WO2016149887A1 - 一种信道状态信息的传输方法、用户设备及接入网设备 - Google Patents

一种信道状态信息的传输方法、用户设备及接入网设备 Download PDF

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Publication number
WO2016149887A1
WO2016149887A1 PCT/CN2015/074783 CN2015074783W WO2016149887A1 WO 2016149887 A1 WO2016149887 A1 WO 2016149887A1 CN 2015074783 W CN2015074783 W CN 2015074783W WO 2016149887 A1 WO2016149887 A1 WO 2016149887A1
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Prior art keywords
subset
channel resource
feedback information
uplink
access network
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PCT/CN2015/074783
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English (en)
French (fr)
Inventor
官磊
马莎
闫志宇
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华为技术有限公司
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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 EP15885826.6A priority Critical patent/EP3273734B1/en
Priority to CN201580069835.5A priority patent/CN107113797B/zh
Priority to PCT/CN2015/074783 priority patent/WO2016149887A1/zh
Priority to JP2017549244A priority patent/JP6564052B2/ja
Publication of WO2016149887A1 publication Critical patent/WO2016149887A1/zh
Priority to US15/710,350 priority patent/US10084524B2/en
Priority to US16/109,412 priority patent/US10333607B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • 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
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for transmitting channel state information (CSI), a user equipment (User Equipment, UE for short), and an access network device.
  • CSI channel state information
  • UE User Equipment
  • CA Carrier Aggregation
  • each aggregated carrier can be configured with a periodic CSI.
  • the periodic CSI is carried on the Physical Uplink Control Channel (PUCCH).
  • PUCCH Physical Uplink Control Channel
  • each subframe can only report one CSI of one carrier to the access network device. If multiple periodic CSIs are simultaneously configured in the same subframe, the UE will be pre-configured. The priority is discarded, and finally only one CSI with the highest priority is fed back to the access network device. In this way, the CSI of some carriers cannot be fed back to the access network device, or the period of the feedback is lengthened, which ultimately leads to a decrease in downlink data scheduling performance.
  • the capacity of the PUCCH is more limited due to the increase of the acknowledgment (ACK), or the acknowledgment (NACK), or the non-acknowledgement (NACK), so that the above situation will be more serious. .
  • Embodiments of the present invention provide a CSI transmission method, user equipment, and access network design.
  • a CSI transmission method In order to solve at least the problem that multiple CSIs cannot be simultaneously transmitted in the prior art, it is possible to provide a related solution for realizing simultaneous transmission of multiple CSIs.
  • a method for transmitting channel state information CSI includes:
  • the user equipment UE receives downlink data sent by the access network device
  • the UE Determining, by the UE, an uplink subframe for transmitting feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, where the first The subset is a true subset of the second subset;
  • a channel resource for transmitting the feedback information where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is a resource of a p codebook size format channel
  • the second uplink channel resource is a resource of a q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is a codebook size of the feedback information corresponding to the first subset, and q1 is a
  • the codebook size of the feedback information corresponding to the second subset, p, q, p1, and q1 are all positive integers;
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is the second Upgoing channel resources, the UE transmitting the feedback information and the t CSIs in the r CSIs on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, r, t are positive integers .
  • the method further includes:
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is the first
  • the UE sends the feedback information and the s CSI in the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r, and s is a positive integer.
  • the UE is determined to send the feedback information in combination with the first aspect or the second possible implementation manner of the first aspect After the channel resources, it also includes:
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the UE is the second The uplink channel resource, the UE sends the feedback information and the s serving CSI in the r CSIs on the second uplink channel resource, where 0 ⁇ s ⁇ r, s is a positive integer.
  • the receiving, by the UE, the downlink data sent by the access network device includes:
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the UE in the uplink subframe is configured to send r CSI
  • the second downlink The subframe set is a subset of the first subset
  • the channel resource determined by the UE is the first uplink channel resource or the second uplink channel resource
  • the second downlink subframe set includes the downlink subframe in the first subset and belongs to the second subset but does not belong to the a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the UE is the second uplink channel resource.
  • the method before the determining, by the UE, the channel resource for sending the feedback information, the method further includes:
  • Determining, by the UE, a channel resource for sending the feedback information including:
  • the UE Determining, by the UE, the mapping relationship between different states in the state set of the resource indication information configured by the access network device and the different channel resources in the channel resource set according to the resource indication information a channel resource for transmitting the feedback information, where the channel resource set includes the first uplink channel resource and the second uplink channel resource.
  • the resource indication information is further used to indicate a codebook size of the feedback information
  • the method further includes:
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information
  • the method further includes:
  • the different codebook size in the subset set corresponding to the codebook size according to the resource indication information and the state set of the resource indication information configured by the access network device in advance for the UE And determining, by the mapping relationship of the corresponding subset, a subset corresponding to the codebook size of the feedback information, where the subset of the subset corresponding to the codebook size includes the first subset and the second subset.
  • the seventh possible implementation manner of the first aspect in combination with the third possible implementation manner of the first aspect, the seventh possible implementation manner of the first aspect, determining, by the UE, a channel used for sending the feedback information After the resources, it also includes:
  • the feedback information corresponds to the first subset, and the channel resource determined by the UE is the first uplink channel resource, and the UE sends the feedback information on the first uplink channel resource; or ,
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the UE is the second uplink channel.
  • the UE sends the feedback information on the second uplink channel resource.
  • the UE in the uplink subframe is not configured to send CSI, and the second downlink subframe is And the set is the subset of the first subset, and the channel resource determined by the UE is the first uplink channel resource; or
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to the first a downlink subframe of a subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the UE is the second uplink channel resource.
  • a second aspect provides a user equipment UE, where the UE includes: a receiving module, a processing module, and a sending module;
  • the receiving module is configured to receive downlink data sent by the access network device
  • the processing module is configured to determine an uplink subframe for transmitting feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, The first subset is a true subset of the second subset; and,
  • the processing module is further configured to determine a channel resource for sending the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is a p codebook
  • the resource of the size format channel, the second uplink channel resource is a resource of the q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is the codebook of the feedback information corresponding to the first subset.
  • the size, q1 is the codebook size of the feedback information corresponding to the second subset, and p, q, p1, and q1 are all positive integers;
  • the sending module is configured to: if the UE in the uplink subframe is configured with r
  • the transmission of the channel status information CSI, the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the processing module is the second uplink channel resource, and the second uplink channel is
  • the feedback information and the t-part CSI in the r-part CSI are transmitted on the resource, r ⁇ 2, 2 ⁇ t ⁇ r, and r and t are positive integers.
  • the sending module is further configured to: after the processing module determines a channel resource for sending the feedback information, if the uplink subframe The UE is configured to send the C-CSI, the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the processing module is the first uplink channel resource, The feedback information and the s CSI in the r CSIs are sent on the first uplink channel resource, where 0 ⁇ s ⁇ r, and s is a positive integer.
  • the sending module is further configured to determine, in the processing module, the sending the feedback information After the channel resource, if the UE in the uplink subframe is configured to send the C-CSI, the codebook size of the feedback information corresponds to the second subset, and the channel determined by the processing module
  • the resource is the second uplink channel resource, and the feedback information and the s CSI of the r CSIs are sent on the second uplink channel resource, where 0 ⁇ s ⁇ r, and s is a positive integer.
  • the receiving module is specifically configured to:
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the processing module determines whether the UE in the uplink subframe is configured to send r CSI, and the second downlink a set of subframes is a subset of the first subset.
  • the channel resource determined by the block is the first uplink channel resource or the second uplink channel resource; or
  • the second downlink subframe set includes the downlink subframe in the first subset and belongs to the second subset but does not belong to the a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module is the second uplink channel resource.
  • the receiving module is further configured to, at the processing module, determine to send the feedback information, in combination with the second aspect to the fourth possible implementation manner of the second aspect Before receiving the channel resource, receiving the resource indication information sent by the access network device, where the resource indication information is used to indicate a channel resource that sends the feedback information;
  • the determining module is specifically configured to:
  • the resource indication information is further used to indicate a codebook size of the feedback information
  • the processing module is further configured to: according to the resource indication information, and different states in the state set of the resource indication information configured by the access network device in advance for the UE, and different codebooks in the codebook size set Determining a codebook size of the feedback information, where the codebook size set includes a codebook size corresponding to the first subset and a codebook size corresponding to the second subset.
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information
  • the processing module is further configured to: according to the resource indication information, and a subset set corresponding to a codebook size in different states in a state set of the resource indication information configured by the access network device in advance for the UE Determining, by the subset of the different codebook sizes, a subset of the codebook size corresponding to the codebook size, wherein the subset of the codebook size includes the first subset and the The second subset.
  • the sending module is further configured to determine, by the processing module After transmitting the channel resource of the feedback information, if the UE in the uplink subframe is not configured to send CSI, the codebook size of the feedback information corresponds to the first subset, and the processing module Determining the channel resource as the first uplink channel resource, and sending the feedback information on the first uplink channel resource; or
  • the sending module is further configured to: after the processing module determines the channel resource for sending the feedback information, if the UE in the uplink subframe is not configured to send CSI, the codebook of the feedback information The size corresponds to the second subset, and the channel resource determined by the processing module is the second uplink channel resource, and the feedback information is sent on the second uplink channel resource.
  • the UE in the uplink subframe is not configured to send CSI, and the second downlink subframe
  • the set is the subset of the first subset, and the channel resource determined by the processing module is the first uplink channel resource;
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to the first a downlink subframe of a subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module is the second uplink channel resource.
  • the CSI transmission method and the UE are provided according to the embodiment of the present invention.
  • the codebook size of the feedback information corresponds to the The first subset, and the letter determined by the UE
  • the UE only needs to send the feedback information according to the codebook size of the feedback information corresponding to the first subset on the second uplink channel resource.
  • the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel
  • the codebook size of the first uplink channel is smaller than the codebook size of the second uplink channel, and therefore, the second uplink channel resource
  • the maximum number of bits of the bearer feedback information is not limited, and the UE may not only send the feedback information on the second uplink channel resource, but also send the r CSI in the second uplink channel resource.
  • a method for transmitting channel state information CSI includes:
  • the access network device sends downlink data to the user equipment UE;
  • the access network device determines an uplink subframe for receiving feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, where The first subset is a true subset of the second subset; and,
  • the access network device determines a channel resource for receiving the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, and the first uplink channel resource is a p codebook size format a resource of the channel, where the second uplink channel resource is a resource of a q-code size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is a codebook size of the feedback information corresponding to the first subset, Q1 is a codebook size of the feedback information corresponding to the second subset, and p, q, p1, and q1 are positive integers;
  • the access network device in the uplink subframe is configured to receive r-CSI
  • the codebook size of the feedback information corresponds to the first subset
  • the channel determined by the access network device The resource is the second uplink channel resource
  • the access network device receives the feedback information and the t CSI in the r CSI on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, p1, r, t are all positive integers.
  • the method further includes:
  • the codebook size of the feedback information corresponds to the first subset, and the channel determined by the access network device
  • the resource is the first uplink channel resource, and the access network device receives the feedback information and the s CSI in the r CSI on the first uplink channel resource, where 0 ⁇ s ⁇ r, s is A positive integer.
  • the codebook size of the feedback information corresponds to the second subset, and the channel determined by the access network device
  • the resource is the second uplink channel resource, and the access network device receives, on the second uplink channel resource, the feedback information and the s CSI in the r CSI, 0 ⁇ s ⁇ r, q1 s is a positive integer.
  • the access network device sends downlink data to the user equipment UE, including:
  • the access network device sends downlink data to the UE in a downlink subframe included in the second downlink subframe set, where
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the access network device in the uplink subframe is configured to receive r CSI
  • the second downlink subframe set is a subset of the first subset
  • the channel resource determined by the access network device is the first uplink channel resource or the second uplink channel resource
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the a second subset but not belonging to the downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the access network device The second uplink channel resource.
  • the access network device sends resource indication information to the UE, where the resource indication information is used to indicate channel resources for transmitting the feedback information.
  • the resource indication information is further used to indicate a codebook size of the feedback information.
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information.
  • the access network device determines to receive the feedback After the channel resources of the information, it also includes:
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the access network device is The first uplink channel resource, where the access network device receives the feedback information on the first uplink channel resource;
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the access network device is And the second uplink channel resource, where the access network device receives the feedback information on the second uplink channel resource.
  • the access network device in the uplink subframe is not configured to receive CSI, and the second The downlink subframe set is a subset of the first subset, and the channel resource determined by the access network device is the first uplink channel resource; or
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the access network device is the second uplink channel Resources.
  • a fourth aspect provides an access network device, where the access network device includes: a sending module, a processing module, and a receiving module;
  • the sending module is configured to send downlink data to the user equipment UE;
  • the processing module is configured to determine an uplink subframe for receiving feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, The first subset is a true subset of the second subset; and,
  • the processing module is further configured to determine a channel resource for receiving the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is a p codebook
  • the resource of the size format channel, the second uplink channel resource is a resource of the q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is the codebook of the feedback information corresponding to the first subset.
  • the size, q1 is the codebook size of the feedback information corresponding to the second subset, and p, q, p1, and q1 are all positive integers;
  • the receiving module is configured to: if the access network device in the uplink subframe is configured to receive r channel state information CSI, the codebook size of the feedback information corresponds to the first subset, and
  • the channel resource determined by the processing module is the second uplink channel resource, and the feedback information and the t CSI in the r CSI are received on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, p1, r, t are all positive integers.
  • the receiving module is further configured to: after the processing module determines a channel resource for receiving the feedback information, if the uplink subframe
  • the access network device is configured to receive the CSI, the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the processing module is the first uplink channel.
  • the resource receives the feedback information and the s CSI in the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r, and s is a positive integer.
  • the receiving module is further configured to determine, at the processing module, to receive the feedback information.
  • the processing module determines The channel resource is the second uplink channel resource, and the feedback information and the s CSI in the r CSI are received on the second uplink channel resource, where 0 ⁇ s ⁇ r, q1 and s are positive Integer.
  • the sending module is specifically configured to:
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the access network device in the uplink subframe is configured to receive r CSI
  • the second downlink subframe set is a subset of the first subset
  • the channel resource determined by the processing module is the first uplink channel resource or the second uplink channel resource
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but a downlink subframe that does not belong to the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module is the second uplink channel Resources.
  • the sending module is further configured to determine, at the processing module, to receive the feedback information After the channel resource, the resource indication information is sent to the UE, where the resource indication information is used to indicate a channel resource for transmitting the feedback information. source.
  • the resource indication information is further used to indicate a codebook size of the feedback information.
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information.
  • the receiving module is further configured to be determined by the processing module After receiving the channel resource of the feedback information, if the access network device in the uplink subframe is not configured to receive CSI, the codebook size of the feedback information corresponds to the first subset, and The channel resource determined by the processing module is the first uplink channel resource, and the feedback information is received on the first uplink channel resource; or
  • the receiving module is further configured to: after the processing module determines the channel resource for receiving the feedback information, if the access network device in the uplink subframe is not configured to receive CSI, the feedback information
  • the codebook size corresponds to the second subset, and the channel resource determined by the processing module is the second uplink channel resource, and the feedback information is received on the second uplink channel resource.
  • the access network device in the uplink subframe is not configured to receive CSI
  • the second The downlink subframe set is a subset of the first subset
  • the channel resource determined by the processing module is the first uplink channel resource
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module is the second uplink channel resource.
  • the CSI transmission method and the access network device provided by the embodiment of the present invention are In the embodiment of the present invention, when the UE in the uplink subframe is configured to send the C-CSI, the codebook size of the feedback information corresponds to the first subset, and the channel determined by the UE When the resource is the second uplink channel resource, the access network device only needs to receive the feedback information according to the codebook size of the feedback information corresponding to the first subset on the second uplink channel resource.
  • the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel
  • the codebook size of the first uplink channel is smaller than the codebook size of the second uplink channel, and therefore, the second uplink channel resource
  • the maximum number of bits of the feedback information that can be carried is not limited, and the access network device can receive the feedback information not only on the second uplink channel resource, but also on the second uplink channel resource.
  • FIG. 1 is a schematic structural diagram of a channel of a PUCCH format 3 according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a CA system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart 1 of a CSI transmission method according to an embodiment of the present disclosure
  • FIG. 4 is a second schematic flowchart of a CSI transmission method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart 3 of a CSI transmission method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart 4 of a CSI transmission method according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart 5 of a CSI transmission method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart 6 of a CSI transmission method according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an access network device according to an embodiment of the present invention.
  • the downlink of the LTE system is based on Orthogonal Frequency Division Multiplexing Access (OFDMA), and the time-frequency resources are divided into OFDMA symbols (hereinafter referred to as time domain symbols) in the time domain dimension and frequency domain dimensions.
  • Child Carrier the uplink is based on Single Carrier-Frequency Division Multiplexing Access (SC-FDMA), and the time-frequency resources are divided into SC-FDMA symbols in the time domain dimension (hereinafter referred to as time domain symbols).
  • SC-FDMA Single Carrier-Frequency Division Multiplexing Access
  • time-frequency resources are divided into SC-FDMA symbols in the time domain dimension (hereinafter referred to as time domain symbols).
  • the sub-carrier in the frequency domain dimension, and the smallest resource granularity is called a resource element (Resource Element, RE for short), that is, a time-domain symbol in the time domain and a time-frequency composed of one sub-carrier in the frequency domain. Grid.
  • RE resource element
  • the transmission of services in the LTE system is based on base station scheduling.
