WO2016206006A1 - Procédé et appareil pour la transmission de données de liaison montante - Google Patents

Procédé et appareil pour la transmission de données de liaison montante Download PDF

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Publication number
WO2016206006A1
WO2016206006A1 PCT/CN2015/082139 CN2015082139W WO2016206006A1 WO 2016206006 A1 WO2016206006 A1 WO 2016206006A1 CN 2015082139 W CN2015082139 W CN 2015082139W WO 2016206006 A1 WO2016206006 A1 WO 2016206006A1
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WIPO (PCT)
Prior art keywords
ctu
transmission
dcs
ctus
uplink data
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PCT/CN2015/082139
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English (en)
Chinese (zh)
Inventor
韩玮
刘亚林
毕晓艳
Original Assignee
华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580080030.0A priority Critical patent/CN107615843B/zh
Priority to PCT/CN2015/082139 priority patent/WO2016206006A1/fr
Publication of WO2016206006A1 publication Critical patent/WO2016206006A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications and, more particularly, to a method and apparatus for uplink data transmission.
  • the selection of the uplink data sharing channels is based on the scheduling/granting mechanism and is completely affected by the base station (
  • the base station (referred to as "BS") is controlled.
  • the user equipment User Equipment, referred to as "UE”
  • UE User Equipment
  • the BS receives the request, it sends an uplink Grant to the UE. Notifying the uplink transmission resource allocated to the UE.
  • the UE performs data transmission on the granted uplink transmission resource accordingly.
  • next-generation communication network will adopt the Grant Free transmission mode to support massive user access.
  • the BS delimits the access area of the Contention Transmission Unit (CTU) in the uplink transmission resource.
  • CTU Contention Transmission Unit
  • the UE accesses the uplink transmission resource in a competitive manner in the area without following the Scheduling/Grant mechanism.
  • the UE In order to successfully perform Grant Free uplink transmission, the UE should first determine the CTU resources of the uplink transmission. Determining the CTU resources may be based on predetermined UE-CTU mapping rules known to both the UE and the BS.
  • the mapping rule can be foreseen by the UE in an implicit manner such as standard specification or firmware implementation. It can also be notified by the BS through explicit high-level signaling. For example, different mapping rules may be first defined in the standard, and then the BS notifies the UE by signaling the number of the corresponding mapping rule.
  • Different UEs are allowed to use the same signature to perform uplink access transmission.
  • multiple UEs use the same Signature to simultaneously access the same time-frequency resource (that is, the same time-frequency-code resource)
  • a collision occurs, and a corresponding advanced detection method is needed to solve the problem.
  • multiple UEs using the same time-frequency-code resource further use the same pilot, the collision is generally considered to be impossible to solve by the detection method alone.
  • This situation needs to be combined with special conflict avoidance or resolution mechanisms, such as remapping, retransmission, and so on.
  • some UEs can be remapped Go to the new CTU resources.
  • the invention provides a method and device for uplink data transmission, which can improve the reliability of data transmission and improve the utilization rate of time-frequency resources.
  • a method for uplink data transmission is provided, the method being performed by a network device, the method comprising: determining that the terminal device is capable of performing multi-antenna redundant transmission, where the multi-antenna redundant transmission refers to passing at least two The competing transmission unit CTU transmits the uplink data, and the antenna corresponding to at least two CTUs of the at least two CTUs is different, and the CTU refers to a transmission resource combining time, frequency, and code domain, or refers to time, frequency, and pilot phase.
  • a combined transmission resource or a transmission resource combining time, frequency, code domain, and pilot; determining resource indication information of a CTU used by the terminal device to perform multi-antenna redundant transmission; sending a first message, the first The message includes the resource indication information.
  • the method further includes: receiving a second message, where the second message includes a transmission capability for indicating whether the terminal device supports multiple antenna redundant transmission Instructing information, wherein the determining terminal device is capable of performing multi-antenna redundant transmission, specifically: determining, according to the transmission capability indication information, that the terminal device is capable of performing multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: exclusive use of the terminal device Link signature DCS information; CTU access area sequence number information; CTU sequence number information; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; The sequence number of the starting CTU in the access area; CTU sequence number mapping rule information.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region; and the sequence number of the starting CTU in the CTU access region.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region for multi-antenna redundant transmission; the multi-antenna redundancy The sequence number of the starting CTU in the transmitted CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU interfaces.
  • the inbound area, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or
  • the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • any one of the first to the tenth possible implementation manners of the first aspect in the eleventh possible implementation manner of the first aspect, by the at least two contention transmissions
  • the uplink data transmitted by the unit CTU is retransmitted data.
  • any one of the first to twelfth possible implementation manners of the first aspect in the thirteenth possible implementation manner of the first aspect, the method can be applied to the following Any one or more of the fields: device to device D2D domain, machine to machine M2M domain, machine class communication MTC domain.
  • a method for uplink data transmission is provided, which is performed by a terminal device, the method comprising: receiving a first message when the multi-antenna redundant transmission is enabled, the first message including the terminal device Resource indication information of a CTU for performing multi-antenna redundant transmission; transmitting uplink data according to the first message; wherein the multi-antenna redundant transmission refers to transmitting uplink data by using at least two contention transmission unit CTUs, and the at least The antennas corresponding to at least two CTUs of the two CTUs are different, and the CTU refers to a transmission resource combining time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or time and frequency. Transmission resources combined with code domain and pilot.
  • the method further includes: sending a second message, where the second message includes a transmission capability for indicating whether the terminal device supports multiple antenna redundant transmission Instructions.
  • the resource indication information includes at least one of the following information: a dedicated link of the terminal device The information of the signed DCS; the serial number information of the CTU access area; the serial number information of the CTU; the number of CTUs that the terminal device can use for redundant transmission of uplink data by multiple antennas; the number of CTUs in the CTU access area; The sequence number of the starting CTU in the incoming zone; the CTU sequence mapping rule information.
  • the CTU access area is a CTU access area for multiple antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region; and the sequence number of the starting CTU in the CTU access region.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region for multi-antenna redundant transmission; the multi-antenna redundancy The sequence number of the starting CTU in the transmitted CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU interfaces.
  • the inbound area, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or
  • the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • any one of the first to the tenth possible implementation manners of the second aspect, in the eleventh possible implementation manner of the second aspect, according to the first message transmission The uplink data is retransmitted data.
  • the transmission of the uplink data is an unauthorized transfer.
  • any one of the first to the twelfth possible implementation manners of the second aspect, in the thirteenth possible implementation manner of the second aspect, the method can be applied to the following Any one or more of the fields: device to device D2D domain, machine to machine M2M domain, machine class communication MTC domain.
  • a third aspect provides an apparatus for uplink data transmission, including: a first determining module, configured to determine that a terminal device can perform multi-antenna redundant transmission, where the multi-antenna redundant transmission refers to passing at least two competing transmission units CTU Transmitting uplink data, and the antenna corresponding to at least two CTUs of the at least two CTUs is a transmission resource combined with time, frequency, and code domain, or Refers to a transmission resource combining time, frequency, and pilot, or a transmission resource combining time, frequency, code domain, and pilot; and a second determining module that determines that the terminal device is used for redundant transmission of multiple antennas.
  • the resource indication information of the CTU; the sending module sends a first message, where the first message includes the resource indication information determined by the second determining module.
