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WO2018201850A1 - Procédé, appareil et système de configuration de ressources - Google Patents

Procédé, appareil et système de configuration de ressources Download PDF

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Publication number
WO2018201850A1
WO2018201850A1 PCT/CN2018/082246 CN2018082246W WO2018201850A1 WO 2018201850 A1 WO2018201850 A1 WO 2018201850A1 CN 2018082246 W CN2018082246 W CN 2018082246W WO 2018201850 A1 WO2018201850 A1 WO 2018201850A1
Authority
WO
WIPO (PCT)
Prior art keywords
search space
access preamble
network device
data channel
mac pdu
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/082246
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English (en)
Chinese (zh)
Inventor
李俊超
唐浩
汪凡
唐臻飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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.)
Filing date
Publication date
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Publication of WO2018201850A1 publication Critical patent/WO2018201850A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a resource configuration method, apparatus, and system.
  • a network device transmits information to a user equipment (UE) through a channel.
  • the network device transmits control information to the UE over the control channel.
  • the network device configures a candidate resource location of the control channel for the UE, selects a resource location from the candidate resource locations, and sends control information to the UE through the control channel at the selected resource location.
  • the UE detects the control channel at the candidate resource location and obtains control information.
  • the control channel includes a common control channel and a UE specific control channel.
  • the network device can configure the candidate resource location of the common control channel and the candidate resource location of the UE-specific control channel for the UE in a pre-configured manner. At this time, the network device cannot introduce other communication systems at the candidate resource location according to requirements.
  • the present application provides a resource configuration method, apparatus and system for providing a flexible forward compatible communication system.
  • the application provides a resource configuration method, including: a network device sends a MAC PDU to a UE, where the resource location of the control channel is configured for the UE.
  • the MAC PDU includes at least one resource configuration, and any one of the at least one resource configuration is configured to configure a search space of the control channel for the UE.
  • Any one of the at least one resource configuration may be a search space configuration indication for indicating a search space configuration for the UE.
  • the search space is configured as a search space configuration in the candidate search space configuration.
  • the candidate search space configuration includes at least one search space configuration, and any one of the at least one search space configurations is configured to configure an index of candidate resource locations of the control channel for the UE.
  • Any one of the at least one resource configuration may also be a search space configuration for configuring an index of candidate resource locations of the control channel for the UE.
  • the MAC PDU may further include an access preamble identifier or an access preamble identifier and a random access response (RAR) for transmitting a random to the UE through the MAC PDU during the access process.
  • RAR random access response
  • the MAC PDU includes at least one resource configuration, and the MAC PDU is any one of a first MAC PDU to a third MAC PDU.
  • the first type of MAC PDU includes a MAC header and one of the resource configurations, and the MAC header includes N1 access preamble identifiers, and N1 is an integer greater than or equal to 1.
  • the second MAC PDU includes a MAC header and N2 resource configurations, the MAC header includes N2 access preamble identifiers, N2 access preamble identifiers and N2 resource configurations are in one-to-one correspondence, and N2 is an integer greater than or equal to 1.
  • the third MAC PDU includes a MAC header and N3 MAC RARs, and the MAC header includes N3 access preamble identifiers, and any one of the N3 MAC RARs includes one of the foregoing resource configurations, N3 access preamble identifiers, and N3 MAC RAR is one-to-one correspondence, and N3 is an integer greater than or equal to 1.
  • the application provides a resource configuration method, including: the network device sends a first data channel to the UE, where the first data channel carries M search space configurations, and M is an integer greater than or equal to 1; the network device sends the information to the UE. a second data channel, the second data channel carrying a MAC PDU, the MAC PDU including at least one search space configuration indication.
  • the search space configuration indication is used to indicate a search space configuration for the UE, where the search space is configured as a search space configuration included in the M search space configurations carried by the first data channel.
  • the M search space configurations carried by the first data channel may be included in a system message carried by the first data channel, and may also be included in a system information block (SIB) carried in the first data channel. )in.
  • SIB system information block
  • the first data channel carries M search space configurations
  • any one of the M search space configurations may include at least one information bit in the at least one information bit
  • Any information bit corresponds to a resource block (RB) of the downlink bandwidth.
  • RB resource block
  • Any one of the M search space configurations may also include at least one information bit, and any one of the at least one information bits corresponds to a resource block group (RBG) of the downlink bandwidth.
  • RBG resource block group
  • Any one of the M search space configurations may also include a resource indication value (RIV), and the RIV indicates a starting RB of the search space and a number of consecutively allocated RBs, or a search space. The number of starting RBGs and consecutively allocated RBGs.
  • Any one of the M search space configurations may further include Y combined indexes, and one combined index indicates P group resource configuration information. Any one of the group resource configuration information in the P group resource configuration information includes a start RB index and an end RB index, or includes a start RBG index and an end RBG index. Wherein Y and P are integers greater than or equal to 1.
  • the second data channel carries the MAC PDU
  • the MAC PDU includes at least one search space configuration indication.
  • the MAC PDU is the same as the MAC PDU in the first design of the first aspect. Any one of the at least one resource configuration included in the MAC PDU is configured as a search space configuration indication.
  • the MAC PDU includes at least one search space configuration indication, where the search space configuration indication includes L information bits, where
  • the method according to any one of the preceding aspect or the second aspect further comprising: the network device transmitting the first control channel to the UE; wherein the CRC of the information carried by the first control channel is The system information RNTI (System Information RNTI, abbreviated as SI-RNTI) is scrambled, and the first control channel carries scheduling information of the first data channel.
  • SI-RNTI System Information RNTI
  • the method according to any one of the preceding or second aspect of the second aspect further comprising: the network device transmitting the second control channel to the UE.
  • the CRC of the information carried by the second control channel is scrambled by using a random access RNTI (RA-RNTI), and the second control channel carries scheduling information of the second data channel.
  • RA-RNTI random access RNTI
  • the present application provides a resource configuration method, including: receiving, by a UE, a first data channel, and obtaining M search space configurations, where the first data channel carries M search space configurations, and M is an integer greater than or equal to 1. .
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the search space configuration indication is used to indicate a search space configuration for the UE, where the search space is configured as a search space configuration included in the M search space configurations.
  • the M search space configurations carried by the first data channel may be included in the system message carried by the first data channel, and may also be included in the SIB carried by the first data channel.
  • the first data channel carries M search space configurations, any one of the M search space configurations being the same as described in the first design of the second aspect Search space configuration.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the MAC PDU includes a MAC header and a search space configuration indication, and the MAC header includes N1 access preamble identifiers, where N1 is an integer greater than or equal to 1.
  • the method further includes the UE transmitting an access preamble to the network device.
  • the UE uses one search space configuration indication included in the MAC PDU as the UE. Search space configuration indication.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the MAC PDU includes a MAC header and N2 search space configuration indications
  • the MAC header includes N2 access preamble identifiers
  • N2 access preamble identifiers and N2 search space configurations are in one-to-one correspondence
  • N2 is an integer greater than or equal to 1.
  • the method further includes the UE transmitting an access preamble to the network device.
