WO2017015911A1 - 反馈信息的发送装置、接收装置及方法 - Google Patents

反馈信息的发送装置、接收装置及方法 Download PDF

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Publication number
WO2017015911A1
WO2017015911A1 PCT/CN2015/085475 CN2015085475W WO2017015911A1 WO 2017015911 A1 WO2017015911 A1 WO 2017015911A1 CN 2015085475 W CN2015085475 W CN 2015085475W WO 2017015911 A1 WO2017015911 A1 WO 2017015911A1
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WIPO (PCT)
Prior art keywords
identifier
ues
uplink
feedback information
resource
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PCT/CN2015/085475
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English (en)
French (fr)
Inventor
苗金华
张戬
曾清海
权威
李秉肇
唐珣
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19204054.1A priority Critical patent/EP3667974A1/en
Priority to CN201580044976.1A priority patent/CN106576249B/zh
Priority to JP2018504227A priority patent/JP6567760B2/ja
Priority to ES15899263T priority patent/ES2773474T3/es
Priority to PCT/CN2015/085475 priority patent/WO2017015911A1/zh
Priority to CN201911082580.2A priority patent/CN110972308A/zh
Priority to EP15899263.6A priority patent/EP3316611B1/en
Priority to RU2018106997A priority patent/RU2683795C1/ru
Publication of WO2017015911A1 publication Critical patent/WO2017015911A1/zh
Priority to US15/879,251 priority patent/US10652895B2/en
Priority to US16/598,811 priority patent/US20200045688A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1628List acknowledgements, i.e. the acknowledgement message consisting of a list of identifiers, e.g. of sequence numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1671Details of the supervisory signal the supervisory signal being transmitted together with control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092Error control systems characterised by the topology of the transmission link
    • H04L2001/0093Point-to-multipoint
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated

Definitions

  • the present invention relates to the field of communications, and in particular, to a device and method for transmitting feedback information.
  • the eNB After the user equipment (English: User Equipment, UE for short) sends uplink data to the evolved base station (English: Evolved Node B, eNB for short), the eNB usually needs to send feedback information to the UE.
  • LTE Long Term Evolution
  • a UE uses the uplink shared resource A of the Physical Uplink Shared Channel (PUSCH) to send uplink data to the eNB
  • the shared resource A further includes a Demodulation ReFerence Signal (DM-RS) corresponding to the UE; the eNB receives and decodes the uplink data according to the DM-RS corresponding to the UE, and after correctly receiving and decoding the uplink data,
  • the eNB sends the acknowledgement information (English: Acknowledgement, ACK for short) to the UE or sends the non-acknowledgment information to the UE by using the downlink resource B stipulated in the Physical Hybrid ARQ Indicator (PHICH). Nacknowledgement, referred to as NACK).
  • the resource location of the agreed downlink resource is calculated by both the resource location of the uplink shared resource A and the DM-RS.
  • the inventor has found that the prior art has at least the following problem: when multiple UEs adopt the contention-based uplink data transmission mode, the eNB may allocate the same uplink shared resource and DM to multiple UEs. RS.
  • the eNB may allocate the same uplink shared resource and DM to multiple UEs. RS.
  • an embodiment of the present invention provides a sending device, a receiving device, and a method for feedback information.
  • an embodiment of the present invention provides a device for sending feedback information, where the device includes:
  • a processing module configured to allocate the same uplink shared resource to m UEs, where m ⁇ 2;
  • a receiving module configured to receive uplink data on the uplink shared resource, where the uplink data includes an identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is the m UEs. At least one;
  • the processing module is further configured to determine n UEs, where uplink data of the n UEs is successfully received, m ⁇ n ⁇ 1;
  • the processing module is further configured to generate feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs;
  • a sending module configured to send the feedback information by using a medium access control protocol data unit MAC PDU.
  • the uplink data further includes a buffer status information of the UE, where the buffer status information of the UE is used to indicate information about remaining data to be sent by the UE;
  • the processing module is further configured to: decode an identifier of the UE and cache state information of the UE;
  • the processing module is further configured to generate an uplink scheduling grant of the UE, where the uplink scheduling grant of the UE is generated according to the buffer state information of the UE;
  • the processing module is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the UE.
  • the uplink data includes the cache state information of the UE, where n>x ⁇ 1, and the buffer state information of the UE is used to indicate that the remaining to be sent Information of the data;
  • the processing module is further configured to: decode an identifier of the n UEs and the cache state information corresponding to the x UEs;
  • the processing module is further configured to generate an uplink scheduling grant corresponding to each of the x UEs, where the x uplink scheduling grants are generated according to cache state information of the x UEs;
  • the processing module is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the y the uplink data includes the cache state information of the UE, where n ⁇ y ⁇ 1, and the cache state information of the UE is used to indicate that the remaining to be sent Information of the data;
  • the processing module is further configured to decode and obtain an identifier of the n UEs and a pair of the y UEs The cache status information that should be;
  • the processing module is further configured to generate an uplink scheduling grant corresponding to each of the x UEs, where y>x ⁇ 1, where the x uplink scheduling grants refer to currently available uplink resources, and the x uplink scheduling grants Generating according to x cache state information of the UE;
  • the processing module is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the processing module is configured to generate the feedback Information, the feedback information includes a valid bit number, a bit mapping sequence, n pieces of the identifier, and x pieces of the uplink scheduling grant;
  • the effective bit number is used to indicate a valid number of bits of the bit map sequence;
  • the bit map sequence is a fixed bit number bit sequence;
  • the identifier of the i th the UE in the feedback information is corresponding to the uplink scheduling grant with a fixed number of bits
  • the identifier of the i th the UE in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits
  • the first value and the second value are each one of 0 and 1.
  • the processing module is further configured to generate a MAC PDU corresponding to the UE, where the MAC PDU includes the feedback information;
  • the sending module is further configured to perform scrambling of the control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, where the control channel indication information is used to indicate that the MAC PDU is carried. Resource location of the downlink resource;
  • the sending module is further configured to send the control channel indication information to the UE;
  • the sending module is further configured to send the MAC PDU by using a downlink resource indicated by the control channel indication information.
  • the specified identifier is a contention radio network temporary identifier CB-RNTI
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated according to a resource location of the uplink shared resource.
  • the processing module is further configured to allocate a corresponding second random number to the m UEs, where the second random number is used to determine whether the identifier of the UE is not included in the feedback information.
  • the random number used when retransmitting the uplink data on the uplink shared resource that is available.
  • an embodiment of the present invention provides a device for sending feedback information, where the device includes:
  • a processing module configured to allocate the same uplink shared resource and the same demodulation reference signal DM-RS to the m user equipment UEs, m ⁇ 2;
  • a receiving module configured to receive uplink data by using the DM-RS, where the uplink data includes an identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is in the m UEs at least one;
  • the processing module is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processing module is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • a sending module configured to send an acknowledgement information ACK on a resource location of the downlink resource, where the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the processing module is configured to perform a preset operation operation on the identifier of the UE, and use a result of the preset operation operation as an offset corresponding to the UE. the amount.
  • the resource location of the downlink resource is as follows:
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the processing module is configured to calculate an offset of the UE as:
  • an embodiment of the present invention provides a receiving device for feedback information, where the device includes:
  • a processing module configured to determine an uplink shared resource of the user equipment UE
  • a sending module configured to send, by using the uplink shared resource, uplink data, where the uplink data includes an identifier of the UE;
  • a receiving module configured to receive feedback information by using a medium access control protocol data unit MAC PDU, where the feedback information includes n identifiers, wherein different identifiers represent different UEs, and the identifiers represent the n UEs
  • the uplink data is successfully received by the eNB, n ⁇ 1.
  • the processing module is configured to generate uplink data, where the uplink data includes the identifier of the UE and the cache state information; the cache state information of the UE is used to indicate information about remaining data to be sent;
  • the sending module is configured to send the uplink data to the eNB.
  • the processing module is further configured to: read an ith identifier from the feedback information, n ⁇ i ⁇ 1; detect whether the ith identifier is an identifier of the UE; if the ith identifier The identifier of the UE indicates that the eNB successfully receives uplink data of the UE.
  • the processing module is further configured to read, from the feedback information, an i-th identifier and a corresponding one of the Uplink scheduling authorization; detecting whether the ith identifier is an identifier of the UE, n ⁇ i ⁇ 1;
  • the sending module is further configured to: when the ith identifier is an identifier of the UE, send the remaining data to be sent according to the uplink scheduling grant.
  • the processing module is further configured to read a valid bit number and a bit mapping sequence from the feedback information; the valid bit number is used to indicate a valid number of bits of the bit mapping sequence; and the bit mapping sequence is a bit sequence of a fixed number of bits; when the ith bit in the bit map sequence is the first value and is valid, the i th the identifier and the corresponding uplink scheduling grant are read from the feedback information; Detecting whether the ith identifier is an identifier of the UE;
  • the sending module is further configured to: send, in the ith identifier, the identifier of the UE, and send the remaining data to be sent according to the uplink scheduling grant;
  • the processing module is further configured to: when the ith bit in the bit mapping sequence is the second value and is valid, read the ith identifier from the feedback information; and detect the ith If the identifier is the identifier of the UE, if the ith identifier is the identifier of the UE, it indicates that the eNB successfully receives the uplink data of the UE.
  • the sending module is further configured to: when all the identifiers included in the feedback information are not the identifier of the UE, indicate that the eNB does not successfully receive the uplink data of the UE, and retransmit the uplink data.
  • the processing module is configured to randomly generate a first random number when there is a last available uplink shared resource
  • the processing module is configured to read a second random number in the cache, where the second random number is pre-allocated by the eNB, and determine whether a size relationship between the first random number and the second random number is satisfied Preset condition
  • the sending module is configured to resend uplink data on the latest available uplink shared resource when the size relationship between the first random number and the second random number meets a preset condition;
  • the processing module is configured to be dissatisfied with the size relationship between the first random number and the second random number When the condition is preset, the first random number is regenerated.
  • the processing module is configured to randomly generate a random backoff time
  • the sending module is configured to resend uplink data on a last available uplink shared resource after waiting for the random backoff time.
  • the receiving module is configured to receive the control channel indication information
  • the receiving module is configured to descramble the control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a downlink that carries the MAC PDU. Resource location of the resource;
  • the receiving module is configured to receive the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes the feedback information.
  • the specified identifier is a contention-based wireless network temporary identifier CB-RNTI;
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated by a resource location of an uplink shared resource.
  • an embodiment of the present invention provides a receiving device for feedback information, where the device includes:
  • a processing module configured to determine an uplink shared resource and a demodulation reference signal DM-RS of the user equipment UE;
  • a sending module configured to send, by using the uplink shared resource, uplink data, where the uplink data includes an identifier of the UE and the DM-RS;
  • the processing module is configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processing module is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • a receiving module configured to receive an acknowledgement information ACK on a resource location of the downlink resource, where the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the processing module is configured to perform a preset operation operation on the identifier of the UE, and use a result of the preset operation operation as an offset corresponding to the UE. the amount.
  • the resource location of the downlink resource is as follows:
  • n DMRS is used to identify a DM-RS sequence that the physical downlink control channel PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the processing module configured to calculate an offset of the UE, is:
  • an embodiment of the present invention provides a base station, where the base station includes: a processor, a memory, and a transceiver, where the memory is configured to store one or more instructions, where the instruction is configured to be Processor execution;
  • the processor is configured to allocate the same uplink shared resource to the m user equipment UEs, where m ⁇ 2;
  • the processor is further configured to control the transceiver to receive uplink data on the uplink shared resource, where the uplink data includes an identifier of a UE, and identifiers of different UEs represent different UEs, and the identifier of the UE represents The UE is at least one of the m UEs;
  • the processor is further configured to determine n UEs, where uplink data of the n UEs is formed Work reception, m ⁇ n ⁇ 1;
  • the processor is further configured to generate feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs;
  • the processor is further configured to control the transceiver to send the feedback information by using a medium access control protocol data unit MAC PDU.
  • the uplink data further includes buffer status information of the UE, where the buffer status information of the UE is used to indicate information about remaining data to be sent;
  • the processor is configured to decode the identifier of the UE and the cache state information of the UE;
  • the processor is configured to generate an uplink scheduling grant of the UE, where the uplink scheduling grant of the UE is generated according to the buffer state information of the UE;
  • the processor is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the UE.
  • the uplink data includes the cache state information of the UE, where n>x ⁇ 1, and the buffer state information of the UE is used to indicate that the remaining to be sent Information of the data;
  • the processor is configured to decode, obtain an identifier of the n UEs, and the cache state information corresponding to the x UEs;
  • the processor is configured to generate an uplink scheduling grant corresponding to each of the x UEs, where the x uplink scheduling grants are generated according to cache state information of the x UEs;
  • the processor is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the y the uplink data includes the cache state information of the UE, where n ⁇ y ⁇ 1, and the buffer state information of the UE is used to indicate that the remaining to be sent Information of the data;
  • the processor is configured to decode and obtain an identifier of the n UEs and the cache state information corresponding to the y UEs;
  • the processor is configured to generate an uplink scheduling grant corresponding to each of the x UEs, where y>x ⁇ 1, where the x uplink scheduling grants refer to currently available uplink resources; and the x uplink scheduling grants are based on Generated by the cache state information of the x UEs;
  • the processor is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the processor is configured to generate the feedback information, where the feedback information includes a valid bit number, a bit mapping sequence, n pieces of the identifier, and x the uplink scheduling grants;
  • the effective number of bits is used to indicate the effective number of bits of the bit map sequence
  • the bit map sequence is a fixed number of bit sequence
  • the identifier of the i th the UE in the feedback information is corresponding to the uplink scheduling grant with a fixed number of bits
  • the identifier of the i th the UE in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits
  • the first value and the second value are each one of 0 and 1.
  • the processor is configured to generate a MAC PDU corresponding to the UE, where the MAC PDU includes the feedback information;
  • the processor is configured to perform, by using a specified identifier, the control channel indication information, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a downlink that carries the MAC PDU. Resource location of the resource;
  • the processor is configured to control the transceiver to send the control channel indication information to the UE;
  • the processor is configured to control the transceiver to send the MAC PDU by using a downlink resource indicated by the control channel indication information.
  • the specified identifier is a competitive radio network temporary identifier CB-RNTI
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated according to a resource location of the uplink shared resource.
  • the processor is further configured to allocate a corresponding second random number to the m UEs, where the second random number is used to determine whether the latest one is available when the identifier of the UE is not included in the feedback information.
  • the random number used when retransmitting the uplink data on the uplink shared resource.
  • an embodiment of the present invention provides a base station, where the base station includes: a processor, a memory, and a transceiver, where the memory is configured to store one or more instructions, where the instructions are configured to be Processor execution;
  • the processor is configured to allocate the same uplink shared resource and the same demodulation reference signal DM-RS to the m user equipment UEs, m ⁇ 2;
  • the processor is further configured to control the transceiver to receive uplink data by using the DM-RS, where the uplink data includes an identifier of a UE, and identifiers of different UEs represent different UEs, and the UE represented by the identifier of the UE Is at least one of the m UEs;
  • the processor is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processor is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • the processor is further configured to: control, by the transceiver, to send an acknowledgement information ACK on a resource location of a downlink resource, where a resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset .
  • the processor is configured to perform a preset operation operation on the identifier of the UE, and use a result of the preset operation operation as an offset corresponding to the UE.
  • the resource location of the downlink resource is as follows:
  • n DMRS is used to identify a DM-RS sequence that the physical downlink control channel PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the processor is configured to calculate an offset of the UE as:
  • an embodiment of the present invention provides a UE, where the UE includes: a processor, a memory, and a transceiver, where the memory is used to store one or more instructions, and the instruction is configured to be Processor execution;
  • the processor is configured to determine an uplink shared resource of the user equipment UE, where the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, where m ⁇ 2;
  • the processor is further configured to control the transceiver to send uplink data by using the uplink shared resource, where the uplink data includes an identifier of the UE;
  • the processor is further configured to control the transceiver to receive feedback information by using a medium access control protocol data unit MAC PDU, where the feedback information includes n identifiers, wherein different identifiers represent different UEs, The identifier indicates that the uplink data of the n UEs is successfully received by the eNB, and m ⁇ n ⁇ 1.
  • MAC PDU medium access control protocol data unit
  • the processor is configured to generate the uplink data, where the uplink data includes an identifier and a cache state information of the UE, and the cache state information of the UE is used by The information indicating the remaining data to be sent; the processor, configured to control the transceiver to send the uplink data to the eNB.
  • the processor is further configured to: read an ith identifier from the feedback information, where n ⁇ i ⁇ 1;
  • the processor is further configured to detect whether the ith identifier is an identifier of the UE, and if the ith identifier is an identifier of the UE, indicating that the eNB successfully receives uplink data of the UE .
  • the processor is further configured to: read an ith identifier and a corresponding identifier from the feedback information The uplink scheduling authorization;
  • the processor is further configured to detect whether the ith identifier is an identifier of the UE, where n ⁇ i ⁇ 1;
  • the processor is further configured to: when the ith identifier is an identifier of the UE, control the transceiver to send remaining data to be sent according to the uplink scheduling grant.
  • the processor is further configured to: read a valid bit from the feedback information a number and bit map sequence; the valid bit number is used to indicate a significant number of bits of the bit map sequence; the bit map sequence is a fixed number of bit sequence;
  • the processor is further configured to: when the i th bit in the bit mapping sequence is the first value and is valid, read the i th the identifier and the corresponding uplink scheduling grant from the feedback information. ;
  • the processor is further configured to detect whether the ith identifier is an identifier of the UE;
  • the processor is further configured to: when the ith identifier is an identifier of the UE, control, by the transceiver, to send remaining data to be sent according to the uplink scheduling grant;
  • the processor is further configured to: when the ith bit in the bit mapping sequence is the second value and is valid, read the ith identifier from the feedback information;
  • the processor is further configured to detect whether the ith identifier is an identifier of the UE, and if the identifier of the ith UE is an identifier of the UE, indicating that the eNB successfully receives the UE Upstream data.
  • the processor is configured to: when all the identifiers included in the feedback information are not the identifier of the UE, indicate that the eNB does not successfully receive uplink data of the UE, and control the transceiver to resend uplink data. .
  • the processor is configured to randomly generate the first random when there is a last available uplink shared resource number
  • the processor is configured to read a second random number in the cache, where the second random number is pre-allocated by the eNB;
  • the processor is configured to determine whether a size relationship between the first random number and the second random number is Meet the preset conditions;
  • the processor configured to: when the size relationship between the first random number and the second random number meets a preset condition, control the transceiver to resend uplink data on the latest available uplink shared resource. ;
  • the processor is configured to: when the size relationship between the first random number and the second random number does not meet a preset condition, re-execute the randomly generating the first when there is a last available uplink shared resource random number.
  • the processor is configured to randomly generate a random backoff time
  • the processor is configured to, after waiting for the random backoff time, control the transceiver to resend uplink data on a last available uplink shared resource.
  • the processor is configured to control the transceiver to receive the control channel indication information
  • the processor is configured to descramble the control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate that the MAC PDU is carried Resource location of the downlink resource;
  • the processor is configured to control the transceiver to receive the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes the feedback information.
  • the specified identifier is a contention radio network temporary identifier CB-RNTI
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated by a resource location of an uplink shared resource.
  • an embodiment of the present invention provides a UE, where the UE includes: a processor, a memory, and a transceiver, where the memory is used to store one or more instructions, and the instruction is configured to be Processor execution;
  • the processor is configured to determine an uplink shared resource and a demodulation reference signal DM-RS of the user equipment UE, where the uplink shared resource and the DM-RS are allocated by the eNB for the m user equipment UEs.
  • the processor is further configured to control the transceiver to send uplink data by using the uplink shared resource, where the uplink data includes an identifier of the UE and the DM-RS;
  • the processor is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processor is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • the processor is further configured to control the transceiver to receive an acknowledgement information ACK on a resource location of a downlink resource; the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset .
  • the processor is configured to perform a preset operation operation on the identifier of the UE, and use a result of the preset operation operation as an offset corresponding to the UE.
  • the resource location of the downlink resource is as follows:
  • n DMRS is used to identify a DM-RS sequence that the physical downlink control channel PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the processor is configured to calculate an offset of the UE as:
  • an embodiment of the present invention provides a feedback information sending and receiving system, where the feedback information sending and receiving system includes:
  • the eNB includes the first aspect and the feedback information transmitting apparatus provided by any of the various possible implementation manners of the first aspect, or the eNB includes the second aspect and any of various possible implementation manners of the second aspect Provided by the feedback information transmitting apparatus, or the eNB includes the eNB provided by any of the fifth aspect and the various possible implementation manners of the fifth aspect, or the eNB includes the sixth aspect and the sixth aspect An eNB provided by any of the possible implementations.
  • the UE includes the feedback information receiving apparatus provided by any of the third aspect and the various possible implementation manners of the third aspect, or the UE includes any of the fourth aspect and the various possible implementation manners of the fourth aspect Provided by the feedback information receiving apparatus, or the UE includes the UE provided by any of the seventh aspect and the various possible implementation manners of the seventh aspect, or the UE includes the eighth aspect and the eighth aspect A UE as provided in any of the possible implementations.
  • an embodiment of the present invention provides a method for sending feedback information, where the method includes:
  • the uplink data includes an identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs;
  • the feedback information includes n identifiers, and different identifiers represent different UEs;
  • the feedback information is transmitted through a medium access control protocol data unit MAC PDU.
  • the uplink data further includes the buffering state information of the UE, where the buffering state information of the UE is used to indicate information about remaining data to be sent by the UE;
  • the generating feedback information includes:
  • Decoding to obtain an identifier of the UE and cache state information of the UE;
  • the feedback information includes n the identifiers and the uplink scheduling grant corresponding to the UE.
  • the x the uplink data includes the cache state information of the UE, where n>x ⁇ 1, and the buffer state information of the UE is used to indicate that the remaining to be sent Information of the data;
  • the generating feedback information includes:
  • the feedback information includes n the identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the y the uplink data includes the cache state information of the UE, where n ⁇ y ⁇ 1, and the buffer state information of the UE is used to indicate that the remaining to be sent Data information
  • the generating feedback information includes:
  • the x uplink scheduling grants refer to currently available uplink resources, and the x uplink scheduling grants are cached according to x the UEs Status information generated;
  • the feedback information includes n the identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the generating the feedback information includes:
  • the feedback information includes a valid bit number, a bit mapping sequence, n pieces of the identifier, and x pieces of the uplink scheduling grant;
  • the effective number of bits is used to indicate the effective number of bits of the bit map sequence
  • the bit map sequence is a fixed number of bit sequence
  • the identifier of the i th the UE in the feedback information is corresponding to the uplink scheduling grant with a fixed number of bits
  • the identifier of the i th the UE in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits
  • the first value and the second value are each one of 0 and 1.
  • the implementation manner is the fifth possible implementation manner of the tenth aspect, the sending, by using the MAC PDU, the feedback information, including:
  • the control channel indication information is scrambled by the specified identifier, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU;
  • the specified identifier is a competitive radio network temporary identifier CB-RNTI;
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated according to a resource location of the uplink shared resource.
  • a tenth aspect or a first possible embodiment of the tenth aspect or a second possible embodiment of the tenth aspect or a third possible embodiment of the tenth aspect or the fourth possible aspect of the tenth aspect also includes:
  • the UEs Assigning, to the m, the UEs, a corresponding second random number, where the second random number is that the UE does not include the identifier of the UE in the feedback information, and determines whether the uplink is available in the latest one.
  • an embodiment of the present invention provides a method for sending feedback information, where the method includes:
  • the uplink data includes an identifier of the UE, the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs;
  • An acknowledgement information ACK is sent on a resource location of the downlink resource, where the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the calculating an offset of the UE includes:
  • the resource location of the downlink resource is as follows:
  • n DMRS is used to identify a DM-RS sequence that the physical downlink control channel PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the performing an operation operation on the identifier of the UE, and performing the preset operation operation includes:
  • the embodiment of the present invention provides a method for receiving feedback information, where the method includes:
  • the feedback information is received by the medium access control protocol data unit MAC PDU, where the feedback information includes n identifiers, wherein the different identifiers represent different UEs; the identifiers indicate that the uplink data of the n UEs are successfully succeeded by the base station.
  • the sending the uplink data by using the uplink shared resource includes:
  • the uplink data includes the identifier of the UE and the buffer status information; the buffer status information of the UE is used to indicate information about remaining data to be sent;
  • the method further includes:
  • the ith identifier is the identifier of the UE, it indicates that the eNB successfully receives uplink data of the UE.
  • the method further includes:
  • the ith identifier is an identifier of the UE, sending the remaining data to be sent according to the uplink scheduling grant.
