WO2020164131A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2020164131A1
WO2020164131A1 PCT/CN2019/075264 CN2019075264W WO2020164131A1 WO 2020164131 A1 WO2020164131 A1 WO 2020164131A1 CN 2019075264 W CN2019075264 W CN 2019075264W WO 2020164131 A1 WO2020164131 A1 WO 2020164131A1
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WIPO (PCT)
Prior art keywords
information
dci
field
downlink control
resource
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PCT/CN2019/075264
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English (en)
Chinese (zh)
Inventor
毕文平
余政
程型清
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980087869.5A priority Critical patent/CN113261365B/zh
Priority to PCT/CN2019/075264 priority patent/WO2020164131A1/fr
Publication of WO2020164131A1 publication Critical patent/WO2020164131A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.
  • DCI downlink control information
  • the base station needs to activate or deactivate the pre-configured resources and pass system messages (system information, SI) informs the terminal device that the pre-configured resource is in the activated or deactivated state.
  • SI system information
  • the base station informs the terminal device that the pre-configured resource is in the activated or deactivated state through the SI message
  • the large amount of data in the SI message results in high power consumption of the terminal device in the process of updating the SI.
  • the present application provides a communication method and device, which can reduce the power consumption of a first device and can improve resource utilization.
  • an embodiment of the present application provides a communication method, including:
  • the first device receives the first information sent by the second device; the first information is included in the downlink control information DCI, and/or the first information is included in the data scheduled by the downlink control information DCI;
  • the first information includes first indication information, and the first device determines whether the first resource can be used to transmit information according to the first indication information; and/or, the first information includes second indication information, The first device determines whether the second device successfully receives the second information according to the second indication information, where the second information includes information transmitted on the second resource.
  • the first resource and the second resource are both pre-configured resources.
  • the preconfigured uplink resource PUR
  • PUR preconfigured uplink resource
  • the resource can also be named other names, such as configuring authorized resources. It should be understood that if the authorized resources are configured
  • the functions implemented by the first resource in the embodiment of the present application can also be realized, and the configured authorized resource can also be understood as the first resource in the embodiment of the present application.
  • the first resource is collectively referred to as a pre-configured resource in the embodiment of the present application.
  • the first information since the first information is included in the data scheduled by DCI and/or DCI, and the CRC of the DCI is scrambled by RA-RNTI, the number of blind detections of the downlink control channel by the first device can be reduced, and the number of The power of a device.
  • the utilization rate of resources can be improved.
  • the first information includes first indication information, and the first device can determine whether the first resource can be used to transmit information according to the first indication information. This not only improves resource utilization, but also reduces the first device’s Power consumption.
  • the first information includes the second indication information
  • the first device can determine the acknowledgement information (Acknowledgment, ACK) and negative information (Negative Acknowledgement, NACK) feedback of the information transmitted on the pre-configured resource, that is, to know the information Whether it is successfully received by the network device, which can reduce the packet loss rate and increase the probability of successful transmission.
  • acknowledgement information Acknowledgment, ACK
  • NACK Negative Acknowledgement
  • the cyclic redundancy code check CRC of the downlink control information DCI is scrambled by the random access-radio temporary identification RA-RNTI.
  • the CRC of the downlink control information DCI is scrambled by system information-radio network temporary identification (system information-RNTI, SI-RNTI).
  • system information-RNTI system information-radio network temporary identification
  • the number of RNTIs monitored by the first device can be reduced by multiplexing SI-RNTI, which not only saves the power consumption of the terminal device and reduces the complexity of implementation, but also reduces the number of RNTIs determined by the second device. This reduces the complexity of the implementation of the second device.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the data scheduled by the DCI may include only a random access response (randon access response; RAR), may also include only a medium access control subheader, or may include both RAR and medium access control subheader.
  • RAR may be a media access control layer (media access control; MAC) RAR.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field and the hybrid Automatic retransmission request-confirm the offset field of the information resource.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the downlink control information DCI schedules
  • the data includes the first information, and the data scheduled by the downlink control information DCI also includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information may include only the first indication information, or may only include the second indication information, or may include both the first indication information and the second indication information, in order to make the first indication information
  • the device can correctly parse the indication information contained in the first information, and the DCI and/or DCI scheduled data may also include third indication information, where the third indication information is used to indicate the indication information contained in the first information Instructions.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a random access response RAR, and the third indication information Located in the second field of the random access response RAR;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS or a transmission block. Size TBS.
  • the third indication information can be used to indicate that the DCI and/or DCI scheduled data includes the first information
  • a predefined way, high-level signaling such as RRC, or other fields in the DCI can also be used to indicate the first information The instructions contained in.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication The information is located in the fourth field of the medium access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • one bit in the type field or the reserved bit field can be used to represent the third indication information, or two bits in the reserved bit field can also be used to represent the third indication information.
  • the first device monitors the physical downlink control channel PDCCH carrying the downlink control information DCI in the m-th random access response RAR window after the n+k subframe, to receive The first information; wherein, n is the last subframe transmitted by the first resource or the second resource, k is an integer greater than or equal to zero, and m is an integer greater than or equal to 1.
  • m can be 1, 2, or 3, etc.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement level corresponding to the random access response RAR window
  • the mode is the same as the coverage enhancement mode of the first device.
  • an embodiment of the present application provides a communication method, including:
  • the second device determines first information, where the first information is included in downlink control information DCI, and/or the first information is included in data scheduled by the downlink control information DCI;
  • the second device sends the first information to the first device; the first information includes first indication information, and the first indication information is used to instruct the first device to determine whether the first resource can be used to transmit information And/or, the first information includes second indication information, the second indication information is used to instruct the first device to determine whether the second device successfully receives the second information, and the second information is included in Information transmitted on the second resource.
  • the first resource and the second resource are both pre-configured resources.
  • the preconfigured uplink resource PUR
  • PUR preconfigured uplink resource
  • the resource can also be named other names, such as configuring authorized resources. It should be understood that if the authorized resources are configured
  • the functions implemented by the first resource in the embodiment of the present application can also be realized, and the configured authorized resource can also be understood as the first resource in the embodiment of the present application.
  • the first resource is collectively referred to as a pre-configured resource in the embodiment of the present application.
  • the first information since the first information is included in the data scheduled by DCI and/or DCI, and the CRC of DCI is scrambled by RA-RNTI, the first information includes the first indication information, and the first device is Determining whether the first resource can be used to transmit information according to the first indication information can reduce the power consumption of the first device.
  • the first information includes the second indication information, and the first device can determine the acknowledgement information (Acknowledgment, ACK) and negative information (Negative Acknowledgement, NACK) feedback of the information transmitted on the pre-configured resource, that is, to know the information Whether it is successfully received by the network device.
  • acknowledgement information Acknowledgment, ACK
  • NACK Negative Acknowledgement
  • the cyclic redundancy code check CRC of the downlink control information DCI is scrambled by the random access-radio temporary identification RA-RNTI.
