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WO2020056645A1 - Procédé et appareil - Google Patents

Procédé et appareil Download PDF

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Publication number
WO2020056645A1
WO2020056645A1 PCT/CN2018/106564 CN2018106564W WO2020056645A1 WO 2020056645 A1 WO2020056645 A1 WO 2020056645A1 CN 2018106564 W CN2018106564 W CN 2018106564W WO 2020056645 A1 WO2020056645 A1 WO 2020056645A1
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WO
WIPO (PCT)
Prior art keywords
resource
feedback
packet
resources
pool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/106564
Other languages
English (en)
Inventor
Hua Chao
Li Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to PCT/CN2018/106564 priority Critical patent/WO2020056645A1/fr
Priority to CN201880097756.9A priority patent/CN112740600B/zh
Publication of WO2020056645A1 publication Critical patent/WO2020056645A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • This disclosure relates to communications, and more particularly to a method and apparatus in a wireless communication system.
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as user terminals, base stations/access points and/or other nodes by providing carriers between the various entities involved in the communications path.
  • a communication system can be provided, for example, by means of a communication network and one or more compatible communication devices.
  • the communication sessions may comprise, for example, communication of data for carrying communications such as voice, electronic mail (email) , text message, multimedia and/or content data and so on.
  • Non-limiting examples of services provided comprise two-way or multi-way calls, data communication or multimedia services and access to a data network system, such as the Internet.
  • a method comprising: selecting a plurality of resources from a pool of common resources available to a plurality of communication devices, different ones of said resources being used for sending respective copies of a first packet; causing a first copy of the first packet to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources; and receiving from a base station feedback in a first feedback resource, said first feedback resource being related to the first resource.
  • the feedback may be per common resource and not per communication device.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • two or more copies of the first packet may be transmitted.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • the method may comprise in response to receiving no acknowledgement in said first feedback resource for said first communication device, monitoring a second feedback resource for acknowledgement information associated with the first copy of the packet.
  • the second feedback resource may be provided within a window.
  • the method may comprise, in response to receiving no acknowledgment in said first feedback resource for said first communication device, causing a second copy of said first packet to be transmitted using a second resource of said plurality of resources.
  • the second copy of said first packet may only be transmitted if no acknowledgement for said first communication device is received in said second feedback resource and said first feedback resource.
  • the feedback in said first feedback resource may comprise a negative acknowledgment, said negative acknowledgement being for a plurality of communication devices which selected the first resource of said pool of common resources.
  • the negative acknowledgement may be indicative of a decoding failure of packets from the plurality communication devices which selected said first resource of said pool of common resources.
  • the feedback in said first feedback resource may comprise an acknowledgement of a different communication device of said plurality of communication devices.
  • the feedback in the first feedback resource may be an acknowledgement for said first communication device and in response thereto no further copies of said first packet are caused to be transmitted.
  • the selecting may comprise selecting a defined number of resources corresponding to a defined number of copies of said first packet.
  • the method may comprise monitoring said first feedback resource.
  • the respective feedback resource may have a predefined timing and/or frequency relationship with respect to said respective resource of the pool of common resources.
  • the respective feedback resource may be provided k time slots after said respective resource of the pool of common resources.
  • the value of k may be configured by a base station.
  • the method may comprise receiving information from a base station, said information indicating a first respective feedback resource to be monitored and a second respective feedback resource to be monitored.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • the method may be performed by an apparatus.
  • the apparatus may be provided in a user device.
  • a method comprising: causing a first copy of a first packet to be transmitted to a base station from a first communication device, said first copy of said first packet being transmitted on a first resource of a pool of common resources; monitoring a first feedback resource associated with the first resource for an acknowledgement associated with said first communication device; and if no acknowledgement for said first communication is received, causing a second feedback resource within the second feedback window to be monitored.
  • the method may be performed by an apparatus.
  • the apparatus may be provided in a user device.
  • a method comprising: causing information to be transmitted to a plurality of communication devices, said information indicating a first feedback resource to be monitored and a second feedback resource to be monitored; determining for a first resource of a pool of common resources a decoding failure, said pool of common resources being available to said plurality of communication devices, said decoding failure being a result of a plurality of packets from a plurality of communication devices being transmitted in said first resource; and causing a negative acknowledgement to be transmitted in a first feedback resource related to said first resource, said negative acknowledgement being for said first resource of said pool of common resources.
  • the feedback is per common resource and not per communication device.
  • the first resource may be provided by one or more resource units of the pool of common resources.
  • the first feedback resource may have a predefined timing and/or frequency relationship with respect to said first resource.
  • the first feedback resource may be provided k time slots after said first resource.
  • the value of k may be configured by a base station.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • the method may comprise successfully decoding a second copy of a first packet received from a first of said plurality of communication devices in a second resource of said common pool of resources and removing a first copy of said first packet from the plurality of packets received from said plurality of communication devices in said first resource.
  • the method may comprise determining if a second of said plurality of packets received from a second of said plurality of communication devices in said first resource is decodable after removing said first packet and if so, decoding that second packet and causing acknowledgement information to be sent on a second feedback resource.
  • the said second feedback resource may be defined with respect to said first resource and may be later than said first feedback resource.
  • the method may comprise configuring the size of the pool of common resources
  • At least one communication device may be in an idle state.
  • the method may be performed by an apparatus.
  • the apparatus may be provided in a base station.
  • apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to: select a plurality of resources from a pool of common resources available to a plurality of communication devices, different ones of said resources being used for sending respective copies of a first packet; cause a first copy of the first packet to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources; receive from a base station feedback in a first feedback resource, said first feedback resource being related to the first resource.
  • the feedback may be per common resource and not per communication device.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • two or more copies of the first packet may be transmitted.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to, in response to receiving no acknowledgement in said first feedback resource for said first communication device, monitor a second feedback resource for acknowledgement information associated with the first copy of the packet.
  • the second feedback resource may be provided within a window.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to, in response to receiving no acknowledgment in said first feedback resource for said first communication device, cause a second copy of said first packet to be transmitted using a second resource of said plurality of resources.
  • the second copy of said first packet may only be transmitted if no acknowledgement for said first communication device is received in said second feedback resource and said first feedback resource.
  • the feedback in said first feedback resource may comprise a negative acknowledgment, said negative acknowledgement being for a plurality of communication devices which selected the first resource of said pool of common resources.
  • the negative acknowledgement may be indicative of a decoding failure of packets from the plurality communication devices which selected said first resource of said pool of common resources.
  • the feedback in said first feedback resource may comprise an acknowledgement of a different communication device of said plurality of communication devices.
  • the feedback in the first feedback resource may be an acknowledgement for said first communication device and in response thereto no further copies of said first packet are caused to be transmitted.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to select a defined number of resources corresponding to a defined number of copies of said first packet.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to monitor said first feedback resource.
  • the respective feedback resource may have a predefined timing and/or frequency relationship with respect to said respective resource of the pool of common resources.
  • the respective feedback resource may be provided k time slots after said respective resource of the pool of common resources.
  • the value of k may be configured by a base station.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to receive information from a base station, said information indicating a first respective feedback resource to be monitored and a second respective feedback resource to be monitored.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to: cause a first copy of a first packet to be transmitted to a base station from a first communication device, said first copy of said first packet being transmitted on a first resource of a pool of common resources; monitor a first feedback resource associated with the first resource for an acknowledgement associated with said first communication device; and if no acknowledgement for said first communication is received, cause a second feedback resource within the second feedback window to be monitored.
  • apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to: cause information to be transmitted to a plurality of communication devices, said information indicating a first feedback resource to be monitored and a second feedback resource to be monitored; cause a base station to determine for a first resource of a pool of common resources a decoding failure, said pool of common resources being available to said plurality of communication devices, said decoding failure being a result of a plurality of packets from a plurality of communication devices being transmitted in said first resource; and cause a negative acknowledgement to be transmitted in a first feedback resource related to said first resource, said negative acknowledgement being for said first resource of said pool of common resources.
  • the feedback is per common resource and not per communication device.
  • the first resource may be provided by one or more resource units of the pool of common resources.
  • the first feedback resource may have a predefined timing and/or frequency relationship with respect to said first resource.
  • the first feedback resource may be provided k time slots after said first resource.
  • the value ofk may be configured by a base station.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to successfully decode a second copy of a first packet received from a first of said plurality of communication devices in a second resource of said common pool of resources and remove a first copy of said first packet from the plurality of packets received from said plurality of communication devices in said first resource.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to determine if a second of said plurality of packets received from a second of said plurality of communication devices in said first resource is decodable after removing said first packet and if so, decode that second packet and causing acknowledgement information to be sent on a second feedback resource.
  • the said second feedback resource may be defined with respect to said first resource and may be later than said first feedback resource.
  • the at least one memory and the computer program code may be configured, with the at least one processor, to cause the apparatus to configuring the size of the pool of common resources
  • At least one communication device may be in an idle state.
  • an apparatus comprising means for: selecting a plurality of resources from a pool of common resources available to a plurality of communication devices, different ones of said resources being used for sending respective copies of a first packet; causing a first copy of the first packet to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources; and receiving from a base station feedback in a first feedback resource, said first feedback resource being related to the first resource.
  • the feedback may be per common resource and not per communication device.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • two or more copies of the first packet may be transmitted.
  • the resource used for transmitting a respective copy of the first packet may be provided by one or more resource units of the pool of common resources.
  • the means may in response to receiving no acknowledgement in said first feedback resource for said first communication device, monitor a second feedback resource for acknowledgement information associated with the first copy of the packet.
  • the second feedback resource may be provided within a window.
  • the means may, in response to receiving no acknowledgment in said first feedback resource for said first communication device, cause a second copy of said first packet to be transmitted using a second resource of said plurality of resources.
  • the second copy of said first packet may only be transmitted if no acknowledgement for said first communication device is received in said second feedback resource and said first feedback resource.
  • the feedback in said first feedback resource may comprise a negative acknowledgment, said negative acknowledgement being for a plurality of communication devices which selected the first resource of said pool of common resources.
  • the negative acknowledgement may be indicative of a decoding failure of packets from the plurality communication devices which selected the first resource of said pool of common resources.
  • the feedback in said first feedback resource may comprise an acknowledgement of a different communication device of said plurality of communication devices.
  • the feedback in the first feedback resource may be an acknowledgement for said first communication device and in response thereto no further copies of said first packet are caused to be transmitted.
  • the means may be for selecting a defined number of resources corresponding to a defined number of copies of said first packet.
  • the means may be for monitoring said first feedback resource.
  • the respective feedback resource may have a predefined timing and/or frequency relationship with respect to said respective resource of the pool of common resources.
  • the respective feedback resource may be provided k time slots after said respective resource of the pool of common resources.
