WO2018141201A1 - Information transmission method and apparatus and storage medium - Google Patents

Information transmission method and apparatus and storage medium Download PDF

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Publication number
WO2018141201A1
WO2018141201A1 PCT/CN2018/072583 CN2018072583W WO2018141201A1 WO 2018141201 A1 WO2018141201 A1 WO 2018141201A1 CN 2018072583 W CN2018072583 W CN 2018072583W WO 2018141201 A1 WO2018141201 A1 WO 2018141201A1
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WO
WIPO (PCT)
Prior art keywords
pucch
symbols
slots
symbol
uci
Prior art date
Application number
PCT/CN2018/072583
Other languages
French (fr)
Inventor
Hua Xu
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
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
Priority to EP18747386.3A priority Critical patent/EP3566521B1/en
Priority to MX2019009236A priority patent/MX2019009236A/en
Priority to JP2019542206A priority patent/JP2020508598A/en
Priority to SG11201907171RA priority patent/SG11201907171RA/en
Application filed by Guangdong Oppo Mobile Telecommunications Corp., Ltd. filed Critical Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Priority to BR112019015952-5A priority patent/BR112019015952A2/en
Priority to CA3052509A priority patent/CA3052509A1/en
Priority to CN201880005385.7A priority patent/CN110169176B/en
Priority to RU2019127029A priority patent/RU2019127029A/en
Priority to AU2018214736A priority patent/AU2018214736A1/en
Priority to KR1020197022961A priority patent/KR20190113808A/en
Publication of WO2018141201A1 publication Critical patent/WO2018141201A1/en
Priority to IL268448A priority patent/IL268448A/en
Priority to US16/530,763 priority patent/US10869301B2/en
Priority to PH12019501789A priority patent/PH12019501789A1/en
Priority to US17/030,345 priority patent/US11432271B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012Hopping in multicarrier systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present disclosure relates to the technical field of communications, and particularly an information transmission method and apparatus and storage medium.
  • Physical Uplink Control Channel is transmitted in a full uplink subframe with fixed number of symbols (e.g., 14 symbols) at the edges of system bandwidth, and is used to carry uplink control information (UCI) such as Ack/NACK for downlink Physical Downlink Shared Channel (PDSCH) transmission and channel state information (CSI) feedback from the User Equipment (UE) .
  • UCI uplink control information
  • PDSCH Physical Downlink Shared Channel
  • CSI channel state information
  • An objective of this disclosure is to provide an information transmission method, which is capable of achieving low latency of services.
  • the method includes that an RS symbol is placed at beginning of a PUCCH, UCI symbols are placed after the RS symbol in the PUCCH, and the PUCCH is transmitted.
  • the PUCCH may be transmitted in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; or the PUCCH may be transmitted in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; or the PUCCH may be transmitted in multiple slots comprising one or more slots of the first type and one or more slots of the second type.
  • the first RS symbol may be transmitted at the beginning of the PUCCH, in each of the slots of the first or second type.
  • a second RS symbol may further be placed at end of the PUCCH, in each of the slots of the first or second type; and/or one or more third RS symbols are placed evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
  • one or two RS symbols may be placed immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
  • Space-Time Block Coding may be performed on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  • an orthogonal sequence may be generated for each of modulated symbols carrying UCI in the PUCCH, wherein the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2; the performing STBC on at least a portion of UCI symbols may include: for (2k-1) th and (2k) th UCI symbols in time, the elements of the orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols are directly used to build a first set of pairs of STBC codes, and conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols is performed to build a second set of pairs of STBC codes; the PUCCH with the first set of pairs of STBC codes may be transmitted via a first antenna, and the PUCCH with the second set of pairs of STBC codes may be transmitted via a second antenna, where k is a positive integer and smaller than or equal to m/2.
  • Cyclic Delay Diversity CDD
  • SORTD Space Orthogonal-Resource Transmit Diversity
  • the PUCCH transmitted in a single one of the first or second slots may be divided into a first portion and a second portion; the first portion of the PUCCH may be transmitted in a first frequency band; and the second portion of the PUCCH may be transmitted in a second frequency band.
  • the PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
  • the apparatus includes a processor; and one or more modules stored on a memory and executable by the processor, the one or more modules include: a placement module, configured to place a first RS symbol at beginning of a Physical Uplink Control Channel (PUCCH) , and place UCI symbols after the first RS symbol in the PUCCH; and a transmitter, configured to transmit the PUCCH.
  • a placement module configured to place a first RS symbol at beginning of a Physical Uplink Control Channel (PUCCH) , and place UCI symbols after the first RS symbol in the PUCCH
  • a transmitter configured to transmit the PUCCH.
  • the transmitter may be configured to perform one of the following: transmit the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; transmit the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and transmit the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type; and the RS placement module may be configured to place the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
  • the placement module may further be configured to perform at least one of the following: place a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and place one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
  • the placement module may further be configured to place one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
  • the one or more modules may further include a transmit diversity module, configured to perform Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  • STBC Space-Time Block Coding
  • the one or more modules may further include a sequence generation module configured to generate an orthogonal sequence for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2;
  • the transmit diversity module may be configured to: for (2k-1) th and (2k) th UCI symbols in time, directly use elements of the orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols to build a first set of pairs of STBC codes, and perform conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols to build a second set of pairs of STBC codes;
  • the transmitter may be configured to: transmit the PUCCH with the first set of pairs of STBC codes via a first antenna; and transmit the PUCCH with the second set of pairs of STBC codes via a second antenna, where k is a positive integer and smaller than or equal to m/2
  • the transmit diversity module may further be configured to perform Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
  • CDD Cyclic Delay Diversity
  • SORTD Space Orthogonal-Resource Transmit Diversity
  • the transmitter may further be configured to: divide the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion; transmit the first portion of the PUCCH in a first frequency band; and transmit the second portion of the PUCCH in a second frequency band.
  • the PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
  • the disclosure also provides a non-transitory computer readable storage radium, having instructions stored therein, which when executed by a processor, causes the processor to execute the method as described above.
  • front-loaded RS is used in RS design for PUCCH with long duration, which achieves low latency of services in the 5G TR system.
  • Rest RS symbols may be placed with one DMRS symbol for every n UCI symbols, where n is an integer greater than or equal to 1.
  • Frequency hopping may also be used for PUCCH with long duration, thus obtaining more frequency diversity gain.
  • STBC When STBC is used as transmit diversity of PUCCH with long duration, it would bring superior transmit diversity gain, does not require additional sequence resources, and improve coverage and robustness performances.
  • FIG. 1 illustrates a typical PUCCH transmission scheme in the 4G LTE system
  • FIG. 2 illustrates several slot structure examples in the 5G NR system
  • FIG. 3 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure
  • FIG. 4A illustrates some examples of RS locations for PUCCH with long duration in one slot according to the disclosure
  • FIG. 4B illustrates an example of RS locations for PUCCH with long duration in multiple uplink only slots according to the disclosure
  • FIG. 5 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure
  • FIG. 6 illustrates a schematic view of building STBC codes as transmit diversity for PUCCH with long duration according to the disclosure
  • FIG. 7 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure.
