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WO2014048398A1 - 基于载波聚合的信息传输方法及装置 - Google Patents

基于载波聚合的信息传输方法及装置 Download PDF

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Publication number
WO2014048398A1
WO2014048398A1 PCT/CN2013/084649 CN2013084649W WO2014048398A1 WO 2014048398 A1 WO2014048398 A1 WO 2014048398A1 CN 2013084649 W CN2013084649 W CN 2013084649W WO 2014048398 A1 WO2014048398 A1 WO 2014048398A1
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Prior art keywords
pcell
scell
rnti
pdsch
rar message
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PCT/CN2013/084649
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English (en)
French (fr)
Inventor
刘扬
喻斌
杜忠达
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ZTE Corp
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ZTE Corp
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Definitions

  • the present invention relates to information transmission technologies in a carrier aggregation system, and in particular, to a carrier aggregation based information transmission method and apparatus. Background technique
  • LTE-Advanced, Long Term Evolution Advance is a 3GPP (the 3rd Generation Partner Project) organization to meet the International Telecommunication Union (ITU), Advanced International Mobile Telecommunications (IMT) -Advanced, International Mobile Telecommunication-Advanced).
  • the LTE-Advanced system is an evolved version based on Long Term Evolution (LTE). It introduces many new technologies to meet the basic needs of IMT-Advanced. One of the most important technologies is carrier aggregation.
  • the LTE-Advanced system Due to the current shortage of wireless spectrum resources, the spectrum resources owned by mobile operators in the world tend to be scattered, and IMT-Advanced requires higher peak rate indicators (100 Mbps for high mobility and 1 Gbps for low mobility).
  • the current 20MHz bandwidth of the LTE standard cannot meet the requirements of IMT-Advanced, so it needs to be expanded to higher bandwidth, such as 40MHz, 60MHz, or even higher.
  • One of the ways to increase the bandwidth and peak rate is to expand the frequency domain. For example, the bandwidth is expanded by "carrier aggregation" for several 20MHz-based LTE bands, which is the essence of carrier aggregation technology. Therefore, the LTE-Advanced system also belongs to the multi-carrier system.
  • the carrier participating in the aggregation is called a component carrier, and the user equipment (UE, User Equipment) can be the same.
  • the component carrier can use the frequency band already defined by LTE, or can use the frequency band specially added for LTE-Advanced. Based on the current spectrum resource shortage, it is impossible to always have a continuous component carrier in the frequency domain that can be allocated to the operator, so the component carrier may be continuous or discontinuous in the frequency band.
  • a carrier aggregation system for a user equipment, there may be one first carrier and one or more second carriers.
  • the first carrier is generally a primary carrier, and can carry signaling and data.
  • the second carrier is mainly used for carrying data, and can also carry part of signaling.
  • Carriers can be divided into uplink carriers (for user equipment to control station communication) and downlink carriers (for control station to user equipment communication).
  • the wireless service area corresponding to the first carrier is the first service area
  • the wireless service area corresponding to the second carrier is the second service area.
  • the first carrier, the first service area and the second carrier, and the concept and name of the second service area will have corresponding definitions.
  • a user equipment configured with carrier aggregation has only one radio resource management (RRC) connection in the network.
  • RRC radio resource management
  • Wireless resource management connection Establish/re-establish/switch when the NAI mobile information and security input service area is provided
  • the Serving Cell is called the primary cell (PCell), that is, the first serving area, and one or more secondary cells (SCells, Seondary Cell), that is, the second serving area, can be configured according to the user equipment capability configuration.
  • the carrier corresponding to the primary cell is a primary carrier, and includes a downlink primary component carrier (DL PCC, Downlink Primary Component Carrier) for controlling station-to-user equipment data transmission, and an uplink master for user equipment to control station number communication.
  • the component carrier (UL PCC, Uplink Primary Component Carrier) is class 0
  • the carrier corresponding to the secondary cell is a secondary small carrier, and includes a downlink secondary component carrier for controlling station-to-user equipment data transmission.
  • DL SCC Downlink Secondary Component Carrier
  • UL SCC Uplink Secondary Component Carrier
  • the base The station in order to implement and maintain uplink synchronization between the user equipment and the base station, the base The station sends a time advance (TA, Timing Advance) to each user equipment according to the transmission delay between the base station and each user equipment, and the user equipment compensates for the timing of the respective uplink transmission according to the time advancement sent by the base station, thereby making up for the user.
  • TA Timing Advance
  • the transmission delay of the UE to the base station is such that the uplink signals of different user equipments arrive at the base station within the receiving window of the base station.
  • the base station in order to obtain and maintain the uplink synchronization between the UE and the base station, the base station configures an uplink synchronization timer (TAT) for the UE, and if the UE can receive the time sent by the base station to the UE before the TAT expires, If the amount is advanced, the UE is considered to maintain uplink synchronization with the base station. Otherwise, the TAT times out and the UE considers that the uplink synchronization is lost.
  • TAT uplink synchronization timer
  • the UE obtains uplink synchronization with the base station by using a random access procedure, and after receiving the random access response (RAR, Random Access Response) sent by the base station, the UE starts the timer TAT, and according to The timing advance of the base station in the random access response advances or delays the timing of the uplink transmission.
  • RAR Random Access Response
  • the UE obtains the uplink synchronization with the base station during the TAT operation, if the TA command is sent to the UE by the base station, the TAT is restarted, and the time advancement carried in the TA command is used to advance or delay the uplink transmission time.
  • the UE If the UE does not receive the TA command during the TAT operation, that is, the TAT times out, the UE considers that it has lost uplink synchronization with the base station, deletes all uplink and downlink resources dynamically allocated to the UE, and clears all the uplink and downlink resources.
  • the hybrid adaptive retransmission buffer (HARQ buffer) data to be sent is sent to the radio resource control (RRC) sublayer to release the static/semi-static uplink physical resources allocated to the UE, and if there is an uplink thereafter
  • RRC radio resource control
  • the user equipment can work on multiple component carriers at the same time.
  • the component carriers can be continuous or discontinuous in the frequency band. They can be in the same frequency band or from different frequency bands. In the case where the component carriers are discontinuous, or the component carriers are from different frequency bands, since each component carrier has different transmission characteristics, the timing advances on the component carriers may be different from each other; even if each component carrier belongs to the same frequency band and On the frequency band Continuously, if each component carrier originates from a different Radio Remote Unit (RRU), or in order to increase cell coverage, each component carrier is processed via a different repeater, then the time on each component carrier The amount of advance may also differ from each other.
  • RRU Radio Remote Unit
  • the UE works only on one carrier (one carrier for the time division duplex mode, and one pair of uplink and downlink carriers for the frequency division duplex mode, which is referred to as a carrier for convenience of description), and only needs to maintain one uplink.
  • the uplink synchronization of the link, and in carrier aggregation, the UE can work on multiple component carriers at the same time, and the TAs of these component carriers may be different. This scenario is referred to as Multi-TA (MTA, Multiple TA). All cells that use the same TA and have the same downlink time reference form a TA group (TA GROUP).
  • the UE obtains uplink synchronization with the base station through a random access procedure.
  • the random access procedure may be initiated by physical downlink control channel signaling (PDCCH order) or a media access control layer (MAC) of the UE, optionally, PDCCH order or radio resource control (RRC, Radio Resource Control).
  • the signaling may allocate a random access preamble to the UE, and the random access procedure is a non-contention based manner; otherwise, the UE needs to select a random access preamble, and the random access procedure is a contention based manner.
  • Selecting a random access resource by the UE includes selecting a time-frequency domain resource such as a random access preamble and a physical random access channel (PRACH).
  • PRACH physical random access channel
  • Figure 1 is a flow chart based on the competitive random access process. As shown in Figure 1, the contention based random access procedure includes the following steps:
  • Step 101 UE transmits a random access preamble on the uplink (Random Access Preamble) 0 by a random access channel (RACH, Random Access CHannel)
  • RACH Random Access CHannel
  • Step 102 A media access control layer (MAC) of the base station (eNB) generates a random access response (RAR, Random Access Response) message, and sends the message in a downlink shared channel (DL-SCH, Downlink-Shared Channel).
  • RAR random access response
  • DL-SCH Downlink-Shared Channel
  • the RAR message includes at least a random access preamble identifier (RAPID, Random Access Preamble) IDentifier), time adjustment information (TA, Time Alignment), initial uplink grant (UL Grant, Uplink Grant), and temporary cell-radio network temporary identifier (Temporary C-RNTI);
  • the message passes through the physical downlink control channel (PDCCH, Physical The random access-Radio Network Temporary Identifier (RA-RNTI) on the Downlink Control CHannel is indicated; the UE needs to receive the random access response message in a predetermined receiving window.
  • PDCCH Physical downlink control channel
  • RA-RNTI Physical The random access-Radio Network Temporary Identifier
  • Step 103 The UE includes a Cell-Radio Network Temporary Identifier (C-RNTI) and a Media Control Element (MAC Control Element) on an Uplink-Shared Channel (UL-SCH). Or a Common Control Logical Channel Service Data Unit (CCCH SDU) including a Contention Resolution Identity; the message is sent to support Hybrid Automatic Retransmission ReQuest (HARQ).
  • C-RNTI Cell-Radio Network Temporary Identifier
  • MAC Control Element Media Control Element
  • UL-SCH Uplink-Shared Channel
  • CCCH SDU Common Control Logical Channel Service Data Unit
  • HARQ Hybrid Automatic Retransmission ReQuest
  • Step 104 The base station sends a contention resolution message on the DL-SCH.
  • the message is indicated by a C-RNTI or a temporary C-RNTI on the PDCCH, and may include a contention resolution identifier.
  • the message is sent to support HARQ.
  • FIG. 2 is a flow chart based on a non-contention random access process. As shown in FIG. 2, for a non-contention random access process, there is no contention resolution process, which specifically includes the following steps:
  • Step 201 The UE sends a random access preamble through the random access channel in the uplink.
  • Step 202 The media access control layer of the base station generates a random access response message, and sends the message to the UE on the downlink shared channel.
  • the random access procedure can only be performed in the primary cell and cannot be performed in the secondary cell.
  • the UE in order to obtain the TA on the SCell, the UE must send the RA preamble on the Scell, and then the UE receives the corresponding RAR message on the PCell.
  • the conventional technology defines RA-RNTI and C-RNTI/semi-persistent scheduling wireless network temporary identification in the same subframe. (SPS-RNTI, Semi Persistent Scheduling-Radio Network Temporary Identifier) When used, the UE does not need to decode those PDCCHs that use C-RNTI/SPS-RNTI scrambling for Cyclic Redundancy Check (CRC).
  • CRC Cyclic Redundancy Check
  • Indicated data (transmitted on the corresponding PDSCH). This definition is reasonable in the conventional technology.
  • the UE receiving the RA-RNTI scrambled RAR on the PCell often means that the quality of the radio link between the UE and the system is not good, so there is no need for other transmission and reception processes. Therefore, different carriers cannot transmit/receive at the same time.
  • the UE receives the RA-RNTI scrambled RAR on the PCELL. If the corresponding random access procedure is the SCell, the radio link quality of the UE and the system is no longer relevant. At this time, it is possible to simultaneously transmit/receive RA-RNTI scrambling and C-RNTI/SPS-RNTI scrambling information.
  • the main object of the present invention is to provide a carrier aggregation-based information transmission method and apparatus, which can simultaneously transmit and receive RA-RNTI scrambled physical downlink shared channels (PDSCH, Physical Downlink Shared Channel) carrying RAR messages. And information carried in the PDSCH carrying the downlink service information (DL-SCH) scrambled by the C-RNTI/SPS-RNTI.
  • PDSCH physical downlink shared channels
  • DL-SCH downlink service information
  • a carrier aggregation based information transmission method includes:
  • the UE determines whether the physical downlink shared channel PDSCH carrying the downlink data is received and decoded in one or more secondary cells SCell.
  • the determining whether to receive and decode the PDSCH carrying the downlink data in the one or more secondary cells SCell includes:
  • the UE searches for a PDSCH carried by the UE in the set of the activated downlink secondary cell DL SCell and performs decoding; the RAR message corresponds to random access of the PCell.
  • the UE does not perform decoding of the PDSCH on the SCell.
  • the determining whether to receive and decode the PDSCH carrying the downlink data in the one or more secondary cells SCell includes:
  • the UE When the UE receives the RAR message, when determining the uplink PCell synchronization, it searches for the PDSCH carried by the SCell in the activated DL SCell set to the UE and performs decoding; when determining that the uplink PCell is not synchronized, the UE does not perform the SCell. Decoding of PDSCH.
