WO2011116593A1 - 物理混合重传指示信道的映射方法 - Google Patents

物理混合重传指示信道的映射方法 Download PDF

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Publication number
WO2011116593A1
WO2011116593A1 PCT/CN2010/076949 CN2010076949W WO2011116593A1 WO 2011116593 A1 WO2011116593 A1 WO 2011116593A1 CN 2010076949 W CN2010076949 W CN 2010076949W WO 2011116593 A1 WO2011116593 A1 WO 2011116593A1
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component carrier
uplink
index
user equipment
phich
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PCT/CN2010/076949
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English (en)
French (fr)
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戴博
曾萍
吴欣
左志松
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements

Definitions

  • the present invention relates to the field of digital communications, and in particular to a specific implementation method for physical hybrid retransmission channel mapping in a carrier aggregation or multi-antenna uplink transmission scenario.
  • LTE Long Term Evolution
  • RB Resource Block
  • a resource block is 180 kHz in the frequency domain, and is a time slot of a general time slot in the time domain.
  • resource blocks are used as a basic unit for allocation.
  • the Physical Uplink Control Channel (PUCCH) is located on two sidebands of the entire frequency band, and is used to transmit a Physical Uplink Shared Channel (PUSCH), which is used to carry uplink data.
  • PUSCH Physical Uplink Shared Channel
  • Physical Broadcast Channel The information carried by the channel includes the frame number of the system, the downlink bandwidth of the system, the period of the physical hybrid retransmission channel, and is used for determining Physical Hybrid ARQ Indicator Channel (PHICH) The parameter N g G ⁇ 1/6 , 1/2 , 1, 2 ⁇ of the number of channel groups.
  • Physical Downlink Control Channel (PDCCH): used to carry uplink and downlink scheduling information, and uplink power control information.
  • DCI format (format) is divided into the following types: DCI format 0, 1, 1A, 1B, 1C, 1D, 2, 2A, 3, 3A, etc., where format 0 is used to indicate Scheduling of the Physical Uplink Shared Channel (PUSCH); DCI format 1 , 1A, IB, 1C, ID is used for different transmission modes of the Physical Downlink Shared Channel (PDSCH) of a single transport block. DCI format 2, 2A is used for different transmission modes of space division multiplexing; DCI format 3, 3A is used for transmission of power control commands of Physical Uplink Control Channel (PUCCH) and PUSCH.
  • Physical uplink shared channel Used to carry uplink transmission data. The channel-related resource allocation, modulation and coding scheme, demodulation reference signal (DMRS) cyclic shift (Cyclic Shift, CS) and other control information are used by the uplink grant (UL grant) with DCI format
  • PHICH Physical Hybrid ARQ Indicator Channel
  • the number and duration of the PHICH channel group are determined by the system message in the PBCH of the downlink carrier in which it is located.
  • the time-frequency position of the PHICH is determined by the number of PHICH channel groups, the duration, the antenna configuration of the cell PBCH, the cell ID, and the PHICH.
  • the group number and the sequence index within the group are determined.
  • the number of PHICH groups N p g ⁇ H is determined by the following formula (a):
  • the message determines that the PHICH group number is numbered from 0 to -1;
  • N ⁇ is the bandwidth of the downlink carrier where the PHICH is located.
  • N ⁇ is the bandwidth of the downlink carrier where the PHICH is located.
  • the number of PHICH groups is W P gp H per subframe, where the value of ⁇ is as shown in Table 1.
  • the PHICH resource is determined by, where, " is the PHICH group number, n s CH d is the index of the orthogonal sequence in the PHICH group, which is determined by the following formula (b):
  • n se a ( ⁇ ⁇ m0 d 2N
  • _ J « ⁇ is the dynamic cyclic shift parameter of the Demodulation Reference Signal (DMRS) defined in 0 ⁇ 1 format 0.
  • DMRS Demodulation Reference Signal
  • MU-MIMO Multi- User Multi-Input Multi-Output
  • Table 2 The configuration of this parameter is described in Table 2 below. Table 2
  • the cyclic shift of the DMRS sequence is determined by three parameters, as follows: It is determined by the high-level parameters (3 bits), semi-static configuration, so that different cells have different cyclic shifts, so that the inter-cell MU-MIMO users are orthogonal. Inter-cell interference is suppressed.
  • LTE Release-8 terminals can work in LTE-Advanced networks; LTE-Advanced terminals can work in LTE Release-8 networks. In addition, LTE-Advanced should be able to be in different sizes of frequencies.
  • LTE Release-8 for example, 100MHz continuous spectrum resources
  • a carrier aggregation method is used, that is, two or more component carriers (CCs) are aggregated to support a downlink transmission bandwidth greater than 20 MHz.
  • the LTE-A system supports cross-carrier scheduling.
  • the PRB index of each CC and the dynamic cyclic shift parameter of the DMRS may be the same, which may easily lead to resource conflicts, so a new solution is needed.
  • dynamic scheduling that is, when scheduling through DCI, the collision can be solved by adjusting the dynamic cyclic shift parameter of the DMRS.
  • SPS Semi-Persistent Scheduling
  • dynamic cyclic shift parameters are fixed. If the PRB index of each CC is the same, resource conflict is inevitable.
  • Method 1 Use the existing CS mechanism to avoid collision by adjusting the dynamic cyclic shift parameters of DMRS in DCI signaling.
  • Method 2 Set carrier specific offset (Carrier specific offset) to avoid collisions by using different default values for each CC scheduled by cross-carrier.
  • Method 3 Serial numbering of UL carriers is performed, that is, the PRBs of the uplink carriers are serially numbered to avoid collisions. Method 1 does not need to be standardized again. Method 3 is equivalent to the special case of Method 2.
  • the third method can solve the PHICH resource conflict problem to a large extent.
  • the optimization of this solution can be considered to perform PRB shift on the basis of method three.
  • a terminal in an LTE-A system can simultaneously transmit one or more component carriers according to its capabilities, and the uplink can use a single-user multi-antenna transmission technology, including Transmit Diversity (TxD) and spatial multiplexing (such as multiple inputs). Multiple Input Multiple Output (MIMO)).
  • TxD Transmit Diversity
  • MIMO Multiple Input Multiple Output
  • Each component carrier supports a maximum of 2 codeword streams for simultaneous transmission.
  • the mapping rules of Acknowledgement/Negative Acknowledgement (ACK/NACK) information of the 2 codeword streams need to be standardized.
  • the codeword to layer mapping rule of the uplink codeword stream is the same as the downlink layer mapping rule.
  • FIG. 2 is a schematic diagram of layer mapping of the LTE-A uplink codeword stream according to the related art.
  • the uplink scheduling DCI format 0 does not support uplink multi-antenna transmission.
  • the uplink scheduling DCI needs to be newly added, and is temporarily recorded as DCI format X, if DCI format X is used.
  • Each layer of the UE is configured with appropriate DMRS cyclic shift related parameters. According to each cyclic shift amount of 3 bits, the signaling overhead is relatively large. For example, 4 layers of transmission, each layer is configured with a 3-bit DM RS cyclic shift. For parameters, 12 bits of signaling are required. It is conceivable to compress these 12 bits into 2 bits or 3 bits, each specific signaling value corresponding to a set of dynamic cyclic shift amounts.
  • DMRS Orthogonal Cover Code may be introduced, that is, (1, 1) or (1, -1) is used to improve the inter-terminal between the two RS symbols of the time slot. Orthogonality. If the terminal uses the same dynamic cyclic shift amount in the MU-MIMO scenario, the PHICH mapping needs to be redefined.
  • Figure 3 shows the uplink 4 antenna 4 layer transmission in the MIMO scenario.
  • the PHICH resource conflict resolution solution needs to be optimized in the cross-carrier scheduling scenario.
  • the PHICH resource mapping mode needs to be standardized in the MIMO scenario.
  • the present invention provides a specific implementation based on these two points.
  • the technical problem to be solved by the present invention is to provide a method for mapping a physical hybrid retransmission indication channel, which alleviates the PHICH resource conflict problem during cross-carrier scheduling.
  • the present invention provides a method for mapping a physical hybrid retransmission indication channel, including: a physical resource block allocated in an uplink resource when performing physical hybrid retransmission indication channel (PHICH) mapping in uplink cross-carrier scheduling Add an offset to the lowest index.
  • the offset is the product of the component carrier index and the default value ⁇ :.
  • the default value ⁇ : is one of a plurality of predefined default values configured by the high layer signaling, or the default value ⁇ : the value is ⁇ " or " ⁇ / ⁇ , p indicates the current uplink scheduling
  • the number of uplink component carriers of the current user equipment that can be scheduled by the downlink component carrier of the scheduled downlink control information, L" indicates a rounding operation, and " indicates an upward rounding operation.
  • the method further includes: first The physical resource blocks of the scheduled uplink component carriers are shifted, and then the physical resource blocks of the uplink component carriers that can be scheduled on the current downlink component carrier of the user equipment are cascaded and consecutively numbered according to the re-arranged uplink component carrier.
  • An index of a physical resource block which determines a resource of a physical hybrid retransmission indication channel in a downlink component carrier, where The shifting is a right shift or a loop left shift or a loop right shift.
  • the above method further includes: first, the physical resources of each uplink component carrier that can be scheduled on the current downlink component carrier of the user equipment.
  • the source blocks are cascaded and numbered consecutively, and then the physical resource blocks of the uplink component carriers that can be scheduled by the user equipment are all shifted, and the physical components of the downlink component carriers are determined according to the index of the physical resource blocks in the rearranged uplink component carriers.
  • the hybrid retransmits the resources of the indicated channel.
  • the foregoing method includes: when PHSCH resource mapping is performed on a component carrier/, each component carrier whose component carrier index is not greater than/ is cascaded according to an index from low to high, and the physical resource block shift is performed on the whole of the +1 component carrier. Wherein the shift is a right shift or a loop left shift or a loop right shift.
  • the step of cascading the physical resource blocks of the uplink component carriers that can be scheduled on the current downlink component carrier of the user equipment, and performing the sequential numbering, is the physical of each uplink component carrier that can be scheduled by the user equipment according to one of the following manners.
  • the resource blocks are concatenated and consecutively numbered: the physical resource blocks of the uplink component carriers paired with the downlink component carriers on which the downlink control information of the current uplink scheduling is located are numbered according to the numbering mode of the long-term evolution system, and can be scheduled on the current downlink component carrier.
  • the physical resource blocks of the other uplink component carriers are cascaded, and the connection number is uniformly performed according to the frequency from high to low or low to high; or the physical resources of each uplink component carrier that can be scheduled on the current downlink component carrier of the user equipment Block cascading, consecutive numbering according to frequency from high to low or low to high.
  • the shift amount can be obtained in one of the following ways: 1) Predefined value: p indicates that the downlink component carrier on which the downlink control information of the current uplink scheduling is located can be scheduled in the uplink component carrier of the user equipment.
  • the maximum or minimum bandwidth, or the uplink component carrier bandwidth of the downlink component carrier paired with the downlink control information of the current uplink scheduling; the uplink component carrier of the current user equipment that can be scheduled by the downlink component carrier where the downlink control information of the current uplink scheduling is located The number of the uplink component carrier is, the shift amount is /2", or Lp/w"x, or “ ⁇ /”, ⁇ , or Lpxz7w", or "w7w,, or
  • the component carrier index is one of the following values: 1) the current uplink scheduling downlink control information format of the user equipment indicates the component carrier indication domain Value
  • the pre-defined component carrier index is one of the following modes: The index of the uplink component carrier paired with the component carrier where the downlink control information of the current uplink scheduling of the user equipment is located is 0, and the current downlink of the user equipment An index of other uplink component carriers that can be scheduled across carriers on a component carrier, and consecutively numbered according to frequency from high to low or low to high; or
  • the index of all uplink component carriers that can be scheduled by the user equipment on the current downlink component carrier is consecutively numbered according to the frequency from high to low or low to high.
