WO2014157923A1 - Procédé et appareil de transmission d'harq-ack dans un système d'agrégation de porteuses inter-enb - Google Patents

Procédé et appareil de transmission d'harq-ack dans un système d'agrégation de porteuses inter-enb Download PDF

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Publication number
WO2014157923A1
WO2014157923A1 PCT/KR2014/002518 KR2014002518W WO2014157923A1 WO 2014157923 A1 WO2014157923 A1 WO 2014157923A1 KR 2014002518 W KR2014002518 W KR 2014002518W WO 2014157923 A1 WO2014157923 A1 WO 2014157923A1
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Prior art keywords
enb
subframe
scell
harq
pcell
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PCT/KR2014/002518
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English (en)
Inventor
Jingxing Fu
Yingyang Li
Chengjun Sun
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Samsung Electronics Co., Ltd.
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Publication of WO2014157923A1 publication Critical patent/WO2014157923A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present invention relates to wireless communication technologies, and more particularly, to a method and apparatus for transmitting hybrid automatic repeat-request acknowledgement (HARQ-ACK) information in an Inter-eNB Carrier Aggregation (Inter-eNB CA) system.
  • HARQ-ACK hybrid automatic repeat-request acknowledgement
  • the maximum bandwidth supported by each cell is 20MHz.
  • the Carrier Aggregation technique is introduced into a LTE-Advanced system.
  • the Carrier Aggregation technique the UE can communicate simultaneously with cells which are controlled by the same evolved NodeB (eNB) and which work at different carrier frequencies, the maximum transmission bandwidth reaches 100MHz, and uplink and downlink peak rates of the UE may be increased by several times in principle.
  • eNB evolved NodeB
  • PCell Primary Cell
  • SCell Secondary Cell
  • the Inter-eNB Carrier Aggregation technique may be a trend of LTE-Advanced development.
  • the Inter-eNB Carrier Aggregation technique means that cells transmitting data simultaneously to the same UE need not belong to one eNB, that is, as shown in Figure 1, the cells may belong to different eNBs.
  • the eNB covering Pcells is called a Pcell eNB, and the eNB covering only Scells is called a Scell eNB.
  • the Carrier Aggregation technique can still be used to increase working bandwidth of the UE and thereby increase peak transmission rate of the UE.
  • the difference between the Inter-eNB Carrier Aggregation technique and the existing one-eNB Carrier Aggregation technique also raises new issues to the application of the Carrier Aggregation technique.
  • the HARQ-ACK feedback information is transmitted only in the Pcells at the present, and resources occupied by the transmission of HARQ-ACK feedback information are obtained by mapping of the lowest Control Channel Element (CCE) index used by a Physical Downlink Control Channel (PDCCH) scheduling a Physical Downlink Shared Channel (PDSCH), or are indicated in a HARQ-ACK resource indicator (ARI) field on the PDCCH scheduling the PDSCH.
  • CCE Control Channel Element
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • the Inter-eNB system PDSCH data transmitted in cells covered by different eNBs are scheduled by different eNBs, and the lowest CCE index information used by the PDCCH scheduled by different eNBs as well as the resources indicated in the ARI field on the PDCCH scheduling the PDSCH can not be shared between different eNBs, i.e., one eNB does not know the lowest CCE index information used by the PDCCH scheduled by another eNB, or the resources indicated in the ARI field on the PDCCH scheduling the PDSCH. Therefore, the existing transmission technique of HARQ-ACK feedback information can not be used normally in the Inter-eNB system.
  • the present application provides a method and UE for transmitting hybrid automatic repeat-request acknowledgement (HARQ-ACK) information in two kinds of Inter-eNB Carrier Aggregation (Inter-eNB CA) systems, which can realize transmission of the HARQ-ACK) information in the Inter-eNB CA) systems.
  • HARQ-ACK hybrid automatic repeat-request acknowledgement
  • An embodiment of the present application provides a method for transmitting Hybrid Automatic Repeat-Request Acknowledgement (HARQ-ACK) feedback information in an Inter-eNB Carrier Aggregation (Inter-eNB CA) system.
  • the method includes:
  • UE User Equipment
  • Pcell eNB Primary cell eNB
  • PDSCH Physical Downlink Shared Channel
  • the Pcell and a Scell designated by each Scell eNB work in a Time Division Duplex (TDD) mode; and
  • the UE receives the PDSCH data of each cell sent by the Pcell eNB on a subframe k, and receives the PDSCH data of each cell sent by a Scell eNB c on a subframe
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one Scell eNB; and
  • the method further includes: transmitting, by the Pcell and a Scell designated by the Scell eNB, the HARQ-ACK feedback information on one or more subframes of subframes 2, 3, 7 and 8;
  • TDD uplink and downlink configurations of the Pcell or the Scell designated by the Scell eNB are 1, 2, 4 and 5, a HARQ-ACK timing relation of the Pcell or the Scell designated by the Scell eNB follows a HARQ-ACK relation of the TDD uplink and downlink configurations of the Pcell or the Scell designated by the Scell eNB; if the TDD uplink and downlink configurations of the Pcell or the Scell designated by the Scell eNB are 3, the HARQ-ACK timing relation of the Pcell or the Scell designated by the Scell eNB follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 4; if the TDD uplink and downlink configurations of the Pcell or the Scell designated by the Scell eNB are 0 and 6, the HARQ-ACK timing relation of the Pcell or the Scell designated by the Scell eNB follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 1.
