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WO2019019083A1 - Rétroaction harq-ack pour transmission par canal physique partagé montant (pusch) pour emtc (communication améliorée de type machine) - Google Patents

Rétroaction harq-ack pour transmission par canal physique partagé montant (pusch) pour emtc (communication améliorée de type machine) Download PDF

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Publication number
WO2019019083A1
WO2019019083A1 PCT/CN2017/094642 CN2017094642W WO2019019083A1 WO 2019019083 A1 WO2019019083 A1 WO 2019019083A1 CN 2017094642 W CN2017094642 W CN 2017094642W WO 2019019083 A1 WO2019019083 A1 WO 2019019083A1
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WO
WIPO (PCT)
Prior art keywords
search space
harq
common search
user
control information
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/CN2017/094642
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English (en)
Inventor
Chunhai Yao
Rapeepat Ratasuk
David Bhatoolaul
Nitin MANGALVEDHE
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.)
Nokia Technologies Beijing Co Ltd
Nokia Technologies Oy
Original Assignee
Nokia Technologies Beijing Co Ltd
Nokia Technologies Oy
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 Nokia Technologies Beijing Co Ltd, Nokia Technologies Oy filed Critical Nokia Technologies Beijing Co Ltd
Priority to PCT/CN2017/094642 priority Critical patent/WO2019019083A1/fr
Publication of WO2019019083A1 publication Critical patent/WO2019019083A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • 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

Definitions

  • the present invention relates to providing HARQ-ACK feedback for PUSCH transmission for eMTC.
  • eMTC In 3GPP, for accommodating machine type communication, eMTC has been developed.
  • At least some embodiments of the invention aim at saving UE power consumption and reducing signaling overhead in eMTC.
  • control channel transmitter as set out in the appended claims.
  • backward compatibility with legacy eMTC channels such as MPDCCH, PBCH, PSS/SSS is provided
  • UE implementation complexity is kept Iow, for example by not increasing the UE blind decoding number for MPDCCH detection, and signaling overhead is minimized as much as possible.
  • Fig. 1 shows a schematic block diagram illustrating a network device and UEs, in which examples of embodiments of the invention are implementable.
  • Fig. 2 shows a schematic block diagram illustrating a configuration of control units in which examples of embodiments of the invention are implementable.
  • FIG. 3 shows flowcharts illustrating processes of examples of embodiments of the invention.
  • Fig. 4 illustrates an example of a search space structure according to an embodiment of the invention.
  • Fig. 1 shows a schematic block diagram illustrating a network device 10 and UEs 20, in which examples of embodiments of the invention are implementable.
  • the network device 10 comprises a control channel transmitter.
  • the network device 10 comprises an eNB of an LTE system.
  • the UEs 20 shown in Fig. 1 comprise UE_1, UE_2,..., UE_M, which form a group of eMTC UEs.
  • the UEs 20 receive control information regarding PUSCH (re-) transmissions from the network device 10, which provides HARQ-ACK feedbacks on the PUSCH transmissions.
  • machine type communications refer to direct communication between devices using any communications channel, including wired and wireless.
  • MTC can include industrial instrumentation, enabling a sensor or meter to communicate the data it records (such as temperature, inventory level, etc. ) to application software that can use it (for example, adjusting an industrial process based on temperature or placing orders to replenish inventory) .
  • MTC are characterized by fully automatic data generation, exchange, processing and actuation among intelligent machines, without or with low intervention of humans.
  • hybrid automatic repeat request is an acknowledged retransmission scheme, a combination of high-rate forward error-correcting coding and automatic repeat request (ARQ) error-control.
  • ARQ automatic repeat request
  • ED error-detecting
  • CRC cyclic redundancy check
  • Receivers detecting a corrupted message will request a new message from the sender.
  • FEC forward error correction
  • FIG. 2 For illustrating a simplified block diagram of various electronic devices that are suitable for use in practicing the exemplary embodiments of this invention.
  • Fig. 2 shows a control unit 1001 which is part of and/or is used by the network device 10, e.g. the control channel transmitter.