  • the present invention further provides a method for mapping a physical hybrid retransmission indication channel: in an uplink multi-antenna scenario, assigning a dynamic cycle of a group or a demodulation reference signal to a user equipment in a downlink control information format. The amount of shift, the base station retransmits the indication channel through physical mixing
  • the demodulation reference signal dynamic cyclic shift parameter n DMRS in the physical hybrid retransmission indication channel resource mapping is determined according to the signaling in the downlink control information.
  • the overhead of the dynamic cyclic shift amount of the demodulation reference signal allocated to the user equipment is 2 bits, and when the time domain orthogonal code enable information or the index information is allocated 1 bit, if the scheduled component carrier transmits only 1 code
  • the word stream directly uses the 3-bit information as a dynamic cyclic shift parameter ⁇ , ⁇ of the demodulation reference signal in the physical hybrid retransmission indication channel map.
  • the dynamic cyclic shift of the demodulation reference signal allocated to the user equipment is 3 bits, and the dynamic cyclic shift of the demodulated signal in the PHICH resource mapping is simultaneously allocated when the time domain orthogonal code enable information or the index information occupies 1 bit.
  • the bit parameter n DMRS is selected as one of the following modes: the 4-bit information is directly used as a demodulation reference signal in the PHICH map to dynamically cyclically shift the reference in DMRS , or when the intra- area orthogonal code enable information is not enabled. Or when the time domain orthogonal code index information is (1, 1), the 3 bit information is directly used as a demodulation reference signal dynamic cyclic shift parameter in the PHICH map. n When the time domain orthogonal code enable information is enabled or the time domain orthogonal code index information is (1, -1), the cyclic demodulation reference signal in the PHICH map corresponding to the partial state in the 3-bit information is dynamically cyclically shifted.
  • the overhead of the dynamic cyclic shift amount of the demodulation reference signal allocated to the user equipment is 3 bits, if scheduled When only one codeword stream is transmitted by the component carrier, the 3-bit information is directly used as a dynamic cyclic shift parameter of the demodulation reference signal in the physical hybrid retransmission indication channel map.
  • the overhead of the dynamic cyclic shift amount of the demodulation reference signal allocated to the user equipment is 2 bits or 3 bits. If the scheduled component carrier transmits only 2 codeword streams, the physical mixing of the 2 codeword streams is retransmitted. indicating channel resource to bind only a feedback acknowledgment or negative acknowledgment information, directly these two bits or 3 bits of information as a physical hybrid ARQ indicator channel demodulation reference signal is mapped in a dynamic cyclic shift parameter 3 ⁇ 4 ⁇ .
  • the invention can alleviate the PHICH resource conflict problem in cross-carrier scheduling, and proposes to define the DMRS related parameters in the mapping formula of the physical hybrid retransmission channel in the MIMO scene.
  • FIG. 1 is a schematic diagram of a physical resource block of an LTE system with a bandwidth of 5 MHz;
  • FIG. 2 is a schematic diagram of layer mapping of an LTE-A uplink codeword stream;
  • FIG. 3 is a schematic diagram of an uplink 4 antenna layer 4 transmission and using an OCC code in a MIMO scenario.
  • 4 is a schematic diagram of a method 1 in an embodiment; and
  • FIG. 5 is a schematic diagram of a third embodiment.
  • the present invention provides several optimization schemes for solving the PHICH resource conflict problem and defines DMRS related parameters in the PHICH resource mapping formula in the UL MIMO scenario.
  • the PHICH resource conflict solution may use an offset on the PRB index.
  • the following two methods are used to increase the offset: The method is as follows: Method 1: As shown in FIG. 4, when performing physical hybrid retransmission indication channel (PHICH) mapping in uplink cross-carrier scheduling, uplink resource allocation An offset is added to the lowest index of the physical resource block.
  • PHICH physical hybrid retransmission indication channel
  • PHICH resource mapping formula which is the product of the component carrier index and the default value ⁇ :.
  • the specific PHICH resource mapping formula is as follows: ytgr up ⁇
  • the offset represents the component carrier index
  • represents a default value.
  • the component carrier index is one of the following values:
  • the pre-defined component carrier index is one of the following modes:
  • the index of the uplink component carrier paired with the component carrier where the downlink control information of the current uplink scheduling of the user equipment is located is 0, and the current downlink of the user equipment
  • the index of the other uplink component carriers that can be scheduled across the carrier on the component carrier, according to the frequency from high to low or from low to high, the serial number; or, the index of all current uplink component carriers that can be scheduled by the user equipment, according to The frequency is consecutively numbered from high to low or low to high.
  • the default value ⁇ is UE-specific, and the manner of obtaining the method can be obtained by the following two methods.
  • the specific implementation method may be: predefining four default values, and the high layer signaling indicates that four default values are selected by using 2-bit signaling.
  • the high layer signaling may be configured to allocate 2 bits to each of the UE's UL component carriers that can be cross-carrier scheduled, and the total overhead is 2x ( «-l) bits, where "the UL that can be scheduled by the UE for the cross-carrier The number of component carriers. Or the UE may share a default value of all UL component carriers that can be scheduled across carriers, and the high layer signaling overhead is 2 bits.
  • the default value k is LWw or "W ⁇ , where P represents the maximum or minimum bandwidth of the uplink component carrier on which the user equipment can be scheduled on the downlink component carrier where the downlink control information of the current uplink scheduling is located. Or the uplink component carrier bandwidth of the downlink component carrier paired with the downlink control information of the current uplink scheduling; and the number of uplink component carriers of the current user equipment that can be scheduled by the downlink component carrier where the downlink control information of the current uplink scheduling is scheduled.
  • Method 2 The physical resource block of the uplink component carrier that is currently scheduled by the user equipment is first shifted, and then the physical resource blocks of each uplink component carrier that can be scheduled on the current downlink component carrier of the user equipment are cascaded and consecutively numbered. Alternatively, the physical resource blocks of the uplink component carriers that can be scheduled on the current downlink component carrier of the user equipment are cascaded, numbered consecutively, and then the physical resource blocks of the uplink component carriers that can be scheduled by the user equipment are all shifted. Specifically, when the PHICH resource mapping is performed on the component carrier /, each component carrier whose component carrier index is not greater than / is cascaded according to the index from low to high, and the physical resource block is shifted by the whole of the + 1 component carrier.
  • the resources of the physical hybrid retransmission indication channel in the downlink component carrier are determined according to the index of the physical resource block in the rearranged uplink component carrier.
  • the shifting may be a right shift or a cyclic left shift or a loop right shift.
  • the source block is concatenated and consecutively numbered: the physical resource block of the uplink component carrier paired with the downlink component carrier where the downlink control information of the current uplink scheduling is located is numbered according to the numbering mode of the long-term evolution system, and can be scheduled on the current downlink component carrier.
  • the physical resource blocks of the other uplink component carriers are cascaded, and the connection number is uniformly performed according to the frequency from high to low or low to high; or the physical resources of each uplink component carrier that can be scheduled on the current downlink component carrier of the user equipment Block cascading, consecutive numbering according to frequency from high to low or low to high.
  • the amount of shift when shifting can be obtained in one of the following ways:
  • Predefined value: p indicates the maximum or minimum bandwidth of the uplink component carrier on which the user equipment can be scheduled on the downlink component carrier where the downlink control information of the current uplink scheduling is located, or the downlink component carrier where the downlink control information of the current uplink scheduling is located Paired uplink component carrier bandwidth; The number of uplink component carriers of the current user equipment that can be scheduled by the downlink component carrier where the downlink control information of the current uplink scheduling is located.
  • the index of the uplink component carrier is, the shift amount is /2", or Lp/w"x, or " ⁇ /", ⁇ , or Lpxz7w", or "w7w,, or
  • the shift amount here refers to the shift amount of the aforementioned right shift or loop left shift or loop right shift. Further, the method of confirming the component carrier index is the same as the method of confirming the method 1.
  • Specific mapping method of PHICH resources in UL MIMO scenario Determine the DMRS related parameters in the PHICH resource mapping formula according to the specific situation.
  • the UE is allocated a set or a DMRS dynamic cyclic shift amount in the downlink control information format X (DCI Format X), and the corresponding signaling overhead is 2 bits or 3 bits.
  • the DCI further includes a 1-bit OCC enable identifier (called OCC enable). Information), or OCC index information, that is, the orthogonal code index 1 bit. When this bit is 0, it means that the OCC is not enabled, or the orthogonal code index is 0, corresponding to (1, 1), when it is 1, it means OCC.
  • the UE receives the DCI Format X, obtains a dynamic cyclic shift amount of one or one DMRS, and the UE sends uplink data according to the DCI.
  • the base station side feeds back the ACK/NACK information of the uplink data and carries it on the PHICH.
  • the dynamic cyclic shift parameter selection rule of the DMRS in the PHICH mapping is as follows: (1) The DCI Format X allocates a set of DMRS dynamic loops to the UE. When the overhead of the shift amount is 2 bits and there is 1 bit of OCC enable information or index information, if the scheduled component carrier transmits only 1 codeword stream, the 3 bit information is directly used as the DMRS in the PHICH map. Dynamic cyclic shift parameter M?S .
  • the PHICH resource mapping mode may be one of the following modes: Use this 4-bit information as the dynamic cyclic shift parameter n DMRS of the DMRS in the PHICH map" or
  • the overhead of assigning a set of DMRS dynamic cyclic shift amounts to the UE in DCI Format X is 3 bits. If the scheduled component carrier transmits 1 codeword stream, the 3 bits information is directly used as the DMRS in the PHICH mapping. Dynamic cyclic shift parameters.
  • the overhead of assigning a set of DMRS dynamic cyclic shift amounts to the UE in DCI Format X is 2 bits or 3 bits, and if the scheduled component carriers transmit 2 codeword streams, the 2 codeword streams PHICH resource binding, feeds back only one ACK / NACK information, or directly these two bits as a 3-bit information in PHICH mapping DMRS dynamic DMRS cyclic shift parameter L
  • the technical solutions of the present invention are further elaborated below in conjunction with the accompanying drawings and specific embodiments.
  • the first and second solutions of the solution are the optimization method 1 for solving the PHICH resource conflict problem.
  • the third and fourth embodiments are the optimization method 2 for the PHICH resource conflict problem solving.
  • Embodiment 5 is a definition of DMRS related parameters in PHICH resource mapping in a UL MIMO scenario.
  • Embodiment 1 assumes that a certain UL component carrier of a certain UE is scheduled on a certain downlink component carrier CC1 in a certain downlink subframe, and the "UL component carriers" are respectively recorded as CC CC X according to the frequency from low to high.
  • CC n _ x where CC1 and "is a pair of paired component carriers. Then the index of the component carrier is 000 (binary), CC. The index of CC 2 CC n _ x is 001 (binary), 010 (binary) n - ⁇ (decimal).
  • An offset is added to the PRB index in the PHICH resource mapping formula, the offset being equal to the product of the component carrier index and a default value.
  • nPHICH ⁇ (I ⁇ PRB RA + n cc ⁇ ) ⁇ ⁇ PHICH I + n DMRS ) m °d SF offset " ee , " ee denotes the above component carrier index, ⁇ : denotes a default value.
  • the default value may be one of the four values of 10, 20, 30, 40, which may be indicated by a 2-bit UE-specific high-level signaling, such as 00 (binary) corresponding to a default value of 10, 01 (binary) correspondence.
  • the default value is 20, 10 (binary) corresponds to the default value of 30, and 11 (binary) corresponds to the default value of 40.
  • the default values of all scheduled UL component carriers are the same, the upper layer signaling overhead is 2 bits, or the default value of each scheduled UL component carrier is indicated by 2 bits of high layer signaling, and the signaling overhead is 2x ( « -l) bits.
  • Scheme embodiment 2 It is assumed that a certain UL component carrier of a certain UE is scheduled on a certain downlink component carrier CC1 in a certain downlink subframe, and these "UL component carriers" are respectively recorded as CC CC X according to the frequency from low to high.
