WO2015019175A1 - Procédé et appareil d'émission d'informations de commande - Google Patents

Procédé et appareil d'émission d'informations de commande Download PDF

Info

Publication number
WO2015019175A1
WO2015019175A1 PCT/IB2014/001710 IB2014001710W WO2015019175A1 WO 2015019175 A1 WO2015019175 A1 WO 2015019175A1 IB 2014001710 W IB2014001710 W IB 2014001710W WO 2015019175 A1 WO2015019175 A1 WO 2015019175A1
Authority
WO
WIPO (PCT)
Prior art keywords
division duplex
control information
data
time division
automatic repeat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2014/001710
Other languages
English (en)
Inventor
Fanglei Sun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel Lucent SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Publication of WO2015019175A1 publication Critical patent/WO2015019175A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—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
    • H04L1/1854—Scheduling and prioritising 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • 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) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or 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 signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present invention relates to a wireless communications system and more particularly to a method and apparatus for transmitting control information in Long Term Evolution Time Division Duplex-Frequency Division Duplex (LTE TDD-FDD) joint system.
  • LTE TDD-FDD Long Term Evolution Time Division Duplex-Frequency Division Duplex
  • the round-trip time (RTT) for both uplink (UL) and downlink (DL) transmission is fixed as 8 ms and the maximum Hybrid Automatic Repeat Request (HARQ) process number (HPN) is fixed as 8.
  • the position for positive acknowledgement (ACK)/negative acknowledgement (NACK) feedback is fixed, i.e., it is transmitted after processing time of 3ms following DL transmission.
  • DL DCI downlink control information
  • a user equipment cannot always find an UL subframe for the ACK/NACK feedback of a physical downlink shared channel (PDSCH), for example.
  • the UE needs to wait and cannot perform the ACK/NACK feedback until the UL subframe arrives.
  • the RRT is 11 ms and positions of ACK/NACK feedback are discontinuous.
  • Table 7-1 of 3GPP TS 36.213 illustrates maximum numbers of DL HARQ processes in different TDD UL/DL configurations. Table 1 represents the content of Table 7-1 of 3GPP TS 36.213.
  • the interval between PDSCH transmission and ACK/NACK feedback ranges from 4 to 13 subframes in length, and normally between 4 ms and 13 ms.
  • the HPN field in the DL DCI is set as 4 bits.
  • the current 3GPP Specification sets an important constraint on HARQ transmission in the case of carrier aggregation, that is, a physical uplink control channel (PUCCH) that carries HARQ is only transmitted on a primary component carrier (PCC).
  • PUCCH physical uplink control channel
  • PCC primary component carrier
  • the ACK/NACK will be carried by the TDD PCC either on the PUCCH or PUSCH.
  • a TDD component carrier CC
  • FDD CC FDD component carrier
  • ACK/NACK feedback will be sent in a UL subframe numbered as 7 in the TDD PCC, and afterwards, after a processing delay of 3 ms, the eNB may send the next PDSCH, and in this case, the RTT for this FDD DL CC is extended beyond 8ms and to 11 ms.
  • the HPN field is still configured as 3 bits in length in the FDD DL DCI, it is insufficient to indicate the actually required HPN.
  • the ACK/NACK of all CCs should be transmitted on the PCC via the PUCCH or PUSCH except for the following situation. If a UE is configured with more than one serving cell but not configured as performing PUSCH and PUCCH transmission simultaneously, then in subframe n, if uplink control information (UCI) consists of a periodical CSI and/or HARQ-ACK and the UE does not transmit the PUSCH on a primary cell but transmits the PUSCH on at least one secondary cell, then the UCI should be transmitted on the PUSCH of a secondary cell with the smallest Scelllndex (i.e. serving cell index).
  • UCI uplink control information
  • the SCC with the smallest Scelllndex is an FDD CC
  • the SCC with the smallest Scelllndex is an FDD CC
  • embodiments of the present invention propose a method and apparatus for dynamically adjusting the value of a binding size to effectively confirm information transmission in the case that the TDD UL-DL configuration is changed based on traffic adaptation.
  • a method for transmitting control information used in a time division duplex (TDD) and frequency division duplex (FDD) carrier aggregation system the system being configured with a plurality of component carriers used respectively for the time division duplex and frequency division duplex.
  • the method comprises: configuring control information associated respectively with the plurality of component carriers at a base station; sending data to a user equipment respectively on the plurality of component carriers, the data at least comprising the control information associated with a respective component carrier; and receiving acknowledgement information for the data from the user equipment in one uplink subframe used for the time division duplex, wherein the control information is configured to indicate to the user equipment timing of sending the acknowledgement information for the data received on the respective component carrier used for the frequency division duplex, said timing being consistent with the timing of sending the acknowledgement information for the data received on the respective component carrier used for the time division duplex,