  • FIG. 8A illustrates an example of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure
  • FIG. 8B illustrates another example of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure
  • FIG. 8C illustrates an example of intra-slot hopping for PUCCH with long duration in an uplink-centric slot according to the disclosure
  • FIG. 9 illustrates a block diagram of an information transmission apparatus according to an embodiment of the disclosure.
  • FIG. 10 illustrates a simplified structure diagram of a UE according to an embodiment of the disclosure.
  • a user equipment which can be a wireless terminal.
  • the UE can also be called a system, device, subscriber unit, subscriber station, mobile station, mobile, mobile device, remote station, remote terminal, access terminal, user terminal, terminal, communication device, user agent, or user device.
  • the UE may be a cellular telephone, a satellite phone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , a handheld device having wireless connection capability, a computing device, or other processing devices connected to a wireless modem.
  • SIP Session Initiation Protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • a base station may be utilized for communicating with wireless terminal (s) and may also be referred to as an access point, a Node B, evolved Node B (eNB) , H (e) NB, or some other terminology.
  • FIG. 2 illustrates several slot structure examples in the 5G NR system.
  • the slot may be classified into uplink only slot, uplink-centric slot and downlink-centric slot.
  • the PUCCH with long duration may be transmitted in the middle part of the system bandwidth (shown in FIG. 2) or the edges of the system bandwidth (not shown) , or the like.
  • symbols for both UL transmission and downlink (DL) transmission are included in the uplink centric slot, where there are more uplink symbols, there is a guard period (GP) between DL/UL transmission to allow UE to switch from DL reception to UL transmission, and the PUCCH with long duration may be transmitted the middle part of the system bandwidth (shown in FIG. 2) or the edges of the system bandwidth (not shown) , or the like.
  • GP guard period
  • a downlink-centric slot For a downlink-centric slot, symbols for both UL transmission and downlink (DL) transmission are included in the downlink-centric slot, where there are more downlink symbols, there is a guard period (GP) between DL/UL transmission to allow UE to switch from DL reception to UL transmission.
  • GP guard period
  • the downlink-centric slot may not be suitable for transmitting the PUCCH with long duration.
  • RS reference signal
  • UCI uplink control information
  • DMRS demodulation reference signal
  • pilot signal pilot signal
  • the front-loaded DMRS principle is used for PUCCH with long duration in the present invention.
  • an information transmission method may be applied in a UE. As shown in FIG. 3, the method may include the following steps.
  • step 301 an RS symbol is placed at beginning of a PUCCH, UCI symbols are placed after the RS symbol in the PUCCH.
  • the PUCCH is transmitted. Specifically, the PUCCH is transmitted to a base station which in communication with the UE.
  • step 301 may further include placement/locations of the rest RS symbols.
  • an RS symbol is placed at the end of the PUCCH, which improves the accuracy of demodulation of the UCI at the network side.
  • one or more RS symbols may be placed evenly in between the UCI symbols.
  • rest DMRS symbols are placed with one DMRS symbol for every n UCI symbols (where n is an integer greater than or equal to 1) , which will be later described in detail.
  • the locations for the RS symbols and for the DCI symbols in the PUCCH may be pre-determined. That is, the actions for placement of RS symbols and DCI symbols in step 301 described above in the various embodiments may be combined as desired, and executed in any order or concurrently.
  • FIG. 4A illustrates some examples of RS locations for PUCCH with long duration in one slot according to the disclosure.
  • a couple of slot structures are shown in the figure, which ranges from uplink-only slot to two uplink-centric slots with both DL/UL transmissions.
  • the principles of RS placement used in these examples include: 1) front loaded DMRS at the beginning of the PUCCH; and 2) the rest DMRS symbols are placed with one DMRS symbol for every n UCI symbols, where n is an integer greater than or equal to 1.
  • uplink only slots and uplink-centric slots are used for transmitting PUCCH with long duration.
  • each of the slots includes, seven symbols.
  • a slot may, of course, includes more or less than seven symbols.
  • all the symbols in the uplink only slot are uplink symbols and are dedicated for transmitting the PUCCH; the RS symbols are placed in the first symbol, the fourth symbol (which is in the middle of the slot) and the last symbol of the slot. It can be noticed that such a RS placement allow two contiguous UCI symbols in between two RS symbols, which facilitates the implementation of STBC transmit diversity scheme which will be later described in detail.
  • the uplink-centric slot shown in the middle of FIG. 4 there is one symbol (the first symbol) for DL transmission, five symbols for UL transmission, a guard period for switching from the DL transmission to UL transmission.
  • the five symbols are dedicated for transmitting the PUCCH, where RS symbols are placed in the first and fourth symbols. It can be noticed that such a RS placement also allow two contiguous UCI symbols in between two RS symbols; and meanwhile, there is an orphan DCI symbol left (i.e., the last DCI symbol) in the PUCCH.
  • the uplink-centric slot shown in the bottom of FIG. 4 there are two symbols (the first and second symbols) for DL transmission, four symbols for UL transmission, a guard period for switching from the DL transmission to UL transmission.
  • the four symbols are dedicated for transmitting the PUCCH, where RS symbols are placed in the first and fourth symbols, i.e., at the beginning and end of the PUCCH respectively. It can be noticed that such a RS placement also allows two contiguous UCI symbols in between two RS symbols.
  • FIG. 4B illustrates an example of RS locations for PUCCH with long duration in multiple uplink only slots according to the disclosure.
  • uplink-only slots are aggregated and assigned for PUCCH.
  • placement of DMRS provides quite even distribution of RS within the aggregated slots for PUCCH and allow two contiguous UCI symbols in between two DMRS symbols to facilitate the implementation of STBC transmit diversity scheme.
  • Another difference from the examples in FIG. 4A lies in that, two contiguous RS symbols (located in the fourth and fifth symbols) are placed immediately after every two contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol.
  • Another design aspect for the PUCCH with long duration accounts for improved coverage and robustness performance for the PUCCH.
  • control channel does not have re-transmission mechanism to correct/improve its first transmission.
  • the larger path loss could deteriorate the cell coverage.
  • the use of beamforming (BF) could compensate some of such path losses and improve the cell coverage.
  • BF in uplink may not be as effective as in downlink, therefore, cell coverage could be an issue.
  • DFT-S-OFDM Discrete Fourier Transform-Spread OFDM
  • orthogonal sequences like Zadoff-Chu set of sequences could be used as the modulation sequences for UCI and RS.
  • Such sequences are mapped along frequency and multiple sequences could be used to modulated UCIs from the same/different UEs before being multiplexed on the same symbol.
  • SFBC could not be used as the transmit diversity here.
  • STBC is proposed in the present invention to be used as transmit diversity for PUCCH with long duration.
  • an information transmission method is provided.
  • the method may be applied in a UE. As shown in FIG. 5, the method may include the following steps.
  • step 501 RS symbols and UCI symbols are placed in the PUCCH.
  • step 502 Space-Time Block Coding (STBC) is performed on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  • STBC Space-Time Block Coding
  • the PUCCH is transmitted. Specifically, the PUCCH is transmitted to a base station which in communication with the UE.
  • RS symbols and UCI symbols may refer to the embodiments described in connection with FIG. 3 and the examples described in connection with FIGs. 4A and 4B, and thus will be not elaborated here.
  • the UCI may be modulated using a modulation scheme such as Binary Phase Shift Keying (BPSK) or Quadrature Phase Shift Keying (QPSK) , and then an orthogonal sequence is generated for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2.
