WO2018102966A1 - Method for random access, network device, and terminal device - Google Patents

Method for random access, network device, and terminal device Download PDF

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Publication number
WO2018102966A1
WO2018102966A1 PCT/CN2016/108587 CN2016108587W WO2018102966A1 WO 2018102966 A1 WO2018102966 A1 WO 2018102966A1 CN 2016108587 W CN2016108587 W CN 2016108587W WO 2018102966 A1 WO2018102966 A1 WO 2018102966A1
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Prior art keywords
random access
request message
access request
information
occupied
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PCT/CN2016/108587
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French (fr)
Chinese (zh)
Inventor
唐海
Original Assignee
广东欧珀移动通信有限公司
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Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/108587 priority Critical patent/WO2018102966A1/en
Priority to CN201680088658.XA priority patent/CN109644503B/en
Priority to TW106141982A priority patent/TWI687120B/en
Publication of WO2018102966A1 publication Critical patent/WO2018102966A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and, more particularly, to a method, a network device, and a terminal device for random access.
  • the network device when the network device receives the random access request message sent by the terminal device, the network device sends the physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH).
  • a Random Access Response (RAR) message where the random access request message carries a random access preamble.
  • the RAR message carries an index of a random access preamble, time adjustment information for uplink synchronization, initial uplink resource allocation (for transmitting subsequent msg3) information, and a temporary cell radio network temporary identifier (Cell-Radio Network Temporary) Identifier, C-RNTI).
  • C-RNTI Cell-Radio Network Temporary
  • the terminal device After receiving the random access request message, the terminal device needs to use a Random Access-Radio Network Temporary Identifier (RA-RNTI) to monitor the Physical Downlink Control Channel (PDCCH) for receiving. Belong to your own RAR message. If the random access preamble of the RAR message received by the terminal device is the same as the random access preamble sent by the terminal device, the terminal device determines that the RAR message belongs to itself, and performs corresponding operations according to the information carried in the RAR message.
  • RA-RNTI Random Access-Radio Network Temporary Identifier
  • PDCCH Physical Downlink Control Channel
  • the embodiments of the present invention provide a method, a network device, and a terminal device for random access.
  • the method has high compatibility, and is beneficial for the terminal device to accurately determine the RAR message that belongs to itself.
  • the first aspect provides a method for random access, where the method includes: receiving, by a network device, a random access request message sent by a first terminal device, where the random access request message carries a random access preamble; the network Determining, by the device, a random access radio network temporary identifier RA-RNTI according to the random access request message; the network device sending a random access response RAR message according to the RA-RNTI,
  • the RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, and the preamble information and the indication information are used to receive the first one of the at least one terminal device of the RAR message.
  • the terminal device determines that the RAR message belongs to the first terminal device.
  • the first terminal device determines the RAR message that belongs to itself according to the indication information and the preamble information.
  • the method has high compatibility, and is advantageous for the first terminal device to accurately determine the RAR message that belongs to itself, so that the first terminal device can perform the random access process efficiently.
  • the determining, by the network device, the RA-RNTI according to the random access request message the network device determining, according to the first resource information of the resource occupied by the random access request message, the RA-RNTI
  • the indication information includes: second resource information of the resource occupied by the random access request message, information about a function value of the second resource information of the resource occupied by the random access request message, and the random access request At least one of the information carried by the message other than the random preamble, wherein the first resource information and the second resource information are different.
  • the indication information may include multiple types of information, which is flexible, so that the terminal device can efficiently determine the RAR message belonging to itself according to the indication information.
  • the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message
  • the second resource information is used to indicate a time domain resource that is occupied by the random access request message
  • the network device and the first terminal device may be configured according to the random access request.
  • the first resource information of the frequency domain resource occupied by the message determines the RA-RNTI
  • the second resource information of the time domain resource occupied by the random access request message is sent to the first terminal device by using the RAR message, so that the first terminal device can obtain the RA.
  • the complexity of the RNTI while enabling the first terminal device to accurately determine its own RAR message.
  • the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate that the random access request message is occupied.
  • the time domain resource, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  • the first resource information indicates the time domain resource and the frequency domain resource, but the granularity of the time domain resource indicated by the first resource information is large, and the first terminal device may be reduced.
  • the complexity of the RA-RNTI, the granularity of the time domain resource indicated by the second resource is small, and the first terminal device can accurately determine the RAR message belonging to itself.
  • the scheme can balance the complexity of receiving the RAR message by the terminal device and the determined number of times the terminal device determines the RAR message belonging to itself.
  • the second resource information is specifically used to indicate a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message. At least one of them.
  • the second resource information may indicate a starting location and/or an ending location, and the scheme has high flexibility and high compatibility and applicability.
  • the second resource information is specifically used to indicate at least one of the following information: a number of a first subframe occupied by the random access request message; the random access request message is occupied The number of the first time slot or the first mini time slot; the number of the last subframe occupied by the random access request message; the last time slot occupied by the random access request message or the last mini time slot Numbering.
  • the information of the function value is used to indicate at least one of the following information: a number of the first subframe occupied by the RAR message and a first one occupied by the random access request message
  • the difference between the numbers of the subframes; the difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the RAR message occupation The difference between the number of the first minislot and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message is occupied by the random access request message
  • the difference between the numbers of the last subframe; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the RAR message occupation The difference between the number of the last minislot and the number of the last minislot occupied by the random access request message.
  • the information that is other than the random preamble carried by the random access request message includes location information of the first terminal device, identifier information of the first terminal device, and the random access. At least one of the transmission timestamps of the request message.
  • the solution not only enables the first terminal device to accurately determine the RAR message that belongs to itself, but further, the solution can fuse the msg2 message and the msg3 in the LTE system, which can save signaling overhead and improve the efficiency of random access of the terminal device.
  • the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
  • the indication information can be flexibly carried in the RAR message with high compatibility.
  • a second aspect provides a method for random access, where the method includes: a first terminal device sends a random access request message to a network device, where the random access request message carries a random access preamble; the first terminal The device determines, according to the random access request message, a random access radio network temporary identifier RA-RNTI, and the first terminal device receives, according to the RA-RNTI, a random access response RAR message sent by the network device, where the RAR message carries preamble information. And the indication information; the first terminal device determines, according to the random access preamble, the preamble information, and the indication information that are included in the random access request message, whether the RAR message belongs to the first terminal device.
  • the first terminal device determines the RAR message that belongs to itself according to the indication information and the preamble information.
  • the accuracy of determining the RAR message belonging to the first terminal device by itself can be improved, so that the terminal device can perform random access efficiently.
  • the first terminal device receives a random access response (RAR) message sent by the network device, and includes: the resource occupied by the first terminal device according to the random access request message.
  • the first resource information determines the RA-RNTI; if the random access preamble indicated by the preamble information is the same as the random access preamble carried in the random access request message, and the indication information includes: the random access request The second resource information of the resource occupied by the message, the second resource information of the resource occupied by the random access request message, the function value of the variable, and the random access preamble carried by the random access request message
  • the method further includes: the first terminal device determines that the RAR message belongs to the first terminal device; wherein the first resource information and the second resource information are different.
  • the first terminal device determines the RAR message belonging to itself according to the preamble information and the indication information, so that the first terminal device can efficiently determine the RAR message belonging to itself.
  • the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message
  • the second resource information is used to indicate a time domain resource that is occupied by the random access request message
  • the first terminal device can be occupied according to the random access request message.
  • the first resource information of the frequency domain resource determines the RA-RNTI
  • the second resource information of the time domain resource occupied by the random access request message is sent to the first terminal by using the RAR message.
  • the device can reduce the complexity of acquiring the RA-RNTI by the first terminal device, and can improve the accuracy of the first terminal device determining the RAR message that belongs to itself.
  • the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate that the random access request message is occupied.
  • the time domain resource, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  • the first resource information indicates the time domain resource and the frequency domain resource, but the granularity of the time domain resource indicated by the first resource information is large, which can reduce the complexity of acquiring the RA-RNTI by the first terminal device, and can improve the complexity.
  • the scheme can balance the complexity of receiving the RAR message by the terminal device and the determined number of times the terminal device determines the RAR message belonging to itself.
  • the second resource information is specifically used to indicate a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message. At least one of them.
  • the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; the random access request message is occupied The number of the first time slot or the first mini time slot; the number of the last subframe occupied by the random access request message; the last time slot occupied by the random access request message or the last mini time slot Numbering.
  • the information of the function value is used to indicate at least one of the following information: a number of the first subframe occupied by the RAR message and a first one occupied by the random access request message The difference between the numbers of the subframes; the difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the RAR message occupation The difference between the number of the first minislot and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message is occupied by the random access request message The difference between the numbers of the last subframe; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the RAR message occupation The difference between the number of the last minislot and the number of the last minislot occupied by the random access request message.
  • the information that is included in the random access request message except the random preamble includes location information of the first terminal device, and an identifier of the first terminal device. And at least one of a transmission time stamp of the random access request message.
  • the solution can not only improve the accuracy of the terminal device to determine the RAR message of the terminal.
  • the solution can combine the msg2 message and the msg3 in the LTE system, which can save signaling overhead and improve the efficiency of random access of the terminal device.
  • the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
  • the indication information can be flexibly carried in the RAR message with high compatibility.
  • the method further includes: the first terminal device determines that the RAR message does not belong to the first terminal device, where the indication information does not match the random access request message, and includes: the resource information included in the indication information and the random connection
  • the second resource information of the resource occupied by the incoming request message is different; and/or the information of the function value included in the indication information is different from the information of the function value of the second resource information of the resource occupied by the random access request message;
  • the location information included in the indication information is different from the location information of the first terminal device carried in the random access request message; and/or the identifier information included in the indication information and the first part carried in the random access request message
  • the identification information of a terminal device is different; and/or the sending timestamp included in the indication information and the sending time carried by the random access request message
  • a network device for performing the method of the first aspect or any possible implementation of the first aspect.
  • the network device may comprise modules and/or units for performing the method of any of the first aspect or the first aspect of the first aspect described above.
  • a terminal device for performing the method in any of the possible implementations of the second aspect or the second aspect.
  • the terminal device may comprise modules and/or units for performing the method of any of the above-described second or second aspects of the second aspect.
  • a fifth aspect provides a network device, including: a transceiver, a memory, and a processor, the transceiver for transmitting and receiving signals, the memory for storing instructions, the processor for executing instructions stored by the memory, and the memory Execution of the instructions stored in the processor causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.
  • a sixth aspect provides a terminal device, including: a transceiver, a memory, and a processor, the transceiver for transmitting and receiving signals, the memory for storing instructions, and the processor for performing the storage
  • a computer storage medium having stored therein program code for indicating execution of instructions in any of the first aspect or any of the possible implementations of the first aspect.
  • a computer storage medium having stored therein program code for indicating execution of instructions in any of the possible implementations of the second aspect or the second aspect above.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute code in the memory, and when the code is executed, the processor can implement the foregoing The first aspect and the methods in various implementations.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute code in the memory, and when the code is executed, the processor can implement the foregoing
  • the second aspect and the methods in various implementations.
  • the RAR message may carry the indication information and the preamble information, where the indication information may include the second resource information of the resource occupied by the access request message, and the random access request message
  • the second resource information of the occupied resource is at least one of the function value of the variable and the information other than the random preamble carried by the random access request message, so that the first terminal device can according to the indication information.
  • the preamble information accurately determines the RAR message belonging to itself.
  • FIG. 1 is a schematic diagram of a wireless communication system suitable for use in an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a method for random access according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a medium access control subhead MAC subheader suitable for use in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an example of a MAC RAR applicable to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another example of a MAC RAR applicable to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of an example of a network device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an example of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of another example of a network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of another example of a terminal device according to an embodiment of the present invention.
  • Figure 10 is a schematic block diagram of a system chip in accordance with an embodiment of the present invention.
  • FIG. 1 illustrates a wireless communication system 100 suitable for use with embodiments of the present invention.
  • the wireless communication system 100 can include a network device 100.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device, such as the first terminal device 120 and the second terminal device 130, located within the coverage of the network device 110.
  • the terminal device can be mobile or fixed.
  • the terminal device may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include within the coverage of each network device.
  • Other embodiments of the present invention are not limited in this embodiment of the present invention.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • 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 network device Before sending the RAR message, the network device first determines the RA-RNTI according to the received random access request message. Accordingly, the terminal device determines the RA-RNTI according to the transmitted random access request message. In other words, the network device and the terminal device respectively determine the RA-RNTI corresponding to the random access request message. First, the manner of determining the RA-RNTI in the prior art will be introduced.
  • the network device and the terminal device determine the RA-RNTI according to the number of the first subframe occupied by the random access request message and the number of the frequency domain location occupied by the random access request message in the first subframe.
  • the network device and the terminal device may determine the RA-RNTI according to formula (1).
  • RA-RNTI 1+t_id+10f_id(1)
  • the t_id is the number of the first subframe occupied by the random access request message
  • the f_id is the number of the frequency domain location occupied by the random access request message in the first subframe.
  • the network device After receiving the random access request message, the network device determines the RA-RNTI according to formula (1), and sends a RAR message according to the RA-RNTI. Accordingly, the terminal device determines the RA-RNTI, and listens to the RA-RNTI according to the RA-RNTI. Your own RAR message. This method increases the complexity of the terminal device acquiring the RAR message.
  • the terminal device may send a random access request message to the network device through different beams.
  • each beam corresponds to The information of the time domain resource is different (for example, the corresponding first subframe has a different number).
  • the terminal device needs to try multiple RA-RNTIs when listening to its own RAR message, which causes the terminal device to acquire RARs with high complexity.
  • the terminal device may send multiple random access request messages (multiple random access request messages) on the same time domain resource by using frequency division multiplexing.
  • the random access preambles carried may be the same or different).
  • the terminal device also needs to try multiple RA-RNTIs when listening to the RAR message belonging to the first terminal device, which causes the terminal device to acquire the RAR message with high complexity.
  • the RA-RNTI may be determined in the following manner.
  • the RA-RNTI is determined according to the first resource information of the resource occupied by the random access request message.
  • the first resource information is used to indicate a frequency domain resource or a time domain resource occupied by the random access request message.
  • the network device and the terminal device can determine the RA-RNTI according to formula (2).
  • t_id is the number of the first subframe occupied by the random access request message
  • A is an adjustment parameter
  • the network device and the terminal device can determine the RA-RNTI according to formula (3).
  • RA-RNTI 10f_id+B(3)
  • the f_id is a frequency domain location number occupied by the random access request message in the first subframe occupied by the random access request message, and B is an adjustment parameter.
  • the manner of determining the RA-RNTI can reduce the complexity of the RAR message obtained by the terminal device.
  • the RAR message in the prior art is determined to have its own RAR message.
  • the combination of the methods is easy to cause the terminal device to judge the error.
  • the network device and the terminal device determine the RA-RNTI according to the first resource information, if both the first terminal device and the second terminal device are The random access request message is sent by the frequency domain resource A, and the random access request message sent by the first terminal device and the second terminal device includes a random access preamble B, and the network device first randomly connects according to the second terminal device.
  • Incoming request message to send RAR message (marked as a second RAR message, the first terminal device and the second terminal device both listen to the second RAR message, where the second RAR message carries information of the random access preamble B (for example, an index of the random access preamble B) .
  • the first terminal device may mistake the second RAR message as its own RAR message. And performing related operations by using the information in the second RAR message, causing the first terminal device to process an error.