  • the value of k may be configured by a base station.
  • the means may be for receiving information from a base station, said information indicating a first respective feedback resource to be monitored and a second respective feedback resource to be monitored.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • the apparatus may be provided in a user device.
  • an apparatus comprising means for: causing a first copy of a first packet to be transmitted to a base station from a first communication device, said first copy of said first packet being transmitted on a first resource of a pool of common resources; monitoring a first feedback resource associated with the first resource for an acknowledgement associated with said first communication device; and if no acknowledgement for said first communication is received, causing a second feedback resource within the second feedback window to be monitored.
  • the apparatus may be provided in a user device.
  • an apparatus comprising means for: causing information to be transmitted to a plurality of communication devices, said information indicating a first feedback resource to be monitored and a second feedback resource to be monitored; determining for a first resource of a pool of common resources a decoding failure, said pool of common resources being available to said plurality of communication devices, said decoding failure being a result of a plurality of packets from a plurality of communication devices being transmitted in said first resource; and causing a negative acknowledgement to be transmitted in a first feedback resource related to said first resource, said negative acknowledgement being for said first resource of said pool of common resources.
  • the feedback is per common resource and not per communication device.
  • the first resource may be provided by one or more resource units of the pool of common resources.
  • the first feedback resource may have a predefined timing and/or frequency relationship with respect to said first resource.
  • the first feedback resource may be provided k time slots after said first resource.
  • the value ofk may be configured by a base station.
  • the information about the first feedback resource and the second feedback resource may be sent together or separately.
  • the means may be for successfully decoding a second copy of a first packet received from a first of said plurality of communication devices in a second resource of said common pool of resources and removing a first copy of said first packet from the plurality of packets received from said plurality of communication devices in said first resource.
  • the means may be for determining if a second of said plurality of packets received from a second of said plurality of communication devices in said first resource is decodable after removing said first packet and if so, decoding that second packet and causing acknowledgement information to be sent on a second feedback resource.
  • the said second feedback resource may be defined with respect to said first resource and may be later than said first feedback resource.
  • the means may be for configuring the size of the pool of common resources
  • At least one communication device may be in an idle state.
  • the apparatus may be provided in a base station.
  • An apparatus may comprise means for performing the actions of the method as described above.
  • An apparatus may be configured to perform the actions of the method as described above.
  • a non-transitory computer readable medium comprising program instructions thereon for performing at least the following: selecting a plurality of resources from a pool of common resources available to a plurality of communication devices, different ones of said resources being used for sending respective copies of a first packet; causing a first copy of the first packet to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources; and receiving from a base station feedback in a first feedback resource, said first feedback resource being related to the first resource.
  • a non-transitory computer readable medium comprising program instructions thereon for performing at least the following: causing a first copy of a first packet to be transmitted to a base station from a first communication device, said first copy of said first packet being transmitted on a first resource of a pool of common resources; monitoring a first feedback resource associated with the first resource for an acknowledgement associated with said first communication device; and if no acknowledgement for said first communication is received, causing a second feedback resource within the second feedback window to be monitored.
  • a non-transitory computer readable medium comprising program instructions thereon for performing at least the following: causing information to be transmitted to a plurality of communication devices, said information indicating a first feedback resource to be monitored and a second feedback resource to be monitored; determining for a first resource of a pool of common resources a decoding failure, said pool of common resources being available to said plurality of communication devices, said decoding failure being a result of a plurality of packets from a plurality of communication devices being transmitted in said first resource; and causing a negative acknowledgement to be transmitted in a first feedback resource related to said first resource, said negative acknowledgement being for said first resource of said pool of common resources.
  • a computer program comprising computer executable code which when run on at least one processor is configured to cause: selecting a plurality of resources from a pool of common resources available to a plurality of communication devices, different ones of said resources being used for sending respective copies of a first packet; causing a first copy of the first packet to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources; and receiving from a base station feedback in a first feedback resource, said first feedback resource being related to the first resource.
  • a computer program comprising computer executable code which when run on at least one processor is configured to cause causing a first copy of a first packet to be transmitted to a base station from a first communication device, said first copy of said first packet being transmitted on a first resource of a pool of common resources; monitoring a first feedback resource associated with the first resource for an acknowledgement associated with said first communication device; and if no acknowledgement for said first communication is received, causing a second feedback resource within the second feedback window to be monitored.
  • a computer program comprising computer executable code which when run on at least one processor is configured to cause causing information to be transmitted to a plurality of communication devices, said information indicating a first feedback resource to be monitored and a second feedback resource to be monitored; determining for a first resource of a pool of common resources a decoding failure, said pool of common resources being available to said plurality of communication devices, said decoding failure being a result of a plurality of packets from a plurality of communication devices being transmitted in said first resource; and causing a negative acknowledgement to be transmitted in a first feedback resource related to said first resource, said negative acknowledgement being for said first resource of said pool of common resources.
  • a computer program may comprise program instructions for causing a computer to perform the method as described above.
  • a computer program product stored on a medium may cause an apparatus to perform the method as described herein.
  • An electronic device may comprise apparatus as described herein.
  • a chipset may comprise apparatus as described herein.
  • Figure 1 shows schematically an example of communications network
  • Figure 2 shows schematically an example of mobile communications device
  • Figure 3 shows schematically an example of a control apparatus.
