WO2021051325A1 - Procédé et dispositif de traitement d'informations de commande de liaison montante, appareil de communication et support de stockage - Google Patents

Procédé et dispositif de traitement d'informations de commande de liaison montante, appareil de communication et support de stockage Download PDF

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Publication number
WO2021051325A1
WO2021051325A1 PCT/CN2019/106524 CN2019106524W WO2021051325A1 WO 2021051325 A1 WO2021051325 A1 WO 2021051325A1 CN 2019106524 W CN2019106524 W CN 2019106524W WO 2021051325 A1 WO2021051325 A1 WO 2021051325A1
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uci
rbs
code rate
priority
res
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PCT/CN2019/106524
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English (en)
Chinese (zh)
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牟勤
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北京小米移动软件有限公司
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Priority to PCT/CN2019/106524 priority Critical patent/WO2021051325A1/fr
Priority to CN201980002117.4A priority patent/CN112823485B/zh
Publication of WO2021051325A1 publication Critical patent/WO2021051325A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the embodiments of the present application relate to the field of wireless communication technology but are not limited to the field of wireless communication technology, and in particular, to an uplink control information processing method and device, communication equipment, and storage medium.
  • the frequency band of wireless communication can be divided into authorized frequency band and unlicensed frequency band. Communication on unlicensed frequency bands can be based on competition, but in some cases, communication on unlicensed frequency bands is also based on scheduling.
  • the physical uplink control channel (PUCCH) on the unlicensed frequency band is used for resource scheduling for uplink transmission
  • the physical uplink shared channel (PUSCH) on the unlicensed frequency band is used for data transmission.
  • the embodiment of the application discloses a method and device for processing uplink control information, a communication device, and a storage medium.
  • the first aspect of the embodiments of the present application provides an uplink control information processing method, including:
  • the first code rate determine the number n of resource blocks RB required to transmit the uplink control information UCI on the unlicensed frequency band, where the first code rate is the maximum code rate of the physical uplink control channel PUCCH for data transmission; Said n is a positive integer;
  • the N RBs are used to send the UCI on the PUCCH of the unlicensed frequency band.
  • the using the N RBs to send the UCI includes:
  • the N RBs are used to transmit the UCI with different priorities at the same code rate.
  • the using the N RBs to send the UCI with different priorities at different code rates includes:
  • the first part of the N RBs Use the first part of the N RBs to use the first code rate to transmit the UCI of the first priority, and use the second part of the N RBs to use the second code rate to transmit the UCI of the second priority
  • the first priority is lower than the second priority
  • the first code rate is greater than the second code rate
  • the method further includes:
  • the total number of REs that can be used for the UCI transmission included in the N RBs and the x determine the number y of REs encoding the second priority UCI, where y is a positive integer; y REs are the second part of the N RBs;
  • the second coded bits are carried on the second part.
  • the method further includes:
  • n When the n is greater than the N, use the n RBs to send the UCI on the PUCCH of the unlicensed frequency band.
  • the second aspect of the implementation of this application provides an uplink control information processing method, which includes:
  • the first code rate determine the number n of resource blocks RB required to transmit the uplink control information UCI on the unlicensed frequency band, where the first code rate is the maximum code rate of the physical uplink control channel PUCCH for data transmission; Said n is a positive integer;
  • the UCI is received on the N RBs on the PUCCH of the unlicensed frequency band.
  • the method further includes:
  • the decode the second coded bits on the y REs Based on the number of source bits of the UCI of the second priority, decode the second coded bits on the y REs, where the total number of REs that can be used for the UCI transmission contained in the N RBs and the The difference of x, the y is a positive integer.
  • the method further includes:
  • the UCI is received on n RBs on the PUCCH of the unlicensed frequency band.
  • a third aspect of the embodiments of the present application provides an uplink control information processing device, which includes:
  • the first determining module is configured to determine the number n of resource blocks RB required to transmit uplink control information UCI on the unlicensed frequency band according to the first code rate, where the first code rate is the physical uplink control channel PUCCH.
  • the maximum code rate of data transmission; the n is a positive integer;
  • the sending module is configured to use the N RBs to send the UCI on the PUCCH of the unlicensed frequency band when the n is less than or equal to the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement .
  • the sending module is configured to use the N RBs to send the UCIs of different priorities at different code rates; or to use the N RBs to send the UCIs of different priorities at the same code rate. UCI.