  • the method further includes:
  • the UE detects the RA-RNTI scrambled physical downlink control channel PDCCH on the PCell and decodes the PDSCH corresponding to the PDCCH according to the random access radio network temporary identifier RA-RNTI corresponding to the preamble Preamble time transmitted on the SCell, and obtains the PDSCH corresponding to the PDCCH. Said RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the cell radio network temporary identifier C-RNTI/SPS-RNTI used when receiving the PDSCH on the SCell, and the scheduling grant DL-Grant information of the PDSCH is obtained.
  • the method further includes:
  • the media access hybrid automatic repeat request MAC HARQ entity of the UE After the UE decodes the PDSCH of the SCell, and determines that the uplink synchronization timer TAT of the PCell is still valid, the media access hybrid automatic repeat request MAC HARQ entity of the UE sends the downlink corresponding to the SCell to the physical layer of the UE. Feedback of the data, the physical layer of the UE sends feedback to the network side.
  • the one or more SCells are in the same time advance TA group as the PCell;
  • the one or more SCells are not in the same TA group as the PCell.
  • a carrier aggregation based information transmission method includes: The control station sends a RAR message corresponding to the random access procedure of the UE in the SCell, and sends downlink data in one or more SCells; the RAR message is scrambled using the RA-RNTI, the downlink data Scrambling using C-RNTI/SPS-RNTI.
  • the method further includes:
  • the control station When the control station determines that the RAR message corresponds to the random access procedure of the SCell, the control station simultaneously transmits the RAR message corresponding to the SCell random access and the downlink data in the one or more SCells.
  • the method further includes:
  • the control station listens to the physical uplink control channel PUCCH to receive feedback from the UE whether to receive downlink data.
  • the method further includes:
  • the control station determines whether the RAR message corresponds to the random access of the SCell, and listens to the PUCCH to receive feedback of whether the UE receives downlink data.
  • the method further includes:
  • control station When the control station determines that the TAT of the PCell of the UE is valid, it listens to the PUCCH and receives feedback from the UE whether downlink data is received.
  • control station comprises a base station, a micro base station, a home base station, and a relay station.
  • a carrier aggregation based information transmission method includes:
  • the UE determines whether the PDSCH carrying the downlink data is received and decoded in the PCell at the same time.
  • the determining whether to receive and decode the PDSCH carrying the downlink data in the PCell at the same time includes:
  • the UE searches for a PDSCH carried by the PCell to the UE and performs decoding; when the RAR message corresponds to a random access procedure of the PCell, the UE The decoding of the PDSCH on the PCell is not performed.
  • the determining whether to receive and decode the downlink data in the PCell at the same time PDSCH including:
  • the UE When the UE receives the RAR message, when determining the uplink PCell synchronization, searching for the PDSCH carried by the PCell to the UE and performing decoding; when determining that the uplink PCell is not synchronized, the UE does not perform decoding of the PDSCH on the PCell. .
  • the method further includes:
  • the UE detects the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the preamble Preamble time transmitted on the SCell, and decodes the PDSCH corresponding to the PDCCH, to obtain the RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the C-RNTI/SPS-RNTI used when the PDSCH is received on the PCell, and the DL-Grant information of the PDSCH is obtained.
  • the method further includes:
  • the UE After the UE decodes the PDSCH of the SCell, and determines that the uplink TAT of the PCell is still valid, the data is fed back, and the physical layer of the UE sends the feedback to the network side.
  • a carrier aggregation based information transmission method includes:
  • the control station transmits a RAR message corresponding to the random access procedure of the UE in the SCell, and transmits downlink data in the PCell; the RAR message is scrambled using RA-RNTI, and the downlink data uses C -RNTI/SPS-RNTI scrambling.
  • the method further includes:
  • the control station determines that the RAR message corresponds to the random access procedure of the SCell, and simultaneously sends the RAR message corresponding to the SCell random access and the downlink data in the PCell.
  • the method further includes:
  • the control station listens to the PUCCH and receives feedback from the UE whether downlink data is received.
  • the method further includes:
  • the control station determines that the RAR message corresponds to random access of the SCell, and listens to the The PUCCH receives feedback of whether the UE receives downlink data.
  • the method further includes:
  • control station When the control station determines that the TAT of the PCell of the UE is valid, it listens to the PUCCH and receives feedback from the UE whether downlink data is received.
  • control station comprises a base station, a micro base station, a home base station, and a relay station.
  • An apparatus for transmitting information based on carrier aggregation comprising: a receiving unit and a determining unit, wherein: the receiving unit is configured to receive a RAR message corresponding to the random access procedure at the PCell; and the determining unit is configured to determine whether one or more The PDSCH carrying the downlink data is received and decoded in the SCell.
  • the apparatus further comprises a first search decoding unit
  • the first search and decoding unit is triggered to search for a PDSCH that is carried in the set of the activated DL SCells and is decoded, and the RAR message is determined to be corresponding to the RAR message.
  • the first search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the apparatus further includes a second search decoding unit;
  • the determining unit determines that the uplink PCell is synchronized, and triggers the second search and decoding unit to search for and decode the PDSCH carried by the SCell in the activated DL SCell set to the UE;
  • the second search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the device further includes:
  • the detecting and decoding unit is configured to detect the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time transmitted on the SCell, and decode the PDSCH corresponding to the PDCCH, to obtain the RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the C-RNTI/SPS-RNTI used when receiving the PDSCH on the SCell, and the scheduling grant DL-Grant information of the PDSCH is obtained.
  • An apparatus for transmitting information based on a carrier aggregation comprising: a scrambling unit and a sending unit, wherein: the scrambling unit is configured to scramble the RAR message corresponding to the random access procedure of the UE in the SCell by using RA-RNTI, The downlink data is scrambled by using a C-RNTI/SPS-RNTI; and the sending unit is configured to send the RAR message in a PCell of the UE, and send downlink data in one or more SCells.
  • the device further includes:
  • the determining unit is configured to: when the RAR message is determined to correspond to the random access procedure of the SCell, trigger the sending unit to simultaneously send the RAR message corresponding to the SCell random access and the downlink data in the one or more SCells.
  • An apparatus for transmitting information based on a carrier aggregation comprising: a receiving unit and a determining unit, wherein: the receiving unit is configured to receive a RAR message of the corresponding machine access procedure in the PCell; and the determining unit is configured to receive the data in the PCell at the same time
  • the PDSCH carrying the downlink data is decoded.
  • the apparatus further comprises a first search decoding unit
  • the first search decoding unit is triggered to search for the PDSCH carried by the PCell to the UE and perform decoding, and determine that the RAR message corresponds to the PCell.
  • the first search decoding unit is not triggered to perform decoding of the PDSCH on the PCell.
  • the apparatus further includes a second search decoding unit;
  • the determining unit determines that the uplink PCell is synchronized, triggers the second search and decoding unit to search for the PDSCH carried by the PCell to the UE, and performs decoding; the determining unit determines the uplink PCell.
  • the second search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the device comprises:
  • the RA-RNTI detects the RA-RNTI scrambled PDCCH on the PCell and decodes the PDSCH corresponding to the PDCCH, and acquires the RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the C-RNTI/SPS-RNTI used when the PDSCH is received on the PCell, and the DL-Grant information of the PDSCH is obtained.
  • An apparatus for transmitting information based on a carrier aggregation comprising: a scrambling unit and a sending unit, wherein: the scrambling unit is configured to scramble the RAR message corresponding to the random access procedure of the UE in the SCell by using RA-RNTI, The downlink data is scrambled by using a C-RNTI/SPS-RNTI; and the sending unit is configured to send the RAR message in a PCell of the UE, and send downlink data in the PCell.
  • the device further includes:
  • the determining unit is configured to: when the RAR message is determined to correspond to the random access procedure of the SCell, trigger the sending unit to simultaneously send the RAR message corresponding to the SCell random access and the downlink data in the one or more SCells.
  • the UE determines whether the PDSCH carrying the downlink data is received and decoded in one or more SCells at the same time.
  • the UE searches for the PDSCH carried by the UE in the set of the activated downlink secondary cell (DL SCell) and performs decoding; when the RAR message corresponds to the random access procedure of the PCell, the UE The decoding of the PDSCH on the SCell is not performed.
  • the UE determines that the uplink PCell is synchronized, searches for the PDSCH carried by the SCell in the activated DL SCell set to the UE, and performs decoding; when determining that the uplink PCell is not synchronized, the UE does not perform decoding of the PDSCH on the SCell.
  • the UE determines whether the PDSCH carrying the downlink data is received and decoded in the PCell at the same time.
  • the UE searches for the PDSCH carried by the PCell to the UE and performs decoding.
  • the UE does not perform decoding of the PDSCH on the PCell.
  • the UE receives the RAR message, it determines the uplink PCell.
  • the PDSCH carried by the PCell to the UE is searched and decoded.
  • the UE When it is determined that the uplink PCell is not synchronized, the UE does not perform decoding of the PDSCH on the PCell.
  • the present invention implements information carried in the PDSCH of the PDSCH carrying the RAR message and the C-RNTI/SPS-RNTI scrambled bearer downlink service information (DL-SCH) which are simultaneously transmitted and received by the RA-RNTI.
  • DL-SCH C-RNTI/SPS-RNTI scrambled bearer downlink service information
  • Figure 1 is a flow chart based on a competitive random access procedure
  • FIG. 3 is a flowchart of a carrier aggregation based information transmission method according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a carrier aggregation based information transmission method according to another embodiment of the present invention
  • FIG. 5 is a first embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a carrier aggregation-based information transmission apparatus according to a second embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a carrier aggregation-based information transmission apparatus according to a third embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the structure of a carrier aggregation based information transmission apparatus according to a fourth embodiment of the present invention. detailed description
  • FIG. 3 is a flowchart of a carrier aggregation based information transmission method according to an embodiment of the present invention. As shown in FIG. 3, the carrier aggregation based information transmission method of this example includes the following steps:
  • Step 301 One or more SCells send downlink data to the UE.
  • the downlink data is carried in a PDSCH, and the downlink data is scrambled by a C-RNTI and/or an SPS-RNTI.
  • FIG. 4 is a flowchart of a carrier aggregation based information transmission method according to another embodiment of the present invention. As shown in FIG. 4, the carrier aggregation based information transmission method of this example includes the following steps:
  • Step 401 The PCell sends downlink data to the UE, where the downlink data is carried in
  • the downlink data is scrambled by C-RNTI and/or SPS-RNTI.
  • Step 402 The PCell sends a random access response RAR message to the UE, where the RAR message corresponds to the SCell RACH, and the RA-RNTI scrambling is applied.
  • the simultaneous meaning means in the same subframe.
  • the UE receives the RAR message corresponding to the random access procedure at the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in one or more SCells at the same time.
  • DL-SCH downlink data
  • the UE searches for the PDSCH of the SCell in the set and performs decoding on the UE according to the set of activated DL SCells; if not, the UE does not perform the PDSCH on the SCell. Decoding.
  • the uplink PCell of the UE When receiving the RAR message, it is determined whether the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether the SCell in the set is carried to the UEPDSCH according to the set of activated DL SCells. Decoding; if not, the UE does not perform decoding of the PDSCH on the SCell.
  • the SPS-RNTI detects the C-RNTI/SPS-RNTI scrambled PDCCH to obtain PDSCH scheduling grant information (DL-Grant).
  • the one or more SCells may be in the same TA group as the PCell or may not be in the same TA group.
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the SCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the SCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the base station.
  • TAT PCell uplink synchronization timer
  • the base station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in one or more SCells at the same time.
  • the Rell message of the PCell is scrambled by the RA-RNTI, and the downlink data of the SCell is scrambled by the C-RNTI/SPS-RNTI.
  • the base station detects the feedback corresponding to the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the method includes: before the base station simultaneously sends the RAR message and the downlink data in the PCell and the one or more SCells, determining whether the RAR corresponds to the random access procedure of the SCell If yes, the RAR message corresponding to the SCell random access procedure and the downlink data in one or more SCells are simultaneously transmitted.
  • the base station After the base station sends the RAR message and the downlink data in the PCell and the one or more SCells at the same time, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if yes, the feedback is detected in the corresponding uplink subframe (ACK/NACK).
  • the corresponding PUCCH receives the feedback.
  • the base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK/ NACK)
  • ACK/ NACK uplink subframe
  • Example three The UE receives the RAR message corresponding to the random access procedure in the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time.
