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or, the network The scrambling code ID of the side configuration, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • the resource set is still divided according to physical resources.
  • the first set of resources may include a set of physical resource units transmitted according to beamforming
  • the second set of resources may include a set of physical resource units transmitted according to diversity.
  • a specific precoder is used for transmission; according to the diversity transmission, a Spatial Frequency Block Code (SFBC) or SFBC+ Frequency Switched Transmit Diversity (Frequency Switched Transmit Diversity, FSTD), or random beamforming, or open loop beamforming for transmission.
  • SFBC Spatial Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the first resource set may generally calculate the initial value of the pilot sequence by using the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation pilot sequence set to the cell ID of the cell where the UE is located.
  • the initial ID is the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation pilot sequence set to the cell ID of the cell where the UE is located.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or, the network The scrambling code ID of the side configuration, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • the resource set is divided according to logical resources.
  • the first resource set may include a physical resource unit set corresponding to the common search interval
  • the second resource set may include a physical resource unit set corresponding to the user-specific search interval.
  • CCE Control Channel Element
  • a component of the E-PDCCH resource where each CCE is mapped to a specific set of time-frequency grids (Resources, REs) in the E-PDCCH time-frequency region.
  • the CCE included in the E-PDCCH region is logically divided into a common search interval and a user search interval, where the common search interval is used for scheduling the transmission of common control information (eg, system broadcast messages, paging messages, random access messages, etc.)
  • the user search interval is used to transmit the user up and down Scheduling indication signaling for data transmission.
  • the first resource set generally uses the set fixed parameter to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the initial ID of the sequence; the second resource set can generally calculate the initial value of the demodulation pilot sequence by using parameters configured on the network side, that is, the scrambling code ID configured on the network side, and the initial ID of the demodulation pilot sequence configured on the network side;
  • the initial value of the demodulation pilot sequence may be calculated by using the set fixed parameter and the parameter configured on the network side, for example, the scrambling code ID set to 0 or 1, and the initial of the demodulation pilot sequence configured on the network side. ID; or, the scrambling code ID configured on the network side, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • FIG. 5 is a schematic diagram of a mapping relationship between a resource set and a time-frequency resource according to a logical resource according to an embodiment of the present invention, where a common search interval and a user-specific search interval respectively correspond to a part of time-frequency resources on a system bandwidth, as shown in FIG. 5 .
  • the time-frequency resource corresponding to the common search area is represented by the time-frequency resource set 1
  • the time-frequency resource corresponding to the user-specific search interval is represented by the time-frequency resource set 2.
  • the time-frequency resource set 1 may be configured to calculate an initial value of the demodulation pilot sequence by using the set first parameter (for example, the nSCID is 0 and the X is the cell ID), and the time-frequency resource set 2 may adopt the second parameter configured by the network side. (For example, if the nSCID is 0, the X configured on the network side is X (0), or the nSCID is 1, and the X configured on the network side is X (1)), the initial value of the demodulation pilot sequence is calculated.
  • the set first parameter for example, the nSCID is 0 and the X is the cell ID
  • the time-frequency resource set 2 may adopt the second parameter configured by the network side.
  • the resource set is divided according to the DCI format.
  • the first resource set may include a physical resource unit set corresponding to the first DCI format set
  • the second resource set may include a physical resource unit set corresponding to the second DCI format set.
  • the first DCI format set may include formats 1A, IB, and P 1C in the DCI format
  • the second DCI format set may include other formats than the above formats 1A, IB, and 1C.
  • the first resource set generally uses the set fixed parameter to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the initial ID of the sequence; the second resource set can generally calculate the initial value of the demodulation pilot sequence by using parameters configured on the network side, that is, the scrambling code ID configured on the network side, and the initial ID of the demodulation pilot sequence configured on the network side;
  • the initial value of the demodulation pilot sequence may be calculated by using the set fixed parameter and the parameter configured on the network side, for example, the scrambling code ID set to 0 or 1, and the initial of the demodulation pilot sequence configured on the network side. ID; or, the scrambling code ID configured on the network side, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located. 6.
  • the resource set is divided according to the type of control signaling.
  • the first resource set may include a physical resource unit set for transmitting common control signaling
  • second The set of resources may comprise a set of physical resource units for transmitting a set of user equipment UE specific control signaling.
  • the common control signaling may refer to cell-specific control signaling, including control signaling for scheduling system messages, control signaling indicating power control parameters, etc.;
  • UE-specific control signaling may refer to user level for uplink data. Control signaling for scheduling or downlink data scheduling, and the like.
  • the first resource set may generally calculate the initial value of the demodulation pilot sequence by using the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation guide set to the cell ID of the cell where the UE is located.
  • the initial ID of the frequency sequence is the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation guide set to the cell ID of the cell where the UE is located.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or, the network The scrambling code ID of the side configuration, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • the resource set is divided according to the control signaling of the CRC that is masked by different RNTIs.
  • the first resource set may include SI-RNTI, P-RNTI, temporary RNTI, and RA-RNTI.
  • At least one of the SPS-RNTI and the TPC-RNTI performs a CRC-masked control signaling corresponding to the physical resource unit set, and the second resource set may include a CRC corresponding to the CRC-masked control signaling according to the C-RNTI Resource unit collection.
  • the first resource set may generally calculate the initial value of the demodulation pilot sequence by using the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation guide set to the cell ID of the cell where the UE is located.
  • the initial ID of the frequency sequence is the set fixed parameter, that is, the scrambling code ID set to 0 or 1, and the demodulation guide set to the cell ID of the cell where the UE is located.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or, the network The scrambling code ID of the side configuration, and the initial ID of the demodulation pilot sequence set to the cell ID of the cell in which the UE is located.
  • the resource set is divided according to the pilot port.
  • the first resource set may include a physical resource unit set corresponding to the first pilot port set
  • the second resource set may include a physical resource unit set corresponding to the second pilot port set.
  • the first port set may be a port in a first Code Division Multiplexing (CDM) group
  • the second port set is a port in a second CDM group.
  • CDM Code Division Multiplexing
  • the port number of the port included in the first CDM group is 7, 8, 11, 13,
  • the port number of the port included in the second CDM group is 9, 10, 12, 14.
  • FIG. 6 is a schematic diagram of a resource set divided by a port according to an embodiment of the present invention:
  • an RE marked with the letter “A” indicates that the physical resource corresponding to the port in the first port set is fast, and the letter “B” is used.
  • the labeled RE identifies the physical resource block corresponding to the port in the second port set.
  • the first resource set generally uses the set fixed parameter to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the initial ID of the sequence is, a scrambling code ID set to 0 or 1, and a demodulation pilot set to a cell ID of a cell where the UE is located.
  • the second resource set may be configured by using a parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, that is, a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or
  • the set fixed parameter is combined with the parameter configured on the network side to calculate an initial value of the demodulation pilot sequence, for example, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or, the network
  • Step 701 The base station determines, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes the first resource set and the second resource set, where the parameter includes the first parameter and the second parameter.
  • the resource set includes a transmission resource for transmitting the E-PDCCH
  • the demodulation pilot sequence is a pilot sequence used for demodulating the E-PDCCH.
  • the first mode is a set of resources divided according to the physical resource.
  • the first resource set may include a set of physical resource units set on the system bandwidth
  • the second set of resources may include the set physical resources on the system bandwidth.
  • a set of physical resource units outside the set of units, the set of set physical resource units may be obtained by a cell ID, and/or a slot number.
  • the physical resource unit set included in the first resource set may be a physical resource unit set configured in the physical resource unit set
  • the physical resource unit set included in the second resource set may be a physical configured to the UE.
  • a set of physical resource units included in the second set of resources is a set of physical resource units other than the set of physical resource units included in the first set of resources.
  • the second mode is a set of resources divided according to physical resources.
  • the first set of resources may include a set of physical resource units that are transmitted according to a transmission mode
  • the second set of resources may include a centralized mode according to the transmission mode.
  • the resource set is a resource set divided according to physical resources, and the first resource set can be A set of physical resource units transmitted in accordance with beamforming, the second set of resources may include a set of physical resource units transmitted in a diversity manner.
  • the fourth mode the resource set is a set of resources divided according to the logical resource.
  • the first resource set may include a physical resource unit set corresponding to the common search interval
  • the second resource set may include a physical resource unit set corresponding to the user-specific search interval. .
  • the fifth mode is a resource set divided according to the DCI format, where the first resource set may include a physical resource unit set corresponding to the first DCI format set, and the second resource set may include a second DCI format set corresponding to the second DCI format set.
  • the resource set is a resource set divided according to the type of control signaling, where the first resource set may include a physical resource unit set for transmitting common control signaling, and the second resource set may include a UE for transmitting A collection of physical resource elements for a particular set of control signaling.
  • the seventh mode is a resource set divided by the control signaling of the CRC that is masked according to different RNTIs.
  • the first resource set may include the SI-RNTI, the P-RNTI, the temporary RNTI, and the RA-RNTI. At least one of the SPS-RNTI and the TPC-RNTI performs a CRC-masked control signaling corresponding to the physical resource unit set, and the second resource set may include a CRC corresponding to the CRC-masked control signaling according to the C-RNTI Resource unit collection.
  • the resource set is a set of resources divided according to a pilot port, where the first set of resources may include a set of physical resource units corresponding to the first set of pilot ports, and the second set of resources may include a set of second pilot ports A corresponding set of physical resource units.
  • the physical resource unit set may include: at least one eREG, or at least one resource unit set corresponding to the eCCE, or at least one PRB, or at least one PRB pair.
  • Step 702 Generate an initial value of the first demodulation pilot sequence according to the first parameter on the first resource set, and generate an initial value of the second demodulation pilot sequence according to the second parameter on the second resource set.
  • the formula for calculating the initial value of the demodulation pilot sequence is consistent with the prior art, and three parameters are required, namely, a slot number, a scrambling code ID, and an initial ID of the demodulation pilot sequence.
  • the first parameter may include: a scrambling code ID set to 0 or 1, and an initial ID of a first demodulation pilot sequence set to a cell ID of a cell where the UE is located;
  • the second parameter may include: network side configuration The scrambling code ID, and the initial ID of the second demodulation pilot sequence configured on the network side; or, the scrambling code ID set to 0 or 1, and the initial ID of the second demodulation pilot sequence configured on the network side; And a scrambling code ID configured on the network side, and an initial ID of a second demodulation pilot sequence set to a cell ID of a cell in which the UE is located.
  • the scrambling code ID configured on the network side may include: the network side is a physical downlink shared channel PDSCH The configured scrambling code ID; or the network side is the scrambling code ID of the enhanced physical downlink control channel E-PDCCH configuration; the initial ID of the second demodulation pilot sequence configured on the network side may include: The initial ID of the demodulation pilot sequence configured by the PDSCH; or the network side is the initial ID of the demodulation pilot sequence configured by the E-PDCCH.
  • Step 703 Obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively.