  • a method for transmitting acknowledgement information used in a TDD and FDD carrier aggregation system comprising: receiving data from a base station on the plurality of component carriers respectively, the data at least comprising control information associated a respective component carrier; extracting the control information from the received data; and sending acknowledgement information for the data in one uplink subframe used for the time division duplex based on the control information, wherein a user equipment obtains, based on the control information, timing of sending to the base station the acknowledgement information for the data received on the respective component carrier used for the frequency division duplex, said timing being consistent with the timing of sending the acknowledgement information for the data received on the respective component carrier used for the time division duplex.
  • a communications apparatus used in a TDD and FDD carrier aggregation system.
  • the system is configured with a plurality of component carriers used respectively for the time division duplex and the frequency division duplex.
  • the communications apparatus comprises: a processor configured for configuring control information associated respectively with the plurality of component carriers; an transmitter configured for sending data to a UE on the plurality of component carriers respectively, the data at least comprising the control information associated with a respective component carrier; and a receiver configured for receiving the acknowledgement information for the data from the UE in one uplink subframe used for the time division duplex, wherein the control information is configured to indicate to the UE timing of sending the acknowledgement information for the data received on the respective component carrier used for the frequency division duplex, said timing being consistent with the timing of sending the acknowledgement information for the data received on the corresponding component carrier used for the time division duplex.
  • a communications apparatus used in a TDD and FDD carrier aggregation system.
  • the system is configured with a plurality of component carriers used respectively for the time division duplex and the frequency division duplex.
  • the communications apparatus comprises: a receiver configured for receiving data from a base station on the plurality of component carriers respectively, the data at least comprising control information associated with a respective component carrier; a processor configured for extracting the control information from the received data; and an transmitter configured for sending, based on the control information, acknowledgement information for the data in one uplink subframe used for the time division duplex, wherein a user equipment obtains, based on the control information, timing of sending the acknowledgement information for the data received on the respective component carrier used for the frequency division duplex, said timing being consistent with the timing of sending the acknowledgement information for the data received on the respective component carrier used for the time division duplex.
  • a communications apparatus used in a time division duplex and frequency division duplex carrier aggregation system.
  • the system is configured with a plurality of component carriers used respectively for the time division duplex and the frequency division duplex, wherein the components carriers used for the frequency division duplex include uplink component carriers and downlink component carriers.
  • the communications apparatus comprises: a device for receiving data from a base station, the data at least comprising control information associated with a respective component carrier; a device for extracting the control information from the data; and a device for sending, based on the respective control information, acknowledgement information for the data received on the component carrier used for the time division duplex in one uplink subframe used for the time division duplex, and sending acknowledgement information for the data received on the respective downlink component carrier used for the frequency division duplex on one uplink component carrier used for the frequency division duplex, respectively.
  • Fig. 1 shows a round trip time for uplink and downlink transmission in an LTE TDD and LTE FDD system in the prior art
  • Fig. 2 shows a potential problem in the case of FDD and TDD carrier aggregation
  • Fig. 3 shows a flowchart for a method 300 used in an LTE FDD-TDD CA system for indicating HPN information to a UE according to an embodiment of the present invention
  • Fig. 4 shows a flowchart of a method 400 used in an LTE FDD-TDD CA system for transmitting acknowledgement information to a base station according to an embodiment of the present invention
  • Fig. 5 illustrates a communications apparatus 500 on the base station side and a communications apparatus 510 on the user equipment side for implementing embodiments of the present invention.
  • the HPN field is enabled to indicate up to 16 HARQ processes. If an UE is configured with TDD-FDD CA and a TDD CC is configured as the PCC, then it is needed to modify the current radio resource control (RRC) signaling for the CA, so as to notify the TDD-FDD CA configuration of this type.
  • RRC radio resource control
  • the eNB uses the HPN of 4 bits to code the DL DCI (or DL grant) that schedules the FDD DL CC resource; then at the UE side, the UE blindly decodes the DL DCI of the FDD CC based on the new DCI size with one additional bit.
  • This method has been used in the decoding of the DCI with a CIF (carrier indicator field) for scheduling across CCs, which is not described redundantly.