  • the CRC of the downlink control information DCI is scrambled by system information-radio network temporary identification (system information-RNTI, SI-RNTI).
  • system information-RNTI system information-radio network temporary identification
  • the number of RNTIs monitored by the first device can be reduced by multiplexing SI-RNTI, which not only saves the power consumption of the terminal device and reduces the complexity of implementation, but also reduces the number of RNTIs determined by the second device. This reduces the complexity of the implementation of the second device.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the data scheduled by the DCI may include only RAR, may also include only the medium access control sub-header, or may include both RAR and medium access control sub-header.
  • RAR can be MAC RAR.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following bit fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field, and Hybrid automatic repeat request-confirmation information resource offset field.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the downlink control information DCI schedules
  • the data includes the first information, and the data scheduled by the downlink control information DCI also includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information may include only the first indication information, or may only include the second indication information, or may include both the first indication information and the second indication information, in order to make the first indication information
  • the device can correctly parse the indication information contained in the first information, and the DCI and/or DCI scheduled data may also include third indication information, where the third indication information is used to indicate the indication information contained in the first information Instructions.
  • the first information is included in the data scheduled by the downlink control information DCI, and the data scheduled by the DCI is a random access response RAR, and the third indication information is located in the In the second field of the random access response RAR;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS and a transmission block. Size TBS.
  • the third indication information can be used to indicate that the DCI and/or DCI scheduled data includes the first information
  • a predefined way, high-level signaling such as RRC, or other fields in the DCI can also be used to indicate the first information The instructions contained in.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication The information is located in the fourth field of the medium access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • one bit in the type field or the reserved bit field can be used to represent the third indication information, or two bits in the reserved bit field can also be used to represent the third indication information.
  • the first device monitors the physical downlink control channel PDCCH carrying the downlink control information DCI in the m-th random access response RAR window after the n+k subframe, to receive The first information; wherein, n is the last subframe transmitted by the first resource or the second resource, k is an integer greater than or equal to zero, and m is an integer greater than or equal to 1.
  • m can be 1, 2, or 3, etc.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement level corresponding to the random access response RAR window
  • the mode is the same as the coverage enhancement mode of the first device.
  • an embodiment of the present application provides a communication device, including:
  • the receiving unit is configured to receive the first information sent by the second device; the first information is included in the downlink control information DCI, and/or the first information is included in the data scheduled by the downlink control information DCI;
  • the cyclic redundancy code check CRC of the downlink control information DCI is scrambled by the random access-radio temporary identifier RA-RNTI;
  • the processing unit where the first information includes first indication information, is used to determine whether the first resource can be used to transmit information according to the first indication information; and/or, the first information includes second indication information, After determining whether the second device successfully receives the second information according to the second indication information, the second information includes information transmitted on the second resource.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following bit fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field, and Hybrid automatic repeat request-confirmation information resource offset field.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the downlink control information DCI schedules
  • the data includes the first information, and the data scheduled by the downlink control information DCI also includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information is included in the data scheduled by the downlink control information DCI, and the data scheduled by the DCI is a random access response RAR, and the third indication information is located in the In the second field of the random access response RAR;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS and a transmission block. Size TBS.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication The information is located in the fourth field of the medium access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • the first device monitors the physical downlink control channel PDCCH carrying the downlink control information DCI in the m-th random access response RAR window after the n+k subframe, to receive The first information; wherein, n is the last subframe transmitted by the first resource or the second resource, k is an integer greater than or equal to zero, and m is an integer greater than or equal to 1.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement level corresponding to the random access response RAR window
  • the mode is the same as the coverage enhancement mode of the first device.
  • an embodiment of the present application provides a communication device, including:
  • the processing unit is configured to determine first information, the first information is included in the downlink control information DCI, and/or the first information is included in the data scheduled by the downlink control information DCI; the downlink control information DCI
  • the cyclic redundancy code check CRC is scrambled by the random access radio temporary identification RA-RNTI;
  • a sending unit configured to send the first information to a first device; the first information includes first indication information, and the first indication information is used to instruct the first device to determine whether the first resource can be used to transmit information And/or, the first information includes second indication information, the second indication information is used to instruct the first device to determine whether the second device successfully receives the second information, and the second information is included in Information transmitted on the second resource.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following bit fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field, and Hybrid automatic repeat request-confirmation information resource offset field.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the downlink control information DCI schedules
  • the data includes the first information, and the data scheduled by the downlink control information DCI also includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information is included in the data scheduled by the downlink control information DCI, and the data scheduled by the DCI is a random access response RAR, and the third indication information is located in the In the second field of the random access response RAR;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS and a transmission block. Size TBS.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication The information is located in the fourth field of the medium access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • the first device monitors the physical downlink control channel PDCCH carrying the downlink control information DCI in the m-th random access response RAR window after the n+k subframe, to receive The first information; wherein, n is the last subframe transmitted by the first resource or the second resource, k is an integer greater than or equal to zero, and m is an integer greater than or equal to 1.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement level corresponding to the random access response RAR window
  • the mode is the same as the coverage enhancement mode of the first device.
  • the apparatus provided in the third and fourth aspects of the present application may be a communication device or a chip in a communication device, and the communication device or the chip has a communication method in any of the above-mentioned aspects or any possible manners thereof.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above functions.
  • the communication device includes a processing unit and a transceiving unit.
  • the processing unit may be a processor, the transceiving unit may be a transceiver, and the transceiver includes a radio frequency circuit.
  • the communication device further includes a storage unit.
  • the storage unit may be a memory, for example.
  • the chip includes a processing unit and a transceiving unit, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, or a circuit on the chip.
  • the processing unit can execute the computer-executable instructions stored in the storage unit, so that the chip executes the above-mentioned aspects or the communication method in any possible manner.
  • the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), and the storage unit may also be a storage unit in the communication device located outside the chip (for example, Read-only memory (read-only memory, ROM) or other types of static storage devices (for example, random access memory (RAM)) that can store static information and instructions.
  • the aforementioned processor can be a central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC), or one or more for controlling the above aspects or Its any possible way of communication method program execution integrated circuit.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • an embodiment of the present application also provides a first device, and the first device may include a processor and a memory;
  • the memory is used to store program instructions
  • the processor is configured to call and execute program instructions stored in the memory, and execute the communication method according to any one of the above-mentioned first aspects.
  • an embodiment of the present application also provides a second device, and the second device may include a processor and a memory;
  • the memory is used to store program instructions
  • the processor is configured to call and execute the program instructions stored in the memory, and execute the communication method according to any one of the above second aspects.
  • an embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • the computer program executes any one of the foregoing Communication method.
  • an embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • the computer program When the computer program is executed by a processor, it executes any one of the above-mentioned second aspects. Communication method.
  • the embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the communication method provided in the first aspect of the embodiments of the present application.
  • the embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the communication method provided in the second aspect of the embodiments of the present application.
  • an embodiment of the present application further provides a chip on which a computer program is stored, and when the computer program is executed by a processor, the communication method provided in the above-mentioned first aspect is executed.
