WO2013107256A1 - Procédé de transmission d'informations de commande de liaison descendante, procédé de détection, station de base et équipement utilisateur - Google Patents

Procédé de transmission d'informations de commande de liaison descendante, procédé de détection, station de base et équipement utilisateur Download PDF

Info

Publication number
WO2013107256A1
WO2013107256A1 PCT/CN2012/087496 CN2012087496W WO2013107256A1 WO 2013107256 A1 WO2013107256 A1 WO 2013107256A1 CN 2012087496 W CN2012087496 W CN 2012087496W WO 2013107256 A1 WO2013107256 A1 WO 2013107256A1
Authority
WO
WIPO (PCT)
Prior art keywords
format
pdsch
information
bits
user equipment
Prior art date
Application number
PCT/CN2012/087496
Other languages
English (en)
Chinese (zh)
Inventor
石靖
戴博
夏树强
方惠英
李新彩
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013107256A1 publication Critical patent/WO2013107256A1/fr

Links

Classifications

    • 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

  • Downlink control information sending method detecting method, base station and user equipment
  • the present invention relates to the field of wireless communications, and in particular, to a downlink control applicable in an LTE/LTE-A (Long Term Evolution/Long Term Evolution Advance) system and an evolved system thereof.
  • LTE/LTE-A Long Term Evolution/Long Term Evolution Advance
  • MTC Machine Type Communication
  • MTC User Terminal MTC User
  • MTC UE Mobile Transmission Control Unit
  • M2M Machine to Machine
  • M2M Machine to Machine
  • GSM Global System of Mobile communication
  • M2M multi-class data services based on LTE/LTE-A will also be more attractive. Only the cost of the LTE-M2M device can be lower than that of the MTC terminal of the GSM system, and the M2M service can be truly transferred from the GSM to the LTE system.
  • the cost of affecting MTC UEs is mainly in baseband processing and radio frequency. Reducing the number of RF antennas is a very effective way to reduce the cost of MTC UEs. That is, the receiving antenna of the MTC UE is smaller than the minimum configuration of the two receiving antennas of the conventional legacy LTE terminal (Ordinary Legacy R8/9/10 UE, OL UE for short).
  • both the low-cost MTC UE and the legacy UE can transmit DCI (Downlink Control Information) through the PDCCH (Physical Downlink Control Channel), and the MTC UE and the new version of LTE-A ( The New Version Rl l/etc. UE, abbreviated as NV UE, can transmit DCI information through an enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH enhanced Physical Downlink Control Channel
  • NV UE use DCI in LTE/LTE-A system
  • MTC UE is also The DCI is obtained by demodulating the PDCCH/ePDCCH channel to implement demodulation and control of the PDSCH (Physical Downlink Share Channel) and the Physical Uplink Share Channel (PUSCH).
  • PDSCH Physical Downlink Share Channel
  • PUSCH Physical Uplink Share Channel
  • the existing LTE/LTE-A frame structure is shown in Figure 2 and Figure 3.
  • FIG. 2 is a schematic diagram of a frame structure of an FDD (Frequency Division Duplexing) mode according to the related art.
  • a 10ms radio frame consists of twenty slots (lengths) with lengths of 0.5ms and numbers 0 ⁇ 19.
  • the slots 2i and 2i+1 form sub-frames of length 1ms. i.
  • FIG. 3 is a schematic diagram of a frame structure of a TDD (Time Division Duplexing) mode according to the related art.
  • a 10 ms radio frame is composed of two half frames of 5 ms length.
  • One field includes five subframes of length 1 ms, and subframe i is defined as two slots 2i and 2i+1 that are 0.5 ms long.
  • LTE/LTE-A Physical Control Format Indicator Channel (PCFICH) and Physical Hybrid Automatic Retransmission Request Indicator Channel (Physical Hybrid Automatic Retransmission Request Indicator Channel) , referred to as PHICH) and the physical downlink control channel.
  • PCFICH Physical Control Format Indicator Channel
  • PHICH Physical Hybrid Automatic Retransmission Request Indicator Channel
  • the information carried by the PCFICH is used to indicate Orthogonal Frequency Division Multiplexing (OFDM) symbol feedback information for transmitting the PDCCH in one subframe.
  • the PDCCH is used to carry the DCI, and includes: uplink and downlink scheduling information, and uplink power control information.
  • DCI Format 0, 1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C, 3, 3A, 4 are included.
  • the information included in DCI Format 0 includes: carrier indication, format 0/1A identifier, PUSCH frequency hopping identifier, PUSCH resource allocation and frequency hopping allocation, MCS (Modulation Code Scheme) level and RV (Redundancy Version). Version), NDI (New Data Indicator), TPC (Transmit Power Control) for scheduled PUSCH, Transmit power control) command, DM RS (Demodulation Reference Signal) cyclic shift and OCC (Orthogonal Cover Code) index, UL index, DAI (Downlink Assignment Index) ), CSI (Channel State Information) request, SRS (Sounding Reference Signal) request, resource allocation type.
  • MCS Modulation Code Scheme
  • RV Redundancy Version
  • NDI New Data Indicator
  • TPC Transmit Power Control
  • DM RS Demodulation Reference Signal
  • OCC Orthogonal Cover Code
  • UL index Uplink Assignment Index
  • DAI Downlink Assignment Index
  • CSI Channel State Information
  • SRS Sounding Reference Signal
  • the information included in DCI Format 1 is: carrier indication, resource scheduling header, resource allocation, MCS level, HARQ (Hybrid Automatic Repeat Request) process number, NDI, RV, PUCCH for scheduling (Physical Uplink Share) Channel, physical uplink control channel) TPC command, DAI.
  • HARQ Hybrid Automatic Repeat Request
  • the information included in the DCI Format 1A when the C-RNT Cell Radio Network Temporary Identifier is used for scrambling is: carrier indication, format 0/1A identifier, and centralized/discrete VRB (Virtual Resource Block). Assignment flag, resource allocation, preamble index, PRACH (Physical Random Access Channel) mask index.
  • DCI Format 1A includes when not using C-RNTI scrambling is: carrier indication, format
  • the DCI Format IB includes information: carrier indication, centralized/discrete VRB allocation flag, resource allocation, MCS level, HARQ process number, NDI, RV, TPC command for scheduled PUCCH, and DAL TPMI (Transmitted Precoding Matrix Indicator).
  • the coding matrix indicates) precoding information, PMI (Precoding Matrix Indicator) confirmation information.
  • the information included in DCI Format 1C for one PDSCH scheduling is: gap indication value, resource allocation, and MCS.
  • the information included in the DCI Format 1 C for notifying the MCCH (Multicast Control Channel) change is: MCCH change notification information.
  • the DCI Format 1D includes information: carrier indication, centralized/discrete VRB allocation flag, resource allocation, MCS level, HARQ process number, NDI, RV, TPC command for scheduled PUCCH, DAL TPMI precoding information, downlink power offset .