  • the UE uses the search space configuration indication corresponding to the one access preamble identifier as the location.
  • the search space configuration indication of the UE is the same as the access preamble sent by the UE to the network device.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the MAC PDU includes a MAC header and N3 MAC RARs.
  • the MAC header includes N3 access preamble identifiers, and any one of the N3 MAC RARs includes a search space configuration indication, and the N3 access preamble identifiers correspond to N3 MAC RARs, and N3 is greater than or equal to 1. Integer.
  • the method further includes the UE transmitting an access preamble to the network device.
  • the UE uses the search space configuration indication corresponding to the one access preamble identifier as the location.
  • the search space configuration indication of the UE is the same as the access preamble sent by the UE to the network device.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the search space configuration indication includes L information bits, wherein
  • the method further includes: the UE receiving the first control channel, detecting the first control channel in the common search space, and the UE according to the SI-RNTI pair
  • a control channel decoding obtains scheduling information of the first data channel, and is configured to receive the first data channel according to the scheduling information.
  • the method further includes: the UE receives the second control channel, detects the second control channel in the common search space, and the UE performs the second according to the RA-RNTI Control channel decoding, obtaining scheduling information of the second data channel, for receiving the second data channel according to the scheduling information.
  • the application provides a resource configuration method, including: the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration.
  • the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration indication.
  • the MAC PDU is the same as the MAC PDU in the first design of the first aspect. Any one of the at least one resource configuration included in the MAC PDU is configured as a search space configuration.
  • the MAC PDU includes at least one search space configuration, the search space configuration being the same as the M search spaces described in the first design of the second aspect Any of the search space configurations in the configuration.
  • the method according to any one of the preceding or fourth aspects of the fourth aspect further comprising: the network device transmitting the second control channel to the UE.
  • the CRC of the information carried by the second control channel is scrambled by using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the present application provides a resource configuration method, including: receiving, by a UE, a second data channel, obtaining a MAC PDU carried by a second data channel, and obtaining a search space configuration included in the MAC PDU.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration included in the MAC PDU.
  • the MAC PDU includes a MAC header and a search space configuration
  • the MAC header includes N1 access preamble identifiers, and N1 is an integer greater than or equal to 1.
  • the method further includes the UE transmitting an access preamble to the network device. If the access preamble corresponding to one of the N1 access preamble identifiers is the same as the access preamble sent by the UE to the network device, the UE uses the search space configuration included in the MAC PDU as the UE search. Space configuration.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration included in the MAC PDU.
  • the MAC PDU includes a MAC header and N2 search space configurations, the MAC header includes N2 access preamble identifiers, N2 access preamble identifiers and N2 search space configurations are in one-to-one correspondence, and N2 is an integer greater than or equal to 1.
  • the method further includes the UE transmitting an access preamble to the network device.
  • the UE uses the search space configuration corresponding to the one access preamble identifier as the The search space configuration of the UE.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration included in the MAC PDU.
  • the MAC PDU includes a MAC header and N3 MAC RARs.
  • the MAC header includes N3 access preamble identifiers, and any one of the N3 MAC RARs includes a search space configuration, N3 access preamble identifiers and N3 MAC RARs are one-to-one correspondence, and N3 is an integer greater than or equal to 1.
  • the method further includes the UE transmitting an access preamble to the network device.
  • the UE uses the search space configuration corresponding to the one access preamble identifier as the The search space configuration of the UE.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains the search included in the MAC PDU.
  • Space configuration is the same as any one of the M search space configurations described in the first design of the second aspect.
  • the method according to any one of the fifth aspect or the fifth aspect further comprising: the UE receiving the second control channel, detecting the second control channel in the common search space, and the UE according to the RA-RNTI Decoding the second control channel, obtaining scheduling information of the second data channel, and receiving the second data channel according to the scheduling information.
  • the present application provides a network device capable of implementing the method described in the second aspect above, the method of each design description of the second aspect, the method described in the fourth aspect, or the design of the fourth aspect
  • the function of the network device in the described method can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device comprises: a transmitting module/receiving module.
  • the transmitting module/receiving module is used to support communication between the network device and the UE.
  • the transmitting module/receiving module is configured to send a first data channel to the UE, where the first data channel carries M search space configurations, and M is an integer greater than or equal to 1.
  • the transmitting module/receiving module is further configured to send the first control channel to the UE, where the CRC of the information carried by the first control channel is scrambled by using an SI-RNTI, where the first control channel carries scheduling information of the first data channel.
  • the transmitting module/receiving module is further configured to send a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration indication.
  • the search space configuration indication is used to indicate a search space configuration for the UE, where the search space is configured as a search space configuration in the M search space configurations carried by the first data channel.
  • the transmitting module/receiving module is further configured to send a second control channel to the UE, the CRC of the information carried by the second control channel is scrambled by using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the network device comprises: a transmitting module/receiving module.
  • the transmitting module/receiving module is used to support communication between the network device and the UE.
  • the transmitting module/receiving module is configured to send a second data channel to the UE, the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration.
  • the transmitting module/receiving module is further configured to send a second control channel to the UE, the CRC of the information carried by the second control channel is scrambled by using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the present application provides a UE, which is capable of implementing the method described in the foregoing third aspect, the method described in each of the third aspects, the method described in the fifth aspect, or the method described in each of the fifth aspects.
  • the function of the UE. This function can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the UE comprises: a transmitting module/receiving module.
  • the transmitting module/receiving module is configured to receive the first data channel, obtain M search space configurations, and M is an integer greater than or equal to 1.
  • the transmitting module/receiving module is further configured to receive the first control channel, where the CRC of the information carried by the first control channel is scrambled by using an SI-RNTI, where the first control channel carries scheduling information of the first data channel.
  • the transmitting module/receiving module is further configured to receive the second data channel, obtain a MAC PDU carried by the second data channel, and obtain a search space configuration indication included in the MAC PDU.
  • the search space configuration indication is used to indicate a search space configuration for the UE, and the search space is configured as a search space configuration in the foregoing M search space configurations.
  • the transmitting module/receiving module is further configured to receive the second control channel, the CRC of the information carried by the second control channel is scrambled by using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the UE may further include a determining module configured to determine a search space configuration of the UE according to the search space configuration indication obtained by the UE.
  • the transmitting module/receiving module may also be used to The network device sends an access preamble.
  • the UE comprises: a transmitting module/receiving module.
  • the transmitting module/receiving module is configured to receive the second data channel, obtain the MAC PDU carried by the second data channel, and obtain at least one search space configuration included in the MAC PDU.
  • the transmitting module/receiving module is further configured to receive the second control channel, the CRC of the information carried by the second control channel is scrambled by using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the UE may further include a determining module configured to determine a search space configuration of the UE according to the search space configuration indication obtained by the UE.
  • the transmitting module/receiving module can also be used to The network device sends an access preamble.
  • the present application provides a communication system including the network device of the sixth aspect and the UE of the seventh aspect.
