WO2013107264A1 - Procédé d'affectation de ressources de signalisation utilisant un signal de référence de démodulation de liaison montante, et station de base - Google Patents

Procédé d'affectation de ressources de signalisation utilisant un signal de référence de démodulation de liaison montante, et station de base Download PDF

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Publication number
WO2013107264A1
WO2013107264A1 PCT/CN2012/087695 CN2012087695W WO2013107264A1 WO 2013107264 A1 WO2013107264 A1 WO 2013107264A1 CN 2012087695 W CN2012087695 W CN 2012087695W WO 2013107264 A1 WO2013107264 A1 WO 2013107264A1
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WIPO (PCT)
Prior art keywords
signaling
cyclic shift
demodulation reference
terminal
index
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PCT/CN2012/087695
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English (en)
Chinese (zh)
Inventor
弓宇宏
孙云锋
张峻峰
李书鹏
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中兴通讯股份有限公司
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Publication of WO2013107264A1 publication Critical patent/WO2013107264A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • the present invention relates to the field of wireless communication technologies, and relates to a signaling resource allocation method, and particularly to a signaling resource allocation method and base station for an uplink demodulation reference signal in a Long Term Evolution (Advanced-Advanced) (LTE-A, Long Term Evolution - Advanced) system. .
  • LTE-A Long Term Evolution-Advanced
  • LTE-A Long Term Evolution - Advanced
  • the DMRS (Dynamic Demodulation Reference Signal) is used to demodulate data in the user's Physical Uplink Shared Channel (PUSCH).
  • the PUSCH demodulation reference signal r p H (-) is defined as:
  • 3 ⁇ 4 A ( "DWS + «D3 ⁇ 4RS,A + " PN (" S ) ) mod 12
  • PN S ) represents a cyclic shift hopping pattern
  • the first cyclic shift is also notified by 3-bit cyclic shift signaling in the RRC signaling, as shown in Table 1;
  • the 43 ⁇ 4R is also referred to as the second cyclic shift, and is notified by 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the downlink control channel, as shown in Table 2.
  • the uplink demodulation reference signal (DMRS) is mapped to all consecutive subcarriers on the demodulation reference symbol of the physical resource block where the PUSCH is located when the physical resource is mapped, as shown in FIG.
  • LTE-A is an evolution of LTE technology for higher data transmission rates and spectrum utilization efficiency.
  • coordinated multipoint transmission / reception (CoMP, Coordinated Multiple Point Transmission / Reception) is 3rd Generation Partnership Project (3 GPP, 3 rd Generation Partnership Project) into the LTE- Advanced In the technical framework.
  • CoMP is mainly for cell edge users, and refers to multiple transmission points separated in the geographical location to cooperate for one or more transfer services.
  • the difference between the CoMP architecture and the existing R8/9/10 network architecture is that for the CoMP architecture, there are multiple geographically separated transmission points serving edge users, while the LTE R8/9/10 traditional network architecture, regardless of the center.
  • the user or the edge user only serves the cell in which they are located. So at In the uplink, only the base station serving the user receives the uplink data of the user and performs demodulation check processing to be forwarded to the upper layer.
  • the CoMP architecture when the uplink transmission occurs, multiple transmission points are received from the user. Upstream data.
  • 3GPP proposes a variety of CoMP scenarios for CoMP, including four scenarios, where scenario 1 and scenario 2 are homogeneous network scenarios, and scenario 3 and scenario 4 are heterogeneous network scenarios.
  • the scenario 1 is the collaboration in the intra-eNodeB
  • the scenario 2 is the collaboration under the inter-eNodeB
  • the scenario 3 is that the macro cell and the micro cell use different Cell IDs
  • the scenario 4 is that the macro cell uses the same same as all the micro cells under the coverage.
  • Cell ID is the same as all the micro cells under the coverage.
  • CoMP improves the performance of cell edge users
  • an edge user occupies multiple resources of the system (not only occupies resources of the serving cell but also occupies resources of other coordinated cells), thereby causing system resource utilization. Decline.
  • the CoMP scenario needs to support user pairing between different cells.
  • the current DMRS mechanism cannot support the inter-cell user configuration very well, especially when the bandwidth users do not pair with each other.
  • the macro cell in CoMP scenario 4 uses the same Cell lD as all the micro cells in its coverage, and the presence of the micro cell can effectively improve the hotspot coverage and blind spot coverage of the macro cell, so that more users can be supported under the same Cell ID.
  • communication, and therefore further requirements for the capacity of the uplink DMRS In response to this, many companies tend to support the introduction of Interleaved Frequency Division Multiplexing (IFDM) and user-specific base sequence configuration techniques for DMRS in the LTE-A R1 phase to address the paired user interference and capacity of the above DMRS. problem.
