WO2014106322A1 - Procédé de transmission de données, dispositif, équipement de réseau et équipement d'utilisateur - Google Patents

Procédé de transmission de données, dispositif, équipement de réseau et équipement d'utilisateur Download PDF

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Publication number
WO2014106322A1
WO2014106322A1 PCT/CN2013/070017 CN2013070017W WO2014106322A1 WO 2014106322 A1 WO2014106322 A1 WO 2014106322A1 CN 2013070017 W CN2013070017 W CN 2013070017W WO 2014106322 A1 WO2014106322 A1 WO 2014106322A1
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WO
WIPO (PCT)
Prior art keywords
enhanced
information
message
sib
channel
Prior art date
Application number
PCT/CN2013/070017
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English (en)
Chinese (zh)
Inventor
张宁波
余政
南方
程型清
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380002740.2A priority Critical patent/CN104041165B/zh
Priority to PCT/CN2013/070017 priority patent/WO2014106322A1/fr
Publication of WO2014106322A1 publication Critical patent/WO2014106322A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, network device, and user equipment. Background technique
  • Machine Type Communication is a communication method between people and H2H. It refers to an automatic communication without human intervention.
  • machine-type communication equipment will be placed in devices with large penetration loss.
  • remote meter reading equipment may be placed in a basement where the penetration loss is relatively high, and may be placed.
  • Large penetration loss causes the wireless signal to attenuate sharply, making these devices unable to access existing wireless communication systems, such as GSM/GPRS, LTE systems, etc.
  • GSM/GPRS Global System for Mobile communications
  • LTE Long Term Evolution
  • the special subframe cluster structure includes an enhanced uplink channel and a downlink channel to ensure that such devices are normally present.
  • control information and the data information are subjected to coverage enhancement processing, that is, the network device sends the control information and the data information after the coverage enhancement processing to the user equipment, where the data information includes the physical downlink shared channel PDSCH transmission.
  • the control information includes data transmitted through a physical broadcast channel PBCH and data transmitted through a physical downlink control channel PDCCH, or the control information includes data transmitted through a physical broadcast channel PBCH, data transmitted through a physical downlink control channel PDCCH And transmitted pilot signal data.
  • a data transmission method, an access method, a network device, and a user equipment are provided, so as to solve the existing coverage enhancement technology, the access time of the user equipment requiring coverage enhancement is longer, and no coverage enhancement is needed.
  • User equipment brings technical problems with overhead.
  • the first aspect provides a data transmission method, including:
  • the synchronization information is sequentially transmitted to the user equipment UE on the enhanced synchronization channel, and the system information is transmitted on the channel of the enhanced bearer system information.
  • the enhancing the channel carrying the system information includes: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, and a physical downlink sharing carrying a SIB-1 message
  • a physical broadcast channel PBCH carrying a primary information block MIB message carrying a primary information block MIB message
  • a physical downlink control channel PDCCH carrying a system information block SIB-1 message
  • a physical downlink sharing carrying a SIB-1 message The channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced;
  • Transmitting the system message on the enhanced channel information of the bearer system includes: transmitting the MIB message on the enhanced PBCH, transmitting the control information of the scheduling SIB-1 on the enhanced PDCCH, and sending the SIB-1 message on the enhanced PDSCH,
  • the SIB-2 control information is transmitted on the enhanced PDCCH, and the SIB-2 message is transmitted on the enhanced PDSCH.
  • the enhancing the channel that carries the system information includes: enhancing the physical downlink channel that carries the system information; where the system information includes at least one of the MIB message and at least one of the SIB-1 messages. At least one of information and SIB-2 messages;
  • the transmitting the system message on the enhanced channel carrying system information comprises: transmitting the system message on the enhanced physical downlink channel.
  • the resources required for the enhanced subframe cluster include:
  • the determining manner of sending the required resources of the enhanced subframe cluster include:
  • the resources required for transmitting the enhanced subframe cluster are determined in a static manner, a semi-static manner, or a dynamic manner; or the required resources for transmitting the enhanced subframe cluster and the enhanced subframe cluster type are determined for the UE according to the acquired UE information.
  • the method for determining, by using the static mode, the semi-static mode, and the dynamic scheduling, the method for transmitting the resource required for sending the enhanced subframe cluster is specifically: the method of controlling the RRC common signaling, the RRC dedicated signaling, or the control channel by using the radio resource Notifying the UE of the indication information of the resources required to enhance the subframe cluster; or
  • the indication information of the required resources is notified to the UE.
  • the information is used by the UE to determine the resources required for sending the enhanced subframe cluster, and specifically includes:
  • the channel quality measurement information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information;
  • the second aspect provides a data transmission method, including:
  • the PDSCH, the PUSCH corresponding to the bearer layer 2/layer 3 message, the PDCCH corresponding to the bearer contention resolution message, and the PDSCH corresponding to the bearer contention resolution message are sequentially enhanced;
  • the synchronization information is sequentially transmitted on the enhanced SCH, the system information is transmitted on the channel carrying the enhanced bearer information, and the preamble sequence code information received on the enhanced PRACH is performed.
  • Transmitting control information for scheduling a random access response RAR message on the enhanced PDCCH transmitting a RAR message on the enhanced PDSCH, receiving a layer 2/layer 3 message on the enhanced PUSCH, and transmitting a scheduling contention resolution message on the enhanced PDCCH Information, sending a contention resolution message on the enhanced PDSCH.
  • the enhancing the channel carrying the system information includes: a physical downlink channel PBCH carrying the primary information block MIB message, a physical downlink control channel PDCCH carrying the system information block SIB-1 message, and a physical downlink sharing carrying the SIB-1 message
  • the channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced;
  • the transmitting the system message on the enhanced channel includes: sequentially transmitting an MIB message on the enhanced PBCH, transmitting control information for scheduling the SIB-1 on the enhanced PDCCH, and transmitting the SIB-1 message on the enhanced PDSCH, in the enhanced
  • the control information of scheduling SIB-2 is transmitted on the PDCCH, and the SIB-2 message is transmitted on the enhanced PDSCH.
  • the enhancing the channel that carries the system information includes: enhancing the physical downlink channel that carries the system information; where the system information includes at least one of the MIB message and at least one of the SIB-1 messages. At least one of information and SIB-2 messages;
  • the transmitting the system message on the enhanced channel comprises: transmitting the system message on the enhanced physical downlink channel.
  • the resources required for the enhanced subframe cluster include:
  • the determining manner of sending the required resources of the enhanced subframe cluster includes:
  • the resources required for transmitting the enhanced subframe cluster are determined in a static manner, a semi-static manner, or a dynamic manner; or the required resources for transmitting the enhanced subframe cluster and the enhanced subframe cluster type are determined for the UE according to the acquired UE information.
  • the determining, by the static mode, the semi-static mode, and the dynamic scheduling, the resources required for sending the enhanced subframe cluster is: the enhanced subframe by using the RRC common signaling, the RRC dedicated signaling, or the control channel by the radio resource. Notifying the UE of the indication information of the resources required by the cluster; or
  • the indication information of the required resource is notified to the UE.
  • the acquiring the channel of the UE The quality information is used by the UE to determine the resources required for sending the enhanced subframe cluster, and specifically includes:
  • the channel quality measurement information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information;
  • the third aspect provides an access method, including:
  • the system information that is sent by the receiving network device on the enhanced channel that carries the system information includes: receiving, in sequence, an MIB message sent by the network device on the enhanced PBCH, and scheduling control information of the SIB-1 sent on the enhanced PDCCH, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH;
  • Decoding the received system information to obtain corresponding information including: sequentially decoding the received MIB message to obtain MIB information; and controlling the received scheduling SIB-1
  • the information is decoded to obtain the location information of the resource occupied by the SIB-1
  • the received SIB-1 message is decoded to obtain the SIB-1 information
  • the received control information of the scheduled SIB-2 is performed.
  • the system information that is sent by the receiving network device on the enhanced channel that carries the system information includes: receiving system information that is sent by the network device on the enhanced physical downlink channel, where the system information includes: at least one of the MIB messages At least one of the information, the SIB-1 message, and the at least one of the SIB-2 messages; the decoding the received system information to obtain corresponding information.
  • the resources required for the enhanced subframe cluster include:
  • the determining manner of sending the required resources of the enhanced subframe cluster includes:
  • the indication information of the required resources for receiving the enhanced subframe cluster is determined by using RRC common signaling, RRC dedicated signaling, and control channel manner.
  • determining the required resources of the enhanced subframe cluster Previously it also included:
  • the network measuring device Transmitting, by the network measuring device, measurement information of the channel quality; the channel quality measurement information includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information; and receiving an enhanced subframe sent by the network device The indication information of the required resources of the cluster and/or the enhanced subframe cluster type indication information.
  • the fourth aspect provides an access method, including:
  • the system information that is sent by the receiving network device on the enhanced channel that carries the system information includes: receiving, in sequence, an MIB message sent by the network device on the enhanced PBCH, and scheduling control information of the SIB-1 sent on the enhanced PDCCH, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH;
  • Decoding the received system information, and obtaining the corresponding information specifically includes: sequentially decoding the received MIB message to obtain MIB information; and controlling the received scheduling SIB-1
  • the information is decoded, the location information of the resource occupied by the SIB-1 is obtained, the received SIB-1 message is decoded, the SIB-1 information is obtained, and the received control information of the scheduled SIB-2 is performed.
  • the system information that is sent by the receiving network device on the enhanced channel that carries the system information includes: receiving, in sequence, at least one of the MIB messages sent by the network device on the enhanced physical downlink channel, in the SIB-1 message At least one of information and at least one of SIB-2 messages;
  • the decoding the received system information to obtain corresponding information.
  • the resources required for the enhanced subframe cluster include:
  • the determining manner of sending the required resources of the enhanced subframe cluster includes:
  • the indication information of the required resources for receiving the enhanced subframe cluster is determined by using RRC common signaling, RRC dedicated signaling, and control channel manner.
  • determining the required resources of the enhanced subframe cluster Previously it also included:
  • the channel quality information includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information;
  • a fifth aspect provides a data transmission apparatus, including:
  • a determining unit configured to determine a resource required to send the enhanced subframe cluster
  • an enhancement unit configured to sequentially enhance, on the resource, a synchronization channel SCH carrying the synchronization information and a channel carrying the system information in the enhanced subframe cluster;
  • a sending unit configured to send, in the enhanced subframe group, synchronization information to the user equipment UE on the enhanced SCH, and send the system information on the channel of the enhanced bearer system information;
  • the enhancement unit is configured to enhance a channel that carries system information, including: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, and a bearer SIB-1 message.
  • the physical downlink shared channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced; the transmitting unit is configured to send on the channel of the enhanced bearer system information.
  • the system message includes: transmitting an MIB message on the enhanced PBCH, transmitting control information for scheduling the SIB-1 on the enhanced PDCCH, transmitting the SIB-1 message on the enhanced PDSCH, and transmitting the control of scheduling the SIB-2 on the enhanced PDCCH.
  • the enhancement unit is configured to enhance the channel that carries the system information, and includes: used to enhance the physical downlink channel that carries the system information; where the system information includes at least one of the MIB messages, the SIB-1 At least one of the information and at least one of the SIB-2 messages;
  • the sending unit is configured to send the system message on the enhanced channel carrying system information, including: sending the system message on the enhanced physical downlink channel.
