WO2018039932A1 - 一种随机接入方法、装置及系统 - Google Patents

一种随机接入方法、装置及系统 Download PDF

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Publication number
WO2018039932A1
WO2018039932A1 PCT/CN2016/097389 CN2016097389W WO2018039932A1 WO 2018039932 A1 WO2018039932 A1 WO 2018039932A1 CN 2016097389 W CN2016097389 W CN 2016097389W WO 2018039932 A1 WO2018039932 A1 WO 2018039932A1
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WIPO (PCT)
Prior art keywords
terminal
access device
signal
configuration
strongest
Prior art date
Application number
PCT/CN2016/097389
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English (en)
French (fr)
Inventor
贾晓倩
罗海燕
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 EP16914499.5A priority Critical patent/EP3477984B1/en
Priority to CN201680088729.6A priority patent/CN109644348B/zh
Priority to PCT/CN2016/097389 priority patent/WO2018039932A1/zh
Publication of WO2018039932A1 publication Critical patent/WO2018039932A1/zh
Priority to US16/287,171 priority patent/US20190200397A1/en

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the field of communications, and in particular, to a random access method, apparatus, and system.
  • the new network has high capacity and performance, and the terminal accesses the high-frequency network to provide users with better service.
  • the fading intensity is proportional to the frequency
  • the high frequency signal is easy to fade
  • the diffractive power is not as good as the lower frequency signal, which results in higher frequency of the high frequency network and smaller coverage.
  • Beamforming technology is used to increase the coverage of high-frequency networks due to the concentration of signal energy, so that terminals located at the edge of the high-frequency network can access the high-frequency network to enjoy high-quality network services.
  • the scheme of expanding the coverage of the high-frequency network by means of beamforming is as follows: the terminal preferentially accesses the high-frequency network randomly, and establishes radio resource control (English name: Radio Resource Control, RRC) connection with the access device of the high-frequency network. Then, the channel detection signal (Sounding Reference Signal, SRS) is sent to the access device of the high-frequency network, and the access device estimates the optimal beam between the terminal and the access device according to the symmetry of the uplink and downlink channels. Then, the terminal and the access device perform data transmission in a beamforming manner.
  • radio resource control English name: Radio Resource Control, RRC
  • SRS Sounding Reference Signal
  • the process of randomly accessing the high-frequency network by the terminal may be that the terminal needs to establish a connection with the access device first, and then access the beam (beam) after the interaction, so that the terminal access beam is not timely, thereby causing the terminal to access the high-frequency network.
  • the success rate is low.
  • the embodiment of the invention provides a random access method, device and system, which realizes that the terminal accesses the beam in time to improve the success rate of the terminal accessing the network.
  • a random access method which specifically includes: receiving, by a terminal, a plurality of signals on a plurality of beams generated by a first access device by a beamforming manner, and determining a beam having the strongest signal among the plurality of beams; and Generating a preamble of the beam with the strongest signal according to the configuration information; the terminal transmitting the generated preamble to the first access device.
  • the terminal before accessing the first access device, that is, in the initial access phase of the terminal, the terminal has determined the beam with the strongest signal as the beam accessing the first access device, and to the first access device.
  • the preamble signal of the beam with the strongest signal is sent, and the first access device can identify the beam with the strongest signal determined by the terminal according to the received preamble signal, and establish a connection with the terminal through the beam to complete the random access of the terminal.
  • the terminal accesses the beam of the first access device in time, which improves the success rate of the terminal accessing the first access device.
  • the configuration information may include a beam configuration of a beam with the strongest signal; or the configuration information may include a cell configuration and an identifier of a beam with the strongest signal; or the configuration information may include a beam configuration and a signal of the beam with the strongest signal. The identification of the strongest beam.
  • the beam configuration of the beam with the strongest signal includes at least one preamble sequence code allocated by the first access device for the strongest beam of the signal and time-frequency resource information of the transmit preamble signal.
  • the time-frequency resource information is used to indicate the time-frequency resource occupied when transmitting the preamble signal.
  • the cell configuration includes at least one preamble sequence code allocated by the network provided by the network for the first access device and time-frequency resource information of the transmit preamble signal.
  • the identification of the beam is used to indicate a unique beam.
  • the preamble signal of one beam can uniquely determine the beam.
  • the preamble sequence code when generating a preamble signal of one beam, may be competitively selected as a preamble signal in a beam configuration of the beam, and the preamble signal is sent by competing for selecting a time frequency resource in a beam configuration of the beam.
  • the receiver can uniquely determine the beam by using the content of the preamble signal and the time-frequency resource occupied by the transmitting preamble signal.
  • the identifier of the beam when generating a preamble signal of a beam, may be carried in the preamble signal of the beam, and the receiver may be carried in the preamble signal.
  • the beam identification uniquely identifies the beam.
  • the solution of the present application realizes that the terminal accesses the high-frequency network in time, and improves the success rate of the terminal accessing the high-frequency network.
  • the configuration information may include a beam configuration of a beam with the strongest signal, and the terminal receives multiple multiple beams on the first access device.
  • the signal may be specifically implemented as follows: the terminal receives the broadcast signal on the beam with the strongest signal; the broadcast signal is used for the beam beam configuration with the strongest broadcast signal.
  • the method may further include receiving, by the terminal, a beam configuration of a beam with the strongest signal from the second access device. That is, the beam configuration of the beam in which the first access device broadcasts the strongest signal is assisted by the second access device.
  • the terminal is in the coverage of the network provided by the second access device.
  • the second access device may directly obtain the beam configuration of each beam configured by the first access device to broadcast;
  • the network provided by the second access device and the network provided by the first access device are not co-located, and the second access device can interact with the first access device through the X2 interface information to obtain the beam configuration of each configured beam. broadcast.
  • the terminal when the configuration information is a beam configuration of a beam with the strongest signal, the terminal generates a preamble of the beam with the strongest signal according to the configuration information.
  • the signal may be implemented by: the terminal first acquiring the preamble sequence code in the beam configuration of the beam with the strongest signal and the time-frequency resource information of the random access preamble sequence; and then competing to select a preamble sequence code as the random access preamble sequence; The competition acquires a time-frequency resource as a random access time-frequency resource, and sends the selected random access preamble sequence to the first access device as a preamble signal on the random access time-frequency resource that is obtained by the competition.
  • each beam beam configuration can be searched according to the content of the preamble signal and the occupied time-frequency resource, so that the beam with the strongest signal determined by the terminal can be uniquely determined, that is, Only The determination of one is except that the terminal selects a beam that accesses the network provided by the first access device.
  • the receiving, by the terminal, the multiple signals on the multiple beams of the first access device may also be implemented as: receiving a signal at the terminal Based on the broadcast signal on the strongest beam, the terminal receives the synchronization signal on the beam with the strongest signal.
  • the terminal may determine a beam with the strongest one of the broadcast signal or the synchronization signal as multiple beams. The beam with the strongest signal.
  • the configuration information may include a cell configuration and an identifier of a beam with the strongest signal, or the configuration information includes a beam with the strongest signal. Beam configuration and identification of the beam with the strongest signal.
  • the terminal receives the multiple signals on the multiple beams of the first access device, which may be implemented as: the synchronization signal or the broadcast signal on the beam with the strongest receiving signal of the terminal; the synchronization signal or the broadcast signal carried on the beam with the strongest signal The identification of the strongest beam.
  • the terminal if the configuration information includes the cell configuration and the identifier of the beam with the strongest signal, or the configuration information includes the beam with the strongest signal.
  • the terminal When the beam configuration and the signal with the strongest signal are identified, the terminal generates the preamble signal of the beam with the strongest signal according to the configuration information, which may be implemented as: the terminal selects a preamble in the beam configuration of the cell configuration or the beam with the strongest signal.
  • the sequence code is used as a preamble signal, and competing for selecting a time-frequency resource for transmitting the preamble signal, transmitting a preamble signal on the time-frequency resource that is competing for selection, and carrying the identifier of the beam with the strongest signal determined by the terminal in the preamble signal.
  • the first access device can quickly and accurately identify the beam according to the beam identifier carried in the preamble signal, which ensures the accurate communication between the terminal and the access device through the beamforming method. degree.
  • the identifier of the beam may be in multiple manners.
  • the broadcast signal includes an identifier of the beam, that is, an identifier of the explicit carried beam.
  • the first access device The downlink synchronization signal (Primary Synchronization Signal, PSS)/Secondary Synchronization Signal (SSS) uniquely corresponds to the beam, and the synchronization signal implicitly carries the identification identifier of the beam.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the physical cell identifier (Physical Cell Identifier, PCI) of the beam beam is different, different beams can be identified by the PSS/SSS unique corresponding PCI. If the PCI of the beam is the same, the extended PSS/SSS can be similarly used to identify different beams.
  • PCI Physical Cell Identifier
  • the configuration information includes the cell configuration and the identifier of the beam with the strongest signal, or the configuration information includes the beam with the strongest signal.
  • the beam configuration of the beam that the terminal acquires the cell configuration or the signal with the strongest signal may be implemented as: receiving the beam configuration of the cell configuration or the beam with the strongest signal from the second access device, or The broadcast signal on the beam with the strongest signal is used to broadcast the cell configuration or the beam configuration of the beam with the strongest signal.
  • the present invention provides another random access method, which specifically includes: a first access device sends multiple signals to a terminal on multiple beams generated by a beamforming manner; and then the first access device receives the terminal to send The preamble signal of the beam with the strongest signal; then the first access device identifies the RRC connection between the beam establishment of the network accessed by the terminal accessing the network provided by the first access device and the terminal according to the received preamble signal.
  • the first access device sends a signal to the terminal on multiple beams generated by the beamforming manner to expand the network coverage provided by the first access device, and the terminal can be accessed.
  • the phase determines the beam with the strongest signal according to the multiple signals on the multiple beams, and sends the preamble signal of the strongest beam to the terminal, and the first access device can accurately identify the terminal to select the first connection according to the received preamble signal.
  • the terminal accesses the beam in time, which improves the success rate of the terminal to access the network provided by the first access device.
  • the preamble signal of one beam can uniquely determine the beam.
  • the beam can be uniquely determined according to the content of the preamble signal and the time-frequency resource occupied by the preamble signal.
  • the first access device may uniquely determine the beam by using a beam identifier carried in the preamble signal.
  • the first access device sends multiple signals to the terminal on multiple beams, which may be implemented as follows: the first access device sends a broadcast to the terminal on multiple beams. Signal; the broadcast signal is used to broadcast the beam configuration of the first access device.