  • DL-SCH downlink data
  • Determining whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time including:
  • Determining whether the RAR message corresponds to a random access procedure of the SCell if yes, searching for a PDSCH for the UE on the PCell and decoding; if not, the UE does not perform decoding of the PDSCH on the PCell.
  • the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether there is a bearer for the UEPDSCH and performs decoding on the PCell; if not, the UE does not perform the PCell. Decoding of the PDSCH.
  • the UE detects the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time on the SCell, and decodes the PDSCH corresponding to the PDCCH to acquire the RAR message; and uses the CSCH when receiving the PDSCH carrying the downlink data on the PCell.
  • - RNTI/SPS-RNTI Detects the C-RNTI/SPS-RNTI scrambled PDCCH Obtains PDSCH scheduling grant information (DL-Grant).
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the PCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the PCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the base station.
  • TAT PCell uplink synchronization timer
  • the base station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in the PCell at the same time.
  • the RAR message of the PCell is scrambled using the RA-RNTI, and the downlink data of the PCell is scrambled using the C-RNTI/SPS-RNTI.
  • the base station detects the feedback corresponding to the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the base station After the base station sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if yes, the PUCCH receiving station corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe. Feedback.
  • the base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK/ NACK)
  • ACK/ NACK uplink subframe
  • the UE receives the RAR message corresponding to the random access procedure at the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in one or more SCells at the same time.
  • DL-SCH downlink data
  • the UE searches for the PDSCH of the SCell in the set and performs decoding on the UE according to the set of activated DL SCells; if not, the UE does not perform the PDSCH on the SCell. Decoding.
  • the uplink PCell of the UE When receiving the RAR message, it is determined whether the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether the SCell in the set is carried to the UEPDSCH according to the set of activated DL SCells. Decoding; if not, the UE does not perform decoding of the PDSCH on the SCell.
  • DL-Grant scheduling authorization for PDSCH Information
  • the one or more SCells may be in the same TA group as the PCell or may not be in the same TA group.
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the SCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the SCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the Pico base station.
  • TAT PCell uplink synchronization timer
  • the Pico base station sends a RAR message corresponding to the SCell random access of the UE in the PCell of the UE, and determines whether downlink data can be sent in one or more SCells at the same time.
  • the Rell message of PCell is scrambled by RA-RNTI, and the downlink data of SCell is scrambled by C-RNTI/SPS-RNTI.
  • the Pico base station detects the feedback corresponding to the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the PeNB Before the PeNB sends the RAR message and the downlink data in the PCell and the one or more SCells, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the RAR message corresponding to the SCell random access procedure is simultaneously sent and Downstream data in one or more SCells.
  • the PeNB After the PeNB sends the RAR message and the downlink data in the PCell and the one or more SCells at the same time, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if yes, the feedback is detected in the corresponding uplink subframe (ACK/ NACK) The corresponding PUCCH receives the feedback.
  • the Pico base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK) /NACK)
  • the corresponding PUCCH receives the feedback.
  • the UE receives the RAR message corresponding to the random access procedure on the PCell, and determines whether it can be simultaneously
  • the PDSCH carrying the downlink data (DL-SCH) is received and decoded in the PCell.
  • Determining whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time including:
  • Determining whether the RAR message corresponds to a random access procedure of the SCell if yes, searching for a PDSCH for the UE on the PCell and decoding; if not, the UE does not perform decoding of the PDSCH on the PCell.
  • the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether there is a bearer for the UEPDSCH and performs decoding on the PCell; if not, the UE does not perform the PCell. Decoding of the PDSCH.
  • the UE detects the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time on the SCell, and decodes the PDSCH corresponding to the PDCCH to acquire the RAR message; and uses the CSCH when receiving the PDSCH carrying the downlink data on the PCell.
  • - RNTI/SPS-RNTI Detects the C-RNTI/SPS-RNTI scrambled PDCCH Obtains PDSCH scheduling grant information (DL-Grant).
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the PCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the PCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the Pico base station.
  • TAT PCell uplink synchronization timer
  • the Pico base station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in the PCell at the same time.
  • the RAR message of the PCell is scrambled by the RA-RNTI, and the downlink data of the PCell is scrambled by using the C-RNTI/SPS-RNTI.
  • the Pico base station detects the feedback corresponding to the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the Pico base station Before the Pico base station simultaneously sends the RAR message and the downlink data in the PCell, it is determined Whether the RAR corresponds to the random access procedure of the SCell. If yes, the RAR message corresponding to the SCell random access procedure and the downlink data in the PCell are simultaneously transmitted.
  • the PeNB After the PeNB sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the PUCCH reception corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe.
  • the feedback After the PeNB sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the PUCCH reception corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe. The feedback.
  • the Pico base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK) /NACK)
  • the corresponding PUCCH receives the feedback.
  • the UE receives the RAR message corresponding to the random access procedure at the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in one or more SCells at the same time.
  • DL-SCH downlink data
  • the UE searches for the PDSCH of the SCell in the set and performs decoding on the UE according to the set of activated DL SCells; if not, the UE does not perform the PDSCH on the SCell. Decoding.
  • the uplink PCell of the UE When receiving the RAR message, it is determined whether the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether the SCell in the set is carried to the UEPDSCH according to the set of activated DL SCells. Decoding; if not, the UE does not perform decoding of the PDSCH on the SCell.
  • the PDCCH obtains scheduling grant information (DL-Grant) of the PDSCH.
  • the one or more SCells may be in the same TA group as the PCell, or may not be in the same TA group.
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the SCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the SCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the home base station (Femto or HeNB).
  • TAT PCell uplink synchronization timer
  • the home base station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether downlink data can be sent in one or more SCells at the same time.
  • the Rell message of PCell is scrambled by RA-RNTI
  • the downlink data of SCell is scrambled by C-RNTI/SPS-RNTI.
  • the home base station detects the feedback in the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the method includes: before the home base station sends the RAR message and the downlink data in the PCell and the one or more SCells, whether the RAR corresponds to the random access of the SCell. The process, if yes, simultaneously sends the RAR message corresponding to the SCell random access procedure and the downlink data in one or more SCells.
  • the home base station After the home base station sends the RAR message and the downlink data in the PCell and the one or more SCells at the same time, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if yes, the feedback is detected in the corresponding uplink subframe (ACK/ NACK) The corresponding PUCCH receives the feedback.
  • the home base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, detects the feedback (ACK in the corresponding uplink subframe). /NACK)
  • the corresponding PUCCH receives the feedback.
  • the UE receives the RAR message corresponding to the random access procedure on the PCell, and determines whether it can be simultaneously
  • the PDSCH carrying the downlink data (DL-SCH) is received and decoded in the PCell.
  • Determining whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time including:
  • Determining whether the RAR message corresponds to a random access procedure of the SCell if yes, searching for a PDSCH for the UE on the PCell and decoding; if not, the UE does not perform decoding of the PDSCH on the PCell.
  • the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether there is a bearer for the UEPDSCH and performs decoding on the PCell; if not, the UE does not perform the PCell. Decoding of the PDSCH.
  • the UE detects the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time on the SCell, and decodes the PDSCH corresponding to the PDCCH to acquire the RAR message; and uses the CSCH when receiving the PDSCH carrying the downlink data on the PCell.
  • - RNTI/SPS-RNTI Detects the C-RNTI/SPS-RNTI scrambled PDCCH Obtains PDSCH scheduling grant information (DL-Grant).
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the PCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the PCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the home base station.
  • TAT PCell uplink synchronization timer
  • the home base station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in the PCell at the same time.
  • the RAR message of the PCell is scrambled by the RA-RNTI, and the downlink data of the PCell is scrambled by using the C-RNTI/SPS-RNTI.
  • the home base station detects the feedback in the PUCCH corresponding to the feedback (ACK/NACK) in the corresponding uplink subframe.
  • the home base station Before the home base station simultaneously sends the RAR message and the downlink data in the PCell, it is determined that the Whether the RAR corresponds to the random access procedure of the SCell. If yes, the RAR message corresponding to the SCell random access procedure and the downlink data in the PCell are simultaneously transmitted.
  • the home base station After the home base station simultaneously sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the PUCCH reception corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe.
  • the feedback After the home base station simultaneously sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the PUCCH reception corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe. The feedback.
  • the home base station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (that is, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, detects the feedback (ACK in the corresponding uplink subframe). /NACK)
  • the corresponding PUCCH receives the feedback.
  • the UE receives the RAR message corresponding to the random access procedure at the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in one or more SCells at the same time.
  • DL-SCH downlink data
  • the UE searches for the PDSCH of the SCell in the set and performs decoding on the UE according to the set of activated DL SCells; if not, the UE does not perform the PDSCH on the SCell. Decoding.
  • the uplink PCell of the UE When receiving the RAR message, it is determined whether the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether the SCell in the set is carried to the UEPDSCH according to the set of activated DL SCells. Decoding; if not, the UE does not perform decoding of the PDSCH on the SCell.
  • the PDCCH obtains scheduling grant information (DL-Grant) of the PDSCH.
  • the one or more SCells may be in the same TA group as the PCell, or may not be in the same TA group.
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the SCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the SCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the relay station.
  • TAT PCell uplink synchronization timer
  • the relay station transmits the RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in one or more SCells at the same time.
  • the Rell message of PCell is scrambled by RA-RNTI
  • the downlink data of SCell is scrambled by C-RNTI/SPS-RNTI.
  • the relay station receives the feedback by the PUCCH corresponding to the detection feedback (ACK/NACK) in the corresponding uplink subframe.
  • the method specifically includes: before the relay station sends the RAR message and the downlink data in the PCell and the one or more SCells, it is determined whether the RAR corresponds to the random access procedure of the SCell. If yes, the RAR message corresponding to the SCell random access procedure and the downlink data in one or more SCells are simultaneously transmitted.
  • the relay station After the relay station sends the RAR message and the downlink data in the PCell and the one or more SCells at the same time, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if yes, the feedback is detected in the corresponding uplink subframe (ACK/NACK).
  • the corresponding PUCCH receives the feedback.
  • the relay station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (ie, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK/ NACK)
  • ACK/ NACK uplink subframe
  • the UE receives the RAR message corresponding to the random access procedure in the PCell, and determines whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time. Determining whether the PDSCH carrying the downlink data (DL-SCH) can be received and decoded in the PCell at the same time, including:
  • Determining whether the RAR message corresponds to a random access procedure of the SCell if yes, searching for a PDSCH for the UE on the PCell and decoding; if not, the UE does not perform decoding of the PDSCH on the PCell.
  • the uplink PCell of the UE is synchronized (that is, whether the PCell uplink synchronization timer TAT is valid). If the UE synchronizes, the UE searches whether there is a bearer for the UEPDSCH and performs decoding on the PCell; if not, the UE does not perform the PCell. Decoding of the PDSCH.
  • the UE detects the RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time on the SCell, and decodes the PDSCH corresponding to the PDCCH to acquire the RAR message; and uses the CSCH when receiving the PDSCH carrying the downlink data on the PCell.
  • - RNTI/SPS-RNTI Detects C-RNTI/SPS-RNTI scrambled PDCCH Obtain PDSCH scheduling grant information (DL-Grant).
  • the UE MAC HARQ entity After the UE decodes the PDSCH of the PCell, if the PCell uplink synchronization timer (TAT) is still valid, the UE MAC HARQ entity normally sends feedback (ACK/NACK) corresponding to the downlink data in the PCell to the physical layer, and the physical layer of the UE feeds back the ACK. /NACK to the relay station.
  • TAT PCell uplink synchronization timer
  • the relay station sends a RAR message corresponding to the random access of the UE in the PCell of the UE, and determines whether the downlink data can be sent in the PCell at the same time.
  • the RAR message of the PCell is scrambled using the RA-RNTI, and the downlink data of the PCell is scrambled using the C-RNTI/SPS-RNTI.
  • the relay station receives the feedback by the PUCCH corresponding to the detection feedback (ACK/NACK) in the corresponding uplink subframe.
  • the relay station Before the relay station sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell. If yes, the corresponding SCell random is sent at the same time. The RAR message of the access procedure and the downlink data in the PCell.
  • the relay station After the relay station sends the RAR message and the downlink data in the PCell, it is determined whether the RAR corresponds to the random access procedure of the SCell, and if so, the PUCCH receiving station corresponding to the feedback (ACK/NACK) is detected in the corresponding uplink subframe. Feedback.
  • the relay station detects whether the uplink PCell of the UE is synchronized before receiving the feedback (ACK/NACK) (ie, whether the PCell uplink synchronization timer TAT is valid), and if the synchronization, the feedback is detected in the corresponding uplink subframe (ACK/ NACK)
  • ACK/ NACK uplink subframe
  • FIG. 5 is a schematic structural diagram of a carrier aggregation-based information transmission apparatus according to a first embodiment of the present invention.