  • the sending module is configured to use the first part of the N RBs to transmit the UCI of the first priority at the first code rate, and use the second part of the N RBs.
  • Part of the UCI of the second priority is transmitted using a second code rate, wherein the first priority is lower than the second priority, and the first code rate is greater than the second code rate.
  • the device further includes:
  • a first encoding module configured to use the first code rate to encode the source bits of the UCI of the first priority to obtain the first encoded bits
  • the second determining module is configured to determine the number x of resource units RE occupied by the first coded bit, where the x is a positive integer; the x REs are the first part of the N RBs;
  • the third determining module is configured to determine the number y of REs encoding the second priority UCI according to the total number of REs contained in the N RBs that can be used for UCI transmission and the x, so The y is a positive integer; the y REs are the second part of the N RBs;
  • the third encoding module is configured to encode the second priority UCI at a second code rate based on the number of source bits of the second priority UCI to obtain second encoded bits occupying the y REs;
  • a first bearing module configured to bear the first coded bits on the first part
  • the second bearing module is configured to bear the second coded bits on the second part.
  • the sending module is further configured to send the UCI using the n RBs on the PUCCH of the unlicensed frequency band when the n is greater than the N.
  • a fourth aspect of the embodiments of the present application provides an uplink control information processing device, which includes:
  • the fourth determining module is configured to determine the number n of resource blocks RB required to transmit uplink control information UCI on the unlicensed frequency band according to the first code rate, where the first code rate is the physical uplink control channel PUCCH.
  • the maximum code rate of data transmission; the n is a positive integer;
  • the receiving module is configured to receive the UCI on the N RBs on the PUCCH of the unlicensed frequency band when the n is less than or equal to the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement.
  • the device further includes:
  • the fifth determining module is configured to determine the number x of REs occupied by the UCI of the first priority when determining the UCI with different priorities according to the scheduling information, and use the first code rate to decode x In the RE, the x is a positive integer;
  • the decoding module is configured to decode the x first coded bits on the RE based on the number of source bits of the UCI of the first priority; decode y bits based on the number of source bits of the UCI of the second priority The second coded bit on the RE, where the y is the difference between the total number of REs that can be used for the UCI transmission included in the N RBs and the x, and the y is a positive integer.
  • the receiving module is further configured to use the n RBs on the PUCCH of the unlicensed frequency band to receive the UCI when the n is greater than the N.
  • a fifth aspect of the embodiments of the present application provides a communication device, including:
  • the processor is respectively connected to the transceiver and the memory, and is configured to control the transceiver's wireless signal transmission and reception by executing computer-executable instructions stored on the memory, and implement any of the first aspect or the second aspect described above.
  • the uplink control information processing method provided by the technical solution.
  • a sixth aspect of the present application provides a computer storage medium that stores computer-executable instructions, and the computer-executable instructions can be executed by a processor to implement any of the technical solutions provided in the first aspect or the second aspect.
  • the uplink control information processing method is not limited to:
  • the technical solution provided by the embodiment of this application first determines the number of RBs required to transmit UCI on the PUCCH on the unlicensed frequency band according to the maximum allowable code rate (that is, the first code rate) according to the first code rate.
  • the number is less than N that meets the occupancy requirement of the predetermined bandwidth
  • N RBs are used to send UCI directly.
  • N RBs are still used to send UCI to meet the occupancy requirements of the predetermined bandwidth.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for processing uplink control information according to an embodiment of the present application
  • 3A is a schematic flowchart of another method for processing uplink control information according to an embodiment of the present application.
  • 3B is a schematic flowchart of another method for processing uplink control information according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for processing uplink control information according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of an uplink control information processing apparatus provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another uplink control information processing apparatus provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a base station provided by an embodiment of the present application.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present application.
  • the wireless communication system is a communication system based on cellular mobile communication technology.
  • the wireless communication system may include several terminals 10 and several base stations 20.
  • the terminal 10 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 10 can communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal 10 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or "cellular" phone), and
  • the computer of the Internet of Things terminal for example, may be a fixed, portable, pocket-sized, handheld, built-in computer or vehicle-mounted device.
  • station For example, station (Station, STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user terminal (user equipment, terminal).
  • the terminal 10 may also be a device of an unmanned aerial vehicle.
