Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
  • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
  • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L27/00—Modulated-carrier systems
  • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
  • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
  • H04L27/36—Modulator circuits; Transmitter circuits
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03C—MODULATION
  • H03C7/00—Modulating electromagnetic waves
  • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
  • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
  • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
  • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
  • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
  • H04L1/0026—Transmission of channel quality indication
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
  • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
  • H04L1/0028—Formatting
  • H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L25/00—Baseband systems
  • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
  • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
  • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
  • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
  • H04L65/60—Network streaming of media packets
  • H04L65/70—Media network packetisation
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/01—Protocols
  • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W72/00—Local resource management
  • H04W72/20—Control channels or signalling for resource management
  • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L1/00—Arrangements for detecting or preventing errors in the information received
  • H04L2001/0092—Error control systems characterised by the topology of the transmission link
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L27/00—Modulated-carrier systems
  • H04L27/0014—Carrier regulation
  • H04L2027/0083—Signalling arrangements
  • H04L2027/0097—Adaptive synchronisation signals
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04W—WIRELESS COMMUNICATION NETWORKS
  • H04W72/00—Local resource management
  • H04W72/20—Control channels or signalling for resource management
  • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

• the present invention relates to the field of communications, and in particular, to a high-order coding modulation processing method and apparatus, a base station, and a terminal.
• BACKGROUND OF THE INVENTION In mobile communication systems, due to the time-varying characteristics of wireless fading channels, there is a large amount of uncertainty in the communication process.
• high-order modulation with high transmission rate and less redundant error correction code are used for communication, so that the system throughput is greatly improved when the signal-to-noise ratio of the wireless fading channel is ideal, but When the channel is in deep fading, communication cannot be guaranteed to be reliable and stable.
• CSI Channel State Information
• CQI Channel Quality Indicator
• PMI Pre-coding Matrix Indicator
• RI Rank Indicator
• the base station performs downlink scheduling by using CSI, and performs code modulation and modulation on the data.
• the base station performs scheduling according to the CSI reported by the terminal, and determines a downlink modulation and coding scheme (MCS: Modulation and Coding Scheme) index and resource allocation information.
• MCS Modulation and Coding Scheme
• the LTE protocol of Rel-8 defines a modulation and transport block size table (Modulation and TBS index table for PDSCH, which may also be referred to as a downlink MCS table) for the Physical Downlink Shared Channel (PDSCH).
• the table has a total of 32 levels, basically each level corresponds to one MCS index, and each MCS index essentially corresponds to one MCS.
• the resource allocation information indicates the number of physical resource blocks (PRB: Number Physical Resource Block) that the downlink transmission needs to occupy.
• PRB Number Physical Resource Block
• TBS Transport block size
• the TBS can be obtained after the MCS index and the PRB are given.
• MCS/NPRB/TBS coded modulation parameters
• the base station can perform coded modulation of downlink data for downlink transmission.
• the terminal After receiving the downlink transmission data, the terminal needs to obtain the MCS index and resource allocation information of the downlink transmission for data processing.
• the base station sends the MCS index and resource allocation information through Downlink Control Information (DCI: Downlink Control Information).
• DCI Downlink Control Information
• the base station uses a specific Radio Network Temporary Identity (RNTI) to scramble the cyclic redundancy check (CRC) bit corresponding to the downlink control information.
• the downlink control information is sent in a specific downlink control information format (DCI format) through a physical downlink control channel (PDCCH: Physical Downlink Control Channel).
• DCI format Downlink control information format
• PDCCH Physical Downlink Control Channel
• the terminal performs blind retrieval on the Common Search Space (CSS: Common Search Space) and the User Equipment (UE: User-specific Search Space) to obtain downlink control information.
• the terminal After acquiring the downlink control information, the terminal obtains the TBS according to the TBS table, and is used for demodulation and decoding.
• the DCI formats related to the PDSCH include the following: DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format 1D, DCI format 2, DCI format 2A, DCI format 2B, DCI format 2C DCI format 2D, etc. .
• the base station may obtain an uplink channel parameter by using a sounding reference signal (SRS: Sounding Reference Signal) sent by the UE, and determine an MCS index and resource allocation information for the uplink transmission of the UE based on the acquired channel parameter.
• SRS Sounding Reference Signal
• the LTE protocol of Rel-8 defines a modulation and transport block size table (Modulation and TBS index table for PUSCH, which may also be referred to as an uplink MCS table) for the Physical Uplink Shared Channel (PUSCH).
• the base station sends the MCS index and resource allocation information through the downlink control information.
• the terminal can use the information to perform coding and modulation of the uplink data, and send the uplink data on the corresponding PUSCH resource.
• the DCI formats related to PUSCH include the following: DCI format O, DCI format 3 DCI format 3 A, DCI format 4. It should be noted that the downlink MCS table and the uplink MCS table may be collectively referred to as an MCS table.
• the LTE system After experiencing several versions of Rel-8/9/lO/ll, the LTE system has been researching R12 technology.
• the uplink and downlink support modulation coding modes of 64 Quadrature Amplitude Modulation (QAM).
• QAM Quadrature Amplitude Modulation
• small cells require higher data transmission rates and higher system spectral efficiency, and require higher order modulation and coding methods, such as 256 QAM.
• Existing standards cannot meet this need.
• the conventional table of the existing LTE standard that is, the CQI table/MCS table/TBS table supports a modulation coding mode of up to 64 QAM and a spectrum efficiency of about 5.5547 bit/s/Hz.
• the conventional table ie, the existing CQI table, the MCS table, the TBS table
• the conventional table cannot support the higher order modulation mode.
• high-order modulation methods such as 256 QAM and 1024QAM
• it is necessary to design enhanced tables new CQI tables, MCS tables, TBS tables) that support high-order modulation methods.
• the conventional table of the communication system cannot support the higher-order modulation mode, and the specific high-order modulation mode enhancement table and the configuration of the regular table are not solved. Therefore, current communication systems cannot support higher order modulation methods.
• a conventional table cannot support a technical problem of a higher demodulation mode, and the present invention provides a high-order code modulation processing method and apparatus, a base station, and a terminal.
• a high-order coding modulation processing method including: a base station selecting a modulation and coding policy MCS table according to a transmission type and predefined information, where the MCS table includes The MCS table supporting the M-th order modulation mode and the MCS table not supporting the M-th order modulation mode, M>64; the base station sends downlink control signaling to the terminal, where the downlink control signaling includes a modulation and coding mode domain/ MCS And wherein the / MCS is based on an MCS table supported by the base station or not supporting the M-order modulation mode.
• the base station selects a modulation and coding policy MCS table according to the transmission type and the predefined information, including: when the transmission type is downlink transmission, the base station selects a downlink MCS table according to the predefined information, where the The definition information includes: a table type configured by the subframe set, and the table type is a channel quality indication CQI table supporting the M-th order modulation mode or a CQI table not supporting the M-th order modulation mode.
• the subframe set includes: a subframe set 0 and/or a subframe set 1 configured by the base station.
• the method further includes at least one of the following: when the subframe set 0 or/and the subframe set 1 configures the channel supporting the M-th order modulation mode
• the downlink subframe uses the MCS table supporting the M-order modulation mode
• the subframe set i uses the MCS table supporting the M-order modulation mode
• the frame set i configuration does not support the CQI table of the M-order modulation mode
• the subframe includes at least one of the following: an MCS table that supports or does not support the M-order modulation mode through proprietary high-level signaling; a predefined use MCS table that does not
• the base station selects a modulation and coding policy MCS table according to the transmission type and the predefined information, including: when the transmission type is uplink transmission, the base station selects an uplink MCS table according to the predefined information, where the predefined information includes the following: At least one of the following: a table type configured in the downlink transmission, the table type includes at least one of the following: a CQI table supporting the M-th order modulation mode, an MCS table supporting the M-th order modulation mode, and a DCI format format, where the DCI carries a modulation and coding mode field/ MCS; a search space corresponding to the downlink control signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where the downlink control signaling carries a modulation and coding manner Domain/ MCS; cyclic redundancy code check CRC scrambling mode corresponding to downlink control signaling, the CRC scrambling mode includes at least one of the following:
• the method further includes at least one of the following: when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or supports the M-th order modulation In the MCS table of the mode, the uplink MCS table supporting the M-th order modulation mode is configured for the uplink transmission of the specific scenario; when the downlink transmission configuration supports the CQI table of the M-order modulation mode and/or the MCS table supporting the M-order modulation mode, and the specific scenario
• the uplink transmission transmits the channel state information CSI on the physical uplink shared channel PUSCH
• the uplink MCS table that does not support the M-th order modulation mode is configured for the uplink transmission; the configuration signaling sent by the base station selects support for the uplink transmission or The upstream MCS table of the M-order modulation mode is not supported.
