WO2015018086A1 - Procédé de mappage de ressources pour des informations de rétroaction, procédé de détection, dispositif et système - Google Patents

Procédé de mappage de ressources pour des informations de rétroaction, procédé de détection, dispositif et système Download PDF

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Publication number
WO2015018086A1
WO2015018086A1 PCT/CN2013/081223 CN2013081223W WO2015018086A1 WO 2015018086 A1 WO2015018086 A1 WO 2015018086A1 CN 2013081223 W CN2013081223 W CN 2013081223W WO 2015018086 A1 WO2015018086 A1 WO 2015018086A1
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WIPO (PCT)
Prior art keywords
uplink data
subframe
feedback information
information
feedback
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PCT/CN2013/081223
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English (en)
Chinese (zh)
Inventor
王轶
周华
Original Assignee
富士通株式会社
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Publication date
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to PCT/CN2013/081223 priority Critical patent/WO2015018086A1/fr
Priority to CN201380076707.4A priority patent/CN105229960A/zh
Publication of WO2015018086A1 publication Critical patent/WO2015018086A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a resource mapping method, a detection method, an apparatus, and a system for feedback information. Background technique
  • Hybrid Automatic Repeat Request (HA Q) is often used in wireless communication systems.
  • HARQ is implemented by combining ARQ (Automatic Repeat Request) technology with Forward Error Correction (FEC) technology.
  • FEC Forward Error Correction
  • the Cyclic Redundancy Check (CRC) is first used to determine whether the data block is correctly received. If an error is found, an ARQ is performed to request retransmission of data.
  • LTE Long Term Evolution
  • LTE-Advanced Enhanced Long Term Evolution
  • the HARQ technology is adopted.
  • the base station (NB or eNB) detects the CRC. If an error is found, the user terminal (UE, User Equipment, user equipment, or simply user or terminal) sends a retransmission request. After receiving the request, the user equipment retransmits the data block to the base station.
  • the PHICH Physical HARQ Indicator Channel
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • PUSCH Physical Uplink Shared Channel
  • k is fixed to 4
  • k may take different values depending on the TDD uplink and downlink configuration, but the value is a pre-fixed value known to both the user and the base station. After receiving the NACK, the user will retransmit on the same physical resource in the same way as the last transmission at the time of n+k+kl, and the user will not send it after receiving the ACK.
  • the PHICH channels of different users can be mapped to the same downlink physical resource element (RE).
  • a PHICH channel is mapped to a PHICH resource group (PHICH group for short), and is determined by an orthogonal complex Walsh sequence in the PHICH group, that is, each PHICH channel is uniquely determined by the PHICH group number ⁇ and the sequence number. , as shown in equation (1).
  • n PHICH ⁇ PRB RA + n DMRS ) mod N PHICH + 1 PHICH N PHICI
  • M is the DMRS indicated in the uplink scheduling control information (UL grant) of the latest scheduled PUSCH
  • Nf ⁇ H is the number of PHICH groups configured in the upper layer
  • I PHICH indicates a multiple of the number of PHICH groups configured in the upper layer.
  • Other cases 0.
  • the design of the PHICH only considers the case where one DCI schedules a PUSCH of one subframe, and for the TDD system, except for the uplink and downlink configuration 0, the design of the PHICH only considers one DCI to schedule a PUSCH of one subframe.
  • the design of the PHICH considers the case where one DCI schedules the PUSCH of two subframes, and the PHICH resource corresponding to the PUSCH of the second subframe and the PUSCH of the first subframe correspond to the PHICH resource completely. There is no overlap, that is, the PHICH resource is twice as large as other cases.
  • one control signaling scheduling transmission of multiple data channels is an effective way to save control signaling overhead.
  • a new network deployment scenario such as a small base station scenario
  • one control signaling scheduling transmission of multiple data channels is an effective way to save control signaling overhead.
  • how to avoid resource collisions and excessively redundant resources to improve channel efficiency is an urgent subject in the art.
  • An object of the embodiments of the present invention is to provide a resource mapping method, a detection method, a device, and a system for feedback information, so that feedback information of an uplink data signal sent in different subframes is used to carry feedback information in the same subframe.
  • the physical channel is sent.
  • a resource mapping method for feedback information includes:
  • the step of determining, according to the uplink data signal sent by the sending end in different subframes, the resources occupied by the feedback information of the uplink data signal sent in each subframe includes:
  • a resource mapping method for feedback information includes:
  • the step of determining, according to the uplink data signal sent by the sending end in different subframes, the resources occupied by the feedback information of the uplink data signal sent in each subframe includes:
  • a resource mapping method for feedback information includes:
  • the step of determining, according to the uplink data signal sent by the sending end in different subframes, the resources occupied by the feedback information of the uplink data signal sent in each subframe includes:
  • the number of time-frequency resource groups of the feedback channel carrying the feedback information is determined according to the pre-configured parameters and the downlink bandwidth; wherein the pre-configured parameter is less than or equal to 1/6, the time-frequency The number of resource groups is less than 3;
  • a base station device configured to send in each subframe according to an uplink data signal sent by a transmitting end in different subframes.