  • the device further includes: a receiving module, configured to receive a second message, where the second message includes, to indicate whether the terminal device supports multiple antenna redundancy The transmission capability indication information is transmitted; wherein the first determining module is specifically configured to: according to the transmission capability indication information received by the receiving module, determine that the terminal device is capable of performing multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: exclusive to the terminal device Link signature DCS information; CTU access area sequence number information; CTU sequence number information; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; The sequence number of the initial CTU in the access area; CTU sequence number mapping rule information;
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region; and the sequence number of the starting CTU in the CTU access region.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region for multi-antenna redundant transmission; the multi-antenna redundancy The sequence number of the starting CTU in the transmitted CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU interfaces.
  • the inbound area, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or
  • the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the uplink data transmitted by the unit CTU is retransmitted data.
  • any one of the possible implementation manners of the first to the eleventh possible implementation manners of the third aspect in the twelfth possible implementation manner of the third aspect, the uplink data transmission For unauthorized transfer.
  • the device can be applied to the following Any one or more of the fields: device to device D2D domain, machine to machine M2M domain, machine class communication MTC domain.
  • the device is a network device.
  • a fourth aspect provides an apparatus for uplink data transmission, including: a receiving module, configured to receive a first message when the multi-antenna redundant transmission is enabled, where the first message includes the apparatus for performing multi-antenna redundancy
  • the first indication module is configured to transmit uplink data according to the first message received by the receiving module, where the multi-antenna redundant transmission refers to transmitting uplink through at least two competing transmission units CTU Data, and the antenna corresponding to at least two CTUs of the at least two CTUs is a transmission resource combined with time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or , refers to the transmission resources combined with time, frequency, code domain and pilot.
  • the device further includes: a second sending module, configured to send a second message, where the second message includes a message indicating whether the device supports multiple antennas Transmission capability indication information for redundant transmission.
  • the resource indication information includes at least one of the following information: a dedicated link of the terminal device The information of the signed DCS; the serial number information of the CTU access area; the serial number information of the CTU; the number of CTUs that the terminal device can use for redundant transmission of uplink data by multiple antennas; the number of CTUs in the CTU access area; The sequence number of the starting CTU in the incoming zone; the CTU sequence mapping rule information.
  • the CTU access area is a CTU access area for multiple antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region; the CTU The sequence number of the starting CTU in the access zone.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: The DCS of the terminal device; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access region for multi-antenna redundant transmission; the multi-antenna redundancy The sequence number of the starting CTU in the transmitted CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU interfaces The inbound area, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes CTU access areas belonging to different TTIs.
  • the first message further includes transmission mode indication information; or
  • the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • any one of the first to the tenth possible implementation manners of the fourth aspect in the eleventh possible implementation manner of the fourth aspect, is retransmitted data.
  • any one of the possible implementation manners of the first to the eleventh possible implementation manners of the fourth aspect in the twelfth possible implementation manner of the fourth aspect, is an unauthorized transfer.
  • the device can be applied to the following Any one or more of the fields: device to device D2D domain, machine to machine M2M domain, machine class communication MTC domain.
  • the device is a terminal device.
  • the network device determines that the terminal device can perform multi-antenna redundant transmission, and determines the resource indication of the CTU used by the terminal device to perform multi-antenna redundant transmission.
  • the first message including the resource indication information is sent to the terminal device, and the data is transmitted by the terminal device by using at least two CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different.
  • the reliability of transmission improves the utilization of time-frequency resources.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present invention is applied;
  • FIG. 2 is a schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a correspondence relationship between a CTU sequence number and a time-frequency code resource between multiple antennas according to an embodiment of the present invention
  • FIG. 5(a) to (c) are schematic diagrams showing a mapping relationship between a terminal device and a CTU corresponding to different antennas in the same TTI according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a mapping relationship between a terminal device and a CTU corresponding to different antennas in multiple TTIs according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of transmitting uplink data in a diversity transmission mode according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a method for uplink data transmission according to another embodiment of the present invention.
  • FIG. 10 is another schematic flowchart of a method for uplink data transmission according to another embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a method for uplink data transmission according to still another embodiment of the present invention.
  • FIG. 12 is another schematic flowchart of a method for uplink data transmission according to still another embodiment of the present invention.
  • FIG. 13 is a schematic flowchart of a method for uplink data transmission according to still another embodiment of the present invention.
  • FIG. 14 is a schematic block diagram of an apparatus for uplink data transmission according to an embodiment of the present invention.
  • 15 is another schematic block diagram of an apparatus for uplink data transmission according to an embodiment of the present invention.
  • 16 is a schematic block diagram of an apparatus for uplink data transmission according to another embodiment of the present invention.
  • FIG. 17 is another schematic block diagram of an apparatus for uplink data transmission according to another embodiment of the present invention.
  • FIG. 18 is a schematic block diagram of an apparatus for uplink data transmission according to still another embodiment of the present invention.
  • 19 is a schematic block diagram of an apparatus for uplink data transmission according to still another embodiment of the present invention.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • the solution of the embodiment of the present invention can be applied to an existing cellular communication system, such as Global System for Mobile Communication (GSM), and Wideband Code Division Multiple Access (WCDMA).
  • GSM Global System for Mobile Communication
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • the supported communication is mainly for voice and data communication.
  • a traditional base station supports a limited number of connections and is easy to implement.
  • the next-generation mobile communication system will support not only traditional communication, but also machine-to-machine (M2M) communication, or Machine Type Communication (MTC) communication.
  • M2M machine-to-machine
  • MTC Machine Type Communication
  • V2V device-to-device
  • a large number of connections require more resources to access the terminal device and need to consume more resources for the transmission of scheduling signaling related to the data transmission of the terminal device. According to an embodiment of the present invention The solution can effectively solve the above resource consumption problems.
  • the network device is a base station, and the terminal device is a user equipment.
  • a terminal device may also be referred to as a user equipment (User Equipment, abbreviated as "UE") user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal. , a wireless communication device, a user agent, or a user device.
  • the terminal device may be a station (Station, simply referred to as "ST”) in a Wireless Local Area Networks (“WLAN”), and may be a cellular phone, a cordless phone, or a Session Initiation Protocol (Session Initiation Protocol).
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • handheld device with wireless communication capabilities computing device or connected to Other processing devices for wireless modems, in-vehicle devices, wearable devices, and terminal devices in future 5G networks.
  • the network device may be a device for communicating with the mobile device, such as a network device, and the network device may be an Access Point (AP) in the WLAN, and Code Division Multiple Access (referred to as “Code Division Multiple Access”).
  • AP Access Point
  • Code Division Multiple Access referred to as “Code Division Multiple Access”.
  • a base station in GSM or “CDMA”
  • BTS Base Transceiver Station
  • NodeB base station
  • NB Long Term Evolution
  • eNB Evolution Base Node B
  • LTE Long Term Evolution
  • a computer readable medium can include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (eg, a compact disk (“CD”), a digital versatile disk (Digital Versatile) Disk (referred to as "DVD”), etc.), smart card and flash memory device (for example, Erasable Programmable Read-Only Memory (EPROM), card, stick or key driver, etc.).
  • a magnetic storage device eg, a hard disk, a floppy disk, or a magnetic tape, etc.
  • an optical disk eg, a compact disk (“CD”), a digital versatile disk (Digital Versatile) Disk (referred to as "DVD”), etc.
  • EPROM Erasable Programmable Read-Only Memory
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • FIG. 1 shows a schematic architectural diagram of a communication system to which an embodiment of the present invention is applied.