• the specific scenario includes: time division duplex TDD transmission.
• the base station selects an uplink MCS table according to at least one of the following: a DCI format, a search space corresponding to the downlink control signaling, a CRC scrambling mode corresponding to the downlink control signaling, and an uplink transmission mode, where the method further Including at least one of the following: when the base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format to be only the DCI format 0, if the search space corresponding to the downlink control signaling is a common search space, the base station selects not Supporting the uplink MCS table of the M-th order modulation mode; if the search space corresponding to the downlink control signaling is the UE-specific search space, the base station selects an uplink MCS table supporting the M-th order modulation mode; and when the base station configures the uplink transmission mode 1 for the terminal If the DCI format is only configured as DCI format 0, if the CRC scram
• the uplink MCS table if the base station sends the downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is the UE-specific search space, the base station selects the uplink MCS table that supports the M-th order modulation mode;
• the base station sends downlink control signaling through the DCI format 4, and the base station selects an uplink MCS table that supports the M-th order modulation mode; when the base station configures the terminal In the case of the transmission mode 2, or the DCI format 0 and the DCI format 4 are configured, the base station sends the downlink control signaling through the DCI format 0, and the CRC scrambling mode corresponding to the downlink control signaling is the SPS C-RNTI.
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the CRC scrambling mode corresponding to the downlink control signaling is C-RNTI scrambling And the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station sends the downlink control signaling by using the DCI format 4, the base station selects an uplink MCS table that supports the M-th order modulation mode; If the terminal configures the uplink transmission mode 2, or configures the DCI format 0 and the DCI format 4, the base station sends the downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is a common search space.
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the downlink control signaling pair
• the required search space is the UE-specific search space, and the CRC scrambling mode is scrambled by the SPS C-RNTI, and the base station selects an uplink MCS table that does not support the M-th order modulation mode;
• the base station sends the downlink control through the DCI format 0 Signaling, and the search space corresponding to the downlink control signaling is a UE-specific search space, and the CRC scrambling mode is C-RNTI scrambling, and the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station passes the DCI format 4, when the downlink control signaling is sent, the base station selects an uplink table that supports the M-th order modulation mode; when the base station configures the uplink transmission mode 2 for the terminal, or
• the method further includes at least one of the following: For the subframe set 2 and the subframe set 3, the base station respectively Configuring an uplink MCS table that supports or does not support the M-th order modulation mode, where the subframe sets 2 and 3 are an uplink subframe set configured by the base station, or a predefined subframe set; the base station only supports or supports the subframe set 2 configuration.
• the subframe set 3 uses the uplink MCS table that does not support the M-th order modulation mode; the base station only configures the uplink MCS table that supports or does not support the M-order modulation mode for the subframe set 3, and the subframe set 2 Use an upstream MCS table that does not support M-order modulation.
• the base station sends the base station to the terminal to send the downlink control signaling to the terminal, where the downlink control signaling includes The transmission power control command TPC command field, the TPC command field includes at least one of the following features:
• the TPC command field is represented by N1 bits, and N1 is not a positive integer less than 1, and the TPC command value corresponding to the TPC command field includes other integers other than ones and ones;
• the TPC The command field is represented by N2 bits, N2 is a positive integer greater than or equal to 2, and the TPC command value corresponding to the TPC command field includes other integers other than a 1, 0, 1, 3.
• a high-order coding modulation processing method including: receiving, by a terminal, downlink control signaling sent by a base station, where the downlink control signaling includes a modulation and coding manner domain / MCS, the / MCS MCS table based on the base station according to a predefined transmission type and the selected information, wherein the MCS table comprising: a support MCS table M-ary modulation method, and the MCS table does not support M-ary modulation method, M>64;
• the terminal performs coded modulation on uplink data according to / MCS , or performs demodulation and decoding on downlink data.
• the base station selects a downlink MCS table according to the predefined information, where the predefined information includes: a table type configured by a subframe set, where the table type is the support M
• the channel quality of the order modulation mode indicates a CQI table or a CQI table that does not support the M-order modulation mode.
• the subframe set includes: a subframe set 0 and/or a subframe set 1 configured by the base station.
• the method further includes at least one of the following: when the subframe set 0 or/and the subframe set 1 configuration supports M In the CQI table of the modulation mode, the downlink subframe uses the MCS table supporting the M-order modulation mode; when the subframe set i is configured to support the CQI table of the M-order modulation mode, the subframe set i uses the MCS table supporting the M-order modulation mode; When the subframe set i is configured to not support the CQI table of the M-th order modulation mode, the subframe set i uses the M-order modulation mode not supported.
• the MCS table is predefined; the MCS table that does not support the M-th order modulation mode is predefined; when at least one of the subframe set 0 and the subframe set 1 is configured to support the CQI table of the M-th order modulation mode, the MCS table supporting the M-order modulation mode is used.
• the base station selects uplink according to the predefined information.
• the MCS table includes at least one of the following: a table type configured when the downlink is transmitted, and the table type includes at least one of the following: a CQI table supporting the M-th order modulation mode, and an MCS table supporting the M-th order modulation mode; a DCI format, where the DCI carries a modulation and coding mode field/ MCS; a search space corresponding to downlink control signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where The downlink control signaling carries a modulation and coding mode field/ MCS; a cyclic redundancy code check CRC scrambling mode corresponding to the downlink control signaling, and the CRC scrambling mode includes at least one of the following: SPS cell radio network temporary identifier C - RNTI scrambling, C-RNTI scrambling, wherein the downlink control signaling carries a modulation and coding mode field / MCS; an uplink transmission
• the DCI format includes at least one of the following: DCI format 0, DCI format 4.
• the method further includes at least one of the following: when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or supports the M-th order modulation In the MCS table of the mode, the uplink MCS table supporting the M-th order modulation mode is configured for the uplink transmission of the specific scenario; when the downlink transmission configuration supports the CQI table of the M-order modulation mode and/or the MCS table supporting the M-order modulation mode, and the specific scenario When the uplink transmission transmits the channel state information CSI on the physical uplink shared channel PUSCH, the uplink MCS table that does not support the M-th order modulation mode is configured for the uplink transmission; the configuration signaling sent by the base station selects support for the uplink transmission or The upstream MCS table of the M-order modulation mode is not
• the specific scenario includes: time division duplex TDD transmission.
• the base station selects an uplink MCS table according to at least one of the following: a DCI format, a search space corresponding to the downlink control signaling, a CRC scrambling mode corresponding to the downlink control signaling, and an uplink transmission mode, where the method further Including at least one of the following: when the base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format to be only the DCI format 0, if the search space corresponding to the downlink control signaling is a common search space, the base station selects not Supporting the uplink MCS table of the M-th order modulation mode; if the search space corresponding to the downlink control signaling is the UE-specific search space, the base station selects an uplink MCS table supporting the M-th order modulation mode; and when the base station configures the uplink transmission mode 1 for the terminal If the DCI format is only configured as DCI format 0, if the CRC scrambling mode corresponding to
• the uplink MCS table of the modulation mode if the CRC scrambling mode corresponding to the downlink control signaling is C-RNTI scrambling, the base station selects an uplink MCS table supporting the M-th order modulation mode; and when the base station configures an uplink transmission mode for the terminal 1.