  • the control unit 1001 includes processing resources (processing circuitry) 11, memory resources (memory circuitry) 12 that store a program, and interfaces (interface circuitry) 13, which are coupled via a connection 14.
  • the interfaces 13 include a suitable radio frequency (RF) transceiver (not shown) coupled to one or more antennas (not shown) for bidirectional wireless communications over one or more wireless links 1020 with the UEs 20.
  • RF radio frequency
  • Fig. 2 shows a control unit 2001 which is part of and/or is used by any one of the UEs 20.
  • the control unit 2001 includes processing resources (processing circuitry) 21, memory resources (memory circuitry) 22 that store a program, and interfaces (interface circuitry) 23, which are coupled via a connection 24.
  • the interfaces 23 include a suitable radio frequency (RF) transceiver (not shown) coupled to one or more antennas (not shown) for bidirectional wireless communications over one or more wireless links 1020 with the network device 10.
  • RF radio frequency
  • connection or coupling means any connection or coupling, either direct or indirect, between two or more elements, and may encompass the presence of one or more intermediate elements between two elements that are ′′connected′′ or ′′coupled′′ together.
  • the coupling or connection between the elements can be physical, logical, or a combination thereof.
  • two elements may be considered to be ′′connected′′ or ′′coupled′′ together by the use of one or more wires, cables and printed electrical connections, as well as by the use of electromagnetic energy, such as electromagnetic energy having wavelengths in the radio frequency region, the microwave region and the optical (both visible and invisible) region, as non-limiting examples.
  • At least one of the programs stored in the memory resources 12, 22 is assumed to include program instructions that, when executed by the associated processing resources 11, 21, enable the electronic device to operate in accordance with the exemplary embodiments of this invention.
  • Inherent in the processing resources 11, 21 is a clock to enable synchronism among the various apparatus for transmissions and receptions within the appropriate time intervals and slots required, as the scheduling grants and the granted resources/subframes are time dependent.
  • the transceivers of the interfaces 13, 23 include both transmitter and receiver, and inherent in each is a modulator/demodulator commonly known as a modem.
  • the processing resources 11 also are assumed to include a modem to facilitate communication over a (hardwire) link (not shown) between the network device 10 and other network devices (not shown) .
  • the exemplary embodiments of this invention may be implemented by computer software stored in the memory resources 12 and executable by the processing resources 11 of the network device 10 and similar for the other memory resources 22 and processing resources 21 of the UE 20, or by hardware, or by a combination of software and/or firmware and hardware in any or all of the devices shown.
  • the various embodiments of the UE 20 can include, but are not limited to, mobile stations, cellular telephones, personal digital assistants (PDAs) having wireless communication capabilities, portable computers having wireless communication capabilities, image capture devices such as digital cameras having wireless communication capabilities, gaming devices having wireless communication capabilities, music storage and playback appliances having wireless communication capabilities, Internet appliances permitting wireless Internet access and browsing, as well as portable units or terminals that incorporate combinations of such functions.
  • PDAs personal digital assistants
  • portable computers having wireless communication capabilities
  • image capture devices such as digital cameras having wireless communication capabilities
  • gaming devices having wireless communication capabilities
  • music storage and playback appliances having wireless communication capabilities
  • Internet appliances permitting wireless Internet access and browsing, as well as portable units or terminals that incorporate combinations of such functions.
  • the memory resources 12, 22 may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the processing resources 11, 21 may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on a multi core processor architecture, as non limiting examples.
  • FIG. 3 illustrating flowcharts of processes performed by the network device 10 and the UE 20 according to at least some embodiments of the invention.
  • process 1 shown in Fig. 3 is performed by the control channel transmitter of the network device 10.
  • control information such as DCl
  • HARQ-ACK indications convey information regarding successful decoding of packets by the network device 10 and request PUSCH (re-) transmissions from the UEs to the network device 10 based on these indications.
  • the generated control information is inserted into subframes of an MPDCCH, e.g. into subframes configured for MPDCCH transmission.
