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WO2025129534A1 - Dispositifs et procédés d'étalement dans transmission en liaison montante - Google Patents

Dispositifs et procédés d'étalement dans transmission en liaison montante Download PDF

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Publication number
WO2025129534A1
WO2025129534A1 PCT/CN2023/140447 CN2023140447W WO2025129534A1 WO 2025129534 A1 WO2025129534 A1 WO 2025129534A1 CN 2023140447 W CN2023140447 W CN 2023140447W WO 2025129534 A1 WO2025129534 A1 WO 2025129534A1
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Prior art keywords
dimension
spread
indices
spreading
spread symbol
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English (en)
Inventor
Yue Zhou
Gang Wang
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NEC Corp
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NEC Corp
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Priority to PCT/CN2023/140447 priority Critical patent/WO2025129534A1/fr
Publication of WO2025129534A1 publication Critical patent/WO2025129534A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code

Definitions

  • Example embodiments of the present disclosure generally relate to the field of communication techniques and in particular, to devices and methods for spreading in uplink transmission.
  • a non-terrestrial network refers to a network or segment of networks using radio frequency (RF) resources on board a satellite or unmanned aircraft system (UAS) platform.
  • RF radio frequency
  • UAS unmanned aircraft system
  • the NTN could provide ubiquitous and resilient wireless service beyond the terrestrial network coverage.
  • 3GPP 3rd Generation Partnership Project
  • 5G fifth generation
  • 6G sixth generation
  • a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, a configuration comprising a spreading level and spreading code index for a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) without dedicated resources; spread, based on the spreading level and the spreading code index, a plurality of modulation symbols in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level; and transmit, to the network device, data of the PUSCH or the PUCCH without dedicated resources based on the spread plurality of modulation symbols.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, a configuration comprising a spreading level and spreading code index for a PUSCH or PUCCH without dedicated resources; receive, from the terminal device, data of the PUSCH or the PUCCH without dedicated resources; and process the data to obtain a plurality of modulation symbols, wherein the plurality of modulation symbols is spread in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a span of a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • a communication method performed by a terminal device.
  • the method comprises: receiving, from a network device, a configuration comprising a spreading level and spreading code index for a PUSCH or a PUCCH without dedicated resources; spreading, based on the spreading level and the spreading code index, a plurality of modulation symbols in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level; and transmitting, to the network device, data of the PUSCH or the PUCCH without dedicated resources based on the spread plurality of modulation symbols.
  • a communication method performed by a network device.
  • the method comprises: transmitting, to a terminal device, a configuration comprising a spreading level and spreading code index for a PUSCH or PUCCH without dedicated resources; receiving, from the terminal device, data of the PUSCH or the PUCCH without dedicated resources; and processing the data to obtain a plurality of modulation symbols, wherein the plurality of modulation symbols is spread in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a span of a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the third, or fourth aspect.
  • FIG. 2A and FIG. 2B illustrate schematic diagrams of non-terrestrial network scenarios with different payload types in accordance with some embodiments of the present disclosure
  • FIG. 4 illustrates a signaling flow of an uplink transmission in accordance with some embodiments of the present disclosure
  • FIG. 5 illustrates an example signal processing procedure for uplink transmission in accordance with some embodiments of the present disclosure
  • FIG. 6A to FIG. 6E illustrate example sequential patterns in a first dimension in accordance with some embodiments of the present disclosure
  • FIG. 7A to FIG. 7D illustrate example alternate patterns in the first dimension in accordance with some embodiments of the present disclosure
  • FIG. 8A to FIG. 8D illustrate example sequential patterns in a second dimension in accordance with some embodiments of the present disclosure
  • FIG. 9A to FIG. 9D illustrate example alternate patterns in the second dimension in accordance with some embodiments of the present disclosure
  • FIG. 10A to FIG. 10E illustrate example alternate patterns in the first and second dimensions in accordance with some embodiments of the present disclosure
  • FIG. 11A to FIG. 11B illustrate example sequential patterns in the first and second dimensions in accordance with some embodiments of the present disclosure
  • FIG. 14 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.
  • terminal device refers to any device having wireless or wired communication capabilities.
  • the terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, tablets, wearable devices, internet of things (IoT) devices, Ultra-reliable and Low Latency Communications (URLLC) devices, Internet of Everything (IoE) devices, machine type communication (MTC) devices, devices on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure/network, devices for Integrated Access and Backhaul (IAB) , Space borne vehicles or Air borne vehicles in Non-terrestrial networks (NTN) including Satellites and High Altitude Platforms (HAPs) encompassing Unmanned Aircraft Systems (UAS) , eXtended Reality (XR) devices including different types of realities such as Augmented Reality (AR) , Mixed Reality (MR) and Virtual Reality (VR) , the unmanned aerial vehicle (UAV)
  • UE user equipment
  • the ‘terminal device’ can further has ‘multicast/broadcast’ feature, to support public safety and mission critical, V2X applications, transparent IPv4/IPv6 multicast delivery, IPTV, smart TV, radio services, software delivery over wireless, group communications and IoT applications. It may also incorporate one or multiple Subscriber Identity Module (SIM) as known as Multi-SIM.
  • SIM Subscriber Identity Module
  • the term “terminal device” can be used interchangeably with a UE, a mobile station, a subscriber station, a mobile terminal, a user terminal or a wireless device.
  • network device refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate.
  • a network device include, but not limited to, a Node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a next generation NodeB (gNB) , a transmission reception point (TRP) , a remote radio unit (RRU) , a radio head (RH) , a remote radio head (RRH) , an IAB node, a low power node such as a femto node, a pico node, a reconfigurable intelligent surface (RIS) , and the like.