  • the determining unit determines the resources required to enhance the subframe cluster, specifically including the location where the enhanced subframe cluster appears in time and frequency; and/or, the enhanced transmit power of the subframe cluster.
  • the determining unit includes:
  • a first determining unit configured to determine, by using a predefined manner, a required resource for sending the enhanced subframe cluster
  • a second determining unit configured to determine, by using a static manner, a semi-static manner, or a dynamic manner, to send the enhanced subframe cluster Required resources
  • a third determining unit configured to determine, according to the acquired UE information, a resource and an enhanced subframe cluster type required for sending the enhanced subframe cluster for the UE.
  • the method for the second determining unit to send the resource is specifically: notifying, by using a radio resource, the RRC common signaling, the RRC dedicated signaling, or the control channel, the indication information of the resource required for the enhanced subframe cluster UE; or,
  • the manner in which the third determining unit sends the resource is specifically: notifying, by using the RRC common signaling, the RRC proprietary signaling, or the control channel, the indication information of the resources required by the enhanced subframe cluster to the UE.
  • the third determining unit includes :
  • a receiving unit configured to receive channel quality information sent by the UE, where the channel quality information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information, and an indication information determining unit, configured to The channel quality information is used by the UE to determine indication information of a corresponding enhanced subframe cluster type and indication information of a required resource for transmitting an enhanced subframe cluster.
  • the channel quality information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information
  • an indication information determining unit configured to The channel quality information is used by the UE to determine indication information of a corresponding enhanced subframe cluster type and indication information of a required resource for transmitting an enhanced subframe cluster.
  • a sixth aspect provides a data transmission apparatus, including:
  • a determining unit configured to determine a resource required to send the enhanced subframe cluster
  • An enhancement unit configured to, on the resource, a synchronization channel SCH carrying the synchronization information in the enhanced subframe cluster, a channel carrying system information, a PRACH corresponding to the bearer sequence code Preamble, and a PDCCH corresponding to the random access response RAR
  • the PDSCH corresponding to the RAR, the PUSCH corresponding to the bearer layer 2/layer 3 message, the PDCCH corresponding to the bearer contention resolution message, and the PDSCH corresponding to the bearer contention resolution message are sequentially enhanced; the transceiver unit is configured to be used in the enhanced subframe group.
  • the control information, the RAR message is sent on the enhanced PDSCH, the layer 2/layer 3 message is received on the enhanced PUSCH, the control information for scheduling the contention resolution message is sent on the enhanced PDCCH, and the contention resolution message is sent on the enhanced PDSCH.
  • the enhancement unit is configured to sequentially enhance the channel of the bearer system information, including: The physical broadcast channel PBCH of the block MIB message, the physical downlink shared channel PDSCH of the bearer system information block SIB-1 message, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially performed. Enhance
  • the sending unit configured to send the system information on the channel of the enhanced bearer system information, specifically includes: sending the MIB message on the enhanced PBCH; and transmitting the control information of scheduling the SIB-1 on the enhanced PDCCH, where The PDSCH transmits an SIB-1 message, transmits control information for scheduling SIB-2 on the enhanced PDCCH, and transmits an SIB-2 message on the enhanced PDSCH.
  • the enhancement unit is configured to enhance the channel that carries the system information, and includes: used to enhance the physical downlink channel that carries the system information; where the system information includes: at least one type of information in the MIB message, SIB- At least one of the information in the message and at least one of the SIB-2 messages;
  • the sending unit is configured to send the system message on the enhanced channel carrying system information, including: sending the system message on the enhanced physical downlink channel.
  • the determining unit determines a resource required for enhancing the subframe cluster, specifically, the enhanced subframe The location of the cluster in time and frequency; and/or, the transmit power of the subframe cluster is enhanced.
  • the determining unit includes:
  • a first determining unit configured to determine, by using a predefined manner, a required resource for sending an enhanced subframe cluster
  • a second determining unit configured to determine, by using a static manner, a semi-static manner, or a dynamic manner, that the enhanced subframe cluster is sent Resources
  • a third determining unit configured to determine, according to the acquired UE information, a resource and an enhanced subframe cluster type required for sending the enhanced subframe cluster for the UE.
  • the method for the second determining unit to send the resource is specifically: notifying, by using a radio resource, the RRC common signaling, the RRC dedicated signaling, or the control channel, the indication information of the resource required for the enhanced subframe cluster UE; or,
  • the manner in which the third determining unit sends the resource is specifically: through RRC public signaling, RRC proprietary signaling
  • the manner of the command or control channel notifies the UE of the indication information of the resources required for the enhanced subframe cluster.
  • the third determining unit includes :
  • a receiving unit configured to receive channel quality information sent by the UE, where the channel quality information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information, and an indication information determining unit, configured to The channel quality information is used by the UE to determine indication information of a corresponding enhanced subframe cluster type and indication information of a required resource for transmitting an enhanced subframe cluster.
  • the channel quality information is path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information
  • an indication information determining unit configured to The channel quality information is used by the UE to determine indication information of a corresponding enhanced subframe cluster type and indication information of a required resource for transmitting an enhanced subframe cluster.
  • a seventh aspect provides an access device, including:
  • a determining unit configured to determine a required resource of the enhanced subframe cluster
  • a receiving unit configured to receive, in the enhanced subframe group, a synchronization signal sent by the network device on the enhanced synchronization channel SCH in turn, and system information sent on the channel carrying the enhanced system information;
  • An access unit configured to obtain time synchronization with the base station according to the synchronization information, and decode the system information to obtain corresponding information.
  • the receiving unit is configured to receive system information sent on the channel of the enhanced bearer system information, including: receiving, in sequence, a MIB message sent by the network device on the enhanced PBCH, and controlling the scheduling SIB-1 sent on the enhanced PDCCH Information, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH;
  • the access unit is configured to decode the system information to obtain corresponding information, including: sequentially decoding the received MIB message to obtain MIB information; and controlling the received scheduling SIB-1
  • the information is decoded to obtain the location information of the resource occupied by the SIB-1, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received control information of the scheduled SIB-2 is performed. Decoding, obtaining location information of resources occupied by the SIB-2, decoding the received SIB-2 message, and obtaining an SIB-2 message.
  • the receiving unit is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving system information that is sent by the network device on the enhanced physical downlink channel, where the system information includes: At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages;
  • the access unit is configured to decode the received system information to obtain corresponding information, including: Decoding at least one of the received MIB messages to obtain MIB information, and decoding at least one of the received SIB-1 messages to obtain SIB-1 information; At least one of the information in the SIB-2 message is decoded to obtain SIB-2 information.
  • the determining, by the determining unit, the required resources of the enhanced subframe cluster specifically includes: an enhancer The position at which the frame cluster appears in time and frequency, and/or enhances the transmit power of the subframe cluster.
  • the determining unit includes:
  • a first determining unit configured to determine, by using a RRC common signaling, an RRC dedicated signaling, a control channel, or the like, by using a RRC common signaling, a RRC dedicated signaling, or the like, by using a RRC common signaling, a control channel, or the like.
  • the method further includes:
  • a first sending unit configured to send channel quality information to the network measurement device before the determining unit determines the required resources of the enhanced subframe cluster;
  • the channel quality information includes: path loss path loss information, reference signal receiving signal Power RSRP information and/or channel quality indication CQI information;
  • a second receiving unit configured to receive indication information of the required resources of the enhanced subframe cluster sent by the network device, and/or enhanced subframe cluster type indication information.
  • the eighth aspect provides an access device, including:
  • a determining unit configured to determine a required resource of the enhanced subframe cluster
  • a transceiver unit configured to receive, in the enhanced subframe group, synchronization information sent by the network device on the enhanced SCH, and system information sent on the enhanced channel carrying the system information, to the network device on the enhanced PRACH Sending a sequence code preamble, receiving control information of a scheduled random access response RAR message sent by the network device on the enhanced PDCCH, receiving a RAR message sent by the network device on the enhanced PDSCH, and transmitting the layer 2/ to the network device on the enhanced PUSCH.
  • the layer 3 message receives control information of the scheduling contention resolution message sent by the network device on the enhanced PDCCH, and receives a contention resolution message sent by the network device on the enhanced PDSCH.
  • An access unit configured to obtain time synchronization with the base station according to the received synchronization information, and decode the received system information to obtain corresponding information; and receive the RAR message.
  • Decoding the control information to obtain location information of the resource occupied by the RAR message; and receiving the received RAR message Decoding, obtaining RAR information; obtaining control information of the scheduling contention resolution message, obtaining location information of a resource occupied by the contention resolution message; decoding the received contention resolution message to obtain contention resolution information .
  • the system information that is sent by the transceiver unit on the enhanced channel carrying the system information includes: an MIB message sent on the enhanced PBCH; the control information of the scheduling SIB-1 sent on the enhanced PDCCH, in the enhanced SIB-1 message transmitted by the PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH;
  • the access unit is configured to decode the received system information to obtain corresponding information, including: sequentially decoding the received MIB message to obtain MIB information; and receiving the received scheduling
  • the control information of the SIB-1 is decoded, and the location information of the resource occupied by the SIB-1 is obtained, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received SIB-1 is received.
  • the control information of 2 is decoded, and the location information of the resources occupied by the SIB-2 is obtained, and the received SIB-2 message is decoded to obtain an SIB-2 message.
  • the receiving unit is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving system information that is sent by the network device on the enhanced physical downlink channel, where the system information includes: At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages;
  • the access unit is configured to decode the received system information, and obtain corresponding information, including: decoding at least one of the received MIB messages to obtain MIB information, and receiving At least one of the received SIB-1 messages is decoded to obtain SIB-1 information; and at least one of the received SIB-2 messages is decoded to obtain SIB-2 information.
  • the determining unit determines the required resources of the enhanced subframe cluster to specifically include: enhancing the position of the subframe cluster in time and frequency, and/or enhancing the transmission power of the subframe cluster.
  • the determining unit includes: a first determining unit, configured to determine, by using a RRC common signaling, an RRC dedicated signaling, a control channel, or the like, by using a RRC common signaling, a RRC dedicated signaling, or the like, by using a RRC common signaling, a control channel, or the like.
  • the method further includes:
  • a first sending unit configured to send channel quality information to the network measurement device before the determining unit determines the required resources of the enhanced subframe cluster;
  • the channel quality information includes: path loss path loss information, reference signal receiving signal Power RSRP information and/or channel quality indication CQI information;
  • a second receiving unit configured to receive indication information of the required resources of the enhanced subframe cluster sent by the network device, and/or enhanced subframe cluster type indication information.
  • a ninth aspect provides a network device, including:
  • a processor configured to determine a resource required for transmitting the enhanced subframe cluster; and sequentially enhancing, on the resource, a synchronization channel carrying the synchronization information and a channel carrying the system information in the enhanced subframe cluster;
  • a wireless transceiver configured to send, in the enhanced subframe cluster, synchronization information to the user equipment UE on the enhanced synchronization channel, and send the system information on the channel of the enhanced bearer system information.
  • the processor is configured to enhance a channel carrying system information, including: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, and a SIB-1 message carrying The physical downlink shared channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced;
  • the wireless transceiver is configured to send the system message on the enhanced channel, including: Transmitting the MIB message on the enhanced PBCH, transmitting the control information of the scheduling SIB-1 on the enhanced PDCCH, transmitting the SIB-1 message on the enhanced PDSCH, and transmitting the control information of the scheduling SIB-2 on the enhanced PDCCH, in the enhanced The SIB-2 message is sent on the PDSCH.
