WO2014146288A1 - 信道质量指示的配置方法、调制编码方案配置方法和装置 - Google Patents

信道质量指示的配置方法、调制编码方案配置方法和装置 Download PDF

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Publication number
WO2014146288A1
WO2014146288A1 PCT/CN2013/073040 CN2013073040W WO2014146288A1 WO 2014146288 A1 WO2014146288 A1 WO 2014146288A1 CN 2013073040 W CN2013073040 W CN 2013073040W WO 2014146288 A1 WO2014146288 A1 WO 2014146288A1
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WO
WIPO (PCT)
Prior art keywords
modulation
sequence number
base station
cqi index
number table
Prior art date
Application number
PCT/CN2013/073040
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English (en)
French (fr)
Inventor
张磊
王轶
鲁艳玲
周华
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 CN201380074705.1A priority Critical patent/CN105191194B/zh
Priority to CN201910346272.XA priority patent/CN110224787B/zh
Priority to EP13878889.8A priority patent/EP2978153B8/en
Priority to MX2015013469A priority patent/MX2015013469A/es
Priority to KR1020187037763A priority patent/KR101962592B1/ko
Priority to KR1020157029553A priority patent/KR101935630B1/ko
Priority to BR112015023931A priority patent/BR112015023931A2/pt
Priority to CA2907153A priority patent/CA2907153A1/en
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to CN201910880503.5A priority patent/CN110492976B/zh
Priority to RU2015145101A priority patent/RU2633154C2/ru
Priority to JP2016503510A priority patent/JP6103129B2/ja
Priority to PCT/CN2013/073040 priority patent/WO2014146288A1/zh
Publication of WO2014146288A1 publication Critical patent/WO2014146288A1/zh
Priority to US14/861,557 priority patent/US10097330B2/en
Priority to US15/615,452 priority patent/US10284352B2/en
Priority to US16/215,077 priority patent/US10630454B2/en
Priority to US16/807,821 priority patent/US11258569B2/en

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Classifications

    • 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
    • H04L1/0015Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0016Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • 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
    • H04L1/0001Systems 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
    • 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
    • H04L1/0028Formatting
    • 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
    • H04W72/20Control 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for configuring a channel quality indicator (CQI), a method and apparatus for configuring a modulation and coding scheme.
  • CQI channel quality indicator
  • Background technique
  • Small cell is one of the hottest topics in the LTE-A (Long Term Evolution-Advanced) version 12 discussion.
  • the channel of the base station that reaches the UE (User Equipment) in the small cell includes the line-of-sight, and the interference in the transmission is small, and the transmission signal and noise are relatively high. .
  • a good signal propagation environment can ensure the correct transmission of higher order modulation symbols, thereby effectively improving spectral efficiency, so the next version of LTE will support higher order constellation modulation, such as 256QAM modulation.
  • the LTE standard supports flexible code rate and modulation.
  • the UE calculates a corresponding PMI (Precoding Matrix Indicator) and RI (Rank Indication) information according to the channel estimation result, and according to the UE's own receiving and demodulating capability, it is a Wide Band or a Subband.
  • PMI Precoding Matrix Indicator
  • RI Rank Indication
  • Subband Select an appropriate CQI index (Channel Quality Indicator Index), and then feed the above information back to the base station in the manner agreed in the LTE standard.
  • LTE supports a total of 16 CQI indexes, as shown in Table 1 (Table 1 is Table 7.2.3-1 of the 3GPP standard TS36.213).
  • CQI index 0 is used to indicate 'out of range'
  • the remaining 15 CQI indexes correspond to a coding modulation scheme, that is, a modulation scheme and a code rate of a channel coding.
  • the UE feeds back the calculated CQI index to the base station by using the uplink transmission.
  • the CQI index of the Wide Band is carried by 4-bit information in absolute transmission.
  • CQI information (including PMI, RI, and CQI index) may be shared by Physical Uplink Control Channel (PUCCH) or physical uplink shared channel (PUCCH)
  • the PUSCH Physical Uplink Shared Channel
  • Table 1 4-bit CQI Table (4-bit CQI Table)
  • the base station After obtaining the CQI information fed back by the UE, the base station performs scheduling and configuration on the UE according to the actual scheduling and load conditions and referring to the feedback information of the UE.
  • the base station through the downlink control channel (PDCCH, Physical Downlink Control Channel), indicates the time-frequency resource where the downlink data transmitted by the UE is located and the code modulation scheme used for the transmission. Or the base station may use the downlink control channel to indicate which code-frequency modulation scheme the UE should use for the uplink data transmission.
  • the coded modulation scheme is indicated by 5-bit information ( ICS ).
  • PDCCH Format 3A the PDCCH Format is dedicated to the power control indication of the uplink control channel
  • all other PDCCH formats contain one or two I MCS information.
  • the number of I MCS information is related to the number of transport blocks (TBs) in the transmission. There is at least one TB in one transmission and at most two TBs.
  • the UE After receiving the I MCS information, the UE obtains the I TBS sequence number and modulation mode by looking up the table. If the received I MCS is for downlink transmission demodulation decoding, then look up Table 2 (which is Table 7.1.7.1-1 of the 3GPP standard TS 36.213). If the received I MCS is used to indicate uplink transmission code modulation, then look up Table 3 (which is Table 8.6.1-1 in the 3GPP standard TS 36.213). Table 2: Modulation and TBS Sequence Number Table for PDSCH
  • Table 3 Modulation, TBS Index, and Redundancy Version Table for PUSCH
  • the UE can obtain the information bits of the transport block according to the size of the I TBS and the transmission resource (the number of resource blocks (RB)) by querying the TBS table (Transport Block Size table). Size, indirectly obtained the code rate.
  • TBS table Transport Block Size table. Size, indirectly obtained the code rate.
  • Table 4 gives only TBS tables corresponding to 1 to 10 RBs (from Table 7.1.7.2.1 in 3GPP standard TS 36.213). Where W PRB is the number of RBs.
  • Table 4 TBS Table (size 27x 110)
  • CQI index and I MCS are very important indications in downlink transmission on LTE systems.
  • the CQI index uses 4-bit information bearer.
  • the I MCS is carried by 5-bit information, and there are 32 cases that can be indicated at most in the uplink or downlink.
  • there is a corresponding code modulation scheme If a new modulation scheme is added, such as 256QAM, both CQI index and I MCS must be increased by 1 bit, otherwise the encoding modulation scheme using 256QAM modulation cannot be indicated in the existing manner.
  • An object of the embodiments of the present invention is to provide a channel quality indication (CQI) configuration method, a modulation coding scheme configuration method, and a device, so as to increase the CQI index and the number of I MCS bits when adding a new modulation scheme.
  • CQI channel quality indication
  • a method for configuring a channel quality indicator includes: The base station (eNB) configures a CQI index table for the UE by using a channel quality indication index (CQI index) table indication information, so that the UE determines the configured CQI index table according to the indication information, and uses the configured CQI index table according to the calculation.
  • Precoding matrix indication (PMI) and rank indication (RI) calculation CQI index ⁇ is provided, where the method includes:
  • the UE calculates PMI and RI according to the channel estimation result
  • the UE calculates a CQI index according to the PMI and the RI by using a configured CQI index table.
  • a method for configuring a modulation and coding scheme includes:
  • the eNB configures, by using a modulation and transport block size (TBS) sequence number table, a modulation and transport block size (TBS) sequence number table used by the UE for downlink transmission, and/or a modulation and TBS sequence number table to be used for uplink transmission, so that After receiving the indication information, the UE determines, according to the modulation and TBS sequence number table used by the downlink transmission, and/or the modulation and TBS sequence number table to be used by the uplink transmission, the code modulation scheme configured by the eNB.
  • TBS modulation and transport block size
  • TBS modulation and transport block size
  • a method for configuring a modulation and coding scheme includes:
  • the UE determines, according to the modulation and TBS sequence number table used by the downlink transmission, a coding modulation scheme configured by the base station.
  • a method for configuring a modulation and coding scheme includes:
  • the UE determines, according to the received modulation and TBS sequence number table indication information sent by the base station, a modulation and TBS sequence number table to be used for the uplink transmission;
  • the UE determines, according to the modulation and TBS sequence number table to be used for the uplink transmission, a coding modulation scheme configured by the base station.
  • a base station configured to configure a channel quality indicator for a UE,
  • the base station includes:
  • a configuration unit configured to configure a CQI index table for the UE by using the CQI index table indication information, so that the UE determines the configured CQI index table according to the indication information, and uses the configured CQI index table according to the calculated precoding matrix indication (PMI) ) and rank indication (RI) to calculate CQI inde X .
  • PMI precoding matrix indication
  • RI rank indication
  • a user equipment includes: a first calculating unit, which calculates a PMI and an RI according to a channel estimation result;
  • a determining unit configured to determine a configured CQI index table according to the CQI index table indication information sent by the received base station;
  • a second calculating unit that uses the CQI index table configured by the base station determined by the determining unit to calculate the CQI index according to the PMI and the RI.
  • a base station configured to configure a modulation and coding scheme for a UE, where the base station includes:
  • the coding modulation scheme configured by the eNB is determined according to the modulation and TBS sequence number table used by the downlink transmission and/or the modulation and TBS sequence number table to be used for the uplink transmission.
  • a user equipment includes: a first determining unit, configured to determine, according to the received modulation and TBS sequence number table indication information sent by the base station, the downlink transmission is used. Modulation and TBS serial number table;
  • a second determining unit which determines a coded modulation scheme configured by the base station according to the modulation and TBS sequence number table used by the downlink transmission.
  • a user equipment includes: a first determining unit, which determines, according to the received modulation and TBS sequence number table indication information sent by the base station, that the uplink transmission needs to be used. Modulation and TBS serial number table;
  • a second determining unit that determines a coded modulation scheme configured by the base station according to the modulation and TBS sequence number table to be used for the uplink transmission.
  • a communication system includes the user equipment of the seventh aspect and the base station of the sixth aspect, or the communication system includes the ninth aspect The user equipment and the base station according to the eighth aspect, or the communication system includes the tenth aspect The user equipment and the base station of the eighth aspect.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform the channel quality indicator according to the first aspect in the base station
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a channel quality indication (CQI) configuration method of the first aspect in a base station Or performing the configuration method of the modulation and coding scheme (MCS) described in the third aspect.
  • CQI channel quality indication
  • MCS modulation and coding scheme
  • a computer readable program wherein when the program is executed in a terminal device, the program causes the computer to perform the channel quality indication described in the second aspect in the terminal device ( A configuration method of CQI), or a configuration method of a modulation and coding scheme (MCS) according to the fourth aspect or the fifth aspect.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a channel quality indication (CQI) of the second aspect to be performed in a device in a computer A configuration method, or a configuration method of a modulation and coding scheme (MCS) according to the fourth aspect or the fifth aspect.
  • CQI channel quality indication
  • MCS modulation and coding scheme
  • the base station can configure different '4-bit CQI tables' and/or for different users while keeping the number of CQI index and I MCS bits unchanged. Modulation and TBS serial number table '. Therefore, the normal configuration of the LTE system can be ensured without increasing the number of CQI index and I MCS bits.
  • FIG. 1 is a flowchart of a method for configuring a channel quality indicator (CQI) according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of a composition of MAC signaling with only header information
  • FIG. 3 is a schematic diagram showing the composition of header information of MAC signaling with header information and content information
  • FIG. 4 is a schematic diagram showing the composition of content information of MAC signaling with header information and content information
  • FIG. 5 is a flowchart of a method for configuring channel quality indication (CQI) according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart corresponding to FIG. Schematic diagram of the composition of the eNB
  • FIG. 7 is a schematic diagram showing the composition of a UE corresponding to the method of FIG. 5;
  • FIG. 8 is a flowchart of a method for configuring a modulation and coding scheme (MCS) according to Embodiment 5 of the present invention
  • FIG. 9 is a schematic diagram showing a composition of header information of MAC signaling having header information and content information;
  • Figure 10 is a block diagram showing an embodiment of content information of MAC signaling having header information and content information
  • Figure 11 is a diagram showing the composition of another embodiment of content information of MAC signaling having header information and content information;
  • Figure 12 is a diagram showing the composition of another embodiment of content information of MAC signaling having header information and content information;
  • FIG 13 is a flow chart showing an embodiment of a method of configuring a modulation and coding scheme (MCS) according to Embodiment 6 of the present invention
  • FIG 14 is a flowchart showing another embodiment of a method of configuring a modulation and coding scheme (MCS) according to Embodiment 6 of the present invention.
  • MCS modulation and coding scheme
  • 15 is a schematic diagram showing the composition of an eNB corresponding to the method of FIG. 8;
  • 16 is a schematic diagram showing the composition of a UE corresponding to the method of FIG. 13;
  • 17 is a schematic diagram showing the composition of a UE corresponding to the method of FIG. detailed description
  • a new "CQI index table” (corresponding to Table 1) may be added to the standard, and the table may reduce the original three modulation modes (QPSK, The coded modulation levels of 16QAM and 64QAM) (expressed in the form of rows in a 4-bit CQI table), and the coding modulation level corresponding to 256QAM modulation is added, the total number is still 16.
  • the "4-bit CQI table” and the "modulation and TBS sequence number table” have two tables, one of which is the corresponding table in the existing standard; the other is specifically designed for UEs with high channel quality,
  • a table that can be used by a user who can support 256QAM modulation is simply referred to as a new form in the embodiment of the present invention.
  • the base station configures different CQI index tables and/or modulation and TBS sequence numbers for the UE to support higher order modulation formats while keeping the number of bits carrying the CQI index and the I MCS unchanged.
  • FIG. 1 is a flow chart of the method. Referring to Figure 1, the method includes:
  • Step 101 The base station (eNB) configures a CQI index table for the UE by using a channel quality indication index (CQI index) table indication information, so that the UE determines the configured CQI index table according to the indication information, and uses the configured CQI index table.
  • CQI index channel quality indication index
  • PMI precoding matrix indication
  • RI rank indication
  • the foregoing CQI index indication information may be carried by RRC signaling.
  • the RRC signaling may be carried by a common information element for configuring PUCCH transmission, which is called RRC common signaling; It is carried by a user-specific information element for configuring PUCCH transmission, which is called RRC dedicated signaling.
  • the eNB may add signaling for configuring the "CQI index table" in the common signaling of the RRC layer.
  • the "modulation and TBS sequence number table” is also implicitly configured, that is, the use of the old and new "CQI index table” and the old and new "modulation and TBS serial number table” are consistent.
  • the "CQI index table” configured by the RRC common signaling and the corresponding "modulation and TBS sequence number table” may be used only for downlink transmission, and may be used for both downlink transmission and uplink transmission.
  • the "CQI index table” configured by this method and the corresponding "modulation and TBS sequence number table” can be used only for PCell (primary cell), or both PCell and SCell (secondary cell).
  • the "CQI index table” and the “modulation and TBS sequence number table” configured by this method are cell-specific, because the RRC common signaling is adopted, that is, all users in the cell adopt the table.
  • NewCQITable-rl2 is the new signaling.
  • the signaling is optional (OPTIONAL). If the corresponding "ENUMERATED ⁇ true ⁇ ” is configured, the new “CQI index table” is used. If the signaling is not included in the information element PUCCH-ConfigCommon, the original "CQI” is configured. Index form”. Among them, the meaning of "Need OR” is the same as the existing standard, and will not be explained here.
  • the information element PUCCH-ConfigCommon may be included in the broadcast signaling and carried by the broadcast signaling.
  • the information element PUCCH-ConfigCommon can be included in the information ⁇ adioResourceConfigCommonSIB, and the information ⁇ adioResourceConfigCommonSIB is included in the information element SystemInformationBlockType2, so the letter for configuring the CQI index table
  • the information can be carried by broadcast signaling.
  • the information element PUCCH-ConfigCommon may also be included in the signaling for reconfiguration of the RRC connection, and is carried by the reconfigured signaling of the RRC connection.
  • the information element PUCCH-ConfigCommon can optionally be included in the information element adioResourceConfigCommon.
  • the information element adioResourceConfigCommon is included in the information element MobilityControlInfo.
  • the information element MobilityControlInfo is typically used for handover and is optionally included in the information element RRCConnection econfiguration-r8-IEs. Letter ;3 ⁇ 4 ⁇
  • RRCConnection econfiguration-r8 -IEs are included in the RRCConnectionReconfiguration, and the information element RRCConnectionReconfiguration is the reconfiguration for the RRC connection, so the information for configuring the CQI index table can be reconfigured by the RRC connection. Order bearing.
  • the configuration information can be configured through broadcast signaling or through reconfiguration signaling of the RRC connection.
  • the configurations of "CQI index table” and “modulation and TBS sequence number table” are the same for all UEs in a cell.
  • the "CQI index table” and “modulation and TBS sequence number table” can also be configured in accordance with the method of this embodiment.
  • the eNB may add corresponding signaling for configuring the "CQI index table” used by the SCell in the RRC layer common signaling.
  • the corresponding "modulation and TBS sequence number table” is also configured indirectly.
  • the "CQI index table” configured by this method and the corresponding "modulation and TBS sequence number table” can be used only for downlink transmission, and can also be used for both downlink transmission and uplink transmission.
  • the "CQI index table” and the “modulation and TBS sequence number table” configured by this method are cell-specific, that is, all users who use the cell as the SCell adopt The form.
  • the information element PUCCH-ConfigCommon may be included in the signaling for reconfiguration of the RRC connection, carried by the reconfigured signaling of the RRC connection; or may be included in the signaling for handover preparation, It is carried by the signaling used for handover preparation.
  • the information element PUCCH-ConfigCommon can be included in the information element adio esourceConfigCommonSCell-rlO as follows: --: ⁇ ;; : ⁇
  • the information element RadioResourceConfigCommonSCell-rlO may be included in the information element SCellToAddMod-rlO.
  • One or more information elements SCellToAddMod-rlO form an information element SCellToAddModList-rlO.
  • the information element SCellToAddModList-rlO can be included in the information element RRCConnection econfiguration-v 1020-IEs.
  • the RRCConnection econfiguration-v 1020-IEs is further wrapped in layers and finally included in the information element RRCConnectionReconfiguration.
  • Information RRC RRCConnectionReconfiguration is used for reconfiguration of the RRC connection.
  • the information contained in the information element RRCConnectionReconfiguration-vl 020-IEs is used to reconfigure the SCell.
  • the information used to configure the CQI index table can be carried by the signaling for reconfiguration of the RRC connection.
  • the information element SCellToAddModList-rlO may also be included in the information element AS-Config for handover preparation. Therefore, the information for configuring the CQI index table can be carried by the user to switch the prepared signaling.
  • this configuration is cell-specific, that is, all users who use the cell as the SCell use the table.
  • the configuration information can be configured through signaling of RRC connection reconfiguration when the SCell is configured. It is also possible to interact between the source base station and the target base station when the user is ready to switch, that is, to configure by switching the prepared signaling.