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • FIG. 6 illustrates a schematic view of building STBC codes as transmit diversity for PUCCH with long duration according to the disclosure.
  • the elements of the orthogonal sequences a i and b i are directly used to build a first set of pairs of STBC codes, for example, the first pair is (a 0 , b 0 )
  • the second pair is (a 1 , b 1 )
  • ...and the n th pair is (a n , b n ) .
  • conjugation transformation is performed on the elements of the generated orthogonal sequences a i and b i to build a second set of pairs of STBC codes, for example, the first pair is the second pair is ...and the
  • IFFT inverse Fast Fourier Transform
  • the UCI transmitted on PUCCH could be spread/repeated and transmitted on same/different symbols within the time-frequency resources assigned for PUCCH. a As the STBC codes areorthogonal, good diversity performance can be implemented and thus the coverage and robustness performance of PUCCH with long duration is improved; and additionally, no more sequence resources are need.
  • orphan symbol may be left in the time domain.
  • other transmit diversity schemes such as CDD or SORTD could be used for the orphan symbol.
  • the present invention further proposes frequency hopping as a yet another design aspect of PUCCH with long duration.
  • an information transmission method is provided.
  • the method may be applied in a UE. As shown in FIG. 7, the method may include the following steps.
  • step 701 RS symbols and UCI symbols are placed in the PUCCH.
  • step 702 the PUCCH is divided into at least two portions in time.
  • step 703 the PUCCH is transmitted in such a way that each portion is transmitted in a respective frequency band.
  • RS symbols and UCI symbols may refer to the embodiments described in connection with FIG. 3 and the examples described in connection with FIG. 4A and FIG. 4B, and thus will be not elaborated here.
  • step 502 may be executed before step 702.
  • step 502 may be executed before step 702.
  • FIG. 8A and FIG. 8B illustrate two examples of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure, which use the same RS designs as shown in FIG. 4A and FIG. 4B in the above. In general, it would be good to consider such operations when designing DMRS symbols and avoid to have two sets of DMRS design, one for non-hopping and one for hopping.
  • FIG. 8A and FIG. 8B illustrate two examples of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure, which use the same RS designs as shown in FIG. 4A and FIG. 4B in the above. In general, it would be good to consider such operations when designing DMRS symbols and avoid to have two sets of DMRS design, one for non-hopping and one for hopping.
  • FIG. 8A and FIG. 8B illustrate two examples of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure, which use the same RS designs as shown in
  • 8C illustrates an intra-slot hopping for PUCCH with long duration in an uplink-centric slot according to the disclosure. Since the uplink-centric slot have more uplink symbols available for PUCCH relative to the uplink-centric slots, it may be more worth applying intra-slot frequency hopping for the uplink-centric slot.
  • frequency hopping particularly the intra-slot hopping
  • the UCI in the PUCCH could be transmitted in different frequency bands, and thus the frequency diversity gain is improved.
  • an information transmission apparatus is provided according to some embodiments of the disclosure.
  • the information transmission apparatus 900 includes a placement module 901, and a transmission module 902.
  • the placement module 901 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a combination thereof. Therefore, the placement module 901 may be referred to as a placement circuit in some cases.
  • the transmission module 902 may be realized by a transmitter circuit including multiple antennas.
  • the placement module 901 may be configured to place a first RS symbol at beginning of a PUCCH, and place UCI symbols after the first RS symbol in the PUCCH.
  • the transmission module 902 may be configured to transmit the PUCCH.
  • the transmitter may be configured to perform one of the following: transmit the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; transmit the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and transmit the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type, and the placement module may be configured to place the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
  • the placement module 901 may further be configured to perform at least one of the following: place a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and place one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
  • the placement module 901 may further be configured to place one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
  • the apparatus 900 may further include a transmit diversity module 903, configured to perform Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  • STBC Space-Time Block Coding
  • transmit diversity module 903 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a combination thereof. Therefore, the transmit diversity module 903 may be referred to as a transmit diversity circuit or a transmit diversity coder in some cases.
  • the apparatus 900 may further include a sequence generation module 905.
  • the sequence generation module 905 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a combination thereof. Therefore, the sequence generation module 905 may be referred to as a sequence generation circuit or a sequence generator in some cases.
  • the sequence generation module 905 may be configured to for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2.
  • the transmit diversity module 904 is configured to: for (2k-1) th and (2k) th UCI symbols in time, where k is a positive integer and smaller than or equal to m/2, directly use elements of the orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols to build a first set of pairs of STBC codes, and perform conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1) th and (2k) th UCI symbols to build a second set of pairs of STBC codes.
  • the transmission module 903 may be configured to: transmit the PUCCH with the first set of pairs of STBC codes via a first antenna; and transmit the PUCCH with the second set of pairs of STBC codes via a second antenna.
  • the transmit diversity module 904 may further configured to perform Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
  • CDD Cyclic Delay Diversity
  • SORTD Space Orthogonal-Resource Transmit Diversity
  • the transmission module 903 may further be configured to divide the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion; transmit the first portion of the PUCCH in a first frequency band; and transmit the second portion of the PUCCH in a second frequency band.
  • the PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
  • FIG. 10 is a simplified structural diagram of a UE according to an embodiment of the disclosure.
  • the UE 1000 may include a processor 1001, a memory 1002, a transmitter 1003 having multiple antennas and other parts (e.g., a touch screen, not shown) .
  • the memory 1002 stores program instructions, which when executed by the processor 1001, cause the processor 1001 to perform at least one of the method described in connection with FIGs. 1, 5 and 7.
  • the apparatus as shown in Fig. 9 may be implemented in the UE 1000.
  • the computer programs can be stored in a computer readable storage medium and executed on a corresponding hardware platform (e.g., system, equipment, apparatus, device and the like) to perform one or a combination of the steps in the method embodiments.
  • a hardware platform e.g., system, equipment, apparatus, device and the like
  • ICs Integrated Circuits
  • Respective devices or functional modules or functional units in the above embodiments can be implemented using general computing devices, which can be located in a single computing apparatus or distributed on a network including multiple computing devices.
  • front-loaded RS is used in RS design for PUCCH with long duration, which achieves low latency of services in the 5G TR system.
  • STBC When STBC is used as transmit diversity of PUCCH with long duration, it would bring superior transmit diversity gain, does not require additional sequence resources, and improve coverage and robustness performances.
  • Rest RS symbols may be placed with one DMRS symbol for every n UCI symbols.
  • Frequency hopping may also be used for PUCCH with long duration, thus obtaining more frequency diversity gain.

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Abstract

Disclosed is an information transmission method. In the method, an RS symbol is placed at beginning of a PUCCH, UCI symbols are placed after the RS symbol in the PUCCH, and the PUCCH is transmitted. Also disclosed is an information transmission apparatus and computer readable storage medium.

Description

INFORMATION TRANSMISSION METHOD AND APPARATUS AND STORAGE MEDIUM
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims benefit of U.S. Provisional Application No. 62/454,216, filed on February 3, 2017, the contents of which are hereby incorporated by reference in its entirety.
TECHINAL FIELD
The present disclosure relates to the technical field of communications, and particularly an information transmission method and apparatus and storage medium.