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one to four Scell eNBs; and
  • the method further includes: transmitting, by the Pcell and a Scell designated by each Scell eNB, the HARQ-ACK feedback information on one or more of subframes 2 and 7;
  • TDD uplink and downlink configurations of the Pcell or the Scell designated by said each Scell eNB are 0, 1, 2 and 6, a HARQ-ACK timing relation of the Pcell or the Scell designated by said each Scell eNB follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 2; if the TDD uplink and downlink configurations of the Pcell or the Scell designated by each Scell eNB are 3, 4 and 5, the HARQ-ACK timing relation of the Pcell or the Scell designated by each Scell eNB follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 5.
  • At least one of the Pcell and a Scell designated by each Scell eNB work in a Time Division Duplex (TDD) mode, and at least one of the Pcell and the Scell designated by each Scell eNB work in a Frequency Division Duplex (FDD) mode; and
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the UE transmits the HARQ-ACK feedback information of the Pcell and the Scell designated by each Scell eNB on different subframes.
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one Scell eNB; wherein a cell working in the TDD mode of the Pcell and a Scell designated by the Scell eNB transmits the HARQ-ACK feedback information on one or more of subframes 2, 3, 7 and 8, and wherein a cell working in the FDD mode of the Pcell and a Scell designated by the Scell eNB transmits the HARQ-ACK feedback information on one or more of subframes 9, 0, 1 4 and 5;
  • TDD uplink and downlink configurations of the cell working in the TDD mode are 1, 2, 4 and 5
  • a HARQ-ACK timing relation of the cell working in the TDD mode follows a HARQ-ACK relation of the TDD uplink and downlink configurations of the cell working in the TDD mode
  • the HARQ-ACK timing relation of the cell working in the TDD mode follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 4
  • the HARQ-ACK timing relation of the cell working in the TDD mode follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 1
  • TDD uplink and downlink configurations of the cell working in the TDD mode are 1, 2, 4 and 5
  • a timing relation of the cell working in the FDD mode is that: a subframe 8 of a radio frame n-1 of the cell working in the FDD mode and a subframe 9 of the radio frame n-1 of the cell working in the FDD mode transmit the HARQ-ACK feedback information on a subframe 4 of a radio frame n, a subframe 0 of the radio frame n and a subframe 1 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 5 of the radio frame n, a subframe 2 of the radio frame n and a subframe 3 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 9 of the radio frame n, the subframe 4 of the radio frame n and the subframe 5 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 0 of a radio frame n+1, and a subframe 6 of the radio frame n and a subframe 7 of the radio frame n transmit the HARQ-ACK feedback information on
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one to four Scell eNBs; wherein a cell working in the TDD mode of the Pcell and a Scell designated by each Scell eNB transmits the HARQ-ACK feedback information on one or more of subframes 2 and 7, and a cell working in the FDD mode of the Pcell and the Scell designated by each Scell eNB transmits the HARQ-ACK feedback information on subframes N1 and N2, wherein
  • 5,N1 ⁇ 2, and N1 of each cell is different from each other;
  • TDD uplink and downlink configurations of the cell working in the TDD mode are 0, 1, 2 and 6, a HARQ-ACK timing relation of the cell working in the TDD mode follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 2; if the TDD uplink and downlink configurations of the cell working in the TDD mode are 3, 4 and 5, the HARQ-ACK timing relation of the cell working in the TDD mode follows a HARQ-ACK timing relation of the TDD uplink and downlink configuration 5;
  • the cell working in the FDD mode follows a HARQ-ACK timing relation that HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N1 is transmitted on the subframe N1, and that HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N2 is transmitted on the subframe N2.
  • the Pcell and a Scell designated by each Scell eNB work in a Frequency Division Duplex (FDD) mode;
  • FDD Frequency Division Duplex
  • the UE transmits the HARQ-ACK feedback information of the Pcell and the Scell designated by each Scell eNB on different subframes.
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one Scell eNB;
  • one cell of the Pcell and a Scell designated by the Scell eNB transmits the HARQ-ACK feedback information on subframes 2, 3, 6, 7 and 8, and another cell transmits the HARQ-ACK feedback information on subframes 9, 0, 1, 4 and 5;
  • the one cell follows a HARQ-ACK timing relation that: a subframe 9 of a radio frame n-1 and a subframe 0 of a radio frame n transmit the HARQ-ACK feedback information on a subframe 6 of the radio frame n, a subframe 1 of the radio frame n and a subframe 2 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 7 of the radio frame n, a subframe 3 of the radio frame n and a subframe 4 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 8 of the radio frame n, a subframe 5 of the radio frame n and a subframe 6 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 2 of a radio subframe n+1, and the subframe 7 of the radio frame n and the subframe 8 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 3 of the radio frame n+1;
  • a subframe 8 of a radio frame n-1 and a subframe 9 of the radio frame n-1 transmit the HARQ-ACK feedback information on a subframe 4 of a radio frame n
  • a subframe 0 of the radio frame n and a subframe 1 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 5 of the radio frame n
  • a subframe 2 of the radio frame n and a subframe 3 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 9 of a radio frame n+1
  • the subframe 4 of the radio frame n and the subframe 5 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 0 of the radio subframe n+1
  • a subframe 6 of the radio frame n and a subframe 7 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 1 of the radio frame n+1.