  • an embodiment of the present application further provides a chip on which a computer program is stored, and when the computer program is executed by a processor, the communication method provided in the above second aspect is executed.
  • an embodiment of the present application also provides a communication system, which includes the communication device provided in the third aspect and the communication device provided in the fourth aspect.
  • the first device receives the first information sent by the second device, and the DCI includes the first information, and/or the data scheduled by the DCI includes the first information, and the CRC of the DCI Scrambling is performed by RA-RNTI, and when the first indication information is included in the first information, the first device determines whether the first resource can be used to transmit information according to the first indication information; and/or, the second information is included in the first information When indicating information, the first device determines whether the second device successfully receives the second information according to the second instruction information, and the second information includes the information transmitted on the second resource.
  • the first information is included in the data scheduled by the DCI and/or DCI, and the CRC of the DCI is scrambled by the RA-RNTI, the number of blind detections of the downlink control channel by the first device can be reduced, and the power of the first device can be reduced. In addition, since the existing DCI and/or DCI scheduled data is reused, the utilization rate of resources can be improved. Further, the first information includes first indication information, and the first device can determine whether the first resource can be used to transmit information according to the first indication information. This not only improves resource utilization, but also reduces the first device’s Power consumption.
  • the first information includes the second indication information
  • the first device can determine the acknowledgement information (Acknowledgment, ACK) and negative information (Negative Acknowledgement, NACK) feedback of the information transmitted on the pre-configured resource, that is, to know the information Whether it is successfully received by the network device, which can reduce the packet loss rate and increase the probability of successful transmission.
  • acknowledgement information Acknowledgment, ACK
  • NACK Negative Acknowledgement
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a signaling interaction diagram of the communication method of this application.
  • Figure 3 is a schematic diagram of the first device monitoring PDCCH
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • Fig. 7 is a schematic structural diagram of a network device provided by an embodiment of the application.
  • a terminal device can be a wireless terminal device that can receive network device scheduling and instruction information.
  • a wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or a connection Other processing equipment to the wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • the wireless terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in an NR communication system, and so on.
  • a next-generation communication system for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in an NR communication system, and so on.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • terminal equipment may also include drones, such as airborne communication equipment on drones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an AP in a wireless local area network (WLAN), a global system for mobile communications (GSM), or code division multiple access (GSM).
  • WLAN wireless local area network
  • GSM global system for mobile communications
  • GSM code division multiple access
  • the base transceiver station in Code Division Multiple Access (CDMA), the base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or the long-term evolution ( Long Term Evolution (LTE) evolved Node B (evolutional Node B, eNB or eNodeB), or relay station or access point, or vehicle-mounted equipment, wearable equipment, and network equipment in the future 5G network or the future evolution of public land mobile Network equipment in the public land mobile network (PLMN) network, or gNodeB in the NR system, etc.
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • relay station or access point or vehicle-mounted equipment, wearable equipment, and network equipment in the future 5G network or the future evolution of public land mobile Network equipment in the public land mobile network (PLMN) network, or gNodeB in the NR system, etc.
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment. (E.g. base station)
  • the corresponding cell the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell, and pico cell (pico cell), femto cell (femto cell), etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • a device that provides a wireless communication function for a terminal device is called a network device.
  • the data scheduled by DCI can also be referred to as a data channel scheduled by DCI.
  • the unit in this application refers to a functional unit or a logical unit. It can be in the form of software, and its function is realized by the processor executing the program code; it can also be in the form of hardware.
  • Multiple refers to two or more than two, and other quantifiers are similar.
  • And/or describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • the range described as “above” or “below” includes boundary points.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • the communication system may include at least one network device 10 and at least one terminal device located within the coverage area of the network device 10.
  • the terminal device can be a fixed location or movable.
  • Fig. 1 is only a schematic diagram.
  • the communication system may also include other devices, such as a core network device (not shown in Fig. 1), and the network device is connected to the core network device in a wireless or wired manner.
  • the core network equipment and the network equipment can be separate and different physical equipment, the functions of the core network equipment and the logical functions of the network equipment can also be integrated on the same physical equipment, or part of the core network equipment can be integrated on the same physical equipment
  • the functions and functions of some network devices may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1.
  • the embodiment of the present application does not limit the number of core network equipment, network equipment, and terminal equipment included in the communication system.
  • the network device 10 may send downlink information to one or some of the terminal devices 11 to 16.
  • the terminal device 11 to the terminal device 15 that can directly communicate with the network device 10 may also send uplink information to the network device 10 separately or at the same time.
  • the aforementioned communication system may be a 5G new radio (5G new radio, 5G NR) system.
  • 5G new radio 5G new radio
  • the embodiments of this application can also be applied to other communication systems, as long as there is an entity in the communication system that can determine the first information, and the first information is included in the downlink control information (DCI), and/or the first information A piece of information is included in the data scheduled by the DCI.
  • DCI downlink control information
  • the cyclical redundancy check (CRC) of the DCI is scrambled by the random access-radio network temporary identifier (RA-RNTI), And the entity sends the determined first information to another entity, and the other entity determines that the first information includes the first indication information, and will determine whether the first resource can be used to transmit information according to the first indication information, and/ Or, when another entity determines that the first information includes the second indication information, it will determine whether the entity successfully receives the second information according to the first indication information, where the second information includes the information transmitted on the second resource.
  • RA-RNTI random access-radio network temporary identifier
  • the terminal device 14 to the terminal device 16 can also form a device-to-device communication system.
  • the terminal device 15 as the sender can send information to the terminal device 14 and the terminal device 16.
  • One or more of the terminal devices send information, and correspondingly, the terminal device 14 and the terminal device 16 can send data to the terminal device 15 separately or simultaneously.
  • Network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airborne aircraft, balloons, and satellites.
  • the embodiments of the present application do not limit the application scenarios of network equipment and terminal equipment.
  • the first device is the terminal device and the second device is the network device as an example.
  • the first device and the second device may also be other devices, such as the first device and the second device.
  • One device may be a device with receiving capability, and the second device may be a device with sending capability.
  • the uplink information may include one or more of data, control information, and reference signals.
  • the specific form of the uplink information is not specifically limited here.
  • the preconfigured uplink resource PUR is only an exemplary naming, and its essence is that by configuring the first resource of the network device, the terminal device can dynamically schedule or schedule the network device without the need for the network device.
  • the uplink information is transmitted on the first resource.
  • the resource can also be named other names, such as configuring authorized resources.
  • the first resource in the embodiment of this application can also be implemented.
  • the function implemented by a resource can also be understood as the first resource in the embodiment of the application.
  • the first resource is collectively referred to as a pre-configured resource in the embodiment of the present application.