  • Step 704 Send the demodulation pilot sequence on a time-frequency resource corresponding to the demodulation pilot sequence.
  • the present invention also provides an embodiment of a pilot configuration apparatus and a pilot transmission apparatus.
  • FIG. 8 is a block diagram of an embodiment of a pilot configuration apparatus according to the present invention.
  • the apparatus is generally disposed on a UE side, and is configured to obtain a demodulation pilot sequence for demodulating an E-PDCCH received by a UE:
  • the pilot configuration apparatus includes: a determining unit 810, a generating unit 820, and an obtaining unit 830.
  • the determining unit 810 is configured to determine, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes a first resource set and a second resource set, where the parameter includes the first parameter and the first Two parameters
  • the generating unit 820 is configured to generate an initial value of the first demodulation pilot sequence according to the first parameter on the first resource set, and generate a second solution according to the second parameter on the second resource set Adjusting the initial value of the pilot sequence;
  • the obtaining unit 830 is configured to obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively.
  • the method for dividing the resource set may include the following methods:
  • the first mode is a set of resources divided according to the physical resource.
  • the first resource set may include a set of physical resource units set on the system bandwidth
  • the second set of resources may include the set physical resources on the system bandwidth.
  • a set of physical resource units outside the set of units, and the set of physical resource units that are set may Obtained by cell ID, and/or slot number.
  • the physical resource unit set included in the first resource set may be a physical resource unit set configured in the physical resource unit set
  • the physical resource unit set included in the second resource set may be a physical configured to the UE.
  • a set of physical resource units included in the second set of resources is a set of physical resource units other than the set of physical resource units included in the first set of resources.
  • the second mode is a set of resources divided according to physical resources.
  • the first set of resources may include a set of physical resource units that are transmitted according to a transmission mode
  • the second set of resources may include a centralized mode according to the transmission mode.
  • the third mode the resource set is a resource set divided according to the physical resource, where the first resource set may include a physical resource unit set transmitted according to beamforming, and the second resource set may include a physical resource unit set transmitted according to the diversity .
  • the fourth mode the resource set is a set of resources divided according to the logical resource.
  • the first resource set may include a physical resource unit set corresponding to the common search interval
  • the second resource set may include a physical resource unit set corresponding to the user-specific search interval. .
  • the fifth mode is a resource set divided according to the DCI format, where the first resource set may include a physical resource unit set corresponding to the first DCI format set, and the second resource set may include a second DCI format set corresponding to the second DCI format set.
  • the resource set is a resource set divided according to the type of control signaling, where the first resource set may include a physical resource unit set for transmitting common control signaling, and the second resource set may include a UE for transmitting A collection of physical resource elements for a particular set of control signaling.
  • the seventh mode is a resource set divided by the control signaling of the CRC that is masked according to different RNTIs.
  • the first resource set may include the SI-RNTI, the P-RNTI, the temporary RNTI, and the RA-RNTI. At least one of the SPS-RNTI and the TPC-RNTI performs a CRC-masked control signaling corresponding to the physical resource unit set, and the second resource set may include a CRC corresponding to the CRC-masked control signaling according to the C-RNTI Resource unit collection.
  • the resource set is a set of resources divided according to a pilot port, where the first set of resources may include a set of physical resource units corresponding to the first set of pilot ports, and the second set of resources may include a set of second pilot ports A corresponding set of physical resource units.
  • the physical resource unit set may include: at least one eREG, or at least one resource unit set corresponding to the eCCE, or at least one PRB, or at least one PRB pair.
  • the first parameter may include: a scrambling code ID set to 0, and a small set to the cell where the UE is located.
  • the initial ID of the demodulation pilot sequence of the area ID; the second parameter may include: a scrambling code ID configured on the network side, and an initial ID of the demodulation pilot sequence configured on the network side; or, a scrambling code set to 0 or 1 ID, and an initial ID of a demodulation pilot sequence configured on the network side; or, a scrambling code ID configured on the network side, and an initial ID of a demodulation pilot sequence set to a cell ID of a cell in which the UE is located.
  • the scrambling code ID configured on the network side may include: the scrambling code ID configured by the network side for the PDSCH; or the scrambling code ID configured by the E-PDCCH on the network side; and the second demodulation guide configured on the network side
  • the initial ID of the frequency sequence may include: an initial ID of the demodulation pilot sequence configured by the network side for the PDSCH; or, the network side is an initial ID of the demodulation pilot sequence configured by the E-PDCCH.
  • FIG. 9 is a block diagram of an embodiment of a pilot transmitting apparatus according to the present invention.
  • the apparatus is generally disposed at a base station side.
  • the pilot transmitting apparatus includes: a determining unit 910, a generating unit 920, an obtaining unit 930, and a sending unit.
  • the determining unit 910 is configured to determine, according to the resource set, a parameter used to generate an initial value of the demodulation pilot sequence, where the resource set includes a first resource set and a second resource set, where the parameter includes the first parameter and the second parameter ;
  • the generating unit 920 is configured to generate an initial value of the first demodulation pilot sequence according to the first parameter on the first resource set, and generate a second solution according to the second parameter on the second resource set Adjusting the initial value of the pilot sequence;
  • the obtaining unit 930 is configured to obtain a demodulation pilot sequence by using an initial value of the first demodulation pilot sequence and an initial value of the second demodulation pilot sequence, respectively;
  • the sending unit 940 is configured to send the demodulation pilot sequence on a time-frequency resource corresponding to the demodulation pilot sequence.
  • the method for dividing the resource set may include the following methods:
  • the first mode is a set of resources divided according to the physical resource.
  • the first resource set may include a set of physical resource units set on the system bandwidth
  • the second set of resources may include the set physical resources on the system bandwidth.
  • a set of physical resource units outside the set of units, the set of set physical resource units may be obtained by a cell ID, and/or a slot number.
  • the physical resource unit set included in the first resource set may be a physical resource unit set configured in the physical resource unit set
  • the physical resource unit set included in the second resource set may be a physical configured to the UE.
  • a set of resource units; or a set of physical resource units included in the second set of resources is a set of physical resource units configured for the UE, except for the first set of resources A collection of other physical resource units other than the set of physical resource units.
  • the second mode is a set of resources divided according to physical resources.
  • the first set of resources may include a set of physical resource units that are transmitted according to a transmission mode
  • the second set of resources may include a centralized mode according to the transmission mode.
  • the third mode the resource set is a resource set divided according to the physical resource, where the first resource set may include a physical resource unit set transmitted according to beamforming, and the second resource set may include a physical resource unit set transmitted according to the diversity .
  • the fourth mode the resource set is a set of resources divided according to the logical resource.
  • the first resource set may include a physical resource unit set corresponding to the common search interval
  • the second resource set may include a physical resource unit set corresponding to the user-specific search interval. .
  • the fifth mode is a resource set divided according to the DCI format, where the first resource set may include a physical resource unit set corresponding to the first DCI format set, and the second resource set may include a second DCI format set corresponding to the second DCI format set.
  • the resource set is a resource set divided according to the type of control signaling, where the first resource set may include a physical resource unit set for transmitting common control signaling, and the second resource set may include a UE for transmitting A collection of physical resource elements for a particular set of control signaling.
  • the seventh mode is a resource set divided by the control signaling of the CRC that is masked according to different RNTIs.
  • the first resource set may include the SI-RNTI, the P-RNTI, the temporary RNTI, and the RA-RNTI. At least one of the SPS-RNTI and the TPC-RNTI performs a CRC-masked control signaling corresponding to the physical resource unit set, and the second resource set may include a CRC corresponding to the CRC-masked control signaling according to the C-RNTI Resource unit collection.
  • the resource set is a set of resources divided according to a pilot port, where the first set of resources may include a set of physical resource units corresponding to the first set of pilot ports, and the second set of resources may include a set of second pilot ports A corresponding set of physical resource units.
  • the physical resource unit set may include: at least one eREG, or at least one resource unit set corresponding to the eCCE, or at least one PRB, or at least one PRB pair.
  • the first parameter may include: a scrambling code ID set to 0, and an initial ID of a demodulation pilot sequence set to a cell ID of a cell where the UE is located;
  • the second parameter may include: a scrambling code ID configured on the network side And an initial ID of the demodulation pilot sequence configured on the network side; or, a scrambling code ID set to 0 or 1, and an initial ID of the demodulation pilot sequence configured on the network side; or a scrambling code ID configured on the network side And an initial ID of a demodulation pilot sequence set to a cell ID of a cell in which the UE is located.
  • the scrambling code ID configured on the network side may include: The network side is the scrambling code ID configured for the PDSCH; or the network side is the scrambling code ID configured by the E-PDCCH; the initial ID of the second demodulation pilot sequence configured on the network side may include: the network side is configured for the PDSCH Or initial ID of the demodulation pilot sequence; or, the network side is an initial ID of the demodulation pilot sequence configured by the E-PDCCH.
  • the UE determines, according to the resource set, a parameter for generating an initial value of the demodulation pilot sequence, where the resource set includes the first resource set and the second resource set, where the parameter includes the first parameter and the second parameter, where Generating an initial value of the first demodulation pilot sequence according to the first parameter, and generating an initial value of the second demodulation pilot sequence according to the second parameter on the second resource set, respectively, by using the first demodulation guide
  • the initial value of the frequency sequence and the initial value of the second demodulation pilot sequence obtain a demodulation pilot sequence.
  • the demodulation is obtained
  • the parameters for calculating the initial value of the demodulation pilot sequence are respectively configured according to the pre-divided resource set. Therefore, after receiving the E-PDCCH, the E-PDCCH may be associated with the E-PDCCH.
  • the resource set, the initial value of the demodulation pilot sequence is calculated according to the set parameters, and then the demodulation pilot sequence used for demodulating the E-PDCCH is obtained to improve the demodulation performance of the E-PDCCH.