  • eNBs involved in the Inter-eNB carrier aggregation are one Pcell eNB and one to four Scell eNBs;
  • the Pcell and a Scell designated by each Scell eNB transmits the HARQ-ACK feedback information on subframes N3 and N4, wherein
  • 5,where N3 of each cell is different from each other;
  • HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N3 is transmitted on the subframe N3
  • HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N4 is transmitted on the subframe N4.
  • a first subframe of the two subframes uses a shortened Physical Uplink Control Channel (PUCCH) transmission format if tail of the first subframe is overlapped with head of a second subframe of the two subframes.
  • PUCCH Physical Uplink Control Channel
  • An embodiment of the present application provides User Equipment (UE), applicable to transmitting Hybrid Automatic Repeat-Request Acknowledgement (HARQ-ACK) feedback information in an Inter-eNB Carrier Aggregation (Inter-eNB CA) system.
  • UE User Equipment
  • HARQ-ACK Hybrid Automatic Repeat-Request Acknowledgement
  • Inter-eNB CA Inter-eNB Carrier Aggregation
  • a configuring module adapted to configure the UE to work in an Inter-eNB carrier aggregation mode according to configuration information received from a Primary cell (Pcell) eNB;
  • Pcell Primary cell
  • a receiving module adapted to receive Physical Downlink Shared Channel (PDSCH) data from each cell involved in Inter-eNB carrier aggregation;
  • PDSCH Physical Downlink Shared Channel
  • a feedback module adapted to transmit HARQ-ACK feedback information of the PDSCH data received from each cell of the Pcell eNB to the Pcell eNB, and transmit HARQ-ACK feedback information of the PDSCH data received from each cell of each Secondary cell (Scell) eNB to a corresponding Scell eNB via a Scell designated by the corresponding Scell eNB
  • HARQ-ACK feedback information of different eNBs can be transmitted respectively in the Inter-eNB carrier aggregation system due to relevant configurations at both the base station side and the UE side.
  • Figure 1 is a schematic diagram of conventional Inter-eNB carrier aggregation.
  • Figure 2 is a flowchart of a method for transmitting HARQ-ACK feedback information in an Inter-eNB carrier aggregation system in accordance with the present application.
  • FIG. 3 is a schematic diagram showing that a subframe offset is introduced between a Pcell and a main Scell when both the Pcell and the main Scell work in a Time Division Duplex (TDD) mode in accordance with an embodiment of the present application.
  • TDD Time Division Duplex
  • Figure 4 is a schematic diagram showing that there is a “three-frame + delta” time delay between a Pcell and a main Scell in accordance with a first embodiment of the present application.
  • Figure 5 is a schematic diagram of some subframes in which a shortened PUCCH transmission format is used to transmit HARQ-ACK feedback information in accordance with the present application.
  • Figure 6 is a schematic diagram showing that there is a “one-frame + delta” time delay between a Pcell and a main Scell in accordance with a second embodiment of the present application.
  • Figure 7 is a schematic diagram showing transmission of HARQ-ACK feedback information in a Pcell and a main Scell by way of Time Division Multiplexing when the Pcell and the main Scell work respectively in a TDD mode and a Frequency Division Duplex (FDD) mode in accordance with the present application.
  • FDD Frequency Division Duplex
  • Figure 8 is a schematic diagram of a timing relation of HARQ-ACK feedback information in a Pcell in accordance with a third embodiment and a firth embodiment of the present application.
  • Figure 9 is a schematic diagram showing that there is a “one-frame + delta” time delay between a Pcell and a main Scell in accordance with a fourth embodiment of the present application.
  • Figure 10 is a schematic diagram showing transmission of HARQ-ACK feedback information in a Pcell and a main Scell by way of Time Division Multiplexing when both the Pcell and the main Scell work in a FDD mode in accordance with the present application.
  • Figure 11 is a schematic diagram of a timing relation of HARQ-ACK feedback information in a main Scell in accordance with a fifth embodiment of the present application.
  • Figure 12 is a schematic diagram showing that there is a “delta” time delay between the Pcell and the main Scell in accordance with the fifth embodiment of the present application.
  • Figure 13 is a schematic diagram showing transmission of HARQ-ACK feedback information in a Pcell and a main Scell by way of Time Division Multiplexing in accordance with a sixth embodiment of the present application.
  • Figure 14 is a schematic diagram of a timing relation of HARQ-ACK feedback information in the Pcell in accordance with the sixth embodiment of the present application.
  • Figure 15 is a schematic diagram of a structure of preferred UE in accordance with the present application.