  • the pre-configured resources are generally configured according to a certain period. Therefore, after the pre-configured resources for pre-configured transmission are enabled, the pre-configured resources are all reserved for pre-configured resource transmission. This will bring two constraints and restrictions: 1. Because system resources are limited, if a large number of configurations are pre-configured resources, it will affect the resource usage of other terminal devices; 2. For terminal devices with poor channel quality, other The failure rate is high when using pre-configured resources, but the pre-configured resources are still occupied by the terminal device. The above two limitations will lead to a waste of system resources and increase the power consumption of terminal equipment.
  • the network device needs to activate or deactivate the pre-configured resource, and notify the terminal device through a system information (SI) whether the pre-configured resource is in an activated state or a deactivated state.
  • SI system information
  • the network device notifies the terminal device that the pre-configured resource is in the activated state or the deactivated state through the SI message, the large amount of data in the SI message results in high power consumption of the terminal device in the process of updating the SI.
  • how the terminal device determines whether the information transmitted on the pre-configured resource is successfully received by the network device is also a technical problem to be solved in the embodiment of the present application.
  • the first device receives the first information sent by the second device, and the DCI includes the first information, and/or the data scheduled by the DCI includes the first information.
  • Information the CRC of the DCI is scrambled by RA-RNTI, the first information includes first indication information, and the first device determines whether the first resource can be used to transmit information according to the first indication information; and/or, in the first
  • the information includes second indication information, and the first device determines whether the second device successfully receives the second information according to the second indication information, and the second information includes the information transmitted on the second resource.
  • the first information includes the first indication information, and the first device is in accordance with the first indication information Determining whether the first resource can be used to transmit information can reduce the power consumption of the first device.
  • the first information includes the second indication information, and the first device can determine the acknowledgement information (Acknowledgment, ACK) and negative information (Negative Acknowledgement, NACK) feedback of the information transmitted on the pre-configured resource, that is, to know the information Whether it is successfully received by the network device.
  • acknowledgement information Acknowledgment, ACK
  • NACK Negative Acknowledgement
  • Figure 2 is a signaling interaction diagram of the communication method of this application. This embodiment is described with the information interaction between the terminal device and the network device in the communication system. Based on the system architecture shown in FIG. 1, as shown in FIG. 2, in this embodiment, the communication method may include the following steps:
  • Step 201 The second device determines the first information.
  • the first information is included in the DCI, that is, the DCI includes the first information, and/or the data scheduled by the DCI includes the first information.
  • the first information may be included in the DCI, or the first information may be included in the data scheduled by the DCI, or the first information may also be included in the DCI and the data scheduled by the DCI.
  • the data scheduled by the DCI may also be a data channel scheduled by the DCI.
  • the CRC of the aforementioned DCI is scrambled by RA-RNTI. Since the current RA-RNTI scrambled DCI can be used to schedule random access responses, in the embodiment of the present application, by multiplexing the redundant field of the DCI, network resources can be saved, which is beneficial to reducing network burden.
  • the CRC of the aforementioned DCI may also be scrambled by the system information-radio network temporary identification (system information-RNTI, SI-RNTI).
  • SI-RNTI system information-radio network temporary identification
  • the aforementioned DCI scheduled data includes random access response (RAR) and/or media Access control subheader.
  • RAR random access response
  • the data scheduled by the DCI may include only RAR, may also include only the medium access control subheader, or may also include both RAR and medium access control subheader.
  • RAR may be a media access control layer (media access control; MAC) RAR.
  • the first information is included in the DCI, that is, the DCI includes the first information, and the first information is included in the first field of the DCI, where the first field includes one or more of the following fields:
  • the transmission power control command field of the physical uplink control channel (transmit power control, TPC) command for (physical uplink control channel, PUCCH)
  • hybrid automatic repeat request (HARQ) process number field new data indication (new data indicator, NDI) field, downlink transmission resource index (downlink assignment index, DAI) field
  • HARQ-ACK resource offset hybrid automatic repeat request-acknowledgement information resource offset
  • the first information is included in the first field of the coverage enhancement mode A (CE Mode A) for the first device.
  • the first field may include the physical uplink control channel One of the transmission power control command (TPC command for PUCCH) field, the HARQ process number (HARQ process number) field, the NDI field, the DAI field, and the hybrid automatic repeat request-acknowledgement resource offset (HARQ-ACK resource offset) field Or more; for the first device in coverage enhanced mode B (CE Mode B), the first field includes HARQ process number (HARQ process number) field, NDI field and hybrid automatic repeat request-acknowledgement information resource offset (HARQ -One or more of the ACK resource offset) field.
  • Step 202 The second device sends the first information to the first device.
  • the second device after determining the first information, the second device sends the determined first information to the first device.
  • the first device monitors the physical downlink control channel (Physical Downlink Control Channel; PDCCH) carrying DCI in the m-th RAR window after n+k subframes to receive the first information; where n is the first In the last subframe of the resource or the second resource transmission, k is an integer greater than or equal to zero, and m is an integer greater than or equal to 1.
  • PDCCH Physical Downlink Control Channel
  • the value of m can be 1, 2, or 3, etc.
  • the first device will monitor the first RAR window after the pre-configured transmission of the first resource or the second resource is completed plus k subframes.
  • Figure 3 is a schematic diagram of the first device monitoring PDCCH, taking m as an example, the first device will monitor the PDCCH carrying DCI in the first RAR window after n+k subframes, that is, monitor in RAR window 0 PDCCH.
  • the coverage enhancement level corresponding to the RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement mode corresponding to the RAR window is the same as the coverage enhancement mode of the first device.
  • Coverage enhancement mode A (CE Mode A) or the first device with coverage enhancement level 0 or 1 will monitor the RAR window with coverage enhancement level 0 or 1
  • coverage enhancement mode B (CE Mode B) or coverage enhancement level is The first device with 2 or 3 will monitor the RAR window with coverage enhancement level 2 or 3.
  • Step 203 The first information includes first indication information, and the first device determines whether the first resource can be used to transmit information according to the first indication information; and/or, the first information includes second indication information, and the first device according to the second indication The information determines whether the second device successfully receives the second information; the second information includes the information transmitted on the second resource.
  • the first information may include only the first indication information, or may only include the second indication information, or may also include both the first indication information and the second indication information.
  • the first information includes first indication information, and the first device will determine whether the first resource can be used to transmit information according to the first indication information, that is, whether it is on the first resource To transmit information, where the first resource is a pre-configured resource, and further, the first resource may be a pre-configured time-frequency resource.
  • using the first resource to transmit information means using the first resource to transmit at least one of the following information: data, control information, and reference signaling. It can also be understood as activating or enabling the first resource , Or understood as indicating that the first resource is in an active state or an enabled state; not using the first resource to transmit information means not using the first resource to transmit at least one of the following information: data, control information, and reference signaling, or It is understood as deactivating or de-enabling the first resource, or as indicating that the first resource is in a deactivated state or a de-enabled state.
  • the first device may determine whether to use the first resource for information transmission or not to use the first resource for information transmission through the first indication information, or the first device may use the first indication information to determine whether the first resource is in The activated state is still in the deactivated state, or the first device may determine whether the first resource is in the enabled state or the disabled state through the first indication information, so as to determine whether the first resource can be used to transmit information. For example: if the first resource is in the activated state, the first device will be able to use the pre-configured first resource to transmit information, if the first resource is in the deactivated state, the first device will not use the pre-configured first resource transmit information.
