WO2012083530A1 - 资源分配方法、信道状态信息的传输方法、基站和用户设备 - Google Patents

资源分配方法、信道状态信息的传输方法、基站和用户设备 Download PDF

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Publication number
WO2012083530A1
WO2012083530A1 PCT/CN2010/080111 CN2010080111W WO2012083530A1 WO 2012083530 A1 WO2012083530 A1 WO 2012083530A1 CN 2010080111 W CN2010080111 W CN 2010080111W WO 2012083530 A1 WO2012083530 A1 WO 2012083530A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
base station
channel state
downlink component
state information
Prior art date
Application number
PCT/CN2010/080111
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English (en)
French (fr)
Inventor
王轶
周华
吴建明
Original Assignee
富士通株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020137019212A priority Critical patent/KR101521034B1/ko
Priority to RU2013133826/07A priority patent/RU2555365C2/ru
Priority to BR112013016157-4A priority patent/BR112013016157A2/pt
Priority to MX2013007300A priority patent/MX2013007300A/es
Priority to CA2944691A priority patent/CA2944691C/en
Priority to CA2824653A priority patent/CA2824653C/en
Priority to JP2013545000A priority patent/JP5862678B2/ja
Priority to PCT/CN2010/080111 priority patent/WO2012083530A1/zh
Priority to CN201080070794.9A priority patent/CN103270803B/zh
Priority to AU2010366219A priority patent/AU2010366219B2/en
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to EP10861134.4A priority patent/EP2658331B1/en
Priority to EP18187918.0A priority patent/EP3422785B1/en
Priority to TW100146178A priority patent/TWI445430B/zh
Publication of WO2012083530A1 publication Critical patent/WO2012083530A1/zh
Priority to US13/922,690 priority patent/US9155074B2/en
Priority to RU2015117771/07A priority patent/RU2600978C1/ru
Priority to US14/833,582 priority patent/US9510333B2/en
Priority to RU2016137882A priority patent/RU2629008C1/ru
Priority to US15/348,631 priority patent/US20170064737A1/en
Priority to US15/860,985 priority patent/US10631332B2/en
Priority to US16/748,201 priority patent/US20200163115A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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
    • H04L1/0027Scheduling of signalling, e.g. occurrence thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1671Details of the supervisory signal the supervisory signal being transmitted together with control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • 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
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • Resource allocation method transmission method of channel state information, base station and user setting technical fields
  • the present invention relates to the field of wireless communications, and in particular, to a resource allocation method, a method for transmitting channel state information, a base station, and a user equipment. Background technique
  • a user equipment obtains downlink channel state information (CSI: Channel State Information) by measuring a downlink reference signal, and The link reports to the base station that the channel state information CSI includes a channel quality indicator (CQI: Channel Quality Indicator) for the downlink, and includes a Precoding Matrix Indicator (PMI) for some downlink transmission modes.
  • RI Rank Indication
  • the channel state information CSI, the reception acknowledgement ACK/NACK information, and the scheduling request are collectively referred to as uplink control information (UCI: Uplink Control Information
  • the uplink control information UCI may include only one type of the above information, or a plurality of the above information.
  • the base station selects a typical modulation and coding method, multi-antenna processing, and automatic hybrid request retransmission HARQ based on the uplink control information UCI reported by the user equipment UE, and adaptively dynamically adjusts the data transmission.
  • the channel state information CSI in the uplink control information UCI can be reported periodically and non-periodically.
  • the periodically reported channel state information CSI is referred to as periodic channel state information CSI
  • the non-periodically reported channel state information CSI is referred to as non-period channel state information CSI.
  • the uplink control information UCI including the periodic CSI is transmitted on the physical uplink control channel (PUCCH: Physical Uplink Control Channel); the uplink control information UCI including the aperiodic channel state information CSI is on the physical uplink shared channel (PUSCH: Physical Uplink)
  • the shared channel can be multiplexed with uplink data (such as UL-SCH data: Uplink Shared Channel data), or can be transmitted separately on the physical uplink shared channel PUSCH when there is no uplink data.
  • the base station sends downlink control signaling (DCI: Downlink Control Information) to the user equipment UE, and the downlink control signaling DCI indicates that the user equipment UE reports the aperiodic channel state information CSI, and allocates the non-period to the user equipment UE.
  • DCI Downlink Control Information
  • Corresponding physical uplink shared channel (PUSCH) resources used by the CSI when the user equipment UE receives the downlink control information DCI, the aperiodic channel state information CSI may be reported according to the resource indicated in the downlink control signaling DCI.
  • the channel state information CSI is included in the uplink control information UCI and transmitted to the base station through the PUSCH.
  • 1 bit in DCI format 0 is used to trigger the user equipment UE to report aperiodic channel state information CSI.
  • LTE-A Enhanced Long Term Evolution System
  • CC Component Carrier
  • each user equipment UE is configured with only one pair of uplink and downlink component carriers CC.
  • the base station allocates at most 4 RBs to the user equipment UE, and guarantees the inclusion at a reasonable channel coding rate. Correct reception of the uplink control information UCI of the aperiodic channel state information CSI.
  • the length of the uplink control information UCI will also increase due to an increase in the number of component carriers (CC).
  • CC component carriers
  • the base station allocates a maximum of four RBs to the user equipment UE, the resource allocated by the base station to the user equipment UE to transmit the uplink control information UCI including the aperiodic channel state information CSI may be insufficient, so that the base station cannot correctly receive the uplink control information UCI.
  • the scheduling restrictions of the base station for data transmission are increased; and so far there is no way to solve the above problem.
  • An object of the present invention is to provide a resource allocation method, a method for transmitting channel state information, a base station, and a user equipment, and the number of relevant downlink component carriers corresponding to the aperiodic channel state information CSI that the base station can report according to the required user equipment.
  • the resource allocation mode is flexible, and the transmission of uplink control information including aperiodic CSI in the case of multi-carrier is supported, which effectively improves the correct reception probability of the uplink control information and reduces the scheduling restriction on the data transmission.
  • a resource allocation method includes: determining, by a base station, a non-period channel state information CSI that requires a user equipment to report a related downlink component carrier; the base station is configured according to the number of related downlink component carriers.
  • the user equipment allocates corresponding resources.
  • a base station includes: a first determining unit, configured to determine aperiodic channel state information CSI that requires a user equipment to report a related downlink component carrier;
  • a resource allocation unit configured to allocate a corresponding resource to the user equipment according to the number of the relevant downlink component carriers.
  • a method for transmitting uplink control information includes:
  • the base station generates downlink control information, where the downlink control information includes aperiodic channel state information indicating whether the user equipment reports the relevant downlink component carrier, and indicates the relevant downlink component carrier when reporting the aperiodic channel state information of the relevant downlink component carrier.
  • a method for transmitting channel state information comprising:
  • the user equipment receives downlink control information sent by the base station, where the downlink control information includes an indication. Whether the user equipment reports aperiodic channel state information of the relevant downlink component carrier, and when reporting the aperiodic channel state information of the relevant downlink component carrier, indicating indication information of the index number and quantity of the relevant downlink component carrier, code modulation a mode index number and a used resource; where the used resource is a resource allocated by the base station to the user equipment according to the number of the relevant downlink component carriers;
  • the user equipment performs aperiodic channel state information transmission according to the indication information included in the downlink control information, the coded modulation mode index number, and the used resource.
  • a base station includes: an information generating unit, configured to generate downlink control information, where the downlink control information includes an aperiodic channel state indicating whether the user equipment reports the relevant downlink component carrier.
  • Information, and indication information indicating an index number and a quantity of the relevant downlink component carrier when reporting the aperiodic channel state information of the relevant downlink component carrier, encoding a modulation mode index number and a used resource; wherein, the used resource is
  • the base station allocates resources allocated to the user equipment according to the number of related downlink component carriers;
  • a first information sending unit configured to send the downlink control information to the user equipment, so that the user equipment uses the indication information, the code modulation mode, and the used information included in the downlink control information.
  • the resources are used to transmit aperiodic channel state information.
  • a user equipment is provided, where the user equipment includes:
  • An information receiving unit configured to receive downlink control information sent by the base station, where the downlink control information includes aperiodic channel state information indicating whether the user equipment reports the relevant downlink component carrier, and reporting non-period of the downlink component carrier And the indication information indicating the index number and the quantity of the relevant downlink component carrier, the coding mode index number and the used resource; wherein the used resource is the number of the downlink component carrier according to the relevant base station The resources allocated for the user device;
  • a second information transmitting unit configured to perform aperiodic channel state information transmission according to the indication information included in the downlink control information, the coded modulation mode index number, and the used resource.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute in a base station as described above Resource allocation method.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform a transmission method of channel state information as described above in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a transmission method of channel state information as described above in a base station.
  • a computer readable program wherein when the program is executed in a user device, the program causes the computer to execute the transmission method of the channel state information as described above in the user device.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a transmission method of channel state information as described above in a user equipment.
  • the base station may allocate resources according to the number of relevant downlink component carriers corresponding to the non-period channel state information that the user equipment needs to report, so that the resource allocation mode is flexible; and supports uplink control in the case of multiple carriers.
  • the transmission of information effectively improves the correct reception probability of the uplink control information and reduces the scheduling restriction on the data transmission.
  • FIG. 2 is a schematic structural diagram of a base station according to Embodiment 2 of the present invention.
  • Embodiment 3 is a schematic structural diagram of a resource allocation unit in Embodiment 2 of the present invention.
  • FIG. 4 is a flowchart of a method for transmitting uplink control information according to Embodiment 3 of the present invention
  • FIG. 5 is a schematic structural diagram of a base station according to Embodiment 4 of the present invention.
  • FIG. 6 is a flowchart of a method for transmitting uplink control information according to Embodiment 5 of the present invention
  • FIG. 7 is a flowchart of an implementation of step 602 in Embodiment 5 of the present invention.
  • step 703 in Embodiment 5 of the present invention is a flowchart showing an implementation of step 703 in Embodiment 5 of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention.
  • Figure 10 is a block diagram showing the structure of the second information transmitting unit of Figure 9;
  • Figure 11 is a schematic diagram showing the structure of the second judging unit in Figure 10.
  • FIG. 12 is a flowchart of a method for transmitting uplink control information on a base station side according to Embodiment 7 of the present invention
  • FIG. 13 is a flow chart showing a method for transmitting uplink control information on a user equipment side according to Embodiment 7 of the present invention.
  • FIG. 1 is a flow chart of a resource allocation method according to Embodiment 1 of the present invention. As shown in Figure 1, the method includes:
  • Step 101 The base station determines that the user equipment is required to report the non-period channel state information CSI of the relevant downlink component carrier CC,
  • Step 102 The base station allocates corresponding resources to the user equipment according to the number of the related downlink component carriers CC.
  • the base station may allocate resources according to the number of relevant downlink component carriers corresponding to the non-period channel state information CSI that the user equipment needs to report, so that the resources are allocated.
  • the allocation mode is flexible, and supports the transmission of uplink control information in the case of multi-carrier, which solves the problems in the prior art.
  • the aperiodic channel state information CSI may include a channel quality indicator CQI, and for some downlink transmission modes, a precoding matrix indication PMI and a rank indication RI information may also be included.
  • the aperiodic channel state information CSI may be included in the uplink control information UCI and sent to the base station through the PUSCH.
  • the ACK/NACK information may also be included in the uplink control together with the channel state information CSI.
  • the UCI is sent to the base station through the PUSCH, and the ACK/NACK information is sent together with the aperiodic channel state information CSI, which is similar to the prior art, and is not described here.
  • the base station can select a typical modulation and coding scheme, multiple antenna processing, and HARQ process based on the uplink control information UCI reported by the user equipment UE, and adaptively adjust the data transmission dynamically.
  • the number of the related downlink component carriers CC may be one or more, and the base station allocates resources to the user equipment UE according to the number of the related downlink component carriers CC.
  • the base station allocates corresponding resources to the user equipment according to the number of the relevant downlink component carriers, and may adopt the following manner:
  • the base station determines that the user equipment UE is required to report the aperiodic channel state information CSI of the downlink component carrier CC, the number of resources (RB) allocated by the base station to the user equipment UE is a preset first value L1;
  • the base station determines that the user equipment UE needs to report the aperiodic channel state information CSI of the one or more downlink component carriers CC, and the number of resources (RB) allocated by the base station to the user equipment UE is a preset second value L2;
  • the second value L2 is greater than the first value L1, and the first value L1 and the second value L2 are determined according to a channel coding rate (CCR: Channel Coding Rate).
  • CCR Channel Coding Rate
  • the channel coding rate CCR is set to a preset range.
  • using the first value L1 and the second value L2 may cause the channel coding rate CCR to exceed the reasonable range, but since these conditions rarely occur, Therefore, it is generally considered that the above first numerical value L1 and second numerical value L2 are reasonable.