  • the basic time unit of scheduling is one subframe, and one subframe includes multiple time domain symbols.
  • the specific scheduling process includes: the base station sends a physical downlink shared channel (Physical Downlink Shared) through a control channel (such as a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH)).
  • a control channel such as a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH)
  • Channel abbreviated as: PDSCH) or scheduling information of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH for short), the scheduling information includes resource allocation information, and control information such as an encoding mode is adjusted.
  • the UE detects the control channel in the subframe, and receives downlink data or sends uplink data according to the scheduling information carried in the detected control channel.
  • the LTE system supports two types of duplex modes: Frequency Division Multiplexing (FDD) and Time Duplexing Division (TDD).
  • FDD Frequency Division Multiplexing
  • TDD Time Duplexing Division
  • the downlink and uplink are transmitted on different carriers.
  • the uplink and downlink are transmitted at different times on the same carrier.
  • the downlink subframe, the uplink subframe, and the special subframe are included in a carrier, where the special subframe includes a Downlink Pilot Time Slot (DwPTS), a Guard Period (GP), and The uplink pilot time slot (Uplink Pilot Time Slot, referred to as UpPTS) is used in three parts.
  • the GP is mainly used for downlink to uplink conversion time and propagation delay compensation.
  • downlink data can be transmitted in the DwPTS, but uplink data cannot be transmitted in the UpPTS.
  • LTE currently supports 7 different TDD uplink and downlink configurations, as shown in Table 1, where D represents a downlink subframe, S represents a special subframe, and U represents an uplink subframe.
  • the LTE system adopts a Hybrid Automatic Repeat Request (HARQ) mechanism.
  • HARQ Hybrid Automatic Repeat Request
  • the UE after the UE receives the data carried by the PDSCH, if the receiving is correct, the UE feeds back the ACK information on the PUCCH; if the receiving is incorrect, the NACK information is fed back on the PUCCH.
  • the UE After receiving the PDSCH bearer data in the subframe n-4, the UE feeds back ACK information or NACK information in the subframe n; for TDD, the timing relationship between the PDSCH and its corresponding ACK information or NACK information is as shown in Table 2. .
  • the subframe of the standard number is an uplink subframe n for feeding back ACK information or NACK information
  • the number of the identifier indicates the PDSCH in the downlink subframe set in which the feedback nk (k belongs to K) needs to be fed back in the uplink subframe n.
  • the ACK information or the NACK information corresponding to the PDSCH on the frame, specifically n-7 is the downlink subframe 5, and n-6 is the downlink subframe 6.
  • the LTE system also supports the CA technology, that is, the access network device configures and provides multiple carriers for uplink and downlink communication for a UE supporting carrier aggregation, thereby supporting higher data rate transmission.
  • the CA When the CA is performed, the multiple carriers sent by the base station are synchronized in the transmission time, and the UE may separately detect the PDCCH and the corresponding PDSCH for scheduling each carrier, wherein the specific detection process of each carrier is similar to the single carrier case described above.
  • the LTE system supports FDD CA, TDD CA, and FDD+TDD CA.
  • TDD CA For the TDD CA, it is further divided into a TDD CA with the same uplink and downlink configuration and a TDD CA with different uplink and downlink configurations.
  • the PUCCH format 3 mode uses Discrete Fourier Transform (DFT) to spread orthogonal frequency division multiplexing (DFT-).
  • DFT-S-OFDM Spread structure of Spread-OFDM, abbreviation: DFT-S-OFDM.
  • DFT-S-OFDM Spread structure of Spread-OFDM
  • Up to 22 pre-coded bit transfers can be supported.
  • the TDD uplink and downlink configuration 2 of the mainstream network in the current network is taken as an example.
  • the uplink subframe 2 of one carrier can support the feedback of four ACK information or NACK information bits
  • the CA of the TDD uplink and downlink configuration 2 of the five carriers can support Feedback of 20 ACK messages or NACK information bits.
  • the original ACK information or the bits of the NACK information are subjected to Reed Muller (RM) channel coding to generate 48 coded bits, and then scrambled and modulated into 24 bits.
  • Quadrature Phase Shift Keying (QPSK) symbols are placed in two time slots of one subframe.
  • QPSK symbols are specifically placed on 12 consecutive subcarriers on one time domain symbol of the time slot, that is, one of the Resource Blocks (RBs). 12 subcarriers on the time domain symbol.
  • the length in the time domain is 5 Orthogonal Cover Code (OCC) spread spectrum, which occupies 5 time-domain symbols in one RB, respectively.
  • OCC Orthogonal Cover Code
  • Different UEs can perform code division multiplexing on different RBs on one RB, and the other two.
  • the symbol is used to carry a reference signal (Reference Signal, referred to as RS).
  • RS Reference Signal
  • the specific data scheduling and PUCCH channel resources are indicated as follows:
  • the PUCCH format 1a/1b is used to feed back the ACK information or the NACK information.
  • the PUCCH format 1a/1b The channel resource is implicitly corresponding by the Control Channel Element (CCE) label of the primary PDCCH.
  • CCE Control Channel Element
  • the PUCCH format 3 is used.
  • the ACK information or the NACK information is fed back, and the channel resource of the PUCCH format 3 is indicated by a two-bit field in the secondary PDCCH.
  • the radio resource control Radio Resource Control, RRC for short
  • RRC Radio Resource Control
  • the current PUCCH format 3 mode also supports the ACK information of the TDD single carrier or the NACK information feedback.
  • the specific procedure is as follows: if the UE only receives the scheduling information of the PDSCH on the primary carrier carried by the primary PDCCH, and the downlink allocation index in the primary PDCCH If the (Downlink Assignment Index, DAI for short) field is indicated as '1', the PUCCH format 1a/1b is used to feed back ACK information or NACK information, and the channel resource of the PUCCH format 1a/1b is implicitly used by the CCE label of the primary PDCCH.
  • DAI Downlink Assignment Index
  • the PUCCH format 3 is used to feed back ACK information or NACK information,
  • the channel resource of PUCCH format 3 displays an indication by a two-bit field in the primary PDCCH containing a DAI value greater than one.
  • the foregoing ACK information or NACK information transmission supporting the fallback mode of the PUCCH format 1a/1b is to reduce the overhead of the PUCCH format 3, because the PUCCH format 3 is in one In the RB, only 5 UEs can be code-multiplexed, and the PUCCH format 1a/1b can be code-multiplexed with up to 36 UEs in one RB. Therefore, the resource overhead of the PUCCH format 3 can be reduced as much as possible.
  • the access network device in the embodiment of the present invention is specifically a base station.
  • the system architecture of the embodiment of the present invention is still based on the current CA architecture, and is composed of a base station and multiple UEs.
  • a CA that can introduce more carriers in the CA architecture, or a CA that maintains the current 5 carriers, but can support multiple uplink and downlink configuration 5 carriers; or, support more than two TDD carriers with only downlink subframes, or the foregoing
  • the combination of the carriers of the different uplink and downlink configurations is not specifically limited in this embodiment of the present invention.
  • the access network device in the embodiment of the present invention may also be other, such as a radio network controller, which is not specifically limited in this embodiment of the present invention.
  • the embodiment of the present invention provides a CSI transmission method, which is specifically applied to the UE shown in FIG. 2, as shown in FIG. 3, and includes:
  • the UE receives downlink data sent by the access network device.
  • the UE determines an uplink subframe for transmitting feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, where The first subset is a true subset of the second subset.
  • the UE determines a channel resource for sending the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is a p codebook size format channel.
  • the second uplink channel resource is a resource of a q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is a codebook size of the feedback information corresponding to the first subset, q1 For the second subset pair
  • the codebook size of the feedback information, p, q, p1, and q1 are all positive integers.
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is the a second uplink channel resource, where the UE sends the feedback information and t parts of CSI in the r CSIs on the second uplink channel resource, where r ⁇ 2, 2 ⁇ t ⁇ r, p1, r , t is a positive integer.
  • the feedback information is used to indicate whether the UE correctly receives the downlink data. For example, if the downlink data is correctly received, the feedback information may be indicated by using an ACK; if the downlink data is not correctly received. The feedback information can be indicated by NACK. Of course, the feedback information in the embodiment of the present invention may also be other information, which is not limited by the embodiment of the present invention.
  • the UE may determine an uplink subframe for sending the feedback information by using a timing or timing correspondence between the downlink subframe and the uplink subframe in advance, that is, Determining, in accordance with a pre-configured uplink and downlink subframe configuration, an uplink subframe determined to be used for transmitting the feedback information.
  • an uplink subframe in which the feedback information is sent may be determined according to Table 2.
  • the first downlink subframe associated with the uplink subframe is specifically that the feedback information corresponding to the scheduled downlink data in the first downlink subframe needs to be fed back in the uplink subframe.
  • the first downlink subframe is determined by the timing or timing correspondence between the pre-configured downlink subframe and the uplink subframe, that is, according to the pre-configured uplink and downlink subframe configuration.
  • the first downlink subframe associated with the uplink subframe may be determined according to Table 2.
  • the downlink subframe mentioned herein includes true downlink subframes and special subframes for TDD, because as described above, downlink data can also be transmitted in a special subframe, but uplink data cannot be transmitted. Moreover, the downlink data transmitted in the special subframe also has corresponding feedback information, so the special subframe can be attributed to the downlink subframe, which is used in the embodiment of the present invention.
  • a set of all downlink subframes associated with an uplink subframe for transmitting feedback information is referred to as a first downlink subframe set, and the first downlink subframe set includes at least two subsets. That is, the first subset and the second subset.
  • all said A row subframe refers to all downlink subframes on all carriers configured for the UE that are configured to send feedback information on the uplink subframe.
  • the UE is configured with 15 carriers by the access network device, and the same uplink and downlink subframe configuration 2 is configured for the 15 carriers (see Table 1 and Table 2 for details), and the uplink subframe may be subframe 2 All downlink subframes associated with the uplink subframe, that is, the first downlink subframe set, include downlink subframes 4, 5, 6, and 8 on 15 carriers.
  • the first downlink subframe set may be configured by the access network device to the UE by using RRC signaling, or may be configured by the access network device to the UE by using other methods, which is not specifically limited in this embodiment of the present disclosure. .
  • the first downlink subframe set includes two subsets as an example, but is not limited to two sets, and may be greater than two sets, for example, if the access network device is The UE is configured with 15 carriers, and the downlink subframes corresponding to the carriers may be divided into 3 subsets, or 4 subsets, and may be further divided into more sets, which is not specifically limited in this embodiment of the present invention.
  • A may include some elements of B, and may also include all elements of B.
  • the second subset is a subset of the first downlink subframe set, and the second subset may include all downlink subframes of the first downlink subframe set, or may only include the first downlink subframe set. Partial downlink subframe.
  • A if A is a true subset of B, then A can only contain some elements of B.
  • the first subset is a true subset of the second subset, and the first subset includes a portion of the downlink subframe of the first downlink subframe set.
  • the downlink subframe in the first downlink subframe set that does not belong to the second subset refer to the method of the first subset and the second subset in the embodiment of the present invention, which is not used by the embodiment of the present invention. Specifically limited.
  • the UE may determine the first subset and the second subset according to a pre-configuration. Taking TDD CA as an example, it is assumed here that subframes having the same subframe number on different carriers are different downlink subframes.
  • the first subset configured in advance may include downlink subframes 4, 5, 6, and 8 of carriers 1 to 5
  • the second subset may include downlink subframes 4, 5, 6, and 8 of carriers 1 to 10, which may be viewed.
  • the second subset is completely contained in the first subset.
  • the embodiment of the present invention may further include a third subset, specifically including downlink subframes 4, 5, 6, and 8 of carriers 1-15, that is, the third subset is configured for the access network device to be configured by the UE.
  • the UE may also determine the first subset and the second subset by using pre-configured rules.
  • the pre-configured rule may be to determine the first subset and the second subset according to a carrier label and a subframe label and a bit number threshold limit of the feedback information (such as 20 bits or 21 bits or 22 bits).
  • the UE determines that the first subset includes downlink subframes 4, 5, 6, and 8 of carriers 1 through 5
  • the second subset includes downlink subframes 4, 5, 6, and 8 of carriers 1 through 10.
  • the method for selecting the first subset is to select the downlink subframe of the carrier 1 in the order of the first time domain subframe label, and then continue to select the downlink subframe of the carrier 2 based on the frequency domain carrier label, and obtain the threshold defined by the threshold.
  • the number of downlink subframes; the second subset is selected in a similar manner to the first subset. For example, if the threshold is 10, or 5 carriers are used, and each carrier is configured as a subframe 2, a set division manner is: the first subset includes downlink subframes 4 and 5 of carriers 1 to 2.
  • the second subset includes all the downlink subframes of the first subset, the downlink subframes 6 and 8 of the carrier 3, and the carrier 4 to 5 downlink subframes 4, 5, 6, and 8, in which case different subframes on one carrier may be divided into different downlink subframe sets.
  • the first subset and the second subset are selected according to the first time domain subframe number and the frequency domain carrier number.
  • the pre-configured rule may be based on a carrier label and a subframe label and a bit number threshold limit of the feedback information (such as 20 bits or 21 bits or 22 bits), and determining that the downlink subframe within the maximum number of carriers that does not exceed the threshold is a certain Collections.
  • the number of downlink subframes in a certain set may be less than the above threshold.
  • the first subset includes downlink subframes 4, 5, 6, and 8 of carriers 1 to 2
  • the second subset includes downlink subcarriers of carriers 3 to 5 in addition to all downlink subframes including the first subset.
  • the pre-configured rule may also select the first subset and the second subset according to the order of the frequency domain carrier label and the time domain subframe label, and the bit number threshold of the feedback information, which is not used in the embodiment of the present invention. Specifically limited.
  • pre-configured rules there are a plurality of pre-configured rules, as long as the pre-configured rules of the embodiments of the present invention can be applied to the embodiments of the present invention, and details are not described herein again.
  • the UE may further determine the first subset and the second subset by using signaling sent by the access network device.
  • the access network device may notify the UE of the division rule by signaling, or directly notify the first subset and the second subset of the UE, which is not specifically limited in this embodiment of the present invention.
  • the foregoing is only an exemplary implementation of the method for determining the first subset and the second subset of the UE.
  • the UE may also determine the first subset and the second subset by using other methods. This is not specifically limited.
  • the p-code size channel format refers to the feedback that the channel format can support the feedback information of the p-codebook size
  • the q-code size channel format means that the channel format can be the largest. Feedback that supports feedback information for q-code size.
  • the codebook size refers to the number of original bits before the feedback information is encoded.
  • the codebook size of the feedback information corresponding to the first subset refers to the codebook size of the feedback information determined by the number of downlink subframes included in the first subset; and the codebook size of the feedback information corresponding to the second subset is Refers to the codebook size of the feedback information determined by the number of downlink subframes included in the second subset.
  • the downlink subframe included in the first subset is the downlink subframes 4, 5, 6, and 8 of the carriers 1 to 5, and a total of 20 downlink subframes.
  • the first subframe The codebook size of the feedback information corresponding to a subset is 20 bits; if the data scheduled on each subframe is two codewords, the codebook size of the feedback information corresponding to the first subset is 40 bits.
  • the codebook ordering of the feedback information may be a first carrier followed by a subframe, sorted according to the principle that the carrier and the subframe label are from small to large, or may be a first subframe followed by a carrier, sorted according to the principle that the carrier and the subframe label are from small to large. The embodiment of the present invention does not specifically limit this. For a downlink subframe that is not scheduled, the location is pre- Leave it and fill it with NACK. For the case of the second subset, similar processing will not be repeated later.
  • the first subset, the second subset, and the codebook size of the corresponding feedback information have a correspondence relationship as shown in Table 3.
  • the codebook size of the feedback information corresponding to the subset is not smaller than the codebook size (p1) of the feedback information corresponding to the first subset; and the codebook size (q) of the second uplink channel is not less than the corresponding corresponding to the second subset.
  • the codebook size (q1) of the feedback information is not less than the corresponding corresponding to the second subset.
  • the first uplink channel resource may include n resource units
  • the second uplink channel resource may include m resource units, where m ⁇ n, m, and n are positive integers.
  • the p-code size channel format can be regarded as n resource unit channel formats
  • the q-code size channel format can be regarded as m resource unit channel formats.
  • the resource unit in the m resource unit channel format and the n resource unit channel format may include a resource block (Resource Block, RB for short), a resource block pair (RPB), a sub-RB, and a sub-PRB. Any of them. For example, if it is an RB, it is m RBs, n RBs, where n can be 1, and m can be a positive integer greater than or equal to 1.
  • the sub-RB is a part of an RB, and the frequency domain width of the sub-RB may be smaller than the frequency domain width of one RB, for example, occupying 4 sub-carriers, occupying one time slot or sub-frame in the time domain; or, the time-domain width of the sub-RB may be smaller than One time slot, for example, occupies three time domain symbols, and the frequency domain occupies 12 subcarriers, that is, the frequency domain width of one RB; or, the sub RBs occupy less time in the time domain and the frequency domain than the current one RB. Frequency domain width and time domain length.
  • the sub PRB is a pair of sub RBs.
  • the p-code size channel format and the q-code size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p-code size channel format is greater than the q-code size channel. The length of the orthogonal code used by the format.
  • the codebook size of the codebook size channel format (or the m resource unit channel format) can transmit the codebook size of the feedback information that can be transmitted by the p code size channel format (or the n resource unit channel format) is that The length of the orthogonal code used by the former is smaller than the orthogonal code length of the latter, and the multiplexing efficiency on the same time-frequency resource is sacrificed in exchange for the improvement of the codebook size.