  • the carrier aggregation-based information transmission apparatus of this example includes a receiving unit 50 and a determining unit 51, where:
  • the receiving unit 50 is configured to receive a RAR message corresponding to the random access procedure at the PCell.
  • the determining unit 51 is configured to determine whether the PDSCH carrying the downlink data is received and decoded in one or more SCells at the same time.
  • the carrier aggregation based information transmission apparatus of this example further includes a first search decoding unit (not shown in FIG. 5);
  • the first search decoding unit is triggered to search for a PDSCH carried by the UE in the set of activated DL SCells, and performs decoding to determine the RAR message.
  • the first search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the carrier aggregation based information transmission apparatus of this example further includes a second search decoding unit (not shown in FIG. 5);
  • the determining unit 51 determines that the uplink PCell is synchronized, and triggers the second search and decoding unit to search for the PDSCH carried by the SCell in the activated DL SCell set to the UE and decode the PDSCH;
  • the second search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the carrier aggregation-based information transmission apparatus of this example further includes:
  • a detection decoding unit (not shown in FIG. 5) configured to detect an RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time transmitted on the SCell and decode the PDSCH corresponding to the PDCCH, and obtain the RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the C-RNTI/SPS-RNTI used when receiving the PDSCH on the SCell, and the PDSCH scheduling grant DL-Grant information is obtained.
  • the carrier aggregation based information transmission apparatus shown in this example is suitable for use in a UE.
  • the implementation functions of the processing units in the carrier aggregation based information transmission apparatus shown in FIG. 5 can be understood by referring to the related description of the foregoing carrier aggregation based information transmission method. It should be understood by those skilled in the art that the functions of the processing units in the carrier aggregation-based information transmission apparatus shown in FIG. 5 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.
  • FIG. 6 is a schematic diagram showing the structure of a carrier aggregation-based information transmission apparatus according to a second embodiment of the present invention. As shown in FIG. 6, the carrier aggregation-based information transmission apparatus scrambling unit 60 and the transmission unit 61 of the present example, wherein:
  • the scrambling unit 60 is configured to scramble the RAR message corresponding to the random access procedure of the UE in the SCell by RA-RNTI, and scramble the downlink data using C-RNTI/SPS-RNTI;
  • the RAR message is configured to be sent at the PCell of the UE while transmitting downlink data in one or more SCells.
  • the carrier aggregation-based information transmission apparatus of this example further includes:
  • a determining unit (not shown in FIG. 6) configured to: when the RAR message is determined to correspond to a random access procedure of the SCell, trigger the sending unit 60 to simultaneously send the corresponding SCell random access RAR message and downlink data in one or more SCells.
  • the carrier aggregation based information transmission apparatus shown in this example is suitable for use in a base station.
  • FIG. 7 is a schematic structural diagram of a carrier aggregation-based information transmission apparatus according to a third embodiment of the present invention.
  • the carrier aggregation-based information transmission apparatus of this example includes a receiving unit 70 and a determining unit 71, where:
  • the receiving unit 70 is configured to receive the RAR message of the corresponding machine access procedure in the PCell.
  • the determining unit 71 is configured to receive and decode the PDSCH carrying the downlink data in the PCell at the same time.
  • the carrier aggregation based information transmission apparatus of this example further includes a first search decoding unit (not shown in FIG. 7);
  • the first search decoding unit is triggered to search for the PDSCH carried by the PCell to the UE and perform decoding, and the RAR message is determined to correspond to the PCell.
  • the first search decoding unit is not triggered to perform decoding of the PDSCH on the PCell.
  • the carrier aggregation based information transmission apparatus of this example further includes a second search decoding unit (not shown in FIG. 7);
  • the determining unit 71 determines that the uplink PCell is synchronized, triggers the second search and decoding unit to search for the PDSCH carried by the PCell to the UE, and performs decoding; the determining unit determines When the uplink PCell is not synchronized, the second search decoding unit is not triggered to perform decoding of the PDSCH on the SCell.
  • the carrier aggregation-based information transmission apparatus of this example further includes:
  • a detection decoding unit (not shown in FIG. 7) configured to detect an RA-RNTI scrambled PDCCH on the PCell according to the RA-RNTI corresponding to the Preamble time transmitted on the SCell and decode the PDSCH corresponding to the PDCCH, and obtain the RAR message;
  • the C-RNTI/SPS-RNTI scrambled PDCCH is detected according to the C-RNTI/SPS-RNTI used when receiving the PDSCH on the PCell, and the DL-Grant information of the PDSCH is obtained.
  • the carrier aggregation based information transmission apparatus shown in this example is suitable for use in a UE.
  • the implementation functions of the processing units in the carrier aggregation based information transmission apparatus shown in FIG. 7 can be understood by referring to the related description of the foregoing carrier aggregation based information transmission method. It should be understood by those skilled in the art that the functions of the processing units in the carrier aggregation-based information transmission apparatus shown in FIG. 7 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.
  • FIG. 8 is a schematic structural diagram of a carrier aggregation-based information transmission apparatus according to a fourth embodiment of the present invention.
  • the carrier aggregation-based information transmission apparatus of this example includes a scrambling unit 80 and a transmitting unit 81, where:
  • the scrambling unit 80 is configured to scramble the RAR message corresponding to the random access procedure of the UE in the SCell by RA-RNTI, and scramble the downlink data by using C-RNTI/SPS-RNTI;
  • the RAR message is configured to be sent at the PCell of the UE, while the downlink data is sent in the PCell.
  • the carrier aggregation based information transmission apparatus of this example further includes:
  • a determining unit (not shown in FIG. 8) configured to: when the RAR message is determined to correspond to a random access procedure of the SCell, trigger the sending unit 80 to simultaneously send a RAR message corresponding to the SCell random access and one or more SCells Downstream data in the middle.
  • the carrier aggregation based information transmission apparatus shown in this example is suitable for use in a base station.
  • the sending unit and the receiving unit can be implemented by using an antenna system.
  • the determining unit, the scrambling unit, the detecting and decoding unit, the determining unit, and the like can be implemented by a processor, a microprocessor, an FPGA, a DSP, or the like.
  • the above various processing units or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed among multiple computing devices.
  • the network may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps in the fabrication are implemented as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

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Description

基于载波聚合的信息传输方法及装置 技术领域
本发明涉及载波聚合系统中的信息传输技术, 尤其涉及一种基于载波 聚合的信息传输方法及装置。 背景技术