  • the following description uses the downlink component carrier CC and the two downlink component carriers CC as an example to describe the first value L1 and the second value L2.
  • the channel coding is preset If the rate CCR is less than one third, the first value L1 is at most 4. That is, the base station allocates 4 RBs to the user equipment UE at most, so that the channel coding rate CCR is within a reasonable range.
  • the second value L2 should be any value greater than 4, but in this implementation.
  • the base station in order to ensure that the non-period channel state information CSI is included in the uplink control information UCI, in order to ensure that the base station correctly receives the uplink control information UCI, the base station does not affect the normal transmission of other data or information in the system.
  • the second value L2 should be made as small as possible.
  • Table 1 shows the transmission of various uplinks in the case of three typical aperiodic channel state information CSI bit lengths (ie, loads of 100, 136, and 144) when the number of downlink component carriers is two and the number of allocated resources is four.
  • Table 2 shows how to transmit various uplink control information and sounding signals (SRS) in the case of three typical aperiodic channel state information CSI bit lengths when the number of downlink component carriers is two and the number of allocated resources is five.
  • the value of the corresponding channel coding rate CCR The value of the corresponding channel coding rate CCR.
  • Table 3 shows how to transmit various uplink control information and sounding signals (SRS) in the case of three typical aperiodic channel state information CSI bit lengths when the number of downlink component carriers is two and the number of allocated resources is six.
  • SRS uplink control information and sounding signals
  • the channel coding rate CCR is within a predetermined range.
  • the second value L2 is at most 5 or 6 is optimal.
  • the above description is made only in the case of 2 CCs.
  • the method of determining the second value L2 is similar to the above.
  • the existing algorithm can be used for the calculation method of the channel coding rate, Let me repeat.
  • the base station may allocate resources according to the number of relevant downlink component carriers corresponding to the non-period channel state information CSI that the user equipment needs to report, so that the resources are allocated.
  • the allocation method is flexible, and supports transmission of channel state information in the case of multi-carrier, which solves the problems in the prior art.
  • An embodiment of the present invention further provides a base station, as described in Embodiment 2 below. Since the principle of the problem solved by the base station is similar to the foregoing method for allocating a base station based resource, the implementation of the base station can be referred to the implementation of the method, and the repeated description is not repeated.
  • FIG. 2 is a block diagram showing the structure of a base station according to Embodiment 2 of the present invention.
  • the base station includes: a first determining unit 201 and a resource allocating unit 202;
  • the first determining unit 201 is configured to determine aperiodic channel state information CSI that is required by the user equipment to report the relevant downlink component carrier, and the resource allocating unit 202 is configured to allocate a corresponding resource to the user equipment according to the number of related downlink component carriers.
  • Figure 3 is a block diagram showing the structure of the resource allocation unit of Figure 2.
  • the resource allocation unit 202 may include a first resource allocation unit 301 and a second resource allocation unit 302.
  • the first resource allocation unit 301 is configured to determine, at the first determining unit 201, that the user equipment is required to report a downlink.
  • the maximum number of resources allocated to the user equipment is a preset first value L1;
  • the second resource allocation unit 302 is configured to: when the first determining unit 201 determines that the user equipment is required to report the aperiodic channel state information CSI of the one or more downlink component carriers, the maximum number of resources allocated to the user equipment is a preset second value. L2;
  • the second value L2 is greater than the first value L1, and the first value L1 and the second value L2 are determined according to the channel coding rate CCR.
  • the base station can allocate resources according to the number of relevant downlink component carriers that the user equipment needs to report the non-period CSI information, so that the resource allocation mode is flexible, and the information transmission in the case of multi-carrier is supported, and the current solution is solved.
  • the method includes:
  • Step 401 The base station generates downlink control information DCI, where the downlink control information DCI includes aperiodic channel state information CSI indicating whether the user equipment UE reports the relevant downlink component carrier CC, and an aperiodic channel that reports the related downlink component carrier CC
  • the status information CSI indicates indication information of the index number and the number of the relevant downlink component carrier CC, a coded modulation mode (MCS) index number, and a used resource RB; wherein the used resource RB is the base station according to the relevant downlink component
  • the number of carriers is the resource allocated by the user equipment;
  • Step 402 The base station sends the downlink control information DCI to the user equipment UE, so that the user equipment UE performs aperiodic according to the indication information, the code modulation mode index number, and the used resource included in the downlink control information DCI. Transmission of channel state information CSI.
  • the base station may generate the downlink control information DCI according to the transmission mode and the system requirement, to indicate the user.
  • the device UE reports the channel state information UCI; wherein, in the generated downlink control information DCI, the base station allocates the used resource to the user equipment UE according to the number of relevant downlink component carriers CC.
  • the corresponding indication information and the preset coding adjustment mode index number may be selected according to the correspondence between the pre-configured indication information and the set of downlink component carriers CC.
  • the process of generating the downlink control information DCI may adopt an existing method, and details are not described herein again.
  • the method for the base station to allocate the corresponding resource to the user equipment UE according to the number of the relevant downlink component carrier CC is as described in Embodiment 1, and details are not described herein again.
  • the downlink control information DCI generated in step 101 can be transmitted in the physical downlink control channel PDCCH.
  • the bit information in DCI format 0 or DCI format 4 can be used for bearer.
  • Table 4 shows bearer information and length of DCI format 0 in the LTE-A system according to the embodiment of the present invention.
  • FIG. 5 is bearer information and length of DCI format 4 in an LTE-A system according to an embodiment of the present invention.
  • the 2-bit "CQI request" in Table 4 or Table 5 may be used to carry the above indication.
  • Information therefore, the corresponding status can be "00", “01”, “10”, “11”.
  • the above four states may be used to respectively report whether to report aperiodic channel state information CSI, and a set of different downlink component carriers when instructing to report aperiodic channel state information CSI.
  • the aperiodic channel state information CSI when 2 bits is "00", it may be indicated that the aperiodic channel state information CSI is not reported, and only the uplink data is transmitted on the PUSCH.
  • the 2 bit is "01/10”
  • the non-periodic CSI may be reported, and the number of downlink component carriers CC included in the set of the downlink component carrier CC is 1; when the 2bit is "11", the report aperiodic may be indicated.
  • the channel state information CSI, the number of downlink component carriers CC included in the set of downlink component carriers CC is one or more, such as 2 CCs, and also indicates the index number of each component carrier CC.
  • the corresponding relationship can be configured on the base station side through high-layer signaling, and the corresponding relationship is stored, and is used by the base station when generating downlink control information.
  • the foregoing indication manner is only an embodiment of the present invention, and the foregoing indication information may also be configured according to a specific situation.
  • the uplink control information UCI including the aperiodic CSI transmitted on the PUSCH may be classified into: 1) the uplink control The information UCI is transmitted on the PUSCH (CQI-only PUSCH), that is, the uplink data is not transmitted when the aperiodic CSI is transmitted; 2) the uplink control information UCI is transmitted on the PUSCH together with the uplink data, that is, the aperiodic is transmitted.
  • the uplink data is also transmitted during the CSI.
  • the method may be used to determine the manner in which the uplink control information is transmitted according to the specific combination of the indication information, the modulation and coding mode, and the number of resources used. This part will be described in detail in Embodiment 5.
  • the base station needs to configure a set of multiple related downlink component carriers CC for the user equipment UE in advance, and store the set and the indication information, such as the 2-bit information in the DCI format O/4, and store the corresponding information.
  • the corresponding relationship is also stored on the user equipment UE side, so that the user equipment UE determines whether to send aperiodic CSI according to the indication information, and determines the number and index number of the relevant downlink component carrier CC when transmitting the aperiodic CSI (Inde X ).
  • the method before the base station generates the DCI for the user equipment UE that needs to report the aperiodic channel state information CSI, the method further includes:
  • the base station configures, by the user equipment UE, a set of multiple sets of related downlink component carriers CC; and stores the indication information corresponding to the set of the plurality of related downlink component carriers CC;
  • the base station when the base station generates the downlink control information DCI, according to the relevant downlink component Select the corresponding indication information for the index number and number of the wave CC.
  • Table 6 and Table 7 are respectively a table corresponding to the set of indication information of the base station through the high layer signaling and the set of related downlink component carriers CC according to the embodiment of the present invention.
  • Table 6 and Table 7 are only embodiments of the present invention, but the present invention is not limited to the above corresponding relationship, and the base station can be configured according to actual conditions.
  • the correspondence table is also stored on the user equipment side. For example, when the base station learns that the user equipment UE is required to report the channel state information CSI of the downlink component carrier CC of all system configurations, and the channel state information When the CSI is included in the uplink control information UCI transmission, the base station can know that the corresponding indication information is "11" through Table 7, and "11" is carried by the "CQI request" in the DCI.
  • the indication information "11" can be read from the DCI, and by looking up the table 7, the uplink of the aperiodic channel state information CSI including the downlink component carriers of all system configurations is reported. Control information UCI.
  • the related downlink component carrier CC may be an uplink component carrier of the PUSCH carrying the uplink control information UCI.
  • SIB-2 System Information Block-2
  • the relevant downlink component carrier CC may not be
  • the downlink component carrier CC corresponding to the uplink component carrier CC of the PUSCH carrying the aperiodic CSI is linked by the system information (SIB-2), as in the case of "10" in Table 6.
  • the uplink component carrier (UL CC) is configured with UL CC #1, UL CC #2; the downlink component carrier CC is configured with DL CC #1, DL CC #2, and DL CC#3 ; wherein, UL CC #1 and DL CC#1 is the relationship of the system information (SIB-2) link, and the relationship between UL CC #2 and DL CC#3 is the system information (SIB-2) link.
  • the uplink control information UCI of the UL CCo DL CC#2 without the system information (SIB-2) link of the DL CC#2 may be transmitted through the UL CC #1 or the UL CC#2.
  • DCI format 0 is a PUSCH on the scheduling UL CC #1, and when the indication information in the DCI format 0 is '10', it indicates that the non-period CSI of the DL CC#2 will be transmitted on the PUSCH on the UL CC #1. .
  • the related downlink component carrier CC when the number of the related downlink component carriers CC is one or more, the related downlink component carrier CC may be one or more downlink component carriers CC that are configured or activated. As in the case of "11” in Table 7, other downlink component carriers CC may be used, as in the case of "11” in Table 6 and "10" in Table 7.
  • the base station may allocate resources according to the number of related downlink component carriers that the user equipment reports the non-period channel state information CSI, so that the resource allocation mode is flexible, and the uplink control information in the case of supporting multiple carriers is supported.
  • Transmission solves the problems in the prior art. And ensuring the base station when the user equipment uses the resource allocated by the base station according to the quantity of the downlink component carrier to transmit the uplink control information including the aperiodic CSI. Receive the correct rate of information and reduce scheduling restrictions on data transmission.
  • An embodiment of the present invention further provides a base station, as described in Embodiment 4 below.
  • the method for solving the problem is similar to the method for transmitting the base station-based uplink control information in the foregoing Embodiment 3. Therefore, the implementation of the base station may refer to the implementation of the method, and the repeated description is not repeated.
  • FIG. 5 is a block diagram showing the structure of a base station according to Embodiment 4 of the present invention.
  • the base station includes an information generating unit 501 and a first information transmitting unit 502;
  • the information generating unit 501 is configured to generate downlink control information DCI, where the downlink control information includes aperiodic channel state information CSI indicating whether the user equipment UE reports the relevant downlink component carrier CC, and reporting an aperiodic of the relevant downlink component carrier CC
  • the channel state information CSI indicates indication information of the index number and the number of the relevant downlink component carrier CC, a coded modulation mode (MCS) index number, and a used resource RB; wherein the used resource RB is a base station according to the relevant downlink component carrier CC The number of resources allocated for the user equipment UE.
  • the first information sending unit 502 is configured to send the downlink control information DCI to the user equipment UE, so that the user equipment UE performs aperiodic according to the indication information, the code modulation mode index number, and the used resource included in the downlink control information DCI. Transmission of channel state information CSI.
  • the information generating unit 501 may generate the downlink control information DCI according to the transmission mode and the system requirement, to indicate the user equipment UE.
  • the non-period CSI is reported; wherein, in the generated downlink control information DCI, the used resource is a resource allocated by the base station to the user equipment UE according to the number of relevant downlink component carriers CC.
  • the downlink control information DCI may be transmitted in the PUCCH by using the DCI.
  • the indication information may be carried by using a 2-bit "CQI request" in the DCI format 0 or 4, as described in Embodiment 3, and details are not described herein again.
  • the base station further includes a resource allocation unit 503, configured to allocate a corresponding resource to the user equipment UE according to the number of related downlink component carriers CC.
  • the resource allocation unit 503 may include a first resource allocation unit and a second resource allocation unit (not shown in the figure, similar to 301 and 302 in FIG.