  • IFDM Interleaved Frequency Division Multiplexing
  • the embodiment of the invention provides a signaling resource allocation method and a base station for an uplink demodulation reference signal.
  • a signaling resource allocation method for an uplink demodulation reference signal provided by the present invention includes: the network side indicates, by using uplink control signaling and/or radio resource control signaling of a physical downlink control channel, an uplink demodulation reference signal to a terminal Subcarrier position information and/or base sequence configuration information.
  • the foregoing method may also have the following feature, where the network side uses the uplink control signaling.
  • the 3-bit cyclic shift/orthogonal mask signaling indicates the subcarrier position information and/or base sequence configuration information by joint coding.
  • the above method may also have the following feature: the network side indicates the subcarrier position information and/or by joint coding using 3-bit cyclic shift signaling in the RRC signaling. Base sequence configuration information.
  • the foregoing method may further have the following feature: when the subcarrier location information includes two levels of subcarrier position information, the network side indicates the uplink to the terminal by using uplink control signaling and/or radio resource control signaling of the physical downlink control channel.
  • the subcarrier position information of the demodulation reference signal includes:
  • the network side uses the 3-bit cyclic shift signaling in the radio resource control signaling to indicate the first sub-carrier position information in a joint coding manner, and uses a 3-bit cyclic shift in the uplink control signaling.
  • the orthogonal mask signaling indicates the second subcarrier position information by means of joint coding.
  • the foregoing method may further have the following feature: the using the 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling to indicate the subcarrier location information by means of joint coding includes: using the cyclic shift A portion of the index of the bit/orthogonal mask signaling indicates one type of subcarrier position information; a portion of the index indicates another seed carrier position information; and the remaining index indicates the third seed carrier position information.
  • the above method may also have the following features: using an index 000, 011, 101 in the cyclic shift/orthogonal mask signaling to indicate a subcarrier position information;
  • Using an index 000, 010, 101 in the cyclic shift/orthogonal mask signaling indicates a subcarrier position information
  • Index 001, 100, 111 in the cyclic shift/orthogonal mask signaling is used to indicate another seed carrier location information
  • the third seed carrier position information is indicated using the remaining indices in the cyclic shift/orthogonal mask signaling.
  • the foregoing method may further have the following feature: the using the 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling to indicate the base sequence configuration information by means of joint coding includes: A portion of the index using the cyclic shift/orthogonal mask signaling indicates one base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • the above method may also have the following features, using an index in the cyclic shift/orthogonal mask signaling
  • 000, 001, 010, 111 indicate a base sequence configuration information
  • the other base sequence configuration information is indicated using indices 011, 100, 101, 110 in the cyclic shift/orthogonal mask signaling.
  • the foregoing method may further have the following feature: the indicating, by using the three-bit cyclic shift signaling in the RRC signaling, that the subcarrier location information is:
  • a part of the index in the cyclic shift signaling is used to indicate one type of subcarrier position information, a part index indicates another seed carrier position information, and a remaining index indicates third seed carrier position information.
  • the above method may also have the following features: using index 0, 3, 5 in the cyclic shift signaling to indicate one type of subcarrier position information; using index 1, 4, 7 in the cyclic shift signaling to indicate another Seed carrier location information; third seed carrier location information is indicated using indices 2, 6 in the cyclic shift signaling.
  • the foregoing method may further have the following feature: the indicating, by using the three-bit cyclic shift signaling in the RRC signaling, that the base sequence configuration information is:
  • a portion of the index in the cyclic shift signaling is used to indicate one base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • the above method may also have the following features: using an index 0, 2, 4, 6 in the cyclic shift signaling to indicate a base sequence configuration information; using indices 1, 3, 5 in the cyclic shift signaling , 7 indicates another base sequence configuration information.
  • the foregoing method may further have the following feature: the three subcarrier position informations are respectively as follows: instructing the terminal to send an uplink demodulation reference signal on an even subcarrier index position on an uplink demodulation reference symbol of the allocated physical resource block,
  • the two base sequence configuration information are respectively as follows: Instructing the terminal to send an uplink demodulation reference signal according to the base sequence 1 on the uplink demodulation reference symbol of the allocated physical resource block;
  • the base sequence 1 is generated by the physical cell identifier of the cell where the terminal is located; the sequence sequence 2 is generated by the virtual cell identifier of the cell where the terminal is located.
  • the foregoing method may further have the following feature: the using the 3-bit cyclic shift signaling in the RRC control signaling to indicate the first sub-carrier location information by means of joint coding includes:
  • a portion of the index using the cyclic shift signaling indicates one type of subcarrier position information, and the remaining index indicates another seed carrier position information.
  • the above method may also have the following features: using index 0, 3, 4, 5 in the cyclic shift signaling to indicate one type of subcarrier position information, and using the remaining index in the cyclic shift signaling to indicate another seed carrier location information.