  • the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a diskette, an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or in some portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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Abstract

公开了导频配置方法、发送方法及装置,该方法包括:UE根据划分的资源集合确定用于生成导频序列初始值的参数;在第一资源集合上按照第一参数生成导频序列的初始值,在第二资源集合上按照第二参数生成导频序列的初始值;通过所述导频序列的初始值获得解调导频序列。本发明实施例中,在获取解调E-PDCCH的导频序列时,由于计算导频序列的初始值的参数按照预先划分的资源集合分别进行了配置,因此在接收到E-PDCCH后,可以按照该E-PDCCH所属的资源集合,按照设置的参数计算导频序列的初始值,进而获得用于解调E-PDCCH的导频序列,以提高E-PDCCH的解调性能。

Description

导频配置方法、 发送方法及装置
技术领域 本发明涉及通信技术领域, 特别涉及导频配置方法、 发送方法及装置。 背景技术
在长期演进 (Long Term Evolution, LTE ) 的通信系统中, 引入了协作多点 传输 (Coordinated Multi-Point, CoMP ) 技术, 以提高系统的频谱效率和小区 边缘用户性能。 由于应用 CoMP 技术的通信系统中用户数增多, 现有用于传输用 户调度指示信息的物理下行控制信道 ( Physical Downl ink Control Channel, PDCCH) 资源已经难以满足调度用户的需求, 因此进一步在时频资源上定义了增 强物理下行控制信道 ( Enhanced-Physical Downl ink Control Channel, E-PDCCH) 资源,该 E-PDCCH资源占用现有的物理下行共享信道(Physical Downl ink Shared Channel , PDSCH)资源的一部分, E-PDCCH资源与 PDSCH资源之间采用频分多路 复用 ( Frequency Division Multiplexing, FDM) 共享时频资源。
由于 E-PDCCH复用了一部分 PDSCH资源, 因此用户设备 (User Equipment , UE) 采用与 PDSCH—样的解调方式, 即通过解调导频 (Demodulation Reference Signal , DMRS) 对 E-PDCCH进行解调。 UE在每个时隙上获得 DMRS时, 需要产生 DMRS 的初始值, DMRS 初始值的产生涉及三个参数, 包括时隙号、 基站通知的扰 码 ID, 以及网络侧从候选 ID集合中选择的用于本时隙传输的 DMRS的初始 ID。 上述三个参数中, 扰码 ID和 DMRS的初始 ID需要通过 E-PDCCH传输, 但是由于 计算 DMRS的参数需要通过解调 E-PDCCH获得, 而解调 E-PDCCH又需要 DMRS, 因 此按照现有方式, UE难以获得控制信道 E-PDCCH的 DMRS, 从而无法解调 E-PDCCH 以获得调度指示信息。 发明内容
有鉴于此, 本发明实施例提供导频配置方法、发送方法及装置, 以解决现有技术 中难以获得用于解调控制信道 E-PDCCH的 DMRS的问题。
第一方面, 提供一种导频配置方法, 所述方法包括:
用户设备 UE根据资源集合确定用于生成解调导频序列的初始值的参数, 所述资 源集合包含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参数; 在所述第一资源集合上按照所述第一参数生成第一解调导频序列的初始值,在所 述第二资源集合上按照所述第二参数生成第二解调导频序列的初始值;
分别通过所述第一解调导频序列的初始值和第二解调导频序列的初始值获得解 调导频序列。
结合第一方面,在第一种可能的实现方式中,所述第一资源集合包括系统带宽上 设置的物理资源单元集合,所述第二资源集合包括所述系统带宽上除所述设置的物理 资源单元集合外的物理资源单元集合。
结合第一方面的第一种可能的实现方式,所述第一资源集合包括的物理资源单元 集合为物理资源单元集合中除配置给 UE的物理资源单元集合, 所述第二资源集合包 括的物理资源单元集合为配置给所述 UE的物理资源单元集合; 或者, 所述第二资源 集合包括的物理资源单元集合为配置给 UE的物理资源单元集合中, 除所述第一资源 集合中包括的物理资源单元集合外的其它物理资源单元集合。
结合第一方面,在第二种可能的实现方式中,所述第一资源集合包括按照传输模 式为离散式进行传输的物理资源单元集合,所述第二资源集合包括按照传输模式为集 中式进行传输的物理资源单元集合。
结合第一方面,在第三种可能的实现方式中,所述第一资源集合包括按照波束赋 形传输的物理资源单元集合,所述第二资源集合包括按照分集式传输的物理资源单元 鱼朱 A n o
结合第一方面,在第四种可能的实现方式中,所述第一资源集合包括公共搜索区 间对应的物理资源单元集合,所述第二资源集合包括用户特定搜索区间对应的物理资 源单元集合。
结合第一方面,在第五种可能的实现方式中,所述第一资源集合包括传输第一下 行控制信息格式 DCI format集合对应的物理资源单元集合, 所述第二资源集合包括 传输第二 DCI format 集合对应的物理资源单元集合。
结合第一方面,在第六种可能的实现方式中,所述第一资源集合包括用于传输公 共控制信令的物理资源单元集合, 所述第二资源集合包括用于传输用户设备 UE特定 控制信令集合的物理资源单元集合。
结合第一方面,在第七种可能的实现方式中,所述第一资源集合包括按照系统信 息-无线网络临时标识 S I -RNT I, 寻呼消息 -无线网络临时标识 P-RNT I, 临时 RNT I, 随机接入 -无线网络临时标识 RA-RNTI , 半静态 -无线网络临时标识 SPS-RNTI , 发射功 率控制 -无线网络临时标识 TPC-RNTI中的至少一种进行 CRC加掩码的控制信令对应的 物理资源单元集合,所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控制信令对应的物理资源单元集合。
结合第一方面,在第八种可能的实现方式中,所述第一资源集合包括第一导频端 口集合对应的物理资源单元集合,所述第二资源集合包括第二导频端口集合对应的物 理资源单元集合。
结合第一方面, 在第九种可能的实现方式中, 所述第一参数包括: 设置为 0或 1 的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第一解调导频序列的初始 ID; 所 述第二参数包括: 网络侧配置的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频 序列的初始 ID。
结合第一方面的第九种可能的实现方式, 所述网络侧配置的扰码 ID包括: 所述网络侧为物理下行共享信道 PDSCH配置的扰码 ID; 或者, 所述网络侧为增 强的物理下行控制信道 E-PDCCH配置的扰码 ID; 所述网络侧配置的第二解调导频序 列的初始 ID包括: 所述网络侧为 PDSCH配置的解调导频序列的初始 ID; 或者, 所述 网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
第二方面, 提供一种导频发送方法, 所述方法包括:
基站根据资源集合确定用于生成解调导频序列的初始值的参数,所述资源集合包 含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参数;
在所述第一资源集合上按照所述第一参数生成第一解调导频序列的初始值,在所 述第二资源集合上按照所述第二参数生成第二解调导频序列的初始值;
分别通过所述第一解调导频序列的初始值和第二解调导频序列的初始值获得解 调导频序列;
在所述解调导频序列对应的时频资源上发送所述解调导频序列。
结合第二方面,在第一种可能的实现方式中,所述第一资源集合包括系统带宽上 设置的物理资源单元集合,所述第二资源集合包括所述系统带宽上除所述设置的物理 资源单元集合外的物理资源单元集合; 或者,所述第一资源集合包括按照传输模式为 离散式进行传输的物理资源单元集合,所述第二资源集合包括按照传输模式为集中式 进行传输的物理资源单元集合; 或者,所述第一资源集合包括按照波束赋形传输的物 理资源单元集合,所述第二资源集合包括按照分集式传输的物理资源单元集合;或者, 所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资源集合包 括用户特定搜索区间对应的物理资源单元集合; 或者,所述第一资源集合包括传输第 一下行控制信息格式 DCI format集合对应的物理资源单元集合, 所述第二资源集合 包括传输第二 DCI format 集合对应的物理资源单元集合; 或者, 所述第一资源集合 包括用于传输公共控制信令的物理资源单元集合,所述第二资源集合包括用于传输用 户设备 UE特定控制信令集合的物理资源单元集合; 或者, 所述第一资源集合包括按 照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消息 -无线网络临时标识 P-RNTI , 临时 RNTI, 随机接入 -无线网络临时标识 RA-RNTI, 半静态 -无线网络临时标识 SPS-RNTI, 发射功率控制 -无线网络临时标识 TPC-RNTI中的至少一种进行 CRC加掩码的控制信令 对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识
C-RNTI进行 CRC加掩码的控制信令对应的物理资源单元集合; 或者, 所述第一资源 集合包括第一导频端口集合对应的物理资源单元集合,所述第二资源集合包括第二导 频端口集合对应的物理资源单元集合。
结合第二方面, 在第二种可能的实现方式中, 所述物理资源单元集合包括: 至少 一个增强资源单元组 eREG, 或者至少一个增强控制信道单元 eCCE对应的资源单元集 合, 或者至少一个物理资源块 PRB, 或者至少一个物理资源单元对 PRB pair。
结合第二方面, 在第三种可能的实现方式中, 所述第一参数包括: 设置为 0或 1 的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第一解调导频序列的初始 ID; 所 述第二参数包括: 网络侧配置的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频 序列的初始 ID。
结合第二方面的第三种可能的实现方式,在第四种可能的实现方式中,所述网络 侧配置的扰码 ID包括:所述网络侧为物理下行共享信道 PDSCH配置的扰码 ID;或者, 所述网络侧为增强的物理下行控制信道 E-PDCCH配置的扰码 ID; 所述网络侧配置的 第二解调导频序列的初始 ID包括: 所述网络侧为 PDSCH配置的解调导频序列的初始 ID; 或者, 所述网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
第三方面, 提供一种导频配置装置, 所述装置包括:
确定单元,用于根据资源集合确定用于生成解调导频序列的初始值的参数,所述 资源集合包含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参数; 生成单元,用于在所述第一资源集合上按照所述第一参数生成第一解调导频序列 的初始值, 在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初始 值;
获得单元,用于分别通过所述第一解调导频序列的初始值和第二解调导频序列的 初始值获得解调导频序列。
结合第三方面,在第一种可能的实现方式中,所述第一资源集合包括系统带宽上 设置的物理资源单元集合,所述第二资源集合包括所述系统带宽上除所述设置的物理 资源单元集合外的物理资源单元集合; 或者,所述第一资源集合包括按照传输模式为 离散式进行传输的物理资源单元集合,所述第二资源集合包括按照传输模式为集中式 进行传输的物理资源单元集合; 或者,所述第一资源集合包括按照波束赋形传输的物 理资源单元集合,所述第二资源集合包括按照分集式传输的物理资源单元集合;或者, 所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资源集合包 括用户特定搜索区间对应的物理资源单元集合; 或者,所述第一资源集合包括传输第 一下行控制信息格式 DCI format集合对应的物理资源单元集合, 所述第二资源集合 包括传输第二 DCI format 集合对应的物理资源单元集合; 或者, 所述第一资源集合 包括用于传输公共控制信令的物理资源单元集合,所述第二资源集合包括用于传输用 户设备 UE特定控制信令集合的物理资源单元集合; 或者, 所述第一资源集合包括按 照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消息 -无线网络临时标识 P-RNTI , 临时 RNTI, 随机接入 -无线网络临时标识 RA-RNTI, 半静态 -无线网络临时标识 SPS-RNTI, 发射功率控制 -无线网络临时标识 TPC-RNTI中的至少一种进行 CRC加掩码的控制信令 对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控制信令对应的物理资源单元集合; 或者, 所述第一资源 集合包括第一导频端口集合对应的物理资源单元集合,所述第二资源集合包括第二导 频端口集合对应的物理资源单元集合。