  • the information included in the DCI Format 2 includes: a carrier indication, a resource scheduling header, a resource allocation, a TPC command to the scheduled PUCCH, a DAI, a HARQ process number, a transport block codeword switching flag, an MCS level of the transport block 1, and a transport block 1 NDI, RV of transport block 1, MCS level of transport block 2, NDI of transport block 2, RV of transport block 2, precoding information.
  • the information included in the DCI Format 2A includes: a carrier indication, a resource scheduling header, a resource allocation, a TPC command to the scheduled PUCCH, a DAI, a HARQ process number, a transport block codeword switching flag, an MCS level of the transport block 1, and a transport block 1 NDI, RV of transport block 1, MCS level of transport block 2, NDI of transport block 2, RV of transport block 2, precoding information.
  • the DCI Format 2B includes: carrier indication, resource scheduling header, resource allocation, TPC command for scheduled PUCCH, DAI, HARQ process number, scrambling acknowledgement, SRS request, MCS level of transport block 1, transport block 1 NDI, RV of transport block 1, MCS level of transport block 2, NDI of transport block 2, RV of transport block 2.
  • the DCI Format 2C includes information: carrier indication, resource scheduling header, resource allocation, TPC command for scheduled PUCCH, DAI, HARQ process number, antenna port and scrambling acknowledgement and layer number, SRS request, MCS of transport block 1. Level, NDI of transport block 1, RV of transport block 1, MCS level of transport block 2, NDI of transport block 2, RV of transport block 2.
  • DCI Format 3 includes the following information: TPC command number 1: TPC command number 2, ... TPC command number N (N - J format 0
  • Redundancy Check the number of bits before the cyclic redundancy check.
  • the information included in DCI Format 4 is: carrier indication, resource allocation, TPC command for scheduled PUSCH, DM RS cyclic shift and OCC index, UL index, antenna port and scrambling acknowledgement and layer number, DAI, CSI request, SRS Request, resource allocation type, MCS level of transport block 1, NDI of transport block 1, MCS level of transport block 2, NDI of transport block 2.
  • the low-cost receiving antenna-limited MTC UE may have a problem of reduced coverage performance in the LTE system, and the low-cost MTC UE may not be fully used because it does not support spatial multiplexing, MIMO, and the like. Strong, even if some existing DCI formats can be applied to low-cost MTC UEs, it will cause excessive overhead.
  • limited coverage of MTC UEs in LTE systems is limited, and a suitable information transmission procedure is designed for low-cost MTC UEs. No effective solution has been proposed yet.
  • the technical problem to be solved by the present invention is to provide a downlink control information sending method, a detecting method, a base station, and a user equipment, which can compensate for the coverage problem caused by the limited receiving antenna in the LTE system of the low-cost MTC terminal.
  • the present invention provides a method for transmitting downlink control information, including:
  • the base station uses the transmit diversity transmission mode to transmit public information directly to the user equipment through a physical downlink shared channel (PDSCH).
  • PDSCH physical downlink shared channel
  • the present invention further provides a method for detecting downlink control information, including: a user equipment blindly detecting a physical downlink shared channel (PDSCH) carrying public information, and acquiring the public information.
  • a user equipment blindly detecting a physical downlink shared channel (PDSCH) carrying public information, and acquiring the public information.
  • PDSCH physical downlink shared channel
  • the present invention further provides a base station, comprising: a downlink control information sending unit, configured to: transmit the public information directly to the user equipment through a physical downlink shared channel (PDSCH) by using a transmit diversity transmission mode.
  • a base station comprising: a downlink control information sending unit, configured to: transmit the public information directly to the user equipment through a physical downlink shared channel (PDSCH) by using a transmit diversity transmission mode.
  • PDSCH physical downlink shared channel
  • the present invention further provides a user equipment, including: a detecting unit, configured to: blindly detect a physical downlink shared channel (PDSCH) carrying public information, and obtain the public information.
  • a detecting unit configured to: blindly detect a physical downlink shared channel (PDSCH) carrying public information, and obtain the public information.
  • PDSCH physical downlink shared channel
  • FIG. 1 is a diagram showing an example of a control channel supporting a low-cost MTC terminal device DCI according to an embodiment of the present invention
  • FIG. 3 shows the TDD frame structure of the LTE/LTE-A system
  • the method for transmitting the downlink control information in the embodiment of the present invention is preferably applicable to a low-cost MTC UE, but does not exclude other types of UEs, and includes different sending methods, transmission modes, and corresponding control signalings of different types of information.
  • the embodiment of the present invention provides a method for transmitting downlink control information, including: The base station uses the transmit diversity transmission mode to transmit public information directly to the user equipment through the PDSCH.
  • the cell-specific reference signal CRS or the demodulation reference signal DMRS pilot is used in the transmit diversity transmission mode.
  • the base station sends the public information on a predefined subframe.
  • the predefined subframe may be subframe 0 and/or subframe 5, or other subframes.
  • the bandwidth of the PDSCH is smaller than the system bandwidth.
  • the bandwidth of the PDSCH is not greater than the bandwidth accessed by the user equipment.
  • the frequency domain resource of the PDSCH is the full bandwidth of the access bandwidth of the user equipment, or is a predefined part of the bandwidth of the access bandwidth of the user equipment, where the user equipment includes a low-cost user equipment, or other user equipment. .
  • the base station performs power interference on the PDSCH by using a preset radio network temporary identifier RNTI.
  • the transport block size carried by the PDSCH is one of pre-defined k types, and k is a natural number.
  • the embodiment of the present invention further provides a method for detecting downlink control information, including: a user equipment blindly detecting a physical downlink shared channel (PDSCH) carrying public information, and acquiring the public information.