  • the method further includes:
  • Reading a valid bit number and a bit map sequence from the feedback information is used to indicate a valid number of bits of the bit map sequence; and the bit map sequence is a fixed bit bit sequence
  • the ith bit in the bit mapping sequence is the first value and is valid
  • the i th the identifier and the corresponding uplink scheduling grant are read from the feedback information; and the ith identifier is detected. Whether it is an identifier of the UE; if the ith identifier is an identifier of the UE, according to the uplink adjustment Authorize to send the remaining data to be sent;
  • the i th the identifier is read from the feedback information; and detecting whether the ith identifier is the UE And if the ith identifier is the identifier of the UE, indicating that the eNB successfully receives uplink data of the UE.
  • the method further includes:
  • the eNB If all the identifiers included in the feedback information are not the identifier of the UE, it indicates that the eNB does not successfully receive the uplink data, and retransmits the uplink data.
  • the resending the uplink data includes:
  • the step of randomly generating the first random number when there is the last available uplink shared resource is re-executed.
  • the resending the uplink data includes:
  • the uplink data is resent on the last available uplink shared resource.
  • the receiving, by using the MAC PDU, the feedback information includes:
  • the control channel indication information is descrambled by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate that the MAC PDU is carried.
  • the MAC PDU Receiving, by the downlink resource indicated by the control channel indication information, the MAC PDU, where the MAC PDU includes the feedback information.
  • the specified identifier is a contention radio network temporary identifier CB-RNTI;
  • the specified identifier is a transmission time interval wireless network identifier TTI-RNTI, and the TTI-RNTI is generated by a resource location of an uplink shared resource.
  • the embodiment of the present invention provides a method for receiving feedback information, where the method includes:
  • the uplink shared resource includes an identifier of the UE and the DM-RS;
  • the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the calculating an offset of the UE includes:
  • the resource location of the downlink resource is as follows:
  • n DMRS is used to identify a DM-RS sequence that the physical downlink control channel PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process is a lowest physical resource block PRB corresponding to a first slot in the PUSCH transmission process.
  • the offset of the UE includes:
  • the eNB allocates the same uplink shared resource to the m UEs, m ⁇ 2; the UE sends the uplink data by using the uplink shared resource; the eNB receives the uplink data on the uplink shared resource, and the uplink data includes the identifier of the UE, and the identifiers of different UEs are different.
  • the UE, the UE represented by the identifier of the UE is at least one of the m UEs; the eNB generates feedback information according to the uplink data of the successfully received n UEs, the feedback information includes n identifiers, m ⁇ n ⁇ 1; the eNB passes the MAC
  • the PDU sends the feedback information; the problem that the eNB cannot correctly send the feedback information to different UEs according to the agreed downlink resources when the multiple UEs use the same uplink shared resource and the DM-RS to send the uplink data in the prior art is reached; It is possible to make each UE clear the effect of whether the uplink data sent by itself is successfully transmitted.
  • FIG. 1 is a block diagram of a feedback information transmitting apparatus according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a feedback information transmitting apparatus according to another embodiment of the present invention.
  • FIG. 3 is a block diagram of a receiving device for feedback information according to an embodiment of the present invention.
  • FIG. 4 is a block diagram of a receiving apparatus for feedback information according to another embodiment of the present invention.
  • FIG. 5 is a block diagram of a receiving apparatus for feedback information according to still another embodiment of the present invention.
  • FIG. 6 is a structural block diagram of an eNB according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of an eNB according to another embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a UE according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of a UE according to another embodiment of the present invention.
  • FIG. 10 is a block diagram of a feedback information transmitting and receiving system according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of a method for sending feedback information according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a format of feedback information provided by an embodiment of the present invention.
  • FIG. 13 is a flowchart of a method for sending feedback information according to another embodiment of the present invention.
  • FIG. 14 is a flowchart of a method for sending feedback information according to another embodiment of the present invention.
  • 15 is a schematic diagram of a format of feedback information provided by another embodiment of the present invention.
  • 16 is a flowchart of a method for transmitting feedback information according to another embodiment of the present invention.
  • 17 is a schematic diagram of a format of feedback information provided by another embodiment of the present invention.
  • FIG. 18 is a flowchart of a method for sending feedback information according to another embodiment of the present invention.
  • FIG. 19 is a flowchart of a method for sending feedback information according to another embodiment of the present invention.
  • 21 is a flowchart of a method for resending uplink data according to another embodiment of the present invention.
  • FIG. 1 shows a block diagram of a feedback information transmitting apparatus according to an embodiment of the present invention.
  • the feedback information transmitting apparatus may be implemented as all or a part of the eNB by software, hardware, or a combination of both.
  • the feedback information transmitting apparatus may include: a processing module 110, a receiving module 120, and a sending module 130.
  • the processing module 110 is configured to allocate the same uplink shared resource to the m UEs, where m ⁇ 2.
  • the receiving module 120 is configured to receive uplink data on the uplink shared resource, where the uplink data includes an identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is m UEs. At least one of them.
  • the processing module 110 is further configured to determine n UEs, where uplink data of the n UEs is successfully received, and m ⁇ n ⁇ 1.
  • the eNB determines the UE that sends the uplink data by successfully receiving the uplink data that includes the UE identifier.
  • the processing module 110 is further configured to generate feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs.
  • the sending module 130 is configured to send the feedback information by using a media access control packet data unit (MAC: PDU).
  • MAC media access control packet data unit
  • the apparatus for transmitting feedback information provides the same uplink shared resource for the m UEs by the eNB, m ⁇ 2; the eNB receives the uplink data on the uplink shared resource, and the uplink data includes the identifier of the UE.
  • the identifiers of the different UEs represent different UEs, and the UEs represented by the identifiers of the UEs are at least one of the m UEs; the eNB generates feedback information according to the uplink data of the successfully received n UEs, and the feedback information includes n identifiers, m ⁇
  • the eNB sends the feedback information through the MAC PDU.
  • the eNB fails to use the same uplink shared resource and the DM-RS to send the uplink data in the prior art.
  • the problem of sending feedback information ; achieving the effect of enabling each UE to know whether the uplink data sent by itself is successfully transmitted.
  • the uplink data further includes buffer status information of the UE, where the buffer status information of the UE is used to indicate information about remaining data to be sent by the UE;
  • the processing module 110 is further configured to decode the identifier of the UE and the cache state information of the UE.
  • the processing module 110 is further configured to generate an uplink scheduling grant of the UE, where the uplink scheduling grant of the UE is generated according to the cache state information of the UE.
  • the processing module 110 is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the UE.
  • the processing module 110 is further configured to: decode an identifier of the n UEs and the cache state information corresponding to the x UEs.
  • the processing module 110 is further configured to generate an uplink scheduling grant corresponding to each of the x UEs, where the x uplink scheduling grants are generated according to the cache state information of the x UEs.
  • the processing module 110 is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the processing module 110 is further configured to: decode an identifier of the n UEs and the cache state information corresponding to the y UEs.
  • the processing module 110 is further configured to generate an uplink scheduling grant corresponding to each of the x UEs, where y>x ⁇ 1, where the x uplink scheduling grants refer to currently available uplink resources, and the x uplink schedulings Authorization is generated based on x cache state information of the UE.
  • the processing module 110 is further configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the processing module 110 is configured to generate the feedback information, where the feedback information includes a valid bit number, a bit mapping sequence, n pieces of the identifier, and x pieces of the uplink scheduling grant.
  • the effective number of bits is used to indicate a significant number of bits of the bit map sequence; the bit map sequence is a fixed number of bit sequence.
  • the i-th identifier in the feedback information is corresponding to the uplink scheduling grant with a fixed number of bits.
  • the ith bit in the bit mapping sequence is the second value and is valid, the ith of the identifiers in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits.
  • the first value and the second value are each one of 0 and 1.
  • the processing module 110 is configured to generate a MAC PDU corresponding to the UE, where the MAC PDU includes the feedback information;
  • the sending module 130 is configured to scramble control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, where the control channel indication information is used to indicate that the MAC PDU is carried. Resource location of the downlink resource;
  • the sending module 130 is configured to send the control channel indication information to the UE;
  • the sending module 130 is configured to send the MAC PDU by using a downlink resource indicated by the control channel indication information.
  • the specified identifier is a contention based radio network temporary identifier (English: Contention based Radio Network Temporary Identifier, abbreviated as: CB-RNTI);
  • the specified identifier is a Transmission Time Interval Radio Network Temporary Identifier (TTI-RNTI), and the TTI-RNTI is generated according to the resource location of the uplink shared resource.
  • TTI-RNTI Transmission Time Interval Radio Network Temporary Identifier
  • the processing module 110 is further configured to allocate a corresponding second random number to the m UEs, where the second random number is used to determine whether the identifier of the UE is not included in the feedback information.
  • FIG. 2 shows a block diagram of a feedback information sending apparatus according to another embodiment of the present invention.
  • the feedback information transmitting apparatus may be implemented as all or a part of the eNB by software, hardware, or a combination of both.
  • the feedback information sending apparatus may include: a processing module 210, a receiving module 220, and a sending module 230.
  • the processing module 210 is configured to allocate the same uplink shared resource and the same DM-RS to the m UEs, where m ⁇ 2.
  • the receiving module 220 is configured to receive the uplink data by using the DM-RS, where the uplink data includes the identifier of the UE, the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs.
  • the processing module 210 is configured to calculate an agreed feedback location, and the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS.
  • the processing module 210 is further configured to calculate an offset of the UE, where the offset of the UE is obtained according to the identifier of the UE.
  • the sending module 230 is configured to send an acknowledgement information ACK on a resource location of the downlink resource, where the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the apparatus for transmitting feedback information allocates the same uplink shared resource and DM-RS to the m UEs through the eNB; the eNB connects to the uplink shared resource through the DM-RS.
  • the eNB calculates the agreed feedback position according to the resource location of the uplink shared resource and the DM-RS, and calculates an offset corresponding to the UE according to the identifier of each UE, and for each UE, the eNB passes the agreed feedback position and The acknowledgment information ACK is sent to the UE on the downlink resource indicated by the combination of the offsets.
  • the eNB when multiple UEs simultaneously send uplink data to the eNB in the same uplink shared resource and the DM-RS, the eNB is caused by the eNB.
  • the problem that the feedback information is correctly sent to each UE by using the agreed downlink resource cannot be used; the effect of enabling each UE to clear whether the uplink data sent by itself is successfully sent is achieved.
  • the processing module 210 is configured to perform a preset operation operation on the identifier of the UE, and use the result of the preset operation operation as the offset corresponding to the UE.
  • the resource location of the downlink resource is as follows:
  • a group number used to identify a group of the downlink resource in the PHICH is used to identify a group of the downlink resource in the PHICH;
  • the DMRS is used to identify the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH for short) indicating to the UE DM-RS sequence;
  • the number of groups used in the PHICH; Is a spreading factor for the PHICH modulation; f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest physical resource block (English: Physical Resource Block, PRB) corresponding to the first time slot in the PUSCH transmission process.
  • the processing module 210 is configured to calculate an offset of the UE as:
  • FIG. 3 shows a block diagram of a receiving device for feedback information provided by an embodiment of the present invention.
  • the feedback information transmitting apparatus may be implemented as all or part of the UE by software, hardware, or a combination of both.
  • the receiving device of the feedback information may include: a processing module 310, a sending module 320, and a receiving module 330.
  • the processing module 310 is configured to determine an uplink shared resource of the UE.
  • the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2.
  • the sending module 320 is configured to send uplink data by using an uplink shared resource, where the uplink data includes an identifier of the UE.
  • the receiving module 330 is configured to receive the feedback information by using the MAC PDU, where the feedback information includes n identifiers, where different identifiers represent different UEs, and the identifiers indicate that the uplink data of the n UEs is successfully received by the eNB, where m ⁇ n ⁇ 1.
  • the apparatus for transmitting feedback information determines the uplink shared resource of the user equipment UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, m ⁇ 2; Sending the uplink data, the uplink data includes the identifier of the UE, and receiving the feedback information by using the medium access control protocol data unit MAC PDU, where the feedback information includes n identifiers, wherein the different identifiers represent different UEs, and the identifiers represent the uplink data of the n UEs.
  • FIG. 4 is a block diagram of a receiving apparatus for feedback information provided by another embodiment of the present invention.
  • the feedback information transmitting apparatus may be implemented as all or part of the UE by software, hardware, or a combination of both.
  • the receiving device of the feedback information may include: a processing module 410, a sending module 420, and a receiving module 430.
  • the processing module 410 is configured to determine an uplink shared resource of the UE, where the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, where m ⁇ 2.
  • the sending module 420 is configured to send uplink data by using an uplink shared resource, where the uplink data includes an identifier of the UE.
  • the receiving module 430 is configured to receive feedback information by using a MAC PDU, where the feedback information includes n labels It is recognized that among the n identifiers, different identifiers represent different UEs; the identifier indicates that uplink data of n UEs is successfully received by the eNB, and m ⁇ n ⁇ 1.
  • the apparatus further includes:
  • the processing module 410 is further configured to generate uplink data, where the uplink data includes the identifier and the buffer status information of the UE, and the buffer status information of the UE is used to indicate information about remaining data to be sent.
  • the sending module 420 is configured to send the uplink data to the eNB.
  • the apparatus further includes;
  • the processing module 410 is further configured to: read the ith identifier and the corresponding uplink scheduling grant from the feedback information, and detect whether the ith identifier is an identifier of the UE, where n ⁇ i ⁇ 1;
  • the sending module 420 is further configured to: when the ith identifier is an identifier of the UE, send the remaining data to be sent according to the uplink scheduling grant.
  • the processing module 410 is further configured to: read a valid bit number and a bit mapping sequence from the feedback information; the valid bit number is used to indicate a valid number of bits of the bit mapping sequence; and the bit mapping sequence a bit sequence of a fixed number of bits; when the ith bit in the bit map sequence is the first value and is valid, the i th the identifier and the corresponding uplink scheduling grant are read from the feedback information. Detecting whether the ith identifier is an identifier of the UE;
  • the sending module 420 is further configured to: send, in the ith identifier, an identifier of the UE, and send the remaining data to be sent according to the uplink scheduling grant;
  • the processing module 410 is further configured to: when the ith bit in the bit mapping sequence is the second value and is valid, read the ith identifier from the feedback information; and detect the Whether the identifier is the identifier of the UE; if the ith identifier is the identifier of the UE, it indicates that the eNB successfully receives the uplink data of the UE.
  • the sending module 420 is further configured to: when all the identifiers included in the feedback information are not the identifier of the UE, indicate that the eNB does not successfully receive the uplink data of the UE, and retransmit the uplink data.
  • the processing module 410 is configured to randomly generate a first random number when there is a last available uplink shared resource
  • the processing module 410 is configured to read a second random number in the cache, where the second random number is Determining, by the eNB, that the size relationship between the first random number and the second random number meets a preset condition;
  • the sending module 420 is configured to resend uplink data on the latest available uplink shared resource when the size relationship between the first random number and the second random number meets a preset condition;
  • the processing module 410 is configured to regenerate the first random number when the size relationship between the first random number and the second random number does not satisfy the preset condition.
  • the processing module 410 is configured to randomly generate a random backoff time
  • the sending module 420 is configured to resend uplink data on a last available uplink shared resource after waiting for the random backoff time.
  • the receiving module 430 is configured to receive the control channel indication information.
  • the receiving module 430 is configured to descramble the control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, where the control channel indication information is used to indicate that the MAC PDU is carried. Resource location of the downlink resource;
  • the receiving module 430 is configured to receive the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes the feedback information.
  • the specified identifier is a CB-RNTI; or a TTI-RNTI, and the TTI-RNTI is generated by a resource location of an uplink shared resource.
  • FIG. 5 shows a block diagram of a receiving device for feedback information provided by an embodiment of the present invention.
  • the receiving device of the feedback information may be implemented as all or part of the UE by software, hardware or a combination of both.
  • the receiving device of the feedback information may include: a processing module 510, a sending module 520, and a receiving module 530.
  • the processing module 510 is configured to determine an uplink shared resource and a DM-RS of the UE.
  • the uplink shared resource and the DM-RS are the same uplink shared resource and DM-RS allocated by the eNB for m UEs, and m ⁇ 2.
  • the sending module 520 is configured to send uplink data by using an uplink shared resource, where the uplink data includes an identifier of the UE and a DM-RS.
  • the processing module 510 is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS.
  • the processing module 510 is further configured to calculate an offset of the UE, where the offset of the UE is obtained according to the identifier of the UE.
  • the receiving module 530 is configured to receive the acknowledgement information ACK on the resource location of the downlink resource; the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the apparatus for transmitting feedback information allocates the same uplink shared resource and DM-RS to the m UEs through the eNB; the eNB receives the uplink data on the uplink shared resource through the DM-RS; The resource location of the shared resource and the DM-RS calculation get the agreed feedback location, and the offset corresponding to the UE is calculated according to the identifier of each UE. For each UE, the eNB adopts a combination of the agreed feedback position and the offset. The acknowledgment information ACK is sent to the UE on the indicated downlink resource.
  • the processing module 510 is further configured to perform a preset operation operation on the identifier of the UE, and use a result of the preset operation operation as an offset corresponding to the UE.
  • the resource location of the downlink resource is as follows:
  • a group number used to identify a group of the downlink resource in the PHICH used to identify a group of the downlink resource in the PHICH;
  • an Orthogonal sequence number used to identify the downlink resource in the PHICH group used to identify the n DMRS is used to identify a DM-RS sequence that the PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process is an index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process.
  • the processing module 510 is configured to calculate an offset of the UE as:
  • FIG. 6 is a structural block diagram of an eNB according to an embodiment of the present invention.
  • the eNB 600 includes a bus 610, and a processor 620, a memory 630, and a transceiver 640 that communicate over the bus 610.
  • the memory 630 is used to store one or more instructions that are configured to be executed by the processor 620. among them:
  • the processor 620 is configured to allocate the same uplink shared resource to the m UEs, where m ⁇ 2.
  • the processor 620 is further configured to control the transceiver 640 to receive uplink data on the uplink shared resource, where the uplink data includes an identifier of the UE, and identifiers of different UEs represent different UEs, and the identifier of the UE represents The UE is at least one of the m UEs.
  • the processor 620 is further configured to determine n UEs, where uplink data of the n UEs is successfully received, and m ⁇ n ⁇ 1.
  • the processor 620 is further configured to generate feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs.
  • the processor 620 is further configured to control the transceiver 640 to send the feedback information by using a medium access control protocol data unit MAC PDU.
  • the processor 620 is configured to decode the identifier of the UE and the cache state information of the UE.
  • the processor 620 is configured to generate an uplink scheduling grant of the UE, where the uplink scheduling grant of the UE is generated according to the cache state information of the UE.
  • the processor 620 is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the UE.
  • the processor 620 is configured to decode and obtain an identifier of the n UEs and the cache state information corresponding to the x UEs.
  • the processor 620 is configured to generate an uplink scheduling authorization corresponding to each of the x UEs.
  • the x uplink scheduling grants are generated according to the cache state information of the x UEs.
  • the processor 620 is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the y the uplink data includes the cache state information of the UE, where n ⁇ y ⁇ 1, and the cache state information of the UE is used to indicate the remaining Information about the data to be sent;
  • the processor 620 is configured to decode and obtain an identifier of the n UEs and the cache state information corresponding to the y UEs.
  • the processor 620 is configured to generate an uplink scheduling grant corresponding to each of the x UEs, where y>x ⁇ 1, where the x uplink scheduling grants refer to currently available uplink resources; and the x uplink scheduling grants Generated according to x cache state information of the UE.
  • the processor 620 is configured to generate the feedback information, where the feedback information includes n identifiers and the uplink scheduling grant corresponding to the x UEs.
  • the processor 620 is configured to generate the feedback information, where the feedback information includes a valid bit number, a bit mapping sequence, n identifiers, and x said uplink scheduling grants;
  • the effective number of bits is used to indicate the effective number of bits of the bit map sequence
  • the bit map sequence is a fixed number of bit sequence
  • the identifier of the i th the UE in the feedback information is corresponding to the uplink scheduling grant with a fixed number of bits
  • the identifier of the i th the UE in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits
  • the first value and the second value are each one of 0 and 1.
  • the processor 620 is configured to generate a MAC PDU corresponding to the UE, where the MAC PDU includes the feedback information;
  • the processor 620 is configured to perform, by using a specified identifier, the control channel indication information, where the specified identifier is an identifier corresponding to the m UEs, where the control channel indication information is used to indicate that the MAC PDU is carried. Resource location of the downlink resource;
  • the processor 620 is configured to control the transceiver 640 to send the control channel indication information to the UE;
  • the processor 620 is configured to control the transceiver 640 to indicate information through the control channel.
  • the indicated downlink resource sends the MAC PDU.
  • the specified identifier is a CB-RNTI, or a TTI-RNTI, and the TTI-RNTI is generated according to a resource location of the uplink shared resource.
  • the processor 620 is further configured to allocate, to the m UEs, respective second random numbers, where the second random number is in the When the identifier of the UE is not included in the feedback information, it is determined whether the random number used when retransmitting the uplink data on the latest available uplink shared resource.
  • FIG. 7 is a structural block diagram of an eNB according to another embodiment of the present invention.
  • the eNB 700 includes a bus 710, and a processor 720, a memory 730, and a transceiver 740 that communicate over the bus 710.
  • the memory 730 is configured to store one or more instructions that are configured to be executed by the processor 720. among them:
  • the processor 720 is configured to allocate the same uplink shared resource and the same DM-RS to the m UEs, where m ⁇ 2;
  • the processor 720 is further configured to control the transceiver 740 to receive uplink data by using the DM-RS, where the uplink data includes an identifier of a UE, and identifiers of different UEs represent different UEs, and identifiers of the UEs are represented by The UE is at least one of the m UEs;
  • the processor 720 is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processor 720 is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • the processor 720 is further configured to control the transceiver 740 to send an acknowledgement information ACK on a resource location of a downlink resource, where a resource location of the downlink resource is a combination of the agreed feedback location and the offset Instructed.
  • the processor 720 is configured to perform a preset operation operation on the identifier of the UE, and use the result of the preset operation operation as the UE The offset.
  • the resource location of the downlink resource is as follows:
  • a group number used to identify a group of the downlink resource in the PHICH used to identify a group of the downlink resource in the PHICH;
  • an Orthogonal sequence number used to identify the downlink resource in the PHICH group used to identify the n DMRS is used to identify a DM-RS sequence that the PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process is an index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process.
  • the processor 720 is configured to calculate an offset of the UE as:
  • FIG. 8 is a structural block diagram of a UE according to an embodiment of the present invention.
  • the UE 800 includes a bus 810, and a processor 820, a memory 830, and a transceiver 840 that communicate over a bus 810.
  • the memory 830 is used to store one or more instructions that are configured to be executed by the processor 820. among them:
  • the processor 820 is configured to determine an uplink shared resource of the UE.
  • the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, where m ⁇ 2;
  • the processor 820 is further configured to control the transceiver 840 to send uplink data by using the uplink shared resource, where the uplink data includes an identifier of the UE;
  • the processor 820 is further configured to control the transceiver 840 to receive feedback information by using a MAC PDU, where the feedback information includes n identifiers, wherein the different identifiers represent different UEs, and the identifiers indicate the The uplink data of the n UEs is successfully received by the eNB, and m ⁇ n ⁇ 1.
  • the processor 820 is configured to generate the uplink data, where the uplink data includes the identifier and the cache state information of the UE, and the cache state information of the UE is used to indicate the remaining data to be sent. information;
  • the processor 820 is configured to control the transceiver 840 to send the uplink data to the eNB.
  • the processor 820 is further configured to read an ith identifier from the feedback information, where n ⁇ i ⁇ 1;
  • the processor 820 is further configured to detect whether the ith identifier is an identifier of the UE, and if the ith identifier is an identifier of the UE, indicating that the eNB successfully receives an uplink of the UE data.
  • the processor 820 is further configured to: read the ith identifier and the corresponding uplink scheduling grant from the feedback information;
  • the processor 820 is further configured to detect whether the ith identifier is an identifier of the UE, where n ⁇ i ⁇ 1;
  • the processor 820 is further configured to: when the ith identifier is an identifier of the UE, control the transceiver 840 to send remaining data to be sent according to the uplink scheduling grant.
  • the processor 820 is further configured to: read a valid bit number and a bit mapping sequence from the feedback information; the valid bit number is used to indicate a valid number of bits of the bit mapping sequence; and the bit mapping sequence Is a bit sequence of fixed number of bits;
  • the processor 820 is further configured to: when the ith bit in the bit mapping sequence is the first value and is valid, read the i th the identifier and the corresponding uplink scheduling from the feedback information.
