WO2018133102A1 - 一种下行控制信息dci传输的方法及网络设备、用户设备 - Google Patents

一种下行控制信息dci传输的方法及网络设备、用户设备 Download PDF

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Publication number
WO2018133102A1
WO2018133102A1 PCT/CN2017/072215 CN2017072215W WO2018133102A1 WO 2018133102 A1 WO2018133102 A1 WO 2018133102A1 CN 2017072215 W CN2017072215 W CN 2017072215W WO 2018133102 A1 WO2018133102 A1 WO 2018133102A1
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Prior art keywords
information
dci
field
pdsch
indicate
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PCT/CN2017/072215
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English (en)
French (fr)
Inventor
余政
罗超
程型清
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2019539834A priority Critical patent/JP2020504578A/ja
Priority to CN201780084179.5A priority patent/CN110199555B/zh
Priority to PCT/CN2017/072215 priority patent/WO2018133102A1/zh
Priority to KR1020197024197A priority patent/KR20190105083A/ko
Priority to EP17893391.7A priority patent/EP3565343B1/en
Publication of WO2018133102A1 publication Critical patent/WO2018133102A1/zh
Priority to US16/519,318 priority patent/US11229041B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, a network device, and a user equipment for downlink control information DCI transmission.
  • the network usually requires a software upgrade. This software upgrade requires multiple users to receive the same data at the same time.
  • 3GPP 3rd Generation Partnership Project
  • MBMS Multimedia Broadcast Multicast Service
  • the technology for transmitting data by the terminal realizes the resource sharing function and improves the resource utilization.
  • the existing MBMS data can adopt a point-to-multipoint (PTM) transmission method, and the PTM transmission mode uses a Multicast Control Channel (MCCH) and a Multicast Traffic Channel (Multicast Traffic Channel).
  • PTM point-to-multipoint
  • MCCH Multicast Control Channel
  • MTCH Multicast Traffic Channel
  • DCI Downlink Control Information
  • An embodiment of the present invention provides a method for transmitting downlink control information (DCI), a network device, and a user equipment, which implements an indication of changing a configuration information of an MTCH in a DCI by adding a bit in a DCI, thereby improving a control channel.
  • DCI downlink control information
  • the performance of the transmission is a method for transmitting downlink control information (DCI), a network device, and a user equipment, which implements an indication of changing a configuration information of an MTCH in a DCI by adding a bit in a DCI, thereby improving a control channel.
  • an embodiment of the present invention provides a method for downlink control information DCI transmission, including:
  • the network device uses the first DCI format to transmit the DCI.
  • the network device indicates, by using the first wireless network temporary identifier RNTI, that the DCI is used for scheduling the bearer. Multicasting the PDSCH of the traffic channel, and indicating that the first information and the DCI do not indicate the second information in the DCI; or, when the DCI schedules the PDSCH specific to the user equipment UE, the network device indicates by using the second RNTI
  • the DCI is used to schedule a UE-specific PDSCH, and the first information is not indicated in the DCI and the second information is indicated in the DCI.
  • the base station transmits the DCI in the first DCI format, so that the DCI needs to indicate different information and the information that does not need to be indicated, and the number of bits can be increased without increasing the number of bits.
  • the information that needs to be indicated is transmitted, improving the performance of the control channel transmission.
  • the network device when the DCI is scheduled to carry a PDSCH of a random access response message, the network device indicates, by using a third RNTI, that the DCI is a PDSCH for scheduling a random access response message, and Not in DCI The first information is indicated and the second information is not indicated in the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field
  • the DCI When the DCI is scheduled to carry a PDSCH of a multicast traffic channel, the DCI includes the first field and does not include the second field; when the DCI schedules a UE-specific PDSCH, the DCI includes the second field And not including the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field when the first information includes only the third information and the fourth information, the first field includes a third field and a fourth field, where the third field is used to indicate the first The third information is used to indicate the fourth information.
  • the DCI includes a fifth field; when the DCI is scheduled to carry a PDSCH of a multicast traffic channel, the fifth field is used to indicate the first information; or the DCI scheduling The fifth field is used to indicate the second information when the UE is in the PDSCH.
  • the bit of the fifth field is a reserved bit.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset; or the second information is a new data indicating an NDI; or The second information is a transmit power control TPC; or the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • an embodiment of the present invention provides a method for downlink control information DCI transmission, including:
  • the user equipment receives the DCI in a first DCI format; when the cyclic redundancy coded CRC of the received DCI is scrambled by using a first radio network temporary identifier RNTI, the DCI is used to schedule a physical downlink shared channel carrying a multicast traffic channel. a PDSCH, and the first information is not indicated in the DCI and the second information is not indicated in the DCI; when the CRC of the received DCI is scrambled by using a second RNTI, the DCI is used to schedule a PDSCH specific to the user equipment UE. And the first information is not indicated in the DCI and the second information is indicated in the DCI.
  • the user equipment receives the DCI using the first DCI format, so that the DCI is used to call different
  • the information that needs to be indicated in the DCI is different from the information that does not require the indication, and the information requiring the indication can be transmitted without increasing the number of bits, and the performance of the control channel transmission is improved.
  • the method further includes: when the CRC of the received DCI is scrambled by using a third RNTI, where the DCI is used to schedule a PDSCH of a random access response message, and the DCI is not indicated in the DCI.
  • the second information is not indicated in a message and the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field; when the DCI is scheduled to carry a PDSCH of a multicast traffic channel, the DCI includes the first field and does not include the second a field; when the DCI schedules a UE-specific PDSCH, the DCI includes the second field and does not include the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field when the first information includes only the third information and the fourth information, the first field includes a third field and a fourth field, where the third field is used to indicate the first The third information is used to indicate the fourth information.
  • the DCI includes a fifth field
  • the fifth field is used to indicate the first information; or when the DCI is scheduling the UE-specific PDSCH, the fifth field is used to indicate the Or two information; or, when the DCI schedules a PDSCH carrying a random access response message, the bit of the fifth field is a reserved bit.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset; or the second information is a new data indicating an NDI; or The second information is a transmit power control TPC; or the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • the third aspect provides a network device, including a transmission module and an indication module, according to an embodiment of the present invention.
  • the transmission module is configured to transmit DCI by using a first DCI format
  • the indication module is configured to use the first radio network temporary identifier RNTI to indicate that the DCI is a physical downlink shared channel (PDSCH) that carries a multicast service channel, the indication that the DCI is used to schedule a PDSCH for carrying a multicast service channel, and the The first information is indicated in the DCI and the second information is not indicated in the DCI;
  • PDSCH physical downlink shared channel
  • the indication module is further configured to: when the DCI schedules a user equipment UE-specific PDSCH, indicate that the DCI is used to schedule a UE-specific PDSCH by using a second RNTI, and the first information and the DCI are not indicated in the DCI. Indicates the second information.
  • the base station transmits the DCI in the first DCI format, so that the DCI needs to indicate different information and the information that does not need to be indicated, and the number of bits can be increased without increasing the number of bits.
  • the information that needs to be indicated is transmitted, improving the performance of the control channel transmission.
  • the indication module is further configured to: when the DCI schedules a PDSCH carrying a random access response message, indicate, by using a third RNTI, that the DCI is a PDSCH for scheduling a random access response message, And the first information is not indicated in the DCI and the second information is not indicated in the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field
  • the DCI When the DCI is scheduled to carry a PDSCH of a multicast service channel, the DCI includes the first field and does not include the second field;
  • the DCI When the DCI schedules a UE-specific PDSCH, the DCI includes the second field and does not include the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field when the first information includes only the third information and the fourth information, the first field includes a third field and a fourth field, where the third field is used to indicate the first The third information is used to indicate the fourth information.
  • the DCI includes a fifth field
  • the fifth field is used to indicate the first information
  • the fifth field is used to indicate the second information
  • the bits of the fifth field are reserved bits.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset;
  • the second information indicates NDI for new data
  • the second information is a transmit power control TPC;
  • the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • a network device includes a processor and a transceiver in communication with the processor, the processor being configured to perform the network device provided by the first aspect of the present application.
  • a memory may be further included, where the memory is used to store application code that supports the user equipment to perform the above method, and the processor is configured to execute an application stored in the memory.
  • the fourth aspect provides a user equipment, including a receiving module and a determining module, according to an embodiment of the present invention.
  • the receiving module is configured to receive a DCI by using a first DCI format
  • PDSCH physical downlink shared channel
  • the determining module is further configured to: when the CRC of the received DCI is scrambled by using the second RNTI, determine that the DCI is used to schedule a PDSCH specific to the user equipment UE, and the first information and the The second information is indicated in the DCI.
  • the user equipment receives the DCI in the first DCI format, so that the information that needs to be indicated in the DCI is different from the information that does not need to be indicated, and the number of bits can be increased without increasing the number of bits.
  • the transmission needs information indicating that the performance of the control channel transmission is improved.