  • PUCCH format 3 it is assumed that both formats occupy the time-frequency resource of PUCCH format 3 of one RB, but the length of the time-domain orthogonal code of the p-code size channel format is 5, that is, the RB can be the most
  • the p-code size channel format of 5 UEs is multiplexed; and the length of the time-domain orthogonal code of the q-code size channel format is assumed to be 2 and 3, that is, the first two time-domain symbols are time-domain orthogonal with length 2
  • the code spreads, and the last three time domain symbols are spread with a time domain orthogonal code of length 3. It is assumed that the other two time domain symbols in the time slot are used for the transmission of the RS.
  • the RB can accommodate the q codebook size channel format of the two UEs, but the code of the feedback information supported by the q codebook size channel format.
  • the size is twice the codebook size of the feedback information supported by the p code size channel format, because the q codebook size channel format adopts two sets of time domain orthogonal code spreading, wherein each group of time domain orthogonal code codes
  • the length is smaller than the 5-long time-domain orthogonal code used by the p-code size channel format, and the multiplexing capability is determined by the length of the shorter-length time-domain orthogonal code in the two sets of time-domain orthogonal codes.
  • step S304 of the embodiment of the present invention when the UE in the uplink subframe is configured to send the C-CSI, the codebook size of the feedback information corresponds to the first subset, and When the channel resource determined by the UE is the second uplink channel resource, the UE only needs to send the feedback information according to the codebook size of the feedback information corresponding to the first subset on the second uplink channel resource. Considering that the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel, the codebook size of the first uplink channel is small.
  • the maximum size of the feedback information that can be carried on the second uplink channel resource is not limited, and the UE can not only send the feedback information on the second uplink channel resource, but also And transmitting, in the second uplink channel resource, t parts of CSI in the r pieces of CSI, r ⁇ 2, 2 ⁇ t ⁇ r. That is, the UE sends the feedback information and the t-share CSI in the r-part CSI on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, thereby implementing multiple CSI simultaneous transmission.
  • the UE may also send only part of the CSI in the C-CSI to the access network device, that is, r>t.
  • one of the transmissions may refer to the transmission of a certain CSI on a certain carrier, such as the broadband channel quality information on the carrier 1.
  • a certain carrier such as the broadband channel quality information on the carrier 1.
  • CQI Channel Quality Information
  • RI Layer indication
  • RI Rank Indicator
  • PMI Precoding Matrix Indicator
  • the method may further include:
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is the a first uplink channel resource, where the UE sends the feedback information and the s CSI in the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r, s is a positive integer.
  • step S305 of the embodiment of the present invention when the UE in the uplink subframe is configured to send the C-CSI, the codebook size of the feedback information corresponds to the first subset, and When the channel resource determined by the UE is the first uplink channel resource, the UE sends the feedback information on the first uplink channel resource according to the codebook size of the feedback information corresponding to the first subset.
  • the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel, the maximum number of bits of the feedback information that can be carried on the first uplink channel resource is limited, and the UE is in the foregoing
  • An uplink channel resource may transmit no less than one CSI, or one CSI may not be transmitted. That is, the UE may send the feedback information on the first uplink channel resource, and may also send the s CSI in the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r, s is A positive integer.
  • the UE may send only part of the CSI in the CSI to the access network device, and may also send all the CSIs in the CSI to the access network device, which is not specifically limited in this embodiment of the present invention.
  • the method may further include:
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the UE is the a second uplink channel resource, where the UE sends the feedback information and the s serving CSI in the r CSIs on the second uplink channel resource, where 0 ⁇ s ⁇ r, and q1 and s are positive integers.
  • step S306 of the embodiment of the present invention if the UE in the uplink subframe is configured to send the C-CSI, the codebook size of the feedback information corresponds to the second subset, and When the channel resource determined by the UE is the second uplink channel resource, the UE sends the feedback information on the second uplink channel resource according to the codebook size of the feedback information corresponding to the second subset.
  • the second uplink channel resource may send no less than one CSI, or one CSI may not be sent. That is, the UE may send the feedback information on the second uplink channel resource, and may also send the s CSI in the r CSIs on the second uplink channel resource, where 0 ⁇ s ⁇ r, s is A positive integer.
  • the second uplink channel cannot carry the CSI after carrying the 40-bit feedback information.
  • the codebook size of the second uplink channel is 40 bits and the codebook size of the feedback information is 20 bits
  • the first uplink channel may carry CSI after carrying 10-bit feedback information.
  • the UE can send all the r CSIs to the access network device, that is, the UE sends the feedback information and the information on the second uplink channel resource.
  • the UE may also send only part of the CSI in the C-CSI to the access network device, that is, r>s.
  • the CSI is sent to the access network device.
  • one method in order to support CA of more carriers, one method is to expand the capacity of the current PUCCH format 3, for example, from one RB to multiple RBs.
  • the PUCCH format 3 of two RBs as an example, it is only necessary to extend the 12 subcarriers occupied by each slot to 24 subcarriers, and it is not necessary to change the time domain OCC spreading, so that it can be proportionally made
  • the PUCCH format 3 of the dual RB supports transmission of 40 bits of feedback information, thereby supporting more carriers (such as 10 carriers).
  • CA The scheme of extending to three RBs or more RBs is similar, and only needs to be extended in the frequency domain.
  • the PUCCH format 3 of a single RB has a larger overhead than the PUCCH format 1a/1b due to the limited multiplexing capability, and the overhead of the PUCCH format 3 extended to multiple RBs is larger because the multiplexing capability is smaller than the PUCCH format of the single RB. 3 is the same, but the resources occupied are multiplied with the expansion of RB.
  • other methods may be considered. For example, it is also possible to extend the PUCCH that introduces a large capacity by using a resource unit smaller than the RB granularity, and even cancel the spreading code and directly use the PUCCH multiplexing of the time-frequency division. The way is also ok. This embodiment of the present invention does not specifically limit this.
  • the PUCCH format 3 of the dual RB As an example, it is assumed that the CA supporting 10 carriers is used, that is, if 10 carriers are scheduled, the PUCCH format 3 of the dual RB is used. However, after 10 UEs are configured for the UE, it is necessary to consider a plurality of factors for the UE to select a plurality of the above 10 carriers for data scheduling, and not every subframe will schedule 10 carriers. Specifically, the number of scheduled carriers is determined by the current traffic load; even if there is a scheduling requirement, the capacity of the PDCCH resource region needs to be considered. If the PDCCH of the UE cannot be scheduled, the data on the corresponding carrier cannot be scheduled.
  • the dynamic PUCCH format can be introduced. For example, if only the data of the first 5 carriers is scheduled, then the PUCCH format 3 of the single RB can be dynamically rolled back to transmit the feedback information; if 10 carriers are scheduled, the PUCCH format 3 of the dual RB can be used. The feedback information is transmitted, thereby reducing the overhead of PUCCH format 3.
  • the receiving, by the UE, the downlink data sent by the access network device may specifically include:
  • the UE receives the downlink data in a downlink subframe included in the second downlink subframe set.
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set; or
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the second downlink subframe set may be a scheduling set, or may be an active set. Hehe. If the second downlink subframe is a scheduling set, the specific downlink information may be obtained by:
  • the UE Before receiving the downlink data, the UE receives the downlink control information that is sent by the access network device and schedules the downlink data, and further determines, according to the downlink control information, which downlink subframes are scheduled, and the scheduled downlink subframes constitute the second downlink. a set of subframes, where the second set of downlink subframes is a subset of the first set of downlink subframes.
  • the scheduled downlink subframe may be one or multiple. When the scheduled downlink subframe is one, it may be a downlink subframe on the secondary carrier, or may be a DAI field on the primary carrier.
  • the downlink subframe scheduled by the control channel whose value is greater than 1, but not the downlink subframe corresponding to the PDCCH that is scheduled to be on the primary carrier and whose DAI field is 1 is scheduled.
  • the second downlink subframe is an active set, it can be understood that the downlink subframe that the UE is actually scheduled is the downlink subframe in the subset of the second downlink subframe set.
  • the activated second downlink subframe set may be configured by the access network device to the UE by using Media Access Control (MAC) signaling, or may be configured by the access network device by using other methods.
  • MAC Media Access Control
  • the embodiments in the present invention are all described as assuming that the second downlink subframe set is the actual scheduled downlink subframe set, the same applies to the second downlink subframe set being the activated downlink subframe.
  • the embodiment of the present invention does not specifically limit this.
  • the UE is configured with 15 carriers, and the uplink subframe 2 needs to feed back up to 60 bits of feedback information, but the number of carriers or downlinks scheduled for the UE in a certain subframe is The number of frames may be smaller than the above maximum value, and is specifically related to various factors such as the instantaneous traffic load of the UE and the control channel capacity.
  • the channel determined by the UE The resource is the first uplink channel resource or the second uplink channel resource;
  • the second The downlink subframe set includes a downlink subframe in the first subset and a downlink subframe that belongs to the second subset but does not belong to the first subset, and the second downlink subframe set is the foregoing a subset of the second subset, the channel resource determined by the UE is the second uplink channel resource.
  • the second downlink subframe set is a subset of the first subset.
  • the channel resource determined by the UE may be the first uplink channel resource or the second uplink channel resource.
  • the first subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-5
  • the second subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-10
  • the second downlink subframe set includes subframes 4, 5, 6, and 8 of carrier 1, subframes 4, 5, and 6 of carrier 3, and subframes 4 and 5 of carrier 6. That is, the second downlink subframe set includes a downlink subframe in the first subset and a downlink subframe that belongs to the second subset but does not belong to the first subset, and the second downlink subframe set is A subset of the second subset.
  • the channel resource determined by the UE is the second uplink channel resource.
  • the method may further include:
  • the UE receives the resource indication information sent by the access network device, where the resource indication information is used to indicate a channel resource that sends the feedback information.
  • Determining, by the UE, a channel resource for sending the feedback information including:
  • the UE Determining, by the UE, the mapping relationship between different states in the state set of the resource indication information configured by the access network device and the different channel resources in the channel resource set according to the resource indication information a channel resource for transmitting the feedback information, where the channel resource set includes the first uplink channel resource and the second uplink channel resource.
  • the resource indication information may be included in the downlink control information for scheduling the downlink data, where the DAI of the downlink control information including the resource indication information is not 1, for example DAI is greater than 1.
  • the downlink control information for scheduling the primary carrier does not include the resource indication information, and only the resource indication information is included in the downlink control information for scheduling the secondary carrier.
  • the resource indication information may be an explicit bit in the downlink control information.
  • at least one bit in the control channel carries the resource indication information, and different status identifiers of the at least one bit adopt different PUCCH channel resources.
  • the resource indication information may also be an implicit indication manner.
  • different scrambling codes on the control channel indicate different channel resources.
  • the resource indication information may be an ACK/NACK resource indicator (abbreviation: ARI).
  • mapping relationship between the different states in the state set of the resource indication information and the different channel resources in the channel resource set configured by the access network device in advance for the UE may be as shown in Table 4:
  • the mapping relationship may be configured by the access network device to the UE by using the RRC dedicated signaling, or may be configured by the access network device to the UE by using other methods, which is not specifically limited in this embodiment of the present invention.
  • mapping relationship between the access network device and the UE is only a specific example of the mapping relationship between the access network device and the UE.
  • the mapping relationship between the access network device and the UE may be other, which is not specifically limited in this embodiment of the present invention.
  • the channel resource used to send the feedback information may be determined according to the resource indication information and the mapping relationship.
  • the second downlink subframe set includes only the downlink subframe in the first subset
  • the state of the resource indication information received by the UE is 10, according to the table Fourth, it means that the dual RB PUCCH channel resource 1 is instructed to transmit feedback information, so the UE determines to transmit the feedback information in the dual RB PUCCH format 3 channel resource 1 using the dual RB PUCCH format.
  • the UE may also find that it has missed the PDCCH scheduling the downlink subframes other than the first subset, because if there is no miss detection, it is considered that only the downlink subset of the first subset is included in the second downlink subframe set.
  • the base station will instruct the UE to use a single RB PUCCH channel resource.
  • the UE finds that the second downlink subframe set is a subset of the first subset, the single RB PUCCH format 3 is used, and once missed, the base station expects the UE to use the dual RB-PUCCH format 3 to transmit feedback information.
  • the UE actually transmits the feedback information in the single RB-PUCCH format 3, so that the problem of inconsistency with the base station is generated, which may cause the base station to decode the feedback information unsuccessfully; if the base station allocates the channel resources that it believes are not allocated to the UE.
  • the other UEs, and the current UE is used to transmit the feedback information of the channel resources of the single RB PUCCH format 3 that has been allocated to other UEs, and also cause interference to the PUCCH format 3 of other UEs. Therefore, in the embodiment, the resource indication information is used to indicate that the single RB-PUCCH format 3 or the dual RB-PUCCH format 3 is used, so that the UE uses the dual RB-PUCCH format only when the resource indication information indicates that the dual RB-PUCCH format 3 is adopted. 3 to send feedback information, thereby solving the above-mentioned PUCCH channel resource ambiguity caused by the missed control channel.
  • the resource indication information is further used to indicate a codebook size of the feedback information, and the method further includes:
  • the resource indication information may be used to indicate the codebook size of the feedback information (including the p1 corresponding to the first subset), in addition to the channel resource for indicating the sending of the feedback information.
  • the resource indication message configured by the access network device for the UE in advance
  • the mapping relationship between the different states in the state set of the information and the different codebook sizes in the codebook size set can be as shown in Table 5:
  • mapping relationship between the access network device and the UE is only a specific example of the mapping relationship between the access network device and the UE, and the mapping relationship between the access network device and the UE may be other, which is not specifically limited in this embodiment of the present invention.
  • the UE may determine the codebook size of the feedback information according to the resource indication information and the mapping relationship shown in Table 5, where the embodiment of the present invention is This will not be repeated here.
  • the resource indication information is further used to indicate a subset corresponding to the codebook size of the feedback information, where the method further includes:
  • the different codebook size in the subset set corresponding to the codebook size according to the resource indication information and the state set of the resource indication information configured by the access network device in advance for the UE And determining, by the mapping relationship of the corresponding subset, a subset corresponding to the codebook size of the feedback information, where the subset of the subset corresponding to the codebook size includes the first subset and the second subset.
  • the resource indication information may be used to indicate a subset corresponding to the codebook size of the feedback information, in addition to the channel resource for sending the feedback information, including the first sub- Set or second subset).
  • mapping relationship between the different states in the state set of the resource indication information configured by the access network device and the subset corresponding to different codebook sizes in the subset set corresponding to the codebook size may be Table 6 shows:
  • mapping relationship between the access network device and the UE is only a specific example of the mapping relationship between the access network device and the UE, and the mapping relationship between the access network device and the UE may be other, which is not specifically limited in this embodiment of the present invention.
  • the UE may determine a subset corresponding to the codebook size of the feedback information according to the resource indication information and the mapping relationship shown in Table 6. The embodiments of the invention are not described herein again.
  • mapping relationship shown in Table 4 and the mapping relationship shown in Table 5 or Table 6 may be that the access network devices are separately configured to the UE, or the access network device may be configured to the UE at the same time, for example,
  • the state 10 is used to indicate that the second uplink channel resource is used and the p1 codebook size is used, and the state 11 indicates that the second uplink channel resource is used and the q1 codebook size is used, which is not specifically limited in this embodiment of the present invention.
  • the method further includes:
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is the first uplink channel.
  • the UE sends the feedback information on the first uplink channel resource; or
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the UE is the second uplink channel.
  • the UE sends the feedback information on the second uplink channel resource.
  • the method for indicating channel resource indication information at this time is different from the scenario in which the CSI is configured to be sent.
  • the channel resource indication information at this time may be used only for indicating the channel resource for sending the feedback information, and does not need a subset for indicating the codebook size of the feedback information or the codebook size of the feedback information.
  • the UE may directly transmit the feedback information according to the size of the q1 codebook in the second uplink channel resource; if the channel resource determined by the UE according to the channel resource indication information is the first uplink channel resource, Then, the UE may directly transmit the feedback information according to the size of the q1 codebook in the first uplink channel resource.
  • the channel resource determined by the UE is The first uplink channel resource
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to the first a downlink subframe of a subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the UE is the second uplink channel resource.
  • the second downlink subframe set is a subset of the first subset.
  • the UE is not configured to transmit CSI in the uplink subframe, that is, the UE only sends feedback information, and therefore the channel resource determined by the UE is the first uplink channel resource.
  • the first subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-5
  • the second subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-10
  • the second downlink subframe set includes subframes 4, 5, 6, and 8 of carrier 1, subframes 4, 5, and 6 of carrier 3, and subframes 4 and 5 of carrier 6. That is, the second downlink subframe set includes a downlink subframe in the first subset and a downlink subframe that belongs to the second subset but does not belong to the first subset, and the second downlink subframe set is A subset of the second subset.
  • the channel resource determined by the UE is the second uplink channel resource.
  • the UE is not configured to send the CSI in the uplink subframe, and therefore, the UE sends the feedback information on the first uplink channel resource according to the codebook size corresponding to the first subset, where the UE is The second uplink channel resource is in accordance with the second subset pair Send the feedback information in the codebook size.
  • the cost of PUCCH format 3 is reduced by introducing a dynamic PUCCH format fallback mode.