  • the eNB may add signaling for configuring the "CQI index table" in the RRC layer dedicated signaling.
  • the "modulation and TBS sequence number table” is also implicitly configured accordingly.
  • the "CQI index table” configured by this method and the corresponding “modulation and TBS sequence number table” can be used only for downlink transmission, and can also be used for both downlink transmission and uplink transmission.
  • the "CQI index table” configured by this method and the corresponding "modulation and TBS number table” can be used only for PCell, or both for PCell and SCell.
  • the "modulation and TBS sequence number table” is user-specific (UE-specific), that is, each user in the cell adopts a corresponding table according to its own configuration.
  • a new information element indicating the configured CQI index table may be added to the information element PhysicalConfigDedicated.
  • a new information element PUCCH-ConfigDedicated-rl2 added in the information element PhysicalConfigDedicated is used to indicate the configured CQI index table.
  • composition of the information element PhysicalConfigDedicated after the above information element PUCCH-ConfigDedicated-rl2 is added is added.
  • the meaning of "Need ON” is the same as the existing standard, and will not be explained here. ;
  • the information element PhysicalConfigDedicated may be included in the initial setup signaling for the RRC connection, for example:
  • the information element PhysicalConfigDedicated is included in the information ⁇ adio esourceConfigDedicated.
  • the information ⁇ adio esourceConfigDedicated is included in the information element RRCConnectionSetup-r8-IEs.
  • the information element RRCConnectionSetup-r8-IEs is included in RRCConnectionSetu.
  • the information element RRCConnectionSetup is used for the initial establishment of the RRC connection. Therefore, the information element PhysicalConfigDedicated can be carried by the initially established signaling for the RRC connection.
  • the information element PhysicalConfigDedicated may also be included in the signaling for reconfiguration of the RRC connection, for example:
  • the information element PhysicalConfigDedicated is included in the information ⁇ adioResourceConfigDedicated.
  • the information ⁇ RadioResourceConfigDedicated is used for handover and is optionally included in the information element RRCConnectionReconfiguration-r8-IEs.
  • the information element RRCConnection econfiguration-r8 -IEs is included in the message, RRC RRCConnectionReconfiguration.
  • the information element RRCConnectionReconfiguration is used for reconfiguration of the RRC connection.
  • the information element PhysicalConfigDedicated can be carried by the signaling for reconfiguration of the RRC connection.
  • the information element PhysicalConfigDedicated may also be included in the signaling for re-establishment of the RRC connection, for example:
  • the information element PhysicalConfigDedicated is included in the information ⁇ adioResourceConfigDedicated.
  • the information ⁇ adioResourceConfigDedicated is contained in the information element CConnection eestablishment-r8-IEs.
  • the information element RRCConnection eestablishment-r8-IEs is included in the information element RCConnectionReestablishment.
  • the information element RRCConnectionReestablishment is used for re-establishment of the RRC connection.
  • the information element PhysicalConfigDedicated can be carried by the re-established signaling for the RRC connection.
  • the information element PhysicalConfigDedicated may also be included in the signaling for handover preparation, for example: the information element PhysicalConfigDedicated is included in the information element RadioResourceConfigDedicated.
  • the information element adioResourceConfigDedicated is included in the information element AS-Config.
  • the information element AS-Config is used for handover preparation. Therefore, the information element PhysicalConfigDedicated can be carried by the signaling used for handover preparation.
  • this configuration is UE-specific, ie each The UEs use the corresponding table according to their own configuration information.
  • the configuration information can be configured when the RRC connection is established, can be configured during RRC connection reconfiguration, and can also be configured when the RRC connection is re-established. And it can interact between the source base station and the target base station when the user switches preparation.
  • the "CQI index table” and the “modulation and TBS sequence number table” can also be configured in accordance with the method of the present embodiment.
  • the eNB may add signaling for configuring the "CQI index table” in the RRC layer dedicated signaling.
  • the corresponding "Modulation and TBS Sequence Number Table” is indirectly configured.
  • the "CQI index table” configured by this method and the corresponding "modulation and TBS sequence number table” can be used only for downlink transmission, and can also be used for both downlink transmission and uplink transmission.
  • the "CQI index table” and “modulation and TBS sequence number table” configured by this method are user-specific (UE-specific), that is, each user adopts a corresponding configuration according to his own configuration. Form.
  • a new signaling for indicating the configured CQI index table may be added in the information element PhysicalConfigDedicatedSCell-rlO, for example, a new information element PUCCH-ConfigDedicatedSCell-rl2 is added to the information element PhysicalConfigDedicatedSCell-rlO for indicating The configured CQI index form.
  • the following information element is added to the information element PUCCH-ConfigDedicatedSCell-rl2
  • the information element PhysicalConfigDedicatedSCell-rlO can contain In the signaling for reconfiguration of the RRC connection, for example: the information element PhysicalConfigDedicatedSCell-rlO is included in the information element RadioResourceConfigDedicatedSCell-rlO.
  • the information element adio esourceConfigDedicatedSCell-rlO is optionally included in SCellToAddMod-rlO.
  • One or more information elements SCellToAddMod-rlO constitute an information element SCellToAddModList-rlO.
  • the information element SCellToAddModList-rlO is included in the information element RRCConnectionReconfiguration-vl020-IEs.
  • the information element RRCConnectionReconfiguration-vl020-IEs is further wrapped in layers and finally included in the information element RRCConnectionReconfiguration.
  • the information ⁇ RRCConnectionReconfiguration is used for RRC connection reconfiguration.
  • the information contained in the information element RRCConnectionReconfiguration-vl020-IEs is used to reconfigure the SCell.
  • the information element PhysicalConfigDedicatedSCell-rlO can be carried by the signaling for reconfiguration of the RRC connection.
  • the information element PhysicalConfigDedicatedSCell-rlO may be included in the signaling for handover preparation, for example: the information element PhysicalConfigDedicatedSCell-rlO is included in the information element RadioResourceConfigDedicatedSCell-rlO.
  • the information element adio esourceConfigDedicatedSCell-rlO is optionally included in SCellToAddMod-rlO.
  • One or more information elements SCellToAddMod-rlO form an information element SCellToAddModList-rlO.
  • the information element SCellToAddModList-rlO is included in the information element AS-Config for handover preparation. Therefore, the information element PhysicalConfigDedicatedSCell-rlO can be carried by the signaling used for handover preparation.
  • the "CQI index table” is configured in accordance with the method described in this embodiment (the corresponding "modulation and TBS sequence number table” is indirectly configured), then this configuration is user-specific, ie each user Use the appropriate form according to your own configuration.
  • the configuration information can be configured through RRC connection reconfiguration signaling when configuring the SCell. And it can interact between the source base station and the target base station when the user switches preparation.
  • only one of the available candidate forms (that is, a new form having only one candidate other than the standard provided form) is taken as an example, but the embodiment is not limited thereto, when available.
  • the eNB may also indicate the corresponding table sequence by using the foregoing RRC common signaling or the RRC dedicated signaling.
  • the new signaling is in the following form:
  • NewCQITable-rl2 ENUMERATED ⁇ 0,1,2,3 ⁇
  • the CQI index table indication information may also be carried by medium access control (MAC) signaling.
  • MAC medium access control
  • a CQI index table can be indicated by a MAC signaling with only header information.
  • the header information contains the specified LCID. If the eNB configures the MAC signaling for the UE, it indicates that one of the CQI index tables, for example, a new table is used; if the eNB does not configure the MAC signaling for the UE, it indicates that another CQI index table, such as an old table, is used. .
  • the eNB defines a CQI index Table Command MAC control by using a MAC PDU subheader (header information) with a specified LCID.
  • the control element or padding starts in the next byte; "LCID" indicates that the corresponding MAC CE is the CQI index Table Command MAC CE.
  • which CQI index table is selected is indicated by whether the CQI index Table Command MAC CE is configured. For example, if the eNB configures the CQI index Table Command MAC CE for the UE, it indicates that the UE uses the new "CQI index table" in the downlink transmission or the downlink transmission and the uplink transmission, otherwise the original "CQI index table” is used. Wherein, when the above CQI index Table Command MAC CE is configured, the "modulation and TBS sequence number table" is also indirectly configured accordingly.
  • a MAC signaling containing header information and content information can be used to indicate The CQI index table is similar to the example 5.
  • the header information includes a specified LCID, which is used to indicate that the MAC signaling is used to indicate a CQI index table.
  • the content information includes a sequence number of the configured CQI index table.
  • FIG. 3 is a schematic diagram of the composition of the header information of the MAC signaling according to the method according to the embodiment, as shown in FIG.
  • the eNB defines a CQI index Table Command MAC control element with a MAC PDU subheader with a specified LCID.
  • R is a reserved bit and is set to "0"
  • E is an extended field, and the extended field is an identifier indicating whether there are other domains in the MAC Header, and E is set to 1 to indicate at least one other
  • the R/R/E/LCID field E is set to 0 to indicate that there is a MAC SDU, a MAC control element or padding starts in the next byte
  • LCID indicates that the corresponding MAC CE is the CQI index Table Command MAC CE.
  • FIG. 4 is a schematic diagram showing the composition of content information of MAC signaling according to the method of the present embodiment.
  • the MAC control element is fixed length, and is represented by a byte as shown in FIG. Octet) definition.
  • “R” is a reserved bit and is set to 0;
  • the "CQI Idx Tab” field is used to indicate the sequence number of the "CQI index table” configured by the base station for the UE. The length of this field is determined by the total number of available tables, assuming the form is available. If the number is x, then the number of bits occupied by this field is log 2 (x) ; the bits other than the bits occupied by the CQI Idx Tab field are R bits, that is, the R bits share 8 - log 2 (x).
  • the eNB configures a CQI index table for the UE by using RRC common signaling or RRC dedicated signaling or MAC signaling, so that the UE determines the CQI index according to the CQI index table configured by the eNB, and feeds back the CQI information. Therefore, the normal configuration of the LTE system can be ensured without increasing the number of CQI index and I MCS bits.
  • the embodiment of the present invention further provides a method for configuring a channel quality indicator (CQI), which is a UE side process corresponding to the method of Embodiment 1.
  • CQI channel quality indicator
  • FIG. 5 is a flowchart of the method. Referring to FIG. 5, the method includes: Step 501: A UE calculates a PMI and an RI according to a channel estimation result;
  • the UE In the process of receiving downlink data or performing uplink and downlink data transmission, the UE performs channel estimation according to a conventional method, and calculates PMI and RI according to the result of channel estimation.
  • the processing procedure is the same as that of the prior art, and will not be described here.
  • Step 502 The UE determines, according to the received CQI index table indication information sent by the base station, a CQI index table configured by the base station.
  • the UE may perform signaling according to the received information that carries the configured CQI index table (for example, RRC).
  • the common signaling or RRC dedicated signaling or MAC signaling determines the configured CQI index table to be used.
  • the format and the bearer mode of the signaling for carrying the information of the CQI index table configured as described above have been described in detail in Embodiment 1 or in Embodiment 5, and the content thereof is incorporated herein, and details are not described herein again. .
  • Step 503 The UE calculates a CQI index according to the PMI and the RI by using a configured CQI index table. Wherein, after determining the CQI index table to be used, the UE can calculate CQI inde X according to a conventional method.
  • the processing procedure is the same as the prior art, and details are not described herein again.
  • the UE when a CQI index table supporting higher order modulation is added to the standard, the UE can calculate the CQI index based on the new table, and calculate the calculated CQI information (including CQI index and PMI and RI).
  • the base station can be fed back to the base station, so that the base station can schedule and configure the UE according to the actual scheduling and load conditions and referring to the CQI information fed back by the UE.
  • the base station can schedule and configure the UE according to the actual scheduling and load conditions and referring to the CQI information fed back by the UE.
  • the embodiment of the present invention further provides a base station, as described in Embodiment 3 below. Since the principle of solving the problem is similar to the method of Embodiment 1, the specific implementation may refer to the implementation of the method of Embodiment 1. The repetitions are not repeated here.
  • the embodiment of the invention provides a base station (eNB). 6 is a schematic diagram of the composition of the base station. Referring to FIG. 6, the base station includes:
  • the configuration unit 61 configures a CQI index table for the UE by using the CQI index table indication information, so that the UE determines the configured CQI index table according to the indication information, and uses the configured CQI index table to indicate according to the calculated precoding matrix ( PMI) and rank indication (RI) calculate CQI inde X .
  • the configuration unit 61 passes
  • the RRC signaling carries the CQI index table indication information, where the configuration unit may carry the RRC signaling by using a common information element for configuring PUCCH transmission, for example, the CQI index table indication information passes the information element PUCCH- ConfigCommon is hosted.
  • the information element PUCCH-ConfigCommon is included in the broadcast signaling; or included in the signaling for reconfiguration of the RRC connection; or included in the signaling used for handover preparation.
  • the configuration unit 61 carries the CQI index table indication information by using RRC signaling, where the configuration unit may be configured to configure PUCCH transmission.
  • the user-specific information element carries the RRC signaling, for example, the CQI index table indication information is carried by the information element PUCCH-ConfigDedicated-rl2; or the information of the CQI index table It is carried by the information element PUCCH-ConfigDedicatedSCell-rl2.
  • the PUCCH-ConfigDedicated-rl2 information element may be included in the initial setup signaling for the RRC connection; or may be included in the signaling for reconfiguration of the RRC connection; or may be included in the RRC connection In the re-established signaling; or may be included in the signaling for handover preparation.
  • the PUCCH-ConfigDedicatedSCell-rl2 information element may be included in signaling for reconfiguration of the RRC connection; or may be included in signaling for handover preparation.
  • the configuration unit 61 carries the above by MAC signaling.
  • the CQI index table indicates information, for example, a CQI index table is indicated by MAC signaling with specific indication information, such as MAC signaling with only header information, and the header information includes a specified LCID.
  • the UE can determine, according to whether MAC signaling with specific indication information is received, the eNB configures the eNB.
  • CQI index table that is, the CQI index table that the UE needs to use.
  • the above configuration unit 61 passes the MAC.
  • the signaling carries the above CQI index table indication information, for example, by having specific indication information.
  • the MAC signaling indicates a CQI index table, such as MAC signaling having header information and content information, the header information including a specified LCID, and the content information includes a sequence number of the configured CQI index table.
  • the UE may determine the configured CQI index table (that is, the CQI index table that the UE needs to use) according to the received MAC signaling with specific indication information.
  • the UE configures the CQI index table that it needs to use, and can support multiple tables, that is, a CQI index table that supports higher order modulation can be added to the standard. Thereby, not only can support higher-order modulation methods, but also guarantee
  • the embodiment of the present invention further provides a user equipment, as described in the following embodiment 4.
  • the principle of the user equipment is similar to that of the second embodiment. Therefore, the specific implementation may refer to the method of the second embodiment. Implementation, repetition will not be repeated.
  • FIG. 7 is a schematic diagram of the composition of the user equipment.
  • the base station includes: a first calculating unit 71, which calculates PMI and RI according to the channel estimation result ;
  • a determining unit 72 which determines, according to the received CQI index table indication information sent by the base station, a base station configured as a CQI index table configured by the UE;
  • the CQI index table indication information sent by the base station may be configured by using the method in Embodiment 1 or configured by the method in Embodiment 5, and details are not described herein again.
  • the second calculating unit 73 calculates the CQI inde X according to the PMI and RI calculated by the first calculating unit 71 by using the CQI index table configured by the determining unit 72 for the UE.
  • the configuration unit 61 carries the CQI index table indication information by using RRC signaling, where the configuration unit may be configured to configure PUCCH transmission.
  • the public information element carries the RRC signaling.
  • the CQI index table indication information is carried by the information element PUCCH-ConfigCommon.
  • the information element PUCCH-ConfigCommon is included in the broadcast signaling; or included in the signaling for reconfiguration of the RRC connection; or included in the signaling used for handover preparation.
  • the configuration unit 61 carries the CQI index table indication information by using RRC signaling, where the configuration unit may be configured to configure PUCCH transmission.
  • the user-specific information element carries the RRC signaling, for example, the CQI index table indication information is carried by the information element PUCCH-ConfigDedicated-rl2; or the CQI index table indication information is carried by the information element PUCCH-ConfigDedicatedSCell-rl2.
  • the PUCCH-ConfigDedicated-rl2 information element may be included in the initial setup signaling for the RRC connection; or may be included in the signaling for reconfiguration of the RRC connection; or may be included in the RRC connection In the re-established signaling; or may be included in the signaling for handover preparation.
  • the PUCCH-ConfigDedicatedSCell-rl2 information element may be included in the signaling for reconfiguration of the RRC connection; or may be included in the signaling used for handover preparation.
  • the configuration unit 61 carries the above by MAC signaling.
  • the CQI index table indicates information, for example, a CQI index table is indicated by MAC signaling with specific indication information, such as MAC signaling with only header information, and the header information includes a specified LCID.
  • the UE can determine the CQI index table (ie, the CQI index table that the UE needs to use) configured by the eNB according to whether MAC signaling with specific indication information is received.
  • the above configuration unit 61 passes the MAC.
  • the signaling carries the CQI index table indication information, for example, by using a MAC signaling with specific indication information to indicate a CQI index table, such as MAC signaling with header information and content information, where the header information includes a specified LCID,
  • the content information contains the serial number of the configured CQI index table.
  • the UE can determine the configured CQI index table (that is, the CQI index table that the UE needs to use) according to the received MAC signaling with specific indication information.
  • the eNB configures the CQI index table for the UE according to the method of Embodiment 1, and the manner of carrying the CQI index table indication information received by the UE is used as an example.
  • the eNB can also configure the CQI index table for the UE by configuring the modulation and TBS sequence table time-connection (recessive) for the UE according to the method of Embodiment 5.
  • the UE in this embodiment can still receive the received information according to the received unit 72.
  • the CQI index table indication information sent by the base station determines a CQI index table configured by the base station for the UE.
  • the CQI index table used by the UE in this embodiment can be supported according to the CQI index table configured by the eNB through RRC common signaling or RRC dedicated signaling or MAC signaling, that is, the standard can be added to support higher order.
  • the modulated CQI index table As a result, not only can higher-order modulation modes be supported, but also the normal configuration of the LTE system can be guaranteed.
  • the embodiment of the invention further provides a configuration method of a modulation and coding scheme (MCS).
  • MCS modulation and coding scheme
  • Figure 8 is a flow chart of the method. Referring to Figure 8, the method includes:
  • Step 801 The eNB configures, by using a modulation and transport block size (TBS) sequence number table indication information, a modulation and TBS sequence number table used by the UE for downlink transmission, and/or a modulation and TBS sequence number table to be used for uplink transmission, so that the UE is in the UE.
  • TBS modulation and transport block size
  • the coding and modulation scheme configured by the eNB is determined according to the modulation and TBS number table used by the downlink transmission and/or the modulation and TBS sequence number table to be used for the uplink transmission.