  • the determining module is further configured to: when the CRC of the received DCI is scrambled by using a third RNTI, determine that the DCI is used to schedule a PDSCH of a random access response message, and The first information is not indicated in the DCI and the second information is not indicated in the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field
  • the DCI When the DCI is scheduled to carry a PDSCH of a multicast service channel, the DCI includes the first field and does not include the second field;
  • the DCI When the DCI schedules a UE-specific PDSCH, the DCI includes the second field and does not include the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field is used to indicate the third information
  • the fourth field is used to indicate the fourth information
  • the DCI includes a fifth field
  • the fifth field is used to indicate the first information
  • the fifth field is used to indicate the second information
  • the bits of the fifth field are reserved bits.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset;
  • the second information indicates NDI for new data
  • the second information is a transmit power control TPC;
  • the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • a user equipment includes a processor and a transceiver in communication with the processor, the processor being configured to perform the user equipment provided by the first aspect of the present application.
  • a memory may be further included, where the memory is used to store application code that supports the user equipment to perform the above method, and the processor is configured to execute an application stored in the memory.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the network device, which includes a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the user equipment, including a program designed to perform the above aspects.
  • the names of the network devices and the user devices are not limited to the devices themselves. In actual implementation, the devices may appear under other names. As long as the functions of the respective devices are similar to the present application, they are within the scope of the claims and their equivalents.
  • the information that needs to be indicated in the DCI is different from the information that does not need to be indicated, and the information that needs the indication can be transmitted without increasing the number of bits, thereby improving the control. Channel transmission performance.
  • FIG. 1 is a schematic diagram of a possible network architecture according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for downlink control information DCI transmission according to an embodiment of the present invention
  • FIG. 3 is a diagram showing an example of a bit position according to an embodiment of the present invention.
  • FIG. 4 is a diagram showing another example of a bit position according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a possible network architecture according to an embodiment of the present invention.
  • the network architecture diagram includes a base station (BS) and a plurality of user equipments (User Equipments, UEs), for example, UE1, UE2, . . . , UE6.
  • the base station and the UE1 to the UE6 form a communication system, and the base station can send a scheduling message to one or more UEs of UE1 to UE6.
  • UE4 to UE6 may also constitute a communication system in which UE5 may transmit scheduling information to one or more UEs in UE4 and UE6.
  • the Multimedia Broadcast Multicast Service is a technology for transmitting data from one data source to a plurality of target mobile terminals, in order to effectively utilize mobile network resources.
  • the existing multicast transmission technology adopts a point-to-multipoint (PTM) transmission mode.
  • PTM point-to-multipoint
  • some configurations of the MCCH are indicated by a system information block (SIB), for example, the SIB20. information.
  • SIB system information block
  • the UE performs MCCH reception according to the configuration of the SIB20. Specifically, the UE first receives a Physical Downlink Control Channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) according to the configuration of the SIB20, where the PDSCH carries the MCCH. After the UE successfully detects the PDCCH, it further detects the data channel carrying the MCCH.
  • PDCH Physical Downlink Control Channel
  • PDSCH physical downlink shared channel
  • the UE After the UE successfully detects the data channel carrying the MCCH, the UE learns the configuration information of the MTCH indicated by the MCCH. Then, the UE detects a control channel that schedules a PDSCH, which carries the MTCH. After the UE successfully detects the control channel, the data channel carrying the MTCH is further detected. Since the MTCH indicates multicast information, the base station performs multicast communication with the UE through the MTCH.
  • the configuration of the MTCH may change, such as whether the configuration of the MTCH changes in the next modification period, and whether the new service starts in the next modification period.
  • an additional bit is added in the downlink control information DCI of the scheduling MTCH to indicate whether the configuration of the MTCH changes in the next modification period, and another bit is additionally added to indicate whether a new service starts in the next modification period.
  • this increases the bit overhead of the DCI and reduces the performance of the control channel transmission.
  • the DCI is transmitted by using the first DCI format.
  • the DCI When the DCI is used to schedule the physical downlink shared channel (PDSCH) carrying the multicast service channel, the DCI is used to indicate that the DCI is used by the first wireless network temporary identifier RNTI. Scheduling a PDSCH carrying a multicast traffic channel, and indicating that the first information and the DCI are not indicating the second information in the DCI; and when the DCI is used to schedule a PDSCH specific to the user equipment UE, indicating by the second RNTI The DCI is used to schedule a UE-specific PDSCH, and the first information is not indicated in the DCI and the second information is indicated in the DCI. By not adding bits in the DCI, an indication of a change in the configuration information of the MTCH is implemented in the DCI, and the performance of the control channel transmission is improved.
  • PDSCH physical downlink shared channel
  • Evolved Packet System EPS
  • Global System of Mobile communication Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wide-band Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Frequency Division Duplex FDD
  • TDD Time Division Duplex
  • the user equipment may include, but is not limited to, a terminal, a mobile station (MS), etc., and may also be a mobile phone (or "cellular" phone), or may be portable. Pocket, handheld, computer built-in or in-vehicle mobile devices (smart bracelets, smart watches, smart glasses, etc.).
  • the network device and the user equipment in the embodiment of the present invention may appear under other names. As long as the functions of the respective devices are similar to the present invention, they are within the scope of the claims and the equivalents thereof.
  • FIG. 2 is a schematic flowchart of a method for transmitting downlink control information DCI according to an embodiment of the present invention.
  • the DCI transmission method in the embodiment of the present invention uses a base station as an example and a user equipment.
  • a base station as an example
  • a user equipment for the joint implementation, please refer to the detailed introduction for the specific process.
  • the base station transmits the DCI in a first DCI format.
  • the first DCI format may be an existing DCI format, for example, the first DCI format is DCI format 6-1A or DCI format 6-1B.
  • the first DCI format is a newly defined DCI format.
  • the first DCI format is DCI format DCI format 6-3A or DCI format 6-3B, or DCI format 7-1A, or DCI format 7-1B. This embodiment of the present invention does not limit this.
  • the DCI in the first DCI format may be used to schedule multiple PDSCHs, for example, the DCI is used to schedule a PDSCH carrying a Multicast Traffic Channel (MTCH); or the DCI is used to schedule a user equipment-specific PDSCH; Alternatively, the DCI is used to schedule a PDSCH of a random access response message.
  • the base station may be indicated by a different radio network temporary identifier (RNTI). Specifically, the base station uses different RNTIs to scramble DCI cyclic redundancy check (CRC) to implement scheduling different PDSCHs.
  • RNTI radio network temporary identifier
  • the base station may indicate, by using the first RNTI, that the DCI is used to schedule the PDSCH carrying the MTCH, in the case that the The first information is indicated in the DCI and the second information is not indicated.
  • the base station may indicate, by using the second RNTI, that the DCI is used to schedule a PDSCH carrying the MTCH, in this case, indicating in the DCI.
  • the second information does not indicate the first information.
  • the base station may indicate, by using a third RNTI, that the DCI is used to schedule a PDSCH that carries an MTCH, in this case, the DCI.
  • the first information is not indicated and the second information is not indicated.
  • the first information is information used to indicate whether the MTCH has changed, for example, the first information is used to indicate whether the configuration of the MTCH changes in the next modification period, and whether the MTCH is in the start of a new service in the next modification period. At least one.
  • the number of bits occupied by the first information in the DCI may be one or two.
  • the size of the first information is 1 bit, and the first information is used to indicate whether the configuration of the MTCH changes in the next modification period. Specifically, when the bit status of the first information is 0, the MTCH is indicated. The configuration does not change in the next modification period. When the bit status of the first information is 1, it indicates that the configuration of the MTCH changes in the next modification period. Alternatively, when the bit status of the first information is 1, the configuration indicating the MTCH does not change in the next modification period, and when the bit status of the first information is 0, the configuration indicating the MTCH changes in the next modification period.
  • the size of the first information is 1 bit
  • the first information is used to indicate whether the MTCH starts a new service in the next modification period. Specifically, when the bit status of the first information is 0, the MTCH is instructed to start a new service in the next modification period, and when the bit status of the first information is 1, it indicates that the MTCH does not start in the next modification period. Alternatively, when the bit status of the first information is 1, it indicates that the MTCH starts in the next modification period, and when the bit status of the first information is 0, it indicates that the MTCH does not start in the next modification period.
  • the size of the first information is 2 bits
  • the first information includes only the third information and the fourth information
  • the third information size is 1 bit
  • the fourth information size is 1 bit.
  • the third information indicates whether the configuration of the MTCH has changed in the next modification period.
  • the fourth information indicates whether the MTCH starts a new service in the next modification cycle. For the third information, when the bit status of the third information is 0, the configuration indicating the MTCH does not change in the next modification period, and when the bit status of the third information is 1, the configuration indicating the MTCH changes in the next modification period.
  • the configuration indicating the MTCH when the bit status of the third information is 1, the configuration indicating the MTCH does not change in the next modification period, and when the bit status of the third information is 0, the configuration indicating the MTCH changes in the next modification period.
  • the bit status of the fourth information when the bit status of the fourth information is 0, it indicates that the MTCH starts in the next modification period, and when the bit status of the fourth information is 1, it indicates that the MTCH does not start in the next modification period.
