WO2019219091A1 - Procédé et dispositif de communication sans fil - Google Patents

Procédé et dispositif de communication sans fil Download PDF

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Publication number
WO2019219091A1
WO2019219091A1 PCT/CN2019/087633 CN2019087633W WO2019219091A1 WO 2019219091 A1 WO2019219091 A1 WO 2019219091A1 CN 2019087633 W CN2019087633 W CN 2019087633W WO 2019219091 A1 WO2019219091 A1 WO 2019219091A1
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WIPO (PCT)
Prior art keywords
target data
mapping relationship
transmission
transmissions
dmrs
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PCT/CN2019/087633
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English (en)
Chinese (zh)
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WO2019219091A8 (fr
Inventor
唐海
Original Assignee
广东欧珀移动通信有限公司
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Priority to CN201980002801.2A priority Critical patent/CN110870343B/zh
Publication of WO2019219091A1 publication Critical patent/WO2019219091A1/fr
Publication of WO2019219091A8 publication Critical patent/WO2019219091A8/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control

Definitions

  • Embodiments of the present application relate to the field and, more particularly, to a wireless communication method and apparatus.
  • Ultra-reliable low latency communication (URLLC) service can be used, which is characterized by extreme Ultra-reliable (eg, 99.999%) transmission is achieved within a time delay (eg, 1 ms).
  • URLLC Ultra-reliable low latency communication
  • the embodiments of the present application provide a wireless communication method and device, which can reduce the complexity of a communication device while ensuring transmission performance.
  • the first aspect provides a line communication method, including: determining a mapping relationship between a redundancy version (RV) and a demodulation reference signal (DMRS); and performing target data according to the mapping relationship deal with.
  • RV redundancy version
  • DMRS demodulation reference signal
  • the mapping relationship between the RV and the DMRS is determined, and data processing is performed based on the mapping relationship, and the complexity of the communication device can be minimized while the transmission performance is guaranteed.
  • the mapping relationship there is at least one first RV and at least one first DMRS, wherein the at least one first RV is in one-to-one correspondence And the at least one first DMRS.
  • the at least one first RV is all the RVs in the mapping relationship
  • the at least one first DMRS is all DMRSs in the mapping relationship.
  • in the mapping relationship there is at least one second RV and multiple second DMRSs, where The second RV and the second DMRS are in a one-to-many relationship.
  • each second RV corresponds to Multiple second DMRSs.
  • each RV in the mapping relationship corresponds to multiple DMRSs.
  • the second RV is RV0.
  • a plurality of third RVs and at least one third DMRS are present, where The third RV and the third DMRS have a many-to-one relationship.
  • each DMRS in the mapping relationship corresponds to multiple RVs.
  • the processing the target data based on the mapping relationship includes:
  • the target data is processed based on the RV of the current secondary transmission of the target data.
  • the method is used for multiple transmissions of the target data.
  • the method further includes:
  • the target data is processed based on the determined number of transmissions or the transmission start point.
  • determining, by the current secondary transmission DMRS of the target data, a current secondary transmission of the target data The corresponding number of transmissions or the transmission starting point of the target data, including:
  • the number of transmissions or the transmission starting point is determined based on the DMRS of the current secondary transmission of the target data and the RV of the current secondary transmission of the target data.
  • the method is implemented by a terminal
  • the processing the target data based on the mapping relationship includes:
  • the method is implemented by a network device
  • the processing the target data based on the mapping relationship includes:
  • the target data is processed to acquire the target data based on the mapping relationship.
  • a wireless communication method including: determining a mapping relationship between a redundancy version RV and a number of transmissions of data; and processing the target data based on the mapping relationship.
  • the target data is processed based on the mapping relationship.
  • the mapping relationship between the RV and the number of transmissions is determined, and data processing is performed based on the mapping relationship, and the complexity of the communication device can be minimized while the transmission performance is guaranteed.
  • the mapping relationship there is at least one first RV and at least one first transmission number, wherein the at least one first RV and the The at least one first transmission number is a one-to-one correspondence.