BACKGROUND ART
In a Fourth-Generation (4G) Long Term Evolution (LTE) communication system, as shown in FIG. 1, Physical Uplink Control Channel (PUCCH) is transmitted in a full uplink subframe with fixed number of symbols (e.g., 14 symbols) at the edges of system bandwidth, and is used to carry uplink control information (UCI) such as Ack/NACK for downlink Physical Downlink Shared Channel (PDSCH) transmission and channel state information (CSI) feedback from the User Equipment (UE) .
When it comes to a Fifth-Generation (5G) New Radio (NR) communication system, due to the introduction of higher frequency, the larger path loss could deteriorate the cell coverage. In order to transmit uplink control information (UCI) for the cell edge UE or wherever UE has a coverage issue, a concept of PUCCH with long duration (also referred to as PUCCH with long format) is proposed. Here, the term “long duration” generally means that at least 4 symbols can be transmitted in the PUCCH. Accordingly, design of the PUCCH with long duration to achieve desired performances becomes an issue to be solved.
DISCLOSURE OF THE INVENTION
An objective of this disclosure is to provide an information transmission method, which is capable of achieving low latency of services. The method includes that an RS symbol is placed at beginning of a PUCCH, UCI symbols are placed after the RS symbol in the PUCCH, and the PUCCH is transmitted.
In some embodiments, the PUCCH may be transmitted in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; or the PUCCH may be transmitted in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; or the PUCCH may be transmitted in multiple slots comprising one or more slots of the first type and one or more slots of the second type. The first RS symbol may be transmitted at the beginning of the PUCCH, in each of the slots of the first or second type.
In some embodiments, a second RS symbol may further be placed at end of the PUCCH, in each of the slots of the first or second type; and/or one or more third RS symbols are placed evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
In some embodiments, one or two RS symbols may be placed immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
In some embodiments, before transmitting the PUCCH, Space-Time Block Coding (STBC) may be performed on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
In some embodiments, an orthogonal sequence may be generated for each of modulated symbols carrying UCI in the PUCCH, wherein the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2; the performing STBC on at least a portion of UCI symbols may include: for (2k-1)  th and (2k)  th UCI symbols in time, the elements of the orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols are directly used to build a first set of pairs of STBC codes, and conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols is performed to build a second set of pairs of STBC codes; the PUCCH with the first set of pairs of STBC codes may be transmitted via a first antenna, and the PUCCH with the second set of pairs of STBC codes may be transmitted via a second antenna, where k is a positive integer and smaller than or equal to m/2.
In some embodiments, when m is an odd number, before transmitting the PUCCH, Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) may be performed on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
In some embodiments, before the transmitting the PUCCH, the PUCCH transmitted in a single one of the first or second slots may be divided into a first portion and a second portion; the  first portion of the PUCCH may be transmitted in a first frequency band; and the second portion of the PUCCH may be transmitted in a second frequency band.
In some embodiments, the PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
Another objective of this disclosure is to provide an information transmission apparatus, which is capable of achieving low latency of services. The apparatus includes a processor; and one or more modules stored on a memory and executable by the processor, the one or more modules include: a placement module, configured to place a first RS symbol at beginning of a Physical Uplink Control Channel (PUCCH) , and place UCI symbols after the first RS symbol in the PUCCH; and a transmitter, configured to transmit the PUCCH.
In some embodiments, the transmitter may be configured to perform one of the following: transmit the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; transmit the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and transmit the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type; and the RS placement module may be configured to place the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
In some embodiments, the placement module may further be configured to perform at least one of the following: place a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and place one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
In some embodiments, the placement module may further be configured to place one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
In some embodiments, the one or more modules may further include a transmit diversity module, configured to perform Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
In some embodiments, the one or more modules may further include a sequence generation module configured to generate an orthogonal sequence for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2; the transmit diversity module may be configured to: for (2k-1)  th and (2k)  th UCI symbols in time, directly use elements of the orthogonal  sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a first set of pairs of STBC codes, and perform conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a second set of pairs of STBC codes; the transmitter may be configured to: transmit the PUCCH with the first set of pairs of STBC codes via a first antenna; and transmit the PUCCH with the second set of pairs of STBC codes via a second antenna, where k is a positive integer and smaller than or equal to m/2.
In some embodiments, when m is an odd number, before the PUCCH is transmitted, the transmit diversity module may further be configured to perform Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
In some embodiments, the transmitter may further be configured to: divide the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion; transmit the first portion of the PUCCH in a first frequency band; and transmit the second portion of the PUCCH in a second frequency band.
In some embodiments, the PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
The disclosure also provides a non-transitory computer readable storage radium, having instructions stored therein, which when executed by a processor, causes the processor to execute the method as described above.
According to the disclosure, front-loaded RS is used in RS design for PUCCH with long duration, which achieves low latency of services in the 5G TR system. Rest RS symbols may be placed with one DMRS symbol for every n UCI symbols, where n is an integer greater than or equal to 1. Frequency hopping may also be used for PUCCH with long duration, thus obtaining more frequency diversity gain. When STBC is used as transmit diversity of PUCCH with long duration, it would bring superior transmit diversity gain, does not require additional sequence resources, and improve coverage and robustness performances.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 illustrates a typical PUCCH transmission scheme in the 4G LTE system;
FIG. 2 illustrates several slot structure examples in the 5G NR system;
FIG. 3 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure;
FIG. 4A illustrates some examples of RS locations for PUCCH with long duration in one  slot according to the disclosure;
FIG. 4B illustrates an example of RS locations for PUCCH with long duration in multiple uplink only slots according to the disclosure;
FIG. 5 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure;
FIG. 6 illustrates a schematic view of building STBC codes as transmit diversity for PUCCH with long duration according to the disclosure;
FIG. 7 illustrates a flowchart of an information transmission method according to an embodiment of the disclosure; and
FIG. 8A illustrates an example of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure;
FIG. 8B illustrates another example of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure;
FIG. 8C illustrates an example of intra-slot hopping for PUCCH with long duration in an uplink-centric slot according to the disclosure;
FIG. 9 illustrates a block diagram of an information transmission apparatus according to an embodiment of the disclosure;
FIG. 10 illustrates a simplified structure diagram of a UE according to an embodiment of the disclosure.
DETAILED DESCRIPTION OF THE INVENTION
Various aspects are now described with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that such aspects may be practiced without these specific details.
Various aspects are described herein in connection with a user equipment (UE) , which can be a wireless terminal. The UE can also be called a system, device, subscriber unit, subscriber station, mobile station, mobile, mobile device, remote station, remote terminal, access terminal, user terminal, terminal, communication device, user agent, or user device. The UE may be a cellular telephone, a satellite phone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , a handheld device having wireless connection capability, a computing device, or other processing devices connected to a wireless modem. Moreover, various aspects are described herein in connection with a base station. A base station may be utilized for communicating with wireless terminal (s)  and may also be referred to as an access point, a Node B, evolved Node B (eNB) , H (e) NB, or some other terminology.
In order to provide a thorough understanding of the information transmission method and apparatus according to the embodiments of the disclosure, first of all, the slot structures used in the 5G NR system will be introduced hereinafter. FIG. 2 illustrates several slot structure examples in the 5G NR system. As an example, the slot may be classified into uplink only slot, uplink-centric slot and downlink-centric slot.