  • the bit status of the fourth information when the bit status of the fourth information is 1, it indicates that the MTCH starts in the next modification period, and when the bit status of the fourth information is 0, it indicates that the MTCH does not start in the next modification period.
  • the size of the first information is 2 bits
  • the 2-bit joint of the first information indicates whether the configuration of the MTCH changes in the next modification period, and whether the MTCH is new in the next modification period.
  • two bits correspond to the state of 4, such as 00, 01, 10, and 11, and the four states respectively correspond to different information, as shown in Table 1 below, and a possible correspondence is given.
  • Other possible correspondences are not limited in the embodiment of the present invention.
  • the information that needs to be indicated and the information that does not need to be indicated in the DCI are determined by the information that is not indicated.
  • the number of bits that can also be used in the DCI, and the corresponding number of bits is added to indicate the information that needs to be indicated, so that the information that needs to be indicated can be transmitted without increasing the number of bits, and the performance of the control channel transmission is improved.
  • the second information that the DCI does not need to indicate may include but is not limited to a hybrid automatic repeat request-agreement resource offset (HARQ-ACK resource offset). Any one of New Data indication (NDI), Transmit Power Control (TPC), and HARQ process number, where HARQ is automatic hybrid retransmission Request (Hybrid Automatic Retransmission Request). See the analysis below for details.
  • NDI New Data indication
  • TPC Transmit Power Control
  • HARQ process number Hybrid Automatic Retransmission Request
  • the DCI may increase the indication first information by not indicating the second information. Further, in the case where no bit is added in the DCI, an instruction to change the configuration information of the MTCH is implemented in the DCI, and the performance of the control channel transmission is improved.
  • the UE does not need to indicate the first information, and the UE needs to respond to the received PDSCH, so the base station needs to be in the DCI.
  • the DCI contains information indicating the HARQ-ACK resource offset, such that the DCI can still indicate the second information that needs to be acknowledged.
  • the DCI may increase the indication first information by not indicating the second information. Further, in the case where no bit is added in the DCI, an instruction to change the configuration information of the MTCH is implemented in the DCI, and the performance of the control channel transmission is improved.
  • the DCI is used to schedule the user equipment-specific PDSCH, since the UE does not schedule the MTCH, the DCI does not need to indicate the first information, and the base station needs to indicate whether the transmitted PDSCH is new or retransmitted, so the base station Information indicating the NDI needs to be included in the DCI.
  • the DCI may increase the indication first information by not indicating the second information. Further, in the case where no bit is added in the DCI, an instruction to change the configuration information of the MTCH is implemented in the DCI, and the performance of the control channel transmission is improved. If the DCI is used to schedule the user equipment-specific PDSCH, the UE does not need to indicate the first information, and the UE needs to respond to the received PDSCH, so the base station needs to be in the DCI.
  • the DCI contains information indicating the TPC.
  • the DCI may increase the indication first information by not indicating the second information. Further, in the case where no bit is added in the DCI, an instruction to change the configuration information of the MTCH is implemented in the DCI, and the performance of the control channel transmission is improved.
  • the UE does not need to indicate the first information, and the UE needs to perform response feedback and HARQ combining on the received PDSCH, so the base station needs to perform the response feedback and HARQ combining on the received PDSCH.
  • Information indicating the HARQ PROCESS NUMBER needs to be included in the DCI.
  • the DCI may be indicated by a different field, where the first field is used to indicate the first information, and the second Field is used to indicate the number Two information. If the DCI is used to schedule a PDSCH that carries an MTCH, the DCI includes the first field and does not include the second field; when the DCI is used to schedule a UE-specific PDSCH, the DCI includes the second field. And does not include the first field.
  • the first field includes a bit position in the DCI and a bit position in the DCI of the bit included in the second field.
  • the first field or the second field is described by taking the case where the size of the first information and the second information are both 2 bits.
  • the bit positions occupied in the DCI are the 16th bit position and the 17th bit position. If the DCI is used to schedule the PDSCH carrying the MTCH, the 16th bit position and the 17th bit position in the DCI are the bits corresponding to the first information; if the DCI is used to schedule the UE-specific PDSCH, in the DCI
  • the 16th bit position and the 17th bit position are bits corresponding to the second information.
  • the UE can be facilitated to interpret the first information in the DCI and
  • the second information improves the efficiency of interpretation.
  • the first information or the second information may be indicated by the same field in the DCI, and specifically, the DCI includes a fifth field.
  • the fifth field is used to indicate the first information when the DCI is used to schedule a PDSCH that carries a multicast traffic channel; or the fifth field is used when the DCI is used to schedule a UE-specific PDSCH.
  • the second information is indicated; or, when the DCI is used to schedule a PDSCH that carries a random access response message, the bit of the fifth field is a reserved bit.
  • FIG. 4 is another example of a bit position according to an embodiment of the present invention.
  • the case where the size of the first information and the second information are both 2 bits is
  • the bit position occupied by the fifth field in the DCI is the 16th bit position and the 17th bit position.
  • the 16th bit position and the 17th bit position in the DCI are the bits corresponding to the first information; or, if the DCI is used to schedule the UE-specific PDSCH, the 16th bit position in the DCI And the 17th bit position is a bit corresponding to the second information; or, if the DCI is used to schedule the PDSCH carrying the random access response message, the 16th bit position and the 17th bit position in the DCI are reserved bits.
  • the field occupied by the first information is a field indicating the second information, so that the bit overhead of the DCI is avoided, the performance of the DCI transmission is improved, and the resource utilization efficiency is optimized.
  • the user equipment receives the DCI in a first DCI format.
  • the DCI format used by the user equipment to receive the DCI is the same as the format used by the base station to transmit the DCI.
  • the first DCI format is not limited in the embodiment of the present invention.
  • the user equipment may determine the PDSCH invoked by the DCI by determining an RNTI used for scrambling a Cyclic Redundancy Check (CRC) of the received DCI.
  • CRC Cyclic Redundancy Check
  • step 105 if the user equipment determines that the CRC of the received DCI is scrambled by using a first RNTI, the DCI is used to schedule a bearer MTCH.
  • the PDSCH, and the first information is indicated in the DCI and the second information is not indicated in the DCI.
  • step 106 if the user equipment determines that the CRC of the received DCI is scrambled by using a second RNTI, the DCI is used to schedule user equipment UE specific The PDSCH, and the first information is not indicated in the DCI and the second information is indicated in the DCI.
  • the DCI is used to schedule a PDSCH of the random access response message, and the first information is not indicated in the DCI and the second information is not indicated in the DCI.
  • the user equipment may include the field included in the DCI corresponding to the PDSCH, and the included field indication.
  • the information and the bit position of the bits contained in the field in the DCI determine the information indicated by the DCI.
  • the content introduced on the base station side may be referred to, and details are not described herein again.
  • the size of the first information and the second information are both 2 bits, and the bit position occupied by the fifth field in the DCI is the 16th bit position and the first 17-bit position.
  • the user equipment may determine that the first information is indicated in the 16th bit position and the 17th bit position in the DCI, and from the DCI The 16th bit position and the 17th bit position acquire a bit value, thereby determining the indicated first information;
  • the user equipment may determine the DCI Determining the second information at the 16th bit position and the 17th bit position, and obtaining the bit value from the 16th bit position and the 17th bit position of the DCI, thereby determining the indicated second information; when the user equipment When determining that the DCI is used to schedule a PDSCH of a random access response
  • the multicast service channel may be a single-carrier multicast control channel (SC-MCCH), which is not limited in this embodiment of the present invention.
  • SC-MCCH single-carrier multicast control channel
  • the base station uses the first DCI format to transmit the DCI.
  • the first RNTI indicates that the DCI is used to schedule the PDSCH carrying the MTCH, and the first information and the DCI are indicated in the DCI.
  • the DCI is used to schedule the user equipment UE-specific PDSCH
  • the DCI is used to schedule the UE-specific PDSCH by using the second RNTI, and the first information is not indicated in the DCI and the second information is indicated in the DCI. In this way, for the case where the DCI is used to invoke different PDSCHs, the information that needs to be indicated in the DCI is different from the information that does not need to be indicated.
  • the number of bits that can be used in the DCI is determined by the information that is not indicated, and the corresponding number of bits is used.
  • the information indicating the indication is indicated, so that the information requiring the indication can be transmitted without increasing the number of bits, and the performance of the control channel transmission is improved.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device in the embodiment of the present invention may be the network device provided in any of the embodiments shown in FIG. 2 to FIG.
  • the network device 1 of the embodiment of the present invention may include: a transmission module 11 and an indication module 12.
  • the transmission module 11 is configured to transmit DCI in a first DCI format
  • the indication module 12 indicates, by using the first radio network temporary identifier RNTI, that the DCI is a PDSCH for scheduling a bearer multicast service channel, and Instructing the first information in the DCI and not indicating the second information in the DCI;
  • the indication module 12 is further configured to: when the DCI schedules a PDSCH specific to the user equipment UE, pass the second RNTI The DCI is indicated to be used for scheduling a UE-specific PDSCH, and the first information is not indicated in the DCI and the second information is indicated in the DCI.