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the downlink control signaling corresponds to The search space is the UE-specific search space and the CRC scrambling mode is scrambled by the SPS C-RNTI, and the base station selects the uplink MCS table that does not support the M-th order modulation mode; if the search space corresponding to the downlink control signaling is the UE-specific search If the space and the CRC scrambling mode are C-RNTI scrambling, the base station selects the uplink MCS table that supports the M-th order modulation mode; when the base station configures the uplink transmission mode 2 for the terminal, or configures DCI format 0 and DCI format 4 for both DCIs.
• the base station if the base station sends the downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is a common search space, the base station Selecting an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through DCI format 0, and the search space corresponding to the downlink control signaling is a UE-specific search space, the base station selects to support the M-th order The uplink MCS table of the modulation mode; if the base station sends the downlink control signaling through the DCI format 4, the base station selects an uplink MCS table supporting the M-th order modulation mode; when the base station configures the uplink transmission mode 2, or configures the terminal In the case of DCI format 0 and DCI format 4, if the base station transmits downlink control signaling through DCI format 0, and the CRC scrambling mode corresponding to the downlink control signaling is SPS C-RNTI scrambling, the base station Selecting an uplink
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is a UE-specific search If the CRC scrambling mode is scrambled by the SPS C-RNTI, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the downlink control signaling corresponds to The search space is a UE-specific search space, and the CRC scrambling mode is C-RNTI scrambling, then the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station transmits downlink control signaling through the DCI format 4, the base station Select an upstream table that supports the M-order modulation method; When the base station configures the uplink transmission mode 2 for the terminal, or configures
• the uplink MCS table of the modulation mode if the base station sends the downlink control signaling through the DCI format 4, the base station selects an uplink MCS table supporting the M-th order modulation mode.
• the method further includes at least one of the following: for the subframe set 2 and the subframe set 3, the base station respectively configures support or The uplink MCS table of the M-th order modulation mode is not supported, and the subframe sets 2 and 3 are the uplink subframe set configured by the base station, or the predefined subframe set; the base station only supports or does not support the M-order of the subframe set 2 configuration.
• the uplink MCS table of the modulation mode, the subframe set 3 uses the uplink MCS table that does not support the M-order modulation mode; the base station only configures the uplink MCS table that supports or does not support the M-order modulation mode for the subframe set 3, and the subframe set 2 does not use Supports the upstream MCS table of the M-order modulation mode.
• the terminal receives the downlink control signaling sent by the base station, where the downlink control signaling includes at least: a transmission power control command TPC command field, where the TPC command field includes at least One of the following features:
• the TPC command field is represented by N1 bits, N1 is a positive integer not less than 1, and the TPC command value corresponding to the TPC command field is included in An integer other than one and one;
• the TPC command field is represented by N2 bits, and N2 is a positive value greater than or equal to 2.
• a high-order coding modulation processing apparatus including: a selection module, configured to select a modulation and coding strategy MCS table according to a transmission type and predefined information, where The MCS table includes: an MCS table that supports the M-th order modulation mode, and an MCS table that does not support the M-th order modulation mode, M>64.
• the sending module is configured to send downlink control signaling to the terminal, where the downlink control signaling is At least one of the following is included: a modulation and coding mode field/ MCS , wherein the / MCS is based on an MCS table supported by the base station or not supporting the M-order modulation mode.
• the selecting module is further configured to: when the transmission type is downlink transmission, select a downlink MCS table according to the predefined information, where the predefined information includes: a table type configured by a subframe set, The table type is the MCS table supporting the M-th order modulation mode or the MCS table not supporting the M-th order modulation mode.
• the selecting module is further configured to: when the transmission type is uplink transmission, select an uplink MCS table according to the predefined information, where the predefined information includes at least one of the following: a table class configured during downlink transmission
• the table type includes at least one of the following: a CQI table supporting an M-th order modulation mode, an MCS table supporting an M-th order modulation mode, and a DCI format format, where the DCI carries a modulation and coding mode domain/ MCS;
• the search space corresponding to the signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where the downlink control signaling carries a modulation and coding mode domain/ MCS; and downlink control signaling corresponds to
• the cyclic redundancy code check CRC scrambling mode, the CRC scrambling mode includes at least one of the following: the SPS cell radio network temporary identifier C-RNTI scrambling, C-RNTI scrambling, wherein the
• the device includes: a receiving module, configured to receive downlink control signaling sent by the base station, where the downlink control signaling includes at least one of the following: modulation and coding mode / MCS, wherein the / MCS MCS table based on the base station transmission type and selected according to pre-defined information.
• the MCS table includes: an MCS table supporting an M-th order modulation mode, and an MCS table not supporting an M-th order modulation mode, M>64; and a data processing module configured to perform coding and modulation on the uplink data according to the / MCS , or set to Demodulation decoding of downlink data is performed according to / MCS .
• the receiving module is further configured to: when the transmission type is downlink transmission, the base station selects a downlink MCS table according to the predefined information, and when the predefined information includes the following information, the receiving/ MCS: sub The table type of the frame set configuration, the table type is the MCS table supporting the M-th order modulation mode or the MCS table not supporting the M-th order modulation mode.
• the receiving module is further configured to: when the transmission type is uplink transmission, the base station selects a downlink MCS table according to the predefined information, and the predefined information includes at least one of the following : receiving/ MCS: downlink a table type configured for transmission, the table type includes at least one of the following: a CQI table supporting an M-th order modulation mode, an MCS table supporting an M-th order modulation mode, and a DCI format format, where the DCI carries a modulation and coding mode domain / MCS; a search space corresponding to the downlink control signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where the downlink control signaling carries a modulation and coding mode domain/MCS; a cyclic redundancy code check CRC scrambling mode corresponding to the control signaling, where the CRC scrambling mode includes at least one of the following: an SPS cell radio network temporary identifier C-RNTI scr
• a base station including: the above-described modulation processing apparatus including the high-order coding of the selection module and the transmission module.
• a terminal comprising: the above-described modulation processing apparatus including the high-order encoding of the receiving module and the data processing module.
• a base station selects the MCS table according to the transmission type and transmitting a predefined message and / MCS MCS table based on the technical means of the base station selection, the problem in the related art, the table can not support the conventional technical problems later demodulation mode, Thereby, the transmission of the base station and the terminal based on the higher order modulation mode is realized.
• FIG. 1 is a flow chart of a modulation processing method for high-order encoding according to an embodiment of the present invention
• FIG. 2 is a block diagram showing a configuration of a high-order encoding modulation processing apparatus according to an embodiment of the present invention
• FIG. 1 is a flow chart of a modulation processing method for high-order encoding according to an embodiment of the present invention
• FIG. 2 is a block diagram showing a configuration of a high-order encoding modulation processing apparatus according to an embodiment of the present invention
• FIG. 1 is a flow chart of a modulation processing method for high-order encoding according to an embodiment of the present invention
• FIG. 2 is a block diagram showing a configuration of a high-order encoding modulation processing apparatus according to an embodiment of the present invention
• Step S102 A base station selects an MCS table according to a transmission type and predefined information, where the MCS table includes: an MCS table supporting an M-th order modulation mode, and an MCS table not supporting an M-th order modulation mode.
• Step S104 The base station sends downlink control signaling to the terminal, where the downlink control signaling includes: a modulation and coding mode field/ MCS , where the / MCS is based on the MCS supported by the base station or not supported by the M-th order modulation mode form.
• the base station selects the MCS table according to the transmission type and the predefined information (the MCS table supporting the M-th order modulation mode, and the MCS table that does not support the M-order modulation mode, M>64), and issues the modulation and
• the coding mode domain can solve the technical problem that the conventional table cannot support the higher demodulation mode, and further realize the transmission of the base station and the terminal based on the higher order modulation mode.
• the base station selects a downlink MCS table according to the predefined information, where the predefined information includes: a table type configured by a subframe set, and the table type is the foregoing support M.
• the CQI table of the order modulation mode or the CQI table of the M mode modulation mode is not supported.
• the subframe set includes: a subframe set 0 and/or a subframe set 1 configured by the foregoing base station.