  • NodeB Node B
  • eNodeB or eNB evolved NodeB
  • gNB next generation NodeB
  • TRP transmission reception point
  • RRU remote radio unit
  • RH radio head
  • RRH remote radio head
  • IAB node a low power node such as a fe
  • the terminal device or the network device may have Artificial intelligence (AI) or Machine learning capability. It generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
  • AI Artificial intelligence
  • Machine learning capability it generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
  • the terminal or the network device may work on several frequency ranges, e.g., FR1 (e.g., 450 MHz to 6000 MHz) , FR2 (e.g., 24.25GHz to 52.6GHz) , frequency band larger than 100 GHz as well as Tera Hertz (THz) . It can further work on licensed/unlicensed/shared spectrum.
  • FR1 e.g., 450 MHz to 6000 MHz
  • FR2 e.g., 24.25GHz to 52.6GHz
  • THz Tera Hertz
  • the terminal device may have more than one connection with the network devices under Multi-Radio Dual Connectivity (MR-DC) application scenario.
  • MR-DC Multi-Radio Dual Connectivity
  • the terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
  • the embodiments of the present disclosure may be performed in test equipment, e.g., signal generator, signal analyzer, spectrum analyzer, network analyzer, test terminal device, test network device, channel emulator.
  • the terminal device may be connected with a first network device and a second network device.
  • One of the first network device and the second network device may be a master node and the other one may be a secondary node.
  • the first network device and the second network device may use different radio access technologies (RATs) .
  • the first network device may be a first RAT device and the second network device may be a second RAT device.
  • the first RAT device is eNB and the second RAT device is gNB.
  • Information related with different RATs may be transmitted to the terminal device from at least one of the first network device or the second network device.
  • first information may be transmitted to the terminal device from the first network device and second information may be transmitted to the terminal device from the second network device directly or via the first network device.
  • information related with configuration for the terminal device configured by the second network device may be transmitted from the second network device via the first network device.
  • Information related with reconfiguration for the terminal device configured by the second network device may be transmitted to the terminal device from the second network device directly or via the first network device.
  • the singular forms ‘a’ , ‘an’ and ‘the’ are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • the term ‘includes’ and its variants are to be read as open terms that mean ‘includes, but is not limited to. ’
  • the term ‘based on’ is to be read as ‘at least in part based on. ’
  • the term ‘one embodiment’ and ‘an embodiment’ are to be read as ‘at least one embodiment. ’
  • the term ‘another embodiment’ is to be read as ‘at least one other embodiment. ’
  • the terms ‘first, ’ ‘second, ’ and the like may refer to different or same objects. Other definitions, explicit and implicit, may be included below.
  • values, procedures, or apparatus are referred to as ‘best, ’ ‘lowest, ’ ‘highest, ’ ‘minimum, ’ ‘maximum, ’ or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
  • the term “resource, ” “transmission resource, ” “uplink resource, ” or “downlink resource” may refer to any resource for performing a communication, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like.
  • a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
  • terminal device 110 operating as a UE
  • network device 120 operating as a gNB
  • operations described in connection with a terminal device may be implemented at a network device or other device
  • operations described in connection with a network device may be implemented at a terminal device or other devices.
  • Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, 5.5G, 5G-Advanced networks, or the sixth generation (6G) networks.
  • the communication environment 100 may be implemented in the NTN.
  • the NTN may have different payload types.
  • FIG. 2A and FIG. 2B illustrate schematic diagrams of NTN scenarios with different payload types.
  • the NTN of FIG. 2A is based on a transparent payload
  • the NTN of FIG. 2B is based on a regenerative payload.
  • a satellite or UAS platform may implement either a transparent or a regenerative (with on board processing) payload.
  • the satellite or UAS platform may generate beams (for example, typically generate several beams) over a given service area bounded by its field of view 260.
  • the footprints 250 of the beams are typically of an elliptic shape.
  • the field of view of a satellite or UAS platform depends on the on-board antenna diagram and the minimum elevation angle. Table 1 shows some parameters for some example platforms.
  • an UE 210 may communicate with the satellite 220 or UAS platform through a service link, and the satellite 220 or UAS platform may communicate with a gateway 230 having connection with a data network 240 through a feeder link.
  • the satellite 220 or UAS platform may perform RF filtering, frequency conversion and amplification, therefore a waveform signal repeated by the payload may be unchanged.
  • the UE 210 may have a connection with the data network 240.
  • the round-trip time (RTT) in this case reflects the time for data to transmit from the UE 210 through the satellite 220 or UAS platform to a gNB (which is on the ground) .
  • the UE 210 may communicate with a satellite 220-1 or UAS platform through a service link.
  • the satellite 220-1 or UAS platform may communicate with a satellite 220-2 or UAS platform through Inter-Switch Link (ISL) , and the satellite 220-2 or UAS platform may communicate with the gateway 230 having a connection with the data network 240 through a feeder link. If ISL is not available, the satellite 220 or UAS platform may communicate with the gateway 230 having a connection with a data network 240 through a feeder link.
  • ISL Inter-Switch Link
  • the satellite 220-1 and 220-2 may perform RF filtering, frequency conversion and amplification, demodulation/decoding, switch and/or routing, and coding/modulation which is effectively equivalent to having all or part of base station (for example, gNB) functions on the satellite or UAS platform.
  • the UE 210 may have a connection with the data network 240.
  • the RTT in this case reflects the time for data to transmit from the UE 210 to the gNB (which is on the satellite or UAS platform) .