  • the one subcarrier position information and the other seed carrier location information are respectively as follows:
  • the terminal is instructed to transmit an uplink demodulation reference signal at an even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.
  • the foregoing method may further have the following feature: the using the 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling to indicate the second subcarrier position information by means of joint coding includes: using the cyclic shift A portion of the index of the bit/orthogonal mask signaling indicates one type of subcarrier position information, and the remaining index indicates another seed carrier position information.
  • the above method may also have the following features, using an index in the cyclic shift/orthogonal mask signaling
  • the one subcarrier position information and the other seed carrier location information are respectively as follows:
  • the terminal is instructed to transmit an uplink demodulation reference signal at an odd subcarrier index position on the allocated physical resource uplink demodulation reference symbol.
  • the embodiment of the present invention further provides a method for transmitting an uplink demodulation reference signal, where the method further includes: after receiving, by the terminal, uplink control signaling and/or radio resource control signaling of the physical downlink control channel, determining the uplink control.
  • the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal indicated by the signaling and/or radio resource control signaling is used at a corresponding subcarrier position on the uplink demodulation reference symbol of the allocated physical resource block.
  • the corresponding base sequence transmits a corresponding uplink demodulation reference signal.
  • the embodiment of the present invention further provides a base station, including: a signaling resource allocation module, configured to: indicate, by using uplink control signaling and/or radio resource control signaling of a physical downlink control channel, a sub-demodulation reference signal Carrier location information and/or base sequence configuration information.
  • a signaling resource allocation module configured to: indicate, by using uplink control signaling and/or radio resource control signaling of a physical downlink control channel, a sub-demodulation reference signal Carrier location information and/or base sequence configuration information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to indicate the subcarrier location by joint coding using 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling. Information and/or base sequence configuration information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to indicate the subcarrier position information and/or by joint coding using 3-bit cyclic shift signaling in the RRC control signaling. Base sequence configuration information.
  • the signaling resource allocation module is configured to indicate, by using uplink control signaling and/or radio resource control signaling of the physical downlink control channel, subcarrier position information of the uplink demodulation reference signal to the terminal, including :
  • the signaling indicates the second subcarrier position information by means of joint coding.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to use the The 3-bit cyclic shift/ortho-mask signaling in the row control signaling indicates the subcarrier location information by means of joint coding, including:
  • a portion of the index using the cyclic shift/orthogonal mask signaling indicates one type of subcarrier position information; a portion of the index indicates another seed carrier position information; and the remaining index indicates third seed carrier position information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: use an index 000, 011, 101 in the cyclic shift/orthogonal mask signaling to indicate a subcarrier position information;
  • the index 001, 100, 110 in the cyclic shift/orthogonal mask signaling indicates another seed carrier location information; the third seed carrier location information is indicated using the remaining indices in the cyclic shift/orthogonal mask signaling ;
  • Using an index 000, 010, 101 in the cyclic shift/orthogonal mask signaling indicates a subcarrier position information
  • Index 001, 100, 111 in the cyclic shift/orthogonal mask signaling is used to indicate another seed carrier location information
  • the third seed carrier position information is indicated using the remaining indices in the cyclic shift/orthogonal mask signaling.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to indicate the base sequence configuration information by joint coding using 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling.
  • a portion of the index using the cyclic shift/orthogonal mask signaling indicates a base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: indicate a base sequence configuration information by using indexes 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling;
  • the signaling resource allocation module is configured to use the 3-bit cyclic shift signaling in the RRC signaling to indicate the subcarrier location information by means of joint coding, including:
  • a part of the index in the cyclic shift signaling is used to indicate one type of subcarrier position information, a part index indicates another seed carrier position information, and a remaining index indicates third seed carrier position information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: use a index 0, 3, 5 in the cyclic shift signaling to indicate a subcarrier position information; use the cyclic shift signaling
  • the index 1, 4, 7 in the middle indicates another seed carrier position information; the third seed carrier position information is indicated using the indices 2, 6 in the cyclic shift signaling.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to indicate the base sequence configuration information by joint coding in a manner of using 3-bit cyclic shift signaling in the uplink control signaling:
  • a portion of the index in the cyclic shift signaling is used to indicate one base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: use a index 0, 2, 4, 6 in the cyclic shift signaling to indicate a base sequence configuration information; Indexes 1, 3, 5, and 7 in the signaling indicate another base sequence configuration information.
  • the foregoing base station may also have the following characteristics: the three subcarrier position informations are respectively as follows: Instructing the terminal to send an uplink demodulation reference signal on an even subcarrier index position on an uplink demodulation reference symbol of the allocated physical resource block,
  • the terminal is instructed to transmit an uplink demodulation reference signal at all subcarrier index positions on the allocated physical resource uplink demodulation reference symbols.