  • the first information includes second indication information
  • the first device will determine whether the second device successfully receives the second information according to the second indication information, and the second information is included in the second indication information. 2. Information transmitted on resources.
  • the first device determines whether the second device successfully receives the second information according to the second indication information. It can be understood that the first device determines the status of the second information according to the second indication information, where the status of the second information includes the second information. The status of the device successfully receiving the second information and the status of the second device not successfully receiving the second information.
  • the second resource is a pre-configured resource.
  • the second resource may be a pre-configured time-frequency resource.
  • the second resource and the first resource may be the same or different.
  • the first device may determine whether the second device successfully receives the information transmitted on the second resource through the second indication information, where the second indication information may be ACK, NACK or retransmission. For example: if the second indication information is ACK, the first device determines that the second device successfully receives the second information, and if the second indication information is NACK or retransmission, the first device determines that the second device has not successfully received the second information.
  • the first information includes the first indication information and the second indication information
  • the first device will determine whether the first resource can be used to transmit information according to the first indication information, and according to the second indication information
  • the indication information determines whether the second device successfully receives the second information.
  • the manner in which the first device determines whether the first resource can be used to transmit information according to the first indication information, and the manner in which the second device successfully receives the second information according to the second indication information is similar to the manner in the foregoing embodiment, here No longer.
  • the first information may include only the first indication information, may also include only the second indication information, or may include both the first indication information and the second indication information. Indication information. Therefore, in order to enable the first device to correctly parse out the indication information contained in the first information, the DCI and/or DCI scheduled data may also include third indication information, wherein the third indication information is used To indicate the instruction information contained in the first information.
  • the DCI scheduled data also includes third indication information.
  • the first information is included in the DCI and the DCI scheduled data, that is, the DCI and the DCI scheduled data also include the first information, the DCI and the DCI scheduled data It also includes third instruction information.
  • the above-mentioned third indication information can also be carried in system messages, or can be carried in radio resource control commands (radio resource control, RRC) and/or media access control signaling (media access control control element, MAC CE) in.
  • RRC radio resource control
  • MAC CE media access control control element
  • the above-mentioned third indication information may be used to indicate whether the DCI and/or the data scheduled by the DCI includes the first information, that is, the third indication information may be used to indicate whether the DCI includes the first information , Or used to indicate whether the DCI scheduled data includes the first information, or used to indicate whether the DCI and the DCI scheduled data include the first information.
  • 1 bit may be used in the DCI to indicate the third indication information to indicate whether the DCI includes the first information
  • 1 bit may be used in the DCI scheduled data to indicate the third indication information, to Indicate whether the first information is included in the data scheduled by the DCI
  • one bit may be used to represent the third indication information in the DCI and the data scheduled by the DCI, respectively, to indicate whether the first information is included in the data scheduled by the DCI. For example: when the third indication information is "0", the data indicating DCI and/or DCI scheduling does not include the first information, and when the third indication information is "1", it indicates DCI and/or DCI scheduling data Including the first information.
  • the third indication information may also be expressed in other ways, for example, a different identifier is used to indicate whether the DCI and/or DCI scheduled data includes the first information. For another example: when using 2 bits to represent the third indication information, when the third indication information is "00", the data indicating the DCI and/or DCI scheduling does not include the first information.
  • the third indication information when the third indication information is "1", the data indicating the DCI and/or DCI scheduling does not include the first information, and when the third indication information is "0", it indicates the DCI and/or DCI scheduling.
  • the data includes the first information.
  • the third indication information is "00" the data indicating the DCI and/or DCI scheduling includes the first information.
  • the third indication information indicates that the DCI and/or DCI scheduled data includes the first information
  • the third indication information is also used to indicate the indication information contained in the first information, that is, the third indication information It is used to indicate that the first information includes the first indication information, or the third indication information is used to indicate that the first information includes the second indication information, or the third indication information is used to indicate that the first information includes both It includes first indication information and second indication information.
  • the third indication information is represented by 2bit
  • the third indication information is "01” it indicates that the first indication information is included in the first information
  • the third indication information is "10”
  • the third instruction information is "11"
  • the third indication information can also be expressed in other ways, such as using different identifiers to indicate different indication information.
  • the third indication information is located in the second field of RAR; where the second field is included in the uplink grant in MAC RAR, And the second field includes at least one of the following: message 3 physical uplink shared channel resource allocation field (Msg3 (physical uplink shared channel, PUSCH) Resource allocation), message 3 physical uplink shared channel repetitions (number of Repetitions for Msg3 PUSCH) field ,
  • Msg3 physical uplink shared channel resource allocation field
  • MCS modulation and coding scheme
  • transport block size transport block size
  • the third indication information is located in the uplink grant (uplink grant) in the message 3 physical uplink shared channel resource allocation field, if the value of the third indication information is "0000", it may indicate that the DCI and/or DCI scheduled data includes the first information; if the value of the third indication information is "1111”, it may indicate that the DCI and/or DCI scheduled data does not include the first information. information. It should be noted that "0000” may also be used to indicate that the DCI and/or DCI scheduled data does not include the first information; "1111” is used to indicate that the DCI and/or DCI scheduled data includes the first information.
  • the value of the third indication information is "00", it can indicate that the DCI and/or DCI scheduled data includes There is the first information; if the value of the third indication information is "11”, it may indicate that the DCI and/or the data scheduled by the DCI does not include the first information. It should be noted that "00" may also be used to indicate that the DCI and/or DCI scheduled data does not include the first information; “11” may be used to indicate that the DCI and/or DCI scheduled data includes the first information.
  • the third indication information is located in the message 3 physical uplink shared channel resource allocation field and the message 3 physical uplink shared channel repetition field. If the value of the message 3 physical uplink shared channel resource allocation field is "0000", and the message 3 physical uplink shared The value of the channel repetition field is "00", which may indicate that the data scheduled by DCI and/or DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "1111", and message 3 The value of the repetition count field of the physical uplink shared channel is "11", which may indicate that the first information is not included in the DCI and/or the data scheduled by the DCI.
  • the value of the physical uplink shared channel resource allocation field in message 3 is "0000" and the value of the repetition times field of the physical uplink shared channel in message 3 is "00", it means DCI and/or DCI
  • the first information is not included in the scheduled data; when the value of the physical uplink shared channel resource allocation field in message 3 is "1111", and the value of the repetition times field of the physical uplink shared channel in message 3 is "11", it means DCI and/ Or the data scheduled by the DCI includes the first information.
  • the third indication information is located in the physical uplink shared channel resource allocation field and MCS of message 3. If the value of the physical uplink shared channel resource allocation field of message 3 is "0000" and the value of MCS is "111", it can indicate DCI and/ Or the data scheduled by the DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "1111" and the value of the MCS is "000”, it can indicate that the DCI and/or the data scheduled by the DCI Does not include the first information.