  • the processor is configured to enhance the channel that carries the system information, including: enhancing the physical downlink channel that carries the system information; where the system information includes at least one of the information in the MIB message, and the SIB-1 message At least one of information and at least one of SIB-2 messages;
  • the wireless transceiver is configured to transmit a system message on an enhanced channel, comprising: transmitting the system message on an enhanced physical downlink channel.
  • the processor is configured to determine that the resource enhancement required to send the enhanced subframe cluster includes: The position at which the subframe cluster appears in time and frequency, and/or enhances the transmit power of the subframe cluster.
  • the processor determines, according to the following manner, that the enhanced subframe cluster is sent Required resource enhancement: Determine the required resources for sending enhanced subframe clusters in a predefined manner; or
  • the resources required for transmitting the enhanced subframe cluster are determined in a static manner, a semi-static manner, or a dynamic manner; or the required resources for transmitting the enhanced subframe cluster and the enhanced subframe cluster type are determined for the UE according to the acquired UE information.
  • the processor is in a static mode
  • a semi-static mode Dynamic scheduling determines the resources required to send the enhanced subframe clusters as follows:
  • the indication information of the required resources is notified to the UE.
  • a tenth aspect provides a network device, including:
  • a processor configured to determine a resource required for transmitting the enhanced subframe cluster; and corresponding to the synchronization channel SCH carrying the synchronization information, the channel carrying the system information, and the bearer sequence code Preamble in the enhanced subframe cluster on the resource
  • the PRACH, the PDCCH corresponding to the RAR, the PDSCH corresponding to the RAR, the PUSCH corresponding to the bearer layer 2/layer 3 message, the PDCCH corresponding to the bearer contention resolution message, and the PDSCH corresponding to the bearer contention resolution message are sequentially enhanced;
  • a wireless transceiver configured to send synchronization information on the enhanced SCH in sequence in the enhanced subframe cluster, to send system information on the enhanced channel information of the bearer system information, and to receive preamble sequence code information on the enhanced PRACH And transmitting control information for scheduling a random access response RAR message on the enhanced PDCCH, transmitting a RAR message on the enhanced PDSCH, receiving a layer 2/layer 3 message on the enhanced PUSCH, and sending a scheduling contention resolution message on the enhanced PDCCH. Control information, send contention on enhanced PDSCH Resolve the message.
  • the processor is configured to enhance a channel carrying system information, including: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, and a SIB-1 message carrying The physical downlink shared channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced; the wireless transceiver is configured to transmit the system on the enhanced bearer system information channel
  • the message includes: sending an MIB message on the enhanced PBCH, transmitting control information for scheduling SIB-1 on the enhanced PDCCH, transmitting an SIB-1 message on the enhanced PDSCH, and transmitting control information for scheduling the SIB-2 on the enhanced PDCCH. , sending an SIB-2 message on the enhanced PDSCH.
  • the processor is configured to enhance the channel that carries the system information, including: enhancing the physical downlink channel that carries the system information; where the system information includes at least one of the information in the MIB message, and the SIB-1 message At least one of information and at least one of SIB-2 messages;
  • the wireless transceiver is configured to transmit a system message on the enhanced channel, comprising: transmitting the system message on an enhanced physical downlink channel.
  • the processor is configured to determine resources required to transmit the enhanced subframe cluster, including: enhancing a location of the subframe clusters in time and frequency, and/or enhancing transmit power of the subframe clusters.
  • the processor determines, according to the following manner, that the enhanced subframe cluster is sent Required resources; determine the required resources for transmitting enhanced subframe clusters in a predefined manner; or
  • the resources required for transmitting the enhanced subframe cluster are determined in a static manner, a semi-static manner, or a dynamic manner; or the required resources for transmitting the enhanced subframe cluster and the enhanced subframe cluster type are determined for the UE according to the acquired UE information.
  • the processor determines, by using a static mode, a semi-static mode, and a dynamic scheduling, the resources required for sending the enhanced subframe cluster
  • the source is specifically: the RRC common signaling, the RRC dedicated signaling, or the control channel is used to notify the UE of the indication information of the resources required for the enhanced subframe cluster; or
  • the indication information of the required resource is notified to the UE.
  • the eleventh aspect provides a user equipment, including:
  • a processor configured to determine a required resource for enhancing the subframe cluster
  • a transceiver configured to receive, in the enhanced subframe group, synchronization information that the network device sequentially sends on the enhanced synchronization channel, and system information that is sent on the enhanced channel that carries the system information;
  • the processor is further configured to: obtain time synchronization with the base station according to the received synchronization information, and decode the system information to obtain corresponding information.
  • the transceiver is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving, in sequence, an MIB message sent by the network device on the enhanced PBCH, and scheduling the SIB-1 sent on the enhanced PDCCH. Control information, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduled SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH;
  • the processor is configured to decode the received system information to obtain corresponding information, including: sequentially decoding the received MIB message to obtain MIB information; and receiving the scheduled SIB-
  • the control information of 1 is decoded, and the location information of the resource occupied by the SIB-1 is obtained, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received SIB-2 is scheduled. Control information is decoded and obtained
  • the SIB-2 occupies the location information of the resource, and decodes the received SIB-2 message to obtain the SIB-2 message.
  • the transceiver is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving system information sent by the network device on the enhanced physical downlink channel, where the system information includes: At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages;
  • the processor is configured to decode the received system information to obtain corresponding information.
  • the required resources used by the processor to determine the enhanced subframe cluster include: Enhance the position of the sub-frame clusters in time and frequency, and/or enhance the transmit power of the sub-frame clusters.
  • the processor determines to send an enhanced subframe according to the following manner Required resources for the cluster:
  • the indication information of the required resources of the enhanced subframe cluster is received by means of RRC common signaling, RRC dedicated signaling, control channel, and the like.
  • the transceiver is configured to: before the determining, by the processor, the required resources of the enhanced subframe cluster, the channel quality measurement information is sent to the network measurement device; the channel quality measurement information includes: a path loss path The loss information, the reference signal received signal power RSRP information, and/or the channel quality indication CQI information; and the indication information of the required resources of the enhanced subframe cluster transmitted by the network device and/or the enhanced subframe cluster type indication information.
  • a twelfth aspect provides a user equipment, including:
  • a processor configured to determine a required resource for enhancing the subframe cluster
  • a transceiver configured to, in the enhanced subframe group, sequentially receive synchronization information sent by the network device on the enhanced SCH, and system information sent on the channel of the enhanced bearer system information, to the network device on the enhanced PRACH Sending a sequence code preamble, receiving control information of a scheduled random access response RAR message sent by the network device on the enhanced PDCCH, receiving a RAR message sent by the network device on the enhanced PDSCH, and transmitting the layer 2 to the network device on the enhanced PUSCH / Layer 3 message, receiving control information of the scheduling contention resolution message sent by the network device on the enhanced PDCCH, and receiving a contention resolution message sent by the network device on the enhanced PDSCH.
  • the processor is further configured to: obtain time synchronization with the base station according to the received synchronization information, and decode the received system information to obtain corresponding information; and receive the RAR.
  • the control information of the message is decoded to obtain location information of the resource occupied by the RAR message; the received RAR message is decoded to obtain RAR information; and the control information of the received scheduling contention resolution message is obtained, and the competition is obtained. Resolving location information of the resource occupied by the message; decoding the received contention resolution message to obtain contention resolution information.
  • the transceiver configured to receive system information sent by the network device on the enhanced bearer system information, includes: sequentially receiving an MIB message sent by the network device on the enhanced PBCH, and scheduling the SIB sent on the enhanced PDCCH. 1 control information, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH; the processor is also used Decoding the received system information, and obtaining the corresponding information specifically includes: sequentially decoding the received MIB message to obtain MIB information; and receiving control information of the scheduled SIB-1 Decoding, obtaining location information of resources occupied by the SIB-1, decoding the received SIB-1 message, obtaining SIB-1 information, and translating the received control information of the scheduled SIB-2 The code obtains the location information of the resource occupied by the SIB-2, and decodes the received SIB-2 message to obtain the SIB-2 message.
  • the transceiver is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving, in sequence, at least one of MIB messages sent by the network device on the enhanced physical downlink channel, SIB-1 At least one of the information and at least one of the SIB-2 messages;
  • the processor is configured to decode the received system information to obtain corresponding information, including: sequentially decoding at least one of the received MIB messages to obtain MIB information, and receiving the At least one of the SIB-1 messages is decoded to obtain SIB-1 information; and at least one of the received SIB-2 messages is decoded to obtain SIB-2 information.
  • the determining, by the processor, the required resources of the enhanced subframe cluster includes: The position at which the subframe cluster appears in time and frequency, and/or enhances the transmit power of the subframe cluster.
  • the processor determines, by using the following manner, that the enhanced subframe is sent Required resources for the cluster:
  • the indication information of the required resources for receiving the enhanced subframe cluster is determined by using RRC common signaling, RRC dedicated signaling, and control channel manner.
  • the transceiver is configured to: before the determining, by the processor, the required resources of the enhanced subframe cluster, send channel quality information to the network measurement device;
  • the method includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information; and indication information of receiving required resources of the enhanced subframe cluster sent by the network device, and/or enhanced subframe cluster type Instructions.
  • all downlink channels required for establishing a connection in the enhanced subframe cluster are sequentially enhanced on the resource. Therefore, the UE that needs coverage enhancement can successfully complete the establishment of the connection within the enhanced subframe cluster, thereby reducing the access time of the UE that needs to cover the enhanced.
  • all downlink channels required for establishing a connection are enhanced only in the enhanced subframe cluster, and non-enhanced channels are still used on other subframes except the enhanced subframe cluster, and the reduction is not performed.
  • the impact of enhanced UEs ie legacy UEs
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is another flowchart of a ⁇ data transmission method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for accessing according to an embodiment of the present invention.
  • FIG. 44 is another flow chart of an access method provided by the embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is another schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a user equipment in an embodiment according to an embodiment of the present disclosure.
  • FIG. 99 is a schematic diagram showing a frame structure of an enhanced subframe cluster provided by the embodiment of the present invention.
  • FIG. 10A is another schematic diagram of a frame structure of an enhanced subframe group according to an embodiment of the present invention
  • FIG. 10B is another schematic diagram of a frame structure of an enhanced subframe group according to an embodiment of the present invention
  • FIG. 11B is a schematic diagram of an occupation pattern after enhancing a synchronization channel according to an embodiment of the present invention
  • FIG. 12A is a schematic diagram of a frequency domain resource pattern occupied by a normal PBCH according to an embodiment of the present invention
  • FIG. 12B is a schematic diagram of a time domain resource pattern occupied by an enhanced PBCH according to an embodiment of the present invention
  • FIG. 13 is another schematic diagram of a frame structure of an enhanced subframe cluster according to an embodiment of the present invention. Another schematic diagram of the provided frame structure of the enhanced subframe cluster;
  • FIG. 14B is another schematic diagram of a frame structure of an enhanced subframe cluster according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram of different path loss UEs corresponding to different types of enhanced subframe clusters according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention; the method includes: Step 101: Determine a resource required to send an enhanced subframe cluster;
  • the network device determines a resource required to enhance the subframe cluster, where the resource required for the enhanced subframe cluster may be a position where the enhanced subframe cluster appears in time and frequency, or may be a transmission enhancement.