  • the foregoing base station may also have the following features: the two base sequence configuration information are respectively as follows: Instructing the terminal to send the uplink demodulation reference signal according to the base sequence 1 on the uplink demodulation reference symbol of the allocated physical resource block;
  • the base sequence 1 is generated by the physical cell identifier of the cell where the terminal is located; the base sequence 2 is generated by the virtual cell identifier of the cell where the terminal is located.
  • the signaling resource allocation module is configured to indicate the first subcarrier location information by joint coding in a manner of using 3-bit cyclic shift signaling in the RRC control signaling in the following manner. :
  • a portion of the index using the cyclic shift signaling indicates one type of subcarrier position information, and the remaining index indicates another seed carrier position information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: use a index 0, 3, 4, 5 in the cyclic shift signaling to indicate a subcarrier position information, and use the cyclic shift The remaining index in the signaling indicates another seed carrier location information.
  • the foregoing base station may also have the following features, where the one type of subcarrier position information and the other seed carrier position information are respectively as follows:
  • the terminal is instructed to transmit an uplink demodulation reference signal at an even or odd subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to indicate the second sub-join by means of joint coding using 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling in the following manner Carrier location information:
  • a portion of the index using the cyclic shift/orthogonal mask signaling indicates one type of subcarrier position information, and the remaining index indicates another seed carrier position information.
  • the foregoing base station may further have the following feature, the signaling resource allocation module is configured to: use an index 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling to indicate a subcarrier position information; The remaining indices in the cyclic shift/orthogonal mask signaling indicate another seed carrier location information.
  • the foregoing base station may also have the following features, where the one type of subcarrier position information and the other seed carrier position information are respectively as follows: Instructing the terminal to send an uplink demodulation reference signal on an even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block;
  • the terminal is instructed to transmit an uplink demodulation reference signal at an odd subcarrier index position on the allocated physical resource uplink demodulation reference symbol.
  • the embodiment of the present invention further provides a terminal, including a receiving module, a determining module, and a sending module, where
  • the receiving module is configured to: receive uplink control signaling and/or wireless resource control signaling of a physical downlink control channel;
  • the determining module is configured to: determine subcarrier position information and/or base sequence configuration information of the uplink demodulation reference signal indicated by the uplink control signaling and/or the radio resource control signaling;
  • the sending module is configured to: send a corresponding uplink demodulation reference signal by using a corresponding base sequence at a corresponding subcarrier position on the uplink demodulation reference symbol of the allocated physical resource block.
  • the embodiment of the present invention provides a dynamic/semi-static signaling implicit allocation method for the uplink demodulation reference signal, which can notify the terminal of the IFDM and the base sequence configuration resource without adding additional signaling bit overhead.
  • the reference signal signaling resources of each uplink user are allocated sufficiently and flexibly, and the system performance is improved.
  • FIG. 1 is a mapping diagram of a DMRS signal on an allocated physical resource block in the related art.
  • Figure 2 is a mapping diagram of the DMRS signal on the allocated physical resource block after the introduction of the IFDM.
  • Figure 3 is a mapping diagram of the DMRS signal on the allocated physical resource block after the introduction of the IFDM.
  • Figure 4 is a mapping diagram of the DMRS signal on the allocated physical resource block after the introduction of the IFDM.
  • Figure 5 is a block diagram of a base station according to an embodiment of the present invention
  • Figure 6 is a block diagram of a terminal in accordance with an embodiment of the present invention.
  • An embodiment of the present invention provides a signaling resource allocation method for an uplink demodulation reference signal, including: the network side indicates an uplink demodulation reference to the terminal by using an uplink control signaling and/or radio resource control signaling of the physical downlink control channel. Subcarrier position information and/or base sequence configuration information of the signal.
  • the method further includes: after receiving, by the terminal, the uplink control signaling and/or the radio resource control signaling, using the corresponding subcarrier position on the uplink demodulation reference symbol of the allocated physical resource block
  • the base sequence transmits a corresponding uplink demodulation reference signal.
  • the network side includes a base station.
  • the 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel on the network side indicates the subcarrier position information or base of the uplink demodulation reference signal to the terminal by means of joint coding. Sequence configuration information.
  • the network side uses the 3-bit cyclic shift signaling in the RRC signaling to indicate to the terminal the subcarrier position information or the base sequence configuration information of the uplink demodulation reference signal by means of joint coding.
  • the network side terminal indicates the two-level subcarrier position information of the uplink demodulation reference signal, where the first subcarrier position information is jointly encoded by the 3-bit cyclic shift signaling in the RRC control signaling.
  • the second subcarrier position information is indicated by means of joint coding by 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel.