  • the terminal 10 may also be an in-vehicle device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected to the trip computer.
  • the terminal 10 may also be a roadside device, for example, it may be a street lamp, a signal lamp, or other roadside device with a wireless communication function.
  • the base station 20 may be a network side device in a wireless communication system.
  • the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be the next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network).
  • the base station 20 may be an evolved base station (eNB) used in a 4G system.
  • the base station 20 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 20 adopts a centralized distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer protocol stack; distribution
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • the unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present application does not limit the specific implementation manner of the base station 20.
  • a wireless connection can be established between the base station 20 and the terminal 10 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on a 5G-based next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the terminals 10.
  • V2V vehicle to vehicle
  • V2I vehicle to Infrastructure
  • V2P vehicle to pedestrian
  • the above-mentioned wireless communication system may further include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an Evolved Packet Core (EPC) network. MME).
  • the network management device may also be other core network devices, such as Serving Gate Way (SGW), Public Data Network Gate Way (PGW), policy and charging rules function unit (Policy and Charging Rules Function, PCRF) or Home Subscriber Server (HSS), etc.
  • SGW Serving Gate Way
  • PGW Public Data Network Gate Way
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • this embodiment provides an uplink control information processing method, including:
  • S110 According to the first code rate, determine the number n of resource blocks RB required to transmit the uplink control information UCI on the unlicensed frequency band, where the first code rate is the maximum code rate of the physical uplink control channel PUCCH for data transmission; n Is a positive integer;
  • N RBs When n is less than or equal to the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement, use N RBs to send UCI on the PUCCH of the unlicensed frequency band.
  • the uplink control information processing method provided in this embodiment is applied to a terminal.
  • the terminal includes, but is not limited to: a human-borne terminal, a vehicle-mounted terminal, and a fixed Internet of Things terminal.
  • Human-borne terminals include communication devices carried or worn by the human body, such as mobile phones, tablet computers, or wearable devices.
  • Vehicle-mounted terminals may include various electronic devices located in private cars and vehicles.
  • Fixed IoT terminals may include, but are not limited to: various smart home devices. For example, smart access control equipment, smart air conditioners, etc.
  • the maximum bit rate for data transmission on PUCCH is used to determine the required bit rate according to the first bit rate (that is, the maximum bit rate for data transmission on PUCCH).
  • the number of RBs is used to determine the required bit rate according to the first bit rate (that is, the maximum bit rate for data transmission on PUCCH).
  • each spectrum resource occupation needs to meet a certain bandwidth requirement.
  • Occupied Channel Bandwidth (OCB) requirement of the signal sent by the sender within a certain period of time is: OCB requires the signal sent from a single sender to occupy at least 80% of the channel transmission, and The bandwidth of an unlicensed carrier is usually 20MHz.
  • each spectrum occupancy needs to meet the minimum requirement of 2MHz.
  • the number of RBs included in a 2MHz PUCCH is different.
  • the bandwidth of one RB is 180KHz, and a 2MHz PUCCH contains 12 RBs.
  • the bandwidth of one RB is 360KHz, and a 2MHz PUCCH contains 6 RBs.
  • the bandwidth of one RB is 720KHz, and one PUCCH contains 3 RBs.
  • the occupancy requirement of the predetermined bandwidth may satisfy 80% of 20 MHz, or may also be the bandwidth occupancy requirement of 2 MHz.
  • n is less than the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupancy requirement, it means that at this time, using n RBs to transmit UCI will not meet the occupancy requirement of at least the predetermined bandwidth in the relevant regulations, which leads to the related technology Incompatibility. Therefore, in the embodiment of the present application, if n is less than or equal to N, N RBs are used directly to send UCI.
  • the coded bits of UCI occupy N RBs.
  • the code rate of UCI is reduced, so that after the source bits of UCI are encoded at a low code rate, the generated coded bits can occupy N RBs.
  • the lower the coding rate the lower the probability that the UCI will be interfered during transmission and cause the receiving end to receive incorrect reception, which can improve the transmission accuracy and transmission reliability of UCI.
  • the UCI may include multiple types, and the multiple types of UCI may be set with different priorities according to different degrees of importance; or, according to the urgency of UCI transmission, different priorities may be set.
  • the higher the transmission urgency of UCI with higher priority the higher the requirement for UCI transmission reliability.