  • the transmit power of the subframe cluster or both location and transmit power.
  • the manner of determining the required resources for transmitting the enhanced subframe cluster may include multiple manners: One determining manner is: determining, by using a predefined manner, required resources for transmitting the enhanced subframe cluster, for example, the base station And the user equipment can predetermine the required resources for transmitting the enhanced subframe cluster. That is, the dual-issue default method of transmitting the required resources of the enhanced subframe.
  • Another determination manner is: the base station itself determines the resources required to configure the enhanced subframe cluster, and determines the indication information of the required resources for transmitting the enhanced subframe cluster in a static manner, a semi-static manner, or a dynamic manner.
  • the specific manner may be: notifying the UE of the indication information of the resources required for the enhanced subframe cluster by using a method of controlling the RRC common signaling, the RRC dedicated signaling, or the control channel by using a radio resource, but is not limited thereto. .
  • Other modes of use may also be included, and the embodiment is not limited.
  • a further determining manner is: determining, according to the acquired UE information, a resource and an enhanced subframe cluster type required for transmitting the enhanced subframe cluster, and adopting RRC common signaling, RRC dedicated signaling, or a control channel, etc. the way Notifying the UE of the indication information of the resources required for the enhanced subframe cluster.
  • the acquiring the UE information for the UE to determine the resource required for transmitting the enhanced subframe cluster and the enhanced subframe cluster type specifically include: the base station first receives the channel quality measurement information sent by the UE; and the channel quality measurement information.
  • the path loss information, the reference signal received signal power RSRP information, and/or the channel quality indication CQI information is not limited to this information, and may include other information, which is not limited in this embodiment;
  • the measurement information is used by the UE to determine the indication information of the corresponding enhanced subframe cluster type and the indication information of the required resource for transmitting the enhanced subframe cluster; afterwards, the indication information of the enhanced subframe cluster type and the transmission enhanced subframe may be
  • the indication information of the required resources of the cluster is sent to the UE.
  • the UEs are classified according to the channel quality (e.g., according to different path loss) according to the required resources for transmitting the enhanced subframe cluster, and the UEs of different channel qualities select different enhanced subframe cluster types. Different channel enhancement schemes (such as corresponding different transmission times) are used in different types of enhanced subframes.
  • Step 102 Enhance, in sequence, the synchronization channel carrying the synchronization information and the channel carrying the system information in the enhanced subframe cluster on the resource;
  • the step of enhancing the channel carrying the system information may include: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, and a bearer SIB-1 message.
  • the physical downlink shared channel PDSCH, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced.
  • the base station may perform the synchronization channel SCH and the physical broadcast channel in the enhanced subframe cluster on the resource.
  • the PBCH, the physical downlink control channel PDCCH, and the physical downlink shared channel PDSCH are sequentially enhanced.
  • the present invention is not limited to the above-mentioned channels, and other information may be included in the adaptability, which is not limited in this embodiment.
  • the step of enhancing the channel carrying the system information may include: enhancing the physical downlink channel carrying the system information; where the system information includes at least one of the MIB messages and at least one of the SIB-1 messages. At least one of information and SIB-2 messages.
  • the system information includes at least one of the MIB messages and at least one of the SIB-1 messages.
  • At least one of information and SIB-2 messages may be included, which is not limited in this embodiment.
  • the enhancement may be performed in sequence according to the downlink channel required for establishing the connection, that is, the structure of the enhanced subframe cluster frame may include a downlink enhanced channel, which is not limited in this embodiment.
  • the enhanced subframe cluster all the channels required for establishing a connection are enhanced, and the UE requiring coverage enhancement can smoothly complete the process of establishing a connection in the enhanced subframe cluster to reduce the need for coverage enhancement.
  • UE access time
  • Step 103 In the enhanced subframe group, sequentially send to the user equipment UE on the enhanced synchronization channel. Synchronization information, transmitting system information on an enhanced channel carrying system information.
  • the step is performed according to the step 102.
  • the synchronization information is sequentially transmitted to the user equipment UE on the enhanced synchronization channel SCH, the MIB message is transmitted on the enhanced PBCH, and the control of scheduling the SIB-1 is transmitted on the enhanced PDCCH.
  • the SIB-1 message is transmitted on the enhanced PDSCH, the control information of the scheduling SIB-2 is transmitted on the enhanced PDCCH, and the SIB-2 message is transmitted on the enhanced PDSCH.
  • the network device sends the synchronization information and the system information through the enhanced corresponding channel in the enhanced subframe group, where the system information may include: MIB, SIB-1, and SIB-2 messages, but Not limited to this.
  • system message is sent on an enhanced physical downlink channel, where the system information includes at least one of MIB messages, at least one of SIB-1 messages, and SIB-2. At least one of the messages.
  • all the downlink channels required for establishing a connection in the enhanced subframe cluster are sequentially enhanced on the resource, so that coverage enhancement is required.
  • the UE can successfully complete the establishment of the connection within the enhanced subframe cluster, thereby reducing the access time of the UE that needs to cover the enhanced.
  • all downlink channels required for establishing a connection are enhanced only in the enhanced subframe cluster, and non-enhanced channels are still used on other subframes except the enhanced subframe cluster, and the reduction is not performed.
  • the impact of enhanced UEs ie legacy UEs) needs to be covered.
  • FIG. 2 is another flowchart of a data transmission method according to an embodiment of the present invention.
  • the method is different from the foregoing embodiment in FIG. 1 in that the enhanced subframe cluster in this embodiment is used.
  • the downlink channel and the uplink channel, which are required to establish a connection, and the downlink channel and the uplink channel of the enhanced subframe cluster are sequentially enhanced according to a time sequence in which the connection is established, where the method includes:
  • Step 201 Determine a resource required to send an enhanced subframe cluster
  • the manner of determining the resources required to transmit the enhanced subframe cluster, and the manner of transmitting the resources required to enhance the subframe cluster are exactly the same as the determining and transmitting manner of the embodiment described above in FIG. See above, no longer repeat them here.
  • Step 202 On the resource, the synchronization channel SCH carrying the synchronization information in the enhanced subframe cluster, the channel carrying the system information, the PRACH corresponding to the bearer sequence code Preamble, the PDCCH corresponding to the bearer random access response RAR, and the bearer
  • the PDSCH corresponding to the RAR, the PUSCH corresponding to the bearer layer 2/layer 3 message, the PDCCH corresponding to the bearer contention resolution message, and the PDSCH corresponding to the bearer contention resolution message are sequentially enhanced; wherein, in this step, a channel for carrying system information
  • the enhancement may include: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink control channel PDCCH carrying a system information block SIB-1 message, a physical downlink shared channel PDSCH carrying an SIB-1 message, and a bearer SIB-2 message
  • the physical downlink control channel PDCCH and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced.
  • the downlink channel and the uplink channel required for establishing the connection may be sequentially enhanced. That is, the structure of the enhanced subframe cluster frame may include the downlink enhanced channel and the uplink channel, which is not limited in this embodiment.
  • the enhancement of the channel carrying the system information may include: enhancing the physical downlink channel carrying the system information; where the system information includes at least one of the MIB messages and at least one of the SIB-1 messages. At least one of information and SIB-2 messages. But it is not limited to this.
  • Step 203 In the enhanced subframe cluster, sequentially send synchronization information on the enhanced SCH, and send system information on the channel of the enhanced bearer system information, and the preamble sequence code information received on the enhanced PRACH is enhanced.
  • the control information of the scheduled random access response RAR message is sent on the PDCCH
  • the RAR message is sent on the enhanced PDSCH
  • the layer 2/layer 3 message is received on the enhanced PUSCH
  • the control information of the scheduling contention resolution message is sent on the enhanced PDCCH.
  • a contention resolution message is sent on the enhanced PDSCH.
  • sending the system information on the enhanced channel information of the bearer system may include: sending the MIB message on the enhanced PBCH in sequence; and transmitting the control information of scheduling the SIB-1 on the enhanced PDCCH,
  • the SIB-1 message is transmitted on the enhanced PDSCH
  • the control information of the scheduling SIB-2 is transmitted on the enhanced PDCCH
  • the SIB-2 message is transmitted on the enhanced PDSCH.
  • the enhanced subframe frame structure may be enhanced in sequence according to the downlink and uplink channels required for establishing a connection, and the structure of the enhanced subframe cluster frame may include an uplink enhanced channel and a downlink enhanced channel.
  • transmitting the system message on the enhanced channel may include: transmitting the system message on the enhanced physical downlink channel; wherein the system information includes at least one of the MIB message, and the SIB-1 message At least one of information and at least one of SIB-2 messages.
  • all the channels required for establishing a connection are sequentially enhanced in the enhanced subframe cluster. And sequentially transmitting the synchronization signal and the system information on the enhanced channel of the resource, receiving the preamble sequence code information, transmitting the RAR message, receiving the layer 2/layer 3 message, and sending the contention resolution message, so that the UE requiring coverage enhancement is received.
  • the random access procedure is initiated, and the uplink connection process can be successfully completed in the enhanced subframe cluster, and the access time of the UE that needs to cover the enhanced UE is reduced.
  • the UE requiring coverage enhancement only enhances all channels in the enhanced subframe cluster, the non-enhanced channel is still used on other subframes except the enhanced subframe cluster, and the impact on the legacy UE is reduced.
  • FIG. 3 is a flowchart of an access method according to an embodiment of the present invention.
  • the method includes: Step 301: Determine a required resource of an enhanced subframe cluster.
  • the resources required by the UE to enhance the subframe cluster may include: enhancing the position of the subframe cluster in time and frequency, and/or enhancing the transmission power of the subframe cluster.
  • the present invention is not limited thereto, and other parameters may be included according to specific conditions, and the embodiment is not limited.
  • the method for the UE to determine the required resources for transmitting the enhanced subframe cluster is exemplified by the following two methods, but is not limited thereto:
  • One way to determine is to determine the required resources for transmitting the enhanced subframe cluster in a predefined manner; for example, the base station and the user equipment can predefine a required resource for transmitting the enhanced subframe cluster. That is, the dual-issue method of transmitting the required resources of the enhanced subframe cluster by default.
  • Another determining manner is that the indication information of the required resources of the enhanced subframe cluster is received by means of RRC common signaling, RRC dedicated signaling, control channel, and the like.
  • the required resources of the enhanced subframe cluster are indicated by means of RRC common signaling, RRC dedicated signaling, control channel, and the like.
  • the manner of information is notified to the UE, so that after receiving the indication information of the required resources of the enhanced subframe cluster, the resources required for enhancing the subframe cluster are determined according to the indication information.
  • Step 302 In the enhanced subframe group, the receiving network device sequentially sends synchronization information sent on the enhanced synchronization channel, and system information sent on the enhanced channel information of the bearer system.
  • the enhanced system information transmitted on the channel carrying the system information is: receiving, in the enhanced subframe cluster, the MIB message sent by the network device on the enhanced PBCH, and the scheduling SIB-1 sent on the enhanced PDCCH.
  • system information that is sent by the network device on the enhanced bearer system information channel includes: receiving system information sent by the network device on the enhanced physical downlink channel, where the system information includes: MIB At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages.
  • Step 303 Obtain time synchronization with the base station according to the received synchronization information, and decode the system information to obtain corresponding information.