  • the subcarrier location information includes the following three types:
  • the base sequence configuration information includes the following two types:
  • the base sequence 1 is generated by the physical cell identifier of the cell where the terminal is located;
  • the base sequence 2 is generated by the virtual cell identifier of the cell where the terminal is located;
  • the virtual cell identifier is pre-configured to the terminal by the network side.
  • the cyclic shift value in the cyclic shift/orthogonal mask signaling different subcarrier position information or base sequence configuration information is indicated, and preferably, the cyclic shift value is a large cyclic shift/positive
  • the cross-mask index allocates the same sub-carrier position information or base sequence configuration information, and allocates different sub-carrier position information or base sequence configuration information for the cyclic shift/orthogonal mask index corresponding to the smaller cyclic shift value.
  • a part of the index using the cyclic shift/orthogonal mask signaling indicates one type of subcarrier position information; a part of the index indicates another seed carrier position information; and the remaining index indicates the third seed carrier position information.
  • indices 000, 011, 101 in the cyclic shift/orthogonal mask signaling indicate that one of the subcarrier position information ring shift/orthogonal mask signaling indexes 001, 100, 110 indicate another Seed carrier location information; the remaining indices in the cyclic shift/orthogonal mask signaling indicate third seed carrier location information.
  • the three types of subcarrier position information are respectively as follows (no order relationship): instructing the terminal to send an uplink demodulation reference signal on an even subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block;
  • the terminal is instructed to transmit an uplink demodulation reference signal at all subcarrier positions on the uplink demodulation reference symbol of the allocated physical resource block.
  • a part of the index using the cyclic shift/orthogonal mask signaling indicates one base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • the indices 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling indicate a base sequence configuration information
  • 110 indicates another base sequence configuration information. This is just an example, and other partitions can be used as needed.
  • the base sequence configuration information indicates that the terminal sends an uplink demodulation reference signal according to the base sequence 1 (base sequence 2) on the uplink demodulation reference symbol of the allocated physical resource block, and another base sequence configuration information indicates that the terminal is The uplink demodulation reference signal is transmitted according to the base sequence 2 (base sequence 1) on the uplink demodulation reference symbol of the allocated physical resource block.
  • the cyclic shift and the orthogonal mask value division in the cyclic shift/orthogonal mask signaling indicate different subcarrier position information or base sequence configuration information, and preferably, the cyclic shift values are relatively large and positive.
  • the cyclic shift/orthogonal mask index with a large interval value is assigned the same subcarrier position information, which is a cyclic shift/orthogonal mask with a small cyclic shift value and a small distance between orthogonal mask values.
  • the code index assigns different subcarrier position information. That is, the distance between the cyclic shift values and the distance between the orthogonal mask values are comprehensively considered, and the distance is divided according to the weighted distance between the two.
  • the distance between the orthogonal mask values can be the spin distance.
  • the weighted distance refers to a weighted sum of the distance between the cyclic shift values indicated by the cyclic shift/orthogonal mask index and the distance between the orthogonal mask values.
  • index 000, 010, 101 in cyclic shift/orthogonal mask signaling indicates one type of subcarrier position information
  • index 001, 100 in cyclic shift/orthogonal mask signaling 111 indicating another seed carrier location information
  • the remaining indices in the cyclic shift/orthogonal mask signaling indicate third seed carrier location information.
  • the one subcarrier location information indicates that the terminal sends an uplink demodulation reference signal on an even (odd) subcarrier index position on an uplink demodulation reference symbol of the allocated physical resource block
  • another seed carrier location information indicates that the terminal is in the Allocating an uplink demodulation reference signal on an odd (even) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block
  • the third seed carrier location information indicating all the children on the uplink demodulation reference symbol of the allocated physical resource block by the terminal
  • the uplink demodulation reference signal is transmitted at the carrier position.
  • different subcarrier position information or base sequence configuration information is indicated, and preferably, the same subcarrier position is allocated to the cyclic shift index with a large cyclic shift value.
  • Information, different subcarrier position information or base sequence configuration is allocated for the cyclic shift index with a small cyclic shift value.
  • a part of the index in the cyclic shift signaling is used to indicate one type of subcarrier position information, a part of the index indicates another seed carrier position information, and the remaining index indicates the third seed carrier position information.
  • the indexes 0, 3, and 5 in the cyclic shift signaling indicate one type of subcarrier position information; the indexes 1, 4, and 7 in the cyclic shift signaling indicate another seed carrier position information; The indices 2, 6 in the shift signaling indicate the third seed carrier location information.
  • the one subcarrier location information indicates that the terminal sends an uplink demodulation reference signal on an even (odd) subcarrier index position on an uplink demodulation reference symbol of the allocated physical resource block
  • another seed carrier location information indicates that the terminal is in the Allocating an uplink demodulation reference signal on an odd (even) subcarrier index position on the uplink demodulation reference symbol of the allocated physical resource block
  • the third seed carrier location information indicating all the children on the uplink demodulation reference symbol of the allocated physical resource block by the terminal
  • the uplink demodulation reference signal is transmitted at the carrier position.