• the subframe set 0 is a high-level configured subframe set C csl , o for CSI measurement
• the subframe set 1 is a high-level configured subframe set Ccsu for CSI measurement
• the subframe set 0 is a high-level CSI measurement for the sub-frame set CCSU configuration, a sub-set of subframes for measurement of high-level configuration of CSI frame set C CSI, 0;
• the base station according to the type of subframe set configuration table selection downlink MCS table, comprising At least one of the following: when the subframe set 0 (frame set 0 ) or / and the subframe set 1 ( subframe set 1 ) are configured to support the channel quality indication CQI table of the M-th order modulation mode, the downlink subframe uses the M-order modulation mode.
• the downlink subframe may be pre-defined to use an MCS table supporting the M-th order modulation mode, where "pre-defined use” means that the configuration is not through higher layer signaling.
• pre-defined use means that the configuration is not through higher layer signaling.
• the downlink subframes are pre-defined to use an MCS table that supports the M-th order modulation mode, and the downlink control signaling including the modulation and coding mode domain in the downlink subframe needs to support the M-th order modulation mode, and the downlink is The CRC scrambling mode of control signaling needs to support the M-order modulation mode.
• the subframe set i When the subframe set i is configured to support the CQI table of the M-th order modulation mode, the subframe set i uses the MCS table supporting the M-th order modulation mode; when the subframe set i is configured to not support the CQI table of the M-order modulation mode, the subframe set i is used.
• the base station selects an uplink MCS table according to the predefined information, where the predefined information includes at least one of the following:
• the table type configured in the downlink transmission the above table type includes at least one of the following: a CQI table supporting the M-th order modulation mode, and an MCS table supporting the M-th order modulation mode;
• the DCI format format where the DCI carries a modulation and coding mode field/ MCS; a search space corresponding to the downlink control signaling, where the search space includes at least one of the following: a common search space, a UE-specific search space, where the DCI carries modulation and Encoding mode field / MCS; Cyclic Redundancy Check (CRC) scrambling mode corresponding to downlink control signaling, the above CRC scrambling mode includes at least one of the following: SPS C-RNTI scrambling, C-RNTI Scrambling, wherein the DCI carries a modulation and coding mode field/ MCS; an uplink transmission mode; a set of uplink subframes configured by the base station.
• CRC Cyclic Redundancy Check
• the subframe set may also include the foregoing subframe set 0 or subframe set 1.
• the above DCI format includes at least one of the following: DCI format 0, DCI format 4.
• the base station further includes at least one of the following: when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or the MCS table that supports the M-th order modulation mode,
• the uplink transmission configuration of the specific scenario supports the uplink MCS table of the M-th order modulation mode; when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or the MCS table of the M-order modulation mode, and the uplink transmission of the specific scenario is shared in the physical uplink.
• an uplink MCS table that does not support the M-th order modulation mode is configured for the uplink transmission; the uplink signaling is selected by the base station to select an uplink that supports or does not support the M-th order modulation manner.
• MCS table includes: Time Division Duplex (TDD) transmission.
• the foregoing base station selects an uplink MCS table according to at least one of the following: a DCI format format, a search space corresponding to the downlink control signaling, a CRC scrambling mode corresponding to the downlink control signaling, and an uplink transmission mode, where the foregoing method further includes at least one of the following
• the base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format to be the DCI format 0, if the search space corresponding to the downlink control signaling is a common search space, the base station selects an uplink that does not support the M-th order modulation mode.
• the base station selects an uplink MCS table that supports the M-th order modulation mode; when the base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format only as When DCI format 0, if the CRC scrambling mode corresponding to the downlink control signaling is SPS C-RNTI scrambling, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the downlink control signaling corresponds to the CRC scrambling mode For scrambling C-RNTI, the base station selects an uplink MCS table supporting the M-th order modulation mode; when the base station is opposite to the terminal If the uplink transmission mode is set to 1, or the DCI format is only configured as DCI format 0, if the search space corresponding to the downlink control signaling is a common search space, the base station selects an uplink MCS table that does not support the M-th order modulation mode; If the search space corresponding to the downlink control signaling is the UE-specific search space, the base
• the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 4, the base station selects an uplink MCS table that supports the M-th order modulation mode; and when the base station configures an uplink transmission mode for the terminal 2, or when DCI format 0 and DCI format 4 are configured, if the base station sends downlink control signaling through DCI format 0, and the CRC scrambling mode corresponding to the downlink control signaling is SPS C-RNTI scrambling, The base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through DCI format 0, and the CRC scrambling mode corresponding to the downlink control signaling is C-RNTI scrambling, the base station selects support The uplink MCS table of the M-th order modulation mode; if the base station sends the downlink control signaling through the DCI format 4, the base station selects an uplink
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is the UE-specific search space, the CRC scrambles If the mode is scrambled by the SPS C-RNTI, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is UE-specific In the search space, the CRC scrambling mode is C-RNTI scrambling, and the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station transmits downlink control signaling through the DCI format 4, the base station selects to support the M-order modulation mode.
• Uplink table when the above base station configures the uplink transmission mode 2 for the terminal, or configures DCI format 0 and DCI format 4 DCI In the format, if the base station sends the downlink control signaling through the DCI format 0, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends the downlink control signaling through the DCI format 4, the base station selects The uplink MCS table supporting the M-th order modulation mode.
• the base station When the base station selects the uplink MCS table according to the subframe set selection table type configured by the base station, the base station further includes at least one of the following for the subframe set 2 and the subframe set 3, where the base station respectively Configure an upstream MCS table that supports or does not support M-order modulation.
• the subframe sets 2 and 3 are an uplink subframe set configured by a base station, or a predefined subframe set.
• the predefined set of subframes includes at least one of the following: a set of subframes divided according to different uplink-downlink configuration in the TDD system, and a sub-frame according to odd and even subframe numbers in the FDD system. Frame collection.
• the method includes at least one of the following: For the subframe set 2 and the subframe set 3, the base station respectively configures an uplink MCS table that supports or does not support the M-th order modulation mode.
• the subframe sets 2 and 3 are an uplink subframe set configured by a base station, or a predefined subframe set; the base station only configures an uplink MCS table that supports or does not support the M-order modulation mode for the subframe set 2, and the subframe set 3
• the uplink MCS table that does not support the M-th order modulation mode is used.
• the base station only configures the uplink MCS table that supports or does not support the M-th order modulation mode, and the subframe set 2 uses the uplink MCS table that does not support the M-th order modulation mode.
• the TPC command field includes at least one of the following features: When the downlink control signaling is sent through the DCI format 3A, the TPC command field is represented by N1 bits, and N1 is not less than 1.
• the TPC command value corresponding to the TPC command field includes but is not limited to integers other than ones and ones; when the downlink control signaling is sent through other DCI formats other than DCI format 3A, the TPC command field It is represented by N2 bits, N2 is a positive integer greater than or equal to 2, and the TPC command value corresponding to the TPC command field includes but is not limited to other integers except one 1, 0, 1, 3.
• a high-order coding modulation processing apparatus is further provided. As shown in FIG.
• the apparatus includes: a selection module 20 configured to select a modulation and coding policy MCS table according to a transmission type and predefined information, where
• the MCS table includes: an MCS table supporting the M-th order modulation mode, and an MCS table not supporting the M-th order modulation mode, M>64;
• the sending module 22 is connected to the selecting module 20, and configured to send downlink control signaling to the terminal, where
• the downlink control signaling includes at least one of the following: a modulation and coding mode field/ MCS , a TPC commando, wherein the IMCS is based on a base station selected MCS table that supports or does not support the M-order modulation mode.
• the selection module 20 is further configured to: when the transmission type is downlink transmission, select a downlink MCS table according to the foregoing predefined information, where the predefined information includes: a table type configured by a subframe set, where the table type is the foregoing M-order supported The MCS table of the modulation mode or the MCS table of the M-order modulation mode is not supported.
• the selection module 20 is further configured to: when the transmission type is uplink transmission, select an uplink MCS table according to the predefined information, where the predefined information includes at least one of the following: a table type configured during downlink transmission, where the table type includes at least the following One: A CQI table supporting M-order modulation mode, and an MCS table supporting M-order modulation mode;
• the search space corresponding to the downlink control signaling includes at least one of the following: a common search space, a UE-specific search space, and a cyclic redundancy code check CRC scrambling method corresponding to the downlink control signaling,
• the CRC scrambling mode includes at least one of the following: SPS cell radio network temporary identifier C-RNTI scrambling, C-RNTI scrambling; Uplink transmission mode; a set of subframes configured by the base station.