  • mapping unit which maps the resources occupied by the feedback information to a physical channel carrying feedback information in the same subframe, and sends the feedback information of the uplink data signal sent in different subframes through the physical channel;
  • the determining unit includes:
  • a first determining module configured, for each subframe that sends the uplink data, a cyclic shift sequence number of the pilot signal of the uplink data, where the uplink data of each subframe is guided according to downlink control information for scheduling the uplink data
  • the cyclic signal has different cyclic shift numbers
  • a second determining module configured to determine resources occupied by the feedback information of the uplink data signal sent in each subframe according to the cyclic shift sequence number and the first channel indication information.
  • a base station device includes: a determining unit, determined according to an uplink data signal sent by a transmitting end in different subframes, in each subframe.
  • mapping unit configured to map the resources occupied by the feedback information to a physical channel carrying feedback information in the same subframe, and send, by using the physical channel, feedback information of the uplink data signal sent in different subframes;
  • An acquiring module configured to obtain subframe number indication information of the subframe for each subframe in which the uplink data is sent;
  • a third determining module configured to determine, according to the subframe number indication information and the second channel indication information, resources occupied by feedback information of the uplink data signal sent in each subframe.
  • a base station device configured to send in each subframe according to an uplink data signal sent by a transmitting end in different subframes.
  • mapping unit which maps the resources occupied by the feedback information to a physical channel carrying feedback information in the same subframe, and sends the feedback information of the uplink data signal sent in different subframes through the physical channel;
  • the determining unit includes:
  • a fourth determining module configured to determine, according to the pre-configured parameters and the downlink bandwidth, a number of time-frequency resource groups of the feedback channel that carries the feedback information, where the pre-configured parameter is less than or equal to 1/ 6, the number of time-frequency resource groups is less than 3;
  • a fifth determining module configured to determine, according to the number of the time-frequency resource group and the third channel indication information, resources occupied by the feedback information of the uplink data signal sent in each subframe.
  • a method for detecting feedback information includes:
  • a cyclic shift sequence number of the pilot signal of the uplink data of the frame wherein the cyclic shift sequence number of the pilot signal of the uplink data of each subframe is different;
  • the user equipment determines each sub-subject according to a cyclic shift sequence number of each subframe and first channel indication information.
  • the user equipment detects feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • a method for detecting feedback information includes:
  • the user equipment acquires the subframe number indication information of each subframe for each subframe in which the uplink data is sent; the user equipment determines, according to the subframe sequence number indication information and the second channel indication information, the uplink data sent in each subframe.
  • the user equipment detects feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • a method for detecting feedback information includes:
  • the user equipment determining, by the user equipment, the number of time-frequency resource groups of the feedback channel that carries the feedback information, according to the pre-configured parameters and the downlink bandwidth, where the pre-configured parameter is less than or equal to 1/6, The number of time-frequency resource groups is less than 3;
  • the user equipment detects feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • a user equipment configured to send an uplink according to the downlink control information received by the user equipment a cyclic shift sequence number of the pilot signal of the uplink data of one of the plurality of subframes of the data, and a cyclic shift sequence number of the pilot signal of the uplink data of each subframe in which the uplink data is transmitted is determined according to a predetermined policy, where each sub- The cyclic shift number of the pilot signal of the uplink data of the frame is different;
  • a second determining unit configured to determine, according to the cyclic shift sequence number of each subframe determined by the first determining unit, and the first channel indication information, resources occupied by the feedback information of the uplink data sent in each subframe;
  • a detecting unit configured to detect feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information determined by the second determining unit.
  • a user equipment is provided, where the user equipment package Includes:
  • An obtaining unit configured to acquire, for each subframe in which the user equipment sends uplink data, subframe number indication information of each subframe;
  • a determining unit configured to determine, according to the subframe number indication information and the second channel indication information acquired by the acquiring unit, resources occupied by feedback information of the uplink data signal sent in each subframe;
  • a detecting unit configured to detect feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information determined by the determining unit.
  • a user equipment is provided, where the user equipment includes:
  • a first determining unit configured to determine, for each subframe in which the user equipment sends uplink data, a number of time-frequency resource groups of a feedback channel that carries feedback information according to a pre-configured parameter and a downlink bandwidth; where the pre-configured parameter Less than or equal to 1/6, the number of time-frequency resource groups is less than 3;
  • a second determining unit which determines resources occupied by feedback information of the uplink data signal sent in each subframe according to the number of time-frequency resource groups determined by the first determining unit and the third channel indication information;
  • a detecting unit configured to detect feedback information corresponding to the uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information determined by the second determining unit.