  • the terminal device may easily cause an error.
  • the RA-RNTI is determined according to the first resource information of the resource occupied by the random access request message.
  • the first resource information is used to indicate the frequency domain resource and the time domain resource that are occupied by the random access request message, and the size of the time domain resource indicated by the first resource information in the second mode is larger.
  • the network device and the terminal device determine the RA-RNTI according to the information of the radio frame occupied by the random access request message (for example, the number of the first radio frame occupied).
  • the method is capable of balancing the complexity of receiving RAR messages by the terminal device and the number of times the terminal device determines its own RAR.
  • the terminal device may easily make an error. For details, refer to the above. The related descriptions are not repeated here for brevity.
  • a plurality of terminal devices occupy the same subframe and the frequency domain resource to send the same random access preamble, and after receiving the RAR message of a certain terminal device, the multiple terminal devices perform random connection according to the RAR message. Entering the preamble, the RAR message is considered to belong to itself, and the contention process is performed according to the RAR message. Since the terminal device does not correctly identify the RAR message that belongs to itself, the terminal device may cause meaningless competition.
  • an embodiment of the present invention provides a method for random access.
  • the RAR message sent by the network device includes preamble information and indication information, and the terminal device may determine whether the received RAR message is based on the preamble information and the indication information. belong to myself.
  • This method has high compatibility. It is advantageous for the terminal device to accurately determine the RAR message belonging to itself.
  • the method for random access according to an embodiment of the present invention is described in detail below.
  • FIG. 2 shows a schematic flow diagram of a method 200 for random access, in accordance with an embodiment of the present invention, as described in terms of device interaction.
  • the method 200 can be applied to a communication system including a network device and at least one terminal device.
  • the communication system may be the wireless communication system 100 shown in FIG. 1.
  • the method according to an embodiment of the present invention is described in detail by taking the interaction between the network device and the first terminal device (and the second terminal device) as an example.
  • the first terminal device is any one of the at least one terminal device, and the “first” is only used to distinguish the description, and should not be construed as limiting the embodiment of the present invention.
  • the second terminal device should not constitute any limitation on the embodiments of the present invention.
  • the method 200 includes:
  • the first terminal device sends a random access request message to the network device, and the network device receives the random access request message sent by the first terminal device, where the random access request message includes a random access preamble.
  • the first terminal device may send an access request message to the network device by using multiple beams.
  • the location of the starting subframe of the different beams may be different when the terminal device sends the random access request message in a multi-beam manner.
  • the first terminal device after the first terminal device sends the random access request message through one beam, it waits for the RAR message sent by the network device, and if it does not wait for the RAR message sent by the network device, uses another beam to send the random Accessing the request message, and waiting for the RAR message sent by the network device, if receiving the RAR message sent by the network device, stopping sending the random access request message; otherwise, selecting the beam to send the random access request message again.
  • the network device determines the RA-RNTI according to the random access request message, and accordingly, the first terminal device determines the RA-RNTI according to the random access request message;
  • the network device sends a RAR message according to the RA-RNTI.
  • the first terminal device receives the RAR message sent by the network device according to the RA-RNTI, where the RAR message includes indication information and preamble information, where the preamble information is used. Indicating the random access preamble;
  • the network device sends the RAR message according to the RA-RNTI and the random access request message.
  • the first terminal device determines the RAR according to the indication information and the preamble information.
  • the message belongs to the first terminal device.
  • the “random access request message sent by the first terminal device” may be recorded as “first request message”, and “the random access preamble carried by the first random access request message” may be recorded as “first”.
  • the preamble “records the "RA-RNTI determined according to the first request message” as “the first RA-RNTI” and the "RAR message transmitted by the network device according to the first request message” as the "first RAR message”.
  • the first terminal device needs to determine whether the received RAR message belongs to the first terminal device.
  • the first terminal device can determine that the RAR message belongs to the first terminal device.
  • the first terminal device may determine that the RAR message does not belong to the first terminal device.
  • the RAR message not only carries the preamble information but also carries the indication information, compared with the RAR message of the random access preamble in the RAR message.
  • the terminal device determines the RAR message that belongs to the user according to the preamble information and the indication information carried in the RAR message.
  • the method has high compatibility and can be applied to multiple application scenarios, and is beneficial for the first terminal device to accurately determine the RAR that belongs to the user. Message.
  • the method 200 may further include:
  • the second terminal device sends a second random access request message to the network device.
  • the network device receives the second random access request message, and may record the second random access request message as the second request. Message";
  • the second terminal device determines the RA-RNTI according to the second request message.
  • the network device determines the RA-RNTI according to the second request message, and may record “the RA-RNTI determined according to the second request message” as “ Second RA-RNTI”;
  • the network device sends a second RAR message according to the second RA-RNTI.
  • the second terminal device determines, according to the preamble information and the indication information carried in the second RAR message, that the second RAR message is a RAR message that belongs to the user, and the second terminal device stops monitoring. Listen to your own RAR message;
  • the network device sending the second RAR message may include at least the following two situations:
  • Case 1 The first RA-RNTI and the second RA-RNTI are different, and the first terminal device cannot receive the second RAR message.
  • the first RA-RNTI is the same as the second RA-RNTI, and the first terminal device and the second terminal device may receive the second RAR message, where the first terminal device needs to be according to the indication information in the second RAR message. And the preamble information determines whether the second RAR message belongs to the first terminal device. If the first terminal device determines that the second RAR message belongs to the first terminal device, the first terminal device may process according to the second RAR message; if the first terminal device determines that the second RAR message does not belong to the first A terminal device, the first terminal device needs to continue to listen to RAR messages belonging to the first terminal device.
  • the method 200 can include:
  • the first terminal device determines, according to the preamble information and the indication information that is carried by the second RAR message, that the second RAR message does not belong to the first terminal device, and the first terminal device needs to continue to monitor the RAR message that belongs to the first terminal device, where The indication information carried by the second RAR message is different from the indication information corresponding to the first request message.
  • the indication information carried by the RAR message may include at least one of the following types of indication information:
  • the first type of indication information includes second resource information of resources occupied by the random access request message.
  • the indication information carried by the first RAR includes the second resource information of the resource occupied by the first request message
  • the indication information carried by the second RAR includes the second resource information of the resource occupied by the second request message
  • the domain types of the first resource information and the second resource information are different.
  • the first resource information is used to indicate that the random access request message occupies the frequency domain resource
  • the second resource information is used to indicate the time domain resource occupied by the random access request message. That is, the network device and the terminal device determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message, and the first resource information is used to indicate the frequency domain resource occupied by the random access request message, and the second resource information A time domain resource used to indicate that the random access request message is occupied.
  • the second resource information may be used to indicate at least one of a start location of a time domain resource occupied by the random access request message and an end location of a time domain resource occupied by the random access request message.
  • the second resource information is specifically used to indicate at least one of the following information:
  • the indication information carried by the first RAR message includes the second resource information, where the second resource information is used to indicate the number of the first subframe occupied by the first request message, and the second resource information carried by the second RAR message is used for Indicates the number of the first subframe occupied by the second request message.
  • the frequency domain resource and the time domain resource can be separated by the first type of indication information. For example, determining the RA-RNTI by using the frequency domain resource occupied by the random access request message, and determining the indication information by using the time domain resource occupied by the random access request message, the method may enable the first terminal device to accurately determine the RAR message that belongs to itself. At the same time, the method can reduce the complexity of receiving the RAR message by the first terminal device.
  • the indication information includes 1a
  • the frequency domain resources occupied by the first request message and the second request message are all A
  • the first preamble and the second preamble are both B
  • the first request message occupies the first.
  • the number of the subframe is N (N ⁇ 0)
  • the number of the first subframe occupied by the second request message is M (M ⁇ 0, and M ⁇ N)
  • the network device sends the second request message and then sends the second a RAR message
  • the second RAR message includes information and a number M of the second preamble B
  • the first terminal device and the second terminal device send the random access request message using the same frequency domain resource
  • the first terminal device and the second terminal device The terminal device can receive (listen to) the second RAR message.
  • the first terminal device determines that the second RAR message does not belong to itself, and the first terminal device continues to listen to the RAR message belonging to itself. If the first terminal device listens to the information including the first preamble B and the first RAR message of the number M, the first terminal device determines that the first RAR message belongs to the first terminal device.
  • the granularity of the resource indicated by the first resource information and the second resource information is different, and the granularity of the resource indicated by the first resource information is greater than The granularity of the resource indicated by the second resource information.
  • the first resource information is used to indicate that the random access request message (for example, the first request message) occupies a frequency domain resource and a time domain resource
  • the second resource information is used to indicate that the random access request message (first request message) is occupied.
  • the time domain resource, the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  • the granularity in the embodiment of the present invention may refer to a unit size of a resource.
  • the granularity of the radio frame is greater than the granularity of the subframe, and the granularity of the subframe is greater than the granularity of the slot.
  • the granularity can also reflect the accuracy of the time domain resource. In other words, the accuracy of the time domain resource indicated by the second resource information is higher than the accuracy of the time domain resource indicated by the first resource information.
  • the first resource information is used to indicate the information of the radio frame occupied by the random access request message
  • the second resource information is used to indicate the information of the subframe occupied by the random access request message.
  • the first resource information is used to indicate information about a subframe occupied by the random access request message
  • the second resource information is used to indicate information of a time slot (or mini slot) occupied by the random access request message.
  • the complexity of receiving the RAR message and the number of times the RAR message is received can be balanced by the second type of indication information.
  • the first terminal device may first receive a part of the RAR message according to the frequency domain resource occupied by the random access request message and the large-area time domain resource, and may reduce the complexity of receiving the RAR message and the number of times the RAR message is received, the first terminal.
  • the device determines its own RAR message (ie, the first RAR message) according to the small-grained time domain resource, which is beneficial for the first terminal device to accurately identify the RAR message that belongs to itself.
  • the first terminal device sends the first request message A, the first request message B, and the third request message C through three beams, and the first request message A, the first request message B, and the third request message C occupy the same frequency.
  • a domain resource and a radio frame, and the first subframes occupied by the three first request messages are numbered 1, 2, and 3, respectively, and the three first request messages correspond to the same RA-RNTI, and the first terminal device may According to the RA-RNTI receiving any one of the three first request messages (without attempting multiple RA-RNTIs), the complexity of receiving the RAR message can be reduced.
  • the second resource information for accurately indicating the time domain resource of the first request message is carried by the first RAR message, which is advantageous for the first terminal device to accurately identify the RAR message belonging to itself.
  • the frequency domain resource and the starting subframe used by the random access request message are still determined.
  • the RA-RNTI, the indication information included in the first RAR message is the number of the time slot occupied by the first request message, and the method can improve the accuracy of the first terminal device determining the own RAR message, so that the first terminal device can efficiently Perform a random access process.
  • the second type of information indicating that the second resource information occupied by the random access request message is a function value of the variable.
  • the indication information carried by the first RAR includes information of a function value of the second resource information of the resource occupied by the first request message
  • the indication information carried by the second RAR includes the second resource occupied by the second request message.
  • the resource information is information of the function value of the variable.
  • the second resource information is used to indicate a time domain resource
  • the indication information may be used to indicate at least one of the following information:
  • the indication information carried by the first RAR message is used to indicate a difference between the number of the first subframe occupied by the first RAR message and the number of the first subframe occupied by the first request message
  • the second RAR message The carried indication information is used to indicate a difference between a number of the first subframe occupied by the second RAR message and a number of the first subframe occupied by the first request message.
  • the first terminal device may determine, according to the indication information in the RAR message, the information of the time domain resource occupied by the random access request message corresponding to the RAR message, and determine the information of the determined time domain resource and send the information by itself. Whether the information of the time domain resource of the random access request message is the same, if the same, determining that the RAR message belongs to itself, if different, determining the RAR cancellation The information does not belong to itself and continues to listen to its own RAR message.
  • the indication information includes 2a
  • the first request message and the second request message occupy the same frequency domain resource A
  • the first preamble and the second preamble are both B
  • the first subframe occupied by the first request message The number is N (N ⁇ 0)
  • the number of the first subframe occupied by the second request message is M (M ⁇ 0, and M ⁇ N)
  • the network device receives the second request message at the Kth (N ⁇ K).
  • the second RAR message carries the information of the second preamble B and the difference KM
  • the first terminal device determines, according to the difference KM, the random connection corresponding to the second RAR message.
  • the number of the first subframe occupied by the incoming request message is M, and the first terminal device may determine that the second RAR message does not belong to the first terminal device. If the first RAR message is received by the first terminal device, the first RAR message carries the information of the first preamble B and the difference KN, and the first terminal device determines, according to the difference KN, the random access corresponding to the second RAR message.
  • the number of the first subframe occupied by the request message is N, and the first terminal device determines that the random access request message corresponding to the first RAR message is the same as the preamble information and the occupied resource information of the first request message. The first terminal device determines that the first RAR message belongs to the first terminal device.
  • the third type of indication information includes information other than the random access preamble carried by the random access request message.
  • the third type of indication information may include at least one of the following information:
  • the first request message carries the location information of the first terminal device
  • the first RAR carries the location information of the first terminal device
  • the second request message carries the location information of the second terminal device
  • the second RAR carries the second terminal device. Location information.
  • the first request message carries the identifier information of the first terminal device
  • the first RAR carries the identifier information of the first terminal device
  • the second request message carries the identifier information of the second terminal device
  • the second RAR carries the second terminal device. Identification information.
  • the timestamp of the random access request message For example, the first RAR message carries the sending timestamp of the first request message, and the second RAR message carries the sending timestamp of the second request message.
  • the sending timestamp may include a sequence of characters, which is used to identify a sending time of the random access request message, and the sending timestamp may also be a specific sending time (for example, 12:15 Beijing time) Minutes 50 seconds).
  • the transmission timestamp may also be part of the information at the time of transmission (eg, 50s).
  • the msg2 message and the msg3 in the existing LTE system may be fused, which can save signaling overhead and improve the efficiency of random access of the terminal device.
  • the first request message sent by the first terminal device carries the first preamble and the identifier information of the first terminal device, and if the RAR message received by the first terminal device includes the first preamble and the identifier information, the first The terminal device may determine that the RAR message belongs to the first terminal device, and further, the first terminal device may further determine that the first terminal device competes successfully in the random access process.
  • the first terminal device determines whether the indication information and the preamble information carried in the RAR message match the random request message sent by the first terminal device. If the matching, the first terminal device determines that the RAR message belongs to itself. A mismatch determines that the RAR message does not belong to itself.
  • the preamble information carried in the RAR message For example, if the random access preamble indicated by the preamble information carried in the RAR message is the same as the first preamble carried in the first request message, the preamble information matches the first request message. Otherwise, it does not match.
  • the indication information includes the resource information
  • the resource information is the same as the second resource information of the resource occupied by the first request message, or the indication information includes the second resource information of the resource occupied by the first request message
  • the resource information included in the indication information is the number of the first subframe occupied by the first request message, and the resource information included in the indication information matches the first request message, and vice versa.
  • the RAR message carries the information of the function value
  • the information of the function value is the same as the information of the function value of the variable of the second resource information of the resource occupied by the first request message (or the indication information includes the first request message)
  • the second resource information of the occupied resource is information of a function value of the variable.
  • the information of the function value included in the indication information is the same as the information of the function value determined by the first terminal device according to the first request message and the received RAR message.
  • the information of the function value included in the indication information matches the first request message, and vice versa.