  • CC n _ x where CC1 and "is a pair of paired component carriers. Then the index of the component carrier is 000 (binary), CC. The index of CC 2 CC n _ x is 001 (binary), 010 (binary) n - ⁇ (decimal).
  • An offset is added to the PRB index in the PHICH resource mapping formula, the offset being equal to the product of the component carrier index and a default value.
  • nPHICH ⁇ (I ⁇ PRB RA + n cc ⁇ ) ⁇ ⁇ PHICH I + n DMRS ) m °d SF offset " ee , " ee denotes the above component carrier index, ⁇ : denotes a default value. The default value is ⁇ / «" or " ⁇ «1.
  • p indicates the maximum or minimum bandwidth (in PRBs) of the uplink component carriers that can be scheduled by the current user equipment, or the downlink component carrier pair where the current downlink control information is located.
  • the third embodiment of the solution first shifts the physical resource block of the uplink component carrier that is currently scheduled by the user equipment, and then cascades the physical resource blocks of the uplink component carriers that can be scheduled on the current downlink component carrier of the user equipment to perform consecutive numbering. .
  • the resources of the physical hybrid retransmission indication channel in the downlink component carrier are determined according to the index of the physical resource block in the rearranged uplink component carrier.
  • the shifting may be a right shift or a loop left shift or a loop right shift.
  • the shift amount of the physical resource block of the currently scheduled uplink component carrier may be a predefined value, that is, no signaling indication is required; or the value of the high layer signaling configuration, if the high layer signaling configuration is used, the upper layer may be less
  • the signaling indicates that one of the plurality of cyclic shift amounts is predefined.
  • the physical resource blocks of the uplink component carriers that can be scheduled to be consecutively numbered are consecutively numbered according to: the physical resource block of the uplink component carrier paired with the downlink component carrier where the downlink control information of the current uplink scheduling is located is in accordance with the Long Term Evolution system.
  • the numbering mode is numbered, and physical resource blocks of other uplink component carriers that can be scheduled on the current downlink component carrier are cascaded, and the connection number is uniformly performed according to the frequency from high to low or low to high.
  • the acknowledgment mode of the index of the component carrier is: the index of the uplink component carrier paired with the component carrier where the downlink control information of the current uplink scheduling of the user equipment is located is 0, and the other downlink component carriers of the user equipment can be scheduled by the cross carrier.
  • the index of the uplink component carrier is serially numbered according to the frequency from high to low or low to high.
  • a "1" component carrier of a certain UE is scheduled on a downlink component carrier CC1, and this "1 ⁇ component carrier is recorded as CC according to the frequency from low to high.
  • Q CC n _, where CC1 and "is a pair of paired component carriers.
  • the index of the component carrier is 000 (binary), cc. , cc 2
  • the index of CC ⁇ is 001 (binary), 010 (binary) n- ⁇ (decimal).
  • CC Code Division Multiple Access CC
  • the bandwidth of CC X CC tract—i is respectively, N 0 N n _ x (the subscript is consistent with the index of the component carrier), and the component carrier 0, that is, the CC ⁇ PRB index is not renumbered, that is, according to the LTE numbering rule.
  • Numbering, component carrier CC., CC 2 CC ⁇ PRB shift, shift amount is
  • component carrier 1 that is, CC.
  • the PRB number range is N. ⁇ No+N! - ⁇
  • component carrier 2 that is, the number range of CC 2 is N. +N, ⁇ ⁇ .+ ⁇ + ⁇ 2 - 1 , . .., the component carrier, that is, the number range of cc ⁇ is ⁇ ⁇ ⁇ - ⁇ .
  • A is the uplink component carrier i
  • the number of corresponding physical resource blocks; or the cyclic shift amount is configured by higher layer signaling.
  • the PHICH resource mapping formula for the corresponding component carrier / can be corrected as:
  • the PHICH resource mapping disclosure of the corresponding component carrier / can be corrected to:
  • the ⁇ shift ⁇ value can be LP/2", or LW"" X or " ⁇ /"”
  • the corresponding /t is a negative value; when moving to the right, the corresponding *3 ⁇ 4/t is a positive value.
  • the meanings of the newly added parameters are as follows: "For the number of uplink component carriers that can be scheduled currently, p represents the largest or smallest bandwidth of the uplink component carriers that can be scheduled currently, or the downlink component carrier pair where the current downlink control information is located.
  • Fig. 5 is a schematic view of the embodiment when the cycle is shifted to the right.
  • the physical resource blocks of the uplink component carriers that can be scheduled on the current downlink component carrier of the user equipment are cascaded, consecutively numbered, and then the physical resource blocks of the uplink component carriers that can be scheduled by the user equipment are moved. Bit. Specifically, when the PHICH resource mapping is performed on the component carrier/, the component carriers whose component carrier index is not greater than / are cascaded according to the index from low to high, and the physical resource block shift is performed on the whole of the i + 1 component carriers. .
  • the resources of the physical hybrid retransmission indication channel in the downlink component carrier are determined according to the index of the physical resource block in the rearranged uplink component carrier.
  • the shifting may be a right shift or a cyclic left shift or a loop right shift.
  • the acknowledgment mode of the index of the component carrier is: the index of the uplink component carrier paired with the component carrier where the downlink control information of the current uplink scheduling of the user equipment is located is 0, and the other downlink component carriers of the user equipment can be scheduled by the cross carrier.
  • the index of the uplink component carrier is serially numbered according to the frequency from high to low or low to high. It is assumed that a UL component carrier of a certain UE can be scheduled on a downlink component carrier CC1.
  • the UL component carriers are denoted as cc n _, respectively, according to the frequency from low to high, where cci is a pair of paired component carriers. Then the index of the component carrier is 000 (binary), cc. , cc 2
  • the index of CC ⁇ is 001 (binary) and 010 (binary) n - ⁇ (decimal).
  • CC. , Q CC complicat—i bandwidth is respectively, N 0 (The subscript is consistent with the index of the component carrier.)
  • the component carrier 0, that is, the CC ⁇ PRB index is not renumbered, that is, it is numbered according to the LTE numbering rule, and the component carrier CC.
  • the PRB of CC 2 CC ⁇ is serially numbered according to the frequency from low to high.
  • the component carrier 0, that is, the number range of the PRB is 0 ⁇ N. -l , component carrier 1, ie CC.
  • the PRB number range is N. ⁇ .
  • component carrier 2 that is, the number range of CC 2 is N. +N, ⁇ ⁇ . + ⁇ + ⁇ 2 - 1 , ..., the component carrier is CC resort — , the number range is jN ] ⁇ ⁇ ⁇
  • the component carriers that are not greater than / are cascaded according to the index from low to high, and the whole is shifted, the shift amount is
  • the PHICH resource mapping formula representation of the corresponding component carrier / can be corrected to: gr. ⁇ ⁇ + IN gV ° UP
  • the PHICH resource mapping formula of the corresponding component carrier i can be corrected to:
  • Value can be LW 2 ”, or , or ⁇ ” , or ], or LA/2”, when t is left, /t takes a negative value, and when it is right, /t takes a positive value. Or the value of shift is configured by higher layer signaling.
  • the meanings of the new parameters are as follows: "For the number of uplink component carriers that can be scheduled currently, p represents the maximum or minimum bandwidth of the uplink component carriers that can be scheduled currently, or the current downlink.
  • the index of the uplink component carrier, ⁇ is the bandwidth of the uplink component carrier / (in units of PRBs). The meaning of other parameters is the same as the LTE standard (see background).
  • the UE is assigned a set of dynamic cyclic shift amount (SU-MIMO) or a dynamic cyclic shift amount (MU-MIMO) in DCI Format X, and the signaling overhead is 2 bits or 3 bits.
  • SU-MIMO dynamic cyclic shift amount
  • MU-MIMO dynamic cyclic shift amount
  • One bit of OCC enable bit information or OCC index information may be added.
  • the standard will only choose one of the following schemes: Solution 1: 2 bits correspond to a set of dynamic cyclic shift amount, 1 bit of OCC enable information; Scheme 2: 3 bits correspond to one Group dynamic cyclic shift amount or a dynamic cyclic shift amount, 1-bit OCC enable information; Scheme 3: 3 bits corresponding to a set of dynamic cyclic shift amount or a dynamic cyclic shift amount, no OCC enable information;
  • Solution 4 2 bits correspond to a set of dynamic cyclic shift amounts, and no OCC enable information.
  • scheme 1 it is only applicable to SU-MIMO.
  • the meaning of 2-bit signaling is as follows: When two dynamic cyclic shift amounts need to be allocated to the UE, one of the two-bit signaling states corresponds to the following four dynamic cyclic shift amounts. : (0, 6), (2, 8), (3, 9), (4, 10). When it is necessary to allocate 3 dynamic cyclic shift amounts to the UE, one of the 2-bit signaling states corresponds to the following three sets of dynamic cyclic shift amounts: (0, 4, 8), (2, 6, 10), ( 3, 6, 9).
  • one of the 2-bit signaling states corresponds to the following two sets of dynamic cyclic shift amounts: (0, 3, 6, 9), (2, 4, 8, 10).
  • the meaning of the 1-bit OCC enable information is as follows: When the layer index is even, the time-domain orthogonal code of the DMRS of the layer is (1, 1); When counting, the time domain orthogonal code of the DMRS of this layer is (1, -1). Or if the data sent by the scheduled UE uplink component carrier is 2 layers, it is recorded as Layer 0 and Layer 1 according to the layer index.
  • the time i or orthogonal code of the DMRS of Layer 0 is (1, 1), and the time domain orthogonal code of the DMRS of Layer 1 is (1, -1).
  • the time domain orthogonal code of the DMRS of Layer 0 is (1, -1), and the time domain orthogonal code of the DMRS of Layer 1 is (1, 1).
  • the data sent by the scheduled UE uplink component carrier is 3 layers
  • Layer 0, Layer 1 , : Layer 2 are recorded according to the layer index.
  • the time domain orthogonal code of the DMRS of Layer 1 is (1, 1)
  • the time domain orthogonal code of the DMRS of Layer 2 is (1, -1).
  • the time domain orthogonal code of the DMRS of Layer 1 is (1, -1), and the time domain orthogonal code of the DMRS of Layer 2 is (1, 1). If the data sent by the scheduled UE uplink component carrier is 4 layers, it is recorded according to the layer index.
  • the time i or orthogonal code of the DMRS of Layer 0 and Layer 2 is (1, 1), and the time domain orthogonal code of the DMRS of Layer 1 and Layer 3 is (1, -1).
  • the time domain orthogonal code of DMRS of Layer 0 and Layer 2 is (1, -1), and the time domain orthogonal code of DMRS of Layer 1 and Layer 3 is (1, 1).
  • the meaning of the 1-bit OCC non-enable information is: Each layer DMRS does not use the time domain orthogonal code, or the time domain orthogonal code is (1, 1).
  • 3-bit signaling For scheme 2, applicable to SU-MIMO and MU-MIMO, the meaning of 3-bit signaling is as follows: When one dynamic cyclic shift amount needs to be allocated to the UE, 8 dynamic cyclic shift amounts: 0, 6, 3, The 3-bit signaling corresponding to 4, 2, 8, 10, and 9 is: 000, 001, 010, 011, 100, 101, 110, 111. When it is necessary to allocate 2 dynamic cyclic shift amounts to the UE, one of the 3-bit signaling states corresponds to the following 8 sets of dynamic cyclic shift amounts: (0, 6), (6, 0), (3, 9) , (4, 10),
  • the corresponding 3-bit signaling of each group is: 000, 001, 010, 011, 100, 101, 110, 111, and the cyclic shift amount in each group is mapped from the lower layer to the upper layer.
  • one of the 3-bit signaling states corresponds to the following eight sets of dynamic cyclic shift amounts: (0, 4, 8), (6, 10, 2), ( 3, 6, 9),
  • the corresponding 3-bit signaling of each group is: 000, 001, 010, 011, 100, 101, 110, 111, and the cyclic shift amount in each group is mapped from the lower layer to the upper layer.