  • Figure 4 shows a signal flow
  • Figure 5 shows the allocation of grant free access requests of communication devices to a common pool of resource units
  • Figure 6 shows the acknowledgements provided by a base station to the requests with respect to resources
  • Figure 7 shows a method flow in an apparatus of a communication device
  • Figure 8 shows a method flow in an apparatus of a base station
  • Figure 9 shows another method flow in an apparatus of a communication device:
  • Figure 10 shows another method flow in an apparatus of a communication device.
  • FIG. 1 shows schematically a system 600 of a network and communication devices.
  • the communication devices may user equipment UE.
  • the network comprises a base station.
  • a base station may be referred to a gNB (next generation NodeB) in the so-call 5G network.
  • the base station may be referred to as an eNB.
  • the network supports a first communications device 605, a second communications device 607 and a third communications device 609, all of which are within network coverage.
  • all of the communications devices 605, 607, 609 are within coverage of the gNB 601, but in some embodiments one or more of the communications devices 605, 607, 609 are mobile and can therefore move in and out of coverage of the gNB 601.
  • Other communications devices not shown in Figure 6 may move into coverage of the gNB 601.
  • some embodiments allow the communications devices 605, 607, 609 to perform grant-free uplink transmissions to the gNB 601.
  • a communication device will now be described in more detail with reference to Figure 2 showing a schematic, partially sectioned view of a communication device 700.
  • a communication device may be for example a mobile device (e.g. user equipment (UE) ) , that is, a device not fixed to a particular location, or it may be a stationary device.
  • the wireless device may need human interaction for communication, or may not need human interaction for communication.
  • the latter devices are sometimes referred to as MTC (machine type communication) devices (e.g. a sensor) .
  • MTC machine type communication
  • Such devices may only have a subset of the components and/or simplified versions of the components shown in Figure 2.
  • the term communications device is used to refer to any type of wireless communication device.
  • An appropriate communication device may be provided by any device capable of sending and receiving radio signals.
  • Non-limiting examples comprise a mobile station (MS) or mobile device such as a mobile phone or what is known as a ’smart phone’ , a computer provided with a wireless interface card or other wireless interface facility (e.g., USB dongle) , personal data assistant (PDA) or a tablet provided with wireless communication capabilities, a machine type communications device or any combinations of these or the like.
  • the communications device 700 may receive signals over an air or radio interface via appropriate apparatus for receiving and may transmit signals via appropriate apparatus for transmitting radio signals.
  • transceiver apparatus is designated schematically by block 706.
  • the transceiver apparatus 706 may be provided for example by means of a radio part and associated antenna arrangement.
  • the antenna arrangement may be arranged internally or externally to the communications device.
  • a communications device is typically provided with at least one data processing entity 701, at least one memory 702 and other possible components 703 for use in software and hardware aided execution of tasks it is designed to perform, including control of access to and communications with access systems and other communication devices.
  • the data processing, storage and other relevant control apparatus can be provided on an appropriate circuit board and/or in chipsets. This feature is denoted by reference 704.
  • the communication device may comprise an apparatus. This apparatus may comprise one or more of at least one data processing entity such as a processor and at least one memory.
  • a user may control the operation of the mobile device by means of a suitable user interface such as key pad 705, voice commands, touch sensitive screen or pad, combinations thereof or the like. This may be optional in some embodiments.
  • a suitable user interface such as key pad 705, voice commands, touch sensitive screen or pad, combinations thereof or the like. This may be optional in some embodiments.
  • a display 708, a speaker and a microphone can be also provided. One or more of these components may be optional.
  • the apparatus 800 comprises at least one memory 801, at least one data processing unit 802, 803 and an input/output interface 804.
  • the apparatus 800 or processor 802/803 can be configured to execute an appropriate software code to provide the control functions.
  • the processors 802, 803 may perform functions associated with the operation of apparatus 800.
  • the at least one memory 801 stores software modules that provide functionality when executed by the processors 802, 803.
  • the modules may include an operating system that provides operating system functionality for apparatus 800.
  • the components of apparatus 800 may be implemented in hardware, or as any suitable combination of hardware and software.
  • the apparatus 800 may be provided in an access point.
  • the access point may be a base station such as a gNB in the case of a 5G system.
  • one or more of the blocks or functions illustrated in Figure 2 or Figure 3 may be embodied as a chip (integrated circuit) , chip set or one or more dies.
  • some embodiments relate to 5G (NR) systems.
  • NR 5G
  • some embodiments may be used with any other suitable communication standard.
  • Some embodiments also may be applicable for future LTE releases or other communication standards.
  • Grant-free uplink UL based access has been proposed.
  • Grant-free based UL non-orthogonal multiple access (MA) has been defined as a transmission from a communications device which may not require a dynamic and explicit scheduling grant from the gNB.
  • a MA physical resource for “grant-free” UL transmission is comprised of a time-frequency block.
  • a MA resource is comprised of a MA physical resource and a MA signature. Since more than one UE may select the same MA physical resources among a resource pool for UL data transmission, collisions will occur.
  • a MA signature is used to detect the collision.
  • the communications device sends in step 1 a MA signature and data to the base station. This will be transmitted on the selected MA physical resource.
  • the gNB will provide feedback to the communications device in step 2.
  • the resource pool is shown as a graph of frequency against time.
  • the frequency is divided into M blocks m to m+M.
  • the time is divided into N blocks n to n+N.
  • N and M are all integers. m and n may be 1 in some embodiments.
  • N and M may have any suitable value. This provides N*M resource units (RU) where a resource unit is a resource block at a given frequency block and a given time block.