  • the first access device according to the preamble signal, identifies the RRC connection between the beam establishment of the terminal accessing the first access device and the terminal, and the implementation is as follows: the first access device is configured according to the preamble signal and the first access The beam configuration of the device identifies that the terminal accesses the beam of the network provided by the first access device to establish an RRC connection.
  • the beam configuration of an access device is a preamble sequence code allocated by the access device for each beam and time-frequency resource information of the preamble signal.
  • the first access device identifies the terminal accessing the first access according to the beam configuration of the preamble signal and the strongest beam of the signal.
  • the beam of the network provided by the device may be implemented as follows: the first access device identifies that the terminal accesses the beam of the network provided by the first access device into a beam configuration, and the preamble signal received by the first access device and the occupied time thereof The beam corresponding to the frequency resource.
  • the first access device may pass the second The access device sends the beam configuration of the first access device to the terminal instead of transmitting the beam configuration of the first access device to the terminal through the broadcast signal.
  • the first access device sends the beam configuration of the first access device to the terminal by using the second access device, which may be implemented.
  • the first access device sends the beam configuration of the first access device to the second access device, and the second access device forwards the beam configuration of the first access device to the terminal. That is, by the assistance of the second access device, the first connection is sent to the terminal. Beam configuration into the device.
  • the first access device sends multiple signals to the terminal on multiple beams, which may be implemented as the first access.
  • the device sends a broadcast signal to the terminal on the multiple beams.
  • the broadcast signal is used to broadcast the beam configuration of the first access device.
  • the first access device sends the multiple signals to the terminal on multiple beams.
  • the access device transmits a synchronization signal to the terminal over multiple beams.
  • the first access device sends both the synchronization signal to the terminal and the broadcast signal to the terminal on the plurality of beams, and the broadcast signal is used to broadcast the beam configuration of each beam.
  • the terminal may determine the strongest signal according to any one of the synchronization signal or the broadcast signal on the multiple beams. Beam.
  • the first access device sends multiple signals to the terminal on multiple beams, which may be implemented as: The device sends a synchronization signal to the terminal on multiple beams, and the first access device broadcasts the beam configuration of the first access device to the terminal through the second access device.
  • the first access device sends multiple signals to the terminal on multiple beams, which may be implemented as: The device transmits a synchronization signal or a broadcast signal to the terminal on multiple beams; the synchronization signal or the broadcast signal carries the identity of each beam.
  • the terminal can obtain the identifier of the beam with the strongest determined signal, and the carrier is provided in the preamble signal and provided to the first access device for the first access device to identify the terminal.
  • the beam with the strongest signal is determined.
  • the preamble signal carries the identifier of the beam with the strongest signal determined by the terminal.
  • the first access device when the current pilot signal carries the identifier of the beam with the strongest signal determined by the terminal, the first access device identifies the terminal accessing
  • the beam of the network provided by an access device is the former The beam indicated by the identification of the beam carried in the pilot signal.
  • the method further includes: the first access device sends the cell configuration or the first connection to the terminal by using the second access device The beam configuration of the incoming device; or the broadcast signal is used for the broadcast cell configuration or the beam configuration of the first access device.
  • the method further includes: receiving, by the first access device, the third access device that is sent by the third access device The beam configuration, the first access device broadcasts a beam configuration allocated by the third access device.
  • the embodiment of the present invention provides a terminal, which can implement the functions performed by the terminal in the foregoing method example, and the function can be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the terminal includes a processor and a transceiver, and the processor is configured to support the terminal to perform a corresponding function in the foregoing method.
  • the transceiver is used to support communication between the terminal and other network elements.
  • the terminal can also include a memory for coupling with the processor that retains the program instructions and data necessary for the terminal.
  • the embodiment of the present invention provides a first access device, where the first access device can implement the function performed by the first access device in the foregoing method, and the function can be implemented by using hardware.
  • the corresponding software implementation is performed by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the first access device includes a processor and a transceiver, and the processor is configured to support the first access device to perform a corresponding function in the foregoing method.
  • the transceiver is configured to support communication between the first access device and other network elements.
  • the first access device can also include a memory for coupling with the processor that retains the program instructions and data necessary for the device.
  • an embodiment of the present invention provides a random access system, where the system includes at least one terminal according to any one of the foregoing aspects or any possible implementation manner, and at least one of the foregoing aspects or any one of the possible The first access device described in the implementation manner.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the terminal, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the first access device, which includes a program designed to perform the above aspects.
  • the solution provided by the foregoing third to seventh aspects is used to implement the random access method provided by the foregoing first aspect or the second aspect, and thus may achieve the same beneficial effects as the first aspect or the second aspect, and no longer Repeat them.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a terminal 20 according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a first access device 30 according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a scenario of a random access method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a random access method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another terminal 20 according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of still another terminal 20 according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another first access device 30 according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of still another first access device 30 according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a random access system according to an embodiment of the present invention.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the access device sends a synchronization signal in a conventional manner for the terminal to discover the network for access, and communicates with the terminal in a beamforming manner only when the terminal performs data transmission, thereby expanding the system capacity, but at the terminal.
  • the current random access process does not access the beam generated by the beamforming in time, resulting in a low success rate of the terminal accessing the high-frequency network.
  • the basic principle of the present invention is that the access device sends multiple signals to the terminal on multiple beams generated by beamforming, and the terminal determines the beam with the strongest signal according to the strength of the signals, and according to the beam with the strongest signal.
  • the preamble signal is sent to the access device, so that the access device can uniquely and accurately identify the beam with the strongest signal determined by the terminal according to the received preamble signal. Since the beam with the strongest signal is determined before the access and the beam is accessed in time, the success rate of the terminal randomly accessing the network is greatly improved.
  • the random access method provided by the embodiment of the present invention is applied to the network architecture shown in FIG. 1.
  • the network architecture of FIG. 1 at least one access device and at least one terminal are included.
  • the number of access devices and terminals in FIG. 1 is only an example, and is not a limitation on the number of access devices and terminals in the network architecture.
  • At least one access device in FIG. The device is configured to provide at least one network, and the terminal randomly accesses the network to implement the service of the terminal.
  • the access device in FIG. 1 may be a base station, or another network element having an access function, which is not specifically limited in this embodiment of the present invention.
  • the terminal may be referred to as a user equipment (English name: User Equipment, UE), a mobile station (English full name: Mobile Station, MS), a mobile terminal (English full name: Mobile Terminal), and the like.
  • the terminal can communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example
  • RAN Radio Access Network
  • the terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • the random access method provided by the embodiment of the present invention may be performed by the terminal or the first access device provided by the embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a terminal 20 related to various embodiments of the present invention.
  • the terminal 20 may be part or all of any terminal in FIG.
  • the terminal 20 can include a processor 201, a memory 202, and a transceiver 203.
  • the memory 202 can be a volatile memory (English full name: volatile memory), such as a random access memory (English name: random-access memory, RAM); or a non-volatile memory (English name: non-volatile memory), For example, read-only memory (English full name: read-only memory, ROM), flash memory (English full name: flash memory), hard disk (English full name: hard disk drive, HDD) or solid state hard disk (English full name: solid-state drive, SSD); or a combination of the above types of memory for storing related applications, and configuration files, that can implement the method of the present invention.
  • volatile memory such as a random access memory (English name: random-access memory, RAM)
  • non-volatile memory English name: non-volatile memory
  • read-only memory English full name: read-only memory, ROM
  • flash memory English full name: flash memory
  • hard disk English full name: hard disk drive, HDD
  • solid state hard disk English full name: solid-state drive, SSD
  • the processor 201 is a control center of the terminal 20, and may be a central processing unit (English name: central processing unit, CPU), or may be a specific integrated circuit (English name: Application Specific Integrated Circuit, ASIC), or One or more integrated circuits configured to implement embodiments of the present invention, such as one or more microprocessors (digital singnal processors, DSP), or one or more field programmable gate arrays (English full name: Field Programmable Gate Array, FPGA).
  • the processor 201 can perform various functions of the terminal 20 by running or executing software programs and/or modules stored in the memory 202, as well as invoking data stored in the memory 202.
  • the transceiver 203 can be a transceiver antenna of the terminal 20.
  • FIG. 3 is a schematic structural diagram of a first access device 30 related to the embodiments of the present invention.
  • the first access device 30 may be any access device in FIG. 1 (first connection) Part or all of the device.
  • the first access device 30 may include: a processor 301, a memory 302, and a transceiver 303.
  • the components of the first access device 30 are specifically described below with reference to FIG. 3:
  • the memory 302 may be a volatile memory such as a RAM; or a non-volatile memory such as a ROM, a flash memory, an HDD or an SSD; or a combination of the above types of memories for storing related applications and configurations capable of implementing the method of the present invention. file.
  • the processor 301 is a control center of the first access device 30, and may be a CPU, an ASIC, or one or more integrated circuits configured to implement the embodiments of the present invention, such as one or more DSPs. Or, one or more FPGAs.
  • the processor 301 can perform various functions of the first access device 30 by running or executing software programs and/or modules stored in the memory 302, as well as invoking data stored in the memory 302.
  • the transceiver 303 can be a transceiver antenna of the first access device 30.
  • the embodiment of the present invention provides a random access method, which is applied to the scenario shown in FIG.
  • the terminal is located at the edge of the coverage area (shown by the solid line in FIG. 4) of the network provided by the first access device, and the terminal is located at the first access device.
  • the terminal is located in the coverage area of the network provided by the second access device (shown by the solid line in FIG. 4), which is provided by the embodiment of the present invention.
  • a random access method enables the terminal to access the beam in time and accurately, and then access the network provided by the first access device in time and accurately.
  • the embodiment of the present invention provides a random access method according to an embodiment of the present invention by using a process in which a terminal interacts with a first access device or a first access device and a second access device.
  • a random access method which may include:
  • the first access device sends multiple signals to the terminal on multiple beams.
  • the multiple beams are generated by the beamforming method, and are used to expand the coverage of the network provided by the first access device.
  • the multiple signals sent by the first access device to the terminal on multiple beams may include a synchronization signal, or a broadcast signal, or a synchronization signal and a broadcast signal.
  • the first access device may also send the beam configuration of the first access device to the terminal.
  • the beam configuration of the first access device is used by the terminal to generate a preamble signal sent to the first access device.
  • the beam configuration of the first access device is pre-configured by the first access device, and the beam configuration of the first access device includes at least one preamble sequence code and a preamble signal allocated by the first access device for each beam. Time-frequency resource indication information.
  • the beam configuration of the first access device may be broadcast by using a broadcast signal, or the beam configuration of the first access device may be sent to the terminal by using the second access device.
  • the terminal is in the coverage of the network provided by the second access device.