结合第三方面,在第二种可能的实现方式中,所述确定单元确定的第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第一解调导频序列 的初始 ID; 所述确定单元确定的第二参数包括: 网络侧配置的扰码 ID, 和网络侧配 置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的 第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小 区的小区 ID的第二解调导频序列的初始 ID。
第四方面, 提供一种导频发送装置, 所述装置包括:
确定单元,用于根据资源集合确定用于生成解调导频序列的初始值的参数,所述 资源集合包含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参数; 生成单元,用于在所述第一资源集合上按照所述第一参数生成第一解调导频序列 的初始值, 在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初始 值;
获得单元,用于分别通过所述第一解调导频序列的初始值和第二解调导频序列的 初始值获得解调导频序列;
发送单元, 用于在所述解调导频序列对应的时频资源上发送所述解调导频序列。 结合第四方面,在第一种可能的实现方式中,所述第一资源集合包括系统带宽上 设置的物理资源单元集合,所述第二资源集合包括所述系统带宽上除所述设置的物理 资源单元集合外的物理资源单元集合; 或者,所述第一资源集合包括按照传输模式为 离散式进行传输的物理资源单元集合,所述第二资源集合包括按照传输模式为集中式 进行传输的物理资源单元集合; 或者,所述第一资源集合包括按照波束赋形传输的物 理资源单元集合,所述第二资源集合包括按照分集式传输的物理资源单元集合;或者, 所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资源集合包 括用户特定搜索区间对应的物理资源单元集合; 或者,所述第一资源集合包括传输第 一下行控制信息格式 DCI format集合对应的物理资源单元集合, 所述第二资源集合 包括传输第二 DCI format 集合对应的物理资源单元集合; 或者, 所述第一资源集合 包括用于传输公共控制信令的物理资源单元集合,所述第二资源集合包括用于传输用 户设备 UE特定控制信令集合的物理资源单元集合; 或者, 所述第一资源集合包括按 照系统信息 -无线网络临时标识 SI-RNTI, 寻呼消息 -无线网络临时标识 P-RNTI, 临时 RNTI, 随机接入 -无线网络临时标识 RA-RNTI, 半静态 -无线网络临时标识 SPS-RNTI, 发射功率控制 -无线网络临时标识 TPC-RNTI中的至少一种进行 CRC加掩码的控制信令 对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控制信令对应的物理资源单元集合; 或者, 所述第一资源 集合包括第一导频端口集合对应的物理资源单元集合,所述第二资源集合包括第二导 频端口集合对应的物理资源单元集合。
结合第四方面,在第二种可能的实现方式中,所述确定单元确定的第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第一解调导频序列 的初始 ID; 所述确定单元确定的第二参数包括: 网络侧配置的扰码 ID, 和网络侧配 置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的 第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小 区的小区 ID的第二解调导频序列的初始 ID。
通过上述方案可见, UE 根据资源集合确定用于生成解调导频序列的初始值的参 数, 该资源集合包含第一资源集合和第二资源集合, 参数包括第一参数和第二参数, 在第一资源集合上按照第一参数生成第一解调导频序列的初始值,在第二资源集合上 按照第二参数生成第二解调导频序列的初始值,分别通过第一解调导频序列的初始值 和第二解调导频序列的初始值获得解调导频序列。 本发明实施例中, 在获取解调 E-PDCCH的解调导频序列时, 由于计算解调导频序列的初始值的参数按照预先划分的 资源集合分别进行了配置, 因此在接收到 E-PDCCH后,可以按照该 E-PDCCH所属的资 源集合, 按照设置的参数计算解调导频序列的初始值, 进而获得用于解调 E-PDCCH 的解调导频序列, 以提高 E-PDCCH的解调性能。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现 有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅 是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前 提下, 还可以根据这些附图获得其他的附图。
图 1为本发明导频配置方法的实施例流程图;
图 2为 R11系统中时频资源的分配示意图:
图 3为在 CoMP通信系统中应用本发明实施例的一种应用场景示意图; 图 4为本发明实施例中按照物理资源划分的资源集合的示意图;
图 5 为本发明实施例中按照逻辑资源划分的资源集合与时频资源的映射关系示 意图;
图 6为本发明实施例中按照端口划分的资源集合的示意图;
图 7为本发明导频发送方法的实施例流程图;
图 8为本发明导频配置装置的实施例框图;
图 9为本发明导频发送装置的实施例框图。 具体实施方式
本发明如下实施例提供了导频配置方法、 发送方法及装置。
为了使本技术领域的人员更好地理解本发明实施例中的技术方案,并使本发明实 施例的上述目的、特征和优点能够更加明显易懂, 下面结合附图对本发明实施例中技 术方案作进一步详细的说明。
参见图 1, 为本发明导频配置方法的实施例流程图, 该实施例从 UE侧描述了导 频配置过程:
步骤 101 : UE根据资源集合确定用于生成解调导频序列的初始值的参数, 资源集 合包含第一资源集合和第二资源集合, 参数包括第一参数和第二参数。
本发明导频配置方法实施例可以应用在使用 CoMP技术的 R1 1系统中, 参见 图 2, 为 R1 1系统中时频资源的分配示意图。 R1 1系统在时频资源上除了定义现 有用于传输用户调度指示信息的 PDCCH资源外, 还定义了 E-PDCCH资源, 由图 2 可见, 该 E-PDCCH资源占用现有的 PDSCH资源的一部分, E-PDCCH资源与 PDSCH 资源之间采用 FDM方式共享时频资源。
现有技术中, 当 E-PDCCH复用了一部分 PDSCH资源时, 需要采用与 PDSCH—样的 解调方式,通过 DMRS对 E-PDCCH进行解调。但是,由于 UE难以获得控制信道 E-PDCCH 的 DMRS , 从而无法解调 E-PDCCH以获得调度指示信息。 因此本发明实施例用于配 置解调 E-PDCCH的解调导频序列, 其中资源集合中的时频资源即为 E-PDCCH资源, 解调导频序列为用于解调所述 E-PDCCH的导频序列。在对资源集合划分后得到的第一 资源集合和第二资源集合中, 分别包含了原资源集合中的一部分 E-PDCCH资源。
本发明实施例中在进行资源集合划分时, 可以采用如下几种方式:
第一种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括系统带宽上设置的物理资源单元集合,第二资源集合可以包括系统带宽上除所述 设置的物理资源单元集合外的物理资源单元集合,所述设置的物理资源单元集合可以 通过小区 ID, 和 /或时隙号获得。 其中, 所述第一资源集合包括的物理资源单元集合 可以为物理资源单元集合中除配置给 UE的物理资源单元集合, 第二资源集合包括的 物理资源单元集合可以为配置给所述 UE的物理资源单元集合; 或者, 第二资源集合 包括的物理资源单元集合为配置给 UE的物理资源单元集合中, 除第一资源集合中包 括的物理资源单元集合外的其它物理资源单元集合。
第二种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照传输模式为离散式进行传输的物理资源单元集合,第二资源集合可以包括按 照传输模式为集中式进行传输的物理资源单元集合。
第三种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照波束赋形传输的物理资源单元集合,第二资源集合可以包括按照分集式传输 的物理资源单元集合。 第四种方式: 资源集合为按照逻辑资源划分的资源集合,此时第一资源集合可以 包括公共搜索区间对应的物理资源单元集合,第二资源集合可以包括用户特定搜索区 间对应的物理资源单元集合。
第五种方式: 资源集合为按照下行控制信息 (Downl ink Control Information, DCI )格式(format )划分的资源集合,此时第一资源集合可以包括传输第一 DCI format 集合对应的物理资源单元集合, 第二资源集合可以包括传输第二 DCI format 集合对 应的物理资源单元集合。
第六种方式: 资源集合为按照控制信令的类型划分的资源集合,此时第一资源集 合可以包括用于传输公共控制信令的物理资源单元集合,第二资源集合可以包括用于 传输 UE特定控制信令集合的物理资源单元集合。
第七种方式: 资源集合为按照不同无线网络临时标识(Radio Network Temporary Identifier, RNTI ) 进行加掩码的循环冗余校验 ( Cycl ic Redundancy Check, CRC) 的控制信令划分的资源集合, 此时第一资源集合可以包括按照系统信息 -无线网络临 时标识 ( System Information-Radio Network Temporary Identifier, SI-RNTI ), 寻呼消息 -无线网络临时标识 (Paging-Radio Network Temporary Identifier , P-RNTI ), 临时 RNTI , 随机接入 -无线网络临时标识 (Random Access- Radio Network Temporary Identifier, RA-RNTI ) , 半静态 -无线网络临时标识 (Semi Persistent- Radio Network Temporary Identifier, SPS-RNTI ), 发射功率控制-无线网络临时标 识 ( Transmit Power Control-Radio Network Temporary Identifier, TPC-RNTI ) 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元集合,第二资源集合可 以包括按照小区 -无线网络临时标识 (Cel l-Radio Network Temporary Identifier, C-RNTI ) 进行 CRC加掩码的控制信令对应的物理资源单元集合。
第八种方式: 资源集合为按照导频端口划分的资源集合,此时第一资源集合可以 包括第一导频端口集合对应的物理资源单元集合,第二资源集合可以包括第二导频端 口集合对应的物理资源单元集合。
上述几种实现方式中, 物理资源单元集合可以包括: 至少一个增强资源单元组 ( enhanced Resource Element Group , eREG ) , 或者至少一个增强控制信道单元 (enhanced Control Channel Element, eCCE) 对应的资源单元集合, 或者至少一个 物理资源块 (Physical Resource Block , PRB ) , 或者至少一个物理资源单元对 (Physical Resource Block pair, PRB pair)。
步骤 102: 在第一资源集合上按照第一参数生成第一解调导频序列的初始值, 在 第二资源集合上按照第二参数生成第二解调导频序列的初始值。
本发明实施例中, 计算解调导频序列的初始值的公式与现有技术一致, 需要得到 三个参数, 分别为时隙号、 扰码 ID, 以及解调导频序列的初始 ID
其中, 下式为解调导频序列的初始值的生成公式:
Cimt = (L"s / 2」 + l)x(2 + l)x216 + 上式中, ^^表示解调导频序列的初始值, 《s表示时隙号, 《sem为扰码 ID X 为解调导频序列的初始 ID 的值可以从候选 ID集合中选择, L 」表示取整数。 上 述三个参数中, 《s可以由 UE通过下行同步获得, 而《sem和 则需要预先配置, 才能 通过上式计算解调导频序列的初始值。
本步骤中,第一参数为用于计算第一资源集合中 E-PDCCH的解调导频序列的初始 值的参数,第二参数为用于计算第二资源集合中 E-PDCCH的解调导频序列的初始值的 参数。 上述第一参数和第二参数中分别需要包含《sem和 。 其中, 第一参数中可以 包括设置为 0或 1的扰码 ID ( nSCJD ), 和设置为所述 UE所在小区的小区 ID的第一解 调导频序列的初始 ID C X ) 0 第二参数中可以包括网络侧配置的扰码 ID ( «scro ), 和 网络侧配置的第二解调导频序列的初始 ID( X );或者设置为 0或 1的扰码 ID( η50ΊΏ ), 和网络侧配置的第二解调导频序列的初始 ID( X );或者网络侧配置的扰码 ID( nSCJD ), 和设置为所述 UE所在小区的小区 ID的第二解调导频序列的初始 ID C X ) 0 进一步, 第二参数中网络侧配置的扰码 ID可以具体为网络侧为 PDSCH配置的扰码 ID, 或者网 络侧为 E-PDCCH配置的扰码 ID; 第二参数中网络侧配置的第二解调导频序列的初始 ID可以具体为网络侧为 PDSCH配置的解调导频序列的初始 ID,或者网络侧为 E-PDCCH 配置的解调导频序列的初始 ID。对于网络侧配置的第二参数, UE可以在接收 E-PDCCH 之前, 从网络侧获取该第二参数并保存。
本发明实施例通过对包含 E-PDCCH的资源集合进行划分,针对划分后的不同资源 集合, 按照预先配置的不同参数计算不同资源集合的解调导频序列的初始值, 从而可 以根据解调导频序列的初始值得到用于解调不同的 E-PDCCH的解调导频序列。