  • a part of the index in the cyclic shift signaling is used to indicate one base sequence configuration information, and the remaining index indicates another base sequence configuration information.
  • indices 0, 2, 4, 6 in the cyclic shift signaling indicate a base sequence configuration information; indices 1, 3, 5, 7 in the cyclic shift signaling indicate another base sequence configuration information.
  • the base sequence configuration information indicates that the terminal sends an uplink demodulation reference signal according to the base sequence 1 (base sequence 2) on the uplink demodulation reference symbol of the allocated physical resource block, and the other base sequence configuration information indication
  • the terminal transmits an uplink demodulation reference symbol according to the base sequence 2 (base sequence 1) on the uplink demodulation reference symbol of the allocated physical resource block.
  • the first subcarrier location information is indicated according to the 3-bit cyclic shift signaling in the radio resource control signaling, where a part of the index of the cyclic shift signaling is used to indicate a subcarrier position information, and the remaining index Used to indicate another seed carrier location information.
  • the index 0, 3, 4, 5 in the cyclic shift signaling indicates one type of subcarrier position information, and the remaining index in the cyclic shift signaling is used to indicate another seed carrier position information.
  • the subcarrier location information indicates that the terminal sends an uplink demodulation reference signal on all subcarriers on the uplink demodulation reference symbol of the allocated physical resource block, and another seed carrier location information indicates that the terminal uplinks in the allocated physical resource block.
  • An uplink demodulation reference signal is transmitted at an even or odd subcarrier index position on the demodulation reference symbol.
  • the second subcarrier location information is indicated according to 3-bit cyclic shift/orthogonal mask signaling in uplink control signaling of a physical downlink control channel, where the cyclic shift/orthogonal mask signal A part of the index of the order is used to indicate one type of subcarrier position information, and the remaining index is used to indicate another seed carrier position information.
  • the indices 000, 001, 010, 111 in the cyclic shift/orthogonal mask signaling indicate one type of subcarrier position information; the remaining index indications in the cyclic shift/orthogonal mask signaling Another seed carrier location information.
  • the one subcarrier location information indicates that the terminal sends an uplink demodulation reference signal on an even (odd) subcarrier index position on an uplink demodulation reference symbol of the allocated physical resource block, and another seed carrier location information indicates that the terminal is in the The uplink demodulation reference signal is transmitted on the odd (even) subcarrier index position on the allocated physical resource uplink demodulation reference symbol.
  • the network side jointly indicates the cyclic shift/orthogonal mask/subcarrier position of the user by using the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel.
  • the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in Table 1:
  • the table 1 shows the second cyclic shift value used by the uplink demodulation reference signal obtained by the user through the uplink control signaling of the downlink physical control channel, and [ W W(0) w ⁇ (l)] The orthogonal mask used by the user upstream demodulation reference signal on each layer.
  • the R1 user resolves the table after receiving the cyclic shift/orthogonal mask signaling, and the R10 user does not make the last column of the table after receiving the cyclic shift/orthogonal mask signaling. Analysis.
  • the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask index 000, 011, 101 are orthogonal to each other by using different cyclic shifts;
  • the cyclic shift/orthogonal mask index 001, 100, 110 indicates that the user uplink demodulation reference signals are orthogonal to each other by using different cyclic shifts;
  • the user uplink demodulation reference signals indicated by the cyclic shift/orthogonal mask indices 000/011/101, 001/100/110 are orthogonal to each other by using different subcarrier positions; cyclic shift/orthogonal mask
  • the user uplink demodulation reference signals indicated by indices 010, 111 are orthogonal by using different cyclic shift/orthogonal masks.
  • R11 users and R10 users are multiplexed in one or two layers, or more than two layers are multiplexed but under chronological channel conditions:
  • the network side may preferentially allocate any of the cyclic shift/orthogonal mask indexes remaining in Table 1 to the R10 user;
  • the network side can preferentially allocate any of the remaining cyclic shift/orthogonal mask indices in Table 1 to the R10 user.
  • the network side may give priority to the R10.
  • the user allocates any one of the cyclic shift/orthogonal mask indexes except 011 and 100 remaining in Table 1;
  • the network side may preferentially allocate any cyclic shift/orthogonal except for 101 and 110 remaining in Table 1 to the R10 user.
  • Mask index may be preferentially allocate any cyclic shift/orthogonal except for 101 and 110 remaining in Table 1 to the R10 user.
  • the network side jointly indicates the cyclic shift/orthogonal mask/subcarrier position of the user by using the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel.
  • the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in Table 2:
  • the uplink demodulation reference signal is transmitted on all subcarriers on the reference symbol.