  • one of the 3-bit signaling states corresponds to the following eight sets of dynamic cyclic shift amounts: (0, 3, 6, 9), (6, 9, 0, 3), (3, 6, 9, 0), (4, 8, 10, 2), (2, 4, 8, 10), (8, 10, 2, 4), (10, 2, 4, 8), (9, 0, 3, 6).
  • the corresponding 3-bit signaling of each group is: 000, 001, 010, 011, 100, 101, 110, 111, and the cyclic shift amount in each group is mapped from the lower layer to the upper layer.
  • the meaning of the 1-bit OCC enable information is as follows: For MU-MIMO, the 1-bit OCC enables the time-domain orthogonal code of the DMRS indicating the scheduled component carrier of the UE to be (1, -1). The 1-bit OCC does not enable the time domain orthogonal code of the DMRS indicating the scheduled component carrier of the UE to be (1, 1). For SU-MIMO, the meaning of the OCC enable information is the same as that of the first one. For scheme three, it is applicable to SU-MIMO and MU-MIMO, and DMRS does not use the OCC scheme. The meaning of 3 bits is the same as scheme 2. For scheme four, it is only applicable to SU-MIMO, and DMRS does not use the OCC scheme.
  • the meaning of 2 bits is the same as the scheme 1).
  • the overhead of assigning a set of DMRS dynamic cyclic shift amounts to the UE in DCI Format X is 2 bits, and when there are 1 bit of OCC enable information, if only one codeword is sent by the scheduled component carrier.
  • the 3-bit information is directly used as the dynamic cyclic shift parameter of the DMRS in the PHICH mapping formula.
  • the overhead of assigning a DMRS dynamic cyclic shift amount to the UE in the DCI Format X is 3 bits.
  • the PHICH resource mapping mode may be one of the following modes: directly using the 4-bit information as the dynamic cyclic shift parameter i of the DMRS in the PHICH mapping formula or when the OCC is not enabled.
  • directly using the 3-bit information as the dynamic cyclic shift parameter of the DMRS in the PHICH mapping formula when the OCC is enabled, according to the partial state of the 3-bit information.
  • the dynamic cyclic shift parameter of the DMRS in the corresponding PHICH mapping formula is 2
  • the UE is assigned a DCI format X.
  • the DMRS dynamic cyclic shift amount is set, if the scheduled component carrier transmits one codeword stream, the 3-bit information is directly used as the dynamic cyclic shift parameter of the DMRS in the PHICH mapping formula.
  • scheme 1 For scheme 1, scheme 2, scheme 3, scheme 4, when DCI Format X allocates a set of DMRS dynamic cyclic shift amount to the UE, the overhead is 2 bits or 3 bits, and if the scheduled component carrier transmits 2 codeword streams The PHICH resources of the two codeword streams are bound, and only one ACK/NACK information is fed back, and the 2-bit or 3-bit information is directly used as the dynamic cyclic shift parameter of the DMRS in the PHICH mapping formula.
  • each DMRS dynamic cyclic shift in each group of DMRS dynamic cyclic shift amounts corresponds to a 3-bit DMRS dynamic cyclic shift parameter, wherein the correspondence between the DMRS dynamic cyclic shift amount and the DMRS dynamic cyclic shift parameter and the DMRS dynamic cyclic shift amount and the DMRS dynamic loop configured in the downlink control information format 0
  • the correspondence of the shift parameters is the same.
  • the DMRS dynamic cyclic shift parameter corresponding to the lowest or highest layer DMRS dynamic cyclic shift amount in the layer where the codeword stream is located on the uplink component carrier is used as a physical hybrid retransmission indication channel PHICH mapping formula of the codeword stream " ⁇ calculates the PHICH mapping of the codeword stream.
  • PHICH mapping formula of the codeword stream " ⁇ calculates the PHICH mapping of the codeword stream.
  • the present invention can alleviate the PHICH resource conflict problem in cross-carrier scheduling, and proposes to define DMRS related parameters in the mapping formula of the physical hybrid retransmission channel in the MIMO scene.

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Description

物理混合重传指示信道的映射方法
技术领域 本发明涉及数字通信领域, 特别是涉及载波聚合或多天线上行传输场景 下物理混合重传信道映射的具体实现方法。
背景技术
长期演进(Long Term Evolution, LTE ) 系统是第三代伙伴组织的重要 计划。 LTE系统釆用常规循环前缀(Normal Cyclic Prefix ) 时, 一个时隙包 含 7个长度的上 /下行符号, LTE 系统釆用扩展循环前缀(Extended Cyclic Prefix ) 时, 一个时隙包含 6个长度的上 /下行符号。 图 1是根据相关技术的带宽为 5MHz的 LTE系统物理资源块的示意图, 如图 1所示, 一个资源单元 ( Resource Element, 简称为 RE )为一个 OFDM 符号中的一个子载波, 而一个下行资源块(Resource Block, 简称为 RB ) 由 连续的 12个子载波和连续的 7个(扩展循环前缀的时候为 6个 ) OFDM符 号构成。一个资源块在频域上为 180kHz,时域上为一个一般时隙的时间长度, 进行资源分配时, 会以资源块为基本单位来进行分配。 在上行子帧中, 物理 上行控制信道(Physical Uplink Control Channel, PUCCH )位于整个频带两 个边带上, 中间用于传输物理上行共享信道 ( Physical Uplink Shared Channel, PUSCH ) , 该信道用于承载上行数据。 在 LTE系统定义了如下几种物理信道: 物理广播信道(Physical Broadcast Channel, PBCH ) : 该信道承载的信 息包括系统的帧号、 系统的下行带宽、 物理混合重传信道的周期、 以及用于 确定物理混合重传指示信道( Physical Hybrid ARQ Indicator Channel, PHICH ) 信道组数的参数 Ng G {1/6 , 1/2 ,1, 2}。 物理下行控制信道(Physical Downlink Control Channel, PDCCH ) : 用 于承载上、 下行调度信息, 以及上行功率控制信息。 下行控制信息 (Downlink Control Information, DCI )格式(format )分 为以下几种: DCI format 0、 1、 1A、 1B、 1C、 1D、 2、 2A、 3 , 3A等, 其 中, format 0用于指示物理上行共享信道 ( Physical Uplink Shared Channel, PUSCH ) 的调度; DCI format 1 , 1A, IB, 1C, ID用于单传输块的物理下 行共享信道(Physical Downlink Shared Channel, 简称为 PDSCH ) 的不同传 输模式; DCI format 2, 2A用于空分复用的不同传输模式; DCI format 3 , 3A 用于物理上行控制信道( Physical Uplink Control Channel, PUCCH )和 PUSCH 的功率控制指令的传输。 物理上行共享信道: 用于承载上行传输数据。 该信道相关的资源分配, 调制与编码方案, 解调参考信号 ( Demodulation Reference Signal, DMRS ) 的循环移位( Cyclic Shift, CS )等控制信息由上行授权( UL grant )用 DCI format
0设置。 物理混合重传指示信道 (Physical Hybrid ARQ Indicator Channel , PHICH ) : 用于承载上行传输数据的 ACK/NACK反馈信息。 PHICH信道组 的数目、持续时间( duration )由所在的下行载波的 PBCH中的系统消息确定, PHICH的时频位置由 PHICH信道组的数目、 持续时间、 小区 PBCH的天线 配置、 小区 ID以及 PHICH的组号和组内序列索引决定。 对于帧结构 1 (频分双工( Frequency Division Duplexing, FDD )帧结构), PHICH组的数目 Np g^H由以下公式( a ) 决定:
Ng (N°L/8)1 常规循环前缀情况
V PHICH 公式 ( a )