  • the communication system 100 can include a network device 102 and terminal devices 104-114 (in the case of a UE, where the UE is used as an example, the terminal device can also be used instead) to connect through a wireless connection or a wired connection or other means. connection.
  • the communication system 100 may refer to a Public Land Mobile Network (PLMN) or a D2D network or an M2M network or other network.
  • PLMN Public Land Mobile Network
  • FIG. 1 is a simplified schematic diagram of an example, and other network devices may be included in the network. Not shown in Figure 1.
  • the unlicensed transmission may be: the network device pre-allocates and informs the terminal device of multiple transmission resources; when the terminal device has the uplink data transmission requirement, select at least one transmission resource from the plurality of transmission resources pre-allocated by the network device, and use the selected one.
  • the transmission resource sends the uplink data; the network device detects the uplink data sent by the terminal device on one or more of the pre-assigned multiple transmission resources.
  • the detection may be blind detection, or may be performed according to one of the control domains in the uplink data, or may be detected in other manners.
  • the unlicensed transmission may be: the network device pre-allocates and informs the terminal device of multiple transmission resources, so that when the terminal device has an uplink data transmission requirement, at least one transmission resource is selected from a plurality of transmission resources pre-allocated by the network device, and used.
  • the selected transmission resource sends uplink data.
  • the unlicensed transmission may be: acquiring information of a plurality of pre-assigned transmission resources, selecting at least one transmission resource from the plurality of transmission resources when the uplink data transmission request is required, and transmitting the uplink data by using the selected transmission resource.
  • the method of obtaining can be obtained from a network device.
  • the unlicensed transmission may refer to a method for implementing uplink data transmission of the terminal device without dynamic scheduling of the network device.
  • the dynamic scheduling may refer to that the network device indicates the transmission by using signaling for each uplink data transmission of the terminal device.
  • implementing uplink data transmission of the terminal device may be understood as allowing data of two or more terminal devices to perform uplink data transmission on the same time-frequency resource.
  • the transmission resource may be one or more transmission time units of transmission resources after the time when the UE receives the signaling.
  • a transmission time unit can refer to the minimum time unit of one transmission, such as transmission time interval (Transmission) Time Interval (TTI), the value can be 1ms, or it can be a preset transmission time unit.
  • TTI transmission time interval
  • TTI Transmission Time Interval
  • Unauthorized transmission may refer to: the terminal device performs uplink data transmission without requiring network device authorization.
  • the authorization may be performed by the terminal device sending an uplink scheduling request to the network device. After receiving the scheduling request, the network device sends an uplink grant to the terminal device, where the uplink grant indicates the uplink transmission resource allocated to the terminal device.
  • the unlicensed transmission may be a competitive transmission mode. Specifically, multiple terminals may simultaneously perform uplink data transmission on the same time-frequency resources allocated in advance, without requiring the base station to perform authorization.
  • the data may be included in service data or signaling data.
  • the blind detection can be understood as the detection of data that may arrive without predicting whether or not data has arrived.
  • the blind detection can also be understood as detection without explicit signaling indication.
  • the transmission resource may include, but is not limited to, a combination of one or more of the following resources:
  • time domain resources such as radio frames, subframes, symbols, etc.
  • - frequency domain resources such as subcarriers, resource blocks, etc.
  • - airspace resources such as transmit antennas, beams, etc.
  • SCMA Sparse Code Multiple Access
  • LDS Low Density Signature
  • CDMA Code Division Multiple Access
  • the above transmission resources may be transmitted according to a control mechanism including, but not limited to, the following:
  • uplink power control such as uplink transmit power upper limit control, etc.
  • Modulation coding mode setting such as transmission block size, code rate, modulation order setting, etc.
  • the above transmission resources may be further divided into one or more Contention Transmission Units ("CTUs").
  • the CTU can be a basic transmission resource for unauthorized transmission.
  • a CTU may refer to a transmission resource combining time, frequency, and code domain, or may refer to a combination of time, frequency, and pilot transmission, or may refer to a transmission resource combining time, frequency, code domain, and pilot.
  • the access area of the CTU may refer to a time-frequency area for unauthorized transmission.
  • Patent No. PCT/CN2014/073084 the patent application entitled “System and Method for Uplink Grant-free Transmission Scheme” gives an uplink license-free transmission Technical solutions.
  • the PCT/CN2014/073084 application describes that radio resources can be divided into various CTUs, and the UE is mapped to a certain CTU.
  • Each CTU may be assigned a set of codes, and the assigned set of codes may be a set of CDMA codes, or may be an SCMA codebook set or an LDS group or a signature group.
  • Each code can correspond to a set of pilots. The user can select a code and one of the pilot groups corresponding to the code for uplink transmission.
  • the content of the PCT/CN2014/073084 application is also to be understood as a part of the content of the embodiments of the present invention, and is not described again.
  • FIG. 2 shows a schematic flow chart of a method for uplink data transmission according to an embodiment of the present invention. As shown in FIG. 2, the method 200 includes:
  • the terminal device determines that the terminal device is capable of performing multi-antenna redundant transmission, where the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and at least two antennas corresponding to at least two CTUs are different.
  • the CTU refers to a transmission resource combining time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or a transmission resource combining time, frequency, code domain, and pilot;
  • S220 Determine resource indication information of a CTU used by the terminal device to perform multi-antenna redundant transmission.
  • the network device needs to determine in advance which terminal devices can perform redundant transmission for multiple days, and Determining resource indication information of the CTU of the multi-antenna redundant transmission by the terminal device, and transmitting a first message including the resource indication information to the terminal device.
  • the network device determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, the terminal device is Transmitting the first message including the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving Utilization of time-frequency resources.
  • the method of the embodiments of the present invention can be applied to any one or more of the following fields: device to device D2D domain, machine to machine M2M domain, machine type communication MTC domain.
  • the transmission of the uplink data in the embodiment of the present invention is an unauthorized transmission.
  • the method 200 further includes:
  • S240 Receive a second message, where the second message includes transmission capability indication information used to indicate whether the terminal device supports multi-antenna redundant transmission.
  • S210 is specifically:
  • S210 Determine, according to the transmission capability indication information, that the terminal device can perform multi-antenna redundant transmission.
  • all the terminal devices UE may send a second message to the network device, including the transmission capability indication information indicating whether the terminal device supports multi-antenna redundant transmission, and the network device determines, according to the second message, whether the terminal device can perform multiple antennas. Redundant transmission.
  • the network device may receive the second message sent by the terminal device by using an uplink common control channel, where the second message may further include a corresponding requirement for the terminal device to perform multi-antenna redundant transmission, but The invention is not limited to this.
  • the terminal device may add a field related to multi-antenna redundant transmission in an RRC Connection Request message.
  • the following indication information may be added to the RRC Connection Setup Request message: grantFreeCapability BITSTRING (SIZE(8)), indicating different Grant Free support capabilities, one of the 8 bits in the indication information is used for Instructing the terminal device to support multi-antenna redundant transmission, when the value of the one bit is taken as 1, indicating that the terminal device can support multi-antenna redundant transmission (1-Enable), when the value of the one bit takes 0, indicating the The terminal device does not support multi-antenna redundant transmission (0-Disable); the candidateMappingRule indicates an alternative CTU sequence number mapping rule set, and the redundancyTransmissionPattern indicates the data transmission mode.
  • the invention is not limited to this.
  • the network device determines resource indication information of the CTU used by the UE for performing multi-antenna redundant transmission according to the second message sent by the UE and other system conditions.