  • the third indication information is located in the physical uplink shared channel resource allocation field and TBS of message 3. If the value of the physical uplink shared channel resource allocation field of message 3 is "0000" and the value of TBS is "11”, it can indicate DCI and/ Or the data scheduled by DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "1111" and the value of TBS is "00", it can indicate that the data in the DCI and/or DCI scheduling Does not include the first information.
  • the third indication information is located in the repetition times field and MCS of the physical uplink shared channel of message 3. If the value of the repetition times field of the physical uplink shared channel of message 3 is "00" and the value of MCS is "111", it can indicate DCI And/or the data of the DCI scheduling includes the first information; if the value of the repetition count field of the physical uplink shared channel of message 3 is "11", and the value of the MCS is "000", it can indicate the DCI and/or DCI scheduling The data does not include the first information.
  • the third indication information is in the repetition times field and TBS of the physical uplink shared channel of message 3. If the value of the repetition times field of the physical uplink shared channel of message 3 is "00" and the value of TBS is "11", it can indicate DCI And/or the data of the DCI scheduling includes the first information; if the value of the repetition times field of the physical uplink shared channel of message 3 is "11" and the value of TBS is "00", it can indicate the DCI and/or DCI scheduling The data does not include the first information.
  • the first information can also be indicated in a predefined manner, high-level signaling such as RRC, or other fields in the DCI The instructions contained in.
  • the third indication information is located in the uplink grant (uplink grant). Message 3 Physical uplink shared channel resource allocation field. If the value of the third indication information is "000”, then It may indicate that the DCI and/or DCI scheduled data includes the first information; if the value of the third indication information is "111", it may indicate that the DCI and/or DCI scheduled data does not include the first information. It should be noted that “000” may also be used to indicate that the DCI and/or DCI scheduled data does not include the first information; “111” is used to indicate that the DCI and/or DCI scheduled data includes the first information.
  • the third indication information is located in the uplink grant (uplink grant) in the message 3 physical uplink shared channel repetition field. If the value of the third indication information is "000", it can indicate that the DCI and/or DCI scheduled data includes The first information; if the value of the third indication information is "111", it may indicate that the DCI and/or DCI scheduled data does not include the first information. It should be noted that “000” may also be used to indicate that the DCI and/or DCI scheduled data does not include the first information; “111” is used to indicate that the DCI and/or DCI scheduled data includes the first information.
  • the third indication information is located in the message 3 physical uplink shared channel resource allocation field and the message 3 physical uplink shared channel repetition field. If the value of the message 3 physical uplink shared channel resource allocation field is "000" and the message 3 physical uplink shared The value of the channel repeat count field is "000", it may indicate that the data scheduled by DCI and/or DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "111", and message 3 The value of the repetition count field of the physical uplink shared channel is "111", which may indicate that the DCI and/or the data scheduled by the DCI does not include the first information.
  • the value of the resource allocation field of the physical uplink shared channel in message 3 is "000" and the value of the repetition times field of the physical uplink shared channel in message 3 is "000", it indicates DCI and/or DCI
  • the first information is not included in the scheduled data; when the value of the physical uplink shared channel resource allocation field in message 3 is "111", and the value of the repetition times field of the physical uplink shared channel in message 3 is "111", it means DCI and/ Or the data scheduled by the DCI includes the first information.
  • the third indication information is located in the physical uplink shared channel resource allocation field and MCS of message 3. If the value of the physical uplink shared channel resource allocation field of message 3 is "000" and the value of MCS is "111", it can indicate DCI and/ Or the data scheduled by the DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "111" and the value of the MCS is "000", it can indicate that the DCI and/or the data scheduled by the DCI Does not include the first information.
  • the third indication information is located in the physical uplink shared channel resource allocation field and TBS of message 3. If the value of the physical uplink shared channel resource allocation field of message 3 is "000" and the value of TBS is "11", it can indicate DCI and/ Or the data scheduled by DCI includes the first information; if the value of the physical uplink shared channel resource allocation field of message 3 is "111" and the value of TBS is "00", it can indicate that the data in DCI and/or DCI scheduling Does not include the first information.
  • the value of the physical uplink shared channel resource allocation field of message 3 is "000" and the value of TBS is "11", it means that the first information is not included in the data scheduled by DCI and/or DCI ;
  • the value of the physical uplink shared channel resource allocation field in message 3 is "111" and the value of TBS is "00”, it means that the DCI and/or the data scheduled by the DCI includes the first information.
  • the third indication information is in the message 3 physical uplink shared channel repetition field and MCS. If the message 3 physical uplink shared channel repetition field value is "000" and the MCS value is "111", it can indicate DCI And/or the data of DCI scheduling includes the first information; if the value of the number of repetitions field of the physical uplink shared channel of message 3 is "111" and the value of MCS is "000", it can indicate DCI and/or DCI scheduling The data does not include the first information.
  • the third indication information is located in the repetition times field and TBS of the physical uplink shared channel of message 3. If the value of the repetition times field of the physical uplink shared channel of message 3 is "000" and the value of TBS is "11", it can indicate DCI And/or the data of DCI scheduling includes the first information; if the value of the number of repetitions field of the physical uplink shared channel of message 3 is "111" and the value of TBS is "00", it can indicate DCI and/or DCI scheduling The data does not include the first information.
  • the first information can also be indicated in a predefined manner, high-level signaling such as RRC, or other fields in the DCI The instructions contained in.
  • the first information is included in the data scheduled by DCI, and the data scheduled by DCI is the media access control subheader, and the third indication information is located in the fourth field of the media access control subheader; wherein, the fourth field includes at least the following One: the type field of the media access control subheader and the reserved bit field of the media access control subheader.
  • one bit in the type field or the reserved bit field may be used to represent the third indication information, as shown in Table 1 below:
  • bits in the reserved bit field can also be used to represent the third indication information, as shown in Table 2 below:
  • R1 is the first reserved bit field
  • R2 is the second reserved bit field.
  • the value of the type field T is 0, it indicates that the data for DCI/DCI scheduling includes third indication information.
  • the value of the reserved bit field is 01
  • the third indication information indicates that the first information includes the first indication information; or
  • the value of the bit field is 10
  • the third indication information indicates that the first information includes second indication information; or, the value of the reserved bit field
  • At 11 o'clock it indicates that the data for DCI/DCI scheduling includes third indication information
  • the third indication information indicates that the first information includes first indication information and second indication information.
  • q bits may be used in the DCI to indicate the manner of carrying the first information. For example: if q is 1, if the value of this bit is 0, it means that the DCI does not carry the first information and/or the data scheduled by the DCI does not carry the first information; if the value of the bit is 1, it means The DCI carries the first information and/or the DCI scheduled data carries the first information.
  • q is 2
  • the value of these two bits is 00, it means that the first information is not carried in the DCI and/or the first information is not carried in the data scheduled by the DCI.