  • the indication module 12 is further configured to: when the DCI schedules a PDSCH carrying a random access response message, indicate, by using a third RNTI, that the DCI is a PDSCH for scheduling a random access response message. And the first information is not indicated in the DCI and the second information is not indicated in the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field
  • the DCI When the DCI is scheduled to carry a PDSCH of a multicast service channel, the DCI includes the first field and does not include the second field;
  • the DCI When the DCI schedules a UE-specific PDSCH, the DCI includes the second field and does not include the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field when the first information includes only the third information and the fourth information, the first field includes a third field and a fourth field, where the third field is used to indicate the first The third information is used to indicate the fourth information.
  • the DCI includes a fifth field
  • the fifth field is used to indicate the first information
  • the fifth field is used to indicate the second information
  • the bits of the fifth field are reserved bits.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset;
  • the second information indicates NDI for new data
  • the second information is a transmit power control TPC;
  • the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device 600 shown in FIG. 6 includes a processor 601 and a transceiver 602.
  • the processor 601 and the transceiver 602 are communicatively coupled, for example, via a bus.
  • the network device 600 may further include a memory 603.
  • the transceiver 602 is at least one, and the structure of the network device 600 does not constitute a limitation on the embodiment of the present invention.
  • the processor 601 is used in the embodiment of the present invention to implement the function of the indication module 12 shown in FIG. 5.
  • the transceiver 602 is applied to the embodiment of the present invention for implementing the functions of the transmission module 11 shown in FIG. 5.
  • the transceiver 602 includes a receiver and a transmitter.
  • the processor 601 can be a central processing unit (CPU), a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), and a field programmable logic gate array (Field). - Programmable Gate Array, FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. Processor 601 can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the memory 603 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • disc storage device including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 603 is configured to store application code for executing the solution of the present application, and is controlled by the processor 601 for execution.
  • the processor 601 is configured to execute the application code stored in the memory 603 to implement the actions of the network device provided by any of the embodiments shown in FIG. 2 to FIG.
  • Also provided in the embodiment of the present invention is a computer storage medium for storing computer software instructions for use in the network device, which includes a program designed to perform the above aspects for a network device.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment in the embodiment of the present invention may be the user equipment provided in any of the embodiments shown in FIG. 2 to FIG.
  • the user equipment 2 of the embodiment of the present invention may include: a receiving module 21 and a determining module 22.
  • the receiving module 21 is configured to receive DCI in a first DCI format
  • the determining module 22 is configured to: when the cyclic redundancy coded CRC of the received DCI is scrambled by using the first radio network temporary identifier RNTI, determine that the DCI is used to schedule a physical downlink shared channel PDSCH that carries a multicast traffic channel, And indicating, in the DCI, that the first information and the DCI do not indicate the second information;
  • the determining module 22 is further configured to: when the CRC of the received DCI is scrambled by using the second RNTI, determine that the DCI is used to schedule a PDSCH specific to the user equipment UE, and the first information and the location are not indicated in the DCI.
  • the second information is indicated in the DCI.
  • the determining module 22 is further configured to use the third CRC of the received DCI.
  • the RNTI is scrambled, it is determined that the DCI is used to schedule a PDSCH of a random access response message, and the first information is not indicated in the DCI and the second information is not indicated in the DCI.
  • the size of the first information is 1 bit, and the first information is used to indicate whether a configuration of the multicast traffic channel changes in a next modification period; or
  • the size of the first information is 1 bit, and the first information is used to indicate whether a new service channel starts in a next modification period of the multicast service channel; or
  • the first information includes only the third information and the fourth information, the third information size is 1 bit, the fourth information size is 1 bit, and the third information is used to indicate the multicast traffic channel. Whether the configuration is changed in the next modification period, where the fourth information is used to indicate whether the new service channel starts in the next modification period; or
  • the size of the first information is 2 bits, and 2 bits of the first information are used to jointly indicate whether the configuration of the multicast traffic channel changes in a next modification period, and the multicast traffic channel is in a next modification period. Whether a new business begins.
  • the DCI includes a first field or a second field
  • the DCI When the DCI is scheduled to carry a PDSCH of a multicast service channel, the DCI includes the first field and does not include the second field;
  • the DCI When the DCI schedules a UE-specific PDSCH, the DCI includes the second field and does not include the first field;
  • the first field is used to indicate the first information
  • the second field is used to indicate the second information
  • the first field contains a bit whose bit position in the DCI is the same as the bit position of the bit included in the second field in the DCI.
  • the first field when the first information includes only the third information and the fourth information, the first field includes a third field and a fourth field, where the third field is used to indicate the first The third information is used to indicate the fourth information.
  • the DCI includes a fifth field
  • the fifth field is used to indicate the first information
  • the fifth field is used to indicate the second information
  • the bits of the fifth field are reserved bits.
  • the second information is a hybrid automatic repeat request-acknowledgement resource offset HARQ-ACK resource offset;
  • the second information indicates NDI for new data
  • the second information is a transmit power control TPC;
  • the second information is a hybrid automatic repeat request process number HARQ process number.
  • the fifth field is a field for indicating the second information.
  • the user equipment in the embodiment shown in FIG. 7 can be implemented by the user equipment shown in FIG.
  • FIG. 8 a schematic structural diagram of a user equipment is provided in the embodiment of the present invention.
  • the user equipment 800 shown in FIG. 8 includes a processor 801 and a transceiver 802.
  • the processor 801 and the transceiver 802 are communicatively coupled, for example, via a bus.
  • the user equipment 800 may also include a memory 803.
  • the transceiver 802 is at least one, and the structure of the user equipment 800 does not constitute a limitation on the embodiment of the present invention.
  • the processor 801 is used in the embodiment of the present invention to implement the function of the determining module 22 shown in FIG. 7.
  • the transceiver 802 is used in the embodiment of the present invention to implement the functions of the receiving module 21 shown in FIG.
  • the transceiver 802 includes a receiver and a transmitter.
  • Processor 801 can be a CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. Processor 801 can also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the memory 803 may be a ROM or other type of static storage device that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or EEPROM, CD-ROM or other optical disk storage, optical disk storage. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory 803 is configured to store application code for executing the solution of the present application, and is controlled by the processor 801 for execution.
  • the processor 801 is configured to execute the application code stored in the memory 803 to implement the actions of the user equipment provided by any of the embodiments shown in FIG. 2 to FIG.
  • Also provided in the embodiment of the present invention is a computer storage medium for storing computer software instructions for use by the user equipment, including a program designed to perform the above aspects for the user equipment.
  • the program can be stored in a computer readable storage medium, when the program is executed
  • the flow of the method embodiments as described above may be included.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM or a random access memory RAM, a magnetic disk, or an optical disk.
