WO2019095927A1 - 随机接入方法、网络设备及终端 - Google Patents

随机接入方法、网络设备及终端 Download PDF

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Publication number
WO2019095927A1
WO2019095927A1 PCT/CN2018/110966 CN2018110966W WO2019095927A1 WO 2019095927 A1 WO2019095927 A1 WO 2019095927A1 CN 2018110966 W CN2018110966 W CN 2018110966W WO 2019095927 A1 WO2019095927 A1 WO 2019095927A1
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WIPO (PCT)
Prior art keywords
random access
actually transmitted
downlink signal
access resource
index
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PCT/CN2018/110966
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English (en)
French (fr)
Inventor
黄煌
颜矛
高宽栋
邵华
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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 CA3084395A priority Critical patent/CA3084395A1/en
Priority to EP18878496.1A priority patent/EP3687256B1/en
Priority to MX2020004998A priority patent/MX2020004998A/es
Publication of WO2019095927A1 publication Critical patent/WO2019095927A1/zh
Priority to US16/875,292 priority patent/US11706807B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to a wireless communication technology, and in particular, to a random access method, a network device, and a terminal.
  • beamforming techniques are employed to limit the energy of the transmitted signal to a certain beam direction, thereby increasing the efficiency of signal reception.
  • the beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and obtaining higher network capacity.
  • beamforming technology has also brought challenges to system design while improving the efficiency of wireless communication networks.
  • limiting the energy of the transmitted signal to a certain area requires multiple beams to achieve full range coverage.
  • the transmit beam and the receive beam need to be matched such that the receive beam obtains a signal of better quality from the transmit beam signal.
  • the beam scanning is performed in a time division manner, that is, the time at which the base station transmits or receives signals on multiple beams is different. Therefore, before the base station communicates with the terminal, uplink synchronization and downlink synchronization are first required.
  • the base station sends a downlink synchronization signal by using multiple transmit beams, and the terminal uses one or more receive beams to receive and detect the downlink synchronization signal, and determines the optimal downlink transmit beam and receive beam pair, downlink time, and system information. .
  • the uplink synchronization is completed by means of a random access procedure, and the terminal first sends a random access signal, and the base station detects the random access signal, obtains the best uplink transmit beam, the receive beam pair, the uplink time, and the like, and implements the uplink of the base station and the terminal. Synchronize.
  • the present application provides a random access method, a network device, and a terminal, which are used to indicate related information in a random access process.
  • the application provides a random access method, including:
  • the network device determines configuration information, where the configuration information is used to indicate at least one of: a random access preamble transmitted on a random access resource, and a contention based random access preamble transmitted on a random access resource.
  • the number, the number of non-contention based random access preambles transmitted on a random access resource, the number of random access preambles associated with one downlink signal, the number of non-contention based random access preambles associated with one downlink signal, and one downlink signal The number of associated contention-based random access preambles, and the number of downlink signals actually transmitted by a random access resource;
  • the network device sends the configuration information to the terminal.
  • the actual number of downlink signals transmitted by the one random access resource is determined according to the actually transmitted downlink signal and/or the actually transmitted downlink signal group.
  • the configuration information when the configuration information indicates the number of downlink signals actually transmitted by a random access resource, the configuration information includes: an index of the number of downlink signals actually transmitted by a random access resource.
  • the method further includes:
  • the network device determines, according to the number of downlink signals actually transmitted, the number of bits occupied by the index of the number of downlink signals actually transmitted by the one random access resource.
  • the method further includes:
  • the network device determines, according to the number of random access preambles transmitted on a random access resource, the number of bits occupied by the index of the contention-based random access preamble transmitted on one random access resource in the configuration information.
  • the method further includes:
  • the network device determines, according to the number of downlink signals actually transmitted by a random access resource, the number of bits occupied by the index of the number of random access preambles associated with one downlink signal in the configuration information.
  • a random access preamble index associated with a downlink signal is a non-contiguous or continuous random access preamble index.
  • the configuration information is specifically used to indicate: the number of random access preambles transmitted on a random access resource, the number of non-contention based random access preambles associated with one downlink signal, and one random access resource.
  • the number of non-contention based random access preambles associated with one downlink signal and the number of downlink signals actually transmitted by a random access resource.
  • the application provides a random access method, including:
  • configuration information sent by the network device, where the configuration information is used to indicate at least one of: a random access preamble transmitted on a random access resource, and a contention-based random transmission on a random access resource.
  • the terminal sends a random access preamble to the network device according to the random access resource associated with the actually transmitted downlink signal.
  • the actual number of downlink signals transmitted by the one random access resource is determined according to the actually transmitted downlink signal and/or the actually transmitted downlink signal group.
  • the configuration information when the configuration information indicates the number of downlink signals actually transmitted by a random access resource, the configuration information includes: an index of the number of downlink signals actually transmitted by a random access resource.
  • the number of bits occupied by the index of the number of random access preambles associated with one downlink signal in the configuration information is determined according to the number of downlink signals actually transmitted by a random access resource.
  • a random access preamble index associated with a downlink signal is a non-contiguous random access preamble index.
  • the configuration information is specifically used to indicate: the number of random access preambles transmitted on a random access resource, the number of non-contention based random access preambles associated with one downlink signal, and one random access resource.
  • the number of non-contention based random access preambles associated with one downlink signal and the number of downlink signals actually transmitted by a random access resource.
  • the present application provides a network device comprising means or means for performing the methods of the first aspect described above and the various implementations of the first aspect.
  • the present application provides a terminal comprising means or means for performing the methods of the second aspect and various implementations of the first aspect described above.
  • the application provides a device, the device includes a processor and a memory, the memory is used to store a program, and the processor calls a program stored in the memory to perform the method provided by the first aspect of the application, where the device may be
  • a network device can also be a chip on a network device.
  • the application provides a device, the device includes a processor and a memory, the memory is used to store a program, and the processor calls a program stored in the memory to perform the method provided by the first aspect of the application, where the device may be
  • the terminal can also be a chip on the terminal device.
  • the present application provides a computer storage medium for storing a program for performing any one of the methods of the above first to fourth aspects.
  • the network device determines configuration information, and sends configuration information to the terminal.
  • the configuration information indicates at least one of: a random access preamble transmitted on a random access resource, a contention-based random access preamble transmitted on a random access resource, and a random access.
  • the number of non-contention based random access preambles transmitted on the resource, the number of random access preambles associated with one downlink signal, the number of non-contention based random access preambles associated with one downlink signal, and the contention based random access associated with one downlink signal The number of incoming signals, the number of downlink signals actually transmitted by a random access resource.
  • the terminal sends the random access preamble according to the configuration information, so that the network device indicates the information about the random access to the terminal, so as to complete the random access process.
  • FIG. 1 is a schematic structural diagram of a communication system provided by the present application.
  • FIG. 2 is a schematic flowchart of a random access method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an association relationship according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to another embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a simplified terminal device according to an embodiment of the present application.
  • the embodiments of the present application can be applied to a wireless communication system.
  • the wireless communication system mentioned in the embodiments of the present application includes but is not limited to: Narrow Band-Internet of Things (NB-IoT), global mobile Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA) 2000 System (Code Division Multiple Access, CDMA2000), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), and Next Generation 5G Mobile Communication System
  • eMBB Enhanced Mobile Broad Band
  • URLLC Massive Machine-Type Communications
  • mMTC Massive Machine-Type Communications
  • the terminal device includes but is not limited to a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), a mobile phone (handset), and a portable device.
  • the terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal can be a mobile phone (or "cellular" phone), a computer with wireless communication function.
  • the terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device or device.
  • FIG. 1 is a schematic structural diagram of a communication system provided by the present application.
  • the communication system 01 includes a network device 101 and a terminal 102.
  • the network device 101 can also be connected to the core network.
  • Network device 101 may also be in communication with an Internet Protocol (IP) network 200, such as the Internet, a private IP network, or other data network.
  • IP Internet Protocol
  • Network devices provide services to terminals within coverage.
  • network device 101 provides wireless access to one or more terminals within range of network device 101.
  • network devices can also communicate with each other.
  • Network device 101 may be a device for communicating with a terminal.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolved Node B, eNB evolved base station
  • the network device may also be a relay station, an access point, an in-vehicle device, or the like.
  • D2D Device to Device
  • the network device may also be a terminal functioning as a base station.
  • the terminal may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem, and various forms of user equipment (UE), mobile stations (mobile) Station, MS), etc.
  • the downlink signal may refer to a synchronization signal block (SS block).
  • the SS block may correspond to one or more OFDM symbols.
  • the SS block includes at least one of the following: a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Physical Broadcast Channel Block (PBCH), and a Demodulation Reference Signal. , DMRS);
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel Block
  • DMRS Demodulation Reference Signal
  • SS block can also be called SS/PBCH block.
  • the signals in the SS block or SSB/PBCH block can be the same antenna port.
  • the downlink signal may also be at least one of a Channel State Information Reference Signal (CSI-RS) and a CSI-RS Resource Index, which is not limited in this application.
  • CSI-RS Channel State Information Reference Signal
  • CSI-RS Resource Index CSI-RS Resource Index
  • a plurality of downlink signals may constitute a downlink signal group.
  • one downlink signal group may include up to 8 downlink signals.
  • an SS block group can include up to 8 SS blocks.
  • the present application proposes a new random access method for the above technical problem.
  • the index number of the downlink signal in this application can be edited in multiple ways, and can be pre-configured according to specific requirements:
  • All the downlink signals actually transmitted are uniformly indexed, that is, the downlink signal group is not distinguished. For example, if 49 downlink signals are actually transmitted, the index number is 0 to 48, or 1 to 49, and the like.
  • the downlink signals in the downlink signal groups of the actual transmission are respectively indexed.
  • the downlink signal group actually transmitted is indexed, for example, a total of 8 groups of downlink signals actually transmitted, and the index numbers are respectively 0. ⁇ 7 or 1 ⁇ 8, etc.
  • a group of actually transmitted downlink signal groups actually transmits 8 downlink signals, and the index numbers are 0 to 7 or 1 to 8, respectively.
  • Another group of actually transmitted downlink signal groups also actually transmits 8 downlink signals, and the index numbers are 0 to 7 or 1 to 8, respectively.
  • each downlink signal group that is actually transmitted may be the same or different, and is not limited in this application.
  • the index number is uniformly indexed for all downlink signals, and the downlink signal group is not distinguished, and the actual transmission is not distinguished. For example, there are 64 downlink signals that may be transmitted, and the index numbers are 0 to 63 or 1 to 64, respectively.
  • All downlink signal groups are indexed. For example, there are 8 groups of downlink signals that may be transmitted. The index numbers are 0 to 7 or 1 to 8, respectively. Then, all the downlink signals that may be transmitted in each downlink signal group are indexed. For example, a group of downlink signal groups includes eight downlink signals, and the index numbers are 0 to 7 or 1 to 8, respectively.
  • each downlink signal group may be the same or different, and is not limited in this application.
  • FIG. 2 is a schematic flowchart of a random access method according to an embodiment of the present disclosure. As shown in FIG. 2, the method includes:
  • the network device determines configuration information.
  • the configuration information is used to indicate at least one of: a random access preamble number transmitted on a random access resource, and a contention-based random access preamble number transmitted on a random access resource (number of preambles for CBRA) (Contention Based Random Access)), the number of preambles for CFRA (Contention Free Random Access) transmitted on a random access resource, and the number of random access preambles associated with a downlink signal.
  • the configuration information may be composed of a plurality of bits.
  • each information to be indicated is represented by a value of one or more bits.
  • the configuration information can include any combination of the above information.
  • the foregoing configuration information specifically indicates: a random access preamble number transmitted on a random access resource, a non-contention based random access preamble number associated with one downlink signal, and a random access resource association.
  • the terminal may derive a contention-based random access preamble associated with a downlink signal according to the information indicated by the configuration information.
  • the foregoing configuration information specifically indicates: the number of non-contention-based random access preambles associated with one downlink signal, and the number of downlink signals actually transmitted by a random access resource.
  • the downlink signal can be understood as the downlink signal actually transmitted.
  • the downlink signals mentioned in this application can be understood as the downlink signals actually transmitted.
  • the network device sends configuration information to the terminal.
  • the terminal determines, according to the configuration information, a random access resource associated with the actually transmitted downlink signal.
  • the terminal sends a random access preamble to the network device according to the random access resource associated with the actually transmitted downlink signal.
  • the random access preamble to be sent to the network device may include: a contention-based random access preamble and/or a non-contention-based random access preamble, which may be determined according to an implementation scenario, and is not limited herein.
  • the network device configures the information about the random access resource, the random access preamble, and the downlink signal to the terminal by using the configuration information to the terminal configuration information, and the terminal may determine the association relationship between the actually transmitted downlink signal and the random access resource according to the configuration information, and The random access preamble transmitted on the random access resource sends a random access preamble to the network device.
  • the network device determines configuration information and sends configuration information to the terminal.
  • the configuration information indicates at least one of: a random access preamble transmitted on a random access resource, a contention-based random access preamble transmitted on a random access resource, and a random access.
  • the number of non-contention based random access preambles transmitted on the resource, the number of random access preambles associated with one downlink signal, the number of non-contention based random access preambles associated with one downlink signal, and the contention based random access associated with one downlink signal The number of incoming signals, the number of downlink signals actually transmitted by a random access resource.
  • the terminal sends the random access preamble according to the configuration information, so that the network device indicates the information about the random access to the terminal, so as to complete the random access process.
  • a random access channel (RACH) resource may include: information such as time and frequency of random access.
  • the time of the random access may be an orthogonal frequency division multiplexing (OFDM) symbol, a minislot, a time slot, a subframe, and a time period in which the time length is H basic time units, indicating that one can be sent.
  • the time required for a predefined random access preamble, the frequency of random access indicates the bandwidth required to transmit a predefined random access preamble, where H is greater than zero.
  • a random access resource is identified by two times of a random access time and a random access frequency, that is, a random access time and frequency defines a random access resource.
  • a random access time and frequency may define multiple random access resources.
  • a random access resource may also be referred to as a random access opportunity (RACH occasion/RACH transmission occasion/RACH opportunity/RACH chance, RO), or a random connection of one or more sets on a random access time frequency resource. Enter the lead.
  • RACH occasion/RACH transmission occasion/RACH opportunity/RACH chance, RO random access opportunity
  • RO random access time frequency resource
  • the number of downlink signals actually transmitted by a random access resource is determined according to the actually transmitted downlink signal and/or the actually transmitted downlink signal group.
  • the configuration information when the configuration information indicates the number of downlink signals actually transmitted by a random access resource, the configuration information includes: an index of the number of downlink signals actually transmitted by a random access resource.
  • each case may have an index, which may be indicated by a corresponding bit in the configuration information.
  • the configuration information indicates the number of downlink signals actually transmitted by a random access resource
  • the number of downlink signal groups of an actual transmission associated with a random access resource is indicated, and the number of downlink signals actually transmitted by a random access resource is indicated in combination with the number of downlink signals actually transmitted in the downlink signal group. It is assumed that the number of downlink signals actually transmitted in the downlink signal group actually transmitted is X, and the number of downlink signal groups actually transmitted is Y, and the index of the number of downlink signals actually transmitted by a random access resource may be min. (4, ceil(log2(X+Y))), or, min(4,ceil(log2(X+Y-1))). X and Y are integers greater than zero.
  • the number Z of contention-based random access preambles transmitted on a random access resource indicating the number of downlink signals actually transmitted by a random access resource
  • Z is an integer greater than 0.
  • the index of the number of downlink signals actually transmitted by a random access resource may be min(4, ceil(log2(Z))). Where ceil means round up and min means take a smaller value.
  • ceil means round up and min means take a smaller value.
  • the number of downlink signals actually transmitted is X*Y, where * indicates multiplication.
  • the frequency band may also be considered to determine the configuration information.
  • the frequency band is greater than 6 GHz, it is assumed that the number of downlink signals actually transmitted in the downlink signal group actually transmitted is X, and the number of downlink signal groups actually transmitted is Y, and the number of downlink signals actually transmitted by a random access resource is The number of bits occupied by the index may be: min(4, ceil(log2(X+Y))) or min(4, ceil(log2(X+Y-1))).
  • X and Y are integers greater than zero.
  • the number of downlink signals that are actually transmitted by a random access resource is indicated based on the number Z of contention-based random access preambles transmitted on a random access resource, and Z is an integer greater than 0.
  • the index of the number of downlink signals actually transmitted by a random access resource may be min(4, ceil(log2(Z))).
  • the index of the number of downlink signals actually transmitted by a random access resource may be any one of the following: min(4,ceil(log2(X+Y)), Ceil(log2(Z))), min(4, ceil(log2(X+Y-1)), ceil(log2(Z))).
  • the number of downlink signals actually transmitted by one random access resource indicated by different indexes is different.
  • the 16 cases in Table 1 include the association between the downlink signal group and the random access resource, and also the relationship between the downlink signal actually transmitted and the random access resource.
  • the number of downlink signals actually transmitted is Y', and the index of the number of downlink signals actually transmitted by a random access resource may be min (3, Log 2 (Y')), Y' is an integer greater than zero.
  • the number of downlink signals actually transmitted by a random access resource is indicated based on the number Z of contention-based random access preambles transmitted on a random access resource, and Z is an integer greater than 0.
  • the index of the number of downlink signals actually transmitted by a random access resource may be min(3, ceil(log 2(Y')), ceil(log 2(Z))).
  • the number of downlink signals actually transmitted is Y', and the index of the number of downlink signals actually transmitted by a random access resource may be min(2, Log 2 (Y')), Y' is an integer greater than zero.
  • the number of downlink signals that are actually transmitted by a random access resource is indicated based on the number Z of contention-based random access preambles transmitted on a random access resource, and Z is an integer greater than 0.
  • the index of the number of downlink signals actually transmitted by a random access resource may be min(2, ceil(log 2(Y')), ceil(log 2(Z))).
  • the number of downlink signals actually transmitted by a random access resource may also be determined according to the number of downlink signal groups actually transmitted by a random access resource. As shown in Table 2, the number of downlink signal groups actually transmitted by one random access resource indicated by different indexes is different, so that the number of indexes can be reduced, thereby reducing the bits used for indication in the configuration information to save resources.