  • a communication system includes the user equipment according to the foregoing tenth aspect and the base station according to the foregoing fourth aspect; or includes the foregoing eleventh aspect The user equipment and the base station according to the foregoing fifth aspect; or the user equipment according to the twelfth aspect, and the base station according to the sixth aspect.
  • a computer readable program wherein when the program is executed in a base station device, the program causes a computer to perform any of the foregoing first to third aspects in the base station device.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the method of any one of the aforementioned first to third aspects in a base station device Resource mapping method for feedback information.
  • a computer readable program is provided, wherein when the program is executed in a user device, the program causes the computer to perform any of the aforementioned seventh to ninth aspects in the user device The resource mapping method of the feedback information described in the aspect.
  • a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the user equipment in any one of the aforementioned seventh to ninth aspects Resource mapping method for feedback information.
  • the beneficial effects of the embodiments of the present invention are: The method, the device and the system of the embodiments of the present invention save signaling overhead, avoid resource collisions and excessively redundant resources, and improve channel efficiency.
  • FIG. 1 is a flowchart of a resource mapping method of feedback information according to an embodiment of the present invention
  • FIG. 2 is a flow chart of one embodiment of determining resources occupied by each feedback information
  • 3B is a schematic structural diagram of downlink control information
  • 5 is a flow chart of still another embodiment of determining resources occupied by each feedback information
  • FIG. 6 is a schematic structural diagram of a base station device according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of an embodiment of a method for detecting feedback information according to an embodiment of the present invention
  • 8 is a flowchart of another embodiment of a method for detecting feedback information according to an embodiment of the present invention
  • FIG. 9 is a flowchart of still another embodiment of a method for detecting feedback information according to an embodiment of the present invention
  • FIG. 11 is a flowchart of another embodiment of a user equipment according to an embodiment of the present invention.
  • FIG. 12 is a flowchart of still another embodiment of a user equipment according to an embodiment of the present invention. detailed description
  • one control signaling scheduling transmission of multiple data channels is an effective way to save control signaling overhead.
  • one DCI can schedule PDSCH/PUSCH transmission of multiple subframes, or one DCI can schedule PDSCH/PUSCH transmission of multiple base stations. Then, if the ACK/NACK of the scheduled multiple data channels is fed back in the same subframe, how to design a feedback channel carrying ACK/NACK of multiple data channels to avoid ACK/NACK resources of PUSCH in different subframes Collision is a problem worth studying.
  • the foregoing embodiment of the present invention is a PUSCH, and a physical channel for carrying ACK/NACK is a PHICH.
  • the resource mapping method and apparatus for the feedback information are described, but it should be understood that the embodiment of the present invention is not limited thereto.
  • the physical channel used for carrying the ACK/NACK may also be another physical medium that can carry the ACK/NACK of the PUSCH.
  • Channels, such as ePHICH, ePDCCH, etc. therefore, the methods and apparatus provided by the embodiments of the present invention are applicable to other scenarios involving resource mapping of feedback information.
  • Figure 1 is a flow chart of the method, please refer to Figure 1, the method includes:
  • Step 101 Determine, according to the uplink data signal sent by the sending end in different subframes, resources occupied by the feedback information of the uplink data signal sent in each subframe, where the feedback of the uplink data signal sent in different subframes The resources used by the information are different;
  • Step 102 Map resources occupied by the feedback information to objects carrying feedback information in the same subframe.
  • the feedback information of the uplink data signals transmitted in different subframes is transmitted through the physical channel.
  • the feedback information may be a positive acknowledgment information ACK, or may be a qualitative acknowledgment information NACK, depending on whether the uplink data signal is correctly received. For example, if the uplink data signal sent in a certain subframe is correctly received, the corresponding feedback information is ACK, and if the uplink data signal sent in a certain subframe is not correctly received, the corresponding feedback information is received. For NACK.
  • the physical channel carrying the feedback information may be a PHICH, an ePHICH, an ePDCCH, or the like.
  • the feedback information of the uplink data signal sent in different subframes is sent by the physical channel carrying the feedback information, and the resources occupied by the feedback information of the uplink data signal sent in different subframes are different. The problem of resource collision when these feedback information is sent in the same subframe is avoided.
  • the resources occupied by the feedback information of the uplink data signal sent in each subframe may be determined by various means, as long as the feedback information of the uplink data signal sent in different subframes is ensured.
  • the occupied resources are different, and some preferred embodiments are listed below, but the invention is not limited thereto.
  • the embodiment of the present invention further provides a resource mapping method for feedback information
  • FIG. 1 is a flowchart of the method.
  • resources used by the feedback information of the uplink data signal sent in each subframe are determined ( Step 101) can be implemented by the method shown in FIG. 2.