  • orthogonal codes refer to sets of binary sequences that have desirable properties. These codes have the property that their inner product is zero, except when two identical sequences are multiplied together, in which case the inner product is equal to the length of the sequence.
  • FIG. 3 illustrates different schemes for applying orthogonal codes.
  • a scheme in which the OCC is applied in time domain (TD) is referred to as TD-CDM.
  • a scheme in which the OCC is applied in frequency domain (FD) is referred to as FD-CDM, for example, the pattern shown as “FD-CDM2” in FIG. 3.
  • a scheme in which the OCC is applied in both TD and FD is referred to as FD-TD-CDM, for example the pattern shown as “FD2-TD2-CDM4” in FIG. 3 and the pattern shown as “FD2-TD4-CDM8” in FIG. 3.
  • OCC may be used for a Physical Uplink Control Channel (PUCCH) and demodulation reference signal (DM-RS) multiplexing to provide additional DM-RS ports. Since the OCC code length is across resource element (RE) in OFDM symbols of both slots, it means that such high-rank transmission is more sensitive to time variations in the channel as the channel should ideally be constant across all REs occupied by the OCC.
  • PUCCH Physical Uplink Control Channel
  • DM-RS demodulation reference signal
  • DFT-s-OFDM For uplink, for example 5G Uplink, there are both Cyclic Prefix (CP) -OFDM and Discrete Fourier Transform-spreading (DFT-s) -OFDM waveform. Compared to CP-OFDM, there is a transform precoding operation before sub-carrier mapping in DFT-s-OFDM. DFT-s-OFDM has a better Peak-to-Average Power Ratio (PAPR) , which suits power-constrained UL transmission. DFT-s-OFDM is more vulnerable to frequency offset and phase noise, which requires more accurate channel estimation.
  • PAPR Peak-to-Average Power Ratio
  • more than one UEs may perform UL transmissions to the network by using the same physical resources or overlapped physical resources. In these cases, the network would have to distinguish the UL transmissions from different UEs. In some cases, one UE may perform different UL transmissions to the network by using the same physical resources or overlapped physical resources. In these cases, the network would have to distinguish the different UL transmissions from the same UE. In view of the above, there is a need to enhance UL capacity to support the UL transmissions from different UEs, in particular for NTN where a relatively large number of users (for example, terminal devices) are served in a cell.
  • a network device may configure a terminal device with a spreading level and a spreading code index for an UL channel.
  • the UL channel may be a PUCCH without dedicated resources or a PUSCH.
  • the terminal device may spread a plurality of modulation symbols in at least one of a first dimension or a second dimension.
  • the first dimension has a range associated with a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • the terminal device may perform transmission of the UL channel based on the spread plurality of modulation symbols.
  • the modulation symbols for a UL transmission are spread with spreading codes.
  • the network device can indicate different terminal devices with orthogonal codes such that the spread symbols for these terminal devices are orthogonal with each other.
  • the network device can indicate a terminal device with orthogonal codes such that the spread symbols for different UL transmissions from the same terminal device are orthogonal with each other. Therefore, the network device can distinguish UL transmissions from these different terminal devices by using the same physical resources or overlapped physical resources. In this way, the UL capacity can be enhanced.
  • FIG. 4 illustrates a signaling flow 400 of a UL transmission in accordance with some embodiments of the present disclosure.
  • the signaling flow 400 will be discussed with reference to FIG. 1, for example, by using the terminal device 110 and the network device 120. It is to be understood that although one terminal device 110 is illustrated in FIG. 4, the signal flow 400 may involves a plurality of terminal devices.
  • the network device 120 may transmit (410) a spreading configuration for an uplink channel to the terminal device 110.
  • the spreading configuration may include a spreading level and a spreading code index for the uplink channel.
  • the uplink channel may be a PUSCH.
  • the uplink channel may be a PUCCH without dedicated resources. In the following, some example embodiments are described with respect to the PUSCH. However, it is to be noted that these example embodiments are applicable to the PUCCH without dedicated resources.
  • the spreading level may represent the level for spreading modulation symbols or the level for multiplexing spreading codes.
  • the spreading level may be an OCC length given by the higher layer parameter occ-Length, or indicated by downlink control information (DCI) or medium access control (MAC) control element (CE) .
  • the spreading level may be 2, 4, 6, 8, 10, 12 or the like.
  • the spreading code index may indicate a set of orthogonal sequences to use.
  • the spreading code index may be used to determine a code book to use.
  • the spreading code index may be an OCC index given by the higher layer parameter occ-Index, or indicated by DCI or MAC CE.
  • the network device 120 may indicate the spreading code indices for these terminal devices 110 such that the spreading codes to be applied by these terminal devices 110 are orthogonal.
  • the network device 120 may indicate the spreading code indices for the terminal device 110 such that the spreading codes to be applied to different PUSCH transmissions are orthogonal.
  • the spreading configuration may include other information regarding spreading for the uplink channel.
  • the spreading configuration may include an indication of a starting symbol for the uplink channel.
  • the spreading configuration may further include an indication of a spreading pattern to use.
  • the spreading pattern to use may be predetermined.
  • the spreading pattern or spreading mode may indicate how to apply a plurality of spreading codes, for example orthogonal sequences.
  • the spreading pattern may include a sequential pattern and an alternate pattern, as will be described in detail below.
  • the terminal device 110 may receive (420) the spreading configuration for the uplink channel from the network device 120. During preparation of data for the uplink channel, the terminal device 110 may obtain a plurality of modulation symbols. Based on the spreading configuration, the terminal device 110 may spread (430) the plurality of modulation symbols in at least one of a first dimension or a second dimension different from the first dimension. The terminal device 110 may spread the modulation symbols according to the spreading pattern.