  • the UE is aware of the CA configuration, in order to decode the DL DCI of this type, the UE will use the new DCI size with additional 3 bits to carry out blind decoding.
  • This explicit signaling approach can effectively communicate to the UE the HPN information associated with FDD CCs, while not increasing complexity of the blind decoding.
  • the HPN may be implicitly notified by position information of the DL
  • DCI in an (e) PDCCH frame For example, if the DL DCI is located in odd downlink subframes, then it implicitly indicates to the UE that one bit 0 is added to the HPN; and if the DL DCI is located in even downlink subframes, then it implicitly indicates to the UE that one bit 1 is added to the HPN, and vice versa.
  • One skilled in the art should understand that other different approaches may be used to provide the DL DCI or the (e) PDCCH including the DL DCI at different downlink subframes. As long as these approaches can implicitly communicate to the UE the HPN information associated with different DL CCs, they all can achieve the objective of the present invention and fall into the protection scope of the present invention.
  • the HPN may be implicitly notified to the UE by means of the position of the DL DCI or the (e) PDCCH including the DL DCI in a common search space monitored by the UE or in a search space specific to the UE.
  • the (e) PDCCH common search space where the DL DCI may be located or the search space specific to the UE may be divided into two sets according to the applied control channel element (CCE) aggregation, e.g., a previous half of the search space may be classified as a first set and a last half of the search space as a second set; or the division may be depending on odd/even indices.
  • CCE applied control channel element
  • the desired DCI is Format 2 and the CCE aggregation level is 2, namely L - 2
  • Table 2 represents the content of Table9.1.1-1.
  • the PDCCH may further be divided into two sets, e.g., the first set may be divided as ⁇ 1,2,3 ⁇ and the second set may be divided as ⁇ 4,5,6 ⁇ , by means of which the UE is implicitly informed of the additional bit of the HPN being 0 or 1.
  • the DCI in the PDCCH of the first set implicitly contains one additional bit 0 while the DCI in the PDCCH of the second set implicitly contains one additional bit 1.
  • the division for the sets and their correspondence to the additional bit value are not limited to this, and any division manners and correspondence capable of achieving the objective of the present invention all fall into the protection scope of the present invention.
  • a method for implicitly informing the additional bit on the (e) PDCCH is provided.
  • each UE may support one antenna port, or a plurality of antenna ports, for example, a dual antenna port including antenna port 0 and antenna port 1.
  • the UE supporting multiple antenna ports may adopt the UE transmit antenna selecting technology to select an antenna port to transmit uplink signals.
  • the UE transmitting antenna selection is configured in a higher layer.
  • a closed-loop antenna selection is enabled, i.e. a base station, e.g. an eNodeB, indicates which antenna should be used for the PUSCH by coding the information for indicating which antenna should be used for the PUSCH in the uplink scheduling grant (DCI 0).
  • the base station scramble 16 CRC parity bits (for example, by modulo-2 addition), with one of two antenna selection masks as shown in Table 3.
  • the antenna selection masks listed in Table 3 represent the content of Table 5.3.3.2-1 in 3GPP TS 36.212.
  • the base station uses one antenna mask and a corresponding UE identification (for example, RNTI) mask to scramble the CRC parity bits of the PDCCH with DCI format 0, wherein the UE identification mask is used for indicating the UE to which the scheduling grant is directed.
  • the UE will use two masks to try decoding, wherein depending on which decoding is successful, the UE will know whether "1" or "0" is corresponding to the mask used by the base station. With this implicit coding, it is avoided to use the explicit antenna section bit.
  • the explicit antenna section may result in an increased overhead for UEs not supporting (or not configured) for the transmit antenna selection.
  • the eNB may apply a UE identifier ID and one HPN mask, for example, ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> to the CRC.
  • the UE uses the UE ID and two HPN masks, i.e., ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> and ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1> to perform decoding, for example, perform the bit exclusive-or (XOR) operation with the received data.
  • the decoding by using ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> mask is successful, thus the UE may be aware that the value of the added HPN bit is 0. Then, in combination of the value of the received HPN field, the UE may know the HPN information indicated by the base station.
  • the UE antenna selection mask is merely used for the UL grant (the PDCCH having DCI Format 0) while the HPN extension problem concerned by the embodiments of the present invention only happens in the DL grant (i.e., PDCCHs having DCI Format 1/1A/1B/1C/2/2A/2B/2D/3/3A), according to embodiments of the present invention, it is possible to reuse the UE antenna section mask for the HPN extension with 1 bit, such that the complexity in computation and design would not be introduced.
  • Table 4 illustrates an example of the HPN mask of one embodiment of the present invention.
  • Fig. 3 shows a flowchart for a method 300 used in an LTE FDD-TDD CA system for indicating HPN information to a UE according to an embodiment of the present invention.
  • a base station e.g., an eNodeB or eNB