  • the eNB may carry the indication information of the modulation and TBS sequence number table used for the uplink transmission and/or the downlink transmission by using the RRC common signaling.
  • the indication information of the modulation and TBS sequence number table used by the downlink transmission may be carried by the information element PDSCH-ConfigCommon, and the information element PDSCH-ConfigCommon may be included in the broadcast signaling. It may also be included in the signaling for reconfiguration of the RRC connection, and may also be included in the signaling for handover preparation.
  • the indication information of the modulation and TBS number table used by the uplink transmission may be carried by the information element PUSCH-ConfigCommon, and the information element PUSCH-ConfigCommon may be included in the broadcast signaling, or may be included in the RRC connection.
  • the configured signaling may also be included in the signaling used for handover preparation.
  • the following describes a method for transmitting the indication information of the modulation and TBS sequence number table used for the uplink transmission and/or the downlink transmission by using the RRC common signaling through a specific example.
  • the "modulation and TBS sequence number table" used for the uplink transmission and the downlink transmission may be implicitly (indirect) configured after the eNB configures the "CQI index table” to be used by the UE according to the method of Embodiment 1. (ie, the old and new "CQI index form” and the use of the old and new "modulation and TBS serial number table” are consistent).
  • the "modulation and TBS sequence number table” used for uplink transmission and downlink transmission can also be configured separately.
  • the eNB For the indirect configuration mode, after the eNB configures the CQI index table to be used for the UE by using the method in Embodiment 1, the eNB sends the CQI index table corresponding to the configured CQI index table to the UE.
  • I MCS whereby the UE can query the corresponding "modulation and TBS sequence number table" according to the received I MCS , and further perform demodulation decoding of downlink transmission, or demodulation decoding and uplink transmission of downlink transmission according to the obtained TBS sequence number. Coded modulation. Therefore, for the indirect configuration scheme, it will not be described here.
  • This example is an example of adding a "modulation and TBS sequence number table" for configuring uplink transmission and/or downlink transmission in RRC common signaling.
  • the "CQI index table” is indirectly configured. That is, the use of the old and new "modulation and TBS serial number table” and the old and new "CQI index table” are consistent.
  • the "modulation and TBS sequence number table” is configured using RRC common signaling
  • the “modulation and TBS sequence number table” configured by this method and the corresponding "CQI index table” are cell-specific. , that is, all users in the community use this form.
  • a downlink transmission may be added to the information element PDSCH-ConfigCommon.
  • the signaling of the modulation and TBS sequence number table is as follows:
  • signaling for configuring the modulation and TBS sequence number table of the uplink transmission may also be added to the information element PUSCH-ConfigCommon as follows:
  • the "NewULModAndTBSTable-rl2" is a new signaling, which is used to indicate the configured modulation and TBS sequence number table for uplink transmission.
  • the signaling is optional, if the corresponding "ENUMERATED ⁇ true ⁇ " is configured
  • the new uplink "modulation and TBS sequence number table” is used, and if the signaling is not included in the information element PUCCH-ConfigCommon, the original uplink “modulation and TBS sequence number table” is configured.
  • PDSCH-ConfigCommon can be included in the information element RadioResourceConfigCommonSIB.
  • the information element RadioResourceConfigCommonSIB is included in the information element SystemInformationBlockType2, so the information for configuring the "modulation and TBS sequence number table" of the downlink/uplink transmission can be carried by the broadcast signaling.
  • the information element PUSCH-ConfigCommon may also be included in the information element adioResourceConfigCommon.
  • the information element PDSCH-ConfigCommon may also optionally be included in the information ⁇ adioResourceConfigCommon.
  • the adioResourceConfigCommon information element is included in the information element MobilityControlInfo, and the information element MobilityControlInfo is typically used for handover, optionally included in the information element RRCConnectionReconfiguration-r8-IEs.
  • Information element The RRCConnection econfiguration-r8-IEs are included in the ACK and RRCConnectionReconfiguration for reconfiguration of the RRC connection.
  • the information for configuring the "modulation and TBS sequence number table" of the PCell uplink/downlink transmission can be configured by the RRC link reconfiguration signaling at the time of RRC connection reconfiguration.
  • RadioResourceConfigCommon can also be included in the RadioResourceConfigCommonSCell-rlO information element.
  • the information element RadioResourceConfigCommonSCell-rlO can be included in the information element SCellToAddMod-rlO.
  • One or more information elements SCellToAddMod-rlO form an information element SCellToAddModList-rlO.
  • the information element SCellToAddModList-rlO can be included in the information element RRCConnection econfiguration-v 1020-IEs.
  • the RRCConnection econfiguration-v 1020-IEs is further wrapped in layers and finally included in the information element RRCConnectionReconfiguration.
  • Information RRC RRCConnectionReconfiguration is used for RRC connection reconfiguration.
  • the information contained in the information element RRCConnectionReconfiguration-v 1020-IEs is used to reconfigure the SCell. Therefore, the information element PUSCH-ConfigCommon and the PDSCH-ConfigCommon can also be carried over the signaling of the reconfiguration for the RRC connection.
  • the information element SCellToAddModList-rlO can also be included in the information element AS-Config.
  • the information element AS-Config is used for handover preparation. Therefore, the information element PUSCH-ConfigCommon and the information element PDSCH-ConfigCommon can also pass the signaling bearer for handover preparation.
  • the information of the "modulation and TBS sequence number table" for configuring the uplink/downlink transmission of the SCell can be configured by RRC connection reconfiguration when the SCell is configured. And it can interact between the source base station and the target base station when the user switches preparation.
  • the eNB may carry the indication information of the modulation and TBS sequence number table used for the uplink transmission and/or the downlink transmission by using the RRC dedicated signaling.
  • the modulation information used by the downlink transmission and the indication information of the TBS sequence number table may pass through the information element.
  • the information element PDSCH-ConfigDedicated may be included in the initial setup signaling for the RRC connection, may also be included in the signaling for reconfiguration of the RRC connection, and may also be included in the reestablishment letter for the RRC connection. In the order, it may also be included in the signaling for handover preparation.
  • the indication information of the modulation and TBS sequence number table used by the uplink transmission may pass through the information element.
  • the PUSCH-ConfigDedicated-vl020 bearer can also be carried by the PUSCH-ConfigDedicatedSCell-rlO information element.
  • the information element PUSCH-ConfigDedicated-vl020 may be included in the initial setup signaling for the RRC connection; or included in the signaling for reconfiguration of the RRC connection; or included in the reestablishment letter for the RRC connection In the order; or included in the signaling used for handover preparation.
  • the information element PUSCH-ConfigDedicatedSCell-r 10 may be included in the signaling for reconfiguration of the RRC connection; or included in the signaling for handover preparation.
  • the following describes a method for using the RRC dedicated signaling to carry the indication information of the modulation and TBS sequence number used for uplink transmission and/or downlink transmission by using a specific example.
  • the "modulation and TBS sequence number table” used for uplink transmission and downlink transmission may also be separately configured during data transmission.
  • the TBS serial number table “also configures the "modulation and TBS sequence number table” used for downlink transmission.
  • This example is an example of adding a "modulation and TBS sequence number table" for configuring uplink transmission and/or downlink transmission in RRC dedicated signaling.
  • the "CQI index table” is indirectly configured. That is, the use of the old and new "modulation and TBS serial number table” and the old and new "CQI index table” are consistent.
  • the downlink and/or uplink “modulation and TBS sequence number table” configured by this method and the corresponding "CQI index table” are user-specific ( UE-specific, that is, each user adopts a corresponding form according to their own configuration.
  • signaling for configuring the modulation and TBS sequence number table of the downlink transmission may be added to the information element PDSCH-ConfigDedicated as follows:
  • signaling for configuring the "modulation and TBS sequence number table" of the uplink transmission may also be added in the information element PUSCH-ConfigDedicated-vl020, as follows: : Judah:
  • "NewULModAndTBSTable-rl2" has the same meaning as Example 7, and will not be described here.
  • the corresponding signaling for configuring the "modulation and TBS sequence number table" of the uplink transmission may also be added to the information element PUSCH-ConfigDedicatedSCell-rlO, as shown below: Sa ⁇ painting the national face: ;:;: discussion;: show the doctor
  • the information element PDSCH-ConfigDedicated and the information element PUSCH-ConfigDedicated-vl020 may be included in the information element PhysicalConfigDedicated.
  • the information ⁇ PhysicalConfigDedicated is included in the information ⁇ adio esourceConfigDedicated.
  • the information element RadioResourceConfigDedicated can be included in the information element RRCConnectionSetup-r8-IEs.
  • the information element RRCConnectionSetup-r8-IEs is included in RRCConnectionSetu.
  • the information element RRCConnectionSetup is used for the initial establishment of the RRC connection. Therefore, the information element PDSCH-ConfigDedicated and the information element PUSCH-ConfigDedicated-vl020 can pass the initially established signaling bearer for the RRC connection.
  • the information element RadioResourceConfigDedicated can also be used for handover, and is optionally included in the information element RRCConnection econfiguration-r8-IEs.
  • the information element RRCConnection econfiguration-r8-IEs is included in the information element RRCConnectionReconfiguration, the information element RRCConnectionReconfiguration is used for reconfiguration of the C connection. Therefore, the information element PDSCH-ConfigDedicated and the information element PUSCH-ConfigDedicated-vl020 can be used for the RRC connection. Configured signaling bearers.
  • RadioResourceConfigDedicated can also be included in the information element RRCConnection eestablishment-r8-IEs.
  • RRCConnectionReestablishment-r8-IEs is included in the information element RRCConnectionReestablishment.
  • the information element RRCConnectionReestablishment is used for re-establishment of the RRC connection. Therefore, the information element PDSCH-ConfigDedicated and the information element PUSCH-ConfigDedicated-vl020 can be carried over the re-established signaling for the RRC connection.
  • the information element RadioResourceConfigDedicated can also be included in the information element AS-Config.
  • Information Element AS-Config is used to switch preparation. Therefore, the information element PDSCH-ConfigDedicated and the information element PUSCH-ConfigDedicated-vl020 can pass the signaling bearer for handover preparation.
  • the configuration is UE-specific, and each UE adopts a corresponding table according to its own configuration information.
  • the configuration information may be configured when the RRC connection is established, when the RRC connection is reconfigured, and when the RRC connection is re-established, using RRC dedicated signaling. And it can interact between the source base station and the target base station when the user switches preparation.
  • the information element PDSCHConfigDedicated and the information element PUSCH-ConfigDedicatedSCell-r 10 may also be included in the information element PhysicalConfigDedicatedSCell-rlO.
  • the information element PhysicalConfigDedicatedSCell-rlO is included in the information element adio esourceConfigDedicatedSCell-rlO.
  • the information element adio esourceConfigDedicatedSCell-rlO can optionally be included in SCellToAddMod-rlO.
  • One or more information elements SCellToAddMod-rlO constitute an information element SCellToAddModList-rlO.
  • the information element SCellToAddModList-rlO can be included in the information element RRCConnection econfiguration-v 1020-IEs.
  • the RRCConnection econfiguration-v 1020-IEs is further wrapped in layers and finally included in the information element RRCConnectionReconfiguration.
  • Information RRC RRCConnectionReconfiguration is used for RRC connection reconfiguration.
  • the information contained in the information element RRCConnectionReconfiguration-vl 020-IEs is used to reconfigure the SCell. Therefore, the information element PDSCHConfigDedicated and the information element PUSCH-ConfigDedicatedSCell-r 10 can be carried by the signaling for reconfiguration of the RRC connection.
  • the information element SCellToAddModList-rlO may also be included in the information element AS-Config.
  • the information element AS-Config is used for handover preparation. Therefore, the information element PDSCHConfigDedicated and the information element PUSCH-ConfigDedicatedSCell-rl 0 can pass the signaling bearer for handover preparation.
  • the configuration is UE-specific, and each UE according to its own configuration The information is in the corresponding form.
  • the configuration information can be configured through RRC connection reconfiguration when configuring the SCell. And it can interact between the source base station and the target base station when the user switches preparation.
  • Example 7 and Example 8 only one of the available candidate tables (that is, a new table having only one candidate other than the standard provided table) is taken as an example, but the present embodiment is not limited thereto, when available.
  • the eNB may also pass the above RRC common signaling.
  • the foregoing RRC dedicated signaling indicates a corresponding table number, for example, the newly added signaling is in the following form:
  • NewDLModAndTBSTable-rl2 ENUMERATED ⁇ 0,1,2,3 ⁇
  • NewULModAndTBSTable-rl2 ENUMERATED ⁇ 0,1,2,3 ⁇
  • NewDLModAndTBSTable-rl2 ENUMERATED ⁇ 0,1,2,3 ⁇ Optional Need ON or
  • the eNB may carry the modulation and TBS sequence number table used for uplink transmission and/or downlink transmission by using MAC signaling. Instructing information that the MAC signaling is MAC signaling with only header information, or the MAC signaling has MAC signaling of header information and content information, where the header information includes a specified LCID, and the content information includes The modulation and TBS sequence number table used for uplink transmission and/or the modulation and TBS sequence number table used for downlink transmission.
  • the following describes a method for carrying information indicating the modulation and TBS sequence number used for uplink transmission and/or downlink transmission using MAC signaling by a specific example.
  • the "modulation and TBS sequence number table" used for the uplink transmission and the downlink transmission is separately configured by the signaling of the MAC layer ("CQI index table” is indirectly configured, that is, the old and new downlink “modulation and TBS sequence number table”” Consistent with the use of the old and new "CQI index table”.).
  • FIG. 9 is a schematic diagram showing the composition of header information of MAC signaling according to the method of the present embodiment.
  • the eNB defines a Mod and TBS Table Command MAC control element by using a MAC PDU subheader with a specified LCID.
  • R is a reserved bit and is set to "0"
  • E is an extended field, and the extended field is an identifier indicating whether there are other domains in the MAC Header
  • E is set to "1" Indicates that there is at least one other R/R/E/LCID field.
  • E is set to "0” to indicate that there is a MAC SDU, a MAC control element or padding starts in the next byte;
  • LCID indicates that the corresponding MAC CE is Mod and TBS Table Command MAC CE.
  • FIG. 10 is a schematic diagram showing the composition of content information of MAC signaling according to the method of the present embodiment.
  • the MAC control element is of a fixed length, and is represented by a byte as shown in FIG. Octet) definition, where "R" is a reserved bit, set to "0";”DL Mod and TBS Tab” field is used to indicate the sequence number of the downlink “modulation and TBS sequence number table” configured by the base station for the UE, the length of this field It is determined by the total number of available downlink "modulation and TBS sequence number tables".
  • the number of bits occupied by this field is log 2 ( 3 ⁇ 4 ), except for the bits occupied by the DL Mod and TBS Tab fields.
  • the bits are R bits, that is, the R bits share 8 - log 2 ( 3 ⁇ 4 ).
  • the MAC control element is of a fixed length, and is represented by a byte as shown in FIG. (octet) definition, where "R" is a reserved bit, set to "0";”UL Mod and TBS Tab” field is used to indicate the sequence number of the uplink “modulation and TBS sequence number table” configured by the base station for the UE.
  • the length is determined by the total number of available uplink "modulation and TBS sequence number tables".
  • the number of available tables is x ra
  • the number of bits occupied by this field is 1 ⁇ (3 ⁇ 4), except for the bits occupied by the UL Mod and TBS Tab fields.
  • the bits other than the R bits, that is, the R bits share S - log ⁇ x ⁇ .
  • Figure 12 is a diagram showing the composition of another embodiment of the content information of the MAC signaling according to the method of the present embodiment.
  • the MAC control element is of a fixed length, and is represented by a word as shown in Figure 12 below. Section (octet) definition. Where “R” is a reserved bit and is set to "0"; the "UL Mod and TBS Tab” field is used to indicate the sequence number of the uplink "modulation and TBS sequence number table" configured by the base station for the UE. The length of this field is determined by the available uplink. The total number of modulation and TBS sequence number tables is determined.
  • the number of available tables is x ra
  • the number of bits occupied by this field is log 2 (x ra )
  • the "DL Mod and TBS Tab " field is used to indicate that the base station is a UE.
  • the length of this field is determined by the total number of available downlink "modulation and TBS sequence number tables”.
  • the number of bits occupied by this field is log 2 ( Di ).
  • the bits other than the bits occupied by the UL Mod and TBS Tab fields and the DL Mod and TBS Tab fields are R bits, that is, the R bits have 8 - log 2 ⁇ x UL ) - log 2 ⁇ x DL ).
  • the eNB configures a modulation and TBS sequence number table for the UE by using RRC common signaling or RRC dedicated signaling or MAC signaling, so that the UE queries the corresponding table according to the received I MCS .
  • the TBS is determined, and demodulation decoding of the downlink data or modulation coding of the uplink data is performed according to the determined TBS, thereby ensuring normal configuration of the LTE system without increasing the number of CQI index and I MCS bits.
  • the embodiment of the present invention further provides a configuration method of a modulation and coding scheme (MCS), which is a UE side processing corresponding to the method of Embodiment 5.
  • MCS modulation and coding scheme
  • Figures 13 and 14 are flow diagrams of two embodiments of the method.
  • the method includes:
  • Step 1301 The UE determines, according to the received modulation and the indication information of the TBS sequence number table sent by the base station, a modulation and TBS sequence number table used for downlink transmission;
  • the indication information of the modulation and TBS sequence number table may be carried and sent in the manner of Embodiment 5, or may be indirectly (recessively) configured and transmitted in the manner of Embodiment 1, and the content thereof is incorporated herein. Let me repeat.
  • Step 1302 The UE determines, according to the modulation and TBS sequence number table used by the downlink transmission, a coded modulation scheme configured by the base station.
  • the UE may determine the corresponding TBS by looking up the table according to the received coding modulation scheme indication information.
  • the specific manner of checking the table is the same as that of the prior art, and details are not described herein again.
  • the UE can determine the size of the information bits of the transport block by querying the TBS table, and indirectly obtain the coded rate, and perform demodulation and decoding of the downlink data by using the obtained coded rate.
  • the TBS table may be the table four indicated in the background art.
  • the TBS table may be Tables should be added to Table 4. The method for demodulating and decoding is the same as the prior art, and details are not described herein again.
  • the UE can perform demodulation and decoding of the downlink data, and does not increase the number of bits of the I MCS , and supports multiple "modulation and TBS sequence number tables". , can also ensure the normal configuration of the LTE system.
  • the method includes:
  • Step 1401 The UE determines, according to the received modulation and TBS sequence number table indication information sent by the base station, a modulation and TBS sequence number table to be used for the uplink transmission;
  • the indication information of the modulation and TBS sequence number table may be carried and sent in the manner of Embodiment 5, or may be indirectly (recessively) configured and transmitted in the manner of Embodiment 1, and the content thereof is incorporated herein. Let me repeat.