  • the first dimension may have a range associated with a frequency band allocated for the uplink channel, for example, the PUSCH or the PUCCH without dedicated resources.
  • the range of the first dimension may be associated with the number (which is also referred to as fourth number) of subcarriers allocated for the uplink channel, such as the PUSCH or the PUCCH without dedicated resources.
  • the largest index of the first dimension may be based on the number of allocated subcarriers.
  • the second dimension may have a range at least associated with the spreading level, for example the higher layer parameter occ-Length, or indicated by DCI or MAC CE.
  • the range of the second dimension may be associated with the spreading level, the number of allocated subcarrier and the number (which is referred to as a fifth number) of the plurality of modulation symbols.
  • the first dimension may be associated with frequency domain and the second dimension may be associated with time domain.
  • a plurality of spreading codes to use may be determined based on the spreading level and the spreading code index. The number of the plurality of spreading codes may be equal to the spreading level.
  • a code book to use may be determined based on the spreading code index. Then, the plurality of spreading codes to use may be selected from the code book to use. Then, the plurality of spreading codes may be applied to the plurality of modulation symbols according to the spreading pattern, which may be indicated by the network device 120 or predefined.
  • the spreading may be performed according to the following equation:
  • y represents the spread modulation symbols
  • k represents the index in the first dimension, which is also referred to as first index
  • l represents the index in the second dimension, which is also referred to as second index
  • w n () represents an applied spreading code, for example, an orthogonal sequence in the nth code book (the code book with the spreading code index n)
  • d () represents a modulation symbol.
  • f (l, k) represents a function with at least one of the first index and second index (e.g.
  • the network device 120 may receive (450) the data of the uplink channel from the terminal device 110. Then, the network device 120 may process (460) the data to obtain the plurality of modulation symbols. In other words, the network device 120 may perform de-spreading to obtain the plurality of modulation symbols.
  • De-spreading may be a reverse operation of the spreading performed by the terminal device 110.
  • the network device 120 may process the received data to obtain the spread plurality of spreading codes.
  • the plurality of spreading codes to use may be determined based on the spreading level and the spreading code index. The number of the plurality of spreading codes may be equal to the spreading level.
  • the code book to use may be determined based on the spreading code index. Then, the plurality of spreading codes to use may be selected from the code book to use. Then, the plurality of spreading codes may be applied to the spread plurality of modulation symbols according to the spreading pattern, which may be indicated by the network device 120 or predefined. As such, the plurality of modulation symbols may be obtained by the network device 120.
  • the spreading codes applied by these terminal devices 110 are orthogonal. As such, the network device 110 can distinguish the data from different terminal devices 110.
  • the spreading codes applied to different PUSCH transmissions are orthogonal. As such, the network device 110 can distinguish the data of different PUSCH transmissions from the same terminal device.
  • a spread symbol set may be generated by applying the same spread code to the plurality of modulation symbols.
  • the spread symbol set may include a plurality of spread symbols one-to-one corresponding to the plurality of modulation symbols.
  • Different spread symbol sets may correspond to different spread codes, which may belong to the same code book as indicated by the spread code index.
  • each cell represents a spread symbol.
  • the numeral value in each cell represents the corresponding modulation symbol, which means that the spread symbols with the same numeral value are spread from the same modulation symbol.
  • the letter in each cell represents the spread symbol set to which the corresponding spread symbol belongs. The spread symbols with the same letter belong to the same spread symbol set and are applied with the same spreading code.
  • the spreading may be performed in the first dimension.
  • identical modulation symbols may be spread according to first indices in the first dimension by applying with respective spreading codes. If the first dimension is associated with frequency domain, the identical modulation symbols may be considered as being spread into different subcarriers.
  • the terminal device 110 may determine a first number of spreading codes based on the spreading level and the spreading code index, the first number being equal to the spreading level, for example 2, 4, 6, 8, 10, or 12.
  • the terminal device 110 may generate the first number of spread symbol sets by applying the first number of spreading codes to the plurality of modulation symbols in the first dimension.
  • each spread symbol set may correspond to the plurality of modulation symbols and has a set of first indices in the first dimension.
  • the respective sets of first indices for the first number of spread symbol sets are different. In other words, the resulting spread symbol sets are distinguished from each other in term of their first indices in the first dimension.
  • a sequential pattern in the first dimension may be employed.
  • the first number of spreading codes may be applied sequentially according to first indices of the first dimension.
  • the respective sets of first indices for the first number of spread symbol sets may have a sequential pattern, and second indices in the second dimension for each spread symbol set may cover the rang of the second dimension.
  • block-wise spreading in the first dimension may be performed. Spreading according to the sequential pattern in the first dimension may be referred to as sequential spreading in the first dimension.
  • FIG. 6A to FIG. 6E describe some example sequential patterns in the first dimension in accordance with some embodiments of the present disclosure.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 3
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 2, for example, the parameter occ-Length of 2. Based on the parameter occ-index, a code book including two spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the two spreading codes sequentially in the first dimension.
  • the modulation symbols are multiplexed as two spread symbol sets in a sequential pattern along the first dimension.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book.
  • the spread symbols in the first spread symbol set and the spread symbols in the second spread symbol set span the range of the second dimension.
  • the spread symbols in the first spread symbol set and the spread symbols in the second spread symbol set have difference indices.
  • Different spread symbol sets are distinguished from each other in a sequential pattern along the first dimension.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 7
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 4, for example, the parameter occ-Length of 4. Based on the parameter occ-index, a code book including four spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the four spreading codes sequentially in the first dimension.