  • the first resource allocation unit is configured to require the user
  • the device reports the aperiodic channel state information CSI of the downlink component carrier
  • the number of resources allocated to the user equipment UE is a preset first value L1
  • the second resource allocation unit is configured to report more than one user equipment UE
  • Aperiodic channel state information of downlink component carriers At the time of CSI, the number of resources allocated for the user equipment UE is at most a preset second value L2; wherein the second value L2 is greater than the first value L1, and the first value L1 and the second value L2 are determined according to the channel coding rate CCR.
  • the specific example of the determination of L1 and L2 is as described in Embodiment 1, and details are not described herein again.
  • the base station may further include a configuration unit 505 and a storage unit 506.
  • the configuration unit 505 is configured to configure, for the user equipment UE, a set of multiple related downlink component carriers CC.
  • the storage unit 506 is configured to store the indication information corresponding to the set of the plurality of related downlink component carriers CC, as shown in Table 6 and Table 7.
  • the information generating unit 501 selects corresponding indication information according to the index number and the number of the relevant downlink component carrier CC.
  • the information generating unit 501 determines that the user equipment is required to report the aperiodic channel state information of the relevant downlink component carrier CC, the information indicating the corresponding indication information, the code modulation mode, and the used resource may be generated according to the actual situation.
  • the control information DCI is then sent to the user equipment. Since the base station can allocate resources according to the number of downlink component carriers, the resource allocation mode is flexible, and the transmission of uplink control information in the case of multiple carriers is supported.
  • Figure 6 is a flow chart showing a method of transmitting uplink control information according to Embodiment 5 of the present invention. As shown in Figure 6, the method includes:
  • Step 601 The user equipment UE receives the downlink control information DCI sent by the base station, where the downlink control information DCI includes aperiodic channel state information CSI indicating whether the user equipment UE reports the relevant downlink component carrier CC, and reports the relevant downlink component carrier.
  • the non-period channel state information CSI of the CC indicates the indication information of the index number and the number of the relevant downlink component carrier CC, the code modulation mode (MCS) index number and the used resource RB; wherein the used resource is the resource a resource allocated by the base station to the user equipment UE according to the number of the related downlink component carriers CC;
  • the base station may send the downlink control information DCI through the PDCCH, and the user equipment UE may read the indication information in the downlink control information DCI, the code modulation mode (MCS) index number, and The information, the coded modulation mode index number, and the used resource perform aperiodic channel state information CSI transmission;
  • MCS code modulation mode
  • the user equipment UE reports the aperiodic channel state information CSI through the uplink control information UCI, and the uplink control information UCI is transmitted to the base station through the physical uplink shared channel PUSCH.
  • the uplink control information UCI transmitted on the PUSCH can be divided into: 1) the uplink control information UCI is separately transmitted on the PUSCH (CQI-only PUSCH), that is, the uplink data is not sent when the aperiodic CSI is sent; 2) the uplink control The information UCI is transmitted on the PUSCH together with the uplink data, that is, the uplink data is also transmitted when the aperiodic CSI is transmitted.
  • the uplink control information UCI may be determined according to the specific combination of the indication information, the modulation and coding scheme, and the number of resources used, and the procedure will be described in detail below.
  • the channel state information CSI is included in the uplink control information UCI and transmitted to the base station through the PUSCH.
  • the ACK/NACK information may be transmitted to the base station by using the uplink control information UCI together with the aperiodic channel state information CSI, and whether the ACK/NACK information is transmitted similarly to the aperiodic CSI is similar to the prior art. No longer.
  • FIG. 7 is a flowchart of a method for implementing step 602 in Embodiment 5 of the present invention.
  • the user equipment UE performs aperiodic CSI transmission according to the indication information, the coded modulation mode index number, and the used resource included in the downlink control information DCI, and may adopt the following manner:
  • Step 701 User equipment The UE determines whether it is necessary to report the aperiodic channel state information CSI of the relevant downlink component carrier CC according to the indication information in the received downlink control information DCI; if the determination result is yes, step 702 is performed, and if the determination result is no, Execution step 705; wherein the indication information may be carried by a 2-bit "CQI request" in DCI format 0 or DCI format 4;
  • the user equipment UE may determine whether to report the aperiodic channel state information CSI of the relevant downlink component carrier CC according to the indication information and the correspondence between the pre-stored indication information and the set of downlink component carriers;
  • Step 702 In step 701, if the result of the determination is that the aperiodic channel state information CSI needs to be reported, the user equipment UE determines the correlation according to the indication information and the correspondence between the pre-stored indication information and the downlink component carrier set.
  • the index number and the number of the downlink component carrier may be determined according to the correspondence between Table 6 or Table 7 and specific indication information. For example, as shown in Table 6, if it can be determined that the indication information is "01", it is known that the transmission is
  • the uplink control information UCI includes a non-period CSI of one downlink CC, and the index number of the downlink CC is 1.
  • Step 703 Determine, according to the determined number of the relevant downlink component carriers, and the corresponding coded modulation mode index number and the used resource, whether to send only the uplink control information UCI including the aperiodic CSI; if the determination result is only sending The uplink control information UCI, then step 704 is performed, otherwise step 706 is performed;
  • Step 704 In step 703, if the determination result is yes, the user equipment UE sends the uplink control information UCI including the aperiodic CSI through the PUSCH on the resource allocated by the base station for the user equipment UE at a predetermined time. Sending uplink data at different times;
  • the user equipment UE sends the UCI including the aperiodic CSI on the used resource allocated by the base station to the user equipment UE, and the UCI may further include the ACK/NACK information and the aperiodic CSI.
  • Step 705 In step 701, if the determination result is no, the user equipment UE transmits only uplink data on the PUSCH.
  • the uplink control information UCI including the aperiodic CSI and the uplink data may be transmitted, the uplink control information UCI including the aperiodic CSI may be sent to the base station through the PUSCH together with the uplink data by multiplexing, that is, the uplink information
  • the uplink control information of the aperiodic CSI uses a part of the resources of the uplink data, and the part of the resources does not need to be additionally indicated by the signaling, and the user equipment UE and the base station pre-agreed the resources used in this case.
  • FIG. 8 is a flowchart of a method for implementing step 703 in Embodiment 5 of the present invention. As shown in Figure 8, the following steps are included:
  • Step 801 Determine that the number of related downlink component carriers CC is one or more; If the result of the determination is one, step 802 is performed. If the result of the determination is one or more, step 805 is executed.
  • Step 802 When the related downlink component carrier CC is one, further determine whether the modulation and coding mode index is the first preset value, and whether the used resource is less than or equal to the first value; if the determination result is yes, execute the step 803; Otherwise, step 804 is performed;
  • step 803 if the result of the determination in step 802 is YES, it may be determined that only the uplink control information UCI including the non-period channel control information CSI is transmitted, and the uplink data is not transmitted.
  • Step 804 If the determination result is negative in step 802, it may be determined to send the channel control information CSI uplink control information UCI and uplink data that includes aperiodic.
  • Step 805 When the result of the determination in step 801 is that the number of the downlink component carriers CC is one or more, it is further determined whether the modulation and coding mode index is a second preset value, and whether the used resource is less than or equal to the second value; If the result of the determination is yes, then step 806 is performed; otherwise, step 805 is performed;
  • step 806 if the result of the determination in step 805 is YES, it may be determined that only the uplink control information UCI including the non-period channel state information CSI is transmitted, and the uplink data is not transmitted.
  • Step 807 If the result of the determination in step 805 is no, it may be determined to send the CSI uplink control information UCI and the uplink data including the aperiodic channel state information.
  • the user equipment UE may determine the number of related downlink component carriers CC according to the received indication information, and determine aperiodic channel state information according to the number of the downlink component carriers CC, the modulation and coding manner, and the used resources.
  • the aperiodic channel state information CSI may be included in the uplink control information UCI. The method is applicable to the transmission of the uplink control information in the case of multiple carriers, and solves the problems in the prior art.
  • FIG. 9 is a schematic diagram showing the structure of a user equipment according to Embodiment 6 of the present invention. As shown in FIG. 9, the user equipment includes: an information receiving unit 901 and a second information sending unit 902;
  • the information receiving unit 901 is configured to receive downlink control information sent by the base station, where the downlink control information includes aperiodic channel state information indicating whether the user equipment reports the relevant downlink component carrier, and reporting an aperiodic channel state of the relevant downlink component carrier.
  • the information indicating the index number and the number of the relevant downlink component carrier, the coding mode index number, and the used resource; wherein the used resource is a resource allocated by the base station to the user equipment according to the number of relevant downlink component carriers;
  • the second information sending unit 902 is configured to perform aperiodic transmission of channel state information according to the indication information included in the downlink control information, the coded modulation mode index number, and the used resource.
  • Figure 10 is a block diagram showing the structure of the second information transmitting unit of Figure 9. As shown in FIG. 10, the second information transmitting unit 902 includes:
  • the first determining unit 1001 is configured to determine, according to the indication information, whether the aperiodic channel state information of the relevant downlink component carrier needs to be reported;
  • the carrier determining unit 1002 is configured to determine, according to the indication information, and the correspondence between the pre-stored indication information and the downlink component carrier set, the relevant downlink component carrier, when the result of the determination by the first determining unit 1001 is that the aperiodic channel state information needs to be reported.
  • Index number and quantity are configured to determine, according to the indication information, and the correspondence between the pre-stored indication information and the downlink component carrier set, the relevant downlink component carrier, when the result of the determination by the first determining unit 1001 is that the aperiodic channel state information needs to be reported.
  • the second determining unit 1003 is configured to determine, according to the number of related downlink component carriers determined by the carrier determining unit 1002, the corresponding coded modulation mode index number, and the used resource, whether to send only non-period channel state information;
  • the third information transmitting unit 1004 is configured to: when the determination result of the second determining unit 1003 is that the uplink data is not sent when the aperiodic channel state information is sent, send the aperiodic on the used resource allocated by the base station for the user equipment. Channel status information;
  • the fourth information transmitting unit 1005 is configured to: when the determination result of the second determining unit 1003 is not only to send the aperiodic channel state information but also to send the uplink data, the user equipment sends the used resource allocated by the base station to the user equipment. Aperiodic channel state information and uplink data.
  • the user equipment UE may further include a storage unit (not shown) for storing a correspondence table between the indication information and the downlink component carrier set for use by the user equipment UE.
  • Figure 11 is a block diagram showing the structure of the second judging unit of Figure 10; As shown in FIG. 11, the second determining unit 1003 includes: The third determining unit 1101 is configured to determine that the number of related downlink component carriers is one or more;
  • the fourth determining unit 1102 is configured to: when the determining result of the third determining unit 1101 is that the number of related downlink component carriers is one, further determining whether the coded modulation mode index number included in the downlink control information is a preset index number, and Whether the used resource is less than or equal to the preset first value; or, when the determination result of the third determining unit 1101 is that the number of related downlink component carriers is one or more, further determining the code modulation included in the downlink control information Whether the mode index number is a preset index number, and whether the used resource is less than or equal to a preset second value; wherein, the second value is greater than the first value; determining the first value and the second value according to the channel coding rate;
  • the first determining unit 1103 is configured to: when the determination result of the fourth determining unit 1102 is YES, determine that the uplink data is not sent when the aperiodic channel state information is sent;
  • the second determining unit 1104 is configured to, when the determination result of the fourth determining unit 1102 is negative, determine that the uplink data is further sent when the aperiodic channel state information is sent.
  • the user equipment UE may report the aperiodic channel state information CSI through the uplink control information UCI, and the uplink control information UCI is transmitted to the base station through the physical uplink shared channel PUSCH.
  • the implementation method of each functional unit in the second information sending unit 902 can be implemented in the manners described in Embodiments 7 and 8 of Embodiment 5, and details are not described herein again.
  • the user equipment UE may determine the number of related downlink component carriers CC according to the received indication information, and determine aperiodic channel state information according to the number of the downlink component carriers CC, the modulation and coding manner, and the used resources.
  • the method is applicable to the transmission of uplink control information in the case of multi-carrier, ensuring the correct rate of receiving the uplink control information by the base station, and reducing the scheduling limitation of the base station for data transmission.
  • the foregoing embodiment is applicable to the LTE-A system.
  • FIG. 12 is a flowchart of a method for transmitting uplink control information on a base station side according to Embodiment 7 of the present invention. As shown in FIG. 12, the method includes: Step 1201: The base station configures, by the user equipment UE, a set of multiple sets of related downlink component carriers CC, and stores the indication information corresponding to the set of the multiple sets of related downlink component carriers CC;
  • Table 6 As shown in Table 6 or Table 7, in the embodiment of the present invention, Table 6 is taken as an example for description.
  • Step 1202 When the base station determines that the user equipment UE needs to report the aperiodic CSI on the relevant downlink component carrier CC, if it is determined that the acyclic CSI on the downlink component carriers 1 and 2 needs to be reported, the base station combines the transmission mode and the system. It is required to generate corresponding DCI source bits, and the generation process can adopt existing technologies, and details are not described herein again;
  • Step 1203 The base station adds a Cyclic Redundancy Check (CRC) to the generated DCI source bit.