  • a user equipment blindly detecting a physical downlink shared channel (PDSCH) carrying public information, and acquiring the public information.
  • PDSCH physical downlink shared channel
  • the PDSCH that bears the public information by the user equipment includes:
  • the user equipment blindly detects the PDSCH on a predefined subframe.
  • the predefined subframe is subframe 0 and/or subframe 5.
  • the blind detection is blind detection in units of one or more resource blocks RB.
  • the embodiment of the invention further provides a method for transmitting downlink control information, including:
  • the PDSCH transmits the public information or the user-specific information to the user equipment, and is indicated by the downlink control information (DCI) carried by the control channel, and the bandwidth occupied by the PDSCH is smaller than the system bandwidth.
  • DCI downlink control information
  • the user equipment includes a low-cost user equipment.
  • a transmit diversity transmission mode when transmitting the public information, a transmit diversity transmission mode is used.
  • the transmit diversity transmission mode when transmitting the user-specific information, is fixedly used, or one of a single antenna port transmission and a transmit diversity transmission mode is selected.
  • a CRS or DMRS pilot is used.
  • the frequency domain resource of the PDSCH and the Z or the PDCCH is the full bandwidth of the user equipment access bandwidth, or is a predefined part of the bandwidth of the user equipment access bandwidth.
  • the control channel is an enhanced physical downlink control channel or a newly defined physical downlink control channel.
  • the base station sends the public information or user-specific information on a predefined subframe. For example, a subset of the set of subframes ⁇ 0, 9 ⁇ .
  • the DCI is in one of the following formats:
  • Format 1A, Format 1C The newly defined format; the format may be identified by the format 1E, and the identifier is only an example, and other identifiers different from the used DCI Format may be used as needed, which is not limited by the present invention.
  • the format of the new definition includes the following information:
  • DCI format identifier resource block allocation, modulation and coding scheme MCS, hybrid automatic repeat request HARQ process number, new data indication NDI, transmit power control TPC command for scheduled physical uplink control channel PUCCH, downlink allocation index, transmission mode identifier ;
  • the DCI format identifier the centralized/distributed virtual resource block VRB allocation flag bit, the resource block allocation, the MCS, the number of HARQ processes, the NDI, the TPC command to the scheduled PUCCH, the downlink allocation index, and the transmission mode identifier;
  • DCI format identification DCI format identification, resource block allocation, MCS, HARQ process number, NDI, swap TPC command of PUCCH and downlink allocation index;
  • DCI format identifier centralized/distributed VRB allocation flag bit, resource block allocation, MCS, HARQ process number, NDI, TPC command for scheduled PUCCH, downlink allocation index; or, DCI format identifier, resource block allocation, MCS, NDI, TPC command to scheduled PUCCH, downlink allocation index, and transmission mode identifier;
  • DCI format identifier centralized/distributed VRB allocation flag bit, resource block allocation, MCS, NPC pair scheduled PUCCH TPC command, downlink allocation index, and transmission mode identifier; or, DCI format identifier, resource block allocation, MCS And the NDL pairs the scheduled TPC command and the downlink allocation index of the PUCCH;
  • DCI format identification centralized/distributed VRB allocation flag bits, resource block allocation,
  • the DCI format identifier is used to indicate a DCI format
  • the transmission mode identifier is used to indicate a PDSCH transmission mode
  • the transmission mode identifier occupies 1 bit.
  • the DCI is Format 0, or is a newly defined format, and the format can use Format
  • the OA identifier is only an example, and other identifiers different from the used DCI Format may be used as needed, which is not limited by the present invention.
  • the format of this new definition includes the following information:
  • DCI format identifier resource block allocation, MCS, NDL pair scheduled physical uplink shared channel PUPC TPC command, demodulation reference signal cyclic shift DMRS CS and orthogonal cover code OCC index, uplink index number, downlink allocation index;
  • the DCI format identifier, the resource block allocation, the MCS, the TPC command of the NDL to the scheduled PUSCH, the DMRS CS and OCC index, the uplink index number, the downlink assignment index, and the channel state information CSI request may be used to determine whether the DCI format identifier, the resource block allocation, the MCS, the TPC command of the NDL to the scheduled PUSCH, the DMRS CS and OCC index, the uplink index number, the downlink assignment index, and the channel state information CSI request.
  • the resource block allocation occupies "log d Pl NS P J- (k gapl / NS P J+ 1) 2) 1 bit or ⁇ (wS ⁇ N ⁇ +i)/ ⁇ bits; the MCS occupies 4 bits Or 3 bits or 2 bits or 1 bit ( The DCI format identifier occupies 1 bit.
  • the transport block size carried by the PDSCH is one of pre-defined k types, and k is a natural number.
  • the public information includes system messages, paging information, and random access feedback information.
  • the UE blindly detects the control channel, and further obtains a PDSCH carrying public information or user-specific information according to the DCI carried by the control channel;
  • the transmitting subframe of the public information is a predefined subframe, preferably subframe 0 and/or subframe 5, and may also be other subframes, as shown in FIG. 4, occupying subframes 1 and 6 , or, only occupy subframe 1, but not limited to these three.
  • Format3/3A Only UL Format MTC (also known as Format OA) / DL Format MTC (also known as Format IE)
  • the uplink transmission mode only supports the transmission mode of single antenna port transmission.
  • the resource allocation method only supports one type of continuous resource allocation type2, and does not support frequency hopping.
  • the MCS level only supports the mode with the highest modulation order of QPSK or 16QAM.
  • the HARQ process supports up to 2 processes and can be indicated by lbit. Only periodic CSI feedback or aperiodic CSI feedback is supported.
  • N-SCID is a predefined value of 0 or 1.
  • N-SCID is a parameter required for one of the pilot sequence initializations used in the single antenna port transmission mode. This can be seen in section 6.10.3.1 of 3GPP Protocol 36.211.
  • the reduction of the radio frequency link removes the UE's receive diversity, that is, the single antenna is reserved, which directly causes the UE to reduce the coverage performance.