  • the modulation symbols are multiplexed as four spread symbol sets in a sequential pattern along the first dimension.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the third spread symbol set shown with the letter “C” is generated by applying the third spread code in the code book
  • the fourth spread symbol set shown with the letter “D” is generated by applying the fourth spread code in the code book.
  • the spread symbols in these four spread symbol sets span the range of the second dimension.
  • the spread symbols in the different spread symbol sets have difference indices.
  • Different spread symbol sets are distinguished from each other in a sequential pattern along the first dimension.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 11
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 6, for example, the parameter occ-Length of 6. Based on the parameter occ-index, a code book including six spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the six spreading codes sequentially in the first dimension.
  • the modulation symbols are multiplexed as six spread symbol sets in a sequential pattern along the first dimension.
  • the ith spread symbol set is generated by applying the ith spread code in the code book.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the third spread symbol set shown with the letter “C” is generated by applying the third spread code in the code book
  • the fourth spread symbol set shown with the letter “D” is generated by applying the fourth spread code in the code book
  • the fifth spread symbol set shown with the letter “E” is generated by applying the fifth spread code in the code book
  • the sixth spread symbol set shown with the letter “F” is generated by applying the sixth spread code in the code book.
  • the modulation symbols are multiplexed as twelve spread symbol sets in a sequential pattern along the first dimension.
  • the ith spread symbol set is generated by applying the ith spread code in the code book.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the twelfth spread symbol set shown with the letter “L” is generated by applying the twelfth spread code in the code book.
  • the ith spread symbol set may correspond to first indices divided by 4 with a remainder of i-1.
  • the first spread symbol set may correspond to first indices divided by 4 with a remainder of 0
  • the second spread symbol set may correspond to first indices divided by 4 with a remainder of 1
  • the third spread symbol set may correspond to first indices divided by 4 with a remainder of 2
  • the fourth spread symbol set may correspond to first indices divided by 4 with a remainder of 3.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 11
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 6, for example, the parameter occ-Length of 6. Based on the parameter occ-index, a code book including six spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the six spreading codes alternately in the first dimension.
  • the modulation symbols are multiplexed as six spread symbol sets in an alternate pattern along the first dimension.
  • the ith spread symbol set is generated by applying the ith spread code in the code book.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the third spread symbol set shown with the letter “C” is generated by applying the third spread code in the code book
  • the fourth spread symbol set shown with the letter “D” is generated by applying the fourth spread code in the code book
  • the fifth spread symbol set shown with the letter “E” is generated by applying the fifth spread code in the code book
  • the sixth spread symbol set shown with the letter “F” is generated by applying the sixth spread code in the code book.
  • the spread symbols in these six spread symbol sets span the range of the second dimension.
  • the spread symbols multiplexed from the same modulation symbol are adjacent in the first dimension.
  • Different spread symbol sets are distinguished from each other in an alternate pattern along the first dimension.
  • the ith spread symbol set may correspond to first indices divided by 6 with a remainder of i-1.
  • the first spread symbol set may correspond to first indices divided by 6 with a remainder of 0
  • the second spread symbol set may correspond to first indices divided by 6 with a remainder of 1
  • the third spread symbol set may correspond to first indices divided by 6 with a remainder of 2
  • the fourth spread symbol set may correspond to first indices divided by 6 with a remainder of 3
  • the fifth spread symbol set may correspond to first indices divided by 6 with a remainder of 4
  • the sixth spread symbol set may correspond to first indices divided by 6 with a remainder of 5.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 23
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 12, for example, the parameter occ-Length of 12. Based on the parameter occ-index, a code book including twelve spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the twelve spreading codes alternately in the first dimension.
  • the modulation symbols are multiplexed as twelve spread symbol sets in an alternate pattern along the first dimension.
  • the ith spread symbol set is generated by applying the ith spread code in the code book.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the twelfth spread symbol set shown with the letter “L” is generated by applying the twelfth spread code in the code book.
  • the spread symbols in these twelve spread symbol sets span the range of the second dimension.
  • the spread symbols multiplexed from the same modulation symbol are adjacent in the first dimension.
  • Different spread symbol sets are distinguished from each other in an alternate pattern along the first dimension.
  • the ith spread symbol set may correspond to first indices divided by 12 with a remainder of i-1.
  • the first spread symbol set may correspond to first indices divided by 12 with a remainder of 0
  • the second spread symbol set may correspond to first indices divided by 12 with a remainder of 1
  • the third spread symbol set may correspond to first indices divided by 12 with a remainder of 2
  • the twelfth spread symbol set may correspond to first indices divided by 12 with a remainder of 11.
  • OCC can achieve a better orthogonal property in frequency selective channel. As such, a better capacity, Block Error Rate (BLER) and throughput performance can be achieved.
  • BLER Block Error Rate
  • the spreading may be performed in the second dimension.
  • identical modulation symbols may be spread according to second indices in the second dimension by applying with respective spreading codes. If the second dimension is associated with time domain, the identical modulation symbols may be considered as being spread into different OFDM symbols.
  • the terminal device 110 may determine a second number of spreading codes based on the spreading level and the spreading code index, the second number being equal to the spreading level, for example 2, 4, 6, 8, 10, or 12.
  • the terminal device 110 may generate the second number of spread symbol sets by applying the second number of spreading codes to the plurality of modulation symbols in the second dimension.
  • each spread symbol set may correspond to the plurality of modulation symbols and has a set of second indices in the first dimension.
  • the respective sets of second indices for the second number of spread symbol sets are different. In other words, the resulting spread symbol sets are distinguished from each other in term of their second indices in the second dimension.