  • the control information is the value of an HPN field.
  • the base station sends data to the UE respectively on the plurality of downlink component carriers (e.g., FDD DL CC and TDD DL CC), the data at least comprising control information associated with a respective downlink component carrier.
  • the UE acknowledgement information for the data on one component carrier e.g. TDD PCC
  • the control information is configured to indicate to the UE that: timing of sending the acknowledgement information for the data received on the respective downlink component carrier for the frequency division duplex is consistent with the timing of sending the acknowledgement information for the data received on the downlink component carrier for the time division duplex.
  • the HPN field in the DL DCI of an (e) PDCCH it is possible to directly set the HPN field in the DL DCI of an (e) PDCCH as 4 bits, so as to indicate to the UE the HPN information associated with a FDD CC.
  • the value of a bit which may be, as the additional bit, added into the HPN field included in the DL DCI of the (e) PDCCH may be implicitly indicated to the UE by setting the position of the (e) PDCCH in the common search space monitored by the UE or in the search space specific to the UE, so as to indicate to the UE the HPN information associated with the FDD CC.
  • the UE antenna section mask for the HPN mask, so as to implicitly indicate to the UE the value of a bit which may be, as the additional bit, added into the HPN field included in the DL DCI of the (e) PDCCH, to indicate to the UE the HPN information associated with the FDD CC.
  • Fig. 4 shows a flowchart of method 400 used in an LTE FDD-TDD CA system for transmitting acknowledgement information to a base station according to an embodiment of the present invention.
  • a UE receives data from the base station respectively on a plurality of downlink component carriers, the data at least comprising control information associated with a respective downlink component carrier.
  • the UE extracts from the received data the control information associated with individual downlink component carriers.
  • the UE based on the extracted control information, sends the acknowledgement information for the received data on one uplink component carrier for the time division duplex.
  • the UE obtains, based on the extracted control information, timing of sending the acknowledgement information to the base station for the data received on the respective downlink component carrier for the frequency division duplex, said timing being consistent with the timing of sending the acknowledgement information for the data received on the downlink component carrier for the time division duplex.
  • Fig. 5 illustrates a communications apparatus 500 at the base station side for implementing method 300 in an LTE FDD-TDD CA system and an communications apparatus 510 at the equipment side for implementing method 400 according to an embodiment of the present invention.
  • the communications apparatus 500 at least comprises: a transmitter/receiver 501, configured for sending data to a UE, the data at least comprising control information associated with a respective downlink component carrier, and for receiving from the UE acknowledgement information for the data on one uplink component carrier for the time division duplex; and a processor 502, configured for configuring control information associated with downlink component carriers so as to indicate to the UE timing of sending the acknowledgement information, wherein the control information may indicate to the UE that: the timing of sending the acknowledgement information for the data received on the respective downlink component carrier for the frequency division duplex is consistent with the timing of sending the acknowledgement information for the data received on the downlink component carrier for the time division duplex.
  • the communications apparatus 500 may also comprise a memory 504, used for storing program codes and
  • the communications apparatus 510 at the UE side comprises: a transmitter/receiver 511, configured for receiving data from the base station respectively on a plurality of downlink component carriers, the data at least comprising control information associated with a respective downlink component carrier, and for sending, based on the control information, the acknowledgement information for the received data on one uplink component carrier for the time division duplex; and a processor 512, configured for extracting from the received data the control information associated with individual downlink component carriers.
  • the communications apparatus 510 may also comprise a memory 514, used for storing program codes and data used in steps of method 400.
  • the PUCCH is enabled at a UE to be transmitted on the FDD SCC, such that ACK/NACK for the FDD DL CC and the ACK/NACK for TDD DL are transmitted on different component carriers.
  • the resource allocation for the ACK/NACK of the PDSCH on all TDD CCs is depending on the existing specification for the TDD CA system, however, as for the ACK/NACK of the PDSCH on all FDD CCs, if the PCC is a TDD CC, then one UL CC is selected in the FDD, and another set of PUCCHs are provided on this CC, and the ACK/NACK for the FDD PDSCH is arranged on the configured PUCCHs.
  • all ACK/NACKs may be arranged on the PUCCH; and if not, then the ACK/NACKs may be arranged on the PUSCH of all FDD UL CCs.
  • the DL HARQs for individual FDD CCs will be transmitted on respective FDD UL CCs.
  • the ACK/NACK for the FDD PDSCH may be carried on the FDD PUCCH/PUSCH according to the timing of FDD HARQ, so as to avoid the problem due to the previous HPN difference between the FDD and the TDD.