  • the user equipment detects the synchronization signal PSS/SSS sent by the network device on the enhanced SCH, obtains time synchronization with the base station, and sends the network measurement device to send on the enhanced PBCH.
  • the MIB message is obtained after decoding, and the control information of the scheduling SIB-1 sent by the network side device on the enhanced PDCCH is received, and the location information of the resource occupied by the SIB-1 is obtained after decoding, and the receiving network side device is enhanced.
  • the SIB-1 message sent by the PDSCH is decoded to obtain the SIB-1 message, and the control information of the scheduling SIB-2 sent by the network side device on the enhanced PDCCH is received, and the position information of the resource occupied by the SIB-2 is obtained after decoding.
  • the SIB-2 message sent by the network side device on the enhanced PDSCH is received, and the SIB-2 message is obtained after decoding.
  • a user equipment that decodes the received system information to obtain corresponding system information may include: sequentially decoding the received MIB message to obtain MIB information;
  • the control information of the scheduling SIB-1 is decoded, the location information of the resource occupied by the SIB-1 is obtained, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received information is received.
  • the control information of the SIB-2 is scheduled to be decoded, the location information of the resources occupied by the SIB-2 is obtained, and the received SIB-2 message is decoded to obtain an SIB-2 message.
  • the user equipment decodes the received system information to obtain corresponding information, where the system information includes: at least one of the MIB messages, at least one of the SIB-1 messages, and the SIB. At least one of the -2 messages.
  • the UE after the UE that needs to be enhanced by the coverage needs to determine the resources required for transmitting the enhanced subframe cluster, the UE periodically receives the synchronization signal and the system information on the enhanced channel of the resource, and can successfully complete the enhanced subframe cluster.
  • a connection is established to reduce the access time of the UE that needs to cover the enhancement.
  • all channels required for establishing a connection are enhanced only in the enhanced subframe cluster, and non-enhanced channels are still used on other subframes except the enhanced subframe cluster, Covers the impact of enhanced UEs (ie legacy UEs).
  • the method may further include:
  • the UE sends the channel quality measurement information to the network measurement device; the channel quality measurement information includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information; and the UE receives the enhancement sent by the network device. Indication information of the required resources of the subframe cluster and/or enhanced subframe cluster class Type indication information.
  • the UE after the network device receives the measurement information of the channel quality, the UE performs classification according to UEs with different path loss.
  • FIG. 4 is another flow of an access method according to an embodiment of the present invention.
  • the method is different from the foregoing embodiment of FIG. 3 in that the enhanced subframe cluster includes establishing in this embodiment.
  • the downlink channel and the uplink channel of the enhanced subframe group are sequentially enhanced according to the time sequence in which the connection is established, and the method includes:
  • Step 401 Determine a required resource for enhancing the subframe cluster
  • the manner of determining the resources required to transmit the enhanced subframe cluster, and the manner of transmitting the resources required to enhance the subframe cluster are exactly the same as the determining and transmitting manner of the embodiment described above in FIG. See above, no longer repeat them here.
  • Step 402 In the enhanced subframe group, sequentially receive synchronization information sent by the network device on the enhanced SCH, system information sent on the channel of the enhanced bearer system information, and send the sequence to the network device on the enhanced PRACH.
  • the code preamble, the control information of the scheduled random access response RAR message sent by the network device on the enhanced PDCCH, the RAR message sent by the network device on the enhanced PDSCH, and the layer 2/layer sent by the network device on the enhanced PUSCH 3, receiving control information of the scheduling contention resolution message sent by the network device on the enhanced PDCCH, and receiving a contention resolution message sent by the network device on the enhanced PDSCH;
  • the system information that is sent by the user equipment on the channel of the enhanced bearer system information may include: sequentially receiving the MIB message sent by the network device on the enhanced PBCH, and scheduling the SIB sent on the enhanced PDCCH.
  • the user equipment sequentially receives the synchronization signal PSS/SSS transmitted by the network device on the enhanced SCH, the MIB message sent on the enhanced PBCH, and the scheduling sent on the enhanced PDCCH.
  • the sequence code preamble is sent on the PRACH, and the control information of the scheduled random access response RAR message sent by the network device on the enhanced PDCCH is received, and the RAR message sent by the network device on the enhanced PDSCH is received, and sent to the network device on the enhanced PUSCH.
  • Layer 2/layer 3 message, receiving control information of a scheduling contention resolution message sent by the network device on the enhanced PDCCH, and the receiving network device is enhanced The contention resolution message sent on the PDSCH.
  • the other user equipment receives the system information that is sent by the network device on the enhanced channel information of the bearer system, and includes: receiving, in sequence, at least one of the MIB messages sent by the network device on the enhanced physical downlink channel, SIB-1 At least one of the information and at least one of the SIB-2 messages.
  • Step 403 Obtain time synchronization with the base station according to the received synchronization information, and decode the received system information to obtain corresponding information. Perform control information on the received RAR message. Decoding, obtaining location information of resources occupied by the RAR message; decoding the received RAR message to obtain RAR information; and obtaining control information of the scheduling contention resolution message, obtaining resources of the contention resolution message Location information; decoding the received contention resolution message to obtain contention resolution information.
  • the user equipment detects the synchronization signal PSS/SSS sent by the network device on the enhanced SCH, obtains time synchronization with the base station, and sends the network measurement device to send on the enhanced PBCH.
  • the MIB message is obtained after decoding, and the control information of the scheduling SIB-1 sent by the network side device on the enhanced PDCCH is received, and the location information of the resource occupied by the SIB-1 is obtained after decoding, and the receiving network side device is enhanced.
  • the SIB-1 message sent by the PDSCH is decoded to obtain the SIB-1 message, and the control information of the scheduling SIB-2 sent by the network side device on the enhanced PDCCH is received, and the position information of the resource occupied by the SIB-2 is obtained after decoding.
  • the SIB-2 message sent by the network side device on the enhanced PDSCH is received, and the SIB-2 message is obtained after decoding.
  • the control information of the message is solved, and the location information of the resource occupied by the contention resolution message is obtained after being decoded, and the contention resolution message sent by the network side device on the enhanced PDSCH is received, and the contention resolution message is obtained after decoding.
  • the decoding the received system information to obtain the corresponding information specifically: sequentially decoding the received MIB message to obtain MIB information; Decoding the control information of the SIB-1 to obtain the location information of the resource occupied by the SIB-1, decoding the received SIB-1 message, obtaining the SIB-1 information, and receiving the received scheduling
  • the control information of the SIB-2 is decoded, and the location information of the resources occupied by the SIB-2 is obtained, and the received SIB-2 message is decoded to obtain an SIB-2 message.
  • the user equipment After the user equipment receives the corresponding information in the corresponding channel in the enhanced subframe group, The time synchronization with the base station is obtained, and then the correspondingly received information is correspondingly decoded.
  • the received system information is decoded to obtain corresponding information, where the information includes: at least one of the MIB message, at least one of the SIB-1 messages, and the SIB-2 message. At least one of the information.
  • the enhanced subframe frame structure may be enhanced in sequence according to the channel required for establishing a connection, and the structure of the enhanced subframe cluster frame may include a downlink enhanced channel and an uplink enhanced channel.
  • the enhanced subframe cluster all the channels required for establishing a connection are sequentially enhanced, and the synchronization signal and system information are sequentially received on the enhanced channel of the resource, and the preamble sequence code information is sent, and the receiving is performed.
  • the RAR message, the layer 2/layer 3 message is sent, and the contention resolution message is received, so that the UE that needs coverage enhancement can successfully complete the uplink connection process in the enhanced subframe cluster, and reduces the access time of the UE that needs to cover the enhanced UE. .
  • the embodiment of the present invention provides a data transmission apparatus, and a schematic structural diagram thereof is shown in FIG. 5.
  • the apparatus includes: a determining unit 51, an enhancement unit 52, and a sending unit 53, wherein the determining unit And determining, by the determining unit 51, resources required for enhancing the subframe cluster, specifically, including enhancing a position of the subframe cluster in time and frequency; and/or, enhancing The transmission unit of the sub-frame cluster; the enhancement unit 52 is configured to sequentially enhance, on the resource, the synchronization channel SCH carrying the synchronization information and the channel carrying the system information in the enhanced subframe cluster;
  • the sending unit 53 is configured to send, in the enhanced subframe group, synchronization information to the user equipment UE on the enhanced SCH, and send the system information on the channel of the enhanced bearer system information.
  • the enhancement unit enhances, on the resource, the channel that carries the system information in the enhanced subframe group, and may include: a physical broadcast channel PBCH carrying the primary information block MIB message, and a bearer system information block SIB-1
  • PBCH physical broadcast channel carrying the primary information block MIB message
  • SIB-1 bearer system information block
  • the physical downlink control channel PDCCH of the message, the physical downlink shared channel PDSCH carrying the SIB-1 message, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced; Limited to this channel, other channels may also be included.
  • the sending unit sends the system message on the enhanced channel, which may include: sending a primary MIB message on the enhanced PBCH, transmitting control information for scheduling the SIB-1 on the enhanced PDCCH, and transmitting the SIB on the enhanced PDSCH.
  • 1 message transmitting control information for scheduling SIB-2 on the enhanced PDCCH, in enhancing The SIB-2 message is transmitted on the PDSCH; but is not limited to this channel, and other channels may also be included.
  • the enhancement unit is configured to enhance the channel that carries the system information, and includes: used to enhance the physical downlink channel that carries the system information; where the system information includes at least one of the MIB messages, the SIB-1 At least one of the information and at least one of the SIB-2 messages;
  • the sending unit is configured to send the system message on the enhanced channel, including: sending the system message on the enhanced physical downlink channel.
  • the determining unit includes: a first determining unit, a second determining unit, and/or a third determining unit, where the first determining unit is configured to determine, by using a predefined manner, a location for sending an enhanced subframe cluster
  • the second determining unit is configured to determine, by using a static mode, a semi-static mode, or a dynamic mode, a required resource for sending an enhanced subframe cluster, where the sending manner is specifically: controlling RRC common signaling by using a radio resource
  • the third determining unit is configured to determine, according to the acquired UE information, the sending enhancer for the UE, according to the manner of the RRC dedicated signaling or the control channel, the indication information of the resource required for the enhanced subframe group is sent to the UE.
  • the resource required for the frame cluster and the enhanced subframe cluster type are specifically sent to notify the indication information of the resources required by the enhanced subframe cluster by means of RRC common signaling, RRC dedicated signaling, or control channel. Give the UE.
  • the third determining unit includes: a receiving unit and an indication information determining unit, where the receiving unit is configured to receive channel quality information sent by the UE; the channel quality information is path loss path loss information, and reference signal receiving The signal power RSRP information and/or the channel quality indicator CQI information; the indication information determining unit, configured to determine, according to the channel quality information, the indication information of the corresponding enhanced subframe cluster type and the transmit enhanced subframe cluster Instructions for the required resources.
  • the embodiment of the present invention further provides a data transmission device, and a schematic structural diagram thereof is shown in FIG. 6.
  • the device includes: a determining unit 61, an enhancement unit 62, and a transceiver unit 63, where
  • the determining unit 61 is configured to determine a resource required for sending the enhanced subframe cluster, where the determining unit determines a resource required for the enhanced subframe cluster, and specifically includes: a position where the enhanced subframe cluster appears in time and frequency; And / or, enhance the transmit power of the subframe cluster.