  • an alternate pattern in the second dimension may be employed.
  • the second number of spreading codes may be applied alternately according to second indices of the second dimension.
  • the respective sets of second indices for the second number of spread symbol sets may have an alternate pattern, and first indices in the first dimension for each spread symbol set may cover the rang of the first dimension.
  • same modulation symbols are spread with adjacent indices in the second dimension.
  • the spread symbols multiplexed from the same modulation symbol are adjacent in the second dimension.
  • Spreading according to the alternate pattern in the second dimension may be referred to as alternate spreading in the second dimension.
  • the modulation symbols are multiplexed as four spread symbol sets in an alternate pattern along the second dimension.
  • the first spread symbol set shown with the letter “A” is generated by applying the first spread code in the code book
  • the second spread symbol set shown with the letter “B” is generated by applying the second spread code in the code book
  • the third spread symbol set shown with the letter “C” is generated by applying the third spread code in the code book
  • the fourth spread symbol set shown with the letter “D” is generated by applying the fourth spread code in the code book.
  • the modulation symbols are multiplexed as six spread symbol sets in an alternate pattern along the second dimension.
  • the jth spread symbol set is generated by applying the jth spread code in the code book.
  • the spread symbols in these six spread symbol sets span the range of the first dimension.
  • the spread symbols multiplexed from the same modulation symbol are adjacent in the second dimension.
  • Different spread symbol sets are distinguished from each other in an alternate pattern along the second dimension.
  • the jth spread symbol set may correspond to second indices divided by 6 with a remainder of j-1.
  • the first spread symbol set may correspond to second indices divided by 6 with a remainder of 0
  • the second spread symbol set may correspond to second indices divided by 6 with a remainder of 1
  • the third spread symbol set may correspond to second indices divided by 6 with a remainder of 2
  • the fourth spread symbol set may correspond to second indices divided by 6 with a remainder of 3
  • the fifth spread symbol set may correspond to second indices divided by 6 with a remainder of 4
  • the sixth spread symbol set may correspond to second indices divided by 6 with a remainder of 5.
  • the first dimension has an index range from 0 to 11
  • the second dimension has an index range from 0 to 23
  • 24 modulation symbols with indices from 0 to 23 are spread.
  • the network device 120 may indicate the terminal device 110 with a spreading level of 12, for example, the parameter occ-Length of 12. Based on the parameter occ-index, a code book including twelve spreading codes may be determined. The modulation symbols may be applied (for example, multiplexed) with the twelve spreading codes alternately in the second dimension.
  • the spread symbols in these twelve spread symbol sets span the range of the second dimension.
  • the spread symbols multiplexed from the same modulation symbol are adjacent in the second dimension.
  • Different spread symbol sets are distinguished from each other in an alternate pattern along the second dimension.
  • the jth spread symbol set may correspond to second indices divided by 12 with a remainder of j-1.
  • the first spread symbol set may correspond to second indices divided by 12 with a remainder of 0
  • the second spread symbol set may correspond to second indices divided by 12 with a remainder of 1
  • the third spread symbol set may correspond to second indices divided by 12 with a remainder of 2
  • the twelfth spread symbol set may correspond to second indices divided by 12 with a remainder of 11.
  • OCC can achieve a better orthogonal property in frequency selective channel and slow time-variant channel. As such, a better capacity, BLER and throughput performance can be achieved.
  • the spreading may be performed in both the first and second dimensions.
  • identical modulation symbols may be spread according to first indices in the first dimension and second indices in the second dimension by applying with respective spreading codes. If the first dimension is associated with frequency domain and the second dimension is associated with time domain, the identical modulation symbols may be considered as being spread into different subcarrier and different OFDM symbols.
  • FIG. 10A to FIG. 10E describe some example alternate patterns in the first and second dimensions in accordance with some embodiments of the present disclosure.
  • the (first, first) spread symbol set shown with the letter “A” may correspond to first indices divided by 3 with a remainder of 0 and second indices divided by 2 with a remainder of 0;
  • the (second, first) spread symbol set shown with the letter “B” may correspond to first indices divided by 3 with a remainder of 1 and second indices divided by 2 with a remainder of 0; and so on;
  • the (third, second) spread symbol set shown with the letter “F” may correspond to first indices divided by 3 with a remainder of 2 and second indices divided by 2 with a remainder of 1.
  • the first spreading level N1 has a value of 3 and the second spreading level N2 has a value of 4.
  • the (ith, jth) spread symbol set may correspond to first indices divided by 3 with a remainder of i-1 and second indices divided by 4 with a remainder of j-1.
  • the terminal device 110 receives, from a network device, a configuration comprising a spreading level and spreading code index for a PUSCH or a PUCCH without dedicated resources.
  • the first number of spreading codes are applied sequentially according to first indices of the first dimension.
  • the second number of spreading codes are applied sequentially according to second indices of the second dimension.
  • the respective sets of second indices for the second number of spread symbol sets have a sequential pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the respective sets of second indices for the second number of spread symbol sets have an alternate pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the third number of spreading codes are applied sequentially according to first indices of the first dimension and second indices of the second dimension.
  • the respective sets of first indices for the third number of spread symbol sets have a sequential pattern
  • the respective sets of second indices for the third number of spread symbol sets have a sequential pattern
  • the third number of spreading codes are applied alternately according to first indices of the first dimension and second indices of the second dimension.
  • the respective sets of first indices for the third number of spread symbol sets have an alternate pattern
  • the respective sets of second indices for the third number of spread symbol sets have an alternate pattern
  • the first dimension has a range associated with a fourth number of subcarriers allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range associated with the spreading level, the fourth number and a fifth number of the plurality of modulation symbols.