  • embodiments of the present application can be provided as a method, apparatus (device), or computer program product. Accordingly, the present application may employ an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例公开一种下行控制信息DCI传输的方法及网络设备、用户设备,其中方法包括如下步骤:网络设备采用第一DCI格式传输DCI;所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,所述网络设备通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;所述DCI调度用户设备UE特定的PDSCH时,所述网络设备通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。采用本申请,通过在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。

Description

一种下行控制信息DCI传输的方法及网络设备、用户设备 技术领域
本申请涉及通信技术领域,尤其涉及一种下行控制信息DCI传输的方法及网络设备、用户设备。
背景技术
随着物联网技术的快速发展,网络中部署了大量的机器类通信设备。网络通常需要软件升级。这种软件升级要求多个用户能够同时接收相同的数据。为了有效利用移动网络资源,第三代合作伙伴计划(3GPP,3rd Generation Partnership Project)提出了多媒体广播多播业务(Multimedia Broadcast Multicast Service,MBMS),MBMS是一种从一个数据源向多个目标移动终端传送数据的技术,实现了资源共享功能并提高了资源利用率。现有的MBMS数据可以采用点对多点(point to multipoint,PTM)的传输方式,而PTM的传输方式采用了多播控制信道(Multicast Control Channel,MCCH)和多播业务信道(Multicast Traffic Channel,MTCH)。实际通信中,对于调度MTCH时,需要增加MTCH的配置在下一个修改周期是否发生改变的指示信息,以及在下一个修改周期是否新业务(new service)开始的指示信息。在现有的技术方案中,是通过在下行控制信息(Downlink Control Information,DCI)中增加两个比特来实现的,具体是1个比特用于指示MTCH的配置在下一个修改周期是否发生改变;另1个比特用于指示MTCH在下一个修改周期是否有新业务开始,然而这样增加了DCI的比特开销,降低了控制信道传输的性能。
发明内容
本发明实施例提供一种下行控制信息DCI传输的方法及网络设备、用户设备,通过在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。
第一方面,本发明实施例提供了一种下行控制信息DCI传输的方法,包括:
网络设备采用第一DCI格式传输DCI;其中,所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,所述网络设备通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;或者,所述DCI调度用户设备UE特定的PDSCH时,所述网络设备通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在第一方面中,基站采用第一DCI格式传输DCI,这样对于DCI用于调用不同PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
在一种可能的实施例中,所述DCI调度承载随机接入响应消息的PDSCH时,所述网络设备通过第三RNTI指示所述DCI是用于调度随机接入响应消息的PDSCH,且所述DCI中不 指示第一信息和所述DCI中不指示第二信息。
在一种可能的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一种可能的实施例中,所述DCI包括第一字段或第二字段;
所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一种可能的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一种可能的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一种可能的实施例中,所述DCI包括第五字段;所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一种可能的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,所述第二信息为新数据指示NDI;或者,所述第二信息为发射功率控制TPC;或者,所述第二信息是混合自动重发请求进程号HARQ process number。
在一种可能的实施例中,所述第五字段是用于指示所述第二信息的字段。
第二方面,本发明实施例提供了一种下行控制信息DCI传输的方法,包括:
用户设备采用第一DCI格式接收DCI;所述接收到的DCI的循环冗余编码CRC采用第一无线网络临时标识RNTI加扰时,所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;所述接收到的DCI的CRC采用第二RNTI加扰时,所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在第二方面中,用户设备采用第一DCI格式接收DCI,这样对于DCI用于调用不同 PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
在一种可能的实施例中,还包括:所述接收到的DCI的CRC采用第三RNTI加扰时,所述DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
在一种可能的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一种可能的实施例中,所述DCI包括第一字段或第二字段;所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一种可能的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一种可能的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一种可能的实施例中,所述DCI包括第五字段;
所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一种可能的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,所述第二信息为新数据指示NDI;或者,所述第二信息为发射功率控制TPC;或者,所述第二信息是混合自动重发请求进程号HARQ process number。
在一种可能的实施例中,所述第五字段是用于指示所述第二信息的字段。
第三方面,为本发明实施例提供了一种网络设备,包括传输模块和指示模块。
所述传输模块用于采用第一DCI格式传输DCI;
所述指示模块用于所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
所述指示模块还用于所述DCI调度用户设备UE特定的PDSCH时,通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在第三方面中,基站采用第一DCI格式传输DCI,这样对于DCI用于调用不同PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
在一个可选的实施例中,所述指示模块还用于所述DCI调度承载随机接入响应消息的PDSCH时,通过第三RNTI指示所述DCI是用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
在一个可选的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一个可选的实施例中,所述DCI包括第一字段或第二字段;
所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一个可选的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一个可选的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一个可选的实施例中,所述DCI包括第五字段;
所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一个可选的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
所述第二信息为新数据指示NDI;或者,
所述第二信息为发射功率控制TPC;或者,
所述第二信息是混合自动重发请求进程号HARQ process number。
在一个可选的实施例中,所述第五字段是用于指示所述第二信息的字段。
在一种可能的设计中,一种网络设备的结构中包括处理器和收发器,所述收发器与所述处理器通信连接,所述处理器用于执行本申请第一方面提供的网络设备。可选的,还可以包括存储器,所述存储器用于存储支持用户设备执行上述方法的应用程序代码,所述处理器被配置为用于执行所述存储器中存储的应用程序。
第四方面,为本发明实施例提供了一种用户设备,包括接收模块和确定模块。
所述接收模块用于采用第一DCI格式接收DCI;
所述确定模块用于所述接收到的DCI的循环冗余编码CRC采用第一无线网络临时标识RNTI加扰时,确定所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
所述确定模块还用于所述接收到的DCI的CRC采用第二RNTI加扰时,确定所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在第四方面中,用户设备采用第一DCI格式接收DCI,这样对于DCI用于调用不同PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
在一个可选的实施例中,所述确定模块还用于所述接收到的DCI的CRC采用第三RNTI加扰时,确定所述DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
在一个可选的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一个可选的实施例中,所述DCI包括第一字段或第二字段;
所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一个可选的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一个可选的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段 包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一个可选的实施例中,所述DCI包括第五字段;
所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一个可选的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
所述第二信息为新数据指示NDI;或者,
所述第二信息为发射功率控制TPC;或者,
所述第二信息是混合自动重发请求进程号HARQ process number。
在一个可选的实施例中,所述第五字段是用于指示所述第二信息的字段。
在一种可能的设计中,一种用户设备的结构中包括处理器和收发器,所述收发器与所述处理器通信连接,所述处理器用于执行本申请第一方面提供的用户设备。可选的,还可以包括存储器,所述存储器用于存储支持用户设备执行上述方法的应用程序代码,所述处理器被配置为用于执行所述存储器中存储的应用程序。
第五方面,本发明实施例提供了一种计算机存储介质,用于储存为上述网络设备所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
第六方面,本发明实施例提供了一种计算机存储介质,用于储存为上述用户设备所用的计算机软件指令,其包含用于执行上述方面所设计的程序。
本发明实施例中,网络设备、用户设备的名字对设备本身不构成限定,在实际实现中,这些设备可以以其他名称出现。只要各个设备的功能和本申请类似,属于本申请权利要求及其等同技术的范围之内。
在本发明实施例中,对于DCI用于调用不同PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
附图说明
为了更清楚地说明本发明实施例或背景技术中的技术方案,下面将对本发明实施例或背景技术中所需要使用的附图进行说明。
图1是为本发明实施例提供的一种可能的网络架构图;
图2是为本发明实施例提供的一种下行控制信息DCI传输的方法的流程示意图;
图3是为本发明实施例提供的一种比特位置示例图;
图4是为本发明实施例提供的另一种比特位置示例图;
图5是为本发明实施例提供的一种网络设备的结构示意图;
图6是为本发明实施例提供的另一种网络设备的结构示意图;
图7是为本发明实施例提供的一种用户设备的结构示意图;
图8是为本发明实施例提供的另一种用户设备的结构示意图。
具体实施方式
下面结合本发明实施例中的附图对本发明实施例进行描述。
请参见图1,为本发明实施例提供的一种可能的网络架构图。如图1所示,该网络架构图包括基站(Base station,BS)和多个用户设备(User Equipment,UE),例如,UE1、UE2、……、UE6。基站和UE1~UE6组成一个通信系统,基站可以向UE1~UE6中的一个或多个UE发送调度消息。此外,UE4~UE6也可以组成一个通信系统,在该通信系统中,UE5可以发送调度信息给UE4和UE6中的一个或多个UE。