  • the subframes are included in a common search space of the MPDCCH, which is common to the UEs 20, and the common search space is inserted into a period of a user-specific search space of the MPDCCH, which is specific to each of the UEs 20.
  • an MPDCCH search space is a set of MPDCCH candidates for a UE to monitor. It is composed by the aggregation level and repetition level. Each MPDCCH candidate is repeated in a set of consecutive subframes in an aggregation level.
  • an MPDCCH search space at aggregation level L′ ⁇ ⁇ 2, 4, 8, 16, 24 ⁇ and repetition level R ⁇ ⁇ 1, 2, 4, 8, 16, 32, 64, 128, 256 ⁇ is defined by a set of MPDCCH candidates where each candidate is repeated in a set of R consecutive BL/CE downlink subframes starting with subframe k.
  • step S1033 the MPDCCH is transmitted. Thereafter, process 1 ends.
  • process 2 shown in Fig. 3 is performed by any one of the UEs 20.
  • control information (e.g. the control information generated in S1031) is acquired from a common search space of an MPDCCH (e.g. the MPDCCH transmitted in S1033) .
  • the control information comprises HARQ-ACK indications for a plurality of UEs (e.g. the UEs 20) .
  • the HARQ-ACK indications request PUSCH retransmissions from the UEs.
  • the control information is acquired in a period of a user-specific search space of the MPDCCH, which is specific to the plurality of UEs.
  • step S2032 based on the acquired control information, e.g., HARQ-ACK indication, PUSCH retransmission is performed or PUSCH transmission is stopped. Thereafter, process 2 ends.
  • the acquired control information e.g., HARQ-ACK indication
  • process 1 multiple HARQ-ACK feedbacks for different users are multiplexed on the eMTC downlink control channel, i.e., MPDCCH, and a common search space is introduced. Using this search space allows the network device to better fine-tune and utilize multiple HARQ-ACK feedbacks.
  • eMTC downlink control channel i.e., MPDCCH
  • the introduced common search space is inserted in an existing MPCCH search space period, such as inserted in UE specific search space period.
  • the UE e.g. any one of the UEs 20
  • the introduced common search space shares the same narrowband as the UE specific search space for a category M1 UE.
  • the introduced common search space is configured in a different narrowband from the UE specific search space, to take advantage of either or both of the 24-PRB wideband and faster frequency band retuning capabilities.
  • the introduced common search space is configured in a different narrowband from the UE specific search space, to take advantage of either or both of the wideband and faster frequency band retuning capabilities.
  • narrowband refers to a channel in which the bandwidth of the message does not significantly exceed the channel′s coherence bandwidth.
  • the configuration of the introduced search space is signaled to the UE via either broadcast channel or using dedicated Radio Resource Control (RRC) configuration.
  • RRC Radio Resource Control
  • a G factor and r_max are signaled to the UE via System Information Block.
  • the search space can also be enabled or disabled implicitly via the presence of such configuration parameters.
  • multiple search space configurations may be defined, and UE is configured via higher layer signaling which configuration to use.
  • r_max is the maximum number of MPDCCH repetition for the USS.
  • a PUSCH transmission gap is configured to allow the UE check the MPDCCH for HARQ-ACK information.
  • the gap is defined by a gap period and gap length.
  • this transmission gap may coincide with uplink compensation gap configured for UE to perform time and frequency tracking.
  • this transmission gap may coincide with the common search space.
  • UE monitors the common search space for HARQ-ACK only after PUSCH transmission or during PUSCH transmission gap.
  • the UE continues to monitor the common search space for a period of time, for example given by number of search space occurrences.
  • the UE may drop monitoring the common search space.
  • the introduced common search space and the UE specific search space are distinguished in time domain.
  • the same G factor and r_max are applied to both search spaces, and a subframe offset is introduced for the introduced common search space relative to the UE specific search space.
  • a window is defined within which the UE checks the introduced common search space, and the G factor and r_max are configured independently for the introduced common search space.