  • the second access device may directly obtain the beam configuration of each beam configured by the first access device to broadcast;
  • the network provided by the second access device and the network provided by the first access device are not co-located, and the second access device can interact with the first access device through the X2 interface information to obtain the beam configuration of each configured beam. broadcast.
  • the first access device generates 8 beams in a beamforming manner; for the 8 beams, a beam configuration of the first access device configured by the first access device
  • the specific content includes: beam0 configuration preamble sequence code (preamble) 0 to 7, beam1 configuration preamble8 to 15, ..., beam7 configuration preamble 56 to 63; allocated time-frequency resource information indication: allocate time-frequency resources 0 to 2 for beam0 , allocate time-frequency resources 3 to 5, ... for beam1, and allocate time-frequency resources 21 to 23 for beam7.
  • the beam configuration of the first access device can be stored and transmitted in the form of Table 1.
  • Beam number Configured preamble Allocated time-frequency resources 0 0 to 7 0 to 2 1 8 ⁇ 15 3 ⁇ 5 2 16 ⁇ 23 6-8 3 24 ⁇ 31 9 to 11 4 32 ⁇ 39 12 ⁇ 14 5 40 ⁇ 47 15 ⁇ 17 6 48 ⁇ 55 18 ⁇ 20 7 56 ⁇ 63 21 ⁇ 23
  • Table 1 only illustrates the beam configuration of the first access device by way of example, and is not specifically limited to the form and content of the beam configuration of the first access device. In practical applications, the content and format of the beam configuration of the first access device may be set according to actual needs.
  • the first access device when the first access device sends multiple signals to the terminal on multiple beams, the first access device may carry a respective beam identifier in each beam.
  • the beam identifier can be used to uniquely indicate a beam.
  • the beam identifiers in the embodiments of the present invention may include, but are not limited to, the following two forms:
  • the first form explicit beam identification.
  • the explicit beam identifier is used to explicitly indicate the identification information of the beam.
  • the explicit beam identifier can be directly carried in the beam, and the receiver can directly extract.
  • each of the signals transmitted on each beam carries each of the signals
  • the respective identification of the beams, the form of providing the beam identification is the explicit beam identification described in the first form above.
  • the implicit beam identifier is used to determine the indicator information of the beam identifier, and the beam identifier can be calculated by using the implicit beam identifier.
  • the PSS/SSS may implicitly notify the identifier of each beam of the terminal.
  • the receiver can uniquely determine a beam according to the PSS/SSS, that is, the identifier of the beam is obtained.
  • the receiver can identify different beams through the unique PCI of the PSS/SSS. If the PCI of the beam is the same, the receiver can similarly use the extended PSS/SSS to identify different beams.
  • PSS is a sequence of propagation in the primary synchronization channel (English: primary synchronous channel, P-SCH), and there are three possibilities; SSS is a secondary synchronization channel (English full name: Secondary synchronous channel, S-SCH). Sequence, a total of 168 possibilities; the combination of the sequence numbers of the two sequences, the ID of the beam can be obtained.
  • the content that the first access device sends the multiple signals to the terminal on multiple beams may be implemented in multiple manners, and may include, but is not limited to, the following five solutions:
  • the first access device sends a broadcast signal to the terminal on the plurality of beams, and the broadcast signal is used to broadcast the beam configuration of the first access device.
  • the form and location of the beam configuration of the first access device in the broadcast signal may be set according to actual requirements, which is not specifically limited in this embodiment of the present invention.
  • the first access device sends a synchronization signal and a broadcast signal to the terminal on multiple beams. No.
  • the broadcast signal is used to broadcast the beam configuration of the first access device.
  • the first access device sends a synchronization signal to the terminal on multiple beams, and the first access device sends the beam configuration of the first access device to the terminal through the second access device.
  • the first access device sends a broadcast signal to the terminal on multiple beams, and the broadcast signal sent on each beam carries a respective beam identifier, and the broadcast signal is used to broadcast the beam configuration of the first access device.
  • the first access device sends a synchronization signal to the terminal on multiple beams, and the synchronization signal sent on each beam carries a respective beam identifier.
  • the first access device may further send a beam configuration or a cell configuration of the first access device to the terminal.
  • the cell is configured to allocate at least one preamble sequence code and time-frequency resource information of the preamble signal to the network provided by the first access device.
  • the time-frequency resource information is used to indicate at least one time-frequency resource.
  • the first access device may further send the beam configuration or the cell configuration of the first access device to the terminal, where the first access device directly sends the beam of the first access device to the terminal.
  • the configuration or the cell configuration, or the first access device sends the beam configuration or the cell configuration of the first access device to the terminal by using the second access device.
  • the cell configuration may also be pre-configured in the terminal, and in the scenario 5, the cell configuration may not be sent to the terminal.
  • the terminal receives multiple signals on multiple beams of the first access device.
  • the signal received by the terminal in S502 is the first access in S501.
  • the signal sent by the device, for the content of multiple signals on multiple beams, has been described in detail in S501, and details are not described herein.
  • the terminal determines a beam with the strongest signal among the plurality of beams.
  • the terminal generates a preamble signal of a beam with the strongest signal according to the configuration information.
  • the preamble signal of one beam can uniquely determine the beam.
  • the preamble sequence code when generating a preamble signal of one beam, may be competitively selected as a preamble signal in a beam configuration of the beam, and the preamble signal is sent by competing for selecting a time frequency resource in a beam configuration of the beam.
  • the receiving end can uniquely determine the beam by using the content of the preamble signal and the time-frequency resource occupied by the transmitting preamble signal.
  • the identifier of the beam when generating a preamble signal of a beam, may be carried in the preamble signal of the beam, and the receiver may determine the beam by using a beam identifier carried in the preamble signal.
  • the configuration information may include a beam configuration of a beam with the strongest signal; or, the configuration information may include a cell configuration and an identifier of a beam with the strongest signal; or, the configuration information includes a beam configuration of a beam with the strongest signal and The identification of the beam with the strongest signal.
  • the specific content of the configuration information depends on the content that the first access device sends to the terminal.
  • the configuration information includes a beam configuration of the beam with the strongest signal.
  • the configuration information includes the beam configuration of the beam with the strongest signal and the identifier of the beam with the strongest signal.
  • the configuration information includes the cell configuration and the identifier of the beam with the strongest signal.
  • the scheme for generating, by the terminal in S504, the preamble signal of the beam with the strongest signal according to the configuration information includes, but is not limited to, the following two parties. case.
  • the first scheme and configuration information includes a beam configuration of a beam with the strongest signal.
  • the process of the terminal performing S504 may specifically include:
  • the terminal competes to select a preamble sequence code as a preamble signal in at least one preamble sequence code included in a beam configuration of a beam with the strongest signal.
  • the terminal determines that beam3 is the beam with the strongest signal, that is, determines that the best beam for accessing the first access device is beam3, then the terminal is executing.
  • the preamble sequence codes in the beam configuration of the beam3 determined in the beam configuration of the first access device shown in Table 1 are obtained as preambles 24 to 31; then, a preamble is competitively selected in the preambles 24 to 31 (assuming that the preamble 26 is selected) As a preamble.
  • the second solution, the configuration information includes a cell configuration.
  • the process of the terminal performing S504 may specifically include:
  • the terminal competes to select a preamble sequence code as a preamble signal in at least one preamble sequence code included in the cell configuration.
  • the terminal sends a preamble signal of a beam with the strongest signal to the first access device.
  • the scheme in which the terminal sends the strongest preamble signal to the first access device in the S505 includes, but is not limited to, the following two schemes.
  • the configuration information does not include the identity of the beam with the strongest signal.
  • the solution that the terminal sends the preamble signal to the first access device may be implemented as:
  • the terminal selects a time-frequency resource in the at least one time-frequency resource indicated by the time-frequency resource indication information in the beam configuration of the beam with the strongest signal, and sends the generated preamble to the first access device on the selected time-frequency resource. signal.
  • the beam identification information allocated by the first access device is as shown in Table 1, and the time-frequency indicated by the time-frequency resource information included in the beam configuration of the beam3 by the terminal.
  • the competition acquires a time-frequency resource (assuming that the time-frequency resource 10 is acquired by the competition), and on the time-frequency resource 10, the preamble 26 is sent to the first access device.
  • the scheme for the terminal to send the preamble signal to the first access device may be implemented as:
  • the terminal competes to select one time-frequency resource in the at least one time-frequency resource indicated by the time-frequency resource indication information, and sends the generated preamble signal to the first access device on the selected time-frequency resource.
  • the configuration information includes the identifier of the beam with the strongest signal.
  • the solution that the terminal sends the preamble signal to the first access device may be implemented as:
  • the terminal selects a time-frequency resource in the at least one time-frequency resource indicated by the time-frequency resource indication information in the beam configuration of the beam with the strongest signal, and sends the generated preamble to the first access device on the selected time-frequency resource.
  • the signal, the preamble carries the identity of the beam with the strongest signal.
  • the solution that the terminal sends the preamble signal to the first access device may be implemented as:
  • the terminal selects a time-frequency resource in the at least one time-frequency resource indicated by the time-frequency resource indication information, and sends the generated preamble signal to the first access device on the selected time-frequency resource, where the pre-signal carries the signal.
  • the identification of the strongest beam is a time-frequency resource in the at least one time-frequency resource indicated by the time-frequency resource indication information, and sends the generated preamble signal to the first access device on the selected time-frequency resource, where the pre-signal carries the signal. The identification of the strongest beam.
  • the beam 3 with the strongest terminal identification signal is the best beam for accessing the network provided by the first access device, and obtains the beam ID in beam3.
  • the terminal performs S504
  • the terminal first competing for a preamble (assuming that the preamble 26 is selected) as the preamble in the preamble sequence preambles 24 to 31 in the beam configuration of the beam 3 shown in Table 1, and then shown in Table 1.
  • the time-frequency resource information in the beam configuration of the beam 3 indicates that the time-frequency resources 9 to 11 compete for acquiring a time-frequency resource (assuming that the time-frequency resource 10 is acquired by the competition), then the terminal is on the time-frequency resource 10 and is connected to the first
  • the inbound device sends the preamble26 and carries the ID3.
  • the first access device receives a preamble signal of a beam with the strongest signal sent by the terminal.
  • preamble signal received by the first access device in S506, that is, S505 The preamble signal sent by the terminal is not described here.
  • the first access device identifies that the terminal selects to access the RRC connection between the beam establishment of the network provided by the first access device and the terminal.
  • the preamble signal of one beam can uniquely determine the beam.
  • the content of the preamble signal and the preamble signal may be transmitted according to the beam configuration.