  • the processor 820 is further configured to detect whether the ith identifier is an identifier of the UE.
  • the processor 820 is further configured to: when the ith identifier is an identifier of the UE, control the transceiver 840 to send remaining data to be sent according to the uplink scheduling grant;
  • the processor 820 is further configured to: when the ith bit in the bit mapping sequence is the second value and is valid, read the ith identifier from the feedback information;
  • the processor 820 is further configured to detect whether the ith identifier is an identifier of the UE.
  • the identifier of the i th UE is the identifier of the UE, it indicates that the eNB successfully receives uplink data of the UE.
  • the processor 820 is configured to indicate that the eNB does not successfully receive when all the identifiers included in the feedback information are not the identifier of the UE.
  • the uplink data of the UE controls the transceiver 840 to resend uplink data.
  • the processor 820 is configured to randomly generate a first random number when there is a last available uplink shared resource
  • the processor 820 is configured to read a second random number in the cache, where the second random number is pre-allocated by the eNB;
  • the processor 820 is configured to determine whether a size relationship between the first random number and the second random number meets a preset condition
  • the processor 820 is configured to control the transceiver 840 to resend on the latest available uplink shared resource when the size relationship between the first random number and the second random number meets a preset condition.
  • the processor 820 is configured to: when the size relationship between the first random number and the second random number does not meet a preset condition, re-execute the random generation when the last available uplink shared resource exists A random number.
  • the processor 820 is configured to randomly generate a random backoff time
  • the processor 820 is configured to control the transceiver 840 to resend uplink data on a last available uplink shared resource after waiting for the random backoff time.
  • the processor 820 is configured to control the transceiver 840 to receive the control channel indication information.
  • the processor 820 is configured to descramble the control channel indication information by using a specified identifier, where the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate that the MAC is carried. Resource location of the downlink resource of the PDU;
  • the processor 820 is configured to control the transceiver 840 to receive the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes the feedback information.
  • the specified identifier is a CB-RNTI; or a TTI-RNTI, and the TTI-RNTI is generated by a resource location of an uplink shared resource.
  • FIG. 9 is a structural block diagram of a UE according to another embodiment of the present invention.
  • the UE 900 includes a bus 910, and a processor 920, a memory 930, and a transceiver 940 that communicate over a bus 910.
  • the memory 930 is used to store one or more instructions that are configured to be executed by the processor 920. among them:
  • the processor 920 is configured to determine an uplink shared resource and a DM-RS of the UE.
  • the uplink sharing The resource and the DM-RS are the same uplink shared resource and DM-RS allocated by the eNB for the m user equipment UEs, m ⁇ 2;
  • the processor 920 is further configured to control the transceiver 940 to send uplink data by using the uplink shared resource, where the uplink data includes an identifier of the UE and the DM-RS;
  • the processor 920 is further configured to calculate an agreed feedback location, where the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS;
  • the processor 920 is further configured to calculate an offset of the UE, where an offset of the UE is obtained according to an identifier of the UE;
  • the processor 920 is further configured to control the transceiver 940 to receive an acknowledgement information ACK on a resource location of a downlink resource; the resource location of the downlink resource is a combination of the agreed feedback location and the offset Instructed.
  • the processor 920 is configured to:
  • the resource location of the downlink resource is as follows:
  • a group number used to identify a group of the downlink resource in the PHICH used to identify a group of the downlink resource in the PHICH;
  • an Orthogonal sequence number used to identify the downlink resource in the PHICH group used to identify the n DMRS is used to identify a DM-RS sequence that the PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process is an index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process.
  • the processor 920 is configured to calculate The offset of the UE is:
  • FIG. 10 illustrates a feedback information transmitting and receiving system according to an embodiment of the present invention.
  • the feedback information sending and receiving system includes: an eNB 1010 and a UE 1020;
  • the eNB 1010 includes the feedback information transmitting apparatus provided by any of the embodiment of FIG. 1 and the embodiment of FIG. 2, or the eNB 1010 includes the eNB provided by any of the embodiment of FIG. 6 and the embodiment of FIG.
  • the UE 1020 includes the feedback information receiving apparatus provided by any of the embodiment of FIG. 3, the embodiment of FIG. 4, and the embodiment of FIG. 5.
  • the UE 1020 includes the UE provided by any of the embodiment of FIG. 8 and the embodiment of FIG.
  • FIG. 11 is a flowchart of a method for transmitting feedback information provided by an embodiment of the present invention.
  • the method for sending the feedback information includes:
  • step 1101 the eNB allocates the same uplink shared resource to m UEs, and m ⁇ 2.
  • an uplink shared resource refers to a time-frequency resource on a PUSCH channel. Multiple UEs can share the same uplink shared resource to transmit data.
  • the eNB allocates the same DM-RS to m UEs while allocating the same uplink shared resource to the m UEs.
  • the present embodiment can be implemented normally. Therefore, in this embodiment, whether the m UEs use the same DR-MS is not limited.
  • the UE determines the uplink shared resource of the UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2. Specifically, the UE receives the configuration information about the uplink shared resource sent by the eNB, and determines the uplink shared resource of the UE according to the received configuration information.
  • the UE may determine the uplink shared resource according to the configuration mode agreed in advance.
  • Step 1102 The UE sends uplink data by using an uplink shared resource allocated by the eNB, where the uplink data includes an identifier of the UE.
  • the eNB allocates the same uplink shared resource to 10 UEs.
  • the 10 UEs if three UEs need to transmit their respective uplink data, the three UEs that need to send uplink data simultaneously send their respective uplink data to the eNB on the same uplink shared resource.
  • the uplink data sent by the three UEs includes the identifier of the corresponding UE. That is, the uplink data of each UE includes: an identifier of the UE and data information sent by the UE. UE will still be on this
  • the DM-RS corresponding to the UE is sent in the row shared resource, so that the eNB decodes the uplink data.
  • Step 1103 The eNB receives the uplink data on the uplink shared resource, where the uplink data includes the identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs.
  • the eNB performs channel estimation by using the DM-RS in the uplink shared resource, and decodes the uplink data from the uplink shared resource according to the result of the channel estimation.
  • the uplink data includes the identifier of the UE and the data information sent by the UE.
  • the C-RNTI is identified as a UE.
  • Step 1104 determining n UEs, wherein uplink data of n UEs are successfully received, m ⁇ n ⁇ 1.
  • the eNB determines, according to the successfully received uplink data that includes the identifier of the UE, the UE that sends the uplink data.
  • Step 1105 The eNB generates feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs.
  • the eNB generates feedback information including the corresponding identifier according to the successfully received uplink data including the identifier of the UE.
  • step 1106 the eNB sends feedback information through the MAC PDU.
  • Step 1107 The UE receives the feedback information by using the MAC PDU.
  • the feedback information includes n identifiers.
  • n identifiers different identifiers represent different UEs.
  • the identifier indicates that the uplink data of the n UEs is successfully received by the base station, and m ⁇ n ⁇ 1.
  • the eNB allocates the same uplink shared resource to the m UEs, m ⁇ 2; the eNB receives the uplink data of the at least one UE sent by the UE on the uplink shared resource,
  • the uplink data of each UE includes the identifier of the corresponding UE, and m ⁇ n ⁇ 1; the eNB generates feedback information according to the successfully received n uplink data, where the feedback information includes n identifiers; the eNB sends feedback information through the MAC PDU;
  • the problem that the eNB cannot correctly send the feedback information to different UEs according to the agreed downlink resources when the multiple UEs use the same uplink shared resource and the DM-RS to send the uplink data is solved in the prior art; Both can be clear about whether the uplink data sent by themselves is sent successfully.
  • step of the eNB side in the embodiment of FIG. 11 can be separately implemented as a method for transmitting feedback information on the eNB side
  • step on the UE side can be separately implemented as a method of receiving feedback information on the UE side.
  • FIG. Figure 12 is a diagram containing n identifiers Feedback information.
  • the C-RNTI i represents the i-th identifier in the feedback information
  • each C-RNTI occupies 16 bits
  • each byte Oct is 8 bits, so each identified C in the feedback information -RNTI occupies two bytes.
  • FIG. 13 is a flowchart of a method for transmitting feedback information provided by an embodiment of the present invention.
  • the method for sending the feedback information includes:
  • step 1301 the eNB allocates the same uplink shared resource to m UEs, and m ⁇ 2.
  • the UE determines the uplink shared resource of the UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2.
  • Step 1302 The UE sends uplink data by using an uplink shared resource allocated by the eNB, where the uplink data includes an identifier of the UE.
  • the eNB receives the uplink data on the uplink shared resource, where the uplink data includes the identifier of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs.
  • Step 1304 determining n UEs, wherein uplink data of n UEs is successfully received, m ⁇ n ⁇ 1.
  • step 1305 the eNB generates feedback information, where the feedback information includes n identifiers, and different identifiers represent different UEs.
  • Steps 1301 to 1305 are the same as steps 1101 to 1105, and are shown with reference to the embodiment of FIG.
  • Step 1306 the eNB generates a MAC PDU corresponding to the UE, where the MAC PDU includes feedback information.
  • the eNB generates feedback information including n identifiers according to the successfully received n uplink data, and the eNB generates a MAC PDU corresponding to the UE by using the n identified feedback information, where the MAC PDU includes feedback information.
  • Step 1307 the eNB scrambles the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the specified identifier is an identifier corresponding to m UEs. That is, the designated identifier is an identifier shared by m UEs.
  • the specified identifier is: CB-RNTI or TTI-RNTI. among them:
  • the CB-RNTI is an identifier pre-allocated by the eNB in the contention-based uplink data transmission method.
  • the TTI-RNTI is related to the resource location of the uplink shared resource in step 1302.
  • the TTI-RNTI a+suf_id+b*feq_id
  • the suf_id is the subframe number corresponding to the uplink shared resource
  • the control channel indication information is used to indicate a resource location of a downlink resource in the PUSCH channel, where the downlink resource indicated by the control channel indication information is used to carry a MAC PDU.
  • the eNB first transmits control channel indication information through the PDCCH. That is, the eNB scrambles the control channel indication information of the MAC PDU by specifying the identifier, and sends the scrambled control channel indication information to the UE through the PDCCH channel.
  • the UE receives control channel indication information sent by the eNB.
  • Step 1309 The UE performs descrambling on the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the UE obtains the resource location of the downlink resource indicated by the control channel indication information by descrambling the PDCCH channel by specifying the identifier. Only the UE that has the specified identifier can receive the control channel indication information.
  • step 1310 the eNB sends the MAC PDU by using the downlink resource indicated by the control channel indication information.
  • the eNB transmits the MAC PDU by using the downlink resource indicated by the control channel indication information in the PDCCH.
  • Step 1311 The UE receives the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes feedback information.
  • the UE decodes the feedback information from the MAC PDU.
  • Step 1312 The UE reads the ith identifier from the feedback information, where n ⁇ i ⁇ 1, and detects whether the ith identifier is the identifier of the UE.
  • the UE reads the ith identifier from the feedback information, n ⁇ i ⁇ 1.
  • the UE reads the fixed length information from the feedback information each time, and regards the fixed length information as an identifier.
  • the fixed length is 16 bits.
  • the UE detects whether the ith identifier is the identifier of the UE.
  • step 1313 If the ith identifier is the identifier of the UE, go to step 1313; if the ith identifier is not the identifier of the UE, go to step 1314.
  • Step 1313 If the ith identifier is the identifier of the UE, it indicates that the eNB successfully receives the uplink data.
  • the UE loops through step 1312 until all the flags in the feedback information have been read.
  • Step 1315 If all the identifiers included in the feedback information are not the identifier of the UE, the eNB does not successfully receive the uplink data, and retransmits the uplink data.
  • the eNB allocates the same uplink shared resource to the m UEs, m ⁇ 2; the eNB receives the uplink data on the uplink shared resource, and the uplink data of each UE includes The eNB generates the feedback information according to the successfully received n uplink data, where the feedback information includes n identifiers, m ⁇ n ⁇ 1; the eNB sends the feedback information through the MAC PDU; when the UE does not in the feedback information When the identifier of the corresponding UE is found, the eNB does not successfully receive the uplink data, and retransmits the uplink data by using different methods.
  • step of the eNB side in the embodiment of FIG. 13 can be separately implemented as a method for transmitting feedback information on the eNB side
  • step on the UE side can be separately implemented as a method of receiving feedback information on the UE side.
  • the UE usually has the remaining data to be sent.
  • the eNB may also send an uplink scheduling grant (English: Up Link Grant, UL UL for short) to the UE in the feedback information.
  • the uplink scheduling grant is used to instruct the UE to send the remaining data to be sent in a scheduled uplink data transmission manner. Please refer to the following example:
  • FIG. 14 is a flowchart of an information feedback method according to another embodiment of the present invention.
  • the information feedback method includes:
  • step 1401 the eNB allocates the same uplink shared resource to m UEs, and m ⁇ 2.
  • the UE determines the uplink shared resource of the UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2.
  • Step 1402 The UE sends uplink data by using an uplink shared resource allocated by the eNB, where the uplink data includes an identifier of the UE.
  • the uplink data sent by each UE includes not only the identifier of the UE but also the buffer status information of the UE, and the buffer status information is used to indicate information about remaining data to be transmitted.
  • the eNB allocates the same uplink shared resource to the 10 UEs. If there are 6 UEs that need to send uplink data at the same time, the 6 UEs that need to send uplink data still have the remaining data to be sent. For the information, the six UEs that need to send the uplink data simultaneously send the uplink data to the eNB on the uplink shared resource, where the uplink data includes: the identifier of the UE, the buffer status information of the UE, and the data information that the UE sends this time.
  • the buffer status information of the UE includes the remaining amount of data to be sent, such as a data amount of 1 bit, or only the remaining data to be sent in the buffer area, and does not indicate the size of the data to be sent.
  • the eNB receives the uplink data on the uplink shared resource, where the uplink data includes the identifier of the UE and the buffer status information of the UE, and the identifiers of the different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs.
  • the buffering status information of the UE is used to indicate information about remaining data to be sent by the UE.
  • the eNB performs channel estimation by using the DM-RS in the uplink shared resource, and decodes the uplink data from the uplink shared resource according to the result of the channel estimation, where the uplink data includes: the identifier of the UE, the buffer status information of the UE, and the current transmission by the UE. Data information.
  • Step 1404 the eNB decodes the identifier of the UE and the cache state information of the UE.
  • the eNB decodes and obtains the identifier of the UE included in the uplink data and the buffer state information of the UE according to the successfully received uplink data.
  • Step 1405 The eNB generates an uplink scheduling grant of the UE, and the uplink scheduling grant of the UE is generated according to the buffer state information of the UE.
  • the eNB For each successfully received uplink data, the eNB also generates an uplink scheduling grant, that is, a UL Grant, for the corresponding UE according to the buffer status information included in the uplink data.
  • an uplink scheduling grant that is, a UL Grant
  • the UL Grant includes at least: a resource location of an uplink transmission resource allocated for the UE.
  • Optional includes: Modulation and Coding Scheme (English: Modulation and Coding Scheme, MCS), repetition period, and so on.
  • MCS is used to indicate which modulation coding mode the UE uses when transmitting uplink data.
  • the repetition period refers to the repeated occurrence period of the uplink transmission resource allocated by the eNB to the UE when the uplink transmission scheduling uses semi-persistent scheduling.
  • Semi-persistent scheduling is a scheduling mode in which an eNB allocates uplink transmission resources that occur periodically to a UE at one time.
  • each UL Grant may be different, and the number of bits occupied by each UL Grant may be fixed, for example, each UL Grant occupies 20 bits.
  • each UL Grant can be selected to be non-fixed, such as occupied by each UL Grant. 10 bits or 20 bits, etc. In this embodiment, each UL Grant occupies 20 bits for illustration. That is, the bit size occupied by each UL Grant in this embodiment is not limited.
  • Step 1406 The eNB generates feedback information, where the feedback information includes n identifiers and an uplink scheduling grant corresponding to the identifier.
  • the identifier and the UL Grant corresponding to the identifier appear in pairs.
  • the identifier is preceded, and the UL Grant corresponding to the identifier immediately follows the identifier.
  • FIG. 15 is feedback information including n identifiers and a UL Grant corresponding to each identifier.
  • the C-RNTI i represents the i-th identifier in the feedback information
  • each C-RNTI occupies 16 bits
  • each byte Oct is 8 bits, so each identifier in the feedback information C-RNTI occupies two bytes.
  • each identified C-RNTI there is also a UL Grant corresponding to the identifier, and each UL Grant occupies 20 bits. Among them, Padding is a padding bit.
  • Step 1407 The eNB generates a MAC PDU corresponding to the UE, where the MAC PDU includes feedback information.
  • the eNB generates feedback information including n identifiers according to the successfully received n uplink data, and the eNB generates a MAC PDU corresponding to the UE by using the n identified feedback information, where the MAC PDU includes feedback information.
  • Step 1408 the eNB scrambles the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the specified identifier is an identifier corresponding to m UEs. That is, the designated identifier is an identifier shared by m UEs.
  • the specified identifier is: CB-RNTI or TTI-RNTI. among them:
  • the CB-RNTI is an identifier pre-allocated by the eNB in the contention-based uplink data transmission method.
  • the TTI-RNTI is related to the resource location of the uplink shared resource in step 1402.
  • the TTI-RNTI a+suf_id+b*feq_id
  • the suf_id is the subframe number corresponding to the uplink shared resource
  • the control channel indication information is used to indicate a resource location of a downlink resource in the PUSCH channel, where the downlink resource indicated by the control channel indication information is used to carry a MAC PDU.
  • the eNB first sends control channel indication information to the UE through the PDCCH channel. That is, the eNB specifies the identity to the MAC PDU by The control channel indication information is scrambled, and the scrambled control channel indication information is sent to the UE through the PDCCH channel.
  • Step 1409 the eNB sends control channel indication information to the UE.
  • the UE receives control channel indication information sent by the eNB.
  • Step 1410 The UE performs descrambling on the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the UE obtains the resource location of the downlink resource indicated by the control channel indication information by descrambling the PDCCH on the PDCCH. Only the UE that has the specified identifier can receive the control channel indication information.
  • Step 1411 The eNB sends the MAC PDU by using the downlink resource indicated by the control channel indication information.
  • the eNB transmits the MAC PDU by using the downlink resource indicated by the control channel indication information in the PDCCH.
  • Step 1412 The UE receives the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes feedback information.
  • the UE decodes the feedback information from the MAC PDU.
  • the format of the feedback information is as shown in FIG. 15.
  • Step 1413 The UE reads the ith identifier and the corresponding uplink scheduling grant from the feedback information, and detects whether the ith identifier is the identifier of the UE.
  • the UE reads the i-th identifier and the UL Grant corresponding to the i-th identifier from the feedback information, n ⁇ i ⁇ 1.
  • the fixed-length information is considered to be "one identity + one UL Grant.
  • the UE detects whether the identity of the i th UE is the identity of the UE.
  • step 1414 If the ith identifier is the identifier of the UE, go to step 1414; if the ith identifier is not the identifier of the UE, go to step 1415.
  • Step 1414 If the ith identifier is the identifier of the UE, the eNB successfully receives the uplink data, and the UE sends the remaining data to be sent according to the uplink scheduling grant.
  • the UL Grant corresponding to the ith identifier is the UL Grant corresponding to the UE.
  • the UE sends the remaining data to be sent in the buffer to the eNB according to the indication of the UL Grant, using the scheduling-based uplink data transmission mode.
  • the UE loops through step 1412 until all the identifiers and UL Grants in the feedback information are completely read.
  • Step 1416 If all the identifiers included in the feedback information are not the identifier of the UE, the eNB does not successfully receive the uplink data, and retransmits the uplink data.
  • the UE If the UE retransmits the uplink data to the eNB for more than N times on the uplink shared resource, the UE will not use the uplink shared resource to send the uplink data, and may optionally transmit the uplink data according to a scheduling method.
  • the method for transmitting feedback information further includes: by using the cache state information in the uplink data sent by the UE, the eNB generates a corresponding UL Grant according to the cache state information, and The information is sent to the UE in the feedback information, so that the feedback information is not only used for the feedback of whether the uplink data is successfully received, but also the scheduling of the uplink data transmission of the UE is implemented. Thereby, the signaling expenditure on the eNB side is reduced, and the uplink data transmission speed on the UE side is also accelerated.
  • step of the eNB side in the embodiment of FIG. 14 can be separately implemented as a method for transmitting feedback information on the eNB side
  • step on the UE side can be separately implemented as a method of receiving feedback information on the UE side.
  • the uplink data sent by each UE includes "identity of the UE + cache status information" for illustration.
  • the uplink data sent by the UE does not include the cache state information. That is, in the case that the eNB receives the uplink data of the UE, there may be a case where a part of the uplink data only includes the identifier of the UE, and another part of the uplink data includes the “identity of the UE+cache status information”. For this situation, please refer to the following examples:
  • FIG. 16 is a flowchart of a method for transmitting feedback information according to another embodiment of the present invention.
  • the method for sending the feedback information includes:
  • step 1601 the eNB allocates the same uplink shared resource to the m UEs, and m ⁇ 2.
  • the UE determines the uplink shared resource of the UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2.
  • Step 1601 is the same as step 1101, with reference to the embodiment of FIG.
  • Step 1602 The UE sends the uplink data by using the uplink shared resource allocated by the eNB, where the uplink data includes the identifier of the UE, or the uplink data includes the identifier of the UE and the cache state information of the UE.
  • the uplink data sent by the UE includes: the identifier of the UE and the data information sent this time.
  • the uplink data sent by the UE includes: the identifier of the UE, the buffer status information of the UE, and the data information sent this time.
  • the eNB allocates the same uplink shared resource to the 10 UEs. If there are 6 UEs that need to send uplink data at the same time, and 3 of the 6 UEs have remaining data to be sent, Then, the 6 UEs simultaneously send uplink data to the eNB on the uplink shared resource.
  • the uplink data sent by the three UEs includes: the identifier of the UE and the data information sent by the UE.
  • the uplink data sent by the other three UEs includes: the identifier of the UE, the buffer status information of the UE, and the data information sent by the UE.
  • Step 1603 the eNB receives the uplink data on the uplink shared resource, where the n uplink data includes the identifier of the n UEs and the buffer state information corresponding to the x UEs, where n ⁇ x ⁇ 1, and the identifiers of different UEs represent different UEs.
  • the UE represented by the identifier of the UE is at least one of the m UEs, and the buffering state information of the UE is used to indicate information about remaining data to be sent by the UE.
  • the eNB performs channel estimation by using the DM-RS in the uplink shared resource, and decodes the uplink data of the UE from the uplink shared resource according to the result of the channel estimation.
  • Step 1604 the eNB decodes the identifiers of the n UEs and the cache state information corresponding to the x UEs.
  • the uplink data includes: the identifier of the UE, the buffer status information of the UE, and the data information that the UE sends the data.
  • the uplink data includes: the identifier of the UE and the data information sent by the UE.
  • the n uplink data successfully received by the eNB includes the identifiers of the n UEs and the buffer status information corresponding to the x UEs.
  • Step 1605 The eNB generates an uplink scheduling grant corresponding to the x UEs, and the x uplink scheduling grants are generated according to the cache state information of the x UEs.
  • the eNB also generates an uplink scheduling grant, that is, a UL Grant, for the corresponding UE according to the buffer status information included in the uplink data.
  • the UL Grant includes at least: a resource location of an uplink transmission resource allocated for the UE.
  • Optional includes: MCS, repeat period, etc.
  • the MCS is used to indicate which modulation coding mode the UE uses when transmitting uplink data.
  • the repetition period refers to the repeated occurrence period of the uplink transmission resource allocated by the eNB to the UE when the uplink transmission scheduling uses semi-persistent scheduling.
  • Semi-persistent scheduling is a scheduling mode in which an eNB allocates uplink transmission resources that occur periodically to a UE at one time.
  • each UL Grant occupies 20 bits for illustration.
  • Step 1606 the eNB generates feedback information, where the feedback information includes a valid bit number, a bit mapping sequence, n identifiers, and x uplink scheduling grants.
  • the effective bit number refers to the effective number of bits of the bit map sequence
  • the bit map sequence refers to the bit sequence of a fixed number of bits.
  • the value in the bit map sequence includes: a first value and a second value, wherein the first value and the second value are each one of 0 or 1.
  • the ith bit in the bit mapping sequence When the ith bit in the bit mapping sequence is the first value and is valid, it represents the ith identifier in the feedback information and corresponds to the uplink scheduling grant with a fixed number of bits.
  • the ith flag in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits.
  • FIG. 1 A schematic diagram of the format of the feedback information in this embodiment is shown in FIG.
  • R is a format representative bit that occupies 1 bit and is used to indicate reserved bits.