• the selection module 20 and the sending module 22 may be represented as a software module or a hardware module. For the latter, the selection module 20 may be located in the first processor, and the sending module 22 is located in the second processor.
• Both the selection module 20 and the transmission module 22 are located in the first processor.
• a base station is provided, including: the high-order coding modulation processing apparatus described in any of the above.
• another high-order coding modulation processing method is further provided, and the method is applicable to the terminal. As shown in FIG.
• the method includes: Step S302: The terminal receives downlink control signaling sent by the base station, where The downlink control signaling includes a modulation and coding mode domain IMCS, and the foregoing IMCS is based on an MCS table selected by the base station according to the transmission type and the predefined information, and the MCS table includes: an MCS table supporting the M-th order modulation mode, and an MCS not supporting the M-th order modulation mode. Table, M>64; Step S304, the terminal performs coded modulation on the uplink data according to the IMCS, or performs demodulation and decoding on the downlink data.
• the downlink control signaling includes a modulation and coding mode domain IMCS
• the foregoing IMCS is based on an MCS table selected by the base station according to the transmission type and the predefined information
• the MCS table includes: an MCS table supporting the M-th order modulation mode, and an MCS not supporting the M-th order modulation mode. Table, M>64;
• the foregoing transmission type is downlink transmission, and the base station selects a downlink MCS table according to the foregoing predefined information, where the predefined information includes: a table type configured by a subframe set, where the table type is a CQI table supporting the M-th order modulation mode or not supported. CQI table of M-order modulation mode.
• the foregoing subframe set may include, but is not limited to, a subframe set 0 and/or a subframe set 1 configured by the foregoing base station.
• the base station when the base station selects the downlink MCS table, it includes at least one of the following: when the subframe set 0 (the subframe set 0 ) or/and the subframe set 1 (the subframe set 1 ) configure the channel supporting the M-order modulation mode
• the downlink subframe uses an MCS table that supports the M-order modulation scheme.
• the subframe set i when the subframe set i is configured to support the CQI table of the M-th order modulation mode, the subframe set i uses the MCS table supporting the M-th order modulation mode; when the subframe set i is configured to not support the CQI table of the M-order modulation mode, the subframe set i is used.
• the MCS table of the M-order modulation mode is not supported.
• i 0, 1; for the subframes other than the subframe set 0 and the subframe set 1, at least one of the following: configuring the MCS table with or without the M-order modulation mode by using a dedicated high-level signaling configuration; Pre-defined use of MCS tables that do not support M-order modulation; When at least one of the subframe set 0 and the subframe set 1 configures a channel quality indication CQI table supporting the M-th order modulation scheme, an MCS table supporting the M-order modulation scheme is used.
• the foregoing transmission type is an uplink transmission
• the foregoing base station selects an uplink MCS table according to the foregoing predefined information
• the predefined information includes at least one of the following: a table type configured during downlink transmission, where the table type includes at least one of the following: CQI table of modulation mode, MCS table supporting M-order modulation mode;
• the DCI format format where the DCI carries a modulation and coding mode field/ MCS; a search space corresponding to the downlink control signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where, downlink control signaling Carrying the modulation and coding mode field/ MCS; the cyclic redundancy code check CRC scrambling mode corresponding to the downlink control signaling, the CRC scrambling mode includes at least one of the following: SPS cell radio network temporary identifier C-RNTI scrambling, C - RNTI scrambling, wherein the downlink control signaling carries a modulation and coding mode field / MCS; an uplink transmission mode; a set of uplink subframes configured by the base station; and a predefined set of uplink subframes.
• the above DCI format includes but is not limited to at least one of the following: DCI format 0, DCI format 4.
• DCI format When the uplink base station selects the uplink MCS table according to the table type configured in the downlink transmission, when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or the MCS table of the M-order modulation mode, the uplink transmission configuration support for the specific scenario is supported.
• the uplink MCS table of the M-order modulation mode when the downlink transmission configuration supports the CQI table of the M-th order modulation mode and/or the MCS table of the M-order modulation mode, and the uplink transmission of the specific scenario transmits the channel state information on the physical uplink shared channel PUSCH In the CSI, an uplink MCS table that does not support the M-th order modulation mode is configured for the uplink transmission.
• the uplink MCS table that supports or does not support the M-th order modulation mode is selected for the uplink transmission by the configuration signaling sent by the base station.
• the specific scenarios described above include, but are not limited to, TDD transmissions.
• the foregoing base station selects the uplink MCS table according to at least one of the following: the DCI format format, the search space corresponding to the downlink control signaling, the CRC scrambling mode corresponding to the downlink control signaling, and the uplink transmission mode, and may also pass at least one of the following manners Select the MCS table:
• the foregoing base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format as only the DCI format.
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the search space corresponding to the downlink control signaling is a UE-specific search space, the base station Select the uplink MCS table that supports the M-th order modulation mode; when the base station configures the uplink transmission mode 1 for the terminal, or configure the DCI format as the DCI format only
• the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the CRC scrambling mode corresponding to the downlink control signaling is C - RNTI scrambling, the base station selects an uplink MCS table supporting the M-th order modulation mode; when the base station configures the uplink transmission mode 1 for the terminal, or configures the DCI format to only DCI format 0, if the downlink control signaling corresponds to the search If the space is a common search space, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the search space corresponding to the downlink control signaling is a UE-specific search space and the CRC scrambling mode is SPS C-RNTI scrambling, The base station selects an uplink MCS table that does not support the M-th order modulation mode.
• the base station selects an uplink that supports the M-th order modulation mode.
• MCS table when the above base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0 and the DCI format 4 DCI format, if the above base station passes the DCI format 0 Sending the downlink control signaling, and the search space corresponding to the downlink control signaling is a common search space, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends the downlink control signaling by using the DCI format 0, and The search space corresponding to the downlink control signaling is a UE-specific search space, and the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 4, the base station selects to support
• the uplink MCS table of the mode when the base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0 and the DCI format 4 DCI format, if the base station sends the downlink control signaling through the DCI format 0, and the downlink control signaling If the corresponding CRC scrambling mode is scrambled by the SPS C-RNTI, the base station selects an uplink MCS table that does not support the M-th order modulation mode; if the base station sends downlink control signaling through the DCI format 0, and the CRC corresponding to the downlink control signaling If the scrambling mode is scrambled by the C-RNTI, the base station selects an uplink MCS table that supports the M-th order modulation mode; The base station sends the downlink control signaling by using the DCI format 4, and the base station selects the uplink MCS table that supports the M-th order modulation mode.
• the base station When the base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0 and the DCI format 4 DCI format. If the base station sends downlink control signaling through the DCI format 0, and the search space corresponding to the downlink control signaling is a common search space, the base station selects an uplink that does not support the M-th order modulation mode.
• the base station selects an uplink MCS table that supports the M-th order modulation mode; if the base station sends the downlink control signaling through the DCI format 4, the base station selects an uplink table that supports the M-order modulation mode, and when the base station configures the uplink transmission mode 2, or When DCI format 0 and DCI format 4 are configured, if the base station sends downlink control signaling through DCI format 0, the base station selects an uplink MCS table of the M-th order modulation mode; if the base station sends the downlink control signaling through the DCI format 4, the base station selects an uplink table that supports the M-order modulation mode, and when the base station configures the uplink transmission mode 2, or When DCI format 0 and DCI format 4 are configured, if the base station sends downlink control signaling through DCI format 0, the base station selects an
• the method further includes at least one of the following: For the subframe set 2 and the subframe set 3, the base station is configured to support or not support the M-order modulation mode, respectively. Upstream MCS table.
• the subframe sets 2 and 3 are an uplink subframe set configured by a base station, or a predefined subframe set.
• the method includes at least one of the following: For the subframe set 2 and the subframe set 3, the base station respectively configures an uplink MCS table that supports or does not support the M-th order modulation mode.
• the subframe sets 2 and 3 are an uplink subframe set configured by a base station, or a predefined subframe set.