  • the at least one first RV is all RVs in the mapping relationship
  • the at least one first transmission number is the total number of transmissions in the mapping relationship.
  • in another possible implementation manner of the second aspect in the mapping relationship, there is at least one second RV and multiple second transmission times, where The second RV is in a one-to-many relationship with the second number of transmissions.
  • each second RV corresponds to Multiple second transmission times.
  • the RV in the mapping relationship is the second RV.
  • in another possible implementation manner of the second aspect in another possible implementation manner of the second aspect, there are multiple third RVs and at least one third transmission number, where The relationship between the third RV and the third transmission number is a many-to-one relationship.
  • each of the number of transmissions in the mapping relationship corresponds to multiple RVs.
  • the processing the target data based on the mapping relationship includes:
  • the target data is processed based on the RV of the current secondary transmission of the target data.
  • the method when the determined RV is multiple, the method further includes:
  • the method further includes:
  • the RV is obtained based on blind detection, and user information is determined.
  • the processing the target data based on the mapping relationship includes:
  • the target data is processed based on the number of transmissions of the current secondary transmission or the transmission starting point of the target data.
  • the method is used for multiple transmissions of the target data.
  • the method is implemented by a terminal
  • the processing the target data based on the mapping relationship includes:
  • the method is implemented by a network device
  • the processing the target data based on the mapping relationship includes:
  • the target data is processed to acquire the target data based on the mapping relationship.
  • a wireless communication method comprising: determining a number of transmissions of a target data and/or a transmission start point based on at least one of a resource location occupied by the target data, a corresponding DMRS, and an RV; The target data is processed by the number of transmissions and/or the transmission start point.
  • the determining, according to the resource location occupied by the target data, the at least one of the corresponding DMRS and the RV, determining the number of transmissions of the target data and/or the transmission starting point include:
  • the number of transmissions of the target data and/or the transmission starting point is determined based on the resource location occupied by the target data, the corresponding DMRS and the RV.
  • the method is implemented by a terminal
  • the processing the target data based on the number of transmissions and/or the transmission start point including:
  • the target data is processed based on the number of transmissions and/or a transmission start point to transmit the target data to a network device.
  • the method is implemented by a network device
  • the processing the target data based on the number of transmissions and/or the transmission start point including:
  • the target data is processed based on the number of transmissions and/or a transmission start point to acquire the target data.
  • a wireless communication device for performing any of the methods described above.
  • the wireless communication device includes functional modules for performing any of the methods described above.
  • a wireless communication device comprising a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with one another via internal connection paths to communicate control and/or data signals such that the wireless communication device performs any of the methods described above.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing the above method.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform any of the methods described above.
  • a chip is provided for implementing any of the above aspects or any of the implementations thereof.
  • the chip includes a processor for calling and running a computer program from the memory such that the device on which the chip is mounted performs any of the methods described above.
  • a computer program which, when run on a computer, causes the computer to perform any of the methods described above.
  • FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a method of wireless communication in accordance with an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a wireless communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a method of wireless communication in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a DMRS and a data transmission starting point according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a DMRS and a data transmission starting point according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a DMRS and a data transmission starting point according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a chip in accordance with an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication system in accordance with an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • NR New Radio
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a functional handheld device a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, or the like.
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • the method may be implemented by a terminal device or by a network device.
  • the method 200 includes at least some of the following.
  • a mapping relationship between the redundancy version RV and the DMRS is determined.
  • the mapping relationship may indicate a correspondence between at least one RV and at least one DMRS.
  • One RV may correspond to one DMRS or multiple DMRSs, and the DMRSs corresponding to the RVs may all be the same, may be partially the same, or may be completely different.
  • the number of DRMS corresponding to each RV may be the same or different.
  • one DMRS may correspond to one RV or multiple RVs, and the RVs corresponding to the respective DMRSs may be identical, partially identical, or completely different.
  • the number of RVs corresponding to each DMRS may be the same or different.
  • the mapping relationship when the method is implemented by the terminal device, the mapping relationship may be preset on the terminal device, for example, may be preset by a factory, or may be preset by a network device. Set.