  • the present application provides a chip system including a transmitter/receiver, and a processor and/or a storage unit for supporting a network device to implement the foregoing second aspect and second aspect
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a chip system, including a transmitter/receiver, and a processor and/or a storage unit, configured to support a UE to implement the foregoing third and third aspects of the design.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the second aspect, the second aspect of the design, the fourth aspect or the fourth aspect The method described in the design.
  • the present application provides a computer program product comprising instructions, which, when run on a computer, cause the computer to perform each of the third aspect, the third aspect, the fifth aspect, or the fifth aspect Design the method of description.
  • the network device can flexibly configure the resource location of the control channel for the UE, so that the network device can flexibly configure the blank resource in the system bandwidth according to the requirement, in the blank resource.
  • FIG. 1 is a schematic diagram of an access process according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a first resource configuration method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a second resource configuration method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a first resource configuration according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of downlink bandwidth provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a subband included in a system bandwidth provided by an embodiment of the present application.
  • FIG. 7(a) and 7(b) are schematic structural diagrams of a first type of MAC PDU according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a MAC RAR according to an embodiment of the present application.
  • 9(a) and 9(b) are schematic structural diagrams of a second type of MAC PDU according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a third MAC PDU according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a second resource configuration according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of still another apparatus according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of still another apparatus according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of still another apparatus according to an embodiment of the present application.
  • the technical solutions provided by the embodiments of the present application can be applied to various communication systems, such as a global system for mobile communication (GSM), a code division multiple access (CDMA) system, and a wideband code.
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • WCDMA Wideband code division multiple access
  • TD-SCDMA time division-synchronous code division multiple access
  • UMTS universal mobile telecommunications system
  • LTE long term evolution
  • 5G fifth generation mobile communication technology
  • the technical solution provided by the embodiment of the present application can be applied to the communication between the network device and the user equipment (UE), and can also be applied to the communication between the network device and the network device, and the device to device (D2D). Communication or machine-to-machine (M2M) communication.
  • UE user equipment
  • D2D device to device
  • M2M machine-to-machine
  • the UE involved in the embodiment of the present application includes a handheld device having a wireless communication function, an in-vehicle device, a wearable device, a computing device, or other processing device connected to the wireless modem.
  • the UE may also be referred to as a terminal, a mobile station (MS), a mobile terminal (MT), a user terminal (UT), and a user agent (UA). Or terminal equipment (TE), etc., this application is not limited.
  • the network device involved in the embodiment of the present application includes a base station (BS), a network controller, a mobile switching center, or another access network device, which is a type of wireless communication network that can be wirelessly communicated with the UE. s installation.
  • the base station includes various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the base station may be a base transceiver station (BTS) in GSM or CDMA, or may be a NodeB in WCDMA, or an evolved base station (evolotional Node B, eNB or e-NodeB in LTE). ), it can also be a base station in a 5G system.
  • the base station in the 5G system may be referred to as a transmission reception point (TRP), and may also be referred to as a gNB (generation Node B, gNB for short).
  • the network device may also be a network device in a future network, and so on, which is not limited in this application.
  • the UE may first access the network device. During the access process, access conflicts of multiple UEs may occur, and conflict resolution is required.
  • the network device sends the scheduling information of the data channel to the UE through the control channel, and sends a contention resolution identifier to the UE through the data channel, where the access conflict of multiple UEs is resolved.
  • the information carried by the data channel may be referred to as a message 4 (Msg4), and the message 4 includes a contention resolution identifier, and the data channel may be referred to as a data channel carrying the message 4.
  • the network device configures the candidate resource location of the control channel corresponding to the data channel carrying the Msg4 for the UE to perform the transmission of the control channel. At this time, the network device cannot configure the resource of the candidate resource location as a blank resource according to requirements, so the network device cannot introduce various possible communication systems in the resource according to requirements.
  • the embodiment of the present application provides a solution for resource configuration, which can provide a forward compatible communication system.
  • the network device can flexibly configure the resource location of the channel according to requirements, so that the network device can configure blank resources in the system resources according to requirements, and introduce various possible communication systems in the blank resources.
  • the resource may be a time domain resource, a frequency domain resource, or a time-frequency domain resource.
  • the resource configuration solution provided by the embodiment of the present application may be used to perform resource configuration of a control channel, and may also be used for resource configuration of other channels, where the other channel includes a data channel, an access channel, or a reference signal, etc., which is not used in this application. limit.
  • the solution of the resource configuration provided by the embodiment of the present application is mainly described by using a control channel as an example.
  • the network device sends control information to the UE through the control channel, and is used to support the network device and the UE to perform communication.
  • the network device sends a control channel to the UE.
  • the control channel is a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH).
  • the control channel can carry scheduling information of the data channel for supporting data transmission between the network device and the UE.
  • the scheduling information includes scheduling information of an uplink (UL) data channel, scheduling information of a downlink (DL) data channel, or scheduling information of a sidelink data channel.
  • control channel if the control channel carries the scheduling information of the data channel, the control channel may be referred to as a control channel corresponding to the data channel, and the data channel may be referred to as a data channel corresponding to the control channel.
  • the control channel may also carry other control information.
  • the other control information includes power control commands and the like, which are not limited in this application.
  • the cyclic redundancy code (CRC) of the information carried by the control channel is scrambled by using a corresponding radio network temporary identifier (RNTI) for error detection of the control channel transmission. .
  • RNTI radio network temporary identifier
  • the UE receives the control channel, decodes the control channel according to the corresponding RNTI, and obtains scheduling information of the data channel, so that the UE can communicate with the network device through the data channel according to the scheduling information. If the scheduling information includes scheduling information of the downlink data channel, the UE can receive the downlink data channel according to the scheduling information, and obtain data sent by the network device to the UE. If the scheduling information includes the scheduling information of the uplink data channel, the UE can send the uplink data channel to the network device according to the scheduling information, so that the network device obtains the data sent by the UE. If the scheduling information includes side link scheduling information, the UE can communicate with another UE corresponding to the side link according to the scheduling information.
  • the “network device sends a channel to the UE” may be understood as the network device transmitting the information carried by the channel to the UE through the channel; and the network device may also map the information carried by the channel to the resource location of the channel.
  • the UE sends a channel to the network device can be understood as the UE transmitting the information carried by the channel to the network device through the channel. It can also be understood that the UE maps the information carried by the channel to the resource of the resource location of the channel, and the channel is used to the network device. Send the information carried by the channel.
  • “carrying” can also be called bearer.
  • the network device configures a search space of the control channel for the UE, where the search space may also be referred to as a candidate resource location, and the candidate resource location of the control channel includes at least one resource location possible of the control channel.
  • the network device selects one of the candidate resource locations.
  • the network device selects one of the candidate resource locations according to the channel quality, and transmits a control channel to the UE at the resource location.
  • the CRC of the information carried by the control channel is scrambled using the corresponding RNTI.
  • the UE monitors the search space of the control channel and detects the control channel in the search space.
  • the UE detects a control channel for each resource location possible in the control space in the search space.
  • the control channel includes a common control channel and a UE specific control channel.