  • the method includes:
  • Step 201 Determine, for each subframe in which the uplink data is sent, a cyclic shift sequence number of the pilot signal of the uplink data according to downlink control information for scheduling the uplink data, where the pilot signal of the uplink data of each subframe is The cyclic displacement numbers are different;
  • Step 202 Determine, according to the cyclic shift sequence number and the first channel indication information, resources occupied by feedback information of the uplink data signal sent in each subframe.
  • the downlink control information is used to schedule the sending of the uplink data signal sent by the sending end in different subframes, and in the embodiment, the downlink control information indicates at least one of the subframes.
  • the cyclic shift of the pilot signal whereby the cyclic shift of each subframe can be determined according to the cyclic shift of the pilot signal of the subframe indicated by the downlink control information; thereby, the cyclic shift sequence number of each subframe can be determined.
  • the CS (cyclic shift) used by the DM-RS of each subframe is different.
  • other subframes are determined according to a predetermined policy. of CS, where the CS of the other subframe is different from the CS of the subframe indicated by the downlink control information.
  • the base station transmits the PUSCH (uplink data signal) in the n+4, n+5..., n+2+N, n+3+N subframe by DCI (downlink control information) in the nth subframe
  • the M bits in the DCI are used to indicate a DM-RS (pilot signal) resource of one of the N subframes, for example, a cyclic shift (CS) indicating a DM-RS in an n+3+N subframe.
  • CS cyclic shift
  • the base station can transmit the PHICH in n+11 subframes.
  • step 202 when the cyclic shift sequence number of each subframe is obtained, it may be determined in each subframe according to the cyclic shift sequence number and other channel indication information (referred to as first channel indication information in this embodiment).
  • first channel indication information the channel indication information
  • the first channel indication information may include a number of time-frequency resource groups (N H ) of the feedback channel carrying the feedback information and an index number of the physical resource block occupied by the uplink data signal (I PRB — RA)
  • N H time-frequency resource groups
  • I PRB — RA index number of the physical resource block occupied by the uplink data signal
  • the first channel indication information may include subframe number indication information of the subframe in addition to the foregoing and I PRB — RA . Determining the feedback of the uplink data signal transmitted in each subframe by using the subframe number indication information and the n DMRS of each subframe obtained in step 201, and other parameters as described above The resources used by the information.
  • the subframe number indication information may be a sequence number of the subframe or may be twice the sequence number of the subframe.
  • the resources occupied by the feedback information of the uplink data signal sent in each subframe may be represented by formula (2):
  • ⁇ ACKiNACK- f (j , n DMRS, ⁇ PRB RA ) ( 2 ) can also be expressed by the formula (3):
  • ⁇ ACKiNACK - f simplification ( ⁇ i, n DMRS, ⁇ PRB RA ) (3)
  • i is the subframe number in the above-mentioned subframe number indication information
  • n DMRS is obtained by the calculation in step 201 of this embodiment.
  • the resources occupied by the feedback information of the uplink data signal sent in each subframe are determined according to the formula (3), resources occupied by the feedback information of different transport blocks of the uplink data signals of different subframes can be simultaneously avoided. No collisions occur. That is, the first transport block in the i-th subframe cannot be adjacent to the ACK/NACK resource of the first transport block in the i+1 (or i-1) subframes to avoid the i+1 ( Or the ACK/NACK resource of the 1st transport block in the i-1 subframes collides with the ACK/NACK resource of the 2nd transport block in the i-th subframe.
  • the resources occupied by the feedback information of the uplink data signal sent by the sending end in different subframes are in the same group of physical resources of the physical channel carrying the feedback information.
  • the same set of physical resources here may be the same downlink control information used to carry feedback information, or may be the same set of time-frequency resources.
  • the ACK/NACK of the PUSCH of different subframes scheduled by the same scheduling information cannot be dispersed in different DCIs. It should be kept in the same DCI.
  • DCI index fun(n DMRS , I PRB ⁇ ) ⁇ [
  • the DCI index indicates the serial number of the DCI, and N indicates the bit of the ACK/NACK that can be carried in the DCI.
  • ⁇ indicates the resource in one DCI.
  • DCI index (I PRB + ⁇ DMR ) mod A
  • the number of time-frequency resource groups of the feedback channel carrying the feedback information may be
  • the value of the pre-configured parameter ranges from less than 1/6, for example, 1 /12, 1/16, etc., and the number of time-frequency resource groups is less than 3.
  • the number of PHICH time-frequency resource groups can be determined according to formula (4):
  • N ⁇ is the downlink bandwidth and Ng is the parameter of the upper layer configuration.
  • Ng is the parameter of the upper layer configuration.
  • the resource occupied by the feedback information of the uplink data signal sent in each subframe is determined by the method in this embodiment, and is mapped to the corresponding physical channel carrying the feedback information, thereby improving resource utilization and avoiding resource waste. At the same time, the problem of resource collision when these feedback information is sent in the same subframe is avoided.