  • a Compact DCI Format suitable for low-cost MTC UEs, coverage performance can be improved and costs can be reduced.
  • the RNTL PDSCH occupies the full bandwidth or a predefined part of the bandwidth of the system.
  • the system bandwidth is divided into n parts, and the Low Cost UE is detected by the parts.
  • Option 1 When the system bandwidth is 1.4MHz, there are 6RB, divided into 6 parts, when PDSCH occupies The full bandwidth is allocated in units of 1 RB, and the Low Cost UE performs blind detection for each RB within 6 RBs.
  • Scenario 2 When the system bandwidth is 5 MHz, there are 25 RBs, which are divided into 6 parts.
  • the PDSCH occupies the predefined bandwidth of the central 6 RB and is allocated in 2 RB resource units, the Low Cost UE is blinded every 2 RBs within the predefined bandwidth. Detection.
  • Scenario 3 When the system bandwidth is 1.4MHz, there are 6 RBs, which are divided into 3 parts. When the PDSCH occupies the full bandwidth and is allocated in 2 RB resource units, the Low Cost UE performs blind detection every 2 RBs within 6 RBs.
  • Scenario 4 When the system bandwidth is 1.4MHz, there are 6 RBs, which are divided into 3 parts. When the PDSCH occupies 4 RBs of predefined bandwidth and allocates 2 RBs as resource elements, the Low Cost UE performs blind detection every 2 RBs within 4 RBs.
  • Scenario 5 When the system bandwidth is 1.4MHz, there are 6 RBs, which are divided into 1 parts, that is, the PDSCH is allocated in units of 6 RBs, and the Low Cost UE is blindly tested every 6 RBs.
  • the transmission mode supported by the low-cost MTC terminal it is the transmission mode of the transmission diversity, or the transmission mode of the transmission mode of the single antenna port and the transmission mode of the transmission diversity.
  • the downlink control information format DCI Format IE is used to indicate the transmission mode, as shown in Table 1 or 2. Shown. When the transmission mode including the transmission mode of the single antenna port and the transmission mode of the transmission diversity is used, an increase of lbit is added to the DCI Format IE to distinguish.
  • Table 1 PDCCH and PDSCH configured by C-RNTI or SPS-R TI
  • Table 2 PDCCH and PDSCH configured by C-RNTI or SPS-RNTI Common and C-RNTI
  • port mode X DCI format IE or SPS-RNTI defined
  • the downlink control information format DCI Format OA is used to indicate the transmission mode, as shown in Table 3. .
  • Table 3 PDCCH and PDSCH configured by C-RNTI or SPS-RNTI
  • the transmission subframe of the public information when the public information is transmitted, preferably includes subframe 0 and or subframe 5 but is not limited thereto; when transmitting the proprietary information, transmitting the PDCCH
  • the subframe is a predefined subframe, for example, a subset of the subframe ⁇ 0, 9 ⁇ set.
  • the subframe for the control channel corresponding to the transmission of the proprietary information is all ten subframes within one frame, that is, ⁇ 0, 9 ⁇ , or any one or more subframes within one frame, suitable for each sub-frame. Dynamic scheduling of frames.
  • the subframe for the control channel corresponding to the transmission of the proprietary information is five subframes within one frame, such as ⁇ 0, 2, 4, 6, 8 ⁇ or ⁇ 1, 3, 5, 7, 9 ⁇ , Suitable for cross-frame scheduling.
  • the MCS level corresponding to the transport block size of the PDSCH bearer is a predefined k type, and k is a natural number.
  • k is a natural number.
  • the value set of k is ⁇ 1, 2, 4, 8 ⁇ ;
  • the limit is 16QAM modulation mode, the value set of k is ⁇ 1, 2, 4, 8, 16 ⁇ ;
  • the MCS level is not limited, the value of k is 32;
  • the transport block size is pre- Define k kinds, the possible values are ⁇ 1, 2, 4, 8 ⁇ , and the modulation mode is fixed to one of QPSK or 16QAM.
  • the MCS level is expressed in 4 bits, for a total of 16 cases. For example, as shown in Table 4. Others in the existing MCS level 0-16 a total of 17 combinations of 16 combinations are included.
  • the MCS level is expressed in 3 bits, for a total of 8 cases. For example: As shown in Table 5. Others in the existing MCS level 0-16 a total of 17 selected combinations of 8 are included.
  • the MCS level is expressed in 2 bits, and there are 4 cases. For example: As shown in Table 6. Others in the existing MCS level 0-16 a total of 17 kinds of combinations are included in 4 combinations.
  • the MCS level is represented by lbit, and there are two cases. For example: As shown in Table 7. Others in the existing MCS level 0-16 a total of 17 kinds of combinations are included.
  • the MCS level bit field is not used, that is, only one MCS level is supported. For example: As shown in Table 8. Others in the existing MCS level 0-16 a total of 17 selected one of the combinations are included.
  • the MCS level is expressed in 3 bits, for a total of 8 cases. For example: As shown in Table 9. Others in the existing MCS level 0-9 a total of 10 kinds of choices are included in 8 combinations
  • the MCS level is expressed in 2 bits, for a total of 4 cases. For example: As shown in Table 10, among the existing MCS grades, there are 10 combinations of 10 to choose 4 of them.
  • the MCS level is expressed using lbit, which is a common case. For example: As shown in Table 11, other combinations of 0 and 10 in the existing MCS level are included.
  • the MCS level bit field is not used, that is, only one MCS level is supported. For example: As shown in Table 12. Others in the existing MCS level 0-9 a total of 10 selected one of the combinations are included.
  • the HARQ process number bit field is not used, that is, only one HARQ process is supported. This kind of consideration is mainly for the convenience of operation, and all users use one process.
  • the DCI format OA and DCI format IE corresponding to the transmission mode used by the low-cost MTC terminal are as follows.
  • the fields defined below in the DCI format for low cost MTC UEs correspond to information bits a. To ⁇ .
  • Each field (if any, padded 0 bits are also included) is mapped in the order in which they appear, with the first field mapped to the lowest information bit a. The next field is mapped to a high information bit. The most significant bit of each field maps to the lowest information bit of the corresponding field, for example, the most significant bit of the first field maps to a. .
  • DCI formats 0A, 1E, 3, and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • format 0A If the number of information bits in format 0A is less than the payload size of format 1E (including any padding bits added to format 1E), format 0A must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for a PDSCH codeword and a compression schedule for a random access procedure initiated by a PDCCH order.
  • format 0A indicates the format OA
  • format 1E indicates the format IE
  • the format 1E is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field).