  • the UE Number is the number of significant bits.
  • the UE number occupies 3 bits and is used to identify the number of significant digits from left to right in the bit mapping sequence ACK or Grant.
  • only the number of bits occupied by the UE number is used for example.
  • the number of bits occupied by the UE number is not limited.
  • the bit mapping sequence ACK or Grant always occupies 8 bits, but the 8 bits are not always valid, and are related to whether there is a corresponding UL Grant after the i-th flag in the feedback information.
  • the ith flag in the feedback information corresponds to a UL Grant with a fixed number of bits (20 bits).
  • the ith flag in the feedback information does not correspond to the UL Grant with a fixed number of bits. That is, it is just an ACK message and does not contain a UL Grant.
  • the identifier is represented by a C-RNTI, where the C-RNTI i represents an ith identifier in the feedback information, and each C-RNTI occupies 16 bits, and each byte Oct is 8 bits, so each identifier in the feedback information C-RNTI occupies two bytes.
  • Step 1607 The eNB generates a MAC PDU corresponding to the UE, where the MAC PDU includes feedback information.
  • the eNB generates feedback information including n identifiers and UL Grants corresponding to the x UEs according to the successfully received n uplink data, and the eNB generates corresponding MACs by using the n identified feedback information.
  • PDU this MAC PDU contains feedback information.
  • Step 1608 the eNB scrambles the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the specified identifier is an identifier corresponding to m UEs. That is, the designated identifier is an identifier shared by m UEs.
  • the specified identifier is: CB-RNTI or TTI-RNTI. among them:
  • the CB-RNTI is an identifier pre-allocated by the eNB in the contention-based uplink data transmission method.
  • the TTI-RNTI is related to the resource location of the uplink shared resource in step 1602.
  • the TTI-RNTI a+suf_id+b*feq_id
  • the suf_id is the subframe number corresponding to the uplink shared resource
  • the control channel indication information is used to indicate a resource location of a downlink resource in the PUSCH channel, where the downlink resource indicated by the control channel indication information is used to carry a MAC PDU.
  • the eNB first transmits control channel indication information through the PDCCH channel. That is, the eNB scrambles the control channel indication information of the MAC PDU by specifying the identifier, and sends the scrambled control channel indication information to the UE through the PDCCH channel.
  • Step 1609 the eNB sends control channel indication information to the UE.
  • the UE receives control channel indication information sent by the eNB.
  • Step 1610 The UE performs descrambling on the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • the UE obtains the resource location of the downlink resource indicated by the control channel indication information by descrambling the PDCCH channel by specifying the identifier. Only the UE that has the specified identifier can receive the control channel indication information.
  • Step 1611 The eNB sends a MAC PDU by using a downlink resource indicated by the control channel indication information.
  • the eNB transmits the MAC PDU by using the downlink resource indicated by the control channel indication information in the PDCCH.
  • Step 1612 The UE receives the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes feedback information.
  • the UE decodes the feedback information from the MAC PDU.
  • the format of the feedback information is as shown in FIG. 17.
  • step 1613 the UE reads the valid bit number and the bit map sequence from the feedback information.
  • the number of significant bits is used to indicate the number of significant bits of the bit map sequence; the bit map sequence is a sequence of bits of fixed number of bits.
  • Step 1614 If the ith bit in the bit mapping sequence is the first value and is valid, the UE reads the ith identifier and the uplink scheduling grant corresponding to the ith identifier, and detects whether the ith identifier is the UE. logo.
  • the UE reads the i-th identifier and the UL Grant corresponding to the i-th identifier from the feedback information, where x ⁇ i ⁇ 1.
  • the UE reads the fixed length information from the feedback information each time, and regards the fixed length information as "one identity + one UL Grant".
  • the UE detects whether the ith identifier is the identifier of the UE.
  • step 1615 If the ith identifier is the identifier of the UE, go to step 1615; if the ith identifier is not the identifier of the UE, go to step 1616.
  • Step 1615 If the ith identifier is the identifier of the UE, the eNB successfully receives the uplink data, and sends the remaining data to be sent according to the uplink scheduling grant.
  • the UL Grant corresponding to the ith identifier is the UL Grant corresponding to the UE.
  • the UE sends the remaining data to be sent in the buffer to the eNB according to the indication of the UL Grant, using the scheduling-based uplink data transmission mode.
  • the UE loops through step 1613 until all the UEs in the feedback information have been read.
  • Step 1617 If the ith bit in the bit mapping sequence is the second value and is valid, the UE reads the ith identifier, and detects whether the ith identifier is the identifier of the UE.
  • the UE reads the ith identifier from the feedback information, n ⁇ i ⁇ 1.
  • the UE reads fixed-length information from the feedback information, and considers the fixed-length information as "one identity.”
  • the fixed length is 16 bits.
  • the UE detects whether the ith identifier is the identifier of the UE.
  • step 1618 If the ith identifier is the identifier of the UE, go to step 1618; if the ith identifier is not the identifier of the UE, go to step 1616.
  • Step 1618 If the ith identifier is the identifier of the UE, the eNB successfully receives the uplink data.
  • Step 1619 If all the identifiers included in the feedback information are not the identifier of the UE, the eNB does not successfully receive the uplink data, and retransmits the uplink data.
  • the method for transmitting feedback information provided by the embodiment is that a part of the UE carries the buffer status information in the uplink data, and the eNB generates the UL Grant corresponding to the UE according to the buffer status information. And being carried in the feedback information and sent to the corresponding UE, so that the feedback information implements scheduling of uplink data transmission of a part of the UE.
  • step of the eNB side in the embodiment of FIG. 16 can be separately implemented as a method for transmitting feedback information on the eNB side
  • step on the UE side can be separately implemented as a method of receiving feedback information on the UE side.
  • the uplink data sent by a part of the UEs includes the “identity of the UE and the buffer status information”, and the currently available uplink resources can satisfy the resources of the uplink scheduling authorization required by the part of the UE.
  • the number of uplink resources currently available to the eNB may be less than the number of uplink resources required for the current scheduling. That is, there may be a case where the number of uplink resources available on the eNB side is insufficient. For this situation, please refer to the following examples:
  • FIG. 18 is a flowchart of a method for transmitting feedback information according to another embodiment of the present invention.
  • the method for sending the feedback information includes:
  • step 1801 the eNB allocates the same uplink shared resource to the m UEs, and m ⁇ 2.
  • the UE determines the uplink shared resource of the UE, and the uplink shared resource is the same as the uplink shared resource of the m-1 other UEs, and m ⁇ 2.
  • Step 1802 The UE sends the uplink data by using the uplink shared resource allocated by the eNB, where the uplink data includes the identifier of the UE, or the uplink data includes the identifier of the UE and the cache state information of the UE.
  • the eNB receives the uplink data on the uplink shared resource, where the n uplink data includes the identifiers of the n UEs and the buffer state information corresponding to the y UEs, where n ⁇ y ⁇ 1, and the identifiers of different UEs represent different UEs.
  • the UE represented by the identifier of the UE is at least one of the m UEs, and the buffering state information of the UE is used to indicate information about remaining data to be sent by the UE.
  • Step 1804 the eNB decodes the identifiers of the n UEs and the cache state information corresponding to the x UEs.
  • Steps 1801 through 1804 are the same as steps 1601 through 1604, as shown in the embodiment of FIG.
  • Step 1805 The eNB generates an uplink scheduling grant corresponding to each of the x UEs, where y>x ⁇ 1, where the x uplink scheduling grants refer to the currently available uplink resources, and the x uplink scheduling grants are generated according to the cache state information of the x UEs. .
  • the eNB allocates the same uplink shared resource to the 10 UEs, and the 8 UEs simultaneously send the uplink data to the eNB through the uplink shared resource, where the uplink data sent by the 6 UEs includes the identifier of the UE and the cache of the UE. The status information and the data information sent by the UE this time.
  • the uplink data sent by the two UEs only includes the identifier of the UE and the data information sent by the UE this time.
  • the number of uplink resources currently available to the eNB can only meet the buffer status information sent by the four UEs.
  • the eNB generates an identifier of the eight UEs and a UL Grant corresponding to the four UEs according to the currently available uplink resources and the buffer status information.
  • the UL Grant includes at least: an uplink transmission resource allocated for the UE.
  • Optional includes: MCS, repeat period, etc.
  • the MCS is used to indicate which modulation coding mode the UE uses when transmitting uplink data.
  • the repetition period refers to the repeated occurrence period of the uplink transmission resource allocated by the eNB to the UE when the uplink transmission scheduling uses semi-persistent scheduling.
  • Semi-persistent scheduling is a scheduling mode in which an eNB allocates uplink transmission resources that occur periodically to a UE at one time.
  • each UL Grant occupies 20 bits.
  • Step 1806 the eNB generates feedback information, where the feedback information includes a valid bit number, a bit mapping sequence, n identifiers, and x uplink scheduling grants.
  • the ith bit in the bit mapping sequence When the ith bit in the bit mapping sequence is the first value and is valid, it represents the ith identifier in the feedback information and corresponds to the uplink scheduling grant with a fixed number of bits.
  • the ith flag in the feedback information does not correspond to the uplink scheduling grant with a fixed number of bits.
  • Step 1807 the eNB generates a MAC PDU corresponding to the UE, where the MAC PDU includes feedback information.
  • Step 1808 the eNB scrambles the control channel indication information by specifying the identifier.
  • the specified identifier is an identifier corresponding to the m UEs, and the control channel indication information is used to indicate a resource location of a downlink resource that carries the MAC PDU.
  • Step 1809 the eNB sends control channel indication information to the UE.
  • the UE receives control channel indication information sent by the eNB.
  • Step 1810 The UE performs descrambling on the control channel indication information by using the specified identifier, where the identifier is the identifier corresponding to the m UEs, and the control channel indication information is used to indicate the resource location of the downlink resource that carries the MAC PDU.
  • Step 1811 The eNB sends a MAC PDU by using a downlink resource indicated by the control channel indication information.
  • Step 1812 The UE receives the MAC PDU by using the downlink resource indicated by the control channel indication information, where the MAC PDU includes feedback information.
  • step 1813 the UE reads the valid bit number and the bit map sequence from the feedback information.
  • the number of significant bits is used to indicate the number of significant bits of the bit map sequence; the bit map sequence is a sequence of bits of fixed number of bits.
  • Step 1814 If the ith bit in the bit mapping sequence is the first value and is valid, the UE reads the ith identifier and the uplink scheduling grant corresponding to the ith identifier, and detects whether the ith identifier is the UE. logo.
  • the UE detects whether the ith identifier is the identifier of the UE.
  • step 1815 If the ith identifier is the identifier of the UE, go to step 1815; if the ith identifier is not the identifier of the UE, go to step 1817.
  • Step 1815 If the ith identifier is the identifier of the UE, the eNB successfully receives the uplink data, and the UE sends the remaining data to be sent according to the uplink scheduling grant.
  • the UE loops through step 1813 until all the flags in the feedback information have been read.
  • Step 1817 If the ith bit in the bit mapping sequence is the second value and is valid, the UE reads the ith identifier, and detects whether the ith identifier is the identifier of the UE.
  • the UE detects whether the ith identifier is the identifier of the UE.
  • step 1818 If the ith identifier is the identifier of the UE, go to step 1818; if the ith identifier is not the identifier of the UE, go to step 1817.
  • Steps 1806 through 1817 are the same as steps 1606 through 1617, as shown in the embodiment of FIG.
  • Step 1818 If the ith identifier is the identifier of the UE, it indicates that the eNB successfully receives the uplink data. If there is remaining data to be sent in the UE, it indicates that the UE continues to wait for the eNB to allocate the uplink scheduling grant again.
  • Step 1819 if all the identifiers included in the feedback information are not the identifier of the UE, it indicates that the eNB The uplink data is not successfully received, and the uplink data is resent.
  • the method for transmitting feedback information provided by the embodiment generates a UL Grant corresponding to the UE for the partially corresponding UE according to the currently available uplink resource and the buffer state information, and carries the The feedback information is sent to the corresponding UE, and another part of the UE that does not allocate the UL Grant first sends the identifier of the corresponding UE, so that it waits for the eNB to allocate the UL Grant again.
  • step of the eNB side in the embodiment of FIG. 18 can be separately implemented as a method for transmitting feedback information on the eNB side
  • step on the UE side can be separately implemented as a method of receiving feedback information on the UE side.
  • the eNB sends the feedback information through the MAC PDU.
  • the eNB may send the generated feedback information to the UE by using other methods. For details, refer to the following examples:
  • FIG. 19 is a flowchart of a method for transmitting feedback information according to another embodiment of the present invention.
  • the method for sending the feedback information includes:
  • step 1901 the m uplink UEs are allocated the same uplink shared resource and the same DM-RS, and m ⁇ 2.
  • an uplink shared resource refers to a time-frequency resource on a PUSCH channel. Multiple UEs can share the same uplink shared resource to transmit data.
  • the DM-RS is used for channel estimation of the transmission data of the UE on the PUSCH channel.
  • the UE determines the uplink shared resource and the DM-RS of the UE. Specifically, the UE receives the configuration information about the uplink shared resource and the DM-RS sent by the eNB, and determines the uplink shared resource and the DM-RS of the UE according to the received configuration information and the DM-RS.
  • the UE may determine the uplink shared resource according to the configuration mode agreed in advance.
  • Step 1902 The UE sends uplink data by using an uplink shared resource, where the uplink data includes an identifier of the UE and a DM-RS.
  • the eNB allocates the same uplink shared resource to 10 UEs.
  • the three UEs that need to send uplink data send their respective uplink data to the eNB on the same uplink shared resource.
  • the uplink data includes an identifier of the corresponding UE and a DM-RS. That is, each uplink data includes: an identifier of the UE, a DM-RS, and data information sent by the UE.
  • the eNB receives the uplink data that is sent by the UE and includes the identifier of the UE and the DM-RS.
  • Step 1903 The eNB receives uplink data by using a DM-RS, where the uplink data includes an identifier of the UE.
  • the identifiers of different UEs represent different UEs, and the UE represented by the identifier of the UE is at least one of m UEs.
  • the eNB performs channel estimation by using the DM-RS in the uplink shared resource, and decodes the uplink data from the uplink shared resource according to the result of the channel estimation.
  • the uplink data includes the identifier of the UE and the DM-RS.
  • Step 1904 the eNB calculates an agreed feedback location, and the agreed feedback location is obtained according to the resource location of the uplink shared resource and the DM-RS.
  • the agreed feedback location is that the eNB calculates the resource location of the time-frequency resource on the PHICH channel according to the UE's resource location of the time-frequency resource on the PUSCH channel and the DM-RS.
  • a group number used to identify a group of the downlink resource in the PHICH used to identify a group of the downlink resource in the PHICH;
  • an Orthogonal sequence number used to identify the downlink resource in the PHICH group used to identify the n DMRS is used to identify a DM-RS sequence that the PDCCH indicates to the UE last time;
  • An index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process is an index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process.
  • the UE calculates the agreed feedback position according to the resource location of the uplink shared resource and the DM-RS.
  • Step 1905 the eNB calculates an offset of the UE, and the offset of the UE is obtained according to the identifier of the UE.
  • the preset operation operation is performed on the identifier of the UE, and the result of the preset operation operation is used as an offset corresponding to the UE.
  • the modulo method is used to calculate the offset corresponding to each UE, and the specific calculation formula is as follows:
  • the operation operation may be selected as: modulo operation or linear operation or trigonometric function operation, etc., the operation operation only needs to satisfy different UEs
  • the logo can calculate different offsets. Therefore, the type of the operation operation is not limited in this embodiment.
  • the UE calculates an offset corresponding to the UE according to the identifier of the UE, where the offset is obtained by the UE performing modulo calculation on the UE identifier.
  • Step 1906 The eNB sends an acknowledgement information ACK on the resource location of the downlink resource, where the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
  • the downlink resource location may be selected to agree on both the feedback location and the offset.
  • a group number used to identify a group of the downlink resource in the PHICH used to identify a group of the downlink resource in the PHICH;
  • an Orthogonal sequence number used to identify the downlink resource in the PHICH group used to identify the n DMRS is used to identify a DM-RS sequence that the PDCCH indicates to the UE last time;
  • f(C-RNTI) is an offset corresponding to the UE;
  • An index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process is an index for identifying a lowest PRB corresponding to the first slot in the PUSCH transmission process.
  • the offset is calculated as follows:
  • Step 1907 The UE receives the acknowledgement information ACK on the resource location of the downlink resource; the resource location of the downlink resource is indicated by the combination of the agreed feedback location and the offset.
  • Step 1908 If the UE does not receive the acknowledgment information ACK sent by the eNB, it indicates that the eNB has not successfully received the uplink data, and retransmits the uplink data.
  • the eNB allocates the same uplink shared resource and the DM-RS to the m UEs; the UE sends the uplink data by using the uplink shared resource allocated by the eNB, where the uplink data includes the identifier of the UE and the DM-RS; the eNB passes the DM- The RS receives the uplink data on the uplink shared resource; the eNB calculates the agreed feedback position according to the resource location of the uplink shared resource and the DM-RS, and calculates an offset corresponding to the UE according to the identifier of each UE, and the eNB passes the agreed feedback position.
  • the acknowledgment information ACK is sent on the downlink resource indicated by the combination of the offset and the offset; in the prior art, when multiple UEs use the same uplink shared resource and the DM-RS to send uplink data, the eNB cannot be compliant according to the agreement.
  • the problem that the downlink resource correctly sends the feedback information to different UEs; the effect of enabling each UE to clear whether the uplink data sent by itself is successfully sent is achieved.
  • the step of the eNB side may be separately implemented as a method for transmitting feedback information on the eNB side, and the step on the UE side may separately implement a method of receiving feedback information on the UE side.
  • Step 1315 in the embodiment of FIG. 13, step 1416 in the embodiment of FIG. 14, step 1619 in the embodiment of FIG. 16, 1819 in the embodiment of FIG. 18, and step 1908 in the embodiment of FIG. 19 all propose that the UE resends the uplink data.
  • a step of. In order to reduce the possibility of the UE colliding again when retransmitting the uplink data, the above steps for resending the uplink data may be replaced by the following steps 2002 to 2005:
  • step 2001 the eNB allocates a corresponding second random number to the m UEs in advance.
  • the second random number is used when the UE does not include the identifier of the UE in the feedback information, and the second random number is pre-assigned to the UE before the eNB sends the feedback to the UE by using the MAC PDU.
  • step 2002 the UE randomly generates a first random number when there is a last available uplink shared resource.
  • the most recent available uplink shared resource is the first uplink shared resource that appears after the feedback information received by the UE does not find the corresponding UE identifier.
  • the first random number is randomly generated by the UE, and is used to determine whether the UE retransmits the uplink data on the latest available uplink shared resource.
  • step 2003 the UE reads the second random number in the buffer, and the second random number is pre-allocated by the eNB.
  • the UE By comparing the size between the first random number and the second random number, it is determined whether the UE retransmits the uplink data on the latest available uplink shared resource.
  • Step 2005 if the magnitude relationship between the first random number and the second random number satisfies a preset condition, then Uplink data of the UE is retransmitted on a nearby available uplink shared resource.
  • Step 2006 If the size relationship between the first random number and the second random number does not satisfy the preset condition, re-execute the step of randomly generating the first random number when there is the last available uplink shared resource.
  • step 2002 is re-executed.
  • the preset condition may be that the first random number is greater than the second random number or the first random number is smaller than the second random number.
  • the preset condition is not limited in this embodiment.
  • the UE will not use the uplink shared resource to send the uplink data, and may optionally transmit the uplink data according to a scheduling method.
  • the eNB allocates a corresponding second random number to the UE, and when there is a last available uplink shared resource, the first random number randomly generated by the UE is compared by comparing the first random number with the second.
  • the size of the random number is used to determine whether the UE retransmits the uplink data on the latest available uplink shared resource, which reduces the possibility of re-competition collision when multiple UEs retransmit the uplink data on the latest available uplink shared resource.
  • the step 1908 can also be implemented as the following steps 2101 and 2102 instead.
  • step 2101 the UE randomly generates a random backoff time.
  • the random backoff time is randomly generated after the feedback information received by the UE is not found corresponding to the current UE identifier.
  • Step 2102 After waiting for the random backoff time, the UE resends the uplink data on the latest available uplink shared resource.
  • the most recent available uplink shared resource is the first uplink shared resource that occurs after the random backoff time is randomly generated after the feedback information received by the UE is not found corresponding to the identity of the UE.
  • the UE will not use the uplink shared resource to send the uplink data, and may optionally transmit the uplink data according to a scheduling method.
  • the present embodiment does not find the corresponding UE identifier by using the feedback information received by the UE.