  • the number of indexes may be determined according to the number of downlink signals actually transmitted. For example, only 4 downlink signals are actually transmitted, so only part of the data index in Table 2 may be reserved, for example, 0 to 4, thereby reducing the number of indexes.
  • the bits used for indication in the configuration information can be reduced to save resources.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource may be fixed to any one of 64, 128, and 256.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource may also be configured by the foregoing configuration information, for example, may be configured as any one of 64, 128, and 256. Or configured as one of 64, 128, using 1 bit for indication; or configured as any of 64, 256, using 1 bit for indication; or configured as any of 128, 256, using 1 bit Give instructions.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource is 64; when the frequency band is greater than 3 GHz and less than or equal to 6 GHz Configure the total number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource to be 128; configure a contention-based random access in a random access resource when the frequency band is greater than 6 GHz.
  • the sum of the number of preambles and the number of non-contention based random access preambles is 256.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource is 64; when the frequency band is greater than 6 GHz, a random configuration is configured.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in the access resources is 128 or 256.
  • the sum of the contention-based random access preamble and the non-contention-based random access preamble number in a random access resource may be configured to be 64 and 128.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource may be configured to be 128 and 256.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in one random access resource may be configured to be 64 and 128.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource may be configured to be 64 and 256.
  • the mapping relationship may also be pre-configured. For example, when the number of downlink signals actually transmitted by a random access resource is greater than a first preset threshold, the number of contention-based random access preambles in a random access resource is based on non-competition. The sum of the number of random access preambles is 128. When the number of downlink signals actually transmitted by a random access resource is less than or equal to the first preset threshold and greater than the second preset threshold, the number of contention-based random access preambles in a random access resource and non-contention based The sum of the number of random access preambles is 256.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource is 128.
  • the number of downlink signals actually transmitted by a random access resource is greater than a first preset threshold
  • the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource The sum is 128.
  • the sum of the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource Is 64.
  • the number of downlink signals actually transmitted by a random access resource is greater than a first preset threshold
  • the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource The sum is 256.
  • the number of downlink signals actually transmitted by a random access resource is less than or equal to a first preset threshold
  • the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource The sum is 64.
  • the number of downlink signals actually transmitted by a random access resource is greater than a first preset threshold
  • the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource The sum of the sum is 256.
  • the number of contention based random access preambles in a random access resource and the non-contention based randomization The sum of the number of access preambles is 128.
  • the network device determines, according to the number of downlink signals actually transmitted, the number of bits occupied by the index of the number of downlink signals actually transmitted by the random access resource.
  • the number of indexes can be determined, and then the number of bits required for the index can be determined. For example, in the case shown in Table 1, there are 16 indexes, so 4 bits are required to indicate. In the case shown in Table 2, there are 8 indexes, and 3 bits can be indicated.
  • the number of downlink signals actually transmitted by a random access resource may be any one of the following: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38 ,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63 , 64. It can be seen that the index of the number of downlink signals actually transmitted by a random access resource needs to be up to 6 bits.
  • the index of the number of downlink signals actually transmitted by a random access resource may be 4 bits, indicating: 1, 2, 3 10 cases of 4, 5, 6, 7, 8, 9, 10.
  • the index of the number of downlink signals actually transmitted by a random access resource may be 4 bits, indicating: 1, 2, 3, respectively. 11 cases of 4, 5, 6, 7, 8, 9, 10, 11.
  • the downlink signal actually transmitted by the random access resource may also be in various situations: for example, (1) an actually transmitted downlink signal is associated with a random access resource; or, (2) a plurality of actually transmitted downlink signals. Associate a random access resource; or (3) one actually transmitted downlink signal is associated with multiple random access resources; or (4) multiple actually transmitted downlink signals are associated with multiple random access resources.
  • the identification bits can be respectively allocated, that is, the manner in which the random access resource is associated with the downlink signal actually transmitted by one or more bits.
  • one (1) and (2) can share one identifier, and (3) and (4) share one identifier, so that only one bit can be indicated, thereby saving resources.
  • it may be further determined according to the number of random access preambles associated with an actually transmitted downlink signal, that is, an actual transmitted downlink signal is associated with different random access preambles corresponding to different situations.
  • a similar method can be used to distinguish between (3) and (4).
  • (1) and (2) are further distinguished according to the number of downlink signals actually transmitted by a random access resource, or (3) and (4) are distinguished. That is, the number of downlink signals actually transmitted by a random access resource is different, and the corresponding random access resources are associated with different downlink signals actually transmitted.
  • the number of downlink signals actually transmitted by a random access resource may be determined by the number of contention-based random access preambles and the number of non-contention-based random access preambles in a random access resource.
  • the number of downlink signals actually transmitted by a random access resource may be any of the following : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.
  • the number of downlink signals actually transmitted by a random access resource may be any of the following : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 , 26, 27, 28, 29, 30, 31, 32.
  • the number of downlink signals actually transmitted by a random access resource may be any of the following : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 ,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50 , 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64.
  • the index of the number of downlink signals actually transmitted by a random access resource is determined by the number of downlink signals actually transmitted.
  • the manner in which the random access resource is associated with the downlink signal actually transmitted may have at least four of the following:
  • the first type is a downlink signal associated with a random access resource
  • the second type is that multiple downlink signals are associated with one random access resource
  • the third type is a downlink signal associated with a random access resource
  • the fourth type is that multiple downlink signals are associated with multiple random access resources.
  • the first two can be divided into one class, and the latter two are divided into one class.
  • the network device can use 1 bit to indicate, and can occupy 1 bit in the above configuration information to indicate whether the network device adopts the former class or the latter.
  • One class for example, 0 represents the former class and 1 represents the latter class.
  • the number of random access preambles that may be further associated with one downlink signal indicates the first type or the second type, and the number of downlink signals associated with a random access resource may be used.
  • One is still the second. For example, the number of some random access preambles associated with a downlink signal is corresponding to the first mode, and the number of other random access preambles associated with one downlink signal corresponds to the second mode.
  • the third mode and the fourth mode can be distinguished in a similar manner, and details are not described herein again. That is, the number of random access preambles that may be further associated with one downlink signal indicates the third or fourth type, and the number of downlink signals associated with one random access resource may indicate whether it is the third or the fourth.
  • the network device determines, according to the number of random access preambles transmitted on a random access resource, the number of bits occupied by the index of the contention-based random access preamble transmitted on one random access resource in the configuration information.
  • the number of random access preambles transmitted on a random access resource is any one of the following: 64, 128, 256, and correspondingly, the number of contention-based random access preambles transmitted on a random access resource.
  • the index occupies 4 bits and may indicate one or more of the following: 4*k1, 8*k1, 16*k1, where k1 is an integer of 1-16.
  • an index of the number of contention-based random access preambles transmitted on one random access resource occupies 4 bits.
  • the index of the contention-based random access preamble transmitted on one random access resource accounts for 5 bits.
  • k2 is an integer from 1 to 32. (corresponds to the 5G standard proposal: Number of preambles for CBRA per RO: 5bits).
  • an index of the number of contention-based random access preambles transmitted on one random access resource occupies 5 bits.
  • One or more of the following may be indicated: 8*k2, 4*k1, 16*k1.
  • the index of the number of contention-based random access preambles transmitted on a random access resource occupies 4 bits.
  • the content of the contention-based random preamble in a random access resource may be indicated according to the number of random access preambles in a random access resource, for example, when the number of random access preambles in a random access resource is 64.
  • 4 bits may be used to indicate that the number of contention-based random preambles in a random access resource is 4*k1, where k1 is an integer of 1-16. It can also be expressed as 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64.
  • 4 bits may be used to indicate that the number of random preambles based on contention in a random access resource is 8*k1, and may also represent 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128.
  • 5 bits to indicate that the number of contention-based random preambles in a random access resource is 4*k2, and expand to 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52. , 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128.
  • the number of random access preambles in a random access resource is 256
  • 4 bits may be used to indicate that the number of random preambles based on contention in a random access resource is 16*k1
  • the expansion is represented as 16, 32, 48. 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 256.
  • 5 bits to indicate that the number of contention-based random preambles in a random access resource is 8*k2, or 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 256.
  • k3 is an integer from 1 to 64, and the expansion may be 4, 8, 12, 16, 20, 24, 28, 32. 36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,198,200,204,208,212,216,220,224,228,232,236,240,244,248,252,256.
  • the number of random access preambles associated with an actually transmitted downlink signal may be floor(M1/N1), where the number of contention-based random access preambles transmitted on one random access resource is M1, and one random access resource The number of downlink signals actually associated with the transmission N1.
  • M1 and N1 are integers greater than zero.
  • floor means rounding down.
  • the number of random access preambles associated with the B signals actually transmitted in the first chronological order is A+1, or the last B actual transmissions in time sequence
  • the number of random access preambles associated with the downlink signal is A+1.
  • the number of random access preambles associated with other actually transmitted downlink signals is A.
  • the network device determines, according to the number of downlink signals actually transmitted by the random access resource, the number of bits occupied by the index of the number of random access preambles associated with one downlink signal in the configuration information.
  • the number of bits occupied by the index can be finally determined according to the number of indexes that may exist.
  • the terminal may further determine, according to the configuration information, the association between the number of random access preambles and the random access resources, determine the association between the random access resources and the downlink signals actually transmitted, and “random access”. The relationship between the number of preambles and the actual transmitted downlink signals" and random access resources.
  • the terminal may determine the target random access resource according to the downlink relationship between the actually transmitted downlink signal, the random access resource, and the actually transmitted downlink signal. Combined with the association between the number of random access preambles and the random access resources, the target random access resources are used to send a random access preamble to the network device.
  • the number of downlink signals actually transmitted by a random access resource may be determined by the number of downlink signal groups actually transmitted by a random access resource.
  • all actually transmitted downlink signals in an actually transmitted downlink signal group are associated with one random access resource.
  • one random access resource is associated with up to eight downlink signals.
  • L is an integer greater than zero.
  • L actually transmitted downlink signals in an actually transmitted downlink signal group are associated with a random access resource.
  • the downlink signal of the specified index number in an actually transmitted downlink signal group is associated with the same random access resource. That is, the index number of the specific one or more downlink signals can be directly configured, and the downlink signals corresponding to the index numbers are associated with the same random access resource.
  • the remaining downlink signals that are actually transmitted may be associated with other random access resources, and are not described here.
  • the downlink signals are respectively indexed, and the downlink signals of the same index number in each of the actually transmitted downlink signal groups are associated with the same random access resource.
  • FIG. 3 is a schematic diagram of an association relationship according to an embodiment of the present application.
  • the downlink signal index actually transmitted in each downlink signal group actually transmitted is 0 to a, where a is the number of downlink signals actually transmitted in the downlink signal group actually transmitted, and a is an integer greater than 0. among them.
  • the actually transmitted downlink signal with the index number 0 in each of the actually transmitted downlink signal groups is associated with a random access resource; the actual transmission of the index number of each of the actually transmitted downlink signal groups is 1.
  • the downlink signal is associated with a random access resource, and so on, and will not be described again.
  • the same index number in the downlink signal group of the first L actually transmitted in the downlink signal group actually transmitted according to the index number sequence The downlink signals are associated with the same random access resource.
  • the downlink signals of the same index number in the downlink signal group that is actually transmitted are associated with the same random access resource.
  • the index number of the downlink signal associated with the same random access resource may be a continuous index number, for example, the downlink signals of index numbers 0 to (L-1) are associated with the same random access resource.
  • the index number of the downlink signal associated with the same random access resource may be a non-contiguous index number, which is not limited in this application.
  • the index number of the downlink signal associated with the same random access resource may be the same as the index number of the downlink signal associated with the same random access resource.
  • the index number of the downlink signal associated with the same random access resource is a continuous index number:
  • the downlink signal index number of the actual transmission associated with the i-th random access resource may be: i*floor(W1/X1) ⁇ (i+1)*floor(W1/X1)-1, where the downlink signal actually transmitted The number is W1, and the number of random access resources is X1. W1 and X1 are integers greater than zero.
  • the downlink signal index number of the actual transmission associated with the 0th random access resource is 0, 1, 2, .
  • the number of downlink signals actually transmitted by other random access resources except the last random access resource is the same.
  • the number of downlink signals actually transmitted by the last random access resource is greater than the number of downlink signals actually transmitted by other random access resources.
  • the number of downlink signals actually transmitted by the last random access resource is more than W1 mod X1 compared with the number of downlink signals actually transmitted by other random access resources.
  • the downlink signal index numbers of the actual transmissions associated with other random access resources are i*floor(W1/X1) to (i+1)*floor(W1/X1)-1.
  • the downlink signal index number of the actual transmission associated with the 0th random access resource is 0, 1, 2, .
  • the downlink signal index number of the actual transmission associated with the last random access resource is (X1-1)*floor(W1/X1) to W1-1.
  • the number of downlink signals actually transmitted by the first K1 random access resources is greater than the number of downlink signals actually transmitted by other random access resources.
  • K1 is an integer greater than zero.
  • the number of downlink signals actually transmitted by each of the pre-K1 random access resources is more than one W1 mod X1 of the actual downlink signals associated with other random access resources.
  • the downlink signal index number of the actual transmission associated with each of the pre-K1 random access resources is i*ceil(W1/X1) to (i+1)*ceil(W1/X1), where i is less than or Equal to K1.
  • the downlink signal index number of the actual transmission associated with other random access resources is i*floor(W1/X1)+K1 ⁇ (i+1)*floor(W1/X1)-1+K1.
  • the number of downlink signals actually transmitted by other random access resources except the 0th random access resource is the same.
  • the number of downlink signals actually transmitted by the 0th random access resource is more than one W1 mod X1 of the actual downlink signals associated with other random access resources.
  • the downlink signal index number of the actual transmission associated with the 0th random access resource is 0, 1, 2, ..., floor(W1/X1)+K1-1.
  • the downlink signal index number of the actual transmission associated with other random access resources is i*floor(W1/X1)+K1 to (i+1)*floor(W1/X1)+K1-1.
  • the number of downlink signals actually transmitted by the last K1 random access resources is greater than the number of downlink signals actually transmitted by other random access resources.
  • K1 is an integer greater than zero.
  • the number of downlink signals actually transmitted by the K1 random access resources is W1 mod X1 more than the number of downlink signals actually transmitted by other random access resources.
  • the downlink signal index numbers of the actual K1 random access resources associated with the last transmission are i*floor(W1/X1) to (i+1)*floor(W1/X1), where i ⁇ X1-K1.
  • the downlink signal index number of the actual transmission associated with other random access resources is i*ceil(W1/X1)-X1+K1 to (i+1)*ceil(W1/X1)-1-X1+K1.
  • the number of downlink signals actually transmitted by the last random access resource is smaller than the number of downlink signals actually transmitted by other random access resources.
  • the actual number of downlink signals actually transmitted by the last random access resource is one less than the number of downlink signals actually transmitted by other random access resources.
  • the downlink signal index number of the actual transmission associated with the last random access resource is: (X1-1)*ceil(W1/X1) to W1-1.
  • the downlink signal index numbers of the actual transmissions associated with other random access resources are: i*ceil(W1/X1) ⁇ (i+1)*ceil(W1/X1)-1.
  • the number of downlink signals actually transmitted by the 0th random access resource is smaller than the number of downlink signals actually transmitted by other random access resources.
  • the downlink signal index numbers of the actual transmission associated with the 0th random access resource are: 0, 1, 2, ..., ceil(W1/X1)-K1-1.
  • the downlink signal index numbers of the actual transmissions associated with other random access resources are: i*ceil(W1/X1)-K1 to (i+1)*ceil(W1/X1)-K1-1.
  • index number of the downlink signal associated with the same random access resource is a non-contiguous index number
  • a specific index number of the downlink signal of the actual transmission associated with each random access resource may be configured.
  • the downlink signal index number of the actual transmission associated with the i-th random access resource is: i, i+X2, i+2X2, .
  • X2 can be equal to X1, and X1 is the number of random access resources.
  • X2 is an integer greater than zero.
  • X2 is not equal to X1, and X2 may be any integer between 1 and 64.
  • the specific index number of the actually transmitted downlink signal associated with each random access resource may also be configured in a computational manner.
  • the value of X2 may be configured by the network device, or may be fixed. In a fixed case, X2 is the number of random access resources.
  • the configuration information indicates the number of random access preambles transmitted on a random access resource
  • the number of random access preambles (PBs) transmitted on a random access resource is P.
  • P is an integer greater than zero.
  • the value of P is 64 or 128 or 256, and the like is not limited herein.
  • a fixed P value may be pre-configured in addition to the manner indicated by the network device by the configuration information.
  • the P value is specified by agreement. This application is not limited.
  • the configuration information does not directly indicate the number of random access preambles transmitted on a random access resource:
  • a field in the configuration information identifies a random access preamble number k1 associated with an actually transmitted downlink signal, where k1 is an integer greater than zero.
  • the terminal may further determine the number of random access preambles transmitted on a random access resource according to the number of random access preambles associated with one downlink signal.
  • M1 is an integer greater than zero.
  • the configuration is based on the number of downlink signals actually transmitted.
  • the configuration information indicates the number of random access preambles k2 associated with an actually transmitted downlink signal, where k2 is an integer greater than zero.
  • the number of downlink signal groups based on actual transmission, and each downlink signal group actually transmitted includes the number of downlink signals that are actually transmitted.
  • the configuration information indicates the number of random access preambles k4 associated with an actually transmitted downlink signal, where k4 is an integer greater than zero.
  • the index when configuring a random access preamble number associated with a random access resource (that is, the number of random access preambles transmitted on a random access resource), the index may be used to associate with a downlink signal at any time.
  • the number of preambles is jointly configured.
  • the foregoing configuration information includes: an initial access preamble number transmitted on a random access resource and an index number of a set of anytime access preamble associated with a downlink signal.
  • One index corresponds to a pair: the number of ready-to-access preambles transmitted on a random access resource, and the number of ready-to-access preambles associated with one downlink signal.
  • the index number can be configured as shown in Table 3. Shown as follows:
  • the index number of each row represents the value of one column in N_C and N_SS.
  • the second line is similar.
  • the index number can be configured as shown in Table 4. Shown as follows:
  • the index number of each row sequentially represents the values of one column in N_C and N_SS.