  • the resource indication information determined by the network device is only related to the CTU corresponding to one antenna; if the UE supports multiple antenna redundant transmission, the system condition is not The UE is allowed to perform multi-antenna redundant transmission, and the terminal device may perform redundant transmission of a single antenna or conventional transmission of a single antenna according to the resource indication information determined by the network device, which is not limited by the present invention.
  • the terminal device that cannot support the multi-antenna redundant transmission may send the transmission capability indication information to the network device, indicating that the multi-antenna redundant transmission cannot be supported, and
  • the terminal device supporting the multi-antenna redundant transmission does not send the transmission capability indication information to the network device, and the network device does not receive the transmission capability indication information sent by the terminal device within a certain period of time, and the terminal device can be considered to support multi-antenna redundant transmission.
  • the terminal device capable of supporting the multi-antenna redundant transmission transmits the transmission capability indication information to the network device, indicating that the multi-antenna redundant transmission can be supported, and the terminal device that cannot perform the multi-antenna redundant transmission does not send the transmission capability indication information to the network device,
  • the network device does not receive the transmission capability indication information sent by the terminal device within a certain period of time, and may consider that the terminal device does not support multi-antenna redundant transmission, but the present invention is not limited thereto.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of the CTU access area; sequence number information of the CTU; The number of CTUs that the device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping rule information.
  • the network device may allocate a unique dedicated connection signature DCS to the terminal device, and the network device may directly notify the terminal device of the value of the exclusive connection signature, or may notify the terminal device of the index value of the exclusive connection signature; the CTU sequence number mapping rule
  • the information may be a specific mapping rule, or may be a number corresponding to a specific mapping rule.
  • the CTU sequence number mapping rule set ⁇ f UE-CTU ( ⁇ ) ⁇ may be predefined by a standard specification or a manner agreed by the communication parties in advance.
  • the CTU sequence number mapping rule set includes different CTU mapping rules.
  • the network device sends the corresponding mapping rule number to the UE by signaling, or the network device can also display the CTU sequence number mapping rule by displaying signaling during the communication process.
  • the invention is not limited to the present invention.
  • the network device may only notify the terminal device of the DCS allocated for the UE, and the terminal device determines, according to the correspondence between the DCS and the CTU specified by the standard or in advance, for performing multi-antenna redundant transmission.
  • the CTU of the uplink data the network device may inform the UE of the sequence number display of the determined CTU access area, and the UE connects to the CTU according to the sequence number of the CTU access area and the number of CTUs of the CTU access area specified or pre-agreed according to the standard.
  • the number of the starting CTU in the inbound area and the number of CTUs that can be used for multi-antenna redundant transmission determine the CTU used to transmit the uplink data; the network device may also inform the UE only the number of CTUs in the CTU access area.
  • the UE determines, according to the standard or pre-agreed CTU access area, the sequence number of the initial CTU in the CTU access area and the number of the CTU, the CTU for performing uplink transmission of the multi-antenna redundant data, and the network device can also Informing the UE of any one or more of the above seven kinds of information display, and the UE determines another type of information according to a standard regulation or a prior agreement, and the present invention This is not limited.
  • the network device may send the first message to the terminal device by using the high layer signaling (for example, a broadcast channel), where the first message includes, in addition to the resource indication information, whether the network device supports multiple
  • the enabling information of the antenna Grant Free transmission and the multi-antenna Grant Free transmission includes whether the network equipment supports multi-antenna Grant Free transmission, and supports modulation of multi-antenna Grant Free transmission.
  • the information such as the Modulation and Coding Scheme (MCS) may also include other information, which is not limited by the present invention.
  • MCS Modulation and Coding Scheme
  • the network device may add indication information related to multi-antenna redundant transmission in a RRC message. For example, you can add "grantFreeCapability BITSTRING(SIZE(8))" to the existing standard "SystemInformationBlockTypeX" to define different Grant Free support capabilities, 1-Enable, 0-Disable.
  • the network device may add the following field in the RRC connection setup message: ueDCSIndex, indicating the DCS sequence number unique to the UE; ctuAccessRegion, indicating the CTU access area; ctuNumber, indicating the number of CTUs in the CTU access area; ctuMappingRule indicating the UE-CTU sequence number Mapping rules.
  • ueDCSIndex indicating the DCS sequence number unique to the UE
  • ctuAccessRegion indicating the CTU access area
  • ctuNumber indicating the number of CTUs in the CTU access area
  • ctuMappingRule indicating the
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • a dedicated area for redundant transmission of multiple antennas can be delineated.
  • the genus area only allows terminal devices capable of multi-antenna redundant transmission to contend for access and perform uplink data transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; a number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; The number of CTUs in the CTU access area for multi-antenna redundant transmission; the sequence number of the starting CTU in the CTU access area for multi-antenna redundant transmission.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the terminal device capable of multi-antenna redundant transmission may have the same CTU access region as the terminal device that cannot perform multi-antenna redundant transmission, thereby improving the utilization of transmission resources. rate.
  • the CTU sequence number is uniformly ordered on the time-frequency code resources between multiple antennas.
  • the characteristic waveforms and pilot combinations used by the CTUs at the same time-frequency position corresponding to different antennas should be different.
  • the CTU0 in the access area 402 on the antenna 1 and the CTU2 in the access area 406 on the antenna 2 are at the same time-frequency position, the CTU0 adopts the characteristic waveform of the S1+P1 and the pilot combination, and the CTU2 adopts the characteristic waveform and the guide of the S1+P6. Frequency combination.
  • the CTU5 in the access area 404 on the antenna 1 is at the same time-frequency position as the CTU7 in the access area 408 on the antenna 2, the CTU5 adopts the characteristic waveform of the S2+P1 and the pilot combination, and the CTU7 adopts the characteristic waveform and pilot of the S2+P3. combination.
  • the same time-frequency position corresponding to different antennas can be distinguished by the combination of the characteristic waveform and the pilot.
  • each terminal device may be mapped to multiple CTUs in the same TTI for multiple antennas.
  • FIG. 5 (a) to (c) are diagrams showing a mapping relationship between a terminal device and a CTU corresponding to different antennas in the same TTI according to an embodiment of the present invention.
  • each CTU has two different terminal transmissions.
  • the eight terminals are mapped to the four CTUs 502-508 of the first antenna in a first combination.
  • UE1 and UE2 are mapped to CTU 502
  • UE3 and UE4 are mapped to CTU 504
  • UE5 and UE6 are mapped to CTU 506, and
  • UE7 and UE8 are mapped to CTU 508.
  • the eight terminals are mapped to the four CTUs 510-516 of the second antenna according to the second combination.
  • UE1 and UE5 are mapped to CTU 510
  • UE2 and UE6 are mapped to CTU 512
  • UE3 and UE7 are mapped to CTU 514
  • UE4 and UE8 are mapped to CTU 516.
  • the eight terminals are mapped to the four CTUs 518-524 of the third antenna in a third combination.
  • UE1 and UE3 are mapped to CTU 518
  • UE5 and UE7 are mapped to CTU 520
  • UE2 and UE4 are mapped to CTU 522
  • UE6 and UE8 are mapped to CTU 524.
  • the above terminals can be mapped to the CTUs of other antennas in other combinations.
  • multiple sets of terminals may be mapped to all or part of the above-mentioned CTU resources in whole or in part.
  • a part of UE11 and UE13 of the second group of terminals are mapped to CTU 502 and CTU 504, respectively, and a part of UE16 and UE17 of the third group of terminals are mapped to CTU 512 and CTU 514, respectively.