  • An embodiment of the present invention provides a method for transmitting a CSI, which is specifically applied to an access network device. As shown in FIG. 6, the method includes:
  • the access network device sends downlink data to the UE.
  • the access network device determines an uplink subframe for receiving feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset.
  • the first subset is a true subset of the second subset.
  • the access network device may determine, according to a pre-configuration, an uplink subframe used to receive the feedback information.
  • the uplink subframe for receiving the feedback information may be determined by using a timing or timing correspondence between the downlink subframe and the uplink subframe, that is, the pre-configuration determination is determined according to the pre-configured uplink and downlink subframe configuration.
  • Receiving an uplink subframe of the feedback information For example, an uplink subframe that receives the feedback information may be determined according to Table 2.
  • the manner in which the access network device determines the first subset and the second subset may refer to a manner in which the UE determines the first subset and the second subset in an embodiment, and details are not described herein again.
  • the access network device determines a channel resource for receiving the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is a p codebook
  • the resource of the size format channel, the second uplink channel resource is a resource of the q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is the codebook of the feedback information corresponding to the first subset.
  • the size, q1 is the codebook size of the feedback information corresponding to the second subset, and p, q, p1, and q1 are all positive integers.
  • the related description of the p-code size channel format and the q-code size channel format, and the description of the codebook size of the feedback information corresponding to the first/second subset may be Refer to Embodiment 1, and details are not described herein again.
  • the first uplink channel resource may include n resource units
  • the second uplink channel resource may include m resource units, where m ⁇ n, m, and n are positive integers.
  • the p-code size channel format can be regarded as n resource unit channel formats
  • the q-code size channel format can be regarded as m resource unit channel formats.
  • the access network device in the uplink subframe is configured to receive r-CSI
  • the codebook size of the feedback information corresponds to the first subset
  • the access network device determines the location.
  • the channel resource is the second uplink channel resource
  • the access network device receives the feedback information and the t CSI in the r CSI on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, p1, r, t are all positive integers.
  • the codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the UE is
  • the access network device only needs to receive the feedback information according to the codebook size of the feedback information corresponding to the first subset on the second uplink channel resource.
  • the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel
  • the codebook size of the first uplink channel is smaller than the codebook size of the second uplink channel, and therefore, the second uplink channel resource
  • the maximum number of bits of the feedback information that can be carried is not limited, and the access network device can receive the feedback information not only on the second uplink channel resource, but also on the second uplink channel resource.
  • the access network device can also receive only part of the CSI in the r CSI, that is, r>t.
  • one of the packets may refer to the reception of a CSI on a certain carrier, such as the CQI on the carrier 1.
  • the receiving, or the receiving of the RI on the carrier 2, or the receiving of the sub-band CQI on the carrier 3, or the receiving of the PMI on the carrier 4, etc., is not specifically limited in this embodiment of the present invention.
  • the method may further include:
  • the access network device in the uplink subframe is configured to receive r-CSI
  • the codebook size of the feedback information corresponds to the first subset
  • the access network device determines the location.
  • the channel resource is the first uplink channel resource
  • the access network device receives the feedback information and the s CSI of the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r, s is a positive integer.
  • the access network device in the uplink subframe is configured to receive r-CSI
  • the codebook size of the feedback information corresponds to the first subset
  • the access network device determines When the channel resource is the first uplink channel resource
  • the access network device receives the feedback information on the first uplink channel resource according to the codebook size of the feedback information corresponding to the first subset.
  • the codebook size of the feedback information corresponding to the first subset is not larger than the codebook size of the first uplink channel, the maximum number of bits of the feedback information that can be carried on the first uplink channel resource is limited, and the access network device is
  • the first uplink channel resource may receive not less than 1 part of CSI, or 1 part of CSI may not be received. That is, the access network device may receive the feedback information on the first uplink channel resource, and may also receive the s CSI in the r CSIs on the first uplink channel resource, where 0 ⁇ s ⁇ r , s is a positive integer.
  • the access network device may receive only a part of the CSIs in the r CSIs sent by the UE, and may also receive all the CSIs in the r CSIs sent by the UE, which is not specifically limited in this embodiment of the present invention.
  • the method may further include:
  • the access network device in the uplink subframe is configured to receive r-CSI
  • the codebook size of the feedback information corresponds to the second subset
  • the access network device determines the location.
  • the channel resource is the second uplink channel resource
  • the access network device receives the feedback information and the s CSI of the r CSIs on the second uplink channel resource, where 0 ⁇ s ⁇ r, Q1 and s are positive integers.
  • the access network device in the uplink subframe is configured to receive the CSI
  • the codebook size of the feedback information corresponds to the second subset
  • the access network device determines When the channel resource is the second uplink channel resource
  • the access network device receives the feedback information on the second uplink channel resource according to the codebook size of the feedback information corresponding to the second subset.
  • the codebook size of the feedback information corresponding to the second subset is not larger than the codebook size of the second uplink channel, the maximum number of bits of the feedback information that can be carried on the second uplink channel resource is limited, and the access network device is
  • the second uplink channel resource may receive not less than 1 part of CSI, or 1 part of CSI may not be received. That is, the access network device may receive the feedback information on the second uplink channel resource, and may also receive the s CSI in the r CSIs on the second uplink channel resource, where 0 ⁇ s ⁇ r , s is a positive integer.
  • the access network device may also receive only part of the CSI in the r CSI sent by the UE, that is, r>s.
  • one method in order to support CA of more carriers, one method is to expand the capacity of the current PUCCH format 3, for example, from one RB to multiple RBs.
  • the capacity of the current PUCCH format 3 for example, from one RB to multiple RBs.
  • the access network device sends downlink data to the UE (step S601), which may specifically include:
  • the access network device sends downlink data to the UE in a downlink subframe included in the second downlink subframe set, where
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the second downlink subframe set may be a scheduling set or an active set.
  • the second downlink subframe set may be a scheduling set or an active set.
  • the embodiments in the present invention are all described as assuming that the second downlink subframe set is the actual scheduled downlink subframe set, the same applies to the second downlink subframe set being the activated downlink. In the case of the subframe set, the embodiment of the present invention does not specifically limit this.
  • the access network device in the uplink subframe is configured with r-CSI reception, and the second downlink subframe set is a subset of the first subset, the access network The channel resource determined by the device is the first uplink channel resource or the Second uplink channel resource; or,
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but a downlink subframe that does not belong to the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the access network device is the second Upstream channel resources.
  • the second downlink subframe set is a subset of the first subset.
  • the channel resource determined by the access network device may be the first uplink channel resource or the second uplink channel resource.
  • the first subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-5
  • the second subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-10
  • the second downlink subframe set includes subframes 4, 5, 6, and 8 of carrier 1, subframes 4, 5, and 6 of carrier 3, and subframes 4 and 5 of carrier 6. That is, the second downlink subframe set includes a downlink subframe in the first subset and a downlink subframe that belongs to the second subset but does not belong to the first subset, and the second downlink subframe set is A subset of the second subset.
  • the channel resource determined by the access network device is the second uplink channel resource.
  • the method further includes:
  • the access network device sends resource indication information to the UE, where the resource indication information is used to indicate channel resources for transmitting the feedback information.
  • the resource indication information is further used to indicate a codebook size of the feedback information; or the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information.
  • the access network device determines a letter for receiving the feedback information After the channel resources, it also includes:
  • the access network device in the uplink subframe is not configured to receive CSI, the codebook size of the feedback information is corresponding to the first subset, and the channel resource determined by the access network device For the first uplink channel resource, the access network device receives the feedback information on the first uplink channel resource; or
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the access network device is And the second uplink channel resource, where the access network device receives the feedback information on the second uplink channel resource.
  • the access network device in the uplink subframe is not configured to receive CSI, and the second downlink subframe set is a subset of the first subset, the access network device determines The channel resource is the first uplink channel resource; or
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the access network device is the second uplink channel Resources.
  • the second downlink subframe set is a subset of the first subset.
  • the access network device in the uplink subframe is not configured to receive CSI, that is, the access network device only needs to receive feedback information, so the channel resource determined by the access network device is The first uplink channel resource.
  • the first subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-5
  • the second subset consists of downlink subframes 4, 5, 6, and 8 of carrier 1-10
  • the second downlink subframe set includes subframes 4, 5, 6, and 8 of carrier 1, subframes 4, 5, and 6 of carrier 3, and subframes 4 and 5 of carrier 6. That is, the second downlink subframe set includes a downlink subframe in the first subset and a downlink that belongs to the second subset but does not belong to the first subset. a subframe, and the second downlink subframe set is a subset of the second subset.
  • the channel resource determined by the access network device is the second uplink channel resource.
  • the access network device in the uplink subframe is not configured to receive CSI, and therefore, the access network device follows the codebook size corresponding to the first subset on the first uplink channel resource. Receiving the feedback information, the access network device may receive the feedback information on the second uplink channel resource according to the codebook size corresponding to the second subset.
  • the cost of PUCCH format 3 is reduced by introducing a dynamic PUCCH format fallback mode.
  • the embodiment of the present invention provides a UE 900.
  • the UE 900 includes: a receiving module 901, a processing module 902, and a sending module 903.
  • the receiving module 901 is configured to receive downlink data sent by the access network device.
  • the processing module 902 is configured to determine an uplink subframe for transmitting feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset The first subset is a true subset of the second subset;
  • the processing module 902 is further configured to determine a channel resource used to send the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is The resource of the p code size format channel, the second uplink channel resource is a resource of the q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is the feedback information corresponding to the first subset.
  • the codebook size, q1 is the codebook size of the feedback information corresponding to the second subset, and p, q, p1, and q1 are all positive integers.
  • the sending module 903 is configured to: if the UE 900 is configured to send the C-CSI in the uplink subframe, the codebook size of the feedback information corresponds to the first subset, and the processing module 902 determines
  • the channel resource is the second uplink channel resource, and the feedback information and the t CSI in the r CSI are sent on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, Both r and t are positive integers.
  • the sending module 903 is further configured to: after the processing module 902 determines the channel resource used to send the feedback information, if the UE 900 in the uplink subframe is configured to send the CSI,
  • the codebook size of the feedback information corresponds to The first subset, and the channel resource determined by the processing module 902 is the first uplink channel resource, and the feedback information and the s in the r CSI are sent on the first uplink channel resource.
  • Part CSI, 0 ⁇ s ⁇ r, s is a positive integer.
  • the sending module 903 is further configured to: after the processing module 902 determines the channel resource used to send the feedback information, if the UE 900 in the uplink subframe is configured to send the CSI,
  • the codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the processing module 902 is the second uplink channel resource, and the feedback is sent on the second uplink channel resource.
  • the receiving module 901 is specifically configured to:
  • the downlink data is received in a downlink subframe included in the second downlink subframe set.
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE 900 in the first downlink subframe set.
  • the processing module 902 determines the location
  • the channel resource is the first uplink channel resource or the second uplink channel resource.
  • the second downlink subframe set includes the downlink subframe in the first subset and belongs to the second subset but not a downlink subframe that belongs to the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module 902 is the second uplink channel Resources.
  • the receiving module 901 is further configured to: before the processing module 902 determines a channel resource for sending the feedback information, receive resource indication information sent by the access network device, where the resource indication information is used by the The channel resource indicating the sending of the feedback information.
  • the determining module is specifically configured to:
  • the resource indication information is further used to indicate a codebook size of the feedback information.
  • the processing module 902 is further configured to use, according to the resource indication information, a different state in the state set of the resource indication information configured by the access network device and configured by the access network device, and a different code in the codebook size set. And determining, by the mapping relationship of the size, the codebook size of the feedback information, where the codebook size set includes a codebook size corresponding to the first subset and a codebook size corresponding to the second subset.
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information.
  • the processing module 902 is further configured to: according to the resource indication information, and a subset of different states in the state set of the resource indication information configured by the access network device for the UE 900, corresponding to a codebook size Determining, by the mapping relationship of the subset of the different codebook sizes in the set, the subset corresponding to the codebook size of the feedback information, where the subset of the subset corresponding to the codebook size includes the first subset and the The second subset is described.
  • the sending module 903 is further configured to: after the processing module 902 determines a channel resource for sending the feedback information, if the UE 900 in the uplink subframe is not configured to send CSI, The codebook size of the feedback information corresponds to the first subset, and the channel resource determined by the processing module 902 is the first uplink channel resource, and the feedback information is sent on the first uplink channel resource.
  • the sending module 903 is further configured to: after the processing module 902 determines the channel resource used to send the feedback information, if the UE900 in the uplink subframe is not configured to send CSI, the feedback The codebook size of the information corresponds to the second subset, and the channel resource determined by the processing module 902 is the second uplink. a channel resource, where the feedback information is sent on the second uplink channel resource.
  • the channel determined by the processing module 902 The resource is the first uplink channel resource.
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset but does not belong to the a downlink subframe of the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module 902 is the second uplink channel resource.
  • the receiving module 901 may be specifically implemented by a receiver; the sending module 903 may be specifically implemented by a transmitter; and the processing module 902 may be implemented by using a processor.
  • the processor, the receiver, and the transmitter can communicate with each other, which is not specifically limited in this embodiment of the present invention.
  • the method for transmitting the CSI by the UE 900 provided by the embodiment of the present invention can be referred to the description of the first embodiment, and details are not described herein again.
  • the UE 900 of the present embodiment can be used to perform the foregoing method. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiments, and details are not described herein again.
  • An embodiment of the present invention provides an access network device 1000.
  • the access network device 1000 includes: a sending module 1001, a processing module 1002, and a receiving module 1003.
  • the sending module 1001 is configured to send downlink data to the user equipment UE.
  • the processing module 1002 is configured to determine an uplink subframe for receiving feedback information of the downlink data, where the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset The first subset is a true subset of the second subset;
  • the processing module 1002 is further configured to determine a channel resource for receiving the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource, where the first uplink channel resource is p codebook size format channel
  • the source, the second uplink channel resource is a resource of a q codebook size format channel, q>p, q ⁇ q1, p ⁇ p1, and p1 is a codebook size of the feedback information corresponding to the first subset, and q1 is The codebook size of the feedback information corresponding to the second subset, p, q, p1, and q1 are all positive integers.
  • the receiving module 1003 is configured to: if the access network device 1000 in the uplink subframe is configured to receive r-CSI, the codebook size of the feedback information corresponds to the first subset, and the The channel resource determined by the processing module 1002 is the second uplink channel resource, and the feedback information and the t CSI in the r CSI are received on the second uplink channel resource, r ⁇ 2, 2 ⁇ t ⁇ r, p1, r, t are all positive integers.
  • the receiving module 1003 is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, if the access network device 1000 in the uplink subframe is configured with r shares The CSI is received, the codebook size of the feedback information is corresponding to the first subset, and the channel resource determined by the processing module 1002 is the first uplink channel resource, and is on the first uplink channel resource. Receiving the feedback information and the s CSI in the r CSI, 0 ⁇ s ⁇ r, s is a positive integer.
  • the receiving module 1003 is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, if the access network device 1000 in the uplink subframe is configured with r shares The CSI is received, the codebook size of the feedback information is corresponding to the second subset, and the channel resource determined by the processing module 1002 is the second uplink channel resource, and is on the second uplink channel resource.
  • Receiving the feedback information and the s CSI in the r CSI, 0 ⁇ s ⁇ r, q1, s are positive integers.
  • the sending module 1001 is specifically configured to:
  • the second downlink subframe set is composed of all downlink subframes scheduled in the first downlink subframe set;
  • the second downlink subframe set is composed of downlink subframes on all carriers activated by the UE in the first downlink subframe set.
  • the access network device 1000 in the uplink subframe is configured with r
  • the CSI is received, and the second downlink subframe set is a subset of the first subset, and the channel resource determined by the processing module 1002 is the first uplink channel resource or the second uplink.
  • Channel resources or,
  • the second downlink subframe set includes a downlink subframe in the first subset and belongs to the second subset But the downlink subframe that does not belong to the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module 1002 is the second Upstream channel resources.
  • the sending module 1001 is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, send resource indication information to the UE, where the resource indication information is used to indicate a transmission station.
  • the channel resource of the feedback information is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, send resource indication information to the UE, where the resource indication information is used to indicate a transmission station. The channel resource of the feedback information.
  • the resource indication information is further used to indicate a codebook size of the feedback information.
  • the resource indication information is further used to indicate a subset corresponding to a codebook size of the feedback information.
  • the receiving module 1003 is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, if the access network device 1000 in the uplink subframe is not configured with CSI Receiving, the codebook size of the feedback information is corresponding to the first subset, and the channel resource determined by the processing module 1002 is the first uplink channel resource, and the first uplink channel resource is received on the first uplink channel resource. Feedback information; or,
  • the receiving module 1003 is further configured to: after the processing module 1002 determines a channel resource for receiving the feedback information, if the access network device 1000 in the uplink subframe is not configured to receive CSI, The codebook size of the feedback information corresponds to the second subset, and the channel resource determined by the processing module 1002 is the second uplink channel resource, and the feedback information is received on the second uplink channel resource. .
  • the channel resource determined by the processing module 1002 is the first uplink channel resource
  • the second downlink subframe set includes the downlink subframe in the first subset and belongs to the second subset but not a downlink subframe that belongs to the first subset, and the second downlink subframe set is a subset of the second subset, and the channel resource determined by the processing module 1002 is the second uplink channel. Resources.
  • the method for transmitting the CSI by the access network device 1000 provided by the embodiment of the present invention may be referred to the description of the second embodiment, and details are not described herein again.