  • the common control channel is used to send control information to a group of UEs, including a part of UEs or all UEs in the cell. Wherein, if the group of UEs is all UEs in the cell, the common control channel may be referred to as a cell control channel or a cell specific control channel.
  • the UE-specific control channel is used to send the UE-specific control information to the UE, and the UE-specific control channel may also be referred to as a UE control channel.
  • the search space of the common control channel may be referred to as a common search space, and the search space of the UE-specific control channel may be referred to as a UE-specific search space (USS).
  • USS UE-specific search space
  • the search space configured by the network device for the UE is mainly a search space of a control channel corresponding to the data channel carrying the message 4, and the search space may be a common search space or a UE-specific search space. If the search space is a common search space, the UE may also detect other common control channels in the communication system in the search space, and the other common control channels may be control channels corresponding to data channels carrying system messages, or may be randomly carried. The control channel corresponding to the data channel of the access response, and the like, is not limited in this application. When the search space is a UE-specific search space, the UE may also detect other UE-specific control channels in the search space, and the other UE-specific control channels may be control channels corresponding to data channels carrying UE-specific information.
  • the implementation of the present application provides a medium access control (MAC) protocol data unit (PDU).
  • the network device may send the MAC PDU to the UE, and configure the resource location of the control channel for the UE through the MAC PDU.
  • the UE receives the MAC PDU, and determines a resource location of the control channel according to the MAC PDU.
  • the MAC PDU provided by the embodiment of the present application includes at least one resource configuration, and any one of the at least one resource configuration is configured to configure a search space of the control channel for the UE.
  • the network device can flexibly configure the resource location of the control channel, and avoids the resource location of the pre-configured control channel, so that the network device can flexibly configure the blank resource in the system resource according to requirements, and can introduce various possible
  • the communication system can realize the evolution of the communication system flexibly in the system resources. Further, if a plurality of communication systems need to be supported in the system resources, the MAC PDU provided by the embodiment of the present application can flexibly support the multiple communication systems in the system resources, so that the system resources can be fully utilized for data transmission, that is, By adjusting the resources of each communication system according to the load of each communication system in the plurality of communication systems, it is possible to increase the total data transmission rate of each communication system in the system resources.
  • the MAC PDU provided by the implementation of the present application may further include an access preamble identifier, or an access preamble identifier and a random access response (RAR), which is used to send the UE to the UE through the MAC PDU during the access process. Random access response.
  • RAR can also be called MAC RAR.
  • FIG. 1 is a schematic diagram of an access procedure provided by an embodiment of the present application.
  • a UE sends an access preamble to a network device.
  • the UE sends an access preamble to the network device by using a random access channel.
  • the UE selects a resource location from at least one available resource location of the random access channel, selects an access preamble from the at least one available access preamble, and transmits the selected access preamble to the network device through the random access channel at the selected resource location.
  • the network device sends a message 2 (message 2, Msg2 for short) to the UE.
  • message 2 messagessage 2, Msg2 for short
  • the network device After receiving the access preamble, the network device sends a data channel carrying the message 2 and a control channel corresponding to the data channel to the UE.
  • the message 2 is a message including an access preamble identifier, or a message including an access preamble identifier and an RAR.
  • the UE detects a control channel corresponding to the data channel carrying the message 2 in the common search space or the UE-specific search space, obtains scheduling information of the data channel, and receives the data channel according to the scheduling information. If the access preamble corresponding to the access preamble identifier included in the message 2 is the same as the access preamble sent by the UE to the network device, the UE considers that the access preamble sent by the UE may have been received by the network device.
  • the UE may not determine whether the network device is successfully accessed through steps 101 and 102, and multiple UEs may send the same to the network device at the resource location of the same random access channel.
  • the access preamble of the UE occurs, and the UE may not determine whether the access preamble received by the network device is an access preamble sent by the UE.
  • the access conflict can also be called access competition. Therefore, the network device and the UE need to perform the transmission of message 3 (Msg3) and message 4 (Msg4) for contention resolution.
  • the message 3 is a message sent by the UE to the network device for contention resolution
  • the message 4 is a message sent by the network device to the UE for contention resolution.
  • the UE sends a message 3 to the network device.
  • the network device sends a message 4 to the UE.
  • Any one of the at least one resource configuration included in the MAC PDU provided by the embodiment of the present application may be a search space configuration indication for indicating a search space configuration for the UE.
  • the search space is configured as a search space configuration in M search space configurations, and M is an integer greater than or equal to 1.
  • Any one of the M search space configurations is configured to configure an index of candidate resource locations of the control channel for the UE.
  • the index of the resource location may also be described as an identifier of the resource location, an index of the resource, or an identifier of the resource.
  • Any one of the at least one resource configuration included in the MAC PDU provided by the embodiment of the present application may also be a search space configuration for configuring an index of a candidate resource location of the control channel for the UE.
  • any one of the at least one resource configuration included in the MAC PDU is a search space configuration indication, configured to indicate a search space configuration for the UE.
  • the search space is configured as a search space configuration in M search space configurations, and M is an integer greater than or equal to 1.
  • Any one of the M search space configurations is configured to configure an index of candidate resource locations of the control channel for the UE.
  • the network device sends the MAC PDU and the M search space configurations to the UE.
  • FIG. 2 is a schematic diagram of a first resource configuration method according to an embodiment of the present application. As shown in FIG.
  • a network device sends a first data channel to a UE, where the first data channel carries M search space configurations, where M is An integer greater than or equal to 1.
  • the UE receives the first data channel and obtains the above M search space configurations.
  • the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration indication.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the search space configuration indication is used to indicate a search space configuration for the UE, where the search space configuration is a search space configuration included in the M search space configurations obtained by the UE, and may also be described as the search space configuration being carried as the first data channel.
  • the M search space configuration includes the search space configuration.
  • any one of the at least one resource configuration included in the MAC PDU is a search space configuration.
  • the network device sends the MAC PDU to the UE.
  • FIG. 3 is a schematic diagram of a second resource configuration method according to an embodiment of the present disclosure. As shown in FIG. 3, the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least A search space configuration for configuring an index of candidate resource locations of the control channel for the UE.
  • the network device can flexibly configure the resource location of the control channel for the UE through the signaling configuration, avoiding the resource location of the pre-configured control channel, and can provide a forward compatible communication system.
  • the network device can flexibly configure the resource location of the control channel, and avoids the resource location of the pre-configured control channel, so that the network device can flexibly configure the blank resource in the system resource according to requirements, and can introduce various possible
  • the communication system can realize the evolution of the communication system flexibly in the system resources.
  • the resource configuration method provided by the embodiments of the present application can flexibly support the multiple communication systems in the system resources, thereby fully utilizing system resources for data transmission, that is, The resources of each communication system can be adjusted according to the load of each communication system in the plurality of communication systems, and the total data transmission rate of each communication system can be improved in the system resources.
  • step 401 the network device sends a first data channel to the UE, where the first data channel carries M search space configurations, and M is an integer greater than or equal to 1.
  • Any one of the M search space configurations is configured to configure an index of candidate resource locations for the control channel for the UE.