• the base station only configures the uplink MCS table that supports or does not support the M-th order modulation mode for the subframe set 2, and uses the uplink MCS table that does not support the M-th order modulation mode for the subframe set 3; the base station only supports or does not support the subframe set 3 configuration.
• the uplink MCS table of the order modulation mode, and the subframe set 2 uses an uplink MCS table that does not support the M-order modulation scheme.
• the terminal receives the downlink control signaling sent by the base station, where the downlink control signaling further includes: a transmission power control command TPC command field, where the TPC command field includes at least the following features.
• the TPC command field is represented by N1 bits, N1 is a positive integer not less than 1, and the TPC command value corresponding to the TPC command field includes but is not limited to one And an integer other than 1;
• the TPC command field is represented by N2 bits, N2 is a positive integer greater than or equal to 2, and the TPC command field
• the corresponding TPC command values include, but are not limited to, integers other than one 1, 0, 1, 3.
• a high-order coding modulation processing apparatus is also provided, which can be applied to a terminal. As shown in FIG.
• the apparatus includes: a receiving module 40, configured to receive downlink control signaling sent by a base station, and the downlink Control signaling includes at least one of the following: modulation and coding mode domain / MCS .
• the foregoing IMCS is based on an MCS table selected by the base station according to the transmission type and the predefined information.
• the MCS table includes: an MCS table that supports the M-th order modulation mode, and an MCS table that does not support the M-th order modulation mode, M>64.
• the downlink control information may further include: a TPC commando data processing module 42.
• the receiving module 40 configured to perform coded modulation of uplink data according to the IMCS, or set to perform demodulation and decoding of downlink data according to the IMCS.
• the receiving module 40 is further configured to: when the foregoing transmission type is downlink transmission, the base station selects a downlink MCS table according to the predefined information, and when the predefined information includes the following information, receiving an IMCS: a table type configured by a subframe set, the foregoing table The type is the above MCS table supporting the M-th order modulation mode or the MCS table not supporting the M-th order modulation mode.
• the receiving module 40 is further configured to: when the foregoing transmission type is uplink transmission, the base station selects a downlink MCS table according to the predefined information, and the foregoing predefined information includes at least one of the following: receiving the IMCS: a table type configured during downlink transmission, the above table The type includes at least one of the following: a CQI table supporting the M-th order modulation mode, and an MCS table supporting the M-th order modulation mode;
• the DCI format format where the DCI carries a modulation and coding mode field/ MCS; a search space corresponding to the downlink control signaling, the search space includes at least one of the following: a common search space, a UE-specific search space, where, downlink control signaling Carrying the modulation and coding mode field/ MCS; the cyclic redundancy code check CRC scrambling mode corresponding to the downlink control signaling, the CRC scrambling mode includes at least one of the following: SPS cell radio network temporary identifier C-RNTI scrambling, C - RNTI scrambling, wherein the downlink control signaling carries a modulation and coding mode field / MCS; an uplink transmission mode; an uplink subframe set configured by the base station; and a predefined set of upper and lower subframes.
• a terminal including: the high-order coding modulation processing apparatus described in any of the above.
• the conventional table of the communication system cannot support the higher-order modulation mode, and the specific high-order modulation mode enhancement table and the configuration of the regular table are not solved.
• an embodiment of the present invention provides a high-order code modulation processing method, apparatus, and system.
• the base station selects a table supporting an M-th order modulation mode according to a transmission type and predefined information, or selects an M-order modulation mode that does not support. form.
• the transmission type is uplink transmission or downlink transmission.
• the table supporting the M-order modulation mode is an MCS table supporting the M-th order modulation mode
• the table not supporting the M-order modulation mode is an MCS table that does not support the M-order modulation mode
• M ⁇ 256 is a positive integer.
• the base station sends downlink control information, where the downlink control information includes at least a modulation and coding mode field (IMCS), and then the IMCS is based on a table selected by the base station to support or not support the M-order modulation mode.
• IMCS modulation and coding mode field
• the MCS table used in the downlink subframe is determined according to the CQI table configured by the predefined subframe set.
• the predefined set of subframes includes a subframe set 0 configured by a base station, and/or a subframe set 1.
• Determining, by the CQI table configured according to the predefined subframe set, the MCS table used by the downlink subframe includes: when at least one of the predefined subframe sets configures a CQI table supporting 256QAM, all downlink subframes use an MCS table that supports 256QAM .
• Sub-Embodiment 1 In this embodiment, the base station sends configuration signaling to the terminal, where the signaling configures a subframe set 0 and a subframe set 1.
• the base station sends a configuration signaling 1 to the terminal, and the signaling configures a table supporting the 256QAM modulation mode for the subframe set 0, the table supporting 256QAM is a CQI table supporting 256QAM, and the table supporting the 256QAM is selected for the subframe set 1
• the table that does not support 256QAM is the CQI table of the LTE Rel-11 version standard 36.213.
• the base station sends downlink control signaling to the terminal on the downlink subframe, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and the terminal receives the downlink control signaling sent by the base station, and then the IMCS is based on the MCS table supporting 256QAM.
• IMCS modulation and coding mode domain
• Sub-Embodiment 2 In this embodiment, the base station sends configuration signaling to the terminal, where the signaling configures a subframe set.
• the base station sends configuration signaling 1 to the terminal, and the signaling supports 256QAM for the subframe set 1 configuration.
• a table of modulation modes the table supporting 256QAM is a CQI table supporting 256QAM; a table not supporting 256QAM is selected for the subframe set 0, and the table not supporting 256QAM is a CQI table of the LTE Rel-11 version standard 36.213.
• the base station sends downlink control signaling to the terminal on the downlink subframe, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and then the IMCS is based on an MCS table supporting 256QAM.
• IMCS modulation and coding mode domain
• Sub-Embodiment 3 In this embodiment, the base station sends configuration signaling to the terminal, where the signaling configures a subframe set 0 and a subframe set 1.
• the base station sends a configuration signaling 1 to the terminal, and the signaling configures a table supporting the 256QAM modulation mode for the subframe set 0, the table supporting 256QAM is a CQI table supporting 256QAM, and the table supporting the 256QAM is selected for the subframe set 1
• the table that does not support 256QAM is the CQI table of the LTE Rel-11 version standard 36.213.
• the base station sends downlink control signaling to the terminal on the subframe set 0, where the downlink control signaling includes an modulation and coding mode domain (IMCS), then the IMCS is based on an MCS table supporting 256QAM; the base station is in a subframe set 1 and a subframe set.
• IMCS modulation and coding mode domain
• the downlink control signaling includes an modulation and coding mode domain (IMCS), and the IMCS is based on an MCS table that does not support 256QAM.
• the downlink subframe MCS table is selected according to the table configured by the subframe set, and the signal dry-noise ratio condition configuration table of the channel is better utilized to better implement adaptive modulation and coding, thereby improving system throughput.
• the base station sends configuration signaling to the terminal, where the signaling configures a subframe set 0 and a subframe set 1.
• the base station sends a configuration signaling 1 to the terminal, and the signaling configures a table supporting the 256QAM modulation mode for the subframe set 1 , the table supporting the 256QAM is a CQI table supporting 256QAM, and selecting a table not supporting 256QAM for the subframe set 0,
• the table that does not support 256QAM is the CQI table of the LTE Rel-11 version standard 36.213.
• the base station sends downlink control signaling to the terminal on the subframe set 1, the downlink control signaling includes an modulation and coding mode domain (IMCS), then the IMCS is based on an MCS table supporting 256QAM; the base station is on the subframe set 0 to the terminal And transmitting downlink control signaling, where the downlink control signaling includes a modulation and coding mode domain (/ MCS ), and the IMCS is based on an MCS table that does not support 256QAM.
• IMCS modulation and coding mode domain
• the base station sends configuration signaling 2 to the terminal, and the signaling configures the MCS table supporting the 256QAM modulation mode for the subframe set 2, and the base station sends downlink control signaling to the terminal on the subframe set 2, where the downlink control signaling includes modulation and Encoding Mode Field (IMCS), which is based on MCS tables that support 256QAM.