  • the mapping relationship when the method is implemented by the network device, the mapping relationship may be preset on the network device, for example, may be preset by the factory.
  • the target data is processed based on the mapping relationship.
  • the mapping there is at least one first RV and at least one first DMRS, where the at least one first RV corresponds to the at least one first DMRS.
  • the at least one first RV is all RVs in the mapping relationship; and the at least one first DMRS is all DMRSs in the mapping relationship.
  • all RVs have a one-to-one relationship with all DMRSs.
  • the RV can be directly identified by the DMRS currently transmitted, and the RV blind detection can be avoided.
  • multiple RVs can be used to obtain multiple RV combined gains.
  • the mapping there are at least one second RV and multiple second DMRSs, where the second RV and the second DMRS are one-to-many relationships. .
  • each second RV corresponds to multiple second DMRSs.
  • the previous plurality of DMRSs may correspond to one RV, for example, RV0; the subsequent multiple DMRSs may correspond to another one or more RVs.
  • RV0 is used in the previous transmissions to facilitate self-test.
  • the use of other RVs in the next few transmissions is beneficial to obtain the RV combining gain.
  • This design makes use of the law that the probability of the user is not detected decreases as the number of transmissions increases.
  • the self-test and RV combining gains are balanced. At the same time, it is bound to DMRS, which reduces the blind detection of RV.
  • each RV in the mapping relationship corresponds to multiple DMRSs.
  • the first RV and the second RV may exist at the same time, and the first DMRS and the second DMRS may also exist at the same time. That is, there is a part of the RV, which can correspond to the DMRS one by one, and another part of the RV, which is a one-to-many relationship with the DMRS.
  • the second RV is RV0.
  • RV0 is used to indicate that the currently transmitted redundant bit is the first segment of the bit.
  • the RV is fixed, especially RV0, which facilitates self-detection of data if no previous transmission is detected.
  • mapping there are multiple third RVs and at least one third DMRS in the mapping relationship, where the third RV and the third DMRS are in a many-to-one relationship. .
  • RVs there are some RVs, and a plurality of RVs may correspond to one DMRS.
  • each DMRS in the mapping relationship corresponds to multiple RVs.
  • the second RV and the third RV may exist at the same time, and the second DMRS and the third DMRS may also exist at the same time. That is, there is a part of the RV and a part of the DMRS, which may have a one-to-many relationship, and another part of the RV and another part of the DMRS, which have a many-to-one relationship.
  • the first, second, and third RVs may exist at the same time, and the first, second, and third DMRSs may also exist at the same time. That is, there is a part of the RV and a part of the DMRS, which may be in a one-to-one relationship, there is another part of the RV and another part of the DMRS, which may have a one-to-many relationship, and there is another part of the RV and another part DMRS, there is a many-to-one relationship between them.
  • the processing, by using the mapping relationship, the target data includes:
  • the target data is processed based on the RV of the current secondary transmission of the target data.
  • the multiple RVs may be blindly detected, that is, the blind detection may be performed based on the multiple RVs.
  • the DMRS of the current secondary transmission of the target data may also be determined based on the RV of the current secondary transmission of the target data and the mapping relationship, and the target data is processed based on the DMRS.
  • the method is used for multiple transmissions of the target data.
  • the method further includes:
  • the target data is processed based on the determined number of transmissions or the transmission start point.
  • the number of transmissions corresponding to the current secondary transmission of the target data or the transmission starting point of the target data may be determined based on multiple implementation manners, which will be specifically described below with reference to FIG. 5-7. Then describe.
  • the number of transmissions corresponding to the current secondary transmission mentioned above may refer to the first transmission of the current target data.
  • the transmission start point of the target data mentioned above may refer to where the first transmission of the target data is transmitted.
  • determining, according to the current secondary transmission DMRS of the target data, the number of transmissions corresponding to the current secondary transmission of the target data or the transmission starting point of the target data including:
  • the number of transmissions or the transmission starting point is determined based on the DMRS of the current secondary transmission of the target data and the RV of the current secondary transmission of the target data.