  • CRC Cyclic Redundancy Check
  • Step 1204 Perform modulation coding and rate matching on the CRC-added DCI source bits.
  • Step 1205 A physical control channel PDCCH is formed, mapped to a corresponding physical time-frequency resource, and sent to the user equipment UE by using a PDCCH.
  • FIG. 13 is a flow chart showing a method for transmitting uplink control information on the user equipment side according to Embodiment 7 of the present invention.
  • the user equipment UE detects the possible DCI according to the transmission mode, and then determines whether to send the uplink control information UCI including the aperiodic CSI according to the detected DCI, or whether to send only the uplink control information UCI including the aperiodic CSI, as shown in the figure.
  • the method specifically includes:
  • Step 1301 The user equipment UE receives the PDCCH on the corresponding time-frequency resource, and receives the downlink control information DCI.
  • Step 1302 Perform de-rate matching on the downlink control information DCI, and demodulate and decode. Step 1303, determining whether the CRC check is correct or incorrect; if the judgment result is correct, executing step 1304, otherwise executing step 1308.
  • Step 1304 In step 1303, if the result of the determination is that the CRC check is correct, the method further determines whether to send the channel including the aperiod according to the indication information, the MSC index number, and the used resource in the read downlink control information DCI.
  • step 1305 if the result of the determination is correct in step 1304, further determine the number of downlink component carriers CC;
  • the number of downlink component carriers is two.
  • Step 1306 the user equipment UE further determines whether the MCS is equal to 29 according to the number of downlink component carriers, and whether the used resource RB is less than or equal to 5; if the determination result is yes, step 1306 is performed, otherwise the step is executed. 1311 ;
  • L2 5
  • the index number of the MCS is 29, and the judgment result is YES.
  • Step 1307 in step 1305, if the result is YES, the user equipment UE sends uplink control information UCI including aperiodic CSI on the used resource allocated by the base station to the user equipment UE at a predetermined time, and Only the uplink control information UCI including the aperiodic CSI is transmitted, and the uplink data is not transmitted.
  • Step 1309 in step 1308, if the determination result is yes, the PDCCH is discarded, and the process ends.
  • Step 1310 In step 1304, if the determination result is no, the uplink data is sent only through the PUSCH, and then the process ends (not shown).
  • Step 1311 In step 1306, if the determination result is no, the uplink data and the uplink control information UCI including the aperiodic channel state information CSI are sent through the PUSCH;
  • the uplink control information UCI including the aperiodic CSI may be sent to the base station through the PUSCH together with the uplink data in a multiplexed manner, that is, the uplink control information for transmitting the aperiodic CSI uses part of the resources of the uplink data, and This part of the resource does not need to be additionally indicated by signaling, and the user equipment UE and the base station pre-agreed the resources used in this case.
  • the other processes are similar to those of FIG. 13, and are not described herein again.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to execute the resource allocation method as in Embodiment 1 in the base station.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the resource allocation method as in Embodiment 1 in the base station.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to execute the transmission method of the channel state information as in Embodiment 3 or 7 in the base station.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a transmission method of channel state information as in Embodiments 3 and 7 in a base station.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment, the program causes the computer to execute a transmission method of channel state information as in Embodiment 4 or 7 in the user equipment.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute a transmission method of channel state information as in Embodiment 4 or 7 in a user equipment.
  • the base station can allocate corresponding resources to the user equipment according to the number of downlink component carriers, so that the resource allocation is flexible.
  • the multi-carrier transmission of the uplink control information including the aperiodic channel state information can be supported, and the base station is guaranteed to receive the uplink. Control the correct rate of information and reduce the scheduling restrictions of the base station on data transmission.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or a step.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Description

资源分配方法、 信道状态信息的传输方法、 基站和用户设各 技术领域
本发明涉及一种无线通信领域, 特别涉及一种资源分配方法、 信道 状态信息的传输方法、 基站和用户设备。 背景技术
在长期演进系统 (LTE: Long-term Evolution System) 中, 用户设备 (UE : User Equipment) 通过测量下行链路参考信号, 获得下行链路的 信道状态信息 (CSI: Channel State Information) , 并通过上行链路向基站 报告,该信道状态信息 CSI包括下行链路的信道质量指示(CQI: Channel Quality Indicator), 对于某些下行链路传输模式, 也包括预编码矩阵指示 (PMI: Precoding Matrix Indicator)及秩旨示 (RI : Rank Indication) 信 息。上述信道状态信息 CSI、接收应答 ACK/NACK信息及调度请求(SR: Scheduling Request ) 统称为上行控制信息 ( UCI: Uplink Control Information 上行控制信息 UCI可仅包含一种上述信息, 或多种上述信 息。 基站基于用户设备 UE报告的上行控制信息 UCI选择典型的调制编 码方法、 多天线处理及自动混合请求重传 HARQ等, 自适应地动态调整 数据发送。
目前, 上行控制信息 UCI中的信道状态信息 CSI, 可周期地和非周 期地报告。 此处为了描述方便, 将周期地报告的信道状态信息 CSI称为 周期的信道状态信息 CSI,将非周期地上报的信道状态信息 CSI称为非周 期的信道状态信息 CSI。 通常, 包含周期的 CSI的上行控制信息 UCI在 物理上行控制信道 (PUCCH: Physical Uplink Control Channel) 上发送; 包含非周期的信道状态信息 CSI的上行控制信息 UCI在物理上行共享信 道(PUSCH: Physical Uplink Shared Channel )上发送,可与上行数据(如 UL-SCH数据: Uplink Shared Channel数据) 复用, 亦可在没有上行数据 时单独在物理上行共享信道 PUSCH上传送。
在需要用户设备 UE上报非周期的信道状态信息 CSI时, 可采用如 下方式:在基站需要用户设备 UE报告非周期的信道状态信息 CSI时, 该 基站向用户设备 UE 发送下行控制信令 (DCI : Downlink Control Information), 通过该下行控制信令 DCI指示该用户设备 UE报告非周期 的信道状态信息 CSI, 以及为该用户设备 UE分配报告该非周期的 CSI所 使用的相应的物理上行共享信道 (PUSCH) 资源; 当该用户设备 UE接 收到该下行控制信息 DCI时, 可根据该下行控制信令 DCI中指示的资源 报告非周期的信道状态信息 CSI,并且将该信道状态信息 CSI包含在上行 控制信息 UCI中通过 PUSCH向基站发送。