  • FIG. 2 is a flowchart of a method for transmitting HARQ-ACK feedback information in an Inter-eNB carrier aggregation system in accordance with the present application. As shown in Figure 2, the method includes the following:
  • Step 201 UE receives configuration information from a Pcell eNB, the configuration information configuring the UE to work in an Inter-eNB carrier aggregation mode.
  • Step 202 The UE receives data from each cell involved in Inter-eNB carrier aggregation. Specifically, the UE receives PDCCH data and PDSCH data respectively from each cell of a Pcell eNB and each cell of a Scell eNB.
  • Step 203 The UE sends HARQ-ACK feedback information of the PDSCH data received from each cell of the Pcell eNB to the Pcell eNB, and sends HARQ-ACK feedback information of the PDSCH data received from each cell of the Scell eNB to a corresponding Scell eNB via a Scell designated by the corresponding Scell eNB.
  • the UE determines a HARQ-ACK timing relation of the Pcell and the Scell designated by each Scell eNB according to a duplex mode of the Pcell and the Scell designated by each Scell eNB.
  • the duplex mode includes a Time Division Duplex mode and a Frequency Division Duplex mode.
  • the UE may receive the PDCCH sent by the Pcell eNB via the Pcell or Scell of the Pcell eNB and may receive the PDSCH scheduled by the PDCCH via the Pcell or Scell of the Pcell eNB, and then may feed back the HARQ-ACK feedback information of the PDSCH scheduled in the Pcell eNB via the Pcell; the UE may also receive the PDCCH sent by the Scell eNB via the Scell of the Scell eNB and may receive the PDSCH scheduled by the PDCCH via the Scell of the Scell eNB, and then may feed back the HARQ-ACK feedback information of the PDSCH scheduled in the Scell eNB via a Scell designated by the Scell eNB.
  • the Scell designated by the Scell eNB is a Scell designated in the Scell eNB to transmit the HARQ-ACK feedback information to the Scell eNB, and each Scell eNB designates one respective Scell to transmit the HARQ-ACK feedback information.
  • the Scell designated in the Scell eNB will be called main Scell of the Scell eNB in the subsequent description of the present application.
  • the UE may receive the PDCCH and the PDSCH scheduled by the PDCCH from the Pcell eNB or the Scell eNB and then may send the HARQ-ACK feedback information of the PDSCH respectively via the Pcell or the main Scell, a timing relation and transmission method of HARQ-ACK feedback information of each cell will be described with several different configurations of Inter-eNB CA in detail
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Pcell eNB is fed back to the Pcell eNB via the Pcell
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Scell eNB is fed back to the Scell eNB via the main Scell.
  • Time Division Multiplexing is used in the present application so as to make the Pcell and the main Scell transmit the HARQ-ACK feedback information at different time.
  • the Pcell eNB configures the UE to receive the PDCCH and the PDSCH scheduled by the PDCCH from the Pcell and the Scell eNB respectively.
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Pcell eNB is fed back to the Pcell eNB via the Pcell
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Scell eNB is fed back to the Scell eNB via the main Scell.
  • a subframe offset Nc is introduced between the Pcell and the main Scell so as to make the Pcell and the main Scell transmit the HARQ-ACK feedback information at different time.
  • the subframe offsets for all cells of the same eNB are the same.
  • k represents a sequence number of a subframe
  • c represents a sequence number of a Scell eNB
  • Nc represents a subframe offset of downlink transmission of the Pcell eNB and each Scell eNB
  • Nc is a natural number and Nc representing each Scell eNB involved in the Inter-eNB carrier aggregation is different from each other; in this case, after the Pcell eNB configures Nc for each Scell eNB, the UE receives the PDSCH data sent by the Pcell eNB on subframe k of each cell and receives the PDSCH data sent by the Scell eNB c on subframe
  • the Pcell and Scell 1 are cells covered by the Pcell eNB, and the main Scell and Scell 2 are cells covered by the Scell eNB;
  • the subframe offset Nc between the Pcell and the main Scell is three subframes, and respective subframe offsets Nc between all the cells under the Pcell eNB and all the cells under the Scell eNB are also three subframes.
  • the subframe offset between the Pcell and the main Scell may be sent to the UE by the Pcell eNB via configuration information, and as such, the UE may receive data from each cell involved in the Inter-eNB carrier aggregation according to the configuration information.
  • the UE configures a Carrier Aggregation (CA) system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell. Both the Pcell and the main Scell work in the TDD mode.
  • An offset between a subframe 0 of the main Scell and a subrame 0 of the Pcell is configured as three subframes. Because respective distances from the UE to the Pcell eNB and to the Scell eNB are different, there may be an extra delay delta between the subframe 0 of the Pcell and the subframe 0 of the main Scell.
  • each radio frame contains 10 subframes. Due to symmetry of subframes, the effect to configure a 3-subframe offset between the subframe 0 of the main Scell and the subframe 0 of the Pcell is the same as the effect to configure a 2-subframe offset between the subframe 0 of the main Scell and the subframe 0 of the Pcell. It is hence recommended to configure the 2-subframe offset in the present application.
  • subframes in the Pcell and the main Scell for transmitting HARQ-ACK feedback information are determined as subframes 2, 3, 7 and 8 in accordance with this embodiment in order to balance the number of subframes available for transmitting the HARQ-ACK feedback information in the Pcell and the main Scell.