  • the indication information includes location information
  • the location information is the same as the location information of the first terminal device carried by the first request message (or the indication information includes location information of the first terminal device)
  • the indication information includes The location information matches the first request message, and vice versa.
  • the indication information includes the identifier information
  • the identifier information is carried by the first request message
  • the identifier information of the first terminal device is the same (or the indication information includes the identifier information of the first terminal device), and the indication information includes the identifier information that matches the first request message, and vice versa.
  • the indication information includes a sending timestamp
  • the sending timestamp is the same as the sending timestamp of the first terminal device carried by the first request message
  • the indication information includes a sending timestamp of the first request message
  • the indication information includes that the sending timestamp matches the first request message, and vice versa.
  • the terminal device determines that the RAR message does not belong to itself.
  • the indication information may be carried in a MAC subheader of the RAR message.
  • 3 is a schematic diagram of a MAC subheader suitable for use in an embodiment of the present invention.
  • the MAC subheader of the RAR message includes the following fields:
  • Random access preamble ID (RAPID);
  • the indication information may be carried in one of the fields included in the MAC subheader.
  • the indication information may be carried in a MAC RAR of the RAR message.
  • 4 is a schematic diagram of an example of a MAC RAR applicable to an embodiment of the present invention. This figure 4 is mainly for the MAC RAR of a normal user.
  • FIG. 5 is a schematic diagram of another example of a MAC RAR applicable to an embodiment of the present invention. This FIG. 5 is mainly for the MAC RAR of the coverage enhanced type user. As shown in FIG. 4 and FIG. 5, the MAC RAR includes at least the following fields:
  • the indication information may be carried in one of the fields included in the MCA RAR.
  • the network device may further add an extension field in the MAC RAR, where the extension field is specifically used to carry the indication information.
  • the RAR message carries the indication information and the preamble information in the RID message according to the index of the random access preamble carried in the RAR message. It has high compatibility and can be applied to multiple application scenarios, which is beneficial for the terminal device to accurately determine its own RAR message.
  • FIG. 6 is a schematic block diagram of a network device 300 in accordance with an embodiment of the present invention. As shown in FIG. 6, a network device 300 includes:
  • the receiving unit 310 is configured to receive a random access request message sent by the first terminal device, where the random access request message carries a random access preamble;
  • the processing unit 320 is configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
  • the sending unit 330 is configured to send, according to the RA-RNTI, a random access response RAR message, where the RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, the preamble information, and the The first terminal device in the at least one terminal device that receives the RAR message indicates that the RAR message belongs to the first terminal device.
  • the processing unit 320 is configured to: determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message; the indication information includes: a second resource occupied by the random access request message The resource information, the second resource information of the resource occupied by the random access request message, the information of the function value of the variable, and the at least one of the information other than the random preamble carried by the random access request message, The first resource information is different from the second resource information.
  • the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message
  • the second resource information is used to indicate a time domain resource occupied by the random access request message
  • the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message
  • the second resource information is used to indicate a time domain resource occupied by the random access request message
  • the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  • the second resource information is specifically used to indicate at least one of a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message.
  • the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; and a first time slot occupied by the random access request message Or the number of the first minislot; the number of the last subframe occupied by the random access request message; the last slot or the last minislot occupied by the random access request message number.
  • the information of the function value is used to indicate at least one of the following information: between the number of the first subframe occupied by the RAR message and the number of the first subframe occupied by the random access request message The difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the first minislot occupied by the RAR message The difference between the number and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message and the last subframe occupied by the random access request message The difference between the numbers; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the last minislot occupied by the RAR message. The difference between the number and the number of the last minislot occupied by the random access request message.
  • the information that is included in the random access request message except the random preamble includes location information of the first terminal device, identifier information of the first terminal device, and a sending timestamp of the random access request message. At least one of them.
  • the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
  • the network device 300 can correspond to a network device in the method 200 for random access in accordance with an embodiment of the present invention, which can include a unit for performing the method performed by the network device in the above method.
  • each unit in the network device 300 and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing method, and are not described herein again for brevity.
  • FIG. 7 is a schematic block diagram of a terminal device 400 according to an embodiment of the present invention. As shown in FIG. 7, a terminal device is a first terminal device, and the terminal device includes:
  • the sending unit 410 is configured to send a random access request message to the network device, where the random access request message carries a random access preamble;
  • the processing unit 420 is configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
  • the receiving unit 430 is configured to receive, according to the RA-RNTI, a random access response (RAR) message sent by the network device, where the RAR message carries preamble information and indication information;
  • RAR random access response
  • the processing unit 420 is further configured to: determine, according to the random access preamble, the preamble information, and the indication information carried in the random access request message, whether the RAR message belongs to the first terminal device.
  • the processing unit 420 is specifically configured to: according to the resource occupied by the random access request message.
  • the resource information determines the RA-RNTI; if the random access preamble indicated by the preamble information is the same as the random access preamble carried by the random access request message, and the indication information includes: the random access request message is occupied
  • the processing unit 420 is at least one of the second resource information of the resource, the information of the function value with the second resource information as a variable, and the information other than the random preamble carried by the random access request message.
  • the method further includes: determining that the RAR message belongs to the first terminal device; wherein the first resource information and the second resource information are different.
  • the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message
  • the second resource information is used to indicate a time domain resource occupied by the random access request message
  • the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message
  • the second resource information is used to indicate a time domain resource occupied by the random access request message
  • the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  • the second resource information is specifically used to indicate at least one of a start location of the time domain resource occupied by the random access request message and an end location of the frequency domain resource occupied by the random access request message.
  • the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; and a first time slot occupied by the random access request message Or the number of the first minislot; the number of the last subframe occupied by the random access request message; the number of the last slot or the last minislot occupied by the random access request message.
  • the information of the function value is used to indicate at least one of the following information: between the number of the first subframe occupied by the RAR message and the number of the first subframe occupied by the random access request message The difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the first minislot occupied by the RAR message The difference between the number and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message and the last subframe occupied by the random access request message The difference between the numbers; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the last minislot occupied by the RAR message. The difference between the number and the number of the last minislot occupied by the random access request message.
  • the information that is included in the random access request message except the random preamble includes the At least one of location information of the first terminal device, identification information of the first terminal device, and a transmission timestamp of the random access request message.
  • the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
  • the method further includes: The first terminal device determines that the RAR message does not belong to the first terminal device, where the indication information does not match the random access request message, and includes: the resource information included in the indication information and the resource occupied by the random access request message
  • the second resource information is different; and/or the information of the function value included in the indication information is different from the information of the function value of the second resource information of the resource occupied by the random access request message; and/or the indication information
  • the location information is different from the location information of the first terminal device carried in the random access request message; and/or the identifier information included in the indication information and the identifier information of the first terminal device carried in the random access request message Different; and/or the indication information includes a transmission timestamp that is different from the transmission timestamp carried by the random access request message.
  • the terminal device 400 may correspond to a first terminal device in the method 200 for random access according to an embodiment of the present invention, and the terminal device 400 may include a method for performing the first terminal device execution in the above method. Unit.
  • each unit in the terminal device and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing method, and are not described herein again for brevity.
  • FIG. 8 is a schematic block diagram of a network device 500 in accordance with an embodiment of the present invention. As shown in FIG. 8, the network device 500 includes a transceiver 510 and a processor 520.
  • the transceiver 510 is configured to: receive a random access request message sent by the first terminal device, where the random access request message carries a random access preamble; and the processor 520 is configured to: determine, according to the random access request message, the random access
  • the radio network temporary identifier RA-RNTI is further configured to: send a random access response RAR message according to the RA-RNTI, where the RAR message carries preamble information and indication information, where the preamble information and the indication information are used
  • the first terminal device in the at least one terminal device that receives the RAR message determines that the RAR message is an RAR message belonging to the first terminal device, and the preamble information is further used to indicate the random access preamble.
  • the network device 500 can correspond to a network device in the method 200 for random access in accordance with an embodiment of the present invention, which can include a physical unit for performing the method performed by the network device in the above method. And, each physical unit in the network device and the other operations described above The functions and/or functions are respectively for the corresponding processes of the above methods, and are not described herein for brevity.
  • FIG. 9 is a schematic block diagram of a terminal device 600 according to an embodiment of the present invention.
  • the terminal device 600 is a first terminal device.
  • the terminal device 600 includes a transceiver 610 and a processor 620.
  • the transceiver 610 is configured to: send a random access request message to the network device, where the random access request message carries a random access preamble; the processor 620 is configured to: determine, according to the random access request message, a random access wireless network temporary identifier
  • the RA-RNTI is further configured to: receive, according to the RA-RNTI, a random access response (RAR) message sent by the network device according to the random access request message, where the RAR message carries preamble information and indication information, the preamble The information is used to indicate the random access preamble;
  • the processor 630 is further configured to: determine, according to the preamble information and the indication information, the RAR message as an RAR message belonging to the first terminal device
  • the terminal device 600 may correspond to a first terminal device in the method 200 for random access according to an embodiment of the present invention, and the terminal device 600 may include a method for performing execution by the first terminal device in the above method.
  • Physical unit In addition, the physical units in the terminal device and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing methods, and are not described herein for brevity.
  • FIG. 10 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 700 of FIG. 10 includes an input interface 701, an output interface 702, a processor 703, and a memory 704 connected by a bus 705 for executing code in the memory 704.
  • the processor 703 when the code is executed, the processor 703 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 703 implements the method performed by the first device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a central processing unit (CPU), the processor may be another general-purpose processor, a digital signal processor (DSP), or an application specific integrated circuit (ASIC). ), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • the methods and steps disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software in the decoding processor.
  • the software can be located in a random storage medium, such as a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in embodiments of the invention may be a volatile memory or a non-volatile memory, or may include both volatile and nonvolatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • Volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM static random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • ESDRAM enhancement Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM Direct Memory Bus Random Memory
  • bus system may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus.
  • bus systems may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus.
  • various buses are labeled as bus systems in the figure.
  • Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are portable electronic devices that include a plurality of applications When executed, the portable electronic device can be enabled to perform the method of an embodiment of the present invention.
  • 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 may be Integrate 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 in an electrical, mechanical or other form.
  • 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 embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method in accordance with 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. .

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Abstract

Embodiments of the present invention provide a method for random access, a network device, and a terminal device. The method has high compatibility and is favorable for a terminal device to accurately determine a random access response (RAR) belonging to the terminal device itself. The method comprises: a network device receives a random access request message sent by a first terminal device, the random access request message carrying a random access preamble; the network device determines a random access radio network temporary identifier (RA-RNTI) according to the random access request message; the network device sends an RAR message according to the RA-RNTI, the RAR message carrying preamble information and indication information, the preamble information being used for indicating the random access preamble, and the preamble information and the indication information being used for the first terminal device in at least one terminal device receiving the RAR message to determine that the RAR message belongs to the first terminal device.

Description

用于随机接入的方法、网络设备和终端设备Method, network device and terminal device for random access 技术领域Technical field
本发明实施例涉及通信技术领域,并且更具体地,涉及用于随机接入的方法、网络设备和终端设备。Embodiments of the present invention relate to the field of communications technologies, and, more particularly, to a method, a network device, and a terminal device for random access.
背景技术Background technique
在现有的长期演进(Long Term Evolution,LTE)系统中,当网络设备接收到终端设备发送的随机接入请求消息时,网络设备将在物理下行共享信道(Physical Downlink Shared CHannel,PDSCH)上发送随机接入响应RAR(Random Access Response,RAR)消息,其中,该随机接入请求消息携带随机接入前导码。该RAR消息携带随机接入前导码的索引、用于上行同步的时间调整信息、初始的上行资源分配(用于发送随后的msg3)信息以及一个临时的小区无线网络临时标识(Cell-Radio Network Temporary Identifier,C-RNTI)。In the existing Long Term Evolution (LTE) system, when the network device receives the random access request message sent by the terminal device, the network device sends the physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH). A Random Access Response (RAR) message, where the random access request message carries a random access preamble. The RAR message carries an index of a random access preamble, time adjustment information for uplink synchronization, initial uplink resource allocation (for transmitting subsequent msg3) information, and a temporary cell radio network temporary identifier (Cell-Radio Network Temporary) Identifier, C-RNTI).
终端设备发送随机接入请求消息后,需要使用随机接入无线网络临时标识(Random Access-Radio Network Temporary Identifier,RA-RNTI)来监听物理下行控制信道(Physical Downlink Control Channel,PDCCH)以用于接收属于自己的RAR消息。若终端设备接收的RAR消息携带的索引指示的随机接入前导码与终端设备发送的随机接入前导码相同,终端设备确定该RAR消息属于自己,并根据该RAR消息携带的信息进行相应操作。After receiving the random access request message, the terminal device needs to use a Random Access-Radio Network Temporary Identifier (RA-RNTI) to monitor the Physical Downlink Control Channel (PDCCH) for receiving. Belong to your own RAR message. If the random access preamble of the RAR message received by the terminal device is the same as the random access preamble sent by the terminal device, the terminal device determines that the RAR message belongs to itself, and performs corresponding operations according to the information carried in the RAR message.
然而,采用该方法确定属于自己的RAR消息具有较大的局限性,不利于终端设备准确地确定属于自己的RAR消息。However, using this method to determine the RAR message belonging to itself has a large limitation, which is disadvantageous for the terminal device to accurately determine the RAR message belonging to itself.
发明内容Summary of the invention
本发明实施例提供一种用于随机接入的方法、网络设备和终端设备,该方法具有较高的兼容性,有利于终端设备准确地确定属于自己的RAR消息。The embodiments of the present invention provide a method, a network device, and a terminal device for random access. The method has high compatibility, and is beneficial for the terminal device to accurately determine the RAR message that belongs to itself.
第一方面,提供了一种用于随机接入的方法,该方法包括:网络设备接收第一终端设备发送的随机接入请求消息,该随机接入请求消息携带随机接入前导码;该网络设备根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;该网络设备根据该RA-RNTI发送随机接入响应RAR消息, 该RAR消息携带前导码信息和指示信息,该前导码信息用于指示该随机接入前导码,该前导码信息和该指示信息用于接收到该RAR消息的至少一个终端设备中的该第一终端设备确定该RAR消息属于该第一终端设备。The first aspect provides a method for random access, where the method includes: receiving, by a network device, a random access request message sent by a first terminal device, where the random access request message carries a random access preamble; the network Determining, by the device, a random access radio network temporary identifier RA-RNTI according to the random access request message; the network device sending a random access response RAR message according to the RA-RNTI, The RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, and the preamble information and the indication information are used to receive the first one of the at least one terminal device of the RAR message. The terminal device determines that the RAR message belongs to the first terminal device.
与现有技术中仅根据RAR消息携带的随机接入前导码的索引确定属于自己的RAR消息相比,在该方案中,第一终端设备根据指示信息和前导码信息确定属于自己的RAR消息,该方法具有较高的兼容性,有利第一终端设备准确地确定属于自己的RAR消息,以便于第一终端设备可以高效地进行随机接入过程。Compared with the RAR message of the random access preamble carried by the RAR message in the prior art, the first terminal device determines the RAR message that belongs to itself according to the indication information and the preamble information. The method has high compatibility, and is advantageous for the first terminal device to accurately determine the RAR message that belongs to itself, so that the first terminal device can perform the random access process efficiently.