For an uplink only slot, all of the symbols in the uplink only slot are used for uplink (UL) transmission, and the PUCCH with long duration may be transmitted in the middle part of the system bandwidth (shown in FIG. 2) or the edges of the system bandwidth (not shown) , or the like.
For an uplink-centric slot, symbols for both UL transmission and downlink (DL) transmission are included in the uplink centric slot, where there are more uplink symbols, there is a guard period (GP) between DL/UL transmission to allow UE to switch from DL reception to UL transmission, and the PUCCH with long duration may be transmitted the middle part of the system bandwidth (shown in FIG. 2) or the edges of the system bandwidth (not shown) , or the like.
For a downlink-centric slot, symbols for both UL transmission and downlink (DL) transmission are included in the downlink-centric slot, where there are more downlink symbols, there is a guard period (GP) between DL/UL transmission to allow UE to switch from DL reception to UL transmission. As the number of uplink symbols in the downlink-centric slot relatively small, the downlink-centric slot may not be suitable for transmitting the PUCCH with long duration.
As DFT-S-OFDM will be used for PUCCH with long duration, and reference signal (RS) and uplink control information (UCI) would be multiplexed in the time division multiplex (TDM) manner, the demodulation reference signal (DMRS, the same meaning as RS here, and may also be referred to as pilot signal) for PUCCH could occupy their own symbols. In order to achieve low latency, which is a key requirement for some services in the 5G TR system, the inventor has found that RS design is an important design aspect for PUCCH with long duration. In other words, locations of DMRS needs to be re-designed from that in the LTE system.
To cope with this, the front-loaded DMRS principle is used for PUCCH with long duration in the present invention.
According to some embodiments of the disclosure, an information transmission method is provided. The method may be applied in a UE. As shown in FIG. 3, the method may include the following steps.
In step 301, an RS symbol is placed at beginning of a PUCCH, UCI symbols are placed after the RS symbol in the PUCCH.
In step 302, the PUCCH is transmitted. Specifically, the PUCCH is transmitted to a base station which in communication with the UE.
In one or more embodiments, step 301 may further include placement/locations of the rest RS symbols. In an embodiment, an RS symbol is placed at the end of the PUCCH, which improves the accuracy of demodulation of the UCI at the network side. In an embodiment, one or more RS symbols may be placed evenly in between the UCI symbols. Specifically, rest DMRS symbols are placed with one DMRS symbol for every n UCI symbols (where n is an integer greater than or equal to 1) , which will be later described in detail.
In practice, the locations for the RS symbols and for the DCI symbols in the PUCCH may be pre-determined. That is, the actions for placement of RS symbols and DCI symbols in step 301 described above in the various embodiments may be combined as desired, and executed in any order or concurrently.
FIG. 4A illustrates some examples of RS locations for PUCCH with long duration in one slot according to the disclosure. A couple of slot structures are shown in the figure, which ranges from uplink-only slot to two uplink-centric slots with both DL/UL transmissions. The principles of RS placement used in these examples include: 1) front loaded DMRS at the beginning of the PUCCH; and 2) the rest DMRS symbols are placed with one DMRS symbol for every n UCI symbols, where n is an integer greater than or equal to 1.
Specifically, as shown in FIF. 4A, uplink only slots and uplink-centric slots are used for transmitting PUCCH with long duration. Here, each of the slots includes, seven symbols. However, it is to be noted that this is just an example, and a slot may, of course, includes more or less than seven symbols.
For the uplink only slot shown in the top of FIG. 4, all the symbols in the uplink only slot are uplink symbols and are dedicated for transmitting the PUCCH; the RS symbols are placed in the first symbol, the fourth symbol (which is in the middle of the slot) and the last symbol of the slot. It can be noticed that such a RS placement allow two contiguous UCI symbols in between two RS symbols, which facilitates the implementation of STBC transmit diversity scheme which will be later described in detail.
Of course, when another diversity scheme different from the STBC is employed, there is no need to keep two contiguous UCI symbols in between two RS symbols. For example, there may be just one UCI symbol in between two RS symbols.
For the uplink-centric slot shown in the middle of FIG. 4, there is one symbol (the first symbol) for DL transmission, five symbols for UL transmission, a guard period for switching from the DL transmission to UL transmission. The five symbols are dedicated for transmitting the PUCCH, where RS symbols are placed in the first and fourth symbols. It can be noticed that such a RS placement also allow two contiguous UCI symbols in between two RS symbols; and meanwhile, there is an orphan DCI symbol left (i.e., the last DCI symbol) in the PUCCH.
For the uplink-centric slot shown in the bottom of FIG. 4, there are two symbols (the first and second symbols) for DL transmission, four symbols for UL transmission, a guard period for switching from the DL transmission to UL transmission. The four symbols are dedicated for transmitting the PUCCH, where RS symbols are placed in the first and fourth symbols, i.e., at the beginning and end of the PUCCH respectively. It can be noticed that such a RS placement also allows two contiguous UCI symbols in between two RS symbols.
FIG. 4B illustrates an example of RS locations for PUCCH with long duration in multiple uplink only slots according to the disclosure. In this example, uplink-only slots are aggregated and assigned for PUCCH. It can be noticed that placement of DMRS provides quite even distribution of RS within the aggregated slots for PUCCH and allow two contiguous UCI symbols in between two DMRS symbols to facilitate the implementation of STBC transmit diversity scheme. Another difference from the examples in FIG. 4A lies in that, two contiguous RS symbols (located in the fourth and fifth symbols) are placed immediately after every two contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol.
It is to noted that the placement of two contiguous RS symbols as shown in FIG. 4B can be applied in the scenario of FIG. 4A, in which no slot aggregation is used.
Another design aspect for the PUCCH with long duration accounts for improved coverage and robustness performance for the PUCCH. Unlike data channel, control channel does not have re-transmission mechanism to correct/improve its first transmission. For the 5G NR system, due to the introduction of higher frequency, the larger path loss could deteriorate the cell coverage. For downlink, the use of beamforming (BF) could compensate some of such path losses and improve the cell coverage. However, BF in uplink may not be as effective as in downlink, therefore, cell coverage could be an issue. To solve this, Discrete Fourier Transform-Spread OFDM (DFT-S-OFDM) waveform is adopted in uplink for PUCCH with long duration  which leads to lower PAPR and thus smaller power back-off and larger coverage. To further improve that, transmit diversity is considered in the present invention.
For transmit diversity, a couple of schemes could be considered, which include Alamouti based transmit diversity, cyclic delay diversity (CDD) , Space orthogonal-resource transmit diversity (SORTD) . There are pros and cons for each of the schemes, as shown in Table 1.
Table 1 Comparing among different transmit diversity schemes for PUCCH
Figure PCTCN2018072583-appb-000001
As DFT-S-OFDM is adopted as PUCCH with long duration, orthogonal sequences like Zadoff-Chu set of sequences could be used as the modulation sequences for UCI and RS. Such sequences are mapped along frequency and multiple sequences could be used to modulated UCIs from the same/different UEs before being multiplexed on the same symbol. As each sequence is formed by a set of complex values which cannot be re-arranged, SFBC could not be used as the transmit diversity here.
In view of this, STBC is proposed in the present invention to be used as transmit diversity for PUCCH with long duration.
According to some embodiments of the disclosure, an information transmission method is provided. The method may be applied in a UE. As shown in FIG. 5, the method may include the following steps.