Landscapes

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

Abstract

La présente invention concerne, dans certains modes de réalisation, un procédé et un appareil d'émission d'informations de commande. Le procédé comporte les étapes consistant à: configurer des informations de commande associées respectivement à une pluralité de composantes porteuses au niveau d'une station de base; envoyer des données à un équipement d'utilisateur respectivement sur la pluralité de composantes porteuses, les données comportant au moins les informations de commande associées à une composante porteuse considérée; et recevoir des informations d'accusé de réception des données en provenance de l'équipement d'utilisateur dans une sous-trame de liaison montante pour un duplex par répartition en temps, les informations de commande étant configurées pour indiquer à l'équipement d'utilisateur la chronologie d'envoi des informations d'accusé de réception des données reçues sur la composante porteuse considérée pour un duplex par répartition en fréquence, ladite chronologie étant cohérente avec la chronologie d'envoi des informations d'accusé de réception des données reçues sur la composante porteuse considérée pour le duplex par répartition en temps.
PCT/IB2014/001710 2013-08-07 2014-07-28 Procédé et appareil d'émission d'informations de commande Ceased WO2015019175A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310342570.4A CN104348582B (zh) 2013-08-07 2013-08-07 用于传输控制信息的方法和设备
CN201310342570.4 2013-08-07

Publications (1)

Publication Number Publication Date
WO2015019175A1 true WO2015019175A1 (fr) 2015-02-12

Family

ID=51905298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/001710 Ceased WO2015019175A1 (fr) 2013-08-07 2014-07-28 Procédé et appareil d'émission d'informations de commande

Country Status (3)

Country Link
CN (1) CN104348582B (fr)
TW (1) TW201519680A (fr)
WO (1) WO2015019175A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106470050A (zh) * 2015-08-12 2017-03-01 中兴通讯股份有限公司 实现基站间协作多点CoMP下行传输的方法及相应的基站
CN111869122A (zh) * 2018-03-30 2020-10-30 华为技术有限公司 天线选择的方法及相关装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10342012B2 (en) 2015-03-15 2019-07-02 Qualcomm Incorporated Self-contained time division duplex (TDD) subframe structure
US10075970B2 (en) 2015-03-15 2018-09-11 Qualcomm Incorporated Mission critical data support in self-contained time division duplex (TDD) subframe structure
US9936519B2 (en) 2015-03-15 2018-04-03 Qualcomm Incorporated Self-contained time division duplex (TDD) subframe structure for wireless communications
US9814058B2 (en) 2015-05-15 2017-11-07 Qualcomm Incorporated Scaled symbols for a self-contained time division duplex (TDD) subframe structure
US10798685B2 (en) 2015-05-27 2020-10-06 Qualcomm Incorporated Cyclic redundancy check for uplink control information on control and data channels
US9992790B2 (en) 2015-07-20 2018-06-05 Qualcomm Incorporated Time division duplex (TDD) subframe structure supporting single and multiple interlace modes
WO2017074522A1 (fr) * 2015-10-30 2017-05-04 Intel IP Corporation Réduction de latence pour une transmission de données sans fil
US10631323B2 (en) * 2015-12-08 2020-04-21 Qualcomm Incorporated Delayed control feedback in a time division duplex carrier utilizing common bursts
WO2018175820A1 (fr) * 2017-03-23 2018-09-27 Gang Xiong Planification, opération de demande de répétition automatique hybride et conception de livre de codes pour une agrégation de porteuses de nouvelle radio
GB2572646B (en) * 2018-04-06 2021-07-14 Tcl Communication Ltd Control and data transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013192601A2 (fr) * 2012-06-22 2013-12-27 Qualcomm Incorporated Transmission de données dans une agrégation de porteuses avec différentes configurations de porteuses

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111202B (zh) * 2010-02-05 2014-05-21 电信科学技术研究院 一种天线校准的方法及装置
CN103138885B (zh) * 2011-12-02 2017-08-11 株式会社Ntt都科摩 下行控制信息的发送、检测方法、网络侧装置及用户设备