高级长期演进系统( LTE- Advanced, Long Term Evolution Advance )是 第三代合作伙伴计划 ( 3GPP, the 3rd Generation Partner Project )组织为了 满足国际电信联盟( ITU, International Telecommunication Union )、 高级国 际 移 动 通 讯 ( IMT-Advanced , International Mobile Telecommunication-Advanced )的要求而推出的标准。 LTE- Advanced系统是 在长期演进系统(LTE, Long Term Evolution )基础上的一个演进版本, 其 引入了很多新技术来满足 IMT-Advanced的基本需求,其中最重要的一项技 术就是载波聚合。
由于目前无线频谱资源的紧缺性, 世界各移动运营商拥有的频谱资源 往往比较零散, 而 IMT-Advanced要求峰值速率的指标更高(高移动性下支 持 100Mbps, 低移动性下支持 lGbps ), 以目前的 LTE标准最大 20MHz的 带宽是无法满足 IMT-Advanced要求的, 所以需要扩充到更高带宽, 比如 40MHz, 60MHz, 甚至更高。 提高带宽和峰值速率的方法之一是对频域进 行扩充, 例如将几个基于 20MHz的 LTE频带通过 "载波聚合" 的方式进行 带宽扩大, 这就是载波聚合技术的本质。 因此, LTE- Advanced系统也属于 多载波系统 。
应用了载波聚合技术的 LTE-Advanced系统中,参与聚合的载波被称为 分量载波( Component Carrier ), 用户设备(UE, User Equipment )可以同 时在多个分量载波上和 eNB进行收发传输。 分量载波可以使用 LTE已经定 义的频段, 也可以使用为 LTE- Advanced专门新增的频段。 基于目前频谱资 源紧张, 不可能总有频域上连续的分量载波可以分配给运营商使用, 因此 分量载波在频带上可以是连续的, 也可以是不连续的。
在载波聚合系统中, 对于某一个用户设备来说, 可以有一个第一载波 和一个或多个第二载波。 第一载波一般为主要的载波, 可以承载信令和数 据, 第二载波主要用于承载数据, 也可以承载部分信令。 载波可以分为上 行载波(用于用户设备到控制站通信) 和下行载波(用于控制站到用户设 备通信)。 对应第一载波的无线服务区为第一服务区, 对应第二载波的无线 服务区为第二服务区。 在不同的系统中, 第一载波, 第一服务区和第二载 波, 第二服务区的概念和名称都会有相应的细节定义。
例如在 LTE/LTE-A系统中, 配置了载波聚合的用户设备在网内只有一 个无线资源管理( RRC, Radio Resource Control )连接。 无线资源管理连接 建立 /重新建立 /切换发生时, 提供 NAI 移动信息和安全输入的服务区
( Serving Cell )被称为主小区(PCell, Primary Cell ), 即第一服务区, 而根 据用户设备能力配置可以配置一个或者多个辅小区(SCell, Seondary Cell ), 即第二服务区。 进一步地, 主小区对应的载波就是主载波, 其中包括用于 控制站到用户设备数据传输的下行主分量载波( DL PCC, Downlink Primary Component Carrier )和用于用户设备到控制站数通信的上行主分量载波( UL PCC, Uplink Primary Component Carrier )0 类 4以的, 辅小区对应的载波尤是 辅小载波, 其中, 包括用于控制站到用户设备数据传输的下行辅分量载波
( DL SCC, Downlink Secondary Component Carrier )和用于用户设备到控 制站数据通信的上行辅分量载波(UL SCC, Uplink Secondary Component Carrier )。
在 LTE系统中, 为了实现并保持用户设备与基站之间的上行同步, 基 站根据基站与各用户设备之间的传输时延发送时间提前量 (TA, Timing Advance )给各用户设备, 用户设备根据基站发送的时间提前量提前或推迟 各自上行传输的时机,从而弥补用户中 UE至基站的传输时延,使得不同用 户设备的上行信号都在基站的接收窗口之内到达基站。
LTE系统中, 为了获得并保持 UE与基站之间的上行同步, 基站为 UE 配置了一个上行同步定时器( TAT, Time Alignment Timer ),若 UE能在 TAT 超时之前接收到基站发送给 UE的时间提前量,则认为该 UE与该基站之间 保持上行同步, 否则 TAT超时, UE认为失去上行同步。 在未同步状态或者 失步状态, UE通过随机接入过程获得与基站之间的上行同步, UE接收到 基站发送的随机接入响应 (RAR, Random Access Response )后, 启动定时 器 TAT, 并根据基站在随机接入响应中携带的时间提前量提前或推迟上行 传输的时机。 UE获得与基站的上行同步后, 在 TAT运行期间, 如果接收基 站发送给 UE的 TA命令 ( TA command ), 则重启 TAT, 并使用 TA命令中 携带的时间提前量提前或推迟上行传输时间, UE认为自己继续与基站保持 上行同步; 如果 UE在 TAT运行期间没有接收到 TA命令, 即 TAT超时时, UE认为自己与基站失去了上行同步, 删除动态分配给该 UE的所有上下行 资源, 清空所有上行待发送的混合自适应重传緩冲区(HARQ buffer )数据, 通知无线资源控制 (RRC, Radio Resource Control )子层释放掉分配给该 UE的静态 /半静态上行物理资源,此后如果有上行数据需要发送或有下行数 据需要接收, UE都需要首先进行随机接入以重新获得上行同步。
引入载波聚合后, 用户设备可以同时工作在多个分量载波上, 这些分 量载波在频带上可以是连续的, 也可以是不连续的; 可以是同一频带内的, 还可以是来自于不同频带。 对于分量载波不连续的情况, 或者分量载波来 自于不同频带的情况, 由于各分量载波具有不同的传输特性, 各分量载波 上的时间提前量可能互不相同; 即使各分量载波属于同一频带且在频带上 连续,如果各分量载波源自不同的射频拉远单元( RRU, Remote Radio Unit ), 或者为了增加小区覆盖, 各分量载波分别经由不同的中继器 (repeater )处 理, 则各分量载波上的时间提前量也可能互不相同。 LTE系统中, UE只工 作在一个载波上 (对于时分双工模式是一个载波, 对于频分双工模式包括 上行、 下行一对载波, 为描述方便, 这里简称一个载波), 仅需要维护一条 上行链路的上行同步, 而在载波聚合中, UE可以同时工作在多个分量载波 上, 并且这些分量载波的 TA有可能不同。 这种场景简称为多 TA ( MTA, Multiple TA )。 使用同一个 TA并有同样的下行时间参考的所有小区构成一 个 TA组(TA GROUP )。
如前所述, 在单 TA场景中, UE通过随机接入过程获得与基站之间的 上行同步。 随机接入过程可以由物理下行控制信道信令(PDCCH order )或 者 UE的媒体接入控制层(MAC, Medium Access Control )发起, 可选地, PDCCH order或者无线资源控制(RRC, Radio Resource Control )信令可以 为 UE分配专用随机接入前导( Random Access Preamble ), 则随机接入过程 为非基于竟争的方式; 否则 UE需要选择随机接入前导,则随机接入过程为 基于竟争的方式。 UE选择随机接入资源包括选择随机接入前导和物理随机 接入信道( PRACH, Physical Random Access Channel ) 的时频域资源等。
图 1 为基于竟争随机接入过程流程图, 如图 1 所示, 基于竟争 ( Contention based ) 的随机接入过程包括以下步骤:
步骤 101, UE 在上行通过随机接入信道 ( RACH , Random Access CHannel )发送随机接入前导 ( Random Access Preamble )0
步骤 102, 基站 (eNB ) 的媒体接入控制层 (MAC, Medium Access Control )生成随机接入响应 ( RAR, Random Access Response )消息, 并在 下行共享信道(DL-SCH, Downlink-Shared Channel )发送给 UE; 该 RAR 消息中至少包含随机接入前导标识 (RAPID , Random Access Preamble IDentifier )、时间调整信息( TA, Time Alignment )、初始上行授权 ( UL Grant, Uplink Grant )和临时小区 -无线网络临时标识( Temporary C-RNTI ); 该消 息通过在物理下行控制信道 ( PDCCH, Physical Downlink Control CHannel ) 上的随机接入-无线网络临时标识( RA-RNTI, Random Access-Radio Network Temporary Identifier )进行指示; UE需要在预定的一个接收窗口中收到这 个随机接入响应消息。
步骤 103, UE在上行共享传输信道( UL-SCH, Uplink-Shared Channel ) 少包含小区 -无线网络临时标识(C-RNTI, Cell- Radio Network Temporary Identifier ), 媒体接入控制元( MAC Control Element )或者包括竟争解决标 识 (Contention Resolution Identity ) 的公共控制逻辑信道业务数据单元 ( CCCH SDU ); 该消息的发送支持混合自动重传请求 (HARQ, Hybrid Automatic Retransmission re Quest )。
步骤 104, 基站在 DL-SCH 上发送竟争解决消息 ( Contention Resolution ); 该消息通过 PDCCH上的 C-RNTI或临时 C-RNTI进行指示, 可以包括竟争解决标识; 该消息的发送支持 HARQ。
图 2为基于非竟争随机接入过程流程图, 如图 2所示, 对于非竟争的 随机接入过程, 则没有竟争解决过程, 具体包括以下步骤:
步骤 201, UE在上行通过随机接入信道发送随机接入前导。
步骤 202,基站的媒体接入控制层生成随机接入响应消息, 并在下行共 享信道发送给 UE。
传统技术中随机接入过程只能在主小区进行, 不能在辅小区进行。 现有技术中, 在 MTA场景下, 为获得 SCell上 TA, UE必须在 Scell 上发送 RA preamble, 然后 UE在 PCell上接收对应的 RAR消息。 传统技术 定义当同一个子帧中 RA-RNTI 和 C-RNTI/半静态调度无线网络临时标识 ( SPS-RNTI, Semi Persistent Scheduling-Radio Network Temporary Identifier ) 被使用时, UE不需要解码那些用 C-RNTI/SPS-RNTI加扰做循环冗余码校 验(CRC, Cyclic Redundancy Check ) 的 PDCCH所指示的数据(在对应的 PDSCH上传输)。 这个定义在传统技术上是合理的, UE在 PCell上接收 RA-RNTI加扰的 RAR就往往意味着 UE与系统的无线链路质量不好, 因此 不需要有其他传输和接收过程。 因此, 不同的载波无法同时传输 /接收
RA-RNTI加扰和 C-RNTI/SPS-RNTI加扰的信息。 在多载波系统中, 由于引 入了 MTA场景, UE在 PCELL上接收 RA-RNTI加扰的 RAR如果对应的是 SCell的随机接入过程, 此时就和 UE与系统的无线链路质量不再相关了, 此时就有可能同时传输 /接收 RA-RNTI加扰和 C-RNTI/SPS-RNTI加扰的信 息。
针对上述问题, 目前尚未相关技术方案可供参考。 发明内容
有鉴于此, 本发明的主要目的在于提供一种基于载波聚合的信息传输 方法及装置, 能同时传输和接收 RA-RNTI加扰的承载有 RAR消息的物理 下行共享信道 ( PDSCH, Physical Downlink Shared Channel ) 和 C-RNTI/SPS-RNTI加扰的承载下行业务信息(DL-SCH )的 PDSCH中承载 的信息。
为达到上述目的, 本发明的技术方案是这样实现的:
一种基于载波聚合的信息传输方法, 包括:
用户设备 UE在主小区 PCell接收对应于随机接入过程的随机接入响应 RAR消息时, 判断是否同时在一个或多个辅小区 SCell中接收并解码承载 有下行数据的物理下行共享信道 PDSCH。
优选地,所述判断是否同时在一个或多个辅小区 SCell中接收并解码承 载有下行数据的 PDSCH, 包括: 所述 RAR消息对应于 SCell的随机接入过程时, 所述 UE搜索激活的 下行辅小区 DL SCell的集合中承载给所述 UE的 PDSCH并进行解码;所述 RAR 消息对应于 PCell 的随机接入过程时, 所述 UE 不进行 SCell上的 PDSCH的解码。
优选地,所述判断是否同时在一个或多个辅小区 SCell中接收并解码承 载有下行数据的 PDSCH, 包括:
所述 UE接收 RAR消息时,确定上行 PCell同步时,搜索激活的 DL SCell 集合中的 SCell上承载给所述 UE的 PDSCH并进行解码; 确定上行 PCell 不同步时, 所述 UE不进行 SCell上的 PDSCH的解码。
优选地, 所述方法还包括:
所述 UE根据在 SCell上发送的前导 Preamble时刻对应的随机接入无线 网络临时标识 RA-RNTI在 PCell上检测 RA-RNTI加扰的物理下行控制信道 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 SCell上接收 PDSCH时使用的小区无线网络临时标识 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的调度授 权 DL-Grant信息。
优选地, 所述方法还包括:
所述 UE解码 SCell的 PDSCH后, 确定 PCell的上行同步计时器 TAT 仍有效时,所述 UE的媒体接入混合自动重传请求 MAC HARQ实体向所述 UE的物理层发送对应于 SCell中的下行数据的反馈, 所述 UE的物理层将 反馈发送到网络侧。
优选地, 所述一个或多个 SCell与所述 PCell在同一个时间提前量 TA 组;
或者, 所述一个或多个 SCell与所述 PCell不在同一个 TA组。
一种基于载波聚合的信息传输方法, 包括: 控制站在 UE的 PCell发送与所述 UE在 SCell中随机接入过程对应的 RAR消息, 同时在一个或多个 SCell中发送下行数据; 所述 RAR消息使用 RA-RNTI加扰, 所述下行数据使用 C-RNTI/SPS-RNTI加扰。
优选地, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入过程时, 同时 发送对应 SCell随机接入的 RAR消息以及一个或多个 SCell中的下行数据。
优选地, 所述方法还包括:
所述控制站侦听物理上行控制信道 PUCCH接收所述 UE是否接收到下 行数据的反馈。
优选地, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入时, 侦听所述 PUCCH而接收 UE是否接收到下行数据的反馈。
优选地, 所述方法还包括:
所述控制站确定所述 UE的 PCell的 TAT有效时,侦听所述 PUCCH而 接收 UE是否接收到下行数据的反馈。
优选地, 所述控制站包括基站、 微基站、 家庭基站、 中继站。
一种基于载波聚合的信息传输方法, 包括:
UE在 PCell接收对应于随机接入过程的随机接入响应 RAR消息时,判 断是否同时在所述 PCell中接收并解码承载有下行数据的 PDSCH。
优选地,所述判断是否同时在所述 PCell中接收并解码承载有下行数据 的 PDSCH, 包括:
所述 RAR消息对应于 SCell的随机接入过程时,所述 UE搜索所述 PCell 上承载给所述 UE的 PDSCH并进行解码;所述 RAR消息对应于 PCell的随 机接入过程时, 所述 UE不进行所述 PCell上的 PDSCH的解码。
优选地,所述判断是否同时在所述 PCell中接收并解码承载有下行数据 的 PDSCH, 包括:
所述 UE接收 RAR消息时, 确定上行 PCell同步时, 搜索所述 PCell 上承载给所述 UE的 PDSCH并进行解码; 确定上行 PCell不同步时, 所述 UE不进行所述 PCell上的 PDSCH的解码。
优选地, 所述方法还包括:
所述 UE根据在 SCell上发送的前导 Preamble时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 PCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的 DL-Grant信息。
优选地, 所述方法还包括:
所述 UE解码 SCell的 PDSCH后, 确定 PCell的上行 TAT仍有效时, 数据的反馈, 所述 UE的物理层将反馈发送到网络侧。
一种基于载波聚合的信息传输方法, 包括:
控制站在 UE的 PCell发送与所述 UE在 SCell中随机接入过程对应的 RAR消息,同时在所述 PCell中发送下行数据;所述 RAR消息使用 RA-RNTI 加扰, 所述下行数据使用 C-RNTI/SPS-RNTI加扰。
优选地, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入过程时, 同时 发送对应 SCell随机接入的 RAR消息以及所述 PCell中的下行数据。
优选地, 所述方法还包括:
所述控制站侦听 PUCCH而接收所述 UE是否接收到下行数据的反馈。 优选地, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入时, 侦听所述 PUCCH而接收 UE是否接收到下行数据的反馈。
优选地, 所述方法还包括:
所述控制站确定所述 UE的 PCell的 TAT有效时,侦听所述 PUCCH而 接收 UE是否接收到下行数据的反馈。
优选地, 所述控制站包括基站、 微基站、 家庭基站、 中继站。
一种基于载波聚合的信息传输装置, 包括接收单元和判断单元, 其中: 接收单元, 配置为在 PCell接收对应于随机接入过程的 RAR消息; 判断单元,配置为判断是否同时在一个或多个 SCell中接收并解码承载 有下行数据的 PDSCH。
优选地, 所述装置还包括第一搜索解码单元;