In step 501, RS symbols and UCI symbols are placed in the PUCCH.
In step 502, Space-Time Block Coding (STBC) is performed on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
In step 503, the PUCCH is transmitted. Specifically, the PUCCH is transmitted to a base station which in communication with the UE.
For step 501, the specific placement of RS symbols and UCI symbols may refer to the embodiments described in connection with FIG. 3 and the examples described in connection with FIGs. 4A and 4B, and thus will be not elaborated here.
Regarding the STBC, specifically, in an example, the UCI may be modulated using a modulation scheme such as Binary Phase Shift Keying (BPSK) or Quadrature Phase Shift Keying (QPSK) , and then an orthogonal sequence is generated for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2. After the orthogonal sequences are generated, STBC is performed, as described in the following.
FIG. 6 illustrates a schematic view of building STBC codes as transmit diversity for PUCCH with long duration according to the disclosure. Taking the (2k-1)  th and (2k)  th UCI symbols a and b for example, where k is a positive integer and smaller than or equal to m/2, the generated orthogonal sequences are a i and b i respectively, where i=0, 1, ..., n, the elements of the orthogonal sequences a i and b i are directly used to build a first set of pairs of STBC codes, for example, the first pair is (a 0, b 0) , the second pair is (a 1, b 1) , …and the n th pair is (a n, b n) . Additionally, conjugation transformation is performed on the elements of the generated orthogonal sequences a i and b i to build a second set of pairs of STBC codes, for example, the first pair is
Figure PCTCN2018072583-appb-000002
the second pair is
Figure PCTCN2018072583-appb-000003
…and the n th pair is
Figure PCTCN2018072583-appb-000004
As shown in FIG. 6, before transmitting the PUCCH, inverse Fast Fourier Transform (IFFT) is performed on the first and second set of pairs of STBC codes, together with the orthogonal sequences corresponding to the RS symbols, to transform them into the time domain. The IFFT is known to one of ordinary skill in the art, and will not be elaborated here. Then, the PUCCH with the first set of pairs of STBC codes is transmitted via a first antenna Ant 1 and the PUCCH with the second set of pairs of STBC codes is transmitted via a second antenna Ant 2.
In the case that STBC is used as transmit diversity for PUCCH with long duration, the UCI transmitted on PUCCH could be spread/repeated and transmitted on same/different symbols within the time-frequency resources assigned for PUCCH. a As the STBC codes areorthogonal, good diversity performance can be implemented and thus the coverage and robustness performance of PUCCH with long duration is improved; and additionally, no more sequence resources are need.
As pair of symbols in time are needed to build STBC codes, in some embodiments, orphan symbol (for example, when m is an odd number) may be left in the time domain. In this  case, other transmit diversity schemes such as CDD or SORTD could be used for the orphan symbol.
In order to increase frequency diversity gain, the present invention further proposes frequency hopping as a yet another design aspect of PUCCH with long duration.
According to some embodiments of the disclosure, an information transmission method is provided. The method may be applied in a UE. As shown in FIG. 7, the method may include the following steps.
In step 701, RS symbols and UCI symbols are placed in the PUCCH.
In step 702, the PUCCH is divided into at least two portions in time.
In step 703, the PUCCH is transmitted in such a way that each portion is transmitted in a respective frequency band.
In an embodiment, for step 701, the specific placement of RS symbols and UCI symbols may refer to the embodiments described in connection with FIG. 3 and the examples described in connection with FIG. 4A and FIG. 4B, and thus will be not elaborated here.
Of course, transmit diversity may be combined with frequency hopping to achieve optimum performance. For example, step 502 may be executed before step 702. Such a combination can be understood by one of ordinary skill in the art, and will not be elaborated here.
For frequency hopping, intra-slot and inter-slot hopping of PUCCH with long duration could be used. In terms of intra-slot hopping, the portion (symbols) that hops to another part of frequency may need to have RS symbol to start with. FIG. 8A and FIG. 8B illustrate two examples of intra-slot hopping for PUCCH with long duration in an uplink-only slot according to the disclosure, which use the same RS designs as shown in FIG. 4A and FIG. 4B in the above. In general, it would be good to consider such operations when designing DMRS symbols and avoid to have two sets of DMRS design, one for non-hopping and one for hopping. FIG. 8C illustrates an intra-slot hopping for PUCCH with long duration in an uplink-centric slot according to the disclosure. Since the uplink-centric slot have more uplink symbols available for PUCCH relative to the uplink-centric slots, it may be more worth applying intra-slot frequency hopping for the uplink-centric slot.
In this embodiment, frequency hopping, particularly the intra-slot hopping, is used for PUCCH with long duration, the UCI in the PUCCH could be transmitted in different frequency bands, and thus the frequency diversity gain is improved.
Based on the several information transmission method embodiments described above, an information transmission apparatus is provided according to some embodiments of the disclosure.
As shown in FIG. 9, the information transmission apparatus 900 includes a placement module 901, and a transmission module 902. In practice, the placement module 901 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a combination thereof. Therefore, the placement module 901 may be referred to as a placement circuit in some cases. The transmission module 902 may be realized by a transmitter circuit including multiple antennas.
The placement module 901 may be configured to place a first RS symbol at beginning of a PUCCH, and place UCI symbols after the first RS symbol in the PUCCH.
The transmission module 902 may be configured to transmit the PUCCH.
In an embodiment, the transmitter may be configured to perform one of the following: transmit the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH; transmit the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and transmit the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type, and the placement module may be configured to place the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
In an embodiment, the placement module 901 may further be configured to perform at least one of the following: place a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and place one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
In an embodiment, the placement module 901 may further be configured to place one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, where n is an integer greater than or equal to 1.
In an embodiment, the apparatus 900 may further include a transmit diversity module 903, configured to perform Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes. In practice, transmit diversity module 903 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a combination thereof. Therefore, the transmit diversity module 903 may be referred to as a transmit diversity circuit or a transmit diversity coder in some cases.
In an embodiment, the apparatus 900 may further include a sequence generation module 905. In practice, the sequence generation module 905 may be realized by a software module stored in a memory and executable by a processor, or may be hardware circuits, or may be a  combination thereof. Therefore, the sequence generation module 905 may be referred to as a sequence generation circuit or a sequence generator in some cases. The sequence generation module 905 may be configured to for each of modulated symbols carrying UCI in the PUCCH, where the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2. In this embodiment, the transmit diversity module 904 is configured to: for (2k-1)  th and (2k)  th UCI symbols in time, where k is a positive integer and smaller than or equal to m/2, directly use elements of the orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a first set of pairs of STBC codes, and perform conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a second set of pairs of STBC codes. in the transmission module 903 may be configured to: transmit the PUCCH with the first set of pairs of STBC codes via a first antenna; and transmit the PUCCH with the second set of pairs of STBC codes via a second antenna.
In an embodiment, when m is an odd number, before the PUCCH is transmitted, the transmit diversity module 904 may further configured to perform Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
In an embodiment, the transmission module 903 may further be configured to divide the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion; transmit the first portion of the PUCCH in a first frequency band; and transmit the second portion of the PUCCH in a second frequency band. The PUCCH may be divided such that the second portion of the PUCCH begins with an RS symbol.