  • the occupied time-frequency resources uniquely determine the beam.
  • the first access device may uniquely determine the beam by using a beam identifier carried in the preamble signal.
  • the first access device determines, according to the preamble signal, the method for the terminal to access the beam of the network provided by the first access device according to the preamble signal.
  • the following two implementation manners may be included:
  • the first implementation manner corresponding to the scheme A in S505, the configuration information does not include the identifier of the beam with the strongest signal, and the preamble signal sent by the terminal does not carry the identifier of the beam with the strongest signal determined by the terminal, and the first access device performs S507.
  • the process specific may include:
  • the first access device first acquires the preamble signal sent by the received terminal and the time-frequency resource occupied by the terminal, and then searches for the beam configuration of the first access device, and determines that the terminal accesses the beam of the network provided by the first access device, In the beam configuration of the first access device, the preamble signal sent by the received terminal and the beam corresponding to the time-frequency resource occupied by the preamble signal.
  • the beam configuration of the first access device is as shown in Table 1. Assume that the first access device receives the preamble 26 sent by the terminal on the time-frequency resource 10 as the preamble 26, then the first access device lookup table The beam configuration of the first access device shown in FIG. 1 determines that the terminal accesses the beam of the first access device, and is the beam 3 corresponding to the preamble signal 26 and the time-frequency resource 10 occupied by the preamble signal.
  • the configuration information includes the identifier of the beam with the strongest signal, and the preamble signal sent by the terminal carries the identifier of the beam with the strongest signal determined by the terminal.
  • the process of the first access device performing S507 may specifically include:
  • the first access device identifies the beam that the terminal selects to access the network provided by the first access device, and is the beam indicated by the beam identifier included in the preamble signal received by the first access device.
  • the third access device may send the cell configuration or the third access device to the terminal by using the first access device. Beam configuration.
  • the method may further include:
  • the first receiving device receives the cell configuration sent by the third access device or the beam configuration of the third access device, and then broadcasts the cell configuration or the beam configuration of the third access device.
  • the beam with the strongest signal is determined as the beam for accessing the first access device. And transmitting, to the first access device, the preamble signal of the beam with the strongest determined signal, and the first access device may identify the beam with the strongest signal determined by the terminal according to the received preamble signal, and establish a connection with the terminal through the beam.
  • the terminal accesses the beam of the first access device in time, which improves the success rate of the terminal accessing the first access device.
  • each network element such as a terminal, a first access device, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiment of the present invention may perform the division of the function module on the terminal, the first access device, and the like according to the foregoing method.
  • each function module may be divided according to each function, or two or more functions may be integrated into one process.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present invention is schematic. For the division of only one logical function, there may be another way of dividing the actual implementation.
  • FIG. 6 is a schematic diagram showing a possible structure of the terminal 20 involved in the foregoing embodiment.
  • the terminal 20 includes: a receiving unit 601, a determining unit 602, and a generating unit 603. , sending unit 604.
  • the receiving unit 601 is configured to support the terminal 20 to perform the process S502 in FIG. 5
  • the determining unit 602 is configured to support the terminal 20 to perform the process S503 in FIG. 5
  • the generating unit 603 is configured to support the terminal 20 to execute the process S504 in FIG. 604 is used to support terminal 20 to perform process S505 in FIG.
  • All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • FIG. 7 shows a possible structural diagram of the terminal 20 involved in the above embodiment.
  • the terminal 20 may include a processing module 701 and a communication module 702.
  • the processing module 701 is configured to control and manage the actions of the terminal 20.
  • the processing module 701 is configured to support the terminal 20 to perform the processes S503, S504 in FIG. 5, and/or other processes for the techniques described herein.
  • the processing module 701 is further configured to support the terminal 20 to perform the processes S502 and S505 in FIG. 5 through the communication module 702.
  • Communication module 702 is used to support communication of terminal 20 with other network entities.
  • the terminal 20 may further include a storage module 703 for storing program codes and data of the terminal 20.
  • the processing module 701 may be the processor 201 in the physical structure of the terminal 20 shown in FIG. 2, and may be a processor or a controller, such as a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic. Device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 702 may be a transceiver in the physical structure of the terminal 20 shown in FIG. 2, or may be a transceiver circuit or a communication interface or the like.
  • the storage module 703 may be a memory in the physical structure of the terminal 20 shown in FIG. 2.
  • the terminal 20 involved in FIG. 7 of the embodiment of the present invention may be the terminal 20 shown in FIG.
  • FIG. 8 is a schematic diagram of a possible configuration of the first access device 30 involved in the foregoing embodiment, where the first access device 30 includes: a sending unit 801. , receiving unit 802, identifying unit 803.