  • FIG. 1 is a flowchart of the method.
  • the resources occupied by the feedback information of the uplink data signal sent in each subframe are determined. It can be implemented by the method shown in FIG. 4. Referring to FIG. 4, the method includes:
  • Step 401 Obtain subframe number indication information of the subframe for each subframe in which uplink data is sent.
  • Step 402 Determine, according to the subframe sequence indication information and the second channel indication information, the identifier sent in the subframe. The resources occupied by the feedback information of the uplink data signal.
  • the resources occupied by the feedback information of the uplink data signal transmitted in each subframe are distinguished only by the subframe number of each subframe.
  • the second channel indication information may include: a number N of time-frequency resource groups of the feedback channel carrying the feedback information; and a cyclic shift sequence number of the pilot signal indicated in the downlink control information of the uplink data signal.
  • DMRS a number of time-frequency resource groups of the feedback channel carrying the feedback information
  • I PRB — RA a cyclic shift sequence number of the pilot signal indicated in the downlink control information of the uplink data signal.
  • the resources occupied by the feedback information of the uplink data signal transmitted in each subframe may also be obtained by formula (2) or formula (3). Instructions.
  • the n DMRS therein can be determined by existing means.
  • the CS (cyclic shift) used by the DM-RS of each subframe is the same.
  • the cyclic shift of the pilot signal of the subframe can determine the cyclic shift of each subframe.
  • the resources occupied by the feedback information of the uplink data signal sent by the sending end in different subframes are in the same group of physical resources of the physical channel carrying the feedback information.
  • the same set of physical resources may be the same downlink control information used to carry feedback information, or may be the same set of time-frequency resources.
  • the number of time-frequency resource groups of the feedback channel carrying the feedback information may be obtained according to the high-level configuration, where the number of the time-frequency resource groups may be determined by using formula (4), where The value of N g can be 1/6, 1/2, 1, 2, or 1/16, 1/12, 1/6, 1/2, 1, 2, or other smaller than The value range of 1/6 is such that the number of time-frequency resource groups is less than 1, to improve resource utilization in the case of large bandwidth.
  • the resource occupied by the feedback information of the uplink data signal sent in each subframe is determined by the method in this embodiment, and is mapped to the corresponding physical channel carrying the feedback information, thereby improving resource utilization and avoiding resource waste. At the same time, the problem of resource collision when these feedback information is sent in the same subframe is avoided.
  • FIG. 1 is a flowchart of the method.
  • the resources occupied by the feedback information of the uplink data signal sent in each subframe are determined. It can be implemented by the method shown in FIG. 5. Referring to FIG. 5, the method includes:
  • Step 501 Determine, for each subframe in which the uplink data is sent, the number of time-frequency resource groups of the feedback channel that carries the feedback information according to the pre-configured parameters and the downlink bandwidth, where the value range of the pre-configured parameter includes less than 1. a value of /6, the number of the time-frequency resource groups is less than 3;
  • Step 502 Determine, according to the number of the time-frequency resource group and the third channel indication information, resources occupied by the feedback information of the uplink data signal sent in the subframe.
  • the upper layer is configured with parameters less than 1/6, and thus the number of time-frequency resource groups is less than 3, which can improve resource utilization in the case of large bandwidth.
  • the third channel indication information may include: scheduling a cyclic shift sequence number n DMRS of the pilot signal indicated in the downlink control information of the uplink data signal ; and a physical resource block occupied by the uplink data signal Index number I PRB — RA .
  • the embodiment of the present invention further provides a base station device, as described in the following embodiment 5.
  • the principle of the base station device is similar to that of the embodiment 1-4, and the specific implementation may refer to the embodiment 1
  • the implementation of the method of 4, the same content will not be repeated.
  • FIG. 6 is a schematic diagram of the base station device.
  • the base station device includes:
  • the determining unit 61 determines, according to the uplink data signal sent by the transmitting end in different subframes, the resources occupied by the feedback information of the uplink data signal sent in each subframe, wherein the uplink data signal sent in different subframes The feedback information occupies different resources;
  • the mapping unit 62 maps the resources occupied by the feedback information to the physical channel carrying the feedback information in the same subframe, and sends the feedback information of the uplink data signal sent in different subframes through the physical channel.
  • the determining unit 61 includes:
  • a first determining module 611 configured to determine, according to the downlink control information for scheduling the uplink data, a cyclic shift sequence number of the pilot signal of the uplink data, for each subframe in which the uplink data is sent;
  • the second determining module 612 determines, according to the cyclic shift sequence number and the first channel indication information, resources occupied by the feedback information of the uplink data signal sent in the subframe.
  • the downlink control information is used to schedule transmission of an uplink data signal sent by the sending end in different subframes, and the downlink control information indicates a cyclic shift of a pilot signal of at least one subframe.