  • the resource corresponding to the candidate resource location of the control channel or the resource location of the control channel includes X1 control channel elements (CCEs), and one CCE includes X2 resource element groups (REGs).
  • An REG includes X3 resource blocks (RBs) in the frequency domain and X4 symbols in the time domain.
  • X1, X2, X3, and X4 are integers greater than 1, and exemplarily, X2 is a multiple of 2, 6 or 8, etc. 2, X3 is 1, and X4 is 1.
  • the RBs described in the embodiments of the present application are units of resources in the frequency domain or in the time-frequency domain.
  • a downlink bandwidth for downlink transmission includes a plurality of resource cells, and one resource lattice corresponds to one sub-frequency domain.
  • Carrier one RB includes X5 resource cells, and X5 is an integer greater than 1.
  • the downlink bandwidth can be described as X6 RBs, and X6 is an integer greater than or equal to 1.
  • one RB may include X7 symbols, and X7 is an integer greater than 1, and exemplarily, X7 is 7 or 14. Taking an RB frequency domain including 12 resource cells and a time domain including 7 symbols as an example, FIG. 5 is a schematic diagram of possible downlink bandwidth structure. As shown in FIG.
  • the downlink bandwidth includes RB 0 to RB X6-1 and a total of X6. RB.
  • the downlink bandwidth may also be described as X8 resource block groups (RBGs), one RBG includes X9 RBs, and X8 and X9 are integers greater than 1.
  • the downlink bandwidth may also be a transmission bandwidth or a system bandwidth.
  • the downlink bandwidth is a bandwidth used for communication between the network device and the UE.
  • the downlink bandwidth may also be a subband bandwidth of a subband included in the system bandwidth.
  • FIG. 6 is a schematic diagram of a possible structure of a subband included in the system bandwidth. As shown in FIG. 6, the system bandwidth includes a subband 0. Subband 1 and subband 2 have a total of 3 subbands, and one subband includes a bandwidth of system bandwidth.
  • the search space configuration may include X6 information bits, one information bit corresponding to one RB of the downlink bandwidth, and when one information bit takes the value t1, the RB corresponding to the information bit is considered to be included in the search space, when one information bit takes a value. When it is t2, it is considered that the RB corresponding to the information bit is not included in the search space.
  • t1 and t2 are integers. Illustratively, t1 is 1 and t2 is 0.
  • the search space configuration may also include X8 information bits, one information bit corresponding to one RBG of the downlink bandwidth, and when one information bit takes the value t3, the RBG corresponding to the information bit is considered to be included in the search space, when one information bit is taken When the value is t4, the RBG corresponding to the information bit is considered not included in the search space.
  • t3 and t4 are integers. Illustratively, t3 is 1 and t4 is 0.
  • the search space configuration may also include a resource indication value (RIV).
  • the RIV indicates the starting RB of the search space and the number of consecutively allocated RBs, or the starting RBG of the search space and the number of consecutively allocated RBGs.
  • the bandwidth corresponding to the continuously allocated RB or the continuously allocated RBG is less than or equal to the bandwidth supported by the UE that needs to monitor the search space. If a group of UEs needs to detect the same search space, the bandwidth corresponding to consecutively allocated RBs or consecutively allocated RBGs is less than or equal to the minimum of the bandwidth supported by the group of UEs.
  • the group of UEs may be part of UEs or all UEs in the cell.
  • the search space configuration may also include Y combined indexes, and Y is an integer greater than or equal to 1.
  • a combined index indicates P group resource configuration information. Any one of the group resource configuration information in the P group resource configuration information includes a start RB index and an end RB index, or includes a start RBG index and an end RBG index. Where P is an integer greater than or equal to 1, and the index may also be referred to as an identifier.
  • a set of resource configuration information indicates a contiguous resource. If the group resource configuration information includes a start RB index and an end RB index, and the start RB index and the end RB index are the same, the group resource configuration information indicates an RB. The index corresponding to the RB is the starting RB index or the ending RB index.
  • the group of resource configuration information includes a starting RBG index and an ending RBG index
  • the initial RBG index and the ending RBG index are the same
  • the group resource configuration information indicates an RBG
  • the index corresponding to the RBG is the starting RBG index. Or end the RBG index.
  • the sum of the resources indicated by the resource configuration information of the P group resource configuration information indicated by the combined index is the resource indicated by the combined index.
  • the sum of the resources indicated by the above Y combined indexes is the search space.
  • the M search space configurations carried by the first data channel may be included in a system message carried by the first data channel. It can also be described that the first data channel carries a system message, and the system message includes M search space configurations.
  • the system information may include one or more system information blocks (SIBs).
  • SIBs system information blocks
  • the system messages include SIB1 to SIB20, and different SIBs may include different information. If the system message includes the SIB, the foregoing M search space configurations may also be included in the SIB carried by the first data channel. It can be described that the first data channel carries the SIB, and the SIB includes M search space configurations.
  • the network device may also send the first control channel to the UE if the M search space configurations carried by the first data channel are included in the system message carried by the first data channel or the SIB carried by the first data channel.
  • the CRC of the information carried by the first control channel is scrambled by using system information RNTI (SI-RNTI), and the first control channel carries scheduling information of the first data channel.
  • SI-RNTI system information RNTI
  • the network device can transmit a plurality of first control channels and a plurality of first data channels to the UE.
  • the CRC of the information carried by the first control channel of any one of the multiple first control channels is scrambled by using an SI-RNTI, and the different first data channels of the multiple first data channels may carry different SIBs.
  • One of the plurality of first data channels carries an SIB, and the SIB includes M search space configurations, and M is an integer greater than or equal to 1.
  • the system message and the SIB are mainly messages directed to a group of UEs, and the group of UEs may be all UEs in the cell or part of the UE. If the group of UEs is all UEs in the cell, the system message may also be referred to as a public message or a cell message.
  • the SI-RNTI may also be referred to as another RNTI, and may be regarded as an identifier of the system information corresponding to the system information, and may be used to scramble the CRC of the information carried by the control channel corresponding to the data channel carrying the system information.
  • the UE receives the first data channel and obtains M search space configurations.
  • the first data channel carries the M search space configurations. If the first data channel carries the system message, the system message includes M search space configurations, and the UE receives the first data channel, obtains a system message, and obtains M search space configurations included in the system message. If the first data channel carries the SIB, the SIB includes M search space configurations, and the UE receives the first data channel, obtains the SIB, and obtains M search space configurations included in the SIB. Where M is an integer greater than or equal to 1.
  • the UE receives the first control channel, detects the first control channel in the common search space, decodes the first control channel according to the SI-RNTI, and obtains scheduling information of the first data channel, so that The UE can receive the first data channel according to the scheduling information.
  • the UE sends an access preamble to the network device.
  • the UE sends an access preamble to the network device through the random access channel, and may also be described as the UE sending the access preamble to the network device at the resource location of the random access channel.
  • the number of available resource locations of the random access channel is at least one, and the number of available access preambles is at least one.