  • 1 may indicate a single antenna port transmission
  • 0 indicates a transmission diversity transmission mode, which is not limited by the present invention.
  • the identifiers and the transmission mode identifiers of the format OA and the format 1E can also be indicated by using a 2-bit joint coding method, which is not limited by the present invention.
  • format 1E If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • Scenario 2 The fields defined below in the DCI format for low cost MTC UEs correspond to information bits a. Each field (if any, padded 0 bits are also included) is mapped in the order in which it appears, with the first field mapped to the lowest information bit fl. The next field is mapped to a high information bit. The most significant bit of each field is mapped to the lowest information bit of the corresponding field, for example, the most significant bit of the first field is mapped to fl
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for one PDSCH codeword and a random connection initiated by one PDCCH command. Compression schedule into the process.
  • 0 single antenna port transmission
  • 1 transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of format OA (including any padding bits added to format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of format 0A.
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • format 0A If the number of information bits in format 0A is less than the payload size of format 1E (including any padding bits added to format 1E), format 0A must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for a PDSCH codeword and a compression schedule for a random access procedure initiated by a PDCCH order.
  • DCI format 1E The following information is transmitted via DCI format 1E: -
  • the format OA and the format IE distinguish the flag - 1 bit, where: “0” means the format OA, "1” means the format 1E
  • Format 1A is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • 0 single antenna port transmission
  • 1 transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of format OA (including any padding bits added to format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of format 0A.
  • the fields defined in the DCI format for low-cost MTC UEs below correspond to information bits ⁇
  • Each field (if any, padded 0 bits are also included) is mapped in the order in which they appear, with the first field mapped to the lowest information bit fl. The next field is mapped to a high information bit.
  • the most significant bit of each field is mapped to the lowest information bit of the corresponding field, for example, the most significant bit of the first field is mapped to fl
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • N gapl is defined in 36.211, and N is defined in 36.213.
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for one PDSCH codeword and a random connection initiated by one PDCCH command. Compression schedule into the process.
  • Format 1A is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • - Transmission mode identification - lbit 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • Each field (if any, padded 0 bits are also included) is mapped in the order in which they appear, with the first field mapped to the lowest information bit fl. The next field is mapped to a high information bit. The most significant bit of each field is mapped to the lowest information bit of the corresponding field, for example, the most significant bit of the first field is mapped to fl
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • N gapl is defined in 36.211, and N is defined in 36.213.
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for one PDSCH codeword and a random connection initiated by one PDCCH command. Compression schedule into the process.
  • Format 1A is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • - Transmission mode identification - lbit 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • Each field (if any, padded 0 bits are also included) is mapped in the order in which they appear, with the first field mapped to the lowest information bit fl. The next field is mapped to a high information bit. The most significant bit of each field is mapped to the lowest information bit of the corresponding field, for example, the most significant bit of the first field is mapped to fl
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • N gapl is defined in 36.211, and N is defined in 36.213.
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for one PDSCH codeword and a random connection initiated by one PDCCH command. Compression schedule into the process.
  • Format 1A is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • - Transmission mode identification - lbit 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • the fields defined below in the DCI format for low cost MTC UEs correspond to information bits a. Go to each field (if any, padded 0 bits are included) as described below The order of appearance is mapped, and the first field is mapped to the lowest information bit fl. The next field is mapped to a high information bit. The most significant bit of each field is mapped to the lowest information bit of the corresponding field, for example, the most significant bit of the first field is mapped to fl
  • DCI format 0A 1E 3 and 3A have the same load size.
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • N gapl is defined in 36.211, and N is defined in 36.213.
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • the DCI format IE is used for one PDSCH codeword and a random connection initiated by one PDCCH command. Compression schedule into the process.
  • Format 1A is used for the random access procedure initiated by the PDCCH order, and the remaining fields are set as follows:
  • Bit - modulation coding scheme - 3 bits see description of MCS level in the specific embodiment - number of HARQ processes —— 1 bit
  • - Transmission mode identification - lbit 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits in format 1E is less than the payload size of format OA (including any padding bits added to format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of format OA.
  • Example 1 The invention is further illustrated by the following specific examples. Example 1
  • the information is only carried by the PDSCH and does not pass the PDCCH indication.
  • the system information is carried in the PDSCH, and is transmitted in subframes 0 and 5.
  • the PDSCH starts from the first OFDM symbol and ends at the end of the last OFDM symbol, and uses QPSK modulation.
  • the TBS used is one of k types.
  • the bandwidth occupies the bandwidth of 2 RBs, and the transmission mode of the transmit diversity is used.