  • the first determining module 611 is configured to determine a cyclic shift of each subframe according to a cyclic shift of a pilot signal of the subframe indicated by the downlink control information, and according to a cyclic shift of each subframe , Determine the cyclic shift number of each sub-frame.
  • the first channel indication information includes: a number of time-frequency resource groups of a feedback channel that carries feedback information.
  • the first channel indication information further includes: a number of time-frequency resource groups of the feedback channel carrying the feedback information; an index number of the physical resource block occupied by the uplink data signal, and a subframe number indication information of the subframe .
  • the subframe number indication information is twice the subframe number or the subframe number.
  • the second determining module 612 is further configured to determine, according to the pre-configured parameter and the downlink bandwidth, the number of time-frequency resource groups of the feedback channel that carries the feedback information, where the pre-configured parameter is less than or equal to 1/6.
  • the number of the time-frequency resource groups is less than 3.
  • the determining unit 61 includes:
  • the obtaining module 613 is configured to acquire, for each subframe in which uplink data is sent, a subframe sequence number indication information of the subframe.
  • the third determining module 614 determines, according to the subframe number indication information and the second channel indication information, resources occupied by the feedback information of the uplink data signal sent in the subframe.
  • the second channel indication information includes: a number of time-frequency resource groups of the feedback channel carrying the feedback information; a cyclic shift sequence number of the pilot signal indicated in the downlink control information of the uplink data signal; and an uplink data signal The index number of the occupied physical resource block.
  • the third determining modulo 614 block is further configured to determine, according to the pre-configured parameter and the downlink bandwidth, the number of time-frequency resource groups of the feedback channel that carries the feedback information, where the pre-configured parameter ranges Containing a value less than 1/6, the number of time-frequency resource groups is less than 3.
  • the subframe number indication information is twice the subframe number or the subframe number.
  • the determining unit 61 includes:
  • the fourth determining module 615 is configured to determine, according to the pre-configured parameters and the downlink bandwidth, the number of time-frequency resource groups of the feedback channel that carries the feedback information, where the pre-configured parameter is less than or equal to 1 for each subframe in which the uplink data is sent. /6, the number of the time-frequency resource group is less than 3;
  • the fifth determining module 616 determines, according to the number of the time-frequency resource group and the third channel indication information, resources occupied by the feedback information of the uplink data signal sent in the subframe.
  • the third channel indication information includes: a cyclic shift sequence number of the pilot signal indicated in the downlink control information for scheduling the uplink data signal; and an index number of the physical resource block occupied by the uplink data signal.
  • the resources occupied by the feedback information of the uplink data signal sent by the sending end in different subframes are in the same group of physical resources of the physical channel carrying the feedback information.
  • the same group of physical resources are the same downlink control information used to carry feedback information, or the same group of time-frequency resources.
  • the embodiment of the present invention further provides a method for detecting feedback information, which is a process on the user equipment side corresponding to the method of Embodiment 2.
  • Figure 7 is a flow chart of the method, please refer to Figure 7, the method includes:
  • Step 701 The user equipment determines, according to the predetermined policy, the uplink data according to the predetermined policy, according to the cyclic shift sequence number of the pilot signal of the uplink data of the one of the plurality of subframes that are used to send the uplink data indicated by the received downlink control information. a cyclic shift sequence number of the pilot signal of the uplink data of each subframe, wherein the cyclic shift sequence number of the pilot signal of the uplink data of each subframe is different;
  • Step 702 The user equipment determines, according to the cyclic shift sequence number of each subframe and the first channel indication information, resources occupied by the feedback information of the uplink data sent in each subframe.
  • Step 703 The user equipment detects feedback information corresponding to uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • the user equipment may send uplink data in multiple subframes according to scheduling of the base station, and in downlink control information used by the base station to schedule uplink data transmission of the multiple subframes. , a cyclic shift of the pilot signal including the uplink data of one of the subframes.
  • the user equipment can determine the resources occupied by the feedback information of the uplink data transmitted in each subframe according to the cyclic shift sequence number of each subframe determined by step 701 and the first channel indication information.
  • the content of the first channel indication information and the manner of determining the resources occupied by the feedback information are described in the second embodiment, and the content thereof is incorporated herein, and details are not described herein.
  • step 703 the resources occupied by the feedback information of the uplink data sent in each subframe are determined, and the feedback information can be detected on the feedback channel corresponding to the resource.
  • Example 7 The embodiment of the present invention further provides a method for detecting feedback information, which is a process on the user equipment side corresponding to the method of Embodiment 3.
  • Figure 8 is a flow chart of the method. Referring to Figure 8, the method includes:
  • Step 801 The user equipment acquires subframe sequence number indication information of each subframe for each subframe in which the uplink data is sent.