  • N RBs to send UCI includes:
  • S121 Use N RBs to transmit UCIs of different priorities with different code rates.
  • using N RBs to transmit UCI includes:
  • S122 Use N RBs to send UCIs of different priorities with the same code rate.
  • the UCI When the UCI is transmitted using N RBs included in the predetermined bandwidth defined by the occupancy requirement, if the currently transmitted UCI is transmitted at the maximum code rate, only N RBs or less are required. If n is less than N, if N RBs are used to transmit the UCI of each priority with the same code rate, it is obvious that all UCIs of the priority use a uniform code rate, and the same code rate must be lower than the maximum code for PUCCH for data transmission. Obviously, it satisfies the relevant regulations of the maximum code rate for PUCCH data, and has good compatibility with related technologies.
  • N RBs are used to transmit UCIs of different priorities with different code rates. Specifically, for example, using N RBs to transmit UCI with a higher priority at a lower code rate. That is, the priority of UCI is negatively related to the bit rate of transmission.
  • the priority of UCI may be multiple, for example, the priority of UCI may be 2 or more priorities.
  • the UCI transmitted by N RBs can be transmitted using a maximum of M code rates.
  • using N RBs to send UCIs of different priorities with different code rates includes:
  • the first part using N RBs uses the first bit rate to transmit the UCI of the first priority
  • the second bit rate of the second part of the N RBs is used to transmit the UCI of the second priority, where the first priority is lower than the second priority, and the first bit rate is greater than the second bit rate.
  • the second part is different from the first part, and the second part and the first part together form N RBs.
  • the UCI has two priorities, namely the first priority and the second priority, and the first priority is lower than the second priority. That is, the second priority is high priority, and the first priority is low priority.
  • UCI can include multiple types, specifically one or more of the following:
  • Hybrid Automatic Request Acknowledgement Hybrid Automatic Request Acknowledgement (Hybrid Automatic Request Acknowledgement, HARQ-ACK);
  • CSI Channel State Information
  • CSI can be divided into a first part (part 1) and a second part (part 2).
  • the priority of the CSI of the first part is higher than the priority of the second part.
  • the first part of HARQ-ACK, SR, and CSI may be considered to have a higher second priority, and the second part of CSI may be considered to have a lower first priority.
  • the sender and receiver can determine the number of RBs n required to transmit the UCI at the maximum code rate in the same manner.
  • the first part of the N RBs uses the first code rate to transmit the UCI of the first priority, and then the second part of the N RBs uses the second code rate to transmit the UCI of the second priority.
  • N Each RB will use UCI of two code rates. These two types of UCI will be coded separately.
  • the method further includes:
  • the total number of REs that can be used for the UCI transmission included in the N RBs and the x determine the number y of REs encoding the second priority UCI, where y is a positive integer; y REs are the second part of the N RBs;
  • the second coded bits are carried on the second part.
  • One RB includes multiple REs.
  • RE is a smaller resource unit than RB.
  • one RB occupies a predetermined subcarrier, and in the time domain, it occupies a time slot.
  • One RE is one subcarrier in frequency and occupies one symbol in the time domain.
  • one RB occupies 12 subcarriers, that is, the bandwidth of one RB is 180KHz, and when one slot contains 14 symbols, one RB contains 14*12 REs.
  • the first code rate is used to encode the source bits of the UCI of the first priority to obtain the first coded bit.
  • the number of bits of the first coded bit is higher than the number of bits contained in the previous RE.
  • the number of REs needed to be occupied by the first coding bit, and then the number of REs that can be used for UCI transmission contained in the N RBs is subtracted by x to obtain the number y of REs that can be used for UCI coding of the second priority.
  • y can be obtained by subtracting x from the total number of REs used for UCI transmission in the N RBs in the embodiment of the present application.
  • the source bit is the bit before encoding; the encoded bit is the bit after encoding.
  • the number of coded bits obtained after encoding is generally more than the number of source bits of the source bits.
  • n is less than or equal to N, and because the UCI of the first priority uses the maximum code rate, the code rate of the UCI of the second priority must be less than the first code rate. In this way, a lower code is used. UCI with higher rate coding priority.
  • the UCI of the first priority and the UCI of the second priority are coded separately, and the coded check bits are checked separately.