  • the UE When the UE receives the public information, it performs blind detection in subframes 0 and 5. The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and performs blind detection in units of 2 RBs in the search space in the entire bandwidth, and sequentially detects the number of the six RBs as ⁇ 1, 2 ⁇ . RBs of ⁇ 3, 4 ⁇ , ⁇ 5, 6 ⁇ are detected in the third group, and then k kinds of TBSs are detected in the RB numbers ⁇ 5, 6 ⁇ .
  • the information is carried only by using the PDSCH and does not pass the PDCCH indication.
  • the public information is carried in the PDSCH, and is transmitted in subframes 0 and 5, using QPSK modulation, and the used TBS is one of k types, occupying 2 RBs of bandwidth in a predefined bandwidth of 4 RBs, and using transmit diversity. Transfer mode.
  • the UE When the UE receives the public information, it performs blind detection in subframes 0 and 5. The UE detects whether it is the information sent to itself according to the RNTI scrambled by the CRC attached to the message, and then performs blind detection in units of 2 RB in the search space within the predefined bandwidth.
  • the applicable modulation scheme may be other than BPSK, 16QAM, etc. in addition to QPSK; the occupied RBs may be 1, 2, 3, 4, 5, 6 RBs or more but less than 50 RBs;
  • the combination of RBs can be multiple, and a combination of 2 RBs (or other occupied RBs) is selected among 6 RBs (or RB values corresponding to other bandwidths).
  • Time domain OFDM of the PDSCH may be obtained according to the CFI value of the PCFICH bearer in the subframe or a predefined value, where the predefined value is the i-th OFDM symbol of the fixed subframe, and ⁇ may be, 2, 3, 4 , 5, 6, 7, 8, 9, 10, ⁇ 1, 12, 13, 14,
  • ⁇ may be, 2, 3, 4 , 5, 6, 7, 8, 9, 10, ⁇ 1, 12, 13, 14,
  • the PDSCH is used to carry the information and is indicated by the DCI carried by the PDCCH.
  • the public information is carried in the PDSCH, and is transmitted in subframes 0 and 5, using QPSK modulation, and the used TBS is one of k types, occupying 1 RB bandwidth in full bandwidth 6 RB, and transmitting transmission diversity. mode.
  • the UE When receiving the public information, the UE performs blind detection of the PDCCH in subframes 0 and 5. The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and then performs blind detection detection of the DCI Format 1A according to the CCE aggregation level in the common search space in the full bandwidth, and obtains the DCI and then obtains the PDSCH. Public information.
  • the configuration of the transfer mode at this time is:
  • the PDSCH is used to carry the information and is indicated by the Compact DCI carried by the ePDCCH.
  • the public information is carried in the PDSCH, and is transmitted in subframes 0 and 5, using QPSK modulation, and the used TBS is one of k types, occupying 2 RBs of bandwidth in full bandwidth 6 RB, and transmitting transmission diversity. mode.
  • the UE When receiving the public information, the UE performs blind detection of the ePDCCH in subframes 0 and 5. The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and then performs blind detection detection of the DCI Format IE according to the 2RB in the common search space in the full bandwidth, and obtains the DCI and then obtains the PDSCH. Public information.
  • the configuration of the transfer mode at this time is: UE downlink transmission mode PDCCH corresponding PDSCH
  • the DCI format IE is used for a PDSCH codeword and a compression schedule for a random access procedure initiated by a PDCCH order.
  • format 1E If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • This embodiment can be modified as follows: different DCI configurations are used; DCI format IE is configured with different number of bits; the number of RBs occupied by the PDSCH can be 1 2 3 4 5 6 RBs or more but less than the system bandwidth; The number of RBs can be 1, 2, 4 8RB
  • the PDSCH is used to carry the information and is indicated by the DCI carried by the PDCCH.
  • the proprietary information is carried in the PDSCH and is transmitted in the predefined subframes 0 to 9.
  • the modulation mode is not limited.
  • the TBS used is one of the k types, and the bandwidth of one RB is occupied in the full bandwidth 6 RB. Send the transmission mode of the diversity.
  • the UE When receiving the private information, the UE performs blind detection in the predefined subframes 0 to 9.
  • the RN UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC appended by the message, and then the proprietary search space in the full bandwidth.
  • the DCI Format 1A is blindly detected according to the CCE aggregation level, and the DCI is obtained to obtain the proprietary information in the PDSCH.
  • the configuration of the transfer mode at this time is:
  • the configuration of the DCI Format IE is:
  • the DCI format IE is used for a PDSCH codeword and a compression schedule for a random access procedure initiated by a PDCCH order.
  • format 1E If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • the PDSCH is used to carry the information and is indicated by the Compact DCI carried by the PDCCH.
  • the proprietary information is carried in the PDSCH, and is transmitted in the predefined subframes 0 to 9.
  • the QPSK modulation is used, and the used TBS is one of the k types, occupying 1 RB bandwidth in the full bandwidth 6 RB.
  • the transmission mode of the antenna port is carried in the PDSCH, and is transmitted in the predefined subframes 0 to 9.
  • the QPSK modulation is used, and the used TBS is one of the k types, occupying 1 RB bandwidth in the full bandwidth 6 RB.
  • the UE When receiving the proprietary information, the UE performs blind detection of the PDCCH in the predefined subframes 0 to 9. The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and then performs blind detection of the DCI Format IE in units of 1 RB in a dedicated search space in the full bandwidth, and obtains the DCI and then obtains the PDSCH.
  • Proprietary information is used to the proprietary information.
  • the configuration of the transfer mode at this time is:
  • the configuration of the DCI Format IE is:
  • the DCI format IE is used for one PDSCH codeword and compression scheduling of a random access procedure initiated by one PDCCH order.
  • the following information is transmitted via the DCI format IE:
  • Transmission mode identification - lbit 0 means single antenna port transmission, 1 means transmission diversity
  • format 1E If the number of information bits in format 1E is less than the payload size of the format OA (including any padding bits added to the format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of the format OA.
  • the PDSCH is used to carry the information and is indicated by the Compact DCI carried by the ePDCCH.
  • the proprietary information is carried in the PDSCH, and is transmitted in the predefined subframes ⁇ 0, 2, 4, 6, 8 ⁇ , using 16QAM modulation, and the used TBS is one of the k types, occupying 2 in the full bandwidth 6RB.
  • the bandwidth of the RBs is the transmission mode of the transmit diversity.