  • the random access preambles may also be grouped. Assume that a random access resource transmits P random access preambles, and P random access preambles are divided into t groups of random access preamble groups, and each group of random access preambles is associated with one downlink signal or a group of downlink signal groups. For example, a P random access preamble associated with a random access resource is divided into t groups, and correspondingly, one random access resource is associated with t downlink signals, or one random access resource is associated with t downlink signal groups. t is an integer greater than zero.
  • the number of random access preambles in each group may be the same or different, and is not limited in this application.
  • the number of random access preambles in each group may be pre-configured, for example, by protocol or pre-negotiating configuration, or may be configured by configuration information sent by the network device to the terminal.
  • the foregoing configuration information may also indicate packet information of the random access preamble. Or configured by other configuration information.
  • the number of random access preambles in each group is the same, and the number of random access preambles in each group may be directly configured, or the calculation formula of the number of random access preambles in each group may be configured.
  • the number of random access preambles in each group is floor(P/M2).
  • M2 represents any of the following situations: the number of random access preamble groups, the number of downlink signal groups actually transmitted, and the number of downlink signals actually transmitted. M2 is an integer greater than zero.
  • the number of random access preambles in each group is different, and there are various situations as follows:
  • the number of random access preambles in the first group of random access preamble groups is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated, for example, the number of random access preambles in the first group of random access preamble groups is [floor (P/M2)] + (P mod M2); the random access preambles in other random access preamble groups The quantity is floor(P/M2).
  • the number of random access preambles in a random access preamble group may also be the number of random access preambles associated with one downlink signal.
  • each group of random access preamble groups there are 64 random access preambles, which are divided into three groups, and the number of random access preambles in each group of random access preamble groups is 24, 20, and 20, respectively.
  • the number of random access preambles in the pre-t1 group random access preamble group is greater than the number of random access preambles in other random access preamble groups.
  • the number of random access preambles in the pre-t1 group random access preamble group is floor(P/M2)+1; the number of random access preambles in other random access preamble groups is floor(P/ M2).
  • T1 is an integer greater than or equal to 1, and optionally, t1 may be equal to P mod M2.
  • each group of random access preamble groups there are 64 random access preambles, which are divided into five groups.
  • the number of random access preambles in each group of random access preamble groups are 13, 13, 13, 13, and 12, respectively.
  • the number of random access preambles in the last group of random access preamble groups is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated, for example, the number of random access preambles in the last set of random access preamble groups is [floor(P/M2)]+(P mod M2); the random access preambles in other random access preamble groups The quantity is floor(P/M2).
  • each group of random access preamble groups there are 64 random access preambles, which are divided into three groups.
  • the number of random access preambles in each group of random access preamble groups is 20, 20, and 24, respectively.
  • the number of random access preambles in the last t1 group random access preamble group is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated.
  • the number of random access preambles in the last t1 group random access preamble group is floor(P/M2)+1; the number of random access preambles in other random access preamble groups is floor(P/ M2).
  • T1 is an integer greater than or equal to 1, and optionally, t1 may be equal to P mod M2.
  • each group of random access preamble groups there are 64 random access preambles, which are divided into five groups, and the number of random access preambles in each group of random access preamble groups are 12, 13, 13, 13, and 13, respectively.
  • M2 represents any of the following situations: the number of random access preamble groups, the number of downlink signal groups actually transmitted, and the number of downlink signals actually transmitted. M2 is an integer greater than zero.
  • the part of the random access preamble may be divided into two types, for example, the P random access preambles are classified into two types, the first type includes R random access preambles, and the second type includes Q random access preambles.
  • P Q + R.
  • the R random access preambles in the P random access preambles are divided into t' groups, and the remaining Q random access preambles are not grouped.
  • the Q random access preambles are divided into t' groups, and the remaining R random access preambles are not grouped.
  • the first type and the second type of random access preambles may be unrelated or related to each other, and the present application does not limit the same.
  • t', R, and Q are integers greater than 0, and R and Q are smaller than P.
  • P, Q, and R may be flexible configured or a fixed value specified.
  • one type of random access preamble can be applied to a contention free random access process, such as a Tracking Area (TA) recovery under a connected state (RRC), and a connected state.
  • TA Tracking Area
  • RRC connected state
  • OSI system information
  • the second type of random access preamble is applied to a non-contention random access procedure.
  • the first type of random access preamble can be grouped.
  • the number of random access preambles in each random access preamble group may be the same or different, and is not limited in this application.
  • the number of random access preambles in each group may be pre-configured, for example, by protocol or pre-negotiating configuration, or may be configured by configuration information sent by the network device to the terminal.
  • the foregoing configuration information may also indicate packet information of the random access preamble. Or configured by other configuration information.
  • the number of random access preambles in each group is the same, and the number of random access preambles in each group may be directly configured, or the calculation formula of the number of random access preambles in each group may be configured.
  • the number of random access preambles in each group is floor(R/M2).
  • M2 represents any of the following situations: the number of random access preamble groups, the number of downlink signal groups actually transmitted, and the number of downlink signals actually transmitted. M2 is an integer greater than zero.
  • the number of random access preambles in each group is different, and there are various situations as follows:
  • the number of random access preambles in the first group of random access preamble groups is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated, for example, the number of random access preambles in the first group of random access preamble groups is [floor(R/M2)]+(R mod M2); the random access preambles in other random access preamble groups The quantity is floor(R/M2).
  • the first type of random access preamble has 56 random access preambles, which are divided into three groups, and the number of random access preambles in each group of random access preamble groups are 23, 18, and 18, respectively.
  • the number of random access preambles in the pre-t1 group random access preamble group is greater than the number of random access preambles in other random access preamble groups.
  • the number of random access preambles in the pre-t1 group random access preamble group is floor(R/M2)+1; the number of random access preambles in other random access preamble groups is floor(R/ M2).
  • T1 is an integer greater than or equal to 1, and optionally, t1 may be equal to R mod M2.
  • the first type of random access preamble has 59 random access preambles, which are divided into three groups.
  • the number of random access preambles in each group of random access preamble groups is 20, 20, and 19 respectively.
  • the number of random access preambles in the last group of random access preamble groups is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated, for example, the number of random access preambles in the last set of random access preamble groups is [floor(R/M2)]+(R mod M2); the random access preambles in other random access preamble groups The quantity is floor(R/M2).
  • the first type of random access preamble has 59 random access preambles, which are divided into three groups, and the number of random access preambles in each group of random access preamble groups are 18, 18, and 23, respectively.
  • the number of random access preambles in the last t1 group random access preamble group is greater than the number of random access preambles in other random access preamble groups.
  • the calculation formula may be indicated.
  • the number of random access preambles in the last t1 group random access preamble group is floor(R/M)+1; the number of random access preambles in other random access preamble groups is floor(R/ M2).
  • T1 is an integer greater than or equal to 1, and optionally, t1 may be equal to R mod M2.
  • the first type of random access preamble has 59 random access preambles, which are divided into three groups, and the number of random access preambles in each group of random access preamble groups are 19, 20, and 20, respectively.
  • M2 represents any of the following situations: the number of random access preamble groups, the number of downlink signal groups actually transmitted, and the number of downlink signals actually transmitted. M is an integer greater than zero.
  • the number of random access preamble groups may be determined by the actually transmitted downlink signal or the randomly accessed downlink signal group.
  • the number of random access preamble groups may be configured by the network device, or the number of random access preamble groups specified by the protocol is not limited in this application.
  • the random access preambles in the random access preamble groups may not coincide at all, that is, the random access preambles in each random access preamble group are different.
  • random access preambles in different random access preamble groups may overlap, for example, a random access preamble may be in multiple random access preamble groups.
  • configuration information may be carried by any one of the following messages: a Master Information Block (MIB), Remaining System Information (RMSI), and a New Air Interface System Information Block 1 (NR-SIB1). ), new air interface system information block 2 (NR-SIB2), system information, downlink control information (Downlink Control Information, DCI), radio resource control (RRC), media access control control element (Media Access control- Control element, MAC-CE).
  • MIB Master Information Block
  • RMSI Remaining System Information
  • NR-SIB1 New Air Interface System Information Block 1
  • NR-SIB2 new air interface system information block 2
  • system information downlink control information
  • DCI Downlink Control Information
  • RRC radio resource control
  • Media Access control element Media Access control- Control element
  • the P random access preambles may be associated with the actually transmitted downlink signal or the actually transmitted downlink signal group.
  • the network device sends the association relationship configuration information to the terminal, where the association relationship configuration information indicates the association relationship between the random access preamble and the actually transmitted downlink signal, or the association relationship configuration information indicates the downlink of the random access preamble and the actual transmission.
  • the association relationship configuration information indicates the association relationship between the random access preamble and the actually transmitted downlink signal, or the association relationship configuration information indicates the downlink of the random access preamble and the actual transmission.
  • the association relationship configuration information and the configuration information may be the same configuration information, that is, the configuration information also indicates the association between the random access preamble and the actually transmitted downlink signal, and/or the random access preamble and the actual downlink signal. Group associations.
  • the foregoing relationship configuration information and the foregoing configuration information may also be different two pieces of information, which are not limited herein.
  • association relationship configuration information may be carried by any of the following messages: a Master Information Block (MIB), Remaining System Information (RMSI), and a New Air Interface System Information Block 1 (NR-SIB1). ), new air interface system information block 2 (NR-SIB2), system information, downlink control information (Downlink Control Information, DCI), radio resource control (RRC), media access control control element (Media Access control- Control element, MAC-CE).
  • MIB Master Information Block
  • RMSI Remaining System Information
  • NR-SIB1 New Air Interface System Information Block 1
  • NR-SIB2 new air interface system information block 2
  • system information downlink control information
  • DCI Downlink Control Information
  • RRC radio resource control
  • Media Access control element Media Access control- Control element
  • the random access preambles associated with each actually transmitted downlink signal are grouped into one group, or the random access preambles associated with each actually transmitted downlink signal group are grouped into one group. It should be noted that the grouping may be performed based on the number of random access preambles in the foregoing random access preamble group.
  • the packets of the random access preamble may be continuous or discontinuous.
  • the random access preamble index associated with each actually transmitted downlink signal is continuous, or the random access preamble index associated with each actually transmitted downlink signal group is continuous.
  • M3 represents the number of downlink signals actually transmitted
  • M4 represents the number of downlink signal groups actually transmitted
  • M3 and M4 are integers greater than 0.
  • the random access preamble index number associated with the i-th actually transmitted downlink signal includes: i*floor(P/M3) to (i+1)*floor(P/M3)-1, for example, the 0th actual transmission downlink
  • the random access preamble index number associated with the signal is 0, 1, 2, ....
  • each of the actually transmitted downlink signal groups is associated with the same number of random access preambles.
  • the random access preamble index number associated with the i-th actually transmitted downlink signal group includes: i*floor(P/M4) to (i+1)*floor(P/M4)-1, for example, the 0th actual transmission
  • the random access preamble index number associated with the downlink signal group is 0, 1, 2, ....
  • the number of random access preambles associated with the last actually transmitted downlink signal is greater than the number of random access preambles associated with other actually transmitted downlink signals.
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i*floor(P/M3) to (i+1)*floor( P/M3)-1, for example, the random access preamble index associated with the 0th actually transmitted downlink signal is 0, 1, 2, . i is less than or equal to M3-1.
  • the random access preamble index associated with the last actually transmitted downlink signal is: (M3-1)*floor(P/M3) to P-1.
  • the number of random access preambles associated with the last actually transmitted downlink signal group is greater than the number of random access preambles associated with other actually transmitted downlink signal groups.
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i*floor(P/M4) to (i+1)* Floor(P/M4)-1, for example, the random access preamble index associated with the 0th actually transmitted downlink signal group is 0, 1, 2, ....
  • the random access preamble index associated with the last actually transmitted downlink signal group is: (M4-1)*floor(P/M4) to P-1.
  • the number of random access preambles associated with the first t1 actually transmitted downlink signals is greater than the number of random access preambles associated with other actually transmitted downlink signals.
  • t1 can be equal to P mod M3.
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i*ceil(P/M3) to (i+1)*ceil(P/M3), i is less than or equal to t1, or i is less than 1.
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i*floor(P/M3)+P mod M3 to (i+1)*floor (P/M3)-1+P mod M3. i is greater than t1.
  • the number of random access preambles associated with the first t2 actually transmitted downlink signal groups is greater than the number of random access preambles associated with other actually transmitted downlink signal groups.
  • t2 can be equal to P mod M4.
  • the random access preamble index number associated with the i-th actually transmitted downlink signal group is: i*ceil(P/M4) to (i+1)*ceil(P/M4 ), i is less than or equal to t2.
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i*floor(P/M4)+t2 to (i+1)*floor (P/M4)-1+t2. i is greater than t2.
  • the number of random access preambles associated with the first actually transmitted downlink signal is greater than the number of random access preambles associated with other actually transmitted downlink signals.
  • the number of random access preambles associated with other actually transmitted downlink signals may be the same.
  • the random access preamble index associated with the first actually transmitted downlink signal is: 0, 1, 2, ..., floor(P/M3) + Pmod M3-1.
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i*floor(P/M3)+P mod M3 to (i+1)*floor(P/M3)+ P mod M3-1.
  • the number of random access preambles associated with the first actually transmitted downlink signal group is greater than the number of random access preambles associated with other actually transmitted downlink signal groups.
  • the number of random access preambles associated with other actually transmitted downlink signal groups may be the same.
  • the random access preamble index associated with the first actually transmitted downlink signal group is: 0, 1, 2, ..., floor(P/M4) + Pmod M4-1.
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i*floor(P/M4)+P mod M4 to (i+1)*floor(P/M4) +P mod M4-1.
  • the number of random access preambles associated with the last t1 actually transmitted downlink signals is greater than the number of random access preambles associated with other actually transmitted downlink signals.
  • t1 can be equal to P mod M3.
  • the last random access preamble index associated with the i th downlink signal is: i*floor(P/M3) ⁇ (i+1)*floor(P/M3);
  • the random access preamble index number associated with the i-th downlink signal is: i*ceil(P/M3)-M3+P mod M3 ⁇ (i+1)*ceil( P/M3)-1-X+P mod M3.
  • the number of random access preambles associated with the last actually transmitted downlink signal is less than the number of random access preambles associated with other actually transmitted downlink signals.
  • the number of random access preambles associated with other actually transmitted downlink signals may be the same.
  • the random access preamble index associated with the last actually transmitted downlink signal is: (M3-1)*ceil(P/M3) to P-1.
  • the random access preamble index associated with the i-th downlink signal is: i*ceil(P/M3) to (i+1)*ceil(P/M3)-1 .
  • the number of random access preambles associated with the last actually transmitted downlink signal group is less than the number of random access preambles associated with other actually transmitted downlink signal groups.
  • the number of random access preambles associated with other actually transmitted downlink signals may be the same.
  • the random access preamble index associated with the last actually transmitted downlink signal group is: (M4-1)*ceil(P/M4) to P-1.
  • the random access preamble index number associated with the i-th downlink signal group is: i*ceil(P/M4) to (i+1)*ceil(P/M4) -1.
  • the index number of the random access preamble, the actually transmitted downlink signal index number, and the actually transmitted downlink signal group index number are all counted from 0.
  • the number of random access preambles associated with the first actually transmitted downlink signal is less than the number of random access preambles associated with other actually transmitted downlink signals.
  • the number of random access preambles associated with other actually transmitted downlink signals may be the same.
  • the random access preamble index associated with an actually transmitted downlink signal is: 0, 1, 2, ..., ceil(P/M3)-P mod M3-1.
  • the random access preamble index number associated with the i th downlink signal is: i*ceil(P/M3)-P mod M3 to (i+1)*ceil(P/M3)-P Mod M3-1.
  • the number of random access preambles associated with the first actually transmitted downlink signal group is less than the number of random access preambles associated with other actually transmitted downlink signal groups.
  • the number of random access preambles associated with other actually transmitted downlink signal groups may be the same.
  • the random access preamble index associated with an actually transmitted downlink signal group is: 0, 1, 2, ..., ceil(P/M4)-P mod M4-1.
  • the random access preamble index number associated with the i th downlink signal group is: i*ceil(P/M4)-P mod M4 to (i+1)*ceil(P/M4) -P mod M4-1.
  • the contention-based random access preamble and the non-contention based random access preamble index number are consecutive.
  • the contention-based random access preamble associated with a downlink signal is discontinuous, for example, sequentially assigned to different downlink signals according to an index order, for example, a random access preamble index allocated to the i-th downlink signal is H1 to H3, where the index The H1 to H2 random access preamble is used as a contention based random access preamble.
  • the H2+1 to H3 random access preamble is used as the contention-based random access preamble; the random access preamble index allocated to the i+1th downlink signal is H4 to H6, and the index is H4 to H5.
  • the contention-based random access preamble of different downlink signals is discontinuous.
  • the contention-based random access preamble and the non-contention-based random access preamble are consecutive, and the contention-based random access preamble associated with one downlink signal is continuous, for example, sequentially allocated to different downlinks according to an index order.
  • the signal for example, the contention-based random access preamble index allocated to the i-th downlink signal is H0 to H1, and the contention-based random access preamble index allocated to the (i+1)th downlink signal is H1+1 to H2,
  • the contention-based random access preamble index allocated to the i+2th downlink signal is H2+1 ⁇ H3, where H3>H2>H1>H0.
  • a non-contention based random access preamble associated with a downlink signal may also be contiguous, for example, sequentially assigned to different downlink signals in an index order, such as a non-contention based random connection assigned to the i th downlink signal.
  • the non-contention-based random access preamble index assigned to the i+1th downlink signal is H1+1 to H2, and the non-competitive random connection assigned to the i+2th downlink signal is H1 to H1.
  • the incoming preamble index is H2+1 ⁇ H3, where H3>H2>H1>H0.
  • H6, H5, H4, H3, H2, and H1 are all integers greater than zero.
  • the random access preamble index number associated with each actually transmitted downlink signal is discontinuous, or the random access preamble index number associated with each actually transmitted downlink signal group is discontinuous.
  • the random access preamble index number associated with each actually transmitted downlink signal may be directly configured, or may be associated with a random access preamble index number of each actually transmitted downlink signal group.
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i, i+T, i+2T, .
  • T is an integer greater than zero.
  • T M3, but not limited thereto, and T may be any integer between 1 and 64.
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i, i+T, i+2T, .
  • T is an integer greater than zero.