  • the introduced common search space can be exactly the same as the type-0 common search space, so the legacy search space can be re-used.
  • the UE decodes the common search space blindly, and the blind decoding number is four, which is the same as that of MPDCCH common search space.
  • a downlink control information format (e.g. DCl format) is introduced and scrambled with eMTC-HARQ-RNTI.
  • the introduced DCl format is formed by multiple HARQ-ACK indications for different UEs, e.g. HARQ-ACK indication 1 for UE_1 of Fig. 1, HARQ-ACK indication 2 for UE_2, ...., HARQ-ACK indication M for UE_M.
  • each user equipment that will receive its HARQ-ACK indication in control information format scrambled with eMTC-HARQ-RNTI is preconfigured with a unique HARQ-ACK indication field index.
  • the network device may perform configuration of the user equipments with a HARQ-ACK indication field index using higher-layer signaling.
  • multiple eMTC-HARQ-RNTI values may be defined. Different UEs may be grouped together, for example based on required r_max, and assigned the same eMTC-HARQ-RNTI value.
  • the control information is composed by HARQ-ACK indication fields for each of the plurality of user equipments, and each HARQ-ACK indication field includes a HARQ-ACK indication, a HARQ process identification, a PUSCH re-transmission repetition number, or a starting subframe of PUSCH re-transmission.
  • the PUSCH retransmission repetition number is determined for the HARQ process identification.
  • each of the HARQ-ACK indication fields is identified by the configured HARQ-ACK indication field index.
  • the HARQ-ACK indication field of the control information has a size of 6 bits: 1 bit for HARQ-ACK feedback, e.g., indicating ACK or NACK, and other 3 bits for the corresponding HARQ process ID for a given UE in CE mode A, and 2 bits to indicate the repetition number for re-transmission if the feedback is NACK, otherwise, 00 is filled in the 2 bits.
  • the HARQ-ACK indication field of the control information has a size of 4 bits: 1 bit for HARQ-ACK feedback, e.g., indicating ACK or NACK, and other 1 bit for corresponding HARQ process ID for a given UE in CE mode B, and 2 bits to indicate the repetition number for re-transmission if the feedback is NACK, otherwise, 00 is filled in for the 2 bits.
  • the number M of HARQ-ACK feedback indications which can be included into the control information is calculated as follows:
  • M floor (size of introduced DCl format/number of bits of HARQ-ACK indication field)
  • the UE 20 starts PUSCH re-transmission at a subframe n+4, where n is the last subframe of MPDCCH in the introduced common search space.
  • the DCl contains information about when PUSCH retransmission is to be started. For example, four values are defined corresponding to ⁇ n+4, n+8, n+12, n+16 ⁇ and one value is indicated in the DCl.
  • HARQ-ACK indications for different eMTC UEs are multiplexed in one MPDCCH.
  • FIG. 4 An example of a search space structure according to an implementation of the present invention is shown in Fig. 4.
  • the repetitions of the MPDCCH, which correspond to a maximum value of r_max, are contained at the beginning of each USS, and the introduced common search space (which is referred to as ′′new SS′′ in Fig. 4) is inserted after the MPDCCH repetitions in the period of the USS.
  • the UE specific search space (USS) periodicity is configured with more subframes than UE specific search space, e.g., r_max.
  • UE specific search space e.g., r_max.
  • UE blind decoding number is not increased, as the UE detects the introduced common search space in the specific subframes, and does not decode both the introduced common search space and the USS in the same subframe.
  • PUSCH early termination is enabled. For example, as PUSCH repetition number cannot be estimated accurately by the network device 10 (e.g. eNB) , PUSCH is likely to be configured with a larger repetition number than the number actually needed for decoding.
  • the network device 10 may correctly decode a PUSCH transmission already before the introduced common search space starts, and in this case the network device 10 can send the ACK via the MPDCCH in the introduced common search space.
  • the UE 20 stops the PUSCH transmission after receiving the ACK from the network device 10. Thus, UE transmission power can be saved. If the PUSCH transmission is not correctly decoded, NACK will be sent by the network device 10 with a newly set repetition number, which is beneficial to reduce the repetition for re-transmission.