  • the RV of the current sub-transmission of the target data may be further combined to determine the number of transmissions or the transmission starting point.
  • the DMRS determines the number of transmissions based on the RV.
  • the number of transmissions is determined jointly by DRMS and RV, and there is a correspondence between RV and DMRS.
  • the number of blind detections of RV can be reduced under the determined total number of transmissions.
  • the method is implemented by a terminal, and the terminal may perform processing on the target data to send the target data to a network device according to the mapping relationship.
  • the method is implemented by a network device, and the network device may perform processing of the target data to acquire the target data based on the mapping relationship.
  • the mapping relationship between the RV and the DMRS is determined, and data processing is performed based on the mapping relationship, and the complexity of the communication device can be minimized while the transmission performance is guaranteed.
  • FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.
  • the method 300 includes at least a portion of the following.
  • a mapping relationship between the RV and the number of transmissions of data is determined. Among them, the number of transmissions is used to indicate that it is the first transmission.
  • the mapping relationship may indicate a correspondence between at least one RV and at least one transmission number.
  • the RV may correspond to one transmission number or multiple transmission times, and the number of transmissions corresponding to each RV may be the same, partially the same, or completely different.
  • the number of transmission times corresponding to each RV may be the same or different.
  • the number of transmissions may correspond to one RV or multiple RVs, and the RVs corresponding to the number of transmissions may be identical, partially identical, or completely different.
  • the number of RVs corresponding to each transmission number may be the same or different.
  • the mapping relationship when the method is implemented by the terminal device, the mapping relationship may be preset on the terminal device, for example, may be preset by a factory, or may be preset by a network device. Set.
  • the mapping relationship when the method is implemented by the network device, the mapping relationship may be preset on the network device, for example, may be preset by the factory.
  • the target data is processed based on the mapping relationship.
  • mapping there is at least one first RV and at least one first transmission number, wherein the at least one first RV and the at least one first transmission number For a one-to-one relationship.
  • the at least one first RV is all RVs in the mapping relationship; and the at least one first transmission number is all transmission times in the mapping relationship.
  • the number of transmissions can be determined by blindly detecting the RV.
  • RV blind detection can be avoided.
  • the mapping there are at least one second RV and multiple second transmission times, where the second RV and the second transmission number are one-to-many relationship.
  • the position of the specific number of transmissions can be obtained and the RV blind detection range is reduced.
  • each second RV corresponds to multiple second transmission times.
  • RV0 is used in the previous transmissions to facilitate self-test.
  • the use of other RVs in the next few transmissions is beneficial to obtain the RV combining gain.
  • This design makes use of the fact that as the number of transmissions increases, the probability that the probability of detection is not detected by the user balances the self-detection and RV combining gain.
  • the RV in the mapping relationship is the second RV.
  • it can be RV0.
  • the first RV and the second RV may exist at the same time, and the first transmission times and the second transmission times may also exist simultaneously. That is, there is a part of the RV, which can correspond to the number of transmissions one by one, and another part of the RV, which is a one-to-many relationship with the number of transmissions.
  • mapping there are multiple third RVs and at least one third transmission number in the mapping relationship, where the third RV and the third transmission number are in a many-to-one relationship.
  • each transmission number in the mapping relationship corresponds to multiple RVs.
  • RVs there are some RVs, and a plurality of RVs may correspond to one transmission number.
  • the second RV and the third RV may exist at the same time, and the second transmission times and the third transmission times may also exist simultaneously. That is, there are a part of the RV and a part of the number of transmissions, which may be a one-to-many relationship, and there is another part of the RV and another part of the number of transmissions, and there is a many-to-one relationship between them.
  • the first, second, and third RVs may exist at the same time, and the first, second, and third transmission times may also exist simultaneously. That is, there is a part of the RV and a part of the number of transmissions, which may be a one-to-one relationship between them, there is another part of the RV and another part of the number of transmissions, which may be a one-to-many relationship, and there is another part of the RV and A part of the number of transmissions, there is a many-to-one relationship between them.