  • the enhancement unit 62 is configured to: on the resource, the synchronization channel SCH carrying the synchronization information in the enhanced subframe cluster, the channel carrying the system information, the PRACH corresponding to the bearer sequence code Preamble, and the bearer random access response RAR
  • the transceiver unit 63 is configured to: in the enhanced subframe group, sequentially send synchronization information on the enhanced SCH, send system information on the enhanced channel information of the bearer system information, and receive a preamble sequence on the enhanced PRACH.
  • the code information, the control information of the scheduled random access response RAR message is sent on the enhanced PDCCH, the RAR message is sent on the enhanced PDSCH, the layer 2/layer 3 message is received on the enhanced PUSCH, and the scheduling competition is solved on the enhanced PDCCH.
  • the control information of the message, the contention resolution message is sent on the enhanced PDSCH.
  • the enhancement unit is configured to sequentially enhance the channel of the bearer system information, including: a physical broadcast channel PBCH carrying a primary information block MIB message, a physical downlink shared channel PDSCH carrying a system information block SIB-1 message, and a bearer SIB
  • the physical downlink control channel PDCCH of the -2 message and the physical downlink shared channel (PDSCH) carrying the SIB-2 message are sequentially enhanced; correspondingly, the sending unit is configured to sequentially send system information on the channel of the enhanced bearer system information,
  • the method includes: transmitting an MIB message on the enhanced PBCH, transmitting control information for scheduling SIB-1 on the enhanced PDCCH, transmitting an SIB-1 message on the enhanced PDSCH, and transmitting control information for scheduling the SIB-2 on the enhanced PDCCH, where The SIB-2 message is sent on the enhanced PDSCH.
  • the enhancement unit is configured to enhance the channel that carries the system information, and includes: used to enhance the physical downlink channel that carries the system information; where the system information includes: at least one type of information in the MIB message, SIB- At least one of the information and the at least one of the SIB-2 messages; the transmitting unit, configured to send the system message on the enhanced channel, comprising: transmitting the system message on the enhanced physical downlink channel.
  • the determining unit includes: a first determining unit and/or a second determining unit and/or a third determining unit, where the first determining unit is configured to determine, by using a predefined manner, that the enhanced subframe cluster is sent.
  • the second determining unit is configured to determine, by using a static mode, a semi-static mode, or a dynamic manner, the required resources for sending the enhanced subframe cluster; and the manner in which the second determining unit sends the resource is specifically And the method of the RRC common signaling, the RRC dedicated signaling, or the control channel is used to notify the UE of the indication information of the resource required for the enhanced subframe cluster; the third determining unit is configured to use the acquired UE information.
  • the manner of controlling the channel notifies the UE of the indication information of the resources required for the enhanced subframe cluster.
  • the third determining unit includes: a receiving unit and an indication information determining unit, where the receiving unit is configured to receive channel quality information sent by the UE; the channel quality information is path loss path loss information, reference The signal receiving signal power RSRP information and/or the channel quality indicating CQI information; the indication information determining unit, configured to determine, according to the channel quality information, the indication information of the corresponding enhanced subframe cluster type and the sending enhanced subframe according to the channel quality information An indication of the required resources of the cluster.
  • an access device is provided by the embodiment of the present invention, where the device includes: a determining unit, a receiving unit, and an access unit, where the determining unit is configured to determine a required resource of the enhanced subframe cluster;
  • the determining, by the determining unit, the required resources of the enhanced subframe cluster specifically includes: increasing the position of the subframe cluster in time and frequency, and/or enhancing the transmission power of the subframe cluster.
  • the receiving unit is configured to receive, in the enhanced subframe group, a synchronization signal that is sent by the network device in sequence on the enhanced synchronization channel SCH, and system information that is sent on the enhanced channel that carries the system information;
  • the access unit is configured to obtain time synchronization with the base station according to the synchronization information, and decode the system information to obtain corresponding information.
  • the receiving unit is configured to receive system information sent on the channel of the enhanced bearer system information, including: receiving, in sequence, a MIB message sent by the network device on the enhanced PBCH, and controlling the scheduling SIB-1 sent on the enhanced PDCCH Information, SIB-1 message transmitted on the enhanced PDSCH, control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, SIB-2 message transmitted on the enhanced PDSCH; the access unit is configured to The system information is decoded to obtain corresponding information, including: decoding the received MIB message in sequence to obtain MIB information; and decoding the received control information of the scheduling SIB-1 to obtain SIB- Position information of the occupied resource, decoding the received SIB-1 message, obtaining SIB-1 information, decoding the received control information of the scheduled SIB-2, and obtaining the SIB-2
  • the location information of the resource is used to decode the received SIB-2 message to obtain an SIB-2 message.
  • the receiving unit is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving system information that is sent by the network device on the enhanced physical downlink channel, where the system information includes: At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages; the access unit is configured to decode the received system information to obtain a corresponding
  • the information includes: decoding at least one of the received MIB messages to obtain MIB information, and docking At least one of the received SIB-1 messages is decoded to obtain SIB-1 information; and at least one of the received SIB-2 messages is decoded to obtain SIB-2 information.
  • the determining unit includes: a first determining unit and/or a second determining unit, where the first determining unit is configured to determine, by using a predefined manner, a required resource for sending the enhanced subframe cluster;
  • the second determining unit is configured to receive, by using RRC common signaling, RRC dedicated signaling, a control channel, and the like, indication information of the required resources of the enhanced subframe cluster.
  • the apparatus may further include: a first sending unit and a second receiving unit, where the first sending unit is configured to determine, in the determining unit, an enhanced subframe cluster Before the required resources, the channel quality information is sent to the network measurement device; the channel quality information includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information; And a unit, configured to receive indication information of the required resources of the enhanced subframe cluster sent by the network device, and/or enhanced subframe cluster type indication information.
  • the embodiment of the present invention further provides an access device, where the device includes: a determining unit, a transceiver unit, and an access unit, where
  • the determining unit is configured to determine a required resource of the enhanced subframe cluster, where the determining, by the determining unit, the required resource of the enhanced subframe cluster specifically includes: enhancing a position of the subframe cluster in time and frequency, where And/or, enhance the transmit power of the subframe cluster.
  • the determining unit includes: a first determining unit and/or a second determining unit, where the first determining unit is configured to determine, by using a predefined manner, a required resource for sending an enhanced subframe cluster; the second determining And a unit, configured to receive, by using RRC common signaling, RRC dedicated signaling, a control channel, or the like, indication information of the required resources of the enhanced subframe cluster.
  • the transceiver unit is configured to sequentially receive, in the enhanced subframe cluster, synchronization information sent by the network device on the enhanced SCH, and send the system information on the enhanced channel that carries the system information to the network device.
  • the sequence code preamble is transmitted on the PRACH, and the control information of the scheduled random access response RAR message sent by the network device on the enhanced PDCCH is received, and the RAR message sent by the network device on the enhanced PDSCH is received, and the layer is sent to the network device on the enhanced PUSCH.
  • a Layer 2 message receiving control information of a scheduling contention resolution message sent by the network device on the enhanced PDCCH, and receiving a contention resolution message sent by the network device on the enhanced PDSCH;
  • the access unit is configured to obtain time synchronization with the base station according to the received synchronization information, and decode the received system information to obtain corresponding information; and receive the RAR.
  • Eliminate The control information of the information is decoded to obtain the location information of the resource occupied by the RAR message; the received RAR message is decoded to obtain the RAR information; and the control information of the received scheduling contention resolution message is obtained, and the competition is obtained. Resolving location information of the resource occupied by the message; decoding the received contention resolution message to obtain contention resolution information.
  • the system information that is sent by the transceiver unit on the enhanced channel carrying the system information includes: an MIB message sent on the enhanced PBCH; the control information of the scheduling SIB-1 sent on the enhanced PDCCH, in the enhanced The SIB-1 message sent by the PDSCH, the control information of the scheduling SIB-2 transmitted on the enhanced PDCCH, and the SIB-2 message sent on the enhanced PDSCH; the access unit is configured to receive the received system information Decoding, obtaining corresponding information, comprising: decoding the received MIB message in sequence to obtain MIB information; decoding the received control information of the scheduling SIB-1, and obtaining the SIB-1
  • the location information of the resource is used to decode the received SIB-1 message, obtain the SIB-1 information, and decode the received control information of the scheduled SIB-2 to obtain the resource occupied by the SIB-2.
  • the receiving unit is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving system information that is sent by the network device on the enhanced physical downlink channel, where the system information includes: At least one of the information, at least one of the SIB-1 messages, and at least one of the SIB-2 messages; the access unit is configured to decode the received system information to obtain a corresponding information.
  • the apparatus may further include: a first sending unit and a second receiving unit, where the first sending unit is configured to: before the determining unit determines the required resources of the enhanced subframe cluster,
  • the network measurement device sends the channel quality information.
  • the channel quality information includes: path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indicator CQI information.
  • the second receiving unit is configured to receive the network device to send.
  • the embodiment of the present invention provides a network device, and a schematic structural diagram thereof is shown in FIG. 7.
  • the network device 7 includes: a processor 71 and a wireless transceiver 72, where the processor 71 is configured to determine sending Reinforcing a resource required for the subframe group; performing, on the resource, a synchronization channel carrying the synchronization information and a channel carrying the system information in the enhanced subframe cluster; the wireless transceiver 72, configured to In the enhanced subframe group, the synchronization information is sequentially transmitted to the user equipment UE on the enhanced synchronization channel, and the enhanced bearer system information is transmitted. Send system information on the road.
  • the processor is configured to enhance a channel that carries system information, including: a physical downlink of a physical broadcast channel PBCH carrying a primary information block MIB message, and a bearer system information block SIB-1 message.
  • the control channel PDCCH, the physical downlink shared channel PDSCH carrying the SIB-1 message, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced;
  • the wireless transceiver is used in Transmitting the system message on the enhanced channel, including: transmitting the MIB message on the enhanced PBCH, transmitting the control information of the scheduling SIB-1 on the enhanced PDCCH, transmitting the SIB-1 message on the enhanced PDSCH, and transmitting the scheduling on the enhanced PDCCH
  • the control information of SIB-2 transmits an SIB-2 message on the enhanced PDSCH.
  • the processor is configured to enhance the channel that carries the system information, and includes: enhancing, on the physical downlink channel that carries the system information, where the system information includes at least one of the information in the MIB message. At least one of the SIB-1 message and the at least one of the SI B-2 messages; the wireless transceiver is configured to send the system message on the enhanced channel, including: transmitting on the enhanced physical downlink channel System message.
  • the processor is configured to determine a resource enhancement required to send the enhanced subframe cluster, including: enhancing a location of the subframe cluster in time and frequency, and/or enhancing a transmission power of the subframe cluster.
  • the processor determines, according to the manner, the resource enhancement required to send the enhanced subframe cluster: determining, by using a predefined manner, a required resource for sending the enhanced subframe cluster; or by static mode, semi-static mode, dynamic
  • the method determines a resource required for sending the enhanced subframe cluster; or determines, according to the acquired UE information, a resource and an enhanced subframe cluster type required for transmitting the enhanced subframe cluster.