其中,多播传输技术(Multimedia Broadcast Multicast Service,MBMS)是将一个数据源向多个目标移动终端传送数据的技术,是为了有效利用移动网络资源。
现有的多播传输技术采用点对多点(point to multipoint,PTM)的传输方式,在现有的PTM中,通过系统信息块(system information block,SIB),例如,SIB20指示MCCH的一些配置信息。UE根据SIB20的配置进行MCCH的接收。具体的,UE根据SIB20的配置先接收调度物理下行共享信道(Physical Downlink Share Channel,PDSCH)的物理下行控制信道(Physical Downlink Control Channel,PDCCH),该PDSCH承载了MCCH。UE成功检测PDCCH后,进而检测承载了MCCH的数据信道。当UE成功检测了承载了MCCH的数据信道后,UE获知了MCCH指示的MTCH的配置信息。然后,UE检测调度PDSCH的控制信道,该PDSCH承载了MTCH。当UE成功检测控制信道后,进而检测承载MTCH的数据信道。因为MTCH指示了多播信息,所以基站通过MTCH和UE进行组播通信。
实际通信中,MTCH的配置可能会发生改变,例如MTCH的配置在下一个修改周期是否发生改变,以及下一个修改周期是否新业务开始等。现有技术中,是通过在调度MTCH的下行控制信息DCI中额外增加一个比特来指示MTCH的配置在下一个修改周期是否发生改变,并额外增加另一个比特来指示在下一个修改周期是否新业务开始。然而这样增加了DCI的比特开销,降低了控制信道传输的性能。而在本发明实施例中,采用第一DCI格式传输DCI;所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH时,通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;所述DCI用于调度用户设备UE特定的PDSCH时,通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。通过在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。
本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
本发明实施例,可应用于其它需要生成DCI传输的通信系统中,例如:演进分组系统(Evolved Packet System,EPS)、全球移动通讯(Global System of Mobile communication, GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wide-band Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)等。
在本发明实施例中,用户设备可以包括但不限定于终端(Terminal)、移动台(Mobile Station,MS)等,还可以是移动电话(或称为“蜂窝”电话),还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置(智能手环、智能手表、智能眼镜等)。
基于图1所示的网络架构,本发明实施例中的网络设备、用户设备可以以其他名称出现。只要各个设备的功能和本发明类似,属于本发明权利要求及其等同技术的范围之内。
请参见图2,为本发明实施例提供了一种下行控制信息DCI传输的方法的流程示意图,如图2所示,本发明实施例中的DCI传输方法是网络设备以基站为例以及用户设备共同执行的,具体过程请参见一下详细介绍。
101,基站采用第一DCI格式传输DCI。
具体的,所述第一DCI格式可以是现有的DCI格式,例如,第一DCI格式是DCI format6-1A或DCI format 6-1B。或者,第一DCI格式是新定义的DCI格式。如,第一DCI格式是DCI format DCI format 6-3A或DCI format 6-3B,或DCI format7-1A,或DCI format 7-1B。本发明实施例对此不做限定。
进一步的,采用第一DCI格式的DCI可以用于调度多种PDSCH,例如所述DCI用于调度承载多播业务信道(MTCH)的PDSCH;或者,所述DCI用于调度用户设备特定的PDSCH;或者,所述DCI用于调度随机接入响应消息的PDSCH。对于所述DCI用于调度不同的PDSCH,所述基站可以通过不同的无线网络临时标识(radio network temporary identifier,RNTI)来指示。具体是所述基站采用不同的RNTI对DCI的循环冗余校验(Cyclic Redundancy Check,CRC)进行加扰,以实现调度不同的PDSCH。
举例来说,如步骤103,若所述DCI用于调度承载MTCH的PDSCH时,所述基站可以通过第一RNTI来指示所述DCI用于调度承载MTCH的PDSCH,在这一情况下,所述DCI中指示第一信息且不指示第二信息。如步骤104,若所述DCI用于调度用户设备特定的PDSCH时,所述基站可以通过第二RNTI来指示所述DCI用于调度承载MTCH的PDSCH,在这一情况下,所述DCI中指示第二信息且不指示第一信息。
可选的,若所述DCI用于调度随机接入响应消息的PDSCH时,所述基站可以通过第三RNTI来指示所述DCI用于调度承载MTCH的PDSCH,在这一情况下,所述DCI中不指示第一信息且不指示第二信息。
所述第一信息是用于指示所述MTCH是否发生改变的信息,例如,所述第一信息用于指示MTCH的配置在下一个修改周期是否发生改变、以及MTCH在下一个修改周期是否新业务开始中至少一项。可选的,所述第一信息的在DCI中所占用的比特数可以为1个也可以为2个。
在一种可能的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示MTCH的配置在下一个修改周期是否发生改变。具体地,第一信息的比特状态为0时,指示MTCH 的配置在下一个修改周期未发生改变,第一信息的比特状态为1时,指示MTCH的配置在下一个修改周期发生改变。或者,第一信息的比特状态为1时,指示MTCH的配置在下一个修改周期未发生改变,第一信息的比特状态为0时,指示MTCH的配置在下一个修改周期发生改变。
在一种可能的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示MTCH在下一个修改周期是否新业务开始。具体地,第一信息的比特状态为0时,指示MTCH在下一个修改周期新业务开始,第一信息的比特状态为1时,指示MTCH在下一个修改周期新业务未开始。或者,第一信息的比特状态为1时,指示MTCH在下一个修改周期新业务开始,第一信息的比特状态为0时,指示MTCH在下一个修改周期新业务未开始。
在一种可能的实施例中,所述第一信息的大小是2比特,第一信息只包括第三信息和第四信息,第三信息大小是1比特,第四信息大小是1比特。第三信息指示了MTCH的配置在下一个修改周期是否发生改变。第四信息指示了MTCH在下一个修改周期是否新业务开始。对于第三信息而言,第三信息的比特状态为0时,指示MTCH的配置在下一个修改周期未发生改变,第三信息的比特状态为1时,指示MTCH的配置在下一个修改周期发生改变。或者,第三信息的比特状态为1时,指示MTCH的配置在下一个修改周期未发生改变,第三信息的比特状态为0时,指示MTCH的配置在下一个修改周期发生改变。对于第四信息而言,第四信息的比特状态为0时,指示MTCH在下一个修改周期新业务开始,第四信息的比特状态为1时,指示MTCH在下一个修改周期新业务未开始。或者,第四信息的比特状态为1时,指示MTCH在下一个修改周期新业务开始,第四信息的比特状态为0时,指示MTCH在下一个修改周期新业务未开始。
在一种可能的实施例中,所述第一信息的大小是2比特,所述第一信息的2比特联合指示MTCH的配置在下一个修改周期是否发生改变,和MTCH在下一个修改周期是否新业务开始。举例来说,2个比特对应4中状态,如00、01、10、11,通过这四种状态来分别对应不同的信息,如下表1所示,给出了一种可能的对应关系,对于其他可能的对应关系,本发明实施例不做限定。
Figure PCTCN2017072215-appb-000001
进一步的,需要说明的是,在本发明实例中,对于所述DCI用于调用不同PDSCH的情况,所述DCI中需要指示的信息和不需要指示的信息,通过不指示的信息来确定所述DCI中还可以被用的比特数量,并增加相应的比特数来指示需要指示的信息,这样能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
基于这样的考虑,对于所述DCI中指示第一信息的情况,所述DCI无需指示的第二信息可以包括但不限定于混合自动重发请求-肯定应答资源偏移(HARQ-ACK resource offset)、新数据指示(New data indication,NDI)、发射功率控制(Transmit Power Control,TPC)、混合自动重发请求进程号(HARQ process number)中的任一项,其中,HARQ是为混合自动重发请求(Hybrid Automatic Retransmission Request)。具体请参见以下分析。
在一种可能的实施例中,对于第二信息为HARQ-ACK resource offset的情况,若所述DCI用于调度承载MTCH的PDSCH时,由于UE不需要对接收的该PDSCH进行应答反馈,因此基站不需要在该DCI中指示HARQ-ACK resource offset。因此所述DCI可以通过不指示第二信息的方式,增加指示第一信息。进而实现了在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。而若所述DCI用于调度用户设备特定的PDSCH时,由于UE并不是调度MTCH,因此该DCI中不需要指示第一信息,且UE需要对接收的该PDSCH进行应答反馈,因此基站需要在该DCI中包含指示HARQ-ACK resource offset的信息,这样所述DCI依旧可以指示需要应答反馈的第二信息。
在一种可能的实施例中,对于第二信息为NDI的情况,若所述DCI用于调度承载MTCH的PDSCH时,由于基站不需要指示该PDSCH是新传还是重传,因此基站不需要在该DCI中指示NDI。因此所述DCI可以通过不指示第二信息的方式,增加指示第一信息。进而实现了在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。而若所述DCI用于调度用户设备特定的PDSCH时,由于UE并不是调度MTCH,因此该DCI中不需要指示第一信息,且基站需要对发送的PDSCH指示是新传还是重传,因此基站需要在该DCI中包含指示NDI的信息。
在一种可能的实施例中,对于第二信息为TPC的情况,若所述DCI用于调度承载MTCH的PDSCH时,由于UE不需要对接收的该PDSCH进行应答反馈,因此基站不需要在该DCI中指示PUCCH发射功率控制。因此所述DCI可以通过不指示第二信息的方式,增加指示第一信息。进而实现了在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。而若所述DCI用于调度用户设备特定的PDSCH时,由于UE并不是调度MTCH,因此该DCI中不需要指示第一信息,且UE需要对接收的该PDSCH进行应答反馈,因此基站需要在该DCI中包含指示TPC的信息。
在一种可能的实施例中,对于第二信息为HARQ PROCESS NUMBER的情况,若所述DCI用于调度承载MTCH的PDSCH时,由于UE不需要对接收的该PDSCH进行应答反馈和不需要HARQ合并,因此基站不需要在该DCI中指示HARQ process number。因此所述DCI可以通过不指示第二信息的方式,增加指示第一信息。进而实现了在DCI中不增加比特的情况下,在DCI中实现对MTCH的配置信息发生改变的指示,提高了控制信道传输的性能。而若所述DCI用于调度用户设备特定的PDSCH时,由于UE并不是调度MTCH,因此该DCI中不需要指示第一信息,且UE需要对接收的该PDSCH进行应答反馈和HARQ合并,因此基站需要在该DCI中包含指示HARQ PROCESS NUMBER的信息。
对于上述举例中的第一信息和第二信息,一种可能的实施例中,在DCI中可以通过不同字段指示,其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第 二信息。若DCI用于调度承载MTCH的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;所述DCI用于调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段。
可选的,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。请一并参见图3,为本发明实施例提供了一种比特位置示例图,以第一信息和第二信息的大小均为2个比特的情况为例进行说明,第一字段或第二字段在DCI中占用的比特位置为第16比特位置和第17比特位置。若DCI用于调度承载MTCH的PDSCH时,所述DCI中第16比特位置和第17比特位置为第一信息对应的比特位;若所述DCI用于调度UE特定的PDSCH时,所述DCI中第16比特位置和第17比特位置为第二信息对应的比特位。对于DCI中采用不同字段指示第一信息和第二信息的情况,通过采用固定比特位置来写入第一字段包含的比特或第二字段包含的比特,能够便于UE解读DCI中的第一信息和第二信息,进而提高解读效率。
另一种可能的实施例中,在DCI中可以通过同一个字段指示第一信息或第二信息,具体是所述DCI包括第五字段。所述DCI用于调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,所述DCI用于调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,所述DCI用于调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