  • the processing of the target data is performed based on the mapping relationship, including:
  • the processing of the target data is performed based on the RV of the current secondary transmission of the target data.
  • the method when the determined RV is multiple, the method further includes:
  • the method further includes:
  • the RV is obtained based on blind detection, and user information is determined. For example, it can be a user number or the like.
  • the processing of the target data is performed based on the mapping relationship, including:
  • the processing of the target data is performed based on the number of transmissions of the current secondary transmission or the transmission starting point of the target data.
  • the method is used for multiple transmissions of the target data.
  • the method is implemented by a terminal
  • the processing of the target data is performed based on the mapping relationship, including:
  • the method is implemented by a network device
  • the processing of the target data is performed based on the mapping relationship, including:
  • the mapping relationship between the RV and the number of transmissions is determined, and data processing is performed based on the mapping relationship, and the complexity of the communication device can be minimized while the transmission performance is guaranteed.
  • FIG. 4 is a schematic flowchart of a wireless communication method 400 according to an embodiment of the present application.
  • the method 400 includes at least a portion of the following.
  • a number of transmissions of the target data and/or a transmission origin is determined based on at least one of a resource location occupied by the target data, a corresponding DMRS, and an RV.
  • the resources mentioned in the embodiments of the present application may include at least one of a time domain, a frequency domain, and a code domain resource.
  • the target data is processed based on the number of transmissions and/or the starting point of transmission.
  • determining the number of transmissions of the target data and/or the transmission starting point based on at least one of a resource location occupied by the target data, a corresponding DMRS, and an RV may be the following implementation manner.
  • the number of transmissions of the target data and/or the transmission start point is determined based on the resource location occupied by the target data and the corresponding DMRS.
  • both the frequency diversity gain and the indication transmission secondary transmission and/or the transmission starting point can be obtained.
  • the number of transmissions of the target data and/or the transmission origin is determined based on the DMRS and RV corresponding to the target data.
  • the number of transmissions and/or the transmission starting point when the number of transmissions and/or the transmission starting point is determined by using the RV and combining the DMRS, the number of transmissions and/or the transmission starting point can be identified under a limited number of RV blind detection times.
  • the number of transmissions of the target data and/or the transmission origin is determined based on the resource location and RV occupied by the target data.
  • the transmission secondary transmission can be identified under a limited number of RV blind detection times.
  • both the frequency diversity gain and the indication transmission sub-transmission can be obtained.
  • the number of transmissions of the target data and/or the transmission start point is determined based on the resource location occupied by the target data, the corresponding DMRS, and the RV.
  • the limited number of RV blind detections identify the transmission secondary.
  • both the frequency diversity gain and the indication transmission sub-transmission can be obtained.
  • the information consisting of the resource location, the RV, and the DMRS may be one-to-one corresponding to the number of transmissions; or the information consisting of at least two factors of the resource location, the RV, and the DMRS.
  • the method is implemented by a terminal
  • the processing of the target data based on the number of transmissions and/or the transmission start point includes:
  • Processing of the target data is performed based on the number of transmissions and/or a transmission start point to transmit the target data to a network device.
  • the method is implemented by a network device
  • the processing of the target data based on the number of transmissions and/or the transmission start point includes:
  • Processing of the target data is performed based on the number of transmissions and/or a transmission start point to acquire the target data.
  • the LTE system introduces a URLLC service that is characterized by ultra-high reliability (eg, 99.999%) transmission within an extreme delay (eg, 1 ms).
  • ultra-high reliability eg, 99.999%
  • extreme delay eg, 1 ms
  • X1, X2, X3 and X4 in Fig. 5-7 represent DMRS
  • the data transmission of the underlined DMRS is the first data transmission, that is, the transmission starting point of the data transmission in the case of multiple data transmission.
  • the DMRS has a one-to-one correspondence with the number of transmissions.
  • X1, X2, X3, and X4 are four types of DMRS transmissions, and the transmitted DMRS indicates the current transmission of the first transmission belonging to the data.
  • Mode B Two DMRSs (X1, X2) are used for the first transmission and the subsequent transmission, respectively. As shown in Fig. 6, the starting position of the data, that is, the starting position of the first transmission, is determined by X1.