  • the determining, by the static mode, the semi-static mode, and the dynamic scheduling, the resources required for sending the enhanced subframe cluster by using the RRC common signaling, the RRC dedicated signaling, or the control channel by using the radio resource to control the RRC common signaling, the RRC dedicated signaling, or the control channel The indication information of the resources required to enhance the subframe cluster is notified to the UE; or the sending manner of the resource required for the UE to send the enhanced subframe cluster according to the acquired UE information is specifically: And the method for notifying the function and the function of the processor and the wireless transceiver to indicate the resource required for the enhanced subframe cluster to the corresponding step in the foregoing method. The implementation process will not be repeated here.
  • the embodiment of the present invention further provides a network device, where the network device includes: a processor and a wireless transceiver, where the processor is configured to determine a resource required for sending an enhanced subframe cluster; Resources The synchronization channel SCH carrying the synchronization information, the channel carrying the system information, the PRACH corresponding to the bearer sequence code Preamble, the PDCCH corresponding to the random access response RAR, the PDSCH corresponding to the RAR, and the bearer layer 2 in the enhanced subframe group The PUSCH corresponding to the layer 3 message, the PDCCH corresponding to the bearer contention resolution message, and the PDSCH corresponding to the bearer contention resolution message are sequentially enhanced; the wireless transceiver is configured to be in the enhanced subframe group, and sequentially on the enhanced SCH.
  • the network device includes: a processor and a wireless transceiver, where the processor is configured to determine a resource required for sending an enhanced subframe cluster; Resources The synchronization channel SCH carrying the synchronization information, the channel carrying the system information
  • Sending synchronization information transmitting system information on the channel carrying the enhanced bearer system information, preamble sequence code information received on the enhanced PRACH, and transmitting control information for scheduling the random access response RAR message on the enhanced PDCCH, in enhanced
  • the PDSCH transmits a RAR message, receives a layer 2/layer 3 message on the enhanced PUSCH, transmits control information for scheduling a contention resolution message on the enhanced PDCCH, and transmits a contention resolution message on the enhanced PDSCH.
  • the processor is configured to enhance a channel that carries system information, including: a physical downlink channel PBCH carrying a primary information block MIB message, and a physical downlink control channel carrying a system information block SIB-1 message.
  • the PDCCH, the physical downlink shared channel PDSCH carrying the SIB-1 message, the physical downlink control channel PDCCH carrying the SIB-2 message, and the physical downlink shared channel PDSCH carrying the SIB-2 message are sequentially enhanced; the wireless transceiver is used for enhancement And transmitting the system message on the channel, including: sending the MIB message on the enhanced PBCH, transmitting the control information of the scheduling SIB-1 on the enhanced PDCCH, transmitting the SIB-1 message on the enhanced PDSCH, and sending the scheduling SIB on the enhanced PDCCH. Control information of 2, transmitting an SIB-2 message on the enhanced PDSCH.
  • the processor is configured to enhance the channel that carries the system information, and includes: enhancing, on the physical downlink channel that carries the system information, where the system information includes at least one of the information in the MIB message. At least one of the SIB-1 message and the at least one of the SI B-2 messages; the wireless transceiver is configured to send the system message on the enhanced channel, including: transmitting on the enhanced physical downlink channel System message.
  • the processor is configured to determine resources required to send the enhanced subframe cluster, including: enhancing a position of the subframe cluster in time and frequency, and/or enhancing a transmission power of the subframe cluster.
  • the processor determines, according to the manner, the resources required for sending the enhanced subframe cluster, and determines, by using a predefined manner, the required resources for sending the enhanced subframe cluster, or by using a static mode, a semi-static mode, or a dynamic mode. Determining a resource required for transmitting the enhanced subframe cluster; or determining, for the UE according to the acquired UE information, a resource required for transmitting the enhanced subframe cluster and an enhanced subframe cluster type.
  • the determining, by the static mode, the semi-static mode, and the dynamic scheduling, the resources required for sending the enhanced subframe cluster by using the radio resource the RRC common signaling, the RRC dedicated signaling, or the control channel by using the radio resource.
  • the method for the UE to determine the resource required for the enhanced subframe group according to the channel quality information of the acquiring the UE is specifically: The signaling, RRC-specific signaling, or control channel manners are used to notify the processor and the wireless transceiver of the function and function of the indication information of the resources required for the enhanced subframe cluster. The implementation process of the steps will not be described here.
  • the embodiment of the present invention provides a user equipment, which is shown in FIG. 8.
  • the user equipment includes: a processor 81 and a transceiver 82.
  • the processor 81 is configured to determine an enhanced subframe cluster. The required resource; the transceiver 1002, configured to receive, in the enhanced subframe cluster, synchronization information that the network device sequentially sends on the enhanced synchronization channel, and system information that is sent on the enhanced bearer system information channel.
  • the processor 81 is further configured to obtain time synchronization with the base station according to the received synchronization information, and decode the system information to obtain corresponding information.
  • the transceiver is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving, in sequence, an MIB message sent by the network device on the enhanced PBCH, in the enhanced PDCCH.
  • the processor is configured to decode the received system information to obtain corresponding information, including: sequentially decoding the received MIB message to obtain MIB information; and receiving the scheduled SIB-1
  • the control information is decoded to obtain the location information of the resources occupied by the SIB-1, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received SIB-2 is controlled.
  • the information is decoded, the location information of the resources occupied by the SIB-2 is obtained, and the received SIB-2 message is decoded to obtain an SIB-2 message.
  • the transceiver is configured to receive system information sent by the network device on the enhanced channel information of the bearer system, including: receiving system information sent by the network device on the enhanced physical downlink channel, where the system The information includes: at least one of the MIB message, at least one of the SIB-1 message, and at least one of the SIB-2 message; the processor is configured to decode the received system information , get the corresponding information.
  • the determining, by the processor, the required resources for enhancing the subframe cluster includes: enhancing a position of the subframe cluster in time and frequency, and/or enhancing a transmission power of the subframe cluster.
  • the processor determines the required resources for transmitting the enhanced subframe cluster according to the following manner:
  • the definition manner determines the required resources for transmitting the enhanced subframe cluster; or receives the indication information of the required resources of the enhanced subframe cluster by using RRC common signaling, RRC dedicated signaling, control channel, and the like.
  • the transceiver is configured to: before the determining, by the processor, the required resources of the enhanced subframe cluster, to send the channel quality measurement information to the network measurement device;
  • the channel quality measurement information includes : path loss path loss information, reference signal received signal power RSRP information, and/or channel quality indication CQI information; and indication information of a required resource for receiving an enhanced subframe cluster transmitted by the network device and/or an enhanced subframe cluster type indication information.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a processor and a transceiver; wherein the processor is configured to determine a required resource of the enhanced subframe cluster; the transceiver, And transmitting, in the enhanced subframe group, synchronization information sent by the network device on the enhanced SCH, system information sent on the channel of the enhanced bearer system information, and sending the sequence code to the network device on the enhanced PRACH.
  • the processor is further configured to sequentially perform the synchronization according to the received Information, obtaining time synchronization with the base station; and decoding the received system information, Corresponding information; decoding the received control information of the RAR message to obtain location information of a resource occupied by the RAR message; decoding the received RAR message to obtain RAR information;
  • the control information of the scheduling contention resolution message is obtained, and the location information of the resource occupied by the contention resolution message is obtained; and the received contention resolution message is decoded to obtain the contention resolution information.
  • the transceiver is configured to receive system information that is sent by the network device on the enhanced bearer system information, and includes: receiving, in sequence, an MIB message sent by the network device on the enhanced PBCH, in the enhanced PDCCH.
  • the processor is further configured to decode the received system information, and the corresponding information includes: sequentially decoding the received MIB message to obtain MIB information; and receiving the received scheduling
  • the control information of the SIB-1 is decoded to obtain the location information of the resources occupied by the SIB-1, and the received SIB-1 message is decoded to obtain the SIB-1 information, and the received SIB- 2 control letter
  • the information is decoded, the location information of the resources occupied by the SIB-2 is obtained, and the received SIB-2 message is decoded to obtain an SIB
  • the transceiver is configured to receive system information sent by the network device on the enhanced channel information of the bearer system, including: receiving, in sequence, at least one of the MIB messages sent by the network device on the enhanced physical downlink channel. An information, at least one of the SIB-1 message and at least one of the SIB-2 messages; the processor is configured to decode the received system information to obtain corresponding information.
  • the determining, by the processor, the required resources for enhancing the subframe cluster includes: enhancing a position of the subframe cluster in time and frequency, and/or enhancing a transmission power of the subframe cluster.
  • the processor determines, according to the manner, the required resources for sending the enhanced subframe cluster: determining, by using a predefined manner, a required resource for sending the enhanced subframe cluster; or by using RRC common signaling, RRC proprietary
  • the signaling, control channel manner determines indication information of the required resources for receiving the enhanced subframe cluster.
  • the transceiver is configured to send channel quality information to the network measurement device before the determining, by the processor, the required resources of the enhanced subframe cluster;
  • the channel quality information includes: path loss path loss information, The reference signal received signal power RSRP information and/or channel quality indication CQI information; and indication information of the required resources of the enhanced subframe cluster transmitted by the network device and/or enhanced subframe cluster type indication information.
  • the network device uses an eNB as an example, but is not limited thereto.
  • the eNB configures a corresponding type of enhanced subframe cluster for the UE, and enhances the downlink channel (such as SCH, PBCH, PDCCH, PDSCH, etc.) in the enhanced subframe cluster; the eNB passes the indication information of the required resources of the enhanced subframe cluster through the system.
  • Information such as PBCH or SIB messages
  • RRC signaling informs the UE.
  • the enhanced subframe group only needs to include the downlink enhanced channel, and the PDCCH, PDSCH, PBCH, and SCH channels required for updating the system message are enhanced.
  • FIG. 9 is a schematic structural diagram of an enhanced subframe cluster according to an embodiment of the present invention.
  • the eNB determines the starting position, the period, and the resource position occupied by the frequency domain in the enhanced subframe cluster.
  • the blackened area is an enhanced subframe cluster, and the other areas are normal subframes, and the normal subframes are within the normal subframe. All channels are not enhanced.
  • the sequence of PDCCH and PDSCH required by SIB-2 is used to design the corresponding enhanced channel; or the order of PDSCH required for synchronization, broadcast channel (PBCH), SISCH-1 required PDSCH, SIB-2 in the subframe group is enhanced. To design the corresponding enhanced channel.
  • e B transmits the synchronization signal PSS/SSS on the enhanced SCH, transmits the broadcast information on the enhanced PBCH, and transmits the resource scheduling information SIB-1 and SIB on the enhanced PDCCH and the PDSCH corresponding to the SIB-1 and the SIB-2, respectively. -2.
  • the UE first listens to the PSS/SSS on the enhanced synchronization channel to obtain synchronization with the base station; then, reads the PBCH on the enhanced PBCH, and obtains the bandwidth, the radio frame number, and the PHICH configuration information from the PBCH;
  • FIG. 10A is a schematic diagram of a frame structure of an enhanced subframe cluster according to an embodiment of the present invention.
  • FIG. 10A is another schematic diagram of a frame structure of an enhanced subframe cluster according to an embodiment of the present invention;
  • the scheduling information of the PDSCH is pre-agreed with the scheduling information of the PDSCH where the SIB-1 message is located, and the detection of the SIB-1 message is completed on the enhanced PDSCH.
  • the frame structure of the enhanced subframe cluster is as shown in FIG. 10B.