  • the access network device 1000 of the present embodiment can be used to perform the foregoing method. Therefore, the technical effects that can be obtained can also be referred to the description of the foregoing method embodiments, and details are not described herein again.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

Abstract

本发明实施例提供一种信道状态信息的传输方法、用户设备及接入网设备,以至少解决现有技术中无法实现多份CSI同时传输的问题。方法包括:UE接收接入网设备发送的下行数据;UE确定用于发送下行数据的反馈信息的上行子帧,其中,上行子帧关联的第一下行子帧集合包括第一子集和第二子集,第一子集为第二子集的真子集;以及UE确定用于发送反馈信息的信道资源,其中,信道资源包括第一上行信道资源或第二上行信道资源;若上行子帧中UE被配置了r份CSI的发送,反馈信息的码本尺寸对应第一子集,且UE确定的信道资源为第二上行信道资源,UE在第二上行信道资源上发送反馈信息和r份CSI中的t份CSI。

Description

一种信道状态信息的传输方法、用户设备及接入网设备 技术领域
本发明涉及通信领域,尤其涉及一种信道状态信息(Channel State Information,简称:CSI)的传输方法、用户设备(User Equipment,简称:UE)和接入网设备。
背景技术
随着移动通信技术的发展,未来的移动通信系统将提供更高的数据速率传输和更广的业务覆盖。载波聚合(Carrier Aggregation,简称:CA)作为一种常见的传输方式,在移动通信领域应用越来越广泛。CA的思想为:接入网设备给某个支持载波聚合的UE配置并提供多个载波进行上下行通信,从而支持更高数据速率的传输。其中,载波包括主载波和辅载波。
现有的长期演进(Long Term Evolution,简称:LTE)CA系统中,每个聚合载波可以独立配置周期性的CSI,该周期性的CSI承载在物理上行控制信道(Physical Uplink Control Channel,简称:PUCCH)上反馈给接入网设备。但是,由于PUCCH的容量受限,每个子帧最多只允许上报一个载波的一份CSI至接入网设备,若多份周期性CSI同时被配置在相同的子帧上,则UE会按照预配置的优先级进行丢弃,最终仅给接入网设备反馈优先级最高的一份CSI。这样,将导致有些载波的CSI一直无法反馈至接入网设备,或者反馈的周期被拉长,最终导致下行数据调度性能下降。当CA系统中引入更多载波的CA时,由于需要反馈的确认(ACKnowledge,简称:ACK)或不确认(NACKnowledge,简称:NACK)信息增多,PUCCH的容量更加受限,从而上述情况将更加严重。
因此,如何实现多份CSI同时传输是目前亟待解决的问题。
发明内容
本发明实施例提供一种CSI的传输方法、用户设备及接入网设 备,以至少解决现有技术中无法实现多份CSI同时传输的问题,能够提供实现多份CSI同时传输的相关解决方案。
为达到上述目的,本发明的实施例采用如下技术方案:
第一方面,提供一种信道状态信息CSI的传输方法,所述方法包括:
用户设备UE接收接入网设备发送的下行数据;
所述UE确定用于发送所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
所述UE确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,r、t均为正整数。
在第一方面第一种可能的实现方式中,结合第一方面,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
在第一方面第二种可能的实现方式中,结合第一方面或第一方面第二种可能的实现方式,在所述UE确定用于发送所述反馈信息 的信道资源之后,还包括:
若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,其中,0≤s≤r,s为正整数。
在第一方面第三种可能的实现方式中,结合第一方面至第一方面第二种可能的实现方式,所述UE接收接入网设备发送的下行数据,包括:
所述UE在第二下行子帧集合包括的下行子帧中接收所述下行数据;其中,
所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
在第一方面第四种可能的实现方式中,结合第一方面第三种可能的实现方式,若所述上行子帧中所述UE被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
若所述上行子帧中所述UE被配置了r份CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
在第一方面第五种可能的实现方式中,结合第一方面至第一方面第四种可能的实现方式,在所述UE确定用于发送所述反馈信息的信道资源之前,还包括:
所述UE接收所述接入网设备发送的资源指示信息,所述资源 指示信息用于指示发送所述反馈信息的信道资源;
所述UE确定用于发送所述反馈信息的信道资源,包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
在第一方面第六种可能的实现方式中,结合第一方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸;
所述方法还包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
在第一方面第七种可能的实现方式中,结合第一方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集;
所述方法还包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
在第一方面第八种可能的实现方式中,结合第一方面第三种可能的实现方式至第一方面第七种可能的实现方式,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息 的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息;或者,
若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息。
在第一方面第九种可能的实现方式中,结合第一方面第八种可能的实现方式,若所述上行子帧中所述UE未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述UE未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
第二方面,提供一种用户设备UE,所述UE包括:接收模块、处理模块、以及发送模块;
所述接收模块,用于接收接入网设备发送的下行数据;
所述处理模块,用于确定用于发送所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
所述处理模块,还用于确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
所述发送模块,用于若所述上行子帧中所述UE被配置了r份信 道状态信息CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,r、t均为正整数。
在第二方面第一种可能的实现方式中,结合第二方面,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
在第二方面第二种可能的实现方式中,结合第二方面或第二方面第二种可能的实现方式,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,其中,0≤s≤r,s为正整数。
在第二方面第三种可能的实现方式中,结合第二方面至第二方面第二种可能的实现方式,所述接收模块具体用于:
在第二下行子帧集合包括的下行子帧中接收所述下行数据;其中,
所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
在第二方面第四种可能的实现方式中,结合第二方面第三种可能的实现方式,若所述上行子帧中所述UE被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模 块确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
若所述上行子帧中所述UE被配置了r份CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
在第二方面第五种可能的实现方式中,结合第二方面至第二方面第四种可能的实现方式,所述接收模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之前,接收所述接入网设备发送的资源指示信息,所述资源指示信息用于指示发送所述反馈信息的信道资源;
所述确定模块具体用于:
根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
在第二方面第六种可能的实现方式中,结合第二方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸;
所述处理模块,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
在第二方面第七种可能的实现方式中,结合第二方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集;
所述处理模块,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
在第二方面第八种可能的实现方式中,结合第二方面第三种可能的实现方式至第二方面第七种可能的实现方式,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息;或者,
所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息。
在第二方面第九种可能的实现方式中,结合第二方面第八种可能的实现方式,若所述上行子帧中所述UE未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述UE未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
基于本发明实施例提供的CSI的传输方法及UE,由于本发明实施例中,当所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信 道资源为所述第二上行信道资源时,UE在第二上行信道资源上仅需按照第一子集对应的反馈信息的码本尺寸发送反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,第一上行信道的码本尺寸小于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数不受限,UE不仅可以在所述第二上行信道资源上发送所述反馈信息,还可以在所述第二上行信道资源上发送所述r份CSI中的t份CSI,r≥2,2≤t≤r。即,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,从而实现多份CSI同时传输。
第三方面,提供一种信道状态信息CSI的传输方法,所述方法包括:
接入网设备发送下行数据给用户设备UE;
所述接入网设备确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
所述接入网设备确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
在第三方面第一种可能的实现方式中,结合第三方面,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
在第三方面第二种可能的实现方式中,结合第三方面或第三方面第一种可能的实现方式,在所述接入网设备确定用于接收所述反馈信息的信道资源后,还包括:
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
在第三方面第三种可能的实现方式中,结合第三方面至第三方面第二种可能的实现方式,所述接入网设备发送下行数据给用户设备UE,包括:
所述接入网设备在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE;其中,
所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
在第三方面第四种可能的实现方式中,结合第三方面第三种可能的实现方式,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述 第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
在第三方面第五种可能的实现方式中,结合第三方面至第三方面第四种可能的实现方式,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
所述接入网设备发送资源指示信息给所述UE,所述资源指示信息用于指示传输所述反馈信息的信道资源。
在第三方面第六种可能的实现方式中,结合第三方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
在第三方面第七种可能的实现方式中,结合第三方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
在第三方面第八种可能的实现方式中,结合第三方面第三种可能的实现方式至第三方面第七种可能的实现方式,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息;或者,
若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息。
在第三方面第九种可能的实现方式中,结合第三方面第八种可能的实现方式,若所述上行子帧中所述接入网设备未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述接入网设备未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
第四方面,提供一种接入网设备,所述接入网设备包括:发送模块、处理模块、接收模块;
所述发送模块,用于发送下行数据给用户设备UE;
所述处理模块,用于确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
所述处理模块,还用于确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
所述接收模块,用于若所述上行子帧中所述接入网设备被配置了r份信道状态信息CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
在第四方面第一种可能的实现方式中,结合第四方面,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
在第四方面第二种可能的实现方式中,结合第四方面或第四方面第一种可能的实现方式,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源后,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
在第四方面第三种可能的实现方式中,结合第四方面至第四方面第二种可能的实现方式,所述发送模块具体用于:
在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE;其中,
所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
在第四方面第四种可能的实现方式中,结合第四方面第三种可能的实现方式,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
在第四方面第五种可能的实现方式中,结合第四方面至第四方面第四种可能的实现方式,所述发送模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,发送资源指示信息给所述UE,所述资源指示信息用于指示传输所述反馈信息的信道资 源。
在第四方面第六种可能的实现方式中,结合第四方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
在第四方面第七种可能的实现方式中,结合第四方面第五种可能的实现方式,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
在第四方面第八种可能的实现方式中,结合第四方面第三种可能的实现方式至第四方面第七种可能的实现方式,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息;或者,
所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息。
在第四方面第九种可能的实现方式中,结合第四方面第八种可能的实现方式,若所述上行子帧中所述接入网设备未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述接入网设备未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
基于本发明实施例提供的CSI的传输方法及接入网设备,由于 本发明实施例中,当所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源时,接入网设备在第二上行信道资源上仅需按照第一子集对应的反馈信息的码本尺寸接收反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,第一上行信道的码本尺寸小于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数不受限,接入网设备不仅可以在所述第二上行信道资源上接收所述反馈信息,还可以在所述第二上行信道资源上接收所述r份CSI中的t份CSI,r≥2,2≤t≤r。即,接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,从而实现多份CSI同时传输。
附图说明
图1为本发明实施例提供的一种PUCCH格式3的信道结构示意图;
图2为本发明实施例提供的CA系统架构示意图;
图3为本发明实施例提供的CSI的传输方法流程示意图一;
图4为本发明实施例提供的CSI的传输方法流程示意图二;
图5为本发明实施例提供的CSI的传输方法流程示意图三;
图6为本发明实施例提供的CSI的传输方法流程示意图四;
图7为本发明实施例提供的CSI的传输方法流程示意图五;
图8为本发明实施例提供的CSI的传输方法流程示意图六;
图9为本发明实施例提供的UE结构示意图;
图10为本发明实施例提供的接入网设备结构示意图。
具体实施方式
为了下述各实施例的描述清楚简洁,首先给出相关背景的简要介绍如下:
LTE系统下行基于正交频分复用多址(Orthogonal Frequency Division Multiplexing Access,简称:OFDMA),时频资源被划分成时间域维度上的OFDMA符号(下称时域符号)和频率域维度上的子 载波;上行基于单载波频分复用多址(Single Carrier-Frequency Division Multiplexing Access,简称:SC-FDMA),时频资源被划分成时间域维度上的SC-FDMA符号(下称时域符号)和频率域维度上的子载波,而最小的资源粒度称作一个资源单位(Resource Element,简称:RE),即表示时间域上的一个时域符号和频率域上的一个子载波组成的时频格点。
LTE系统中业务的传输是基于基站调度的,调度的基本时间单位是一个子帧,一个子帧包括多个时域符号。具体的调度流程包括:基站通过控制信道(比如物理下行控制信道(Physical Downlink Control Channel,简称:PDCCH)或增强的物理下行控制信道(Enhanced PDCCH简称:EPDCCH))发送物理下行共享信道(Physical Downlink Shared Channel,简称:PDSCH)或物理上行共享信道(Physical Uplink Shared Channel,简称:PUSCH)的调度信息,该调度信息包括资源分配信息,调整编码方式等控制信息。UE在子帧中检测控制信道,并根据检测出的控制信道中承载的调度信息接收下行数据或发送上行数据。
LTE系统支持频分双工(Frequency Duplexing Division,简称:FDD)和时分双工(Time Duplexing Division,简称:TDD)两种双工方式。对于FDD系统,下行和上行在不同的载波上传输。对于TDD系统,上行和下行在同一载波的不同时间上传输。具体在一个载波上包括下行子帧,上行子帧和特殊子帧,其中,特殊子帧中包括下行导频时隙(Downlink Pilot Time Slot,简称:DwPTS),保护时间(Guard Period,GP)和上行导频时隙(Uplink Pilot Time Slot,简称:UpPTS)三个部分,GP主要用于下行到上行的转换时间和传播时延的补偿。此外,DwPTS中可以传输下行数据,但UpPTS中不可以传输上行数据。LTE当前支持7种不同的TDD上下行配置,如表一所示,其中D表示下行子帧,S表示特殊子帧,U表示上行子帧。
表一
Figure PCTCN2015074783-appb-000001
LTE系统采用混合自动重传请求(Hybrid Automatic Repeat Request,简称:HARQ)机制。以下行为例,UE接收到PDSCH承载的数据之后,若接收正确,则UE在PUCCH上反馈ACK信息;若接收不正确,则在PUCCH上反馈NACK信息。对于FDD,UE在子帧n-4接收到PDSCH承载的数据之后,会在子帧n反馈ACK信息或NACK信息;对于TDD,PDSCH与其对应的ACK信息或NACK信息的时序关系如表二所示。其中,标数字的子帧为用于反馈ACK信息或NACK信息的上行子帧n,标识的数字表示在该上行子帧n中需要反馈n-k(k属于K)的下行子帧集合中的PDSCH所对应的ACK信息或NACK信息,例如上下行配置1的子帧n=2中的K={7、6}表示上行子帧n=2用来反馈n-7和n-6这两个下行子帧上的PDSCH所对应的ACK信息或NACK信息,具体n-7为下行子帧5,n-6为下行子帧6。
表二
Figure PCTCN2015074783-appb-000002
Figure PCTCN2015074783-appb-000003
LTE系统还支持CA技术,即接入网设备给某个支持载波聚合的UE配置并提供多个载波进行上下行通信,从而支持更高数据速率的传输。进行CA时,基站发送的多个载波在发送时间上是同步的,UE可以分别检测调度每个载波的PDCCH和相应的PDSCH,其中每个载波的具体检测过程与上述单载波情况类似。LTE系统支持FDD CA,TDD CA以及FDD+TDD CA。对于TDD CA,又分为相同上下行配置的TDD CA和不同上下行配置的TDD CA。CA模式下有一个主载波和至少一个辅载波,且PUCCH承载的ACK信息或NACK信息只在UE的主载波上发送。