  • a random access preamble index number calculation formula associated with each actually transmitted downlink signal may be further configured, or a random access preamble index number calculation formula associated with each actually transmitted downlink signal group.
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i+N (1 ⁇ floor(P/N)).
  • the random access preamble index associated with the i-th actually transmitted downlink signal is: i+N (1 to ceil(P/N)).
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i+N (1 ⁇ floor(P/N)).
  • the random access preamble index associated with the i-th actually transmitted downlink signal group is: i+N (1 to ceil(P/N)).
  • the contention-based random access preamble index associated with each actually transmitted downlink signal and or the non-contention based random access preamble are discontinuous.
  • the network device allocates the contention-based random access preamble associated with the J downlink signals to be discontinuous, the network device allocates according to J+1 downlink signals.
  • the assigned index is: (i-1), (i-1) + J+1, (i-1) + 2 (J + 1). Wherein, one downlink signal associated with a random access resource.
  • one downlink signal other than the above J downlink signals is a virtual downlink signal.
  • a contention-based random access preamble (preamble group) may be associated with this virtual downlink signal, or a non-contention based random access preamble (preamble group) may be associated with this virtual downlink signal.
  • J downlink signals associated with the contention-based random access preamble are treated as a whole +1 virtual downlink signals, then a total of two, for example, the index of the random access preamble associated with the 0th virtual downlink signal is: 0 , 2, 4, 6, 8, ..., the index of the random access preamble associated with the first virtual downlink signal is: 1, 3, 5, 7, 9, ....
  • the virtual downlink signal may correspond to CSI-RS, system information, and paging information.
  • the CSI-RS acts as a virtual downlink signal; for example, the random access preamble or random access preamble packet is used for
  • the system information is used as a virtual downlink signal; and when the random access preamble or random access preamble packet is used to trigger a paging message, the paging message is regarded as a virtual downlink. signal.
  • a method for allocating a random access preamble is that a contention-based random access preamble index associated with one downlink signal is discontinuous in a contention-based random access preamble set.
  • the signals are sequentially assigned to different downlink signals in order, for example, the index assigned to the i-th downlink signal is: (i-1), (i-1) + J, (i-1) + 2J.
  • a contention-based random access preamble (preamble group) may be associated with this virtual downlink signal, or a non-contention based random access preamble (preamble group) may be associated with this virtual downlink signal.
  • a contention-based random access preamble index associated with a downlink signal is continuous in the contention-based random access preamble set, for example, the contention-based random access preamble index allocated to the i-th downlink signal is H0-H1, and The contention-based random access preamble index allocated to the (i+1)th downlink signal is H1+1 to H2, and the contention-based random access preamble index allocated to the i+2th downlink signal is H2+1 to H3.
  • the relationship between the t random access preamble groups and the M3 actually transmitted downlink signals has the following three cases:
  • the network device may send configuration information to the terminal for configuration, or may be pre-defined by the protocol.
  • the downlink signal actually transmitted may be in one-to-one correspondence with the random access preamble group, that is, each downlink signal actually transmitted has a special random access preamble group.
  • the random access preamble index number associated with the i-th actually transmitted downlink signal is i mod t or floor(i/t).
  • the random access preamble index number associated with the 0th actually transmitted downlink signal is 0, and the random access preamble index number associated with the third actually transmitted downlink signal is 0. Or 3.
  • the downlink signal combination actually transmitted is pre-configured, for example, the downlink signal index number associated with the actual transmission of a random access preamble group includes y1, y2, and so on.
  • the actual transmitted downlink signal index number combination can be [1 or 2, 3 or 4, 5] or [1/2, 3, 4/5] or [1, 2/3, 4/5] Wait.
  • part of the actually transmitted downlink signal may be in the random access preamble group of the next random access resource (in accordance with the next one of the index numbers).
  • the above three methods may have different identifiers, and the network device indicates which manner is used to associate by carrying the identifier of the association manner in the configuration information.
  • the downlink signal combination actually transmitted is pre-configured, for example, the downlink signal associated with the actual transmission of a random access preamble group includes y1, y2, and so on.
  • the actual transmitted downlink signal index number combination can be [1, 2, 3, 1, 2] or [1, 2, 3, 2, 1] or [1, 2, 3, 1,3] or [1,2,3,3,1]; or [1,2,3,2,3], or [1,2,3,3,2].
  • a partial random access preamble group can be released.
  • the random access preamble group whose index number is greater than t is released, and the remaining random access preamble groups are in one-to-one correspondence with the actually transmitted downlink signals.
  • the partial random access preamble group is released, and the partial random access preamble group may be identified as not used.
  • the above three methods may have different identifiers, and the network device indicates which manner is used to associate by carrying the identifier of the association manner in the configuration information.
  • the network device may send configuration information to the terminal for configuration, or may be pre-defined by the protocol.
  • the downlink signal actually transmitted may be in one-to-one correspondence with the random access preamble group, that is, each downlink signal actually transmitted has a special random access preamble group.
  • the index of the random access preamble associated with the i-th actually transmitted downlink signal group is i mod t or floor(i/t).
  • the random access preamble index number associated with the 0th actually transmitted downlink signal is 0, and the random access preamble index number associated with the third actually transmitted downlink signal. It is 0 or 3.
  • the downlink signal combination actually transmitted is pre-configured, for example, the downlink signal index number associated with the actual transmission of a random access preamble group includes y1, y2, and so on.
  • the actual transmitted downlink signal index number combination can be [1 or 2, 3 or 4, 5] or [1/2, 3, 4/5] or [1, 2/ 3, 4/5] and so on.
  • part of the actually transmitted downlink signal may be in the random access preamble group of the next random access resource (in accordance with the next one of the index numbers).
  • the above three methods may have different identifiers, and the network device indicates which manner is used to associate by carrying the identifier of the association manner in the configuration information.
  • (3) t is greater than or equal to M3*M4, and an actually transmitted downlink signal may be associated with multiple random access preamble groups.
  • the actual transmitted downlink signal index number combination can be [1, 2, 3, 1, 2] or [1, 2, 3, 2, 1] or [1, 2, 3, 1,3] or [1,2,3,3,1]; or [1,2,3,2,3], or [1,2,3,3,2].
  • a partial random access preamble group can be released.
  • the random access preamble group whose index number is greater than t is released, and the remaining random access preamble groups are in one-to-one correspondence with the actually transmitted downlink signals.
  • the partial random access preamble group is released, and the partial random access preamble group may be identified as not used.
  • the above three methods may have different identifiers, and the network device indicates which manner is used to associate by carrying the identifier of the association manner in the configuration information.
  • a low frequency scenario that is, a scenario in which the frequency band is lower than 6 GHz, or in a scenario lower than 3 GHz, it is assumed that the number of random access preamble groups associated with the M5 actually transmitted downlink signals is t:
  • the network device may send configuration information to the terminal for configuration, or may be pre-defined by the protocol.
  • the downlink signal actually transmitted may be in one-to-one correspondence with the random access preamble group, that is, each downlink signal actually transmitted has a special random access preamble group.
  • the random access preamble index number associated with the i-th actually transmitted downlink signal is i mod t or floor(i/t). i is an integer greater than zero.
  • the random access preamble index number associated with the 0th actually transmitted downlink signal is 0, and the random access preamble index number associated with the third actually transmitted downlink signal is 0. Or 3.
  • the downlink signal combination actually transmitted is pre-configured, for example, the downlink signal index number associated with the actual transmission of a random access preamble group includes y1, y2, and so on.
  • the actual transmitted downlink signal index number combination can be [1 or 2, 3 or 4, 5] or [1/2, 3, 4/5] or [1, 2/3, 4/5] Wait.
  • part of the actually transmitted downlink signal may be in the random access preamble group of the next random access resource (in accordance with the next one of the index numbers).
  • the above three methods may have different identifiers, and the network device indicates which manner is used to associate by carrying the identifier of the association manner in the configuration information.
  • the downlink signal combination actually transmitted is pre-configured, for example, the downlink signal associated with the actual transmission of a random access preamble group includes y1, y2, and so on.
  • the actual transmitted downlink signal index number combination can be [1, 2, 3, 1, 2] or [1, 2, 3, 2, 1] or [1, 2, 3, 1,3] or [1,2,3,3,1]; or [1,2,3,2,3], or [1,2,3,3,2].
  • a partial random access preamble group can be released.
  • the random access preamble group whose index number is greater than t is released, and the remaining random access preamble groups are in one-to-one correspondence with the actually transmitted downlink signals.
  • the partial random access preamble group is released, and the partial random access preamble group may be identified as not used.
  • the above three methods may have different identifiers, and the network device indicates which manner is associated by carrying the identifier of the association manner in the configuration information.
  • multiple association rules may exist in one cell.
  • the first mode is that each of the actually transmitted downlink signal groups has a single mapping manner, and the downlink signals in each of the actually transmitted downlink signal groups are associated in the same manner.
  • the protocol can pre-define multiple mapping rules, such as two mapping rules.
  • N SS block groups actually transmitted for example, 4, and the N bit can be used for indication, for example, 4 bits, 1010.
  • the i-th actually transmitted SS block group can be indicated using the ith bit, i starting from 0.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 4, the network device includes: a determining module 401 and a sending module 402, where:
  • the determining module 401 is configured to determine configuration information, where the configuration information is used to indicate at least one of: a random access preamble number transmitted on a random access resource, and a contention based transmission on a random access resource
  • the number of random access preambles, the number of non-contention based random access preambles transmitted on a random access resource, the number of random access preambles associated with one downlink signal, and the number of non-contention based random access preambles associated with one downlink signal The number of contention-based random access preambles associated with one downlink signal and the number of downlink signals actually transmitted by a random access resource.
  • the sending module 402 is configured to send the configuration information to the terminal.
  • the number of downlink signals actually transmitted by the one random access resource is determined according to the actually transmitted downlink signal and/or the actually transmitted downlink signal group.
  • the configuration information when the configuration information indicates the number of downlink signals actually transmitted by a random access resource, the configuration information includes: an index of the number of downlink signals actually transmitted by a random access resource.
  • the determining module 401 is further configured to determine, according to the number of downlink signals actually transmitted, the number of bits occupied by the index of the number of downlink signals actually transmitted by the one random access resource.
  • the determining module 401 is further configured to determine, according to the number of downlink signals actually transmitted by the random access resource, the number of bits occupied by the index of the number of random access preambles associated with one downlink signal in the configuration information.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 5, the terminal includes: a receiving module 501, a determining module 502, and a sending module 503.
  • the receiving module 501 is configured to receive configuration information sent by the network device, where the configuration information is used to indicate at least one of: a random access preamble number transmitted on a random access resource, and transmitted on a random access resource.
  • the number of contention-based random access preambles, the number of non-contention based random access preambles transmitted on a random access resource, the number of random access preambles associated with one downlink signal, and the non-contention based randomization associated with one downlink signal The number of access preambles, the number of contention-based random access preambles associated with one downlink signal, and the number of downlink signals actually transmitted by a random access resource.
  • the determining module 502 is configured to determine, according to the configuration information, a random access resource associated with the downlink signal actually transmitted.
  • the sending module 503 is configured to send a random access preamble to the network device according to the random access resource associated with the actually transmitted downlink signal.
  • each module of the above device is only a division of a logical function, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated.
  • these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware.
  • the determining module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device.
  • the above-mentioned devices can be used to execute the above-mentioned methods, and the specific implementations and technical effects are similar, and details are not described herein again.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Signal processor, DSP), or one or more Field Programmable Gate Arrays (FPGAs).
  • ASICs Application Specific Integrated Circuits
  • DSP digital Signal processor
  • FPGAs Field Programmable Gate Arrays
  • the processing component can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke program code.
  • these modules can be integrated and implemented in the form of a system-on-a-chip (SOC). The function of the module.
  • SOC system-on-a-chip
  • the processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • FIG. 6 is a schematic structural diagram of a network device according to another embodiment of the present disclosure.
  • the network device includes a radio frequency signal transceiving and converting portion and a portion 1302.
  • the radio frequency signal transceiving and converting portion further includes a receiving unit 1301 portion and a transmitting unit 1303 portion (also collectively referred to as a transceiving unit).
  • the RF signal transmission and reception and conversion part is mainly used for transmitting and receiving RF signals and converting RF signals and baseband signals; the 1302 part is mainly used for baseband processing and control of network equipment.
  • the receiving unit 1301 may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit 1303 may also be referred to as a transmitter, a transmitter, a transmitter, a transmitting circuit, or the like.
  • the portion 1302 is typically a control center for a network device, and may generally be referred to as a processing unit for controlling the network device to perform the steps performed by the network device described above with respect to FIG. For details, please refer to the description of the relevant part above.
  • the 1302 portion may include one or more boards, each of which may include one or more processors and one or more memories for reading and executing programs in the memory to implement baseband processing functions and to network devices control. If multiple boards exist, the boards can be interconnected to increase processing power. As an optional implementation manner, multiple boards share one or more processors, or multiple boards share one or more memories, or multiple boards share one or more processes at the same time. Device.
  • SoC system-on-chip
  • all or part of the functions of the 1302 part and the 1301 part may be implemented by SoC technology, for example, by a base station function.
  • the chip realizes that the base station function chip integrates a processor, a memory, an antenna interface and the like, and a program of a network device related function is stored in a memory, and the processor executes a program to implement a related function of the base station.
  • the network device function chip can also read the memory outside the chip to implement related functions of the base station.
  • the terminal or the network device may also include only a processor.
  • the memory for storing the program is located outside the device, and the processor is connected to the memory through the circuit/wire for reading and executing the program stored in the memory.
  • the processor can be a central processing unit (CPU), a network processor (NP) or a combination of CPU and NP.
  • CPU central processing unit
  • NP network processor
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the memory may include a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory such as a flash memory.
  • RAM random-access memory
  • non-volatile memory such as a flash memory.
  • HDD hard disk drive
  • SSD solid-state drive
  • the memory may also include a combination of the above types of memories.
  • FIG. 7 is a schematic structural diagram of a simplified terminal device according to an embodiment of the present application.
  • the terminal device uses a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling terminal devices, executing software programs, processing data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be independent of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • an antenna and a radio frequency circuit having a transceiving function can be regarded as a receiving unit and a transmitting unit (also collectively referred to as a transceiving unit) of the terminal device, and a processor having a processing function is regarded as a processing unit of the terminal device.
  • the terminal device includes a receiving unit 1201, a processing unit 1202, and a transmitting unit 1203.
  • the receiving unit 1201 may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit 1203 may also be referred to as a transmitter, a transmitter, a transmitter, a transmitting circuit, or the like.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the embodiment of the present application further provides a computer storage medium, which is stored with a computer program, which is used to execute the random access method provided by the foregoing embodiment.