在 LTE系统中, 使用 DCI format 0中的 1比特来触发用户设备 UE 报告非周期的信道状态信息 CSI。 在增强的长期演进系统 (LTE-A: Advanced Long-term Evolution System) 中, 由于系统可支持多个分量载 波 (CC: Component Carrier) 的传输, 目前最多支持 5个分量载波 CC, 因此, 为灵活地指示用户设备 UE报告多个下行分量载波 CC的上行控制 信息 UCI, 使用 DCI format 0/DCI format 4中的 2比特来触发用户设备 UE报告非周期的信道状态信息 CSI, 并且指示报告所对应的下行分量载 波 CC的索引号及数目。
在实现本发明的过程中发明人发现现有技术中存在如下问题: 在 LTE系统中, 每个用户设备 UE仅配置 1对上下行分量载波 CC。 当用户设备 UE在没有数据的物理上行共享信道 PUSCH上发送包含非周 期的信道状态信息 CSI的上行控制信息 UCI时, 基站最多为该用户设备 UE分配 4个 RB, 以合理的信道编码速率保证包含非周期的信道状态信 息 CSI的上行控制信息 UCI的正确接收。
但是在 LTE-A系统中, 由于分量载波(CC)数目的增加, 上行控制 信息 UCI的长度也将增加。 若基站最多为该用户设备 UE分配 4个 RB, 则基站分配给用户设备 UE发送包含非周期信道状态信息 CSI的上行控制 信息 UCI的资源可能不足, 从而无法保证基站正确接收该上行控制信息 UCI, 增加了基站对数据传输的调度限制; 并且到目前为止还没有可解决 上述问题的方法。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方 案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。 不 能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技 术方案为本领域技术人员所公知。 发明内容
本发明实施例的目的在于提供一种资源分配方法、 信道状态信息的 传输方法、 基站和用户设备, 基站可根据需要用户设备报告的非周期的 信道状态信息 CSI所对应的相关下行分量载波的数量来分配资源, 使得 资源分配方式灵活, 并且支持多载波情况下的包含非周期的 CSI 的上行 控制信息的传输, 有效地提高了上行控制信息的正确接收概率, 减小对 数据传输的调度限制。
根据本发明实施例的一个方面提供了一种资源分配方法, 该方法包 括: 基站确定需要用户设备报告相关下行分量载波的非周期的信道状态 信息 CSI ;该基站根据该相关下行分量载波的数量为该用户设备分配相应 的资源。
根据本发明实施例的另一个方面提供了一种基站, 该基站包括: 第一确定单元, 该第一确定单元用于确定需要用户设备报告相关下 行分量载波的非周期的信道状态信息 CSI ;
资源分配单元, 该资源分配单元用于根据该相关下行分量载波的数 量为该用户设备分配相应的资源。
根据本发明实施例的另一个方面提供了一种上行控制信息的传输方 法, 该方法包括:
基站生成下行控制信息, 该下行控制信息包括指示用户设备是否报 告相关下行分量载波的非周期的信道状态信息、 以及在报告相关下行分 量载波的非周期的信道状态信息时指示该相关下行分量载波的索引号和 数量的指示信息, 编码调制方式索引号和所使用的资源; 其中, 所使用 的资源是该基站根据该相关下行分量载波的数量为该用户设备分配的资源; 该基站向该用户设备发送该下行控制信息, 以使该用户设备根据该 下行控制信息中包含的指示信息、 编码调制方式索引号和所使用的资源 进行非周期的信道状态信息的发送。
根据本发明实施例的另一个方面提供了一种信道状态信息的传输方 法, 该方法包括:
用户设备接收基站发送的下行控制信息, 该下行控制信息包括指示 该用户设备是否报告相关下行分量载波的非周期的信道状态信息、 以及 在报告相关下行分量载波的非周期的信道状态信息时, 指示该相关下行 分量载波的索引号和数量的指示信息, 编码调制方式索引号和所使用的 资源; 其中, 所使用的资源是该基站根据该相关下行分量载波的数量为 该用户设备分配的资源;
该用户设备根据该下行控制信息中包含的指示信息、 编码调制方式 索引号和所使用的资源进行非周期的信道状态信息的发送。
根据本发明实施例的另一个方面提供了一种基站, 该基站包括: 信息生成单元, 用于生成下行控制信息, 该下行控制信息包括指示 用户设备是否报告相关下行分量载波的非周期的信道状态信息、 以及在 报告相关下行分量载波的非周期的信道状态信息时指示该相关下行分量 载波的索引号和数量的指示信息, 编码调制方式索引号和所使用的资源; 其中, 所使用的资源是该基站根据该相关下行分量载波的数量为该用户 设备分配的资源;
第一信息发送单元, 该第一信息发送单元用于向该用户设备发送该 下行控制信息, 以使该用户设备根据该下行控制信息中包含的指示信息、 编码调制方式索弓 I号和所使用的资源进行非周期的信道状态信息的发送。
根据本发明实施例的另一个方面提供了一种用户设备, 该用户设备 包括:
信息接收单元, 该信息接收单元用于接收基站发送的下行控制信息, 该下行控制信息包括指示该用户设备是否报告相关下行分量载波的非周 期的信道状态信息、 以及在报告相关下行分量载波的非周期的信道状态 信息时, 指示该相关下行分量载波的索引号和数量的指示信息, 编码调 制方式索引号和所使用的资源; 其中, 所使用的资源是该基站根据该相 关下行分量载波的数量为该用户设备分配的资源;
第二信息发送单元, 该第二信息发送单元用于根据该下行控制信息 中包含的指示信息、 编码调制方式索引号和所使用的资源进行非周期的 信道状态信息的发送。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序 的存储介质, 其中该计算机可读程序使得计算机在基站中执行如上所述 的资源分配方法。
根据本发明实施例的另一个方面提供了一种计算机可读程序, 其中 当在基站中执行该程序时, 该程序使得计算机在该基站中执行如上所述 的信道状态信息的传输方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序 的存储介质, 其中该计算机可读程序使得计算机在基站中执行如上所述 的信道状态信息的传输方法。
根据本发明实施例的另一个方面提供了一种计算机可读程序, 其中 当在用户设备中执行该程序时, 该程序使得计算机在该用户设备中执行 如上所述的信道状态信息的传输方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序 的存储介质, 其中该计算机可读程序使得计算机在用户设备中执行如上 所述的信道状态信息的传输方法。
本发明实施例的有益效果在于: 基站可根据需要用户设备报告非周 期的信道状态信息所对应的相关下行分量载波的数量来分配资源, 使得 资源分配方式灵活; 并且支持多载波情况下的上行控制信息的传输, 有 效地提高了上行控制信息的正确接收概率, 减小对数据传输的调度限制。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明 了本发明的原理可以被采用的方式。 应该理解, 本发明的实施方式在范 围上并不因而受到限制。 在所附权利要求的精神和条款的范围内, 本发 明的实施方式包括许多改变、 修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在 一个或更多个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的特征。
应该强调, 术语 "包括 /包含"在本文使用时指特征、 整件、 歩骤或 组件的存在, 但并不排除一个或更多个其它特征、 整件、 歩骤或组件的 存在或附加。 附图说明
从以下结合附图的详细描述中, 本发明实施例的上述以及其他目的、 特征和优点将变得更加显而易见, 在附图中: 图 1是本发明实施例 1的资源分配方法流程图;
图 2是本发明实施例 2的基站的结构示意图;
图 3是本发明实施例 2中资源分配单元的构成示意图;
图 4是本发明实施例 3的上行控制信息的传输方法流程图; 图 5是本发明实施例 4的基站构成示意图;
图 6是本发明实施例 5的上行控制信息的传输方法流程图; 图 7是本发明实施例 5中歩骤 602的实现流程图;
图 8是本发明实施例 5中歩骤 703的实现流程图;
图 9是本发明实施例 6的用户设备的构成示意图;
图 10是图 9中第二信息发送单元的构成示意图;
图 11是图 10中第二判断单元的构成示意图;
图 12是本发明实施例 7的基站侧的上行控制信息的传输方法流程图; 图 13是本发明实施例 7的用户设备侧的上行控制信息的传输方法流 程图。
具体实施方式
下面结合附图对本发明的各种实施方式进行说明。 这些实施方式只 是示例性的, 不是对本发明的限制。 为了使本领域的技术人员能够容易 地理解本发明的原理和实施方式, 本发明的实施方式以在 10MHz宽带下 增强的长期演进 (LTE-A: Long Term Evaluation Advanced) 系统为例进 行说明, 但可以理解, 本发明并不限于上述系统, 对于涉及多载波的非 周期的信道状态信息传输的其他系统均适用。
图 1是本发明实施例 1的资源分配方法流程图。 如图 1所示, 该方 法包括:
歩骤 101, 基站确定需要用户设备报告相关下行分量载波 CC的非周 期的信道状态信息 CSI,;
歩骤 102, 该基站根据该相关下行分量载波 CC的数量为该用户设备 分配相应的资源。
由上述实施例可知, 基站可根据需要用户设备报告非周期的信道状 态信息 CSI 所对应的相关下行分量载波的数量来分配资源, 使得资源分 配方式灵活, 并且支持多载波情况下的上行控制信息的传输, 解决了现 有技术中存在的问题。
在本实施例中, 该非周期的信道状态信息 CSI可包括信道质量指示 CQI , 对于某些下行链路传输模式, 还可包括预编码矩阵指示 PMI和秩指 示 RI信息。
在本实施例中, 可将该非周期的信道状态信息 CSI包含在上行控制 信息 UCI中通过 PUSCH向基站发送, 此外, ACK/NACK信息也可与该信道 状态信息 CSI—起包含在该上行控制信息 UCI中通过 PUSCH向基站发送, 对于该 ACK/NACK信息与该非周期的信道状态信息 CSI是否一起发送, 与 现有技术类似, 此处不再赘述。这样, 该基站可基于用户设备 UE报告的 上行控制信息 UCI选择典型的调制编码方案、 多天线处理及 HARQ过程 等, 自适应的动态调整数据发送。
在本实施例中, 该相关下行分量载波 CC 的数量可为一个或一个以 上,基站根据该相关下行分量载波 CC的数量来为该用户设备 UE分配资源。
在本实施例中, 该基站根据该相关下行分量载波的数量为该用户设 备分配相应的资源, 可采用如下方式:
若该基站确定需要用户设备 UE报告一个下行分量载波 CC的非周期 的信道状态信息 CSI , 则该基站为该用户设备 UE分配的资源 (RB) 数目 最大为预设的第一数值 L1 ;若该基站确定需要用户设备 UE报告一个以上 下行分量载波 CC的非周期的信道状态信息 CSI , 则该基站为该用户设备 UE分配的资源 (RB) 数目最大为预设的第二数值 L2;
其中, 该第二数值 L2 大于第一数值 L1 , 根据信道编码率 (CCR: Channel Coding Rate ) 来确定该第一数值 L1和第二数值 L2, 通过确定 该第一数值 L1和第二数值 L2, 使得信道编码率 CCR在预设的范围, 当然 在某些情况下, 采用上述第一数值 L1和第二数值 L2可能会使信道编码 率 CCR超出该合理的范围, 但由于这些情况极少出现, 因此, 通常认为 上述第一数值 L1和第二数值 L2合理。
以下分别以一个下行分量载波 CC和 2个下行分量载波 CC为例对上 述第一数值 L1和第二数值 L2进行说明。
当为一个下行分量载波 CC时, 如与 LTE系统类似, 若预设信道编码 率 CCR小于三分之一, 则该第一数值 L1最大为 4, 即基站最多为用户设 备 UE分配 4个 RB, 即可使信道编码率 CCR在合理的范围。
当为多个下行分量载波 CC时, 以 2个下行分量载波为例, 若预设编 码率 CCR仍然为三分之一, 则该第二数值 L2应为大于 4的任何值, 但在 本实施例中, 为了不影响系统中其他数据或信息的正常传输, 在将该非 周期的信道状态信息 CSI包含在上行控制信息 UCI中传输时, 在保证基 站正确接收上行控制信息 UCI的情况下, 也应使该第二数值 L2尽量小。
表 1是在下行分量载波为 2个且分配资源数为 4时, 在三种典型的 非周期的信道状态信息 CSI比特长度(即负载为 100、 136、 144) 的情况 下,传输各种上行控制信息及探测信号(SRS )时所对应的信道编码率 CCR 的数值。 表 2是在下行分量载波为 2个且分配资源数为 5时, 在三种典 型的非周期的信道状态信息 CSI 比特长度的情况下, 传输各种上行控制 信息及探测信号 (SRS) 时所对应的信道编码率 CCR的数值。 表 3是在下 行分量载波为 2个且分配资源数为 6时, 在三种典型的非周期的信道状 态信息 CSI比特长度的情况下,传输各种上行控制信息及探测信号(SRS) 时所对应的信道编码率 CCR的数值。
由表 1可知,如下行分量载波 CC的数量为 2个时,若仍分配 4个 RB, 则在非周期的 CSI负载 =136和 144时, 在传输 CQI+A/N+RI、 或者传输 CQI+A/N+SRS+RI时, 编码率 CCR超出了预定范围; 在非周期的 CSI负载 =100时,在传输 CQI+A/N+SRS+RI时,编码率 CCR超出了预定范围。这样, 无法保证基站正确接收该上行控制信息 UCI。
表 1
Figure imgf000010_0001
表 2
Figure imgf000011_0002
Figure imgf000011_0001
Figure imgf000011_0003
由上述表 2 可知, 若 RB=5, 则只有在非周期的 CSI 负载 =136 和 CP=144、 并且传输 CQI+A/N+SRS+RI的情况下, 信道编码率 CCR超出了预 定范围, 但考虑到传输 CQI+A/N+SRS+RI的情况比较少出现, 因此, RB=5 视为合理的数值。
由上述表 3可知, 若 RB=6, 则信道编码率 CCR均在预定的范围内。 由上述可知, 在确定分配的资源数时, 既考虑使信道编码率 CCR在 合理的范围, 又要考虑使得资源数尽量小, 以减轻对其他资源传输的影 响。 经验证, 在 2个 CC的情况下, 第二数值 L2最大为 5或 6为最优。
以上仅以 2个 CC的情况进行的说明, 对于大于 2个 CC的情况, 确 定第二数值 L2的方法与上述类似, 此外, 对于信道编码率的计算方法可 采用现有的算法, 此处不再赘述。