  • Step 1402 The UE determines, according to the modulation and TBS sequence number table to be used for the uplink transmission, a coded modulation scheme configured by the base station.
  • the UE may determine the corresponding TBS by looking up the table according to the received coded modulation scheme indication information.
  • the specific manner of checking the table is the same as that of the prior art, and details are not described herein again.
  • the UE can determine the size of the information bits of the transport block by querying the TBS table, and indirectly obtain the coded rate, and use the obtained coded rate to perform coding and modulation of the uplink data.
  • the TBS table may be the table four indicated in the background art.
  • the TBS table may be Tables should be added to Table 4. The method of coding and modulation is the same as that of the prior art, and details are not described herein again.
  • the UE after determining the coded modulation scheme configured by the base station for the UE, the UE can perform coding and modulation of the uplink data, and does not increase the number of bits of the I MCS , and supports multiple "modulation and TBS sequence number tables". It also ensures the normal configuration of the LTE system.
  • the embodiment of the present invention further provides a base station, as described in Embodiment 7 below. Since the principle of solving the problem is similar to the method of Embodiment 5, the specific implementation may refer to the implementation of the method of Embodiment 5. The repetitions are not repeated here.
  • the embodiment of the invention provides a base station (eNB). 15 is a schematic diagram of the composition of the eNB. Referring to FIG. 15, the eNB includes:
  • the configuration unit 151 configured by the modulation and TBS sequence number table indication information, the modulation and TBS sequence number table used by the UE for downlink transmission, and/or the modulation and TBS sequence number table to be used for uplink transmission, so that the UE receives the After indicating the information, the modulating modulation scheme configured by the eNB is determined according to the modulation and TBS number table used by the downlink transmission and/or the modulation and TBS sequence number table to be used for the uplink transmission.
  • the indication information of the modulation and TBS sequence number table used by the downlink transmission is carried by the RRC common signaling, for example, the indication information of the modulation and TBS sequence number table used by the downlink transmission passes the information element PDSCH- ConfigCommon is hosted.
  • the information element PDSCH-ConfigCommon is included in the broadcast signaling; or included in the signaling for reconfiguration of the RRC connection; or included in the signaling used for handover preparation.
  • the indication information of the modulation and TBS sequence number table used by the foregoing transmission is carried by RRC common signaling, for example, the modulation and the indication information of the TBS sequence number table used for the uplink transmission. It is carried by the information element PUSCH-ConfigCommon.
  • the information element PUSCH-ConfigCommon is included in the broadcast signaling; or included in the signaling for reconfiguration of the RRC connection; or included in the signaling used for handover preparation.
  • the indication information of the modulation and TBS sequence number table used by the downlink transmission is carried by RRC dedicated signaling, for example, the information of the modulation and TBS sequence number table used by the downlink transmission is determined by the information element PDSCH-ConfigDedicated. Hosted.
  • the information element PDSCH-ConfigDedicated is included in the initial setup signaling for the RRC connection; or in the signaling for reconfiguration of the RRC connection; or included in the signaling for reestablishment of the RRC connection. Or included in the signaling used for handover preparation.
  • the indication information of the modulation and TBS sequence number table used by the uplink transmission is carried by RRC dedicated signaling.
  • the information of the modulation and TBS sequence number table to be used for the uplink transmission is determined by the information element PUSCH-ConfigDedicated. -vl020 Bearer, or bearer by PUSCH-ConfigDedicatedSCell-r 10 information element.
  • the PUSCH-ConfigDedicated-vl020 information element is included in the initial setup signaling for the RRC connection, or included in the signaling for reconfiguration of the RRC connection, or included in the re-establishment for the RRC connection.
  • the information element PUSCH-ConfigDedicatedSCell-r 10 is included in the signaling for reconfiguration of the RRC connection, or included in the signal for handover preparation Order.
  • the indication information of the modulation and TBS sequence number table used by the downlink transmission and/or the uplink transmission is carried by the MAC signaling, the MAC signaling only includes the header information, or the MAC information includes the header information.
  • the header information includes a specified LCID, where the content information includes a modulation and TBS sequence number table to be used for uplink transmission and/or a modulation and TBS sequence number table used for downlink transmission.
  • the eNB of the embodiment of the present invention configures a modulation and TBS sequence number table used by the uplink transmission and/or downlink transmission for the UE by using RRC common signaling or RRC dedicated signaling or MAC signaling, so that the UE queries the corresponding table according to the received I MCS . Determining the TBS, and performing demodulation decoding of the downlink data or modulation coding of the uplink data according to the determined TBS, thereby ensuring normal configuration of the LTE system without increasing the number of CQI index and I MCS bits.
  • the embodiment of the present invention further provides a user equipment, as described in Embodiment 8 below.
  • the principle of solving the problem is similar to the method of Embodiment 6. Therefore, the specific implementation may refer to the method of Embodiment 6. Implementation, repetition will not be repeated.
  • An embodiment of the present invention provides a user equipment (UE). 16 is a schematic diagram of the composition of the UE. Referring to FIG. 16, the UE includes:
  • a first determining unit 161 which determines, according to the received modulation information of the base station and the indication information of the TBS sequence number table, a modulation and TBS sequence number table used for downlink transmission;
  • the second determining unit 162 determines, according to the modulation and TBS sequence number table used by the downlink transmission, a coded modulation scheme configured by the base station for the UE.
  • the demodulated decoding of the received downlink data is performed according to the TBS corresponding to the coded modulation scheme.
  • An embodiment of the present invention further provides a user equipment (UE). 17 is a schematic diagram of the composition of the UE. Referring to FIG. 17, the UE includes:
  • a first determining unit 171 which determines, according to the received modulation information of the base station and the indication information of the TBS sequence number table, a modulation and TBS sequence number table to be used for the uplink transmission;
  • the second determining unit 172 determines, according to the modulation and TBS sequence number table to be used for the uplink transmission, a coded modulation scheme configured by the base station for the UE. To encode and modulate the uplink data to be transmitted according to the TBS corresponding to the coded modulation scheme.
  • the indication information of the modulation and TBS number table to be used for the downlink transmission and/or the bearer manner of the indication information of the modulation and TBS number table to be used for the uplink transmission and Embodiment 1 The same as Embodiment 5, the contents of which are incorporated herein, and are not described herein again.
  • the embodiment of the present invention further provides a communication system, where the communication system includes the UE described in Embodiment 4 and the eNB described in Embodiment 3, or the communication system includes the UE described in Embodiment 8 and The eNB described in Embodiment 7.
  • 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 a computer to perform a channel quality indication (CQI) configuration method according to Embodiment 1 in the base station, Or the configuration method of the modulation and coding scheme (MCS) described in Embodiment 5 is performed.
  • CQI channel quality indication
  • MCS modulation and coding scheme
  • 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 perform a channel quality indication (CQI) configuration method according to Embodiment 1 in a base station, or performs implementation.
  • CQI channel quality indication
  • MCS modulation coding scheme
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a terminal device, the program causes the computer to perform the channel quality indication (CQI) described in Embodiment 2 in the terminal device.
  • CQI channel quality indication
  • MCS modulation coding scheme
  • An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a channel quality indication (CQI) configuration method according to Embodiment 2, or The configuration method of the modulation and coding scheme (MCS) described in Embodiment 6 is performed.
  • CQI channel quality indication
  • MCS modulation and coding scheme
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

本发明实施例提供了一种信道质量指示(CQI)的配置方法、调制编码方案配置方法和装置,其中,所述CQI的配置方法包括:基站(eNB)通过信道质量指示索引(CQI index)表格指示信息为UE配置CQI index表格,以便所述UE根据所述指示信息确定配置的CQI index表格,并利用配置的CQI index表格,根据计算的预编码矩阵指示(PMI)和秩指示(RI)计算CQI index。通过本发明实施例,在保持CQI index和IMCS比特数目不变的前提下,基站可以为不同的用户配置不同的'4比特CQI表格'和/或'调制和TBS序号表格'。由此,既不用增加CQI index和IMCS比特数目又能保证LTE系统的正常配置。

Description

信道质量指示的配置方法、 调制编码方案配置方法和装置 技术领域
本发明涉及通信领域, 尤其涉及一种信道质量指示 (CQI) 的配置方法、 调制编 码方案配置方法和装置。 背景技术
Small cell (小小区)是 LTE-A (Long Term Evolution- Advanced,增强的长期演进) 版本 12讨论中最热门的话题之一。