  • the above-mentioned terminal device can also be mapped to different CTUs according to the combination manner defined by other CTU sequence number mapping rules, which is not limited by the present invention.
  • UE1, UE2, and UE5 perform Grant Free multi-antenna redundant transmission, where UE1 is mapped to CTU 502 and CTU 510, UE2 is mapped to CTU 502 and CTU 512, and UE5 is mapped to CTUs 506 and 510.
  • UE3 and UE4 perform Grant Free regular transmission, where UE3 is mapped to CTU 504 and UE4 is mapped to CTU 508.
  • the CTU access area further includes a CTU intervention area belonging to different TTIs.
  • FIG. 6 illustrates a mapping relationship between a terminal device and a CTU corresponding to different antennas within multiple TTIs according to an embodiment of the present invention.
  • UE6 and UE8 perform Grant Free regular transmission in TTI1, where UE6 is mapped to CTU 604 and UE8 is mapped to CTU 608.
  • UE13 The Grant Free regular transmission is performed with the UE 15 in TTI3, where the UE 13 is mapped to the CTU 608 and the UE 15 is mapped to the CTU 602.
  • the UE1 is mapped to the CTU 602 in the TTI1, the CTU 602 and the CTU 610 in the TTI2.
  • UE2 is mapped to CTU 602 and CTU 610 within TTI1.
  • UE3 is mapped to CTU 610 within TTI1, CTU 610 and CTU 614 within TTI2.
  • UE4 is mapped to CTU 616 within TTI1, CTU 604 within TTI2, and CTU 612 within TTI3.
  • UE5 is mapped to CTU 606 and CTU 610 within TTI1, CTU 604 within TTI2.
  • UE9 is mapped to CTU 606 within TTI2, CTU 606 and CTU 610 within TTI3.
  • UE 10 maps to CTU 608 within TTI2 and CTU 608 within TTI3.
  • UE 11 maps to CTU 612 within TTI2 and CTU 606 within TTI3.
  • UE 14 maps to CTU 604 and CTU 614 within TTI3.
  • the network device may determine, by using the transmission mode indication information sent by the terminal device, a data transmission mode that is used when the terminal device transmits the uplink data, and further determine a specific manner for receiving the uplink data;
  • the data transmission mode used by the terminal device to perform uplink data transmission may be indicated by the display signaling, and the terminal device transmits the uplink data to the network device by using the data transmission mode indicated by the display signaling, but the invention is not limited thereto.
  • the first message further includes data transmission mode indication information; or the second message further includes data transmission mode indication information, where the data transmission mode indication information is used to indicate uplink data. Transmission mode.
  • the Grant Free airspace diversity transmission mode may be added to the existing standard transmission mode definition to determine a transmission mode when multiple antennas are redundantly transmitted. For example, according to Table 1 The method definition shown:
  • the transmission mode of the uplink data may be any specific diversity transmission mode selected by the network device and the terminal device, which is not limited by the disclosure.
  • the data of the UE i [a 0 a 1 a 2 a 3 ...] is distributed to the CTUA and the CTUB through a diversity encoder, and then transmitted to the network device through the Grant Free multi-antenna redundancy. decoder.
  • the mode of uplink data transmission may be the diversity transmission mode shown by formula (1) and formula (2):
  • the decoder of the network device then performs a corresponding diversity and receives the detection.
  • the two parties agree to confirm the receiving detection by using the ACK mode. Then, the BS will send an ACK to the UE after successful detection. If the UE does not receive an ACK after waiting for a certain period of time, it considers that the uplink transmission conflicts, and the BS fails to successfully receive the uplink data. If the UE and the BS agree to confirm the reception detection failure in the NACK mode, the BS will send a NACK to the UE after the detection fails. If the UE receives the NACK, it considers that the uplink transmission conflicts, and the BS fails to successfully receive the uplink data.
  • the uplink data transmitted by the terminal device by performing multi-antenna redundant transmission by using at least two CTUs is retransmitted data. That is to say, the terminal device may perform retransmission of uplink data according to the CTU for performing multi-antenna redundant transmission determined according to the resource indication information when the initial transmission fails.
  • the terminal device may select to retransmit part of the data that is not successfully received, or may choose to retransmit all the data in the network device.
  • the terminal device retransmits all of the uplink data, and the present invention does not limit the data transmission mode when performing retransmission.
  • the CTU for retransmission may be determined according to the new CTU sequence number mapping rule, where the new CTU sequence number mapping rule may be specified by the standard or
  • the UE and the network device have agreed in advance, and the network device may be sent to the UE through a broadcast channel or other downlink channel, which is not limited by the present invention.
  • the new CTU sequence number mapping rule may be a new mapping rule reselected from the optional mapping scheme set ⁇ f UE-CTU ( ⁇ ) ⁇ . It is also possible to re-allocate DCS i for UE i and update according to the currently adopted rule for determining the CTU sequence number. Assignment, thereby mapping UE i to a new CTU, and providing UE i with new CTU transmission resources. Can also be partially changed The assignment of one or more elements in the medium provides a partial new CTU transmission resource for UE i .
  • the invention is not limited to this.
  • the network device receives the uplink Grant Free transmission of the plurality of terminal devices.
  • the network device identifies the CTUs for performing the Grant Free multi-antenna redundant transmission according to the correspondence between the I CTU and the CTU access area and the correspondence between the I CTU and the DCS of the terminal device, and performs redundant reception on the CTUs.
  • the ACK/NACK feedback for the UE i is not detected for each CTU indicated by the I CTU, ij , but a unified ACK/NACK is performed after the UE i multi-antenna redundancy combined reception is completed. .
  • UE1 and UE2 are mapped to CTU 802
  • UE1 and UE5 are mapped to CTU 810
  • CTU 802 and CTU 810 occupy the same on the first antenna and the second antenna, respectively.
  • Time-frequency code resources so there is a conflict between CTU802 and CTU810.
  • the signal model on the corresponding CTU can be described as the following linear equations (5):
  • y 1 is the combined received signal model of the CTU 802 on the first antenna and the CTU 810 on the second antenna
  • y 2 is the received signal model of the CTU 812
  • y 3 is the received signal model of the CTU 806,
  • y 4 is the received signal model on the CTU 808.
  • X j denotes a signal transmitted by UE j
  • h ijk denotes channel information of UE j via kth antenna to y i
  • n i denotes noise received by y i .
  • the information of UE5 and UE2 can be first solved from the CTU 806 and CTU 812 without collision, and then the solved letter is utilized.
  • the interference between UE2 and UE5 to UE1 is respectively removed from the CTU802 and CTU810 combined signals, thereby finally solving UE1.
  • UE1 and UE2 are mapped to CTU 802
  • UE1 and UE5 are mapped to CTU 810
  • CTU 802 and CTU 810 occupy the same time frequency on the first antenna and the second antenna, respectively.
  • Code resources so there is a conflict between CTU802 and CTU810.
  • UE5 is mapped to CTU 806
  • UE3 is mapped to CTU 814.
  • the CTU 806 and the CTU 814 occupy the same time-frequency code resources on the first antenna and the second antenna, respectively, and thus there is a conflict between the CTU 806 and the CTU 814.
  • the signal model on the corresponding CTU can be described as the following equation (7):
  • y 1 is the combined received signal model of the CTU 802 on the first antenna and the CTU 810 on the second antenna
  • y 2 is the received signal model on the CTU 804
  • y 3 is the combined received signal of the CTU 806 on the first antenna and the CTU 814 on the second antenna Model
  • y 4 is the received signal model on CTU 808.