  • signaling overhead for PUSCH retransmission is reduced, and the UE blind decoding number is reasonable.
  • PUSCH early termination can be achieved, and PUSCH retransmission triggered at the UE is more efficient with exact repetition number indication.
  • an apparatus which comprises means for generating control information out of indications of hybrid automatic request-acknowledgment, HARQ-ACK, for a plurality of user equipments, the indications of HARQ-ACK requesting retransmission on a physical uplink sharing channel, PUSCH, means for inserting the generated control information into subframes of a physical downlink control channel for machine type communication, MPDCCH, wherein the subframes are included in a common search space of the MPDCCH, which is common to the user equipments, wherein the common search space is inserted into a period of a user-specific search space of the MPDCCH, which is specific to each of the plurality of user equipments, and means for transmitting the MPDCCH.
  • the apparatus comprises means for configuring each of the plurality of user equipments with a HARQ-ACK indication field index using higher-layer signaling.
  • the apparatus comprises means for signaling the common search space to the plurality of user equipments via broadcast channel or using dedicated radio resource control configuration.
  • the apparatus comprises means for signaling a G factor and r_max to the plurality of user equipments via system information block.
  • the apparatus comprises means for defining multiple configurations of the common search space and means for configuring the plurality of user equipments via higher layer signaling which configuration to use.
  • the apparatus comprises means for configuring a PUSCH transmission gap for the plurality of user equipments for allowing the plurality of user equipments check the MPDCCH for the control information.
  • the apparatus comprises means for configuring the common search space to share the same narrowband as the user-specific search space.
  • the apparatus comprises means for configuring the common search space on a narrowband different from that of the user-specific search space.
  • the apparatus comprises means for configuring the common search space by applying the same G factor and the same r_max to the common search space and the user-specific search space, and means for configuring a subframe offset for the common search space relative to the user-specific search space.
  • the apparatus comprises means for configuring the common search space by defining a time window for the common search space, and means for configuring a G factor and r_max for the common search space independently from those of the user-specific search space.
  • the means for configuring the common search space comprises means for setting the G factor and r_max such that the common search space is type-0 common search space.
  • the means for generating the control information comprises means for scrambling the control information with an evolved machine-type communication-hybrid automatic request-radio network temporary identity, eMTC-HARQ-RNTI.
  • the apparatus comprises means for determining the PUSCH retransmission repetition number for the HARQ process identification.
  • the above-described means of the apparatus are implemented by the processing resources (processing circuitry) 11, the memory resources (memory circuitry) 12 and the interfaces (interface circuitry) 13 of the control unit 10.
  • a user equipment of a plurality of user equipments comprising means for acquiring control information from a common search space of a physical downlink control channel for machine type communication, MPDCCH, in a period of a user-specific search space of the MPDCCH, which is specific to each of the plurality of user equipments, wherein the control information comprises indications of hybrid automatic request-acknowledgment, HARQ-ACK, and means for performing PUSCH retransmission or stopping PUSCH transmission based on the acquired control information.
  • MPDCCH physical downlink control channel for machine type communication
  • the user equipment comprises an evolved machine-type communication user equipment, and comprises means for decoding the common search space blindly, wherein the blind decoding number is four.
  • control information is composed by HARQ-ACK indication fields for each of the plurality of user equipments, and each of the plurality of user equipments is preconfigured with a unique HARQ-ACK indication field index, and the user equipment comprises means for identifying the user equipment′s HARQ-ACK indication field by the user equipment′s HARQ-ACK indication field index.
  • the user equipment comprises means for starting the PUSCH retransmission at a subframe n+4, where n is the last subframe of MPDCCH in the common search space.
  • the user equipment comprises means for acquiring retransmission information from the control information, and means for starting the PUSCH retransmission at a subframe indicated in the retransmission information.
  • the user equipment comprises means for monitoring the user-specific search space in a period of the user-specific search space following the period of acquiring the control information from the common control channel.