由上述实施例可知, 基站可根据需要用户设备报告非周期的信道状 态信息 CSI 所对应的相关下行分量载波的数量来分配资源, 使得资源分 配方式灵活, 并且支持多载波情况下的信道状态信息的传输, 解决了现 有技术中存在的问题。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分 歩骤是可以通过程序来指令相关的硬件完成, 所述的程序可以存储于一 计算机可读取存储介质中, 该程序在执行时, 可以包括上述实施例方法 中的全部或部分歩骤, 所述的存储介质可以包括: ROM、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种基站, 如下面的实施例 2所述。 由于该 基站解决问题的原理与上述基于基站的资源分配方法相似, 因此该基站 的实施可以参见方法的实施, 重复之处不再赘述。
图 2是本发明实施例 2的基站的结构示意图。 如图 2所示, 该基站 包括: 第一确定单元 201和资源分配单元 202; 其中,
第一确定单元 201,用于确定需要用户设备报告相关下行分量载波的 非周期的信道状态信息 CSI ; 资源分配单元 202, 用于根据相关下行分量 载波的数量为用户设备分配相应的资源。
图 3是图 2中资源分配单元的构成示意图。 如图 3所示, 资源分配 单元 202可包括第一资源分配单元 301和第二资源分配单元 302; 其中, 第一资源分配单元 301,用于在第一确定单元 201确定需要用户设备报告 一个下行分量载波的非周期的信道状态信息 CSI 时, 为用户设备分配的 资源数目最大为预设的第一数值 L1 ;
第二资源分配单元 302,用于在第一确定单元 201确定需要用户设备 报告一个以上下行分量载波的非周期的信道状态信息 CSI 时, 为用户设 备分配的资源数目最大为预设的第二数值 L2;
其中,第二数值 L2大于第一数值 Ll,并且根据信道编码率 CCR来确 定第一数值 L1和第二数值 L2。
在本实施例中, 确定第一数值 L1和第二数值 L2的方式如实施例 1 所述, 此处不再赘述。
由上述实施例可知, 基站可根据需要用户设备报告非周期的 CSI信 息所对应的相关下行分量载波的数量来分配资源, 使得资源分配方式灵 活, 并且支持多载波情况下信息的传输, 解决了现有技术中存在的问题。 图 4是本发明实施例 4的信道状态信息的传输方法流程图。 如图 4 所示, 该方法包括:
歩骤 401, 基站生成下行控制信息 DCI , 该下行控制信息 DCI包括指 示用户设备 UE是否报告相关下行分量载波 CC的非周期的信道状态信息 CSI、 以及在报告相关下行分量载波 CC的非周期的信道状态信息 CSI时 指示该相关下行分量载波 CC的索引号和数量的指示信息, 编码调制方式 (MCS)索引号和所使用的资源 RB; 其中, 所使用的资源 RB是该基站根据 该相关下行分量载波的数量为该用户设备分配的资源;
歩骤 402, 该基站向该用户设备 UE发送该下行控制信息 DCI , 以使 该用户设备 UE根据该下行控制信息 DCI中包含的指示信息、 编码调制方 式索引号和所使用的资源进行非周期的信道状态信息 CSI的发送。
在本实施例中, 在歩骤 401中, 基站在确定需要用户设备 UE报告相 关下行分量载波的非周期信道状态信息 CSI 时, 可根据传输模式和系统 需求生成该下行控制信息 DCI , 以指示用户设备 UE 上报信道状态信息 UCI ; 其中, 在生成的下行控制信息 DCI时, 基站根据相关下行分量载波 CC的数量为该用户设备 UE分配所使用的资源。此外, 可根据预先配置的 指示信息与下行分量载波 CC的集合的对应关系来选择相应的指示信息、 以及预设的编码调整方式索引号。
在本实施例中, 该生成下行控制信息 DCI的过程可采用现有的方法, 此处不再赘述。 此外, 对于基站根据相关下行分量载波 CC的数量为用户 设备 UE分配相应的资源的方法如实施例 1所述, 此处不再赘述。
在本实施例中, 在歩骤 101中生成的下行控制信息 DCI可在物理下 行控制信道 PDCCH中传输。 其中, 可采用 DCI format 0或者 DCI format 4中的比特信息来承载。
表 4是本发明实施例的 LTE-A系统中 DCI format 0的承载信息及长 度。 图 5是本发明实施例的 LTE-A系统中 DCI format 4的承载信息及长度。 表 4
Figure imgf000014_0001
其中, 可采用表 4或表 5中的 2比特的 "CQI请求"来承载上述指示 信息, 因此, 对应的状态可为 "00 "、 " 01 "、 " 10 "、 " 11 "。 可分别利用上 述四种状态指示是否报告非周期的信道状态信息 CSI , 以及在指示上报非 周期的信道状态信息 CSI时, 不同的下行分量载波的集合。
例如,在 2bit为" 00 "时,可指示不报告非周期的信道状态信息 CSI , 只在 PUSCH上传输上行数据。 在 2bit为 "01/10 " 时, 可指示报告非周 期的 CSI ,该下行分量载波 CC的集合中包含的下行分量载波 CC的数量为 1 ; 在 2bit为 " 11 "时, 可指示报告非周期的信道状态信息 CSI , 该下行 分量载波 CC的集合中包含的下行分量载波 CC的数量为 1个以上,如为 2 个 CC, 并且还指示各个分量载波 CC的索引号。这种对应关系可在基站侧 通过高层信令进行配置, 并储存该对应关系, 在生成下行控制信息时供 基站使用。 上述指示方式仅为本发明实施例, 还可根据具体情况来配置 上述指示信息。
在本实施例中, 若将该非周期的 CSI 包含在上行控制信息中通过 PUSCH向基站传输时,在 PUSCH上传输的包含非周期的 CSI的上行控制信 息 UCI可分为: 1 ) 该上行控制信息 UCI单独在 PUSCH上传输 (CQI-only PUSCH) , 即在传输该非周期的 CSI时不传输上行数据; 2 ) 该上行控制信 息 UCI与上行数据一起在 PUSCH上传输, 即在传输该非周期的 CSI时还 传输上行数据。 其中, 可根据该指示信息、 调制编码方式和使用的资源 数目的特定组合来判断采用哪一种方式来传输该上行控制信息, 这部分 内容将在实施例 5中详细描述。
在本实施例中,基站需要预先为该用户设备 UE配置多组相关下行分 量载波 CC的集合, 并将该集合与指示信息, 如 DCI format O/4中的 2bit 信息, 对应进行储存, 并将该对应关系也在用户设备 UE侧进行储存, 以 便用户设备 UE根据指示信息来判断是否发送非周期的 CSI以及在发送非 周期的 CSI时, 确定相关下行分量载波 CC的数量和索引号 (IndeX)。
这样,在本实施例中,在基站为需要报告非周期的信道状态信息 CSI 的用户设备 UE生成 DCI之前, 该方法还包括:
该基站为该用户设备 UE配置多组相关下行分量载波 CC的集合; 将 该指示信息与该多组相关下行分量载波 CC的集合对应储存;
并且该基站在生成该下行控制信息 DCI 时, 根据该相关下行分量载 波 CC的索引号和数量选择相应的指示信息。
例如, 以该非周期的信道状态信息 CSI包含在上行控制信息 UCI 中 传输为例进行说明。 表 6和表 7分别是本发明实施例的基站通过高层信 令配置的指示信息与多组相关下行分量载波 CC的集合对应关系表。 但表 6和表 7仅为本发明实施例, 但本发明不限于上述对应关系, 基站可根据 实际情况进行配置。
表 6
Figure imgf000016_0001
由上述可知, 若基站配置了如表 7所示的对应关系表, 并且在用户 设备侧也储存该对应关系表。 例如, 当基站获知需要用户设备 UE报告所 有系统配置的下行分量载波 CC的信道状态信息 CSI, 且该信道状态信息 CSI包含在上行控制信息 UCI传输时,该基站可通过表 7可知对应的指示 信息为 "11", 将 "11"通过 DCI中的 "CQI请求"承载。 这样, 当用户 设备 UE接收到 DCI时, 可从 DCI中读取该指示信息 "11", 并通过查表 7 可知, 报告包含所有系统配置的下行分量载波的非周期的信道状态信息 CSI的上行控制信息 UCI。
在本发明实施例中, 在该相关下行分量载波 CC的集合中, 在该相关 下行分量载波 CC的数量为一个时,该相关下行分量载波 CC可以为承载上 行控制信息 UCI 的 PUSCH 的上行分量载波 CC通过系统消息块 (SIB-2: System Information Block-2) 配置的成对下行分量载波 CC, 如表 6和表 7中 " 01"对应的情况; 此外, 该相关下行分量载波 CC也可以不是与承载 该非周期 CSI的 PUSCH的上行分量载波 CC通过系统信息 (SIB-2) 链接 所对应的下行分量载波 CC, 如表 6中 "10"对应的情况。
例如, 上行分量载波 (UL CC) 配置有 UL CC #1、 UL CC #2; 下行分 量载波 CC配置有 DL CC #1、 DL CC #2和 DL CC#3; 其中, UL CC #1与 DL CC#1 是系统信息 (SIB-2) 链接 (link) 的关系, UL CC #2 与 DL CC#3 是系统信息(SIB-2)链接(link)的关系。但 DL CC#2没有系统信息(SIB-2) 链接 (link) 的 UL CCo DL CC#2的上行控制信息 UCI可以通过 UL CC #1 或者 UL CC#2去传输。 例如, DCI format 0是调度 UL CC#1上的 PUSCH, 则当该 DCI format 0中指示信息为 '10'时,表示将在 UL CC#1上的 PUSCH 发送 DL CC#2的非周期的 CSI。
在本实施例中, 在该相关下行分量载波 CC的集合中, 该相关下行分 量载波 CC的数量为一个以上时, 该相关下行分量载波 CC可以是配置的 或激活的一个以上的下行分量载波 CC, 如表 7中的 "11"对应的情况, 也可以为其他的下行分量载波 CC, 如表 6中的 "11"和表 7中的 "10" 对应的情况。
由上述实施例可知, 基站可根据需要用户设备报告非周期的信道状 态信息 CSI所对应的相关下行分量载波的数量来分配资源, 使得资源分 配方式灵活, 并且支持多载波情况下的上行控制信息的传输, 解决了现 有技术中存在的问题。 并且在用户设备利用基站根据下行分量载波的数 量分配的资源传输包含该非周期的 CSI 的上行控制信息时, 可保证基站 接收信息的正确率, 且减小对数据传输的调度限制。
本发明实施例还提供了一种基站, 如下面的实施例 4所述。 由于该 基站解决问题的原理与上述实施例 3 的基于基站的上行控制信息的传输 方法相似, 因此该基站的实施可以参见方法的实施, 重复之处不再赘述。
图 5是本发明实施例 4的基站的结构示意图。 如图 4所示, 该基站 包括信息生成单元 501和第一信息发送单元 502; 其中,
信息生成单元 501, 用于生成下行控制信息 DCI , 该下行控制信息包 括指示用户设备 UE是否报告相关下行分量载波 CC的非周期的信道状态 信息 CSI、以及在报告相关下行分量载波 CC的非周期的信道状态信息 CSI 时指示相关下行分量载波 CC的索引号和数量的指示信息, 编码调制方式 (MCS)索引号和所使用的资源 RB; 其中, 所使用的资源 RB是基站根据相 关下行分量载波 CC的数量为用户设备 UE分配的资源。
第一信息发送单元 502,用于向用户设备 UE发送下行控制信息 DCI , 以使该用户设备 UE根据下行控制信息 DCI中包含的指示信息、 编码调制 方式索引号和所使用的资源进行非周期的信道状态信息 CSI的发送。
在本实施例中, 信息生成单元 501在确定需要用户设备报告相关下 行分量载波 CC的非周期的信道状态信息 CSI时, 可根据传输模式和系统 需求生成该下行控制信息 DCI , 以指示用户设备 UE上报非周期的 CSI; 其中, 在生成的下行控制信息 DCI 中, 所使用的资源是基站根据相关下 行分量载波 CC的数量为该用户设备 UE分配的资源。
在本实施例中, 该下行控制信息 DCI可采用 DCI在 PUCCH中传输。 其中, 该指示信息可采用 DCI format 0或 4中的 2bit "CQI请求"来承 载, 具体如实施例 3所述, 此处不再赘述。
在本实施例中,基站还包括资源分配单元 503,用于根据相关下行分 量载波 CC的数量为用户设备 UE分配相应的资源。 具体地, 该资源分配 单元 503 可包括第一资源分配单元和第二资源分配单元 (图中未示出, 类似图 3中的 301和 302 ); 其中, 第一资源分配单元用于在需要用户设 备报告一个下行分量载波的非周期的信道状态信息 CSI 时, 为用户设备 UE分配的资源数目最大为预设的第一数值 L1 ; 第二资源分配单元, 用于 在需要用户设备 UE报告一个以上下行分量载波的非周期的信道状态信息 CSI时,为用户设备 UE分配的资源数目最大为预设的第二数值 L2;其中, 第二数值 L2大于第一数值 L1 ,并且根据信道编码率 CCR来确定第一数值 L1和第二数值 L2。其中, L1和 L2的确定的具体实例如实施例 1中所述, 此处不再赘述。
此外, 如图 5所示, 该基站还可包括配置单元 505和存储单元 506; 其中, 配置单元 505用于为用户设备 UE配置多组相关下行分量载波 CC 的集合; 其中, 基站可通过高层信令, 如 RRC进行配置; 存储单元 506 用于将指示信息与多组相关下行分量载波 CC的集合对应储存, 如表 6和 表 7所示。
这样, 信息生成单元 501在生成下行控制信息 DCI时, 根据该相关 下行分量载波 CC的索引号和数量选择相应的指示信息。
由上述实施例可知, 信息生成单元 501在确定需要用户设备报告相 关下行分量载波 CC的非周期的信道状态信息时, 可根据实际情况选择相 应的指示信息、编码调制方式和所使用的资源生成下行控制信息 DCI , 然 后将上述信息下发到用户设备。 由于基站可根据下行分量载波的数量来 分配资源, 使得资源分配方式灵活, 并且支持多载波情况下的上行控制 信息的传输。
图 6是本发明实施例 5的上行控制信息的传输方法流程图。 如图 6 所示, 该方法包括:
歩骤 601, 用户设备 UE接收基站发送的下行控制信息 DCI , 该下行 控制信息 DCI包括指示该用户设备 UE是否报告相关下行分量载波 CC的 非周期的信道状态信息 CSI、 以及在报告相关下行分量载波 CC的非周期 的信道状态信息 CSI时, 指示该相关下行分量载波 CC的索引号和数量的 指示信息, 编码调制方式 (MCS)索引号和所使用的资源 RB; 其中, 所使用 的资源是该基站根据该相关下行分量载波 CC的数量为该用户设备 UE分 配的资源;
其中, 基站可通过 PDCCH下发该下行控制信息 DCI , 该用户设备 UE 可读取该下行控制信息 DCI中的指示信息, 编码调制方式 (MCS)索引号和 息、编码调制方式索引号和所使用的资源进行非周期的信道状态信息 CSI 的发送;