  • the information of UE3 and UE2 may be first solved from the CTU 804 and the CTU 808 without collision, and then the UE3 information is used to cancel the UE3 to UE5 from the combined received signal of the CTU 806 and the CTU 814.
  • the interference of the UE5 is solved, and finally the UE2 and UE5 information is used to cancel the interference of the UE1 from the combined signals of the CTU 802 and the CTU 810, and finally the UE1 is solved.
  • UE8 is mapped to CTU 808 and CTU 816, respectively, and there is no other terminal conflict, and its received signal model can be expressed as:
  • the reception model for UE 1 after the resolution of the collision is the formula (10):
  • the Grant Free multi-antenna redundant transmission provides additional spatial domain degrees of freedom for the corresponding UE to improve transmission reliability.
  • FIG. 9 shows a schematic flow chart of a method for uplink data transmission according to another embodiment of the present invention. As shown in FIG. 9, the method 300 includes:
  • the base station BS receives the report information of the user equipment UE.
  • the reporting information may be transmitted by the UE on a certain uplink common channel, and may include the enabling information of the UE multi-antenna Grant Free transmission, such as whether to support the multi-antenna Grant Free transmission, or the UE Grant Free multi-antenna.
  • Enable information for redundant transmissions such as whether to support Grant Free multi-antenna redundant transmission, and the corresponding requirements for multi-antenna redundant transmission.
  • the BS allocates a unique dedicated connection DCS sequence number to each UE according to the UE reporting information and other system conditions, delimits the multi-antenna CTU access area, and assigns a unique CTU sequence number to each CTU in the access area.
  • the BS sends the Grant Free enable information by using the high layer signaling.
  • the BS may send the enabling information by using a broadcast channel, where the enabling information may include the enabling information of the Grant Free transmission, where the enabled information of the transmission includes whether the BS supports the multi-antenna Grant Free transmission, the CTU access area,
  • the number of CTUs and information such as DCS may also include enabling information of multi-antenna Grant Free transmission, including whether the BS supports multi-antenna Grant Free transmission, and supports modulation and coding MCS of multi-antenna Grant Free redundancy transmission.
  • the transmission enable information may further include a multi-antenna CTU sequence number mapping rule, where the multi-antenna CTU sequence number mapping rule specifies a number of a CTU used by each UE to transmit uplink data.
  • the BS receives uplink data transmitted by the UE.
  • the uplink data includes uplink data transmitted by the conventional transmission UE and uplink data transmitted by the multi-antenna redundant transmission UE.
  • the BS sends an ACK/NACK to the UE.
  • the BS after receiving the uplink data, the BS performs normal transmission UE detection or multi-antenna redundant transmission UE detection, and informs the UE whether the uplink data is successfully transmitted through ACK/NACK.
  • the BS will send an ACK to the UE after successful detection. If the UE does not receive an ACK after waiting for a certain time, it considers that the uplink transmission conflicts. If the UE and the BS agree to confirm the reception detection failure in the NACK mode, the BS will send a NACK to the UE after the detection fails. If the UE receives a NACK, it considers that the uplink transmission conflicts.
  • the BS informs the UE of the remapping rule of the multi-antenna CTU by using the high layer signaling.
  • the BS receives uplink data that is transmitted by the UE according to the multi-antenna CTU remapping rule.
  • the BS sends an ACK/NACK to the UE.
  • the method 300 for the uplink data transmission may not include the S305.
  • the multi-antenna CTU remapping rule may be a mapping rule specified by the standard or a mapping rule agreed by the BS and the UE in advance.
  • FIG. 10 is another schematic flowchart of a method for uplink data transmission according to another embodiment of the present invention. As shown in FIG. 10, the method 400 can be performed by a base station, the method 400 comprising:
  • S402. Determine a multi-antenna CTU access area of the UE.
  • S407 proceeds to S409 to determine a conflict resolution solution
  • the solution one determined in S409 is: directly executing S405 and subsequent steps thereof;
  • the solution 2 determined in S409 is: performing S410, re-determining the multi-antenna CTU sequence number mapping rule; and then sequentially performing step S404 and subsequent steps;
  • the foregoing operation steps and algorithms may be performed on a Building Base Band Unite (BBU) in a network device, or may be in a cloud communication center architecture (Cloud-RAN). Execution in the processing pool.
  • BBU Building Base Band Unite
  • Cloud-RAN cloud communication center architecture
  • the invention is not limited to this.
  • the network device determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, the terminal device is Transmitting the first message including the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving Utilization of time-frequency resources.
  • the method for uplink data transmission according to the embodiment of the present invention is described in detail above with reference to FIG. 2 to FIG. 10, and the uplink data transmission according to the embodiment of the present invention will be described in detail from the terminal device side with reference to FIG. 11 to FIG. Methods. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.
  • FIG. 11 is a schematic flow chart showing a method of uplink data transmission according to still another embodiment of the present invention. As shown in FIG. 11, the method 500 includes:
  • the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, and the CTU refers to combining time, frequency, and code domain.
  • the terminal device when capable of performing multi-antenna redundant transmission, receives a first message that is sent by the network device, and includes resource indication information of the CTU for performing multi-antenna redundant transmission, and transmits the uplink data according to the first message. .
  • the terminal device when the terminal device is capable of performing multi-antenna redundant transmission, the terminal device receives, by the network device, a first message including resource indication information of the CTU for performing multi-antenna redundant transmission, And transmitting uplink data according to the first message.
  • the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • the method of the embodiments of the present invention can be applied to any one or more of the following fields: device to device D2D domain, machine to machine M2M domain, machine type communication MTC domain.
  • the transmission of the uplink data according to the first message is an unauthorized transmission.
  • the method 500 further includes:
  • S530 Send a second message, where the second message includes transmission capability indication information used to indicate whether the terminal device supports multi-antenna redundant transmission.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be implemented in the embodiment of the present invention. Form any limit.
  • S530 is executed before S510.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of the CTU access area; sequence number information of the CTU; The number of CTUs that the device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping rule information.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the number of CTUs transmitting upstream data; this is used for multi-antenna redundancy The number of CTUs in the transmitted CTU access area; the sequence number of the starting CTU in the CTU access area for multi-antenna redundant transmission.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the uplink data transmitted according to the first message is retransmitted data.
  • FIG. 13 is a schematic flowchart of a method for uplink data transmission according to still another embodiment of the present invention. As shown in FIG. 13, the method 600 can be performed by a terminal device, and the method 600 includes:
  • S602. Receive broadcast information sent by a network device.
  • the solution one determined in S606 is: directly executing S604 and subsequent steps thereof;
  • the solution 2 determined in S606 is: performing S602 and subsequent steps;
  • the UE may transmit the enabling information to the network device on a certain uplink common channel, where the enabling information may include enabling information of the UE Grant Free transmission, such as whether to support Grant Free transmission, etc. It can include enabling information for UE Grant Free multi-antenna redundant transmission, such as whether to support Grant Free multi-antenna redundant transmission, and the corresponding requirements for multi-antenna redundant transmission.
  • the broadcast information received by the UE may include the enable information of the Grant Free transmission, and the enabled information of the transmission includes whether the BS supports the multi-antenna Grant Free transmission, the CTU access area, the CTU quantity, and the DCS.