现阶段,移动通信网络运营商的运营成本中大部分花在了电费上。 电能主要消耗 在基站侧的运转上。研究表明,在覆盖面积相等的前提下,用若干小小区(Small cell) 代替一个宏小区 (Macro cell), 可以有效节省电力开销。 这主要是由于 Small cell的 基站功率小,产生的热能小,不需要或需要较少的冷却设备。此外,与宏站相比, Small cell还有成本低、 利于部署等特点。
在一些情况下, 例如室内环境, Small cell 中基站到达 UE (User Equipment, 用 户设备) 的信道包含直视径 (Line-of-sight), 且传输中所受干扰小, 传输信噪比较高。 良好的信号传播环境能够保证更高阶调制符号的正确传输, 从而有效提高频谱效率, 因此下一个版本的 LTE将会支持更高阶的星座调制方式, 如 256QAM调制。
为了更好的支持自适应编码调制传输, LTE标准支持灵活的码率和调制方式。首 先 UE会根据信道估计结果, 计算相应 PMI (Precoding Matrix Indicator, 预编码矩阵 指示符) 和 RI (Rank Indication, 秩指示) 信息, 并根据 UE自己的接收解调能力为 Wide Band(宽带)或者 Subband (子带)选择合适的 CQI index ( Channel quality indicator index, 信道质量指示符索引), 而后按照 LTE标准中约定的方式将上述信息反馈给基 站。 LTE共支持 16种 CQI index, 如表 1所示 (表 1为 3GPP标准 TS36.213中表格 7.2.3-1 )。 除 CQI index 0是用来指示' out of range'外, 其余的 15种 CQI index 分别对 应一种编码调制方案, 即一种调制方式 (modulation) 和一种信道编码的码率 (code rate)。 UE利用上行传输向基站反馈计算所得的 CQI index。 Wide Band的 CQI index 采用绝对传输方式由 4比特信息承载。 CQI信息 (包含 PMI、 RI和 CQI index) 可以 由物理上行控制信道 (PUCCH, Physical Uplink Control Channel) 或物理上行共享信 道 (PUSCH, Physical Uplink Shared Channel)承载传输。 表 1: 4比特 CQI表格 (4-bit CQI Table)
Figure imgf000004_0001
在获得 UE反馈的 CQI信息后,基站会根据实际调度和负载情况并参考 UE的反 馈信息对 UE进行调度和配置。基站会通过下行控制信道(PDCCH, Physical Downlink Control Channel ) ,指示 UE传输给它的下行数据所在的时频资源以及传输采用的编码 调制方案。 或者基站会通过下行控制信道, 指示 UE应该在哪个时频资源用何种编码 调制方案进行上行数据传输。这里, 编码调制方案是通过 5比特信息 ( IMCS )指示的。 除 PDCCH Format 3A以外(该 PDCCH Format专用于上行控制信道的功控指示), 其 余所有的 PDCCH Format都包含一个或两个 IMCS信息。 IMCS信息的个数与传输中传输 块(Transport Block, TB )的个数有关, 一次传输中至少有一个 TB, 至多有两个 TB。
UE在收到 IMCS信息后,会通过查表获得 ITBS序号和调制方式。如果接收到的 IMCS 是用于下行传输解调解码,则查询表 2 (其为 3GPP标准 TS36.213中表格 7.1.7.1 - 1 )。 如果收到的 IMCS是用于指示上行传输编码调制,则查询表 3 (其为 3GPP标准 TS36.213 中的表格 8.6.1 -1 )。 表 2: 用于 PDSCH的调制和 TBS序号表格
(Modulation and TBS index table for PDSCH)
Figure imgf000005_0001
表 3 : 用于 PUSCH的调制、 TBS索引以及冗余版本表
(Modulation, TBS index and redundancy version table for PUSCH)
Figure imgf000005_0002
6 2 6 0
7 2 7 0
8 2 8 0
9 2 9 0
10 2 10 0
11 4 10 0
12 4 11 0
13 4 12 0
14 4 13 0
15 4 14 0
16 4 15 0
17 4 16 0
18 4 17 0
19 4 18 0
20 4 19 0
21 6 19 0
22 6 20 0
23 6 21 0
24 6 22 0
25 6 23 0
26 6 24 0
27 6 25 0
28 6 26 0
29 1
reserved
30 2
(保留)
31 3 随后, UE可以通过查询 TBS表格 (Transport Block Size table, 传输块尺寸表), 根据 ITBS和传输资源的大小 (资源块 (RB, Resource Block) 的个数) 获得传输块的 信息比特的大小, 间接地获得编码码率。 作为示例, 表 4给出的仅是 1~10个 RB对 应的 TBS表格(来自 3GPP标准 TS36.213中表格 7.1.7.2.1 )。 其中, WPRB为 RB的个 数。 表 4: TBS表(尺寸 27x 110)
12 208 440 680 904 1 128 1352 1608 1800 2024 2280
13 224 488 744 1000 1256 1544 1800 2024 2280 2536
14 256 552 840 1 128 1416 1736 1992 2280 2600 2856
15 280 600 904 1224 1544 1800 2152 2472 2728 31 12
16 328 632 968 1288 1608 1928 2280 2600 2984 3240
17 336 696 1064 1416 1800 2152 2536 2856 3240 3624
18 376 776 1 160 1544 1992 2344 2792 3112 3624 4008
19 408 840 1288 1736 2152 2600 2984 3496 3880 4264
20 440 904 1384 1864 2344 2792 3240 3752 4136 4584
21 488 1000 1480 1992 2472 2984 3496 4008 4584 4968
22 520 1064 1608 2152 2664 3240 3752 4264 4776 5352
23 552 1 128 1736 2280 2856 3496 4008 4584 5160 5736
24 584 1 192 1800 2408 2984 3624 4264 4968 5544 5992
25 616 1256 1864 2536 31 12 3752 4392 5160 5736 6200
26 712 1480 2216 2984 3752 4392 5160 5992 6712 7480 从上述描述可以看出, CQI index和 IMCS在 LTE系统上下行传输中是非常重要的 指示信息。 CQI index采用 4比特信息承载, 目前最多可指示的十六种情况, 每一种 情况都有对应的编码调制方案。 IMCS由 5比特信息承载, 无论上行还是下行目前最多 可指示的三十二种情况,每一种情况都已有对应的编码调制方案。如果增加新的调制 方案, 例如 256QAM, 则 CQI index和 IMCS都必须增加 1比特, 否则沿用现有的方式 不能够指示采用 256QAM调制的编码调制方案。
然而,发明人在实现本发明的过程中发现,在现有的传输方式中,如果 CQI index 和 IMCS均增加 1 比特, 相应地每次传输会增加 10%左右的负载, 这有可能会降低相 关的上行和下行控制信息传输可靠性,例如在物理传输资源不变的情况下,增加未编 码信息, 会减小编码校验冗余比特, 从而降低了编码对信息的保护力度。
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信道质量指示 (CQI) 的配置方法、 调制编码 方案配置方法和装置, 以在增加新的调制方案时, 能在不用增加 CQI index和 IMCS比 特数目的前提下, 保证 LTE系统的正常配置。
根据本发明实施例的第一方面, 提供了一种信道质量指示 (CQI) 的配置方法, 其中, 所述方法包括: 基站 (eNB) 通过信道质量指示索引 (CQI index) 表格指示信息为 UE配置 CQI index表格, 以便所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置 的 CQI index表格,根据计算的预编码矩阵指示(PMI)和秩指示(RI)计算 CQI index^ 根据本发明实施例的第二方面, 提供了一种信道质量指示 (CQI) 的配置方法, 其中, 所述方法包括:
UE根据信道估计结果计算 PMI和 RI;
所述 UE根据接收到的基站发送的 CQI index表格指示信息确定配置的 CQI index 表格;
所述 UE利用配置的 CQI index表格, 根据所述 PMI和 RI计算 CQI index。
根据本发明实施例的第三方面, 提供了一种调制编码方案 (MCS) 的配置方法, 其中, 所述方法包括:
eNB通过调制和传输块大小 (TBS) 序号表格指示信息为 UE配置下行传输所采 用的调制和传输块大小 (TBS) 序号表格, 和 /或上行传输需使用的调制和 TBS序号 表格, 以便所述 UE 在接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序号表格和 /或所述上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的 编码调制方案。
根据本发明实施例的第四方面, 提供了一种调制编码方案 (MCS) 的配置方法, 其中, 所述方法包括:
UE根据接收到的基站发送的调制和 TBS序号表格指示信息确定下行传输所采用 的调制和 TBS序号表格;
所述 UE根据所述下行传输所采用的调制和 TBS序号表格确定基站为其配置的编 码调制方案。
根据本发明实施例的第五方面, 提供了一种调制编码方案 (MCS) 的配置方法, 其中, 所述方法包括:
UE根据接收到的基站发送的调制和 TBS序号表格指示信息确定上行传输需使用 的调制和 TBS序号表格;
所述 UE根据所述上行传输需使用的调制和 TBS序号表格确定基站为其配置的编 码调制方案。
根据本发明实施例的第六方面,提供了一种基站,用于为 UE配置信道质量指示, 其中, 所述基站包括:
配置单元, 其通过 CQI index表格指示信息为 UE配置 CQI index表格, 以便所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置的 CQI index表格, 根 据计算的预编码矩阵指示 (PMI) 和秩指示 (RI ) 计算 CQI indeX
根据本发明实施例的第七方面,提供了一种用户设备,其中,所述用户设备包括: 第一计算单元, 其根据信道估计结果计算 PMI和 RI;
确定单元, 其根据接收到的基站发送的 CQI index表格指示信息确定配置的 CQI index表格;
第二计算单元, 其利用所述确定单元确定的基站为所述用户配置的 CQI index表 格, 根据所述 PMI和 RI计算 CQI index。
根据本发明实施例的第八方面,提供了一种基站,用于为 UE配置调制编码方案, 其中, 所述基站包括:
配置单元,其通过调制和 TBS序号表格指示信息为 UE配置下行传输所采用的调 制和 TBS序号表格, 和 /或上行传输需使用的调制和 TBS序号表格, 以便所述 UE在 接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序号表格和 /或所述 上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的编码调制方案。
根据本发明实施例的第九方面,提供了一种用户设备,其中,所述用户设备包括: 第一确定单元,其根据接收到的基站发送的调制和 TBS序号表格指示信息确定下 行传输所采用的调制和 TBS序号表格;
第二确定单元,其根据所述下行传输所采用的调制和 TBS序号表格确定基站为其 配置的编码调制方案。
根据本发明实施例的第十方面,提供了一种用户设备,其中,所述用户设备包括: 第一确定单元,其根据接收到的基站发送的调制和 TBS序号表格指示信息确定上 行传输需使用的调制和 TBS序号表格;
第二确定单元,其根据所述上行传输需使用的调制和 TBS序号表格确定基站为其 配置的编码调制方案。
根据本发明实施例的其他方面, 提供了一种通信系统, 其中, 所述通信系统包括 第七方面所述的用户设备以及第六方面所述的基站, 或者,所述通信系统包括第九方 面所述的用户设备以及第八方面所述的基站, 或者,所述通信系统包括包括第十方面 所述的用户设备以及第八方面所述的基站。
根据本发明实施例的其他方面, 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所述基站中执行第一方面所述的信道质量指示
(CQI) 的配置方法, 或者执行第三方面所述的调制编码方案 (MCS) 的配置方法。 根据本发明实施例的其他方面, 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第一方面所述的信道质量指示 (CQI) 的配置方法, 或者执行第三方面所述的调制编码方案 (MCS) 的配置方法。 根据本发明实施例的其他方面, 提供了一种计算机可读程序, 其中当在终端设备 中执行该程序时,该程序使得计算机在所述终端设备中执行第二方面所述的信道质量 指示(CQI)的配置方法, 或者执行第四方面或第五方面所述的调制编码方案(MCS) 的配置方法。
根据本发明实施例的其他方面, 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中的设备中执行第二方面所述的信道质量指示 (CQI) 的配置方法, 或者执行第四方面或第五方面所述的调制编码方案 (MCS) 的 配置方法。
本发明实施例的有益效果在于: 通过本实施例的方法, 在保持 CQI index和 IMCS 比特数目不变的前提下, 基站可以为不同的用户配置不同的 '4 比特 CQI表格' 和 / 或 '调制和 TBS序号表格'。 由此, 既不用增加 CQI index和 IMCS比特数目又能保证 LTE系统的正常配置。
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、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明 参照以下的附图可以更好地理解本发明的很多方面。附图中的部件不是成比例绘 制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附图 中对应部分可能被放大或缩小。在本发明的一个附图或一种实施方式中描述的元素和 特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在 附图中, 类似的标号表示几个附图中对应的部件, 并可用于指示多于一种实施方式中 使用的对应部件。 在附图中:
图 1是本发明实施例 1的信道质量指示 (CQI) 的配置方法的流程图; 图 2是只有头信息的 MAC信令的组成示意图;
图 3是具有头信息和内容信息的 MAC信令的头信息的组成示意图;
图 4是具有头信息和内容信息的 MAC信令的内容信息的组成示意图; 图 5是本发明实施例 2的信道质量指示 (CQI) 的配置方法的流程图; 图 6是对应图 1的方法的 eNB的组成示意图;
图 7是对应图 5的方法的 UE的组成示意图;
图 8是本发明实施例 5的调制编码方案 (MCS) 的配置方法的流程图; 图 9是具有头信息和内容信息的 MAC信令的头信息的组成示意图;
图 10是具有头信息和内容信息的 MAC信令的内容信息的一个实施例的组成示 意图;
图 11是具有头信息和内容信息的 MAC信令的内容信息的另外一个实施例的组 成示意图;
图 12是具有头信息和内容信息的 MAC信令的内容信息的另外一个实施例的组 成示意图;
图 13是本发明实施例 6的调制编码方案 (MCS) 的配置方法的一个实施例的流 程图;
图 14是本发明实施例 6的调制编码方案 (MCS) 的配置方法的另外一个实施例 的流程图;
图 15是对应图 8的方法的 eNB的组成示意图;
图 16是对应图 13的方法的 UE的组成示意图;
图 17是对应图 14的方法的 UE的组成示意图。 具体实施方式
参照附图, 通过下面的说明书, 本发明实施例的前述以及其它特征将变得明显。 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 LTE系统中的 CQI index表 格和调制和 TBS序号表格的配置为例进行说明, 但可以理解, 本发明实施例并不限 于上述系统,对于涉及 CQI index表格和调制和 TBS序号表格的配置的其他系统均适 用。
在本发明实施例中, 为了支持更高阶的调制格式, 例如 256QAM调制, 标准中 可以增加一个新的 "CQI index表格"(对应表一), 该表格可以减少原有三种调制方 式(QPSK, 16QAM和 64QAM) 的编码调制水平(表现为 4比特 CQI表格中行的形 式), 并增加与 256QAM调制相应的编码调制水平, 总数仍然为 16。相应地, 也可以 增加一个新的用于 PDSCH的 "调制和 TBS序号表格"(对应表二)和 /或一个新的用 于 PUSCH的 "调制和 TBS序号表格"(对应表三) 与新的 "CQI index表格"对应。 此外, 传输块大小的表格(参见表 4)需要增加若干行, 以便支持新增的 256QAM调 制的编码调制方案。 由此, "4比特 CQI表格"和 "调制和 TBS序号表格"都有两个 表格可选,其一为现有标准中的相应表格;其二为专门为信道质量很高的 UE设计的, 可以支持 256QAM调制的用户使用的表格, 在本发明实施例中简称为新表格。
通过本实施例的方法, 在保持承载 CQI index和 IMCS的比特数目不变的前提下, 基站为 UE配置不同的 CQI index表格和 /或调制和 TBS序号表格, 以支持更高阶的 调制格式。
为使本实施例的方法更加清楚易懂,以下结合附图和具体实施例对本实施例的方 法进行说明。
实施例 1
本发明实施例提供了一种信道质量指示 (CQI) 的配置方法。 图 1是该方法的流 程图, 请参照图 1, 该方法包括:
步骤 101 : 基站(eNB)通过信道质量指示索引 (CQI index)表格指示信息为 UE 配置 CQI index表格, 以便所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置的 CQI index表格, 根据计算的预编码矩阵指示 (PMI) 和秩指示 (RI) 计算 CQI index 在本实施例的一个实施方式中,上述 CQI index指示信息可以通过 RRC信令承载, 例如, 该 RRC信令可以由用于配置 PUCCH传输的公共信息元承载, 称为 RRC公共 信令; 也可以由用于配置 PUCCH传输的用户专用信息元承载, 称为 RRC专用信令。 以下通过示例一和示例二对由 PUCCH-ConfigCommon信息元(RRC公共信令)承载 上述 CQI index表格指示信息的方式进行说明。
示例一
在本示例中, eNB可以在 RRC层的公共信令中添加用于配置 " CQI index表格" 的信令。 由此 "调制和 TBS序号表格"也相应地被隐性配置, 即新旧 " CQI index表 格"和新旧 "调制和 TBS序号表格"的使用具有一致性。 这里, 由 RRC公共信令配 置的 " CQI index表格"和相应的 "调制和 TBS序号表格"可以只用于下行传输, 也 可以既用于下行传输也用于上行传输。 这种方法配置的 " CQI index表格"和相应的 "调制和 TBS序号表格"可以只用于 PCell (主小区), 也可以既用于 PCell也用于 SCell (次小区)。
其中, 由于采用了 RRC公共信令, 这种方法配置的 " CQI index表格"和 "调制 和 TBS序号表格"是小区专用 (Cell-specific) 的, 即小区中所有用户都采用该表格。
在本示例中, 通过在信息元 (Information Element) PUCCH-ConfigCommon 中添 加新的信令用于指示配置的 CQI index表格, 以下为信息元 PUCCH-ConfigCommon 的组成。
Figure imgf000013_0001
其中, "NewCQITable-rl2 " 为新增的信令。 该信令为可选配置 (OPTIONAL ) , 如果对应的 "ENUMERATED {true} "则配置使用新 " CQI index表格", 如果该信令 未被包含在信息元 PUCCH-ConfigCommon 中则配置使用原 " CQI index表格"。其中, "Need OR" 的含义与现有标准相同, 在此不再说明, 下同。
在本示例的一个实施方式中, 该信息元 PUCCH-ConfigCommon可以包含于广播 信令中, 由广播信令承载。 例如: 信息元 PUCCH-ConfigCommon可以被包含在信息 兀 adioResourceConfigCommonSIB 中, 而信息兀 adioResourceConfigCommonSIB 被包含在信息元 SystemInformationBlockType2中, 因此用于配置 CQI index表格的信 息可以由广播信令承载。
在本示例的另外一个实施方式中, 该信息元 PUCCH-ConfigCommon也可以包含 于用于 RRC连接的重配置的信令中, 由 RRC连接的重配置的信令承载。例如: 信息 元 PUCCH-ConfigCommon 可以可选地包含在信息元 adioResourceConfigCommon 中。 而信息元 adioResourceConfigCommon被包含在信息元 MobilityControlInfo中。 信息元 MobilityControlInfo 通常用于切换, 被可选地包含在信息元 RRCConnection econfiguration-r8-IEs 中 。 信 ;¾ 兀
RRCConnection econfiguration-r8 -IEs被包含于信肩、兀 RRCConnectionReconfiguration 中,而信息元 RRCConnectionReconfiguration则是用于 RRC连接的重配置, 因此用于 配置 CQI index表格的信息可以由用于 RRC连接的重配置的信令承载。
通过本示例可以看出, 如果 "CQI index表格"按照本实施例描述的方法进行配 置 (相应的 "调制和 TBS序号表格"被间接配置), 则这种配置是小区专用的。 配置 信息可以通过广播信令进行配置, 也可以通过 RRC连接的重配置信令进行配置。 这 种情况下, 一个小区中所有 UE的 "CQI index表格"和 "调制和 TBS序号表格" 的 配置均相同。
示例二
在 LTE Release 11及 Release 10中, 仅有 PCell可以向用户发送 PUCCH, SCell 不能向用户发送 PUCCH。在 Release 12中, 如果 SCell也能支持 PUCCH传输, 则也 可以按照本实施例的方法配置 "CQI index表格"和 "调制和 TBS序号表格"。 在本 示例中, eNB可以在 RRC层公共信令中添加用于配置 SCell使用的" CQI index表格" 的相应信令。 相应的 "调制和 TBS序号表格"也被间接配置。 这种方法配置的 "CQI index表格"和相应的 "调制和 TBS序号表格"可以只用于下行传输, 也可以既用于 下行传输也用于上行传输。
同样的, 由于采用了 RRC公共信令, 这种方法配置的 " CQI index表格"和 "调 制和 TBS序号表格"是小区专用 (Cell-specific) 的, 即所有以该小区为 SCell的用 户都采用该表格。