  • the embodiment of the present application further provides a computer program product comprising instructions, which when executed on a computer, causes the computer to execute the random access method provided by the foregoing embodiment.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in 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 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

本申请提供一种随机接入方法、网络设备及终端，该方法包括：网络设备确定配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；向终端发送所述配置信息。以便终端根据该配置信息发送随机接入前导，实现了网络设备向终端指示随机接入的相关信息，以便完成随机接入过程。

Description

随机接入方法、网络设备及终端
本申请要求于2017年11月17日提交中国专利局、申请号为201711149118.0、申请名称为“随机接入方法、网络设备及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术，尤其涉及一种随机接入方法、网络设备及终端。
背景技术
移动业务的发展对无线通信的数据速率和效率要求越来越高。在未来无线通信系统中，采用波束成型技术来将传输信号的能量限制在某个波束方向内，从而增加信号接收的效率。具体地，波束成型技术能够有效扩大无线信号的传输范围，降低信号干扰，从而达到更高的通信效率和获取更高的网络容量。不过，波束成型技术在提升无线通信网络效率的同时，也给系统设计带来了挑战。一方面，将传输信号的能量限制在某一个区域内，需要多个波束来实现全范围覆盖。另一方面，位于不同地理位置的终端数量、负载和业务需求等会有区别，导致不同区域需要不同数量的波束和资源。再一方面，发送波束和接收波束需要匹配，以使得接收波束获得来自发送波束信号质量比较好的信号。
目前，在多波束网络中，通过波束扫描技术来克服上述挑战。由于基站能力的限制，波束扫描通过时分的方式进行，也就是基站在多个波束上发送或者接收信号的时间不同。因此，基站与终端进行通信之前，首先需要进行上行同步和下行同步。在下行同步过程中，基站通过多个发送波束发送下行同步信号，终端利用一个或多个接收波束对下行同步信号进行接收并检测，确定最佳下行发送波束和接收波束对、下行时间以及系统信息。而上行同步借助于随机接入过程来完成，终端首先发送随机接入信号，基站通过检测随机接入信号，获取最佳上行发送波束和接收波束对、上行时间等，并实现基站与终端的上行同步。
目前的新空口(New Radio，NR)技术中，还没有合适的确定随机接入资源的方式，因而终端在发送随机接入信号时存在盲目尝试随机接入资源的问题、并且基站在接收随机接入信号时可能出现波束不匹配的问题，从而导致随机接入过程的效率较低。
发明内容
本申请提供一种随机接入方法、网络设备及终端，用于指示随机接入过程中的相关信息。
第一方面，本申请提供一种随机接入方法，包括：
网络设备确定配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机 接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
网络设备向终端发送所述配置信息。
一种可能的设计中，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
一种可能的设计中，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
一种可能的设计中，所述方法还包括：
所述网络设备根据实际传输的下行信号数量，确定所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数。
一种可能的设计中，所述方法还包括：
所述网络设备根据在一个随机接入资源上传输的随机接入前导数量，确定所述配置信息中一个随机接入资源上传输的基于竞争的随机接入前导数量的索引所占比特数。
一种可能的设计中，所述方法还包括：
所述网络设备根据一个随机接入资源关联的实际传输的下行信号数量，确定所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数。
一种可能的设计中，一个下行信号关联的随机接入前导索引为非连续或者连续的随机接入前导索引。
一种可能的设计中，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
第二方面，本申请提供一种随机接入方法，包括：
终端接收网络设备发送的配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
所述终端根据所述配置信息，确定实际传输的下行信号关联的随机接入资源；
所述终端根据所述实际传输的下行信号关联的随机接入资源，向网络设备发送随机接入前导。
一种可能的设计中，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
一种可能的设计中，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
一种可能的设计中，所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数，根据一个随机接入资源关联的实际传输的下行信号数量确定。
一种可能的设计中，，一个下行信号关联的随机接入前导索引为非连续的随机接入前导索引。
一种可能的设计中，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
第三方面，本申请提供一种网络设备，该网络设备包括用于执行上述第一方面以及第一方面的各种实现方式所提供的方法的模块或手段(means)。
第四方面，本申请提供一种终端，该终端包括用于执行上述第二方面以及第一方面的各种实现方式所提供的方法的模块或手段(means)。
第五方面，本申请提供一种装置，所述装置包括处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行本申请第一方面提供的方法，所述装置可以为网络设备，也可以为网络设备上的芯片。
第六方面，本申请提供一种装置，所述装置包括处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行本申请第一方面提供的方法，所述装置可以为终端，也可以为终端设备上的芯片。
第七方面，本申请提供一种计算机存储介质，该计算机存储介质用于存储程序，该程序用于执行以上第一至第四方面所述的任意一种方法。
本申请提供的随机接入方法、终端及网络设备中，网络设备确定配置信息，并向终端发送配置信息。其中，该配置信息指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。以便终端根据该配置信息发送随机接入前导，实现了网络设备向终端指示随机接入的相关信息，以便完成随机接入过程。
附图说明
图1为本申请提供的一种通信系统架构示意图；
图2为本申请一实施例提供的随机接入方法流程示意图；
图3为本申请一实施例提供的关联关系示意图；
图4为本申请一实施例提供的网络设备结构示意图；
图5为本申请一实施例提供的终端结构示意图；
图6为本申请另一实施例提供的网络设备结构示意图；
图7为本申请一实施例提供的一种简化的终端设备结构示意图。
具体实施方式
本申请中部分符号说明：“Mod”表示求余，“floor”表示向下取整，“ceil”表示向上取整。
本申请实施例可以应用于无线通信系统，需要说明的是，本申请实施例提及的无线通信系统包括但不限于：窄带物联网系统(Narrow Band-Internet of Things，NB-IoT)、全球移动通信系统(Global System for Mobile Communications，GSM)、增强型数据速率GSM演进系统(Enhanced Data rate for GSM Evolution，EDGE)、宽带码分多址系统(Wideband Code Division Multiple Access，WCDMA)、码分多址2000系统(Code Division Multiple Access，CDMA2000)、时分同步码分多址系统(Time Division-Synchronization Code Division Multiple Access，TD-SCDMA)，长期演进系统(Long Term Evolution，LTE)以及下一代5G移动通信系统的三大应用场景增强型移动宽带(Enhanced Mobile Broad Band，eMBB)、URLLC以及大规模机器通信(Massive Machine-Type Communications，mMTC)。
在本申请实施例中，终端(terminal device)包括但不限于移动台(MS，Mobile Station)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)及便携设备(portable equipment)等，该终端可以经无线接入网(RAN，Radio Access Network)与一个或多个核心网进行通信，例如，终端可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置或设备。
图1为本申请提供的一种通信系统架构示意图。
如图1所示，通信系统01包括网设备101和终端102。当无线通信网络01包括核心网时，该网络设备101还可以与核心网相连。网络设备101还可以与互联网协议(Internet Protocol，IP)网络200进行通信，例如，因特网(internet)，私有的IP网，或其它数据网等。网络设备为覆盖范围内的终端提供服务。例如，参见图1所示，网络设备101为网络设备101覆盖范围内的一个或多个终端提供无线接入。另外，网络设备之间还可以可以互相通信。
网络设备101可以是用于与终端进行通信的设备。例如，可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolved Node B，eNB或eNodeB)或未来5G网络中的网络侧设备等。或者该网络设备还可以是中继站、接入点、车载设备等。在终端对终端(Device to Device，D2D)通信系统中，该网络设备还可以是担任基站功能的终端。终端可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(user equipment，UE)，移动台(mobile station，MS)等。
本申请中，下行信号可以指同步信号块(synchronization signal block，SS block)。SS block可以对应一个或多个OFDM符号。SS block中包含以下至少一项：主同步信号(PrimarySynchronization Signal，PSS)、辅同步信号(Secondary Synchronization Signal，SSS)、物理广播信号(Physical Broadcast Channel Block，PBCH)、解调参考信号(Demodulation Reference Signal，DMRS)；SS block也可以称为SS/PBCH block。SS block或者SSB/PBCH block里的信号可以是相同的天线端口。
可选地，下行信号还可以指信道状态信息参考信号(Channel State Information Reference  Signal，CSI-RS)、CSI-RS资源索引(Resource Index)中的至少一种，本申请不作限制。
多个下行信号可以构成一个下行信号组。可选地，一个下行信号组最多可以包括8个下行信号。例如一个SS block group最多可以包括8个SS block。
本申请针对上述技术问题提出一种新的随机接入方法。
本申请中下行信号的索引号可以有多种编辑方式，可以根据具体需求预先配置：
(1)所有实际传输的下行信号统一编索引号，即不区分下行信号组。例如实际传输49个下行信号，那么索引号为0～48，或者1～49等。
(2)各实际传输的下行信号组内下行信号分别编索引号，具体地，先对实际传输的下行信号组编索引号，例如一共有8组实际传输的下行信号组，索引号分别为0～7或者1～8等。假设一组实际传输的下行信号组中实际传输8个下行信号，索引号分别为0～7或者1～8等。另一组实际传输的下行信号组中也实际传输8个下行信号，索引号分别为0～7或者1～8等。
需要说明的是，各实际传输的下行信号组内实际传输的下行信号个数可以相同、也可以不同，本申请不作限制。
(3)对所有下行信号统一编索引号，不区分下行信号组，也不区分实际传输。例如所有可能传输的下行信号有64个，索引号分别为0～63或者1～64等。
(4)对所有下行信号组编索引号，例如所有可能传输的下行信号组有8组，索引号分别为0～7或者1～8等。再对各下行信号组中所有可能传输的下行信号编索引号，例如一组下行信号组包含8个下行信号，索引号分别为0～7或者1～8等。
需要说明的是，各下行信号组内下行信号个数可以相同、也可以不同，本申请不作限制。
图2为本申请一实施例提供的随机接入方法流程示意图，如图2所示，该方法包括：
S201、网络设备确定配置信息。该配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量(number of preambles for CBRA(Contention Based Random Access))、在一个随机接入资源上传输的基于非竞争的随机接入前导数量(number of preambles for CFRA(Contention Free Random Access))、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
配置信息可以有多个比特位构成，上述信息中，每个需要指示的信息会由一个或多个比特位的值来表示。
配置信息可以包括上述信息的任意组合。
可选地一种实施方式中，上述配置信息具体指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
终端根据配置信息指示的这几项信息可以推导出一个下行信号关联的基于竞争的随机接入前导数量。
或者，另一种实施方式中，上述配置信息具体指示：一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
当然，本申请不以这两种组合方式为限。
具体实现过程中，上述下行信号可以理解为实际传输的下行信号。可扩展地，本申请中提到的下行信号都可以理解为实际传输的下行信号。
S202、网络设备向终端发送配置信息。
S203、终端根据该配置信息，确定实际传输的下行信号关联的随机接入资源。
S204、终端根据实际传输的下行信号关联的随机接入资源，向网络设备发送随机接入前导。
这里向网络设备发送的随机接入前导可以包括：基于竞争的随机接入前导和/或基于非竞争的随机接入前导，具体可以根据实现场景确定，在此不作限制。
网络设备通过配置信息向终端配置信息向终端配置随机接入资源、随机接入前导、下行信号的相关信息，进而终端可以根据配置信息确定实际传输的下行信号和随机接入资源的关联关系，以及随机接入资源上传输的随机接入前导，向网络设备发送随机接入前导。
本实施例中，网络设备确定配置信息，并向终端发送配置信息。其中，该配置信息指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。以便终端根据该配置信息发送随机接入前导，实现了网络设备向终端指示随机接入的相关信息，以便完成随机接入过程。
本申请中，随机接入(random access channel，RACH)资源可以包括：随机接入的时间、频率等信息。其中随机接入的时间可以是正交频分复用(orthogonal frequency division multiplexing，OFDM)符号、微时隙、时隙、子帧、时间长度为H个基本时间单元的时间段，表示可以发送一个预定义的随机接入前导所需要的时间，随机接入的频率表示发送一个预定义的随机接入前导所需要的带宽，其中H大于0。在一种实现方式中，一个随机接入资源由随机接入的时间和随机接入的频率两个维度来标识，即一个随机接入的时间、频率定义一个随机接入资源。在另一实现方式中，一个随机接入的时间、频率可以定义多个随机接入资源。
一个随机接入资源还可以称为一个随机接入机会(RACH occasion/RACH transmission occasion/RACH opportunity/RACH chance，RO)，或者在一个随机接入时间频率资源上的一个/多个集合的随机接入前导。
在上述实施例的基础上，一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
进一步地，上述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
需要说明的是，一个随机接入资源关联的实际传输的下行信号数量有多种情况，每种情况可以有一个索引，该索引可以由配置信息中对应的比特位来指示。
可选地，在配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，有多种指示方法：
一种方法中，指示一个随机接入资源关联的实际传输的下行信号组数量，并结合下行 信号组中实际传输的下行信号数量指示一个随机接入资源关联的实际传输的下行信号数量。假设在实际传输的下行信号组中实际传输的下行信号数量为X，实际传输的下行信号组数量为Y，则一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(4，ceil(log2(X+Y)))，或，min(4,ceil(log2(X+Y-1)))。X、Y为大于0的整数。
或者，基于一个随机接入资源上传输的基于竞争的随机接入前导数量Z来指示一个随机接入资源关联的实际传输的下行信号数量，Z为大于0的整数。一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(4,ceil(log2(Z)))。其中，ceil表示向上取整，min表示取较小的值。当基于下行信号组传输的时候，实际传输的下行信号数量为X*Y，其中*表示相乘。
进一步地，还可以考虑频段来确定配置信息。例如在频段大于6GHz时，假设在实际传输的下行信号组中实际传输的下行信号数量为X，实际传输的下行信号组数量为Y，则一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为：min(4,ceil(log2(X+Y)))或min(4,ceil(log2(X+Y-1)))。X、Y为大于0的整数。
或者，在频段大于6GHz时，基于一个随机接入资源上传输的基于竞争的随机接入前导数量Z来指示一个随机接入资源关联的实际传输的下行信号数量，Z为大于0的整数。一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(4,ceil(log2(Z)))。
或者，同时考虑X、Y、Z，一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为下述任一项：min(4,ceil(log2(X+Y))、ceil(log2(Z)))、min(4,ceil(log2(X+Y-1))、ceil(log2(Z)))。
如表1所示，不同索引指示的一个随机接入资源关联的实际传输的下行信号数量不同。表1的16种情况即包含下行信号组与随机接入资源的关联关系，也包括实际传输的下行信号与随机接入资源的关联关系。
表1
Figure PCTCN2018110966-appb-000001
Figure PCTCN2018110966-appb-000002
在上述实施例的基础上，频段小于或等于6GHz时，假设实际传输的下行信号数量为Y′，一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(3,log 2(Y′))，Y′为大于0的整数。
或者，频段小于或等于6GHz时，基于一个随机接入资源上传输的基于竞争的随机接入前导数量Z来指示一个随机接入资源关联的实际传输的下行信号数量，Z为大于0的整数。一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(3,ceil(log 2(Y′)),ceil(log 2(Z)))。
在上述实施例的基础上，频段小于或等于3GHz时，假设实际传输的下行信号数量为Y′，一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为min(2,log 2(Y′))，Y′为大于0的整数。
或者，频段小于或等于3GHz时，基于一个随机接入资源上传输的基于竞争的随机接入前导数量Z来指示一个随机接入资源关联的实际传输的下行信号数量，Z为大于0的整数。一个随机接入资源关联的实际传输的下行信号数量的索引占比特数可以为 min(2,ceil(log 2(Y′)),ceil(log 2(Z)))。
可选地，一个随机接入资源关联的实际传输的下行信号数量也可以根据一个随机接入资源关联的实际传输的下行信号组数量确定。如表2所示，不同索引指示的一个随机接入资源关联的实际传输的下行信号组数量不同，这样可以减少索引数量，从而可以减少配置信息中用于指示的比特位，以节约资源。
具体实现时，可以根据实际传输的下行信号数目确定索引数量，例如实际传输的下行信号只有4个，那么可以只保留表2中的部分数据索引，例如0～4，这样可以减少索引数量，从而可以减少配置信息中用于指示的比特位，以节约资源。
表2
Figure PCTCN2018110966-appb-000003
需要说明的是，上述索引与后面含义之间的关系只是举例说明，具体实现时可以具体配置，本申请不作限制。
需要说明的是，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和可以固定为64、128、256中任一项。
一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和也可以是由上述配置信息配置的，例如可以配置为64、128、256中任一项。或者配置为64、128中的任一项，使用1bit进行指示；或者配置为64、256中的任一项，使用1比特进行指示；或者配置为128、256中的任一项，使用1比特进行指示。
例如：当频段小于或等于3GHz的时候配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64；当频段大于3GHz、小于或等于 6GHz的时候配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128；当频段大于6GHz的时候配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为256。
又例如，当频段小于或等于6GHz的时候配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64；当频段大于6GHz的时候配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128或256。