  • the HARQ-ACK feedback information of the Pcell and the main Scell may be transmitted on the subframes 2, 3, 7 and 8, as shown in Figure 4.
  • the Pcell and the main Scell follow respective reference timing in this embodiment.
  • a method of determining the reference timing will be described hereinafter. If the TDD uplink and downlink configurations of the Pcell or main Scell are 1, 2 4 and 5, a timing relation of HARQ-ACK feedback information of the Pcell or main Scell may follow a timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configurations of the Pcell or main Scell.
  • the timing relation of the HARQ-ACK feedback information of the Pcell or main Scell may follow the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 4. If the TDD uplink and downlink configurations of the Pcell or main Scell are 0 and 6, the timing relation of the HARQ-ACK feedback information of the Pcell or main Scell may follow the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 1.
  • a “3-subframe + delta” delay between a downlink subframe of the Pcell and a downlink subframe of the main Scell. If delta is 0 microsecond and subframes of the two cells are aligned, a subframe 3 and a subframe 8 of the Pcell are configured by high-layer signaling to use a normal PUCCH transmission format. If delta is 30 microseconds and subframes of the two cells are not aligned, a subframe 7 of the Pcell is overlapped with a subframe 3 of the main Scell, and a subframe 2 of the Pcell is also overlapped with a subframe 8 of the main Scell, as shown in Figure 4.
  • the subframes 3 and 8 of the main Scell are configured by high-layer signaling to use a shortened PUCCH transmission format.
  • each subframe consists of two time slots, called time slot 0 and time slot 1, and each subframe contains 14 OFDM symbols
  • the shortened PUCCH transmission format in accordance with the present application is that: OFDM symbols 0, 1, 2, 3, 4 and 5 in slot 1 are used for the PUCCH transmission while OFDM symbol 6 in slot 1 is not used, as shown in Figure 5.
  • the determining method is that: if the tail of a first subframe of the two subframes is overlapped with the head of a second sbuframe thereof, the first subframe uses the shortened PUCCH transmission format.
  • the UE configures a CA system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell. Both the Pcell and the main Scell work in the TDD mode.
  • An offset of 1 subframe is configured between a subframe 0 of the main Scell and a subrame 0 of the Pcell, and thus there is a delay of “one-subframe + delta” between the subframe 0 of the Pcell and the subframe 0 of the main Scell.
  • subframes for transmitting the HARQ-ACK feedback information in the Pcell and the main Scell are subframe 2 and 7, that is, the HARQ-ACK feedback information in the Pcell and the main Scell may be transmitted on the sbuframes 2 and 7, as shown in Figure 6.
  • the UE may transmit the HARQ-ACK feedback information to the eNB on at most two subframes.
  • the method in this embodiment is particularly applicable to the situation that eNBs involved in the carrier aggregation are more than 2 and less or equal to 5.
  • the Pcell and the main Scell follow a timing relation as follows: if TDD uplink and downlink configurations of the Pcell or main Scell are 0, 1, 2 and 6, a timing relation of the HARQ-ACK feedback information of the Pcell or main Scell may follow a timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 2; if the TDD uplink and downlink configurations of the Pcell or main Scell are 3, 4 and 5, the timing relation of the HARQ-ACK feedback information of the Pcell or main Scell may follow the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 5.
  • At least one of a Pcell and a Scell designated by each Scell eNB works in the TDD mode, and at least one of the Pcell and the Scell designated by each Scell eNB works in the FDD mode.
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Pcell eNB is fed back to the Pcell eNB via the Pcell
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Scell eNB is fed back to the Scell eNB via the main Scell.
  • the HARQ-ACK feedback information of the Pcell and the HARQ-ACK feedback information of the main Scell are transmitted by way of Time Division Multiplexing so that the Pcell and the main Scell send the HARQ-ACK feedback information respectively at different time, as shown in Figure 7.
  • the UE configures a CA system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell.
  • the main Scell works in the TDD mode.
  • the main Scell transmits the HARQ-ACK feedback information on subframe 2, 3, 7 and 8, while the Pcell transmits the HARQ-ACK feedback information on subframes different from the subframes of the main Scell in time, and specifically, the Pcell transmits the HARQ-ACK feedback information on subframes 9, 0, 1, 4 and 5, as shown in Figure 7.
  • the timing relation of the HARQ-ACK feedback information of the Pcell is as follows: a subframe 8 of a radio frame n-1 and a subframe 9 of the radio frame n-1 transmit the HARQ-ACK feedback information on a subframe 4 of a radio frame n, a subframe 0 of the radio frame n and a subframe 1 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 5 of the radio frame n, a subframe 2 of the radio frame n and a subframe 3 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 9 of a radio frame n+1, the subframe 4 of the radio frame n and the subframe 5 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 0 of the radio subframe n+1, and a subframe 6 of the radio frame n and a subframe 7 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 1 of the radio frame n+1
  • the HARQ-ACK timing relation of the main Scell is as follows: if TDD uplink and downlink configurations of the main Scell are 1, 2, 4 and 5, a timing relation of the HARQ-ACK feedback information of the main Scell follows a timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configurations of the main Scell; if the TDD uplink and downlink configurations of the main Scell are 3, the timing relation of the HARQ-ACK feedback information of the main Scell follows the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 4; if the TDD uplink and downlink configurations of the main Scell are 0 and 6, the timing relation of the HARQ-ACK feedback information of the main Scell follows the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 1 .