在第一方面可能的实现方式中,该网络设备根据该随机接入请求消息确定RA-RNTI,包括:该网络设备根据该随机接入请求消息占用的资源的第一资源信息确定该RA-RNTI;该指示信息包括:该随机接入请求消息占用的资源的第二资源信息、以该随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及该随机接入请求消息携带的除该随机前导码之外的信息中的至少一种,其中,该第一资源信息和该第二资源信息不同。In a possible implementation manner of the first aspect, the determining, by the network device, the RA-RNTI according to the random access request message, the network device determining, according to the first resource information of the resource occupied by the random access request message, the RA-RNTI The indication information includes: second resource information of the resource occupied by the random access request message, information about a function value of the second resource information of the resource occupied by the random access request message, and the random access request At least one of the information carried by the message other than the random preamble, wherein the first resource information and the second resource information are different.
该指示信息可以包括多种类型的信息,该方案灵活性高,以便于终端设备可以高效地根据指示信息确定属于自己的RAR消息。The indication information may include multiple types of information, which is flexible, so that the terminal device can efficiently determine the RAR message belonging to itself according to the indication information.
在第一方面可能的实现方式中,该第一资源信息用于指示该随机接入请求消息占用的频域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源。In a possible implementation manner of the first aspect, the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message, and the second resource information is used to indicate a time domain resource that is occupied by the random access request message.
与现有技术中根据随机接入请求消息占用的频域资源的信息和时域资源的信息共同确定RA-RNTI相比,在该方案中,网络设备和第一终端设备可以根据随机接入请求消息占用的频域资源的第一资源信息确定RA-RNTI,将随机接入请求消息占用的时域资源的第二资源信息通过RAR消息发送给第一终端设备,可以降低第一终端设备获取RA-RNTI的复杂度,同时能够使第一终端设备准确地确定属于自己的RAR消息。Compared with the information about the frequency domain resource occupied by the random access request message and the information of the time domain resource in the prior art, the network device and the first terminal device may be configured according to the random access request. The first resource information of the frequency domain resource occupied by the message determines the RA-RNTI, and the second resource information of the time domain resource occupied by the random access request message is sent to the first terminal device by using the RAR message, so that the first terminal device can obtain the RA. - The complexity of the RNTI, while enabling the first terminal device to accurately determine its own RAR message.
在第一方面可能的实现方式中,该第一资源信息用于指示该随机接入请求消息占用的频域资源和时域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源,且该第一资源信息指示的时域资源的粒度大于该第二资源信息指示的时域资源的粒度。In a possible implementation manner of the first aspect, the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate that the random access request message is occupied. The time domain resource, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
在该方案中,第一资源信息虽然同时指示时域资源和频域资源,但是第一资源信息指示的时域资源的粒度较大,可以降低第一终端设备获取 RA-RNTI的复杂度,第二资源指示的时域资源的粒度较小,可以使第一终端设备准确地确定属于自己的RAR消息。该方案可以平衡终端设备接收RAR消息的复杂度以及终端设备确定属于自己的RAR消息的确定次数。In this solution, the first resource information indicates the time domain resource and the frequency domain resource, but the granularity of the time domain resource indicated by the first resource information is large, and the first terminal device may be reduced. The complexity of the RA-RNTI, the granularity of the time domain resource indicated by the second resource is small, and the first terminal device can accurately determine the RAR message belonging to itself. The scheme can balance the complexity of receiving the RAR message by the terminal device and the determined number of times the terminal device determines the RAR message belonging to itself.
在第一方面可能的实现方式中,该第二资源信息具体用于指示该随机接入请求消息占用的时域资源的起始位置和该随机接入请求消息占用的时域资源的结束位置中的至少一种。In a possible implementation manner of the first aspect, the second resource information is specifically used to indicate a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message. At least one of them.
该方案中,第二资源信息可以指示起始位置和/或结束位置,该方案灵活性高具有较高的兼容性以及适用性。In this solution, the second resource information may indicate a starting location and/or an ending location, and the scheme has high flexibility and high compatibility and applicability.
在第一方面可能的实现方式中,该第二资源信息具体用于指示以下信息中的至少一种:该随机接入请求消息占用的第一个子帧的编号;该随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;该随机接入请求消息占用的最后一个子帧的编号;该随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。In a possible implementation of the first aspect, the second resource information is specifically used to indicate at least one of the following information: a number of a first subframe occupied by the random access request message; the random access request message is occupied The number of the first time slot or the first mini time slot; the number of the last subframe occupied by the random access request message; the last time slot occupied by the random access request message or the last mini time slot Numbering.
在第一方面可能的实现方式中,该函数值的信息用于指示以下信息中的至少一种:该RAR消息占用的第一个子帧的编号与该随机接入请求消息占用的第一个子帧的编号之间的差值;该RAR消息占用的第一个时隙的编号与该随机接入请求消息占用的第一个时隙的编号之间的差值,或该RAR消息占用的第一个迷你时隙的编号与该随机接入请求消息占用的第一个迷你时隙的编号之间的差值;该RAR消息占用的最后一个子帧的编号与该随机接入请求消息占用的最后一个子帧的编号之间的差值;该RAR消息占用的最后一个时隙的编号与该随机接入请求消息占用的最后一个时隙的编号之间的差值,或该RAR消息占用的最后一个迷你时隙的编号与该随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。In a possible implementation manner of the first aspect, the information of the function value is used to indicate at least one of the following information: a number of the first subframe occupied by the RAR message and a first one occupied by the random access request message The difference between the numbers of the subframes; the difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the RAR message occupation The difference between the number of the first minislot and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message is occupied by the random access request message The difference between the numbers of the last subframe; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the RAR message occupation The difference between the number of the last minislot and the number of the last minislot occupied by the random access request message.
在第一方面可能的实现方式中,该随机接入请求消息携带的除该随机前导码之外的信息包括该第一终端设备的位置信息、该第一终端设备的标识信息以及该随机接入请求消息的发送时间戳中的至少一种。In a possible implementation manner of the first aspect, the information that is other than the random preamble carried by the random access request message includes location information of the first terminal device, identifier information of the first terminal device, and the random access. At least one of the transmission timestamps of the request message.
该方案不但使第一终端设备准确地确定属于自己的RAR消息,进一步地,该方案可以将LTE系统中的msg2消息和msg3进行融合,能够节省信令开销,提高终端设备随机接入的效率。The solution not only enables the first terminal device to accurately determine the RAR message that belongs to itself, but further, the solution can fuse the msg2 message and the msg3 in the LTE system, which can save signaling overhead and improve the efficiency of random access of the terminal device.
在第一方面可能的实现方式中,该指示信息承载于该RAR消息的介质访问控制子头MAC subheader或MAC RAR中。 In a possible implementation manner of the first aspect, the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
该方案中,指示信息可以灵活地承载与RAR消息中,具有较高的兼容性。In this solution, the indication information can be flexibly carried in the RAR message with high compatibility.
第二方面,提供一种用于随机接入的方法,该方法包括:第一终端设备向网络设备发送随机接入请求消息,该随机接入请求消息携带随机接入前导码;该第一终端设备根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;该第一终端设备根据该RA-RNTI接收该网络设备发送的随机接入响应RAR消息,该RAR消息携带前导码信息和指示信息;该第一终端设备根据该随机接入请求消息携带的随机接入前导码、该前导码信息和该指示信息确定该RAR消息是否属于该第一终端设备。A second aspect provides a method for random access, where the method includes: a first terminal device sends a random access request message to a network device, where the random access request message carries a random access preamble; the first terminal The device determines, according to the random access request message, a random access radio network temporary identifier RA-RNTI, and the first terminal device receives, according to the RA-RNTI, a random access response RAR message sent by the network device, where the RAR message carries preamble information. And the indication information; the first terminal device determines, according to the random access preamble, the preamble information, and the indication information that are included in the random access request message, whether the RAR message belongs to the first terminal device.
与现有技术中仅根据RAR消息携带的随机接入前导码的索引确定属于自己的RAR消息相比,在该方案中,第一终端设备根据指示信息和前导码信息确定属于自己的RAR消息,能够提高第一终端设备确定属于自己的RAR消息的准确率,以便于终端设备可以高效地进行随机接入。Compared with the RAR message of the random access preamble carried by the RAR message in the prior art, the first terminal device determines the RAR message that belongs to itself according to the indication information and the preamble information. The accuracy of determining the RAR message belonging to the first terminal device by itself can be improved, so that the terminal device can perform random access efficiently.
在第二方面可能的实现方式中,该第一终端设备根据该RA-RNTI接收该网络设备发送的随机接入响应RAR消息,包括:该第一终端设备根据该随机接入请求消息占用的资源的第一资源信息确定该RA-RNTI;若该前导码信息指示的随机接入前导码与该随机接入请求消息携带的随机接入前导码相同,且该指示信息包括:该随机接入请求消息占用的资源的第二资源信息、以该随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及该随机接入请求消息携带的除该随机前导码之外的信息中的至少一种,该方法还包括:该第一终端设备确定该RAR消息属于该第一终端设备;其中,该第一资源信息和该第二资源信息不同。In a possible implementation manner of the second aspect, the first terminal device, according to the RA-RNTI, receives a random access response (RAR) message sent by the network device, and includes: the resource occupied by the first terminal device according to the random access request message. The first resource information determines the RA-RNTI; if the random access preamble indicated by the preamble information is the same as the random access preamble carried in the random access request message, and the indication information includes: the random access request The second resource information of the resource occupied by the message, the second resource information of the resource occupied by the random access request message, the function value of the variable, and the random access preamble carried by the random access request message At least one of the information, the method further includes: the first terminal device determines that the RAR message belongs to the first terminal device; wherein the first resource information and the second resource information are different.
第一终端设备根据前导码信息和指示信息确定属于自己的RAR消息,以使第一终端设备可以高效地确定属于自己的RAR消息。The first terminal device determines the RAR message belonging to itself according to the preamble information and the indication information, so that the first terminal device can efficiently determine the RAR message belonging to itself.
在第二方面可能的实现方式中,该第一资源信息用于指示该随机接入请求消息占用的频域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源。In a possible implementation manner of the second aspect, the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message, and the second resource information is used to indicate a time domain resource that is occupied by the random access request message.
与现有技术中根据随机接入请求消息占用的频域资源的信息和时域资源的信息共同确定RA-RNTI相比,在该方案中,第一终端设备可以根据随机接入请求消息占用的频域资源的第一资源信息确定RA-RNTI,将随机接入请求消息占用的时域资源的第二资源信息通过RAR消息发送给第一终端 设备,可以降低第一终端设备获取RA-RNTI的复杂度,同时能够提高第一终端设备确定属于自己的RAR消息的准确率。Compared with the information about the frequency domain resource and the information of the time domain resource occupied by the random access request message in the prior art, the first terminal device can be occupied according to the random access request message. The first resource information of the frequency domain resource determines the RA-RNTI, and the second resource information of the time domain resource occupied by the random access request message is sent to the first terminal by using the RAR message. The device can reduce the complexity of acquiring the RA-RNTI by the first terminal device, and can improve the accuracy of the first terminal device determining the RAR message that belongs to itself.
在第二方面可能的实现方式中,该第一资源信息用于指示该随机接入请求消息占用的频域资源和时域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源,且该第一资源信息指示的时域资源的粒度大于该第二资源信息指示的时域资源的粒度。In a possible implementation manner of the second aspect, the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate that the random access request message is occupied. The time domain resource, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
第一资源信息虽然同时指示时域资源和频域资源,但是第一资源信息指示的时域资源的颗粒度较大,既可以降低第一终端设备获取RA-RNTI的复杂度,又可以提高第一终端设备接收属于自己的RAR消息的效率。该方案可以平衡终端设备接收RAR消息的复杂度以及终端设备确定属于自己的RAR消息的确定次数。The first resource information indicates the time domain resource and the frequency domain resource, but the granularity of the time domain resource indicated by the first resource information is large, which can reduce the complexity of acquiring the RA-RNTI by the first terminal device, and can improve the complexity. The efficiency with which a terminal device receives its own RAR message. The scheme can balance the complexity of receiving the RAR message by the terminal device and the determined number of times the terminal device determines the RAR message belonging to itself.
在第二方面可能的实现方式中,该第二资源信息具体用于指示该随机接入请求消息占用的时域资源的起始位置和该随机接入请求消息占用的时域资源的结束位置中的至少一种。In a possible implementation manner of the second aspect, the second resource information is specifically used to indicate a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message. At least one of them.
在第二方面可能的实现方式中,该第二资源信息具体用于指示以下信息中的至少一种:该随机接入请求消息占用的第一个子帧的编号;该随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;该随机接入请求消息占用的最后一个子帧的编号;该随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。In a possible implementation manner of the second aspect, the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; the random access request message is occupied The number of the first time slot or the first mini time slot; the number of the last subframe occupied by the random access request message; the last time slot occupied by the random access request message or the last mini time slot Numbering.
在第二方面可能的实现方式中,该函数值的信息用于指示以下信息中的至少一种:该RAR消息占用的第一个子帧的编号与该随机接入请求消息占用的第一个子帧的编号之间的差值;该RAR消息占用的第一个时隙的编号与该随机接入请求消息占用的第一个时隙的编号之间的差值,或该RAR消息占用的第一个迷你时隙的编号与该随机接入请求消息占用的第一个迷你时隙的编号之间的差值;该RAR消息占用的最后一个子帧的编号与该随机接入请求消息占用的最后一个子帧的编号之间的差值;该RAR消息占用的最后一个时隙的编号与该随机接入请求消息占用的最后一个时隙的编号之间的差值,或该RAR消息占用的最后一个迷你时隙的编号与该随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。In a possible implementation manner of the second aspect, the information of the function value is used to indicate at least one of the following information: a number of the first subframe occupied by the RAR message and a first one occupied by the random access request message The difference between the numbers of the subframes; the difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the RAR message occupation The difference between the number of the first minislot and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message is occupied by the random access request message The difference between the numbers of the last subframe; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the RAR message occupation The difference between the number of the last minislot and the number of the last minislot occupied by the random access request message.
在第二方面可能的实现方式中,该随机接入请求消息携带的除该随机前导码之外的信息包括该第一终端设备的位置信息、该第一终端设备的标识信 息以及该随机接入请求消息的发送时间戳中的至少一种。In a possible implementation manner of the second aspect, the information that is included in the random access request message except the random preamble includes location information of the first terminal device, and an identifier of the first terminal device. And at least one of a transmission time stamp of the random access request message.
该方案不但可以提高终端设备确定属于自己的RAR消息的准确率,进一步地,该方案可以将LTE系统中的msg2消息和msg3进行融合,能够节省信令开销,提高终端设备随机接入的效率。The solution can not only improve the accuracy of the terminal device to determine the RAR message of the terminal. In addition, the solution can combine the msg2 message and the msg3 in the LTE system, which can save signaling overhead and improve the efficiency of random access of the terminal device.
在第二方面可能的实现方式中,该指示信息承载于该RAR消息的介质访问控制子头MAC subheader或MAC RAR中。In a possible implementation manner of the second aspect, the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
该方案中,指示信息可以灵活地承载与RAR消息中,具有较高的兼容性。In this solution, the indication information can be flexibly carried in the RAR message with high compatibility.