在本示例中, 通过在信息元 PUCCH-ConfigCommon 中添加新的用于指示配置的 CQI index表格的信令, 以下为该添加了上述信令的信息元 PUCCH-ConfigCommon 的组成。 :. .-:: : : 卜 卜::
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〕 {::¾¾¾(^::}::: 其中, "NewCQITable-rl2 " 为新增的信令。 该信令为可选配置, 如果对应的 "ENUMERATED {true} "则配置使用新 "CQI index表格", 如果该信令未被包含在 信息元 PUCCH-ConfigCommon 中则配置使用原 "CQI index表格"。
在本示例中,该信息元 PUCCH-ConfigCommon可以包含于用于 RRC连接的重配 置的信令中, 由 RRC连接的重配置的信令承载; 也可以包含于用于切换准备的信令 中, 由用于切换准备的信令承载。
例 如 , 该 信 息 元 PUCCH-ConfigCommon 可 以 被包 含在 信 息 元 adio esourceConfigCommonSCell-rlO中, 如下所示: --:■;; : 】
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在本实施方式中, 信息元 RadioResourceConfigCommonSCell-rlO可以被包含在信 息元 SCellToAddMod-rlO 中。 一个或多个信息元 SCellToAddMod-rlO 组成信息元 SCellToAddModList-rlO。
其 中 , 信 息 元 SCellToAddModList-rlO 可 以 被 包 含 在 信 息 元 RRCConnection econfiguration-v 1020-IEs 中 。 信 息 元
RRCConnection econfiguration-v 1020-IEs 又被层层包裹, 最终被包含在信息元 RRCConnectionReconfiguration中。信息兀 RRCConnectionReconfiguration被用于 RRC 连接的重配置。 而信息元 RRCConnectionReconfiguration-vl 020-IEs中所包含的信息, 则用于重配置 SCell。 因此用于配置 CQI index表格的信息可以由用于 RRC连接的重 配置的信令承载。
其中, 信息元 SCellToAddModList-rlO 也可以被包含在用于切换准备的信息元 AS-Config中。因此用于配置 CQI index表格的信息可以由用户切换准备的信令承载。
通过本示例可以看出, 如果 "CQI index表格"按照本实施例描述的方法进行配 置 (相应的 "调制和 TBS序号表格"被间接配置), 则这种配置是小区专用的, 即所 有以该小区为 SCell的用户都采用该表格。 配置信息可以在对 SCell进行配置的时候 通过 RRC连接重配置的信令进行配置。 也可以在用户切换准备时, 在源基站和目标 基站之间交互, 也即通过切换准备的信令进行配置。
以下通过示例三对由 PUCCH-ConfigDedicated-rl2信息元 (RRC专用信令) 承载 上述 CQI index 表格指示信息的方式进行说明, 并通过示例四对由 PUCCH-ConfigDedicatedSCell-rl2信息元(RRC专用信令)承载上述配置的 CQI index 表格的信息的方式进行说明。
示例三
在本示例中, eNB可以在 RRC层专用信令中添加用于配置 " CQI index表格"的 信令。由此,"调制和 TBS序号表格"也相应地被隐性配置。这种方法配置的" CQI index 表格"和相应的 "调制和 TBS序号表格"可以只用于下行传输, 也可以既用于下行 传输也用于上行传输。 这种方法配置的 " CQI index表格"和相应的 "调制和 TBS序 号表格"可以只用于 PCell, 也可以既用于 PCell也用于 SCell
其中, 由于采用了 RRC专用信令, 这种方法配置的 " CQI index表格"和相应的
"调制和 TBS序号表格"是用户专用(UE-specific)的, 即小区中的每个用户都根据 自己的配置采用相应的表格。
在本示例中, 可以在信息元 PhysicalConfigDedicated中添加新的用于指示配置的 CQI index表格的信息元。 例如, 在信息元 PhysicalConfigDedicated中添加的新的信 息元 PUCCH-ConfigDedicated-rl2用于指示配置的 CQI index表格。
以下为信息元 PUCCH-ConfigDedicated-rl2的组成:
Figure imgf000016_0001
其中, "NewCQITable-rl2 " 的含义与前述相同, 在此省略说明。
以下为添加了上述信息元 PUCCH-ConfigDedicated-rl2 之后的信息元 PhysicalConfigDedicated的组成。 其中, "Need ON"的含义与现有标准相同, 在此不 再说明, 下同。 ;
在本示例的一个实施方式中, 信息元 PhysicalConfigDedicated 可以包含于用于 RRC连接的初始建立的信令中, 例如: 信息元 PhysicalConfigDedicated被包含在信息 兀 adio esourceConfigDedicated中。信息兀 adio esourceConfigDedicated被包含在 信息元 RRCConnectionSetup-r8-IEs 中。信息元 RRCConnectionSetup-r8-IEs被包含在 RRCConnectionSetu 中。信息元 RRCConnectionSetup用于 RRC连接的初始建立。因 此, 信息元 PhysicalConfigDedicated可以由用于 RRC连接的初始建立的信令承载。
在本示例的另外一个实施方式中, 信息元 PhysicalConfigDedicated也可以包含于 用于 RRC连接的重配置的信令中, 例如: 信息元 PhysicalConfigDedicated被包含在 信息兀 adioResourceConfigDedicated中。信息兀 RadioResourceConfigDedicated用于 切换, 被可选地包含在信息元 RRCConnectionReconfiguration-r8-IEs 中。 信息元 RRCConnection econfiguration-r8 -IEs被包含于信肩、兀 RRCConnectionReconfiguration 中。 信息元 RRCConnectionReconfiguration用于 RRC 连接的重配置。 因此信息元 PhysicalConfigDedicated可以由用于 RRC连接的重配置的信令承载。
在本示例的另外一个实施方式中, 信息元 PhysicalConfigDedicated还可以包含于 用于 RRC连接的重建立的信令中, 例如: 信息元 PhysicalConfigDedicated被包含在 信息兀 adioResourceConfigDedicated中。信息兀 adioResourceConfigDedicated被包 含 在 信 息 元 CConnection eestablishment-r8-IEs 中 。 信 息 元 RRCConnection eestablishment-r8-IEs被包含在信息元 RCConnectionReestablishment 中。 信息元 RRCConnectionReestablishment用于 RRC 连接的重建立。 因此信息元 PhysicalConfigDedicated可以由用于 RRC连接的重建立的信令承载。
在本示例的另外一个实施方式中, 信息元 PhysicalConfigDedicated还可以包含于 用于切换准备的信令中, 例如: 信息元 PhysicalConfigDedicated 被包含在信息元 RadioResourceConfigDedicated中。 信息元 adioResourceConfigDedicated被包含在信 息元 AS-Config 中 。 信息元 AS-Config 用于切换准备。 因此信息元 PhysicalConfigDedicated可以由用于切换准备的信令承载。
通过本示例可以看出, 如果 " CQI index表格"按照本实施例描述的方法进行配 置 (相应的 "调制和 TBS序号表格"被间接配置), 则这种配置是 UE专用的, 即每 个 UE按照自己的配置信息采用相应的表格。 配置信息可以在 RRC连接建立时进行 配置,可以在 RRC连接重配置时进行配置,还可以在 RRC连接重新建立时进行配置。 并可以在用户切换准备时, 在源基站和目标基站之间交互。
示例四
在本示例中, 与示例二类似, 在 Release 12中, 如果 SCell也能支持 PUCCH传 输,则也可以按照本实施例的方法配置 " CQI index表格"和"调制和 TBS序号表格"。 例如, eNB可以在 RRC层专用信令中添加用于配置 " CQI index表格"的信令。 相应 的 "调制和 TBS序号表格"被间接配置。 这种方法配置的 " CQI index表格"和相应 的 "调制和 TBS序号表格"可以只用于下行传输, 也可以既用于下行传输也用于上 行传输。
同样的, 由于采用了 RRC专用信令, 这种方法配置的 " CQI index表格"和 "调 制和 TBS序号表格"是用户专用 (UE-specific)的, 即每个用户都根据自己的配置采 用相应的表格。
在本示例中, 可以在信息元 PhysicalConfigDedicatedSCell-rlO 中添加新的用于指 示配置的 CQI index表格的信令, 例如, 在信息元 PhysicalConfigDedicatedSCell-rlO 中添加新的信息元 PUCCH-ConfigDedicatedSCell-rl2用于指示配置的 CQI index表格。
以下为信息元 PUCCH-ConfigDedicatedSCell-rl2的组成:
Figure imgf000018_0001
其中, "NewCQITable-rl2 " 的含义与前述相同, 在此省略说明。
以 下 为 添 加 了 信 息 元 PUCCH-ConfigDedicatedSCell-rl2 的 信 息 元
PhysicalConfigDedicatedSCell-rlO的组成。
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:撫幌纖鍾:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::^ 在本示例的一个实施方式中, 信息元 PhysicalConfigDedicatedSCell-rlO可以包含 于用于 RRC连接的重配置的信令中, 例如: 信息元 PhysicalConfigDedicatedSCell-rlO 被 包 含 在 信 息 元 RadioResourceConfigDedicatedSCell-rlO 中 。 信 息 元 adio esourceConfigDedicatedSCell-rlO被可选地包含在 SCellToAddMod-rlO中。 一 个或多个信息元 SCellToAddMod-rlO 组成信息元 SCellToAddModList-rlO。 信息元 SCellToAddModList-rlO被包含在信息元 RRCConnectionReconfiguration-vl020-IEs中。 信息元 RRCConnectionReconfiguration-vl020-IEs又被层层包裹,最终被包含在信息元 RRCConnectionReconfiguration中。信息兀 RRCConnectionReconfiguration被用于 RRC 连接重配置。而信息元 RRCConnectionReconfiguration-vl020-IEs中所包含的信息则用 于重配置 SCell。 因此信息元 PhysicalConfigDedicatedSCell-rlO可以由用于 RRC连接 的重配置的信令承载。
在本示例的另外一个实施方式中, 信息元 PhysicalConfigDedicatedSCell-rlO可以 包含于用于切换准备的信令中, 例如: 信息元 PhysicalConfigDedicatedSCell-rlO被包 含 在 信 息 元 RadioResourceConfigDedicatedSCell-rlO 中 。 信 息 元 adio esourceConfigDedicatedSCell-rlO被可选地包含在 SCellToAddMod-rlO中。 一 个或多个信息元 SCellToAddMod-rlO 组成信息元 SCellToAddModList-rlO。 信息元 SCellToAddModList-rlO被包含在用于切换准备的信息元 AS-Config中。 因此信息元 PhysicalConfigDedicatedSCell-rlO可以由用于切换准备的信令承载。
通过本示例可以看出, 如果 "CQI index表格"按照本实施例描述的方法进行配 置 (相应的 "调制和 TBS序号表格"被间接配置), 则这种配置是用户专用的, 即每 个用户都根据自己的配置采用相应的表格。配置信息可以在对 SCell进行配置的时候 通过 RRC连接重配置信令进行配置。 并可以在用户切换准备时, 在源基站和目标基 站之间交互。
在示例一到示例四的说明中, 是以可用的候选表格只有一个(也即除了标准提供 的表格以外只有一个候选的新表格)为例, 但本实施例并不以此作为限制, 当可用的 候选表格为多个时, 也即标准中增加了多个 CQI index表格以及多个对应的调制和 TBS序号表格, eNB也可以通过上述 RRC公共信令或者上述 RRC专用信令指示相 应的表格序号, 例如使新增的信令为以下形式:
NewCQITable-rl2 ENUMERATED {0,1,2,3}
或者
NewCQITable-rl2 ENUMERATED {0,1,2,3} Optional Need ON 在本实施例的另外一个实施方式中, 上述 CQI index表格指示信息也可以通过介 质访问控制(MAC)信令承载。 以下通过示例五和示例六对通过 MAC信令承载上述 CQI index表格指示信息的方式进行说明。
示例五
在本示例中, 如果标准中仅支持两种 " CQI index表格"(相应地, 支持两种 "调 制和 TBS序号表格"), 则可以利用一个只有头信息的 MAC信令来指示 CQI index表 格, 该头信息中包含了指定的 LCID。 如果 eNB为 UE配置了该 MAC信令, 则表示 使用其中一种 CQI index表格, 例如新表; 如果 eNB没有为 UE配置该 MAC信令, 则表示使用其中另外一种 CQI index表格, 例如旧表。
图 2是根据本实施例的方法的只有头信息的 MAC信令的组成示意图, 如图 2所 示, eNB利用一个带有指定 LCID的 MAC PDU subheader (头信息)来定义 CQI index Table Command MAC control element。 其中, "R"为保留比特, 设置为 0; "E"为扩 展域。 扩展域是一个标识, 用来指示在 MAC Header中是否有其它的域, E设置为 1 表示至少有一个其它的 R/R/E/LCID域, E设置为 0表示有一个 MAC SDU、一个 MAC control element或者 padding starts在下一个字节; "LCID"表征相应的 MAC CE 是 CQI index Table Command MAC CE。
在本示例的一个实施方式中,通过是否配置该 CQI index Table Command MAC CE (MAC信令)来指示选用哪个 CQI index表格。例如,如果 eNB为 UE配置了该 CQI index Table Command MAC CE,则表示该 UE在下行传输或者下行传输和上行传输中 使用新的 "CQI index表格", 否则使用原 "CQI index表格"。 其中, 当配置了上述 CQI index Table Command MAC CE 时, "调制和 TBS序号表格"也相应的被间接配 置。
示例六
在本示例中, 如果标准中支持大于两种 " CQI index表格"(相应地, 支持大于两 种"调制和 TBS序号表格"),则可以利用一个包含头信息和内容信息的 MAC信令来 指示 CQI index表格, 与示例五类似, 该头信息中包含了一个指定的 LCID, 用于指 示该 MAC信令是用于指示 CQI index表格; 该内容信息中包含配置的 CQI index表 格的序号。
图 3是根据本实施例的方法的 MAC信令的头信息的组成示意图, 如图 3所示, eNB利用一个带有指定 LCID的 MAC PDU subheader定义 CQI index Table Command MAC control element。 其中, "R"为保留比特, 设置为 "0"; "E"为扩展域, 扩展域 是一个标识, 用来指示在 MAC Header中是否有其它的域, E设置为 1表示至少有一 个其它的 R/R/E/LCID域, E设置为 0表示有一个 MAC SDU、一个 MAC control element 或者 padding starts在下一个字节; "LCID"表征相应的 MAC CE 是 CQI index Table Command MAC CE。
图 4是根据本实施例的方法的 MAC信令的内容信息的组成示意图,如图 4所示, 该 MAC control element (内容信息)为固定长度,由一个如图 4所示的一个字节 (octet) 定义。 其中, "R"为保留比特, 设置为 0; "CQI Idx Tab"域用来指示基站为 UE配 置的 "CQI index表格" 的序号, 这个域的长度由可用表格的总数决定, 假设可用表 格的数目为 x, 则这个域所占比特数目为 log2(x) ; 除 CQI Idx Tab域所占比特以外的 比特为 R比特, 即 R比特共用 8 -log2(x)个。
通过本发明实施例的方法, eNB通过 RRC公共信令或者 RRC专用信令或者 MAC 信令为 UE配置 CQI index表格, 以便 UE根据 eNB为其配置的 CQI index表格确定 CQI index, 并反馈 CQI信息, 由此, 既不用增加 CQI index和 IMCS比特数目又能保 证 LTE系统的正常配置。
实施例 2
本发明实施例还提供了一种信道质量指示 (CQI) 的配置方法, 该方法是与实施 例 1的方法对应的 UE侧的处理。 图 5是该方法的流程图, 请参照图 5, 该方法包括: 步骤 501 : UE根据信道估计结果计算 PMI和 RI;
其中, 在 UE接收下行数据或者进行上下数据传输的过程中, UE会按照常规的 方法进行信道估计, 并根据信道估计的结果计算 PMI和 RI。 其处理过程与现有技术 相同, 在此不再赘述。
步骤 502:所述 UE根据接收到的基站发送的 CQI index表格指示信息确定基站为 其配置的 CQI index表格;
其中,当 eNB按照实施例 1的方法或者按照实施例 5的方法为 UE配置了需要使 用的 CQI index表格时, UE会根据接收到的承载上述配置的 CQI index表格的信息的 信令(例如 RRC公共信令或者 RRC专用信令或者 MAC信令)确定需要使用的配置 的 CQI index表格。 其中, 对于承载上述配置的 CQI index表格的信息的信令的格式和承载方式已经 在实施例 1中或者在实施例 5中做了详细的说明,其内容被合并于此,在此不再赘述。
步骤 503:所述 UE利用配置的 CQI index表格,根据所述 PMI和 RI计算 CQI index。 其中, 当确定了需要使用的 CQI index表格后, UE即可按照常规方法计算 CQI indeX。 其处理过程与现有技术相同, 在此不再赘述。
通过本实施例的方法, 当标准中新增了支持更高阶调制的 CQI index表格时, UE 能够基于新的表格计算 CQI index, 并将计算出的 CQI信息 (包括 CQI index和 PMI 以及 RI)反馈给基站, 由此基站可以根据实际调度和负载情况并参考 UE反馈的 CQI 信息对 UE进行调度和配置。 由此, 不仅可以支持更高阶的调制方式, 还能保证 LTE 系统的正常配置。
本发明实施例还提供了一种基站, 如下面的实施例 3所述, 由于该基站解决问题 的原理与实施例 1的方法类似, 因此其具体的实施可以参照实施例 1的方法的实施, 重复之处不再赘述。
实施例 3
本发明实施例提供了一种基站(eNB)。图 6是该基站的组成示意图,请参照图 6, 该基站包括:
配置单元 61, 其通过 CQI index表格指示信息为 UE配置 CQI index表格, 以便 所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置的 CQI index表 格, 根据计算的预编码矩阵指示 (PMI) 和秩指示 (RI) 计算 CQI indeX
与实施例 1 的示例一和示例二类似, 在一个实施方式中, 所述配置单元 61通过
RRC信令承载所述 CQI index表格指示信息, 其中, 所述配置单元可以通过用于配置 PUCCH传输的公共信息元承载所述 RRC信令, 例如, 所述 CQI index表格指示信息 通过信息元 PUCCH-ConfigCommon承载。其中,所述信息元 PUCCH-ConfigCommon 包含于广播信令中; 或者包含于用于 RRC连接的重配置的信令中; 或者包含于用于 切换准备的信令中。
与实施例 1 的示例三和示例四类似, 在一个实施方式中, 所述配置单元 61通过 RRC信令承载所述 CQI index表格指示信息, 其中, 所述配置单元可以通过用于配置 PUCCH传输的用户专用信息元承载所述 RRC信令, 例如, 所述 CQI index表格指示 信息通过信息元 PUCCH-ConfigDedicated-rl2承载; 或者所述 CQI index表格的信息 通 过 信 息 元 PUCCH-ConfigDedicatedSCell-rl2 承 载 。 其 中 , 所 述 PUCCH-ConfigDedicated-rl2信息元可以包含于用于 RRC连接的初始建立的信令中; 或者可以包含于用于 RRC连接的重配置的信令中;或者可以包含于用于 RRC连接的 重建立的信令中; 或者可以包含于用于切换准备的信令中。 其中, 所述 PUCCH-ConfigDedicatedSCell-rl2信息元可以包含于用于 RRC连接的重配置的信令 中; 或者可以包含于用于切换准备的信令中。
与实施例 1的示例五类似, 在一个实施方式中, 当标准中配置了两个 CQI index 表格 (对应的配置了两个调制和 TBS序号表格) 时, 上述配置单元 61通过 MAC信 令承载上述 CQI index表格指示信息, 例如, 通过具有特定指示信息的 MAC信令指 示 CQI index表格, 例如只有头信息的 MAC信令, 所述头信息中包含指定的 LCID。 由此, UE可以根据是否接收到具有特定指示信息的 MAC信令确定 eNB为其配置的
CQI index表格 (也即 UE需要使用的 CQI index表格)。
与实施例 1的示例六类似, 在一个实施方式中, 当标准中配置了两个以上的 CQI index表格 (相应的配置了两个以上的调制和 TBS序号表格) 时, 上述配置单元 61 通过 MAC信令承载上述 CQI index表格指示信息, 例如, 通过具有特定指示信息的
MAC信令指示 CQI index表格,例如具有头信息和内容信息的 MAC信令,所述头信 息中包含指定的 LCID, 所述内容信息中包含配置的 CQI index表格的序号。 由此,
UE可以根据接收到的具有特定指示信息的 MAC信令确定配置的 CQI index表格(也 即 UE需要使用的 CQI index表格)。
通过本实施例的 eNB通过 RRC公共信令或者 RRC专用信令或者 MAC信令为