  • the R11 user parses the table after receiving the cyclic shift/orthogonal mask signaling, and the R10 user does not parse the last column of the table after receiving the cyclic shift/orthogonal mask signaling. .
  • User uplink demodulation reference signal indicated by cyclic shift/orthogonal mask index 000, 010, 101 The user uplink demodulation reference signal cyclic shift/orthogonal mask index 000/010/101, 001/100/111 indicated by the cyclic shift/orthogonal mask index 001, 100, 111 is used by using different sub- Carrier positions are orthogonal to each other;
  • the cyclic shift/orthogonal mask index 011, 110 indicates that the user uplink demodulation reference signals are orthogonal by using different cyclic shift/orthogonal masks.
  • R11 users and R10 users are multiplexed in one or two layers, or more than two layers are multiplexed but under chronological channel conditions:
  • the network side may preferentially allocate any of the remaining cyclic shift/orthogonal mask indexes in Table 2 to the R10 user;
  • the network side can preferentially allocate any of the remaining cyclic shift/orthogonal mask indices in Table 2 to the R10 user.
  • the network side may give priority to the R10.
  • the user allocates all the cyclic shift/orthogonal mask indexes except 011 remaining in Table 2; if the cyclic shift/orthogonal mask index used by the R11 user is 110, the network side can preferentially allocate the R10 user. All of the cyclic shift/orthogonal mask indices except for 111 remaining in Table 2.
  • the network side jointly indicates the cyclic shift value and the subcarrier position of the user through the original 3-bit cyclic shift signaling in the radio resource control signaling (RRC).
  • RRC radio resource control signaling
  • the network side indicates the subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in Table 3:
  • the first cyclic shift value obtained by the user through the radio resource control signaling is indicated.
  • the R11 user parses the table after receiving the cyclic shift/orthogonal mask signaling, and the R10 user does not make the last column of the table after receiving the cyclic shift/orthogonal mask signaling.
  • the network side jointly indicates the cyclic shift value and the first subcarrier position through the original 3-bit cyclic shift signaling in the Radio Resource Control Signaling (RRC).
  • RRC Radio Resource Control Signaling
  • the network side indicates the first subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in Table 4:
  • the first cyclic shift value obtained by the user through the radio resource control signaling is indicated.
  • the network side jointly indicates the cyclic shift, the orthogonal mask, and the second subcarrier position of the user by using the original 3-bit cyclic shift/orthogonal mask signaling in the uplink control signaling of the physical downlink control channel.
  • the network side indicates the second subcarrier position of the user on the uplink demodulation reference symbol of the allocated physical resource block as shown in Table 5:
  • the uplink demodulation reference signal is transmitted.
  • the user When the user receives a comb value of w0, the user will directly send an uplink demodulation reference signal corresponding to the first cyclic shift value on all subcarriers on the uplink demodulation reference symbol of the allocated physical resource block; when the user receives When the obtained comb value is wl, the user will continue to transmit the uplink demodulation reference signal on its even or odd subcarriers according to the signaling indication in Table 5 below.
  • the network side jointly indicates the cyclic shift/orthogonal mask/base sequence configuration information of the user through the original cyclic shift/orthogonal mask 3-bit signaling in the uplink control signaling of the downlink physical control channel.
  • the network side performs a joint instruction of the base sequence configuration signal cyclic shift/orthogonal mask/base sequence configuration information of the user on the allocated physical resource block as shown in Table 6.
  • ⁇ represents the second cyclic shift value used by the uplink demodulation reference signal obtained by the user through the uplink control signaling of the downlink physical control channel on each layer
  • w ⁇ i)] represents the orthogonal mask used by the user uplink demodulation reference signal on each layer.
  • the base sequence 1 is generated by the physical cell identifier of the cell where the terminal is located, and the base sequence 2 is generated by the virtual cell identifier of the cell where the terminal is located.
  • the virtual cell identifier is pre-configured by the network side.
  • the R11 user parses the table after receiving the cyclic shift/orthogonal mask signaling, and the R10 user does not parse the last column of the table after receiving the cyclic shift/orthogonal mask signaling. .
  • the cyclic shift/orthogonal mask index 000, 001, 010, 111 indicates that the user uplink demodulation reference signals are orthogonal to each other by using different cyclic shifts;
  • the cyclic shift/orthogonal mask index 011, 100, 101, 110 indicates that the user uplink demodulation reference signals are orthogonal to each other by using different cyclic shifts;
  • Cyclic Shift / Orthogonal Mask Index The user indicated by the 000/001/010/111, 011/100/101/110 uplink demodulation reference signals are quasi-orthogonal to each other by using different base sequences.