  • the sending unit 801 is configured to support the first access device 30 to perform the process S501 in FIG. 5
  • the receiving unit 802 is configured to support the first access device 30 to perform the process S506 in FIG. 5
  • the identifying unit 803 is configured to support the first access.
  • the device 30 performs the process S507 in Fig. 5. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • FIG. 9 shows a possible structural diagram of the first access device 30 involved in the above embodiment.
  • the first access device 30 can include a processing module 901 and a communication module 902.
  • the processing module 901 is configured to perform control management on the action of the first access device 30.
  • the processing module 901 is configured to support the first access device 30 to perform the process S507 in FIG. 5, and/or for the techniques described herein. Other processes.
  • the processing module 901 is further configured to support the first access device 30 to perform the processes S501 and S506 in FIG. 5 through the communication module 902.
  • the communication module 902 is configured to support communication of the first access device 30 with other network entities.
  • the first access device 30 may further include a storage module 903 for storing program codes and data of the first access device 30.
  • the processing module 901 may be the processor 301 in the physical structure of the first access device 30 shown in FIG. 3, and may be a processor or a controller, such as a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or Other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 902 may be a transceiver in a physical structure of the first access device 30 shown in FIG. 3, or may be a transceiver circuit or a communication interface or the like.
  • the storage module 903 can be a memory in the physical structure of the first access device 30 shown in FIG. 2.
  • the processing module 901 is a processor
  • the communication module 902 is a transceiver
  • the storage module 903 is a memory
  • the first access device 30 involved in FIG. 9 of the embodiment of the present invention may It is the first access device 30 shown in FIG.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in RAM, flash memory, ROM, Erasable Programmable ROM (EPROM), and electrically erasable programmable read only memory (Electrically EPROM).
  • EEPROM electrically erasable programmable read only memory
  • registers hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the embodiment of the present invention provides a random access system 100.
  • the random access system 100 can include:
  • FIG. 10 only the architecture of the random access system 100 is schematically illustrated, and the number of the terminal 20 and the first access device 30 included in the random access system 100 is not limited.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本发明实施例提供一种随机接入方法、装置及系统，涉及通信领域，实现了终端及时接入beam，以提高终端接入网络的成功率。本发明实施例提供的方案包括：终端接收第一接入设备在多个波束上发送的多个信号，确定多个多数中信号最强的波束并生成信号最强的波束的前导信号，向第一接入设备发送信号最强的波束的前导信号，使得第一接入设备根据接收的前导信号识别终端选择接入的beam。本发明用于随机接入。

Description

一种随机接入方法、装置及系统 技术领域
本发明涉及通信领域，尤其涉及一种随机接入方法、装置及系统。
背景技术
随着通信技术的发展，频率资源需求量越来越大，由于频谱资源有限，未来新的网络极大可能会工作在高频点上。新的网络具有高的容量及性能，终端接入高频网络可以为用户提供更优质的服务。
从信道衰落原理可知，衰落强度与频率成正比，高频信号容易衰落，绕射能力不如频率较低的信号，这就造成高频网络的频率越高，覆盖范围小。波束成形(beamforming)技术由于信号能量集中，被应用于增大高频网络的覆盖范围，使得位于高频网络边缘的终端可以接入高频网络享受高频网络优质的服务。
目前，采用波束成形的方式扩大高频网络的覆盖范围的方案为：终端优先随机接入高频网络，与高频网络的接入设备建立无线资源控制(英文全称：Radio Resource Control，RRC)连接；然后向高频网络的接入设备发送信道探测信号(英文全称：Sounding Reference Signal，SRS)，接入设备根据上下行信道的对称性，估算出终端与接入设备间的确定的最佳beam，之后终端与接入设备间以beamforming的方式做数据的传输。
由上述终端随机接入高频网络的过程可知，终端需要先与接入设备建立连接，再通过交互后接入波束(beam)，导致终端接入beam不及时，从而造成终端接入高频网络的成功率低。
发明内容
本发明实施例提供一种随机接入方法、装置及系统，实现终端及时接入beam，以提高终端接入网络的成功率。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，提供一种随机接入方法，具体包括：终端接收第一接入设备由波束成形方式生成的多个波束上的多个信号，再确定多个波束中信号最强的波束；并根据配置信息生成信号最强的波束的前导信号；终端向第一接入设备发送生成的前导信号。
这样一来，终端在接入第一接入设备前，即在终端的初始接入阶段，已经确定了信号最强的波束作为接入第一接入设备的波束，并且向第一接入设备发送了确定的信号最强的波束的前导信号，第一接入设备则可以根据接收到前导信号识别出终端确定的信号最强的波束，通过该波束与终端建立连接完成终端的随机接入。在该过程中，终端及时的接入第一接入设备的波束，提高了终端接入第一接入设备的成功率。
可选的，配置信息可以包括信号最强的波束的波束配置；或者，配置信息可以包括小区配置和信号最强的波束的标识；或者，配置信息可以包括信号最强的波束的波束配置和信号最强的波束的标识。
其中，信号最强的波束的波束配置包括第一接入设备为该信号最强的波束分配的至少一个前导序列码及发送前导信号的时频资源信息。时频资源信息用于指示发送前导信号时占用的时频资源。小区配置包括网络为第一接入设备提供的网络分配的至少一个前导序列码及发送前导信号的时频资源信息。波束的标识用于指示唯一的波束。
其中，一个波束的前导信号可以唯一的确定出该波束。
可选的，在生成一个波束的前导信号时，可以通过在该波束的波束配置中竞争选择前导序列码作为前导信号，并在该波束的波束配置中竞争选择时频资源发送前导信号。这样一来，接收方根据波束配置，即可通过前导信号的内容及发送前导信号占用的时频资源唯一的确定出该波束。
可选的，在生成一个波束的前导信号时，可以通过在该波束的前导信号中携带该波束的标识，接收方即可通过前导信号中携带的 波束标识唯一的确定出该波束。
进一步的，当第一接入设备提供的网络为高频网络时，本申请的方案则实现了终端及时接入高频网络，提高了终端接入高频网络的成功率。
结合第一方面，在一种可能的实现方式中，为了提高方案的可实现性，配置信息可以包括信号最强的波束的波束配置，终端接收第一接入设备的多个波束上的多个信号，具体可以实现为：终端接收信号最强的波束上的广播信号；广播信号用于广播信号最强的波束波束配置。
在另一种可能的实现方式中，当配置信息包括信号最强的波束的波束配置时，所述方法还可以包括终端从第二接入设备接收信号最强的波束的波束配置。也就是说，由第二接入设备辅助第一接入设备广播信号最强的波束的波束配置。
具体的，终端处于第二接入设备提供的网络的覆盖范围内。
进一步的，若第二接入设备提供的网络和第一接入设备提供的网络共站，则第二接入设备可以直接获取第一接入设备配置的每个波束的波束配置进行广播；若第二接入设备提供的网络和第一接入设备提供的网络非共站，则第二接入设备可以与第一接入设备通过X2口信息交互，获取配置的每个波束的波束配置进行广播。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，当配置信息为信号最强的波束的波束配置时，终端根据配置信息生成信号最强的波束的前导信号，具体可以实现为：终端先获取信号最强的波束的波束配置中的前导序列码及发送随机接入前导序列的时频资源信息；然后竞争选择一个前导序列码作为随机接入前导序列；竞争获取一个时频资源作为随机接入时频资源，并在竞争获取的随机接入时频资源上向第一接入设备发送选择的随机接入前导序列作为前导信号。这样一来，在第一接入设备接收到前导信号时，则可以根据前导信号的内容及占用的时频资源查找每个波束波束配置，就能唯一确定终端确定的信号最强的波束，即唯 一的确定除了终端选择接入第一接入设备提供的网络的波束。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，终端接收第一接入设备的多个波束上的多个信号具体还可以实现为：在终端接收信号最强的波束上的广播信号的基础上，终端接收信号最强的波束上的同步信号。
需要说明的是，当第一接入设备的多个波束上的多个信号包括广播信号和同步信号时，终端可以确定广播信号或者同步信号中任一个信号最强的波束，作为多个波束中信号最强的波束。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，配置信息可以包括小区配置及信号最强的波束的标识，或者，配置信息包括信号最强的波束的波束配置及信号最强的波束的标识。终端接收第一接入设备的多个波束上的多个信号，具体可以实现为：终端接收信号最强的波束上的同步信号或者广播信号；信号最强的波束上的同步信号或者广播信号携带最强的波束的标识。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，若配置信息包括小区配置及信号最强的波束的标识，或者，配置信息包括信号最强的波束的波束配置及信号最强的波束的标识时，终端根据配置信息生成信号最强的波束的前导信号，具体可以实现为：终端在小区配置或者信号最强的波束的波束配置中，竞争选择一个前导序列码作为前导信号，并竞争选择发送前导信号的时频资源，在竞争选择的时频资源上发送前导信号，并在前导信号中携带终端确定的信号最强的波束的标识。这样一来，第一接入设备在接收到前导信号时，根据前导信号中携带的波束标识，即可快速准确的识别出波束，很好的保证了终端与接入设备通过beamforming方式通信的准确度。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，波束的标识可以有多种方式。可选的，广播信号中包括波束的标识，即显式的携带波束的标识。可选的，第一接入设备 通过下行同步信号(主同步信号(英文全称：Primary Synchronization Signal，PSS)/辅同步信号(英文全称：Secondary Synchronization Signal，SSS)唯一对应波束，则同步信号隐式的携带波束的标识标识。