  • RU resource units
  • time-frequency repetition or so-called as diversity transmission is proposed to allow the communications device to send more than one copy of the same packet in different MA physical resources.
  • Some embodiments may address a case where the user device randomly selects the MA physical resources and the gNB has no priori information as to the selected MA physical resources.
  • FIG. 5 shows an example that each communication devices sends each packet with two copies.
  • the two elements set ⁇ F, T ⁇ represent a certain MA physical resource unit (RU) .
  • F is the frequency domain index and the T is the time domain index within the resource pool.
  • a first communications device UE1 send the first packet in the ⁇ m+2, n ⁇ as does the second communications device UE2.
  • UE1 send a second packet and a third communications device UE3 and a fourth communications device UE4 send a first packet in the ⁇ m+3, n+ 2 ⁇ .
  • UE 2 sends a second packet in the ⁇ m+4, n+3 ⁇ .
  • UE 3 sends a second packet in the ⁇ m+1, n+4 ⁇ .
  • UE 2 and UE 4 send a second packet in the ⁇ m, n+5 ⁇ .
  • successive interference cancellation SIC across a plurality of slots is used to remove the copies of already recovered transmissions from collision slots.
  • collision may happen to any copies of the same packet, recovery may be possible.
  • the recovery and removal operation may be performed in a successive manner. For example, UE1’s first copy in the ⁇ m+2, n ⁇ slot can be recovered when the UE2’s first copy is recovered and removed after the UE2’s second copy in the ⁇ m+4, n+3 ⁇ is decoded correctly.
  • UE4’s first copy in ⁇ m+3, n+2 ⁇ can be recovered after UE1’s second copy and the UE3’s first copy are recovered and removed after the UEi’s first copy in the ⁇ m+2, n ⁇ is decoded correctly and the UE3’s second copy in the ⁇ m+1, n+4 ⁇ is decoded correctly.
  • the gNB recovers one copy of a certain packet in a MA physical resource it is able to know the MA physical resource occupied by another copy of the packet.
  • Communication devices may select different MA physical resources for the transmission of a signal packet.
  • the gNB may decodes using a SIC receiver.
  • success or failure of one single packet may depend on the decoding results of other of the copies and may impact the decoding results of other packets.
  • Some embodiments may address the issue of the UE knowing when to and/or where to receive hybrid automatic repeat request HARQ feedback or other feedback for each packet.
  • HARQ has a feedback timing definition which is fixed, assuming synchronous HARQ is applied for the UL.
  • the communications device selects the first MA physical resource in e.g. ⁇ F1, T1 ⁇ and the second MA physical resource in ⁇ F2, T2 ⁇
  • the first slot it could receive the HARQ feedback is T1+k, where k is the timing between the HARQ feedback and its corresponding UL data.
  • k is the timing between the HARQ feedback and its corresponding UL data.
  • the communication device may not know whether a collision has happened between itself and other communications devices participating on the grant-free transmission in the same resource pool. Accordingly, if the communications device does not receive the acknowledgement ACK in the slot T1+k, the communications may not know when to detect the further feedback and when it can receive the ACK in the following slots. This could lead to unnecessary retransmissions of packets.
  • the HARQ feedback resources which are used to provide an acknowledgement may depend on the state of the communications device. For example, is the communications device radio resource control RRC connected or not.
  • RRC idle communication devices they have no short radio network temporary identifier RNTI and dedicated downlink DL control channel for HARQ feedback or a communications device-specific searching space. From the gNB point of view, it may not be desirable in some scenarios for the gNB to allocate or reserve a feedback resource for each communication device. This may be because the gNB may not know how many UEs participate in the grant-free transmission. If the gNB were to use common resources to convey HARQ feedback for all the RUs in the same slot for grant-free transmission with diversity, both RU index and the communications device identity UE-ID may need to be used as index to allow the all UEs to detect the right feedback block for itself. The signalling overhead in this scenario may be relatively high.
  • RRC inactive or RRC connected state UEs although each of them has short RNTI and dedicated DL control channel for HARQ feedback, sending separate HARQ feedback for all the UEs sharing the same RU may be wasteful of resources in some situations, for example when the decoding result is negative.
  • Some embodiments may provide a feedback method such as a HARQ feedback method.
  • the feedback method may be for UL grant-free transmissions.
  • the feedback method may be for transmissions with diversity.
  • Some embodiments may define feedback timing such as HARQ feedback timing.
  • Some embodiments may define feedback resources, such as HARQ feedback resources. These feedback resources may be workable for all RRC states. These feedback resources may aim to minimize communication device power consumption. These feedback resources may aim to minimize resource consumption and/or signalling overhead at the gNB
  • Some embodiments may provide a HARQ feedback method for UL grant-free transmissions with diversity.
  • the communications devices will send P copies of a packet where P is an integer ⁇ 2.
  • two levels of HARQ feedback resources for grant-free transmission with diversity are provided.
  • the gNB configures separate HARQ feedback resources per RU within the resource pool, which is applicable for all the communication devices.
  • the gNB configures limited common HARQ feedback resources for the resource pool, which is only applicable for RRC idle UEs.
  • the previously proposed UE-specific HARQ feedback resource e.g. a physical HARQ indicator channel PHICH of LTE or a communications device specific searching space in the PDCCH of 5G may be used for the second level HARQ feedback resources.
  • Some embodiments may provide two additional defined HARQ feedback status as set out in the table below.
  • the RU-NACK feedback status may not be applicable to the second level HARQ feedback resource in some embodiments.