Ng (N°L/8) I 扩展循环前缀情况 其中, Ng e {1/6 , 1/2 , 1, 2} ,由所在的下行载波 ( Downlink Carrier , DL carrier ) 的 PBCH中的系统消息确定, PHICH的组号 从 0到 - 1编号;
N^是 PHICH所在的下行载波的带宽。 对于帧结构 2 (时分双工 ( Time Division Duplexing, TDD ) 帧结构) , PHICH组的数目为每子帧《 WP g p H , 其中^的取值如表 1所示。 表 1 子帧号
上下行子帧配置
0 1 2 3 4 5 6 7 8 9
0 2 1 - - - 2 1 - - -
1 0 1 - - 1 0 1 - - 1
2 0 0 - 1 0 0 0 - 1 0
3 1 0 - - - 0 0 0 1 1
4 0 0 - - 0 0 0 0 1 1
5 0 0 - 0 0 0 0 0 1 0
6 1 1 - - - 1 1 - - 1
PHICH资源由 、确定,其中, " 为 PHICH的组号, ns CHd 是 PHICH组中正交序列的索引, 由下面的公式(b )确定:
( J J
"DMRS ) muu v v PHICH
, " , ( b )
nsea = (\ \ m0d 2N
V|_J «^是0〇1 format 0中定义的解调参考信号 (Demodulation Reference Signal , DMRS ) 的动态循环移位参数,该参数的配置使小区内的多用户多输 入多输出 ( Multi-User Multi-Input Multi-Output, MU-MIMO )用户间具有不 同的循环移位, 使小区内 MU-MIMO用户正交, 抑制小区内干扰。 该参数的 配置如下表 2所述。 表 2
Figure imgf000005_0001
NP CH PHICH调制的扩频因子, 对常规 CP, N™CH=A , 扩展 CP, 4 " ^是上行资源分配的物理资源块( Physical Resource Block, PRB ) 的最低索引;
_ Jl TDD UL/DL配置 0下 PUSCH在子帧 4或 9传输
^ff/cff =|0 其它
LTE Release-8上行只允许单天线发送。 公式(b ) 中《DMW对于 UE来说 在 DCI format 0中只会配置 1个。
PUSCH DMRS的序列设计, DMRS序列的时频扩展:
m = 0,l
« = 0,..., -1 RS = PUSCH α =2πη /12
Figure imgf000006_0001
m = nsmod2.; = 0,1分别对应每个子帧的第一, 第二时隙。 共 12种循环 移位值, PUSCH DMRS带宽与 PUSCH带宽相同。
DMRS序列的循环移位 由三个参量决定, 具体说明如下: 由高层参数决定(3 比特), 半静态配置, 使不同的小区具有不同 的循环移位, 使小区间 MU-MIMO用户正交, 抑制小区间干扰。
: 由最近的 DCI format 0提供 (3 比特)(参考表 2) , 动态配置, 使 小区内的 MU-MIMO用户间具有不同的循环移位, 使小区内 MU-MIMO用 户正交, 抑制小区内干扰。 可称作动态循环移位参数。 nPRS(ns): 由小区身份识别号 ( IdentityJD ) N 1和 决定, 基于时隙跳 变的变量为: + yPUSCH
Figure imgf000007_0001
/TCH定义为: 匿1 ^ (f +AjmocBO , f = A^ m。d30 , 其中 △ ss e {0,l,..., 29}通过高层配置。 高级长期演进系统(Long-Term Evolution Advanced, 简称为 LTE- A )是 LTE Release-8的演进版本。 国际电信联盟无线电通信组提出的高级国际无线 通信系统需求中要求后向兼容。在 LTE- Advanced与 LTE Release-8后向兼容 的需求是指: LTE Release-8 的终端可以在 LTE- Advanced 的网络中工作; LTE- Advanced 的终端可以在 LTE Release-8 的网络中工作。 另夕卜 , LTE- Advanced应能在不同大小的频语配置, 包括比 LTE Release-8更宽的频 谱配置 (例如, 100MHz的连续的频谱资源) 下工作, 以达到更高的性能和 目标峰值速率。考虑到与 LTE Release-8的兼容性,对于大于 20MHz的带宽, 釆用频语聚集 (Carrier aggregation ) 的方式, 即, 两个或以上的分量载波 ( Component Carrier, CC )聚集以支持大于 20MHz的下行传输带宽。
LTE-A系统支持跨载波调度(cross-carrier scheduling ) , 此时在下行的 同一子帧中, 可能有一个下行分量载波调度 Ν个 UL分量载波的情形, 且 Ν 个调度的 DCI 中均包含 3 比特的分量载波指示域 ( Carrier Indicator Field, CIF )。如果完全沿用 R8的资源映射方式,因各 CC的 PRB索引及 DMRS 的动态循环移位参数 可能一样, 很容易导致资源冲突, 所以需要新的解 决方式。 动态调度时, 即通过 DCI调度时, 冲突可通过调整 DMRS的动态 循环移位参数 解决。 半静态 (Semi-Persistent Scheduling, SPS )调度, 动态循环移位参数 是固定的, 如果各 CC的 PRB索引也一样, 资源冲突 是必然的。 所以为了解决跨载波调度时, PHICH资源冲突的问题还是需要标 准化方案解决。 目前讨论的 PHICH资源冲突问题的解决方案如下: 方法一: 使用已有的 CS机制, 即通过调整 DCI信令里 DMRS的动态循 环移位参数来避免冲突。 方法二: 设置载波专有的缺省值(Carrier specific offset ) , 通过被跨载 波调度的各 CC用不同的缺省值来避免冲突。 方法三: 将上行载波进行连续编号 ( Serial numbering of UL carriers ) , 即将上行载波的 PRB进行接续编号来避免冲突。 方法一不需要再标准化, 方法三相当于方法二的特例, 当 DL CC预留的 PHICH资源较少时(如 Ng = i ) , 并不能明显的解决 PHICH资源冲突问题, 当 DL CC预留的 PHICH资源较多时 (如 Ng = 2 ) , 方法三能较大程度的解 决 PHICH资源冲突问题。该解决方案的优化可以考虑在方法三的基础上进行 PRB移位。
LTE-A系统中的终端按其能力能同时发送一个或多个分量载波, 且上行 可以釆用单用户多天线发送技术, 包括传输分集( Transmit Diversity, TxD ) 和空间复用 (如多输入多输出 (Multiple Input Multiple Output, MIMO ) ) 。 每个分量载波最多支持 2个码字流同时传输,该 2个码字流的正确应答 /错误 应答 ( Acknowledgement/Negative Acknowledgement, ACK/NACK )信息的映 射规则需要标准化。 上行码字流的层映射 ( Codeword to layer mapping )规则 同下行层映射规则,图 2是根据相关技术的 LTE-A上行码字流的层映射的示 意图。 在相关技术中, 上行调度 DCI format 0 并不支持上行多天线传输, 在 LTE-A上行多天线传输场景下, 上行调度 DCI需要新增格式, 暂记作 DCI format X, 如果使用 DCI format X给 UE各层( layer ) 配置合适的 DMRS循 环移位相关参数, 按每个循环移位量 3 比特, 则信令开销比较大, 例如, 4 层传输,每层配置一个 3比特 DM RS循环移位参数,则需要 12比特的信令。 可以考虑将这 12比特压缩成 2比特或者 3比特,每一具体信令值对应一组动 态循环移位量。如何利用压缩后的动态循环移位参数进行 PHICH映射需要标 准化, 而且,为了使 PHICH资源映射尽可能兼容 LTE,在某些情形下 LTE-A 解调参考信号动态循环移位参数与实际循环移位量的对应关系仍需要沿用 LTE方式(表 2 ) 。 在 MIMO场景下,可能会引入 DMRS时域叠加正交码( Orthogonal Cover Code, OCC ) , 即在时隙的 2个 RS符号上釆用 (1 , 1 )或者(1 , -1 )提高 终端间的正交性。如果 MU-MIMO场景下,终端釆用相同的动态循环移位量, 那么 PHICH映射需要重新定义。 图 3是 MIMO场景下, 上行 4天线 4层传 输且釆用 OCC码的示意图。 综上所述, 跨载波调度场景下 PHICH 资源冲突解决方案需要优化, MIMO场景下 PHICH资源映射方式需要标准化。 本发明基于此两点给出了 具体实现方案。
发明内容 本发明要解决的技术问题是提供一种物理混合重传指示信道的映射方 法, 緩解跨载波调度时 PHICH资源冲突问题。 为了解决上述问题, 本发明提供了一种物理混合重传指示信道的映射方 法, 包括: 在上行跨载波调度中进行物理混合重传指示信道(PHICH )映射 时, 在上行资源分配的物理资源块的最低索引上增加一偏移量。 所述偏移量是分量载波索引 与缺省值^:的乘积。 所述缺省值^:是由高层信令配置的多个预定义的缺省值之一, 或者, 所 述缺省值^:取值为 ^ 」或「^/^ , p表示当前上行调度的下行控制信息所在 的下行分量载波上用户设备能被调度的上行分量载波中最大或最小的带宽, 或当前上行调度的下行控制信息所在的下行分量载波配对的上行分量载波带 宽; 《表示当前上行调度的下行控制信息所在的下行分量载波能调度的当前 用户设备的上行分量载波的数量, L」表示向下取整操作, 「,表示向上取整 操作。 上述方法还包括: 先将用户设备当前被调度的上行分量载波的物理资源块进行移位, 然后 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源块级 联, 进行连续编号, 按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载波中物理混合重传指示信道的资源, 其中, 所述的移位是右 移或者循环左移或者循环右移。 上述方法还包括: 先将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资 源块级联, 进行连续编号, 然后将用户设备能被调度的上行分量载波的物理 资源块整体进行移位,按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载波中物理混合重传指示信道的资源。 上述方法包括: 当对分量载波 / 进行 PHICH资源映射时,把分量载波索引不大于 / 的各 分量载波按照索引从低到高进行级联, 对这 + 1个分量载波整体进行物理资 源块移位, 其中, 所述的移位是右移或者循环左移或者循环右移。 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源 块级联, 进行连续编号的步骤中, 是根据以下方式之一对用户设备当前能被 调度的各上行分量载波的物理资源块级联, 进行连续编号: 对与当前上行调 度的下行控制信息所在下行分量载波配对的上行分量载波的物理资源块按照 长期演进系统的编号方式进行编号, 对当前下行分量载波上能被调度的其他 各上行分量载波的物理资源块级联, 统一按照频率从高到低或者从低到高进 行接续编号; 或者, 将用户设备当前下行分量载波上能被调度的各上行分量 载波的物理资源块级联, 按照频率从高到低或者从低到高进行连续编号。 移位时的步骤中, 移位量可釆用以下方式之一获得: 1 )预定义值: p表示当前上行调度的下行控制信息所在的下行分量载波 上用户设备能被调度的上行分量载波中最大或最小的带宽, 或当前上行调度 的下行控制信息所在的下行分量载波配对的上行分量载波带宽; 《表示当前 上行调度的下行控制信息所在的下行分量载波能调度的当前用户设备的上行 分量载波的数量, 所述上行分量载波的索引为 , 则移位量为 /2」, 或者 Lp/w」x , 或者「ρ/",χ , 或者 Lpxz7w」, 或者「w7w,, 或者 |_ρ,. /2」, 其中 A为 上行分量载波对应的物理资源块数量; L」表示向下取整操作, 「,表示向 上取整操作; 2 )由高层信令配置移位量,具体是由高层信令配置的多个预定义的值之
分量载波索引 是以下取值中的一种: 1 )该用户设备的当前上行调度下行控制信息格式中分量载波指示域的 值;
2 ) 高层配置的用户设备专有的分量载波索引;
3 )预定义的分量载波索引, 此预定义方式是以下方式中的一种: 与用户设备的当前上行调度的下行控制信息所在分量载波配对的上行分 量载波的索引为 0, 用户设备的当前下行分量载波上能被跨载波调度的其他 各上行分量载波的索引, 按照频率从高到低或者从低到高进行接续编号; 或 者,
用户设备在当前下行分量载波上所有能被调度的各上行分量载波的索 引, 按照频率从高到低或者从低到高进行连续编号。
为了解决上述技术问题, 本发明还提供了一种物理混合重传指示信道的 映射方法: 在上行多天线场景下, 在下行控制信息格式中为用户设备分配一 组或一个解调参考信号动态循环移位量, 基站通过物理混合重传指示信道
( PHICH )信息发送上行数据确认或非确认信息时, 根据下行控制信息中的 信令决定物理混合重传指示信道资源映射中的解调参考信号动态循环移位参 数 nDMRS °