  • Step 802 The user equipment determines, according to the subframe number indication information and the second channel indication information, resources occupied by feedback information of an uplink data signal sent in each subframe.
  • Step 803 The user equipment detects feedback information corresponding to uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • the user equipment sends an uplink data signal in multiple subframes according to the scheduling of the base station.
  • the n DMRS is determined by using existing means (that is, the downlink control information for scheduling the transmission of the uplink data signal sent in the multiple subframes is indicated, indicating one of the subframes.
  • DM-RS resource, and the DM-RS resource of other subframes is the same as the DM-S resource indicated in the downlink control information), but the sequence number of the subframe is referenced to distinguish the feedback of the uplink data signal sent in each subframe.
  • the resources occupied by the information, so that the feedback information of the uplink data signals of different subframes does not collide.
  • the subframe number indication information may be a subframe number or a double of the subframe number, and the embodiment does not limit the manner in which the subframe number indication information is acquired.
  • step 802 the user equipment determines, according to the subframe number indication information acquired in step 801 and the second channel indication information, resources occupied by the feedback information of the uplink data signal transmitted in each subframe.
  • the content of the second channel indication information and the manner of determining the resources occupied by the feedback information have been introduced in Embodiment 3, and the content thereof is incorporated herein, and details are not described herein again.
  • step 803 the resources occupied by the feedback information of the uplink data sent in each subframe are determined, and the feedback information can be detected on the feedback channel corresponding to the resource.
  • the embodiment of the present invention further provides a method for detecting feedback information, which is a process on the user equipment side corresponding to the method of Embodiment 4.
  • Figure 9 is a flow chart of the method. Referring to Figure 9, the method includes:
  • Step 901 The user equipment determines, according to the pre-configured parameters and the downlink bandwidth, the number of time-frequency resource groups of the feedback channel that carries the feedback information, where the pre-configured parameters are used. Less than or equal to 1/6, the number of time-frequency resource groups is less than 3;
  • Step 902 The user equipment determines, according to the number of the time-frequency resource group and the third channel indication information, resources occupied by the feedback information of the uplink data signal sent in each subframe.
  • Step 903 The user equipment detects feedback information corresponding to uplink data of each subframe on a feedback channel corresponding to the resource occupied by the feedback information.
  • the user equipment sends an uplink data signal in multiple subframes according to the scheduling of the base station.
  • the n DM Rs is determined by the existing means, and the sequence number of the subframe is not introduced to distinguish the feedback information of the uplink data signal sent in each subframe.
  • the resource is occupied, but the resource utilization is improved by reducing the number of N.
  • step 901 the value range of the pre-configured parameter is increased, so that the value range includes less than
  • a value of 1/6 can reduce the number of N.
  • step 902 the user equipment determines, according to the N ⁇ determined by step 901 and the third channel indication information, resources occupied by the feedback information of the uplink data signal transmitted in each subframe.
  • the content of the third channel indication information and the manner of determining the resources occupied by the feedback information have been introduced in Embodiment 4, and the content thereof is incorporated herein, and details are not described herein again.
  • step 903 the resources occupied by the feedback information of the uplink data sent in each subframe are determined, and the feedback information can be detected on the feedback channel corresponding to the resource.
  • the embodiment of the present invention further provides a user equipment, as described in Embodiment 9 below.
  • the principle of solving the problem is similar to the method of Embodiment 6. Therefore, the specific implementation may refer to the method of Embodiment 6. Implementation, content is the same and will not be repeated.
  • FIG. 10 is a schematic diagram of the composition of the user equipment.
  • the user equipment includes:
  • a first determining unit 1001 according to the cyclic shift sequence number of the pilot signal of the uplink data of the one of the plurality of subframes for transmitting the uplink data, which is indicated by the downlink control information received by the user equipment, according to The predetermined strategy determines a cyclic shift sequence number of the pilot signal of the uplink data of each subframe in which the uplink data is sent, where the cyclic shift sequence number of the pilot signal of the uplink data of each subframe is different;
  • a second determining unit 1002 which is cyclically shifted according to each subframe determined by the first determining unit 1001
  • the sequence number and the first channel indication information determine resources occupied by the feedback information of the uplink data transmitted in each subframe;
  • the detecting unit 1003 detects the feedback information corresponding to the uplink data of each subframe on the feedback channel corresponding to the resource occupied by the feedback information determined by the second determining unit 1002.
  • the embodiment of the present invention further provides a user equipment, as described in Embodiment 10 below. Since the principle of the user equipment is similar to that of Embodiment 7, the specific implementation may refer to the method of Embodiment 7. Implementation, content is the same and will not be repeated.
  • FIG. 11 is a schematic diagram of the composition of the user equipment.
  • the user equipment includes:
  • the obtaining unit 1101 is configured to acquire, for each subframe in which the user equipment sends uplink data, subframe number indication information of each subframe.