  • the UE After the random backoff time is randomly generated, the UE resends the uplink data on the latest available uplink shared resource after waiting for the random backoff time, reducing the number of times when multiple UEs resend the uplink data on the latest available uplink shared resource. The possibility of a competitive collision.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例提供了一种反馈信息的发送装置、接收装置及方法,涉及通信领域,所述方法包括:eNB为m个UE分配相同的上行共享资源,m≥2;UE通过上行共享资源向eNB发送包含UE的标识和/或对应UE的缓存状态信息的上行数据;eNB根据成功接收到的上行数据生成包含UE的标识和/或上行调度授权反馈信息;eNB通过MAC PDU发送反馈信息,或者通过约定反馈位置和偏移量两者结合指示的下行资源发送确认信息。本发明解决了当多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法向各个UE正确发送反馈信息的问题,使每个UE都能够明确自己发送的上行数据是否发送成功的效果。

Description

反馈信息的发送装置、接收装置及方法 技术领域
本发明涉及通信领域,特别涉及一种反馈信息的发送装置及方法。
背景技术
用户设备(英文:User Equipment,简称:UE)向演进型基站(英文:Evolved Node B,简称:eNB)发送上行数据后,eNB通常需要向UE发送反馈信息。
在长期演进(英文:Long Term Evolution,简称:LTE)中,若一个UE使用物理层上行共享信道(英文:Physical Uplink Shared Channel,简称:PUSCH)的上行共享资源A向eNB发送上行数据,该上行共享资源A中还包含与该UE对应的解调参考信号(Demodulation ReFerence Signal,DM-RS);eNB根据与该UE对应的DM-RS接收和解码上行数据,在正确接收和解码该上行数据后,eNB使用物理层HARQ指示信道(英文:Physical Hybrid ARQ Indicator,简称:PHICH)中约定的下行资源B向UE发送确认信息(英文:Acknowledgement,简称:ACK)或者向UE发送非确认信息(英文:Nacknowledgement,简称:NACK)。根据LTE通信协议可知,该约定的下行资源的资源位置由上行共享资源A的资源位置和DM-RS两者计算得到。
在实现本发明的过程中,发明人发现现有技术至少存在以下问题:在多个UE采用基于竞争的上行数据传输方式时,eNB有可能会向多个UE分配相同的上行共享资源和DM-RS。当多个UE使用相同的上行共享资源向eNB发送上行数据时,因为不同的UE使用相同的上行共享资源和相同的DM-RS,会产生冲突,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息。
发明内容
为了解决现有技术的问题,本发明实施例提供了一种反馈信息的发送装置、接收装置及方法。
第一方面,本发明实施例提供了一种反馈信息的发送装置,所述装置包括:
处理模块,用于为m个UE分配相同的上行共享资源,m≥2;
接收模块,用于在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
所述处理模块,还用于确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1;
所述处理模块,还用于生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
发送模块,用于通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
在第一方面的第一种可能的实施方式中,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示所述UE剩余的待发送数据的信息;
所述处理模块,还用于解码得到所述UE的标识和所述UE的缓存状态信息;
所述处理模块,还用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
所述处理模块,还用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
在第一方面的第二种可能的实施方式中,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理模块,还用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
所述处理模块,还用于生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
所述处理模块,还用于生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在第一方面的第三种可能的实施方式中,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理模块,还用于解码得到n个所述UE的标识和与y个所述UE对 应的所述缓存状态信息;
所述处理模块,还用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
所述处理模块,还用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
结合第一方面的第二种可能的实施方式或第一方面的第三种可能的实施方式,在第一方面的第四种可能的实施方式中,所述处理模块,用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
所述第一取值和所述第二取值分别为0和1中的一个。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式或第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式,在第一方面的第五种可能的实施方式中,
所述处理模块,还用于生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
所述发送模块,还用于通过指定标识将控制信道指示信息进行加扰;所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述发送模块,还用于将所述控制信道指示信息发送给所述UE;
所述发送模块,还用于通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
结合第一方面的第五种可能的实施方式,在第一方面的第六种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式或第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式或第一方面的第五种可能的实施方式或第一方面的第六种可能的实施方式,在第一方面的第七种可能的实施方式中,
所述处理模块,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含所述UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
第二方面,本发明实施例提供了一种反馈信息的发送装置,所述装置包括:
处理模块,用于为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
接收模块,用于通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
所述处理模块,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理模块,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
发送模块,用于在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第二方面的第一种可能的实施方式中,所述处理模块,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第二方面的第一种可能的实施方式,在第二方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000001
Figure PCTCN2015085475-appb-000002
其中,
Figure PCTCN2015085475-appb-000003
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000004
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示 的DM-RS序列;
Figure PCTCN2015085475-appb-000005
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000006
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000007
Figure PCTCN2015085475-appb-000008
Figure PCTCN2015085475-appb-000009
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第二方面的第二种可能的实施方式,在第二方面的第三种可能的实施方式中,所述处理模块,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
第三方面,本发明实施例提供了一种反馈信息的接收装置,所述装置包括:
处理模块,用于确定用户设备UE的上行共享资源;
发送模块,用于通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
接收模块,用于通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE;所述标识表示所述n个UE的上行数据被eNB成功接收,n≥1。
在第三方面的第一种可能的实施方式中,
所述处理模块,用于生成上行数据,所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述发送模块,用于将所述上行数据发送给所述eNB。
在第三方面的第二种可能的实施方式中,
所述处理模块,还用于从所述反馈信息中读取出第i个标识,n≥i≥1;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
结合第三方面的第一种可能的实施方式,在第三方面的第三种可能的实施方式中,
所述处理模块,还用于从所述反馈信息中读取出第i个标识和对应的所述 上行调度授权;检测所述第i个标识是否为所述UE的标识,n≥i≥1;
所述发送模块,还用于在所述第i个标识是所述UE的标识时,根据所述上行调度授权发送剩余的待发送数据。
结合第三方面或第三方面的第一种可能的实施方式,在第三方面的第四种可能的实施方式中,
所述处理模块,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;检测所述第i个标识是否为所述UE的标识;
所述发送模块,还用于在所述第i个标识是所述UE的标识,根据所述上行调度授权发送剩余的待发送数据;
所述处理模块,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
结合第三方面的第二种可能的实施方式或第三方面的第三种可能的实施方式或第三方面的第四种可能的实施方式,在第三方面的第五种可能的实施方式中,所述发送模块,还用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,重新发送上行数据。
结合第三方面的第五种可能的实施方式,在第三方面的第六种可能的实施方式中,
所述处理模块,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
所述处理模块,用于读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
所述发送模块,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,在所述最近一个可用的上行共享资源上重新发送上行数据;
所述处理模块,用于在所述第一随机数和所述第二随机数的大小关系不满 足预设条件时,重新生成第一随机数。
结合第三方面的第五种可能的实施方式,在第三方面的第七种可能的实施方式中,
所述处理模块,用于随机生成一个随机退避时间;
所述发送模块,用于在等待所述随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
结合第三方面或第三方面的第一种可能的实施方式或第三方面的第二种可能的实施方式或第三方面的第三种可能的实施方式,在第三方面的第八种可能的实施方式中,
所述接收模块,用于接收所述控制信道指示信息;
所述接收模块,用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述接收模块,用于通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
结合第三方面的第八种可能的实施方式,在第三方面的第九种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
第四方面,本发明实施例提供了一种反馈信息的接收装置,所述装置包括:
处理模块,用于确定用户设备UE的上行共享资源和解调参考信号DM-RS;
发送模块,用于通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识和所述DM-RS;
所述处理模块,用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理模块,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
接收模块,用于在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第四方面的第一种可能的实施方式中,所述处理模块,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第四方面的第一种可能的实施方式,在第四方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000010
Figure PCTCN2015085475-appb-000011
其中,
Figure PCTCN2015085475-appb-000012
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000014
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000015
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000016
Figure PCTCN2015085475-appb-000017
Figure PCTCN2015085475-appb-000018
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第四方面的第二种可能的实施方式,在第四方面的第三种可能的实施方式中,所述处理模块,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
第五方面,本发明实施例提供了一种基站,所述基站包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于为m个用户设备UE分配相同的上行共享资源,m≥2;
所述处理器,还用于控制所述收发器在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
所述处理器,还用于确定n个UE,其中,所述n个UE的上行数据被成 功接收,m≥n≥1;
所述处理器,还用于生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
所述处理器,还用于控制所述收发器通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
在第五方面的第一种可能的实施方式中,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理器,用于解码得到所述UE的标识和所述UE的缓存状态信息;
所述处理器,用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
所述处理器,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
在第五方面的第二种可能的实施方式中,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理器,用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
所述处理器,用于生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
所述处理器,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在第五方面的第三种可能的实施方式中,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理器,用于解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息;
所述处理器,用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源;所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
所述处理器,用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
结合第五方面的第二种可能的实施方式或第五方面的第三种可能的实施方式,在第五方面的第四种可能的实施方式中,
所述处理器,用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
所述有效比特位数用于指示所述比特映射序列的有效位数;
所述比特映射序列是固定位数的比特序列;
当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
所述第一取值和所述第二取值分别为0和1中的一个。
结合第五方面或第五方面的第一种可能的实施方式或第五方面的第二种可能的实施方式或第五方面的第三种可能的实施方式或第五方面的第四种可能的实施方式,在第五方面的第五种可能的实施方式中,
所述处理器,用于生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
所述处理器,用于通过指定标识将控制信道指示信息进行加扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述处理器,用于控制所述收发器将所述控制信道指示信息发送给所述UE;
所述处理器,用于控制所述收发器通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
结合第五方面的第五种可能的实施方式,在第五方面的第六种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
结合第五方面或第五方面的第一种可能的实施方式或第五方面的第二种可能的实施方式或第五方面的第三种可能的实施方式或第五方面的第四种可能的实施方式或第五方面的第五种可能的实施方式或第五方面的第六种可能 的实施方式,在第五方面的第七种可能的实施方式中,
所述处理器,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含本UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
第六方面,本发明实施例提供了一种基站,所述基站包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
所述处理器,还用于控制所述收发器通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
所述处理器,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理器,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
所述处理器,还用于控制所述收发器在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第六方面的第一种可能的实施方式中,
所述处理器,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第六方面的第一种可能的实施方式,在第六方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000019
Figure PCTCN2015085475-appb-000020
其中,
Figure PCTCN2015085475-appb-000021
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000022
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000023
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000024
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000025
Figure PCTCN2015085475-appb-000026
Figure PCTCN2015085475-appb-000027
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第六方面的第二种可能的实施方式,在第六方面的第三种可能的实施方式中,
所述处理器,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
第七方面,本发明实施例提供了一种UE,所述UE包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于确定用户设备UE的上行共享资源,所述上行共享资源与m-1个其他UE的上行共享资源相同,m≥2;
所述处理器,还用于控制所述收发器通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
所述处理器,还用于控制所述收发器通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE,所述标识表示所述n个UE的上行数据被eNB成功接收,m≥n≥1。
在第七方面的第一种可能的实施方式中,所述处理器,用于生成所述上行数据;所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;所述处理器,用于控制所述收发器将所述上行数据发送给所述eNB。
在第七方面的第二种可能的实施方式中,所述处理器,还用于从所述反馈信息中读取出第i个标识,n≥i≥1;
所述处理器,还用于检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
结合第七方面的第一种可能的实施方式,在第七方面的第三种可能的实施方式中,所述处理器,还用于从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;
所述处理器,还用于检测所述第i个标识是否为所述UE的标识,n≥i≥1;
所述处理器,还用于在所述第i个标识是所述UE的标识时,控制所述收发器根据所述上行调度授权发送剩余的待发送数据。
结合第七方面或第七方面的第一种可能的实施方式,在第七方面的第四种可能的实施方式中,所述处理器,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
所述处理器,还用于在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;
所述处理器,还用于检测所述第i个标识是否为所述UE的标识;
所述处理器,还用于在所述第i个标识是所述UE的标识时,控制所述收发器根据所述上行调度授权发送剩余的待发送数据;
所述处理器,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;
所述处理器,还用于检测所述第i个标识是否为所述UE的标识;若所述第i个UE的标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
结合第七方面的第二种可能的实施方式或第七方面的第三种可能的实施方式或第七方面的第四种可能的实施方式,在第七方面的第五种可能的实施方式中,所述处理器,用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,控制所述收发器重新发送上行数据。
结合第七方面的第五种可能的实施方式,在第七方面的第六种可能的实施方式中,所述处理器,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
所述处理器,用于读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;
所述处理器,用于判断所述第一随机数和所述第二随机数的大小关系是否 满足预设条件;
所述处理器,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,控制所述收发器在所述最近一个可用的上行共享资源上重新发送上行数据;
所述处理器,用于在所述第一随机数和所述第二随机数的大小关系不满足预设条件时,重新执行所述在存在最近一个可用的上行共享资源时,随机生成第一随机数。
结合第七方面的第五种可能的实施方式,在第七方面的第七种可能的实施方式中,
所述处理器,用于随机生成一个随机退避时间;
所述处理器,用于在等待所述随机退避时间之后,控制所述收发器在最近一个可用的上行共享资源上重新发送上行数据。
结合第七方面或第七方面的第一种可能的实施方式或第七方面的第二种可能的实施方式或第七方面的第三种可能的实施方式,在第七方面的第八种可能的实施方式中,
所述处理器,用于控制所述收发器接收所述控制信道指示信息;
所述处理器,用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述处理器,用于控制所述收发器通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
结合第七方面的第八种可能的实施方式,在第七方面的第九种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
第八方面,本发明实施例提供了一种UE,所述UE包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于确定用户设备UE的上行共享资源和解调参考信号DM-RS,所述上行共享资源和DM-RS是所述eNB为m个用户设备UE分配的 相同的上行共享资源和DM-RS,m≥2;
所述处理器,还用于控制所述收发器通过所述上行共享资源发送上行数据,所述上行数据包含UE的标识和所述DM-RS;
所述处理器,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理器,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
所述处理器,还用于控制所述收发器在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第八方面的第一种可能的实施方式中,
所述处理器,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第八方面的第一种可能的实施方式,在第八方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000028
Figure PCTCN2015085475-appb-000029
其中,
Figure PCTCN2015085475-appb-000030
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000031
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000032
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000033
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000034
Figure PCTCN2015085475-appb-000035
Figure PCTCN2015085475-appb-000036
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第八方面的第二种可能的实施方式,在第八方面的第三种可能的实施 方式中,
所述处理器,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
第九方面,本发明实施例提供了一种反馈信息发送和接收系统,所述反馈信息发送和接收系统包括:
eNB和UE;
所述eNB包括第一方面和第一方面的各种可能实施方式中任一所提供的反馈信息发送装置,或,所述eNB包括第二方面和第二方面的各种可能实施方式中任一所提供的反馈信息发送装置,或,所述eNB包括第五方面和第五方面的各种可能实施方式中任一所提供的eNB,或,所述eNB包括第六方面和第六方面的各种可能实施方式中任一所提供的eNB。
所述UE包括第三方面和第三方面的各种可能实施方式中任一所提供的反馈信息接收装置,或,所述UE包括第四方面和第四方面的各种可能实施方式中任一所提供的反馈信息接收装置,或,所述UE包括第七方面和第七方面的各种可能实施方式中任一所提供的UE,或,所述UE包括第八方面和第八方面的各种可能实施方式中任一所提供的UE。
第十方面,本发明实施例提供了一种反馈信息的发送方法,所述方法包括:
为m个用户设备UE分配相同的上行共享资源,m≥2;
在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
包含确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1;
生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
在第十方面的第一种可能的实施方式中,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示所述UE剩余的待发送数据的信息;
所述生成反馈信息,包括:
解码得到所述UE的标识和所述UE的缓存状态信息;
生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
在第十方面的第二种可能的实施方式中,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述生成反馈信息,包括:
解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在第十方面的第三种可能的实施方式中,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息
所述生成反馈信息,包括:
解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息;
生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
结合第十方面的第二种可能的实施方式或第十方面的第三种可能的实施方式,在第十方面的第四种可能的实施方式中,所述生成所述反馈信息,包括:
生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
所述有效比特位数用于指示所述比特映射序列的有效位数;
所述比特映射序列是固定位数的比特序列;
当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
所述第一取值和所述第二取值分别为0和1中的一个。
结合第十方面或第十方面的第一种可能的实施方式或第十方面的第二种可能的实施方式或第十方面的第三种可能的实施方式或第十方面的第四种可能的实施方式,在第十方面的第五种可能的实施方式中,所述通过MAC PDU发送所述反馈信息,包括:
生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
通过指定标识将控制信道指示信息进行加扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
将所述控制信道指示信息发送给所述UE;
通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
结合第十方面的第五种可能的实施方式,在第十方面的第六种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
结合第十方面或第十方面的第一种可能的实施方式或第十方面的第二种可能的实施方式或第十方面的第三种可能的实施方式或第十方面的第四种可能的实施方式或第十方面的第五种可能的实施方式或第十方面的第六种可能的实施方式,在第十方面的第七种可能的实施方式中,所述通过MAC PDU发送所述反馈信息之前,还包括:
为m个所述UE分配各自对应的第二随机数,所述第二随机数是所述UE在所述反馈信息中未包含所述UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
第十一方面,本发明实施例提供了一种反馈信息的发送方法,所述方法包括:
为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第十一方面的第一种可能的实施方式中,所述计算所述UE的偏移量,包括:
对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第十一方面的第一种可能的实施方式,在第十一方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000037
Figure PCTCN2015085475-appb-000038
其中,
Figure PCTCN2015085475-appb-000039
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000040
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000041
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000042
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000043
Figure PCTCN2015085475-appb-000044
Figure PCTCN2015085475-appb-000045
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第十一方面的第二种可能的实施方式,在第十一方面的第三种可能的实施方式中,所述对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量,包括:
计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
第十二方面,本发明实施例提供了一种反馈信息的接收方法,所述方法包括:
确定用户设备UE的上行共享资源;
通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE;所述标识表示所述n个UE的上行数据被基站成功接收,m≥n≥1。
在第十二方面的第一种可能的实施方式中,所述通过所述上行共享资源发送上行数据,包括:
生成上行数据,所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
将所述上行数据发送给所述eNB。
在第十二方面的第二种可能的实施方式中,所述方法,还包括:
从所述反馈信息中读取出第i个标识,n≥i≥1;
检测所述第i个标识是否为所述UE的标识;
若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
结合第十二方面的第一种可能的实施方式,在第十二方面的第三种可能的实施方式中,所述方法,还包括:
从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;
检测所述第i个标识是否为所述UE的标识,n≥i≥1;
若所述第i个标识是所述UE的标识,则根据所述上行调度授权发送剩余的待发送数据。
结合第十二方面或第十二方面的第一种可能的实施方式,在第十二方面的第四种可能的实施方式中,所述方法还包括:
从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列
在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则根据所述上行调 度授权发送剩余的待发送数据;
在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
结合第十二方面的第二种可能的实施方式或第十二方面的第三种可能的实施方式或第十二方面的第四种可能的实施方式,在第十二方面的第五种可能的实施方式中,所述检测所述第i个标识是否为所述UE的标识之后,还包括:
若所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收上行数据,重新发送上行数据。
结合第十二方面的第五种可能的实施方式,在第十二方面的第六种可能的实施方式中,所述重新发送上行数据,包括:
在存在最近一个可用的上行共享资源时,随机生成第一随机数;
读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;
判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
若所述第一随机数和所述第二随机数的大小关系满足预设条件,则在所述最近一个可用的上行共享资源上重新发送上行数据;
若所述第一随机数和所述第二随机数的大小关系不满足预设条件,则重新执行所述在存在最近一个可用的上行共享资源时,随机生成第一随机数的步骤。
结合第十二方面的第五种可能的实施方式,在第十二方面的第七种可能的实施方式中,所述重新发送上行数据,包括:
随机生成一个随机退避时间;
在等待所述随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
结合第十二方面或第十二方面的第一种可能的实施方式或第十二方面的第二种可能的实施方式或第十二方面的第三种可能的实施方式,在第十二方面的第八种可能的实施方式中,所述通过MAC PDU接收反馈信息,包括:
接收所述控制信道指示信息;