  • the UE may select one resource location from at least one available resource location of the random access channel, select one access preamble from at least one available access preamble, and send a selection to the network device through the random access channel at the selected resource location. Access preamble.
  • the UE may also send the configured access preamble to the network device through the random access channel according to a resource location configured by the network device and an access preamble.
  • the network device receives the access preamble sent by the UE.
  • the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration indication.
  • the search space configuration indication is used to indicate a search space configuration for the UE, and the search space is configured as a search space configuration in the M search space configurations.
  • the M search space configurations are the M search space configurations described in step 401.
  • the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, the MAC PDU includes at least one resource configuration, and any one of the at least one resource configuration is configured to configure a search space of the control channel for the UE.
  • the MAC PDU may further include an access preamble identifier or an access preamble identifier and a MAC RAR for transmitting a random access response to the UE through the MAC PDU in the access process.
  • the MAC PDU is any one of the following first MAC PDU to third MAC PDU.
  • the first type of MAC PDU includes N1 access preamble identifiers and a resource configuration, and N1 is an integer greater than or equal to 1.
  • the N1 access preamble identifiers may be included in a MAC header of the MAC PDU.
  • FIG. 7(a) is a schematic structural diagram of a first type of MAC PDU. As shown in FIG. 7(a), the first type of MAC PDU includes a MAC header and a resource configuration, and the MAC header includes N1 access preamble identifiers, and a MAC address.
  • a resource configuration included in the PDU is used to indicate a resource configuration of a group of UEs.
  • FIG. 7(b) is a schematic diagram of a possible extended structure of the first type of MAC PDU shown in FIG. 7(a).
  • the first type of MAC PDU may further include N1.
  • the MAC RAR, the N1 MAC RARs, and the N1 access preamble identifiers are in one-to-one correspondence, and may also be described as one of the N1 MAC RARs corresponding to one of the N1 access preamble identifiers.
  • the N1 MAC RARs correspond to the N1 access preambles corresponding to the N1 access preamble identifiers.
  • the access preamble identifier may be an identifier of the access preamble or an index of the access preamble, and may be an access preamble itself, which is not limited in this application.
  • the MAC header and resource configuration in FIG. 7(b) may be combined as a MAC header.
  • FIG. 8 is a schematic diagram of a possible structure of a MAC RAR according to an embodiment of the present disclosure. As shown in FIG. 8, the MAC RAR may include UL scheduling information, a temporary cell RNTI (Cellular RNTI, C-RNTI for short), and timing. Timing advance (TA) command.
  • TA Timing advance
  • the second type of MAC PDU includes N2 access preamble identifiers and N2 resource configurations, and N2 is an integer greater than or equal to 1.
  • the N2 access preamble identifiers may be included in a MAC header of the MAC PDU.
  • FIG. 9(a) is a schematic diagram of a possible structure of a second type of MAC PDU. As shown in FIG. 9(a), the MAC PDU includes a MAC header and N2 resource configurations, and the MAC header includes N2 access preamble identifiers, N2.
  • the access preamble identifier and the N2 resource configurations are in one-to-one correspondence, and one of the N2 resource configurations may be associated with one of the N2 access preamble identifiers.
  • FIG. 9(b) is a schematic diagram showing a possible extension structure of the second type of MAC PDU shown in FIG. 9(a).
  • the MAC PDU may further include N2 MAC RARs and N2 MAC RARs.
  • N2 MAC RARs N2 MAC RARs
  • One-to-one correspondence with the N2 resource configurations included in the MAC PDU, the N2 MAC RARs and the N2 access preambles included in the MAC PDU are in one-to-one correspondence.
  • the MAC header and the N2 resource configurations may be combined as a MAC header.
  • the MAC RAR included in the second type of MAC PDU is the same as the MAC RAR included in the first type of MAC PDU, and is not described here.
  • the MAC PDU includes a MAC header and N3 MAC RARs
  • the MAC header includes N3 access preamble identifiers
  • N3 access preamble identifiers and N3 MAC RARs are in a one-to-one correspondence
  • any one of the N3 MAC RARs includes a resource configuration
  • the resource configuration may be described as a resource configuration corresponding to the MAC RAR
  • the resource configuration may also be described as corresponding to the MAC RAR.
  • Access the resource configuration corresponding to the preamble identifier may also be included in the MAC RAR, and the other information may be UL scheduling information, a temporary C-RNTI or a TA command.
  • the network device can learn the bandwidth supported by the UE, the network The device can flexibly configure UE-specific resources for the UE, thereby providing a flexible forward-compatible communication system.
  • the bandwidth of the resource configured by the network device for the UE is less than or equal to the bandwidth supported by the UE, otherwise the UE cannot perform data transmission on the resource.
  • Any one of the at least one resource configuration included in the foregoing MAC PDU may be a search space configuration indication.
  • the MAC PDU may be any one of the foregoing first type of MAC PDU to the third type of MAC PDU.
  • the network device may also send a second control channel to the UE, where the CRC of the information carried by the second control channel is scrambled by using a random access RNTI (RA-RNTI), and the information carried by the second control channel includes Scheduling information of the second data channel.
  • RA-RNTI may also be referred to as another RNTI, and may be regarded as an RAR identifier, which is used to scramble the CRC of the information carried by the control channel corresponding to the data channel carrying the RAR.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains a search space configuration indication included in the MAC PDU.
  • the UE determines a search space configuration of the UE according to the search space configuration indication. If the MAC PDU is the first type of MAC PDU, if the access preamble corresponding to one access preamble identifier included in the MAC header of the MAC PDU is the same as the access preamble sent by the UE to the network device, the UE configures the search space included in the MAC PDU.
  • the UE uses the one.
  • the search space configuration indication corresponding to the access preamble identifier is used as the search space configuration indication of the UE, that is, the search space configuration indicated by the L information bits included in the search space configuration indication is used as the search space configuration of the UE.
  • the UE may also determine other information according to the MAC PDU. If the MAC PDU includes the MAC RAR, the access preamble corresponding to the access preamble of the MAC PDU and the access preamble sent by the UE to the network device are the same, and the UE considers that the random access channel it sends may be the network.
  • the device receives the MAC RAR corresponding to the access preamble as the MAC RAR of the UE, and the information included in the MAC RAR is used as the information configured by the network device for the UE. For example, the temporary information included in the MAC RAR is used.
  • the C-RNTI serves as a temporary C-RNTI for the UE.
  • the UE may also receive the second control channel, detect the second control channel in the common search space or the UE-specific search space, and decode the second control channel according to the RA-RNTI to obtain the second data.
  • the scheduling information of the channel enables the UE to receive the second data channel according to the scheduling information.
  • Flexible configuration of scheduling information of the second data channel can be implemented by carrying the scheduling information of the second data channel by using the second control channel, and the design can enable the data transmission of the second data channel to match the channel of the second data channel for data transmission Conditions to improve the quality of data transmission.
  • the process of the first resource configuration provided by the embodiment of the present application may be applied to an access process. If the access type is contention-based access, the process of the first resource configuration may further include steps 404 and 405 for performing conflict resolution in the access process.