  • a determining unit 1102 which determines, according to the subframe number indication information and the second channel indication information acquired by the acquiring unit 1101, resources occupied by the feedback information of the uplink data signal sent in each subframe;
  • the detecting unit 1103 detects the feedback information corresponding to the uplink data of each subframe on the feedback channel corresponding to the resource occupied by the feedback information determined by the determining unit 1102.
  • the embodiment of the present invention further provides a user equipment, as described in Embodiment 11 below.
  • the principle of solving the problem is similar to the method of Embodiment 8. Therefore, the specific implementation may refer to the method of Embodiment 8. Implementation, content is the same and will not be repeated.
  • the embodiment of the invention provides a user equipment. 12 is a schematic diagram of the composition of the user equipment. Referring to FIG. 12, the user equipment includes:
  • a first determining unit 1201 configured, for each subframe in which the user equipment sends uplink data, the number of time-frequency resource groups of the feedback channel carrying the feedback information according to the pre-configured parameters and the downlink bandwidth; wherein the pre-configured The parameter is less than or equal to 1/6, and the number of the time-frequency resource group is less than 3; a second determining unit 1202, which determines, according to the number of time-frequency resource groups determined by the first determining unit 1201 and the third channel indication information, resources occupied by feedback information of the uplink data signal sent in each subframe; 1203.
  • the feedback information corresponding to the uplink data of each subframe is detected on a feedback channel corresponding to the resource occupied by the feedback information determined by the second determining unit 1202.
  • the embodiment of the present invention further provides a communication system, wherein the communication system includes the base station described in Embodiment 5 and the corresponding user equipment described in Embodiment 9 or Embodiment 10 or Embodiment 11.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station device, the program causes the computer to perform the resource mapping method of the feedback information described in Embodiment 1-4 in the base station device .
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the resource mapping method of the feedback information described in Embodiment 1-4 in the base station device.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in the user equipment, the program causes the computer to execute the detection method of the feedback information described in Embodiments 6-8 in the user equipment.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the detection method of the feedback information described in Embodiments 6-8 in the user equipment.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

Abstract

Des modes de réalisation de la présente invention concernent un procédé de mappage de ressources pour des informations de rétroaction, un procédé de détection, un dispositif et un système. Le procédé de mappage de ressources pour des informations de rétroaction comprend : déterminer des ressources occupées par des informations de rétroaction de signaux de données de liaison montante transmis dans toutes les sous-trames en fonction des signaux de données de liaison montante transmis dans différentes sous-trames par une extrémité de transmission, les ressources occupées par les informations de rétroaction des signaux de données de liaison montante transmis dans différentes sous-trames étant différentes; et mapper les ressources occupées par les informations de rétroaction avec un canal physique acheminant les informations de rétroaction dans la même sous-trame, et transmettre les informations de rétroaction des signaux de données de liaison montante transmis dans différentes sous-trames par l'intermédiaire du canal physique. Grâce aux modes de réalisation de la présente invention, le taux d'utilisation des ressources peut être amélioré.
PCT/CN2013/081223 2013-08-09 2013-08-09 Procédé de mappage de ressources pour des informations de rétroaction, procédé de détection, dispositif et système WO2015018086A1 (fr)

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PCT/CN2013/081223 WO2015018086A1 (fr) 2013-08-09 2013-08-09 Procédé de mappage de ressources pour des informations de rétroaction, procédé de détection, dispositif et système
CN201380076707.4A CN105229960A (zh) 2013-08-09 2013-08-09 反馈信息的资源映射方法、检测方法、装置和系统

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PCT/CN2013/081223 WO2015018086A1 (fr) 2013-08-09 2013-08-09 Procédé de mappage de ressources pour des informations de rétroaction, procédé de détection, dispositif et système

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CN101702644A (zh) * 2009-11-02 2010-05-05 中兴通讯股份有限公司 一种物理混合重传指示信道的传输方法和装置
CN102546134A (zh) * 2011-12-29 2012-07-04 电信科学技术研究院 基于增强phich传输反馈信息的方法及装置
US20130107861A1 (en) * 2011-11-01 2013-05-02 Futurewei Technologies, Inc. Systems and Methods for Control Channel Transmission and Reception

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US8861408B2 (en) * 2010-11-02 2014-10-14 Qualcomm Incorporated Hybrid automatic repeat request feedback transmission in a multi component-carrier communication system

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CN101702644A (zh) * 2009-11-02 2010-05-05 中兴通讯股份有限公司 一种物理混合重传指示信道的传输方法和装置
US20130107861A1 (en) * 2011-11-01 2013-05-02 Futurewei Technologies, Inc. Systems and Methods for Control Channel Transmission and Reception
CN102546134A (zh) * 2011-12-29 2012-07-04 电信科学技术研究院 基于增强phich传输反馈信息的方法及装置

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