具体的，若beam波束的物理小区标识(英文全称：Physical Cell Identifier，PCI)都不同，可以通过PSS/SSS唯一对应的PCI来识别不同的波束。若波束的PCI相同，可类似的使用扩展的PSS/SSS来识别不同的波束。
结合第一方面或上述任一种可能的实现方式，在另一种可能的实现方式中，若配置信息包括小区配置及信号最强的波束的标识，或者，配置信息包括信号最强的波束的波束配置及信号最强的波束的标识时，终端获取小区配置或者信号最强的波束的波束配置具体可以实现为：从第二接入设备接收小区配置或者信号最强的波束的波束配置，或者，信号最强的波束上的广播信号用于广播小区配置或者信号最强的波束的波束配置。
第二方面，本发明提供另一种随机接入方法，具体包括：第一接入设备在由波束成形方式生成的多个波束上向终端发送多个信号；之后第一接入设备接收终端发送信号最强的波束的前导信号；然后第一接入设备根据接收的前导信号，识别终端接入第一接入设备提供的网络的波束建立与终端之间的RRC连接。
在本发明提供的随机接入方法中，第一接入设备在由波束形成方式生成的多个波束上向终端发送信号扩大了第一接入设备提供的网络覆盖范围，终端则可以在接入阶段根据多个波束上的多个信号确定信号最强的波束，并向终端发送信号最强的波束的前导信号，第一接入设备根据接收的前导信号可以准确识别终端选择接入第一接入设备的最佳beam。在该过程中，终端及时接入beam，提高了终端接入第一接入设备提供的网络的成功率。
其中，一个波束的前导信号可以唯一的确定出该波束。
与第一方面中生成一个波束的前导信号相对应，可选的，在第 一接入设备接收到一个波束的前导信号时，可以根据波束配置，即可通过前导信号的内容及发送前导信号占用的时频资源唯一的确定出该波束。或者，第一接入设备可以通过前导信号中携带的波束标识唯一的确定出该波束。
结合第二方面，在一种可能的实现方式中，第一接入设备在多个波束上向终端发送多个信号，具体可以实现为：第一接入设备在多个波束上向终端发送广播信号；广播信号用于广播第一接入设备的波束配置。相应的，第一接入设备根据前导信号，识别终端接入第一接入设备的波束建立与终端之间的RRC连接，则可以实现为：第一接入设备根据前导信号及第一接入设备的波束配置，识别终端接入第一接入设备提供的网络的波束建立RRC连接。
其中，一个接入设备的波束配置，是该接入设备为其每个波束分配的前导序列码及发送前导信号的时频资源信息。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，第一接入设备根据前导信号及信号最强的波束的波束配置，识别终端接入第一接入设备提供的网络的波束，具体可以实现为：第一接入设备识别终端接入第一接入设备提供的网络的波束为波束配置中，第一接入设备接收的前导信号及其占用的时频资源对应的波束。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，为了节约系统资源，保证终端获取波束配置的成功率及准确度，第一接入设备可以通过第二接入设备向终端发送第一接入设备的波束配置，以代替通过广播信号向终端发送第一接入设备的波束配置。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，第一接入设备通过第二接入设备向终端发送第一接入设备的波束配置，具体可以实现为：第一接入设备向第二接入设备发送第一接入设备的波束配置，第二接入设备向终端转发第一接入设备的波束配置。即通过第二接入设备的辅助，向终端发送第一接 入设备的波束配置。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，在第一接入设备在多个波束上向终端发送多个信号，具体可以实现为第一接入设备在多个波束上向终端发送广播信号；广播信号用于广播第一接入设备的波束配置的基础上，第一接入设备在多个波束上向终端发送多个信号还包括：第一接入设备在多个波束上向终端发送同步信号。在该实现方式中，第一接入设备在多个波束上既向终端发送同步信号也向终端发送广播信号，广播信号用于广播每个波束的波束配置。
进一步的，当第一接入设备在多个波束上既向终端发送同步信号也向终端发送广播信号时，终端可以根据多个波束上的同步信号或广播信号中任一项确定信号最强的波束。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，第一接入设备在多个波束上向终端发送多个信号，具体可以实现为：第一接入设备在多个波束上向终端发送同步信号，第一接入设备通过第二接入设备向终端广播第一接入设备的波束配置。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，第一接入设备在多个波束上向终端发送多个信号，具体可以实现为：第一接入设备在多个波束上向终端发送同步信号或者广播信号；同步信号或者广播信号携带每个波束的标识。这样一来，终端在多个波束上接收多个信号后，可以获取确定的信号最强的波束的标识，携带在前导信号中提供给第一接入设备，用于第一接入设备识别终端确定的信号最强的波束。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，前导信号携带终端确定的信号最强的波束的标识。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，当前导信号携带终端确定的信号最强的波束的标识时，第一接入设备识别终端接入第一接入设备提供的网络的波束，为前 导信号中携带的波束的标识指示的波束。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，所述方法还包括：第一接入设备通过第二接入设备向终端发送小区配置或者第一接入设备的波束配置；或者，广播信号用于广播小区配置或者第一接入设备的波束配置。
其中，小区配置已经在第一方面中进行了详细描述，此处不再进行赘述。
结合第二方面或上述任一种可能的实现方式，在另一种可能的实现方式中，所述方法还包括：第一接入设备接收第三接入设备发送的第三接入设备分配的波束配置，第一接入好设备广播第三接入设备分配的波束配置。
第三方面，本发明实施例提供了一种终端，该装置可以实现上述方法示例中终端所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
结合第三方面，在一种可能的实现方式中，该终端的结构中包括处理器和收发器，该处理器被配置为支持该终端执行上述方法中相应的功能。该收发器用于支持该终端与其他网元之间的通信。该终端还可以包括存储器，该存储器用于与处理器耦合，其保存该终端必要的程序指令和数据。
第四方面，本发明实施例提供了一种第一接入设备，该第一接入设备可以实现上述方法示例中第一接入设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
结合第四方面，在一种可能的实现方式中，该第一接入设备的结构中包括处理器和收发器，该处理器被配置为支持该第一接入设备执行上述方法中相应的功能。该收发器用于支持该第一接入设备与其他网元之间的通信。该第一接入设备还可以包括存储器，该存储器用于与处理器耦合，其保存该装置必要的程序指令和数据。
第五方面，本发明实施例提供了一种随机接入系统，该系统包括至少一个上述任一方面或任一种可能的实现方式所述的终端和至少一个上述任一方面或任一种可能的实现方式所述的第一接入设备。
第六方面，本发明实施例提供了一种计算机存储介质，用于储存为上述终端所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第七方面，本发明实施例提供了一种计算机存储介质，用于储存为上述第一接入设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
上述第三方面至第七方面提供的方案，用于实现上述第一方面或第二方面提供的随机接入方法，因此可以与第一方面或第二方面达到相同的有益效果，此处不再进行赘述。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种网络架构示意图；
图2为本发明实施例提供的一种终端20的结构示意图；
图3为本发明实施例提供的一种第一接入设备30的结构示意图；
图4为本发明实施例提供的一种随机接入方法的场景示意图；
图5为本发明实施例提供的一种随机接入方法的流程示意图；
图6为本发明实施例提供的另一种终端20的结构示意图；
图7为本发明实施例提供的再一种终端20的结构示意图；
图8为本发明实施例提供的另一种第一接入设备30的结构示意图；
图9为本发明实施例提供的再一种第一接入设备30的结构示意图；
图10为本发明实施例提供的一种随机接入系统的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在目前的随机接入过程中，接入设备以常规方式发送同步信号，用于终端发现网络进行接入，仅在终端进行数据传输时以beamforming方式与终端通信，以扩大系统容量，但在终端的接入阶段，由于高频网络的覆盖范围小，目前的随机接入过程未及时接入beamforming生成的波束，造成终端接入高频网络的成功率不高。
基于此，本发明的基本原理是：接入设备在以beamforming方式生成的多个波束上向终端发送多个信号，终端根据这些信号的强度确定信号最强的波束，并根据信号最强的波束向接入设备发送前导信号，使得接入设备根据接收的前导信号即可唯一且准确的识别出终端确定的信号最强的波束。由于在接入前即确定了信号最强的波束，及时的接入了波束，大大提高了终端随机接入网络的成功率。
本发明实施例提供的随机接入方法应用于如图1所示的网络架构中，在图1的网络架构中，包括至少一个接入设备，以及至少一个终端。图1中接入设备及终端的数量，只是一种示例，并不是对网络架构中接入设备及终端数量的限定。图1中的至少一个接入设 备用于提供至少一个网络，终端随机接入网络以实现终端的业务。
可选的，图1中的接入设备可以为基站，或者其他具有接入功能的网元，本发明实施例对此不进行具体限定。
应理解，在本发明实施例中，终端可称之为用户设备(英文全称：User Equipment，UE)、移动台(英文全称：Mobile Station，MS)、移动终端(英文全称：Mobile Terminal)等。该终端可以经无线接入网(Radio Access Network，RAN)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)、具有移动终端的计算机等，例如，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，它们与无线接入网交换语音和/或数据。
本发明实施例提供的随机接入方法可以由本发明实施例提供的终端或者第一接入设备执行。
图2示出的是与本发明各实施例相关的一种终端20的结构示意图，该终端20可以为图1中任一终端的部分或全部。
如图2所示，该终端20可以包括：处理器201、存储器202、收发器203。
下面结合图2对终端20的各个构成部件进行具体的介绍：
存储器202，可以是易失性存储器(英文全称：volatile memory)，例如随机存取存储器(英文全称：random-access memory，RAM)；或者非易失性存储器(英文全称：non-volatile memory)，例如只读存储器(英文全称：read-only memory，ROM)，快闪存储器(英文全称：flash memory)，硬盘(英文全称：hard disk drive，HDD)或固态硬盘(英文全称：solid-state drive，SSD)；或者上述种类的存储器的组合，用于存储可实现本发明方法的相关应用程序、以及配置文件。
处理器201是终端20的控制中心，可以是一个中央处理器(英文全称：central processing unit，CPU)，也可以是特定集成电路(英文全称：Application Specific Integrated Circuit，ASIC)，或者是被 配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(英文全称：digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(英文全称：Field Programmable Gate Array，FPGA)。处理器201可以通过运行或执行存储在存储器202内的软件程序和/或模块，以及调用存储在存储器202内的数据，执行终端20的各种功能。
收发器203可以为终端20的收发天线。
进一步的，图3示出的是与本发明各实施例相关的一种第一接入设备30的结构示意图，该第一接入设备30可以为图1中任一接入设备(第一接入设备)的部分或全部。
如图3所示，该第一接入设备30可以包括：处理器301、存储器302、收发器303。
下面结合图3对第一接入设备30的各个构成部件进行具体的介绍：
存储器302，可以是volatile memory，例如RAM；或者non-volatile memory，例如ROM，flash memory，HDD或SSD；或者上述种类的存储器的组合，用于存储可实现本发明方法的相关应用程序、以及配置文件。
处理器301是第一接入设备30的控制中心，可以是一个CPU，也可以是ASIC，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个DSP，或，一个或者多个FPGA。处理器301可以通过运行或执行存储在存储器302内的软件程序和/或模块，以及调用存储在存储器302内的数据，执行第一接入设备30的各种功能。
收发器303可以为第一接入设备30的收发天线。
下面结合附图，对本发明的实施例进行具体阐述。
一方面，本发明实施例提供一种随机接入方法，应用于图4所示的场景。在图4所示的场景中，终端位于第一接入设备提供的网络的覆盖区域(图4中实线所示)边缘，该终端位于第一接入设备 提供的网络的扩大后的覆盖区域内(图4中虚线所示)，该终端位于第二接入设备提供的网络的覆盖区域内(图4中实线所示)，通过本发明实施例提供一种随机接入方法，使得该终端及时准确的接入波束进而及时准确的接入第一接入设备提供的网络中。
本发明实施例以终端与第一接入设备或第一接入设备及第二接入设备的交互过程为例，对本发明实施例提供一种随机接入方法进行详细描述。如图5所示，本发明实施例提供一种随机接入方法可以包括：
S501、第一接入设备在多个波束上向终端发送多个信号。
其中，多个波束是由波束成形方式生成的，用于扩大第一接入设备提供的网络的覆盖范围。
可选的，第一接入设备在多个波束上向终端发送的多个信号，可以包括同步信号，或者，广播信号，或者同步信号和广播信号。
进一步可选的，第一接入设备在多个波束上向终端发送多个信号时，还可以向终端发送第一接入设备的波束配置。第一接入设备的波束配置用于终端生成向第一接入设备发送的前导信号。