CA模式下PUCCH的一种发送模式为PUCCH格式3模式,如图1所示,PUCCH格式3模式采用离散傅里叶变换(Discrete Fourier Transform,简称:DFT)扩展正交频分复用(DFT-Spread-OFDM,简称:DFT-S-OFDM)的发送结构。最多可以支持22个编码前比特的传输。例如,以当前网络中主流部署的TDD上下行配置2为例,一个载波的上行子帧2可以支持4个ACK信息或NACK信息比特的反馈,5个载波的TDD上下行配置2的CA可以支持20个ACK信息或NACK信息比特的反馈。具体的,原始ACK信息或NACK信息的比特(比如20个比特)进行里德穆勒(Reed Muller,简称:RM)信道编码后生成48个编码后比特,之后进行加扰,并调制成24个正交相移键控(Quadrature Phase Shift Keying,简称:QPSK)符号,分别放到一个子帧的两个时隙中。这样,每个时隙上有12个QPSK符号,具体放在该时隙的一个时域符号上的12个连续子载波上,也就是占用一个资源块(Resource Block,简称:RB)中的一个时域符号上的12个子载波。然后,针对每个时隙,在时域进行长度为5 的正交掩码(Orthogonal Cover Code,简称:OCC)扩频,分别占一个RB内的5个时域符号,不同的UE可以在一个RB上通过不同的OCC进行码分复用,其余两个符号用来承载参考信号(Reference Signal,简称:RS)。最后,进行DFT预编码,并发送给基站。
当前LTE系统中,如果配置了PUCCH格式3模式的发送模式,具体的数据调度和PUCCH信道资源的指示方式如下:
以配置了5个FDD下行载波为例,如果UE只收到主PDCCH承载的主载波上的PDSCH的调度信息,则使用PUCCH格式1a/1b来反馈ACK信息或NACK信息,该PUCCH格式1a/1b的信道资源通过该主PDCCH的控制信道单元(Control Channel Element,简称:CCE)标号来隐式对应;如果UE只收到辅PDCCH承载的辅载波上的PDSCH的调度信息,则使用PUCCH格式3来反馈ACK信息或NACK信息,该PUCCH格式3的信道资源通过该辅PDCCH中的两比特字段来显示指示。具体的,高层无线资源控制(Radio Resource Control,简称:RRC)信令会预先分配4个PUCCH格式3的信道资源,具体每次调度使用该4个信道资源中的哪一个由上述辅PDCCH中的两比特来指示。
当前的PUCCH格式3模式还支持TDD单载波的ACK信息或NACK信息反馈,具体流程为:如果UE只收到主PDCCH承载的主载波上的PDSCH的调度信息,且该主PDCCH中的下行分配索引(Downlink Assignment Index,简称:DAI)字段指示为‘1’,则使用PUCCH格式1a/1b来反馈ACK信息或NACK信息,该PUCCH格式1a/1b的信道资源通过该主PDCCH的CCE标号来隐式对应;如果UE只收到主PDCCH承载的主载波上的PDSCH的调度信息,且该主PDCCH中的DAI字段指示的值大于‘1’,则使用PUCCH格式3来反馈ACK信息或NACK信息,该PUCCH格式3的信道资源通过包含大于1的DAI取值的该主PDCCH中的两比特字段来显示指示。
上述支持PUCCH格式1a/1b的回退模式的ACK信息或NACK信息传输,是为了降低PUCCH格式3的开销,因为PUCCH格式3在一个 RB中只能码分复用5个UE,而PUCCH格式1a/1b在一个RB内可以码分复用最多36个UE,因此可以尽量降低PUCCH格式3的资源开销。
其次,给出本发明实施例的系统架构及场景如下:
以本发明实施例中的接入网设备具体为基站为例,如图2所示,则本发明实施例的系统架构仍基于当前的CA架构,由基站以及多个UE组成。其中,该CA架构中可以引入更多载波的CA,或者保持当前5载波的CA,但可以支持多个上下行配置5的载波;或者,支持两个以上只有下行子帧的TDD载波,或者上述不同上下行配置的载波的组合,本发明实施例对此不作具体限定。
需要说明的是,本发明实施例中的接入网设备还可能为其它,比如无线网络控制器,本发明实施例对此不作具体限定。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例一、
本发明实施例提供一种CSI的传输方法,具体应用在如图2所示的UE上,如图3所示,包括:
S301、UE接收接入网设备发送的下行数据。
S302、所述UE确定用于发送所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集。
S303、所述UE确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对 应的反馈信息的码本尺寸,p、q、p1、q1均为正整数。
S304、若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,其中,r≥2,2≤t≤r,p1、r、t均为正整数。
具体的,在本发明实施例步骤S302中,反馈信息用于指示UE是否正确接收到下行数据,例如,若正确接收到下行数据,该反馈信息可以是用ACK指示;若未正确接收到下行数据,该反馈信息可以用NACK指示。当然,本发明实施例中的反馈信息也可以为其他信息,本发明实施例对此并不限定。
具体的,UE在接收到接入网设备发送的下行数据之后,可以通过预先配置的下行子帧与上行子帧的时序或定时对应关系确定用于发送所述反馈信息的上行子帧,也即根据预先配置的上下行子帧配置确定预先配置确定用于发送所述反馈信息的上行子帧。例如,可以根据表二确定发送所述反馈信息的上行子帧。
其中,所述上行子帧关联的第一下行子帧具体是指,该第一下行子帧中被调度的下行数据所对应的反馈信息需要在该上行子帧中反馈。该第一下行子帧是通过预先配置的下行子帧与上行子帧的时序或定时对应关系确定的,也即根据预先配置的上下行子帧配置确定。例如,可以根据表二确定与上行子帧关联的第一下行子帧。
需要说明的是,这里提到的下行子帧对于TDD来讲,包括真正的下行子帧和特殊子帧,因为如上所述,特殊子帧中也可以传输下行数据,但不可以传输上行数据,且特殊子帧中传输的下行数据也是要有对应的反馈信息,因此可以把特殊子帧归属于下行子帧,用于本发明的实施例中。
具体的,本发明实施例将用于传输反馈信息的上行子帧所关联的所有下行子帧的集合称为第一下行子帧集合,该第一下行子帧集合包括至少两个子集,即第一子集和第二子集。其中,所述所有下 行子帧是指为UE配置的所有载波上的配置在该上行子帧上发送反馈信息的所有下行子帧。例如,UE被接入网设备配置了15个载波,并为该15个载波配置了相同上下行子帧配置2(详见表一和表二),则所述上行子帧可以为子帧2,与该上行子帧关联的所有下行子帧即第一下行子帧集合包括15个载波上的下行子帧4、5、6和8。
具体的,该第一下行子帧集合可以是接入网设备通过RRC信令配置给UE的,也可以是接入网设备通过其它方式配置给UE的,本发明实施例对此不作具体限定。
需要说明的是,本发明实施例以第一下行子帧集合包括两个子集为例进行说明,但是并不限于两个集合,还可以是大于两个集合,比如,如果接入网设备为UE配置了15个载波,则这些载波对应的下行子帧可以被划分到3个子集,或者4个子集,当然也可以被划分到更多个集合,本发明实施例对此不作具体限定。
需要说明的是,本发明实施例中,如果A是B的子集,则A可以包含B的部分元素,也可以包含B的全部元素。比如,第二子集为第一下行子帧集合的子集,则第二子集可以包含第一下行子帧集合的全部下行子帧,也可以仅包含第一下行子帧集合的部分下行子帧。而本发明实施例中,如果A是B的真子集,则A只能包含B的部分元素。比如,第一子集是第二子集的真子集,则第一子集包含第一下行子帧集合的部分下行子帧。当然,对于不属于第二子集的第一下行子帧集合中的下行子帧,可以参照本发明实施例中的第一子集和第二子集的方法,本发明实施例对此不作具体限定。
具体的,UE可以根据预先配置确定该第一子集和第二子集。以TDD CA为例,这里假设不同载波上具有相同子帧号的子帧为不同的下行子帧。则预先配置的第一子集可以包括载波1至5的下行子帧4、5、6和8,第二子集可以包括载波1至10的下行子帧4、5、6和8,可以看到第二子集完全包含第一子集。而如上所述,本发明实施例还可以包括第三子集,具体包括载波1-15的下行子帧4、5、6和8,即第三子集为接入网设备为UE配置的在某上行子帧上发送 的反馈信息所关联的所有预配置的下行子帧,即为一个全集,也就是上述第一下行子帧集合。可以看到,第一子集与第二子集的关系、与第二子集与第三子集的关系、以及第一子集与第三子集的关系都是结构类似的。因此,本发明实施例的方案可以直接扩展到第二子集与第三子集,以及第一子集与第三子集。当然,本发明实施例还可以采用其他方式,此处不再赘述。
可选的,UE还可以通过预配置的规则来确定第一子集和第二子集。比如,预配置的规则可以是根据载波标号和子帧标号以及反馈信息的比特数阈值限制(比如20比特或21比特或22比特)确定上述第一子集和第二子集。这样,UE确定第一子集包括载波1至5的下行子帧4、5、6和8,第二子集包括载波1至10的下行子帧4、5、6和8。上述第一子集的选取方法是按照先时域子帧标号的顺序把载波1的下行子帧选取完,再基于频域载波标号继续选取载波2的下行子帧,一直取到阈值所限定的下行子帧个数;第二子集的选取方式类似于第一子集。又例如,假设上述阈值为10,还是以5个载波且每个载波都为子帧配置2为例,一种集合划分方式为,第一子集包括载波1至2的下行子帧4、5、6和8,以及载波3的下行子帧4和5,第二子集除了包括第一子集的全部下行子帧之外,还包括载波3的下行子帧6和8,以及载波4至5的下行子帧4、5、6和8,此时一个载波上的不同子帧可以被划分到不同的下行子帧集合中。可以看到,该示例中还是按照先时域子帧号再频域载波号的方式来选取第一子集和第二子集。
又如,预配置的规则可以是根据载波标号和子帧标号以及反馈信息的比特数阈值限制(比如20比特或21比特或22比特),确定不超过阈值的最大载波数内的下行子帧为某个集合。这种规则中,由于同一载波上的不同子帧不可以划分到多个不完全相交集合中,可能会出现某集合中的下行子帧数少于上述阈值的情况。比如,第一子集包括载波1至2的下行子帧4、5、6和8,第二子集除了包括第一子集的全部下行子帧之外,还包括载波3至5的下行子帧4、5、 6和8。
当然,预配置的规则还可以按照先频域载波标号再时域子帧标号的顺序,并结合反馈信息的比特数阈值来选取第一子集和第二子集,本发明实施例对此不作具体限定。
可以看到,预配置的规则可以有很多种,只要能够实现本发明实施例目的的预配置的规则均可以应用于本发明实施例中,此处不再赘述。
可选的,UE还可以通过接入网设备发送的信令来确定上述第一子集和第二子集。其中,接入网设备可以将划分规则通过信令通知给UE,也可以直接通知UE第一子集和第二子集,本发明实施例对此不作具体限定。
当然,上述仅是示例性的提供几种UE确定第一子集和第二子集的实现方式,当然,UE还可以通过其他方式确定第一子集和第二子集,本发明实施例对此不作具体限定。
具体的,在本发明实施例的步骤S304中,p码本尺寸信道格式是指该信道格式可以最大支持p码本尺寸的反馈信息的反馈,q码本尺寸信道格式是指该信道格式可以最大支持q码本尺寸的反馈信息的反馈。其中,码本尺寸是指反馈信息编码前的原始比特数。
具体的,第一子集对应的反馈信息的码本尺寸是指由第一子集包括的下行子帧数确定的反馈信息的码本尺寸;第二子集对应的反馈信息的码本尺寸是指由第二子集包括的下行子帧数确定的反馈信息的码本尺寸。比如,第一子集包括的下行子帧为载波1至5的下行子帧4、5、6和8,共20个下行子帧,若每个子帧上调度的数据为一个码字,则第一子集对应的反馈信息的码本尺寸为20比特;若每个子帧上调度的数据为两个码字,则第一子集对应的反馈信息的码本尺寸为40比特。其中,反馈信息的码本排序可以是先载波后子帧,按照载波和子帧标号从小到大的原则来排序;也可以是先子帧后载波,按照载波和子帧标号从小到大的原则来排序,本发明实施例对此不作具体限定。对于没有调度的下行子帧,要把位置预 留出来,且填充NACK。对于第二子集的情况,类似处理,后续不再赘述。其中,第一子集、第二子集与其对应的反馈信息的码本尺寸之间存在如表三所示的对应关系。
表三
子集 反馈信息的码本尺寸
第一子集 P1
第二子集 P2
具体的,子集对应的反馈信息的码本尺寸与信道的码本尺寸之间存在如下关系:q≥q1,p≥p1。即,第一上行信道的码本尺寸(p)不小于第一子集对应的反馈信息的码本尺寸(p1);第二上行信道的码本尺寸(q)不小于第二子集对应的反馈信息的码本尺寸(q1)。这样可以保证第一子集对应的反馈信息可以在第一上行信道资源上发送,第二子集对应的反馈信息可以在第二上行信道资源上发送。当然,由于q>p,因此,第一子集对应的反馈信息也可以在第二上行信道资源上发送,本发明实施例对此不作具体限定。
具体的,所述第一上行信道资源可以包括n个资源单位,所述第二上行信道资源可以包括m个资源单位,m≥n,m、n均为正整数。这样,p码本尺寸信道格式可以看做是n个资源单位信道格式,q码本尺寸信道格式可以看做是m个资源单位信道格式。
其中,m资源单位信道格式和n资源单位信道格式中的资源单位可以包括资源块(Resource Block,简称:RB),资源块对(Resource Block Pair,简称:RPB),子RB,以及子PRB中的任意一种。例如,如果是RB,就是m个RB,n个RB,其中n可以是1,m可以是大于或等于1的正整数。子RB即一个RB的一部分,子RB的频域宽度可以小于一个RB的频域宽度,比如占用4个子载波,时域上占用一个时隙或子帧;或者,子RB的时域宽度可以小于一个时隙,比如占用3个时域符号,频域上占用12个子载波即一个RB的频域宽度;或者,子RB在时域和频域上都占用相比于当前的一个RB较小的频域宽度和时域长度。子PRB即一对子RB。
需要说明的是,本发明实施例适用于m=n的情况。比如,一种可能的实现方式中,p码本尺寸信道格式和q码本尺寸信道格式占用相同数量的资源单位,且p码本尺寸信道格式采用的正交码的长度大于q码本尺寸信道格式采用的正交码的长度。
需要说明的是,当m=n,即两种信道格式占用的时频资源具有相等的资源单位数量,比如都占用1个RB,或者就是两种信道格式占用的时频资源完全重叠时,q码本尺寸信道格式(或m资源单位信道格式)可以传输的反馈信息的码本尺寸比p码本尺寸信道格式(或n资源单位信道格式)可以传输的反馈信息的码本尺寸多的原因在于,前者采用的正交码的长度小于后者的正交码长度,通过这种牺牲相同时频资源上的复用效率来换取码本大小的提升。例如,以PUCCH格式3为例,假设两种格式都占用一个RB的PUCCH格式3的时频资源,但p码本大小信道格式的时域正交码的长度为5,即该RB上可以最多复用5个UE的p码本大小信道格式;而q码本大小信道格式的时域正交码的长度假设为2和3,即前两个时域符号用长度为2的时域正交码扩频,后三个时域符号用长度为3的时域正交码扩频。假设该时隙中其他两个时域符号用于RS的传输,此时,该RB上可以容纳2个UE的q码本大小信道格式,但该q码本尺寸信道格式支持的反馈信息的码本大小为p码本尺寸信道格式支持的反馈信息的码本大小的两倍,因为q码本尺寸信道格式采取了两组时域正交码扩频,其中每组时域正交码的码长均小于p码本尺寸信道格式所采用的5长时域正交码,而复用能力由两组时域正交码中长度较短的时域正交码的长度决定。
具体的,在本发明实施例的步骤S304中,当所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源时,UE在第二上行信道资源上仅需按照第一子集对应的反馈信息的码本尺寸发送反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,第一上行信道的码本尺寸小 于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数不受限,UE不仅可以在所述第二上行信道资源上发送所述反馈信息,还可以在所述第二上行信道资源上发送所述r份CSI中的t份CSI,r≥2,2≤t≤r。即,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,从而实现多份CSI同时传输。
比如,假设第二上行信道的码本尺寸为40比特,反馈信息的码本尺寸为20比特,则第二上行信道在承载了20比特反馈信息后,还可以承载CSI,假设此时r=2,而每份CSI为10比特,此时UE可以将r份CSI全部发送给接入网设备,即UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r=t=2。
当然,UE也可以仅发送r份CSI中的部分CSI给接入网设备,即r>t。比如,该上行子帧配置了r=3份CSI,但此时q码本尺寸信道格式中除了反馈信息之外,还只能承载t=2份CSI,则可以把这r份CSI中的t份CSI发送给接入网设备。
需要说明的是,对于所述上行子帧中所述UE被配置的r份CSI的发送,其中一份可以指某一个载波上的某一种CSI的发送,比如载波1上的宽带信道质量信息(Channel Quality Information,简称:CQI)的发送,或载波2上的层指示(Rank Indicator,简称:RI)的发送,或载波3上的子带CQI的发送,或载波4上的预编码矩阵指示(Precoding Matrix Indicator,简称:PMI),等等,本发明实施例对此不作具体限定。
进一步的,如图4所示,本发明实施例提供的CSI的传输方法中,在步骤S303之后,还可以包括:
S305、若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r, s为正整数。
具体的,在本发明实施例的步骤S305中,当所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源时,UE在第一上行信道资源上按照第一子集对应的反馈信息的码本尺寸发送反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,因此,第一上行信道资源上可承载的反馈信息的最大比特数受限,UE在所述第一上行信道资源上可能发送不小于1份CSI,也可能1份CSI都无法发送。即,UE可以在所述第一上行信道资源上发送所述反馈信息,还可以在所述第一上行信道资源上发送所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
比如,假设第一上行信道的码本尺寸为20比特,反馈信息的码本尺寸为20比特,则第一上行信道在承载了20比特反馈信息后,无法承载CSI。若假设第一上行信道的码本尺寸为20比特,反馈信息的码本尺寸为10比特,则第一上行信道在承载了10比特反馈信息后,还可能承载CSI。假设此时r=2,而每份CSI为10比特,则UE可以在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,t=1。
如上所述,UE可以仅发送r份CSI中的部分CSI给接入网设备,也可以发送r份CSI中的全部CSI给接入网设备,本发明实施例对此不作具体限定。
进一步的,如图5所示,本发明实施例提供的CSI的传输方法中,在步骤S303之后,还可以包括:
S306、若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
具体的,在本发明实施例的步骤S306中,若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源时,UE在第二上行信道资源上按照第二子集对应的反馈信息的码本尺寸发送反馈信息。考虑到第二子集对应的反馈信息的码本尺寸不大于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数受限,UE在所述第二上行信道资源上可能发送不小于1份CSI,也可能1份CSI都无法发送。即,UE可以在所述第二上行信道资源上发送所述反馈信息,还可以在所述第二上行信道资源上发送所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
比如,假设第二上行信道的码本尺寸为40比特,反馈信息的码本尺寸为40比特,则第二上行信道在承载了40比特反馈信息后,无法承载CSI。若假设第二上行信道的码本尺寸为40比特,反馈信息的码本尺寸为20比特,则第一上行信道在承载了10比特反馈信息后,还可能承载CSI。假设此时r=2,而每份CSI为10比特,则此时UE可以将r份CSI全部发送给接入网设备,即UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,r=s=2。
当然,如上所述,UE也可以仅发送r份CSI中的部分CSI给接入网设备,即r>s。比如,该上行子帧配置了r=3份CSI,但此时q码本尺寸信道格式中除了反馈信息之外,还只能承载s=2份CSI,则可以把这r份CSI中的s份CSI发送给接入网设备。
需要说明的是,本发明实施例中,为了支持更多载波的CA,一个方法是扩展当前PUCCH格式3的容量,比如从一个RB扩展到多个RB。具体的,以2个RB的PUCCH格式3为例,只需要把每个时隙占用的12个子载波扩展到24个子载波即可,不需要改动时域OCC扩频,这样就可以成比例的使得该双RB的PUCCH格式3支持40个比特的反馈信息的传输,进而可以支持更多载波(比如10载波)的 CA。扩展到三RB或更多RB的方案类似,只需要在频域进行扩展即可。然而,单RB的PUCCH格式3由于复用能力有限,使得其开销比PUCCH格式1a/1b较大,扩展到多RB的PUCCH格式3的开销会更大,因为复用能力较单RB的PUCCH格式3是一样的,但占用的资源却随着RB的扩展而成倍增加。此外,除扩展RB的方式外,还可以考虑其他方式,比如以比RB粒度更小的资源单位来扩展引入大容量的PUCCH也是可以的,甚至取消扩频码而直接用时频分的PUCCH复用方式也是可以的。本发明实施例对此不作具体限定。
以双RB的PUCCH格式3为例,假设支持10个载波的CA,即如果调度了10个载波,那么就使用该双RB的PUCCH格式3。但是,给UE配置了10个载波后,具体给UE在上述10个载波中选择几个进行数据调度需要考虑多方面因素,不是每个子帧都会调度10个载波。具体的,调度的载波数由当前的业务负载决定;即使有调度需求,还需要考虑PDCCH资源区域的容量,如果该UE的PDCCH无法调度,那么其对应的载波上的数据也是无法调度的。这意味着,即使配置了10个载波,在某个子帧可能只需要调度一部分载波的数据传输,这样可以引入动态PUCCH格式回退的方式。例如,如果只调度了前5个载波的数据,那么此时可以动态的回退为单RB的PUCCH格式3来传输反馈信息;如果调度了10个载波,就可以采用双RB的PUCCH格式3来传输反馈信息,从而降低PUCCH格式3的开销。
进一步的,本发明实施例提供的CSI的传输方法中,UE接收接入网设备发送的下行数据(步骤S301)具体可以包括:
UE在第二下行子帧集合包括的下行子帧中接收所述下行数据。其中,所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
具体的,第二下行子帧集合可能是调度集合,也可能是激活集 合。若第二下行子帧为调度集合,则具体可以通过以下方式获得:
UE在接收所述下行数据之前,接收接入网设备发送的调度该下行数据的下行控制信息,进而根据该下行控制信息确定哪些下行子帧被调度,这些被调度的下行子帧构成第二下行子帧集合,该第二下行子帧集合为上述第一下行子帧集合的子集。
其中,该被调度的下行子帧可以是一个,也可以是多个,当该被调度的下行子帧是一个时,可以是辅载波上的下行子帧,也可以是主载波上的DAI字段取值大于1的控制信道所调度的下行子帧,但不是调度主载波上PDSCH的且DAI字段指示为1的PDCCH对应的下行子帧。
若第二下行子帧为激活集合,可以理解,UE实际被调度的下行子帧为该第二下行子帧集合的子集中的下行子帧。其中,该激活的第二下行子帧集合可以是接入网设备通过媒体接入控制(Media Access Control,简称:MAC)信令配置给UE的,也可以是接入网设备通过其它方式配置给UE的,本发明实施例对此不作具体限定。
需要说明的是,虽然本发明中的实施例都是假设第二下行子帧集合为实际被调度的下行子帧集合来描述,但同样可以适用于第二下行子帧集合为上述激活的下行子帧集合的情况,本发明实施例对此不作具体限定。
需要说明的是,本发明实施例中,假设为UE配置了15个载波,且上行子帧2上最多需要反馈60比特的反馈信息,但某个子帧中为该UE调度的载波数或下行子帧数可以小于上述最大值,具体与UE瞬时的业务负载和控制信道容量等多种因素有关。
进一步的,若所述上行子帧中所述UE被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
若所述上行子帧中所述UE被配置了r份CSI的发送,所述第二 下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二下行子帧集合中包括载波1的子帧4、5、6和8,载波2的子帧4、5和6,以及载波3的子帧4和5,其中,载波1为主载波。因此,上述第二下行子帧集合为第一子集的子集。在这种情况下,UE确定的信道资源可能为所述第一上行信道资源,也可能为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二子集由载波1-10的下行子帧4、5、6和8构成。第二下行子帧集合中包括载波1的子帧4、5、6和8,载波3的子帧4、5和6,以及载波6的子帧4和5。即第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集。在这种情况下,UE确定的信道资源为第二上行信道资源。