再例如，当频段小于或等于6GHz的时候，可以配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64和128。当频段大于6GHz的时候，可以配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128和256。
还例如，当频段小于或等于6GHz的时候，可以配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64和128。当频段大于6GHz的时候，可以配置一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64和256。
还可以预先配置映射关系，例如，当一个随机接入资源关联的实际传输的下行信号数量大于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128。一个随机接入资源关联的实际传输的下行信号数量小于或等于第一预设阈值、且大于第二预设阈值时，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为256。一个随机接入资源关联的实际传输的下行信号数量小于或等于第二预设阈值时，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128。
又例如，当一个随机接入资源关联的实际传输的下行信号数量大于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128。当一个随机接入资源关联的实际传输的下行信号数量小于或等于第一预设阈值时，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64。
再例如，当一个随机接入资源关联的实际传输的下行信号数量大于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为256。当一个随机接入资源关联的实际传输的下行信号数量小于或等于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64。
还例如，当一个随机接入资源关联的实际传输的下行信号数量大于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为256，当一个随机接入资源关联的实际传输的下行信号数量小于或等于第一预设阈值的时候，一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128。
进一步地，网络设备根据实际传输的下行信号数量，确定一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数。
根据实际传输的下行信号数量，可以确定索引的数量，进而可以确定索引需要的比特数。例如表1所示的情况，有16个索引，那么需要4bit来指示。而表2所示的情况中，有8个索引，3bit就可以指示。
更具体地，一个随机接入资源关联的实际传输的下行信号数量可以为下述任一种：1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64。可见，一个随机接入资源关联的实际传输的下行信号数量的索引最多需要6比特。
举例说明，当一个随机接入资源关联的实际传输的下行信号数量不超过10时，一个随机接入资源关联的实际传输的下行信号数量的索引可以为4比特，分别指示：1,2,3,4,5,6,7,8,9,10这10种情况。或者，当一个随机接入资源关联的实际传输的下行信号数量不超过11时，一个随机接入资源关联的实际传输的下行信号数量的索引可以为4比特，分别指示：1,2,3,4,5,6,7,8,9,10,11这11种情况。
需要说明的是，随机接入资源关联的实际传输的下行信号也有多种情况：例如(1)一个实际传输的下行信号关联一个随机接入资源；或者，(2)多个实际传输的下行信号关联一个随机接入资源；或者，(3)一个实际传输的下行信号关联多个随机接入资源；或者，(4)多个实际传输的下行信号关联多个随机接入资源。
这四种情况可以分别分配标识位，即由一个或多个比特来指示随机接入资源关联实际传输的下行信号的方式。
可选地，可以(1)和(2)两种情况共用一个标识、(3)和(4)两种情况共用一个标识，这样只需要1比特就可以指示，从而节约资源。为了更具体地区分(1)和(2)，可以进一步根据一个实际传输的下行信号关联的随机接入前导数量确定，即一个实际传输的下行信号关联不同的随机接入前导数量对应不同的情况；可以采用类似地方法区分(3)和(4)。或者，根据一个随机接入资源关联的实际传输的下行信号数量来进一步区分(1)和(2)，或者区分(3)和(4)。即一个随机接入资源关联的实际传输的下行信号数量不同，对应的随机接入资源关联实际传输的下行信号的方式也不同。
进一步地，一个随机接入资源关联的实际传输的下行信号数量可以由一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量确定。
举例说明：
一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为64时，一个随机接入资源关联的实际传输的下行信号数量可以为下述任一项：1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16。
一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为128时，一个随机接入资源关联的实际传输的下行信号数量可以为下述任一项：1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16，17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32。
一个随机接入资源中基于竞争的随机接入前导数量和基于非竞争的随机接入前导数量的总和为256时，一个随机接入资源关联的实际传输的下行信号数量可以为下述任一项：1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56, 57,58,59,60,61,62,63,64。
需要说明的是，一个随机接入资源关联的实际传输的下行信号数量的索引还是由实际传输的下行信号数量确定。
随机接入资源与实际传输的下行信号之间关联的方式可以有以下至少4种：
第一种是一个下行信号关联一个随机接入资源；
第二种是多个下行信号关联一个随机接入资源；
第三种是一个下行信号关联一个随机接入资源；
第四种是多个下行信号关联多个随机接入资源。
可以将前两个分为一类，后面两个分为一类，网络设备可以采用1比特进行指示，可以在上述配置信息中占用1比特指示网络设备采用的是前一类还是采用的是后一类，例如0表示的是前一类，而1表示的是后一类。当采用的是前一类的时候，可以进一步使用一个下行信号关联的随机接入前导数量指示的是第一种或者第二种，也可以使用一个随机接入资源关联的下行信号数量指示是第一种还是第二种。例如预设一个下行信号关联的某些随机接入前导数量对应第一种方式，一个下行信号关联的另一些随机接入前导数量对应第二种方式。
当采用的是后一类的时候，可以采用类似的方式区分第三种方式和第四种方式，在此不再赘述。即可以进一步使用一个下行信号关联的随机接入前导数量指示的是第三种或者第四种，也可以使用一个随机接入资源关联的下行信号数量指示是第三种还是第四种。
类似地，网络设备根据在一个随机接入资源上传输的随机接入前导数量，确定配置信息中一个随机接入资源上传输的基于竞争的随机接入前导数量的索引所占比特数。
举例说明：在一个随机接入资源上传输的随机接入前导数量为下述任一项：64、128、256，相应地，一个随机接入资源上传输的基于竞争的随机接入前导数量的索引占4比特，可以指示以下一项或多项：4*k1、8*k1、16*k1，其中，k1为1～16的整数。
或者，在一个随机接入资源上传输的随机接入前导数量为64时，一个随机接入资源上传输的基于竞争的随机接入前导数量的索引占4比特。
或者，在一个随机接入资源上传输的随机接入前导数量为128时，一个随机接入资源上传输的基于竞争的随机接入前导数量的索引占5比特。可以指示以下一项或多项：4*k2，其中，k2为1～32的整数。(对应于5G标准提案：Number of preambles for CBRA per RO:5bits)。
或者，在一个随机接入资源上传输的随机接入前导数量为256时，一个随机接入资源上传输的基于竞争的随机接入前导数量的索引占5比特。可以指示以下一项或多项：8*k2、4*k1、16*k1。或者，一个随机接入资源上传输的基于竞争的随机接入前导数量的索引占4比特。可以指示以下一项或多项：8*k2。
可选地，一个随机接入资源里面基于竞争的随机前导数量可以根据一个随机接入资源里面的随机接入前导数目进行指示，例如当一个随机接入资源里面的随机接入前导数目为64的时候，可以使用4比特指示一个随机接入资源里面基于竞争的随机前导数目为4*k1，其中，k1为1～16的整数。也可以表示为4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64。
例如当一个随机接入资源里面的随机接入前导数目为128的时候，可以使用4比特指 示一个随机接入资源里面基于竞争的随机前导数目为8*k1，也可以表示8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128。
也可以使用5比特指示一个随机接入资源里面基于竞争的随机前导数目为4*k2，展开为4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64，68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128。
例如当一个随机接入资源里面的随机接入前导数目为256的时候，可以使用4比特指示一个随机接入资源里面基于竞争的随机前导数目为16*k1，展开表示为16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256。
也可以使用5比特指示一个随机接入资源里面基于竞争的随机前导数目为8*k2，也可以为8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,200,208,216,224,232,240,248,256。
也可以使用6比特指示一个随机接入资源里面基于竞争的随机前导数目为4*k3，k3为1～64的整数，展开可以为4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64，68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,198,200,204,208,212,216,220,224,228,232,236,240,244,248,252,256。
相应地，一个实际传输的下行信号关联的随机接入前导数量可以为floor(M1/N1)，其中一个随机接入资源上传输的基于竞争的随机接入前导数量为M1，一个随机接入资源关联的实际传输的下行信号数量N1。M1、N1均为大于0的整数。，floor表示向下取整。
或者，为A＝floor(M1/N1)，B＝M1mod N1，时间顺序上前B个实际传输的下行信号关联的随机接入前导数量为A+1，或者，时间顺序上最后B个实际传输的下行信号关联的随机接入前导数量为A+1。其他实际传输的下行信号关联的随机接入前导数量为A。
可选地，网络设备根据一个随机接入资源关联的实际传输的下行信号数量，确定配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数。
与前述实施例类似，可以根据可能存在的索引数量来最终确定索引所占比特数。
进一步地，基于上述S203、S204，终端根据配置信息还可以确定随机接入前导的数量与随机接入资源的关联关系、确定随机接入资源与实际传输的下行信号的关联关系、“随机接入前导的数量和实际传输的下行信号”与随机接入资源的关联关系。
进而终端可以根据实际传输的下行信号、随机接入资源与实际传输的下行信号的关联关系，确定目标随机接入资源。再结合随机接入前导的数量与随机接入资源的关联关系，采用目标随机接入资源，向网络设备发送随机接入前导。
一种实现方式中，一个随机接入资源关联的实际传输的下行信号数量，可以由一个随机接入资源关联的实际传输的下行信号组数量确定。
具体实现方式中，一个实际传输的下行信号组中所有实际传输的下行信号关联一个随机接入资源。
可选地，一个随机接入资源最多关联8个下行信号。
若一个实际传输的下行信号组中实际传输的下行信号个数小于或等于第三预设阈值L时，一个实际传输的下行信号组中所有实际传输的下行信号关联一个随机接入资源。L为 大于0的整数。
若一个实际传输的下行信号组中实际传输的下行信号个数大于第三预设阈值L时，一个实际传输的下行信号组中L个实际传输的下行信号关联一个随机接入资源。
更具体地，一个实际传输的下行信号组中指定索引号的下行信号关联同一个随机接入资源。即可以直接配置具体的一个或多个下行信号的索引号，这些索引号对应的下行信号关联到同一个随机接入资源。
剩余的实际传输的下行信号可以关联到其他随机接入资源，在此不再赘述。
或者，对于每个实际传输的下行信号组中下行信号分别编索引号的情况，可以是每个实际传输的下行信号组中相同索引号的下行信号关联同一个随机接入资源。
图3为本申请一实施例提供的关联关系示意图。
例如每个实际传输的下行信号组中实际传输的下行信号索引号为0～a，a为实际传输的下行信号组中实际传输的下行信号的个数，a为大于0的整数。其中。如图3所示，每个实际传输的下行信号组中索引号为0的实际传输的下行信号关联到一个随机接入资源；每个实际传输的下行信号组中索引号为1的实际传输的下行信号关联到一个随机接入资源，依次类推，不再赘述。
需要说明的是，上述每个实际传输的下行信号组中相同索引号的下行信号关联同一个随机接入资源时：
若实际传输的下行信号组中相同索引号的下行信号个数大于第三预设阈值L，那么按照索引号顺序，实际传输的下行信号组中前L个实际传输的下行信号组中相同索引号的下行信号关联同一个随机接入资源。
若实际传输的下行信号组中相同索引号的下行信号个数小于或等于第三预设阈值L，那么实际传输的下行信号组中相同索引号的下行信号关联同一个随机接入资源。
另外，上述关联到同一个随机接入资源的下行信号的索引号可以是连续索引号，例如索引号0～(L-1)的下行信号关联到同一个随机接入资源。
或者，关联到同一个随机接入资源的下行信号的索引号可以是非连续索引号，本申请不作限制。
其中，关联到同一个随机接入资源的下行信号的索引号可以是非连续索引号时，关联到同一个随机接入资源的下行信号的索引号间隔相同。
在上述实施例的基础上，关联到同一个随机接入资源的下行信号的索引号是连续索引号时：
(1)每个随机接入资源关联的实际传输的下行信号数量相同。
第i个随机接入资源上关联的实际传输的下行信号索引号可以为：i*floor(W1/X1)～(i+1)*floor(W1/X1)-1，其中实际传输的下行信号数量为W1，随机接入资源的数量为X1。W1、X1均为大于0的整数。
例如第0个随机接入资源上关联的实际传输的下行信号索引号为0,1,2，…。
(2)按照随机接入资源的索引顺序，除最后一个随机接入资源以外的其他随机接入资源关联的实际传输的下行信号数量相同。
最后一个随机接入资源关联的实际传输的下行信号数量，大于其他随机接入资源关联的实际传输的下行信号数量。
具体地，最后一个随机接入资源关联的实际传输的下行信号数量比其他随机接入资源关联的实际传输的下行信号数量多W1mod X1个。
例如，其他随机接入资源关联的实际传输的下行信号索引号为i*floor(W1/X1)至(i+1)*floor(W1/X1)-1。例如第0个随机接入资源上关联的实际传输的下行信号索引号为0,1,2，…。
最后一个随机接入资源关联的实际传输的下行信号索引号为(X1-1)*floor(W1/X1)至W1-1。
(3)按照随机接入资源的索引顺序，前K1个随机接入资源关联的实际传输的下行信号数量大于其他随机接入资源关联的实际传输的下行信号数量。K1为大于0的整数。
例如前K1个随机接入资源中每个随机接入资源关联的实际传输的下行信号数量，比其他随机接入资源关联的实际传输的下行信号数量多W1mod X1个。
前K1个随机接入资源中每个随机接入资源关联的实际传输的下行信号索引号为i*ceil(W1/X1)至(i+1)*ceil(W1/X1)，其中i小于或等于K1。
其他随机接入资源关联的实际传输的下行信号索引号为i*floor(W1/X1)+K1～(i+1)*floor(W1/X1)-1+K1。
(4)按照随机接入资源的索引顺序，除第0个随机接入资源以外的其他随机接入资源关联的实际传输的下行信号数量相同。
第0个随机接入资源关联的实际传输的下行信号数量，比其他随机接入资源关联的实际传输的下行信号数量多W1mod X1个。
第0个随机接入资源关联的实际传输的下行信号索引号为0,1,2,…,floor(W1/X1)+K1-1。
其他随机接入资源关联的实际传输的下行信号索引号为i*floor(W1/X1)+K1至(i+1)*floor(W1/X1)+K1-1。
(5)按照随机接入资源的索引顺序，最后K1个随机接入资源关联的实际传输的下行信号数量大于其他随机接入资源关联的实际传输的下行信号数量。K1为大于0的整数。
最后K1个随机接入资源关联的实际传输的下行信号数量，比其他随机接入资源关联的实际传输的下行信号数量多W1mod X1个。
最后K1个随机接入资源关联的实际传输的下行信号索引号为i*floor(W1/X1)至(i+1)*floor(W1/X1)，其中i<X1-K1。
其他随机接入资源关联的实际传输的下行信号索引号为i*ceil(W1/X1)-X1+K1至(i+1)*ceil(W1/X1)-1-X1+K1。
(6)最后一个随机接入资源关联的实际传输的下行信号数量，小于其他随机接入资源关联的实际传输的下行信号数量。
最后一个随机接入资源关联的实际传输的下行信号数量比其他随机接入资源关联的实际传输的下行信号数量少1。
最后一个随机接入资源关联的实际传输的下行信号索引号为：(X1-1)*ceil(W1/X1)至W1-1。
其他随机接入资源关联的实际传输的下行信号索引号为：i*ceil(W1/X1)～(i+1)*ceil(W1/X1)-1。
(7)第0个随机接入资源关联的实际传输的下行信号数量，小于其他随机接入资源关联的实际传输的下行信号数量。
第0个随机接入资源关联的实际传输的下行信号索引号为：0,1,2,…,ceil(W1/X1)-K1-1。
其他随机接入资源关联的实际传输的下行信号索引号为：i*ceil(W1/X1)-K1至(i+1)*ceil(W1/X1)–K1-1。
另外，关联到同一个随机接入资源的下行信号的索引号是非连续索引号时：
(1)可以配置每个随机接入资源关联的实际传输的下行信号的具体索引号。
例如第i个随机接入资源关联的实际传输的下行信号索引号为：i，i+X2，i+2X2，…。其中X2可以等于X1，X1为随机接入资源的数量。X2为大于0的整数。或者，X2不等于X1，X2可以为1～64之间的任意一个整数。
(2)也可以通过计算的方式配置每个随机接入资源关联的实际传输的下行信号的具体索引号。
例如对于待分组的随机接入前导索引q，如果q mod X2＝i，则表示第q个实际传输的下行信号关联到第i个随机接入资源上。q为大于0的整数。
也可以是其他的分组公式，例如对于待分组的随机接入前导索引q，如果q mod X2＝i，则表示第q个随机接入前导索引映射到第i个实际传输的下行信号上。其中X2的值可以是网络设备配置的，也可以是固定的，固定的情况下，X2为随机接入资源的数量。
一实施例中，上述配置信息指示在一个随机接入资源上传输的随机接入前导数量时，假设，在一个随机接入资源上传输的随机接入前导(Preamble)数量为P。P为大于0的整数。
例如携带P的数值64或128或256等，在此不作限制。
另外，除了由网络设备通过配置信息指示的方式，还可以预先配置固定的P值。或者，通过协议规定P值。本申请不做限制。
另一实施例中，配置信息不直接指示在一个随机接入资源上传输的随机接入前导数量：
上述配置信息指示一个下行信号关联的随机接入前导数量时，配置信息中某个字段标识一个实际传输的下行信号关联的随机接入前导数量k1，其中k1为大于0的整数。
终端可以根据一个下行信号关联的随机接入前导数量，进一步确定一个随机接入资源上传输的随机接入前导数量。
具体地，每个实际传输的下行信号组关联k1个随机接入前导，终端根据每个随机接入资源关联的实际传输的下行信号组个数m1，就可以得到P＝m1*k1。m1为大于0的整数。
又一种实现方式中，基于所有实际传输的下行信号数量配置。配置信息指示一个实际传输的下行信号关联的随机接入前导个数k2，其中，k2为大于0的整数。
具体地，终端根据配置信息指示的k2，以及每个随机接入前导关联的实际传输的下行信号个数n2，就可以确定出P＝n2*k2，其中，n2为大于0的整数。
再一种实现方式中，配置信息指示随机接入前导参数k3和倍数因子n3，其中，k3、n3为大于0的整数。终端根据k3和n3，可以确定P＝n3*k3。
还有一种实现方式中，基于实际传输的下行信号组数量、以及每个实际传输的下行信号组包含实际传输的下行信号数量配置P。
配置信息指示一个实际传输的下行信号关联的随机接入前导个数k4，其中，k4为大 于0的整数。终端根据一个随机接入资源关联的下行信号组个数m2、一个实际传输的下行信号组包含实际传输的下行信号数量n4以及k4，确定P＝m2*n4*k4。m2、n4、k4为大于0的整数。
可选地，配置一个随机接入资源关联的随时接入前导数量(即一个随机接入资源上传输的随机接入前导数量)时，还可以采用索引的方式和一个下行信号关联的随时接入前导数量联合配置。
一种配置方法中，上述配置信息包括：一个随机接入资源上传输的随时接入前导数量和一个下行信号关联的随时接入前导数量集合的索引号。一个索引对应一对：一个随机接入资源上传输的随时接入前导数量，一个下行信号关联的随时接入前导数量。
如果配置信息用5比特(bit)指示：一个随机接入资源上传输的随时接入前导数量N_C和一个下行信号关联的随时接入前导数量N_SS集合的索引号，索引号的配置可以如表3所示：
表3
Figure PCTCN2018110966-appb-000004
每行的索引号，依次表示N_C与N_SS中一列的值。例如索引号0表示(64,4)，即一个随机接入资源上传输的随时接入前导数量N_C＝64、且一个下行信号关联的随时接入前导数量N_SS＝4。索引号9表示(64,64)，即一个随机接入资源上传输的随时接入前导数量N_C＝64、且一个下行信号关联的随时接入前导数量N_SS＝64。第二行类似，索引号10表示(128，8)，即一个随机接入资源上传输的随时接入前导数量N_C＝128、且一个下行信号关联的随时接入前导数量N_SS＝8。以此类推，在此不再赘述。
如果配置信息用6比特(bit)指示：一个随机接入资源上传输的随时接入前导数量N_C和一个下行信号关联的随时接入前导数量N_SS集合的索引号，索引号的配置可以如表4所示：
表4
Figure PCTCN2018110966-appb-000005
与表3类似，每行的索引号，依次表示N_C与N_SS中一列的值。例如索引号0表示(64,4)，即一个随机接入资源上传输的随时接入前导数量N_C＝64、且一个下行信号关联的随时接入前导数量N_SS＝4。索引号49表示(256,256)，即一个随机接入资源上传输的随时接入前导数量N_C＝256、且一个下行信号关联的随时接入前导数量N_SS＝256。