其中，第一接入设备的波束配置由第一接入设备预先配置，第一接入设备的波束配置包括第一接入设备为其每个波束分配的至少一个前导序列码及发送前导信号所用的时频资源指示信息。
可选的，可以通过广播信号广播第一接入设备的波束配置，或者，通过第二接入设备向终端发送第一接入设备的波束配置。
其中，终端处于第二接入设备提供的网络的覆盖范围内。
进一步的，若第二接入设备提供的网络和第一接入设备提供的网络共站，则第二接入设备可以直接获取第一接入设备配置的每个波束的波束配置进行广播；若第二接入设备提供的网络和第一接入设备提供的网络非共站，则第二接入设备可以与第一接入设备通过X2口信息交互，获取配置的每个波束的波束配置进行广播。
示例性的，假设第一接入设备以beamforming方式生成了8个beam；对这8个beam，第一接入设备配置的第一接入设备的波束配 置的具体内容包括：beam0配置前导序列码(preamble)0～7，beam1配置preamble8～15，……，beam7配置preamble56～63；分配的时频资源信息指示：为beam0分配时频资源0～2，为beam1分配时频资源3～5，……，为beam7分配时频资源21～23。该第一接入设备的波束配置可以以表1的形式存储及发送。
表1
beam编号 配置的preamble 分配的时频资源
0 0～7 0～2
1 8～15 3～5
2 16～23 6～8
3 24～31 9～11
4 32～39 12～14
5 40～47 15～17
6 48～55 18～20
7 56～63 21～23
需要说明的是，表1只是以示例的形式，对第一接入设备的波束配置进行举例说明，并不是对第一接入设备的波束配置的形式及内容的具体限定。在实际应用中，可以根据实际需求设定第一接入设备的波束配置的内容及形式。
进一步可选的，第一接入设备在多个波束上向终端发送多个信号时，还可以携带在每个波束中携带各自的波束标识。
其中，波束标识可以用来唯一指示一个波束。
可选的，本发明实施例所述的波束标识可以包括但不限于下述两种形式：
第一形式：显式的波束标识。
其中，显式的波束标识是用来明确指示波束的标识信息，显式的波束标识可以直接携带在波束中，接收方则可以直接提取。
示例性的，第一接入设备可以在beamforming的方式生成的各个波束中发送多个信号时，在每个波束上发送的信号中分别携带每 个波束各自的标识，这种提供波束标识的形式则为上述的第一形式所述的显式的波束标识。
第二形式：隐式的波束标识。
其中，隐式的波束标识是用来确定波束标识的指示信息，通过隐式的波束标识可以计算得到波束标识。
示例性的，第一接入设备在beamforming的方式生成的多个波束上发送下行同步信号时，通过PSS/SSS则可以隐含的通知终端每个波束的标识。接收方根据PSS/SSS则可以唯一确定一个波束，即获取到了波束的标识。
具体的，若beam的PCI都不同，接收方可以通过PSS/SSS唯一对应的PCI来识别不同的beam。若beam的PCI相同，接收方可类似的使用扩展的PSS/SSS来识别不同的beam。
其中，PSS是主同步信道(英文全称：primary synchronous channel，P-SCH)中传播的序列，共3种可能性；SSS是辅同步信道(英文全称：Secondary synchronous channel，S-SCH)中传播的序列，共168种可能性；两个序列的序号组合，即可获取到beam的ID。
需要说明的是，本发明实施例对于根据PSS/SSS两个序列的组合获取beam ID的过程，不再进行赘述。
具体的，第一接入设备在多个波束上向终端发送多个信号的内容可以有多种实现方式，具体可以包括但不限于下述五种方案：
方案1、
第一接入设备在多个波束上向终端发送广播信号，广播信号用于广播第一接入设备的波束配置。
需要说明的是，在本发明的实施例中，第一接入设备的波束配置在广播信号中的形式和位置，可以根据实际需求设定，本发明实施例对此不进行具体限定。
方案2、
第一接入设备在多个波束上向终端发送同步信号以及广播信 号，广播信号用于广播第一接入设备的波束配置。
方案3、
第一接入设备在多个波束上向终端发送同步信号，第一接入设备通过第二接入设备向终端发送第一接入设备的波束配置。
方案4、
第一接入设备在多个波束上向终端发送广播信号，每个波束上发送的广播信号携带各自的波束标识，广播信号用于广播第一接入设备的波束配置。
方案5、
第一接入设备在多个波束上向终端发送同步信号，每个波束上发送的同步信号携带各自的波束标识。
其中，在方案5中，第一接入设备还可以向终端发送第一接入设备的波束配置或者小区配置。
其中，小区配置为向第一接入设备提供的网络分配的至少一个前导序列码及发送前导信号的时频资源信息。时频资源信息用于指示至少一个时频资源。
可选的，在方案5中，第一接入设备还可以向终端发送第一接入设备的波束配置或者小区配置，可以包括：第一接入设备直接向终端发送第一接入设备的波束配置或者小区配置，或者，第一接入设备通过第二接入设备向终端发送第一接入设备的波束配置或者小区配置。
需要说明的是，小区配置也可以预先配置在终端中，方案5中则无法再向终端发送小区配置。
还需要说明的是，上述5种方案仅是通过列举的方式，对S501的实现方案进行说明，并不是对实现S501的过程的具体限定。在实际应用中，S501还可以有其他实现方式，本发明实施例对此不进行具体限定。
S502、终端接收第一接入设备的多个波束上的多个信号。
需要说明的是，S502中终端接收的信号即为S501中第一接入 设备发送的信号，对于多个波束上的多个信号的内容，已经在S501中进行了详细描述，此处不再进行赘述。
S503、终端确定多个波束中信号最强的波束。
S504、终端根据配置信息生成信号最强的波束的前导信号。
其中，一个波束的前导信号可以唯一的确定出该波束。
可选的，在生成一个波束的前导信号时，可以通过在该波束的波束配置中竞争选择前导序列码作为前导信号，并在该波束的波束配置中竞争选择时频资源发送前导信号。这样一来，接收端根据波束配置，即可通过前导信号的内容及发送前导信号占用的时频资源唯一的确定出该波束。
可选的，在生成一个波束的前导信号时，可以通过在该波束的前导信号中携带该波束的标识，接收方即可通过前导信号中携带的波束标识唯一的确定出该波束。
需要说明的是，在生成一个波束的前导信号时，对于如何配置一个波束的前导信号，使得该波束的前导信号可以唯一的确定出该波束，可以根据实际需求确定，本发明实施例对此不进行具体限定。
其中，配置信息可以包括信号最强的波束的波束配置；或者，配置信息可以包括小区配置及所述信号最强的波束的标识；或者，配置信息包括所述信号最强的波束的波束配置及所述信号最强的波束的标识。
具体的，配置信息的具体内容，取决于第一接入设备向终端发送的内容。当第一接入设备仅向终端发送了第一接入设备的波束配置，那么配置信息包括信号最强的波束的波束配置。当第一接入设备仅向终端发送了第一接入设备的波束配置及每个波束的标识，那么配置信息包括信号最强的波束的波束配置及信号最强的波束的标识。当第一接入设备仅向终端发送了小区配置及每个波束的标识，那么配置信息包括小区配置及信号最强的波束的标识。
具体的，根据配置信息的内容的不同，S504中终端根据配置信息生成信号最强的波束的前导信号的方案包括且不限于下述两种方 案。
第一方案、配置信息包括信号最强的波束的波束配置。
在第一方案中，终端执行S504的过程具体可以包括：
终端在信号最强的波束的波束配置包括的至少一个前导序列码中，竞争选择一个前导序列码作为前导信号。
示例性的，假设第一接入设备的波束配置如表1所示，终端确定beam3为信号最强的beam，即确定接入第一接入设备的最佳beam为beam3，那么，终端在执行S504时，先获取表1所示的第一接入设备的波束配置中确定的beam3的波束配置中的前导序列码为preamble24～31；然后在preamble24～31中竞争选择一个preamble(假设选择preamble26)作为前导信号。
第二方案、配置信息包括小区配置。
在第二方案中，终端执行S504的过程具体可以包括：
终端在小区配置包括的至少一个前导序列码中，竞争选择一个前导序列码作为前导信号。
S505、终端向第一接入设备发送信号最强的波束的前导信号。
具体的，根据配置信息的内容的不同，S505中终端向第一接入设备发送信号最强的前导信号的方案包括且不限于下述两种方案。
方案A、配置信息不包括信号最强的波束的标识。
在方案A中，对应于S504中的第一方案，终端向第一接入设备发送前导信号的方案可以实现为：
终端在信号最强的波束的波束配置包括时频资源指示信息指示的至少一个时频资源中，竞争选择一个时频资源，并在选择的时频资源上向第一接入设备发送生成的前导信号。
示例性的，对应于S504中的第一方案中的示例，假设第一接入设备分配的beam识别信息如表1所示，终端在beam3的波束配置中包括的时频资源信息指示的时频资源9～11中，竞争获取一个时频资源(假设竞争获取到时频资源10)，在时频资源10上，向第一接入设备发送preamble26。
在方案A中，对应于S504中的第二方案，终端向第一接入设备发送前导信号的方案可以实现为：
终端在小区配置包括时频资源指示信息指示的至少一个时频资源中，竞争选择一个时频资源，并在选择的时频资源上向第一接入设备发送生成的前导信号。
方案B、配置信息包括信号最强的波束的标识。
在方案B中，对应于S504中的第一方案，终端向第一接入设备发送前导信号的方案可以实现为：
终端在信号最强的波束的波束配置包括时频资源指示信息指示的至少一个时频资源中，竞争选择一个时频资源，并在选择的时频资源上向第一接入设备发送生成的前导信号，前导信号携带信号最强的波束的标识。
在方案B中，对应于S504中的第二方案，终端向第一接入设备发送前导信号的方案可以实现为：
终端在小区配置包括时频资源指示信息指示的至少一个时频资源中，竞争选择一个时频资源，并在选择的时频资源上向第一接入设备发送生成的前导信号，前导信号携带信号最强的波束的标识。
示例性的，假设第一接入设备的波束配置如表1所示，终端确定信号最强的beam3为接入第一接入设备提供的网络的最佳beam，并获取到beam3中的beam ID为ID3；那么，终端在执行S504时，先在表1所示的beam3的波束配置中的前导序列码preamble24～31中竞争选择一个preamble(假设选择preamble26)作为前导信号，然后在表1所示的beam3的波束配置中的时频资源信息指示时频资源9～11中竞争获取一个时频资源(假设竞争获取到时频资源10)，那么，终端在时频资源10上，向第一接入设备发送preamble26，并携带ID3。
S506、第一接入设备接收终端发送的信号最强的波束的前导信号。
需要说明的是，S506中第一接入设备接收的前导信号，即S505 中终端发送的前导信号，此处不再进行赘述。
S507、第一接入设备根据接收的前导信号，识别终端选择接入第一接入设备提供的网络的波束建立与终端之间的RRC连接。
其中，一个波束的前导信号可以唯一的确定出该波束。
与S504中生成一个波束的前导信号相对应，可选的，在S506中，第一接入设备接收到一个波束的前导信号时，可以根据波束配置，即可通过前导信号的内容及发送前导信号占用的时频资源唯一的确定出该波束。或者，第一接入设备可以通过前导信号中携带的波束标识唯一的确定出该波束。
可选的，根据S505中终端发送前导信号的方案不同，第一接入设备在S507中根据前导信号，识别终端接入第一接入设备提供的网络的波束的方法也不同。具体可以包括下述两种实现方式：
第一种实现方式、对应S505中的方案A，配置信息不包括信号最强的波束的标识，终端发送的前导信号不携带终端确定的信号最强的波束的标识，第一接入设备执行S507的过程具体可以包括：
第一接入设备先获取接收的终端发送的前导信号的及其占用的时频资源；然后查找第一接入设备的波束配置，确定终端接入第一接入设备提供的网络的波束，为第一接入设备的波束配置中，接收的终端发送的前导信号及前导信号占用的时频资源对应的波束。
示例性的，假设第一接入设备的波束配置如表1所示，假设第一接入设备在时频资源10上接收到终端发送的前导信号为preamble26，那么，第一接入设备查找表1所示的第一接入设备的波束配置，确定终端接入第一接入设备的波束，为前导信号preamble26及前导信号占用的时频资源10对应的beam3。
第二种实现方式、对应S505中的方案B，配置信息包括信号最强的波束的标识，终端发送的前导信号携带终端确定的信号最强的波束的标识。
在第二种实现方式中，第一接入设备执行S507的过程具体可以包括：
第一接入设备识别终端选择接入第一接入设备提供的网络的波束，为第一接入设备接收的前导信号中包括的波束标识指示的波束。
进一步的，当第一接入设备提供的网络的覆盖范围比第三接入设备提供的覆盖范围大，第三接入设备可以通过第一接入设备向终端发送小区配置或者第三接入设备的波束配置。此时，所述方法还可以包括：
第一接收设备接收第三接入设备发送的小区配置或者第三接入设备的波束配置，然后广播小区配置或者第三接入设备的波束配置。
本发明实施例提供的随机接入方法，终端在接入第一接入设备前，即在终端的初始接入阶段，已经确定了信号最强的波束作为接入第一接入设备的波束，并且向第一接入设备发送了确定的信号最强的波束的前导信号，第一接入设备则可以根据接收到前导信号识别出终端确定的信号最强的波束，通过该波束与终端建立连接完成终端的随机接入。在该过程中，终端及时的接入第一接入设备的波束，提高了终端接入第一接入设备的成功率。
上述主要从各个网元之间交互的角度对本发明实施例提供的方案进行了介绍。可以理解的是，各个网元，例如终端、第一接入设备等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
本发明实施例可以根据上述方法示例对终端、第一接入设备等进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本发明实施例中对模块的划分是示意性的， 仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图6示出了上述实施例中所涉及的终端20的一种可能的结构示意图，终端20包括：接收单元601，确定单元602，生成单元603，发送单元604。接收单元601用于支持终端20执行图5中的过程S502，确定单元602用于支持终端20执行图5中的过程S503；生成单元603用于支持终端20执行图5中的过程S504，发送单元604用于支持终端20执行图5中的过程S505。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用集成的单元的情况下，图7示出了上述实施例中所涉及的终端20的一种可能的结构示意图。终端20可以包括：处理模块701和通信模块702。处理模块701用于对终端20的动作进行控制管理，例如，处理模块701用于支持终端20执行图5中的过程S503、S504，和/或用于本文所描述的技术的其它过程。处理模块701还用于支持终端20通过通信模块702执行图5中的过程S502及S505。通信模块702用于支持终端20与其他网络实体的通信。终端20还可以包括存储模块703，用于存储终端20的程序代码和数据。