  • the respective sets of second indices for the second number of spread symbol sets have an alternate pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the network device 120 may determine a third number of spreading codes based on the spreading level and the spreading code index, the first number being equal to the spreading level; process the data to obtain the third number of spread symbol sets; and determine the plurality of modulation symbols by applying the third number of spreading codes to the third number of spread symbol sets in both the first and second dimensions, wherein each spread symbol set corresponds to the plurality of modulation symbols and has a set of first indices in the first dimension and a set of second indices in the second dimension, and each spread symbol set is different from at least one other symbol set in at least one of the set of first indices or the set of second indices.
  • the third number of spreading codes are applied sequentially according to first indices of the first dimension and second indices of the second dimension.
  • the respective sets of first indices for the third number of spread symbol sets have a sequential pattern
  • the respective sets of second indices for the third number of spread symbol sets have a sequential pattern
  • the third number of spreading codes are applied alternately according to first indices of the first dimension and second indices of the second dimension.
  • the first dimension has a range associated with a fourth number of subcarriers allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range associated with the spreading level, the fourth number and a fifth number of the plurality of modulation symbols.
  • FIG. 14 is a simplified block diagram of a device 1400 that is suitable for implementing embodiments of the present disclosure.
  • the device 1400 can be considered as a further example implementation of any of the devices as shown in FIG. 1. Accordingly, the device 1400 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
  • the device 1400 includes a processor 1410, a memory 1420 coupled to the processor 1410, a suitable transceiver 1440 coupled to the processor 1410, and a communication interface coupled to the transceiver 1440.
  • the memory 1420 stores at least a part of a program 1430.
  • the transceiver 1440 may be for bidirectional communications or a unidirectional communication based on requirements.
  • the transceiver 1440 may include at least one of a transmitter 1442 and a receiver 1444.
  • the transmitter 1442 and the receiver 1444 may be functional modules or physical entities.
  • the transceiver 1440 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones.
  • the communication interface may represent any interface that is necessary for communication with other network elements, such as X2/Xn interface for bidirectional communications between eNBs/gNBs, S1/NG interface for communication between a Mobility Management Entity (MME) /Access and Mobility Management Function (AMF) /SGW/UPF and the eNB/gNB, Un interface for communication between the eNB/gNB and a relay node (RN) , or Uu interface for communication between the eNB/gNB and a terminal device.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • RN relay node
  • Uu interface for communication between the eNB/gNB and a terminal device.
  • the memory 1420 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 1420 is shown in the device 1400, there may be several physically distinct memory modules in the device 1400.
  • the processor 1410 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 1400 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • a terminal device comprising a circuitry.
  • the circuitry is configured to: receive, from a network device, a configuration comprising a spreading level and spreading code index for a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) without dedicated resources; spread, based on the spreading level and the spreading code index, a plurality of modulation symbols in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level; and transmit, to the network device, data of the PUSCH or the PUCCH without dedicated resources based on the spread plurality of modulation symbols.
  • the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
  • a network device comprising a circuitry.
  • the circuitry is configured to: transmit, to a terminal device, a configuration comprising a spreading level and spreading code index for a Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH) without dedicated resources; receive, from the terminal device, data of the PUSCH or the PUCCH without dedicated resources; and process the data to obtain a plurality of modulation symbols, wherein the plurality of modulation symbols is spread in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a span of a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • the circuitry may be configured to perform any method implemented by the network device as discussed above.
  • the first apparatus may comprise means for performing the respective operations of the method 1200. In some example embodiments, the first apparatus may further comprise means for performing other operations in some example embodiments of the method 1200.
  • the means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
  • a network apparatus comprises means for transmitting, to a terminal device, a configuration comprising a spreading level and spreading code index for a Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH) without dedicated resources; means for receiving, from the terminal device, data of the PUSCH or the PUCCH without dedicated resources; and means for processing the data to obtain a plurality of modulation symbols, wherein the plurality of modulation symbols is spread in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a span of a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • the second apparatus may comprise means for performing the respective operations of the method 1300. In some example embodiments, the second apparatus may further comprise means for performing other operations in some example embodiments of the method 1300.
  • the means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
  • the terminal device is caused to: determine a first number of spreading codes based on the spreading level and the spreading code index, the first number being equal to the spreading level; and generate the first number of spread symbol sets by applying the first number of spreading codes to the plurality of modulation symbols in the first dimension, wherein each spread symbol set corresponds to the plurality of modulation symbols and has a set of first indices in the first dimension, and respective sets of first indices for the first number of spread symbol sets are different.
  • the first number of spreading codes are applied sequentially according to first indices of the first dimension.
  • the first number of spreading codes are applied alternately according to first indices of the first dimension.
  • the respective sets of first indices for the first number of spread symbol sets have an alternate pattern, and second indices in the second dimension for each spread symbol set cover the rang of the second dimension.
  • the second number of spreading codes are applied sequentially according to second indices of the second dimension.
  • the second number of spreading codes are applied alternately according to second indices of the second dimension.
  • the respective sets of second indices for the second number of spread symbol sets have an alternate pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the respective sets of first indices for the third number of spread symbol sets have a sequential pattern
  • the respective sets of second indices for the third number of spread symbol sets have a sequential pattern
  • the respective sets of first indices for the third number of spread symbol sets have an alternate pattern
  • the respective sets of second indices for the third number of spread symbol sets have an alternate pattern
  • the first dimension has a range associated with a fourth number of subcarriers allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range associated with the spreading level, the fourth number and a fifth number of the plurality of modulation symbols.