  • the DMRS combination corresponds to the transmission starting point, and the starting position is determined by the DMRS combination, that is, the starting position of the first transmission, specifically, the combination of X1 and X1, the combination of X1 and X2, and the combination of X2 and X1.
  • the combination of X2 and X2 represents four starting positions, for example, as shown in FIG. Wherein, the total number of data transmissions can be determined.
  • Method 1 The RV corresponds to the DMRS one by one, for example, as shown in Table 1.
  • the corresponding RVs may be as shown in Table 2.
  • the RV version can be directly identified by the DMRS, and RV blind detection can be avoided.
  • multiple RV versions can achieve multiple RV combined gains.
  • the RV blind detection may refer to acquiring data by using a possible RV.
  • RV and DMRS are one-to-many, for example, as shown in Table 3 and Table 5.
  • the corresponding RVs may be as shown in Table 4.
  • the RV is fixed, especially RV0, which facilitates self-detection of data if no previous transmission is detected.
  • the corresponding RVs may be as shown in Table 6.
  • RV0 is used in the previous transmissions to facilitate self-test.
  • the use of other RVs in the next few transmissions is beneficial to obtain the RV combining gain.
  • This design utilizes the law that the probability of the user is not detected decreases as the number of transmissions increases.
  • the self-test and RV combining gains are balanced. Simultaneously bind to DMRS, reducing blind detection of RV
  • RV and DMRS are many-to-one, for example, as shown in Table 7.
  • the corresponding RVs may be as shown in Table 8.
  • the DMRS determines the number of transmissions based on the RV.
  • the number of transmissions is determined jointly by DRMS and RV, and there is a correspondence between RV and DMRS.
  • the number of blind detections of RV can be reduced under the determined total number of transmissions.
  • Method 1 The RV corresponds to the number of transmissions, for example, as shown in Table 9 below.
  • the number of transmissions can be determined. Once the transmission secondary is determined, RV blind detection can be avoided.
  • Mode 2 The RV is one-to-one with the number of transmissions, for example, as shown in Tables 10 and 11 below.
  • the position of the specific number of transmissions can be obtained and the RV blind detection range is reduced.
  • the position of a specific number of transmissions can be obtained.
  • the RV blind detection range is reduced.
  • Mode 3 The number of RVs and the number of transmissions are many, for example, as shown in Table 12 below.
  • the RV can be obtained by blind detection, and other information such as a user number can be obtained.
  • Table 13 and Table 14 may respectively correspond to the number of transmissions of two different user configurations and RV.
  • the corresponding relationship between the RV and the DMRS may be configured for the network device.
  • the correspondence between the RV and the number of transmissions corresponding to each user may be configured. Is a one-to-many relationship (for example, Table 13), or a one-to-one relationship (for example, Table 14).
  • the number of transmissions is determined by any one, two or three combinations of resource locations (time domain locations), DMRS, and RV versions. Wherein, in the case that the number of transmissions is not determined only according to the DMRS, the problem of insufficient DMRS resources can be solved.
  • Mode 1 The frequency domain location is combined with the DMRS, for example, as shown in Table 15 below.
  • both the frequency diversity gain and the indication transmission secondary transmission can be obtained.
  • RV is combined with DMRS, for example, as shown in Table 16 below.
  • the transmission secondary transmission can be identified under a limited number of RV blind detections.
  • Mode 3 The RV is combined with the frequency domain, for example, as shown in Table 17 below.
  • the transmission secondary transmission can be identified under a limited number of RV blind detections.
  • both the frequency diversity gain and the indication transmission sub-transmission can be obtained.
  • Mode 4 The RV is combined with the frequency domain, for example, as shown in Table 18 below.
  • the transmission secondary transmission is identified.
  • both the frequency diversity gain and the indication transmission sub-transmission can be obtained.
  • the at least two factors of the frequency domain location, the RV, and the DMRS may collectively correspond to A1, A2, A3, and A4 in FIG. 5-7.