  • the UE-ID is also conveyed.
  • Some embodiments may define a HARQ timing.
  • the timing for the ith copy in the first level HARQ feedback resource may be predefined by the system.
  • the communications device receives a first level HARQ feedback resource configured for the RU ⁇ Fi, Ti ⁇ in slot Ti+k.
  • the parameter k may be defined by an associated standard and/or configured via a SIB (system information block) .
  • SIB system information block
  • the value of k may be selected by the base station.
  • the value of k may be configured by the base station.
  • the timing for the ith copy in the second level HARQ feedback resource may be a receiving window with changeable length for different copies, [Ti+1+k, N+k] .
  • the timing for the communications device-specific HARQ feedback resources may be the same as the second level HARQ feedback resource.
  • Some embodiments may provide an improved gNB behaviour.
  • the gNB detects a MA signature in a RU ⁇ Fi, Ti ⁇ , the gNB tries to decode the data.
  • the gNB fails to decode the data of any communications devices, it sends RU-NACK in the first level HARQ feedback resource for the RU in the slot as defined above.
  • the gNB If the gNB decodes the data of any communications device successfully, the gNB knows the UE-ID and can identify the state of the communications device. Due to the effect of the SIC, the gNB may decode a copy of the data from a particular communications device successful in a slot later than the one in which the communications device sent the copy. The gNB may therefor recover the ith copy in any of the slots among time period [Ti+k, N+k] .
  • the gNB sends UE-ACK together with UE-ID in the 1st level HARQ feedback resource for the RU in the slot as defined above.
  • the gNB may send the UE-ACK based on the communications device state.
  • the gNB may send the UE-ACK together with UE-ID, in the latest second level HARQ feedback resource.
  • the gNB may send the UE-ACK in the communications device specific HARQ feedback channel.
  • Some embodiments may provide an improved communications device behaviour.
  • the communications device detects the first level HARQ feedback resource for all the RUs it sends a copy. If RU-NACK is received or nothing received for a copy, the consequent communications device behaviour depends on its state
  • the communications device For RRC idle communications device, the communications device detects all the second level HARQ feedback resources in the receiving windows of that copy until the communications device receives the UE-ACK or the window ends.
  • the communications device For inactive state or connected state communications devices, the communications device detects the UE-specific HARQ feedback channel in the receiving window of the copy until it receives UE-ACK or the window ends.
  • the communications device In case the communications device receives RU-NACK for one or more of its copies (total number less than P) , the communications device waits for the decoding result of the next copy until all the copies are failed or one of the copies is successful.
  • Figure 6 is based on the same example of the resource pool shown in Figure 5 with the four communication devices UE1, UE2, UE3 and UE4 transmitting their two copies for the same packet in the RUs shown in Figure 5.
  • the resource pool is shown as a graph of frequency against time.
  • Figure 5 shows an example that each communication devices sends each packet with two copies.
  • each communications device will send a packet twice that is providing two copies of each packet. It should be appreciated that this is by way of example only, and in other embodiments, the number of copies of each packet which is sent may be more than two.
  • a SIC receiver of the gNB will perform a limited number of iterative steps.
  • the number of iterative steps may be 2. However, in different embodiments, the number of iterative steps may be different.
  • the communications device states are as follows: UE1-idle, UE2-idle, UE3-idle, and UE4-connected.
  • the first level HARQ feedback resource is located in the frequency-time resource of ⁇ x, y+k ⁇ .
  • Figure 6 shows the first level and second level HARQ feedback resources for the resource units in the resource pool from grant-free transmission shown in Figure 5.
  • the number of second level HARQ feedback resources may be configured by the network as L (1 ⁇ L ⁇ N) .
  • the second level HARQ feedback resource may be distributed in the time domain uniformly as shown in Figure 6.
  • the blocks referenced 50, UEI-ACK and UE4-ACK may represent second level HARQ feedback resources.
  • the remaining blocks are first level HARQ feedback resources.
  • the communications device-specific HARQ resource may be available per slot. This not shown in Figure 6 for simplicity.
  • Figure 6 is for illustrative purposes.
  • the relative locations of the first and second HARQ feedback resources is by way of example only and may be different in different embodiments.
  • Figure 6 is schematic.
  • the block size of the first and second HARQ feedback resources in the Figure as well as their relative locations is by way of example only. Other embodiments may have different relative locations and/or positions.
  • the gNB detects more than one MA signature and knows that a collision has occurred.
  • the gNB uses SIC at the slot level to decode the data. If this fails, the gNB sends RU-NACK in the first level HARQ feedback resource for the RU ⁇ m+2, n ⁇ in the slot n+k, (see Figure 6) .
  • UE1 and UE2 needs to detect all the second level HARQ feedback resources in the receiving windows of their first copy.
  • the gNB also detects more than one MA signature and fails to decode the data.
  • the gNB sends RU-NACK in the first level HARQ feedback resource for the RU ⁇ m+3, n+2 ⁇ in the slot n+2+k, (see Figure 6) .
  • UE1 which is in idle state needs to detect all the second level HARQ feedback resources in the receiving windows of its second copy.
  • UE3 which is in the idle state needs to detect all the second level HARQ feedback resources in the receiving windows of its first copy.
  • Connected state UE4 needs to detect the UE-specific HARQ feedback channel in the receiving window of its first copy.
  • the gNB only detects one MA signature and decodes the data of UE2 successfully.