UE配置其需要使用的 CQI index表格, 可以支持多个表格, 也即标准中可以新增支 持更高阶调制的 CQI index表格。 由此, 不仅可以支持更高阶的调制方式, 还能保证
LTE系统的正常配置。
本发明实施例还提供了一种用户设备, 如下面的实施例 4所述, 由于该用户设备 解决问题的原理与实施例 2的方法类似,因此其具体的实施可以参照实施例 2的方法 的实施, 重复之处不再赘述。
实施例 4
本发明实施例提供了一种用户设备 (UE)。 图 7是该用户设备的组成示意图, 请 参照图 7, 该基站包括: 第一计算单元 71, 其根据信道估计结果计算 PMI和 RI;
确定单元 72, 其根据接收到的基站发送的 CQI index表格指示信息确定基站为上 述 UE配置的 CQI index表格;
其中, 基站发送的 CQI index表格指示信息可以通过实施例 1的方法配置也可以 通过实施例 5的方法配置, 在此不再赘述。
第二计算单元 73,其利用所述确定单元 72确定的基站为所述 UE配置的 CQI index 表格, 根据所述第一计算单元 71计算出的 PMI和 RI计算 CQI indeX
与实施例 1 的示例一和示例二类似, 在一个实施方式中, 所述配置单元 61通过 RRC信令承载所述 CQI index表格指示信息, 其中, 所述配置单元可以通过用于配置 PUCCH传输的公共信息元承载所述 RRC信令, 例如, 所述 CQI index表格指示信息 通过信息元 PUCCH-ConfigCommon承载。其中,所述信息元 PUCCH-ConfigCommon 包含于广播信令中; 或者包含于用于 RRC连接的重配置的信令中; 或者包含于用于 切换准备的信令中。
与实施例 1 的示例三和示例四类似, 在一个实施方式中, 所述配置单元 61通过 RRC信令承载所述 CQI index表格指示信息, 其中, 所述配置单元可以通过用于配置 PUCCH传输的用户专用信息元承载所述 RRC信令, 例如所述 CQI index表格指示信 息通过信息元 PUCCH-ConfigDedicated-rl2承载; 或者所述 CQI index表格指示信息 通 过 信 息 元 PUCCH-ConfigDedicatedSCell-rl2 承 载 。 其 中 , 所 述 PUCCH-ConfigDedicated-rl2信息元可以包含于用于 RRC连接的初始建立的信令中; 或者可以包含于用于 RRC连接的重配置的信令中;或者可以包含于用于 RRC连接的 重建立的信令中; 或者可以包含于用于切换准备的信令中。 其中, 所述 PUCCH-ConfigDedicatedSCell-rl2信息元可以包含于用于 RRC连接的重配置的信令 中; 或者可以包含于用于切换准备的信令中。
与实施例 1的示例五类似, 在一个实施方式中, 当标准中配置了两个 CQI index 表格 (对应的配置了两个调制和 TBS序号表格) 时, 上述配置单元 61通过 MAC信 令承载上述 CQI index表格指示信息, 例如, 通过具有特定指示信息的 MAC信令指 示 CQI index表格, 例如只有头信息的 MAC信令, 所述头信息中包含指定的 LCID。 由此, UE可以根据是否接收到具有特定指示信息的 MAC信令确定 eNB为其配置的 CQI index表格 (也即 UE需要使用的 CQI index表格)。 与实施例 1的示例六类似, 在一个实施方式中, 当标准中配置了两个以上的 CQI index表格 (相应的配置了两个以上的调制和 TBS序号表格) 时, 上述配置单元 61 通过 MAC信令承载上述 CQI index表格指示信息, 例如, 通过具有特定指示信息的 MAC信令指示 CQI index表格,例如具有头信息和内容信息的 MAC信令,所述头信 息中包含指定的 LCID, 所述内容信息中包含配置的 CQI index表格的序号。 由此, UE可以根据接收到的具有特定指示信息的 MAC信令确定配置的 CQI index表格(也 即 UE需要使用的 CQI index表格)。
在本实施例中, 是以 eNB按照实施例 1的方法为 UE配置 CQI index表格为例说 明该 UE接收到的该 CQI index表格指示信息的承载方式, 然而本实施例并不以此作 为限制, eNB也可以按照实施例 5的方法在为 UE配置调制和 TBS序号表格时间接 (隐性) 的为 UE配置 CQI index表格, 此时, 本实施例的 UE仍可以通过确定单元 72根据接收到的基站发送的 CQI index表格指示信息确定基站为上述 UE配置的 CQI index表格。
通过本实施例的 UE根据 eNB通过 RRC公共信令或者 RRC专用信令或者 MAC 信令为其配置的需要使用的 CQI index表格, 可以支持多个表格, 也即标准中可以新 增支持更高阶调制的 CQI index表格。 由此, 不仅可以支持更高阶的调制方式, 还能 保证 LTE系统的正常配置。
实施例 5
本发明实施例还提供了一种调制编码方案(MCS) 的配置方法。 图 8是该方法的 流程图, 请参照图 8, 该方法包括:
步骤 801 : eNB 通过调制和传输块大小 (TBS) 序号表格指示信息为 UE配置下 行传输所采用的调制和 TBS序号表格,和 /或上行传输需使用的调制和 TBS序号表格, 以便所述 UE在接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序 号表格和 /或所述上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的编码调 制方案。
在本实施例的一个实施方式中, eNB可以通过 RRC公共信令承载上行传输和 /或 下行传输所采用的调制和 TBS序号表格的指示信息。
例如, 所述下行传输所采用的调制和 TBS 序号表格的指示信息可以通过信息元 PDSCH-ConfigCommon承载,该信息元 PDSCH-ConfigCommon可以包含于广播信令 中, 也可以包含于用于 RRC连接的重配置的信令中, 还可以包含于用于切换准备的 信令中。
例如, 所述上行传输所采用的调制和 TBS 序号表格的指示信息可以通过信息元 PUSCH-ConfigCommon承载,该信息元 PUSCH-ConfigCommon可以包含于广播信令 中, 也可以包含于用于 RRC连接的重配置的信令中, 还可以包含于用于切换准备的 信令中。
以下通过具体示例对采用 RRC公共信令承载上行传输和 /或下行传输所采用的调 制和 TBS序号表格的指示信息的方法进行说明。
示例七
在数据传输过程中, 上行传输和下行传输所用的 "调制和 TBS序号表格"可以根 据实施例 1的方法在 eNB为 UE配置了需要使用的 "CQI index表格后"被隐性 (间 接) 的配置 (即新旧 "CQI index表格"和新旧 "调制和 TBS序号表格"的使用具有 一致性)。 上行传输和下行传输所用的 "调制和 TBS序号表格"也可以分别配置。
其中, 对于间接配置的方式, 当 eNB通过实施例 1的方法为 UE配置了需要使用 的 CQI index表格后, 会按照与配置的 "CQI index表格"对应的 "调制和 TBS序号 表格" 向 UE发送 IMCS, 由此, UE可以根据接收到的 IMCS查询相应的 "调制和 TBS 序号表格", 进而根据获得的 TBS序号, 进行下行传输的解调解码, 或下行传输的解 调解码和上行传输的编码调制。 因此, 对于间接配置的方案, 在此不再赘述。
其中,对于上行传输和下行传输所用的"调制和 TBS序号表格"分别配置的方式, 在本实施例中进行说明。 在本示例中, 可以只配置上行传输的 "调制和 TBS序号表 格"或者只配置下行传输的 "调制和 TBS序号表格", 也可以既配置上行传输的 "调 制和 TBS序号表格"也配置下行传输的 "调制和 TBS序号表格"。
本示例是以在 RRC公共信令中添加用于配置上行传输和 /或下行传输所用的 "调 制和 TBS序号表格"为例。 这种情况下, "CQI index表格"被间接配置。 即新旧下 行 "调制和 TBS序号表格"和新旧 "CQI index表格" 的使用具有一致性。
在本示例中, 由于使用 RRC公共信令配置"调制和 TBS序号表格", 因此这种方 法配置的"调制和 TBS序号表格"及对应的" CQI index表格"是小区专用 (Cell-specific) 的, 即小区中所有用户都采用该表格。
在本示例中, 可以在信息元 PDSCH-ConfigCommon中增加用于配置下行传输的 调制和 TBS序号表格的信令, 如下所示:
N;;v : 1 HoJAi' -j'l'B 'l'.-i h t -- 1 ' NUM kA'l' { :■ - 1 : } i ' I J ' j 其中, "NewDLModAndTBSTable-rl2 "为新增的信令, 用于指示配置的用于下行 传输的调制和 TBS序号表格, 例如该信令为可选配置, 如果对应的" ENUMERATED {true} "则配置使用新下行 "调制和 TBS序号表格", 如果该信令未被包含在信息元 PUCCH-ConfigCommon 中则配置使用原下行 "调制和 TBS序号表格"。
在本示例中, 还可以在信息元 PUSCH-ConfigCommon中增加用于配置上行传输 的调制和 TBS序号表格的信令, 如下所示:
Figure imgf000027_0001
其中, "NewULModAndTBSTable-rl2 "为新增的信令, 用于指示配置的用于上行 传输的调制和 TBS序号表格, 例如该信令为可选配置, 如果对应的" ENUMERATED {true} "则配置使用新上行 "调制和 TBS序号表格", 如果该信令未被包含在信息元 PUCCH-ConfigCommon 中则配置使用原上行 "调制和 TBS序号表格"。
在本示例的一个实施方式中, 信息元 PUSCH-ConfigCommon 和信息元
PDSCH-ConfigCommon均可以被包含在信息元 RadioResourceConfigCommonSIB中。 信 息 元 RadioResourceConfigCommonSIB 被 包 含 在 信 息 元 SystemInformationBlockType2中, 因此用于配置下行 /上行传输的 "调制和 TBS序号 表格" 的信息可以由广播信令承载。
在本示例的另外一个实施方式中, 信息元 PUSCH-ConfigCommon还可以被包含 在信息元 adioResourceConfigCommon中。 信息元 PDSCH-ConfigCommon也可以被 可选地包含在信息兀 adioResourceConfigCommon中。 adioResourceConfigCommon 信息元被包含在信息元 MobilityControlInfo中, 信息元 MobilityControlInfo通常用于 切换, 被可选地包含在信息元 RRCConnectionReconfiguration-r8-IEs 中。 信息元 RRCConnection econfiguration-r8 -IEs被包含于信肩、兀 RRCConnectionReconfiguration 中, 用于 RRC连接的重配置。
在本实施方式中, 用于配置 PCell上行 /下行传输的 "调制和 TBS序号表格"的信 息可以在 RRC连接重配置的时候通过 RRC链接的重配置的信令进行配置。
在本示例的另外一个实施方式中, 信息元 PUSCH-ConfigCommon 和信息元
PDSCH-ConfigCommon还可以被包含在 RadioResourceConfigCommonSCell-rlO信息 元中。 信息元 RadioResourceConfigCommonSCell-rlO 可以被包含在信息元 SCellToAddMod-rlO 中。 一个或多个信息元 SCellToAddMod-rlO 组成信息元 SCellToAddModList-rlO。
其 中 , 信 息 元 SCellToAddModList-rlO 可 以 被 包 含 在 信 息 元 RRCConnection econfiguration-v 1020-IEs 中 。 信 息 元
RRCConnection econfiguration-v 1020-IEs 又被层层包裹, 最终被包含在信息元 RRCConnectionReconfiguration中。信息兀 RRCConnectionReconfiguration被用于 RRC 连接重配置。而信息元 RRCConnectionReconfiguration-v 1020-IEs中所包含的信息则用 于 重配 置 SCell 。 因 此 , 信 息 元 PUSCH-ConfigCommon 禾 Π 信 息 元 PDSCH-ConfigCommon还可以通过用于 RRC连接的重配置的信令承载。
其中, 信息元 SCellToAddModList-rlO还可以被包含在信息元 AS-Config中。 信 息元 AS-Config 用于切换准备。 因此, 信息元 PUSCH-ConfigCommon 和信息元 PDSCH-ConfigCommon还可以通过用于切换准备的信令承载。
在本实施方式中, 用于配置 SCell的上行 /下行传输的 "调制和 TBS序号表格"的 信息可以在对 SCell进行配置的时候通过 RRC连接重配置进行配置。 并可以在用户 切换准备时, 在源基站和目标基站之间交互。
在本实施例的另外一个实施方式中, eNB可以通过 RRC专用信令承载上行传输 和 /或下行传输所采用的调制和 TBS序号表格的指示信息。
例如, 所述下行传输所采用的调制和 TBS 序号表格的指示信息可以通过信息元
PDSCH-ConfigDedicated承载。 该信息元 PDSCH-ConfigDedicated 可以包含于用于 RRC连接的初始建立的信令中, 也可以包含于用于 RRC连接的重配置的信令中, 还 可以包含于用于 RRC连接的重建立的信令中,还可以包含于用于切换准备的信令中。
例如, 所述上行传输所采用的调制和 TBS 序号表格的指示信息可以通过信息元 PUSCH-ConfigDedicated-vl020 承载, 也可以通过 PUSCH-ConfigDedicatedSCell-rlO 信息元承载。 该信息元 PUSCH-ConfigDedicated-vl020可以包含于用于 RRC连接的 初始建立的信令中; 或者包含于用于 RRC连接的重配置的信令中; 或者包含于用于 RRC 连接的重建立的信令中; 或者包含于用于切换准备的信令中。 该信息元 PUSCH-ConfigDedicatedSCell-r 10可以包含于用于 RRC连接的重配置的信令中;或者 包含于用于切换准备的信令中。
以下通过具体示例对采用 RRC专用信令承载上行传输和 /或下行传输所采用的调 制和 TBS序号表格的指示信息的方法进行说明。
示例八
如示例七所述的, 在数据传输过程中, 上行传输和下行传输所用的 "调制和 TBS 序号表格"也可以分别配置。 在本示例中, 与示例七类似, 可以只配置上行传输所用 的 "调制和 TBS序号表格"或者只配置下行传输所用的 "调制和 TBS序号表格", 也可以既配置上行传输所用的 "调制和 TBS序号表格"也配置下行传输所用的 "调 制和 TBS序号表格"。
本示例是以在 RRC专用信令中添加用于配置上行传输和 /或下行传输所用的 "调 制和 TBS序号表格"为例。 这种情况下, "CQI index表格"被间接配置。 即新旧下 行 "调制和 TBS序号表格"和新旧 "CQI index表格" 的使用具有一致性。
在本示例中, 由于使用 RRC专用信令配置"调制和 TBS序号表格", 因此这种方 法配置的下行和 /或上行 "调制和 TBS序号表格"及对应的 "CQI index表格"是用户 专用 (UE-specific)的, 即每个用户都根据自己的配置采用相应的表格。
在本示例中, 可以在信息元 PDSCH-ConfigDedicated中增加用于配置下行传输的 调制和 TBS序号表格的信令, 如下所示:
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N.、 :1 M . JAi 'l'H^'I I - I:' - NiJM RA'l' : ; {:. - i (■ '、-■ I U OH 其中, "NewDLModAndTBSTable-rl2" 的含义与示例七相同, 在此不再赘述。 在本示例中, 还可以在信息元 PUSCH-ConfigDedicated-vl020中增加用于配置上 行传输的 "调制和 TBS序号表格" 的信令, 如下所示: : 猶:
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NiJil A'I' :: :::: ί權 NiJM h'A'l' :; :0:醒疆願 願 其中, "NewULModAndTBSTable-rl2" 的含义与示例七相同, 在此不再赘述。 在本示例中, 还可以在信息元 PUSCH-ConfigDedicatedSCell-rlO中增加用于配置 上行传输的 "调制和 TBS序号表格" 的相应信令, 如下所示: 隱難誦議灘纖議聽 I國纖薩■画國顏 :;:;:議;: 顯顯誦醫
:.; - ο) --1-ορμ i : i ^'.卜 I ^^- '- 1:"-· NiJM KA'I' : - ι.,' :.::;T I UNAL, dm- - i :■ i ,-.■■:; -■■ ] NUfl KA : { 0:;,1' I;. AI 一一 : N;;v LM Ho-.JAi'd'I'B 'l'.-ih t -- 1 NUM kA'l' :; { :. - } 0:;,1' I CNAI 卜 J、 j 其中, "NewULModAndTBSTable-rl2" 的含义与示例七相同, 在此不再赘述。 在本示例的一个实施方式中, 信息元 PDSCH-ConfigDedicated 和信息元 PUSCH-ConfigDedicated-vl020可以包含在信息元 PhysicalConfigDedicated中。 信息 兀 PhysicalConfigDedicated被包含在信息兀 adio esourceConfigDedicated中。
其 中 , 信息元 RadioResourceConfigDedicated 可 以被包含在信息元 RRCConnectionSetup-r8-IEs 中。 信息元 RRCConnectionSetup-r8-IEs 被包含在 RRCConnectionSetu 中。信息元 RRCConnectionSetup用于 RRC连接的初始建立。因 此, 信息元 PDSCH-ConfigDedicated和信息元 PUSCH-ConfigDedicated-vl020可以通 过用于 RRC连接的初始建立的信令承载。
其中, 信息元 RadioResourceConfigDedicated还可以用于切换, 被可选地包含在 信 息 元 RRCConnection econfiguration-r8-IEs 中 。 信 息 元 RRCConnection econfiguration-r8-IEs 被 包 含 于 信 息 元 RRCConnectionReconfiguration„ 信息元 RRCConnectionReconfiguration用于 C连 接 的 重 配 置 。 因 此 , 信 息 元 PDSCH-ConfigDedicated 禾 Π 信 息 元 PUSCH-ConfigDedicated-vl020可以通过用于 RRC连接的重配置的信令承载。
其中, 信息元 RadioResourceConfigDedicated 还可以被包含在信息元 RRCConnection eestablishment-r8-IEs 中 。 信 息 元
RRCConnectionReestablishment-r8-IEs被包含在信息元 RRCConnectionReestablishment 中。 信息元 RRCConnectionReestablishment用于 RRC连接的重建立。 因此, 信息元 PDSCH-ConfigDedicated和信息元 PUSCH-ConfigDedicated-vl020可以通过用于 RRC 连接的重建立的信令承载。
其中, 信息元 RadioResourceConfigDedicated还可以被包含在信息元 AS-Config 中。 信息元 AS-Config用于切换准备。 因此, 信息元 PDSCH-ConfigDedicated和信息 元 PUSCH-ConfigDedicated-vl020可以通过用于切换准备的信令承载。
在本实施方式中, 如果上、 下行传输的 "调制和 TBS序号表格"按照本实施例的 方法进行配置, 则这种配置是 UE专用的, 既每个 UE按照自己的配置信息采用相应 的表格。配置信息可以在 RRC连接建立时,可以在 RRC连接重配置时, 以及在 RRC 连接重新建立时利用 RRC专用信令进行配置。 并可以在用户切换准备时, 在源基站 和目标基站之间交互。
在本示例的另外一个实施方式中, 信息元 PDSCHConfigDedicated 和信息元 PUSCH-ConfigDedicatedSCell-r 10 也 均 可 以 包 含 在 信 息 元 PhysicalConfigDedicatedSCell-rlO中。信息元 PhysicalConfigDedicatedSCell-rlO被包含 在 信 息 元 adio esourceConfigDedicatedSCell-rlO 中 。 信 息 元 adio esourceConfigDedicatedSCell-rlO可以被可选地包含在 SCellToAddMod-rlO中。 一个或多个信息元 SCellToAddMod-rlO组成信息元 SCellToAddModList-rlO。
其 中 , 信 息 元 SCellToAddModList-rlO 可 以 被 包 含 在 信 息 元 RRCConnection econfiguration-v 1020-IEs 中 。 信 息 元
RRCConnection econfiguration-v 1020-IEs 又被层层包裹, 最终被包含在信息元 RRCConnectionReconfiguration中。信息兀 RRCConnectionReconfiguration被用于 RRC 连接重配置。而信息元 RRCConnectionReconfiguration-vl 020-IEs中所包含的信息,则 用 于重配置 SCell。 因此, 信息元 PDSCHConfigDedicated 禾 Π信息元 PUSCH-ConfigDedicatedSCell-r 10可以通过用于 RRC连接的重配置的信令承载。
其中, 信息元 SCellToAddModList-rlO还可以被包含在信息元 AS-Config中。 信 息元 AS-Config 用于切换准备。 因此, 信息元 PDSCHConfigDedicated 和信息元 PUSCH-ConfigDedicatedSCell-rl 0可以通过用于切换准备的信令承载。 在本实施方式中, 如果用于 SCell的上、 下行传输的 "调制和 TBS序号表格"按 照本实施例描述的方法进行配置, 则这种配置是 UE专用的, 既每个 UE按照自己的 配置信息采用相应的表格。 配置信息可以在对 SCell进行配置的时候通过 RRC连接 重配置进行配置。 并可以在用户切换准备时, 在源基站和目标基站之间交互。
在示例七和示例八的说明中, 是以可用的候选表格只有一个(也即除了标准提供 的表格以外只有一个候选的新表格)为例, 但本实施例并不以此作为限制, 当可用的 候选表格为多个时, 也即标准中增加了多个用于上下行传输的 "调制和 TBS序号表 格"以及多个对应的 "CQI index表格"时, eNB也可以通过上述 RRC公共信令或者 上述 RRC专用信令指示相应的表格序号, 例如使新增的信令为以下形式:
NewDLModAndTBSTable-rl2 ENUMERATED {0,1,2,3}
或者
NewULModAndTBSTable-rl2 ENUMERATED {0,1,2,3}
或者
NewDLModAndTBSTable-rl2 ENUMERATED {0,1,2,3} Optional Need ON 或者