  • RV takes a value of 0 or 1
  • RV can take other values, such as 2, or 3.
  • RV can be RV0 and RV3 in the presence of two selectable values, that is, RV1 mentioned in the above example can be replaced with RV3.
  • the number of transmissions A1, A2, A3, and A4 may be four times in total, or may be other times, and the value of the number of transmissions may be greater than or equal to zero.
  • the available DMRS sequence may be other numbers, at least greater than or equal to zero.
  • FIG. 8 is a schematic block diagram of a communication device 600 in accordance with an embodiment of the present application.
  • the communication device 600 can include a determination unit 610 and a processing unit 620.
  • the determining unit is configured to determine the foregoing mapping relationship, or determine the number of transmissions of the target data and/or the transmission starting point based on at least one of a frequency domain location occupied by the target data, a corresponding DMRS, and an RV, where the processing unit is configured to: Handle other operations.
  • the communication device 600 can perform the foregoing wireless methods 200, 300, and 400.
  • the communication device 600 can perform the foregoing wireless methods 200, 300, and 400.
  • no further details are provided herein.
  • FIG. 9 is a schematic structural diagram of a system chip 700 according to an embodiment of the present application.
  • the system chip 700 of FIG. 9 includes an input interface 701, an output interface 702, the processor 703, and a memory 704 that can be connected by an internal communication connection line.
  • the processor 703 is configured to execute code in the memory 704.
  • the processor 703 when the code is executed, the processor 703 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 703 when the code is executed, the processor 703 implements a method performed by a terminal in a method embodiment. For the sake of brevity, it will not be repeated here.
  • FIG. 10 is a schematic block diagram of a communication device 800 in accordance with an embodiment of the present application.
  • the communication device 800 includes a processor 810 and a memory 820.
  • the memory 820 can store program code, and the processor 810 can execute the program code stored in the memory 820.
  • the communication device 800 can include a transceiver 830 that can control the transceiver 830 to communicate externally.
  • the processor 810 can call the program code stored in the memory 820 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 810 can call the program code stored in the memory 820 to perform the corresponding operations of the network device in the method embodiment.
  • the processor 810 can call the program code stored in the memory 820 to perform the corresponding operations of the terminal in the method embodiment.
  • the processor 810 can call the program code stored in the memory 820 to perform the corresponding operations of the terminal in the method embodiment.
  • FIG. 11 is a schematic block diagram of a communication system 900 in accordance with an embodiment of the present application.
  • the communication system 900 includes a terminal 910 and a network device 920.
  • the terminal 910 can be used to implement the corresponding functions implemented by the terminal in the foregoing method
  • the network device 920 can be used to implement the corresponding functions implemented by the network device in the foregoing method, for brevity, and details are not described herein.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding 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, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • 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.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • 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 application 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.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present application 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 application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé et un dispositif de communication sans fil, et peuvent réduire au minimum la complexité du dispositif de communication tout en garantissant la performance de transmission. Le procédé consiste à : déterminer une relation de mappage entre une version de redondance (RV) et un signal de référence de démodulation (DMRS); et traiter des données cibles sur la base de la relation de mappage.
PCT/CN2019/087633 2018-05-18 2019-05-20 Procédé et dispositif de communication sans fil WO2019219091A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399651A (zh) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 一种业务数据在hsdpa中传输的方法、装置及系统
CN101656602A (zh) * 2008-08-18 2010-02-24 华为技术有限公司 设置高速共享控制信道的方法与装置
WO2017152288A1 (fr) * 2016-03-11 2017-09-14 Sierra Wireless, Inc. Procédé et système d'estimation de décalage de fréquence porteuse dans une communication de dispositif mtc lte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399651A (zh) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 一种业务数据在hsdpa中传输的方法、装置及系统
CN101656602A (zh) * 2008-08-18 2010-02-24 华为技术有限公司 设置高速共享控制信道的方法与装置
WO2017152288A1 (fr) * 2016-03-11 2017-09-14 Sierra Wireless, Inc. Procédé et système d'estimation de décalage de fréquence porteuse dans une communication de dispositif mtc lte

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