进一步的,在所述UE确定用于发送所述反馈信息的信道资源(步骤S303)之前,还可以包括:
所述UE接收所述接入网设备发送的资源指示信息,所述资源指示信息用于指示发送所述反馈信息的信道资源。
所述UE确定用于发送所述反馈信息的信道资源,包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
具体的,上述资源指示信息可能包含在调度上述下行数据的下行控制信息中,该包含有资源指示信息的下行控制信息中DAI不为 1,例如DAI大于1。或者,对于FDD CA系统,调度主载波的下行控制信息中没有上述资源指示信息,而只有调度辅载波的下行控制信息中才有上述资源指示信息。
其中,该资源指示信息可以为下行控制信息中的显式比特,例如,控制信道中的至少一个比特承载该资源指示信息,该至少一个比特的不同状态标识采用不同的PUCCH信道资源。可选的,该资源指示信息也可以是隐式的指示方式,例如,控制信道上的不同扰码指示不同的信道资源。具体的,该资源指示信息可以是ACK/NACK资源指示(ACK/NACK resource indicator,简称:ARI)。
示例性的,接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系可以如表四所示:
表四
Figure PCTCN2015074783-appb-000004
其中,该映射关系可以是接入网设备通过RRC专有信令配置给UE的,也可以是接入网设备通过其他方式配置给UE的,本发明实施例对此不作具体限定。
需要说明的是,表四仅是接入网设备配置给UE的映射关系的一个具体示例,当然接入网设备配置给UE的映射关系还可以是其他,本发明实施例对此不作具体限定。
具体的,当UE接收到所述接入网设备发送的资源指示信息之后,可以根据该资源指示信息以及上述映射关系,确定用于发送所述反馈信息的信道资源。
示例性的,即使此时第二下行子帧集合中只包括第一子集中的下行子帧,但如果UE接收到的资源指示信息的状态为10,根据表 四,意味着指示双RB PUCCH信道资源1来发送反馈信息,因此UE确定使用双RB PUCCH格式在双RB PUCCH格式3信道资源1发送反馈信息。此时,UE也会发现自己漏检了调度第一子集之外的下行子帧的PDCCH,因为如果没有漏检的话,考虑到第二下行子帧集合中只包括第一子集中的下行子帧,基站会指示UE使用单RB PUCCH信道资源。反之,如果UE发现第二下行子帧集合为第一子集的子集,就使用单RB PUCCH格式3的话,而一旦漏检,基站会期待UE用双RB-PUCCH格式3来传输反馈信息,但UE其实会用单RB-PUCCH格式3传输反馈信息,因此会和基站产生理解不一致的问题,进而会造成基站解码反馈信息不成功;如果基站把自己认为没有分配给UE的信道资源分配给了其他UE,而当前UE就是用的已经被分配给了其他UE的这个单RB PUCCH格式3的信道资源进行的反馈信息的发送,还会造成对其他UE的PUCCH格式3的干扰。因此,本实施例中利用资源指示信息指示采用单RB-PUCCH格式3或双RB-PUCCH格式3,使得UE只要确定资源指示信息指示采用双RB-PUCCH格式3,UE就用双RB-PUCCH格式3来发送反馈信息,从而解决了上述由于漏检控制信道导致的PUCCH信道资源模糊问题。
进一步的,本发明实施例中,所述资源指示信息还用于指示所述反馈信息的码本尺寸,所述方法还包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
即,本发明实施例中,所述资源指示信息除了用于指示发送所述反馈信息的信道资源之外,还可以用于指示所述反馈信息的码本尺寸(包括第一子集对应的p1码本尺寸或第二子集对应的q1码本尺寸)。
示例性的,接入网设备预先为所述UE配置的所述资源指示信 息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系可以如表五所示:
表五
Figure PCTCN2015074783-appb-000005
需要说明的是,表五仅是接入网设备配置给UE的映射关系的一个具体示例,当然接入网设备配置给UE的映射关系还可以是其他,本发明实施例对此不作具体限定。
具体的,当UE接收到所述接入网设备发送的资源指示信息之后,可以根据该资源指示信息以及表五所示的映射关系,确定所述反馈信息的码本尺寸,本发明实施例在此不再赘述。
可选的,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集,所述方法还包括:
所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
即,本发明实施例中,所述资源指示信息除了用于指示发送所述反馈信息的信道资源之外,还可以用于指示所述反馈信息的码本尺寸对应的子集(包括第一子集或第二子集)。
示例性的,接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系可以如表六所示:
表六
Figure PCTCN2015074783-appb-000006
Figure PCTCN2015074783-appb-000007
需要说明的是,表六仅是接入网设备配置给UE的映射关系的一个具体示例,当然接入网设备配置给UE的映射关系还可以是其他,本发明实施例对此不作具体限定。
具体的,当UE接收到所述接入网设备发送的资源指示信息之后,可以根据该资源指示信息以及表六所示的映射关系,确定所述反馈信息的码本尺寸对应的子集,本发明实施例在此不再赘述。
需要说明的是,表四所示的映射关系与表五或表六所示的映射关系可以是接入网设备分别独立配置给UE的,也可以是接入网设备同时配置给UE的,比如,状态10用于指示使用第二上行信道资源且使用p1码本尺寸,而状态11指示使用第二上行信道资源且使用q1码本尺寸,本发明实施例对此不作具体限定。
进一步的,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息;或者,
若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息。
具体的,若所述上行子帧中所述UE未被配置CSI的发送,此时的信道资源指示信息的指示方法与上述配置了CSI的发送的场景不同。此时的信道资源指示信息可以只用于指示发送所述反馈信息的信道资源,而不需要用于指示所述反馈信息的码本尺寸或所述反馈信息的码本尺寸对应的子集。若UE根据信道资源指示信息确定的 信道资源为第二上行信道资源,则UE可以直接在该第二上行信道资源按照q1码本尺寸来传输反馈信息;反之,若UE根据信道资源指示信息确定的信道资源为第一上行信道资源,则UE可以直接在该第一上行信道资源按照q1码本尺寸来传输反馈信息。
进一步的,若所述上行子帧中所述UE未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述UE未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二下行子帧集合中包括载波1的子帧4、5、6和8,载波2的子帧4、5和6,以及载波3的子帧4和5,其中,载波1为主载波。因此,上述第二下行子帧集合为第一子集的子集。在这种情况下,考虑到所述上行子帧中所述UE未被配置CSI的发送,即UE仅发送反馈信息即可,因此UE确定的信道资源为所述第一上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二子集由载波1-10的下行子帧4、5、6和8构成。第二下行子帧集合中包括载波1的子帧4、5、6和8,载波3的子帧4、5和6,以及载波6的子帧4和5。即第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集。在这种情况下,UE确定的信道资源为第二上行信道资源。
具体的,由于本发明实施例中,所述上行子帧中UE未被配置CSI的发送,因此,UE在第一上行信道资源上按照第一子集对应的码本尺寸发送反馈信息,UE在第二上行信道资源上按照第二子集对 应的码本尺寸发送反馈信息即可。通过引入动态PUCCH格式回退的方式,从而降低PUCCH格式3的开销。
实施例二、
本发明实施例提供一种CSI的传输方法,具体应用在接入网设备上,则如图6所示,方法包括:
S601、接入网设备发送下行数据给UE。
S602、所述接入网设备确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集。
具体的,本发明实施例中反馈信息的相关描述可参考实施例一,此处不再赘述。
具体的,接入网设备可以根据预先配置确定用于接收所述反馈信息的上行子帧。比如,可以通过预先配置的下行子帧与上行子帧的时序或定时对应关系确定用于接收所述反馈信息的上行子帧,也即根据预先配置的上下行子帧配置确定预先配置确定用于接收所述反馈信息的上行子帧。例如,可以根据表二确定接收所述反馈信息的上行子帧。
其中,所述上行子帧关联的第一下行子帧集合的相关描述可参考实施例一,此处不再赘述。
具体的,接入网设备确定第一子集和第二子集的方式可参考实施例一种UE确定第一子集和第二子集的方式,此处不再赘述。
S603、所述接入网设备确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数。
具体的,p码本尺寸信道格式和q码本尺寸信道格式的相关描述、以及第一/第二子集对应的反馈信息的码本尺寸的相关描述可 参考实施例一,此处不再赘述。
具体的,所述第一上行信道资源可以包括n个资源单位,所述第二上行信道资源可以包括m个资源单位,m≥n,m、n均为正整数。这样,p码本尺寸信道格式可以看做是n个资源单位信道格式,q码本尺寸信道格式可以看做是m个资源单位信道格式。相关详细描述可参考实施例一,此处不再赘述。
S604、若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
具体的,当所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源时,接入网设备在第二上行信道资源上仅需按照第一子集对应的反馈信息的码本尺寸接收反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,第一上行信道的码本尺寸小于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数不受限,接入网设备不仅可以在所述第二上行信道资源上接收所述反馈信息,还可以在所述第二上行信道资源上接收所述r份CSI中的t份CSI,r≥2,2≤t≤r。即,接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,从而实现多份CSI同时传输。
比如,假设第二上行信道的码本尺寸为40比特,反馈信息的码本尺寸为20比特,则第二上行信道在承载了20比特反馈信息后,还可以承载CSI,假设此时r=2,而每份CSI为10比特,此时接入网设备可以接收r份CSI中的全部CSI,即UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r=t=2。
当然,接入网设备也可以仅接收r份CSI中的部分CSI,即r>t。比如,该上行子帧配置了r=3份CSI,但此时q码本尺寸信道格式中除了反馈信息之外,还只能承载t=2份CSI,则可以接入网设备可以接收r份CSI中的t份CSI。
需要说明的是,对于所述上行子帧中所述接入网设备被配置的r份CSI的接收,其中一份可以指某一个载波上的某一种CSI的接收,比如载波1上的CQI的接收,或载波2上的RI的接收,或载波3上的子带CQI的接收,或载波4上的PMI接收,等等,本发明实施例对此不作具体限定。
进一步的,如图7所示,本发明实施例提供的CSI的传输方法中,在步骤S603之后,还可以包括:
S605、若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
具体的,当所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源时,接入网设备在第一上行信道资源上按照第一子集对应的反馈信息的码本尺寸接收反馈信息。考虑到第一子集对应的反馈信息的码本尺寸不大于第一上行信道的码本尺寸,因此,第一上行信道资源上可承载的反馈信息的最大比特数受限,接入网设备在所述第一上行信道资源上可能接收不小于1份CSI,也可能1份CSI都无法接收。即,接入网设备可以在所述第一上行信道资源上接收所述反馈信息,还可以在所述第一上行信道资源上接收所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
比如,假设第一上行信道的码本尺寸为20比特,反馈信息的码本尺寸为20比特,则第一上行信道在承载了20比特反馈信息 后,无法承载CSI。若假设第一上行信道的码本尺寸为20比特,反馈信息的码本尺寸为10比特,则第一上行信道在承载了10比特反馈信息后,还可能承载CSI。假设此时r=2,而每份CSI为10比特,则接入网设备可以在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,t=1。
如上所述,接入网设备可以仅接收UE发送的r份CSI中的部分CSI,也可以接收UE发送的r份CSI中的全部CSI,本发明实施例对此不作具体限定。
进一步的,如图8所示,本发明实施例提供的CSI的传输方法中,在步骤S603之后,还可以包括:
S606、若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
具体的,当所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源时,接入网设备在第二上行信道资源上按照第二子集对应的反馈信息的码本尺寸接收反馈信息。考虑到第二子集对应的反馈信息的码本尺寸不大于第二上行信道的码本尺寸,因此,第二上行信道资源上可承载的反馈信息的最大比特数受限,接入网设备在所述第二上行信道资源上可能接收不小于1份CSI,也可能1份CSI都无法接收。即,接入网设备可以在所述第二上行信道资源上接收所述反馈信息,还可以在所述第二上行信道资源上接收所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
比如,假设第二上行信道的码本尺寸为40比特,反馈信息的码本尺寸为40比特,则第二上行信道在承载了40比特反馈信息后,无法承载CSI。若假设第二上行信道的码本尺寸为40比特,反 馈信息的码本尺寸为20比特,则第一上行信道在承载了10比特反馈信息后,还可能承载CSI。假设此时r=2,而每份CSI为10比特,则此时接入网设备可以接收UE发送的r份CSI全部CSI,即接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,r=s=2。
当然,如上所述,接入网设备也可以仅接收UE发送的r份CSI中的部分CSI,即r>s。比如,该上行子帧配置了r=3份CSI,但此时q码本尺寸信道格式中除了反馈信息之外,还只能承载s=2份CSI,则接入网设备可以接收r份CSI中的s份CSI。
需要说明的是,本发明实施例中,为了支持更多载波的CA,一个方法是扩展当前PUCCH格式3的容量,比如从一个RB扩展到多个RB。相关描述及及技术效果可参考实施例一,此处不再赘述。
进一步的,本发明实施例提供的CSI的传输方法中,所述接入网设备发送下行数据给UE(步骤S601),具体可以包括:
所述接入网设备在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE;其中,
所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
具体的,第二下行子帧集合可能是调度集合,也可能是激活集合。相关描述可参考实施例一,此处不再赘述。
需要说明的是,虽然本发明中的实施例都是假设第二下行子帧集合为实际被调度的下行子帧集合来描述的,但可以同样适用于第二下行子帧集合为上述激活的下行子帧集合的情况,本发明实施例对此不作具体限定。
进一步的,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源或所述 第二上行信道资源;或者,
若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二下行子帧集合中包括载波1的子帧4、5、6和8,载波2的子帧4、5和6,以及载波3的子帧4和5,其中,载波1为主载波。因此,上述第二下行子帧集合为第一子集的子集。在这种情况下,接入网设备确定的信道资源可能为所述第一上行信道资源,也可能为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二子集由载波1-10的下行子帧4、5、6和8构成。第二下行子帧集合中包括载波1的子帧4、5、6和8,载波3的子帧4、5和6,以及载波6的子帧4和5。即第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集。在这种情况下,接入网设备确定的信道资源为第二上行信道资源。
进一步的,在所述接入网设备确定用于接收所述反馈信息的信道资源(步骤S603)之后,还可以包括:
所述接入网设备发送资源指示信息给所述UE,所述资源指示信息用于指示传输所述反馈信息的信道资源。
进一步的,所述资源指示信息还用于指示所述反馈信息的码本尺寸;或者,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
具体的,资源指示信息的相关描述可参考实施例一,此处不再赘述。
进一步的,在所述接入网设备确定用于接收所述反馈信息的信 道资源之后,还包括:
若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸为对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息;或者,
若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息。
进一步的,若所述上行子帧中所述接入网设备未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述接入网设备未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二下行子帧集合中包括载波1的子帧4、5、6和8,载波2的子帧4、5和6,以及载波3的子帧4和5,其中,载波1为主载波。因此,上述第二下行子帧集合为第一子集的子集。在这种情况下,考虑到所述上行子帧中所述接入网设备未被配置CSI的接收,即接入网设备仅需接收反馈信息即可,因此接入网设备确定的信道资源为所述第一上行信道资源。
比如,假设第一子集由载波1-5的下行子帧4、5、6和8构成,第二子集由载波1-10的下行子帧4、5、6和8构成。第二下行子帧集合中包括载波1的子帧4、5、6和8,载波3的子帧4、5和6,以及载波6的子帧4和5。即第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行 子帧,且所述第二下行子帧集合为所述第二子集的子集。在这种情况下,接入网设备确定的信道资源为第二上行信道资源。
具体的,由于本发明实施例中,所述上行子帧中接入网设备未被配置CSI的接收,因此,接入网设备在第一上行信道资源上按照第一子集对应的码本尺寸接收反馈信息,接入网设备在第二上行信道资源上按照第二子集对应的码本尺寸接收反馈信息即可。通过引入动态PUCCH格式回退的方式,从而降低PUCCH格式3的开销。
实施例三、
本发明实施例提供一种UE900,如图9所示,所述UE900包括:接收模块901、处理模块902、以及发送模块903。
所述接收模块901,用于接收接入网设备发送的下行数据。
所述处理模块902,用于确定用于发送所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;
以及,所述处理模块902,还用于确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数。
所述发送模块903,用于若所述上行子帧中所述UE900被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块902确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,r、t均为正整数。
进一步的,所述发送模块903,还用于在所述处理模块902确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE900被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所 述第一子集,且所述处理模块902确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
进一步的,所述发送模块903,还用于在所述处理模块902确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE900被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块902确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,其中,0≤s≤r,s为正整数。
优选的,所述接收模块901具体用于:
在第二下行子帧集合包括的下行子帧中接收所述下行数据。
其中,所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE900激活的所有载波上的下行子帧组成的。
进一步的,若所述上行子帧中所述UE900被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块902确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源。
或者,若所述上行子帧中所述UE900被配置了r份CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块902确定的所述信道资源为所述第二上行信道资源。
进一步的,所述接收模块901,还用于在所述处理模块902确定用于发送所述反馈信息的信道资源之前,接收所述接入网设备发送的资源指示信息,所述资源指示信息用于指示发送所述反馈信息的信道资源。
所述确定模块具体用于:
根据所述资源指示信息、以及所述接入网设备预先为所述UE900配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
进一步的,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
所述处理模块902,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE900配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
可选的,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
所述处理模块902,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE900配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
进一步的,所述发送模块903,还用于在所述处理模块902确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE900未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块902确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息。
或者,所述发送模块903,还用于在所述处理模块902确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE900未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块902确定的所述信道资源为所述第二上行 信道资源,在所述第二上行信道资源上发送所述反馈信息。