  • the subframes 3 and 8 of the main Scell may need to use a shortened PUCCH transmission format according to different delta values.
  • the subframe 3 and subframe 8 of the main Scell are configured by high-layer signaling to use a normal PUCCH transmission format
  • a subframe 1 of the Pcell is also configured by high-layer signaling to use a normal PUCCH transmission format.
  • a subframe 3 of a radio frame n of the main Scell is overlapped with a subframe 4 of the radio frame n of the Pcell
  • a subframe 8 of the radio frame n of the main Scell is overlapped with a subframe 9 of a radio frame n+1 of the Pcell.
  • the subframe 3 and subframe 8 of the main Scell are configured by high-layer signaling to use a shortened PUCCH transmission format, that is, OFDM symbols 0, 1, 2, 3, 4 and 5 of the subframes 3 and 8 are used for the PUCCH transmission in time slot 1 while OFDM symbol 6 in time slot 1is not used, as shown in Figure 5.
  • the UE configures a CA system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell.
  • the main Scell works in the TDD mode.
  • the main Scell sends the HARQ-ACK feedback information on subframes 2 and 7, and the Pcell transmits the HARQ-ACK feedback information on subframes having one-frame interleaving with the subframes of the main Scell, i.e., the Pcell transmits the HARQ-ACK feedback information on subframes 1 and 6, as shown in Figure 9.
  • a HARQ-ACK timing relation of the main Scell is that: if TDD uplink and downlink configurations of the main Scell are 0, 1, 2 and 6, the timing relation of the HARQ-ACK feedback information of the main Scell follows the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 2; if the TDD uplink and downlink configurations of the main Scell are 3, 4 and 5, the timing relation of the HARQ-ACK feedback information of the main Scell follows the timing relation of the HARQ-ACK feedback information of the TDD uplink and downlink configuration 5.
  • the timing relation of the HARQ-ACK feedback information of the Pcell is that: subframes 3, 4, 5, 6 and 7 of a radio frame n transmit the HARQ-ACK feedback information on a subframe 1 of a radio frame n+1, and subframes 8 and 9 of the radio frame n as well as subframes 0, 1 and 2 of the radio frame n+1 transmit the HARQ-ACK feedback information on a subframe 6 of the radio frame n+1.
  • the subframe 1 of the Pcell is not overlapped with the subframe 2 of the main Scell while the subframe 6 of the Pcell is not overlapped with the subframe 7 of the main Scell, and the subframe 1 and subframe 6 of the Pcell are configured by high-layer signaling to use a normal PUCCH transmission format.
  • the UE may transmit the HARQ-ACK feedback information to the eNB on at most two subframes.
  • the method in this embodiment is particularly applicable to the case that the eNBs involved in the carrier aggregation are more than 2 and less or equal to 5.
  • the eNBs involved in the carrier aggregation are two is described as an example. If the eNBs involved in the carrier aggregation are three, a second main Scell may have one-frame interleaving with the above-mentioned Pcell and main Scell.
  • the HARQ-ACK feedback information may be transmitted on subframes 3 and 8 of the second main Scell and a HARQ-ACK timing relation of the second main Scell may be determined according to the determine method mentioned above.
  • a HARQ-ACK timing relation of the second main Scell may be determined according to the determine method mentioned above.
  • it may be
  • 5,wherein N1 and N2 are subframes applicable to transmitting the HARQ-ACK feedback information in a cell working in the FDD mode, N1 ⁇ 2 and N1 of each cell is different from each other.
  • the cell working in the FDD mode follows the HARQ-ACK timing relation that: the HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N1 is transmitted on the subframe N1, and the HARQ-ACK feedback information of the 4th, 5th, 6th, 7th and 8th subframes before the subframe N2 is transmitted on the subframe N2.
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Pcell eNB is fed back to the Pcell eNB via the Pcell
  • the HARQ-ACK feedback information of the PDSCH received by the UE from the Scell eNB is fed back to the Scell eNB via the main Scell.
  • the HARQ-ACK feedback information of the Pcell and the HARQ-ACK feedback information of the main Scell are transmitted by Time Division Multiplexing, so that different Pcells and main Scells transmit the HARQ-ACK feedback information respectively at different time, as shown in Figure 10.
  • an uplink subframe for transmitting the HARQ-ACK feedback information may be the same as the uplink subframe of a cell working in the FDD mode for transmitting the HARQ-ACK feedback information in the situation 2 in which one of the Pcell and the main Scell works in the TDD mode and the other works in the FDD mode, and the timing relation of the HARQ-ACK feedback information in the situation 3 is also the same as the timing relation of the HARQ-ACK feedback information in the cell working in the FDD mode in accordance with the situation 2.
  • the UE configures a CA system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell. Both the Pcell and the main Scell work in the FDD mode.