为用户设备分配的解调参考信号动态循环移位量的开销为 2比特, 并且 同时分配时域正交码使能信息或索引信息占用 1比特时, 如果被调度的分量 载波只发送 1个码字流, 则直接将这 3比特信息作为物理混合重传指示信道 映射中的解调参考信号动态循环移位参数^、^。 为用户设备分配的解调参考信号动态循环移位量的开销为 3比特, 并且 同时分配时域正交码使能信息或索引信息占用 1比特时, PHICH资源映射中 解调信号的动态循环移位参数 nDMRS选择为以下方式中的一种: 直接将这 4比特信息作为 PHICH映射中的解调参考信号动态循环移位参 i nDMRS , 或者, 当时域正交码使能信息不使能时或者时域正交码索引信息为(1 , 1 )时, 直接将这 3 比特信息作为 PHICH映射中的解调参考信号动态循环移位参数 n 当时域正交码使能信息使能时或者时域正交码索引信息为( 1 , -1 )时, 根据这 3比特信息中部分状态对应的 PHICH映射中的解调参考信号动态循环 移位参数 M?S=2, 其他状态对应的 PHICH映射中的解调参考信号动态循环 移位参数 =7 为用户设备分配的解调参考信号动态循环移位量的开销为 3比特, 如果 被调度的分量载波只发送 1个码字流时, 直接将这 3比特信息作为物理混合 重传指示信道映射中的解调参考信号动态循环移位参数 。 为用户设备分配的解调参考信号动态循环移位量的开销为 2比特或者 3 比特, 如果被调度的分量载波只发送 2个码字流时, 将此 2个码字流的物理 混合重传指示信道资源进行绑定, 只反馈一个确认或非确认信息, 直接将这 2比特或 3比特信息作为物理混合重传指示信道映射中的解调参考信号动态 循环移位参数 ¾^。
本发明可以緩解跨载波调度时 PHICH资源冲突问题, 并提出 MIMO场 景下对物理混合重传信道的映射公式中的 DMRS相关参数进行了定义。
附图概述 图 1是带宽为 5MHz的 LTE系统物理资源块示意图; 图 2是 LTE-A上行码字流的层映射示意图; 图 3是 MIMO场景下, 上行 4天线 4层传输且釆用 OCC码的示意图; 图 4是实施例中方法一的示意图; 图 5是具体实施例三的示意图。
本发明的较佳实施方式 上行跨载波调度下 PHICH 资源冲突问题解决方案目前各有利弊。 UL
MIMO场景下, 用户用于上行传输的分量载波对应的 PHICH资源映射方法 还未讨论。 本发明给出了几种解决 PHICH 资源冲突问题的优化方案以及对 UL MIMO场景下 PHICH资源映射公式中的 DMRS相关参数进行了定义。
PHICH资源冲突问题的优化方案: 当一个下行分量载波同时调度 UE的多个 UL分量载波时,即 UL跨载波 调度场景下, PHICH资源冲突解决方案可以釆用在 PRB索引上增加一个偏 移量, 而这种增加偏移量的方式有以下 2种方法, 描述如下: 方法一: 如图 4所示, 在上行跨载波调度中进行物理混合重传指示信道 ( PHICH ) 映射时, 在上行资源分配的物理资源块的最低索引上增加一偏移 量。
在 PHICH资源映射公式中的 PRB索引上增加一个偏移量, 所述偏移量 是分量载波索引 与缺省值^:的乘积。 具体的 PHICH资源映射公式如下: ytgr up ―
"PHICH―
Figure imgf000013_0001
TPHICH
°HICH― Lv PRB—RA "Γ ' 尸 J PHICH "DMRS) llluu SF 其中, L」表示向下取整操作, 「,表示向上取整操作。
偏移量 = , 表示分量载波索引, ^:表示一缺省值。 分量载波索引 是以下取值中的一种:
1 )该用户设备的当前上行调度下行控制信息格式中分量载波指示域的
2 ) 高层配置的用户设备专有的分量载波索引;
3 )预定义的分量载波索引, 此预定义方式是以下方式中的一种: 与用户设备的当前上行调度的下行控制信息所在分量载波配对的上行分 量载波的索引为 0, 用户设备的当前下行分量载波上能被跨载波调度的其他 各上行分量载波的索引, 按照频率从高到低或者从低到高进行接续编号; 或 者, 用户设备的所有当前能被调度的上行分量载波的索引, 按照频率从高到 低或者从低到高进行连续编号。 进一步的, 该缺省值^:是 UE专有的, 其获得方式可由以下 2种方式之
( 1 ) 由高层信令配置的多个预定义的缺省值之一, 具体实现方法可为: 预定义 4个缺省值, 高层信令通过 2比特信令指示选择 4个缺省值之一, 该 高层信令可以是给 UE的每个可被跨载波调度的 UL分量载波配置 2比特, 总的开销为 2x(«-l)比特, 其中《为 UE的可被跨载波调度的 UL分量载波的 数量。 或者是 UE所有可被跨载波调度的 UL分量载波共享一个缺省值, 高 层信令开销为 2比特。
( 2 )所述缺省值 k取值为 LWw」或「W^ , P表示当前上行调度的下行控 制信息所在的下行分量载波上用户设备能被调度的上行分量载波中最大或最 小的带宽, 或当前上行调度的下行控制信息所在的下行分量载波配对的上行 分量载波带宽; 《表示当前上行调度的下行控制信息所在的下行分量载波能 调度的当前用户设备的上行分量载波的数量。
方法二 先将用户设备当前被调度的上行分量载波的物理资源块进行移位, 然后 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源块级 联, 进行连续编号。 或者, 先将用户设备当前下行分量载波上能被调度的各上行分量载波的 物理资源块级联, 进行连续编号, 然后将用户设备能被调度的上行分量载波 的物理资源块整体进行移位。 具体地, 当对分量载波 / 进行 PHICH 资源映 射时, 把分量载波索引不大于 / 的各分量载波按照索引从低到高进行级联, 对这 + 1个分量载波整体进行物理资源块移位。 按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载 波中物理混合重传指示信道的资源。 其中, 所述的移位可以是右移或者循环 左移或者循环右移。
根据以下方式之一对用户设备当前能被调度的各上行分量载波的物理资 源块级联, 进行连续编号: 对与当前上行调度的下行控制信息所在下行分量载波配对的上行分量载 波的物理资源块按照长期演进系统的编号方式进行编号, 对当前下行分量载 波上能被调度的其他各上行分量载波的物理资源块级联, 统一按照频率从高 到低或者从低到高进行接续编号; 或者, 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资 源块级联, 按照频率从高到低或者从低到高进行连续编号。 移位时的移位量可釆用以下方式之一获得:
1 )预定义值: p表示当前上行调度的下行控制信息所在的下行分量载波 上用户设备能被调度的上行分量载波中最大或最小的带宽, 或当前上行调度 的下行控制信息所在的下行分量载波配对的上行分量载波带宽; 《表示当前 上行调度的下行控制信息所在的下行分量载波能调度的当前用户设备的上行 分量载波的数量。 所述上行分量载波的索引为 , 则移位量为 /2」, 或者 Lp/w」x , 或者「ρ/",χ , 或者 Lpxz7w」, 或者「w7w,, 或者 |_ρ,. /2」, 其中 A为 上行分量载波对应的物理资源块数量; L」表示向下取整操作, 「,表示向 上取整操作;
2 )由高层信令配置移位量,具体是由高层信令配置的多个预定义的值之
这里的移位量指前述的右移或者循环左移或者循环右移的移位量。 更进一步的, 分量载波索引 的确认方式同方法一的确认方式。
UL MIMO 场景下 PHICH 资源的具体映射方法: 根据具体情形确定 PHICH资源映射公式中 DMRS相关参数。 第一步, 在上行多天线场景下, 在下行控制信息格式 X ( DCI Format X ) 中给 UE分配一组或一个 DMRS动态循环移位量, 相应的信令开销为 2比特 或者 3比特。 进一步的, 该 DCI中还包括 1比特的 OCC使能标志符(称为 OCC使能 信息) , 或者称为 OCC索引信息即正交码索引 1 比特, 当这比特为 0时表 示 OCC不使能, 或者说正交码索引为 0 , 对应 (1 , 1 ) , 为 1时表示 OCC 使能, 或者说正交码索引为 1 , 对应 (1 , -1 ) 。 或者当这比特为 0 时表示 OCC使能, 或者说正交码索引为 0 , 对应 (1 , -1 ) , 为 1时表示 OCC不使 能, 或者说正交码索引为 1 , 对应 (1 , 1 ) 第二步,UE接收该 DCI Format X,获得一组或一个 DMRS动态循环移位 量, UE根据该 DCI发送上行数据。 第三步, 基站侧反馈上行数据的 ACK/NACK信息, 承载在 PHICH上, PHICH映射中的 DMRS的动态循环移位参数 选择规则如下: ( 1 )DCI Format X中给 UE分配一组 DMRS动态循环移位量的开销为 2 比特, 且有 OCC使能信息或索引信息 1 比特时, 如果被调度的分量载波只 发送 1个码字流时, 直接将这 3比特信息作为 PHICH映射中的 DMRS的动 态循环移位参数 M?S
( 2 )DCI Format X中给 UE分配一个 DMRS动态循环移位量的开销为 3 比特, 且有 OCC使能信息或索引信息 1比特时, PHICH资源映射方式可为 以下方式中的一种: 直接将这 4比特信息作为 PHICH映射中的 DMRS的动态循环移位参数 nDMRS " 或者
当 OCC不使能时或者说 OCC索引为 ( 1 , 1 )时, 直接将这 3比特信息 作为 PHICH映射中的 DMRS的动态循环移位参数¾^;当 OCC使能时或者 说 OCC索引为( 1 , -1 )时, 根据这 3比特信息中部分状态对应的 PHICH映 射中的 DMRS的动态循环移位参数 M?S=2, 其他状态对应的 PHICH映射中 的 DMRS的动态循环移位参数 =7
( 3 )DCI Format X中给 UE分配一组 DMRS动态循环移位量的开销为 3 比特, 如果被调度的分量载波发送 1个码字流时, 直接将这 3比特信息作为 PHICH映射中的 DMRS的动态循环移位参数 。
( 4 )DCI Format X中给 UE分配一组 DMRS动态循环移位量的开销为 2 比特或 3比特, 如果被调度的分量载波发送 2个码字流时, 这 2个码字流的 PHICH资源进行绑定, 只反馈 1个 ACK/NACK信息, 直接将这 2比特或 3 比特信息作为 PHICH映射中的 DMRS的动态循环移位参数 lDMRS
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 方案实施例一、二是关于 PHICH资源冲突问题解决的优化方法一,方案 实施例三、 四是关于 PHICH资源冲突问题解决的优化方法二。 方案实施例五是关于 UL MIMO场景下 PHICH资源映射中 DMRS相关 参数的定义。
方案实施例一 假定在某一下行子帧中的某一下行分量载波 CC1上调度某 UE的《个 UL 分量载波, 这 "个 UL分量载波按照频率从低到高分别记作 CC CCX
CCn_x ,其中 CC1与《 为一对配对分量载波。则分量载波《 的索引为 000 (二 进制), CC。 CC2 CCn_x的索引依次为 001 (二进制)、 010 (二进制 ) n - \ (十进制) 。 在 PHICH资源映射公式中的 PRB索引上增加一个偏移量, 该偏移量等于分量载波索引与一缺省值的乘积。 用公式表示如下:
gr _
"PHICH ~
Figure imgf000017_0001
jPHICH
nPHICH ~ (I ^PRB RA + ncc^) ^ ^ PHICH I + nDMRS ) m°d SF 偏移量 = "ee , "ee表示上述的分量载波索引, ^:表示一缺省值。 该缺省 值可能为 10 , 20 , 30 , 40这四个值之一, 可由 2比特的 UE专有的高层信令 指示, 如 00 (二进制)对应缺省值为 10 , 01 (二进制)对应缺省值为 20 , 10 (二进制 )对应缺省值为 30 , 11 (二进制 )对应缺省值为 40。 所有被调度 的 UL分量载波的缺省值相同, 高层信令开销为 2比特, 或者每个被调度的 UL分量载波的缺省值各用 2比特高层信令指示, 信令开销为 2x(«-l)比特。
方案实施例二 假定在某一下行子帧中的某一下行分量载波 CC1上调度某 UE的《个 UL 分量载波, 这 "个 UL分量载波按照频率从低到高分别记作 CC CCX
CCn_x ,其中 CC1与《 为一对配对分量载波。则分量载波《 的索引为 000 (二 进制), CC。 CC2 CCn_x的索引依次为 001 (二进制)、 010 (二进制 ) n - \ (十进制) 。 在 PHICH资源映射公式中的 PRB索引上增加一个偏移量, 该偏移量等于分量载波索引与一缺省值的乘积。 用公式表示如下:
gr _
"PHICH ~
Figure imgf000018_0001
jPHICH
nPHICH ~ (I ^PRB RA + ncc^) ^ ^ PHICH I + nDMRS ) m°d SF 偏移量 = "ee , "ee表示上述的分量载波索引, ^:表示一缺省值。 该缺省 值为 ^/«」或「^«1 , p表示当前用户设备能被调度的上行分量载波中最大或 最小的带宽 (单位为 PRBs ) , 或当前下行控制信息所在的下行分量载波配 对的上行分量载波带宽; 《表示当前下行分量载波可调度当前用户设备的上 行分量载波的数量。