  • the gNB sends the UE-ACK together with the UE2’s UE-ID in the first level HARQ feedback resource for the RU ⁇ m+4, n+3 ⁇ in the slot n+3+k.
  • UE2 After UE2 received UE-ACK with its UE-ID in the first level HARQ feedback resource for the RU ⁇ m+4, n+3 ⁇ , UE2 knows its packet in the resource pool is received correctly.
  • the gNB Since the gNB also knows in the RU ⁇ m+2, n ⁇ , there is a copy of UE2, it then removes UE2’s signal in the RU ⁇ m+2, n ⁇ and decodes the UE1 successfully. Since the UE1 is in idle state, the gNB will send UE-ACK together with the UE1’s UE-ID in the latest second level HARQ feedback resource in the slot n+4+k. This is referenced UE1-ACK in Figure 6. After UE1 receives the UE-ACK with its UE-ID in the second level HARQ feedback resources, UE1 knows its packet in the resource pool is received correctly.
  • the gNB knows there is another copy of UE1 in the RU ⁇ m+3, n+2 ⁇ and removes UE l’s signal in that RU but failed to decode any other UEs.
  • the gNB then waits for decoding results for other copies.
  • the gNB decodes the data of UE3 successfully. It sends UE-ACK for UE3 in the 1st level HARQ feedback resource for the RU in the slot n+4+k. After the UE3 received UE-ACK with its UE-ID in the 1 st level HARQ feedback resource for the RU ⁇ m+1, n+4 ⁇ , it knows its packet in the resource pool is received correctly.
  • the gNB also knows in the RU ⁇ m+3, n+2 ⁇ , there is a copy of UE3. The gNB then removes UE3 in RU ⁇ m+3, n+2 ⁇ and tries to decode the remaining signal. If the decoding fails, the gNB will not proceed with the RU further since the total number of iterative steps exceed the threshold. If the decoding is successful, the gNB checks the state of UE4. Since the UE4 is in connected state, the gNB send UE-ACK for the RU ⁇ m+3, n+2 ⁇ in the UE-specific HARQ feedback resource for UE4 in the slot n+4+k. This is referenced UE4-ACK in Figure 6. After the UE4 receives the UE-ACK in the UE-specific HARQ feedback resource, UE4 knows its packet in the resource pool is received correctly
  • UE2 and UE4 do not need to send their second copy planned in the RU ⁇ m, n+5 ⁇ as shown in the Figure 5.
  • the gNB may configure the size of the pool. This may be dependent on one or factors such as expected capacity, radio environment parameters, loading and/or the like.
  • FIG. 8 An example method flow of some embodiments is shown in Figure 8.
  • step T1 the base station detects more than one MA signature and knows that a collision has occurred.
  • step T2 the base station uses SIC at the slot level to attempt to decode the data.
  • the base station sends RU-NACK in the first level feedback resource for the first RU in step T3.
  • step T4 the base station receives in a second RU a packet from the second UE.
  • step T5 the base station only detects one MA signature and decodes the data of UE2 successfully.
  • step T6 the base station sends an ACK together with the UE2’s UE-ID in the first level feedback resource associated with the second RU.
  • step T7 the base station removes UE2’s signal from the data received in the first RU.
  • step TS the base station uses SIC at slot level to decode the data from UE1 successfully.
  • step T9 the base station will send a UE-ACK together with the UE1’s UE-ID in the latest second level feedback resource in the second level feedback resource window.
  • the second level feedback resource window is usable by any of the UEs which are in an idle state.
  • step S1 the UE selects the RUs for the two copies from the resource pool.
  • step S2 the UE sends the first copy in the first RU.
  • step S3 the UE detects the first level HARQ feedback channel.
  • step S4 the UE determines if there is an UE-ACK or a RU-NACK.
  • step S5 the next step is step S5.
  • the UE determines that the transmission of the first packet has been successful and that the second copy of the packet does not need to be transmitted in the RU. The packet can thus be deleted from the packets to be transmitted.
  • step S5 the next step is step S5.
  • step S6 the UE detects the second level feedback resources in the receiving window of the sent copy.
  • step S7 the UE determines if feedback has been received in the window.
  • step S4 the next step is step S4.
  • the feedback would be UE-ACK.
  • step S8 the UE determines if the copy which has been sent is the first copy.
  • step S9 the UE determines if the receiving window has ended.
  • step S6 If the receiving window has not ended, the next step is step S6.
  • step S 10 the next step is step S 10 where there is a retransmission of the packet (not one of the two copies but a new round of diversity transmission for the packet) .
  • step S11 the UE determines if it time to send the second copy in the selected RU.
  • step S6 If it is not the time to send the second copy, then the next step is step S6.
  • step S12 the UE will send the second copy in the selected second RU.
  • Step S12 will then be followed by steps S3.
  • step S6 would be modified to detect UE specific HARQ feedback resources.
  • Some embodiments may provide a HARQ feedback method for UL grant-free transmission with diversity.
  • Some embodiments may provide a comprehensive method for all UE states.
  • the HARQ feedback resources and HARQ states of some embodiments may be one or more of resource consumption and signalling overhead efficient.
  • the HARQ feedback timing of some embodiments may help with a communications device with different RRC states to receive the feedback as quick as possible. As a result, in some embodiments, no further UL resources for other copies will be wasted if one copy is received successfully.
  • the method of Figure 9 is provided.
  • the method may be performed by an apparatus.
  • the apparatus may be provided in a user equipment.