其中,用户设备 UE通过上行控制信息 UCI来报告该非周期的信道状 态信息 CSI ,该上行控制信息 UCI通过物理上行共享信道 PUSCH向基站传 输。在 PUSCH上传输的上行控制信息 UCI可分为: 1 )该上行控制信息 UCI 单独在 PUSCH上传输 (CQI-only PUSCH), 即在发送非周期的 CSI时不发 送上行数据; 2 ) 该上行控制信息 UCI与上行数据一起在 PUSCH上传输, 即在发送非周期的 CSI 时还发送上行数据。 其中, 可根据该指示信息、 调制编码方式和使用的资源数目的特定组合来判断采用哪一种方式来传 输该上行控制信息 UCI, 以下对其过程进行详细说明。
下面以该信道状态信息 CSI包含在上行控制信息 UCI中通过 PUSCH 向基站传输为例进行说明。 此外, ACK/NACK信息可与该非周期的信道状 态信息 CSI—起通过上行控制信息 UCI向基站传输, 该 ACK/NACK信息是 否与该非周期的 CSI—起发送与现有技术类似, 此处不再赘述。
图 7是本发明实施例 5中歩骤 602的实现方法流程图。如图 7所示, 用户设备 UE根据该下行控制信息 DCI中包含的指示信息、 编码调制方式 索引号和所使用的资源进行非周期的 CSI的发送, 可采用如下方式: 歩骤 701, 用户设备 UE根据接收到的下行控制信息 DCI中的指示信 息判断是否需要报告相关下行分量载波 CC的非周期的信道状态信息 CSI; 若判断结果为是, 则执行歩骤 702, 若判断结果为否, 则执行歩骤 705; 其中, 该指示信息可由 DCI format 0或 DCI format 4中的 2比特 的 "CQI请求"承载;
该用户设备 UE可根据该指示信息、 以及预存的指示信息和下行分量 载波的集合的对应关系来确定是否报告相关下行分量载波 CC的非周期的 信道状态信息 CSI;
例如, 根据表 6或表 7的对应关系, 若该 2bit信息为 "00"时, 该 用户设备 UE可确定不需要报告非周期的信道状态信息 CSI; 若该下行控 制信息中, 2比特指示信息为 " 11/01/10" 时, 该用户设备 UE可确定需 要报告非周期的信道状态信息 CSI , 并且根据表 6或表 7可知相关的下 行分量载波 CC的数量和索引号。 歩骤 702,在歩骤 701中,若判断结果为需要报告非周期的信道状态 信息 CSI , 则该用户设备 UE根据该指示信息、 以及预存的指示信息与下 行分量载波集合的对应关系确定该相关下行分量载波的索引号和数量; 例如, 可根据表 6或表 7的对应关系和具体的指示信息来定, 例如, 如表 6所示, 若可确定指示信息为 "01 ", 则可知发送包含 1个下行 CC 的非周期的 CSI的上行控制信息 UCI , 该下行 CC的索引号为 1。
歩骤 703,根据确定的该相关下行分量载波的数量、 以及对应的编码 调制方式索引号和所使用的资源判断是否仅发送该包含非周期的 CSI 的 上行控制信息 UCI; 若判断结果为仅发送该上行控制信息 UCI , 则执行歩 骤 704, 否则执行歩骤 706;
其中, 具体的判断过程如图 8所示在下面详细描述。
歩骤 704, 在歩骤 703中, 若判断结果为是, 该用户设备 UE在预定 时间、 在基站为该用户设备 UE分配的资源上通过 PUSCH发送该包含非周 期的 CSI的上行控制信息 UCI , 不同时发送上行数据;
其中, 用户设备 UE在基站为该用户设备 UE分配的该所使用的资源 上发送该包含非周期的 CSI的 UCI , 该 UCI中可能还包含 ACK/NACK信息 与该非周期的 CSI—起发送。
歩骤 705,在歩骤 701中,若判断结果为否,则该用户设备 UE在 PUSCH 上仅传输上行数据。
歩骤 706, 在歩骤 703中, 若判断结果为否, 则用户设备 UE在该基 站为该用户设备分配的资源上发送该包含非周期的 CSI 的上行控制信息 UCI和上行数据;
其中, 在发送该包含非周期的 CSI的上行控制信息 UCI和上行数据 时, 该包含非周期的 CSI 的上行控制信息 UCI可通过复用的方式与上行 数据一起通过 PUSCH向基站发送, 即发送该非周期的 CSI 的上行控制信 息使用了该上行数据的部分资源, 而这部分资源不需要额外通过信令指 示, 可以是该用户设备 UE与基站预先约定好在这种情况下使用的资源。
图 8是本发明实施例 5中歩骤 703的实现方法流程图。如图 8所示, 包括以下歩骤:
歩骤 801,判断该相关下行分量载波 CC的数量是为一个或一个以上; 若判断结果为一个, 则执行歩骤 802, 若判断结果为一个以上, 则执行歩 骤 805。
歩骤 802, 在该相关下行分量载波 CC为一个时, 进一歩判断调制编 码方式索引是否为第一预设值且使用的资源是否小于等于第一数值; 若 判断结果为是, 则执行歩骤 803; 否则执行歩骤 804;
其中,该调制编码方式索引 MCS=29,该使用的资源是否不大于 RB=4。 歩骤 803,在歩骤 802中判断结果为是, 则可确定仅发送包含该非周 期的信道控制信息 CSI的上行控制信息 UCI , 不发送上行数据。
歩骤 804,在歩骤 802中判断结果为否, 则可确定发送该包含非周期 的信道控制信息 CSI上行控制信息 UCI和上行数据。
歩骤 805, 在歩骤 801中判断结果为该下行分量载波 CC的数量为一 个以上时, 进一歩判断调制编码方式索引是否为第二预设值且使用的资 源是否小于等于第二数值; 若判断结果为是, 则执行歩骤 806; 否则执行 歩骤 805;
其中,该调制编码方式索引 MCS=29,该使用的资源是否不大于 RB=L; 其中, 该第二数值 L大于该第一数值, 优选可为 5或 6。
歩骤 806,在歩骤 805中判断结果为是, 则可确定仅发送包含该非周 期的信道状态信息 CSI的上行控制信息 UCI , 不发送上行数据。
歩骤 807,在歩骤 805中判断结果为否, 则可确定发送包含该非周期 的信道状态信息 CSI上行控制信息 UCI和上行数据。
由上述实施例可知, 用户设备 UE可根据接收到的指示信息确定相 关下行分量载波 CC的数量, 从而根据该下行分量载波 CC的数量、 调制 编码方式和所使用的资源确定非周期的信道状态信息 CSI 的发送, 可将 该非周期的信道状态信息 CSI包含在上行控制信息 UCI中发送; 该方法 可适用于多载波情况下的上行控制信息的传输, 解决了现有技术中存在 的问题。
本发明实施例还提供了一种用户设备, 如下面的实施例 6所述。 由 于该用户设备解决问题的原理与上述基于用户设备的上行控制信息的传 输方法相似, 因此该用户设备的实施可以参见方法的实施, 重复之处不 再赘述。 图 9是本发明实施例 6的用户设备的构成示意图。 如图 9所示, 该 用户设备包括: 信息接收单元 901和第二信息发送单元 902; 其中,
信息接收单元 901,用于接收基站发送的下行控制信息, 该下行控制 信息包括指示用户设备是否报告相关下行分量载波的非周期的信道状态 信息、 以及在报告相关下行分量载波的非周期的信道状态信息时, 指示 相关下行分量载波的索引号和数量的指示信息, 编码调制方式索引号和 所使用的资源; 其中, 所使用的资源是基站根据相关下行分量载波的数 量为用户设备分配的资源;
第二信息发送单元 902, 用于根据下行控制信息中包含的指示信息、 编码调制方式索引号和所使用的资源进行非周期的信道状态信息的发 送。 图 10是图 9中第二信息发送单元的构成示意图。 如图 10所示, 第 二信息发送单元 902包括:
第一判断单元 1001, 用于根据指示信息判断是否需要报告相关下行 分量载波的非周期的信道状态信息;
载波确定单元 1002,用于在第一判断单元 1001的判断结果为需要报 告非周期的信道状态信息时, 根据指示信息、 以及预存的指示信息与下 行分量载波集合的对应关系确定相关下行分量载波的索引号和数量;
第二判断单元 1003,用于根据载波确定单元 1002确定的相关下行分 量载波的数量、 以及对应的编码调制方式索引号和所使用的资源判断是 否仅发送非周期的信道状态信息;
第三信息发送单元 1004,用于在第二判断单元 1003的判断结果为在 发送非周期的信道状态信息时不发送上行数据时, 在基站为用户设备分 配的所使用的资源上发送非周期的信道状态信息;
第四信息发送单元 1005,用于在第二判断单元 1003的判断结果是不 仅发送非周期的信道状态信息而且还发送上行数据时,则用户设备在基站 为用户设备分配的所使用的资源上发送非周期的信道状态信息和上行数据。
此外, 该用户设备 UE还可包括存储单元 (图中未示出), 用于储存 指示信息与下行分量载波集合的对应关系表, 供该用户设备 UE使用。
图 11是图 10中第二判断单元的构成示意图。 如图 11所示, 第二判 断单元 1003包括: 第三判断单元 1101, 用于判断相关下行分量载波的数量是为一个或 一个以上;
第四判断单元 1102,用于在第三判断单元 1101的判断结果为相关下 行分量载波的数量为一个时, 进一歩判断下行控制信息中包含的编码调 制方式索引号是否为预设索引号、 并且所使用的资源是否小于等于预设 的第一数值; 或者, 用于在第三判断单元 1101的判断结果为相关下行分 量载波的数量为一个以上时, 进一歩判断下行控制信息中包含的编码调 制方式索引号是否为预设索引号、 并且所使用的资源是否小于等于预设 的第二数值; 其中, 第二数值大于第一数值; 根据信道编码率来确定第 一数值和第二数值;
第一确定单元 1103, 用于在第四判断单元 1102的判断结果为是时, 确定在发送非周期的信道状态信息时不发送上行数据;
第二确定单元 1104, 用于在第四判断单元 1102的判断结果为否时, 确定在发送非周期的信道状态信息时还发送上行数据。
其中, 该用户设备 UE可通过上行控制信息 UCI来报告该非周期的信 道状态信息 CSI ,该上行控制信息 UCI通过物理上行共享信道 PUSCH向基 站传输。 该第二信息发送单元 902 中各个功能单元的实现方法可采用实 施例 5中附图 7和 8所述的方式, 此处不再赘述。
由上述实施例可知, 用户设备 UE可根据接收到的指示信息确定相 关下行分量载波 CC的数量, 从而根据该下行分量载波 CC的数量、 调制 编码方式和所使用的资源确定非周期的信道状态信息的发送; 该方法可 适用于多载波情况下的上行控制信息的传输, 保证基站接收上行控制信 息的正确率, 减小基站对数据传输的调度限制。
上述实施例适用于 LTE-A系统, 以下以通过上行控制信息 UCI来报 告该非周期的信道状态信息 CSI , 调制编码方式索引号 MCS=29; —个下 行分量载波 CC时使用的资源数, 即第一数值 L1小于等于 4RB, 2个下行 分量载波 CC时使用的资源数, 即第二数值 L2小于等于 5为例对本发明 实施例进行说明。
图 12是本发明实施例 7的基站侧的上行控制信息传输方法流程图。 如图 12所示, 该方法包括: 歩骤 1201, 基站为用户设备 UE配置多组相关下行分量载波 CC的集 合; 将该指示信息与该多组相关下行分量载波 CC的集合对应储存;
如表 6或表 7所示, 本发明实施例中以表 6为例进行说明。
歩骤 1202, 基站确定需要该用户设备 UE报告相关下行分量载波 CC 上的非周期的 CSI时, 如确定需要报告下行分量载波 1和 2上的非周期 的 CSI时, 该基站结合传输模式和系统要求生成相应的 DCI源比特, 其 生成过程可采用现有的技术, 此处不再赘述;
其中, 该 DCI中可包括指示信息 " 11 ", 可采用 DCI format 0或 4 中的 CQI请求来承载, MCS=29, 资源数 L2=5。
歩骤 1203, 该基站对生成的该 DCI 源比特添加循环冗余校验码 ( CRC: Cyclic Redundancy Check )。
歩骤 1204, 对添加 CRC的 DCI源比特进行调制编码和速率匹配。 歩骤 1205, 形成物理控制信道 PDCCH, 映射到相应的物理时频资 源上, 并通过 PDCCH向用户设备 UE发送。
图 13是本发明实施例 7的用户设备侧的上行控制信息传输方法流程 图。 首先用户设备 UE, 根据传输模式检测可能的 DCI, 然后根据检测到 的 DCI确定是否发送包含非周期的 CSI的上行控制信息 UCI, 或者是否 仅发送包含非周期的 CSI的上行控制信息 UCI, 如图 13所示, 该方法具 体包括:
歩骤 1301, 用户设备 UE在相应的时频资源上接收 PDCCH,接收该 下行控制信息 DCI。
歩骤 1302, 对该下行控制信息 DCI进行解速率匹配, 解调译码。 歩骤 1303, 判断 CRC校验是正确还是错误; 若判断结果为正确, 则 执行歩骤 1304, 否则执行歩骤 1308。
歩骤 1304, 在歩骤 1303中判断结果为 CRC校验正确, 则进一歩根 据读取的该下行控制信息 DCI中的指示信息、 MSC索引号和所使用的资 源判断是否发送包含非周期的信道状态信息 CSI的上行控制信息 UCI; 若判断结果为发送, 则执行歩骤 1305, 否则执行歩骤 1310;
其中, 由于 " 11 "指示发送索引号为 1和 2的下行分量载波的包含 非周期的信道状态信息 CSI的上行控制信息 UCI。 歩骤 1305,在歩骤 1304中若判断结果为正确, 则进一歩确定下行分 量载波 CC的数量;
由上述可知, 下行分量载波的数量为 2个。
歩骤 1306, 该用户设备 UE根据下行分量载波的数量 CC进一歩判断 其 MCS是否等于 29,且使用的资源 RB是否小于等于 5;若判断结果为是, 则执行歩骤 1306, 否则执行歩骤 1311 ;
在本实施例中, L2=5,MCS的索引号为 29, 则判断结果为是。
歩骤 1307, 在歩骤 1305中判断结果为是, 则该用户设备 UE在预定 时间在基站为该用户设备 UE分配的该所使用的资源上发送包含非周期的 CSI的上行控制信息 UCI , 且仅发送该包含非周期的 CSI的上行控制信息 UCI , 不发送上行数据。
歩骤 1308, 在歩骤 1303中, 若 CRC校验错误, 则进一歩确定是否 超过最大盲检次数, 若确定结果为是, 则执行歩骤 1309; 否则回到歩骤 1301。
歩骤 1309, 在歩骤 1308中, 若判断结果为是, 则丢弃该 PDCCH, 过程结束。
歩骤 1310, 在歩骤 1304中, 若判断结果为否, 则仅通过 PUSCH发送 上行数据, 然后过程结束 (未示出)。
歩骤 1311, 在歩骤 1306中, 若判断结果为否, 则通过 PUSCH发送上 行数据和包含该非周期的信道状态信息 CSI的上行控制信息 UCI ;
其中, 该包含非周期的 CSI的上行控制信息 UCI可通过复用的方式 与上行数据一起通过 PUSCH向基站发送, 即发送该非周期的 CSI的上行 控制信息使用了该上行数据的部分资源, 而这部分资源不需要额外通过 信令指示, 可以是该用户设备 UE与基站预先约定好在这种情况下使用的 资源。