在第二方面可能的实现方式中,若该前导码信息指示的随机接入前导码与该随机接入请消息携带的随机接入前导码不同,或该指示信息与该随机请求消息不匹配,该方法还包括:该第一终端设备确定该RAR消息不属于该第一终端设备;其中,该指示信息与该随机接入请求消息不匹配,包括:该指示信息包括的资源信息与该随机接入请求消息占用的资源的第二资源信息不同;和/或该指示信息包括的函数值的信息与以该随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息不同;和/或该指示信息包括的位置信息与该随机接入请求消息携带的该第一终端设备的位置信息不同;和/或该指示信息包括的标识信息与该随机接入请求消息携带的该第一终端设备的标识信息不同;和/或该指示信息包括的发送时间戳与该随机接入请求消息携带的发送时间戳不同。In a possible implementation manner of the second aspect, if the random access preamble indicated by the preamble information is different from the random access preamble carried by the random access request message, or the indication information does not match the random request message, The method further includes: the first terminal device determines that the RAR message does not belong to the first terminal device, where the indication information does not match the random access request message, and includes: the resource information included in the indication information and the random connection The second resource information of the resource occupied by the incoming request message is different; and/or the information of the function value included in the indication information is different from the information of the function value of the second resource information of the resource occupied by the random access request message; And/or the location information included in the indication information is different from the location information of the first terminal device carried in the random access request message; and/or the identifier information included in the indication information and the first part carried in the random access request message The identification information of a terminal device is different; and/or the sending timestamp included in the indication information and the sending time carried by the random access request message The stamp is different.
第三方面,提供一种网络设备,用于执行第一方面或第一方面任意可能的实现方式中的方法。具体地,该网络设备可以包括用于执行上述第一方面或第一方面任意可能实现方式中的方法的模块和/或单元。In a third aspect, a network device is provided for performing the method of the first aspect or any possible implementation of the first aspect. In particular, the network device may comprise modules and/or units for performing the method of any of the first aspect or the first aspect of the first aspect described above.
第四方面,提供一种终端设备,用于执行第二方面或第二方面任意可能的实现方式中的方法。具体地,该终端设备可以包括用于执行上述第二方面或第二方面任意可能实现方式中的方法的模块和/或单元。In a fourth aspect, a terminal device is provided for performing the method in any of the possible implementations of the second aspect or the second aspect. In particular, the terminal device may comprise modules and/or units for performing the method of any of the above-described second or second aspects of the second aspect.
第五方面,提供一种网络设备,包括:包括收发器、存储器和处理器,该收发器用于收发信号,该存储器用于存储指令,该处理器用于执行该存储器存储的指令,并且对该存储器中存储的指令的执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。A fifth aspect provides a network device, including: a transceiver, a memory, and a processor, the transceiver for transmitting and receiving signals, the memory for storing instructions, the processor for executing instructions stored by the memory, and the memory Execution of the instructions stored in the processor causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.
第六方面,提供一种终端设备,包括:包括收发器、存储器和处理器,该收发器用于收发信号,该存储器用于存储指令,该处理器用于执行该存储 器存储的指令,并且对该存储器中存储的指令的执行使得该处理器执行第二方面或第二方面的任意可能的实现方式中的方法。A sixth aspect provides a terminal device, including: a transceiver, a memory, and a processor, the transceiver for transmitting and receiving signals, the memory for storing instructions, and the processor for performing the storage The instructions stored by the device, and the execution of the instructions stored in the memory, cause the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
第七方面,提供了一种计算机存储介质,该计算机存储介质中存储有程序代码,该程序代码用于指示执行上述第一方面或第一方面的任意可能的实现方式中的指令。In a seventh aspect, a computer storage medium is provided having stored therein program code for indicating execution of instructions in any of the first aspect or any of the possible implementations of the first aspect.
第八方面,提供了一种计算机存储介质,该计算机存储介质中存储有程序代码,该程序代码用于指示执行上述第二方面或第二方面的任意可能的实现方式中的指令。In an eighth aspect, a computer storage medium is provided having stored therein program code for indicating execution of instructions in any of the possible implementations of the second aspect or the second aspect above.
第九方面,提供了一种系统芯片,该系统芯片包括输入接口、输出接口、处理器和存储器,该处理器用于执行该存储器中的代码,当该代码被执行时,该处理器可以实现前述第一方面及各种实现方式中的方法。In a ninth aspect, a system chip is provided, the system chip comprising an input interface, an output interface, a processor, and a memory, the processor is configured to execute code in the memory, and when the code is executed, the processor can implement the foregoing The first aspect and the methods in various implementations.
第十方面,提供了一种系统芯片,该系统芯片包括输入接口、输出接口、处理器和存储器,该处理器用于执行该存储器中的代码,当该代码被执行时,该处理器可以实现前述第二方面及各种实现方式中的方法。In a tenth aspect, a system chip is provided, the system chip comprising an input interface, an output interface, a processor, and a memory, the processor is configured to execute code in the memory, and when the code is executed, the processor can implement the foregoing The second aspect and the methods in various implementations.
因此,在本发明实施例中,RAR消息可以携带指示信息和前导码信息,该指示信息可以包括该随述接入请求消息占用的资源的第二资源信息、以该随述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及该随机接入请求消息携带的除该随机前导码之外的信息中的至少一种,使得第一终端设备可以根据该指示信息和前导码信息准确地确定属于自己的RAR消息。Therefore, in the embodiment of the present invention, the RAR message may carry the indication information and the preamble information, where the indication information may include the second resource information of the resource occupied by the access request message, and the random access request message The second resource information of the occupied resource is at least one of the function value of the variable and the information other than the random preamble carried by the random access request message, so that the first terminal device can according to the indication information. And the preamble information accurately determines the RAR message belonging to itself.
附图说明DRAWINGS
图1是适用于本发明实施例的无线通信系统的示意图。1 is a schematic diagram of a wireless communication system suitable for use in an embodiment of the present invention.
图2是根据本发明实施例的用于随机接入的方法的示意性流程图。2 is a schematic flow chart of a method for random access according to an embodiment of the present invention.
图3是适用于本发明实施例的介质访问控制子头MAC subheader的示意图。3 is a schematic diagram of a medium access control subhead MAC subheader suitable for use in an embodiment of the present invention.
图4是适用于本发明实施例的MAC RAR的一例的示意图。4 is a schematic diagram of an example of a MAC RAR applicable to an embodiment of the present invention.
图5是适用于本发明实施例的MAC RAR的另一例的示意图。FIG. 5 is a schematic diagram of another example of a MAC RAR applicable to an embodiment of the present invention.
图6是根据本发明实施例的网络设备的一例的示意性框图。FIG. 6 is a schematic block diagram of an example of a network device according to an embodiment of the present invention.
图7是根据本发明实施例的终端设备的一例的示意性框图。FIG. 7 is a schematic block diagram of an example of a terminal device according to an embodiment of the present invention.
图8是根据本发明实施例的网络设备的另一例的示意性框图。 FIG. 8 is a schematic block diagram of another example of a network device according to an embodiment of the present invention.
图9是根据本发明实施例的终端设备的另一例的示意性框图。FIG. 9 is a schematic block diagram of another example of a terminal device according to an embodiment of the present invention.
图10根据本发明实施例的系统芯片的示意性框图。Figure 10 is a schematic block diagram of a system chip in accordance with an embodiment of the present invention.
具体实施方式detailed description
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。The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.
图1示出了适用于本发明实施例的无线通信系统100。该无线通信系统100可以包括网络设备100。网络设备100可以是与终端设备通信的设备。网络设备100可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备(例如UE)进行通信。可选地,该网络设备100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(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。FIG. 1 illustrates a wireless communication system 100 suitable for use with embodiments of the present invention. The wireless communication system 100 can include a network device 100. Network device 100 can be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system. (Evolutional Node B, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备,例如第一终端设备120和第二终端设备130。终端设备可以是移动的或固定的。可选地,终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。The wireless communication system 100 also includes at least one terminal device, such as the first terminal device 120 and the second terminal device 130, located within the coverage of the network device 110. The terminal device can be mobile or fixed. Optionally, the terminal device may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or terminal devices in future evolved PLMNs, and the like.
可选地,5G系统或网络还可以称为新无线(New Radio,NR)系统或网络。Alternatively, the 5G system or network may also be referred to as a New Radio (NR) system or network.
图1示例性地示出了一个网络设备和两个终端设备,可选地,该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括 其它数量的终端设备,本发明实施例对此不做限定。FIG. 1 exemplarily shows one network device and two terminal devices. Alternatively, the wireless communication system 100 may include a plurality of network devices and may include within the coverage of each network device. Other embodiments of the present invention are not limited in this embodiment of the present invention.
可选地,该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本发明实施例对此不作限定。Optionally, the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
应理解,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。It should be understood that the terms "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. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.
需要说明的是,本发明实施例中的“第一”、“第二”等仅为用于区分不同的对象,而不应对本发明实施例构成任何限定。It should be noted that the “first”, “second” and the like in the embodiments of the present invention are only used to distinguish different objects, and should not be construed as limiting the embodiments of the present invention.
还需要说明的是,本发明实施例中的情况、方式和类别的划分仅是为了描述的方便,不应构成特别的限定,各种情况、方式和类别中的特征在不矛盾的情况下可以相结合。It should be noted that the division of the cases, manners, and categories in the embodiments of the present invention is only for convenience of description, and should not be specifically limited. The features in various situations, manners, and categories may be contradictory. Combine.
网络设备在发送RAR消息之前,首先会根据接收到的随机接入请求消息确定RA-RNTI。相应地,终端设备根据发送的随机接入请求消息确定RA-RNTI。换句话说,网络设备和终端设备分别确定随机接入请求消息对应的RA-RNTI。首先介绍现有技术中确定RA-RNTI的方式。Before sending the RAR message, the network device first determines the RA-RNTI according to the received random access request message. Accordingly, the terminal device determines the RA-RNTI according to the transmitted random access request message. In other words, the network device and the terminal device respectively determine the RA-RNTI corresponding to the random access request message. First, the manner of determining the RA-RNTI in the prior art will be introduced.
网络设备和终端设备根据随机接入请求消息占用的第一个子帧(subframe)的编号和该第一个子帧里随机接入请求消息占用的频域位置的编号,确定RA-RNTI。The network device and the terminal device determine the RA-RNTI according to the number of the first subframe occupied by the random access request message and the number of the frequency domain location occupied by the random access request message in the first subframe.
具体地,网络设备和终端设备可以根据公式(1)确定RA-RNTI。Specifically, the network device and the terminal device may determine the RA-RNTI according to formula (1).
RA-RNTI=1+t_id+10f_id(1)RA-RNTI=1+t_id+10f_id(1)
其中,t_id为随机接入请求消息占用的第一个子帧的编号,f_id为在该第一个子帧里随机接入请求消息占用的频域位置的编号。The t_id is the number of the first subframe occupied by the random access request message, and the f_id is the number of the frequency domain location occupied by the random access request message in the first subframe.
网络设备接收到随机接入请求消息之后,根据公式(1)确定RA-RNTI,并根据该RA-RNTI发送RAR消息,相应地,终端设备确定该RA-RNTI,并根据该RA-RNTI监听属于自己的RAR消息。该方式会增加终端设备获取RAR消息的复杂度。After receiving the random access request message, the network device determines the RA-RNTI according to formula (1), and sends a RAR message according to the RA-RNTI. Accordingly, the terminal device determines the RA-RNTI, and listens to the RA-RNTI according to the RA-RNTI. Your own RAR message. This method increases the complexity of the terminal device acquiring the RAR message.
例如,在多波束Multi-beam系统中,为了提高终端设备发送随机接入请求消息的成功率,终端设备可以通过不同的波束向网络设备发送随机接入请求消息。终端设备在不同的波束发送随机接入请求消息时,每个波束对应的 时域资源的信息不同(例如,对应的第一个子帧的编号不同)。此时,终端设备在监听属于自己的RAR消息时需要尝试多个RA-RNTI,导致终端设备获取RAR的复杂度较高。For example, in the multi-beam multi-beam system, in order to improve the success rate of the terminal device transmitting the random access request message, the terminal device may send a random access request message to the network device through different beams. When the terminal device sends a random access request message in different beams, each beam corresponds to The information of the time domain resource is different (for example, the corresponding first subframe has a different number). At this time, the terminal device needs to try multiple RA-RNTIs when listening to its own RAR message, which causes the terminal device to acquire RARs with high complexity.
又例如,为了提高终端设备发送随机接入前导码的成功率,终端设备可以使用频分复用的方式在同一个时域资源上发送多个随机接入请求消息(多个随机接入请求消息携带的随机接入前导码可以相同也可以不同)。此时,终端设备在监听属于该第一终端设备的RAR消息时也需要尝试多个RA-RNTI,导致终端设备获取RAR消息的复杂度较高。For example, in order to improve the success rate of the terminal device transmitting the random access preamble, the terminal device may send multiple random access request messages (multiple random access request messages) on the same time domain resource by using frequency division multiplexing. The random access preambles carried may be the same or different). At this time, the terminal device also needs to try multiple RA-RNTIs when listening to the RAR message belonging to the first terminal device, which causes the terminal device to acquire the RAR message with high complexity.
为了降低终端设备获取RAR消息的复杂度,可以采用以下方式确定RA-RNTI。In order to reduce the complexity of the terminal device acquiring the RAR message, the RA-RNTI may be determined in the following manner.
方式一、method one,
根据随机接入请求消息占用的资源的第一资源信息确定RA-RNTI。其中,该第一资源信息用于指示该随机接入请求消息占用的频域资源或时域资源。The RA-RNTI is determined according to the first resource information of the resource occupied by the random access request message. The first resource information is used to indicate a frequency domain resource or a time domain resource occupied by the random access request message.
例如,网络设备和终端设备可以根据公式(2)确定RA-RNTI。For example, the network device and the terminal device can determine the RA-RNTI according to formula (2).
RA-RNTI=t_id+A(2)RA-RNTI=t_id+A(2)
其中,t_id为随机接入请求消息占用的第一个子帧的编号;A为调整参数。Where t_id is the number of the first subframe occupied by the random access request message; A is an adjustment parameter.
又例如,网络设备和终端设备可以根据公式(3)确定RA-RNTI。For another example, the network device and the terminal device can determine the RA-RNTI according to formula (3).
RA-RNTI=10f_id+B(3)RA-RNTI=10f_id+B(3)
其中,f_id为在随机接入请求消息占用的第一个子帧里该随机接入请求消息占用的频域位置编号,B为调整参数。The f_id is a frequency domain location number occupied by the random access request message in the first subframe occupied by the random access request message, and B is an adjustment parameter.
该方式确定RA-RNTI,可以降低终端设备获取RAR消息的复杂度,但是,现有技术中的确定属于自己的RAR消息具有局限性,若将方式一与现有技术中确定属于自己的RAR消息的方式结合,容易导致终端设备判断出错。The manner of determining the RA-RNTI can reduce the complexity of the RAR message obtained by the terminal device. However, the RAR message in the prior art is determined to have its own RAR message. The combination of the methods is easy to cause the terminal device to judge the error.