• IMCS modulation and Encoding Mode Field
• the downlink subframe MCS table is selected according to the table configured by the subframe set, and the signal dry-noise ratio condition configuration table of the channel is better utilized to better implement adaptive modulation coding, and the system is improved. Throughput.
• the table is configured by the upper layer according to the signal to interference and noise ratio condition of the channel, and is also for better implementation of adaptive modulation coding, which improves system throughput.
• the configuration of the uplink MCS table is as follows: 1) The use of the uplink MCS table is determined by the type of the CQI table and/or the MCS table configured in the downlink; 2) The uplink MCS table is configured by an independent radio resource control (RRC: Radio Resource Control) Sub-Embodiment 1: In this embodiment, the base station sends configuration signaling 0 to the terminal, where the signaling configuration 0 supports the downlink transmission or does not support the enhanced table of 256QAM.
• RRC Radio Resource Control
• the enhanced table supporting 256QAM is a CQI table supporting 256QAM, and/or an MCS table.
• the enhanced table that does not support 256QAM is a CQI table that does not support 256QAM, and/or an MCS table.
• the base station sends configuration signaling 1 to the terminal, and the signaling configuration 1 selects an enhanced table supporting 256QAM for the uplink transmission.
• the enhanced table supporting 256QAM is an MCS table supporting 256QAM.
• the base station sends downlink control signaling to the terminal through DCI format 0 or DCI format 4, where the downlink control signaling includes an modulation and coding mode domain (IMCS).
• IMCS modulation and coding mode domain
• the base station receives the uplink data sent by the terminal and does not include the CSI on the PUSCH, and then the IMCS is based on the MCS table supporting 256QAM.
• the selection of the uplink table and the downlink table is independent, and the channel signal to interference ratio condition configuration table can be better utilized to better implement adaptive modulation coding and improve system throughput.
• Sub-Embodiment 2 In this embodiment, the base station sends configuration signaling 0 to the terminal, where the signaling configuration 0 supports the downlink transmission or does not support the enhanced table of 256QAM.
• the enhanced table supporting 256QAM is a CQI table supporting 256QAM, and/or an MCS table.
• the enhanced table that does not support 256QAM is a CQI table that does not support 256QAM, and/or an MCS table.
• the base station sends configuration signaling 1 to the terminal, and the signaling configuration 1 selects an enhanced table supporting 256QAM for the uplink transmission.
• the enhanced table supporting 256QAM is an MCS table supporting 256QAM.
• the base station sends the downlink control signaling to the terminal by using the DCI format 0 or the DCI format 4, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and the base station receives the CSI data sent by the terminal on the PUSCH, then the / MCS is based on MCS tables of 256QAM are not supported.
• IMCS modulation and coding mode domain
• the selection of the uplink table and the downlink table is independent, and the channel dry signal-to-noise ratio condition configuration table can be better utilized to better implement adaptive modulation coding and improve system throughput.
• the CSCH data is transmitted by the PUSCH. Try to use low-order modulation to ensure the correct transmission rate. Therefore, it is not necessary to use the MCS table supporting 256QAM.
• the MCS table without 256QAM may have finer spectral efficiency granularity in the low spectral efficiency region, which can better realize self.
• Sub-Embodiment 3 This embodiment assumes a specific scenario, which includes a TDD scenario. Two nodes, Node 1 and Node 2, send downlink data to the terminal.
• Node 1 is configured with a downstream enhanced table that supports 256QAM.
• Node 2 is configured with a downstream enhanced table that does not support 256QAM.
• the downlink enhanced table supporting 256QAM is a CQI table supporting 256QAM, and/or an MCS table.
• the downlink enhanced table that does not support 256QAM is a CQI table that does not support 256QAM, and a P/ or MCS table.
• Node 1 or Node 2 passes DCI format 0
• the DCI format 4 sends the downlink control signaling to the terminal, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and the node 1 and the node 2 receive the uplink data that is sent by the terminal and does not include the CSI on the PUSCH, then the IMCS is based on MCS tables that support 256QAM.
• the uplink configures the table according to the downlink table, which simplifies the configuration of the table in consideration of channel reciprocity of a specific scenario.
• Sub-Embodiment 4 This embodiment assumes a specific scenario, which includes a TDD scenario. Two nodes, Node 1 and Node 2, send downlink data to the terminal.
• Node 1 is configured with a downstream enhanced table that supports 256QAM.
• Node 2 is configured with a downstream enhanced table that does not support 256QAM.
• the downlink enhanced table supporting 256QAM is a CQI table supporting 256QAM, and/or an MCS table.
• the downlink enhanced table that does not support 256QAM is a CQI table that does not support 256QAM, and a P/ or MCS table.
• Node 1 or node 2 sends downlink control signaling to the terminal through DCI format 0 or DCI format 4, where the downlink control signaling includes a modulation and coding mode field (I MCS ), and node 1 and node 2 transmit the terminal on the PUSCH.
• I MCS modulation and coding mode field
• the uplink data of the CSI is included, then the / MCS is based on an MCS table that does not support 256QAM.
• MCS table that does not support 256QAM.
• the MCS table without supporting 256QAM may have more refined spectral efficiency in the low spectral efficiency region. Granularity, better adaptive code modulation can be achieved.
• the search space, the CRC scrambling mode, and the uplink transmission mode determine the use of the uplink MCS table that supports or does not support 256QAM.
• Sub-Ath Embodiment In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal, or only one format of the DCI format 0.
• the base station sends downlink control signaling to the terminal through the DCI format 0 and the common search space, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and the IMCS is based on an MCS table that does not support 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM is for a specific UE.
• Sub-Embodiment 2 In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal or only one format of the DCI format 0.
• the base station sends downlink control signaling to the terminal through the DCI format 0 and the UE-specific search space, where the downlink control signaling includes an modulation and coding mode domain (IMCS), and the IMCS is based on an MCS table supporting 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM is for a specific UE.
• Sub-Embodiment 3 In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal, or only one format of the DCI format 0.
• the base station sends downlink control signaling to the terminal through the DCI format 0, where the downlink control signaling includes an modulation and coding mode domain (IMCS).
• IMCS modulation and coding mode domain
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM should be flexibly configured according to the signal to interference and noise ratio conditions.
• Sub-Embodiment 4 In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal, or only one format of the DCI format 0. The base station sends downlink control signaling to the terminal through the DCI format 0, where the downlink control signaling includes an modulation and coding mode domain (IMCS).
• IMCS modulation and coding mode domain
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM should be flexibly configured according to the signal to interference and noise ratio conditions.
• Sub-Embodiment 5 In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal, or only one format of the DCI format 0. The base station sends downlink control signaling to the terminal through the DCI format 0 and the UE-specific search space, where the downlink control signaling includes a modulation and coding mode field (/ MCS ).
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM is for a specific UE, and the use of 256QAM should be flexibly configured according to the signal to interference and noise ratio conditions.
• Sub-Embodiment 6 In this embodiment, it is assumed that the base station configures the uplink transmission mode 1 for the terminal, or only one format of the DCI format 0.
• the base station sends downlink control signaling to the terminal through the DCI format 0 and the UE-specific search space, where the downlink control signaling includes a modulation and coding mode field (/ MCS ). And the CRC corresponding to the downlink control signaling is scrambled by the C-RNTI. Then the / MCS is based on an MCS table that supports 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH. This configuration is because the use of 256QAM is for a specific UE, and the use of 256QAM should be flexibly configured according to the signal to interference and noise ratio conditions.
• Sub-Embodiment 7 In this embodiment, it is assumed that the base station configures the uplink transmission mode 2 or the DCI format 0/4 format for the terminal.
• the base station sends downlink control signaling to the terminal through DCI format 0, where the downlink control signaling includes a modulation and coding mode field (/ MCS ), and the IMCS is based on an MCS table that does not support 256QAM.
• the base station sends downlink control signaling to the terminal through the DCI format 4, where the downlink control signaling includes a modulation and coding mode field (/ MCS ), and the IMCS is based on an MCS table supporting 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH.
• DCI format 4 is for the transmission of multiple codewords and may correspond to a higher signal to interference and noise ratio, so the corresponding uplink transmission is more likely to use 256QAM.