以上实施例是以多个下行分量载波为例进行说明。 若下行分量载波 为 1个, 则在歩骤 1306中, 判断的条件为是否满足 MCS=29且 RB小于等 于 Ll=4, 其他过程与附图 13类似, 此处不再赘述。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行所 述程序时, 该程序使得计算机在该基站中执行如实施例 1的资源分配方法。 本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中 该计算机可读程序使得计算机在基站中执行如实施例 1的资源分配方法。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行该 程序时, 该程序使得计算机在该基站中执行如实施例 3或 7的信道状态 信息的传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中 该计算机可读程序使得计算机在基站中执行如实施例 3和 7的信道状态 信息的传输方法。
本发明实施例还提供一种计算机可读程序, 其中当在用户设备中执 行所述程序时, 该程序使得计算机在该用户设备中执行如实施例 4或 7 的信道状态信息的传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中 该计算机可读程序使得计算机在用户设备中执行如实施例 4或 7的信道 状态信息的传输方法。
由上述实施例可知, 基站可根据下行分量载波的数量为用户设备分 配相应的资源, 使得资源分配灵活; 可支持多载波的包含非周期信道状 态信息的上行控制信息的传输, 保证基站接收该上行控制信息的正确率, 减小基站对数据传输的调度限制。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件 实现。 本发明涉及这样的计算机可读程序, 当该程序被逻辑部件所执行 时, 能够使该逻辑部件实现上文所述的装置或构成部件, 或使该逻辑部 件实现上文所述的各种方法或歩骤。 本发明还涉及用于存储以上程序的 存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器等。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员 应该清楚, 这些描述都是示例性的, 并不是对本发明保护范围的限制。 本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和 修改, 这些变型和修改也在本发明的范围内。

Claims

1、 一种资源分配方法, 所述方法包括:
基站确定需要用户设备报告相关下行分量载波的非周期的信道状态 信息;
所述基站根据所述相关下行分量载波的数量为所述用户设备分配相 应的资源。
2、 根据权利要求 1所述的方法, 其中, 所述基站根据所述相关下行 分量载波的数量为所述用户设备分配相应的资源, 包括:
若所述基站确定需要用户设备报告一个下行分量载波的非周期的信 道状态信息, 则所述基站为所述用户设备分配的资源数目最大为预设的 第一数值;
若所述基站确定需要用户设备报告一个以上下行分量载波的非周期 的信道状态信息, 则所述基站为所述用户设备分配的资源数目最大为预 设的第二数值;
其中, 所述第二数值大于第一数值, 并且根据信道编码率来确定所 述第一数值和第二数值。
3、 根据权利要求 2所述的方法, 其中, 所述第一数值为 4;
在所述相关下行分量载波的数量为 2时, 所述第二数值为 5或 6。
4、 一种基站, 所述基站包括:
第一确定单元, 所述第一确定单元用于确定需要用户设备报告相关 下行分量载波的非周期的信道状态信息;
资源分配单元, 所述资源分配单元用于根据所述相关下行分量载波 的数量为所述用户设备分配相应的资源。
5、 根据权利要求 4所述的基站, 其中, 所述资源分配单元包括: 第一资源分配单元, 所述第一资源分配单元用于在所述第一确定单 元确定需要用户设备报告一个下行分量载波的非周期的信道状态信息 时, 为所述用户设备分配的资源数目最大为预设的第一数值;
第二资源分配单元, 所述第二资源分配单元用于在所述第一确定单 元确定需要用户设备报告一个以上下行分量载波的非周期的信道状态信 息时, 为所述用户设备分配的资源数目最大为预设的第二数值; 其中, 所述第二数值大于第一数值, 并且根据信道编码率来确定所 述第一数值和第二数值。
6、 一种信道状态信息的传输方法, 所述方法包括:
基站生成下行控制信息, 所述下行控制信息包括指示用户设备是否 报告相关下行分量载波的非周期的信道状态信息、 以及在报告相关下行 分量载波的非周期的信道状态信息时指示所述相关下行分量载波的索引 号和数量的指示信息, 编码调制方式索引号和所使用的资源; 其中, 所 使用的资源是所述基站根据所述相关下行分量载波的数量为所述用户设 备分配的资源;
所述基站向所述用户设备发送所述下行控制信息, 以使所述用户设 备根据所述下行控制信息中包含的指示信息、 编码调制方式索引号和所 使用的资源进行非周期的信道状态信息的发送。
7、 根据权利要求 6所述的方法, 其中, 所述基站根据所述相关下行 分量载波的数量为所述用户设备分配资源, 包括:
若所述基站确定需要用户设备报告一个下行分量载波的非周期的信 道状态信息, 则所述基站为所述用户设备分配的资源数目最大为预设的 第一数值;
若所述基站确定需要用户设备报告一个以上下行分量载波的非周期 的信道状态信息, 则所述基站为所述用户设备分配的资源数目最大为预 设的第二数值;
其中, 所述第二数值大于第一数值, 并且根据信道编码率来确定所 述第一数值和第二数值。
8、 根据权利要求 7所述的方法, 其中, 所述第一数值为 4;
在所述相关下行分量载波的数量为 2时, 所述第二数值为 5或 6。
9、 根据权利要求 6所述的方法, 其中, 所述方法还包括: 所述基站为所述用户设备配置多组相关下行分量载波的集合; 将所述指示信息与所述多组相关下行分量载波的集合对应储存; 所述基站在生成所述下行控制信息时, 根据所述相关下行分量载波 的索引号和数量选择相应的指示信息。
10、 一种信道状态信息的传输方法, 所述方法包括: 用户设备接收基站发送的下行控制信息, 所述下行控制信息包括指 示所述用户设备是否报告相关下行分量载波的非周期的信道状态信息、 以及在报告相关下行分量载波的非周期的信道状态信息时, 指示所述相 关下行分量载波的索引号和数量的指示信息, 编码调制方式索引号和所 使用的资源; 其中, 所使用的资源是所述基站根据所述相关下行分量载 波的数量为所述用户设备分配的资源;
所述用户设备根据所述下行控制信息中包含的指示信息、 编码调制 方式索引号和所使用的资源进行非周期的信道状态信息的发送。
11、 根据权利要求 10所述的方法, 其中, 所述用户设备根据所述下 行控制信息中包含的指示信息、 编码调制方式索引号和所使用的资源进 行非周期的信道状态信息的发送, 包括:
所述用户设备根据所述指示信息判断是否需要报告相关下行分量载 波的非周期的信道状态信息;
若判断结果为需要报告非周期的信道状态信息, 则所述用户设备根 据所述指示信息、 以及预存的指示信息与下行分量载波集合的对应关系 确定所述相关下行分量载波的索引号和数量;
根据确定的所述相关下行分量载波的数量、 以及对应的编码调制方 式索引号和所使用的资源判断在发送所述非周期的信道状态信息时是否 发送上行数据;
若判断结果为在发送所述非周期的信道状态信息时不发送上行数 据, 则所述用户设备在所述基站为所述用户设备分配的所述所使用的资 源上发送所述非周期的信道状态信息;
若判断结果是在发送所述非周期的信道状态信息时还发送上行数 据, 则所述用户设备在所述基站为所述用户设备分配的资源上发送所述 非周期的信道状态信息和上行数据。
12、 根据权利要求 11所述的方法, 其中, 所述根据确定的所述相关 下行分量载波的数量、 以及对应的编码调制方式索引号和所使用的资源 判断在发送所述非周期的信道状态信息时是否发送上行数据, 包括: 判断所述相关下行分量载波的数量是为一个或一个以上;
若判断结果为所述相关下行分量载波的数量为一个, 则所述用户设 备进一歩判断所述下行控制信息中包含的编码调制方式索引号是否为预 设索引号、 并且所使用的资源是否小于等于预设的第一数值; 其中, 根 据信道编码率来确定所述第一数值;
若判断结果为是, 则确定在发送所述非周期的信道状态信息时不发 送上行数据;
若判断结果为否, 则确定在发送所述非周期的信道状态信息时还发送 上行数据。
13、 根据权利要求 12所述的方法, 其中, 若判断结果为所述相关下 行分量载波的数量为一个以上, 则所述方法还包括:
所述用户设备进一歩判断所述下行控制信息中包含的编码调制方式 索引号是否为预设索引号、 并且所使用的资源是否小于等于预设的第二 数值; 其中, 所述第二数值大于所述第一数值; 根据信道编码率来确定 所述第二数值;
若所述判断结果为是, 则确定在发送所述非周期的信道状态信息时 不发送上行数据;
若判断结果为否, 则确定在发送所述非周期的信道状态信息时还发送 上行数据。
14、 一种基站, 所述基站包括:
信息生成单元, 用于生成下行控制信息, 所述下行控制信息包括指 示用户设备是否报告相关下行分量载波的非周期的信道状态信息、 以及 在报告相关下行分量载波的非周期的信道状态信息时指示所述相关下行 分量载波的索引号和数量的指示信息, 编码调制方式索引号和所使用的 资源; 其中, 所使用的资源是所述基站根据所述相关下行分量载波的数 量为所述用户设备分配的资源;
第一信息发送单元, 所述第一信息发送单元用于向所述用户设备发 送所述下行控制信息, 以使所述用户设备根据所述下行控制信息中包含 的指示信息、 编码调制方式索引号和所使用的资源进行非周期的信道状 态信息的发送。
15、 一种用户设备, 所述用户设备包括:
信息接收单元, 所述信息接收单元用于接收基站发送的下行控制信 息, 所述下行控制信息包括指示所述用户设备是否报告相关下行分量载 波的非周期的信道状态信息、 以及在报告相关下行分量载波的非周期的 信道状态信息时, 指示所述相关下行分量载波的索引号和数量的指示信 息, 编码调制方式索引号和所使用的资源; 其中, 所使用的资源是所述 基站根据所述相关下行分量载波的数量为所述用户设备分配的资源; 第二信息发送单元, 所述第二信息发送单元用于根据所述下行控制 信息中包含的指示信息、 编码调制方式索引号和所使用的资源进行非周 期的信道状态信息的发送。
16、 一种计算机可读程序, 其中当在基站中执行所述程序时, 所述 程序使得计算机在所述基站中执行如权利要求 1至 3的任一项权利要求 所述的资源分配方法。
17、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读 程序使得计算机在基站中执行如权利要求 1至 3的任一项权利要求所述 资源分配方法。
18、 一种计算机可读程序, 其中当在基站中执行所述程序时, 所述 程序使得计算机在所述基站中执行如权利要求 7至 9的任一项权利要求 所述的信道状态信息的传输方法。
19、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读 程序使得计算机在基站中执行如权利要求 7至 9的任一项权利要求所述 信道状态信息的传输方法。
20、 一种计算机可读程序, 其中当在用户设备中执行所述程序时, 所述程序使得计算机在所述用户设备中执行如权利要求 10至 13的任一 项权利要求所述的信道状态信息的传输方法。
21、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读 程序使得计算机在用户设备中执行如权利要求 10至 13的任一项权利要 求所述信道状态信息的传输方法。
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US10965426B2 (en) 2015-02-06 2021-03-30 Lg Electronics Inc. Method for reporting channel state in wireless communication system and apparatus therefor

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US20170064737A1 (en) 2017-03-02
EP3422785B1 (en) 2020-03-11
US9510333B2 (en) 2016-11-29
JP5862678B2 (ja) 2016-02-16
KR101521034B1 (ko) 2015-05-15
TW201242402A (en) 2012-10-16
MX2013007300A (es) 2013-10-17
US9155074B2 (en) 2015-10-06
AU2010366219B2 (en) 2015-01-29
EP2658331A4 (en) 2016-11-23
KR20130116902A (ko) 2013-10-24
EP2658331B1 (en) 2018-09-19
CA2944691A1 (en) 2012-06-28
US20200163115A1 (en) 2020-05-21
BR112013016157A2 (pt) 2018-07-10
EP2658331A1 (en) 2013-10-30
JP2014505401A (ja) 2014-02-27
RU2629008C1 (ru) 2017-08-24
RU2600978C1 (ru) 2016-10-27
US20150365935A1 (en) 2015-12-17
CA2824653C (en) 2016-11-22
US20180132277A1 (en) 2018-05-10
US20130286970A1 (en) 2013-10-31
EP3422785A1 (en) 2019-01-02
RU2555365C2 (ru) 2015-07-10
TWI445430B (zh) 2014-07-11
CA2944691C (en) 2018-08-14
RU2013133826A (ru) 2015-01-27
CN103270803B (zh) 2016-06-08
CN103270803A (zh) 2013-08-28
AU2010366219A1 (en) 2013-07-18
CA2824653A1 (en) 2012-06-28

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