  • step Al a plurality of resources from a pool of common resources available to a plurality of communication devices is selected. Different ones of the resources will be used for sending respective copies of a first packet. In other embodiments, the selecting may not be done by the apparatus. The selection made may a random or pseudo random selection, in some embodiments.
  • step A2 a first copy of the first packet is caused to be transmitted to a base station from a first communication device, said first copy of the first packet being transmitted on a first resource of said plurality of resources.
  • step A3 feedback is received from a base station in a first feedback resource, the first feedback resource being related to the first resource.
  • the first feedback resource may not be related to the first resource.
  • the method of Figure 10 is provided.
  • the method may be performed by an apparatus.
  • the apparatus may be provided in a user equipment.
  • step B1 information may be caused to be transmitted to a plurality of communication devices.
  • the information indicates a first feedback resource to be monitored and a second feedback resource to be monitored.
  • this step is optionally and the communication device may otherwise determine the information.
  • a decoding failure is determined for a first resource of a pool of common resources.
  • the pool of common resources is available to the plurality of communication devices.
  • the decoding failure is a result of a plurality of packets from a plurality of communication devices being transmitted in the first resource.
  • a negative acknowledgement is caused to be transmitted in a first feedback resource related to the first resource.
  • the negative acknowledgement is for said first resource of said pool of common resources.
  • the first feedback resource may not be related to the first resource.
  • the various examples shown may be implemented in hardware or in 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, although the embodiments are not limited thereto.
  • Some embodiments may be implemented by computer software executable by a data processor, such as in the processor entity, or by hardware, or by a combination of software and hardware.
  • the data processor may be provided by an apparatus.
  • the apparatus may be provided in the communications device or in the base station.
  • Computer software or program, also called program product, including software routines, applets and/or macros, may be stored in any apparatus-readable data storage medium and they comprise program instructions to perform particular tasks.
  • the computer program may be provided by a non transitory computer program product.
  • a computer program product may comprise one or more computer-executable components which, when the program is run, are configured to carry out methods are described in the present disclosure.
  • the one or more computer-executable components may be at least one software code or portions of it.
  • any blocks of the logic flow as in the Figures may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions.
  • the software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
  • the physical media is a non-transitory media.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the data processors may be of any type suitable to the local technical environment, and may comprise one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) , application specific integrated circuits (ASIC) , FPGA, gate level circuits and processors based on multi core processor architecture, as non-limiting examples.
  • Examples of the disclosed embodiments may be practiced in various components such as integrated circuit modules.
  • the design of integrated circuits is by and large a highly automated process. Complex and powerful software tools are available for converting a logic level design into a semiconductor circuit design ready to be etched and formed on a semiconductor substrate.

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Abstract

L'invention concerne un procédé consistant à sélectionner une pluralité de ressources à partir d'un ensemble de ressources communes, disponibles pour une pluralité de dispositifs de communication. Différentes ressources sont utilisées pour envoyer des copies respectives d'un premier paquet. Une première copie du premier paquet est amenée à être transmise à une station de base à partir d'un premier dispositif de communication. La première copie du premier paquet est transmise sur une première ressource de la pluralité de ressources. Le procédé consiste à recevoir d'une station de base une rétroaction dans une première ressource de rétroaction relative à la première ressource.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111727576A (zh) * 2020-05-07 2020-09-29 北京小米移动软件有限公司 上行传输方法、装置、接入网设备、终端和存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170325277A1 (en) * 2015-01-28 2017-11-09 Kyocera Corporation User terminal and base station
WO2018142264A1 (fr) * 2017-02-01 2018-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Procédés et nœuds pour l'activation ou la désactivation d'une porteuse dans un réseau de communication prenant en charge l'agrégation de porteuses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3275268B1 (fr) * 2015-03-26 2020-05-06 Intel IP Corporation Dispositifs pour des transmissions en liaison montante présentant un surdébit de signalisation réduit
WO2017000900A1 (fr) * 2015-06-30 2017-01-05 华为技术有限公司 Procédé et dispositif de transmission d'informations
CN114095131A (zh) * 2015-12-01 2022-02-25 IPCom两合公司 Ack/nack消息传送方法和用户设备装置
CN108023706A (zh) * 2016-11-03 2018-05-11 夏普株式会社 无授权传输的应答信息反馈方法、基站和用户设备
CN108365934A (zh) * 2017-01-26 2018-08-03 索尼公司 无线通信方法和无线通信设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170325277A1 (en) * 2015-01-28 2017-11-09 Kyocera Corporation User terminal and base station
WO2018142264A1 (fr) * 2017-02-01 2018-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Procédés et nœuds pour l'activation ou la désactivation d'une porteuse dans un réseau de communication prenant en charge l'agrégation de porteuses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIAOMI COMMUNICATIONS: "R1-1809174, On support of sidelink unicast, groupcast and broadcast", 3GPP TSG RAN WGI MEETING #94, 10 August 2018 (2018-08-10), XP051516544 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111727576A (zh) * 2020-05-07 2020-09-29 北京小米移动软件有限公司 上行传输方法、装置、接入网设备、终端和存储介质
WO2021223175A1 (fr) * 2020-05-07 2021-11-11 北京小米移动软件有限公司 Procédé et appareil de transmission de liaison montante, dispositif d'accès réseau, terminal et support d'enregistrement
CN111727576B (zh) * 2020-05-07 2022-06-03 北京小米移动软件有限公司 上行传输方法、装置、接入网设备、终端和存储介质

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