  • the information may also include the enabling information of the multi-antenna Grant Free transmission, including whether the BS supports multi-antenna Grant Free transmission, and supports modulation and coding MCS of the multi-antenna Grant Free redundant transmission.
  • the transmission enable information may further include a CTU sequence number mapping rule, where the CTU sequence number mapping rule specifies a number of a CTU used by each UE to transmit uplink data.
  • the BS will send an ACK to the UE after the successful detection. If the UE does not receive an ACK after waiting for a certain time, it considers that the uplink transmission conflicts. If the UE and the BS agree to confirm the reception detection failure in the NACK mode, the BS will send a NACK to the UE after the detection fails. If the UE receives a NACK, it considers that the uplink transmission conflicts.
  • the terminal device when the terminal device is capable of performing multi-antenna redundant transmission, the terminal device receives, by the network device, a first message including resource indication information of the CTU for performing multi-antenna redundant transmission, And transmitting uplink data according to the first message.
  • the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • the apparatus 10 includes:
  • the first determining module 11 is configured to determine that the terminal device is capable of performing multi-antenna redundant transmission, where the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and at least two of the at least two CTUs
  • the CTU corresponds to an antenna.
  • the CTU refers to a transmission resource combining time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or a combination of time, frequency, code domain, and pilot.
  • the second determining module 12 determines resource indication information of the CTU used by the terminal device to perform multi-antenna redundant transmission
  • the sending module 13 sends a first message, where the first message includes the resource indication information determined by the second determining module 12.
  • the apparatus for uplink data transmission determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, transmitting the information to the terminal device, including The first message of the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the time frequency. Utilization of resources.
  • the device 10 further includes:
  • the receiving module 14 is configured to receive a second message, where the second message includes transmission capability indication information used to indicate whether the terminal device supports multi-antenna redundant transmission;
  • the first determining module 11 is specifically configured to:
  • the terminal device According to the transmission capability indication information received by the receiving module 14, it is determined that the terminal device can perform multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of the CTU access area; sequence number information of the CTU; The number of CTUs that the device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping rule information;
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the uplink data transmitted by the at least two contention transmission unit CTUs is retransmitted data.
  • the transmission of the uplink data is an unauthorized transmission.
  • the device can be applied to any one or more fields in the following fields: device to device D2D domain, machine to machine M2M domain, machine type communication MTC field.
  • the device 10 is a network device.
  • apparatus 10 in accordance with an embodiment of the present invention may correspond to method 200 of performing uplink data transmission in embodiments of the present invention, and that the above and other operations and/or functions of various modules in apparatus 10 are respectively implemented to implement FIG. 2 and The corresponding processes of the respective methods in FIG. 3 are not described herein for the sake of brevity.
  • the apparatus for uplink data transmission determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, transmitting the information to the terminal device, including The first message of the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the time frequency. Utilization of resources.
  • the apparatus 20 includes:
  • the receiving module 21 is configured to receive, when the multi-antenna redundant transmission is enabled, the first message, where the first message includes resource indication information of the CTU used by the apparatus for performing multi-antenna redundant transmission;
  • the first sending module 22 is configured to transmit uplink data according to the first message received by the receiving module 21;
  • the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, and the CTU refers to combining time, frequency, and code domain.
  • the apparatus for uplink data transmission in the embodiment of the present invention is capable of performing multi-antenna redundant transmission, receiving, by the network device, a first message including resource indication information of a CTU for performing multi-antenna redundant transmission, and according to the The first message transmits uplink data.
  • the device can transmit the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • the device 20 further includes:
  • the second sending module 23 is configured to send a second message, where the second message includes transmission capability indication information used to indicate whether the device supports multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of the CTU access area; CTU sequence number information; the number of CTUs that the terminal device can use for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping Rule information.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna hot redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundancy.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas belonging to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the first sending module 22 optionally retransmits the data according to the uplink data transmitted by the first message.
  • the transmission of the uplink data by the first sending module 22 according to the first message is an unauthorized transmission.
  • the device can be applied to any one or more of the following fields: device to device D2D domain, machine to machine M2M domain, and machine type communication MTC domain.
  • the device is a terminal device.
  • apparatus 20 in accordance with an embodiment of the present invention may correspond to method 500 of performing uplink data transmission in embodiments of the present invention, and that the above and other operations and/or functions of various modules in apparatus 20 are respectively implemented to implement FIG.
  • the corresponding processes of the respective methods in FIG. 12 are not described herein for the sake of brevity.
  • the apparatus for uplink data transmission in the embodiment of the present invention is capable of performing multi-antenna redundant transmission, receiving, by the network device, a first message including resource indication information of a CTU for performing multi-antenna redundant transmission, and according to the The first message transmits uplink data.
  • the device can transmit the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • an embodiment of the present invention further provides an apparatus 30 for uplink data transmission.
  • the apparatus 30 includes a processor 31, a memory 32, a receiver 33, a transmitter 34, and a bus system 35.
  • the processor 31, the memory 32, the receiver 33 and the transmitter 34 are connected by a bus system 35 for storing instructions for executing instructions stored in the memory 32 for controlling the receiver 33 to receive.
  • Signal and transmitter 34 send the signal.
  • the processor 31 is used Determining that the terminal device is capable of performing multi-antenna redundant transmission, wherein the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and the antenna corresponding to at least two CTUs of the at least two CTUs is different, the CTU A transmission resource combining time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or a transmission resource combining time, frequency, code domain, and pilot; the processor 31
  • the resource indication information is used to determine the CTU of the terminal device for performing multi-antenna redundant transmission, and the transmitter 34 is configured to send the first message, where the first message includes the resource indication information determined by the processor 31.
  • the apparatus for uplink data transmission determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, transmitting the information to the terminal device, including The first message of the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the time frequency. Utilization of resources.
  • the processor 31 may be a central processing unit (“CPU"), and the processor 31 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 32 can include read only memory and random access memory and provides instructions and data to the processor 31. A portion of the memory 32 may also include a non-volatile random access memory. For example, the memory 32 can also store information of the device type.
  • the bus system 35 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 35 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 31 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 32, and the processor 31 reads the information in the memory 32 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the receiver 33 is configured to: receive a second message, where the second The message includes transmission capability indication information indicating whether the terminal device supports multi-antenna redundant transmission;
  • the processor 31 is specifically configured to: according to the transmission capability indication information received by the receiver 33, determine that the terminal device can perform multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of a CTU access area; sequence number information of a CTU; The number of CTUs for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping rule information.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundant transmission uplink.
  • the number of CTUs of data the number of CTUs in the CTU access zone; the sequence number of the starting CTU in the CTU access zone.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundant transmission uplink.
  • the number of CTUs of data the number of CTUs in the CTU access area for multi-antenna redundant transmission; the sequence number of the starting CTU in the CTU access area for multi-antenna redundant transmission.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas that belong to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the uplink data transmitted by the at least two contention transmission unit CTUs is retransmitted data.
  • the transmission of the uplink data is an unauthorized transfer.
  • the apparatus can be applied to any one or more of the following fields: device to device D2D domain, machine to machine M2M domain, machine type communication MTC domain.
  • the device is a network device.
  • the apparatus 30 may correspond to the apparatus 10 in the embodiment of the present invention, and may correspond to the corresponding body in the method according to the embodiment of the present invention, and the above-described sum of the respective modules in the apparatus 30.
  • Other operations and/or functions are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 2 and FIG. 3, and are not described herein again for brevity.