FIG. 10 is a simplified structural diagram of a UE according to an embodiment of the disclosure. The UE 1000 may include a processor 1001, a memory 1002, a transmitter 1003 having multiple antennas and other parts (e.g., a touch screen, not shown) . The memory 1002 stores program instructions, which when executed by the processor 1001, cause the processor 1001 to perform at least one of the method described in connection with FIGs. 1, 5 and 7. The apparatus as shown in Fig. 9 may be implemented in the UE 1000.
The benefits of the apparatus described here correspond to those described for the information transmission methods, and thus are omitted here.
Those skilled in the art will appreciate that all or a part of the steps in the above embodiments can be implemented by computer programs. The computer programs can be stored in a computer readable storage medium and executed on a corresponding hardware platform (e.g., system, equipment, apparatus, device and the like) to perform one or a combination of the steps in the method embodiments.
Optionally, all or a part of the steps in the above embodiments can be implemented using Integrated Circuits (ICs) . These steps can be implemented by one or more IC modules. As such, the present invention is not limited to any specific combination of hardware circuitry and software.
Respective devices or functional modules or functional units in the above embodiments can be implemented using general computing devices, which can be located in a single computing apparatus or distributed on a network including multiple computing devices.
When respective devices or functional modules or functional units in the above embodiments are implemented in the form of software functional modules and then sold or used as an independent product, they can be stored in a computer readable storage medium. The afore-mentioned computer readable storage medium can be magnetic disks and /or optical disks, such as Read Only Memories (ROMs) , and the like.
The above description are merely preferable embodiments of the disclosure and are not intended to limit the scope of protection of the disclosure, and it will be apparent to those skilled in the art that various substitutions, modifications and changes may be made without departing from the scope and spirit of the invention. Therefore, the scope of protection of the disclosure should be interpreted solely in light of the claims.
INDUSTRIAL APPLICABILITY
According to the disclosure, front-loaded RS is used in RS design for PUCCH with long duration, which achieves low latency of services in the 5G TR system. When STBC is used as transmit diversity of PUCCH with long duration, it would bring superior transmit diversity gain, does not require additional sequence resources, and improve coverage and robustness performances. Rest RS symbols may be placed with one DMRS symbol for every n UCI symbols. Frequency hopping may also be used for PUCCH with long duration, thus obtaining more frequency diversity gain.

Claims (19)

  1. An information transmission method, comprising:
    placing a first Reference Signal (RS) symbol at beginning of a Physical Uplink Control Channel (PUCCH) ;
    placing Uplink Control Information (UCI) symbols after the first RS symbol in the PUCCH; and
    transmitting the PUCCH.
  2. The method according to claim 1, wherein the transmitting the PUCCH comprises one of the following:
    transmitting the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH;
    transmitting the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and
    transmitting the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type, and
    wherein the placing a first RS symbol at beginning of a PUCCH comprises:
    placing the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
  3. The method according to claim 2, further comprising at least one of the following:
    placing a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and
    placing one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
  4. The method according to claims 2, further comprising:
    placing one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, wherein n is an integer greater than or equal to 1.
  5. The method according to any of claims 1 to 4, further comprising: before transmitting the PUCCH, performing Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  6. The method according to claim 5, further comprising:
    generating an orthogonal sequence for each of modulated symbols carrying UCI in the PUCCH, wherein the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2,
    wherein the performing STBC on at least a portion of UCI symbols comprises: for (2k-1)  th and (2k)  th UCI symbols in time,
    directly using the elements of the orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a first set of pairs of STBC codes, and
    performing conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a second set of pairs of STBC codes;
    wherein the transmitting the PUCCH comprises:
    transmitting the PUCCH with the first set of pairs of STBC codes via a first antenna; and
    transmitting the PUCCH with the second set of pairs of STBC codes via a second antenna, where k is a positive integer and smaller than or equal to m/2.
  7. The method according to claim 6, wherein when m is an odd number, before transmitting the PUCCH, the method further comprises:
    performing Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
  8. The method according to any of claims 1 to 7, wherein the transmitting the PUCCH further comprises:
    dividing the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion;
    transmitting the first portion of the PUCCH in a first frequency band; and
    transmitting the second portion of the PUCCH in a second frequency band.
  9. The method according to claim 8, wherein the PUCCH is divided such that the second portion of the PUCCH begins with an RS symbol.
  10. An information transmission apparatus, comprising:
    a processor; and
    one or more modules stored on a memory and executable by the processor, the one or more modules comprises:
    a placement module, configured to place a first RS symbol at beginning of a Physical Uplink Control Channel (PUCCH) , and place UCI symbols after the first RS symbol in the PUCCH; and
    a transmitter, configured to transmit the PUCCH.
  11. The apparatus according to claim 10, wherein the transmitter is configured to perform one of the following:
    transmit the PUCCH in one or more slots of a first type, wherein all symbols in each of the slots of the first type are uplink, which are dedicated for transmitting the PUCCH;
    transmit the PUCCH in one or more slots of a second type, wherein more than one half of symbols in each of the slots of the second type are uplink, which are dedicated for transmitting the PUCCH; and
    transmit the PUCCH in multiple slots comprising one or more slots of the first type and one or more slots of the second type, and
    wherein the RS placement module is configured to place the first RS symbol at the beginning of the PUCCH, in each of the slots of the first or second type.
  12. The apparatus according to claim 11, wherein the placement module is further configured to perform at least one of the following:
    place a second RS symbol at end of the PUCCH, in each of the slots of the first or second type; and
    place one or more third RS symbols evenly in between the UCI symbols, in the PUCCH in each of the slots of the first or second type.
  13. The apparatus according to claim 11, wherein the placement module is further configured to place one or two RS symbols immediately after every n contiguous UCI symbols, in each of the slots of the first or second type, until a last symbol in the slot is filled by an RS or UCI symbol, wherein n is an integer greater than or equal to 1.
  14. The apparatus according to any of claims 10 to 13, wherein the one or more modules further comprise:
    a transmit diversity module, configured to perform Space-Time Block Coding (STBC) on at least a portion of the UCI symbols in the PUCCH to build STBC codes.
  15. The apparatus according to claim 14, wherein the one or more modules further comprise:
    a sequence generation module configured to generate an orthogonal sequence for each of modulated symbols carrying UCI in the PUCCH, wherein the UCI symbols comprise m UCI symbols in time, where m is an integer, and greater than or equal to 2;
    wherein the transmit diversity module is configured to: for (2k-1)  th and (2k)  th UCI symbols in time,
    directly use elements of the orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a first set of pairs of STBC codes, and
    perform conjugation transformation on the elements of the generated orthogonal sequences corresponding to the (2k-1)  th and (2k)  th UCI symbols to build a second set of pairs of STBC codes;
    wherein the transmitter is configured to:
    transmit the PUCCH with the first set of pairs of STBC codes via a first antenna; and
    transmit the PUCCH with the second set of pairs of STBC codes via a second antenna,
    where k is a positive integer and smaller than or equal to m/2.
  16. The apparatus according to claim 15, wherein when m is an odd number, before the PUCCH is transmitted, the transmit diversity module is further configured to:
    perform Cyclic Delay Diversity (CDD) or Space Orthogonal-Resource Transmit Diversity (SORTD) on a last DCI symbol in time among the m DCI symbols to build CDD or SORTD codes for the last DCI symbol.