例如,在第一资源信息用于指示随机接入请求消息占用的频域资源的情况下,网络设备和终端设备根据第一资源信息确定RA-RNTI,若第一终端设备和第二终端设备均占用频域资源A发送随机接入请求消息,且第一终端设备和第二终端设备发送的随机接入请求消息均包括随机接入前导码B,网络设备先根据第二终端设备发送的随机接入请求消息发送RAR消息(记为 第二RAR消息),第一终端设备和第二终端设备均监听到该第二RAR消息,该第二RAR消息携带随机接入前导码B的信息(例如,随机接入前导码B的索引)。若仍采用现有技术中确定RAR消息的方式(即仅根据随机接入前导码的索引确定属于自己的RAR消息),第一终端设备会误认为该第二RAR消息为属于自己的RAR消息,并使用该第二RAR消息中的信息进行相关操作,导致第一终端设备处理出错。For example, in a case where the first resource information is used to indicate the frequency domain resource occupied by the random access request message, the network device and the terminal device determine the RA-RNTI according to the first resource information, if both the first terminal device and the second terminal device are The random access request message is sent by the frequency domain resource A, and the random access request message sent by the first terminal device and the second terminal device includes a random access preamble B, and the network device first randomly connects according to the second terminal device. Incoming request message to send RAR message (marked as a second RAR message, the first terminal device and the second terminal device both listen to the second RAR message, where the second RAR message carries information of the random access preamble B (for example, an index of the random access preamble B) . If the RAR message is determined in the prior art, that is, the RAR message belongs to itself according to the index of the random access preamble, the first terminal device may mistake the second RAR message as its own RAR message. And performing related operations by using the information in the second RAR message, causing the first terminal device to process an error.
同理,在第一资源信息用于指示随机接入请求消息占用的时域资源的情况下,由于现有技术中的确定属于自己的RAR消息具有局限性,也容易导致终端设备判断出错。Similarly, in the case that the first resource information is used to indicate the time domain resource occupied by the random access request message, since the RAR message that is determined to be its own in the prior art has limitations, the terminal device may easily cause an error.
方式二、Method 2,
根据随机接入请求消息占用的资源的第一资源信息确定RA-RNTI。其中,该第一资源信息用于指示该随机接入请求消息占用的频域资源和时域资源,且方式二中第一资源信息指示的时域资源的粒度较大。The RA-RNTI is determined according to the first resource information of the resource occupied by the random access request message. The first resource information is used to indicate the frequency domain resource and the time domain resource that are occupied by the random access request message, and the size of the time domain resource indicated by the first resource information in the second mode is larger.
例如,在方式二中,网络设备和终端设备根据随机接入请求消息占用的无线帧的信息(例如,占用的第一个无线帧的编号)确定RA-RNTI。For example, in the second mode, the network device and the terminal device determine the RA-RNTI according to the information of the radio frame occupied by the random access request message (for example, the number of the first radio frame occupied).
该方法能够平衡终端设备接收RAR消息的复杂度以及终端设备确定属于自己的RAR的次数。但是,由于现有技术中的确定属于自己的RAR消息具有局限性,若将方式二与现有技术中确定属于自己的RAR消息的方式结合,容易导致终端设备判断出错,具体说明可以参见上文的相关描述,为了简洁此处不再赘述。The method is capable of balancing the complexity of receiving RAR messages by the terminal device and the number of times the terminal device determines its own RAR. However, because the RAR message in the prior art is determined to have its own limitations, if the second method is combined with the method of determining the RAR message that belongs to the prior art in the prior art, the terminal device may easily make an error. For details, refer to the above. The related descriptions are not repeated here for brevity.
进一步地,假设多个终端设备占用相同的子帧和频域资源发送相同的随机接入前导码,该多种终端设备接收到某个终端设备的RAR消息之后,根据该RAR消息携带的随机接入前导码,会认为该RAR消息属于自己,并根据该RAR消息进行竞争过程。由于终端设备没有正确识别属于自己的RAR消息,会导致终端设备进行无意义的竞争。Further, it is assumed that a plurality of terminal devices occupy the same subframe and the frequency domain resource to send the same random access preamble, and after receiving the RAR message of a certain terminal device, the multiple terminal devices perform random connection according to the RAR message. Entering the preamble, the RAR message is considered to belong to itself, and the contention process is performed according to the RAR message. Since the terminal device does not correctly identify the RAR message that belongs to itself, the terminal device may cause meaningless competition.
通过分析可以发现,采用现有技术中仅根据RAR消息中的随机接入前导码的索引确定属于自己的RAR消息具有局限性,不利于终端设备准确地确定属于自己的RAR消息。It can be found by the analysis that determining the RAR message belonging to itself according to the index of the random access preamble in the RAR message in the prior art has limitations, which is disadvantageous for the terminal device to accurately determine the RAR message belonging to itself.
有鉴于此,本发明实施例提供一种用于随机接入的方法,网络设备发送的RAR消息包括前导码信息和指示信息,终端设备可以根据前导码信息和指示信息确定接收到的RAR消息是否属于自己。该方法具有较高的兼容性, 有利于终端设备准确地判断属于自己的RAR消息。下面详细说明本发明实施例的用于随机接入的方法。In this regard, an embodiment of the present invention provides a method for random access. The RAR message sent by the network device includes preamble information and indication information, and the terminal device may determine whether the received RAR message is based on the preamble information and the indication information. belong to myself. This method has high compatibility. It is advantageous for the terminal device to accurately determine the RAR message belonging to itself. The method for random access according to an embodiment of the present invention is described in detail below.
图2示出了从设备交互的角度描述的根据本发明实施例的用于随机接入的方法200的示意性流程图。该方法200可以应用于包括网络设备和至少一个终端设备的通信系统中。其中,该通信系统可以为图1所示的无线通信系统100。2 shows a schematic flow diagram of a method 200 for random access, in accordance with an embodiment of the present invention, as described in terms of device interaction. The method 200 can be applied to a communication system including a network device and at least one terminal device. The communication system may be the wireless communication system 100 shown in FIG. 1.
以下,不失一般性,以网络设备与第一终端设备(和第二终端设备)的交互为例,详细说明根据本发明实施例的方法。应理解,第一终端设备为至少一个终端设备中的任意一个终端设备,“第一”仅用于区分说明,而不应对本发明实施例构成任何限定。同理,第二终端设备也不应对本发明实施例构成任何限定。In the following, without loss of generality, the method according to an embodiment of the present invention is described in detail by taking the interaction between the network device and the first terminal device (and the second terminal device) as an example. It should be understood that the first terminal device is any one of the at least one terminal device, and the “first” is only used to distinguish the description, and should not be construed as limiting the embodiment of the present invention. Similarly, the second terminal device should not constitute any limitation on the embodiments of the present invention.
如图2所示,该方法200包括:As shown in FIG. 2, the method 200 includes:
S210、第一终端设备向网络设备发送随机接入请求消息,相应地,网络设备接收第一终端设备发送的随机接入请求消息,其中,该随机接入请求消息包括随机接入前导码。S210: The first terminal device sends a random access request message to the network device, and the network device receives the random access request message sent by the first terminal device, where the random access request message includes a random access preamble.
可选地,本发明实施例中,第一终端设备可以通过多波束的方式向网络设备发送接入请求消息。Optionally, in the embodiment of the present invention, the first terminal device may send an access request message to the network device by using multiple beams.
其中,终端设备在通过多波束的方式发送随机接入请求消息时,不同的波束的起始子帧的位置可以不同。The location of the starting subframe of the different beams may be different when the terminal device sends the random access request message in a multi-beam manner.
可选地,本发明实施例中,第一终端设备可以通过一个波束发送随机接入请求消息之后,等待网络设备发送的RAR消息,如果未等到网络设备发送的RAR消息,采用另一波束发送随机接入请求消息,并等待网络设备发送的RAR消息,如果接收到网络设备发送的RAR消息,则停止发送随机接入请求消息,否则,再次选择波束发送随机接入请求消息。Optionally, in the embodiment of the present invention, after the first terminal device sends the random access request message through one beam, it waits for the RAR message sent by the network device, and if it does not wait for the RAR message sent by the network device, uses another beam to send the random Accessing the request message, and waiting for the RAR message sent by the network device, if receiving the RAR message sent by the network device, stopping sending the random access request message; otherwise, selecting the beam to send the random access request message again.
S220、网络设备根据该随机接入请求消息确定RA-RNTI,相应地,第一终端设备根据该随机接入请求消息确定RA-RNTI;S220, the network device determines the RA-RNTI according to the random access request message, and accordingly, the first terminal device determines the RA-RNTI according to the random access request message;
S230、网络设备根据RA-RNTI发送RAR消息,相应地,第一终端设备根据RA-RNTI接收网络设备发送的RAR消息,其中,该RAR消息包括指示信息和前导码信息,该前导码信息用于指示该随机接入前导码;S230. The network device sends a RAR message according to the RA-RNTI. Correspondingly, the first terminal device receives the RAR message sent by the network device according to the RA-RNTI, where the RAR message includes indication information and preamble information, where the preamble information is used. Indicating the random access preamble;
具体地,网络设备根据RA-RNTI和该随机接入请求消息发送RAR消息。Specifically, the network device sends the RAR message according to the RA-RNTI and the random access request message.
S240、该第一终端设备根据该指示信息和该前导码信息,确定该RAR 消息属于该第一终端设备。S240. The first terminal device determines the RAR according to the indication information and the preamble information. The message belongs to the first terminal device.
为了便于说明,可以将“第一终端设备发送的随机接入请求消息”记为“第一请求消息”,将“第一随机接入请求消息携带的随机接入前导码”记为“第一前导码”,将“根据第一请求消息确定的RA-RNTI”记为“第一RA-RNTI”将“网络设备根据第一请求消息发送的RAR消息”记为“第一RAR消息”。For convenience of description, the “random access request message sent by the first terminal device” may be recorded as “first request message”, and “the random access preamble carried by the first random access request message” may be recorded as “first”. The preamble "records the "RA-RNTI determined according to the first request message" as "the first RA-RNTI" and the "RAR message transmitted by the network device according to the first request message" as the "first RAR message".
具体地,第一终端设备需要确定接收到的RAR消息是否属于该第一终端设备。Specifically, the first terminal device needs to determine whether the received RAR message belongs to the first terminal device.
例如,第一终端设备发送第一请求消息之后,若第一终端设备接收的RAR消息携带的指示信息与第一请求消息相匹配,且该RAR消息携带的前导码信息指示的随机接入前导码与第一前导码相同,第一终端设备可以确定该RAR消息属于该第一终端设备。For example, after the first terminal device sends the first request message, if the indication information carried by the RAR message received by the first terminal device matches the first request message, and the random access preamble indicated by the preamble information carried in the RAR message Like the first preamble, the first terminal device can determine that the RAR message belongs to the first terminal device.
又例如,第一终端设备发送第一请求消息之后,若第一终端设备接收的RAR消息携带的指示信息与第一请求消息不匹配,或该RAR消息携带的前导码信息指示的随机接入前导码与第一前导码不相同,第一终端设备可以确定该RAR消息不属于该第一终端设备。For example, after the first terminal device sends the first request message, if the indication information carried by the RAR message received by the first terminal device does not match the first request message, or the random access preamble indicated by the preamble information carried in the RAR message, The code is different from the first preamble, and the first terminal device may determine that the RAR message does not belong to the first terminal device.
与现有技术中终端设备仅根据RAR消息中的随机接入前导码的索引确定属于自己的RAR消息相比,在本发明实施例中,RAR消息不仅携带前导码信息还携带指示信息,第一终端设备根据RAR消息携带的前导码信息和指示信息确定属于自己的RAR消息,该方法具有较高的兼容性,能够适用于多种应用场景,有利于第一终端设备准确地确定属于自己的RAR消息。In the embodiment of the present invention, the RAR message not only carries the preamble information but also carries the indication information, compared with the RAR message of the random access preamble in the RAR message. The terminal device determines the RAR message that belongs to the user according to the preamble information and the indication information carried in the RAR message. The method has high compatibility and can be applied to multiple application scenarios, and is beneficial for the first terminal device to accurately determine the RAR that belongs to the user. Message.
可选地,在S240之前,该方法200还可以包括:Optionally, before S240, the method 200 may further include:
S201、第二终端设备向网络设备发送第二随机接入请求消息,相应地,网络设备接收该第二随机接入请求消息,可以将“第二随机接入请求消息”记为“第二请求消息”;S201. The second terminal device sends a second random access request message to the network device. Correspondingly, the network device receives the second random access request message, and may record the second random access request message as the second request. Message";
S202、第二终端设备根据该第二请求消息确定RA-RNTI,相应地,网络设备根据该第二请求消息确定RA-RNTI,可以将“根据第二请求消息确定的RA-RNTI”记为“第二RA-RNTI”;S202. The second terminal device determines the RA-RNTI according to the second request message. Correspondingly, the network device determines the RA-RNTI according to the second request message, and may record “the RA-RNTI determined according to the second request message” as “ Second RA-RNTI";
S203、网络设备根据该第二RA-RNTI发送第二RAR消息;S203. The network device sends a second RAR message according to the second RA-RNTI.
S204、第二终端设备根据该第二RAR消息携带的前导码信息和指示信息,确定该第二RAR消息为属于自己的RAR消息,该第二终端设备停止监 听属于自己的RAR消息;S204. The second terminal device determines, according to the preamble information and the indication information carried in the second RAR message, that the second RAR message is a RAR message that belongs to the user, and the second terminal device stops monitoring. Listen to your own RAR message;
对于第一终端设备而言,网络设备发送第二RAR消息至少可以包括以下两种情况:For the first terminal device, the network device sending the second RAR message may include at least the following two situations:
情况一、第一RA-RNTI和第二RA-RNTI不相同,第一终端设备无法接收该第二RAR消息。Case 1: The first RA-RNTI and the second RA-RNTI are different, and the first terminal device cannot receive the second RAR message.
情况二、第一RA-RNTI和第二RA-RNTI相同,第一终端设备和第二终端设备均可以接收到该第二RAR消息,该第一终端设备需要根据第二RAR消息中的指示信息和前导码信息确定该第二RAR消息是否属于该第一终端设备。若该第一终端设备确定该第二RAR消息属于该第一终端设备,该第一终端设备可以根据该第二RAR消息进行处理;若该第一终端设备确定该第二RAR消息不属于该第一终端设备,该第一终端设备需要继续监听属于该第一终端设备的RAR消息。Case 2: The first RA-RNTI is the same as the second RA-RNTI, and the first terminal device and the second terminal device may receive the second RAR message, where the first terminal device needs to be according to the indication information in the second RAR message. And the preamble information determines whether the second RAR message belongs to the first terminal device. If the first terminal device determines that the second RAR message belongs to the first terminal device, the first terminal device may process according to the second RAR message; if the first terminal device determines that the second RAR message does not belong to the first A terminal device, the first terminal device needs to continue to listen to RAR messages belonging to the first terminal device.
具体地,在情况二中,该方法200可以包括:Specifically, in case two, the method 200 can include:
S205、第一终端设备根据第二RAR消息携带的前导码信息和指示信息,确定该第二RAR消息不属于该第一终端设备,该第一终端设备需要继续监听属于自己的RAR消息,其中,该第二RAR消息携带的指示信息与第一请求消息对应的指示信息不同。S205: The first terminal device determines, according to the preamble information and the indication information that is carried by the second RAR message, that the second RAR message does not belong to the first terminal device, and the first terminal device needs to continue to monitor the RAR message that belongs to the first terminal device, where The indication information carried by the second RAR message is different from the indication information corresponding to the first request message.
具体地,RAR消息携带的指示信息可以包括以下几类指示信息中的至少一类:Specifically, the indication information carried by the RAR message may include at least one of the following types of indication information:
第一类、the first sort,
第一类指示信息包括随机接入请求消息占用的资源的第二资源信息。The first type of indication information includes second resource information of resources occupied by the random access request message.