NewULModAndTBSTable-rl2 ENUMERATED {0,1,2,3} Optional Need ON 在本实施例的另外一个实施方式中, eNB 可以通过 MAC 信令承载上行传输和 / 或下行传输所采用的调制和 TBS序号表格的指示信息,所述 MAC信令为只有头信息 的 MAC信令, 或者所述 MAC信令具有头信息和内容信息的 MAC信令, 所述头信 息中包含指定的 LCID,所述内容信息中包含上行传输需使用的调制和 TBS序号表格 和 /或下行传输所采用的调制和 TBS序号表格。
以下通过具体示例对采用 MAC信令承载用于指示上行传输和 /或下行传输所采用 的调制和 TBS序号表格的信息的方法进行说明。
示例九
在本示例中,上行传输和下行传输的所采用的"调制和 TBS序号表格"通过 MAC 层的信令被分开配置 ("CQI index表格"被间接配置, 即新旧下行 "调制和 TBS序 号表格"和新旧 "CQI index表格" 的使用具有一致性。)。
图 9是根据本实施例的方法的 MAC信令的头信息的组成示意图, 如图 9所示, eNB 利用一个带有指定 LCID 的 MAC PDU subheader定义 Mod and TBS Table Command MAC control element。 其中, "R"为保留比特, 设置为 "0"; "E"为扩展 域, 扩展域是一个标识, 用来指示在 MAC Header中是否有其它的域, E设置为 " 1 " 表示至少有一个其它的 R/R/E/LCID域, E设置为 " 0 "表示有一个 MAC SDU、 一个 MAC control element或者 padding starts在下一个字节;" LCID "表征相应的 MAC CE 是 Mod and TBS Table Command MAC CE。
图 10是根据本实施例的方法的 MAC信令的内容信息的一个实施例的组成示意 图, 在该实施例中, 该 MAC control element为固定长度, 由一个如图 10所示的一个 字节 (octet)定义, 其中, "R"为保留比特, 设置为 " 0 "; "DL Mod and TBS Tab "域 用来指示基站为 UE配置的下行 "调制和 TBS序号表格" 的序号, 这个域的长度由 可用下行 "调制和 TBS序号表格" 的总数决定, 例如, 假设可用表格的数目为 ¾ , 则这个域所占比特数目为 log2(¾ ), 除 DL Mod and TBS Tab域所占比特以外的比特 为 R比特, 即 R比特共用 8 - log2 (¾ )个。
图 11是根据本实施例的方法的 MAC信令的内容信息的另外一个实施例的组成示 意图, 在该实施例中, 该 MAC control element为固定长度, 由一个如图 11所示的一 个字节 (octet)定义, 其中, "R"为保留比特, 设置为 " 0 "; "UL Mod and TBS Tab " 域用来指示基站为 UE配置的上行 "调制和 TBS序号表格" 的序号, 这个域的长度 由可用上行"调制和 TBS序号表格"的总数决定, 例如, 假设可用表格的数目为 xra, 则这个域所占比特数目为 1ο^( ¾), 除 UL Mod and TBS Tab域所占比特以外的比特 为 R比特, 即 R比特共用 S - log^x^ 个。
图 12是根据本实施例的方法的 MAC信令的内容信息的另外一个实施例的组成示 意图, 在该实施例中, 该 MAC control element为固定长度, 由一个如下所图 12所示 的一个字节 (octet)定义。其中, "R"为保留比特, 设置为 " 0 "; "UL Mod and TBS Tab " 域用来指示基站为 UE配置的上行 "调制和 TBS序号表格" 的序号, 这个域的长度 由可用上行"调制和 TBS序号表格"的总数决定, 例如, 假设可用表格的数目为 xra, 则这个域所占比特数目为 log2(xra ) ; "DL Mod and TBS Tab "域用来指示基站为 UE 配置的下行 "调制和 TBS序号表格"的序号,这个域的长度由可用下行 "调制和 TBS 序号表格" 的总数决定, 假设可用表格的数目为 ¾i, 则这个域所占比特数目为 log2( Di )。除 UL Mod and TBS Tab域和 DL Mod and TBS Tab域所占比特以外的比特 为 R比特, 即 R比特共有 8 - log2 {xUL ) - log2 {xDL )个。
通过本发明实施例的方法, eNB通过 RRC公共信令或者 RRC专用信令或者 MAC 信令为 UE配置调制和 TBS序号表格, 以便 UE根据接收到的 IMCS查询相应的表格, 以确定 TBS,并根据确定的 TBS进行下行数据的解调解码或者上行数据的调制编码, 由此, 既不用增加 CQI index和 IMCS比特数目又能保证 LTE系统的正常配置。
实施例 6
本发明实施例还提供了一种调制编码方案(MCS) 的配置方法, 该方法是与实施 例 5的方法对应的 UE侧的处理。 图 13和图 14是该方法的两个实施方式的流程图。
请参照图 13, 该方法包括:
步骤 1301 : UE根据接收到的基站发送的调制和 TBS序号表格的指示信息确定下 行传输所采用的调制和 TBS序号表格;
其中, 该调制和 TBS序号表格的指示信息可以通过实施例 5的方式承载和发送, 也可以通过实施例 1的方式被间接(隐性)配置和发送, 其内容被合并于此, 在此不 再赘述。
步骤 1302: 所述 UE根据所述下行传输所采用的调制和 TBS序号表格确定基站 为其配置的编码调制方案。
其中, 当确定了下行传输所采用的调制和 TBS序号表格, UE即可根据接收到的 编码调制方案指示信息,通过查表确定对应的 TBS。具体的查表方式与现有技术相同, 在此不再赘述。根据查找到的 TBS, UE即可通过查询 TBS表确定传输块的信息比特 的大小, 进而间接获得编码码率, 并利用获得的编码码率进行下行数据的解调解码。 其中, 如果确定的 "调制和 TBS序号表格"为旧表格, 则 TBS表可以是背景技术中 所指示的表四, 如果确定的 "调制和 TBS序号表格"为新表格, 则 TBS表可以是对 应该表四增加了行的表格。 其中, 解调解码的方法与现有技术相同, 在此不再赘述。
通过图 13的方法, 当确定了基站为 UE配置的编码调制方案后, UE可以进行下 行数据的解调解码, 既没有增加 IMCS的比特数目, 又支持了多个 "调制和 TBS序号 表格", 还能保证 LTE系统的正常配置。
请参照图 14, 该方法包括:
步骤 1401 : UE根据接收到的基站发送的调制和 TBS序号表格指示信息确定上行 传输需使用的调制和 TBS序号表格;
其中, 该调制和 TBS序号表格的指示信息可以通过实施例 5的方式承载和发送, 也可以通过实施例 1的方式被间接(隐性)配置和发送, 其内容被合并于此, 在此不 再赘述。 步骤 1402: 所述 UE根据所述上行传输需使用的调制和 TBS序号表格确定基站 为其配置的编码调制方案。
其中, 当确定了上行传输所采用的调制和 TBS序号表格, UE即可根据接收到的 编码调制方案指示信息,通过查表确定对应的 TBS。具体的查表方式与现有技术相同, 在此不再赘述。根据查找到的 TBS, UE即可通过查询 TBS表确定传输块的信息比特 的大小, 进而间接获得编码码率, 并利用获得的编码码率进行上行数据的编码调制。 其中, 如果确定的 "调制和 TBS序号表格"为旧表格, 则 TBS表可以是背景技术中 所指示的表四, 如果确定的 "调制和 TBS序号表格"为新表格, 则 TBS表可以是对 应该表四增加了行的表格。 其中, 编码调制的方法与现有技术相同, 在此不再赘述。
通过图 14的方法, 当确定了基站为 UE配置的编码调制方案后, UE可以进行上 行数据的编码调制, 既没有增加 IMCS的比特数目, 又支持了多个 "调制和 TBS序号 表格", 还能保证 LTE系统的正常配置。
本发明实施例还提供了一种基站, 如下面的实施例 7所述, 由于该基站解决问题 的原理与实施例 5的方法类似, 因此其具体的实施可以参照实施例 5的方法的实施, 重复之处不再赘述。
实施例 7
本发明实施例提供了一种基站(eNB)。 图 15是该 eNB的组成示意图, 请参照图 15, 该 eNB包括:
配置单元 151, 其通过调制和 TBS序号表格指示信息为 UE配置下行传输所采用 的调制和 TBS序号表格, 和 /或上行传输需使用的调制和 TBS序号表格, 以便所述 UE在接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序号表格和 / 或所述上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的编码调制方案。
在一个实施例中, 所述下行传输所采用的调制和 TBS 序号表格的指示信息通过 RRC公共信令承载, 例如, 所述下行传输所采用的调制和 TBS序号表格的指示信息 通过信息元 PDSCH-ConfigCommon承载。其中, 所述信息元 PDSCH-ConfigCommon 包含于广播信令中; 或者包含于用于 RRC连接的重配置的信令中; 或者包含于用于 切换准备的信令中。
在一个实施例中, 所述上述传输所采用的调制和 TBS 序号表格的指示信息通过 RRC公共信令承载, 例如, 所述上行传输需使用的调制和 TBS序号表格的指示信息 通过信息元 PUSCH- ConfigCommon承载。其中,所述信息元 PUSCH- ConfigCommon 包含于广播信令中; 或者包含于用于 RRC连接的重配置的信令中; 或者包含于用于 切换准备的信令中。
在一个实施例中, 所述下行传输所采用的调制和 TBS 序号表格的指示信息通过 RRC专用信令承载, 例如, 所述下行传输所采用的调制和 TBS序号表格的信息通过 信息元 PDSCH-ConfigDedicated承载。 其中, 所述信息元 PDSCH-ConfigDedicated包 含于用于 RRC连接的初始建立的信令中; 或者用于 RRC连接的重配置的信令中; 或 者包含于用于 RRC连接的重建立的信令中; 或者包含于用于切换准备的信令中。
在一个实施例中, 所述上行传输所采用的调制和 TBS 序号表格的指示信息通过 RRC专用信令承载, 例如, 所述上行传输需使用的调制和 TBS序号表格的信息通过 信 息 元 PUSCH-ConfigDedicated-vl020 承 载 , 或 者 通 过 PUSCH-ConfigDedicatedSCell-r 10 信 息 元 承 载 。 其 中 , 所 述 PUSCH-ConfigDedicated-vl020信息元包含于用于 RRC连接的初始建立的信令中,或 者包含于用于 RRC连接的重配置的信令中,或者包含于用于 RRC连接的重建立的信 令 中 , 或 者 包 含 于 用 于 切 换 准 备 的 信 令 中 ; 所 述 信 息 元 PUSCH-ConfigDedicatedSCell-r 10包含于用于 RRC连接的重配置的信令中,或者包含 于用于切换准备的信令中。
在一个实施例中, 所述下行传输和 /或上行传输所采用的调制和 TBS序号表格的 指示信息通过 MAC信令承载, 所述 MAC信令只包含头信息, 或者所述 MAC信息 包含头信息和内容信息, 所述头信息中包含指定的 LCID, 所述内容信息中包含上行 传输需使用的调制和 TBS序号表格和 /或下行传输所采用的调制和 TBS序号表格。
本发明实施例的 eNB通过 RRC公共信令或者 RRC专用信令或者 MAC信令为 UE配置上行传输和 /下行传输所采用的调制和 TBS序号表格,以便 UE根据接收到的 IMCS查询相应的表格, 以确定 TBS, 并根据确定的 TBS进行下行数据的解调解码或 者上行数据的调制编码, 由此, 既不用增加 CQI index和 IMCS比特数目又能保证 LTE 系统的正常配置。
本发明实施例还提供了一种用户设备, 如下面的实施例 8所述, 由于该用户设备 解决问题的原理与实施例 6的方法类似,因此其具体的实施可以参照实施例 6的方法 的实施, 重复之处不再赘述。 实施例 8
本发明实施例提供了一种用户设备(UE)。 图 16是该 UE的组成示意图, 请参照 图 16, 该 UE包括:
第一确定单元 161,其根据接收到的基站发送的调制和 TBS序号表格的指示信息 确定下行传输所采用的调制和 TBS序号表格;
第二确定单元 162,其根据所述下行传输所采用的调制和 TBS序号表格确定基站 为所述 UE配置的编码调制方案。 以便根据对应所述编码调制方案的 TBS对接收到 的下行数据进行解调解码。
本发明实施例还提供了一种用户设备(UE)。 图 17是该 UE的组成示意图, 请参 照图 17, 该 UE包括:
第一确定单元 171,其根据接收到的基站发送的调制和 TBS序号表格的指示信息 确定上行传输需使用的调制和 TBS序号表格;
第二确定单元 172,其根据所述上行传输需使用的调制和 TBS序号表格确定基站 为所述 UE配置的编码调制方案。 以便根据对应所述编码调制方案的 TBS对要传输 的上行数据进行编码调制。
在图 16和图 17的 UE中,所述下行传输需使用的调制和 TBS序号表格的指示信 息和 /或所述上行传输需使用的调制和 TBS序号表格的指示信息的承载方式与实施例 1或实施例 5相同, 其内容被合并于此, 在此不再赘述。
本发明实施例还提供了一种通信系统, 其中, 所述通信系统包括实施例 4所述的 UE以及实施例 3所述的 eNB, 或者, 所述通信系统包括实施例 8所述的 UE以及实 施例 7所述的 eNB。
本发明实施例还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 程序使得计算机在所述基站中执行实施例 1所述的信道质量指示(CQI)的配置方法, 或者执行实施例 5所述的调制编码方案 (MCS) 的配置方法。
本发明实施例还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实施例 1所述的信道质量指示 (CQI) 的配置方法, 或者执行实施例 5所述的调制编码方案 (MCS) 的配置方法。
本发明实施例还提供了一种计算机可读程序, 其中当在终端设备中执行该程序 时, 该程序使得计算机在所述终端设备中执行实施例 2所述的信道质量指示 (CQI) 的配置方法, 或者执行实施例 6所述的调制编码方案 (MCS) 的配置方法。
本发明实施例还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中的设备中执行实施例 2所述的信道质量指示 (CQI) 的配置方 法, 或者执行实施例 6所述的调制编码方案 (MCS) 的配置方法。
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步骤。逻辑 部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。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

权 利 要 求 书
1、 一种信道质量指示 (CQI) 的配置方法, 其中, 所述方法包括:
基站 (eNB) 通过信道质量指示索引 (CQI index) 表格指示信息为 UE配置 CQI index表格, 以便所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置 的 CQI index表格,根据计算的预编码矩阵指示(PMI)和秩指示(RI)计算 CQI index^
2、 一种信道质量指示 (CQI) 的配置方法, 其中, 所述方法包括:
UE根据信道估计结果计算 PMI和 RI;
所述 UE根据接收到的基站发送的 CQI index表格指示信息确定配置的 CQI index 表格;
所述 UE利用配置的 CQI index表格, 根据所述 PMI和 RI计算 CQI index。
3、根据权利要求 1或 2所述的方法, 其中, 所述 CQI index表格指示信息通过无 线资源控制 (RRC) 信令承载。
4、根据权利要求 1或 2所述的方法, 其中, 所述 CQI index表格指示信息通过介 质访问控制 (MAC) 信令承载。
5、 根据权利要求 3所述的方法, 其中, 所述 RRC信令由用于配置 PUCCH传输 的公共信息元承载。
6、 根据权利要求 3所述的方法, 其中, 所述 RRC信令由用于配置 PUCCH传输 的用户专用信息元承载。
7、 一种调制编码方案 (MCS) 的配置方法, 其中, 所述方法包括:
eNB通过调制和传输块大小 (TBS) 序号表格指示信息为 UE配置下行传输所采 用的调制和传输块大小 (TBS) 序号表格, 和 /或上行传输需使用的调制和 TBS序号 表格, 以便所述 UE 在接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序号表格和 /或所述上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的 编码调制方案。
8、 一种调制编码方案 (MCS) 的配置方法, 其中, 所述方法包括:
UE根据接收到的基站发送的调制和 TBS序号表格指示信息确定下行传输所采用 的调制和 TBS序号表格;
所述 UE根据所述下行传输所采用的调制和 TBS序号表格确定基站为其配置的编 码调制方案。
9、 一种调制编码方案 (MCS ) 的配置方法, 其中, 所述方法包括:
UE根据接收到的基站发送的调制和 TBS序号表格指示信息确定上行传输需使用 的调制和 TBS序号表格;
所述 UE根据所述上行传输需使用的调制和 TBS序号表格确定基站为其配置的编 码调制方案。
10、根据权利要求 7或 8所述的方法 , 其中, 下行传输所采用的调制和 TBS序号 表格的指示信息通过 RRC信令承载。
11、 根据权利要求 10所述的方法 , 其中, 所述 RRC信令由用于配置 PDSCH传 输的公共信息元承载。
12、 根据权利要求 10所述的方法, 其中, 所述 RRC信令由用于配置 PDSCH传 输的用户专用信息元承载。
13、根据权利要求 7或 8所述的方法 , 其中, 下行传输所采用的调制和 TBS序号 表格的指示信息通过 MAC信令承载。
14、根据权利要求 7或 9所述的方法, 其中, 上行传输所采用的调制和 TBS序号 表格的指示信息通过 RRC信令承载。
15、 根据权利要求 14所述的方法 , 其中, 所述 RRC信令由用于配置 PUSCH传 输的公共信息元承载。
16、 根据权利要求 14所述的方法, 其中, 所述 RRC信令由用于配置 PUSCH传 输的用户专用信息元承载。
17、根据权利要求 7或 9所述的方法 , 其中, 上行传输所采用的调制和 TBS序号 表格的指示信息通过 MAC信令承载。
18、 一种基站, 用于为 UE配置信道质量指示, 其中, 所述基站包括: 配置单元, 其通过 CQI index表格指示信息为 UE配置 CQI index表格, 以便所述 UE根据所述指示信息确定配置的 CQI index表格, 并利用配置的 CQI index表格, 根 据计算的预编码矩阵指示 (PMI) 和秩指示 (RI ) 计算 CQI indeX
19、根据权利要求 18 所述的基站, 其中, 所述配置单元通过 RRC信令承载所述 CQI index表格指示信息。
20、根据权利要求 18所述的基站, 其中, 所述配置单元通过 MAC信令承载所述 CQI index表格指示信息。
21、根据权利要求 19所述的基站, 其中, 所述配置单元通过用于配置 PUCCH传 输的公共信息元承载所述 RRC信令。
22、根据权利要求 19所述的基站, 其中, 所述配置单元通过用于配置 PUCCH传 输的用户专用信息元承载所述 RRC信令。
23、 一种用户设备, 其中, 所述用户设备包括:
第一计算单元, 其根据信道估计结果计算 PMI和 RI;
确定单元, 其根据接收到的基站发送的 CQI index表格指示信息确定配置的 CQI index表格;
第二计算单元, 其利用所述确定单元确定的基站为所述用户配置的 CQI index表 格, 根据所述 PMI和 RI计算 CQI index。
24、 一种基站, 用于为 UE配置调制编码方案, 其中, 所述基站包括: 配置单元,其通过调制和 TBS序号表格指示信息为 UE配置下行传输所采用的调 制和 TBS序号表格, 和 /或上行传输需使用的调制和 TBS序号表格, 以便所述 UE在 接收到所述指示信息后, 根据所述下行传输所采用的调制和 TBS序号表格和 /或所述 上行传输需使用的调制和 TBS序号表格确定 eNB为其配置的编码调制方案。
25、 根据权利要求 24所述的基站, 其中, 所述配置单元通过 RRC信令承载下行 传输所采用的调制和 TBS序号表格的指示信息。
26、根据权利要求 25所述的基站, 其中, 所述配置单元通过用于配置 PDSCH传 输的公共信息元承载所述 RRC信令。
27、根据权利要求 25所述的基站, 其中, 所述配置单元通过用于配置 PDSCH传 输的用户专用信息元承载所述 RRC信令。
28、根据权利要求 24所述的基站, 其中, 所述配置单元通过 MAC信令承载下行 传输所采用的调制和 TBS序号表格的指示信息。
29、 根据权利要求 24所述的基站, 其中, 所述配置单元通过 RRC信令承载上行 传输所采用的调制和 TBS序号表格的指示信息。
30、根据权利要求 29所述的基站, 其中, 所述配置单元通过用于配置 PUSCH传 输的公共信息元承载所述 RRC信令。
31、根据权利要求 29所述的基站, 其中, 所述配置单元通过用于配置 PUSCH传 输的用户专用信息元承载所述 RRC信令。
32、根据权利要求 24所述的基站, 其中, 上述配置单元通过 MAC信令承载上行 传输所采用的调制和 TBS序号表格的指示信息。
33、 一种用户设备, 其中, 所述用户设备包括:
第一确定单元,其根据接收到的基站发送的调制和 TBS序号表格指示信息确定下 行传输所采用的调制和 TBS序号表格;
第二确定单元,其根据所述下行传输所采用的调制和 TBS序号表格确定基站为其 配置的编码调制方案。
34、 一种用户设备, 其中, 所述用户设备包括:
第一确定单元,其根据接收到的基站发送的调制和 TBS序号表格指示信息确定上 行传输需使用的调制和 TBS序号表格;
第二确定单元,其根据所述上行传输需使用的调制和 TBS序号表格确定基站为其 配置的编码调制方案。
35、 一种通信系统, 其中, 所述通信系统包括权利要求 23所述的用户设备以及 权利要求 18-22任一项所述的基站, 或者, 所述通信系统包括权利要求 33所述的用 户设备以及权利要求 24-28任一项所述的基站, 或者, 所述通信系统包括包括权利要 求 34所述的用户设备以及权利要求 24、 29-32任一项所述的基站。
36、 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 所述基站中执行权利要求 1、 3-6任一项所述的信道质量指示(CQI)的配置方法, 或 者执行权利要求 7、 10-17任一项所述的调制编码方案 (MCS) 的配置方法。
37、 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 在基站中执行权利要求 1、 3-6任一项所述的信道质量指示(CQI)的配置方法, 或者 执行权利要求 7、 10-17任一项所述的调制编码方案 (MCS) 的配置方法。
38、 一种计算机可读程序, 其中当在终端设备中执行该程序时, 该程序使得计算 机在所述终端设备中执行权利要求 2-6任一项所述的信道质量指示 (CQI) 的配置方 法, 或者执行权利要求 8-17任一项所述的调制编码方案 (MCS) 的配置方法。
39、 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 在中的设备中执行权利要求 2-6任一项所述的信道质量指示 (CQI) 的配置方法, 或 者执行权利要求 8-17任一项所述的调制编码方案 (MCS) 的配置方法。
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