  • the UE sends a message 3 to the network device.
  • the UE receives the MAC PDU. If the access preamble corresponding to one of the access preamble identifiers included in the MAC PDU and the access preamble sent by the UE to the network device are the same, the UE according to the UL scheduling included in the MAC RAR corresponding to the access preamble identifier
  • the information sends a data channel carrying the Msg3 to the network device, and the Msg3 may include the UE identifier and the UE capability information.
  • the network device receives the data channel carrying the Msg3.
  • the network device sends a message 4 to the UE.
  • the network device sends a data channel carrying the Msg4 and a control channel corresponding to the data channel to the UE, where the Msg4 includes the UE identifier, and the CRC of the information carried by the control channel is scrambled by using the temporary C-RNTI of the UE.
  • the network device selects, from the search space indicated by the UE in step 403, the resource location of the control channel corresponding to the data channel carrying the Msg4, and sends the control channel to the UE at the selected resource location.
  • the UE receives the control channel and detects the control channel in the search space indicated by the UE in step 403.
  • the UE decodes the control channel according to the temporary C-RNTI of the UE, obtains scheduling information of the data channel carrying the Msg4, and receives the data channel carrying the Msg4 according to the scheduling information, to obtain the UE identifier included in the Msg4. If the UE identifier is the same as the UE identifier included in the Msg3 sent by the UE to the network device, the UE considers that the UE successfully accesses the network device, and uses the temporary C-RNTI of the UE as the C-RNTI of the UE, as the UE is in the cell.
  • the specific identification carries out UE-specific data transmission between the UE and the network device or between the UE and the UE.
  • the C-RNTI is used to scramble the CRC of the information carried by the UE-specific control channel corresponding to the UE-specific data channel.
  • step 1101 the UE sends an access preamble to the network device.
  • Step 1101 is the same as step 402.
  • the network device sends a second data channel to the UE, the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration.
  • the network device sends a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one resource configuration.
  • the MAC PDU in step 1102 is the same as any one of the first MAC PDU to the third MAC PDU described in step 403.
  • the MAC PDU in the step 403 is different from the MAC PDU in the step 1102. Only the specific content of the resource configuration included in the MAC PDU is different.
  • the resource included in the MAC PDU is configured as the search space configuration indication in step 403.
  • the resources included in the MAC PDU are configured as a search space configuration.
  • the search space configuration of the at least one search configuration included in the MAC PDU in step 1102 is the same as the search space configuration described in step 401, and details are not described herein again.
  • the UE receives the second data channel, obtains the MAC PDU carried by the second data channel, and obtains at least one search space configuration included in the MAC PDU.
  • the UE determines a search space configuration of the UE according to at least one search space configuration included in the MAC PDU. If the MAC PDU is the first type of MAC PDU, if the access preamble corresponding to one access preamble identifier included in the MAC header of the MAC PDU is the same as the access preamble sent by the UE to the network device, the UE configures the search space included in the MAC PDU. As the search space configuration of the UE.
  • the UE uses a certain search space configuration as the search space configuration of the UE, and may also be described as the search space corresponding to the search space configuration by the UE as the search space of the UE. If the MAC PDU is the second MAC PDU or the third MAC PDU, if the access preamble corresponding to one access preamble identifier included in the MAC header of the MAC PDU is the same as the access preamble sent by the UE to the network device, the UE uses the connection. The search space configuration corresponding to the preamble identifier is used as the search space configuration of the UE.
  • the UE may further obtain other information according to the MAC PDU; the network device may further send the second control channel to the UE; if the network device sends the second control channel to the UE, The UE may also receive the second control channel; the flow of the second search space configuration may also be applied to the access process, and if the access type is contention access, the UE and the network device may also transmit the message 3 and the message 4.
  • the network device may further obtain other information according to the MAC PDU; the network device may further send the second control channel to the UE; if the network device sends the second control channel to the UE, The UE may also receive the second control channel; the flow of the second search space configuration may also be applied to the access process, and if the access type is contention access, the UE and the network device may also transmit the message 3 and the message 4.
  • the network device and the UE include corresponding hardware structures and/or software modules, and the above functions can be implemented in the form of hardware, software, or hardware plus software. Whether a function is implemented in hardware, software, or hardware plus software depends on the specific application and design constraints of the solution.
  • FIG. 12 is a schematic structural diagram of an apparatus 1201 according to an embodiment of the present application.
  • the device 1201 may be a network device, or may be a device applied to the network device. When the device is applied to the network device, the device can support the network device to implement the function of the network device described in the resource configuration method.
  • the device may be a chip system, and the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • a first design of the device 1201 provided by the embodiment of the present application is described below with reference to FIG.
  • the device 1201 may be the network device described in the method related to FIG. 2 or the method in FIG.
  • the device 1201 includes a transmitting module/receiving module 1201_1.
  • the transmitting module/receiving module may also be referred to as a transceiver module.
  • the transmitting module/receiving module 1201_1 is configured to send a first data channel to the UE, where the first data channel carries M search space configurations, and M is an integer greater than or equal to 1.
  • the transmitting module/receiving module 1201_1 may be further configured to send a first control channel to the UE, where the CRC of the information carried by the first control channel is scrambled by using an SI-RNTI, where the first control channel carries scheduling information of the first data channel.
  • the transmitting module/receiving module 1201_1 is further configured to send a second data channel to the UE, where the second data channel carries a MAC PDU, where the MAC PDU includes at least one search space configuration indication.
  • the search space configuration indication is used to indicate a search space configuration for the UE, where the search space is configured as a search space configuration included in the foregoing M search space configurations.
  • the transmitting module/receiving module 1201_1 can also be configured to send a second control channel to the UE, the CRC of the information carried by the second control channel is scrambled using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the transmitting module/receiving module 1201_1 is further configured to receive an access preamble sent by the UE.
  • the device 1201 may further include a determining module 1201_2, configured to determine the M search space configurations carried by the first data channel and the search space configuration indication included in the MAC PDU carried by the second data channel. If the device device 1201 includes a determination module 1201_2, the determination module 1201_2 and the transmission module/receiving module 1201_1 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules.
  • FIG. 13 is a schematic structural diagram of a device 1301 according to an embodiment of the present application.
  • the device 1301 may be a UE, and may be a device applied to the UE. When the device is applied to the UE, the device can support the UE to implement the function of the UE described in the resource configuration method.
  • the device may be a chip system, and the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • a first design of the apparatus 1301 provided by the embodiment of the present application is described below with reference to FIG. Illustratively, the device 1301 may be the UE described in the method of FIG. 2 or the method described in FIG.
  • the device 1301 includes a transmitting module/receiving module 1301_1.
  • the transmitting module/receiving module 1301_1 is configured to receive the first data channel, and obtain M search space configurations, where the first data channel carries the M search space configurations, and M is an integer greater than or equal to 1.
  • the transmitting module/receiving module 1301_1 is further configured to receive the first control channel, where the CRC of the information carried by the first control channel is scrambled by using an SI-RNTI, where the first control channel carries scheduling information of the first data channel.