在上述实施例的基础上，随机接入前导也可以分组。假设一个随机接入资源上传输P个随机接入前导，P个随机接入前导分为t组随机接入前导组，每组随机接入前导关联一 个下行信号或者一组下行信号组。例如，一个随机接入资源关联的P个随机接入前导分为t组，相应地，一个随机接入资源关联t个下行信号，或者，一个随机接入资源关联t个下行信号组。t为大于0的整数。
每组中随机接入前导的数量可以相同，也可以不相同，本申请不作限制。可以预先配置每组中随机接入前导的数量，例如通过协议或者预先协商配置，也可以由网络设备向终端发送的配置信息来配置，例如上述配置信息还可以指示随机接入前导的分组信息，或者由其他配置信息来配置。
一种实施例中，每组中随机接入前导的数量相同，可以直接配置每组中随机接入前导的数量，或者配置每组中随机接入前导数量的计算公式。可选地，每组中随机接入前导的数量为floor(P/M2)。
本实施例中，M2表示下述任一种情况：随机接入前导组的数量、实际传输的下行信号组数量、实际传输的下行信号数量。M2为大于0的整数。
另一种实施例中，每组中随机接入前导的数量不同，可以有以下多种情况：
1)按照随机接入前导组的索引顺序，第一组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如：第一组随机接入前导组中随机接入前导的数量为[floor (P/M2)]+(P mod M2)；其他随机接入前导组中随机接入前导的数量为floor(P/M2)。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
一个随机接入前导组中随机接入前导的数量，也可以是一个下行信号关联的随机接入前导数量。
例如有64个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量分别为24、20、20。
2)按照随机接入前导组的索引顺序，前t1组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如，前t1组随机接入前导组中随机接入前导的数量为floor(P/M2)+1；其他随机接入前导组中随机接入前导的数量为floor(P/M2)。t1为大于或等于1的整数，可选地，t1可以等于P mod M2。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如有64个随机接入前导，分为5组，每组随机接入前导组中随机接入前导的数量分别为13、13、13、13、12。
3)按照随机接入前导组的索引顺序，最后一组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如：最后一组随机接入前导组中随机接入前导的数量为[floor(P/M2)]+(P mod M2)；其他随机接入前导组中随机接入前导的数量为floor(P/M2)。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如有64个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量 分别为20、20、24。
4)按照随机接入前导组的索引顺序，最后t1组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如，最后t1组随机接入前导组中随机接入前导的数量为floor(P/M2)+1；其他随机接入前导组中随机接入前导的数量为floor(P/M2)。t1为大于或等于1的整数，可选地，t1可以等于P mod M2。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如有64个随机接入前导，分为5组，每组随机接入前导组中随机接入前导的数量分别为12、13、13、13、13。
本实施例中，M2表示下述任一种情况：随机接入前导组的数量、实际传输的下行信号组数量、实际传输的下行信号数量。M2为大于0的整数。
可选地，也可以是对部分随机接入前导分组，例如将P个随机接入前导分为两类，第一类包括R个随机接入前导、第二类包括Q个随机接入前导，P＝Q+R。将P个随机接入前导中的R个随机接入前导分成t’组，剩余Q个随机接入前导不分组。或者，将Q个随机接入前导分成t’组，剩余R个随机接入前导不分组。第一类和第二类随机接入前导可以互不相关，也可以相互关联，本申请不做限制。
t’、R、Q为大于0的整数，R、Q小于P。P、Q和R中的一个值或两个值可以是灵活配置的，或者是规定的固定值。
一种实施方式中，其中一类随机接入前导可以应用于非竞争的随机接入过程(Contention free random access)，例如连接态(RRC)下追踪区域(Tracking Area，TA)恢复、连接态下资源请求、其他系统信息(other system information，OSI)请求等。
可选地，第二类随机接入前导应用于非竞争的随机接入过程。第一类随机接入前导可以进行分组。
与前述实施例类似地，每个随机接入前导组中随机接入前导的数量可以相同、也可以不同，本申请不做限制。
可以预先配置每组中随机接入前导的数量，例如通过协议或者预先协商配置，也可以由网络设备向终端发送的配置信息来配置，例如上述配置信息还可以指示随机接入前导的分组信息，或者由其他配置信息来配置。
一种实施例中，每组中随机接入前导的数量相同，可以直接配置每组中随机接入前导的数量，或者配置每组中随机接入前导数量的计算公式。可选地，每组中随机接入前导的数量为floor(R/M2)。
本实施例中，M2表示下述任一种情况：随机接入前导组的数量、实际传输的下行信号组数量、实际传输的下行信号数量。M2为大于0的整数。
另一种实施例中，每组中随机接入前导的数量不同，可以有以下多种情况：
1)按照随机接入前导组的索引顺序，第一组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如：第一组随机接入前导组中随机接入前导的数量为[floor(R/M2)]+(R mod M2)；其他随机接入前导组中随机接入前导的数量为floor(R/M2)。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如第一类随机接入前导有56个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量分别为23、18、18。
2)按照随机接入前导组的索引顺序，前t1组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如，前t1组随机接入前导组中随机接入前导的数量为floor(R/M2)+1；其他随机接入前导组中随机接入前导的数量为floor(R/M2)。t1为大于或等于1的整数，可选地，t1可以等于R mod M2。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如第一类随机接入前导有59个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量分别为20、20、19。
3)按照随机接入前导组的索引顺序，最后一组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如：最后一组随机接入前导组中随机接入前导的数量为[floor(R/M2)]+(R mod M2)；其他随机接入前导组中随机接入前导的数量为floor(R/M2)。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如第一类随机接入前导有59个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量分别为18、18、23。
4)按照随机接入前导组的索引顺序，最后t1组随机接入前导组中随机接入前导的数量大于其他随机接入前导组中随机接入前导的数量。
可以指示计算公式，例如，最后t1组随机接入前导组中随机接入前导的数量为floor(R/M)+1；其他随机接入前导组中随机接入前导的数量为floor(R/M2)。t1为大于或等于1的整数，可选地，t1可以等于R mod M2。
或者，直接配置随机接入前导组的数量、以及每组随机接入前导组中随机接入前导的数量。
例如第一类随机接入前导有59个随机接入前导，分为3组，每组随机接入前导组中随机接入前导的数量分别为19、20、20。
本实施例中，M2表示下述任一种情况：随机接入前导组的数量、实际传输的下行信号组数量、实际传输的下行信号数量。M为大于0的整数。
随机接入前导组的数量可以由实际传输的下行信号、或者随机接入的下行信号组确定。当然，也可以由网络设备配置随机接入前导组的数量，或者由协议规定好随机接入前导组的数量，本申请不作限制。
各随机接入前导组中的随机接入前导可以完全不重合，即每个随机接入前导组中的随机接入前导都不同。或者，不同随机接入前导组中的随机接入前导存在重合，例如某个随机接入前导可以在多个随机接入前导组中。
需要说明的是，上述配置信息可以由下述任一消息携带：主信息块(Master Information Block，MIB)，剩余最小系统信息(Remaining System Information，RMSI)，新空口系统信息块1(NR-SIB1)，新空口系统信息块2(NR-SIB2)，系统信息，下行控制信息(Downlink Control Information，DCI)，无线资源控制(Radio Resource Control，RRC)，媒体接入控制控制元素(Media Access control-control element，MAC-CE)。
在上述实施例的基础上，可以将P个随机接入前导与实际传输的下行信号、或者实际传输的下行信号组关联。
可选地，网络设备向终端发送关联关系配置信息，该关联关系配置信息指示随机接入前导与实际传输的下行信号的关联关系，或者，关联关系配置信息指示随机接入前导与实际传输的下行信号组的关联关系。
该关联关系配置信息和上述配置信息可以是同一条配置信息，即上述配置信息也指示随机接入前导与实际传输的下行信号的关联关系，和/或，随机接入前导与实际传输的下行信号组的关联关系。
当然，上述关联关系配置信息和上述配置信息也可以是不同的两条信息，在此不作限制。
类似地，该关联关系配置信息可以由下述任一消息携带：主信息块(Master Information Block，MIB)，剩余最小系统信息(Remaining System Information，RMSI)，新空口系统信息块1(NR-SIB1)，新空口系统信息块2(NR-SIB2)，系统信息，下行控制信息(Downlink Control Information，DCI)，无线资源控制(Radio Resource Control，RRC)，媒体接入控制控制元素(Media Access control-control element，MAC-CE)。
可选地，将每个实际传输的下行信号关联的随机接入前导分为一组，或者，将每个实际传输的下行信号组关联的随机接入前导分为一组。需要说明的是，可以基于前述随机接入前导组中随机接入前导的数量进行分组。
具体实现过程中，随机接入前导的分组可以是连续的或者不连续的。
一种实现方式中，每个实际传输的下行信号关联的随机接入前导索引号连续，或者，每个实际传输的下行信号组关联的随机接入前导索引号连续。M3表示实际传输的下行信号数量，M4表示实际传输的下行信号组数量，M3、M4为大于0的整数。具体有如下几种情况：
(1)每个实际传输的下行信号关联的随机接入前导数量相同。
第i个实际传输的下行信号关联的随机接入前导索引号包括：i*floor(P/M3)至(i+1)*floor(P/M3)-1，例如第0个实际传输的下行信号关联的随机接入前导索引号为0,1,2，…。
类似地，每个实际传输的下行信号组关联的随机接入前导数量相同。
第i个实际传输的下行信号组关联的随机接入前导索引号包括：i*floor(P/M4)至(i+1)*floor(P/M4)-1，例如第0个实际传输的下行信号组关联的随机接入前导索引号为0,1,2，…。
(2)按照实际传输的下行信号索引号，最后一个实际传输的下行信号关联的随机接入前导数量比其他实际传输的下行信号关联的随机接入前导数量多。
具体地，前M3-1个实际传输的下行信号中，第i个实际传输的下行信号关联的随机接入前导索引号为：i*floor(P/M3)至(i+1)*floor(P/M3)-1，例如第0个实际传输的下行信号关联的随机接入前导索引号为0,1,2，…。i小于或等于M3-1。
最后一个实际传输的下行信号关联的随机接入前导索引号为：(M3-1)*floor(P/M3)至 P-1。
类似地，按照实际传输的下行信号组索引号，最后一个实际传输的下行信号组关联的随机接入前导数量比其他实际传输的下行信号组关联的随机接入前导数量多。
具体地，前M4-1个实际传输的下行信号组中，第i个实际传输的下行信号组关联的随机接入前导索引号为：i*floor(P/M4)至(i+1)*floor(P/M4)-1，例如第0个实际传输的下行信号组关联的随机接入前导索引号为0,1,2，…。
最后一个实际传输的下行信号组关联的随机接入前导索引号为：(M4-1)*floor(P/M4)至P-1。
(3)按照实际传输的下行信号索引号，前t1个实际传输的下行信号关联的随机接入前导的数量比其他实际传输的下行信号关联的随机接入前导数量多。可选地，t1可以等于P mod M3。
前t1个实际传输的下行信号中，第i个实际传输的下行信号关联的随机接入前导索引号为：i*ceil(P/M3)至(i+1)*ceil(P/M3)，i小于或等于t1，或者i小于1。
后M3-t1个实际传输的下行信号中，第i个实际传输的下行信号关联的随机接入前导索引号为：i*floor(P/M3)+P mod M3至(i+1)*floor(P/M3)-1+P mod M3。i大于t1。
类似地，按照实际传输的下行信号组索引号，前t2个实际传输的下行信号组关联的随机接入前导的数量比其他实际传输的下行信号组关联的随机接入前导数量多。可选地，t2可以等于P mod M4。
前t2个实际传输的下行信号组中，第i个实际传输的下行信号组关联的随机接入前导索引号为：i*ceil(P/M4)至(i+1)*ceil(P/M4)，i小于或等于t2。
后M4-t2个实际传输的下行信号组中，第i个实际传输的下行信号组关联的随机接入前导索引号为：i*floor(P/M4)+t2至(i+1)*floor(P/M4)-1+t2。i大于t2。
(4)按照实际传输的下行信号索引号，第一个实际传输的下行信号关联的随机接入前导数量比其他实际传输的下行信号关联的随机接入前导数量多。且其他实际传输的下行信号关联的随机接入前导数量可以相同。
第一个实际传输的下行信号关联的随机接入前导索引号为：0,1,2,…,floor(P/M3)+Pmod M3-1。
其他下行信号中，第i个实际传输的下行信号组关联的随机接入前导索引号为：i*floor(P/M3)+P mod M3至(i+1)*floor(P/M3)+P mod M3-1。
类似地，按照实际传输的下行信号组索引号，第一个实际传输的下行信号组关联的随机接入前导数量比其他实际传输的下行信号组关联的随机接入前导数量多。且其他实际传输的下行信号组关联的随机接入前导数量可以相同。
第一个实际传输的下行信号组关联的随机接入前导索引号为：0,1,2,…,floor(P/M4)+Pmod M4-1。
其他下行信号组中，第i个实际传输的下行信号组关联的随机接入前导索引号为：i*floor(P/M4)+P mod M4至(i+1)*floor(P/M4)+P mod M4-1。
(5)按照实际传输的下行信号索引号，最后t1个实际传输的下行信号关联的随机接入前导的数量比其他实际传输的下行信号关联的随机接入前导数量多。可选地，t1可以等于P mod M3。
最后t1个实际传输的下行信号中，第i个下行信号关联的随机接入前导索引号为：i*floor(P/M3)～(i+1)*floor(P/M3)；
前M3-t1个实际传输的下行信号中，第i个下行信号关联的随机接入前导索引号为：i*ceil(P/M3)-M3+P mod M3～(i+1)*ceil(P/M3)-1-X+P mod M3。
(6)按照实际传输的下行信号索引号，最后一个实际传输的下行信号关联的随机接入前导数量比其他实际传输的下行信号关联的随机接入前导数量少。且其他实际传输的下行信号关联的随机接入前导数量可以相同。
最后一个实际传输的下行信号关联的随机接入前导索引号为：(M3-1)*ceil(P/M3)至P-1。
前M3-1个实际传输的下行信号中，第i个下行信号关联的随机接入前导索引号为：i*ceil(P/M3)至(i+1)*ceil(P/M3)-1。
类似地，按照实际传输的下行信号组索引号，最后一个实际传输的下行信号组关联的随机接入前导数量比其他实际传输的下行信号组关联的随机接入前导数量少。且其他实际传输的下行信号关联的随机接入前导数量可以相同。
最后一个实际传输的下行信号组关联的随机接入前导索引号为：(M4-1)*ceil(P/M4)至P-1。
前M4-1个实际传输的下行信号组中，第i个下行信号组关联的随机接入前导索引号为：i*ceil(P/M4)至(i+1)*ceil(P/M4)-1。
需要说明的是，前述几种方式中随机接入前导的索引号、实际传输的下行信号索引号、实际传输的下行信号组索引号都从0开始计数。
(7)按照实际传输的下行信号索引号，第一个实际传输的下行信号关联的随机接入前导数量比其他实际传输的下行信号关联的随机接入前导数量少。且其他实际传输的下行信号关联的随机接入前导数量可以相同。
一个实际传输的下行信号关联的随机接入前导索引为：0,1,2,…,ceil(P/M3)-P mod M3-1。
其他实际传输的下行信号中，第i个下行信号关联的随机接入前导索引号为：i*ceil(P/M3)-P mod M3至(i+1)*ceil(P/M3)-P mod M3-1。
类似地，按照实际传输的下行信号组索引号，第一个实际传输的下行信号组关联的随机接入前导数量比其他实际传输的下行信号组关联的随机接入前导数量少。且其他实际传输的下行信号组关联的随机接入前导数量可以相同。
一个实际传输的下行信号组关联的随机接入前导索引为：0,1,2,…,ceil(P/M4)-P mod M4-1。
其他实际传输的下行信号组中，第i个下行信号组关联的随机接入前导索引号为：i*ceil(P/M4)-P mod M4至(i+1)*ceil(P/M4)-P mod M4-1。
可选地，基于竞争的随机接入前导和基于非竞争的随机接入前导的索引号是连续的。一个下行信号关联的基于竞争的随机接入前导是不连续的，例如按照索引顺序依次分配给不同的下行信号，例如分配给第i个下行信号的随机接入前导索引为H1～H3，其中索引为H1～H2随机接入前导用作基于竞争的随机接入前导。而索引为H2+1～H3随机接入前导用 作基于竞争的随机接入前导；分配给第i+1个下行信号的随机接入前导索引为H4～H6，其中索引为H4～H5随机接入前导用作基于竞争的随机接入前导，而索引为H5+1～H6随机接入前导用作基于竞争的随机接入前导,其中H6>H5>H4>H3>H2>H1，H4＝H3+1，这种情况下，不同下行信号的基于竞争的随机接入前导是不连续的。
可选地，基于竞争的随机接入前导和基于非竞争的随机接入前导是连续的，一个下行信号关联的基于竞争的随机接入前导是连续的，例如按照索引顺序依次分配给不同的下行信号，例如分配给第i个下行信号的基于竞争的随机接入前导索引为H0～H1，而分配给第i+1个下行信号的基于竞争的随机接入前导索引为H1+1～H2，分配给第i+2个下行信号的基于竞争的随机接入前导索引为H2+1～H3，其中H3>H2>H1>H0。同样的，一个下行信号关联的非基于竞争的随机接入前导是也可以是连续的，例如按照索引顺序依次分配给不同的下行信号，例如分配给第i个下行信号的基于非竞争的随机接入前导索引为H0～H1，而分配给第i+1个下行信号的基于非竞争的随机接入前导索引为H1+1～H2，分配给第i+2个下行信号的非竞争的随机接入前导索引为H2+1～H3，其中H3>H2>H1>H0。
其中，H6、H5、H4、H3、H2、H1均为大于0的整数。
另一种实现方式中，每个实际传输的下行信号关联的随机接入前导索引号非连续，或者，每个实际传输的下行信号组关联的随机接入前导索引号非连续。
可选地，可以直接配置关联到每个实际传输的下行信号的随机接入前导索引号，或者，关联到每个实际传输的下行信号组的随机接入前导索引号。
例如，第i个实际传输的下行信号关联的随机接入前导索引号为：i，i+T，i+2T，…等。其中，T为大于0的整数。可选地，T＝M3，但不以此为限，T也可以为1～64之间的任意一个整数。
类似地，第i个实际传输的下行信号组关联的随机接入前导索引号为：i，i+T，i+2T，…等。其中，T为大于0的整数。可选地，T＝M4，但不以此为限，T也可以为1～64之间的任意一个整数。
可选地，还可以配置关联到每个实际传输的下行信号的随机接入前导索引号计算公式，或者，关联到每个实际传输的下行信号组的随机接入前导索引号计算公式。
例如，对于待分组的随机接入前导索引号K，如果K mod M3＝i，则表示随机接入前导K与第i个下行信号关联。类似地，对于待分组的随机接入前导索引号K，如果K mod M4＝i，则表示随机接入前导K与第i个下行信号组关联。
或者，对于待分组的随机接入前导索引号K，如果K mod T＝i，则表示随机接入前导K与第i个实际传输的下行信号关联。类似地，对于待分组的随机接入前导索引号K，如果K mod T＝i，则表示随机接入前导K与第i个实际传输的下行信号组关联。其中，K从0开始计数。
或者，对于下行信号来说：当i>P mod M3时，第i个实际传输的下行信号关联的随机接入前导索引号为：i+N(1～floor(P/N))。i小于或等于P mod M3时，第i个实际传输的下行信号关联的随机接入前导索引号为：i+N(1～ceil(P/N))。
对于下行信号组来说，当i>P mod M4时，第i个实际传输的下行信号组关联的随机接入前导索引号为：i+N(1～floor(P/N))。i小于或等于P mod M4时，第i个实际传输的下行信号组关联的随机接入前导索引号为：i+N(1～ceil(P/N))。
另一种实现方式中，每个实际传输的下行信号关联的基于竞争的随机接入前导索引号和或基于非竞争的随机接入前导是非连续的。
基于竞争的随机接入前导和基于非竞争的随机接入前导的索引非连续时：
网络设备分配J个下行信号关联的基于竞争的随机接入前导为非连续的时候，按照J+1个下行信号进行分配。分配的索引为：(i-1),(i-1)+J+1,(i-1)+2(J+1)…….。其中，一个随机接入资源关联的J个下行信号。
其中，除上述J个下行信号以外的一个下行信号为虚拟的下行信号。可以将基于竞争的随机接入前导(前导组)关联到这个虚拟下行信号，或者，将基于非竞争的随机接入前导(前导组)关联到这个虚拟下行信号。
J个关联了基于竞争的随机接入前导的下行信号当做一个整体+1个虚拟的下行信号，那么总共2个，例如则第0个虚拟的下行信号关联的随机接入前导的索引为：0,2,4,6,8……，第1个虚拟的下行信号关联的随机接入前导的索引为：1,3,5,7,9……。
所述虚拟的下行信号可以对应为CSI-RS、系统信息、寻呼信息。例如所述随机接入前导或者随机接入前导分组用于关联到CSI-RS时，该CSI-RS当作为一个虚拟的下行信号；再例如所述随机接入前导或者随机接入前导分组用于触发/请求系统信息时，该系统信息被作为一个虚拟下行信号；再例如所述随机接入前导或者随机接入前导分组用于触发寻呼消息时，该寻呼消息被当作为一个虚拟的下行信号。
一种随机接入前导的分配方法为，一个下行信号关联的基于竞争的随机接入前导索引在基于竞争的随机接入前导集合中不连续。按顺序依次分配给不同的下行信号，例如分配给第i个下行信号的索引为：(i-1),(i-1)+J,(i-1)+2J…….。可以将基于竞争的随机接入前导(前导组)关联到这个虚拟下行信号，或者，将基于非竞争的随机接入前导(前导组)关联到这个虚拟下行信号。