  • FIG. 10B is the present invention. Another schematic diagram of a frame structure of an enhanced subframe cluster provided by an embodiment;
  • the UE detects the PDCCH including the SIB-2 scheduling information on the enhanced PDCCH, obtains the scheduling information of the SIB-2 message by using the PDCCH in the CSS, and completes the detection of the SIB-2 message on the enhanced PDSCH, and the enhanced subframe thereof
  • the frame structure of the cluster is as shown in FIG. 10A.
  • the scheduling information of the PDSCH in which the PDCCH is not required to be notified, the scheduling information of the PDSCH where the SIB-2 message is located is pre-agreed, and the detection of the SIB-2 message is performed on the enhanced PDSCH.
  • the frame structure of the frame cluster is as shown in Fig. 10B.
  • the e B may notify the UE of the indication information of the start position and the period of the enhanced subframe cluster in the PBCH or the SIB-1 or the SIB-2, and the UE may follow the indication indication indication after receiving the indication information.
  • Location and period detection information may also be detected on the start position and period of the enhanced subframe cluster according to the agreement or negotiation.
  • sequence of the frame structure described in FIG. 10A and FIG. 10B is a synchronization channel enhancement frame, a PBCH enhanced frame, a PDCCH/PDSCH enhanced frame required for transmitting the SIB-1, and a PDCCH/PDSCH enhancement required for transmitting the SIB-2. frame.
  • the enhanced frame time of each module refers to the time that is sent from the eNB to the UE for correct reception.
  • FIG. 11A is a schematic diagram of the pattern occupied by the enhanced synchronization channel in the embodiment of the present invention.
  • the PSS/SSS is repeated on other symbols to extend the time domain resources occupied by the PSS/SSS sequence.
  • FIG. 11B is a pattern occupied by the enhanced synchronization channel in the embodiment of the present invention. schematic diagram. In FIGS.
  • the horizontal axis represents time latitude
  • the horizontal axis represents 14 OFDM symbols in one subframe
  • the vertical axis represents 12 subcarriers in one RB
  • each small box represents a time frequency.
  • the resource unit, the resource location where the black small box is located, is the resource location occupied by the CRS pilot.
  • the time domain resource and/or the frequency domain resource occupied by the PBCH of the transmission main information block MIB message is extended; and/or the transmission power of the physical resource unit RE transmitting the data information through the PBCH is enhanced.
  • the PBCH is transmitted once per radio frame. If the time domain resources occupied by the PBCH are to be extended, they may be extended within the sub-frame or extended between sub-frames.
  • This embodiment takes an intra-subframe extension as an example:
  • 12A is a schematic diagram of a frequency domain resource pattern occupied by a normal PBCH according to an embodiment of the present invention
  • FIG. 12B is a schematic diagram of the time domain resource pattern occupied by the enhanced PBCH in the embodiment of the present invention.
  • the horizontal axis represents time latitude
  • the horizontal axis represents 14 OFDM symbols in one subframe
  • the vertical axis represents 12 subcarriers in one RB
  • each small box represents a time frequency.
  • the resource unit, the resource location where the black small box is located, is the resource location occupied by the CRS pilot.
  • the time-domain resource and/or the frequency domain resource occupied by the PDCCH of the control information of the SIB-1 or SIB-2 is extended; and/or the transmission power of the physical resource unit RE of the PDCCH in which the SIB-1 is transmitted is enhanced.
  • EPDCCH Repeatable enhancement PDCCH
  • e B repeatedly transmits multiple PDCCHs or
  • EPDCCH information after receiving multiple PDCCH or EPDCCH information, the UE performs decoding to achieve enhanced coverage.
  • the time domain resource and/or the frequency domain resource occupied by the PDSCH data of the transmission SIB-1 or SIB-2 is extended; for example: increasing the number of transmissions or spreading data transmitted through the PDSCH, and transmitting data through the PDSCH (referred to as PDSCH) Data) Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing DFT-S-OFDM Modulation, the length of the PDSCH data modulated by the DFT-S-OFDM is increased.
  • e B configures a corresponding type of enhanced subframe cluster for the UE, and enhances all channels (such as SCH, PBCH, PDCCH, PDSCH, PRACH, PUSCH) required for establishing a connection in the enhanced subframe cluster.
  • channels such as SCH, PBCH, PDCCH, PDSCH, PRACH, PUSCH
  • the UE establishes an uplink connection process as an example to describe the frame structure of the enhanced subframe cluster.
  • FIG. 13 is another schematic diagram of the frame structure of the enhanced subframe cluster according to the embodiment of the present invention:
  • the black-coated area is an enhanced subframe cluster, the enhanced subframe cluster periodically appears, and the other areas are normal subframes, and all channels in the normal subframe are not enhanced.
  • the physical randomness required for the PDCCH and PDSCH required for the synchronization channel, the received broadcast channel (PBCH), the PDCCH and the PDSCH required for receiving the SIB-1, the PDCCH and the PDSCH required for the SIB-2, and the random access procedure in the subframe group are enhanced.
  • the access channel (PRACH), the PDCCH and the PDSCH required to receive the random access response (RAR), the PUSCH required to transmit the layer 2/layer 3 message, and the order of the PDCCH and the PDSCH required to receive the contention resolution message are designed to correspond.
  • Enhanced channel or according to the synchronization channel, receiving broadcast channel CPBCH), receiving PDSCH required for SIB-1, PDSCH required for SIB-2, physical random access channel (PRACH) required for random access procedure
  • the PDSCH required to receive the random access response (RAR), the PUSCH required to transmit the layer 2/layer 3 message, and the order of the PDSCH required to receive the contention resolution message are used to design the corresponding enhanced channel. This order is consistent with the UE establishing the connection process, S ⁇ :
  • the UE After the UE is powered on, it listens to the synchronization channel and listens to PSS/SSS (6 central PRBs of the entire frequency band) on the enhanced synchronization channel;
  • the PBCH is read on the enhanced PBCH, and the bandwidth, the radio frame number, and the PHICH configuration information (the six central PRBs of the entire frequency band) are obtained from the PBCH;
  • FIG. 14A is another schematic diagram of a frame structure of an enhanced subframe cluster according to an embodiment of the present invention; or, scheduling information of a PDSCH is not required to be notified by a PDCCH, The scheduling information of the PDSCH in which the SIB-1 message is located, and the detection of the SIB-1 message on the enhanced PDSCH, as shown in FIG. 14B, FIG.
  • 14B is another schematic diagram of the frame structure of the enhanced subframe cluster according to the embodiment of the present invention. Then, the UE detects the SIB-2 scheduling information on the enhanced PDCCH, and obtains the scheduling information of the SIB-2 message by using the PDCCH in the CSS, and completes the detection of the SIB-2 message on the enhanced PDSCH. 14A; or, the scheduling information of the PDSCH where the SIB-2 message is located is not required to be scheduled in the PDCCH, and the SIB-2 message is detected on the enhanced PDSCH, as shown in FIG. 14B.
  • the UE After the SIB-2 is correctly received, the UE establishes an RRC connection with the base station through the enhanced random access procedure. After the RRC connection is established, the UE can interact with the base station for uplink and downlink service data. Its enhanced random access process specifically includes:
  • e B transmits the RAR on the enhanced PDCCH and the enhanced PDSCH; or, the eNB is pre-agreed to transmit the RAR on the enhanced PDCCH and the enhanced PDSCH;
  • the UE transmits a layer 2/layer 3 message on the enhanced PUSCH;
  • the eNB transmits a contention resolution message on the enhanced PDCCH and the enhanced PDSCH.
  • the enhanced random access procedure can be simplified, for example, only Layer 2/Layer 3 messages and contention resolution messages; accordingly, corresponding simplifications can also be made within the enhanced subframe cluster.
  • the sequence of the frame structure is a synchronization channel enhancement frame, a PBCH enhanced frame, a PDCCH/PDSCH enhanced frame required for transmitting the SIB-1, and a PDCCH/PDSCH enhanced frame required for transmitting the SIB-2,
  • the enhanced frame time of each module refers to the time that is sent from the eNB to the UE for correct reception.
  • the time domain resource and/or frequency domain resource occupied by the PRACH that propagates the preamble sequence code information is extended; I or the transmission power of the PRACH in the physical resource unit RE of the data information is enhanced by the preamble sequence code information.
  • the eNB receives multiple identical Preamble post-synthesis detections, and improves eNB demodulation performance by repeating transmission.
  • Enhance the way to PUSCH The time domain resource and/or the frequency domain resource occupied by the PUSCH of the transport layer 2/layer 3 message is extended; and/or the transmit power of the PUSCH reference signal of the transport layer 2/layer 3 message in the physical resource unit RE of the data information is enhanced.
  • e B may determine different types of enhanced subframe cluster types for different UEs, for example, e B classifies enhanced subframe cluster types according to path loss of the UE, and different channel enhancement schemes are adopted in different types of enhanced subframe clusters (eg, As shown in FIG. 15 , FIG. 15 is a schematic diagram of different path loss UEs corresponding to different types of enhanced subframe clusters according to an embodiment of the present invention.
  • the UE reports its own path loss
  • the eNB determines the enhanced subframe cluster type for the UE according to the path loss of the UE.
  • the frame structure of the different enhanced subframe clusters refers to the frame structure of the corresponding enhanced subframe cluster in the foregoing application instance 1 or application example 2.
  • the present invention enhances all the channels required for establishing a connection in an enhanced subframe cluster in real time, and the UE requiring coverage enhancement can smoothly complete the process of establishing a connection in the enhanced subframe cluster, and reduces the need for coverage enhancement.
  • the access time of the UE At the same time, the embodiment of the present invention enhances all channels only in the enhanced subframe cluster, and uses non-enhanced channels on other subframes except the enhanced subframe cluster to reduce the impact on the legacy UE.
  • the UE may be any one of the following, and may be static or mobile.
  • the static UE may be specifically included as a terminal, a mobile station, and a subscriber unit. Or a station, etc., the mobile UE may specifically include a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer ( The laptop computer ), the cordless phone, or the wireless local loop (WLL) station, etc., may be distributed throughout the wireless network.
  • PDA personal digital assistant
  • WLL wireless local loop
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

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

Abstract

La présente invention concerne un procédé de transmission de données, un procédé d'accès, un équipement de réseau et un équipement d'utilisateur, le procédé de transmission comprenant : la détermination des ressources nécessaires à l'envoi d'un groupe de sous-trames renforcées ; le renforcement des canaux de synchronisation pour transporter des informations de synchronisation et des canaux pour transporter des informations système successivement sur les ressources, les deux canaux étant dans le groupe de sous-trames renforcées ; dans le groupe de sous-trames renforcées, l'envoi successivement à un équipement d'utilisateur (UE) des informations de synchronisation sur les canaux de synchronisation renforcés et des informations système sur les canaux renforcés pour transporter des informations système. La présente invention permet ainsi de résoudre le problème technique de l'art antérieur d'amélioration de la couverture, qui était que le temps d'accès était trop long pour un équipement d'utilisateur avec la nécessité d'améliorer la couverture, tandis que des surdébits peuvent être transmis à un équipement d'utilisateur sans qu'une amélioration de la couverture soit nécessaire.
PCT/CN2013/070017 2013-01-04 2013-01-04 Procédé de transmission de données, dispositif, équipement de réseau et équipement d'utilisateur WO2014106322A1 (fr)

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