  • the check bit may be a cyclic redundancy code (CRC) coded check bit.
  • CRC cyclic redundancy code
  • the check bit may not be added.
  • the method further includes: when n is greater than N, sending UCI using n RBs on the PUCCH of the unlicensed frequency band.
  • the occupancy requirements of the predetermined bandwidth will be met first.
  • the n RBs of PUCCH on the unlicensed frequency band will be used to transmit UCI. .
  • n RBs are directly used to transmit UCI at the maximum code rate.
  • this embodiment provides an uplink control information processing method, including:
  • S210 According to the first code rate, determine the number n of resource blocks RB required to transmit the uplink control information UCI on the unlicensed frequency band, where the first code rate is the maximum code rate of the physical uplink control channel PUCCH for data transmission; n Is a positive integer;
  • n is less than or equal to the number N of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement, receive UCI on the N RBs on the PUCCH of the unlicensed frequency band.
  • the uplink control information processing method can be applied to the base station.
  • the base station will first estimate the number of RBs occupied by the UCI to be received based on the first bit rate n. If it is determined that n is less than N, it will automatically receive the UCI on the N RBs on the PDCCH of the unlicensed band. ; Instead of directly receiving the UCI on n RBs, it meets the occupancy requirements of the predetermined bandwidth on the unlicensed frequency band, and achieves good compatibility with related technologies.
  • n is greater than N, the UCI will be directly received on n RBs.
  • the method further includes:
  • the scheduling information of UCI includes, but is not limited to, the dynamic scheduling information of HARQ-ACK and the semi-persistent scheduling information of SR information and CSI.
  • the base station can determine which UCI currently needs to be received according to the scheduling information of the UCI, so as to determine the priority of the UCI.
  • the code rate of UCI is no longer the maximum code rate. If the priority of UCI is two or more than two, different parts of the N RBs use two code rates to transmit UCI. Therefore, in the embodiment of the present application, the number of REs x occupied by the UCI with the lower first priority in the UCI is first determined, and then according to the difference between the total number of N RBs and x, the number of REs is determined The number of REs used by the higher second priority UCI. Then, according to the number of source bits of the UCI of the second priority, and y, the UCI of the second priority can be decoded quickly.
  • Distinguishing the UCI of the first priority and the second priority and using different code rates for transmission can ensure the transmission reliability of the UCI of a higher priority.
  • n is greater than N, use n RBs to transmit UCI on the PUCCH of the unlicensed frequency band.
  • this embodiment provides an uplink control information processing device, including:
  • the first determining module 110 is configured to determine the number n of resource blocks RB required to transmit uplink control information UCI on the unlicensed frequency band according to the first code rate, where the first code rate is the physical uplink control channel PUCCH for data The maximum code rate of transmission; n is a positive integer;
  • the sending module 120 is configured to use N RBs to send UCI on the PUCCH of the unlicensed frequency band when n is less than or equal to the number of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement.
  • the first determining module 110 and the sending module 120 may be program modules. After the program module is executed by the processor, the number of required RBs can be confirmed, and N RBs are used to send UCI at the same time.
  • the first determining module 110 and the sending module 120 can be a combination of software and hardware; the combination of software and hardware includes, but is not limited to, various programmable arrays; and the programmable arrays include, but are not limited to, complex programmable arrays or on-site Programmable array.
  • the first determining module 110 and the sending module 120 may be pure hardware modules; the pure hardware modules include, but are not limited to, application specific integrated circuits.
  • the sending module 120 is configured to use N RBs to send UCIs of different priorities at different code rates; or to use N RBs to send UCIs of different priorities at the same code rate.
  • the sending module 120 is configured to use the first part of the N RBs to transmit the UCI of the first priority at the first code rate, and use the second part of the N RBs to transmit the UCI at the second code rate. Two-priority UCI, where the first priority is lower than the second priority, and the first bit rate is greater than the second bit rate.
  • the device further includes:
  • the first encoding module is configured to encode the source bits of the UCI of the first priority by using the first code rate to obtain the first encoded bits;
  • the second determining module is configured to determine the number x of resource units RE occupied by the first coded bit, where x is a positive integer; and x REs are the first part of the N RBs;
  • the third determining module is configured to determine the number of REs encoding the second priority UCI according to the total number of REs contained in the N RBs that can be used for UCI transmission and the number x of REs occupied by the first coded bit y, the y is a positive integer; y REs are the second part of N RBs;
  • the third encoding module is configured to encode the UCI of the second priority at the second code rate based on the number of source bits of the UCI of the second priority to obtain the second coded bits occupying y REs;
  • the first bearing module is configured to bear the first coded bits on the first part
  • the second bearing module is configured to bear the second coded bits on the second part.