  • the user equipment comprises means for monitoring the common search space for the control information after PUSCH transmission or during PUSCH transmission gap.
  • the user equipment comprises means for continuing monitoring the common search space for a period of time.
  • the user equipment comprises means for dropping monitoring the common search space in case of collision between the common search space and another search space.
  • the above-described means of the user equipment are implemented by the processing resources (processing circuitry) 21, the memory resources (memory circuitry) 22 and the interfaces (interface circuitry) 23 of the control unit 20.

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

Abstract

L'invention concerne un émetteur de canal de commande qui génère (S1031) des informations de commande parmi des indications de HARQ-ACK pour une pluralité d'équipements d'utilisateurs, les indications de HARQ-ACK demandant une retransmission sur un PUSCH, insère (S1032) les informations de commande générées dans des sous-trames d'un MPDCCH qui sont incluses dans un espace de recherche commun du MPDCCH, l'espace de recherche commun étant inséré dans une période d'un espace de recherche spécifique à l'utilisateur du MPDCCH, et transmet (S1033) sur le MPDCCH. Un équipement utilisateur de la pluralité d'équipements utilisateurs acquiert (S2031) les informations de commande et effectue une retransmission PUSCH (S2032) ou arrête la transmission PUSCH sur la base des informations de commande acquises.
PCT/CN2017/094642 2017-07-27 2017-07-27 Rétroaction harq-ack pour transmission par canal physique partagé montant (pusch) pour emtc (communication améliorée de type machine) Ceased WO2019019083A1 (fr)

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PCT/CN2017/094642 WO2019019083A1 (fr) 2017-07-27 2017-07-27 Rétroaction harq-ack pour transmission par canal physique partagé montant (pusch) pour emtc (communication améliorée de type machine)

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PCT/CN2017/094642 WO2019019083A1 (fr) 2017-07-27 2017-07-27 Rétroaction harq-ack pour transmission par canal physique partagé montant (pusch) pour emtc (communication améliorée de type machine)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160270038A1 (en) * 2015-03-11 2016-09-15 Samsung Electronics Co., Ltd Transmissions of downlink control channels for low cost ues
CN106489246A (zh) * 2014-08-01 2017-03-08 英特尔Ip公司 用于窄带部署的pdcch设计
CN106559188A (zh) * 2015-09-25 2017-04-05 华为技术有限公司 一种数据传输的方法及基站
CN106717031A (zh) * 2014-09-25 2017-05-24 株式会社Kt Mtc ue发送/接收信号的方法及其装置
US20170164407A1 (en) * 2014-06-26 2017-06-08 Lg Electronics Inc. Method for transmitting and receiving control information for broadcast multicast service, and device therefor
US20170171842A1 (en) * 2015-12-11 2017-06-15 Lg Electronics Inc. Method and user equipment for receiving dowlink channel, and method and base station for transmitting downlink channel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170164407A1 (en) * 2014-06-26 2017-06-08 Lg Electronics Inc. Method for transmitting and receiving control information for broadcast multicast service, and device therefor
CN106489246A (zh) * 2014-08-01 2017-03-08 英特尔Ip公司 用于窄带部署的pdcch设计
CN106717031A (zh) * 2014-09-25 2017-05-24 株式会社Kt Mtc ue发送/接收信号的方法及其装置
US20160270038A1 (en) * 2015-03-11 2016-09-15 Samsung Electronics Co., Ltd Transmissions of downlink control channels for low cost ues
CN106559188A (zh) * 2015-09-25 2017-04-05 华为技术有限公司 一种数据传输的方法及基站
US20170171842A1 (en) * 2015-12-11 2017-06-15 Lg Electronics Inc. Method and user equipment for receiving dowlink channel, and method and base station for transmitting downlink channel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SONY: "Considerations on PUSCH HARQ Feedbacks", 3GPP TSG RAN WG1 MEETING #83 R1-156699, 22 November 2015 (2015-11-22), XP051003084 *

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