通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的 下行资源的资源位置;
通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
结合第十二方面的第八种可能的实施方式,在第十二方面的第九种可能的实施方式中,所述指定标识是竞争式无线网络临时标识CB-RNTI;
或,
所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
第十三方面,本发明实施例提供了一种反馈信息的接收方法,所述方法包括:
确定用户设备UE的上行共享资源和解调参考信号DM-RS;
通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识和所述DM-RS;
计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在第十三方面的第一种可能的实施方式中,所述计算所述UE的偏移量,包括:
对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
结合第十三方面的第一种可能的实施方式,在第十三方面的第二种可能的实施方式中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000046
Figure PCTCN2015085475-appb-000047
其中,
Figure PCTCN2015085475-appb-000048
用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000049
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000050
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000051
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000052
Figure PCTCN2015085475-appb-000053
Figure PCTCN2015085475-appb-000054
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
结合第十三方面的第二种可能的实施方式,在第十三方面的第三种可能的实施方式中,所述UE的偏移量,包括:
对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量,包括:
计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
本发明实施例提供的技术方案的有益效果是:
通过eNB为m个UE分配相同的上行共享资源,m≥2;UE通过上行共享资源发送上行数据;eNB在上行共享资源上接收上行数据,上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个;eNB根据成功接收到的n个UE的上行数据生成反馈信息,反馈信息包含n个标识,m≥n≥1;eNB通过MAC PDU发送反馈信息;解决了在现有技术中多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一个实施例提供的反馈信息发送装置的框图;
图2是本发明另一个实施例提供的反馈信息发送装置的框图;
图3是本发明一个实施例提供的反馈信息的接收装置的框图;
图4是本发明另一个实施例提供的反馈信息的接收装置的框图;
图5是本发明再一个实施例提供的反馈信息的接收装置的框图;
图6是本发明一个实施例提供的eNB的结构方框图;
图7是本发明另一个实施例提供的eNB的结构方框图;
图8是本发明一个实施例提供的UE的结构方框图;
图9是本发明另一个实施例提供的UE的结构方框图;
图10是本发明一个实施例提供的反馈信息发送和接收系统的框图;
图11本发明一个实施例提供的反馈信息的发送方法的流程图;
图12是本发明一个实施例提供的反馈信息的格式示意图;
图13是本发明另一个实施例提供的反馈信息的发送方法的流程图;
图14是本发明另一个实施例提供的反馈信息的发送方法的流程图;
图15是本发明另一个实施例提供的反馈信息的格式示意图;
图16是本发明另一个实施例提供的反馈信息的发送方法的流程图;
图17是本发明另一个实施例提供的反馈信息的格式示意图;
图18是本发明另一个实施例提供的反馈信息的发送方法的流程图;
图19是本发明另一个实施例提供的反馈信息的发送方法的流程图;
图20是本发明一个实施例提供的重新发送上行数据方法的流程图;
图21是本发明另一个实施例提供的重新发送上行数据方法的流程图;
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
请参考图1,其示出了本发明一个实施例提供的反馈信息发送装置的框图。该反馈信息发送装置可以通过软件、硬件或者两者的结合实现成为eNB的全部或者一部分。该反馈信息发送装置可以包括:处理模块110、接收模块120、和发送模块130。
处理模块110,用于为m个UE分配相同的上行共享资源,m≥2。
接收模块120,用于在上行共享资源上接收上行数据,该上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE 中的至少一个。
处理模块110,还用于确定n个UE,其中,n个UE的上行数据被成功接收,m≥n≥1。
eNB通过成功接收到的包含UE标识的上行数据,确定发送该上行数据的UE。
处理模块110,还用于生成反馈信息,反馈信息包含n个标识,不同标识表示不同UE。
发送模块130,用于通过介质层用户分组数据单元(英文:Media access control packet data unit,简称:MAC PDU)发送反馈信息。
综上所述,本实施例提供的反馈信息的发送装置,通过eNB为m个UE分配相同的上行共享资源,m≥2;eNB在上行共享资源上接收上行数据,上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个;eNB根据成功接收到的n个UE的上行数据生成反馈信息,反馈信息包含n个标识,m≥n≥1;eNB通过MAC PDU发送反馈信息;解决了在现有技术中多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
在基于图1所示的实施例提供的可选实施例中,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示所述UE剩余的待发送数据的信息;
所述处理模块110,还用于解码得到所述UE的标识和所述UE的缓存状态信息。
所述处理模块110,还用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的。
所述处理模块110,还用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
在基于图1所示的实施例提供的可选实施例中,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理模块110,还用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息。
所述处理模块110,还用于生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的。
所述处理模块110,还用于生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在基于图1所示的实施例提供的可选实施例中,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理模块110,还用于解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息。
所述处理模块110,还用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的。
所述处理模块110,还用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在基于图1所示的实施例提供的可选实施例中,
所述处理模块110,用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权。
所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列。
当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述标识后对应有固定位数的所述上行调度授权。
当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述标识后未对应有固定位数的所述上行调度授权。
所述第一取值和所述第二取值分别为0和1中的一个。
在基于图1所示的实施例提供的可选实施例中,
所述处理模块110,用于生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
所述发送模块130,用于通过指定标识将控制信道指示信息进行加扰;所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述发送模块130,用于将所述控制信道指示信息发送给所述UE;
所述发送模块130,用于通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
在基于图1所示的实施例提供的可选实施例中,所述指定标识是竞争式无线网络临时标识用户设备(英文:Contention based Radio Network Temporary Identifier,简称:CB-RNTI);
或,
所述指定标识是传输时间间隔无线网络标识(英文:Transmission Time Interval Radio Network Temporary Identifier,简称:TTI-RNTI),所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
在基于图1所示的实施例提供的可选实施例中,
所述处理模块110,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含所述UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
请参考图2,其示出了本发明另一实施例提供的反馈信息发送装置的框图。该反馈信息发送装置可以通过软件、硬件或者两者的结合实现成为eNB的全部或者一部分。该反馈信息发送装置可以包括:处理模块210、接收模块220和发送模块230。
处理模块210,用于为m个UE分配相同的上行共享资源和相同的DM-RS,m≥2。
接收模块220,用于通过DM-RS接收上行数据,上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个。
处理模块210,用于计算约定反馈位置,约定反馈位置根据上行共享资源的资源位置和DM-RS得到。
在本实施例中,处理模块210,还用于计算UE的偏移量,UE的偏移量根据UE的标识得到。
发送模块230,用于在下行资源的资源位置上发送确认信息ACK,下行资源的资源位置是约定反馈位置和偏移量两者结合所指示的。
综上所述,本实施例提供的反馈信息的发送装置,通过eNB为m个UE分配相同的上行共享资源和DM-RS;eNB通过DM-RS在上行共享资源上接 收上行数据;eNB根据上行共享资源的资源位置和DM-RS计算得到约定反馈位置,根据每个UE的标识计算得到与UE对应的偏移量,对于每一个UE,eNB通过在约定反馈位置和偏移量两者的结合所指示的下行资源上向UE发送确认信息ACK;解决了现有技术中当多个UE同时在相同的上行共享资源和DM-RS向eNB发送上行数据时,导致eNB无法采用位于约定的下行资源向各个UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
在基于图2所示的实施例提供的可选实施例中,所述处理模块210,用于对UE的标识进行预设运算操作,将预设运算操作的结果作为UE对应的偏移量。
在基于图2所示的实施例提供的可选实施例中,下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000055
Figure PCTCN2015085475-appb-000056
其中,
Figure PCTCN2015085475-appb-000057
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000058
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道(英文:Physical Downlink Control Channel,简称:PDCCH)最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000059
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000060
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000061
Figure PCTCN2015085475-appb-000062
Figure PCTCN2015085475-appb-000063
用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块(英文:Physical Resource Block,简称:PRB)的索引。
在基于图2所示的实施例提供的可选实施例中,所述处理模块210,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
请参考图3,其示出了本发明一个实施例提供的反馈信息的接收装置的框图。该反馈信息发送装置可以通过软件、硬件或者两者的结合实现成为UE的全部或者一部分。该反馈信息的接收装置可以包括:处理模块310、发送模块320和接收模块330。
处理模块310,用于确定UE的上行共享资源。该上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
发送模块320,用于通过上行共享资源发送上行数据,上行数据包含UE的标识。
接收模块330,用于通过MAC PDU接收反馈信息,反馈信息包含n个标识,n个标识中,不同标识表示不同UE;标识表示n个UE的上行数据被eNB成功接收,m≥n≥1。
综上所述,本实施例提供的反馈信息的发送装置,通过确定用户设备UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2;通过上行共享资源发送上行数据,上行数据包含UE的标识;通过介质访问控制协议数据单元MAC PDU接收反馈信息,反馈信息包含n个标识,n个标识中,不同标识表示不同UE;标识表示n个UE的上行数据被eNB成功接收,m≥n≥1;解决了现有技术中当多个UE同时在相同的上行共享资源和DM-RS向eNB发送上行数据时,导致eNB无法采用位于约定的下行资源向各个UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
请参考图4,其示出了本发明另一个实施例提供的反馈信息的接收装置的框图。该反馈信息发送装置可以通过软件、硬件或者两者的结合实现成为UE的全部或者一部分。该反馈信息的接收装置可以包括:处理模块410、发送模块420和接收模块430。
处理模块410,用于确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
发送模块420,用于通过上行共享资源发送上行数据,上行数据包含UE的标识。
接收模块430,用于通过MAC PDU接收反馈信息,反馈信息包含n个标 识,n个标识中,不同标识表示不同UE;标识表示n个UE的上行数据被eNB成功接收,m≥n≥1。
在基于图4所示的实施例提供的可选实施例中,所述装置还包括:
处理模块410,还用于生成上行数据,所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息。
发送模块420,用于将所述上行数据发送给所述eNB。
在基于图4所示的实施例提供的可选实施例中,所述装置还包括;
所述处理模块410,还用于从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;检测所述第i个标识是否为所述UE的标识,n≥i≥1;
所述发送模块420,还用于在所述第i个标识是所述UE的标识时,根据所述上行调度授权发送剩余的待发送数据。
在基于图4所示的实施例提供的可选实施例中,
所述处理模块410,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;检测所述第i个标识是否为所述UE的标识;
所述发送模块420,还用于在所述第i个标识是所述UE的标识,根据所述上行调度授权发送剩余的待发送数据;
所述处理模块410,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
在基于图4所示的实施例提供的可选实施例中,
所述发送模块420,还用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,重新发送上行数据。
在基于图4所示的实施例提供的可选实施例中,
所述处理模块410,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
所述处理模块410,用于读取缓存中的第二随机数,所述第二随机数是所 述eNB预先分配的;判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
所述发送模块420,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,在所述最近一个可用的上行共享资源上重新发送上行数据;
所述处理模块410,用于在所述第一随机数和所述第二随机数的大小关系不满足预设条件时,重新生成第一随机数。
在基于图4所示的实施例提供的可选实施例中,
所述处理模块410,用于随机生成一个随机退避时间;
所述发送模块420,用于在等待所述随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
在基于图4所示的实施例提供的可选实施例中,
所述接收模块430,用于接收所述控制信道指示信息;
所述接收模块430,用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述接收模块430,用于通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
在基于图4所示的实施例提供的可选实施例中,所述指定标识是CB-RNTI;或,TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
请参考图5,其示出了本发明一个实施例提供的反馈信息的接收装置的框图。该反馈信息的接收装置可以通过软件、硬件或者两者的结合实现成为UE的全部或一部分。该反馈信息的接收装置可以包括:处理模块510,发送模块520和接收模块530。
处理模块510,用于确定UE的上行共享资源和DM-RS。该上行共享资源和DM-RS是eNB为m个UE分配的相同的上行共享资源和DM-RS,m≥2。
发送模块520,用于通过上行共享资源发送上行数据,上行数据包含UE的标识和DM-RS。
处理模块510,还用于计算约定反馈位置,约定反馈位置根据上行共享资源的资源位置和DM-RS得到。
处理模块510,还用于计算UE的偏移量,UE的偏移量根据UE的标识得到。
接收模块530,用于在下行资源的资源位置上接收确认信息ACK;下行资源的资源位置是约定反馈位置和偏移量两者结合所指示的。
综上所述,本实施例提供的反馈信息的发送装置,通过eNB为m个UE分配相同的上行共享资源和DM-RS;eNB通过DM-RS在上行共享资源上接收上行数据;eNB根据上行共享资源的资源位置和DM-RS计算得到约定反馈位置,根据每个UE的标识计算得到与UE对应的偏移量,对于每一个UE,eNB通过在约定反馈位置和偏移量两者的结合所指示的下行资源上向UE发送确认信息ACK;解决了现有技术中当多个UE同时在相同的上行共享资源和DM-RS向eNB发送上行数据时,导致eNB无法采用位于约定的下行资源向各个UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
在基于图5所示的实施例提供的可选实施例中,
所述处理模块510,还用于对UE的标识进行预设运算操作,将预设运算操作的结果作为UE对应的偏移量。
在基于图5所示的实施例提供的可选实施例中,下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000064
Figure PCTCN2015085475-appb-000065
其中,
Figure PCTCN2015085475-appb-000066
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000067
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000068
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000069
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000070
Figure PCTCN2015085475-appb-000071
Figure PCTCN2015085475-appb-000072
用于标识对应所述PUSCH传输过程中第一个时隙的最低PRB的 索引。
在基于图5所示的实施例提供的可选实施例中,处理模块510,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
请参考图6,其示出了本发明一个实施例提供的eNB的结构方框图。如图6所示,eNB600包括:总线610,以及通过总线610通信的处理器620、存储器630和收发器640。其中,存储器630用于存储一个或者一个以上的指令,该指令被配置成由处理器620执行。其中:
所述处理器620,用于为m个UE分配相同的上行共享资源,m≥2。
所述处理器620,还用于控制收发器640在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个。
所述处理器620,还用于确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1。
所述处理器620,还用于生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE。
所述处理器620,还用于控制所述收发器640通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于解码得到所述UE的标识和所述UE的缓存状态信息。
所述处理器620,用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的。
所述处理器620,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
在基于图6所示实施例提供的可选实施例中,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理器620,用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息。
所述处理器620,用于生成与x个所述UE各自对应的上行调度授权,所 述x个上行调度授权根据x个所述UE的缓存状态信息生成的。
所述处理器620,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在基于图6所示实施例提供的可选实施例中,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
所述处理器620,用于解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息。
所述处理器620,用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源;所述x个上行调度授权根据x个所述UE的缓存状态信息生成的。
所述处理器620,用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
所述有效比特位数用于指示所述比特映射序列的有效位数;
所述比特映射序列是固定位数的比特序列;
当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
所述第一取值和所述第二取值分别为0和1中的一个。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
所述处理器620,用于通过指定标识将控制信道指示信息进行加扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述处理器620,用于控制所述收发器640将所述控制信道指示信息发送给所述UE;
所述处理器620,用于控制所述收发器640通过所述控制信道指示信息所 指示的下行资源发送所述MAC PDU。
在基于图6所示实施例提供的可选实施例中,所述指定标识是CB-RNTI,或,TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
在基于图6所示实施例提供的可选实施例中,所述处理器620,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含本UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
请参考图7,其示出了本发明另一个实施例提供的eNB的结构方框图。如图7所示,eNB700包括:总线710,以及通过总线710通信的处理器720、存储器730和收发器740。其中,存储器730用于存储一个或者一个以上的指令,该指令被配置成由处理器720执行。其中:
所述处理器720,用于为m个UE分配相同的上行共享资源和相同的DM-RS,m≥2;
所述处理器720,还用于控制所述收发器740通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
所述处理器720,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理器720,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
所述处理器720,还用于控制所述收发器740在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在基于图7所示实施例提供的可选实施例中,所述处理器720,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
在基于图7所示实施例提供的可选实施例中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000073
Figure PCTCN2015085475-appb-000074
其中,
Figure PCTCN2015085475-appb-000075
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000076
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000077
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000078
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000079
Figure PCTCN2015085475-appb-000080
Figure PCTCN2015085475-appb-000081
用于标识对应所述PUSCH传输过程中第一个时隙的最低PRB的索引。
在基于图7所示实施例提供的可选实施例中,所述处理器720,用于计算所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
请参考图8,其示出了本发明一个实施例提供的UE的结构方框图。如图8所示,UE800包括:总线810,以及通过总线810通信的处理器820、存储器830和收发器840。其中,存储器830用于存储一个或者一个以上的指令,该指令被配置成由处理器820执行。其中:
所述处理器820,用于确定UE的上行共享资源。所述上行共享资源与m-1个其他UE的上行共享资源相同,m≥2;
所述处理器820,还用于控制所述收发器840通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
所述处理器820,还用于控制所述收发器840通过MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE,所述标识表示所述n个UE的上行数据被eNB成功接收,m≥n≥1。
在基于图8所示实施例提供的可选实施例中,
所述处理器820,用于生成所述上行数据;所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的 信息;
所述处理器820,用于控制所述收发器840将所述上行数据发送给所述eNB。
在基于图8所示实施例提供的可选实施例中,
所述处理器820,还用于从所述反馈信息中读取出第i个标识,n≥i≥1;
所述处理器820,还用于检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
在基于图8所示实施例提供的可选实施例中,
所述处理器820,还用于从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;
所述处理器820,还用于检测所述第i个标识是否为所述UE的标识,n≥i≥1;
所述处理器820,还用于在所述第i个标识是所述UE的标识时,控制所述收发器840根据所述上行调度授权发送剩余的待发送数据。
在基于图8所示实施例提供的可选实施例中,
所述处理器820,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
所述处理器820,还用于在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;
所述处理器820,还用于检测所述第i个标识是否为所述UE的标识;
所述处理器820,还用于在所述第i个标识是所述UE的标识时,控制所述收发器840根据所述上行调度授权发送剩余的待发送数据;
所述处理器820,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;
所述处理器820,还用于检测所述第i个标识是否为所述UE的标识;
若所述第i个UE的标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
在基于图8所示实施例提供的可选实施例中,所述处理器820,用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,控制所述收发器840重新发送上行数据。
在基于图8所示实施例提供的可选实施例中,所述处理器820,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
所述处理器820,用于读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;
所述处理器820,用于判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
所述处理器820,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,控制所述收发器840在所述最近一个可用的上行共享资源上重新发送上行数据;
所述处理器820,用于在所述第一随机数和所述第二随机数的大小关系不满足预设条件时,重新执行所述在存在最近一个可用的上行共享资源时,随机生成第一随机数。
在基于图8所示实施例提供的可选实施例中,所述处理器820,用于随机生成一个随机退避时间;
所述处理器820,用于在等待所述随机退避时间之后,控制所述收发器840在最近一个可用的上行共享资源上重新发送上行数据。
在基于图8所示实施例提供的可选实施例中,所述处理器820,用于控制所述收发器840接收所述控制信道指示信息;
所述处理器820,用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
所述处理器820,用于控制所述收发器840通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
在基于图8所示实施例提供的可选实施例中,所述指定标识是CB-RNTI;或,TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
请参考图9,其示出了本发明另一个实施例提供的UE的结构方框图。如图9所示,UE900包括:总线910,以及通过总线910通信的处理器920、存储器930和收发器940。其中,存储器930用于存储一个或者一个以上的指令,该指令被配置成由处理器920执行。其中:
所述处理器920,用于确定UE的上行共享资源和DM-RS。所述上行共享 资源和DM-RS是所述eNB为m个用户设备UE分配的相同的上行共享资源和DM-RS,m≥2;
所述处理器920,还用于控制所述收发器940通过所述上行共享资源发送上行数据,所述上行数据包含UE的标识和所述DM-RS;
所述处理器920,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
所述处理器920,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
所述处理器920,还用于控制所述收发器940在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
在基于图9所示实施例提供的可选实施例中,所述处理器920,用于:
对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
在基于图9所示实施例提供的可选实施例中,所述下行资源的资源位置如下公式所示:
Figure PCTCN2015085475-appb-000082
Figure PCTCN2015085475-appb-000083
其中,
Figure PCTCN2015085475-appb-000084
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000085
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000086
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000087
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000088
Figure PCTCN2015085475-appb-000089
Figure PCTCN2015085475-appb-000090
用于标识对应所述PUSCH传输过程中第一个时隙的最低PRB的索引。
在基于图9所示实施例提供的可选实施例中,所述处理器920,用于计算 所述UE的偏移量为:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
请参考图10,其示出了本发明一个实施例提供的反馈信息发送和接收系统。该反馈信息发送和接收系统包括:eNB1010和UE1020;
eNB1010包括图1实施例和图2实施例中任一所提供的反馈信息发送装置,或,eNB1010包括图6实施例和图7实施例中任一所提供的eNB。
UE1020包括图3实施例、图4实施例和图5实施例中任一所提供的反馈信息接收装置,或,UE1020包括图8实施例和图9实施例中任一所提供的UE。
请参考图11,其示出了本发明一个实施例提供的反馈信息的发送方法的流程图。该反馈信息的发送方法包括:
步骤1101,eNB为m个UE分配相同的上行共享资源,m≥2。
在LTE中,上行共享资源是指PUSCH信道上的时频资源。多个UE可以共享同一块上行共享资源来传输数据。
通常,eNB在为m个UE分配相同的上行共享资源的同时,也会为m个UE分配相同的DM-RS。但是在本实施例中,即便eNB为m个UE分配不同的DM-RS,本实施例也能够正常实施,所以本实施例中对m个UE是否使用相同的DR-MS不作限定。
对应地,UE确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。具体地,UE接收eNB发送的有关上行共享资源的配置信息,根据接收到的配置信息确定UE的上行共享资源。
在其它实施例中,若eNB和UE事先约定了上行共享资源的配置方式,UE可以自行根据事先约定的配置方式确定上行共享资源。
步骤1102,UE通过eNB分配的上行共享资源发送上行数据,该上行数据包含UE的标识。
例如:eNB为10个UE分配相同的上行共享资源。在这10个UE中,若有3个UE同时需要发送各自的上行数据,需要发送上行数据的3个UE在该相同的上行共享资源上同时向eNB发送各自的上行数据。
同时,3个UE发送的上行数据中都包含对应的UE的标识。也即,每个UE的上行数据中包括:UE的标识和该UE发送的数据信息。UE还会在该上 行共享资源中发送与UE对应的DM-RS,以便eNB对上行数据进行解码。
步骤1103,eNB在上行共享资源上接收上行数据,上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个。
eNB通过该上行共享资源中的DM-RS进行信道估计,根据信道估计的结果从上行共享资源中解码得到上行数据,上行数据中包括有UE的标识和该UE发送的数据信息。
可选地,标识为UE的C-RNTI。
步骤1104,确定n个UE,其中,n个UE的上行数据被成功接收,m≥n≥1。
eNB根据成功接收到的包含UE的标识的上行数据,确定发送该上行数据的UE。
步骤1105,eNB生成反馈信息,反馈信息包含n个标识,不同标识表示不同UE。
eNB根据成功接收到的包含有UE的标识的上行数据,生成包含有对应标识的反馈信息。
步骤1106,eNB通过MAC PDU发送反馈信息。
步骤1107,UE通过MAC PDU接收反馈信息,反馈信息包含n个标识,n个标识中,不同标识表示不同UE;标识表示n个UE的上行数据被基站成功接收,m≥n≥1。
综上所述,本实施例提供的反馈信息的发送方法,通过eNB为m个UE分配相同的上行共享资源,m≥2;eNB在上行共享资源上接收UE发送的至少一个UE的上行数据,每个UE的上行数据包含各自对应的UE的标识,m≥n≥1;eNB根据成功接收到的n个上行数据生成反馈信息,该反馈信息包含n个标识;eNB通过MAC PDU发送反馈信息;解决了在现有技术中多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
需要说明的是,图11实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
本实施例中的反馈信息的格式示意图如图12所示。图12是包含n个标识 的反馈信息。
其中,若标识采用C-RNTI表示,C-RNTI i代表反馈信息中第i个标识,每个C-RNTI占用16比特,每一个字节Oct是8比特,所以反馈信息中每个标识的C-RNTI占两个字节。
请参考图13,其示出了本发明一个实施例提供的反馈信息的发送方法的流程图。该反馈信息的发送方法包括:
步骤1301,eNB为m个UE分配相同的上行共享资源,m≥2。