  • UCI includes at least one of the following:
  • the sending module 120 is further configured to send UCI on n RBs on the PUCCH of the unlicensed frequency band when n is greater than N.
  • this embodiment provides an uplink control information processing device, including:
  • the fourth determining module 210 is configured to determine the number n of resource blocks RB required to transmit uplink control information UCI on the unlicensed frequency band according to the first code rate, where the first code rate is the physical uplink control channel PUCCH for data The maximum code rate of transmission; n is a positive integer;
  • the receiving module 220 is configured to receive UCI on N RBs on the PUCCH of the unlicensed frequency band when n is less than or equal to the number of RBs included in the predetermined bandwidth defined by the bandwidth occupation requirement.
  • the third determining module and the receiving module 220 may be program modules. After the program module is executed by the processor, the determination of the number of RBs required for UCI transmission and the reception of UCI can be realized.
  • the device further includes:
  • the fifth determining module is configured to determine the number of REs x occupied by the UCI of the first priority when determining the UCI with different priorities according to the scheduling information, and decode x REs at the first code rate, where x is a positive integer ;
  • the decoding module is configured to determine the number of REs occupied by the UCI of the first priority x when determining the UCI with different priorities according to the scheduling information of the UCI, and x is a positive integer; based on the source bits of the UCI of the first priority Number, decode the first coded bit on x REs; decode the second coded bit on y REs based on the number of UCI source bits of the second priority, where y is the N RBs that can be used for UCI transmission The difference between the total number of REs and x, y is a positive integer.
  • the receiving module 220 is further configured to use n RBs to receive UCI on the PUCCH of the unlicensed frequency band when n is greater than N.
  • the communication device includes: a transceiver, a memory, and a processor.
  • the transceiver can be used to interact with other devices.
  • the transceiver includes but is not limited to a transceiver antenna.
  • the memory may store computer-executable instructions; the processor is respectively connected to the transceiver and the memory to realize the uplink control information processing method provided by any of the foregoing technical solutions.
  • the number n of RBs required to transmit UCI is first calculated according to the maximum code rate.
  • the number N of RBs corresponding to the 2MHz bandwidth is 12, 6, and 3, respectively.
  • n is less than or equal to N, then use N RBs on the PUCCH of the unlicensed band to transmit UCI in the corresponding scenario; if n is greater than N, use non- The n RBs on the PUCCH on the licensed frequency band are used to transmit UCI.
  • the UCI information contains multiple types of uplink control information with different priorities, different control information can be transmitted at different bit rates.
  • the uplink control information of the priority draft needs to use a smaller bit rate for source bit transmission. Encoding, so that you can set a lower code rate for important uplink control information, thereby providing more reliable transmission.
  • This example provides a UCI processing method, in the case that the required number of RBs n calculated based on the maximum code rate is less than the number of RBs that meet the minimum 2MHz bandwidth requirement. Since the number of RBs used in actual transmission is more than the minimum number of RBs calculated according to the maximum allowable code rate, on average, the code rate for transmitting UCI is less than the maximum allowable code rate.
  • One of the most direct ways is to determine the code rate used for UCI transmission according to the number of RBs actually used for transmission. For each type of uplink control information (HARQ-ACK information, SR information, and CSI information) in the UCI information, the same code rate is used for transmission.
  • HARQ-ACK information For each type of uplink control information (HARQ-ACK information, SR information, and CSI information) in the UCI information, the same code rate is used for transmission.
  • the number of RBs in the frequency domain of a PUCCH resource of PUCCH format 2 is configured to 15 and the number of time domain symbols is 4, and each symbol can be used to carry PUCCH information subcarriers
  • the number is 9
  • the modulation method is QPSK, that is, the maximum allowed code rate configured with a modulation order of 2 is 0.08
  • the number of UCI payloads is 55 bits, of which HARQ-ACK information 4 bits, 1 bit for SR information, 14 bits for the first part of CSI, 25 bits for the second part of CSI, and 11 bits for CRC information.