  • the Pcell sends the HARQ-ACK feedback information on subframes 9, 0, 1, 4 and 5, and the main Scell sends the HARQ-ACK feedback information on subframe 2, 3, 7 and 8, as shown in Figure 10.
  • the timing relation of the HARQ-ACK feedback information of the Pcell is as follows: a subframe 8 of a radio frame n-1 and a subframe 9 of the radio frame n-1 transmit the HARQ-ACK feedback information on a subframe 4 of a radio frame n, a subframe 0 of the radio frame n and a subframe 1 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 5 of the radio frame n, a subframe 2 of the radio frame n and a subframe 3 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 9 of a radio frame n+1, the subframe 4 of the radio frame n and the subframe 5 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 0 of the radio subframe n+1, and a subframe 6 of the radio frame n and a subframe 7 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 1 of the radio frame n+1
  • the timing relation of the HARQ-ACK feedback information of the main Scell is as follows: a subframe 9 of a radio frame n-1 and a subframe 0 of a radio frame n transmit the HARQ-ACK feedback information on a subframe 6 of the radio frame n, a subframe 1 of the radio frame n and a subframe 2 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 7 of the radio frame n, a subframe 3 of the radio frame n and a subframe 4 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 8 of the radio frame n, a subframe 5 of the radio frame n and a subframe 6 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 2 of a radio subframe n+1, and the subframe 7 of the radio frame n and the subframe 8 of the radio frame n transmit the HARQ-ACK feedback information on a subframe 3 of the radio frame n+1, as
  • the subframe 3 of the radio frame n of the main Scell is overlapped with the subframe 4 of the radio frame n of the Pcell, and the subframe 8 the radio frame n of the main Scell is also overlapped with the subframe 9 of radio frame n+1 of the Pcell.
  • the subframes 3 and 8 of the main Scell are configured by high-layer signaling to use a shortened PUCCH transmission format, that is, the PUCCH transmission in time slot 1 uses OFDM symbols 0, 1, 2, 3, 4 and 5, but not OFDM symbol 6 in time slot 1, as shown in Figure 5.
  • the UE configures a CA system of two cells which belong to the Pcell eNB and the Scell eNB respectively.
  • the cell belonging to the Pcell eNB is called Pcell while the cell belonging to the Scell eNB is called main Scell. Both the Pcell and the main Scell work in the FDD mode.
  • the Pcell sends the HARQ-ACK feedback information on subframes 9 and 4, and the main Scell sends the HARQ-ACK feedback information on subframes 1 and 6, as shown in Figure 13.
  • the HARQ-ACK timing relation of the Pcell is as follows: subframes 1, 2, 3, 4 and 5 of a radio frame n transmit the HARQ-ACK feedback information on a subframe 9 of the radio frame n, and subframes 6, 7, 8 and 9 of the radio frame n and a subframe 0 of a radio frame n+1 transmit the HARQ-ACK feedback information on a subframe 4 of the radio frame n+1, as shown in Figure 14.
  • the HARQ-ACK timing relation of the main Scell is as follows: subframes 3, 4, 5, 6 and 7 of a radio frame n transmits the HARQ-ACK feedback information on a subframe 1 of a radio frame n+1, and subframes 8 and 9 of the radio frame n and subframes 0, 1 and 2 of the radio frame n+1 transmit the HARQ-ACK feedback information on a subframe 6 of the radio frame n+1.
  • the UE may transmit the HARQ-ACK feedback information to the eNB on at most two subframes.
  • the method in this embodiment is particularly applicable to the situation in which the eNBs involved in the carrier aggregation are more than 2 and less or equal to 5.
  • the situation in which the eNBs involved in the carrier aggregation are two is described as an example. If eNBs involved in the carrier aggregation are three, a second main Scell may have one-frame interleaving with the above-mentioned Pcell and main Scell.
  • the HARQ-ACK feedback information may be transmitted on subframes 2 and 7 of the second main Scell and a HARQ-ACK timing relation of the second main Scell may be determined according to the above-mentioned method.
  • a HARQ-ACK timing relation of the second main Scell may be determined according to the above-mentioned method.
  • it may be
  • 5,wherein N3 and N4 are subframes of each cell applicable to transmitting the HARQ-ACK feedback information, and N3 of each cell is different from each other.
  • Each cell follows the HARQ-ACK timing relation that: the HARQ-ACK feedback information of the 4 th , 5 th , 6 th , 7 th and 8 th subframes before the subframe N3 is transmitted on the subframe N3, and the HARQ-ACK feedback information of the 4 th , 5 th , 6 th , 7 th and 8 th subframes before the subframe N4 is transmitted on the subframe N4.
  • the User Equipment includes a configuring module, a receiving module and a feedback module.
  • the configuring module is adapted to configure the UE to work in an Inter-eNB carrier aggregation mode according to configuration information received from a Pcell eNB.
  • the receiving module is adapted to receive PDCCH and PDSCH data respectively from each cell of the Pcell eNB and each cell of a Scell eNB.
  • the feedback module is adapted to transmit HARQ-ACK feedback information of the PDSCH data received from each cell of the Pcell eNB to the Pcell eNB, and transmit HARQ-ACK feedback information of the PDSCH data received from each cell of the Scell eNB to the Scell eNB.