进一步的,若所述上行子帧中所述UE900未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块902确定的所述信道资源为所述第一上行信道资源。
或者,若所述上行子帧中所述UE900未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块902确定的所述信道资源为所述第二上行信道资源。
需要说明的是,在本发明实施例提供的UE900的单元模块中,接收模块901具体可以通过接收器来实现;发送模块903具体可以通过发送器来实现;处理模块902具体可以通过处理器来实现,其中,所述处理器、所述接收器、所述发送器之间可以相互通信,本发明实施例对此不作具体限定。
具体的,通过本发明实施例提供的UE900进行CSI的传输方法可参考实施例一的描述,本发明实施例在此不再赘述。
由于本实施例的UE900能够用于执行上述方法,因此,其所能获得的技术效果也可以参照上述方法实施例的描述,此处不再赘述。
实施例四、
本发明实施例提供一种接入网设备1000,如图10所示,所述接入网设备1000包括:发送模块1001、处理模块1002、接收模块1003。
所述发送模块1001,用于发送下行数据给用户设备UE。
所述处理模块1002,用于确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;
以及,所述处理模块1002,还用于确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资 源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数。
所述接收模块1003,用于若所述上行子帧中所述接入网设备1000被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块1002确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
进一步的,所述接收模块1003,还用于在所述处理模块1002确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备1000被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块1002确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
进一步的,所述接收模块1003,还用于在所述处理模块1002确定用于接收所述反馈信息的信道资源后,若所述上行子帧中所述接入网设备1000被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块1002确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
优选的,所述发送模块1001具体用于:
在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE。
其中,所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
进一步的,若所述上行子帧中所述接入网设备1000被配置了r 份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块1002确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源。或者,
若所述上行子帧中所述接入网设备1000被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块1002确定的所述信道资源为所述第二上行信道资源。
进一步的,所述发送模块1001,还用于在所述处理模块1002确定用于接收所述反馈信息的信道资源之后,发送资源指示信息给所述UE,所述资源指示信息用于指示传输所述反馈信息的信道资源。
进一步的,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
可选的,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
进一步的,所述接收模块1003,还用于在所述处理模块1002确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备1000未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块1002确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息;或者,
所述接收模块1003,还用于在所述处理模块1002确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备1000未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块1002确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息。
进一步的,若所述上行子帧中所述接入网设备1000未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所 述处理模块1002确定的所述信道资源为所述第一上行信道资源;或者,
若所述上行子帧中所述接入网设备1000未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块1002确定的所述信道资源为所述第二上行信道资源。
需要说明的是,在本发明实施例提供的接入网设备1000的单元模块中,接收模块1003具体可以通过接收器来实现;发送模块1001具体可以通过发送器来实现;处理模块1002具体可以通过处理器来实现,其中,所述处理器、所述接收器、所述发送器之间可以相互通信,本发明实施例对此不作具体限定。
具体的,通过本发明实施例提供的接入网设备1000进行CSI的传输方法可参考实施例二的描述,本发明实施例在此不再赘述。
由于本实施例的接入网设备1000能够用于执行上述方法,因此,其所能获得的技术效果也可以参照上述方法实施例的描述,此处不再赘述。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (40)

  1. 一种信道状态信息CSI的传输方法,其特征在于,所述方法包括:
    用户设备UE接收接入网设备发送的下行数据;
    所述UE确定用于发送所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
    所述UE确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
    若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,r、t均为正整数。
  2. 根据权利要求1所述的方法,其特征在于,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
    若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
  3. 根据权利要求1或2所述的方法,其特征在于,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
    若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送 所述反馈信息和所述r份CSI中的s份CSI,其中,0≤s≤r,s为正整数。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述UE接收接入网设备发送的下行数据,包括:
    所述UE在第二下行子帧集合包括的下行子帧中接收所述下行数据;其中,
    所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
    所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
  5. 根据权利要求4所述的方法,其特征在于,若所述上行子帧中所述UE被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
    若所述上行子帧中所述UE被配置了r份CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
  6. 根据权利要求1-5任一项所述的方法,其特征在于,在所述UE确定用于发送所述反馈信息的信道资源之前,还包括:
    所述UE接收所述接入网设备发送的资源指示信息,所述资源指示信息用于指示发送所述反馈信息的信道资源;
    所述UE确定用于发送所述反馈信息的信道资源,包括:
    所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
  7. 根据权利要求6所述的方法,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸;
    所述方法还包括:
    所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
  8. 根据权利要求6所述的方法,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集;
    所述方法还包括:
    所述UE根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
  9. 根据权利要求4-8任一项所述的方法,其特征在于,在所述UE确定用于发送所述反馈信息的信道资源之后,还包括:
    若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述UE确定的所述信道资源为所述第一上行信道资源,所述UE在所述第一上行信道资源上发送所述反馈信息;或者,
    若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述UE确定的所述信道资源为所述第二上行信道资源,所述UE在所述第二上行信道资源上发送所述反馈信息。
  10. 根据权利要求9所述的方法,其特征在于,若所述上行子帧中所述UE未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述UE确定的所述信道资源为所述第一上行信道 资源;或者,
    若所述上行子帧中所述UE未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述UE确定的所述信道资源为所述第二上行信道资源。
  11. 一种信道状态信息CSI的传输方法,其特征在于,所述方法包括:
    接入网设备发送下行数据给用户设备UE;
    所述接入网设备确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
    所述接入网设备确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
    若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
  12. 根据权利要求11所述的方法,其特征在于,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
    若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份 CSI,0≤s≤r,s为正整数。
  13. 根据权利要求11或12所述的方法,其特征在于,在所述接入网设备确定用于接收所述反馈信息的信道资源后,还包括:
    若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
  14. 根据权利要求11-13任一项所述的方法,其特征在于,所述接入网设备发送下行数据给用户设备UE,包括:
    所述接入网设备在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE;其中,
    所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
    所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
  15. 根据权利要求14所述的方法,其特征在于,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
    若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
  16. 根据权利要求11-15任一项所述的方法,其特征在于,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
    所述接入网设备发送资源指示信息给所述UE,所述资源指示信 息用于指示传输所述反馈信息的信道资源。
  17. 根据权利要求16所述的方法,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
  18. 根据权利要求16所述的方法,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
  19. 根据权利要求14-18任一项所述的方法,其特征在于,在所述接入网设备确定用于接收所述反馈信息的信道资源之后,还包括:
    若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述接入网设备确定的所述信道资源为所述第一上行信道资源,所述接入网设备在所述第一上行信道资源上接收所述反馈信息;或者,
    若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述接入网设备确定的所述信道资源为所述第二上行信道资源,所述接入网设备在所述第二上行信道资源上接收所述反馈信息。
  20. 根据权利要求19所述的方法,其特征在于,若所述上行子帧中所述接入网设备未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述接入网设备确定的所述信道资源为所述第一上行信道资源;或者,
    若所述上行子帧中所述接入网设备未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述接入网设备确定的所述信道资源为所述第二上行信道资源。
  21. 一种用户设备UE,其特征在于,所述UE包括:接收模块、处理模块、以及发送模块;
    所述接收模块,用于接收接入网设备发送的下行数据;
    所述处理模块,用于确定用于发送所述下行数据的反馈信息的上 行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
    所述处理模块,还用于确定用于发送所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
    所述发送模块,用于若所述上行子帧中所述UE被配置了r份信道状态信息CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,r、t均为正整数。
  22. 根据权利要求21所述的UE,其特征在于,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
  23. 根据权利要求21或22所述的UE,其特征在于,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE被配置了r份CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息和所述r份CSI中的s份CSI,其中,0≤s≤r,s为正整数。
  24. 根据权利要求21-23任一项所述的UE,其特征在于,所述接收模块具体用于:
    在第二下行子帧集合包括的下行子帧中接收所述下行数据;其 中,
    所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
    所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
  25. 根据权利要求24所述的UE,其特征在于,若所述上行子帧中所述UE被配置了r份CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
    若所述上行子帧中所述UE被配置了r份CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
  26. 根据权利要求21-25任一项所述的UE,其特征在于,所述接收模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之前,接收所述接入网设备发送的资源指示信息,所述资源指示信息用于指示发送所述反馈信息的信道资源;
    所述确定模块具体用于:
    根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与信道资源集合中的不同信道资源的映射关系,确定用于发送所述反馈信息的信道资源,其中,所述信道资源集合中包括所述第一上行信道资源和所述第二上行信道资源。
  27. 根据权利要求26所述的UE,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸;
    所述处理模块,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸集合中不同码本尺寸的映射关系,确定所述反馈信息的 码本尺寸,其中,所述码本尺寸集合中包括所述第一子集对应的码本尺寸和所述第二子集对应的码本尺寸。
  28. 根据权利要求26所述的UE,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集;
    所述处理模块,还用于根据所述资源指示信息、以及所述接入网设备预先为所述UE配置的所述资源指示信息的状态集合中的不同状态与码本尺寸对应的子集集合中不同码本尺寸对应的子集的映射关系,确定所述反馈信息的码本尺寸对应的子集,其中,所述码本尺寸对应的子集集合中包括所述第一子集和所述第二子集。
  29. 根据权利要求24-28任一项所述的UE,其特征在于,所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上发送所述反馈信息;或者,
    所述发送模块,还用于在所述处理模块确定用于发送所述反馈信息的信道资源之后,若所述上行子帧中所述UE未被配置CSI的发送,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上发送所述反馈信息。
  30. 根据权利要求29所述的UE,其特征在于,若所述上行子帧中所述UE未被配置CSI的发送,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源;或者,
    若所述上行子帧中所述UE未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
  31. 一种接入网设备,其特征在于,所述接入网设备包括:发送模块、处理模块、接收模块;
    所述发送模块,用于发送下行数据给用户设备UE;
    所述处理模块,用于确定用于接收所述下行数据的反馈信息的上行子帧,其中,所述上行子帧关联的第一下行子帧集合包括第一子集和第二子集,所述第一子集为所述第二子集的真子集;以及,
    所述处理模块,还用于确定用于接收所述反馈信息的信道资源,其中,所述信道资源包括第一上行信道资源或第二上行信道资源,所述第一上行信道资源为p码本尺寸格式信道的资源,所述第二上行信道资源为q码本尺寸格式信道的资源,q>p,q≥q1,p≥p1,p1为所述第一子集对应的反馈信息的码本尺寸,q1为所述第二子集对应的反馈信息的码本尺寸,p、q、p1、q1均为正整数;
    所述接收模块,用于若所述上行子帧中所述接入网设备被配置了r份信道状态信息CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息和所述r份CSI中的t份CSI,r≥2,2≤t≤r,p1、r、t均为正整数。
  32. 根据权利要求31所述的接入网设备,其特征在于,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,s为正整数。
  33. 根据权利要求31或32所述的接入网设备,其特征在于,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源后,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资 源上接收所述反馈信息和所述r份CSI中的s份CSI,0≤s≤r,q1、s为正整数。
  34. 根据权利要求31-33任一项所述的接入网设备,其特征在于,所述发送模块具体用于:
    在第二下行子帧集合包括的下行子帧中发送下行数据给所述UE;其中,
    所述第二下行子帧集合是由所述第一下行子帧集合中被调度的所有下行子帧组成的;或者,
    所述第二下行子帧集合是由所述第一下行子帧集合中的所述UE激活的所有载波上的下行子帧组成的。
  35. 根据权利要求34所述的接入网设备,其特征在于,若所述上行子帧中所述接入网设备被配置了r份CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源或所述第二上行信道资源;或者,
    若所述上行子帧中所述接入网设备被配置了r份CSI的接收,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
  36. 根据权利要求31-35任一项所述的接入网设备,其特征在于,所述发送模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,发送资源指示信息给所述UE,所述资源指示信息用于指示传输所述反馈信息的信道资源。
  37. 根据权利要求36所述的接入网设备,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸。
  38. 根据权利要求36所述的接入网设备,其特征在于,所述资源指示信息还用于指示所述反馈信息的码本尺寸对应的子集。
  39. 根据权利要求34-38任一项所述的接入网设备,其特征在于,所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的 信道资源之后,若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第一子集,且所述处理模块确定的所述信道资源为所述第一上行信道资源,在所述第一上行信道资源上接收所述反馈信息;或者,
    所述接收模块,还用于在所述处理模块确定用于接收所述反馈信息的信道资源之后,若所述上行子帧中所述接入网设备未被配置CSI的接收,所述反馈信息的码本尺寸对应所述第二子集,且所述处理模块确定的所述信道资源为所述第二上行信道资源,在所述第二上行信道资源上接收所述反馈信息。
  40. 根据权利要求39所述的接入网设备,其特征在于,若所述上行子帧中所述接入网设备未被配置CSI的接收,且所述第二下行子帧集合为所述第一子集的子集,所述处理模块确定的所述信道资源为所述第一上行信道资源;或者,
    若所述上行子帧中所述接入网设备未被配置CSI的发送,所述第二下行子帧集合包括所述第一子集中的下行子帧和属于所述第二子集但不属于所述第一子集的下行子帧,且所述第二下行子帧集合为所述第二子集的子集,所述处理模块确定的所述信道资源为所述第二上行信道资源。
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