一个下行信号关联的基于竞争的随机接入前导索引在基于竞争的随机接入前导集合中是连续的，例如分配给第i个下行信号的基于竞争的随机接入前导索引为H0～H1，而分配给第i+1个下行信号的基于竞争的随机接入前导索引为H1+1～H2，分配给第i+2个下行信号的基于竞争的随机接入前导索引为H2+1～H3，其中H3>H2>H1>H0。
在上述实施例的基础上，t个随机接入前导组和M3个实际传输的下行信号之间的关联关系，有以下3种情况：
(1)t＝M3，那么一个实际传输的下行信号关联一个随机接入前导组。具体可以由网络设备向终端发送配置信息进行配置，或者由协议预先规定。
可以是实际传输的下行信号与随机接入前导组一一对应，即每个实际传输的下行信号都有一个专门的随机接入前导组。
(2)t<M3，多个实际传输的下行信号关联一个随机接入前导组。
一种方式中，第i个实际传输的下行信号关联的随机接入前导组索引号为i mod t或者为floor(i/t)。
例如t＝4，M3＝7，与第0个实际传输的下行信号关联的随机接入前导组索引号为0，与第3个实际传输的下行信号关联的随机接入前导组索引号为0或3。
另一种方式中，预先配置好实际传输的下行信号组合，例如关联到某个随机接入前导 组的实际传输的下行信号索引号包括y1、y2……等。
例如t＝3，M3＝5，实际传输的下行信号索引号组合可以为[1或2，3或4,5]或[1/2,3,4/5]或[1,2/3,4/5]等。
或者，还可以将部分实际传输的下行信号与下一个随机接入资源(按照索引号的下一个)的随机接入前导组中。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来指示采用哪一种方式关联。
(3)t大于或等于M3，一个实际传输的下行信号可以关联多个随机接入前导组。
一种方式中，第i(i从0开始)个实际传输的下行信号与随机接入前导组k关联，k为随机接入前导组的索引号，其中k mod M3＝i，或者floor(k/M3)。
另一种方式中，预先配置好实际传输的下行信号组合，例如关联到某个随机接入前导组的实际传输的下行信号包括y1、y2……等。
例如t＝3，M3＝5，实际传输的下行信号索引号组合可以为[1,2,3,1,2]或[1,2,3,2,1]或[1,2,3,1,3]或[1,2,3,3,1]；或[1,2,3,2,3],或[1,2,3,3,2]。
又一种方式中，可以将部分随机接入前导组释放。例如，将索引号大于t的随机接入前导组释放，剩余的随机接入前导组与实际传输的下行信号一一对应。这里将部分随机接入前导组释放，可以为将部分随机接入前导组标识为不使用。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来指示采用哪一种方式关联。
类似地，t个随机接入前导组和M4个实际传输的下行信号组之间的关联关系，有以下3种情况：
(1)t＝M3*M4，那么一个实际传输的下行信号关联一个随机接入前导组。具体可以由网络设备向终端发送配置信息进行配置，或者由协议预先规定。
可以是实际传输的下行信号与随机接入前导组一一对应，即每个实际传输的下行信号都有一个专门的随机接入前导组。
(2)t<M3*M4，多个实际传输的下行信号关联一个随机接入前导组。
一种方式中，第i个实际传输的下行信号组关联的随机接入前导组索引号为i mod t或者为floor(i/t)。
例如t＝4，M3*M4＝7，与第0个实际传输的下行信号关联的随机接入前导组索引号为0，与第3个实际传输的下行信号关联的随机接入前导组索引号为0或3。
另一种方式中，预先配置好实际传输的下行信号组合，例如关联到某个随机接入前导组的实际传输的下行信号索引号包括y1、y2……等。
例如t＝3，M3*M4＝5，实际传输的下行信号索引号组合可以为[1或2，3或4,5]或[1/2,3,4/5]或[1,2/3,4/5]等。
或者，还可以将部分实际传输的下行信号与下一个随机接入资源(按照索引号的下一个)的随机接入前导组中。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来指示采用哪一种方式关联。
(3)t大于或等于M3*M4，一个实际传输的下行信号可以关联多个随机接入前导组。
一种方式中，第i(i从0开始)个实际传输的下行信号组与随机接入前导组k关联，k为随机接入前导组的索引号，其中k mod(M3*M4)＝i，或者floor(k/M3*M4)。
例如t＝3，M3＝5，实际传输的下行信号索引号组合可以为[1,2,3,1,2]或[1,2,3,2,1]或[1,2,3,1,3]或[1,2,3,3,1]；或[1,2,3,2,3],或[1,2,3,3,2]。
又一种方式中，可以将部分随机接入前导组释放。例如，将索引号大于t的随机接入前导组释放，剩余的随机接入前导组与实际传输的下行信号一一对应。这里将部分随机接入前导组释放，可以为将部分随机接入前导组标识为不使用。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来指示采用哪一种方式关联。
可选地，低频场景下，即频段低于6GHz的场景，或者低于3GHz的场景下，假设M5个实际传输的下行信号关联的随机接入前导组数量为t：
(1)M5＝t时，那么一个实际传输的下行信号关联一个随机接入前导组。具体可以由网络设备向终端发送配置信息进行配置，或者由协议预先规定。
可以是实际传输的下行信号与随机接入前导组一一对应，即每个实际传输的下行信号都有一个专门的随机接入前导组。
(2)t<M5，多个实际传输的下行信号关联一个随机接入前导组。
一种方式中，第i个实际传输的下行信号关联的随机接入前导组索引号为i mod t或者为floor(i/t)。i为大于0的整数。
例如t＝4，M5＝7，与第0个实际传输的下行信号关联的随机接入前导组索引号为0，与第3个实际传输的下行信号关联的随机接入前导组索引号为0或3。
另一种方式中，预先配置好实际传输的下行信号组合，例如关联到某个随机接入前导组的实际传输的下行信号索引号包括y1、y2……等。
例如t＝3，M5＝5，实际传输的下行信号索引号组合可以为[1或2，3或4,5]或[1/2,3,4/5]或[1,2/3,4/5]等。
或者，还可以将部分实际传输的下行信号与下一个随机接入资源(按照索引号的下一个)的随机接入前导组中。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来指示采用哪一种方式关联。
(3)t大于或等于M5，一个实际传输的下行信号可以关联多个随机接入前导组。
一种方式中，第i(i从0开始)个实际传输的下行信号与随机接入前导组k关联，k为随机接入前导组的索引号，其中k mod M5＝i，或者floor(k/M3)。
另一种方式中，预先配置好实际传输的下行信号组合，例如关联到某个随机接入前导组的实际传输的下行信号包括y1、y2……等。
例如t＝3，M5＝5，实际传输的下行信号索引号组合可以为[1,2,3,1,2]或[1,2,3,2,1]或[1,2,3,1,3]或[1,2,3,3,1]；或[1,2,3,2,3],或[1,2,3,3,2]。
又一种方式中，可以将部分随机接入前导组释放。例如，将索引号大于t的随机接入前导组释放，剩余的随机接入前导组与实际传输的下行信号一一对应。这里将部分随机接入前导组释放，可以为将部分随机接入前导组标识为不使用。
上述三种方式可以有不同的标识，网络设备通过在配置信息中携带关联方式的标识来 指示采用哪一种方式关联。
在上述实施例的基础上，一个小区中可以存在多个关联规则。
可选地，第一种方式是每一个实际传输的下行信号组有一个单独的映射方式，在每一个实际传输的下行信号组内的下行信号的关联方式相同。
协议可以预先制定多个映射规则，例如2个映射规则。实际传输的SS block group有N个，例如为4，则可以使用N bit进行指示，例如4比特，1010。第i个实际传输的SS block group可以使用第i个比特进行指示，i从0开始。
图4为本申请一实施例提供的网络设备结构示意图，如图4所示，该网络设备包括：确定模块401和发送模块402，其中：
确定模块401，用于确定配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
发送模块402，用于向终端发送所述配置信息。
本发明实施例和上述方法实施例基于同一构思，其带来的技术效果也相同，具体过程可参照方法实施例的描述，此处不再赘述。
可选地，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
可选地，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
可选地，确定模块401，还用于根据实际传输的下行信号数量，确定所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数。
可选地，确定模块401，还用于根据一个随机接入资源关联的实际传输的下行信号数量，确定所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数。
图5为本申请一实施例提供的终端结构示意图，如图5所示，该终端包括：接收模块501、确定模块502以及发送模块503。
接收模块501，用于接收网络设备发送的配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
确定模块502，用于根据所述配置信息，确定实际传输的下行信号关联的随机接入资源。
发送模块503，用于根据所述实际传输的下行信号关联的随机接入资源，向网络设备发送随机接入前导。
本发明实施例和上述方法实施例基于同一构思，其带来的技术效果也相同，具体过程 可参照方法实施例的描述，此处不再赘述。
需要说明的是，应理解以上装置的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，确定模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上上述装置可用于执行上述方法实施例提供的方法，具体实现方式和技术效果类似，这里不再赘述。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
图6为本申请另一实施例提供的网络设备结构示意图。
该网络设备包括射频信号收发及转换部分以及1302部分，该射频信号收发及转换部分又包括接收单元1301部分和发送单元1303部分(也可以统称为收发单元)。射频信号收发及转换部分主要用于射频信号的收发以及射频信号与基带信号的转换；1302部分主要用于基带处理，对网络设备进行控制等。
接收单元1301也可以称为接收器、接收机、接收电路等，发送单元1303也可以称为发送器、发射器、发射机、发射电路等。1302部分通常是网络设备的控制中心，通常可以称为处理单元，用于控制网络设备执行上述图1中关于网络设备所执行的步骤。具体可参见上述相关部分的描述。
1302部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器，处理器用于读取和执行存储器中的程序以实现基带处理功能以及对网络设备的控制。若存在多个单板，各个单板之间可以互联以增加处理能力。作为一中可选的实施方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器，或者是多个单板同时共用一个或多个处理器。
作为另一种可选的实施方式，随着片上系统(system-on-chip，SoC)技术的发展，可以将1302部分和1301部分的全部或者部分功能由SoC技术实现，例如由一颗基站功能芯片实现，该基站功能芯片集成了处理器、存储器、天线接口等器件，网络设备相关功能的程序存储在存储器中，由处理器执行程序以实现基站的相关功能。可选的，该网络设备功能芯片也能够读取该芯片外部的存储器以实现基站的相关功能。
可选的，当上述实施例的随机接入方法中的部分或全部通过软件实现时，上述终端或 网络设备也可以只包括处理器。用于存储程序的存储器位于装置之外，处理器通过电路/电线与存储器连接，用于读取并执行存储器中存储的程序。
处理器可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。
处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。
图7为本申请一实施例提供的一种简化的终端设备结构示意图。便于理解和图示方便，图7中，终端设备以手机作为例子。
如图7所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图7中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的接收单元和发送单元(也可以统称为收发单元)，将具有处理功能的处理器视为终端设备的处理单元。如图7所示，终端设备包括接收单元1201、处理单元1202和发送单元1203。接收单元1201也可以称为接收器、接收机、接收电路等，发送单元1203也可以称为发送器、发射器、发射机、发射电路等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。
本申请实施例还提供了一种计算机存储介质，存储有计算机程序，该计算机程序用于执行上述实施例提供的随机接入方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述实施例提供的随机接入方法。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、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。
本申请是参照根据本申请实施例的方法、设备(系统)、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。

Claims (43)

  1. 一种随机接入方法，其特征在于，包括：
    网络设备确定配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
    网络设备向终端发送所述配置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
  3. 根据权利要求1或2所述的方法，其特征在于，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据实际传输的下行信号数量，确定所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据在一个随机接入资源上传输的随机接入前导数量，确定所述配置信息中一个随机接入资源上传输的基于竞争的随机接入前导数量的索引所占比特数。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据一个随机接入资源关联的实际传输的下行信号数量，确定所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，一个下行信号关联的随机接入前导索引为非连续或者连续的随机接入前导索引。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
    一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
  9. 一种随机接入方法，其特征在于，包括：
    终端接收网络设备发送的配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
    所述终端根据所述配置信息，确定实际传输的下行信号关联的随机接入资源；
    所述终端根据所述实际传输的下行信号关联的随机接入资源，向网络设备发送随机接 入前导。
  10. 根据权利要求9所述的方法，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
  11. 根据权利要求9或10所述的方法，其特征在于，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
  12. 根据权利要求11所述的方法，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数，根据实际传输的下行信号数量确定。
  13. 根据权利要求9-12任一项所述的方法，其特征在于，所述配置信息中一个随机接入资源上传输的基于竞争的随机接入前导数量的索引所占比特数，根据在一个随机接入资源上传输的随机接入前导数量确定。
  14. 根据权利要求9-13任一项所述的方法，其特征在于，所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数，根据一个随机接入资源关联的实际传输的下行信号数量确定。
  15. 根据权利要求9-14任一项所述的方法，其特征在于，一个下行信号关联的随机接入前导索引为非连续的随机接入前导索引。
  16. 根据权利要求9-15任一项所述的方法，其特征在于，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
    一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
  17. 一种网络设备，其特征在于，包括：
    确定模块，用于确定配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
    发送模块，用于向终端发送所述配置信息。
  18. 根据权利要求17所述的网络设备，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
  19. 根据权利要求17或18所述的网络设备，其特征在于，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
  20. 根据权利要求19所述的网络设备，其特征在于，所述确定模块，还用于根据实际传输的下行信号数量，确定所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数。
  21. 根据权利要求17-20任一项所述的网络设备，其特征在于，所述确定模块，还用于根据一个随机接入资源关联的实际传输的下行信号数量，确定所述配置信息中一个下行 信号关联的随机接入前导数量的索引所占比特数。
  22. 根据权利要求17-21任一项所述的网络设备，其特征在于，一个下行信号关联的随机接入前导索引为非连续或者连续的随机接入前导索引。
  23. 根据权利要求17-22任一项所述的网络设备，其特征在于，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
    一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
  24. 一种终端，其特征在于，包括：
    接收模块，用于接收网络设备发送的配置信息，所述配置信息用于指示下述至少一种：在一个随机接入资源上传输的随机接入前导数量、在一个随机接入资源上传输的基于竞争的随机接入前导数量、在一个随机接入资源上传输的基于非竞争的随机接入前导数量、一个下行信号关联的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个下行信号关联的基于竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；
    确定模块，用于根据所述配置信息，确定实际传输的下行信号关联的随机接入资源；
    发送模块，用于根据所述实际传输的下行信号关联的随机接入资源，向网络设备发送随机接入前导。
  25. 根据权利要求24所述的终端，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量根据实际传输的下行信号和/或实际传输的下行信号组确定。
  26. 根据权利要求24或25所述的终端，其特征在于，所述配置信息指示一个随机接入资源关联的实际传输的下行信号数量时，所述配置信息包括：一个随机接入资源关联的实际传输的下行信号数量的索引。
  27. 根据权利要求26所述的终端，其特征在于，所述一个随机接入资源关联的实际传输的下行信号数量的索引所占比特数，根据实际传输的下行信号数量确定。
  28. 根据权利要求24-27任一项所述的终端，其特征在于，所述配置信息中一个随机接入资源上传输的基于竞争的随机接入前导数量的索引所占比特数，根据在一个随机接入资源上传输的随机接入前导数量确定。
  29. 根据权利要求24-28任一项所述的终端，其特征在于，所述配置信息中一个下行信号关联的随机接入前导数量的索引所占比特数，根据一个随机接入资源关联的实际传输的下行信号数量确定。
  30. 根据权利要求24-29任一项所述的终端，其特征在于，一个下行信号关联的随机接入前导索引为非连续的随机接入前导索引。
  31. 根据权利要求24-30任一项所述的终端，其特征在于，所述配置信息具体用于指示：一个随机接入资源上传输的随机接入前导数量、一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量；或者，
    一个下行信号关联的基于非竞争的随机接入前导数量、一个随机接入资源关联的实际传输的下行信号数量。
  32. 一种随机接入装置，其特征在于，用于执行如权利要求1至8任一项所述的方法。
  33. 一种随机接入装置，其特征在于，用于执行如权利要求9至16任一项所述的方法。
  34. 一种随机接入装置，其特征在于，包括：存储器和处理器；所述处理器被配置为支持所述装置执行如权利要求1至8任一项所述的方法的功能，所述存储器用于保存所述装置必要的程序和数据。
  35. 一种随机接入装置，其特征在于，包括：存储器和处理器；所述处理器被配置为支持所述装置执行如权利要求9至16任一项所述的方法的功能，所述存储器用于保存所述装置必要的程序和数据。
  36. 一种用于终端设备随机接入的装置，包括存储器和处理器，所述存储器中存储有可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如权利要求1至8中任一项所述的方法。
  37. 一种用于终端设备随机接入的装置，包括存储器和处理器，所述存储器中存储有可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如权利要求9至16中任一项所述的方法。
  38. 一种用于终端设备随机接入的装置，其特征在于，包括处理器，所述处理器用于与存储器耦合，并读取存储器中的指令，并根据所述指令实现如权利要求1至8中任一项所述的方法。
  39. 根据权利要求38所述的装置，其特征在于，所述存储器设置在所述处理器中，或所述存储器与所述处理器独立设置。
  40. 一种用于终端设备随机接入的装置，其特征在于，包括处理器，所述处理器用于与存储器耦合，并读取存储器中的指令，并根据所述指令实现如权利要求9至16中任一项所述的方法。
  41. 根据权利要求40所述的装置，其特征在于，所述存储器设置在所述处理器中，或所述存储器与所述处理器独立设置。
  42. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1至8、9至16中任一项所述的方法。
  43. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得所述计算机执行如权利要求1至8、9至16任一项所述的方法。
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