  • HARQ-ACK feedback information of different eNBs can be transmitted respectively in the Inter-eNB carrier aggregation system due to relevant configurations at both the base station side and the UE side.

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

Abstract

Des modes de réalisation de la présente demande portent sur un procédé de transmission d'informations de rétroaction HARQ-ACK dans un système d'agrégation de porteuses (CA) inter-eNB. Selon le procédé, un UE reçoit des informations de configuration en provenance d'un eNB de cellule primaire (eNB de Pcell), les informations de configuration configurant l'UE pour fonctionner dans un mode CA inter-eNB ; l'UE reçoit des données de canal partagé de liaison descendante physique (PDSCH) en provenance de chaque cellule impliquée dans l'agrégation de porteuses inter-eNB ; et l'UE envoie des informations de rétroaction HARQ-ACK des données PDSCH reçues en provenance de chaque cellule de l'eNB de Pcell à l'eNB de Pcell, et envoie des informations de rétroaction HARQ-ACK des données PDSCH reçues en provenance de chaque cellule de chaque eNB de cellule secondaire (eNB de Scell) à un eNB de Scell correspondant par l'intermédiaire d'une cellule secondaire désignée par l'eNB de Scell correspondant. Des modes de réalisation de la présente demande portent également sur un UE. Par les modes de réalisation de la présente demande, des informations de rétroaction HARQ-ACK peuvent être transmises dans le système CA inter-eNB.
PCT/KR2014/002518 2013-03-25 2014-03-25 Procédé et appareil de transmission d'harq-ack dans un système d'agrégation de porteuses inter-enb WO2014157923A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3016427A3 (fr) * 2014-10-09 2016-08-03 Acer Incorporated Dispositif de gestion de services dans une cellule sans licence dans le context de lte license assisted access

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105207757B (zh) 2014-06-24 2020-01-21 中兴通讯股份有限公司 通信系统的载波聚合方法及装置
ES2797806T3 (es) 2015-01-14 2020-12-03 Lg Electronics Inc Método para transmitir realimentaciones de HARQ multiplexadas en un sistema de agregación de portadoras y un dispositivo para el mismo
CN106788926B (zh) * 2015-11-25 2019-09-06 上海朗帛通信技术有限公司 一种降低网络延迟的无线通信方法和装置
CN107979485B (zh) * 2016-10-25 2022-03-01 中兴通讯股份有限公司 多模式深度融合的方法、装置及基站
US11336416B2 (en) 2017-03-08 2022-05-17 Nokia Solutions And Networks Oy Apparatus and method for communication
EP3619875B1 (fr) * 2017-05-04 2022-08-03 SHARP Kabushiki Kaisha Dispositif utilisateur, station de base et procédés
CN111464324A (zh) * 2019-01-18 2020-07-28 中兴通讯股份有限公司 一种安全通信方法、装置和系统
CN112350805B (zh) * 2019-08-08 2022-03-29 大唐移动通信设备有限公司 一种信息传输方法、终端及基站

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012149898A1 (fr) * 2011-05-03 2012-11-08 Mediatek Inc. Surveillance de liaison radio et gestion de défaillance de liaison radio de scell
KR20130005625A (ko) * 2011-07-07 2013-01-16 주식회사 팬택 다중 요소 반송파 시스템에서 ａｃｋ/ｎａｃｋ 신호의 전송 장치 및 방법
WO2013029251A1 (fr) * 2011-08-31 2013-03-07 Nokia Corporation Technique de synchronisation harq pour information de commande de liaison montante mono-porteuse comprenant une agrégation de porteuses inter-site

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012149898A1 (fr) * 2011-05-03 2012-11-08 Mediatek Inc. Surveillance de liaison radio et gestion de défaillance de liaison radio de scell
KR20130005625A (ko) * 2011-07-07 2013-01-16 주식회사 팬택 다중 요소 반송파 시스템에서 ａｃｋ/ｎａｃｋ 신호의 전송 장치 및 방법
WO2013029251A1 (fr) * 2011-08-31 2013-03-07 Nokia Corporation Technique de synchronisation harq pour information de commande de liaison montante mono-porteuse comprenant une agrégation de porteuses inter-site

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON ET AL.: "Physical layer aspects of dual connectivity", R1-130566, 3GPP TSG RAN WG1 MEETING #72, 28 January 2013 (2013-01-28) - 1 February 2013 (2013-02-01), ST. JULIAN'S, MALTA *
RESEARCH IN MOTION, UK LIMITED: "Cross-carrier scheduling of PUSCH in TDD inter-band CA", R1-125071, 3GPP TSG RAN WG1 MEETING #71, 12 November 2012 (2012-11-12) - 16 November 2012 (2012-11-16), NEW ORLEANS, USA *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3016427A3 (fr) * 2014-10-09 2016-08-03 Acer Incorporated Dispositif de gestion de services dans une cellule sans licence dans le context de lte license assisted access
US10575325B2 (en) 2014-10-09 2020-02-25 Acer Incorporated Device and method of handling service in unlicensed cell

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