步骤 103 : 分别通过第一解调导频序列的初始值和第二解调导频序列的初始值获 得解调导频序列。
在生成解调导频序列的初始值后,根据该初始值获得解调导频序列的过程与现有 技术中根据解调导频序列的初始值获得解调导频序列的过程一致,即可以通过下式生 成解调导频序列: ,、 1 /一 …、 1 Λ
+ -j= {\ - 2一- c lm + ' 1、)、1 f0
m = \,l,...,12N 'DL— 1 normal cyclic prefix r(m) = -j= {\ - 2 - c lm)) RB J v
l l [0,1,...,16^^ - 1 extended cyclic prefix 上式中, N X'DL为最大系统带宽包含的 PRB 的个数, m 为生成的序列的元素, normal cycl ic prefix (正常循环前缀) 指在正常循环前缀配置时 m的取值范围 为 0到
Figure imgf000013_0001
-1, extended cycl ic prefix (扩展循环前缀) 指在扩展循环前 缀配置时的 m的取值范围为
Figure imgf000013_0002
-1 ; 其中, c的初始值即为前述步骤 101中 生成的解调导频序列的初始值 cmit
需要说明的是,本发明实施例在对资源集合的划分进行描述时,仅示出了将资源 集合划分为第一资源集合和第二资源集合着两个集合的方式, 实际应用中, 也可以根 据需要将资源集合划分为两个以上的资源集合, 只要所划分的资源集合中的 E-PDCCH 可以按照设置的参数计算解调导频序列的初始值,而无需该 E-PDCCH承载计算解调导 频序列的初始值的参数即可, 对此本发明实施例不进行限制。
由上述实施例可见,在获取解调 E-PDCCH的解调导频序列时, 由于计算解调导频 序列的初始值的参数按照资源集合分别进行了配置, 因此在接收到 E-PDCCH后,可以 按照该 E-PDCCH所属的资源集合, 按照设置的参数计算解调导频序列的初始值,进而 获得用于解调 E-PDCCH的解调导频序列, 以提高 E-PDCCH的解调性能。 本发明上述导频配置方法的实施例可以应用在使用 CoMP技术的通信系统中, 该 通信系统中的一种可能的场景如图 3所示。
图 3中, 一个 Macro site (宏基站) 下包含三个 RRH (Remote Radio Head, 远 端无线头)单元, Macro site和三个 RRH单元下的 UE可以使用时频资源上相同的 PRB 传输 E-PDCCH,例如图 3中,都采用 PRB2传输 E_PDCCH。按照现有技术, 由于 E-PDCCH 复用了 PDSCH的一部分资源,因此难以按照解调 PDSCH的方式解调 E-PDCCH;进一步, 如果计算解调 E-PDCCH的解调导频序列的初始值时, 扰码 ID和解调导频序列的初始 ID都采用预先配置的固定值, 则虽然克服了前述无法解调 E-PDCCH的缺陷, 但是由 于图 3中 Macro site和 RRH单元都采用相同的时频资源传输 E-PDCCH, 因此按照固 定值计算得到的解调导频序列的初始值均相同,相应获得的解调导频序列在时频资源 上的位置也相同 (如图 3中灰色方块所示), 因此 Macro site和 RRH单元在同一时频 资源 PRB2上传输的 E-PDCCH的解调导频序列会发生碰撞, 可能导致信道估计性能恶 化, 降低 E-PDCCH的解调性能。
因此本发明实施例中可以通过对时频资源的资源集合进行划分,不同的资源集合 采用不同的参数计算解调导频序列的初始值, 从而可以保证在同一时频资源上传输 E-PDCCH的解调导频序列之间不会发生碰撞, 进而提高 E-PDCCH的解调性能。 下面在前述导频配置方法的实施例的描述基础上,对本发明实施例中的几种资源 集合的划分方式, 及对应的解调导频序列的初始值的生成过程进行详细描述。
1、 在第一个资源集合的划分方式中, 资源集合按照物理资源进行划分。
其中,第一资源集合可以包括系统带宽上设置的物理资源单元集合,第二资源集 合可以包括系统带宽上除所述设置的物理资源单元集合外的物理资源单元集合。 例 如,第一资源集合中包含的物理资源块可以是系统带宽中, 处于中间位置处的至少一 个 PRB, 或者处于边缘位置处的至少一个 PRB。
本实施例中, 第一资源集合通常采用设置的固定参数计算解调导频序列的初始 值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列的 初始 ID。第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采 用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如设置 为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采用网 络侧配置的扰码 ID,和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。 进一步,可以将第二资源集合再划分为若干资源子集合, 每个资源子集合采用网络侧 配置的一组参数计算解调导频序列的初始值,即本发明实施例可以对资源集合进行灵 活划分, 对不同的资源集合采用不同的配置参数计算解调导频序列的初始值。
如图 4所示, 为本发明实施例中按照物理资源划分的一种资源集合的示意图: 其 中第一时频资源集合可以采用设置的第一参数(例如, nSCID为 0, X为小区 ID,)计 算解调导频序列的初始值,第二时频资源集合 A可以采用网络侧配置的第二参数计算 解调导频序列的初始值 (例如, nSCID为 0, 网络侧配置的 X为 X (0) ), 第二时频资 源 B可以采用网络侧配置的第三参数 (例如, nSCID为 1, 网络侧配置的 X为 X (l) ) 计算解调导频序列的初始值。
2、 在第二个资源集合的划分方式中, 资源集合也按照物理资源进行划分。
其中,第一资源集合可以包括按照传输模式为离散式进行传输的物理资源单元集 合,第二资源集合可以包括按照传输模式为集中式进行传输的物理资源单元集合。其 中, 离散式传输是指数据在至少一个离散的物理资源单元集合上传输,集中式传输是 指数据在连续的至少一个物理资源单元集合上传输。 本实施例中,第一资源集合通常可以采用设置的固定参数计算解调导频序列的初 始值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列 的初始 ID。 第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始 值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可 以采用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如 设置为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配 置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。
3、 在第三个资源集合的划分方式中, 资源集合仍然按照物理资源划分。
其中,第一资源集合可以包括按照波束赋形传输的物理资源单元集合,第二资源 集合可以包括按照分集式传输的物理资源单元集合。例如, 按照波束赋形传输指采用 特定前导码 (precoder) 进行传输; 按照分集式传输指可以采用空频码块 (Spatial Frequency Block Code, SFBC), 或者 SFBC+频率切换发送分集 (Frequency Switched Transmit Diversity, FSTD), 或者随机波束赋形 (random beamforming), 或者开环 波束赋形 (open loop beamforming) 进行传输。
本实施例中, 第一资源集合通常可以采用设置的固定参数计算导频序列的初始 值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列的 初始 ID。第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采 用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如设置 为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配置的 扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。
4、 在第四个资源集合的划分方式中, 资源集合按照逻辑资源进行划分。
其中,第一资源集合可以包括公共搜索区间对应的物理资源单元集合,第二资源 集合可以包括用户特定搜索区间对应的物理资源单元集合。
在 LTE 系统中, 定义了控制信道单元 (Control Channel Element, CCE) 作为
E-PDCCH资源的组成单元, 每个 CCE映射于 E-PDCCH时频区域内的一组特定的时频格 点 (Resource Element, RE) 上。 E-PDCCH区域包含的 CCE从逻辑上被划分为公共搜 索区间和用户搜索区间,其中公共搜索区间用于传输公共控制信息 (如, 系统广播消 息、 寻呼消息、 随机接入消息等) 的调度指示信令, 用户搜索区间用于传输用户上下 行数据传输的调度指示信令。
本实施例中, 第一资源集合通常采用设置的固定参数计算解调导频序列的初始 值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列的 初始 ID; 第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采 用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如设置 为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配置的 扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。
参见图 5, 为本发明实施例中按照逻辑资源划分的资源集合与时频资源的映射关 系示意图:其中公共搜索区间和用户特定搜索区间分别对应系统带宽上的一部分时频 资源, 如图 5中, 公共搜索区域对应的时频资源用时频资源集合 1表示, 用户特定搜 索区间对应的时频资源用时频资源集合 2表示。其中, 时频资源集合 1可以采用设置 的第一参数 (例如, nSCID为 0, X为小区 ID) 计算解调导频序列的初始值, 时频资 源集合 2可以采用网络侧配置的第二参数 (例如, nSCID为 0,网络侧配置的 X为 X (0), 或者 nSCID为 1, 网络侧配置的 X为 X (l) ) 计算解调导频序列的初始值。
5、 在第五个资源集合的划分方式中, 资源集合按照 DCI format进行划分。 其中, 第一资源集合可以包括第一 DCI format集合对应的物理资源单元集合, 第二资源集合可以包括第二 DCI format 集合对应的物理资源单元集合。 例如, 第一 DCI format集合可以包括 DCI format中的格式 1A、 IB禾 P 1C, 第二 DCI format集合 可以包括除上述格式 1A、 IB和 1C其它格式。
本实施例中, 第一资源集合通常采用设置的固定参数计算解调导频序列的初始 值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列的 初始 ID; 第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采 用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如设置 为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配置的 扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。 6、 在第六个资源集合的划分方式中, 资源集合按照控制信令的类型进行划分。 其中,第一资源集合可以包括用于传输公共控制信令的物理资源单元集合,第二 资源集合可以包括用于传输用户设备 UE特定控制信令集合的物理资源单元集合。 例 如, 公共控制信令可以指小区特定的控制信令, 包括调度系统消息的控制信令, 指示 功控参数等的控制信令等; UE 特定的控制信令可以指用户级别用来做上行数据调度 或下行数据调度的控制信令等。
本实施例中,第一资源集合通常可以采用设置的固定参数计算解调导频序列的初 始值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列 的初始 ID。 第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始 值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可 以采用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如 设置为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配 置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。
7、 在第七个资源集合的划分方式中, 资源集合按照不同 RNTI进行加掩码的 CRC 的控制信令进行划分。
其中, 第一资源集合可以包括按照 SI-RNTI , P-RNTI , 临时 RNTI , RA-RNTI ,
SPS-RNTI , TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元 集合, 第二资源集合可以包括按照 C-RNTI进行 CRC加掩码的控制信令对应的物理资 源单元集合。