举例来说,请一并参见图4,为本发明实施例提供的另一种比特位置示例图,如图4所示,以第一信息和第二信息的大小均为2个比特的情况为例进行说明,第五字段在DCI中占用的比特位置为第16比特位置和第17比特位置。若DCI用于调度承载MTCH的PDSCH时,DCI中第16比特位置和第17比特位置为第一信息对应的比特位;或者,若DCI用于调度UE特定的PDSCH时,DCI中第16比特位置和第17比特位置为第二信息对应的比特位;或者,若DCI用于调度承载随机接入响应消息的PDSCH时,DCI中第16比特位置和第17比特位置为预留比特位。可以看出,所述第一信息占用的字段为指示所述第二信息的字段,这样避免增加了DCI的比特开销,提高了DCI传输的性能,优化了资源的利用效率。
102,用户设备采用第一DCI格式接收DCI。
具体的,所述用户设备接收DCI所采用的DCI格式与所述基站传输所述DCI所采用的格式是相同的,本发明实施例对于第一DCI格式不做限定。
进一步的,所述用户设备可以通过确定对接收到的DCI的循环冗余校验(Cyclic Redundancy Check,CRC)加扰所采用的RNTI,确定所述DCI调用的PDSCH。
可选的,在所述用户设备接收到所述DCI之后,执行步骤105,若所述用户设备确定所述接收到的DCI的CRC采用第一RNTI加扰时,所述DCI用于调度承载MTCH的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息。或者,在所述用户设备接收到所述DI之后,执行步骤106,若所述用户设备确定所述接收到的DCI的CRC采用第二RNTI加扰时,所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
可选的,若所述用户设备确定所述接收到的DCI的CRC采用第三RNTI加扰时,所述 DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
由上述基站对于所述DCI用于调度不同PDSCH的情况,设定了所述DCI中所包括的字段、设定了所包括字段指示的信息以及该字段所包含比特在所述DCI中的比特位置,而用户设备对于这些信息也是可以确定的,因此,在用户设备确定所述DCI用于调度的PDSCH之后,可以按照设定的该PDSCH对应的所述DCI中所包括的字段、所包括字段指示的信息以及该字段所包含比特在所述DCI中的比特位置,确定所述DCI所指示的信息。
进一步的,对于第一信息、第二信息、以及指示第一信息的字段和第二信息的字段均可以参考在基站侧所介绍的内容,在此不再赘述。
举例来说,以上述图4所示的比特位置示例图为例,第一信息和第二信息的大小均为2个比特,第五字段在DCI中占用的比特位置为第16比特位置和第17比特位置。当所述用户设备确定所述DCI用于调度承载MTCH的PDSCH时,所述用户设备可以确定所述DCI中在第16比特位置和第17比特位置指示了第一信息,并从所述DCI的第16比特位置和第17比特位置获取比特值,进而确定所指示的第一信息;当所述用户设备确定所述DCI用于调度用户设备特定的PDSCH时,所述用户设备可以确定所述DCI中在第16比特位置和第17比特位置指示了第二信息,并从所述DCI的第16比特位置和第17比特位置获取比特值,进而确定所指示的第二信息;当所述用户设备确定所述DCI用于调度随机接入响应消息的PDSCH时,所述用户设备可以确定第16比特位置和第17比特位置为预留比特的位置。
需要说明的是,本发明实施例中,多播业务信道可以为是单载波多播控制信道(Single-carrier multicast Control channel,SC-MCCH),本发明实施例对此不做限定。
在本发明实施例中,基站采用第一DCI格式传输DCI,DCI用于调度承载MTCH的PDSCH时,通过第一RNTI指示DCI是用于调度承载MTCH的PDSCH,且DCI中指示第一信息和DCI中不指示第二信息;DCI用于调度用户设备UE特定的PDSCH时,通过第二RNTI指示DCI是用于调度UE特定的PDSCH,且DCI中不指示第一信息和DCI中指示第二信息。这样对于DCI用于调用不同PDSCH的情况,DCI中需要指示的信息和不需要指示的信息不同,因此通过不指示的信息来确定DCI中还可以被用的比特数量,并采用相应的比特数来指示需要指示的信息,这样能够在不增加比特数的情况下,传输需要指示的信息,提高了控制信道传输的性能。
图5为本发明实施例提供了一种网络设备的结构化示意图。本发明实施例中的网络设备可以是图2-图4所示任一实施例提供的网络设备。如图5所示,本发明实施例的网络设备1可以包括:传输模块11和指示模块12。
所述传输模块11用于采用第一DCI格式传输DCI;
所述指示模块12用于所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
所述指示模块12还用于所述DCI调度用户设备UE特定的PDSCH时,通过第二RNTI 指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在一个可选的实施例中,所述指示模块12还用于所述DCI调度承载随机接入响应消息的PDSCH时,通过第三RNTI指示所述DCI是用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
在一个可选的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一个可选的实施例中,所述DCI包括第一字段或第二字段;
所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一个可选的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一个可选的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一个可选的实施例中,所述DCI包括第五字段;
所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一个可选的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
所述第二信息为新数据指示NDI;或者,
所述第二信息为发射功率控制TPC;或者,
所述第二信息是混合自动重发请求进程号HARQ process number。
在一个可选的实施例中,所述第五字段是用于指示所述第二信息的字段。
图5所示实施例中的网络设备可以以图6所示的网络设备实现。如图6所示,为本发明实施例提供了一种网络设备的结构示意图,图6所示的网络设备600包括:处理器601和收发器602。其中,处理器601和收发器602通信连接,例如通过总线相连。可选的,所述网络设备600还可以包括存储器603。需要说明的是,实际应用中收发器602为至少一个,该网络设备600的结构并不构成对本发明实施例的限定。
其中,处理器601应用于本发明实施例中,用于实现图5所示的指示模块12的功能。收发器602应用于本发明实施例中,用于实现图5所示的传输模块11的功能。可选的,收发器602包括接收机和发射机,
处理器601可以是中央处理器(Central Processing Unit,CPU),通用处理器,数字信号处理(Digital Signal Processing,DSP),集成电路(Application Specific Integrated Circuit,ASIC),现场可编程逻辑门阵列(Field-Programmable Gate Array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。处理器601也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。
存储器603可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。
可选的,存储器603用于存储执行本申请方案的应用程序代码,并由处理器601来控制执行。处理器601用于执行存储器603中存储的应用程序代码,以实现图2-图4所示任一实施例提供的网络设备的动作。
在本发明实施例中还提供了一种计算机存储介质,用于储存为上述网络设备所用的计算机软件指令,其包含用于执行上述方面为网络设备所设计的程序。
图7为本发明实施例提供了一种用户设备的结构化示意图。本发明实施例中的用户设备可以是图2-图4所示任一实施例提供的用户设备。如图7所示,本发明实施例的用户设备2可以包括:接收模块21和确定模块22。
所述接收模块21用于采用第一DCI格式接收DCI;
所述确定模块22用于所述接收到的DCI的循环冗余编码CRC采用第一无线网络临时标识RNTI加扰时,确定所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
所述确定模块22还用于所述接收到的DCI的CRC采用第二RNTI加扰时,确定所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
在一个可选的实施例中,所述确定模块22还用于所述接收到的DCI的CRC采用第三 RNTI加扰时,确定所述DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
在一个可选的实施例中,所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
在一个可选的实施例中,所述DCI包括第一字段或第二字段;
所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
在一个可选的实施例中,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
在一个可选的实施例中,所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
在一个可选的实施例中,所述DCI包括第五字段;
所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
在一个可选的实施例中,所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
所述第二信息为新数据指示NDI;或者,
所述第二信息为发射功率控制TPC;或者,
所述第二信息是混合自动重发请求进程号HARQ process number。
在一个可选的实施例中,所述第五字段是用于指示所述第二信息的字段。
图7所示实施例中的用户设备可以以图8所示的用户设备实现。如图8所示,为本发明实施例提供了一种用户设备的结构示意图,图8所示的用户设备800包括:处理器801和收发器802。其中,处理器801和收发器802通信连接,例如通过总线相连。可选的, 所述用户设备800还可以包括存储器803。需要说明的是,实际应用中收发器802为至少一个,该用户设备800的结构并不构成对本发明实施例的限定。
其中,处理器801应用于本发明实施例中,用于实现图7所示的确定模块22的功能。收发器802应用于本发明实施例中,用于实现图7所示的接收模块21的功能。可选的,收发器802包括接收机和发射机,
处理器801可以是CPU,通用处理器,DSP,ASIC,FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。处理器801也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。
存储器803可以是ROM或可存储静态信息和指令的其他类型的静态存储设备,RAM或者可存储信息和指令的其他类型的动态存储设备,也可以是EEPROM、CD-ROM或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。
可选的,存储器803用于存储执行本申请方案的应用程序代码,并由处理器801来控制执行。处理器801用于执行存储器803中存储的应用程序代码,以实现图2-图4所示任一实施例提供的用户设备的动作。
在本发明实施例中还提供了一种计算机存储介质,用于储存为上述用户设备所用的计算机软件指令,其包含用于执行上述方面为用户设备所设计的程序。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,该流程可以由计算机程序来指令相关的硬件完成,该程序可存储于计算机可读取存储介质中,该程序在执行时,可包括如上述各方法实施例的流程。而前述的存储介质包括:ROM或随机存储记忆体RAM、磁碟或者光盘等各种可存储程序代码的介质。
尽管在此结合各实施例对本申请进行了描述,然而,在实施所要求保护的本申请过程中,本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书,可理解并实现所述公开实施例的其他变化。在权利要求中,“包括”(comprising)一词不排除其他组成部分或步骤,“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施,但这并不表示这些措施不能组合起来产生良好的效果。
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
本领域技术人员应明白,本申请的实施例可提供为方法、装置(设备)、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的 实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。计算机程序存储/分布在合适的介质中,与其它硬件一起提供或作为硬件的一部分,也可以采用其他分布形式,如通过Internet或其它有线或无线电信系统。
本申请是参照本申请实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本申请进行了描述,显而易见的,在不脱离本申请的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明,且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (36)