例如,第一RAR携带的指示信息包括第一请求消息占用的资源的第二资源信息,第二RAR携带的指示信息包括第二请求消息占用的资源的第二资源信息。For example, the indication information carried by the first RAR includes the second resource information of the resource occupied by the first request message, and the indication information carried by the second RAR includes the second resource information of the resource occupied by the second request message.
作为可选地一例,若采用方式一确定RA-RNTI,第一资源信息和第二资源信息的域类别不同。As an optional example, if the RA-RNTI is determined by the method 1, the domain types of the first resource information and the second resource information are different.
例如,第一资源信息用于指示随机接入请求消息占用频域资源,第二资源信息用于指示随机接入请求消息占用的时域资源。即网络设备和终端设备根据随机接入请求消息占用的资源的第一资源信息确定RA-RNTI,且该第一资源信息用于指示随机接入请求消息占用的频域资源,该第二资源信息用于指示随机接入请求消息占用的时域资源。 For example, the first resource information is used to indicate that the random access request message occupies the frequency domain resource, and the second resource information is used to indicate the time domain resource occupied by the random access request message. That is, the network device and the terminal device determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message, and the first resource information is used to indicate the frequency domain resource occupied by the random access request message, and the second resource information A time domain resource used to indicate that the random access request message is occupied.
可选地,该第二资源信息可以用于指示随机接入请求消息占用的时域资源的起始位置和随机接入请求消息占用的时域资源的结束位置中的至少一种。Optionally, the second resource information may be used to indicate at least one of a start location of a time domain resource occupied by the random access request message and an end location of a time domain resource occupied by the random access request message.
例如,该第二资源信息具体用于指示以下信息中的至少一种:For example, the second resource information is specifically used to indicate at least one of the following information:
1a、随机接入请求消息占用的第一个子帧的编号;1a. The number of the first subframe occupied by the random access request message;
例如,第一RAR消息携带的指示信息包括第二资源信息,该第二资源信息用于指示第一请求消息占用的第一个子帧的编号;第二RAR消息携带的第二资源信息用于指示第二请求消息占用的第一个子帧的编号。For example, the indication information carried by the first RAR message includes the second resource information, where the second resource information is used to indicate the number of the first subframe occupied by the first request message, and the second resource information carried by the second RAR message is used for Indicates the number of the first subframe occupied by the second request message.
1b、随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;1b, the number of the first time slot or the first mini time slot occupied by the random access request message;
1c、随机接入请求消息占用的最后一个子帧的编号;1c. The number of the last subframe occupied by the random access request message;
1d、随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。1d. The number of the last time slot or the last mini time slot occupied by the random access request message.
1b、1c和1d的说明可以参见1a的相关描述,为了简洁此处不再赘述。For a description of 1b, 1c, and 1d, refer to the related description of 1a, and details are not described herein for brevity.
通过第一类指示信息可以将频域资源和时域资源进行分离。例如,使用随机接入请求消息占用的频域资源确定RA-RNTI,使用随机接入请求消息占用的时域资源确定指示信息,该方法可以使第一终端设备准确地确定属于自己的RAR消息,同时该方法能够降低第一终端设备接收RAR消息的复杂度。The frequency domain resource and the time domain resource can be separated by the first type of indication information. For example, determining the RA-RNTI by using the frequency domain resource occupied by the random access request message, and determining the indication information by using the time domain resource occupied by the random access request message, the method may enable the first terminal device to accurately determine the RAR message that belongs to itself. At the same time, the method can reduce the complexity of receiving the RAR message by the first terminal device.
例如,以指示信息包括1a为例,第一请求消息和第二请求消息占用的频域资源均为A,第一前导码和第二前导码相同均为B,第一请求消息占用的第一个子帧的编号为N(N≥0),第二请求消息占用的第一个子帧的编号为M(M≥0,且M≠N),网络设备接收第二请求消息后发送第二RAR消息,该第二RAR消息包括第二前导码B的信息和编号M,由于第一终端设备和第二终端设备使用相同的频域资源发送随机接入请求消息,第一终端设备和第二终端设备均可以接收到(监听到)第二RAR消息。由于编号M与编号N不同,第一终端设备确定该第二RAR消息不属于自己,第一终端设备继续监听属于自己的RAR消息。若第一终端设备监听到包括第一前导码B的信息和编号M的第一RAR消息,第一终端设备确定该第一RAR消息属于该第一终端设备。For example, if the indication information includes 1a, the frequency domain resources occupied by the first request message and the second request message are all A, and the first preamble and the second preamble are both B, and the first request message occupies the first. The number of the subframe is N (N ≥ 0), and the number of the first subframe occupied by the second request message is M (M ≥ 0, and M ≠ N), and the network device sends the second request message and then sends the second a RAR message, the second RAR message includes information and a number M of the second preamble B, and the first terminal device and the second terminal device send the random access request message using the same frequency domain resource, the first terminal device and the second terminal device The terminal device can receive (listen to) the second RAR message. Since the number M is different from the number N, the first terminal device determines that the second RAR message does not belong to itself, and the first terminal device continues to listen to the RAR message belonging to itself. If the first terminal device listens to the information including the first preamble B and the first RAR message of the number M, the first terminal device determines that the first RAR message belongs to the first terminal device.
作为可选地另一例,若采用方式二确定RA-RNTI,第一资源信息和第二资源信息指示的资源的粒度不同,且第一资源信息指示的资源的粒度大于 第二资源信息指示的资源的粒度。As an optional example, if the RA-RNTI is determined by using the mode 2, the granularity of the resource indicated by the first resource information and the second resource information is different, and the granularity of the resource indicated by the first resource information is greater than The granularity of the resource indicated by the second resource information.
例如,第一资源信息用于指示随机接入请求消息(例如,第一请求消息)占用频域资源和时域资源,第二资源信息用于指示随机接入请求消息(第一请求消息)占用的时域资源,第一资源信息指示的时域资源的粒度大于第二资源信息指示的时域资源的粒度。For example, the first resource information is used to indicate that the random access request message (for example, the first request message) occupies a frequency domain resource and a time domain resource, and the second resource information is used to indicate that the random access request message (first request message) is occupied. The time domain resource, the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
需要说明的是,本发明实施例中的粒度可以是指资源的单位大小。例如,以时域资源为例,无线帧的粒度大于子帧的粒度,子帧的粒度大于时隙的粒度等。其中,该粒度也可以反映时域资源的精确度。换句话说,第二资源信息指示的时域资源的精确度高于第一资源信息指示的时域资源的精确度。It should be noted that the granularity in the embodiment of the present invention may refer to a unit size of a resource. For example, taking the time domain resource as an example, the granularity of the radio frame is greater than the granularity of the subframe, and the granularity of the subframe is greater than the granularity of the slot. The granularity can also reflect the accuracy of the time domain resource. In other words, the accuracy of the time domain resource indicated by the second resource information is higher than the accuracy of the time domain resource indicated by the first resource information.
例如,第一资源信息用于指示随机接入请求消息占用的无线帧的信息,第二资源信息用于指示随机接入请求消息占用的子帧的信息。For example, the first resource information is used to indicate the information of the radio frame occupied by the random access request message, and the second resource information is used to indicate the information of the subframe occupied by the random access request message.
又例如,第一资源信息用于指示随机接入请求消息占用的子帧的信息,第二资源信息用于指示随机接入请求消息占用的时隙(或迷你时隙)的信息。For another example, the first resource information is used to indicate information about a subframe occupied by the random access request message, and the second resource information is used to indicate information of a time slot (or mini slot) occupied by the random access request message.
通过第二类指示信息可以平衡接收RAR消息的复杂度以及接收RAR消息的次数。具体地,第一终端设备可以首先根据随机接入请求消息占用的频域资源以及大粒度的时域资源接收一部分RAR消息,可以降低接收RAR消息的复杂度以及RAR消息的接收次数,第一终端设备再根据小粒度的时域资源确定属于自己的RAR消息(即第一RAR消息),有利于第一终端设备准确地识别属于自己的RAR消息。The complexity of receiving the RAR message and the number of times the RAR message is received can be balanced by the second type of indication information. Specifically, the first terminal device may first receive a part of the RAR message according to the frequency domain resource occupied by the random access request message and the large-area time domain resource, and may reduce the complexity of receiving the RAR message and the number of times the RAR message is received, the first terminal. The device then determines its own RAR message (ie, the first RAR message) according to the small-grained time domain resource, which is beneficial for the first terminal device to accurately identify the RAR message that belongs to itself.
例如,第一终端设备通过三个波束发送第一请求消息A、第一请求消息B和第三请求消息C,第一请求消息A、第一请求消息B和第三请求消息C占用相同的频域资源和无线帧,且该三个第一请求消息占用的第一个子帧的编号分别是1、2和3,该三个第一请求消息对应相同的RA-RNTI,第一终端设备可以根据该RA-RNTI接收到该三个第一请求消息中的任一个(无需尝试多个RA-RNTI),能够降低接收RAR消息的复杂度。将用于精确地指示第一请求消息的时域资源的第二资源信息通过第一RAR消息进行承载,有利于第一终端设备可以准确地识别属于自己的RAR消息。For example, the first terminal device sends the first request message A, the first request message B, and the third request message C through three beams, and the first request message A, the first request message B, and the third request message C occupy the same frequency. a domain resource and a radio frame, and the first subframes occupied by the three first request messages are numbered 1, 2, and 3, respectively, and the three first request messages correspond to the same RA-RNTI, and the first terminal device may According to the RA-RNTI receiving any one of the three first request messages (without attempting multiple RA-RNTIs), the complexity of receiving the RAR message can be reduced. The second resource information for accurately indicating the time domain resource of the first request message is carried by the first RAR message, which is advantageous for the first terminal device to accurately identify the RAR message belonging to itself.
需要说明的是,该第二资源信息指示的时域资源的粒度越小(精确度越高),终端设备确定自己的RAR消息的准确率越高,能够高效地提高随机接入的效率,避免执行无意义的随机竞争过程。It should be noted that the smaller the granularity of the time domain resource indicated by the second resource information is, the higher the accuracy is. The higher the accuracy of the RAR message is determined by the terminal device, the efficiency of the random access can be effectively improved, and the efficiency is avoided. Perform a meaningless random competition process.
例如,仍然使用随机接入请求消息占用的频域资源和起始子帧确定 RA-RNTI,第一RAR消息包括的指示信息为第一请求消息占用的时隙的编号,该方法能够提高第一终端设备确定属于自己RAR消息的准确度,以使第一终端设备可以高效地进行随机接入过程。For example, the frequency domain resource and the starting subframe used by the random access request message are still determined. The RA-RNTI, the indication information included in the first RAR message is the number of the time slot occupied by the first request message, and the method can improve the accuracy of the first terminal device determining the own RAR message, so that the first terminal device can efficiently Perform a random access process.
第二类、The second category,
第二类指示信息以随机接入请求消息占用的第二资源信息为变量的函数值的信息。The second type of information indicating that the second resource information occupied by the random access request message is a function value of the variable.
例如,第一RAR携带的指示信息包括以第一请求消息占用的资源的第二资源信息为变量的函数值的信息,第二RAR携带的指示信息包括以第二请求消息占用的资源的第二资源信息为变量的函数值的信息。For example, the indication information carried by the first RAR includes information of a function value of the second resource information of the resource occupied by the first request message, and the indication information carried by the second RAR includes the second resource occupied by the second request message. The resource information is information of the function value of the variable.
以第二资源信息用于指示时域资源为例,该指示信息可以用于指示以下信息中的至少一种:For example, the second resource information is used to indicate a time domain resource, and the indication information may be used to indicate at least one of the following information:
2a、RAR消息占用的第一个子帧的编号与随机接入请求消息占用的第一个子帧的编号之间的差值;2a, the difference between the number of the first subframe occupied by the RAR message and the number of the first subframe occupied by the random access request message;
例如,第一RAR消息携带的指示信息用于指示第一RAR消息占用的第一个子帧的编号与第一请求消息占用的第一个子帧的编号之间的差值,第二RAR消息携带的指示信息用于指示第二RAR消息占用的第一个子帧的编号与第一请求消息占用的第一个子帧的编号之间的差值。For example, the indication information carried by the first RAR message is used to indicate a difference between the number of the first subframe occupied by the first RAR message and the number of the first subframe occupied by the first request message, and the second RAR message The carried indication information is used to indicate a difference between a number of the first subframe occupied by the second RAR message and a number of the first subframe occupied by the first request message.
2b、RAR消息占用的第一个时隙的编号与随机接入请求消息占用的第一个时隙的编号之间的差值,或该RAR消息占用的第一个迷你时隙的编号与随机接入请求消息占用的第一个迷你时隙的编号之间的差值;2b, the difference between the number of the first time slot occupied by the RAR message and the number of the first time slot occupied by the random access request message, or the number and random number of the first mini time slot occupied by the RAR message The difference between the numbers of the first minislot occupied by the access request message;
2c、RAR消息占用的最后一个子帧的编号与该随机接入请求消息占用的最后一个子帧的编号之间的差值;2c, the difference between the number of the last subframe occupied by the RAR message and the number of the last subframe occupied by the random access request message;
2d、该RAR消息占用的最后一个时隙的编号与该随机接入请求消息占用的最后一个时隙的编号之间的差值,或该RAR消息占用的最后一个迷你时隙的编号与该随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。2d, the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the number of the last mini slot occupied by the RAR message and the random number The difference between the numbers of the last minislot occupied by the access request message.
2b、2c和2d的说明可以参见2a的相关描述,为了简洁此处不再赘述。For descriptions of 2b, 2c, and 2d, refer to the related description of 2a, and details are not described herein for brevity.
第一终端设备接收到RAR消息之后,可以根据RAR消息中的指示信息确定该RAR消息对应的随机接入请求消息占用的时域资源的信息,并判断该确定的时域资源的信息和自己发送的随机接入请求消息的时域资源的信息是否相同,若相同,确定该RAR消息属于自己,若不同,确定该RAR消 息不属于自己并继续监听属于自己的RAR消息。After receiving the RAR message, the first terminal device may determine, according to the indication information in the RAR message, the information of the time domain resource occupied by the random access request message corresponding to the RAR message, and determine the information of the determined time domain resource and send the information by itself. Whether the information of the time domain resource of the random access request message is the same, if the same, determining that the RAR message belongs to itself, if different, determining the RAR cancellation The information does not belong to itself and continues to listen to its own RAR message.
例如,假设指示信息包括2a,第一请求消息和第二请求消息占用相同的频域资源A,第一前导码和第二前导码均为B,第一请求消息占用的第一个子帧的编号为N(N≥0),第二请求消息占用的第一个子帧的编号为M(M≥0,且M≠N),网络设备接收第二请求消息后在第K(N≤K,且M≠N)个子帧发送第二RAR消息,该第二RAR消息携带第二前导码B的信息和差值K-M,第一终端设备根据该差值K-M确定第二RAR消息对应的随机接入请求消息占用的第一个子帧的编号为M,第一终端设备可以确定该第二RAR消息不属于该第一终端设备。若第一终端设备监听到第一RAR消息,该第一RAR消息携带第一前导码B的信息和差值K-N,第一终端设备根据该差值K-N确定该第二RAR消息对应的随机接入请求消息占用的第一个子帧的编号为N,该第一终端设备确定该第一RAR消息对应的随机接入请求消息与第一请求消息的前导码信息和占用的资源信息均相同,该第一终端设备确定该第一RAR消息为属于该第一终端设备。For example, if the indication information includes 2a, the first request message and the second request message occupy the same frequency domain resource A, the first preamble and the second preamble are both B, and the first subframe occupied by the first request message The number is N (N ≥ 0), the number of the first subframe occupied by the second request message is M (M ≥ 0, and M ≠ N), and the network device receives the second request message at the Kth (N ≤ K). And the second RAR message carries the information of the second preamble B and the difference KM, and the first terminal device determines, according to the difference KM, the random connection corresponding to the second RAR message. The number of the first subframe occupied by the incoming request message is M, and the first terminal device may determine that the second RAR message does not belong to the first terminal device. If the first RAR message is received by the first terminal device, the first RAR message carries the information of the first preamble B and the difference KN, and the first terminal device determines, according to the difference KN, the random access corresponding to the second RAR message. The number of the first subframe occupied by the request message is N, and the first terminal device determines that the random access request message corresponding to the first RAR message is the same as the preamble information and the occupied resource information of the first request message. The first terminal device determines that the first RAR message belongs to the first terminal device.