方案实施例三 先将用户设备当前被调度的上行分量载波的物理资源块进行移位, 然后 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源块级 联, 进行连续编号。 按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载波中物理混合重传指示信道的资源。 其中, 所述的移位可以 是右移或者循环左移或者循环右移。 当前被调度的上行分量载波的物理资源块的移位量可为预定义的值, 即 不需要信令指示; 或者高层信令配置的值, 如果釆用高层信令配置, 则高层 可由较少的信令指示预定义多个循环移位量之一。 各当前能被调度的上行分量载波的物理资源块级联, 进行连续编号的方 法为: 对与当前上行调度的下行控制信息所在下行分量载波配对的上行分量 载波的物理资源块按照长期演进系统的编号方式进行编号, 对当前下行分量 载波上能被调度的其他各上行分量载波的物理资源块级联, 统一按照频率从 高到低或者从低到高进行接续编号。 假定分量载波的索引的确认方式为: 与用户设备的当前上行调度的下行 控制信息所在分量载波配对的上行分量载波的索引为 0, 用户设备的当前下 行分量载波上能被跨载波调度的其他各上行分量载波的索引, 按照频率从高 到低或者从低到高进行接续编号。 假定在一下行分量载波 CC1上调度某 UE的《个1^分量载波,这《个1^ 分量载波按照频率从低到高分别记作 CC。、 Q CCn_, , 其中 CC1与《 为 一对配对分量载波。 则分量载波《 的索引为 000 (二进制), cc。、 cc2
CC^的索引依次为 001 (二进制) 、 010 (二进制) n-\ (十进制) 。
CC。、 CCX CC„— i的带宽分别为 、 N0 Nn_x (下标与分量载波的索 引一致) , 分量载波 0, 即 CC^々PRB索引不进行重新编号, 即按照 LTE的 编号规则进行编号, 分量载波 CC。、 CC2 CC^的 PRB进行移位, 移位 量为 |_ V2」, 或者 |_ WX'', 或者 ρ/""|χ 或者 LPx〃"」, 或者「ρχ〃""|, 或者 lPi/2], 然后按照移位后的顺序进行 PRB接续编号, 分量载波 0, 即《 的 PRB的编号范围是 0~ N。 -l , 分量载波 1, 即 CC。的 PRB编号范围为 N。 ~ No+N! -Ι , 分量载波 2, 即 CC2的编号范围是 N。+N, ~ Λ^。+Λ^+Λ^2- 1 , ..·, 分 量载波 即 cc^的编号范围是§ 〜 ΐ^-ι。 其中 A为上行分量载波 i
=o =o
对应的物理资源块数量; 或者由高层信令配置循环移位量。 当该移位为右移时, 相应分量载波 / 的 PHICH 资源映射公式表示可修 正为:
"PHICH λ PRB RA T AlllJl T -i ί nDMRS ) llllJU 1、 PHICH T 1 PHICH1 PHICH
t=0
■PHICH
+ "扁) mod2 SF
Figure imgf000019_0001
当该移位为循环左移或循环右移时, 相应分量载波 / 的 PHICH 资源映 射公 示可修正为:
Figure imgf000019_0002
\shift\值可以为 LP/2」, 或者 LW"」 X 或者「ρ/""|χ , 或者 |_ρχ〃"」, 或者
Figure imgf000020_0001
, 或者 LA. / 2」, 或者由高层信令配置。 当为左移时, 相应的 /t为负 值; 当为右移时, 相应的 *¾/t为正值。 其中新增参数的含义说明如下: 《为当前能被调度的上行分量载波的数 量, p表示当前能被调度的上行分量载波中最大或最小的带宽, 或当前下行 控制信息所在的下行分量载波配对的上行分量载波带宽; / 为前述方式确定 的上行分量载波的索引, N,表示分量载波 t的带宽, 表示分量载波 / 的带 宽, t也为按前述方式确定的上行分量载波的索引, Α为上行分量载波 / 的带 宽 (单位为 PRBs ) 。 其他参数的意义同 LTE标准(见背景技术) 。 图 5为此实施例釆用循环右移时的示意图。
方案实施例四 先将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资 源块级联, 进行连续编号, 然后将用户设备能被调度的上行分量载波的物理 资源块整体进行移位。 具体地, 当对分量载波 / 进行 PHICH 资源映射时, 把分量载波索引不大于 / 的各分量载波按照索引从低到高进行级联, 对这 i + 1个分量载波整体进行物理资源块移位。 按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载 波中物理混合重传指示信道的资源。 其中, 所述的移位可以是右移或者循环 左移或者循环右移。 假定分量载波的索引的确认方式为: 与用户设备的当前上行调度的下行 控制信息所在分量载波配对的上行分量载波的索引为 0, 用户设备的当前下 行分量载波上能被跨载波调度的其他各上行分量载波的索引, 按照频率从高 到低或者从低到高进行接续编号。 假定在一下行分量载波 CC1上能调度某 UE的《个 UL分量载波, 这《个
UL分量载波按照频率从低到高分别记作 ccn_,,其中 cci与 为一对配对分量载波。则分量载波《 的索引为 000(二进制), cc。、 cc2
CC^的索引依次为 001 (二进制) 、 010 (二进制) n - \ (十进制) 。 CC。、 Q CC„— i的带宽分别为 、 N0
Figure imgf000021_0001
(下标与分量载波的索 引一致) , 分量载波 0, 即 CC^々PRB索引不进行重新编号, 即按照 LTE的 编号规则进行编号, 分量载波 CC。、 CC2 CC^的 PRB按照频率从低到 高进行接续编号。 分量载波 0, 即《 的 PRB的编号范围是 0~ N。-l , 分量 载波 1, 即 CC。的 PRB编号范围为 N。 ~^。+ -1 , 分量载波 2, 即 CC2的编号 范围是 N。+N, ~ Λ^。+Λ^+Λ^2- 1 , …, 分量载波 即 CC„— ,的编号范围是 jN] ~ ^Ν 对上行分量载波 / 进行 PHICH资源映射时, 把分量载波索 =ο =0
引不大于 / 的各分量载波按照索引从低到高进行级联, 对整体进行移位, 移 位量为 |_ρ/2」, 或者 |_ WX 或者「ρ/ "|χ 或者 LPx〃"」, 或者「ρχ〃""|, 或 者 ,. /2」, 其中 A为上行分量载波 / 对应的物理资源块数量; 或者由高层信 令配置移位量。 当该移位为左移或者右移时, 相应分量载波 / 的 PHICH 资源映射公式 表示可修正为: gr。 θΗ Λ + I NgV°UP
"PHICH U 1 PHICH T 1 PHICH1 PHICH
nseq = ■PHICH
"PHICH + "扁) m0d2 SF
Figure imgf000021_0002
当给移位为循环左移或者循环右移时, 相应分量载波 i 的 PHICH资源映射公式表示可修正为:
Figure imgf000021_0003
值可以为 LW2」, 或者 或者
Figure imgf000021_0004
, 或者 ^Χ〃 」 , 或者 ], 或者 LA/2」, 当为左移时, /t取负值, 当为右移时, /t取正值。 或者由高层信令配置 shift的值。 其中新增参数的含义说明如下: 《为当前能被调度的上行分量载波的数 量, p表示当前能被调度的上行分量载波中最大或最小的带宽, 或当前下行 控制信息所在的下行分量载波配对的上行分量载波带宽; , / 为前述的上行 分量载波的索引, N,表示分量载波 t的带宽, ^表示分量载波 / 的带宽, t也 为按前述方式确定的上行分量载波的索引, Α为上行分量载波 / 的带宽 (单 位为 PRBs) 。 其他参数的意义同 LTE标准(见背景技术) 。
方案实施例五
UL MIMO场景下, 在 DCI Format X中给 UE分配一组动态循环移位量 ( SU-MIMO ) , 或者一个动态循环移位量(MU-MIMO) , 信令开销为 2比 特或者 3比特, 也可能会增加 1比特的 OCC使能比特信息或者 OCC索引信 息。 关于 DCI里, 上行 DMRS相关的参数配置, 标准最终只会选择以下方 案之一: 方案一: 2比特对应一组动态循环移位量, 1比特的 OCC使能信息; 方案二: 3比特对应一组动态循环移位量或一个动态循环移位量, 1比特 的 OCC使能信息; 方案三: 3比特对应一组动态循环移位量或一个动态循环移位量,无 OCC 使能信息;
方案四: 2比特对应一组动态循环移位量, 无 OCC使能信息。 对于方案一, 只适用于 SU-MIMO, 2比特信令含义如下: 当需要给 UE分配 2个动态循环移位量时, 2比特信令状态之一与下列 4 组动态循环移位量之 对应: (0, 6)、 (2, 8)、 (3, 9)、 (4, 10)。 当需要给 UE分配 3个动态循环移位量时, 2比特信令状态之一与下列 3 组动态循环移位量之 对应: (0, 4, 8)、 (2, 6, 10)、 (3, 6, 9)。 当需要给 UE分配 4个动态循环移位量时, 2比特信令状态之一与下列 2 组动态循环移位量之 对应: (0, 3, 6, 9) 、 (2, 4, 8, 10) 。 1比特 OCC使能信息的含义如下: 层索引为偶数时, 该层的 DMRS的时域正交码为 (1, 1); 层索引为奇 数时, 该层的 DMRS的时域正交码为 (1, -1 ) 。 或者 如果被调度的 UE 上行分量载波发送的数据为 2 层, 按照层索引记作 Layer 0、 Layer 1。 则 Layer 0的 DMRS的时 i或正交码为 (1, 1 ) , Layer 1 的 DMRS的时域正交码为 (1, -1 ) 。 或者 Layer 0的 DMRS的时域正交码 为 (1, -1 ) , Layer 1的 DMRS的时域正交码为 (1, 1 ) 。 如果被调度的 UE 上行分量载波发送的数据为 3 层, 按照层索引记作 Layer 0, Layer 1 , : Layer 2。 则: Layer 1的 DMRS的时域正交码为 (1, 1 ) , Layer 2的 DMRS的时域正交码为 (1, -1 ) 。 或者 Layer 1的 DMRS的时域 正交码为 (1, -1 ) , Layer 2的 DMRS的时域正交码为 (1, 1 ) 。 如果被调度的 UE 上行分量载波发送的数据为 4 层, 按照层索引记作
Layer 0、 Layer 1、 Layer 2、 Layer 3。 则 Layer 0 和 Layer 2的 DMRS的时 i或 正交码为 ( 1 , 1 ) , Layer 1和 Layer 3的 DMRS的时域正交码为 ( 1 , -1 ) 。 或者 Layer 0 和 Layer 2的 DMRS的时域正交码为( 1 , -1 ) , Layer 1和 Layer 3的 DMRS的时域正交码为 (1, 1 ) 。 1比特 OCC不使能信息的含义为: 各层 DMRS不釆用时域正交码, 或 者说时域正交码为 (1, 1 ) 。 对于方案二, 适用于 SU-MIMO和 MU-MIMO, 3比特信令的含义如下: 当需要给 UE分配 1个动态循环移位量时, 8个动态循环移位量: 0、 6、 3、 4、 2、 8、 10、 9对应的 3比特信令依次为: 000、 001、 010、 011、 100、 101、 110、 111。 当需要给 UE分配 2个动态循环移位量时, 3比特信令状态之一与下列 8 组动态循环移位量之 对应: (0, 6)、 (6, 0)、 (3, 9)、 (4, 10)、
(2, 8) 、 (8, 2) 、 (9, 3) 、 (10, 4)。 各组对应的 3比特信令依次为: 000、 001、 010、 011、 100、 101、 110、 111, 每组内的循环移位量按照从低 层到高层映射。 当需要给 UE分配 3个动态循环移位量时, 3比特信令状态之一与下列 8 组动态循环移位量之 对应: (0, 4, 8)、 (6, 10, 2)、 (3, 6, 9)、
(4, 8, 0) 、 (2, 6, 10) 、 (8, 0, 4) 、 (10, 2, 6) 、 (9, 3, 6) 。 各组对应的 3比特信令依次为: 000、 001、 010、 011、 100、 101、 110、 111 , 每组内的循环移位量按照从低层到高层映射。 当需要给 UE分配 4个动态循环移位量时, 3比特信令状态之一与下列 8 组动态循环移位量之 对应: (0, 3 , 6, 9 ) 、 (6, 9, 0, 3 ) 、 ( 3 , 6, 9, 0 ) 、 (4, 8, 10, 2 ) 、 ( 2, 4, 8, 10 ) 、 (8, 10, 2, 4 ) 、 (10, 2, 4, 8 ) 、 (9, 0, 3 , 6 )。 各组对应的 3比特信令依次为: 000、 001、 010、 011、 100、 101、 110、 111 , 每组内的循环移位量按照从低层到高层映射。