  • the transmitting module/receiving module 1301_1 is further configured to receive the second data channel, obtain a MAC PDU carried by the second data channel, and obtain a search space configuration indication included in the MAC PDU.
  • the transmitting module/receiving module 1301_1 can also be configured to receive the second control channel, the CRC of the information carried by the second control channel is scrambled using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the device 1301 may further include a determining module 1301_2, configured to determine a search space configuration of the UE according to the search space configuration indication obtained by the UE.
  • the transmitting module/receiving module 1301_1 and the determining module 1301_2 are coupled. If the MAC PDU is any one of the first MAC PDU to the third MAC PDU, the determining module 1301_2 determines the search space configuration of the UE according to the search space configuration indication according to the corresponding method in step 403, and the transmitting module
  • the receiving module 1301_1 is further configured to send an access preamble to the network device.
  • the device 1201 may be the network device described in the method related to FIG. 3 or the method in FIG. 11; or may be a device applied to a network device, and when the device is applied to a network device, can support the network device to implement FIG.
  • the method involved or the function of the network device described in the method of FIG. As shown in FIG. 12, the device 1201 includes a transmitting module/receiving module 1201_1.
  • the transmitting module/receiving module 1201_1 is configured to send a second data channel to the UE, where the second data channel carries a MAC PDU, and the MAC PDU includes at least one search space configuration.
  • the transmitting module/receiving module 1201 is further configured to send a second control channel to the UE, where the CRC of the information carried by the second control channel is scrambled using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the transmitting module/receiving module 1201_1 is further configured to receive an access preamble sent by the UE.
  • the device 1201 may further include a determining module 1201_2, configured to determine the at least one search space configuration. If the device 1201 includes a determination module 1201_2, the determination module 1201_2 and the transmission module/receiving module 1201_1 are coupled.
  • the device 1301 may be the UE described in the method of FIG. 3 or the method described in FIG. 11; or may be a device applied to the UE, and when the device is applied to the UE, can support the UE to implement the method in FIG. 3 or The function of the UE described in the method of Figure 11.
  • the device 1301 includes a transmitting module/receiving module 1301_1.
  • the transmitting module/receiving module 1301_1 is configured to receive the second data channel, obtain the MAC PDU carried by the second data channel, and obtain at least one search space configuration included in the MAC PDU.
  • the transmitting module/receiving module 1301_1 can also be configured to receive the second control channel, the CRC of the information carried by the second control channel is scrambled using the RA-RNTI, and the second control channel carries the scheduling information of the second data channel.
  • the apparatus 1301 may further include a determining module 1301_2, configured to determine a search space configuration of the UE according to the at least one search space configuration obtained by the UE.
  • the transmitting module/receiving module 1301_1 and the determining module 1301_2 are coupled. If the MAC PDU is any one of the first MAC PDU to the third MAC PDU, the determining module 1301_2 determines the search space configuration of the UE according to the at least one search space configuration described in the corresponding method in step 1102, and transmits
  • the module/receive module 1301_1 is also configured to send an access preamble to the network device.
  • the modules in the device embodiments of the present application may be software, hardware or software plus hardware.
  • the transmitting module/receiving module can be a transmitter/receiver.
  • the determining module in the device embodiment of the present application may be software, hardware or software plus hardware.
  • the functionality of the determining module can be implemented by a processor.
  • FIG. 14 is a schematic structural diagram of an apparatus 1401 according to an embodiment of the present application.
  • the device 1401 may be a network device or a device applied to the network device. When the device is applied to a network device, it can support the network device to implement the functions of the network device described in the foregoing resource configuration method.
  • the device may be a chip system, and the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the device 1401 includes a transmitter/receiver 1401_1 that functions as the transmitting module/receiving module 1201_1 included in the device 1201 depicted in FIG.
  • the device 1401 may further include a processor 1401_2 having the function of the determining module 1201_2 included in the device 1201 described in FIG.
  • the transmitter/receiver may also be referred to as a transceiver.
  • FIG. 15 is a schematic structural diagram of an apparatus 1501 according to an embodiment of the present application.
  • the device 1501 may be a UE, or may be a device applied to the UE. When the device is applied to the UE, it can support the UE to implement the functions of the UE described in the foregoing resource configuration method.
  • the device may be a chip system, and the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the device 1501 includes a transmitter/receiver 1501_1 that functions as the transmitting module/receiving module 1301_1 included in the device 1301 described in FIG.
  • the device 1501 may further include a processor 1501_2 having the function of the determining module 1301_2 included in the device 1301 described in FIG.
  • the processor in the embodiment of the present application may be a central processing unit (CPU), a general-purpose processor network processor (NP Processor) or a digital signal processing (DSP).
  • the processor can also be any combination of the three processors described above.
  • the processor can include a hardware chip.
  • the hardware chip may be an Application-Specific Integrated Circuit (ASIC) or a Programmable Logic Device (PLD), or may be a combination of an ASIC and a PLD.
  • the PLD may be a Complex Programmable Logic Device (CPLD), a Field-Programmable Gate Array (FPGA) or a Generic Array Logic (GAL). It is any combination of CPLD, FPGA and GAL.
  • the apparatus in the device embodiment of the present application may further include a storage module for storing the program instructions of the apparatus or storing program instructions and data of the apparatus.
  • the storage module is software, hardware or software plus hardware.
  • the storage module may include a volatile memory, such as a random-access memory (RAM); the storage module may also include a non-volatile memory.
  • the network device may include any number of transmitting modules/receiving modules, determining modules or storage modules, all of which can implement the device of the present application. Within the scope of protection of this application.
  • the module division of the device is a logical function division, and the actual implementation may have another division manner.
  • each functional module of the device may be integrated into one module, or each functional module may exist separately, or two or more functional modules may be integrated into one module.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, a base station, a network device, a UE, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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

Abstract

L'invention concerne un procédé, un appareil et un système de configuration de ressources. Le procédé comprend les étapes suivantes : un dispositif de réseau envoie un premier canal de données à un équipement utilisateur (UE), le premier canal de données portant M configurations d'espace de recherche, M étant un nombre entier supérieur ou égal à un ; et le dispositif de réseau envoie un second canal de données à l'UE, le second canal de données portant au moins un indicateur de configuration d'espace de recherche, l'indicateur de configuration d'espace de recherche servant à indiquer une configuration d'espace de recherche à l'UE, la configuration d'espace de recherche étant une configuration d'espace de recherche comprise dans les M configurations d'espace de recherche. Au moyen de la solution de configuration de ressources fournie dans la présente invention, le dispositif de réseau peut configurer de manière souple une position de ressource pour l'UE, de sorte que le dispositif de réseau puisse configurer de manière souple des ressources vides dans une bande passante de système en fonction des besoins, et il peut introduire d'autres systèmes de communication dans les ressources vides, ce qui permet d'obtenir un système de communication souple post-compatible.
PCT/CN2018/082246 2017-05-05 2018-04-09 Procédé, appareil et système de configuration de ressources Ceased WO2018201850A1 (fr)

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