  1. 一种下行控制信息DCI传输的方法,其特征在于,包括:
    网络设备采用第一DCI格式传输DCI;
    所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,所述网络设备通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
    所述DCI调度用户设备UE特定的PDSCH时,所述网络设备通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
  2. 根据权利要求1所述的方法,其特征在于,还包括:
    所述DCI调度承载随机接入响应消息的PDSCH时,所述网络设备通过第三RNTI指示所述DCI是用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
  3. 根据权利要求1或2所述的方法,其特征在于,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
  4. 根据权利要求3所述的方法,其特征在于,所述DCI包括第一字段或第二字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
    所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
    其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
  5. 根据权利要求4所述的方法,其特征在于,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
  6. 根据权利要求4或5权利要求所述的方法,其特征在于,
    所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
  7. 根据权利要求2或3所述的方法,其特征在于,所述DCI包括第五字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
    所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
    所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
  8. 根据权利要求7所述的方法,其特征在于,
    所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
    所述第二信息为新数据指示NDI;或者,
    所述第二信息为发射功率控制TPC;或者,
    所述第二信息是混合自动重发请求进程号HARQ process number。
  9. 根据权利要求8权利要求所述的方法,其特征在于,
    所述第五字段是用于指示所述第二信息的字段。
  10. 一种下行控制信息DCI传输的方法,其特征在于,包括:
    用户设备采用第一DCI格式接收DCI;
    所述接收到的DCI的循环冗余编码CRC采用第一无线网络临时标识RNTI加扰时,所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
    所述接收到的DCI的CRC采用第二RNTI加扰时,所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
  11. 根据权利要求10所述的方法,其特征在于,还包括:
    所述接收到的DCI的CRC采用第三RNTI加扰时,所述DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
  12. 根据权利要求10或11所述的方法,其特征在于,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
  13. 根据权利要求12所述的方法,其特征在于,所述DCI包括第一字段或第二字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
    所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
    其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
  14. 根据权利要求13所述的方法,其特征在于,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
  15. 根据权利要求13或14权利要求所述的方法,其特征在于,
    所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
  16. 根据权利要求11或12所述的方法,其特征在于,所述DCI包括第五字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
    所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
    所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
  17. 根据权利要求16所述的方法,其特征在于,
    所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
    所述第二信息为新数据指示NDI;或者,
    所述第二信息为发射功率控制TPC;或者,
    所述第二信息是混合自动重发请求进程号HARQ process number。
  18. 根据权利要求17权利要求所述的方法,其特征在于,
    所述第五字段是用于指示所述第二信息的字段。
  19. 一种网络设备,包括处理器和收发器,所述收发器与所述处理器通信连接,其特征在于:
    所述收发器用于采用第一DCI格式传输DCI;
    所述处理器用于所述DCI调度承载多播业务信道的物理下行共享信道PDSCH时,通过第一无线网络临时标识RNTI指示所述DCI是用于调度承载多播业务信道的PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
    所述处理器还用于所述DCI调度用户设备UE特定的PDSCH时,通过第二RNTI指示所述DCI是用于调度UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
  20. 根据权利要求19所述的网络设备,其特征在于,
    所述处理器还用于所述DCI调度承载随机接入响应消息的PDSCH时,通过第三RNTI指示所述DCI是用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
  21. 根据权利要求19或20所述的网络设备,其特征在于,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个修改周期是否发生改变;或者,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
  22. 根据权利要求21所述的网络设备,其特征在于,所述DCI包括第一字段或第二字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
    所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
    其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
  23. 根据权利要求22所述的网络设备,其特征在于,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
  24. 根据权利要求22或23权利要求所述的网络设备,其特征在于,
    所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
  25. 根据权利要求20或21所述的网络设备,其特征在于,所述DCI包括第五字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
    所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
    所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
  26. 根据权利要求25所述的网络设备,其特征在于,
    所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
    所述第二信息为新数据指示NDI;或者,
    所述第二信息为发射功率控制TPC;或者,
    所述第二信息是混合自动重发请求进程号HARQ process number。
  27. 根据权利要求26权利要求所述的网络设备,其特征在于,
    所述第五字段是用于指示所述第二信息的字段。
  28. 一种用户设备,包括处理器和收发器,所述收发器与所述处理器通信连接,其特征在于:
    所述收发器用于采用第一DCI格式接收DCI;
    所述处理器用于所述接收到的DCI的循环冗余编码CRC采用第一无线网络临时标识RNTI加扰时,确定所述DCI用于调度承载多播业务信道的物理下行共享信道PDSCH,且所述DCI中指示第一信息和所述DCI中不指示第二信息;
    所述处理器还用于所述接收到的DCI的CRC采用第二RNTI加扰时,确定所述DCI用于调度用户设备UE特定的PDSCH,且所述DCI中不指示第一信息和所述DCI中指示第二信息。
  29. 根据权利要求28所述的用户设备,其特征在于,还包括:
    所述处理器还用于所述接收到的DCI的CRC采用第三RNTI加扰时,确定所述DCI用于调度随机接入响应消息的PDSCH,且所述DCI中不指示第一信息和所述DCI中不指示第二信息。
  30. 根据权利要求28或29所述的用户设备,其特征在于,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道的配置在下一个 修改周期是否发生改变;或者,
    所述第一信息的大小是1比特,所述第一信息用于指示多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息只包括第三信息和第四信息,所述第三信息大小是1比特,所述第四信息大小是1比特,所述第三信息用于指示所述多播业务信道的配置在下一个修改周期是否发生改变,所述第四信息用于指示所述多播业务信道在下一个修改周期是否新业务开始;或者,
    所述第一信息的大小是2比特,所述第一信息的2比特用于联合指示所述多播业务信道的配置在下一个修改周期是否发生改变,和所述多播业务信道在下一个修改周期是否新业务开始。
  31. 根据权利要求29所述的用户设备,其特征在于,所述DCI包括第一字段或第二字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述DCI包括所述第一字段且不包括所述第二字段;
    所述DCI调度UE特定的PDSCH时,所述DCI包括所述第二字段且不包括所述第一字段;
    其中,所述第一字段用于指示所述第一信息,所述第二字段用于指示所述第二信息。
  32. 根据权利要求31所述的用户设备,其特征在于,所述第一字段包含的比特在DCI中的比特位置与所述第二字段包含的比特在DCI中的比特位置相同。
  33. 根据权利要求31或32权利要求所述的用户设备,其特征在于,
    所述第一信息只包括第三信息和第四信息时,所述第一字段包括第三字段和第四字段,所述第三字段用于指示所述第三信息,所述第四字段用于指示所述第四信息。
  34. 根据权利要求29或30所述的用户设备,其特征在于,所述DCI包括第五字段;
    所述DCI调度承载多播业务信道的PDSCH时,所述第五字段用于指示所述第一信息;或者,
    所述DCI调度UE特定的PDSCH时,所述第五字段用于指示所述第二信息;或者,
    所述DCI调度承载随机接入响应消息的PDSCH时,所述第五字段的比特为预留比特。
  35. 根据权利要求34所述的用户设备,其特征在于,
    所述第二信息为混合自动重发请求-肯定应答资源偏移HARQ-ACK resource offset;或者,
    所述第二信息为新数据指示NDI;或者,
    所述第二信息为发射功率控制TPC;或者,
    所述第二信息是混合自动重发请求进程号HARQ process number。
  36. 根据权利要求35权利要求所述的方法,其特征在于,
    所述第五字段是用于指示所述第二信息的字段。
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US12047948B2 (en) 2019-02-13 2024-07-23 Samsung Electronics Co., Ltd. Method and device for transmitting and receiving data based on scheduling restriction condition
CN113473632A (zh) * 2020-03-31 2021-10-01 维沃移动通信有限公司 物理下行共享信道的调度方法、网络设备及终端设备
CN113473632B (zh) * 2020-03-31 2023-04-07 维沃移动通信有限公司 物理下行共享信道的调度方法、网络设备及终端设备
WO2022078082A1 (zh) * 2020-10-16 2022-04-21 华为技术有限公司 一种指示反馈信息的方法和装置

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