1比特 OCC使能信息的含义如下: 对于 MU-MIMO, 1比特 OCC使能表示该被调度的该 UE的分量载波的 DMRS的时域正交码为 (1 , -1 ) 。 1比特 OCC不使能表示该被调度的该 UE 的分量载波的 DMRS的时域正交码为 (1 , 1 )。 对于 SU-MIMO, OCC使能 信息的含义同方案一。 对于方案三, 适用于 SU-MIMO和 MU-MIMO, 且 DMRS不釆用 OCC 方案。 3比特的含义同方案二。 对于方案四, 只适用于 SU-MIMO, 且 DMRS不釆用 OCC方案。 2比特 的含义同方案 1 ) 。 如果釆用方案一, 则 DCI Format X中给 UE分配一组 DMRS动态循环 移位量的开销为 2比特, 且有 OCC使能信息 1比特时, 如果被调度的分量 载波只发送 1个码字流时, 直接将这 3比特信息作为 PHICH映射公式中的 DMRS的动态循环移位参数 n 如果釆用方案二, 则当 DCI Format X中给 UE分配一个 DMRS动态循 环移位量的开销为 3比特, 且有 OCC使能信息 1比特时, PHICH资源映射 方式可为以下方式中的一种: 直接将这 4比特信息作为 PHICH映射公式中的 DMRS的动态循环移位 参数 i 或者 当 OCC不使能时,直接将这 3比特信息作为 PHICH映射公式中的 DMRS 的动态循环移位参数 当 OCC使能时, 根据这 3比特信息中部分状态 对应的 PHICH映射公式中的 DMRS的动态循环移位参数 =2, 其他状态 对应的 PHICH映射公式中的 DMRS的动态循环移位参数 n =7。 比如当这 3比特为 000、 001、 011时, n =2; 当这 3比特为 100、 101、 110时, n =Ί 如果釆用方案二或者方案三, 当 DCI Format X中给 UE分配一组 DMRS 动态循环移位量时, 如果被调度的分量载波发送 1个码字流时, 直接将这 3 比特信息作为 PHICH映射公式中的 DMRS的动态循环移位参数 。 对于方案一、 方案二、 方案三、 方案四, 当 DCI Format X中给 UE分配 一组 DMRS动态循环移位量的开销为 2比特或 3比特,如果被调度的分量载 波发送 2个码字流时, 这 2个码字流的 PHICH资源进行绑定, 只反馈 1个 ACK/NACK信息, 直接将这 2比特或 3比特信息作为 PHICH映射公式中的 DMRS的动态循环移位参数¾^。 或者, 对于方案一、 方案二、 方案三、 方案四, 当 DCI Format X中给 UE分配一组 DMRS动态循环移位量时,每组 DMRS动态循环移位量中的每 一个 DMRS动态循环移位量对应一个 3比特的 DMRS动态循环移位参数, 其中, DMRS动态循环移位量和 DMRS动态循环移位参数的对应关系与下行 控制信息格式 0中配置的 DMRS动态循环移位量和 DMRS动态循环移位参 数的对应关系相同。 将所述上行分量载波上的码字流所在层中的最低或最高 层的 DMRS动态循环移位量对应的 DMRS动态循环移位参数作为码字流的 物理混合重传指示信道 PHICH映射公式中的"^ ^计算所述码字流的 PHICH 映射。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 本发明不限制于任何特定形式的硬件和软件的 结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
工业实用性 本发明可以緩解跨载波调度时 PHICH资源冲突问题, 并提出 MIMO场 景下对物理混合重传信道的映射公式中的 DMRS相关参数进行了定义。

Claims

权 利 要 求 书
1、 一种物理混合重传指示信道的映射方法, 其包括: 在上行跨载波调度中进行物理混合重传指示信道(PHICH ) 映射时, 在 上行资源分配的物理资源块的最低索引上增加一偏移量。
2、 如权利要求 1所述的方法, 其中: 所述偏移量是分量载波索引 与缺省值^:的乘积。
3、 如权利要求 2所述的方法, 其中: 所述缺省值 k是由高层信令配置的多个预定义的缺省值之一, 或者, 所述缺省值 取值为^ 」或「^/^ , p表示当前上行调度的下行控制信 息所在的下行分量载波上用户设备能被调度的上行分量载波中最大或最小的 带宽, 或当前上行调度的下行控制信息所在的下行分量载波配对的上行分量 载波带宽; 《表示当前上行调度的下行控制信息所在的下行分量载波能调度 的当前用户设备的上行分量载波的数量, L」表示向下取整操作, 「,表示向 上取整操作。
4、 如权利要求 1所述的方法, 其还包括: 先将用户设备当前被调度的上行分量载波的物理资源块进行移位, 然后 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源块级 联, 进行连续编号, 按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载波中物理混合重传指示信道的资源, 其中, 所述的移位是右 移或者循环左移或者循环右移。
5、 如权利要求 1所述的方法, 其还包括: 先将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资 源块级联, 进行连续编号, 然后将用户设备能被调度的上行分量载波的物理 资源块整体进行移位,按照重新编排的上行分量载波内的物理资源块的索引, 确定下行分量载波中物理混合重传指示信道的资源。
6、 如权利要求 5所述的方法, 其还包括: 当对分量载波 / 进行 PHICH资源映射时, 把分量载波索引不大于 / 的 各分量载波按照索引从低到高进行级联, 对这 + 1个分量载波整体进行物理 资源块移位, 其中, 所述的移位是右移或者循环左移或者循环右移。
7、 如权利要求 4或 5所述的方法, 其中: 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源 块级联, 进行连续编号的步骤中, 是根据以下方式之一对用户设备当前能被 调度的各上行分量载波的物理资源块级联, 进行连续编号: 对与当前上行调度的下行控制信息所在下行分量载波配对的上行分量载 波的物理资源块按照长期演进系统的编号方式进行编号, 对当前下行分量载 波上能被调度的其他各上行分量载波的物理资源块级联, 统一按照频率从高 到低或者从低到高进行接续编号; 或者, 将用户设备当前下行分量载波上能被调度的各上行分量载波的物理资源 块级联, 按照频率从高到低或者从低到高进行连续编号。
8、 如权利要求 4或 5或 6所述的方法, 其中: 移位的步骤中, 移位量釆用以下方式之一获得:
1 )预定义值: p表示当前上行调度的下行控制信息所在的下行分量载波 上用户设备能被调度的上行分量载波中最大或最小的带宽, 或当前上行调度 的下行控制信息所在的下行分量载波配对的上行分量载波带宽; 《表示当前 上行调度的下行控制信息所在的下行分量载波能调度的当前用户设备的上行 分量载波的数量, 所述上行分量载波的索引为 , 则移位量为 /2」, 或者 Lp/w」x , 或者「ρ/",χ , 或者 Lpxz7w」, 或者「w7w,, 或者 |_ρ,. /2」, 其中 A为 上行分量载波对应的物理资源块数量; L」表示向下取整操作, 「,表示向 上取整操作; 2 )由高层信令配置移位量,具体是由高层信令配置的多个预定义的值之
9、 如权利要求 2或 6所述的方法, 其中: 分量载波索引 是以下取值中的一种: 1 )该用户设备的当前上行调度下行控制信息格式中分量载波指示域的 值;
2 ) 高层配置的用户设备专有的分量载波索引;
3 )预定义的分量载波索引, 此预定义方式是以下方式中的一种: 与用户设备的当前上行调度的下行控制信息所在分量载波配对的上行分 量载波的索引为 0, 用户设备的当前下行分量载波上能被跨载波调度的其他 各上行分量载波的索引, 按照频率从高到低或者从低到高进行接续编号; 或 者, 用户设备在当前下行分量载波上所有能被调度的各上行分量载波的索 引, 按照频率从高到低或者从低到高进行连续编号。
10、 一种物理混合重传指示信道的映射方法, 其包括: 在上行多天线场景下, 在下行控制信息格式中为用户设备分配一组或一 个解调参考信号动态循环移位量,基站通过物理混合重传指示信道 ( PHICH ) 信息发送上行数据确认或非确认信息时, 根据下行控制信息中的信令决定物 理混合重传指示信道资源映射中的解调参考信号动态循环移位参数 。
11、 如权利要求 10所述的方法, 其中: 为用户设备分配的解调参考信号动态循环移位量的开销为 2比特, 并且 同时分配时域正交码使能信息或索引信息占用 1比特时, 如果被调度的分量 载波只发送 1个码字流, 则直接将这 3比特信息作为物理混合重传指示信道 映射中的解调参考信号动态循环移位参数^、^。
12、 如权利要求 10所述的方法, 其中: 为用户设备分配的解调参考信号动态循环移位量的开销为 3比特, 并且 同时分配时域正交码使能信息或索引信息占用 1比特时, PHICH资源映射中 解调信号的动态循环移位参数 nDMRS选择为以下方式中的一种: 直接将这 4比特信息作为 PHICH映射中的解调参考信号动态循环移位参 数 或者,
当时域正交码使能信息不使能时或者时域正交码索引信息为(1 , 1 )时, 直接将这 3 比特信息作为 PHICH映射中的解调参考信号动态循环移位参数 n 当时域正交码使能信息使能时或者时域正交码索引信息为( 1 , -1 )时, 根据这 3比特信息中部分状态对应的 PHICH映射中的解调参考信号动态循环 移位参数 M?S=2, 其他状态对应的 PHICH映射中的解调参考信号动态循环 移位参数 =7
13、 如权利要求 10所述的方法, 其中: 为用户设备分配的解调参考信号动态循环移位量的开销为 3比特, 如果 被调度的分量载波只发送 1个码字流时, 直接将这 3比特信息作为物理混合 重传指示信道映射中的解调参考信号动态循环移位参数 。
14、 如权利要求 10所述的方法, 其中: 为用户设备分配的解调参考信号动态循环移位量的开销为 2比特或者 3 比特, 如果被调度的分量载波只发送 2个码字流时, 将此 2个码字流的物理 混合重传指示信道资源进行绑定, 只反馈一个确认或非确认信息, 直接将这 2比特或 3比特信息作为物理混合重传指示信道映射中的解调参考信号动态 循环移位参数 ¾^。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093573A1 (ko) * 2014-12-08 2016-06-16 엘지전자 주식회사 5개를 초과하는 셀들을 반송파 집성에 따라 사용할 때의 pucch 전송 방법 및 사용자 장치

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101827393B (zh) * 2010-03-26 2015-10-21 中兴通讯股份有限公司 物理混合重传指示信道的映射方法
CN102457854B (zh) * 2010-10-14 2015-06-03 华为技术有限公司 一种解决信道冲突的方法、装置及系统
WO2012145907A1 (en) * 2011-04-28 2012-11-01 Renesas Mobile Corporation Phich reserved resources with cc-specific tdd ul/dl configurations
JP5801694B2 (ja) * 2011-11-09 2015-10-28 株式会社Nttドコモ 無線通信システム、無線基地局装置、ユーザ端末及び無線通信方法
CN103167563B (zh) * 2011-12-13 2018-03-23 中兴通讯股份有限公司 一种物理混合重传指示信道的资源分配方法和装置
CN103391621B (zh) * 2012-05-11 2019-01-01 中兴通讯股份有限公司 上行解调参考信号处理方法及装置
CN104284423B (zh) * 2013-07-05 2019-06-07 株式会社Ntt都科摩 移动通信方法、无线基站和移动台
CN106797246A (zh) * 2014-11-07 2017-05-31 富士通株式会社 Dm‑rs信息的指示方法、装置以及通信系统
CN106059733A (zh) * 2016-05-27 2016-10-26 深圳市金立通信设备有限公司 一种解调参考信号增强的方法及相关设备
CN108260221B (zh) * 2016-12-28 2021-07-30 中国移动通信有限公司研究院 一种无线通信系统的传输方法、基站及终端
CN109150426B (zh) * 2017-06-15 2021-04-06 维沃移动通信有限公司 DCI format信息的传输方法、相关设备和系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227261A (zh) * 2008-02-04 2008-07-23 中兴通讯股份有限公司 一种物理混合重传指示信道资源的分配方法
CN101465720A (zh) * 2009-01-23 2009-06-24 中兴通讯股份有限公司 一种发送上行harq反馈信息的方法和装置
CN101615993A (zh) * 2008-06-23 2009-12-30 华为技术有限公司 信道重映射的方法及装置
CN101827393A (zh) * 2010-03-26 2010-09-08 中兴通讯股份有限公司 物理混合重传指示信道的映射方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227261A (zh) * 2008-02-04 2008-07-23 中兴通讯股份有限公司 一种物理混合重传指示信道资源的分配方法
CN101615993A (zh) * 2008-06-23 2009-12-30 华为技术有限公司 信道重映射的方法及装置
CN101465720A (zh) * 2009-01-23 2009-06-24 中兴通讯股份有限公司 一种发送上行harq反馈信息的方法和装置
CN101827393A (zh) * 2010-03-26 2010-09-08 中兴通讯股份有限公司 物理混合重传指示信道的映射方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093573A1 (ko) * 2014-12-08 2016-06-16 엘지전자 주식회사 5개를 초과하는 셀들을 반송파 집성에 따라 사용할 때의 pucch 전송 방법 및 사용자 장치

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