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013192601A2 (fr) * 2012-06-22 2013-12-27 Qualcomm Incorporated Transmission de données dans une agrégation de porteuses avec différentes configurations de porteuses

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CATT ET AL: "Way forward on FDD Scell PDSCH HARQ timing with TDD as Pcell", vol. RAN WG1, no. Prague, Czech Republic; 20140210 - 20140214, 17 February 2014 (2014-02-17), XP050770809, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_76/Docs/> [retrieved on 20140217] *
FIBERHOME: "DL HARQ timing for TDD-FDD CA with self-carrier scheduling when TDD is PCell", vol. RAN WG1, no. Shenzhen, China; 20140331 - 20140404, 21 March 2014 (2014-03-21), XP050813548, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_76b/Docs/> [retrieved on 20140321] *
YONG LI ET AL: "Control Channel Design for Carrier Aggregation between LTE FDD and LTE TDD Systems", VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING), 2012 IEEE 75TH, IEEE, 6 May 2012 (2012-05-06), pages 1 - 5, XP032202278, ISBN: 978-1-4673-0989-9, DOI: 10.1109/VETECS.2012.6239853 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106470050A (zh) * 2015-08-12 2017-03-01 中兴通讯股份有限公司 实现基站间协作多点CoMP下行传输的方法及相应的基站
CN106470050B (zh) * 2015-08-12 2021-01-22 中兴通讯股份有限公司 实现基站间协作多点CoMP下行传输的方法及相应的基站
CN111869122A (zh) * 2018-03-30 2020-10-30 华为技术有限公司 天线选择的方法及相关装置
EP3761521A4 (fr) * 2018-03-30 2021-03-03 Huawei Technologies Co., Ltd. Procédé pour sélection d'antenne et dispositif associé
CN111869122B (zh) * 2018-03-30 2022-05-13 华为技术有限公司 天线选择的方法及相关装置

Also Published As

Publication number Publication date
CN104348582B (zh) 2018-10-30
CN104348582A (zh) 2015-02-11
TW201519680A (zh) 2015-05-16

Similar Documents

Publication Publication Date Title
US12185311B2 (en) Method and device for sending index information, storage medium, and electronic device
WO2015019175A1 (fr) Procédé et appareil d&#39;émission d&#39;informations de commande
US10171226B2 (en) Systems and methods for frequency division duplex communication
CN102025467B (zh) 一种反馈信息的传输方法及传输装置
JP6369458B2 (ja) クロス−サブフレームスケジューリングの有無両方で、フレキシブル−ｔｄｄシステムにおけるｄｌ伝送のためのｄｌスケジューリング及びｈａｒｑ−ａｃｋフィードバック
US11743868B2 (en) Short physical uplink shared channel arrangement
US20210250944A1 (en) Method and apparatus for transmitting control information for network cooperative communication
JP2021153301A (ja) スケーラブルフィードバックレポート
US20180048447A1 (en) User equipments, base stations and methods
AU2015409323B2 (en) Control Information Sending Method and Communications Device
JP2020506574A5 (fr)
US9553685B2 (en) PHICH-less operation for uplink-downlink configuration zero
JP2025131872A (ja) 端末装置、ネットワーク装置、及び通信方法
CN113796032B (zh) 用于半静态harq-ack码本确定的方法及设备
WO2015106554A1 (fr) Procédé et dispositif de gestion de ressources, et support de stockage informatique
JP2018531551A6 (ja) 短縮物理アップリンク共有チャネル・アレンジメント
US20160057743A1 (en) Terminal device, base station device, communication method, and integrated circuit
CN106301702A (zh) 一种增强载波聚合系统的harq-ack传输方法和设备
JP2016532350A (ja) 制御情報送信方法、ユーザ機器、および基地局
CN105991260A (zh) 传输针对大规模载波聚合的下行控制信令的方法和装置
US11160100B2 (en) Uplink control information multiplexing
US20170135073A1 (en) Hybrid Automatic Repeat Request for Enhanced Interference Management and Traffic Adaptation
CN120019600A (zh) 基于子帧的混合自动重传请求反馈
WO2015085477A1 (fr) Synchronisation souple de harq
KR102214648B1 (ko) 이동 통신 시스템에서 스케줄링 및 피드백 방법 및 장치

Legal Events

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

Ref document number: 14799881

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14799881

Country of ref document: EP

Kind code of ref document: A1