  • the formula for determining the minimum number of RBs required to calculate UCI according to the maximum code rate can be as follows:
  • O ACK represents the number of coded bits of HARQ-ACK information
  • O SR represents the number of bits occupied by coded bits of SR information
  • O CSI represents the number of bits occupied by coded bits of CSI
  • O CRC represents CRC check information The number of bits occupied by the coded bits.
  • M RB,min is the minimum number of RBs that can carry all UCI information, that is, the minimum number of RBs required to carry UCI is calculated according to the maximum code rate.
  • the coded bits of the UCI information will be carried using the first 12 PUCCH resources of the PUCCH resource.
  • UCI contains HARQ-ACK information, SR information and CSI information
  • the first part of HARQ-ACK/SR and CSI can be transmitted at a lower code rate, because the importance of HARQ-ACK/SR and the first part of CSI is high
  • the first part of HARQ-ACK/SR/CSI can be coded separately from the second part of CSI.
  • the second part of the CSI it is directly transmitted according to the maximum allowed code rate of 0.08.
  • the number of resource elements (resource elements, RE) that the second part of the CSI needs to occupy is (The "11" bit in the numerator is the CRC check bit).
  • the "6" bit is the CRC check bit) is much smaller than the maximum allowed code rate configured by the base station. Therefore, HARQ-ACK or SR information or the first part of CSI can be transmitted with higher reliability.
  • the less important UCI is transmitted according to the maximum allowable code rate, and is separately CRC checked and coded. Therefore, the number of REs occupied by UCI with lower importance can be calculated according to the maximum code rate. Since we know the total number of REs used, we can calculate the remaining number of REs reserved for the more important UCI, and then we can encode the more important UCI information according to this number of REs, and transmit it The bit rate used is lower.
  • Fig. 7 shows a terminal according to an exemplary embodiment.
  • the terminal may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • the processing component 802 generally controls the overall operations of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support operations in the terminal 800. Examples of these data include instructions for any application or method operated on the terminal 800, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power supply component 806 provides power for various components of the terminal 800.
  • the power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal 800.
  • the multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the terminal 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 804 or transmitted via the communication component 816.
  • the audio component 810 further includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 814 includes one or more sensors for providing the terminal 800 with various status assessments.
  • the sensor component 814 can detect the open/close state of the terminal 800 and the relative positioning of components, such as the display and keypad of the terminal 800.
  • the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800. The presence or absence of contact with the terminal 800, the orientation or acceleration/deceleration of the terminal 800, and the temperature change of the terminal 800.
  • the sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices.
  • the terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the terminal 800 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, and the foregoing instructions may be executed by the processor 820 of the terminal 800 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and so on.
  • FIG. 8 is a schematic diagram of a base station.
  • the base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932, for storing instructions that can be executed by the processing component 922, such as application programs.
  • the application program stored in the memory 932 may include one or more modules each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to execute the PDCCH monitoring method shown in FIG. 4 and/or FIG. 5.
  • the base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to the network, and an input output (I/O) interface 958.
  • the base station 900 can operate based on an operating system stored in the memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, Free BSDTM or the like.

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un dispositif de traitement d'informations de commande de liaison montante, un appareil de communication et un support de stockage. Le procédé de traitement d'informations de commande de liaison montante comprend les étapes consistant à : en fonction d'un premier débit binaire, déterminer le nombre n de blocs de ressources (RB) requis pour transmettre des informations de commande de liaison montante (UCI) sur une bande de fréquences sans licence, le premier débit binaire étant le débit binaire maximal permettant d'exécuter une transmission de données d'un canal physique de commande de liaison montante (PUCCH) et n étant un entier positif ; et, si n est inférieur ou égal au nombre N de RB faisant partie d'une bande passante prédéterminée définie par une exigence d'occupation de bande passante, utiliser les N RB pour envoyer les UCI sur un PUCCH sur la bande de fréquences sans licence.
PCT/CN2019/106524 2019-09-18 2019-09-18 Procédé et dispositif de traitement d'informations de commande de liaison montante, appareil de communication et support de stockage WO2021051325A1 (fr)

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CN201980002117.4A CN112823485B (zh) 2019-09-18 2019-09-18 上行控制信息处理方法及装置、通信设备及存储介质

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