  • the apparatus for uplink data transmission determines that the terminal device can perform multi-antenna redundant transmission, and after determining the resource indication information of the CTU used by the terminal device for performing multi-antenna redundant transmission, transmitting the information to the terminal device, including The first message of the resource indication information, because the terminal device transmits the uplink data through the at least two CTUs, and the antennas corresponding to at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the time frequency. Utilization of resources.
  • an embodiment of the present invention further provides an apparatus 40 for uplink data transmission.
  • the apparatus 40 includes a processor 41, a memory 42, a transmitter 43, a receiver 44, and a bus system 45.
  • the processor 41, the memory 42, the transmitter 43, and the receiver 44 are connected by a bus system 45 for storing instructions for executing instructions stored in the memory 42 to control the transmitter 43 to transmit Signal and receiver 44 receive the signal.
  • the receiver 44 is configured to receive a first message when the multi-antenna redundant transmission is enabled, where the first message includes resource indication information of a CTU used by the apparatus for performing multi-antenna redundant transmission; the transmitter 43 is configured to: Transmitting uplink data according to the first message received by the receiver 44; wherein the multi-antenna redundant transmission refers to transmitting uplink data by using at least two competing transmission unit CTUs, and at least two CTUs of the at least two CTUs The corresponding antennas are different.
  • the CTU refers to a transmission resource combining time, frequency, and code domain, or a transmission resource combining time, frequency, and pilot, or a combination of time, frequency, code domain, and pilot. Transfer resources.
  • the apparatus for uplink data transmission in the embodiment of the present invention is capable of performing multi-antenna redundant transmission, receiving, by the network device, a first message including resource indication information of a CTU for performing multi-antenna redundant transmission, and according to the The first message transmits uplink data.
  • the device can transmit the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • the processor 41 may be a central processing unit (“CPU"), and the processor 41 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 42 can include read only memory and random access memory and provides instructions and data to the processor 41.
  • a portion of the memory 42 may also include a non-volatile random access memory.
  • the memory 42 can also store information of the device type.
  • the bus system 45 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 45 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 41 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution, or use hardware and software module groups in the processor.
  • the execution is completed.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 42, and the processor 41 reads the information in the memory 42 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the transmitter 43 is configured to: send a second message, where the second message includes transmission capability indication information used to indicate whether the device supports multi-antenna redundant transmission.
  • the resource indication information includes at least one of the following information: information of a dedicated link signature DCS of the terminal device; sequence number information of a CTU access area; sequence number information of a CTU; The number of CTUs for multi-antenna redundant transmission of uplink data; the number of CTUs in the CTU access area; the sequence number of the starting CTU in the CTU access area; CTU sequence number mapping rule information.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundant transmission uplink.
  • the number of CTUs of data the number of CTUs in the CTU access zone; the sequence number of the starting CTU in the CTU access zone.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • the serial number, DCS i is the DCS of the UE i
  • ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data
  • the N CTU is the number of CTUs in the CTU access area.
  • the CTU access area is a CTU access area for multi-antenna redundant transmission.
  • the CTU sequence number mapping rule information is a rule for determining a CTU sequence number according to any one or more of the following parameters: a DCS of the terminal device; the terminal device can be used for multiple antenna redundant transmission uplink.
  • the number of CTUs of data the number of CTUs in the CTU access area for multi-antenna redundant transmission; the sequence number of the starting CTU in the CTU access area for multi-antenna redundant transmission.
  • the rule for determining the CTU sequence number is any one or more of the following formulas:
  • I CTU-ij [(I CTU-INT + DCS i + j) modN CTU ], or
  • I CTU-ij [f(I CTU-INT +DCS i +j)modN CTU ],
  • I CTU-ij is the sequence number of the CTU used by the terminal device UE i for multi-antenna transmission uplink data
  • I CTU-INT is the CTU access region for multi-antenna redundant transmission.
  • the sequence number of the starting CTU in which DCS i is the DCS of the UE i , ⁇ i is the number of CTUs used by the UE i for multi-antenna redundant transmission of uplink data, and the N CTU is the redundant transmission for multi-antenna first transmission The number of CTUs in the CTU access area.
  • the CTU access area is one or more CTU access areas, where the multiple CTU access areas are CTU access areas that belong to the same TTI.
  • the CTU access area further includes a CTU access area that belongs to different TTIs.
  • the first message further includes transmission mode indication information; or the second message further includes transmission mode indication information;
  • the transmission mode indication information is used to indicate a transmission mode of the uplink data.
  • the transmitter 43 retransmits data according to the uplink data transmitted by the first message.
  • the transmitting of the uplink data by the transmitter 43 according to the first message is an unauthorized transmission.
  • the apparatus can be applied to any one or more of the following fields: device to device D2D domain, machine to machine M2M domain, machine type communication MTC domain.
  • the device is a terminal device.
  • the apparatus 40 may correspond to the apparatus 20 in the embodiment of the present invention, and may correspond to the corresponding body in the method according to the embodiment of the present invention, and the above-described sum of the respective modules in the apparatus 40.
  • other operations and/or functions are respectively omitted in order to implement the corresponding processes of the respective methods in FIG. 11 and FIG.
  • the apparatus for uplink data transmission in the embodiment of the present invention is capable of performing multi-antenna redundant transmission
  • the resource indication sent by the network device including the CTU for performing multi-antenna redundant transmission is received.
  • the first message of the information, and the uplink data is transmitted according to the first message.
  • the device can transmit the uplink data through the at least two CTUs, and the antennas corresponding to the at least two CTUs of the at least two CTUs are different, thereby improving the reliability of the data transmission and improving the utilization of the time-frequency resources.
  • system and “network” are used interchangeably herein. It should be understood that the term “and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be Ignore, or not execute.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un appareil de transmission de données de liaison montante. Ledit procédé comprend les étapes consistant à : déterminer qu'un dispositif terminal est apte à exécuter une transmission redondante multi-antenne, ce qui signifie que le dispositif terminal est apte à transmettre des données de liaison montante au moyen d'au moins deux unités de transmission basée sur la concurrence (CTU), et les antennes correspondant à au moins deux CTU des deux CTU ou plus étant différentes; le terme CTU désigne une ressource de transmission combinant l'heure, la fréquence, et le domaine de codage, ou une ressource de transmission combinant l'heure, la fréquence et une fréquence pilote, ou une ressource de transmission combinant l'heure, la fréquence, le domaine de codage, et la fréquence pilote; déterminer les informations d'indication de ressources de la CTU utilisée par le dispositif terminal pour exécuter une transmission redondante multi-antenne; envoyer un premier message contenant lesdites informations d'indication de ressource. Le dispositif terminal est apte à transmettre des données de liaison montante au moyen d'au moins deux CTU, et les antennes correspondant aux dites au moins deux CTU des deux CTU ou plus sont différentes. L'invention permet ainsi d'améliorer la fiabilité et l'utilisation des ressources temps-fréquence d'une transmission de données.
PCT/CN2015/082139 2015-06-24 2015-06-24 Procédé et appareil pour la transmission de données de liaison montante WO2016206006A1 (fr)

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PCT/CN2015/082139 WO2016206006A1 (fr) 2015-06-24 2015-06-24 Procédé et appareil pour la transmission de données de liaison montante

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CN110611934A (zh) * 2018-06-15 2019-12-24 索尼公司 电子设备、通信方法和存储介质
CN110430554B (zh) * 2019-06-28 2023-11-07 维沃移动通信有限公司 业务传输方法及终端设备

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