其中，处理模块701可以为图2所示的终端20的实体结构中的处理器201，可以是处理器或控制器，例如可以是CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块702可以是图2所示的终端20的实体结构中的收发器，或者可以是收发电路或通信接口等。存储模块703可以是图2所示的终端20的实体结构中的存储器。
当处理模块701为处理器，通信模块702为收发器，存储模块703为存储器时，本发明实施例图7所涉及的终端20可以为图2所示的终端20。
在采用对应各个功能划分各个功能模块的情况下，图8示出了上述实施例中所涉及的第一接入设备30的一种可能的结构示意图，第一接入设备30包括：发送单元801，接收单元802，识别单元803。发送单元801用于支持第一接入设备30执行图5中的过程S501，接收单元802用于支持第一接入设备30执行图5中的过程S506；识别单元803用于支持第一接入设备30执行图5中的过程S507。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用集成的单元的情况下，图9示出了上述实施例中所涉及的第一接入设备30的一种可能的结构示意图。第一接入设备30可以包括：处理模块901和通信模块902。处理模块901用于对第一接入设备30的动作进行控制管理，例如，处理模块901用于支持第一接入设备30执行图5中的过程S507，和/或用于本文所描述的技术的其它过程。处理模块901还用于支持第一接入设备30通过通信模块902执行图5中的过程S501及S506。通信模块902用于支持第一接入设备30与其他网络实体的通信。第一接入设备30还可以包括存储模块903，用于存储第一接入设备30的程序代码和数据。
其中，处理模块901可以为图3所示的第一接入设备30的实体结构中的处理器301，可以是处理器或控制器，例如可以是CPU，通用处理器，DSP，ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块902可以是图3所示的第一接入设备30的实体结构中的收发器，或者可以是收发电路或通信接口等。存储模块903可以是图2所示的第一接入设备30的实体结构中的存储器。
当处理模块901为处理器，通信模块902为收发器，存储模块903为存储器时，本发明实施例图9所涉及的第一接入设备30可以 为图3所示的第一接入设备30。
结合本发明公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
再一方面，本发明实施例提供一种随机接入系统100，如图10所示，所示随机接入系统100可以包括：
至少一个上述任一实施例所述的终端20，及至少一个上述任一实施例所述的第一接入设备30。
还需要说明的是，图10中只是示意描述随机接入系统100的架构，并不是对随机接入系统100包括的终端20及第一接入设备30的数量的限定。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的 对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记 载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (23)

  1. 一种随机接入方法，其特征在于，所述方法包括：
    终端接收第一接入设备的多个波束上的多个信号；其中，所述多个波束是由波束成形方式生成的；
    所述终端确定所述多个波束中信号最强的波束；
    所述终端根据配置信息生成所述信号最强的波束的前导信号；
    所述终端向所述第一接入设备发送所述前导信号。
  2. 如权利要求1所述的方法，其特征在于，所述配置信息包括所述信号最强的波束的波束配置，所述终端接收第一接入设备的多个波束上的多个信号，包括：
    所述终端接收所述信号最强的波束上的广播信号；所述广播信号用于广播所述波束配置。
  3. 如权利要求2所述的方法，其特征在于，所述终端接收第一接入设备的多个波束上的多个信号还包括：
    所述终端接收所述信号最强的波束上的同步信号。
  4. 如权利要求1所述的方法，其特征在于，所述配置信息包括小区配置及所述信号最强的波束的标识，或者，所述配置信息包括所述信号最强的波束的波束配置及所述信号最强的波束的标识；所述终端接收第一接入设备的多个波束上的多个信号，包括：
    所述终端接收所述信号最强的波束上的同步信号或者广播信号；所述同步信号或者广播信号携带所述最强的波束的标识。
  5. 如权利要求4所述的方法，其特征在于，
    所述方法还包括：所述终端从第二接入设备接收所述小区配置或者所述波束配置；
    或者，
    所述广播信号用于广播所述小区配置或者所述波束配置。
  6. 一种随机接入方法，其特征在于，所述方法包括：
    第一接入设备在多个波束上向终端发送多个信号；其中，所述多个波束是由波束成形方式生成的；
    所述第一接入设备接收所述终端发送的信号最强的波束的前导信号；
    所述第一接入设备根据所述前导信号，识别所述终端接入所述第一接入设备提供的网络的波束建立与所述终端之间的无线资源控制RRC连接。
  7. 如权利要求6所述的方法，其特征在于，所述第一接入设备在多个波束上向终端发送多个信号，包括：
    所述第一接入设备在所述多个波束上向所述终端发送广播信号；所述广播信号用于广播所述第一接入设备的波束配置；
    所述第一接入设备根据所述前导信号，识别所述终端接入所述第一接入设备提供的网络的波束建立与所述终端之间的RRC连接，包括：
    所述第一接入设备根据所述前导信号及所述波束配置，识别所述终端接入所述第一接入设备提供的网络的波束建立所述RRC连接。
  8. 如权利要求7所述的方法，其特征在于，所述第一接入设备在多个波束上向终端发送多个信号还包括：
    所述第一接入设备在所述多个波束上向所述终端发送同步信号。
  9. 如权利要求6所述的方法，其特征在于，所述第一接入设备在多个波束上向终端发送多个信号，包括：
    所述第一接入设备在所述多个波束上向所述终端发送同步信号或者广播信号；所述同步信号或者广播信号携带每个波束的标识。
  10. 如权利要求9所述的方法，其特征在于，所述前导信号携带所述终端确定的信号最强的波束的标识。
  11. 如权利要求9或10所述的方法，其特征在于，
    所述方法还包括：所述第一接入设备通过第二接入设备向所述终端发送小区配置或者第一接入设备的波束配置；
    或者，
    所述广播信号用于所述广播小区配置或者所述波束配置。
  12. 一种终端，其特征在于，所述终端包括处理器及收发器； 所述处理器用于：
    通过所述收发器接收第一接入设备的多个波束上的多个信号；其中，所述多个波束是由波束成形方式生成的；
    确定所述多个波束中信号最强的波束；
    根据配置信息生成所述信号最强的波束的前导信号；
    通过所述收发器向所述第一接入设备发送所述前导信号。
  13. 如权利要求12所述的终端，其特征在于，所述配置信息包括所述信号最强的波束的波束配置，所述处理器具体用于：
    通过所述收发器接收所述信号最强的波束上的广播信号；所述广播信号用于广播所述波束配置。
  14. 如权利要求13所述终端，其特征在于，所述处理器具体还用于：
    通过所述收发器接收所述信号最强的波束上的同步信号。
  15. 如权利要求12所述的终端，其特征在于，所述配置信息包括小区配置及所述信号最强的波束的标识，或者，所述配置信息包括所述信号最强的波束的波束配置及所述信号最强的波束的标识；所述处理器具体用于：
    通过所述收发器接收所述信号最强的波束上的同步信号或者广播信号；所述同步信号或者广播信号携带所述最强的波束的标识。
  16. 如权利要求15所述的终端，其特征在于，
    所述处理器还用于，通过所述收发器从第二接入设备接收所述小区配置或者所述波束配置；
    或者，
    所述广播信号用于广播所述小区配置或者所述波束配置。
  17. 一种第一接入设备，其特征在于，所述第一接入设备包括处理器及收发器；所述处理器具体用于：
    通过所述收发器在多个波束上向终端发送多个信号；其中，所述多个波束是由波束成形方式生成的；
    通过所述收发器接收所述终端发送的信号最强的波束的前导信 号；
    根据所述前导信号，识别所述终端接入所述第一接入设备提供的网络的波束建立与所述终端之间的无线资源控制RRC连接。
  18. 如权利要求17所述的第一接入设备，其特征在于，所述处理器具体用于：
    通过所述收发器在所述多个波束上向所述终端发送广播信号；所述广播信号用于广播第一接入设备的波束配置；
    根据所述前导信号及所述波束配置，识别所述终端接入所述第一接入设备提供的网络的波束建立所述RRC连接。
  19. 如权利要求18所述的第一接入设备，其特征在于，所述处理器还体用于：
    通过所述收发器在所述多个波束上向所述终端发送同步信号。
  20. 如权利要求17所述的第一接入设备，其特征在于，所述处理器具体用于：
    通过所述收发器在所述多个波束上向所述终端发送同步信号或者广播信号；所述同步信号或者广播信号携带每个波束的标识。
  21. 如权利要求20所述的第一接入设备，其特征在于，所述前导信号携带所述终端确定的信号最强的波束的标识。
  22. 如权利要求20或21所述的第一接入设备，其特征在于，
    所述处理器还用于，通过所述收发器向第二接入设备向所述终端发送小区配置或者第一接入设备的波束配置；
    或者，
    所述广播信号用于广播所述小区配置或者所述波束配置。
  23. 一种随机接入系统，其特征在于，包括：
    至少一个如权利要求12-16任一项所述的终端；
    至少一个如权利要求17-22任一项所述的第一接入设备。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11057863B2 (en) 2016-09-28 2021-07-06 Kddi Corporation Terminal device and network device for exchanging information on selected beam

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109314549B (zh) * 2016-09-29 2020-08-25 Oppo广东移动通信有限公司 信号的传输方法及装置
US11357050B2 (en) * 2018-09-24 2022-06-07 Nxp Usa, Inc. Optimal beamforming in millimeter-wave cellular networks using multiple random access preambles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104956606A (zh) * 2013-01-25 2015-09-30 交互数字专利控股公司 用于垂直波束成形的方法和设备
WO2015166840A1 (ja) * 2014-04-30 2015-11-05 株式会社Ｎｔｔドコモ ユーザ装置、基地局、通信アクセス方法、及び通信方法
CN105379357A (zh) * 2013-03-15 2016-03-02 高通股份有限公司 在lte中采用波束成形来实现改善的随机接入规程
CN106358312A (zh) * 2015-07-17 2017-01-25 北京信威通信技术股份有限公司 一种多波束随机接入方法
CN106358216A (zh) * 2015-07-17 2017-01-25 北京信威通信技术股份有限公司 一种多波束随机接入方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101995798B1 (ko) * 2012-07-03 2019-07-03 삼성전자주식회사 빔포밍을 사용하는 통신 시스템의 랜덤 억세스 장치 및 방법
CN104796979B (zh) * 2014-12-11 2019-10-01 北京邮电大学 调整随机接入序列的方法及用户终端
US11006421B2 (en) * 2015-01-26 2021-05-11 Asustek Computer Inc. Method and apparatus for improving beam finding in a wireless communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104956606A (zh) * 2013-01-25 2015-09-30 交互数字专利控股公司 用于垂直波束成形的方法和设备
CN105379357A (zh) * 2013-03-15 2016-03-02 高通股份有限公司 在lte中采用波束成形来实现改善的随机接入规程
WO2015166840A1 (ja) * 2014-04-30 2015-11-05 株式会社Ｎｔｔドコモ ユーザ装置、基地局、通信アクセス方法、及び通信方法
CN106358312A (zh) * 2015-07-17 2017-01-25 北京信威通信技术股份有限公司 一种多波束随机接入方法
CN106358216A (zh) * 2015-07-17 2017-01-25 北京信威通信技术股份有限公司 一种多波束随机接入方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11057863B2 (en) 2016-09-28 2021-07-06 Kddi Corporation Terminal device and network device for exchanging information on selected beam
US11844046B2 (en) 2016-09-28 2023-12-12 Kddi Corporation Terminal device, network device for exchanging information on selected beam

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EP3477984B1 (en) 2021-04-14
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