  • the UE When receiving the proprietary information, the UE performs blind detection of the ePDCCH in the predefined subframes ⁇ 0, 2, 4, 6, 8 ⁇ . The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and then performs blind detection of the DCI Format IE according to the 2RB in the dedicated search space in the full bandwidth, and obtains the DCI and then obtains the PDSCH.
  • Proprietary information Proprietary information.
  • the configuration of the transfer mode at this time is: UE downlink transmission mode PDCCH corresponding PDSCH
  • port mode X DCI format IE or SPS-RNTI defined
  • the configuration of the DCI Format IE at this time is:
  • the DCI format IE is used for a PDSCH codeword and a compression schedule for a random access procedure initiated by a PDCCH order.
  • - Transmission mode identification - lbit 0 means single antenna port transmission
  • 1 means transmission diversity transmission mode (when only the transmit diversity transmission mode is supported, there is no such bit field). If the number of information bits of format 1E is less than the payload size of format OA (including any padding bits added to format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of format OA.
  • Example 8 If the number of information bits of format 1E is less than the payload size of format OA (including any padding bits added to format OA), format 1E must be padded with 0 until the payload size is equal to the payload size of format OA.
  • the PDSCH is used to carry the information and is indicated by the DCI carried by the PDCCH.
  • the proprietary information is carried in the PDSCH, and is transmitted in the predefined subframes 0 to 9.
  • the TBS used is one of the k types, and the bandwidth of the two RBs is occupied in the full bandwidth 6 RB.
  • the UE When receiving the proprietary information, the UE performs blind detection of the PDCCH in the predefined subframes 0 to 9. The UE detects whether the information is sent to itself according to the RNTI scrambled by the CRC attached to the message, and then blindly detects the DCI Format OA according to the CCE aggregation level in the proprietary search space in the full bandwidth, and obtains the DCI and then obtains the PDSCH.
  • Proprietary information Proprietary information.
  • the configuration of the transfer mode at this time is:
  • DCI format OA is used for PUSCH scheduling.
  • the following information is transmitted via the DCI format OA:
  • N gapl is defined in 36.211, see N definition.
  • format OA If the number of information bits in the format OA is less than the payload size of format 1E (including any padding bits added to format 1E), format OA must be padded with 0 until the payload size is equal to the payload size of format 1E.
  • This embodiment can be modified as follows: different DCI configurations are used; DCI format IE configuration of different number of bits; DCI format OA configuration of different number of bits; number of RBs occupied by PDSCH can be 1, 2, 3, 4, 5 6 RBs or more but less than the system bandwidth; the number of RBs occupied by the ePDCCH may be 1, 2, 4, 8 RB; different transmission mode settings; the predefined subframe may be any combination of 0 to 9;
  • the public information and the user-specific information may be in the same subframe and/or different children.
  • An embodiment of the present invention provides a base station, including: a downlink control information sending unit, configured to: MME transmit, by using a transmit diversity transmission mode, public information directly to a user equipment by using a physical downlink shared channel (PDSCH).
  • a downlink control information sending unit configured to: MME transmit, by using a transmit diversity transmission mode, public information directly to a user equipment by using a physical downlink shared channel (PDSCH).
  • PDSCH physical downlink shared channel
  • the downlink control information transmitting unit uses a CRS or DMRS pilot in a transmit diversity transmission mode.
  • the downlink control information sending unit sends the public information on a predefined subframe.
  • the predefined subframe is subframe 0 and/or subframe 5.
  • the PDSCH bandwidth is smaller than the system bandwidth.
  • the frequency domain resource of the PDSCH is a full bandwidth of the access bandwidth of the user equipment, or a predefined partial bandwidth of the user equipment access bandwidth.
  • the downlink control information sending unit scrambles the PDSCH by using a preset radio network temporary identifier RNTI.
  • the transport block size carried by the PDSCH is one of pre-defined k types, and k is a natural number.
  • the embodiment of the present invention further provides a user equipment, including: a detecting unit, configured to blindly detect a physical downlink shared channel (PDSCH) carrying public information, and obtain the public information.
  • a detecting unit configured to blindly detect a physical downlink shared channel (PDSCH) carrying public information, and obtain the public information.
  • PDSCH physical downlink shared channel
  • the detecting unit blindly detecting the PDSCH carrying the public information includes:
  • the predefined subframe is subframe 0 and/or subframe 5.
  • the blind detection is blind detection in units of one or more resource blocks RB.
  • the public information is directly transmitted in the PDSCH by removing the DCI, and the UE directly detects the PDSCH to obtain the public information, so as to prevent the UE from receiving the PDCCH control information due to the limited bandwidth, and the PDSCH cannot be detected and the public information cannot be obtained.
  • the control information overhead is saved.
  • the PDSCH is transmitted using a small bandwidth, which facilitates UE reception.
  • the size of the DCI Format is reduced by the Compact DCI Format, thereby reducing control information and improving coverage performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de transmission d'informations de commande de liaison descendante, consistant à : une station de base utilise un mode de transmission en diversité pour transmettre des informations publiques à un équipement utilisateur (UE) directement par un canal partagé de liaison descendante physique (PDSCH). L'invention concerne également un procédé de détection d'informations de commande de liaison descendante, comprenant les étapes consistant à : l'UE détecte à l'aveugle le PDSCH portant des informations publiques, et acquiert les informations publiques. L'invention concerne enfin un UE et une station de base. La solution ci-dessus réduit le surdébit des informations de commande.
PCT/CN2012/087496 2012-01-21 2012-12-26 Procédé de transmission d'informations de commande de liaison descendante, procédé de détection, station de base et équipement utilisateur WO2013107256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210019749.1 2012-01-21
CN2012100197491A CN103220691A (zh) 2012-01-21 2012-01-21 下行控制信息的发送方法、检测方法、基站和用户设备