对应地,UE确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
步骤1302,UE通过eNB分配的上行共享资源发送上行数据,该上行数据包含UE的标识。
步骤1303,eNB在上行共享资源上接收上行数据,上行数据包含UE的标识,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个。
步骤1304,确定n个UE,其中,n个UE的上行数据被成功接收,m≥n≥1。
步骤1305,eNB生成反馈信息,反馈信息包含n个标识,不同标识表示不同UE。
步骤1301至步骤1305与步骤1101至1105相同,参考图11实施例所示。
步骤1306,eNB生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
eNB根据成功接收到的n个上行数据,生成包含n个标识的反馈信息,eNB通过n个标识的反馈信息生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
步骤1307,eNB通过指定标识将控制信道指示信息进行加扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
指定标识是与m个UE对应的标识。也即,指定标识是m个UE共用的标识。
可选地,指定标识是:CB-RNTI或TTI-RNTI。其中:
CB-RNTI是在基于竞争的上行数据传输方式中,由eNB预先分配的标识。
TTI-RNTI与步骤1302中的上行共享资源的资源位置有关。
可选地,TTI-RNTI=a+suf_id+b*feq_id,suf_id是上行共享资源对应的子帧号,feq_id是上行共享资源对应的物理资源块的最低位,a和b均为正整数。比如a=1,b=10。
控制信道指示信息用于指示PUSCH信道中的下行资源的资源位置,该控制信道指示信息指示的下行资源用于承载发送MAC PDU。eNB先通过PDCCH发送控制信道指示信息。也即,eNB通过指定标识对MAC PDU的控制信道指示信息进行加扰,将加扰后的控制信道指示信息通过PDCCH信道发送给UE。
步骤1308,eNB将控制信道指示信息发送给UE。
对应地,UE接收eNB发送的控制信道指示信息。
步骤1309,UE通过指定标识对控制信道指示信息进行解扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
UE通过指定标识在PDCCH信道上解扰得到控制信道指示信息所指示的下行资源的资源位置。只有拥有该指定标识的UE才能接收到该控制信道指示信息。
步骤1310,eNB通过控制信道指示信息所指示的下行资源发送MAC PDU。
eNB通过PDCCH中控制信道指示信息所指示的下行资源发送MAC PDU。
步骤1311,UE通过控制信道指示信息所指示的下行资源接收MAC PDU,MAC PDU包含反馈信息。
UE从MAC PDU中解码出反馈信息。
步骤1312,UE从反馈信息中读取出第i个标识,n≥i≥1,检测第i个标识是否为UE的标识。
UE从该反馈信息中读取出第i个标识,n≥i≥1。换句话说,UE每次从反馈信息中读取固定长度的信息,将该固定长度的信息认为是一个标识。可选地,固定长度是16个比特。
UE通过检测第i个标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1313;若第i个标识不是UE的标识,则进入步骤1314。
步骤1313,若第i个标识是UE的标识,则表示eNB成功接收上行数据。
步骤1314,若第i个标识不是UE的标识,则判断i是否等于n,若i=n,则进入步骤1315;若i不等于n,则令i=i+1,再次执行读取出反馈信息中第i 个标识的步骤。
也即,UE循环执行步骤1312,直至反馈信息中的所有标识全部读取完毕。
步骤1315,若反馈信息中包含的所有标识均不是UE的标识,则表示eNB未成功接收到上行数据,重新发送该上行数据。
综上所述,本实施例提供的反馈信息的发送方法,通过eNB为m个UE分配相同的上行共享资源,m≥2;eNB在上行共享资源上接收上行数据,每个UE的上行数据包含各自对应的UE的标识;eNB根据成功接收到的n个上行数据生成反馈信息,该反馈信息包含n个标识,m≥n≥1;eNB通过MAC PDU发送反馈信息;当UE在反馈信息中未发现对应UE的标识时,则eNB未成功接收到该上行数据,通过不同的方法重新发送该上行数据;解决了在现有技术中多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
需要说明的是,图13实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
UE通常还会存在剩余的待发送数据,在可选的实施例中,eNB还可以在反馈信息中同时对UE下发上行调度授权(英文:Up Link Grant,简称:UL Grant)。该上行调度授权用于指示UE将剩余的待发送数据以基于调度的上行数据发送方式进行发送。请参考如下实施例:
请参考图14,其示出了本发明另一个实施例提供的信息反馈方法的流程图。该信息反馈方法包括:
步骤1401,eNB为m个UE分配相同的上行共享资源,m≥2。
对应地,UE确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
步骤1402,UE通过eNB分配的上行共享资源发送上行数据,该上行数据包含UE的标识。
与上一实施例不同的是,每个UE发送的上行数据中,不仅包含UE的标识,还包含UE的缓存状态信息,缓存状态信息用于指示剩余的待发送数据的信息。
例如:eNB为10个UE分配相同的上行共享资源,在这10个UE中,若有6个UE同时需要发送上行数据,需要发送上行数据的6个UE均还存在有剩余的待发送数据的信息,则需要发送上行数据的6个UE同时在该上行共享资源上向eNB发送上行数据,该上行数据包括:UE的标识,UE的缓存状态信息和UE本次发送的数据信息。
可选为,UE的缓存状态信息包含有剩余的待发送数据量,比如1比特的数据量,或者仅提示缓存区中有剩余的待发送数据,而没有指示待发送数据的大小。
步骤1403,eNB在上行共享资源上接收上行数据,上行数据包含UE的标识和UE的缓存状态信息,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个,UE的缓存状态信息用于指示UE剩余的待发送数据的信息。
eNB通过该上行共享资源中的DM-RS进行信道估计,根据信道估计的结果从上行共享资源中解码得到上行数据,该上行数据包括:UE的标识,UE的缓存状态信息和UE本次发送的数据信息。
步骤1404,eNB解码得到UE的标识和UE的缓存状态信息。
eNB根据成功接收到的上行数据,解码得到上行数据中包含的UE的标识和UE的缓存状态信息。
步骤1405,eNB生成UE的上行调度授权,UE的上行调度授权是根据UE的缓存状态信息生成的。
对于每一个成功接收到的上行数据,eNB还根据该上行数据中包含的缓存状态信息,为对应的UE生成上行调度授权,也即UL Grant。
UL Grant至少包括:为该UE分配的上行传输资源的资源位置。可选包括:调制编码策略(英文:Modulation and Coding Scheme,简称:MCS),重复周期等。MCS用于指示UE在传输上行数据时采用何种调制编码方式。重复周期是指若本次上行传输调度采用半静态调度时,eNB分配给UE的上行传输资源的重复出现周期。半静态调度是eNB一次性将以周期性出现的上行传输资源分配给UE的调度方式。
需要说明的是,各个UE对应的UL Grant中携带的信息量可能不同,每个UL Grant所占用的比特数可选为固定的,比如每个UL Grant占用20比特。
每个UL Grant所占用的比特数可选为不固定的,比如每个UL Grant占用 10比特或20比特等。本实施例中,采用每个UL Grant占用20比特进行举例说明。也即,本实施例中对每个UL Grant占用的比特大小不作限定。
步骤1406,eNB生成反馈信息;该反馈信息包含n个标识和与标识对应的上行调度授权。
在反馈信息中,标识和与该标识对应的UL Grant成对出现。可选地,标识在前,与该标识对应的UL Grant紧随在该标识之后。
本实施例中的反馈信息的格式示意图如图15所示。图15是包含n个标识和与每个标识对应的UL Grant的反馈信息。
其中,若标识采用C-RNTI表示,则C-RNTI i代表反馈信息中第i个标识,每个C-RNTI占用16比特,每一个字节Oct是8比特,所以反馈信息中每个标识的C-RNTI占两个字节。
每个标识的C-RNTI之后,还紧随有与该标识对应的UL Grant,每个UL Grant占用20比特。其中,Padding是填充位。
步骤1407,eNB生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
eNB根据成功接收到的n个上行数据,生成包含n个标识的反馈信息,eNB通过n个标识的反馈信息生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
步骤1408,eNB通过指定标识将控制信道指示信息进行加扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
指定标识是与m个UE对应的标识。也即,指定标识是m个UE共用的标识。
可选地,指定标识是:CB-RNTI或者TTI-RNTI。其中:
CB-RNTI是在基于竞争的上行数据传输方式中,由eNB预先分配的标识。
TTI-RNTI与步骤1402中的上行共享资源的资源位置有关。
可选地,TTI-RNTI=a+suf_id+b*feq_id,suf_id是上行共享资源对应的子帧号,feq_id是上行共享资源对应的物理资源块的最低位,a和b均为正整数。比如a=1,b=10。
控制信道指示信息用于指示PUSCH信道中的下行资源的资源位置,该控制信道指示信息指示的下行资源用于承载发送MAC PDU。eNB先通过PDCCH信道向UE发送控制信道指示信息。也即,eNB通过指定标识对MAC PDU的 控制信道指示信息进行加扰,将加扰后的控制信道指示信息通过PDCCH信道发送给UE。
步骤1409,eNB将控制信道指示信息发送给UE。
对应地,UE接收eNB发送的控制信道指示信息。
步骤1410,UE通过指定标识对控制信道指示信息进行解扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
UE通过指定标识在PDCCH上解扰得到控制信道指示信息所指示的下行资源的资源位置。只有拥有该指定标识的UE才能接收到该控制信道指示信息。
步骤1411,eNB通过控制信道指示信息所指示的下行资源发送MAC PDU。
eNB通过PDCCH中控制信道指示信息所指示的下行资源发送MAC PDU。
步骤1412,UE通过控制信道指示信息所指示的下行资源接收MAC PDU,MAC PDU包含反馈信息。
UE从MAC PDU中解码出反馈信息。可选的,该反馈信息的格式如图15所示。
步骤1413,UE从反馈信息中读取出第i个标识和对应的上行调度授权,检测第i个标识是否为UE的标识。
UE从该反馈信息中读取出第i个标识和与第i个标识对应的UL Grant,n≥i≥1。换句话说,UE每次从反馈信息中读取固定长度的信息,将该固定长度的信息认为是“一个标识+一个UL Grant。可选地,固定长度是16+20=36个比特。
UE通过检测第i个UE的标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1414;若第i个标识不是UE的标识,则进入步骤1415。
步骤1414,若第i个标识是UE的标识,则表示eNB成功接收该上行数据,UE根据上行调度授权发送剩余的待发送数据。
若第i个标识是UE的标识,则与第i个标识对应的UL Grant即为UE对应的UL Grant。UE根据该UL Grant的指示,采用基于调度的上行数据发送方式,将缓冲区中剩余的待发送数据发送给eNB。
步骤1415,若第i个标识不是UE的标识,则判断i是否等于n,若i=n,则进入步骤1416;若i不等于n,则令i=i+1,再次执行读取出反馈信息中第i 个标识和与第i个标识对应的上行调度授权的步骤。
也即,UE循环执行步骤1412,直至反馈信息中的所有标识和UL Grant全部读取完毕。
步骤1416,若反馈信息中包含的所有标识均不是UE的标识,则表示eNB未成功接收到该上行数据,重新发送该上行数据。
若UE在上行共享资源上向eNB重新发送该上行数据的次数超过N次后,UE将不再利用上行共享资源发送该上行数据,可选为基于调度的方法传输该上行数据。
综上所述,与上一实施例相比,本实施例提供的反馈信息的发送方法,还通过UE在发送的上行数据中包含缓存状态信息,eNB根据缓存状态信息生成对应的UL Grant,并包含在反馈信息中下发给UE,使得反馈信息不仅仅用于是否成功接收上行数据的反馈,还同时实现了对UE的上行数据传输的调度。从而减少了eNB侧的信令支出,同时还加快了UE侧的上行数据传输速度。
需要说明的是,图14实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
在图14实施例中,以每个UE发送的上行数据中均包含“UE的标识+缓存状态信息”来举例说明。但在实际场景中,若UE不存在剩余的待发送数据,则该UE发送的上行数据中不包含缓存状态信息。也即,eNB接收到UE的上行数据中,可能存在一部分上行数据仅包含UE的标识,另一部分上行数据同时包含“UE的标识+缓存状态信息”的情况。针对此种情况,请参考如下实施例:
请参考图16,其示出了本发明另一个实施例提供的反馈信息的发送方法的流程图。该反馈信息的发送方法包括:
步骤1601,eNB为m个UE分配相同的上行共享资源,m≥2。
对应地,UE确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
步骤1601与步骤1101相同,参考图11实施例。
步骤1602,UE通过eNB分配的上行共享资源发送上行数据,该上行数据中包含UE的标识,或者,该上行数据中包含UE的标识和UE的缓存状态信息。
当UE的缓冲区中不存在剩余的待发送数据时,UE发送的上行数据包括:UE的标识和本次发送的数据信息。
当UE的缓冲区中存在剩余的待发送数据时,UE发送的上行数据包括:UE的标识,UE的缓存状态信息和本次发送的数据信息。
例如:eNB为10个UE分配相同的上行共享资源,在这10个UE中,若有6个UE同时需要发送上行数据,且这6个UE中的3个UE存在有剩余的待发送数据,则这6个UE同时在该上行共享资源上向eNB发送上行数据。其中3个UE发送的上行数据包括:UE的标识和UE本次发送的数据信息;另外3个UE发送的上行数据包括:UE的标识,UE的缓存状态信息和UE本次发送的数据信息。
步骤1603,eNB在上行共享资源上接收上行数据,n个上行数据包含n个UE的标识和与x个UE对应的缓存状态信息,n≥x≥1,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个,UE的缓存状态信息用于指示UE剩余的待发送数据的信息。
eNB通过该上行共享资源中的DM-RS进行信道估计,根据信道估计的结果从上行共享资源中解码得到UE的上行数据。
步骤1604,eNB解码得到n个UE的标识和与x个UE对应的缓存状态信息。
一个上行数据包括:UE的标识,UE的缓存状态信息和UE本次发送的数据信息,或者,一个上行数据包括:UE的标识和UE本次发送的数据信息。
由于部分UE不在上行数据中发送缓存状态信息,所以eNB成功接收到的n个上行数据中,包含n个UE的标识和与x个UE对应的缓存状态信息。
步骤1605,eNB生成与x个UE对应的上行调度授权,x个上行调度授权根据x个UE的缓存状态信息生成的。
对于包含缓存状态信息的UE的上行数据,eNB还根据该上行数据中包含的缓存状态信息,为对应的UE生成上行调度授权,也即UL Grant。
UL Grant至少包括:为该UE分配的上行传输资源的资源位置。可选包括:MCS,重复周期等。MCS用于指示UE在传输上行数据时采用何种调制编码方式。重复周期是指若本次上行传输调度采用半静态调度时,eNB分配给UE的上行传输资源的重复出现周期。半静态调度是eNB一次性将以周期性出现的上行传输资源分配给UE的调度方式。
需要说明的是,各个UE对应的UL Grant中携带的信息量可能不同,所以每个UL Grant所占用的比特数可选为固定的或不固定的。本实施例中,采用每个UL Grant占用20比特进行举例说明。
步骤1606,eNB生成反馈信息,该反馈信息包含有效比特位数、比特映射序列、n个标识和x个上行调度授权。
有效比特位数是指比特映射序列的有效位数,比特映射序列是指固定位数的比特序列。比特映射序列中的取值包括:第一取值和第二取值,其中,第一取值和第二取值分别是0或1中的一个。
当比特映射序列中第i个的比特为第一取值且有效时,代表反馈信息中的第i个标识后对应有固定位数的上行调度授权。
当比特映射序列中第i个的比特为第二取值且有效时,代表反馈信息中的第i个标识后未对应有固定位数的上行调度授权。
本实施例中的反馈信息的格式示意图如图17所示。
R是格式代表位,占用1比特,用于指示预留的比特。
UE Number是有效比特位数。可选为,UE Number占用3比特,用于标识比特映射序列ACK or Grant中从左到右的有效位数。本实施例中只是利用UE Number占用3比特进行举例说明,实施例中对UE Number占用的比特数不作限定。
比特映射序列ACK or Grant总是占用8比特,但该8比特并非总是有效,与反馈信息中第i个标识后是否具有对应的UL Grant相关。
当比特映射序列ACK or Grant中第i个的比特为1且有效时,代表反馈信息中的第i个标识后对应有固定位数(20比特)的UL Grant。
当比特映射序列ACK or Grant中第i个的比特为0且有效时,代表反馈信息中的第i个标识后未对应有固定位数的UL Grant。也即,仅仅是一个ACK信息,不包含UL Grant。
可选地,标识采用C-RNTI表示,C-RNTI i代表反馈信息中第i个标识,每个C-RNTI占用16比特,每一个字节Oct是8比特,所以反馈信息中每个标识的C-RNTI占两个字节。
步骤1607,eNB生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
eNB根据成功接收到的n个上行数据,生成包含n个标识和与x个UE对应的UL Grant的反馈信息,eNB通过n个标识的反馈信息生成对应的MAC  PDU,该MAC PDU包含反馈信息。
步骤1608,eNB通过指定标识将控制信道指示信息进行加扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
指定标识是与m个UE对应的标识。也即,指定标识是m个UE共用的标识。
可选地,指定标识是:CB-RNTI或者TTI-RNTI。其中:
CB-RNTI是在基于竞争的上行数据传输方式中,由eNB预先分配的标识。
TTI-RNTI与步骤1602中的上行共享资源的资源位置有关。
可选地,TTI-RNTI=a+suf_id+b*feq_id,suf_id是上行共享资源对应的子帧号,feq_id是上行共享资源对应的物理资源块的最低位,a和b均为正整数。比如a=1,b=10。
控制信道指示信息用于指示PUSCH信道中的下行资源的资源位置,该控制信道指示信息指示的下行资源用于承载发送MAC PDU。eNB先通过PDCCH信道发送控制信道指示信息。也即,eNB通过指定标识对MAC PDU的控制信道指示信息进行加扰,将加扰后的控制信道指示信息通过PDCCH信道发送给UE。
步骤1609,eNB将控制信道指示信息发送给UE。
对应地,UE接收eNB发送的控制信道指示信息。
步骤1610,UE通过指定标识对控制信道指示信息进行解扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
UE通过指定标识在PDCCH信道上解扰得到控制信道指示信息所指示的下行资源的资源位置。只有拥有该指定标识的UE才能接收到该控制信道指示信息。
步骤1611,eNB通过控制信道指示信息所指示的下行资源发送MAC PDU。
eNB通过PDCCH中控制信道指示信息所指示的下行资源发送MAC PDU。
步骤1612,UE通过控制信道指示信息所指示的下行资源接收MAC PDU,MAC PDU包含反馈信息。
UE从MAC PDU中解码出反馈信息。可选的,该反馈信息的格式如图17所示。
步骤1613,UE从反馈信息中读取有效比特位数和比特映射序列。
有效比特位数用于指示比特映射序列的有效位数;比特映射序列是固定位数的比特序列。
步骤1614,若比特映射序列中的第i个比特为第一取值且有效时,UE读取出第i个标识和与第i个标识对应的上行调度授权,检测第i个标识是否为UE的标识。
UE从该反馈信息中读取出第i个标识和与第i个标识对应的UL Grant,x≥i≥1。换句话说,UE每次从反馈信息中读取固定长度的信息,将该固定长度的信息认为是“一个标识+一个UL Grant”。可选地,固定长度是16+20=36个比特。
UE通过检测第i个标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1615;若第i个标识不是UE的标识,则进入步骤1616。
步骤1615,若第i个标识是UE的标识,则表示eNB成功接收该上行数据,根据上行调度授权发送剩余的待发送数据。
若第i个标识是UE的标识,则与第i个标识对应的UL Grant即为UE对应的UL Grant。UE根据该UL Grant的指示,采用基于调度的上行数据发送方式,将缓冲区中剩余的待发送数据发送给eNB。
步骤1616,若第i个标识不是UE的标识,则判断i是否等于有效比特位数,若i等于有效比特位数,则进入步骤1619;若i不等于有效比特位数,则令i=i+1,再次执行读取出有效比特位数和比特映射序列的步骤。
也即,UE循环执行步骤1613,直至反馈信息中的所有UE的标识全部读取完毕。
步骤1617,若比特映射序列中的第i个比特为第二取值且有效时,UE读取出第i个标识,检测第i个标识是否为UE的标识。
UE从该反馈信息中读取出第i个标识,n≥i≥1。换句话说,UE从反馈信息中读取固定长度的信息,将该固定长度的信息认为是“一个标识”。可选地,固定长度是16比特。
UE通过检测第i个标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1618;若第i个标识不是UE的标识,则进入步骤1616。
步骤1618,若第i个标识是UE的标识,则表示eNB成功接收该上行数据。
步骤1619,若反馈信息中包含的所有标识均不是UE的标识,则表示eNB未成功接收到上行数据,重新发送该上行数据。
综上所述,与上一实施例相比,本实施例提供的反馈信息的发送方法,通过一部分UE在上行数据中携带缓存状态信息,eNB根据缓存状态信息生成与该UE对应的UL Grant,并携带在反馈信息中下发给对应的UE,使得反馈信息实现了对一部分UE的上行数据传输的调度。
需要说明的是,图16实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
在图16实施例中,以一部分UE发送的上行数据中包含“UE的标识+缓存状态信息”来举例说明,且当前可用的上行资源中能够满足该部分UE所需要的上行调度授权的资源。但在实际场景中,若剩余的待发送数据量过大时,eNB当前可用的上行资源数量可能少于本次调度需要的上行资源数量。也即,可能存在eNB侧可用的上行资源数量不足的情形。针对此种情况,请参考如下实施例:
请参考图18,其示出了本发明另一个实施例提供的反馈信息的发送方法的流程图。该反馈信息的发送方法包括:
步骤1801,eNB为m个UE分配相同的上行共享资源,m≥2。
对应地,UE确定UE的上行共享资源,上行共享资源与m-1个其他UE的上行共享资源相同,m≥2。
步骤1802,UE通过eNB分配的上行共享资源发送上行数据,该上行数据中包含UE的标识,或者,该上行数据中包含UE的标识和UE的缓存状态信息。
步骤1803,eNB在上行共享资源上接收上行数据,n个上行数据包含n个UE的标识和与y个UE对应的缓存状态信息,n≥y≥1,不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个,UE的缓存状态信息用于指示UE剩余的待发送数据的信息。
步骤1804,eNB解码得到n个UE的标识和与x个UE对应的缓存状态信息。
步骤1801至步骤1804与步骤1601至1604相同,参考图16实施例所示。
步骤1805,eNB生成与x个UE各自对应的上行调度授权,y>x≥1,x个上行调度授权是指当前可用的上行资源,x个上行调度授权根据x个UE的缓存状态信息生成的。
例如:eNB为10个UE分配相同的上行共享资源,有8个UE通过该上行共享资源同时向eNB发送了上行数据,其中,有6个UE发送的上行数据中包含UE的标识、UE的缓存状态信息和UE本次发送的数据信息,2个UE发送的上行数据中只包含UE的标识和UE本次发送的数据信息。但是,eNB当前可用的上行资源数量只能满足其中4个UE发送的缓存状态信息,则eNB根据当前可用的上行资源和缓存状态信息生成8个UE的标识和与4个UE对应的UL Grant。
UL Grant至少包括:为该UE分配的上行传输资源。可选包括:MCS,重复周期等。MCS用于指示UE在传输上行数据时采用何种调制编码方式。重复周期是指若本次上行传输调度采用半静态调度时,eNB分配给UE的上行传输资源的重复出现周期。半静态调度是eNB一次性将以周期性出现的上行传输资源分配给UE的调度方式。
需要说明的是,虽然各个UE对应的UL Grant中携带的信息量可能不同,但是每个UL Grant所占用的比特数是固定的。可选地,每个UL Grant占用20个比特位。
步骤1806,eNB生成反馈信息,该反馈信息包含有效比特位数、比特映射序列、n个标识和x个上行调度授权。
当比特映射序列中第i个的比特为第一取值且有效时,代表反馈信息中的第i个标识后对应有固定位数的上行调度授权。
当比特映射序列中第i个的比特为第二取值且有效时,代表反馈信息中的第i个标识后未对应有固定位数的上行调度授权。
步骤1807,eNB生成UE对应的MAC PDU,该MAC PDU包含反馈信息。
步骤1808,eNB通过指定标识将控制信道指示信息进行加扰。
指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
步骤1809,eNB将控制信道指示信息发送给UE。
对应地,UE接收eNB发送的控制信道指示信息。
步骤1810,UE通过指定标识对控制信道指示信息进行解扰,指定标识是m个UE所对应的标识,控制信道指示信息用于指示承载MAC PDU的下行资源的资源位置。
步骤1811,eNB通过控制信道指示信息所指示的下行资源发送MAC PDU。
步骤1812,UE通过控制信道指示信息所指示的下行资源接收MAC PDU,MAC PDU包含反馈信息。
步骤1813,UE从反馈信息中读取有效比特位数和比特映射序列。
有效比特位数用于指示比特映射序列的有效位数;比特映射序列是固定位数的比特序列。
步骤1814,若比特映射序列中的第i个比特为第一取值且有效时,UE读取出第i个标识和与第i个标识对应的上行调度授权,检测第i个标识是否为UE的标识。
UE通过检测第i个标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1815;若第i个标识不是UE的标识,则进入步骤1817。
步骤1815,若第i个标识是UE的标识,则表示eNB成功接收该上行数据,UE根据上行调度授权发送剩余的待发送数据。
步骤1816,若第i个标识不是UE的标识,则判断i是否等于有效比特位数,若i等于有效比特位数,则进入步骤1819;若i不等于有效比特位数,则令i=i+1,再次执行读取出有效比特位数和比特映射序列的步骤。
也即,UE循环执行步骤1813,直至反馈信息中的所有标识全部读取完毕。
步骤1817,若比特映射序列中的第i个比特为第二取值且有效时,UE读取出第i个标识,检测第i个标识是否为UE的标识。
UE通过检测第i个标识是否为UE的标识。
若第i个标识是UE的标识,则进入步骤1818;若第i个标识不是UE的标识,则进入步骤1817。
步骤1806至步骤1817与步骤1606至1617相同,参考图16实施例所示。
步骤1818,若第i个标识是UE的标识,则表示eNB成功接收该上行数据,若该UE中存在剩余的待发送数据,则表示UE继续等待eNB再次分配上行调度授权。
步骤1819,若反馈信息中包含的所有标识均不是UE的标识,则表示eNB 未成功接收到该上行数据,重新发送该上行数据。
综上所述,与上一实施例相比,本实施例提供的反馈信息的发送方法,根据当前可用的上行资源和缓存状态信息为部分对应的UE生成与UE对应的UL Grant,并携带在反馈信息中下发给对应UE,对未分配UL Grant的另一部分UE先发送对应UE的标识,使其等待eNB再次分配UL Grant。
需要说明的是,图18实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
上述实施例中都是eNB通过MAC PDU发送反馈信息,在实际场景中,eNB也可以通过其他的途径将生成的反馈信息发送给UE,具体请参考如下实施例:
请参考图19,其示出了本发明另一个实施例提供的反馈信息的发送方法的流程图。该反馈信息的发送方法包括:
步骤1901,为m个UE分配相同的上行共享资源和相同的DM-RS,m≥2。
在LTE中,上行共享资源是指PUSCH信道上的时频资源。多个UE可以共享同一块上行共享资源来传输数据。
DM-RS用于在PUSCH信道上对UE的传输数据进行信道估计。
对应的,UE确定UE的上行共享资源和DM-RS。具体地,UE接收eNB发送的有关上行共享资源的配置信息和DM-RS,根据接收到的配置信息和DM-RS确定UE的上行共享资源和DM-RS。
在其它实施例中,若eNB和UE事先约定了上行共享资源的配置方式,UE可以自行根据事先约定的配置方式确定上行共享资源。
步骤1902,UE通过上行共享资源发送上行数据,上行数据包含UE的标识和DM-RS。
例如:eNB为10个UE分配相同的上行共享资源。在这10个UE中,若有3个UE同时需要发送上行数据,需要发送上行数据的3个UE在该相同的上行共享资源上向eNB发送各自的上行数据。该上行数据包含对应的UE的标识和DM-RS。也即,每个上行数据中包括:UE的标识、DM-RS和该UE发送的数据信息。
对应的,eNB接收由UE发送的包含UE的标识和DM-RS的上行数据。
步骤1903,eNB通过DM-RS接收上行数据,上行数据包含UE的标识, 不同的UE的标识代表不同的UE,UE的标识代表的UE为m个UE中的至少一个。
eNB通过该上行共享资源中的DM-RS进行信道估计,根据信道估计的结果从上行共享资源中解码得到上行数据,上行数据中包括有UE的标识和DM-RS。
步骤1904,eNB计算约定反馈位置,约定反馈位置根据上行共享资源的资源位置和DM-RS得到。
在LTE中,约定反馈位置是eNB根据UE通过在PUSCH信道上的时频资源的资源位置和DM-RS共同计算得到在PHICH信道上的时频资源的资源位置。
具体计算公式如下:
Figure PCTCN2015085475-appb-000091
Figure PCTCN2015085475-appb-000092
其中,
Figure PCTCN2015085475-appb-000093
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000094
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000095
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000096
是用于所述PHICH调制的扩展因子;
其中:
Figure PCTCN2015085475-appb-000097
Figure PCTCN2015085475-appb-000098
Figure PCTCN2015085475-appb-000099
用于标识对应所述PUSCH传输过程中第一个时隙的最低PRB的索引。
对应的,UE根据上行共享资源的资源位置和DM-RS计算得到约定反馈位置
Figure PCTCN2015085475-appb-000100
步骤1905,eNB计算UE的偏移量,UE的偏移量根据UE的标识得到。
可选为,对UE的标识进行预设运算操作,将预设运算操作的结果作为UE对应的偏移量
本实施例中采用取模的方法计算每个UE对应的偏移量,具体计算公式如下:
f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
对UE的标识进行运算操作,将运算操作的结果作为UE对应的偏移量;运算操作可选为:取模运算或线性运算或三角函数运算等,只需该运算操作能够满足针对不同的UE的标识能够计算出不同的偏移量即可。所以本实施例中对运算操作的类型不作限定。
对应的,UE根据UE的标识计算得到与UE对应的偏移量,该偏移量是UE通过对UE标识进行取模计算得到的。
步骤1906,eNB在下行资源的资源位置上发送确认信息ACK,下行资源的资源位置是约定反馈位置和偏移量两者结合所指示的。
下行资源位置可选为,约定反馈位置和偏移量两者和。
也即:
Figure PCTCN2015085475-appb-000101
Figure PCTCN2015085475-appb-000102
其中,
Figure PCTCN2015085475-appb-000103
用于标识所述下行资源在PHICH中所在组的组号;
Figure PCTCN2015085475-appb-000104
用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识PDCCH最近一次向所述UE指示的DM-RS序列;
Figure PCTCN2015085475-appb-000105
用于所述PHICH中组的个数;
Figure PCTCN2015085475-appb-000106
是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
其中:
Figure PCTCN2015085475-appb-000107
Figure PCTCN2015085475-appb-000108
Figure PCTCN2015085475-appb-000109
用于标识对应所述PUSCH传输过程中第一个时隙的最低PRB的索引。
可选地,偏移量的计算公式如下:
f(C-RNTI)=(C-RNTI)%M,其中,M为正整数
步骤1907,UE在下行资源的资源位置上接收确认信息ACK;下行资源的资源位置是约定反馈位置和偏移量两者结合所指示的。
步骤1908,若UE未收到由eNB发送的确认信息ACK时,则表示eNB未成功接收到该上行数据,重新发送该上行数据。
综上所述,通过eNB为m个UE分配相同的上行共享资源和DM-RS;UE通过eNB分配的上行共享资源发送上行数据,该上行数据包含UE的标识和DM-RS;eNB通过DM-RS在上行共享资源上接收上行数据;eNB根据上行共享资源的资源位置和DM-RS计算得到约定反馈位置,根据每个UE的标识计算得到与UE对应的偏移量,eNB通过在约定反馈位置和偏移量两者的结合所指示的下行资源上发送确认信息ACK;解决了在现有技术中多个UE使用相同的上行共享资源和DM-RS发送上行数据时,导致eNB无法根据约定的下行资源向不同的UE正确发送反馈信息的问题;达到了使每个UE都能够明确自己发送的上行数据是否发送成功的效果。
需要说明的是,图19实施例中有关eNB侧的步骤可以单独实现成为eNB一侧的反馈信息的发送方法,有关UE侧的步骤可以单独实现成为UE一侧的反馈信息的接收方法。
图13实施例中步骤1315、图14实施例中的步骤1416、图16实施例中的步骤1619、图18实施例中的1819以及图19实施例中的步骤1908都提出了UE重新发送上行数据的步骤。为了减少UE在重新发送上行数据时再次发生竞争碰撞的可能性,上述有关重新发送上行数据的步骤均可以替代实现成为如下的步骤2002至步骤2005:
步骤2001,eNB预先为m个UE分配各自对应的第二随机数。
第二随机数是UE在反馈信息中未包含UE的标识时使用,第二随机数是在eNB通过MAC PDU向UE发送反馈之前预先分配给UE。
步骤2002,UE在存在最近一个可用的上行共享资源时,随机生成第一随机数。
最近一个可用的上行共享资源是在UE接收到的反馈信息未发现对应与UE标识后出现的第一个上行共享资源。第一随机数是UE随机生成的,用于判断UE是否在最近一个可用的上行共享资源上重新发送上行数据。
步骤2003,UE读取缓存中的第二随机数,第二随机数是eNB预先分配的。
通过比较第一随机数与第二随机数之间的大小,判断UE是否在最近一个可用的上行共享资源上重新发送上行数据。
步骤2004,判断第一随机数和第二随机数的大小关系是否满足预设条件;
步骤2005,若第一随机数和第二随机数的大小关系满足预设条件,则在最 近一个可用的上行共享资源上重新发送UE的上行数据。
步骤2006,若第一随机数和第二随机数的大小关系不满足预设条件,则重新执行在存在最近一个可用的上行共享资源时,随机生成第一随机数的步骤。
若第一随机数和第二随机数的大小关系不满足预设条件,则重新执行步骤2002。
预设条件可选为第一随机数大于第二随机数或者第一随机数小于第二随机数,本实施例中对预设条件不作限定。
若UE在上行共享资源上重新发送该上行数据的次数超过N次后,UE将不再利用上行共享资源发送该上行数据,可选为基于调度的方法传输该上行数据。
综上所述,本实施例通过eNB为UE分配各自对应的第二随机数,在存在最近一个可用的上行共享资源时,UE随机生成的第一随机数,通过比较第一随机数与第二随机数之间的大小,判断UE是否在最近一个可用的上行共享资源上重新发送上行数据,减少了多个UE在最近一个可用的上行共享资源上重新发送上行数据时再次发生竞争碰撞的可能性。
作为与图20实施例不同的实现方式,图13实施例中步骤1315、图14实施例中的步骤1416、图16实施例中的步骤1619、图18实施例中的1819以及图19实施例中的步骤1908还可以替代实现为如下步骤2101和步骤2102。
步骤2101,UE随机生成一个随机退避时间。
随机退避时间是在UE接收到的反馈信息未发现对应与本UE标识后随机生成的。
步骤2102,UE在等待随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
最近一个可用的上行共享资源是在UE接收到的反馈信息未发现对应与本UE的标识后随机生成一个随机退避时间,当等待随机退避时间后出现的第一个上行共享资源。
若UE在上行共享资源上重新发送该上行数据的次数超过N次后,UE将不再利用上行共享资源发送该上行数据,可选为基于调度的方法传输该上行数据。
综上所述,本实施例通过在UE接收到的反馈信息未发现对应与UE标识 后随机生成一个随机退避时间,UE在等待随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据,减少了多个UE在最近一个可用的上行共享资源上重新发送上行数据时再次发生竞争碰撞的可能性。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (78)

  1. 一种反馈信息的发送装置,其特征在于,所述装置包括:
    处理模块,用于为m个用户设备UE分配相同的上行共享资源,m≥2;
    接收模块,用于在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
    所述处理模块,还用于确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1;
    所述处理模块,还用于生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
    发送模块,用于通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
  2. 根据权利要求1所述的装置,其特征在于,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示所述UE剩余的待发送数据的信息;
    所述处理模块,还用于解码得到所述UE的标识和所述UE的缓存状态信息;
    所述处理模块,还用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