  • the value of the bit is 01, it means that the DCI carries the first information. If the value of these two bits is 10, it means that the data scheduled by the DCI carries the first information. If the value of the two bits is 11, then It means that the DCI carries the first information, and the data scheduled by the DCI also carries the first information.
  • q is 2
  • the value of these two bits is 00, it means that the DCI does not carry the first information and/or the data scheduled by the DCI does not carry the first information.
  • the value of the bits is 01, which means that the DCI carries the first information, and the first information includes the first indication information; if the value of these two bits is 10, it means that the data scheduled by the DCI carries the first Information, and the first information includes the second indication information; if the value of these two bits is 11, it means that the first information includes the first indication information and the second indication information.
  • the first device receives the first information sent by the second device, the DCI includes the first information, and/or the data scheduled by the DCI includes the first information, and the CRC of the DCI is determined by the RA -RNTI performs scrambling, and when the first information includes the first indication information, the first device determines whether the first resource can be used to transmit the information according to the first indication information; and/or, the second indication information is included in the first information
  • the second information includes the information transmitted on the second resource.
  • the first information is included in the data scheduled by the DCI and/or DCI, and the CRC of the DCI is scrambled by the RA-RNTI, the number of blind detections of the downlink control channel by the first device can be reduced, and the power of the first device can be reduced. In addition, since the existing DCI and/or DCI scheduled data is reused, the utilization rate of resources can be improved. Further, the first information includes first indication information, and the first device can determine whether the first resource can be used to transmit information according to the first indication information. This not only improves resource utilization, but also reduces the first device’s Power consumption.
  • the first information includes the second indication information
  • the first device can determine the acknowledgement information (Acknowledgment, ACK) and negative information (Negative Acknowledgement, NACK) feedback of the information transmitted on the pre-configured resource, that is, to know the information Whether it is successfully received by the network device, which can reduce the packet loss rate and increase the probability of successful transmission.
  • acknowledgement information Acknowledgment, ACK
  • NACK Negative Acknowledgement
  • FIG. 4 is a schematic structural diagram of a communication device 40 provided by an embodiment of this application. Please refer to FIG. 4, the communication device 40 may include:
  • the receiving unit 11 is configured to receive first information sent by a second device; the first information is included in downlink control information DCI, and/or the first information is included in data scheduled by the downlink control information DCI;
  • the cyclic redundancy code check CRC of the downlink control information DCI is scrambled by random access-radio temporary identification RA-RNTI;
  • the processing unit 12, where the first information includes first indication information, is used to determine whether the first resource can be used to transmit information according to the first indication information; and/or, the first information includes second indication information, It is used to determine whether the second device successfully receives second information according to the second indication information, where the second information includes information transmitted on the second resource.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following bit fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field, and Hybrid automatic repeat request-confirmation information resource offset field.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the data scheduled by the downlink control information DCI includes the first One information, the data scheduled by the downlink control information DCI further includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI is a random access response RAR, and the third indication information is located in the random access response RAR.
  • the second field In the second field;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS and a transmission block. Size TBS.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication information is located in the media In the fourth field of the access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • the first device monitors the physical downlink control channel PDCCH that carries the downlink control information DCI in the m-th random access response RAR window after the n+k subframe to receive the first information;
  • the n is the last subframe transmitted by the first resource or the second resource
  • k is an integer greater than or equal to zero
  • m is an integer greater than or equal to 1.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement mode corresponding to the random access response RAR window is the same as that of the first device.
  • the coverage enhancement mode of a device is the same.
  • the communication device 40 shown in the embodiment of the present application can execute the technical solution of the communication method shown in any one of the foregoing embodiments, and its implementation principles and beneficial effects are similar, and will not be repeated here.
  • each unit of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity during actual implementation, or may be physically separated.
  • these units can all be implemented in the form of software invocation through processing elements; they can also be implemented in the form of hardware; part of the units can also be implemented in the form of software invocation through processing elements, and some of the units can be implemented in the form of hardware.
  • the sending unit may be a separate processing element, or it may be integrated in a certain chip of the communication device for implementation.
  • it may also be stored in the memory of the communication device in the form of a program and processed by a certain one of the communication device. The component calls and executes the function of the sending unit.
  • the implementation of other units is similar.
  • all or part of these units can be integrated together or implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capability.
  • each step of the above method or each of the above units can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above sending unit is a unit that controls sending, and can send information through the sending device of the communication device, such as an antenna and a radio frequency device.
  • the above units may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital singnal processors) , DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital singnal processors
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 5 is a schematic structural diagram of a communication device 50 provided by an embodiment of the application.
  • the communication device 50 may include:
  • the processing unit 21 is configured to determine first information, the first information is included in the downlink control information DCI, and/or the first information is included in the data scheduled by the downlink control information DCI; the downlink control information
  • the DCI cyclic redundancy code check CRC is scrambled by the random access radio temporary identification RA-RNTI;
  • the sending unit 22 is configured to send the first information to a first device; the first information includes first indication information, and the first indication information is used to instruct the first device to determine whether the first resource can be used for transmission Information; and/or, the first information includes second indication information, the second indication information is used to instruct the first device to determine whether the second device successfully receives the second information, and the second information includes Information transmitted on the second resource.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI includes a random access response RAR and/or a medium access control subheader.
  • the first information is included in the downlink control information DCI, and the first information is included in the first field of the downlink control information DCI;
  • the first field includes one or more of the following bit fields: the transmission power control command field of the physical uplink control channel, the hybrid automatic repeat request HARQ process number field, the new data indication NDI field, the downlink transmission resource index DAI field, and Hybrid automatic repeat request-confirmation information resource offset field.
  • the first information is included in the downlink control information DCI, and the downlink control information DCI further includes third indication information; and/or, the data scheduled by the downlink control information DCI includes the first One information, the data scheduled by the downlink control information DCI further includes third indication information;
  • the third indication information is used to indicate the indication information included in the first information.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the DCI is a random access response RAR, and the third indication information is located in the random access response RAR.
  • the second field In the second field;
  • the second field includes at least two of the following: a message 3 physical uplink shared channel resource allocation field, a message 3 physical uplink shared channel repetition count field, and a third field.
  • the third field is a modulation and coding strategy MCS and a transmission block. Size TBS.
  • the first information is included in data scheduled by the downlink control information DCI, and the data scheduled by the downlink control information DCI is a medium access control subheader, and the third indication information is located in the media In the fourth field of the access control subheader;
  • the fourth field includes at least one of the following: a type field of the media access control subheader and a reserved bit field of the media access control subheader.
  • the first device monitors the physical downlink control channel PDCCH that carries the downlink control information DCI in the m-th random access response RAR window after the n+k subframe to receive the first information;
  • the n is the last subframe transmitted by the first resource or the second resource
  • k is an integer greater than or equal to zero
  • m is an integer greater than or equal to 1.
  • the coverage enhancement level corresponding to the random access response RAR window is the same as the coverage enhancement level of the first device, or the coverage enhancement mode corresponding to the random access response RAR window is the same as that of the first device.