所述判断单元确定所述 RAR消息对应于 SCell的随机接入过程时, 触 发所述第一搜索解码单元搜索激活的 DL SCell 的集合中承载给 UE 的 PDSCH并进行解码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第一搜索解码单元进行 SCell上的 PDSCH的解码。
优选地, 所述装置还包括第二搜索解码单元;
所述接收单元接收 RAR消息时,所述判断单元确定上行 PCell同步时, 触发所述第二搜索解码单元搜索激活的 DL SCell集合中的 SCell上承载给 所述 UE的 PDSCH并进行解码; 所述判断单元确定上行 PCell不同步时, 不触发所述第二搜索解码单元进行 SCell上的 PDSCH的解码。
优选地, 所述装置还包括:
检测解码单元, 配置为根据在 SCell 上发送的 Preamble 时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对 应的 PDSCH, 获取所述 RAR消息;
根据在 SCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的调度授权 DL-Grant信息。 一种基于载波聚合的信息传输装置, 包括加扰单元和发送单元, 其中: 加扰单元, 配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元, 配置为在 UE的 PCell发送所述 RAR消息, 同时在一个或 多个 SCell中发送下行数据。
优选地, 所述装置还包括:
确定单元,配置为确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述发送单元同时发送对应 SCell随机接入的 RAR消息以及一个或多 个 SCell中的下行数据。
一种基于载波聚合的信息传输装置, 包括接收单元和判断单元, 其中: 接收单元, 配置为在 PCell接收对应机接入过程的 RAR消息; 判断单元,配置为是否同时在所述 PCell中接收并解码承载有下行数据 的 PDSCH。
优选地, 所述装置还包括第一搜索解码单元;
所述判断单元确定所述 RAR消息对应于 SCell的随机接入过程时, 触 发所述第一搜索解码单元搜索所述 PCell上承载给 UE的 PDSCH并进行解 码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第一 搜索解码单元进行所述 PCell上的 PDSCH的解码。
优选地, 所述装置还包括第二搜索解码单元;
所述接收单元接收 RAR消息时,所述判断单元确定上行 PCell同步时, 触发所述第二搜索解码单元搜索所述 PCell上承载给所述 UE的 PDSCH并 进行解码; 所述判断单元确定上行 PCell不同步时, 不触发所述第二搜索解 码单元进行 SCell上的 PDSCH的解码。
优选地, 所述装置包括:
检测解码单元, 配置为根据在 SCell 上发送的 Preamble 时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对 应的 PDSCH, 获取所述 RAR消息;
根据在 PCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的 DL-Grant信息。
一种基于载波聚合的信息传输装置, 包括加扰单元和发送单元, 其中: 加扰单元, 配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元,配置为在 UE的 PCell发送所述 RAR消息,同时在所述 PCell 中发送下行数据。
优选地, 所述装置还包括:
确定单元,配置为确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述发送单元同时发送对应 SCell随机接入的 RAR消息以及一个或多 个 SCell中的下行数据。
本发明中, UE在主小区 PCell接收对应于随机接入过程的 RAR消息时, 判断是否同时在一个或多个 SCell中接收并解码承载有下行数据的 PDSCH。
RAR消息对应于 SCell的随机接入过程时, UE搜索激活的下行辅小区( DL SCell )的集合中承载给 UE的 PDSCH并进行解码; RAR消息对应于 PCell 的随机接入过程时, 所述 UE不进行 SCell上的 PDSCH的解码。 UE接收 RAR消息时,确定上行 PCell同步时, 搜索激活的 DL SCell集合中的 SCell 上承载给所述 UE的 PDSCH并进行解码; 确定上行 PCell不同步时, UE 不进行 SCell上的 PDSCH的解码。 或者, UE在 PCell接收对应机接入过程 的 RAR消息时, 判断是否同时在所述 PCell中接收并解码承载有下行数据 的 PDSCH。 RAR消息对应于 SCell的随机接入过程时, UE搜索 PCell上承 载给 UE的 PDSCH并进行解码; RAR消息对应于 PCell的随机接入过程时, UE不进行 PCell上的 PDSCH的解码。 UE接收 RAR消息时,确定上行 PCell 同步时, 搜索 PCell上承载给 UE的 PDSCH并进行解码; 确定上行 PCell 不同步时, UE不进行 PCell上的 PDSCH的解码。 本发明实现了同时传输 和接收 RA-RNTI加扰的承载有 RAR消息的 PDSCH和 C-RNTI/SPS-RNTI 加扰的承载下行业务信息 (DL-SCH ) 的 PDSCH中承载的信息。 附图说明
图 1为基于竟争随机接入过程流程图;
图 2为基于非竟争随机接入过程流程图;
图 3为本发明一实施例的基于载波聚合的信息传输方法的流程图; 图 4为本发明另一实施例的基于载波聚合的信息传输方法的流程图; 图 5 为本发明第一实施例的基于载波聚合的信息传输装置的组成结构 示意图;
图 6为本发明第二实施例的基于载波聚合的信息传输装置的组成结构 示意图;
图 7 为本发明第三实施例的基于载波聚合的信息传输装置的组成结构 示意图;
图 8 为本发明第四实施例的基于载波聚合的信息传输装置的组成结构 示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚明白, 以下举实施例并 参照附图, 对本发明进一步详细说明。
图 3 为本发明一实施例的基于载波聚合的信息传输方法的流程图, 如 图 3所示, 本示例的基于载波聚合的信息传输方法包括以下步骤:
步骤 301, 一个或多个 SCell向 UE发送下行数据; 其中, 所述下行数 据承载于 PDSCH中, 所述下行数据由 C-RNTI和 /或 SPS-RNTI加扰。 步骤 302, PCell向 UE发送随机接入响应 RAR消息, 该 RAR消息对 应于 SCell RACH, 并适用 RA-RNTI加扰。
图 4为本发明另一实施例的基于载波聚合的信息传输方法的流程图, 如图 4所示, 本示例的基于载波聚合的信息传输方法包括以下步骤:
步骤 401, PCell 向 UE发送下行数据; 其中, 所述下行数据承载于
PDSCH中, 所述下行数据由 C-RNTI和 /或 SPS-RNTI加扰。
步骤 402, PCell向 UE发送随机接入响应 RAR消息, 该 RAR消息对 应于 SCell RACH, 并适用 RA-RNTI加扰。
本发明中, 同时的含义意味着在同一个子帧 (subframe ) 中。
以下通过具体实例, 进一步阐明本发明技术方案的实质。
实例一
UE在 PCell接收对应随机接入过程的 RAR消息,判断是否可同时在一 个或多个 SCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否同时在一个或多个 SCell 中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH, 具体为:
判断 RAR消息是否对应 SCell的随机接入过程,如果是, UE根据激活 的 DL SCell的集合, 搜索所述集合中 SCell上给该 UE的 PDSCH并进行解 码; 如果不是, UE不进行 SCell上的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE根据激活的 DL SCell的集合, 搜索集合中 SCell上是否承载给该 UEPDSCH并进行解码; 如果不是, UE 不进行 SCell上的 PDSCH的解码。 上检测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所 述 RAR消息; 在 SCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH获得 PDSCH的调度授权 信息 (DL-Grant )。
所述一个或多个 SCell可以和 PCell在同一个 TA组, 也可以不在同一 个 TA组。
UE解码 SCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 SCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到基站。
实例二
基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息,判断 是否可同时在一个或多个 SCell中发送下行数据。 其中 PCell的 RAR消息 使用 RA-RNTI加扰, SCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接 收所述反馈。
判断是否可同时在一个或多个 SCell中发送下行数据, 具体包括: 基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数据之 前, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才同时发 送对应 SCell随机接入过程的 RAR消息以及一个或多个 SCell中的下行数 据。
基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数据之 后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在相应 的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell是否 为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相应的 上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例三 UE在 PCell接收对应随机接入过程的 RAR消息, 判断是否可同时在 PCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否可同时在 PCell 中接收并解码承载下行数据 (DL-SCH ) 的 PDSCH, 包括:
判断所述 RAR消息是否对应 SCell的随机接入过程, 如果是, 搜索所 述 PCell上给该 UE的 PDSCH并进行解码; 如果不是, UE不进行 PCell上 的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE搜索 PCell上是否有承载给该 UEPDSCH并进行解码; 如果不是, UE不进行 PCell上的 PDSCH的解码。
UE根据在 SCell上发送 Preamble时刻所对应的 RA-RNTI在 PCell上检 测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所述 RAR 消息; 在 PCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI 检测 C-RNTI/ SPS-RNTI 加扰的 PDCCH 获得 PDSCH 的调度授权信息 ( DL-Grant )。
UE解码 PCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 PCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到基站。
实例四
基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息,判断 是否可同时在 PCell 中发送下行数据。 其中 PCell 的所述 RAR 消息使用 RA-RNTI加扰, PCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接 收所述反馈。
判断是否可同时在 PCell中发送下行数据, 包括: 基站同时在 PCell中发送 RAR消息及下行数据之前,要判断所述 RAR 是否对应 SCell的随机接入过程。 如果是, 才同时发送对应 SCell随机接入 过程的 RAR消息以及 PCell中的下行数据。
基站同时在 PCell中发送 RAR消息及下行数据之后,要判断所述 RAR 是否对应 SCell的随机接入过程, 如果是, 才在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell是否 为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相应的 上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例五
UE在 PCell接收对应随机接入过程的 RAR消息,判断是否可同时在一 个或多个 SCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否同时在一个或多个 SCell 中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH, 具体为:
判断 RAR消息是否对应 SCell的随机接入过程,如果是, UE根据激活 的 DL SCell的集合, 搜索所述集合中 SCell上给该 UE的 PDSCH并进行解 码; 如果不是, UE不进行 SCell上的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE根据激活的 DL SCell的集合, 搜索集合中 SCell上是否承载给该 UEPDSCH并进行解码; 如果不是, UE 不进行 SCell上的 PDSCH的解码。 上检测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所 述 RAR消息; 在 SCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH获得 PDSCH的调度授权 信息 (DL-Grant )。
所述一个或多个 SCell可以和 PCell在同一个 TA组, 也可以不在同一 个 TA组。
UE解码 SCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 SCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到 Pico基站。
实例六
Pico基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息, 判断是否可同时在一个或多个 SCell中发送下行数据。 其中 PCell的 RAR 消息使用 RA-RNTI加扰, SCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
Pico基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在一个或多个 SCell中发送下行数据, 具体包括:
Pico基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数 据之前, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才同 时发送对应 SCell随机接入过程的 RAR消息以及一个或多个 SCell中的下 行数据。
Pico基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数 据之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在 相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
Pico基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例七
UE在 PCell接收对应随机接入过程的 RAR消息, 判断是否可同时在 PCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否可同时在 PCell 中接收并解码承载下行数据 (DL-SCH ) 的 PDSCH, 包括:
判断所述 RAR消息是否对应 SCell的随机接入过程, 如果是, 搜索所 述 PCell上给该 UE的 PDSCH并进行解码; 如果不是, UE不进行 PCell上 的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE搜索 PCell上是否有承载给该 UEPDSCH并进行解码; 如果不是, UE不进行 PCell上的 PDSCH的解码。
UE根据在 SCell上发送 Preamble时刻所对应的 RA-RNTI在 PCell上检 测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所述 RAR 消息; 在 PCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI 检测 C-RNTI/ SPS-RNTI 加扰的 PDCCH 获得 PDSCH 的调度授权信息 ( DL-Grant )。
UE解码 PCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 PCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到 Pico基站。
实例八
Pico基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息, 判断是否可同时在 PCell中发送下行数据。 其中 PCell的所述 RAR消息使 用 RA-RNTI加扰, PCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
Pico基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在 PCell中发送下行数据, 包括:
Pico基站同时在 PCell中发送 RAR消息及下行数据之前, 要判断所述 RAR是否对应 SCell的随机接入过程。 如果是, 才同时发送对应 SCell随机 接入过程的 RAR消息以及 PCell中的下行数据。
Pico基站同时在 PCell中发送 RAR消息及下行数据之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在相应的上行子帧中检 测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
Pico基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例九
UE在 PCell接收对应随机接入过程的 RAR消息,判断是否可同时在一 个或多个 SCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否同时在一个或多个 SCell 中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH, 具体为:
判断 RAR消息是否对应 SCell的随机接入过程,如果是, UE根据激活 的 DL SCell的集合, 搜索所述集合中 SCell上给该 UE的 PDSCH并进行解 码; 如果不是, UE不进行 SCell上的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE根据激活的 DL SCell的集合, 搜索集合中 SCell上是否承载给该 UEPDSCH并进行解码; 如果不是, UE 不进行 SCell上的 PDSCH的解码。 上检测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所 述 RAR消息; 在 SCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH获得 PDSCH的调度授权 信息 (DL-Grant )。 所述一个或多个 SCell可以和 PCell在同一个 TA组, 也可以不在同一 个 TA组。
UE解码 SCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 SCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到家庭基站 ( Femto或者 HeNB )。
实例十
家庭基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息, 判断是否可同时在一个或多个 SCell中发送下行数据。 其中 PCell的 RAR 消息使用 RA-RNTI加扰, SCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
家庭基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在一个或多个 SCell中发送下行数据, 具体包括: 家庭基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数 据之前, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才同 时发送对应 SCell随机接入过程的 RAR消息以及一个或多个 SCell中的下 行数据。
家庭基站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数 据之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在 相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
家庭基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例十一
UE在 PCell接收对应随机接入过程的 RAR消息, 判断是否可同时在 PCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否可同时在 PCell 中接收并解码承载下行数据 (DL-SCH ) 的 PDSCH, 包括:
判断所述 RAR消息是否对应 SCell的随机接入过程, 如果是, 搜索所 述 PCell上给该 UE的 PDSCH并进行解码; 如果不是, UE不进行 PCell上 的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE搜索 PCell上是否有承载给该 UEPDSCH并进行解码; 如果不是, UE不进行 PCell上的 PDSCH的解码。
UE根据在 SCell上发送 Preamble时刻所对应的 RA-RNTI在 PCell上检 测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所述 RAR 消息; 在 PCell上接收承载下行数据的 PDSCH时使用 C-RNTI/ SPS-RNTI 检测 C-RNTI/ SPS-RNTI 加扰的 PDCCH 获得 PDSCH 的调度授权信息 ( DL-Grant )。
UE解码 PCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 PCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到家庭基站。
实例十二
家庭基站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息, 判断是否可同时在 PCell中发送下行数据。 其中 PCell的所述 RAR消息使 用 RA-RNTI加扰, PCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
家庭基站在相应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在 PCell中发送下行数据, 包括:
家庭基站同时在 PCell中发送 RAR消息及下行数据之前, 要判断所述 RAR是否对应 SCell的随机接入过程。 如果是, 才同时发送对应 SCell随机 接入过程的 RAR消息以及 PCell中的下行数据。
家庭基站同时在 PCell中发送 RAR消息及下行数据之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在相应的上行子帧中检 测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
家庭基站在接收所述反馈 ( ACK/NACK )前检测所述 UE的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例十三
UE在 PCell接收对应随机接入过程的 RAR消息,判断是否可同时在一 个或多个 SCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。
判断是否同时在一个或多个 SCell 中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH, 具体为:
判断 RAR消息是否对应 SCell的随机接入过程,如果是, UE根据激活 的 DL SCell的集合, 搜索所述集合中 SCell上给该 UE的 PDSCH并进行解 码; 如果不是, UE不进行 SCell上的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE根据激活的 DL SCell的集合, 搜索集合中 SCell上是否承载给该 UEPDSCH并进行解码; 如果不是, UE 不进行 SCell上的 PDSCH的解码。 上检测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所 述 RAR 消息; 在 SCell 上接收承载下行数据的 PDSCH 时使用 C-RNTI/SPS-RNTI检测 C-RNTI/SPS-RNTI加扰的 PDCCH获得 PDSCH的 调度授权信息 (DL-Grant )。 所述一个或多个 SCell可以和 PCell在同一个 TA组, 也可以不在同一 个 TA组。
UE解码 SCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 SCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到中继站。
实例十四
中继站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息,判 断是否可同时在一个或多个 SCell中发送下行数据。 其中 PCell的 RAR消 息使用 RA-RNTI加扰, SCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
中继站在相应的上行子帧中检测反馈( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在一个或多个 SCell中发送下行数据, 具体包括: 中继站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数据 之前, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才同时 发送对应 SCell随机接入过程的 RAR消息以及一个或多个 SCell中的下行 数据。
中继站同时在 PCell及一个或多个 SCell中发送 RAR消息及下行数据 之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
中继站在接收所述反馈 ( ACK/NACK ) 前检测所述 UE 的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
实例十五
UE在 PCell接收对应随机接入过程的 RAR消息, 判断是否可同时在 PCell中接收并解码承载下行数据 ( DL-SCH ) 的 PDSCH。 判断是否可同时在 PCell 中接收并解码承载下行数据 (DL-SCH ) 的 PDSCH, 包括:
判断所述 RAR消息是否对应 SCell的随机接入过程, 如果是, 搜索所 述 PCell上给该 UE的 PDSCH并进行解码; 如果不是, UE不进行 PCell上 的 PDSCH的解码。
在接收 RAR消息时,判断 UE的上行 PCell是否为同步(即 PCell上行 同步计时器 TAT是否有效), 如果同步, UE搜索 PCell上是否有承载给该 UEPDSCH并进行解码; 如果不是, UE不进行 PCell上的 PDSCH的解码。
UE根据在 SCell上发送 Preamble时刻所对应的 RA-RNTI在 PCell上检 测 RA-RNTI加扰的 PDCCH并解码该 PDCCH对应的 PDSCH获取所述 RAR 消息; 在 PCell上接收承载下行数据的 PDSCH时使用 C-RNTI/SPS-RNTI 检测 C-RNTI/SPS-RNTI 加扰的 PDCCH 获得 PDSCH 的调度授权信息 ( DL-Grant )。
UE解码 PCell的 PDSCH后, 如果 PCell上行同步计时器( TAT )仍有 效, UE MAC HARQ 实体正常发送对应 PCell 中的下行数据的反馈 ( ACK/NACK )到物理层, UE的物理层反馈所述 ACK/NACK到中继站。
实例十六
中继站在 UE的 PCell发送 UE在 SCell随机接入对应的 RAR消息,判 断是否可同时在 PCell中发送下行数据。 其中 PCell的所述 RAR消息使用 RA-RNTI加扰, PCell的下行数据使用 C-RNTI/SPS-RNTI加扰。
中继站在相应的上行子帧中检测反馈( ACK/NACK )对应的 PUCCH 接收所述反馈。
判断是否可同时在 PCell中发送下行数据, 包括:
中继站同时在 PCell 中发送 RAR 消息及下行数据之前, 要判断所述 RAR是否对应 SCell的随机接入过程。 如果是, 才同时发送对应 SCell随机 接入过程的 RAR消息以及 PCell中的下行数据。
中继站同时在 PCell 中发送 RAR 消息及下行数据之后, 要判断所述 RAR是否对应 SCell的随机接入过程, 如果是, 才在相应的上行子帧中检 测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
中继站在接收所述反馈 ( ACK/NACK ) 前检测所述 UE 的上行 PCell 是否为同步(即 PCell上行同步计时器 TAT是否有效), 如果同步, 才在相 应的上行子帧中检测反馈 ( ACK/NACK )对应的 PUCCH接收所述反馈。
图 5 为本发明第一实施例的基于载波聚合的信息传输装置的组成结构 示意图, 如图 5 所示, 本示例的基于载波聚合的信息传输装置包括接收单 元 50和判断单元 51, 其中:
接收单元 50, 配置为在 PCell接收对应于随机接入过程的 RAR消息; 判断单元 51, 配置为判断是否同时在一个或多个 SCell中接收并解码 承载有下行数据的 PDSCH。
在图 5 所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括第一搜索解码单元(图 5中未示出);
所述判断单元 51确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述第一搜索解码单元搜索激活的 DL SCell 的集合中承载给 UE 的 PDSCH并进行解码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第一搜索解码单元进行 SCell上的 PDSCH的解码。
在图 5 所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括第二搜索解码单元(图 5中未示出);
所述接收单元 50接收 RAR消息时, 所述判断单元 51确定上行 PCell 同步时, 触发所述第二搜索解码单元搜索激活的 DL SCell集合中的 SCell 上承载给所述 UE的 PDSCH并进行解码; 所述判断单元确定上行 PCell不 同步时, 不触发所述第二搜索解码单元进行 SCell上的 PDSCH的解码。 在图 5 所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括:
检测解码单元(图 5中未示出),配置为根据在 SCell上发送的 Preamble 时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 SCell 上接收 PDSCH 时使用的 C-RNTI/SPS-RNTI 检测 C-RNTI/SPS-RNTI加扰的 PDCCH, 获得 PDSCH的调度授权 DL-Grant信 息。
本示例所示的基于载波聚合的信息传输装置适用于 UE中。
本领域技术人员应当理解, 图 5 中所示的基于载波聚合的信息传输装 置中的各处理单元的实现功能可参照前述基于载波聚合的信息传输方法的 相关描述而理解。 本领域技术人员应当理解, 图 5 所示的基于载波聚合的 信息传输装置中各处理单元的功能可通过运行于处理器上的程序而实现, 也可通过具体的逻辑电路而实现。
图 6为本发明第二实施例的基于载波聚合的信息传输装置的组成结构 示意图, 如图 6所示, 本示例的基于载波聚合的信息传输装置加扰单元 60 和发送单元 61, 其中:
加扰单元 60,配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元 61, 配置为在 UE的 PCell发送所述 RAR消息, 同时在一个 或多个 SCell中发送下行数据。
在图 6所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括:
确定单元(图 6 中未示出), 配置为确定所述 RAR消息对应于 SCell 的随机接入过程时, 触发所述发送单元 60同时发送对应 SCell随机接入的 RAR消息以及一个或多个 SCell中的下行数据。
本示例所示的基于载波聚合的信息传输装置适用于基站中。
本领域技术人员应当理解, 图 6 中所示的基于载波聚合的信息传输装 置中的各处理单元的实现功能可参照前述基于载波聚合的信息传输方法的 相关描述而理解。 本领域技术人员应当理解, 图 6所示的基于载波聚合的 信息传输装置中各处理单元的功能可通过运行于处理器上的程序而实现, 也可通过具体的逻辑电路而实现。
图 7 为本发明第三实施例的基于载波聚合的信息传输装置的组成结构 示意图, 如图 7 所示, 本示例的基于载波聚合的信息传输装置包括接收单 元 70和判断单元 71, 其中:
接收单元 70, 配置为在 PCell接收对应机接入过程的 RAR消息; 判断单元 71, 配置为是否同时在所述 PCell中接收并解码承载有下行 数据的 PDSCH。
在图 7所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括第一搜索解码单元(图 7中未示出);
所述判断单元 71确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述第一搜索解码单元搜索所述 PCell上承载给 UE的 PDSCH并进行 解码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第 一搜索解码单元进行所述 PCell上的 PDSCH的解码。
在图 7所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括第二搜索解码单元(图 7中未示出);
所述接收单元 70接收 RAR消息时, 所述判断单元 71确定上行 PCell 同步时, 触发所述第二搜索解码单元搜索所述 PCell上承载给所述 UE 的 PDSCH并进行解码; 所述判断单元确定上行 PCell不同步时, 不触发所述 第二搜索解码单元进行 SCell上的 PDSCH的解码。 在图 7所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括:
检测解码单元(图 7中未示出),配置为根据在 SCell上发送的 Preamble 时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 PCell 上接收 PDSCH 时使用的 C-RNTI/SPS-RNTI 检测 C-RNTI/SPS-RNTI加扰的 PDCCH, 获得 PDSCH的 DL-Grant信息。
本示例所示的基于载波聚合的信息传输装置适用于 UE中。