• Sub-Embodiment 8 In this embodiment, it is assumed that the base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0/4 format. When the base station through the DCI format 0 and a common search space to send downlink control signaling to the terminal, the downlink control signaling includes the time domain modulation and coding scheme (MCS J), does not support the MCS table based IMCS of 256QAM.
• MCS J time domain modulation and coding scheme
• the base station When the base station sends the terminal to the terminal through DCI format 0 and the UE-specific search space Row control signaling, when the downlink control signaling includes a modulation and coding mode field (/ MCS ), the / MCS is based on an MCS table supporting 256QAM.
• the base station sends downlink control signaling to the terminal through the DCI format 4, where the downlink control signaling includes a modulation and coding mode field (/ MCS )
• the IMCS is based on an MCS table supporting 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH.
• a table supporting 256QAM is also configured, which makes it possible to use 256QAM.
• Sub-Embodiment 9 In this embodiment, it is assumed that the base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0/4 format. When the base station sends downlink control signaling to the terminal through the DCI format 0, where the downlink control signaling includes a modulation and coding mode field (/ MCS ) and the CRC corresponding to the downlink control signaling is scrambled by the SPS C-RNTI, the IMCS Based on MCS tables that do not support 256QAM.
• / MCS modulation and coding mode field
• the base station When the base station sends downlink control signaling to the terminal through the DCI format 0, where the downlink control signaling includes a modulation and coding mode field (/ MCS ) and the CRC corresponding to the downlink control signaling is scrambled by the C-RNTI, the / MCS Based on MCS tables supporting 256QAM.
• the base station sends downlink control signaling to the terminal through the DCI format 4, where the downlink control signaling includes a modulation and coding mode field (/ MCS )
• the / MCS is based on an MCS table supporting 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH.
• a table supporting 256QAM is also configured for DCI format 0, which makes it possible to use 256QAM.
• Sub-Embodiment 10 In this embodiment, it is assumed that the base station configures the uplink transmission mode 2 for the terminal, or configures the DCI format 0/4 format. When the base station sends downlink control signaling to the terminal through the DCI format 0 and the common search space, where the downlink control signaling includes a modulation and coding mode field (/ MCS ), the / MCS is based on an MCS table that does not support 256QAM.
• / MCS modulation and coding mode field
• the downlink control signaling When the base station sends downlink control signaling to the terminal through the DCI format 0 and the UE-specific search space, the downlink control signaling includes a modulation and coding mode field (/ MCS ) and the CRC corresponding to the downlink control signaling is scrambled by the C-RNTI
• the IMCS is based on an MCS table supporting 256QAM.
• the downlink control signaling includes a modulation and coding mode domain (/ MCS ) and is corresponding to the downlink control signaling by the SPS C-RNTI.
• the / MCS is based on an MCS table that does not support 256QAM.
• the base station through the DCI format 4 is transmitted to the terminal downlink control signaling, the downlink control signaling comprising the modulation and coding scheme field (/ MCS), the / MCS MCS table based on the support of 256QAM.
• the base station receives the uplink data sent by the terminal on the PUSCH.
• a table supporting 256QAM is also configured for DCI format 0, which makes it possible to use 256QAM. This is to consider using 256QAM as much as possible to improve spectral efficiency.
• the use of 256QAM is for a specific UE, and the use of 256QAM should be flexibly configured according to the signal to interference and noise ratio conditions.
• the mapping relationship between the TPC command field and the TPC command in the DCI format 0/3/3A/4 is designed.
• the power control of 36.213 is for 64QAM and lower order modulation.
• the new mapping relationship is designed to take into account that 256QAM requires a higher signal to interference and noise ratio condition, and can provide higher signal to interference and noise ratio through uplink power control.
• the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends downlink control signaling to the terminal through DCI format 0 or DCI format 4 or DCI format 3, where the downlink control signaling includes a TPC command (Transmission Power Control Command) field.
• TPC command Transmission Power Control Command
• the value of the TPC command field is 0, 1, 2, 3.
• Table 1 Table 1.
• Downlink Control Information Format Transmit Power Control Command Field in DCI format 0/3/4 TPC
• Sub-Embodiment 2 the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station passes DCI format 0 or DCI format 4 or DCI format
• TPC command Transmission Power Control Command
• Table 2 Table 2.
• Downlink Control Information Format Transmit Power Control Command Field in DCI format 0/3/4 TPC
• the base station sends configuration signaling to the terminal, and the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends downlink control signaling to the terminal through the DCI format 3A, where the downlink control signaling includes a TPC command field.
• the value of the TPC command field is 0, 1.
• the mapping relationship between the TPC command field and the cumulative transmission power control command is as follows: Table 3. Downlink Control Information Format DCI format 3A Transmit Power Control Command Field TPC Command
• the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends downlink control signaling to the terminal through the DCI format 3A, where the downlink control signaling includes a TPC command field.
• the value of the TPC command field is 0, 1, 2, 3.
• mapping relationship between the TPC command field and the cumulative transmission power control command is as follows: Table 4.
• Downlink Control Information Format DCI format 3A Transmit Power Control Command Field TPC Command
• Embodiment 5 supports the design of the uplink MCS table of 256QAM.
• the uplink MCS table of the Release 11 version of the LTE protocol 36.213 supports 64QAM, and does not support 256QAM.
• Sub-Embodiment 1 In this embodiment, the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends the DCI format 0 or DCI format 4 or sends it to the terminal.
• the IMCS is based on a modulation mode, a TBS index, and a redundancy version table of the following PUSCH.
• the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends downlink control signaling to the terminal through DCI format 0 or DCI format 4, where the downlink control signaling includes a modulation and coding mode field (/ MCS ).
• the IMCS is based on a modulation mode, a TBS index, and a redundancy version table of the following PUSCH.
• the base station sends configuration signaling to the terminal, where the signaling configures an MCS table supporting 256QAM for uplink transmission.
• the base station sends downlink control signaling to the terminal through DCI format 0 or DCI format 4, where the downlink control signaling includes a modulation and coding mode field (/ MCS ).
• the IMCS is based on a modulation mode, a TBS index, and a redundancy version table of the following PUSCH.
• the high-order code modulation processing apparatus provided by the embodiment of the present invention can be combined with a high-order code modulation processing method provided by an embodiment of the present invention, and the base station according to the transmission type and the predefined information.
• the transmission type is uplink transmission or downlink transmission.
• the table supporting the M-order modulation mode is an MCS table supporting the M-order modulation mode
• the table not supporting the M-order modulation mode is an MCS table that does not support the M-order modulation mode
• M ⁇ 256 is a positive integer. .
• the base station sends downlink control information, where the downlink control information includes at least a modulation and coding mode field, and the MCS supports a table based on the base station selection or does not support the M-order modulation mode.
• the downlink and uplink are implemented, and the base station and the terminal are transmitted based on the higher-order modulation mode, which solves the problem that the existing communication system cannot support the higher-order modulation mode.
• the technical solution provided by the embodiment of the present invention can flexibly configure or support the use of the M-th order modulation mode according to the signal to interference and noise ratio condition, and supports high-order modulation on the basis of being compatible with the existing wireless transmission network, which can better realize the self.
• the use of the M-th order modulation mode (M is greater than or equal to 256) can be reasonably configured to provide a suitable signal to interference and noise ratio condition for the use of the M-th order modulation mode. It can well support the use of M-order modulation mode, balance the relationship between improving spectral efficiency and ensuring transmission accuracy, simplifying configuration, and improving data transmission peak rate and throughput of wireless communication systems.
• software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.
• a storage medium is provided, the software being stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like.
• the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
• the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
• the invention is not limited to any specific combination of hardware and software.
• the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
• Industrial Applicability The above technical solution provided by the present invention using the base station selects an MCS table according to a predefined transmission type and transmitting information and technology / MCS base station based on the selected MCS table to solve the related art, conventional tables can not support the higher The technical problem of the demodulation method is realized, thereby realizing the transmission of the base station and the terminal based on the higher order modulation mode.

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• 2014
  • 2014-05-09 CN CN201410197177.5A patent/CN104202115B/zh active Active
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