    所述处理模块,还用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
  3. 根据权利要求1所述的装置,其特征在于,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理模块,还用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
    所述处理模块,还用于生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    所述处理模块,还用于生成所述反馈信息;所述反馈信息包含n个所述标 识和与x个所述UE对应的所述上行调度授权。
  4. 根据权利要求1所述的装置,其特征在于,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理模块,还用于解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息;
    所述处理模块,还用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    所述处理模块,还用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
  5. 根据权利要求3或4所述的装置,其特征在于,
    所述处理模块,还用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
    所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
    当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述标识后对应有固定位数的所述上行调度授权;
    当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述标识后未对应有固定位数的所述上行调度授权;
    所述第一取值和所述第二取值分别为0和1中的一个。
  6. 根据权利要求1至5任一所述的装置,其特征在于,
    所述处理模块,还用于生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
    所述发送模块,还用于通过指定标识将控制信道指示信息进行加扰;所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    所述发送模块,还用于将所述控制信道指示信息发送给所述UE;
    所述发送模块,还用于通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
  7. 根据权利要求6所述的装置,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
  8. 根据权利要求1至7任一所述的方法,其特征在于,
    所述处理模块,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含所述UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
  9. 一种反馈信息的发送装置,其特征在于,所述装置,包括:
    处理模块,用于为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
    接收模块,用于通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
    所述处理模块,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
    所述处理模块,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
    发送模块,用于在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
  10. 根据权利要求9所述的装置,其特征在于,
    所述处理模块,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  11. 根据权利要求10所述的装置,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100001
    Figure PCTCN2015085475-appb-100002
    其中,
    Figure PCTCN2015085475-appb-100003
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100004
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
    Figure PCTCN2015085475-appb-100005
    用于所述PHICH中组的个数;是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100007
    Figure PCTCN2015085475-appb-100008
    Figure PCTCN2015085475-appb-100009
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
  12. 根据权利要求11所述的装置,其特征在于,
    所述处理模块,用于计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
  13. 一种反馈信息的接收装置,其特征在于,所述装置包括:
    处理模块,用于确定用户设备UE的上行共享资源;
    发送模块,用于通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
    接收模块,用于通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE;所述标识表示所述n个UE的上行数据被eNB成功接收,m≥n≥1。
  14. 根据权利要求13所述的装置,其特征在于,所述装置,还包括:
    所述处理模块,还用于生成上行数据,所述上行数据包含所述UE的标识和 缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述发送模块,用于将所述上行数据发送给所述eNB。
  15. 根据权利要求13所述的装置,其特征在于,所述装置,还包括:
    所述处理模块,还用于从所述反馈信息中读取出第i个标识,n≥i≥1;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
  16. 根据权利要求14所述的装置,其特征在于,所述装置,还包括:
    所述处理模块,还用于从所述反馈信息中读取出第i个标识和对应的所述上行调度授权,检测所述第i个标识是否为所述UE的标识,n≥i≥1;
    所述发送模块,还用于在所述第i个标识是所述UE的标识时,根据所述上行调度授权发送剩余的待发送数据。
  17. 根据权利要求13或14所述的装置,其特征在于,所述装置,还包括:
    所述处理模块,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;检测所述第i个标识是否为所述UE的标识;
    所述发送模块,还用于在所述第i个标识是所述UE的标识时,根据所述上行调度授权发送剩余的待发送数据;
    所述处理模块,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
  18. 根据权利要求15至17任一所述的装置,其特征在于,
    所述发送模块,还用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,重新发送上行数据。
  19. 根据权利要求18所述的装置,其特征在于,所述装置还包括:生成模块和检测模块;
    所述处理模块,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
    所述处理模块,用于读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
    所述发送模块,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,在所述最近一个可用的上行共享资源上重新发送上行数据;
    所述处理模块,还用于在所述第一随机数和所述第二随机数的大小关系不满足预设条件时,重新生成第一随机数。
  20. 根据权利要求18所述的装置,其特征在于,所述装置还包括:生成模块;
    所述处理模块,用于随机生成一个随机退避时间;
    所述发送模块,用于在等待所述随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
  21. 根据权利要求13至16任一所述的装置,其特征在于,
    所述接收模块,用于接收所述控制信道指示信息;
    所述接收模块,还用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    所述接收模块,还用于通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
  22. 根据权利要求21所述的装置,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
  23. 一种反馈信息的接收装置,其特征在于,所述装置包括:
    处理模块,用于确定用户设备UE的上行共享资源和解调参考信号DM-RS,;
    发送模块,用于通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识和所述DM-RS;
    所述处理模块,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
    所述处理模块,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
    接收模块,用于在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
  24. 根据权利要求23所述的装置,其特征在于,
    所述处理模块,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  25. 根据权利要求24所述的装置,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100010
    Figure PCTCN2015085475-appb-100011
    其中,
    Figure PCTCN2015085475-appb-100012
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100013
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
    Figure PCTCN2015085475-appb-100014
    用于所述PHICH中组的个数;
    Figure PCTCN2015085475-appb-100015
    是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100016
    Figure PCTCN2015085475-appb-100017
    Figure PCTCN2015085475-appb-100018
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源 块PRB的索引。
  26. 根据权利要求25所述的装置,其特征在于,
    所述处理模块,用于计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
  27. 一种基站,其特征在于,所述基站包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于为m个用户设备UE分配相同的上行共享资源,m≥2;
    所述处理器,还用于控制所述收发器在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
    所述处理器,还用于确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1;
    所述处理器,还用于生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
    所述处理器,还用于控制所述收发器通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
  28. 根据权利要求27所述的基站,其特征在于,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理器,用于解码得到所述UE的标识和所述UE的缓存状态信息;
    所述处理器,用于生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
    所述处理器,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
  29. 根据权利要求27所述的基站,其特征在于,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理器,用于解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
    所述处理器,用于生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    所述处理器,用于生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
  30. 根据权利要求27所述的基站,其特征在于,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理器,用于解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息;
    所述处理器,用于生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度授权是指当前可用的上行资源;所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    所述处理器,用于生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
  31. 根据权利要求29或30所述的基站,其特征在于,
    所述处理器,用于生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
    所述有效比特位数用于指示所述比特映射序列的有效位数;
    所述比特映射序列是固定位数的比特序列;
    当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
    当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
    所述第一取值和所述第二取值分别为0和1中的一个。
  32. 根据权利要求27至31任一所述的基站,其特征在于,
    所述处理器,用于生成所述UE对应的MAC PDU,所述MAC PDU包含所 述反馈信息;
    所述处理器,用于通过指定标识将控制信道指示信息进行加扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    所述处理器,用于控制所述收发器将所述控制信道指示信息发送给所述UE;
    所述处理器,用于控制所述收发器通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
  33. 根据权利要求32所述的基站,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
  34. 根据权利要求27至33任一所述的基站,其特征在于,
    所述处理器,还用于为m个所述UE分配各自对应的第二随机数,所述第二随机数是在所述反馈信息中未包含本UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
  35. 一种基站,其特征在于,所述基站包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
    所述处理器,还用于控制所述收发器通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
    所述处理器,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
    所述处理器,还用于计算所述UE的偏移量,所述UE的偏移量根据所述 UE的标识得到;
    所述处理器,还用于控制所述收发器在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
  36. 根据权利要求35所述的基站,其特征在于,
    所述处理器,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  37. 根据权利要求36所述的基站,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100019
    Figure PCTCN2015085475-appb-100020
    其中,
    Figure PCTCN2015085475-appb-100021
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100022
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
    Figure PCTCN2015085475-appb-100023
    用于所述PHICH中组的个数;
    Figure PCTCN2015085475-appb-100024
    是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100025
    Figure PCTCN2015085475-appb-100026
    Figure PCTCN2015085475-appb-100027
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
  38. 根据权利要求37所述的基站,其特征在于,
    所述处理器,用于计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
  39. 一种UE,其特征在于,所述UE包括:处理器、存储器和收发器,其 中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于确定用户设备UE的上行共享资源;
    所述处理器,还用于控制所述收发器通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
    所述处理器,还用于控制所述收发器通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE,所述标识表示所述n个UE的上行数据被eNB成功接收,n≥1。
  40. 根据权利要求39所述的UE,其特征在于,
    所述处理器,用于生成所述上行数据;所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述处理器,还用于控制所述收发器将所述上行数据发送给所述eNB。
  41. 根据权利要求39所述的UE,其特征在于,
    所述处理器,还用于从所述反馈信息中读取出第i个标识,n≥i≥1;
    所述处理器,还用于检测所述第i个标识是否为所述UE的标识;
    若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
  42. 根据权利要求40所述的UE,其特征在于,
    所述处理器,还用于从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;
    所述处理器,还用于检测所述第i个标识是否为所述UE的标识,n≥i≥1;
    所述处理器,还用于在所述第i个标识是所述UE的标识时,控制所述收发器根据所述上行调度授权发送剩余的待发送数据。
  43. 根据权利要求39或40所述的UE,其特征在于,
    所述处理器,还用于从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
    所述处理器,还用于在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;
    所述处理器,还用于检测所述第i个标识是否为所述UE的标识;
    所述处理器,还用于在所述第i个标识是所述UE的标识时,控制所述收发器根据所述上行调度授权发送剩余的待发送数据;
    所述处理器,还用于在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;
    所述处理器,还用于检测所述第i个标识是否为所述UE的标识;若所述第i个UE的标识是所述UE的标识时,表示所述eNB成功接收所述UE的上行数据。
  44. 根据权利要求42至43任一所述的UE,其特征在于,
    所述处理器,用于在所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收所述UE的上行数据,控制所述收发器重新发送上行数据。
  45. 根据权利要求44所述的UE,其特征在于,
    所述处理器,用于在存在最近一个可用的上行共享资源时,随机生成第一随机数;
    所述处理器,用于读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;
    所述处理器,用于判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
    所述处理器,用于在所述第一随机数和所述第二随机数的大小关系满足预设条件时,控制所述收发器在所述最近一个可用的上行共享资源上重新发送上行数据;
    所述处理器,用于在所述第一随机数和所述第二随机数的大小关系不满足预设条件时,重新执行所述在存在最近一个可用的上行共享资源时,随机生成第一随机数。
  46. 根据权利要求44所述的UE,其特征在于,
    所述处理器,用于随机生成一个随机退避时间;
    所述处理器,用于在等待所述随机退避时间之后,控制所述收发器在最近一个可用的上行共享资源上重新发送上行数据。
  47. 根据权利要求39至42任一所述的UE,其特征在于,
    所述处理器,用于控制所述收发器接收所述控制信道指示信息;
    所述处理器,用于通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    所述处理器,用于控制所述收发器通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
  48. 根据权利要求47所述的UE,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
  49. 一种UE,其特征在于,所述UE包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于确定用户设备UE的上行共享资源和解调参考信号DM-RS;
    所述处理器,还用于控制所述收发器通过所述上行共享资源发送上行数据,所述上行数据包含UE的标识和所述DM-RS;
    所述处理器,还用于计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
    所述处理器,还用于计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
    所述处理器,还用于控制所述收发器在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合 所指示的。
  50. 根据权利要求49所述的UE,其特征在于,所述处理器,用于对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  51. 根据权利要求50所述的UE,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100028
    Figure PCTCN2015085475-appb-100029
    其中,
    Figure PCTCN2015085475-appb-100030
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100031
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
    Figure PCTCN2015085475-appb-100032
    用于所述PHICH中组的个数;
    Figure PCTCN2015085475-appb-100033
    是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100034
    Figure PCTCN2015085475-appb-100035
    Figure PCTCN2015085475-appb-100036
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
  52. 根据权利要求51所述的UE,其特征在于,
    所述处理器,用于计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
  53. 一种反馈信息的发送方法,其特征在于,所述方法包括:
    为m个用户设备UE分配相同的上行共享资源,m≥2;
    在所述上行共享资源上接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的 至少一个;
    包含确定n个UE,其中,所述n个UE的上行数据被成功接收,m≥n≥1;
    生成反馈信息,所述反馈信息包含n个标识,不同标识表示不同UE;
    通过介质访问控制协议数据单元MAC PDU发送所述反馈信息。
  54. 根据权利要求53所述的方法,其特征在于,所述上行数据还包含UE的缓存状态信息,所述UE的缓存状态信息用于指示所述UE剩余的待发送数据的信息;
    所述生成反馈信息,包括:
    解码得到所述UE的标识和所述UE的缓存状态信息;
    生成所述UE的上行调度授权,所述UE的上行调度授权是根据所述UE的缓存状态信息生成的;
    生成所述反馈信息;所述反馈信息包含n个所述标识和与所述UE对应的所述上行调度授权。
  55. 根据权利要求53所述的方法,其特征在于,存在x个所述上行数据包含所述UE的缓存状态信息,n>x≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    所述生成反馈信息,包括:
    解码得到n个所述UE的标识和与x个所述UE对应的所述缓存状态信息;
    生成与x个所述UE各自对应的上行调度授权,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    生成所述反馈信息;所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
  56. 根据权利要求53所述的方法,其特征在于,存在y个所述上行数据包含所述UE的缓存状态信息,n≥y≥1,所述UE的缓存状态信息用于指示剩余的待发送数据的信息
    所述生成反馈信息,包括:
    解码得到n个所述UE的标识和与y个所述UE对应的所述缓存状态信息;
    生成与x个所述UE各自对应的上行调度授权,y>x≥1,所述x个上行调度 授权是指当前可用的上行资源,所述x个上行调度授权根据x个所述UE的缓存状态信息生成的;
    生成所述反馈信息,所述反馈信息包含n个所述标识和与x个所述UE对应的所述上行调度授权。
  57. 根据权利要求55或56所述的方法,其特征在于,所述生成所述反馈信息,包括:
    生成所述反馈信息,所述反馈信息包含有效比特位数、比特映射序列、n个所述标识和x个所述上行调度授权;
    所述有效比特位数用于指示所述比特映射序列的有效位数;
    所述比特映射序列是固定位数的比特序列;
    当所述比特映射序列中第i个的比特为第一取值且有效时,代表所述反馈信息中的第i个所述UE的标识后对应有固定位数的所述上行调度授权;
    当所述比特映射序列中第i个的比特为第二取值且有效时,代表所述反馈信息中的第i个所述UE的标识后未对应有固定位数的所述上行调度授权;
    所述第一取值和所述第二取值分别为0和1中的一个。
  58. 根据权利要求53至57任一所述的方法,其特征在于,所述通过MAC PDU发送所述反馈信息,包括:
    生成所述UE对应的MAC PDU,所述MAC PDU包含所述反馈信息;
    通过指定标识将控制信道指示信息进行加扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    将所述控制信道指示信息发送给所述UE;
    通过所述控制信道指示信息所指示的下行资源发送所述MAC PDU。
  59. 根据权利要求58所述的方法,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是根据所述上行共享资源的资源位置生成的。
  60. 根据权利要求53至59任一所述的方法,其特征在于,所述通过MAC PDU发送所述反馈信息之前,还包括:
    为m个所述UE分配各自对应的第二随机数,所述第二随机数是所述UE在所述反馈信息中未包含所述UE的标识时,判断是否在最近一个可用的所述上行共享资源上重新发送上行数据时所使用的随机数。
  61. 一种反馈信息的发送方法,其特征在于,所述方法包括:
    为m个用户设备UE分配相同的上行共享资源和相同的解调参考信号DM-RS,m≥2;
    通过所述DM-RS接收上行数据,所述上行数据包含UE的标识,不同的UE的标识代表不同的UE,所述UE的标识代表的UE为所述m个UE中的至少一个;
    计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置和所述DM-RS得到;
    计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
    在下行资源的资源位置上发送确认信息ACK,所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
  62. 根据权利要求61所述的方法,其特征在于,所述计算所述UE的偏移量,包括:
    对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  63. 根据权利要求62所述的方法,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100037
    Figure PCTCN2015085475-appb-100038
    其中,
    Figure PCTCN2015085475-appb-100039
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100040
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的 DM-RS序列;
    Figure PCTCN2015085475-appb-100041
    用于所述PHICH中组的个数;
    Figure PCTCN2015085475-appb-100042
    是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100043
    Figure PCTCN2015085475-appb-100044
    Figure PCTCN2015085475-appb-100045
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
  64. 根据权利要求63所述的方法,其特征在于,所述对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量,包括:
    计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
  65. 一种反馈信息的接收方法,其特征在于,所述方法包括:
    确定用户设备UE的上行共享资源;
    通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识;
    通过介质访问控制协议数据单元MAC PDU接收反馈信息,所述反馈信息包含n个标识,所述n个标识中,不同标识表示不同UE;所述标识表示所述n个UE的上行数据被基站成功接收。
  66. 根据权利要求65所述的方法,其特征在于,所述通过所述上行共享资源发送上行数据,包括:
    生成上行数据,所述上行数据包含所述UE的标识和缓存状态信息;所述UE的缓存状态信息用于指示剩余的待发送数据的信息;
    将所述上行数据发送给所述eNB。
  67. 根据权利要求65所述的方法,其特征在于,所述方法,还包括:
    从所述反馈信息中读取出第i个标识,n≥i≥1;
    检测所述第i个标识是否为所述UE的标识;
    若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
  68. 根据权利要求66所述的方法,其特征在于,所述方法,还包括:
    从所述反馈信息中读取出第i个标识和对应的所述上行调度授权;
    检测所述第i个标识是否为所述UE的标识,n≥i≥1;
    若所述第i个标识是所述UE的标识,则根据所述上行调度授权发送剩余的待发送数据。
  69. 根据权利要求65或66所述的方法,其特征在于,所述方法还包括:
    从所述反馈信息中读取有效比特位数和比特映射序列;所述有效比特位数用于指示所述比特映射序列的有效位数;所述比特映射序列是固定位数的比特序列;
    在所述比特映射序列中的第i个比特为第一取值且有效时,从所述反馈信息中读取出第i个所述标识和对应的上行调度授权;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则根据所述上行调度授权发送剩余的待发送数据;
    在所述比特映射序列中的第i个比特为第二取值且有效时,从所述反馈信息中读取出第i个所述标识;检测所述第i个标识是否为所述UE的标识;若所述第i个标识是所述UE的标识,则表示所述eNB成功接收所述UE的上行数据。
  70. 根据权利要求67至69任一所述的方法,其特征在于,所述检测所述第i个标识是否为所述UE的标识之后,还包括:
    若所述反馈信息中包含的所有标识均不是所述UE的标识时,表示所述eNB未成功接收上行数据,重新发送上行数据。
  71. 根据权利要求70所述的方法,其特征在于,所述重新发送上行数据,包括:
    在存在最近一个可用的上行共享资源时,随机生成第一随机数;
    读取缓存中的第二随机数,所述第二随机数是所述eNB预先分配的;
    判断所述第一随机数和所述第二随机数的大小关系是否满足预设条件;
    若所述第一随机数和所述第二随机数的大小关系满足预设条件,则在所述最近一个可用的上行共享资源上重新发送上行数据;
    若所述第一随机数和所述第二随机数的大小关系不满足预设条件,则重新执行所述在存在最近一个可用的上行共享资源时,随机生成第一随机数的步骤。
  72. 根据权利要求70所述的方法,其特征在于,所述重新发送上行数据,包括:
    随机生成一个随机退避时间;
    在等待所述随机退避时间之后,在最近一个可用的上行共享资源上重新发送上行数据。
  73. 根据权利要求65至68任一所述的方法,其特征在于,所述通过MAC PDU接收反馈信息,包括:
    接收所述控制信道指示信息;
    通过指定标识对所述控制信道指示信息进行解扰,所述指定标识是所述m个UE所对应的标识,所述控制信道指示信息用于指示承载所述MAC PDU的下行资源的资源位置;
    通过所述控制信道指示信息所指示的所述下行资源接收所述MAC PDU,所述MAC PDU包含所述反馈信息。
  74. 根据权利要求73所述的方法,其特征在于,
    所述指定标识是竞争式无线网络临时标识CB-RNTI;
    或,
    所述指定标识是传输时间间隔无线网络标识TTI-RNTI,所述TTI-RNTI是通过上行共享资源的资源位置生成。
  75. 一种反馈信息的接收方法,其特征在于,所述方法包括:
    确定用户设备UE的上行共享资源和解调参考信号DM-RS;
    通过所述上行共享资源发送上行数据,所述上行数据包含所述UE的标识和所述DM-RS;
    计算约定反馈位置,所述约定反馈位置根据所述上行共享资源的资源位置 和所述DM-RS得到;
    计算所述UE的偏移量,所述UE的偏移量根据所述UE的标识得到;
    在下行资源的资源位置上接收确认信息ACK;所述下行资源的资源位置是所述约定反馈位置和所述偏移量两者结合所指示的。
  76. 根据权利要求75所述的方法,其特征在于,所述计算所述UE的偏移量,包括:
    对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量。
  77. 根据权利要求76所述的方法,其特征在于,所述下行资源的资源位置如下公式所示:
    Figure PCTCN2015085475-appb-100046
    Figure PCTCN2015085475-appb-100047
    其中,
    Figure PCTCN2015085475-appb-100048
    用于标识所述下行资源在物理层HARQ反馈信道PHICH中所在组的组号;
    Figure PCTCN2015085475-appb-100049
    用于标识所述下行资源在所述PHICH中所在组内的正交序列编号;nDMRS用于标识物理下行控制信道PDCCH最近一次向所述UE指示的DM-RS序列;
    Figure PCTCN2015085475-appb-100050
    用于所述PHICH中组的个数;
    Figure PCTCN2015085475-appb-100051
    是用于所述PHICH调制的扩展因子;f(C-RNTI)是所述UE对应的偏移量;
    其中:
    Figure PCTCN2015085475-appb-100052
    Figure PCTCN2015085475-appb-100053
    Figure PCTCN2015085475-appb-100054
    用于标识对应所述PUSCH传输过程中第一个时隙的最低物理资源块PRB的索引。
  78. 根据权利要求77所述的方法,其特征在于,所述对所述UE的标识进行预设运算操作,将所述预设运算操作的结果作为所述UE对应的偏移量,包括:
    计算所述UE的偏移量为:
    f(C-RNTI)=(C-RNTI)%M,其中M为正整数。
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