本领域技术人员应当理解, 图 7 中所示的基于载波聚合的信息传输装 置中的各处理单元的实现功能可参照前述基于载波聚合的信息传输方法的 相关描述而理解。 本领域技术人员应当理解, 图 7所示的基于载波聚合的 信息传输装置中各处理单元的功能可通过运行于处理器上的程序而实现, 也可通过具体的逻辑电路而实现。
图 8 为本发明第四实施例的基于载波聚合的信息传输装置的组成结构 示意图, 如图 8 所示, 本示例的基于载波聚合的信息传输装置包括加扰单 元 80和发送单元 81, 其中:
加扰单元 80,配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元 81, 配置为在 UE的 PCell发送所述 RAR消息, 同时在所述 PCell中发送下行数据。
在图 8所示的基于载波聚合的信息传输装置的基础上, 本示例的基于 载波聚合的信息传输装置还包括:
确定单元(图 8 中未示出), 配置为确定所述 RAR消息对应于 SCell 的随机接入过程时, 触发所述发送单元 80同时发送对应 SCell随机接入的 RAR消息以及一个或多个 SCell中的下行数据。 本示例所示的基于载波聚合的信息传输装置适用于基站中。
本领域技术人员应当理解, 图 8 中所示的基于载波聚合的信息传输装 置中的各处理单元的实现功能可参照前述基于载波聚合的信息传输方法的 相关描述而理解。 本领域技术人员应当理解, 图 8所示的基于载波聚合的 信息传输装置中各处理单元的功能可通过运行于处理器上的程序而实现, 也可通过具体的逻辑电路而实现。
本发明实施例中, 发送单元及接收单元可通过天线系统实现。 确定单 元、 加扰单元、 检测解码单元、 判断单元等, 可通过处理器、 微处理器、 FPGA、 DSP等实现。
显然, 本领域的技术人员应该明白, 上述的本发明的各处理单元或各 步骤可以用通用的计算装置来实现, 其可以集中在单个的计算装置上, 或 者分布在多个计算装置所组成的网络上, 可选地, 其可以用计算装置可执 行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来 执行, 或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模 块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任何特 定的硬件和软件结合。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种基于载波聚合的信息传输方法, 包括:
用户设备 UE在主小区 PCell接收对应于随机接入过程的随机接入响应 RAR消息时, 判断是否同时在一个或多个辅小区 SCell中接收并解码承载 有下行数据的物理下行共享信道 PDSCH。
2、 根据权利要求 1所述的方法, 其中, 所述判断是否同时在一个或多 个辅小区 SCell中接收并解码承载有下行数据的 PDSCH, 包括:
所述 RAR消息对应于 SCell的随机接入过程时, 所述 UE搜索激活的 下行辅小区 DL SCell的集合中承载给所述 UE的 PDSCH并进行解码;所述 RAR 消息对应于 PCell 的随机接入过程时, 所述 UE 不进行 SCell上的 PDSCH的解码。
3、 根据权利要求 1所述的方法, 其中, 所述判断是否同时在一个或多 个辅小区 SCell中接收并解码承载有下行数据的 PDSCH, 包括:
所述 UE接收 RAR消息时,确定上行 PCell同步时,搜索激活的 DL SCell 集合中的 SCell上承载给所述 UE的 PDSCH并进行解码; 确定上行 PCell 不同步时, 所述 UE不进行 SCell上的 PDSCH的解码。
4、 根据权利要求 1至 3任一项所述的方法, 其中, 所述方法还包括: 所述 UE根据在 SCell上发送的前导 Preamble时刻对应的随机接入无线 网络临时标识 RA-RNTI在 PCell上检测 RA-RNTI加扰的物理下行控制信道 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 SCell上接收 PDSCH时使用的小区无线网络临时标识 C-RNTI/ 半静态调度无线网络临时标识 SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的调度授权 DL-Grant信息。
5、 根据权利要求 4所述的方法, 其中, 所述方法还包括:
所述 UE解码 SCell的 PDSCH后, 确定 PCell的上行同步计时器 TAT 仍有效时,所述 UE的媒体接入混合自动重传请求 MAC HARQ实体向所述 UE的物理层发送对应于 SCell中的下行数据的反馈, 所述 UE的物理层将 反馈发送到网络侧。
6、 根据权利要求 4所述的方法, 其中, 所述一个或多个 SCell与所述 PCell在同一个时间提前量 TA组;
或者, 所述一个或多个 SCell与所述 PCell不在同一个 TA组。
7、 一种基于载波聚合的信息传输方法, 包括:
控制站在 UE的 PCell发送与所述 UE在 SCell中随机接入过程对应的 RAR消息, 同时在一个或多个 SCell中发送下行数据; 所述 RAR消息使用 RA-RNTI加扰, 所述下行数据使用 C-RNTI/SPS-RNTI加扰。
8、 根据权利要求 7所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入过程时, 同时 发送对应 SCell随机接入的 RAR消息以及一个或多个 SCell中的下行数据。
9、 根据权利要求 7所述的方法, 其中, 所述方法还包括:
所述控制站侦听物理上行控制信道 PUCCH接收所述 UE是否接收到下 行数据的反馈。
10、 根据权利要求 9所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入时, 侦听所述 PUCCH而接收 UE是否接收到下行数据的反馈。
11、 根据权利要求 9所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 UE的 PCell的 TAT有效时,侦听所述 PUCCH而 接收 UE是否接收到下行数据的反馈。
12、 根据权利要求 7至 11任一项所述的方法, 其中, 所述控制站包括 基站、 微基站、 家庭基站、 中继站。
13、 一种基于载波聚合的信息传输方法, 包括: UE在 PCell接收对应于随机接入过程的随机接入响应 RAR消息时,判 断是否同时在所述 PCell中接收并解码承载有下行数据的 PDSCH。
14、根据权利要求 13所述的方法,其中,所述判断是否同时在所述 PCell 中接收并解码承载有下行数据的 PDSCH, 包括:
所述 RAR消息对应于 SCell的随机接入过程时,所述 UE搜索所述 PCell 上承载给所述 UE的 PDSCH并进行解码;所述 RAR消息对应于 PCell的随 机接入过程时, 所述 UE不进行所述 PCell上的 PDSCH的解码。
15、根据权利要求 13所述的方法,其中,所述判断是否同时在所述 PCell 中接收并解码承载有下行数据的 PDSCH, 包括:
所述 UE接收 RAR消息时, 确定上行 PCell同步时, 搜索所述 PCell 上承载给所述 UE的 PDSCH并进行解码; 确定上行 PCell不同步时, 所述 UE不进行所述 PCell上的 PDSCH的解码。
16、 根据权利要求 13至 15任一项所述的方法, 其中, 所述方法还包 括:
所述 UE根据在 SCell上发送的前导 Preamble时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对应的 PDSCH, 获取所述 RAR消息;
根据在 PCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的 DL-Grant信息。
17、 根据权利要求 16所述的方法, 其中, 所述方法还包括:
所述 UE解码 SCell的 PDSCH后, 确定 PCell的上行 TAT仍有效时, 数据的反馈, 所述 UE的物理层将反馈发送到网络侧。
18、 一种基于载波聚合的信息传输方法, 包括:
控制站在 UE的 PCell发送与所述 UE在 SCell中随机接入过程对应的 RAR消息,同时在所述 PCell中发送下行数据;所述 RAR消息使用 RA-RNTI 加扰, 所述下行数据使用 C-RNTI/SPS-RNTI加扰。
19、 根据权利要求 18所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入过程时, 同时 发送对应 SCell随机接入的 RAR消息以及所述 PCell中的下行数据。
20、 根据权利要求 19所述的方法, 其中, 所述方法还包括:
所述控制站侦听 PUCCH而接收所述 UE是否接收到下行数据的反馈。
21、 根据权利要求 20所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 RAR消息对应于 SCell的随机接入时, 侦听所述 PUCCH而接收 UE是否接收到下行数据的反馈。
22、 根据权利要求 21所述的方法, 其中, 所述方法还包括:
所述控制站确定所述 UE的 PCell的 TAT有效时,侦听所述 PUCCH而 接收 UE是否接收到下行数据的反馈。
23、 根据权利要求 18至 22任一项所述的方法, 其中, 所述控制站包 括基站、 微基站、 家庭基站、 中继站。
24、 一种基于载波聚合的信息传输装置, 包括接收单元和判断单元, 其中:
接收单元, 配置为在 PCell接收对应于随机接入过程的 RAR消息; 判断单元,配置为判断是否同时在一个或多个 SCell中接收并解码承载 有下行数据的 PDSCH。
25、 根据权利要求 24所述的装置, 其中, 所述装置还包括第一搜索解 码单元;
所述判断单元确定所述 RAR消息对应于 SCell的随机接入过程时, 触 发所述第一搜索解码单元搜索激活的 DL SCell 的集合中承载给 UE 的 PDSCH并进行解码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第一搜索解码单元进行 SCell上的 PDSCH的解码。
26、 根据权利要求 24所述的装置, 其中, 所述装置还包括第二搜索解 码单元;
所述接收单元接收 RAR消息时,所述判断单元确定上行 PCell同步时, 触发所述第二搜索解码单元搜索激活的 DL SCell集合中的 SCell上承载给 所述 UE的 PDSCH并进行解码; 所述判断单元确定上行 PCell不同步时, 不触发所述第二搜索解码单元进行 SCell上的 PDSCH的解码。
27、 根据权利要求 24至 26任一项所述的装置, 其中, 所述装置还包 括:
检测解码单元, 配置为根据在 SCell 上发送的 Preamble 时刻对应的 RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对 应的 PDSCH, 获取所述 RAR消息;
根据在 SCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的调度授权 DL-Grant信息。
28、 一种基于载波聚合的信息传输装置, 包括加扰单元和发送单元, 其中:
加扰单元, 配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元, 配置为在 UE的 PCell发送所述 RAR消息, 同时在一个或 多个 SCell中发送下行数据。
29、 根据权利要求 28所述的装置, 其中, 所述装置还包括:
确定单元,配置为确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述发送单元同时发送对应 SCell随机接入的 RAR消息以及一个或多 个 SCell中的下行数据。
30、 一种基于载波聚合的信息传输装置, 包括接收单元和判断单元, 其中:
接收单元, 配置为在 PCell接收对应机接入过程的 RAR消息; 判断单元,配置为是否同时在所述 PCell中接收并解码承载有下行数据 的 PDSCH。
31、 根据权利要求 30所述的装置, 其中, 所述装置还包括第一搜索解 码单元;
所述判断单元确定所述 RAR消息对应于 SCell的随机接入过程时, 触 发所述第一搜索解码单元搜索所述 PCell上承载给 UE的 PDSCH并进行解 码, 确定所述 RAR消息对应于 PCell的随机接入过程时, 不触发所述第一 搜索解码单元进行所述 PCell上的 PDSCH的解码。
32、 根据权利要求 30所述的装置, 其中, 所述装置还包括第二搜索解 码单元;
所述接收单元接收 RAR消息时,所述判断单元确定上行 PCell同步时, 触发所述第二搜索解码单元搜索所述 PCell上承载给所述 UE的 PDSCH并 进行解码; 所述判断单元确定上行 PCell不同步时, 不触发所述第二搜索解 码单元进行 SCell上的 PDSCH的解码。
33、 根据权利要求 30至 32任一项所述的装置, 其中, 所述装置包括: 检测解码单元, 配置为根据在 SCell 上发送的 Preamble 时刻对应的
RA-RNTI在 PCell上检测 RA-RNTI加扰的 PDCCH并解码所述 PDCCH对 应的 PDSCH, 获取所述 RAR消息;
根据在 PCell上接收 PDSCH时使用的 C-RNTI/ SPS-RNTI检测 C-RNTI/ SPS-RNTI加扰的 PDCCH, 获得 PDSCH的 DL-Grant信息。
34、 一种基于载波聚合的信息传输装置, 包括加扰单元和发送单元, 其中:
加扰单元, 配置为将与所述 UE在 SCell中随机接入过程对应的 RAR 消息使用 RA-RNTI加扰, 将所述下行数据使用 C-RNTI/SPS-RNTI加扰; 发送单元,配置为在 UE的 PCell发送所述 RAR消息,同时在所述 PCell 中发送下行数据。
35、 根据权利要求 34所述的装置, 其中, 所述装置还包括:
确定单元,配置为确定所述 RAR消息对应于 SCell的随机接入过程时, 触发所述发送单元同时发送对应 SCell随机接入的 RAR消息以及一个或多 个 SCell中的下行数据。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020143615A1 (zh) * 2019-01-07 2020-07-16 中国移动通信有限公司研究院 小区无线网络临时标识的配置方法及设备
CN114727395A (zh) * 2021-01-06 2022-07-08 维沃移动通信有限公司 确定下行控制信息比特的方法、装置和通信设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105188109B (zh) * 2015-09-30 2018-11-13 武汉虹信通信技术有限责任公司 一种在大于5载波聚合场景中PUCCH SCell的选择方法
CN108809547B (zh) * 2017-05-05 2020-09-01 维沃移动通信有限公司 一种数据传输方法、基站及终端
WO2019028793A1 (zh) 2017-08-10 2019-02-14 华为技术有限公司 随机接入前导码传输方法及装置
CN110753395B (zh) * 2018-07-23 2022-07-05 成都鼎桥通信技术有限公司 一种信道资源分配方法和装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010068011A2 (en) * 2008-12-08 2010-06-17 Lg Electronics Inc. Method of transmitting and receiving physical downlink shared channel in wireless communication system
CN102202415A (zh) * 2011-05-18 2011-09-28 中兴通讯股份有限公司 一种物理随机接入信道的传输方法和系统
CN102238754A (zh) * 2011-07-12 2011-11-09 电信科学技术研究院 一种辅小区上非竞争随机接入的方法和设备
CN102340885A (zh) * 2011-11-07 2012-02-01 电信科学技术研究院 随机接入响应消息的传输载波指示、确定方法及设备
CN102595634A (zh) * 2012-01-31 2012-07-18 普天信息技术研究院有限公司 一种载波聚合中接收随机接入响应信息的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8842609B2 (en) * 2010-10-21 2014-09-23 Lg Electronics Inc. Method and apparatus for transmitting ACK/NACK information in multicarrier-supporting wireless communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010068011A2 (en) * 2008-12-08 2010-06-17 Lg Electronics Inc. Method of transmitting and receiving physical downlink shared channel in wireless communication system
CN102202415A (zh) * 2011-05-18 2011-09-28 中兴通讯股份有限公司 一种物理随机接入信道的传输方法和系统
CN102238754A (zh) * 2011-07-12 2011-11-09 电信科学技术研究院 一种辅小区上非竞争随机接入的方法和设备
CN102340885A (zh) * 2011-11-07 2012-02-01 电信科学技术研究院 随机接入响应消息的传输载波指示、确定方法及设备
CN102595634A (zh) * 2012-01-31 2012-07-18 普天信息技术研究院有限公司 一种载波聚合中接收随机接入响应信息的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020143615A1 (zh) * 2019-01-07 2020-07-16 中国移动通信有限公司研究院 小区无线网络临时标识的配置方法及设备
CN114727395A (zh) * 2021-01-06 2022-07-08 维沃移动通信有限公司 确定下行控制信息比特的方法、装置和通信设备

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