  • the coverage enhancement mode of a device is the same.
  • the communication device 40 shown in the embodiment of the present application can execute the technical solution of the communication method shown in any one of the foregoing embodiments, and its implementation principles and beneficial effects are similar, and will not be repeated here.
  • each unit of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity during actual implementation, or may be physically separated.
  • these units can all be implemented in the form of software invocation through processing elements; they can also be implemented in the form of hardware; part of the units can also be implemented in the form of software invocation through processing elements, and some of the units can be implemented in the form of hardware.
  • the sending unit may be a separate processing element, or it may be integrated in a certain chip of the communication device for implementation.
  • it may also be stored in the memory of the communication device in the form of a program and processed by a certain one of the communication device. The component calls and executes the function of the sending unit.
  • the implementation of other units is similar.
  • all or part of these units can be integrated together or implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capability.
  • each step of the above method or each of the above units can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above sending unit is a unit that controls sending, and can send information through the sending device of the communication device, such as an antenna and a radio frequency device.
  • the above units may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital singnal processors) , DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital singnal processors
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the application.
  • the terminal device includes: a processor 110, a memory 120, and a transceiver 130.
  • the transceiver 130 may be connected to an antenna.
  • the transceiver 130 receives information sent by the base station through an antenna, and sends the information to the processor 110 for processing.
  • the processor 110 processes the terminal data and sends it to the base station through the transceiver 130.
  • the memory 120 is used to store a program that implements the above method embodiment or each unit of the embodiment shown in FIG. 4, and the processor 110 calls the program to execute the operations of the above method embodiment to implement each unit shown in FIG. 4.
  • part or all of the above units can also be implemented by embedding on a certain chip of the terminal device in the form of an integrated circuit. And they can be implemented separately or integrated together. That is, the above units can be configured as one or more integrated circuits that implement the above methods, for example: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital singnal processors). , DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuits
  • microprocessors digital singnal processors
  • FPGA field programmable gate arrays
  • Fig. 7 is a schematic structural diagram of a network device provided by an embodiment of the application.
  • the network equipment includes: an antenna 110, a radio frequency device 120, and a baseband device 130.
  • the antenna 110 is connected to the radio frequency device 120.
  • the radio frequency device 120 receives the information sent by the terminal through the antenna 110, and sends the information sent by the terminal device to the baseband device 130 for processing.
  • the baseband device 130 processes the information of the terminal device and sends it to the radio frequency device 120
  • the radio frequency device 120 processes the information of the terminal device and sends it to the terminal device via the antenna 110.
  • the above units are implemented in the form of a processing element scheduler.
  • the baseband device 130 includes a processing element 131 and a storage element 132, and the processing element 131 calls a program stored by the storage element 132 to execute the above method embodiments. method.
  • the baseband device 130 may further include an interface 133 for exchanging information with the radio frequency device 120, and the interface is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the above units may be one or more processing elements configured to implement the above methods. These processing elements are provided on the baseband device 130.
  • the processing elements here may be integrated circuits, such as one or more One ASIC, or, one or more DSP, or, one or more FPGA, etc. These integrated circuits can be integrated together to form a chip.
  • the above modules can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • the baseband device 130 includes an SOC chip for implementing the above method.
  • the processing element 131 and the storage element 132 can be integrated in the chip, and the processing element 131 calls the stored program of the storage element 132 to implement the above methods or the functions of the above units; or, at least one integrated circuit can be integrated in the chip.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above network device includes at least one processing element, a storage element and a communication interface, wherein at least one processing element is used to execute the method provided in the above method embodiment.
  • the processing element can execute part or all of the steps in the above method embodiments in the first way: that is, executing the program stored in the storage element; or in the second way: that is, through the integrated logic circuit of the hardware in the processor element.
  • Some or all of the steps in the above method embodiments are executed in a manner of combining instructions; of course, the methods provided in the above method embodiments may also be executed in combination with the first method and the second manner.
  • the processing element here is the same as the above description, and it can be a general-purpose processor, such as a central processing unit (CPU), or one or more integrated circuits configured to implement the above methods, for example: one or more specific Integrated circuit (application specific integrated circuit, ASIC), or, one or more microprocessors (digital digital processor, DSP), or, one or more field programmable gate array (FPGA), etc.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • DSP digital digital processor
  • FPGA field programmable gate array
  • the storage element can be a memory or a collective term for multiple storage elements.
  • the present application also provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the communication method provided in any of the foregoing embodiments.
  • the program product includes a computer program (ie, an execution instruction), and the computer program is stored in a readable storage medium.
  • At least one processor of the first device can read the computer program from a readable storage medium, and at least one processor executes the computer program to enable the first device to implement the communication methods provided in the foregoing various embodiments.
  • An embodiment of the present application also provides a communication device, including at least one storage element and at least one processing element, the at least one storage element is used to store a program, and when the program is executed, the communication device executes any one of the foregoing implementations.
  • the present application also provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement the communication method provided in any of the foregoing embodiments.
  • the program product includes a computer program (ie, an execution instruction), and the computer program is stored in a readable storage medium.
  • At least one processor of the second device can read the computer program from a readable storage medium, and at least one processor executes the computer program to make the network device implement the communication methods provided in the foregoing various embodiments.
  • An embodiment of the present application also provides a communication device, including at least one storage element and at least one processing element, the at least one storage element is used to store a program, and when the program is executed, the communication device executes any one of the foregoing implementations.
  • a communication device including at least one storage element and at least one processing element, the at least one storage element is used to store a program, and when the program is executed, the communication device executes any one of the foregoing implementations.
  • All or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps of the above-mentioned method embodiments; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, ROM), RAM, flash memory, hard disk, solid state hard disk , Magnetic tape, floppy disk, optical disc, and any combination thereof.

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

Abstract

La présente invention concerne, selon certains modes de réalisation, un procédé et un appareil de communication. Le procédé comprend les étapes suivantes : un premier dispositif reçoit des premières informations envoyées par un second dispositif, les premières informations étant comprises dans des informations de commande de liaison descendante (DCI) et/ou les premières informations étant comprises dans des données planifiées par les DCI ; un contrôle de redondance cyclique (CRC) des DCI est brouillé par un identifiant temporaire de réseau radio à accès aléatoire (RA-RNTI) ; les premières informations comprennent des premières informations d'indication ; le premier dispositif détermine, en fonction des premières informations d'indication, si une première ressource peut être utilisée pour transmettre des informations ; et/ou les premières informations comprennent des secondes informations d'indication ; le premier dispositif détermine, en fonction des secondes informations d'indication, si le second dispositif reçoit bien des secondes informations, les secondes informations comprenant des informations transmises sur une seconde ressource. Selon la présente invention, la consommation d'énergie du premier dispositif peut être réduite et le taux d'utilisation de ressources peut être amélioré.
PCT/CN2019/075264 2019-02-15 2019-02-15 Procédé et appareil de communication WO2020164131A1 (fr)

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