  • the R10 user is always configured as the base sequence 1 of the cell
  • the base sequence 1 is configured to be orthogonal to the R10 users using different cyclic shifts, and the base sequence 2 is configured to be quasi-orthogonal with the R10 users using different base sequences. ;
  • the R11 user is in a cell that cooperates with the own cell, it is configured that the coordinated cell base sequence 2 and the R10 user use different cyclic shifts to be orthogonal to each other, and the cooperative base cell sequence 1 is configured to use different base sequences with the R10 users. Quasi-orthogonal.
  • the network side jointly indicates the cyclic shift value of the user and the base sequence configuration information through the original 3-bit cyclic shift signaling in the Radio Resource Control Signaling (RRC).
  • RRC Radio Resource Control Signaling
  • the network side indicates the base sequence configuration information of the user on the allocated physical resource block as shown in Table 7:
  • the data in the table 7 indicates the first cyclic shift value obtained by the user through the radio resource control signaling.
  • the base sequence 1 is generated by the physical cell identity of the cell in which the terminal is located, and the base sequence 2 is generated by the virtual cell identity of the cell in which the terminal is located.
  • the virtual cell identifier is pre-configured by the network side.
  • the R11 user parses the table after receiving the cyclic shift/orthogonal mask signaling, and the R10 user does not parse the last column of the table after receiving the cyclic shift/orthogonal mask signaling. .
  • the cyclic shift/orthogonal mask index 0, 2, 4, 6 indicates that the user uplink demodulation reference signals are orthogonal to each other by using different cyclic shifts;
  • the cyclic uplink/orthogonal mask index 1, 3, 5, 7 indicates that the user uplink demodulation reference signals are orthogonal to each other by using different cyclic shifts;
  • the cyclic shift/orthogonal mask index 0/2/4/6, 1/3/5/7 indicates that the user uplink demodulation reference signals are quasi-orthogonal to each other by using different base sequences.
  • the R10 user is always configured as the base sequence 1 of the cell
  • the R11 user is also in the cell, it is configured by using the cell-based sequence 1 and the R10 user. Different cyclic shifts are orthogonal to each other, and are configured to be quasi-orthogonal to each other by using a different base sequence of the base sequence 2 and the R10 user;
  • the R11 user is in a cell that cooperates with the own cell, it is configured that the coordinated cell base sequence 2 and the R10 user use different cyclic shifts to be orthogonal to each other, and the cooperative base cell sequence 1 is configured to use different base sequences with the R10 users. Quasi-orthogonal.
  • the embodiment of the present invention further provides a base station, as shown in FIG. 5, including: a signaling resource allocation module, configured to: indicate, by using uplink control signaling and/or radio resource control signaling of a physical downlink control channel, an uplink to the terminal
  • a signaling resource allocation module configured to: indicate, by using uplink control signaling and/or radio resource control signaling of a physical downlink control channel, an uplink to the terminal
  • the subcarrier position information and/or the base sequence configuration information of the reference signal are demodulated.
  • the embodiment of the present invention further provides a terminal, as shown in FIG. 6, including a receiving module, a determining module, and a sending module, where
  • the receiving module is configured to: receive uplink control signaling and/or wireless resource control signaling of a physical downlink control channel;
  • the determining module is configured to: determine subcarrier position information and/or base sequence configuration information of the uplink demodulation reference signal indicated by the uplink control signaling and/or the radio resource control signaling;
  • the sending module is configured to: send a corresponding uplink demodulation reference signal by using a corresponding base sequence at a corresponding subcarrier position on the uplink demodulation reference symbol of the allocated physical resource block.
  • the signaling resource allocation module specifically indicates the subcarrier position information and/or the base sequence configuration information, and determines how the module determines the subcarrier position information and/or the base sequence configuration information of the uplink demodulation reference signal indicated by the base station, refer to the method implementation. example.
  • the present invention proposes a dynamic/semi-static signaling implicit manner for an uplink demodulation reference signal.
  • the allocation method can notify the terminal of the IFDM and the base sequence configuration resources without adding additional signaling bit overhead, and can allocate the reference signal signaling resources of each uplink user more fully and flexibly, and improve system performance.

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  • Engineering & Computer Science (AREA)
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  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes et formes de réalisation de l'ivention se réfèrent à un procédé d'affectation de ressources de signalisation utilisant un signal de référence de démodulation de liaison montante, à un procédé de transmission, à une station de base et à un terminal. Le procédé d'affectation de ressources de signalisation comprend l'étape consistant à indiquer, du côté réseau, des données d'emplacement de sous-porteuse et/ou des données de configuration de séquence de base relatives à un signal de référence de démodulation de liaison montante, au moyen d'une signalisation de commande de liaison montante et/ou d'une signalisation de commande de ressources radio d'une voie de commande physique de liaison descendante.
PCT/CN2012/087695 2012-01-20 2012-12-27 Procédé d'affectation de ressources de signalisation utilisant un signal de référence de démodulation de liaison montante, et station de base WO2013107264A1 (fr)

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