Publications (1)

Publication Number Publication Date
WO2013107256A1 true WO2013107256A1 (fr) 2013-07-25

Family

ID=48798593

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/087496 WO2013107256A1 (fr) 2012-01-21 2012-12-26 Procédé de transmission d'informations de commande de liaison descendante, procédé de détection, station de base et équipement utilisateur

Country Status (2)

Country Link
CN (1) CN103220691A (fr)
WO (1) WO2013107256A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016161651A1 (fr) * 2015-04-10 2016-10-13 Nokia Technologies Oy Détermination d'espace de recherche de canal de commande de liaison descendante physique amélioré
CN108886449A (zh) * 2016-04-04 2018-11-23 高通股份有限公司 动态探测参考信号调度
CN113574824A (zh) * 2019-02-15 2021-10-29 Lg 电子株式会社 在无线通信系统中发送和接收信号的方法及支持其的设备

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015042835A1 (fr) 2013-09-26 2015-04-02 Qualcomm Incorporated Procédé et appareil pour une utilisation efficace de bits dai pour une eimta en lte
CN109547171B (zh) * 2013-09-26 2021-06-22 高通股份有限公司 用于针对LTE中的eIMTA有效使用DAI比特的方法和装置
CN104796987B (zh) * 2014-01-16 2020-01-14 中兴通讯股份有限公司 发送系统信息的方法和装置
CN104811264B (zh) * 2014-01-28 2019-09-24 中兴通讯股份有限公司 一种系统信息的传输方法、基站、终端和系统
CN110635885B (zh) * 2014-01-29 2024-01-26 北京璟石知识产权管理有限公司 数据传输方法和装置
EP3111582A4 (fr) * 2014-02-24 2017-10-25 Intel IP Corporation Équipement utilisateur et noeud b évolué et procédés d'accès aléatoire pour communication de type machine
JP6306204B2 (ja) * 2014-03-27 2018-04-04 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおいて下りリンク信号の送受信方法及びそのための装置
CN105024778B (zh) * 2014-04-16 2018-08-10 普天信息技术有限公司 下行信道的加扰方法
KR20150134908A (ko) * 2014-05-23 2015-12-02 삼성전자주식회사 무선통신 시스템에서 저비용(low-cost)단말의 송수신 방법 및 장치
CN105451155B (zh) * 2014-09-26 2020-10-27 中兴通讯股份有限公司 一种信道和信号传输方法及相应的终端、基站
CN105516888B (zh) 2014-09-26 2019-09-13 上海诺基亚贝尔股份有限公司 一种机器通信设备终端和基站中进行数据传输的方法
CN105635932B (zh) * 2014-11-07 2019-07-26 上海诺基亚贝尔股份有限公司 用于带宽受限设备的传输的方法和设备
CN106165470B (zh) * 2014-11-10 2019-09-20 华为技术有限公司 信息传输方法、设备和系统
JPWO2016117643A1 (ja) * 2015-01-23 2017-10-26 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
CN105992378B (zh) * 2015-02-27 2019-11-29 上海朗帛通信技术有限公司 一种增强的载波聚合中的pdcch方法和装置
EP3328145B1 (fr) * 2015-08-12 2021-06-30 Huawei Technologies Co., Ltd. Procédé de transmission de données, équipement de terminal, station de base, et système de communication
CN108365912B (zh) * 2017-01-26 2020-11-17 华为技术有限公司 传输模式切换方法及装置
CN110463101B (zh) * 2017-03-24 2023-03-17 苹果公司 用户设备的装置、基站的装置和机器可读存储介质
CN108696463B (zh) * 2017-04-06 2021-11-19 维沃软件技术有限公司 一种下行控制信道检测方法、终端及基站
EP3627946B1 (fr) * 2018-01-11 2023-03-08 LG Electronics Inc. Procédé de commande de terminal dans un système de communication sans fil, et dispositif l'utilisant
CN110166165B (zh) * 2018-02-13 2021-12-03 华为技术有限公司 聚合等级通知与接收的方法及装置
US20210219313A1 (en) * 2018-06-12 2021-07-15 Ntt Docomo, Inc. User terminal and radio communication method
WO2020220306A1 (fr) * 2019-04-30 2020-11-05 Zte Corporation Indication de ressource en accès aléatoire
CN111092692A (zh) * 2019-11-08 2020-05-01 中兴通讯股份有限公司 一种控制信息指示方法、通信节点及计算机可读存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102076098A (zh) * 2010-12-03 2011-05-25 中兴通讯股份有限公司 获取mbsfn子帧中下行控制信息的方法及系统
WO2011136113A1 (fr) * 2010-04-30 2011-11-03 株式会社エヌ・ティ・ティ・ドコモ Procédé de transmission de données, dispositif de station de base et dispositif de station mobile
CN102238621A (zh) * 2010-04-29 2011-11-09 中兴通讯股份有限公司 基于物理下行共享信道传输公共数据的方法和系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101651514B (zh) * 2008-08-15 2012-09-05 展讯通信（上海）有限公司 时分高速下行分组接入系统中发送和接收方法
CN101714892B (zh) * 2009-11-02 2014-12-31 中兴通讯股份有限公司 一种下行控制信息的传输方法及系统
CN102792600B (zh) * 2010-01-11 2015-05-20 黑莓有限公司 用于控制信道干扰管理和扩展pdcch的系统和方法
CN101808408B (zh) * 2010-02-11 2015-06-03 中兴通讯股份有限公司 下行控制信息的传输方法及传输系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238621A (zh) * 2010-04-29 2011-11-09 中兴通讯股份有限公司 基于物理下行共享信道传输公共数据的方法和系统
WO2011136113A1 (fr) * 2010-04-30 2011-11-03 株式会社エヌ・ティ・ティ・ドコモ Procédé de transmission de données, dispositif de station de base et dispositif de station mobile
CN102076098A (zh) * 2010-12-03 2011-05-25 中兴通讯股份有限公司 获取mbsfn子帧中下行控制信息的方法及系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016161651A1 (fr) * 2015-04-10 2016-10-13 Nokia Technologies Oy Détermination d'espace de recherche de canal de commande de liaison descendante physique amélioré
US10333676B2 (en) 2015-04-10 2019-06-25 Nokia Technologies Oy EPDCCH search space determination
CN108886449A (zh) * 2016-04-04 2018-11-23 高通股份有限公司 动态探测参考信号调度
CN113574824A (zh) * 2019-02-15 2021-10-29 Lg 电子株式会社 在无线通信系统中发送和接收信号的方法及支持其的设备
CN113574824B (zh) * 2019-02-15 2023-08-22 Lg 电子株式会社 在无线通信系统中发送和接收信号的方法及支持其的设备

Also Published As

Publication number Publication date
CN103220691A (zh) 2013-07-24

Similar Documents

Publication Publication Date Title
WO2013107256A1 (fr) Procédé de transmission d'informations de commande de liaison descendante, procédé de détection, station de base et équipement utilisateur
KR102207809B1 (ko) 무선 통신 시스템에서 자원 할당 방법 및 상기 방법을 이용하는 장치
WO2013107250A1 (fr) Procédé de transmission d'informations de commande de liaison descendante et station de base
CN108419296B (zh) 用于无线通信系统中的控制信道传送的方法和设备
TWI451792B (zh) 提供增強發信號的方法及裝置
KR101639407B1 (ko) 이동통신 시스템에서 채널상태정보를 전송하는 장치 및 그 방법
CN106416404B (zh) 终端装置、基站装置以及通信方法
WO2018230701A1 (fr) Dispositif de station de base, dispositif terminal, et procédé de communication associé
DK2248383T3 (en) PROCEDURE AND APPARATUS FOR INDICATING THE DISABLING OF SEMI-PRESENT PLANNING
JP6163554B2 (ja) 端末装置、基地局装置、および通信方法
EP3018933B1 (fr) Dispositif de terminal, dispositif de station de base, circuit intégré et procédé de communication
JP6162244B2 (ja) 端末装置、基地局装置、および通信方法
EP3403344B1 (fr) Canal de contrôle pour un réseau sans fil
JP2020504472A (ja) 混合ヌメロロジーをサポートするシステムのためのシーケンス生成
CN115568032A (zh) 用于支持无线局域网（wlan）系统的多用户传输的方法、装置和系统
CN106664694B (zh) 终端装置、基站装置、通信方法以及集成电路
JP2013516871A (ja) キャリア・アグリゲーションを使用する通信システムのための送信電力制御シグナリング
WO2018229736A1 (fr) Indication de forme d'onde dans des réseaux de communication sans fil
CN107710804B (zh) 终端装置、基站装置、通信方法以及集成电路
EP3024269B1 (fr) Transmission adaptive d'information d'etat de canal dans la liaison montante d'un systeme tdd
CN106576316B (zh) 终端装置、基站装置、通信方法以及集成电路
WO2018051707A1 (fr) Dispositif de terminal, dispositif de station de base, procédé de communications, et circuit intégré
CN107736050B (zh) 终端装置、基站装置、通信方法以及集成电路
JP2022534239A (ja) ２ステップのランダムアクセス手順のための複数の物理アップリンク共有チャネルリソースユニットへの１つのプリアンブルのマッピング
EP3914016A1 (fr) Procédé et appareil de génération de bloc de transport avec multiplexage spatial ul en liaison montante dans un système de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12866057

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12866057

Country of ref document: EP

Kind code of ref document: A1