  • a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, a configuration comprising a spreading level and spreading code index for a Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH) without dedicated resources; receive, from the terminal device, data of the PUSCH or the PUCCH without dedicated resources; and process the data to obtain a plurality of modulation symbols, wherein the plurality of modulation symbols is spread in at least one of a first dimension or a second dimension, wherein the first dimension has a range associated with a span of a frequency band allocated for the PUSCH or the PUCCH without dedicated resources and the second dimension has a range at least associated with the spreading level.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • the network device is caused to: determine a first number of spreading codes based on the spreading level and the spreading code index, the first number being equal to the spreading level; process the data to obtain the first number of spread symbol sets; and determine the plurality of modulation symbols by applying the first number of spreading codes to the first number of spread symbol sets in the first dimension, wherein each spread symbol set corresponds to the plurality of modulation symbols and has a set of first indices in the first dimension, and respective sets of first indices for the first number of spread symbol sets are different.
  • the first number of spreading codes are applied sequentially according to first indices of the first dimension.
  • the respective sets of first indices for the first number of spread symbol sets have a sequential pattern, and second indices in the second dimension for each spread symbol set cover the rang of the second dimension.
  • the first number of spreading codes are applied alternately according to first indices of the first dimension.
  • the respective sets of first indices for the first number of spread symbol sets have an alternate pattern, and second indices in the second dimension for each spread symbol set cover the rang of the second dimension.
  • the second number of spreading codes are applied sequentially according to second indices of the second dimension.
  • the respective sets of second indices for the second number of spread symbol sets have a sequential pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the second number of spreading codes are applied alternately according to second indices of the second dimension.
  • the respective sets of second indices for the second number of spread symbol sets have an alternate pattern, and first indices in the first dimension for each spread symbol set cover the rang of the first dimension.
  • the network device is caused to: determine a third number of spreading codes based on the spreading level and the spreading code index, the first number being equal to the spreading level; process the data to obtain the third number of spread symbol sets; and determine the plurality of modulation symbols by applying the third number of spreading codes to the third number of spread symbol sets in both the first and second dimensions, wherein each spread symbol set corresponds to the plurality of modulation symbols and has a set of first indices in the first dimension and a set of second indices in the second dimension, and each spread symbol set is different from at least one other symbol set in at least one of the set of first indices or the set of second indices.
  • the respective sets of first indices for the third number of spread symbol sets have a sequential pattern
  • the respective sets of second indices for the third number of spread symbol sets have a sequential pattern
  • a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
  • a network device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the network device discussed above.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
  • a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
  • a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the process or method as described above with reference to FIGS. 1 to 14.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.

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Abstract

Des modes de réalisation de la présente divulgation concernent une solution d'étalement dans une transmission en liaison montante. Dans une solution, un dispositif terminal reçoit, en provenance d'un dispositif de réseau, une configuration comprenant un niveau d'étalement et un indice de code d'étalement pour un canal partagé de liaison montante physique (PUSCH) ou un canal de commande de liaison montante physique (PUCCH) sans ressources dédiées. Le dispositif terminal étale, sur la base du niveau d'étalement et de l'indice de code d'étalement, une pluralité de symboles de modulation dans une première dimension et/ou une seconde dimension. La première dimension a une plage associée à une bande de fréquences attribuée au PUSCH ou au PUCCH sans ressources dédiées et la seconde dimension a une plage au moins associée au niveau d'étalement. Le dispositif terminal transmet, au dispositif de réseau, des données du PUSCH ou du PUCCH sans ressources dédiées sur la base de la pluralité d'étalement de symboles de modulation.
PCT/CN2023/140447 2023-12-20 2023-12-20 Dispositifs et procédés d'étalement dans transmission en liaison montante Pending WO2025129534A1 (fr)

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US20040114552A1 (en) * 2002-11-27 2004-06-17 Lim Kwang Jae Apparatus and method for transmitting packet in forward link of multibeam satellite communication system
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US20090245329A1 (en) * 2006-09-06 2009-10-01 France Telecom Spread transmission method with power allocation per user and per symbol
CN102835086A (zh) * 2010-04-05 2012-12-19 Lg电子株式会社 在无线通信系统中发送控制信息的方法和设备
WO2017010708A1 (fr) * 2015-07-10 2017-01-19 한국전자통신연구원 Procédé et dispositif d'émission d'une rétroaction de grande capacité dans un système cellulaire de communication sans fil basé sur l'agrégation de porteuses
US20170295000A1 (en) * 2016-04-06 2017-10-12 Qualcomm Incorporated Unified reference signal design for enhanced component carriers

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040114552A1 (en) * 2002-11-27 2004-06-17 Lim Kwang Jae Apparatus and method for transmitting packet in forward link of multibeam satellite communication system
US20090245329A1 (en) * 2006-09-06 2009-10-01 France Telecom Spread transmission method with power allocation per user and per symbol
CN101534278A (zh) * 2009-04-10 2009-09-16 北京大学 时频扩展的正交频分复用收发装置、方法及系统
CN102835086A (zh) * 2010-04-05 2012-12-19 Lg电子株式会社 在无线通信系统中发送控制信息的方法和设备
WO2017010708A1 (fr) * 2015-07-10 2017-01-19 한국전자통신연구원 Procédé et dispositif d'émission d'une rétroaction de grande capacité dans un système cellulaire de communication sans fil basé sur l'agrégation de porteuses
US20170295000A1 (en) * 2016-04-06 2017-10-12 Qualcomm Incorporated Unified reference signal design for enhanced component carriers

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