  17. The apparatus according to any of claims 10 to 16, wherein the transmitter is further configured to:
    divide the PUCCH transmitted in a single one of the first or second slots into a first portion and a second portion;
    transmit the first portion of the PUCCH in a first frequency band; and
    transmit the second portion of the PUCCH in a second frequency band.
  18. The apparatus according to claim 17, wherein the PUCCH is divided such that the second portion of the PUCCH begins with an RS symbol.
  19. A non-transitory computer readable storage radium, having instructions stored therein, which when executed by a processor, causes the processor to execute the method according to any of claims 1 to 9.
PCT/CN2018/072583 2017-02-03 2018-01-15 Information transmission method and apparatus and storage medium WO2018141201A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113330711A (en) * 2019-01-22 2021-08-31 苹果公司 Physical downlink control channel design for DFT-S-OFDM waveforms

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018174633A2 (en) * 2017-03-23 2018-09-27 엘지전자 주식회사 Method for transmitting or receiving signal between terminal and base station in wireless communication system, and device supporting same
CN110603775B (en) * 2017-05-04 2022-10-25 苹果公司 New Radio (NR) physical uplink structure and scheme
CN107332573B (en) * 2017-07-25 2021-04-13 Oppo广东移动通信有限公司 Radio frequency circuit, antenna device and electronic equipment
WO2019187157A1 (en) * 2018-03-30 2019-10-03 株式会社Nttドコモ User equipment and base station apparatus
CN111800881B (en) * 2019-07-31 2023-05-23 维沃移动通信有限公司 Control channel transmission method, terminal equipment and network equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130022019A1 (en) * 2010-04-05 2013-01-24 Lg Electronics Inc. Method and apparatus for transmitting control information in wireless communication system
CN103026650A (en) * 2010-07-26 2013-04-03 Lg电子株式会社 Method and device for transmitting extended uplink control information in wireless communication system
US20160192385A1 (en) * 2013-01-16 2016-06-30 Interdigital Patent Holdings, Inc. Improved uplink spectrum efficiency
US20170111894A1 (en) * 2015-10-15 2017-04-20 Qualcomm Incorporated Uplink control channel for low latency communications

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227233B (en) * 2008-02-01 2013-01-16 中兴通讯股份有限公司 Method and apparatus for sending physics uplink control signal in TDD system
WO2010123304A2 (en) * 2009-04-24 2010-10-28 Samsung Electronics Co., Ltd. Multiplexing large payloads of control information from user equipments
US9432164B2 (en) * 2009-10-15 2016-08-30 Qualcomm Incorporated Method and apparatus for reference signal sequence mapping in wireless communication
KR101814394B1 (en) * 2010-01-17 2018-01-03 엘지전자 주식회사 Apparatus and method of transmitting control information in wireless communication system
CN102143586B (en) * 2010-02-01 2015-06-03 中兴通讯股份有限公司 Processing method and system for backhaul link uplink control channel
WO2011137408A2 (en) * 2010-04-30 2011-11-03 Interdigital Patent Holdings, Inc. Determination of carriers and multiplexing for uplink control information transmission
WO2012111975A2 (en) * 2011-02-15 2012-08-23 엘지전자 주식회사 Method and apparatus for transmitting uplink control information in a wireless communication system
CN103178926B (en) * 2011-12-21 2016-01-06 华为技术有限公司 The method of control information transmission, subscriber equipment and base station
US9967069B2 (en) * 2012-03-24 2018-05-08 Lg Electronics Inc. Method and apparatus for transmitting and receiving reference signal in wireless communication system
CN105144618B (en) * 2013-05-09 2019-01-01 富士通株式会社 Transmission method, user equipment and the base station of ascending control information
WO2014201614A1 (en) * 2013-06-17 2014-12-24 华为技术有限公司 Uplink control information transmission method, user equipment and base station
US10637701B2 (en) * 2015-06-04 2020-04-28 Electronics And Telecommunications Research Institute Method and apparatus for transmitting physical uplink control channel
KR102058718B1 (en) * 2016-02-02 2020-01-22 엘지전자 주식회사 Method for transmitting uplink control channel and user equipment for performing same
US10880915B2 (en) * 2016-08-11 2020-12-29 Lg Electronics Inc. Method for terminal for transmitting uplink control information in wireless communication system, and terminal utilizing method
KR102216251B1 (en) * 2016-11-04 2021-02-17 엘지전자 주식회사 Method for transmitting and receiving physical uplink control channel between terminal and base station in wireless communication system and apparatus for supporting same
US11012183B2 (en) * 2016-12-14 2021-05-18 Ntt Docomo, Inc. User terminal and radio communication method
US10455560B2 (en) * 2017-01-05 2019-10-22 Sharp Kabushiki Kaisha Short physical uplink control channel (PUCCH) design for 5th generation (5G) new radio (NR)
AU2017390583A1 (en) * 2017-01-05 2019-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Device and node in a wireless communication system for transmitting uplink control information
KR102603814B1 (en) * 2017-01-06 2023-11-17 한국전자통신연구원 Method for transmitting uplink control information and apparatus for the same
US10237105B2 (en) * 2017-01-08 2019-03-19 Qualcomm Incorporated Multiplexing uplink transmissions with transmit diversity with single carrier waveform
US10609689B2 (en) * 2017-02-02 2020-03-31 Sharp Kabushiki Kaisha Long physical uplink control channel (PUCCH) design for 5th generation (5G) new radio (NR)
KR20190141006A (en) * 2017-05-03 2019-12-20 엘지전자 주식회사 Signal transmission and reception method between a terminal and a base station in a wireless communication system and an apparatus supporting the same
WO2019098693A1 (en) * 2017-11-15 2019-05-23 엘지전자 주식회사 Method for terminal transmitting aperiodic channel state information in wireless communication system, and terminal that uses the method
EP3661106B1 (en) * 2018-01-12 2023-06-07 LG Electronics Inc. Method for transmitting or receiving uplink control information through pucch in wireless communication system and apparatus therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130022019A1 (en) * 2010-04-05 2013-01-24 Lg Electronics Inc. Method and apparatus for transmitting control information in wireless communication system
CN103026650A (en) * 2010-07-26 2013-04-03 Lg电子株式会社 Method and device for transmitting extended uplink control information in wireless communication system
US20160192385A1 (en) * 2013-01-16 2016-06-30 Interdigital Patent Holdings, Inc. Improved uplink spectrum efficiency
US20170111894A1 (en) * 2015-10-15 2017-04-20 Qualcomm Incorporated Uplink control channel for low latency communications

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
GUANGDONG OPPO MOBILE TELECOM: "Design of NR PUCCH with long duration", 3GPP TSG RAN WGI MEETING #88 R1-55533379, 17 February 2017 (2017-02-17), XP051209119 *
INTEL CORPORATION: "3GPP DRAFT; RI-1612581 INTEL - URLLC REFSIG, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", 14 November 2016, MOBILE COMPETENCE CENTRE, article "Aspects of reference signal design for URLLC services"
NTT DOCOMO ET AL.: "3GPP DRAFT; RI-1700617, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", 16 January 2017, MOBILE COMPETENCE CENTRE, article "Summary of [87-36]: Mini-slot designs for NR"
See also references of EP3566521A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113330711A (en) * 2019-01-22 2021-08-31 苹果公司 Physical downlink control channel design for DFT-S-OFDM waveforms

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