本实施例中,第一资源集合通常可以采用设置的固定参数计算解调导频序列的初 始值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列 的初始 ID。 第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始 值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可 以采用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如 设置为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配 置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。
8、 在第八个资源集合的划分方式中, 资源集合按照导频端口进行划分。
其中,第一资源集合可以包括第一导频端口集合对应的物理资源单元集合,第二 资源集合可以包括第二导频端口集合对应的物理资源单元集合。其中,第一端口集合 可以为第一个码分复用 (Code Division Multiplexing, CDM) 组内的端口, 第二端 口集合为第二个 CDM 组内的端口。 例如, 第一个 CDM 组内所包含端口的端口号为 7, 8, 11, 13, 第二个 CDM组内所包含端口的端口号为 9, 10, 12, 14。
参见图 6, 为本发明实施例中按照端口划分的资源集合的示意图: 图 6中, 用字 母 "A"标注的 RE表示第一端口集合中的端口对应的物理资源快, 用字母 "B"标注 的 RE标识第二端口集合中的端口对应的物理资源块。
本实施例中, 第一资源集合通常采用设置的固定参数计算解调导频序列的初始 值, 即设置为 0或 1的扰码 ID, 和设置为 UE所在小区的小区 ID的解调导频序列的 初始 ID。第二资源集合通常可以采用网络侧配置的参数计算解调导频序列的初始值, 即网络侧配置的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 也可以采 用设置的固定参数与网络侧配置的参数相结合计算解调导频序列的初始值,例如设置 为 0或 1的扰码 ID, 和网络侧配置的解调导频序列的初始 ID; 或者, 网络侧配置的 扰码 ID, 和设置为所述 UE所在小区的小区 ID的解调导频序列的初始 ID。 参见图 7, 为本发明导频发送方法的实施例流程图, 该实施例从基站侧描述了导 频发送过程:
步骤 701 : 基站根据资源集合确定用于生成解调导频序列的初始值的参数, 资源 集合包含第一资源集合和第二资源集合, 参数包括第一参数和第二参数。
本实施例中, 资源集合包括用于传输 E-PDCCH的传输资源,解调导频序列为用于 解调 E-PDCCH的导频序列。
本发明实施例中在进行资源集合划分时, 可以采用如下几种方式:
第一种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括系统带宽上设置的物理资源单元集合,第二资源集合可以包括系统带宽上除所述 设置的物理资源单元集合外的物理资源单元集合,所述设置的物理资源单元集合可以 通过小区 ID, 和 /或时隙号获得。 其中, 所述第一资源集合包括的物理资源单元集合 可以为物理资源单元集合中除配置给 UE的物理资源单元集合, 第二资源集合包括的 物理资源单元集合可以为配置给所述 UE的物理资源单元集合; 或者, 第二资源集合 包括的物理资源单元集合为配置给 UE的物理资源单元集合中, 除第一资源集合中包 括的物理资源单元集合外的其它物理资源单元集合。
第二种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照传输模式为离散式进行传输的物理资源单元集合,第二资源集合可以包括按 照传输模式为集中式进行传输的物理资源单元集合。
第三种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照波束赋形传输的物理资源单元集合,第二资源集合可以包括按照分集式传输 的物理资源单元集合。
第四种方式: 资源集合为按照逻辑资源划分的资源集合,此时第一资源集合可以 包括公共搜索区间对应的物理资源单元集合,第二资源集合可以包括用户特定搜索区 间对应的物理资源单元集合。
第五种方式: 资源集合为按照 DCI format划分的资源集合, 此时第一资源集合 可以包括传输第一 DCI format集合对应的物理资源单元集合, 第二资源集合可以包 括传输第二 DCI format 集合对应的物理资源单元集合。
第六种方式: 资源集合为按照控制信令的类型划分的资源集合,此时第一资源集 合可以包括用于传输公共控制信令的物理资源单元集合,第二资源集合可以包括用于 传输 UE特定控制信令集合的物理资源单元集合。
第七种方式: 资源集合为按照不同 RNTI进行加掩码的 CRC的控制信令划分的资 源集合, 此时第一资源集合可以包括按照 SI-RNTI , P-RNTI , 临时 RNTI, RA-RNTI , SPS-RNTI , TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元 集合, 第二资源集合可以包括按照 C-RNTI进行 CRC加掩码的控制信令对应的物理资 源单元集合。
第八种方式: 资源集合为按照导频端口划分的资源集合,此时第一资源集合可以 包括第一导频端口集合对应的物理资源单元集合,第二资源集合可以包括第二导频端 口集合对应的物理资源单元集合。
上述几种实现方式中, 物理资源单元集合可以包括: 至少一个 eREG, 或者至少 一个 eCCE对应的资源单元集合, 或者至少一个 PRB, 或者至少一个 PRB pair。
步骤 702: 在第一资源集合上按照第一参数生成第一解调导频序列的初始值, 在 第二资源集合上按照第二参数生成第二解调导频序列的初始值。
本发明实施例中, 计算解调导频序列的初始值的公式与现有技术一致, 需要得到 三个参数, 分别为时隙号、 扰码 ID, 以及解调导频序列的初始 ID。
其中, 第一参数可以包括: 设置为 0或 1的扰码 ID, 和设置为所述 UE所在小区 的小区 ID的第一解调导频序列的初始 ID;第二参数可以包括:网络侧配置的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网 络侧配置的第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所 述 UE所在小区的小区 ID的第二解调导频序列的初始 ID。
可选的,网络侧配置的扰码 ID可以包括:所述网络侧为物理下行共享信道 PDSCH 配置的扰码 ID; 或者, 所述网络侧为增强的物理下行控制信道 E-PDCCH配置的扰码 ID; 网络侧配置的第二解调导频序列的初始 ID可以包括: 所述网络侧为 PDSCH配置 的解调导频序列的初始 ID; 或者, 所述网络侧为 E-PDCCH配置的解调导频序列的初 始 ID。
步骤 703: 分别通过第一解调导频序列的初始值和第二解调导频序列的初始值获 得解调导频序列。
步骤 704: 在解调导频序列对应的时频资源上发送该解调导频序列。
上述实施例中,基站获取解调导频序列的详细过程与前述图 1至图 6所示的实施 例一致, 在此不再赘述。
由上述实施例可见,在获取解调 E-PDCCH的解调导频序列时, 由于计算解调导频 序列的初始值的参数按照资源集合分别进行了配置, 因此在接收到 E-PDCCH后,可以 按照该 E-PDCCH所属的资源集合, 按照设置的参数计算解调导频序列的初始值,进而 获得用于解调 E-PDCCH的解调导频序列, 以提高 E-PDCCH的解调性能。 与本发明导频配置方法和导频发送方法的实施例相对应,本发明还提供了导频配 置装置和导频发送装置的实施例。
参见图 8, 为本发明导频配置装置的实施例框图, 该装置通常设置在 UE侧, 用 于获取对 UE接收到的 E-PDCCH进行解调的解调导频序列:
该导频配置装置包括: 确定单元 810、 生成单元 820和获得单元 830。
其中, 确定单元 810, 用于根据资源集合确定用于生成解调导频序列的初始值的 参数,所述资源集合包含第一资源集合和第二资源集合,所述参数包括第一参数和第 二参数;
生成单元 820, 用于在所述第一资源集合上按照所述第一参数生成第一解调导频 序列的初始值,在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初 始值;
获得单元 830, 用于分别通过所述第一解调导频序列的初始值和第二解调导频序 列的初始值获得解调导频序列。
其中, 资源集合的划分方式可以包括如下几种方式:
第一种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括系统带宽上设置的物理资源单元集合,第二资源集合可以包括系统带宽上除所述 设置的物理资源单元集合外的物理资源单元集合,所述设置的物理资源单元集合可以 通过小区 ID, 和 /或时隙号获得。 其中, 所述第一资源集合包括的物理资源单元集合 可以为物理资源单元集合中除配置给 UE的物理资源单元集合, 第二资源集合包括的 物理资源单元集合可以为配置给所述 UE的物理资源单元集合; 或者, 第二资源集合 包括的物理资源单元集合为配置给 UE的物理资源单元集合中, 除第一资源集合中包 括的物理资源单元集合外的其它物理资源单元集合。
第二种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照传输模式为离散式进行传输的物理资源单元集合,第二资源集合可以包括按 照传输模式为集中式进行传输的物理资源单元集合。
第三种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照波束赋形传输的物理资源单元集合,第二资源集合可以包括按照分集式传输 的物理资源单元集合。
第四种方式: 资源集合为按照逻辑资源划分的资源集合,此时第一资源集合可以 包括公共搜索区间对应的物理资源单元集合,第二资源集合可以包括用户特定搜索区 间对应的物理资源单元集合。
第五种方式: 资源集合为按照 DCI format划分的资源集合, 此时第一资源集合 可以包括传输第一 DCI format集合对应的物理资源单元集合, 第二资源集合可以包 括传输第二 DCI format 集合对应的物理资源单元集合。
第六种方式: 资源集合为按照控制信令的类型划分的资源集合,此时第一资源集 合可以包括用于传输公共控制信令的物理资源单元集合,第二资源集合可以包括用于 传输 UE特定控制信令集合的物理资源单元集合。
第七种方式: 资源集合为按照不同 RNTI进行加掩码的 CRC的控制信令划分的资 源集合, 此时第一资源集合可以包括按照 SI-RNTI , P-RNTI , 临时 RNTI, RA-RNTI , SPS-RNTI , TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元 集合, 第二资源集合可以包括按照 C-RNTI进行 CRC加掩码的控制信令对应的物理资 源单元集合。
第八种方式: 资源集合为按照导频端口划分的资源集合,此时第一资源集合可以 包括第一导频端口集合对应的物理资源单元集合,第二资源集合可以包括第二导频端 口集合对应的物理资源单元集合。
上述几种实现方式中, 物理资源单元集合可以包括: 至少一个 eREG, 或者至少 一个 eCCE对应的资源单元集合, 或者至少一个 PRB, 或者至少一个 PRB pair。
其中, 第一参数可以包括: 设置为 0的扰码 ID, 和设置为所述 UE所在小区的小 区 ID的解调导频序列的初始 ID; 第二参数可以包括: 网络侧配置的扰码 ID, 和网络 侧配置的解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的 解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的 小区 ID的解调导频序列的初始 ID。 具体的, 网络侧配置的扰码 ID可以包括: 所述 网络侧为 PDSCH配置的扰码 ID; 或者, 所述网络侧为 E-PDCCH配置的扰码 ID; 网络 侧配置的第二解调导频序列的初始 ID可以包括: 所述网络侧为 PDSCH配置的解调导 频序列的初始 ID; 或者, 所述网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
上述实施例示出的导频配置装置在进行导频配置时的过程与前述图 1至图 6所示 的导频配置方法实施例一致, 在此不再赘述。 参见图 9, 为本发明导频发送装置的实施例框图, 该装置通常设置在基站侧: 该导频发送装置包括: 确定单元 910、 生成单元 920、 获取单元 930和发送单元
940。
确定单元 910, 用于根据资源集合确定用于生成解调导频序列的初始值的参数, 所述资源集合包含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参 数;
生成单元 920, 用于在所述第一资源集合上按照所述第一参数生成第一解调导频 序列的初始值,在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初 始值;
获得单元 930, 用于分别通过所述第一解调导频序列的初始值和第二解调导频序 列的初始值获得解调导频序列;
发送单元 940, 用于在所述解调导频序列对应的时频资源上发送所述解调导频序 列。
其中, 资源集合的划分方式可以包括如下几种方式:
第一种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括系统带宽上设置的物理资源单元集合,第二资源集合可以包括系统带宽上除所述 设置的物理资源单元集合外的物理资源单元集合,所述设置的物理资源单元集合可以 通过小区 ID, 和 /或时隙号获得。 其中, 所述第一资源集合包括的物理资源单元集合 可以为物理资源单元集合中除配置给 UE的物理资源单元集合, 第二资源集合包括的 物理资源单元集合可以为配置给所述 UE的物理资源单元集合; 或者, 第二资源集合 包括的物理资源单元集合为配置给 UE的物理资源单元集合中, 除第一资源集合中包 括的物理资源单元集合外的其它物理资源单元集合。
第二种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照传输模式为离散式进行传输的物理资源单元集合,第二资源集合可以包括按 照传输模式为集中式进行传输的物理资源单元集合。
第三种方式: 资源集合为按照物理资源划分的资源集合,此时第一资源集合可以 包括按照波束赋形传输的物理资源单元集合,第二资源集合可以包括按照分集式传输 的物理资源单元集合。
第四种方式: 资源集合为按照逻辑资源划分的资源集合,此时第一资源集合可以 包括公共搜索区间对应的物理资源单元集合,第二资源集合可以包括用户特定搜索区 间对应的物理资源单元集合。
第五种方式: 资源集合为按照 DCI format划分的资源集合, 此时第一资源集合 可以包括传输第一 DCI format集合对应的物理资源单元集合, 第二资源集合可以包 括传输第二 DCI format 集合对应的物理资源单元集合。
第六种方式: 资源集合为按照控制信令的类型划分的资源集合,此时第一资源集 合可以包括用于传输公共控制信令的物理资源单元集合,第二资源集合可以包括用于 传输 UE特定控制信令集合的物理资源单元集合。
第七种方式: 资源集合为按照不同 RNTI进行加掩码的 CRC的控制信令划分的资 源集合, 此时第一资源集合可以包括按照 SI-RNTI , P-RNTI , 临时 RNTI, RA-RNTI , SPS-RNTI , TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元 集合, 第二资源集合可以包括按照 C-RNTI进行 CRC加掩码的控制信令对应的物理资 源单元集合。
第八种方式: 资源集合为按照导频端口划分的资源集合,此时第一资源集合可以 包括第一导频端口集合对应的物理资源单元集合,第二资源集合可以包括第二导频端 口集合对应的物理资源单元集合。
上述几种实现方式中, 物理资源单元集合可以包括: 至少一个 eREG, 或者至少 一个 eCCE对应的资源单元集合, 或者至少一个 PRB, 或者至少一个 PRB pair。
其中, 第一参数可以包括: 设置为 0的扰码 ID, 和设置为所述 UE所在小区的小 区 ID的解调导频序列的初始 ID; 第二参数可以包括: 网络侧配置的扰码 ID, 和网络 侧配置的解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的 解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的 小区 ID的解调导频序列的初始 ID。 具体的, 网络侧配置的扰码 ID可以包括: 所述 网络侧为 PDSCH配置的扰码 ID; 或者, 所述网络侧为 E-PDCCH配置的扰码 ID; 网络 侧配置的第二解调导频序列的初始 ID可以包括: 所述网络侧为 PDSCH配置的解调导 频序列的初始 ID; 或者, 所述网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
上述实施例示出的导频发送装置在进行导频发送时的过程与前述图 7 所示的导 频发送方法实施例一致, 在此不再赘述。 由上述实施例可见, UE 根据资源集合确定用于生成解调导频序列的初始值的参 数, 该资源集合包含第一资源集合和第二资源集合, 参数包括第一参数和第二参数, 在第一资源集合上按照第一参数生成第一解调导频序列的初始值,在第二资源集合上 按照第二参数生成第二解调导频序列的初始值,分别通过第一解调导频序列的初始值 和第二解调导频序列的初始值获得解调导频序列。 本发明实施例中, 在获取解调
E-PDCCH的解调导频序列时, 由于计算解调导频序列的初始值的参数按照预先划分的 资源集合分别进行了配置, 因此在接收到 E-PDCCH后,可以按照该 E-PDCCH所属的资 源集合, 按照设置的参数计算解调导频序列的初始值, 进而获得用于解调 E-PDCCH 的解调导频序列, 以提高 E-PDCCH的解调性能。
本领域的技术人员可以清楚地了解到本发明实施例中的技术可借助软件加必需 的通用硬件平台的方式来实现。基于这样的理解,本发明实施例中的技术方案本质上 或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产 品可以存储在存储介质中, 如 R0M/RAM、 磁碟、 光盘等, 包括若干指令用以使得一台 计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例 或者实施例的某些部分所述的方法。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部 分互相参见即可, 每个实施例重点说明的都是与其他实施例的不同之处。尤其, 对于 系统实施例而言, 由于其基本相似于方法实施例, 所以描述的比较简单, 相关之处参 见方法实施例的部分说明即可。
以上所述的本发明实施方式, 并不构成对本发明保护范围的限定。任何在本发明 的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的保护范围之 内。

Claims

权 利 要 求
1、 一种导频配置方法, 其特征在于, 所述方法包括:
用户设备 UE根据资源集合确定用于生成解调导频序列的初始值的参数, 所 述资源集合包含第一资源集合和第二资源集合,所述参数包括第一参数和第二参 数;
在所述第一资源集合上按照所述第一参数生成第一解调导频序列的初始值, 在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初始值; 分别通过所述第一解调导频序列的初始值和第二解调导频序列的初始值获 得解调导频序列。
2、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括系统带宽上设置的物理资源单元集合,所述第二资源 集合包括所述系统带宽上除所述设置的物理资源单元集合外的物理资源单元集
3、 根据权利要求 2所述的方法, 其特征在于,
所述第一资源集合包括的物理资源单元集合为物理资源单元集合中除配置 给 UE的物理资源单元集合, 所述第二资源集合包括的物理资源单元集合为配置 给所述 UE的物理资源单元集合; 或者,
所述第二资源集合包括的物理资源单元集合为配置给 UE的物理资源单元集 合中,除所述第一资源集合中包括的物理资源单元集合外的其它物理资源单元集
4、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括按照传输模式为离散式进行传输的物理资源单元集 合, 所述第二资源集合包括按照传输模式为集中式进行传输的物理资源单元集
5、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括按照波束赋形传输的物理资源单元集合,所述第二资 源集合包括按照分集式传输的物理资源单元集合。
6、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资 源集合包括用户特定搜索区间对应的物理资源单元集合。
7、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括传输第一下行控制信息格式 DCI format集合对应的 物理资源单元集合, 所述第二资源集合包括传输第二 DCI format 集合对应的物 理资源单元集合。
8、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括用于传输公共控制信令的物理资源单元集合,所述第 二资源集合包括用于传输用户设备 UE特定控制信令集合的物理资源单元集合。
9、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括按照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消 息 -无线网络临时标识 P-RNTI,临时 RNTI,随机接入 -无线网络临时标识 RA-RNTI , 半静态 -无线网络临时标识 SPS-RNTI , 发射功率控制 -无线网络临时标识 TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控 制信令对应的物理资源单元集合。
10、 根据权利要求 1所述的方法, 其特征在于,
所述第一资源集合包括第一导频端口集合对应的物理资源单元集合,所述第 二资源集合包括第二导频端口集合对应的物理资源单元集合。
11、 根据权利要求 2至 10任意一项所述的方法, 其特征在于, 所述物理资 源单元集合包括:
至少一个增强资源单元组 eREG, 或者至少一个增强控制信道单元 eCCE对应 的资源单元集合, 或者至少一个物理资源块 PRB, 或者至少一个物理资源单元对 PRB ρεάΓ。
12、 根据权利要求 1至 11任意一项所述的方法, 其特征在于,
所述第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所述 UE所在小区的 小区 ID的第一解调导频序列的初始 ID;
所述第二参数包括: 网络侧配置的扰码 ID, 和网络侧配置的第二解调导频 序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频 序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频序列的初始 ID。
13、 根据权利要求 12所述的方法, 其特征在于,
所述网络侧配置的扰码 ID包括:
所述网络侧为物理下行共享信道 PDSCH配置的扰码 ID; 或者,
所述网络侧为增强的物理下行控制信道 E-PDCCH配置的扰码 ID;
所述网络侧配置的第二解调导频序列的初始 ID包括:
所述网络侧为 PDSCH配置的解调导频序列的初始 ID; 或者,
所述网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
14、 根据权利要求 1至 13任意一项所述的方法, 其特征在于, 所述资源集 合包括用于传输 E-PDCCH 的传输资源, 所述解调导频序列为用于解调所述 E-PDCCH的导频序列。
15、 一种导频发送方法, 其特征在于, 所述方法包括:
基站根据资源集合确定用于生成解调导频序列的初始值的参数,所述资源集 合包含第一资源集合和第二资源集合, 所述参数包括第一参数和第二参数; 在所述第一资源集合上按照所述第一参数生成第一解调导频序列的初始值, 在所述第二资源集合上按照所述第二参数生成第二解调导频序列的初始值; 分别通过所述第一解调导频序列的初始值和第二解调导频序列的初始值获 得解调导频序列;
在所述解调导频序列对应的时频资源上发送所述解调导频序列。
16、 根据权利要求 15所述的方法, 其特征在于,
所述第一资源集合包括系统带宽上设置的物理资源单元集合,所述第二资源 集合包括所述系统带宽上除所述设置的物理资源单元集合外的物理资源单元集 合; 或者,
所述第一资源集合包括按照传输模式为离散式进行传输的物理资源单元集 合, 所述第二资源集合包括按照传输模式为集中式进行传输的物理资源单元集 合; 或者,
所述第一资源集合包括按照波束赋形传输的物理资源单元集合,所述第二资 源集合包括按照分集式传输的物理资源单元集合; 或者,
所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资 源集合包括用户特定搜索区间对应的物理资源单元集合; 或者,
所述第一资源集合包括传输第一下行控制信息格式 DCI format集合对应的 物理资源单元集合, 所述第二资源集合包括传输第二 DCI format 集合对应的物 理资源单元集合; 或者,
所述第一资源集合包括用于传输公共控制信令的物理资源单元集合,所述第 二资源集合包括用于传输用户设备 UE特定控制信令集合的物理资源单元集合; 或者,
所述第一资源集合包括按照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消 息 -无线网络临时标识 P-RNTI,临时 RNTI,随机接入 -无线网络临时标识 RA-RNTI , 半静态 -无线网络临时标识 SPS-RNTI , 发射功率控制 -无线网络临时标识 TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控 制信令对应的物理资源单元集合; 或者,
所述第一资源集合包括第一导频端口集合对应的物理资源单元集合,所述第 二资源集合包括第二导频端口集合对应的物理资源单元集合。
17、根据权利要求 15或 16所述的方法, 其特征在于, 所述物理资源单元集 合包括:
至少一个增强资源单元组 eREG, 或者至少一个增强控制信道单元 eCCE对应 的资源单元集合, 或者至少一个物理资源块 PRB, 或者至少一个物理资源单元对 PRB ρεάΓ。
18、 根据权利要求 15至 17任意一项所述的方法, 其特征在于,
所述第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所述 UE所在小区的 小区 ID的第一解调导频序列的初始 ID; 所述第二参数包括: 网络侧配置的扰码 ID, 和网络侧配置的第二解调导频 序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频 序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频序列的初始 ID。
19、 根据权利要求 18所述的方法, 其特征在于,
所述网络侧配置的扰码 ID包括:
所述网络侧为物理下行共享信道 PDSCH配置的扰码 ID; 或者,
所述网络侧为增强的物理下行控制信道 E-PDCCH配置的扰码 ID;
所述网络侧配置的第二解调导频序列的初始 ID包括:
所述网络侧为 PDSCH配置的解调导频序列的初始 ID; 或者,
所述网络侧为 E-PDCCH配置的解调导频序列的初始 ID。
20、 一种导频配置装置, 其特征在于, 所述装置包括:
确定单元, 用于根据资源集合确定用于生成解调导频序列的初始值的参数, 所述资源集合包含第一资源集合和第二资源集合,所述参数包括第一参数和第二 参数;
生成单元,用于在所述第一资源集合上按照所述第一参数生成第一解调导频 序列的初始值,在所述第二资源集合上按照所述第二参数生成第二解调导频序列 的初始值;
获得单元,用于分别通过所述第一解调导频序列的初始值和第二解调导频序 列的初始值获得解调导频序列。
21、 根据权利要求 20所述的装置, 其特征在于,
所述第一资源集合包括系统带宽上设置的物理资源单元集合,所述第二资源 集合包括所述系统带宽上除所述设置的物理资源单元集合外的物理资源单元集 合; 或者,
所述第一资源集合包括按照传输模式为离散式进行传输的物理资源单元集 合, 所述第二资源集合包括按照传输模式为集中式进行传输的物理资源单元集 合; 或者,
所述第一资源集合包括按照波束赋形传输的物理资源单元集合,所述第二资 源集合包括按照分集式传输的物理资源单元集合; 或者, 所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资 源集合包括用户特定搜索区间对应的物理资源单元集合; 或者,
所述第一资源集合包括传输第一下行控制信息格式 DCI format集合对应的 物理资源单元集合, 所述第二资源集合包括传输第二 DCI format 集合对应的物 理资源单元集合; 或者,
所述第一资源集合包括用于传输公共控制信令的物理资源单元集合,所述第 二资源集合包括用于传输用户设备 UE特定控制信令集合的物理资源单元集合; 或者,
所述第一资源集合包括按照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消 息 -无线网络临时标识 P-RNTI,临时 RNTI,随机接入 -无线网络临时标识 RA-RNTI, 半静态 -无线网络临时标识 SPS-RNTI , 发射功率控制 -无线网络临时标识 TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控 制信令对应的物理资源单元集合; 或者,
所述第一资源集合包括第一导频端口集合对应的物理资源单元集合,所述第 二资源集合包括第二导频端口集合对应的物理资源单元集合。
22、 根据权利要求 20或 21所述的装置, 其特征在于,
所述确定单元确定的第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所 述 UE所在小区的小区 ID的第一解调导频序列的初始 ID;
所述确定单元确定的第二参数包括:
网络侧配置的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频序 列的初始 ID。
23、 一种导频发送装置, 其特征在于, 所述装置包括:
确定单元, 用于根据资源集合确定用于生成解调导频序列的初始值的参数, 所述资源集合包含第一资源集合和第二资源集合,所述参数包括第一参数和第二 参数;
生成单元,用于在所述第一资源集合上按照所述第一参数生成第一解调导频 序列的初始值,在所述第二资源集合上按照所述第二参数生成第二解调导频序列 的初始值;
获得单元,用于分别通过所述第一解调导频序列的初始值和第二解调导频序 列的初始值获得解调导频序列;
发送单元,用于在所述解调导频序列对应的时频资源上发送所述解调导频序 列。
24、 根据权利要求 23所述的装置, 其特征在于,
所述第一资源集合包括系统带宽上设置的物理资源单元集合,所述第二资源 集合包括所述系统带宽上除所述设置的物理资源单元集合外的物理资源单元集 合; 或者,
所述第一资源集合包括按照传输模式为离散式进行传输的物理资源单元集 合, 所述第二资源集合包括按照传输模式为集中式进行传输的物理资源单元集 合; 或者,
所述第一资源集合包括按照波束赋形传输的物理资源单元集合,所述第二资 源集合包括按照分集式传输的物理资源单元集合; 或者,
所述第一资源集合包括公共搜索区间对应的物理资源单元集合,所述第二资 源集合包括用户特定搜索区间对应的物理资源单元集合; 或者,
所述第一资源集合包括传输第一下行控制信息格式 DCI format集合对应的 物理资源单元集合, 所述第二资源集合包括传输第二 DCI format 集合对应的物 理资源单元集合; 或者,
所述第一资源集合包括用于传输公共控制信令的物理资源单元集合,所述第 二资源集合包括用于传输用户设备 UE特定控制信令集合的物理资源单元集合; 或者,
所述第一资源集合包括按照系统信息 -无线网络临时标识 SI-RNTI , 寻呼消 息 -无线网络临时标识 P-RNTI,临时 RNTI,随机接入 -无线网络临时标识 RA-RNTI, 半静态 -无线网络临时标识 SPS-RNTI , 发射功率控制 -无线网络临时标识 TPC-RNTI 中的至少一种进行 CRC加掩码的控制信令对应的物理资源单元集合, 所述第二资源集合包括按照小区 -无线网络临时标识 C-RNTI进行 CRC加掩码的控 制信令对应的物理资源单元集合; 或者,
所述第一资源集合包括第一导频端口集合对应的物理资源单元集合,所述第 二资源集合包括第二导频端口集合对应的物理资源单元集合。
25、 根据权利要求 23或 24所述的装置, 其特征在于,
所述确定单元确定的第一参数包括: 设置为 0或 1的扰码 ID, 和设置为所 述 UE所在小区的小区 ID的第一解调导频序列的初始 ID;
所述确定单元确定的第二参数包括:
网络侧配置的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 设置为 0或 1的扰码 ID, 和网络侧配置的第二解调导频序列的初始 ID; 或者, 网络侧配置的扰码 ID, 和设置为所述 UE所在小区的小区 ID的第二解调导频序 列的初始 ID。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019114467A1 (zh) * 2017-12-15 2019-06-20 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3236593B1 (en) * 2016-04-21 2019-05-08 LG Electronics Inc. -1- Method and apparatus for transmitting uplink data in wireless communication system
US10778387B2 (en) * 2016-11-23 2020-09-15 Huawei Technologies Co., Ltd. System and method for group-assisted downlink transmission
US11115868B2 (en) * 2017-05-15 2021-09-07 Samsung Electronics Co., Ltd. Method and apparatus for control resource set configuration and monitoring of downlink control channel in wireless communication system
CN109391342B (zh) * 2017-08-04 2020-10-23 华为技术有限公司 一种数据传输方法、相关设备及系统
US11197324B2 (en) * 2018-02-23 2021-12-07 Qualcomm Incorporated NR RACH MSG3 and MSG4 resource configuration for CV2X
CN113839748B (zh) * 2019-03-14 2024-03-01 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN111757432B (zh) * 2019-03-29 2024-04-26 华为技术有限公司 一种唤醒方法以及相关装置
US11444733B2 (en) 2020-07-29 2022-09-13 Qualcomm Incorporated Pilot signaling supporting digital post-distortion (DPoD) techniques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101305529A (zh) * 2005-10-07 2008-11-12 诺基亚公司 为软频率重用提供公共导频信道的装置、方法和计算机程序产品
CN101938296A (zh) * 2009-06-29 2011-01-05 华为技术有限公司 一种导频序列生成方法、用户设备、基站
WO2011121925A1 (ja) * 2010-03-29 2011-10-06 パナソニック株式会社 端末装置、基地局装置、パイロット送信方法、及び、伝搬路推定方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8842628B2 (en) * 2011-09-12 2014-09-23 Blackberry Limited Enhanced PDCCH with transmit diversity in LTE systems
CN104067583B (zh) * 2011-12-09 2018-04-10 瑞典爱立信有限公司 在无线网络中初始化参考信号生成
CN107040490A (zh) * 2012-02-01 2017-08-11 华为技术有限公司 解调导频信号处理方法、基站及用户设备
WO2013119063A1 (en) * 2012-02-07 2013-08-15 Samsung Electronics Co., Ltd. Data transmission method and apparatus in network supporting coordinated transmission
US9167561B2 (en) * 2012-03-12 2015-10-20 Zte (Usa) Inc. Sequence initialization for demodulation reference signal
WO2013165216A1 (en) * 2012-05-03 2013-11-07 Samsung Electronics Co., Ltd. Reference signals and common search space for enhanced control channels
US20130301562A1 (en) * 2012-05-09 2013-11-14 Mediatek, Inc. Methods for Resource Multiplexing of Distributed and Localized transmission in Enhanced Physical Downlink Control Channel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101305529A (zh) * 2005-10-07 2008-11-12 诺基亚公司 为软频率重用提供公共导频信道的装置、方法和计算机程序产品
CN101938296A (zh) * 2009-06-29 2011-01-05 华为技术有限公司 一种导频序列生成方法、用户设备、基站
WO2011121925A1 (ja) * 2010-03-29 2011-10-06 パナソニック株式会社 端末装置、基地局装置、パイロット送信方法、及び、伝搬路推定方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2882155A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019114467A1 (zh) * 2017-12-15 2019-06-20 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质
CN110754131A (zh) * 2017-12-15 2020-02-04 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质
CN111108763A (zh) * 2017-12-15 2020-05-05 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质
CN111328145A (zh) * 2017-12-15 2020-06-23 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质
US11019608B2 (en) 2017-12-15 2021-05-25 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Channel resource set indication method and device, and computer storage medium
CN111328145B (zh) * 2017-12-15 2023-04-07 Oppo广东移动通信有限公司 一种信道资源集的指示方法及装置、计算机存储介质

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