第三类、The third category,
第三类指示信息包括随机接入请求消息携带的除随机接入前导码之外的信息。The third type of indication information includes information other than the random access preamble carried by the random access request message.
具体地,该第三类指示信息可以包括以下信息中的至少一种:Specifically, the third type of indication information may include at least one of the following information:
终端设备的位置信息;Location information of the terminal device;
例如,第一请求消息携带第一终端设备的位置信息,该第一RAR携带第一终端设备的位置信息;第二请求消息携带第二终端设备的位置信息,该第二RAR携带第二终端设备的位置信息。For example, the first request message carries the location information of the first terminal device, the first RAR carries the location information of the first terminal device, the second request message carries the location information of the second terminal device, and the second RAR carries the second terminal device. Location information.
终端设备的标识信息;Identification information of the terminal device;
例如,第一请求消息携带第一终端设备的标识信息,该第一RAR携带第一终端设备的标识信息;第二请求消息携带第二终端设备的标识信息,该第二RAR携带第二终端设备的标识信息。For example, the first request message carries the identifier information of the first terminal device, the first RAR carries the identifier information of the first terminal device, the second request message carries the identifier information of the second terminal device, and the second RAR carries the second terminal device. Identification information.
终端设备的波束信息;Beam information of the terminal device;
随机接入请求消息的发送时间戳。例如,第一RAR消息携带第一请求消息的发送时间戳,第二RAR消息携带第二请求消息的发送时间戳。The timestamp of the random access request message. For example, the first RAR message carries the sending timestamp of the first request message, and the second RAR message carries the sending timestamp of the second request message.
其中,该发送时间戳可以包括字符序列,用于标识随机接入请求消息的发送时间,该发送时间戳还可以具体的发送时刻(例如,北京时间12点15 分50秒)。该发送时间戳还可以是发送时刻的部分信息(例如,50s)。The sending timestamp may include a sequence of characters, which is used to identify a sending time of the random access request message, and the sending timestamp may also be a specific sending time (for example, 12:15 Beijing time) Minutes 50 seconds). The transmission timestamp may also be part of the information at the time of transmission (eg, 50s).
可选地,若RAR消息携带第三类指示信息,可以将现有LTE系统中的msg2消息和msg3进行融合,能够节省信令开销,提高终端设备随机接入的效率。Optionally, if the RAR message carries the third type of indication information, the msg2 message and the msg3 in the existing LTE system may be fused, which can save signaling overhead and improve the efficiency of random access of the terminal device.
例如,第一终端设备发送的第一请求消息携带第一前导码和第一终端设备的标识信息,若第一终端设备接收到的RAR消息包括该第一前导码和该标识信息,该第一终端设备可以确定该RAR消息属于该第一终端设备,进一步地,该第一终端设备还可以确定该第一终端设备在随机接入过程中竞争成功。For example, the first request message sent by the first terminal device carries the first preamble and the identifier information of the first terminal device, and if the RAR message received by the first terminal device includes the first preamble and the identifier information, the first The terminal device may determine that the RAR message belongs to the first terminal device, and further, the first terminal device may further determine that the first terminal device competes successfully in the random access process.
以上,描述了RAR消息携带的三类指示信息。具体地,第一终端设备接收到RAR消息之后,判断RAR消息携带的指示信息和前导码信息是否与自己发送的随机请求消息均匹配,若匹配,第一终端设备确定该RAR消息属于自己,若不匹配确定该RAR消息不属于自己。In the above, three types of indication information carried by the RAR message are described. Specifically, after receiving the RAR message, the first terminal device determines whether the indication information and the preamble information carried in the RAR message match the random request message sent by the first terminal device. If the matching, the first terminal device determines that the RAR message belongs to itself. A mismatch determines that the RAR message does not belong to itself.
例如,若RAR消息携带的前导码信息指示的随机接入前导码与第一请求消息携带的第一前导码相同,该前导码信息与第一请求消息匹配。反之,不匹配。For example, if the random access preamble indicated by the preamble information carried in the RAR message is the same as the first preamble carried in the first request message, the preamble information matches the first request message. Otherwise, it does not match.
又例如,若该指示信息包括资源信息,且该资源信息与第一请求消息占用的资源的第二资源信息相同(或该指示信息包括该第一请求消息占用的资源的第二资源信息),例如,该指示信息包括的资源信息为第一请求消息占用的第一个子帧的编号,该指示信息包括的资源信息与第一请求消息匹配,反之,不匹配。For another example, if the indication information includes the resource information, and the resource information is the same as the second resource information of the resource occupied by the first request message, or the indication information includes the second resource information of the resource occupied by the first request message, For example, the resource information included in the indication information is the number of the first subframe occupied by the first request message, and the resource information included in the indication information matches the first request message, and vice versa.
再例如,若RAR消息携带函数值的信息,且该函数值的信息与第一请求消息占用的资源的第二资源信息为变量的函数值的信息相同(或该指示信息包括以第一请求消息占用的资源的第二资源信息为变量的函数值的信息),例如,该指示信息包括的函数值的信息与第一终端设备根据第一请求消息和接收的RAR消息确定的函数值的信息相同,该指示信息包括的函数值的信息与第一请求消息匹配,反之,不匹配。For another example, if the RAR message carries the information of the function value, and the information of the function value is the same as the information of the function value of the variable of the second resource information of the resource occupied by the first request message (or the indication information includes the first request message) The second resource information of the occupied resource is information of a function value of the variable. For example, the information of the function value included in the indication information is the same as the information of the function value determined by the first terminal device according to the first request message and the received RAR message. The information of the function value included in the indication information matches the first request message, and vice versa.
再例如,若该指示信息包括位置信息,且该位置信息与第一请求消息携带的该第一终端设备的位置信息相同(或指示信息包括该第一终端设备的位置信息),该指示信息包括位置信息与该第一请求消息匹配,反之,不匹配。For example, if the indication information includes location information, and the location information is the same as the location information of the first terminal device carried by the first request message (or the indication information includes location information of the first terminal device), the indication information includes The location information matches the first request message, and vice versa.
再例如,若该指示信息包括标识信息,且该标识信息与第一请求消息携 带的该第一终端设备的标识信息相同(或该指示信息包括该第一终端设备的标识信息),该指示信息包括标识信息与该第一请求消息匹配,反之,不匹配。For another example, if the indication information includes the identifier information, and the identifier information is carried by the first request message The identifier information of the first terminal device is the same (or the indication information includes the identifier information of the first terminal device), and the indication information includes the identifier information that matches the first request message, and vice versa.
再例如,若该指示信息包括发送时间戳,且该发送时间戳与第一请求消息携带的该第一终端设备的发送时间戳相同(该指示信息包括第一请求消息的发送时间戳),该指示信息包括发送时间戳与该第一请求消息匹配,反之,不匹配。For example, if the indication information includes a sending timestamp, and the sending timestamp is the same as the sending timestamp of the first terminal device carried by the first request message, the indication information includes a sending timestamp of the first request message, The indication information includes that the sending timestamp matches the first request message, and vice versa.
需要说明的是,指示信息和前导码信息中任一个与随机接入请求消息不匹配,则终端设备确定该RAR消息不属于自己。It should be noted that, if any one of the indication information and the preamble information does not match the random access request message, the terminal device determines that the RAR message does not belong to itself.
可选地,该指示信息可以承载于RAR消息的MAC subheader中。图3是适用于本发明实施例的MAC subheader的示意图。Optionally, the indication information may be carried in a MAC subheader of the RAR message. 3 is a schematic diagram of a MAC subheader suitable for use in an embodiment of the present invention.
如图3所示,RAR消息的MAC subheader包括以下几个字段:As shown in Figure 3, the MAC subheader of the RAR message includes the following fields:
扩展字段(E);Extended field (E);
类型字段(T)Type field (T)
随机接入前导码的ID(RAPID);Random access preamble ID (RAPID);
该指示信息可以承载于MAC subheader包括的字段中的某一个字段中。The indication information may be carried in one of the fields included in the MAC subheader.
可选地,该指示信息可以承载于RAR消息的MAC RAR中。图4是适用于本发明实施例的MAC RAR的一例的示意图。该图4主要针对普通用户的MAC RAR。图5是适用于本发明实施例的MAC RAR的另一例的示意图。该图5主要针对覆盖增强类型用户的MAC RAR。如图4和图5所示,MAC RAR至少包括以下几个字段:Optionally, the indication information may be carried in a MAC RAR of the RAR message. 4 is a schematic diagram of an example of a MAC RAR applicable to an embodiment of the present invention. This figure 4 is mainly for the MAC RAR of a normal user. FIG. 5 is a schematic diagram of another example of a MAC RAR applicable to an embodiment of the present invention. This FIG. 5 is mainly for the MAC RAR of the coverage enhanced type user. As shown in FIG. 4 and FIG. 5, the MAC RAR includes at least the following fields:
预留位(R);Reserved bit (R);
时间提前调整命令(Timing Advance Command);Timing Advance Command;
指示上行msg3发送时所使用的资源(UL grant);Indicates the resource (UL grant) used when uplink msg3 is sent;
无线网络临时标识(Temporary C-RNTI)。Temporary C-RNTI.
该指示信息可以承载于MCA RAR包括的字段中的某一个字段中。可选地,网络设备还可以在MAC RAR中增加一个扩展字段,该扩展字段专门用于承载该指示信息。The indication information may be carried in one of the fields included in the MCA RAR. Optionally, the network device may further add an extension field in the MAC RAR, where the extension field is specifically used to carry the indication information.
因此,与现有技术中,终端设备仅根据RAR消息中携带的随机接入前导码的索引确定属于自己的RAR消息相比,本发明实施例中RAR消息携带指示信息和前导码信息,该方法具有较高的兼容性,能够适用于多种应用场景,有利于终端设备准确地确定属于自己的RAR消息。 Therefore, in the prior art, the RAR message carries the indication information and the preamble information in the RID message according to the index of the random access preamble carried in the RAR message. It has high compatibility and can be applied to multiple application scenarios, which is beneficial for the terminal device to accurately determine its own RAR message.
以上,描述了根据本发明实施例的用于随机接入的方法,以下,结合图6至图10详细描述根据本发明实施例的网络设备、终端设备和系统芯片。In the above, a method for random access according to an embodiment of the present invention has been described. Hereinafter, a network device, a terminal device, and a system chip according to an embodiment of the present invention will be described in detail with reference to FIGS. 6 to 10.
图6是根据本发明实施例的网络设备300的示意性框图。如图6所示,一种网络设备300,述网络设备300包括:FIG. 6 is a schematic block diagram of a network device 300 in accordance with an embodiment of the present invention. As shown in FIG. 6, a network device 300 includes:
接收单元310,用于接收第一终端设备发送的随机接入请求消息,该随机接入请求消息携带随机接入前导码;The receiving unit 310 is configured to receive a random access request message sent by the first terminal device, where the random access request message carries a random access preamble;
处理单元320,用于根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;The processing unit 320 is configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
发送单元330,用于根据该RA-RNTI发送随机接入响应RAR消息,该RAR消息携带前导码信息和指示信息,该前导码信息用于指示该随机接入前导码,该前导码信息和该指示信息用于接收到该RAR消息的至少一个终端设备中的该第一终端设备确定该RAR消息属于该第一终端设备。The sending unit 330 is configured to send, according to the RA-RNTI, a random access response RAR message, where the RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, the preamble information, and the The first terminal device in the at least one terminal device that receives the RAR message indicates that the RAR message belongs to the first terminal device.
可选地,该处理单元320具体用于:根据该随机接入请求消息占用的资源的第一资源信息确定该RA-RNTI;该指示信息包括:该随机接入请求消息占用的资源的第二资源信息、以该随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及该随机接入请求消息携带的除该随机前导码之外的信息中的至少一种,其中,该第一资源信息和该第二资源信息不同。Optionally, the processing unit 320 is configured to: determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message; the indication information includes: a second resource occupied by the random access request message The resource information, the second resource information of the resource occupied by the random access request message, the information of the function value of the variable, and the at least one of the information other than the random preamble carried by the random access request message, The first resource information is different from the second resource information.
可选地,该第一资源信息用于指示该随机接入请求消息占用的频域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源。Optionally, the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message, and the second resource information is used to indicate a time domain resource occupied by the random access request message.
可选地,该第一资源信息用于指示该随机接入请求消息占用的频域资源和时域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源,且该第一资源信息指示的时域资源的粒度大于该第二资源信息指示的时域资源的粒度。Optionally, the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate a time domain resource occupied by the random access request message, and the The granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
可选地,述第二资源信息具体用于指示该随机接入请求消息占用的时域资源的起始位置和该随机接入请求消息占用的时域资源的结束位置中的至少一种。Optionally, the second resource information is specifically used to indicate at least one of a start location of the time domain resource occupied by the random access request message and an end location of the time domain resource occupied by the random access request message.
可选地,该第二资源信息具体用于指示以下信息中的至少一种:该随机接入请求消息占用的第一个子帧的编号;该随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;该随机接入请求消息占用的最后一个子帧的编号;该随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编 号。Optionally, the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; and a first time slot occupied by the random access request message Or the number of the first minislot; the number of the last subframe occupied by the random access request message; the last slot or the last minislot occupied by the random access request message number.
可选地,该函数值的信息用于指示以下信息中的至少一种:该RAR消息占用的第一个子帧的编号与该随机接入请求消息占用的第一个子帧的编号之间的差值;该RAR消息占用的第一个时隙的编号与该随机接入请求消息占用的第一个时隙的编号之间的差值,或该RAR消息占用的第一个迷你时隙的编号与该随机接入请求消息占用的第一个迷你时隙的编号之间的差值;该RAR消息占用的最后一个子帧的编号与该随机接入请求消息占用的最后一个子帧的编号之间的差值;该RAR消息占用的最后一个时隙的编号与该随机接入请求消息占用的最后一个时隙的编号之间的差值,或该RAR消息占用的最后一个迷你时隙的编号与该随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。Optionally, the information of the function value is used to indicate at least one of the following information: between the number of the first subframe occupied by the RAR message and the number of the first subframe occupied by the random access request message The difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the first minislot occupied by the RAR message The difference between the number and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message and the last subframe occupied by the random access request message The difference between the numbers; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the last minislot occupied by the RAR message. The difference between the number and the number of the last minislot occupied by the random access request message.
可选地,该随机接入请求消息携带的除该随机前导码之外的信息包括该第一终端设备的位置信息、该第一终端设备的标识信息以及该随机接入请求消息的发送时间戳中的至少一种。Optionally, the information that is included in the random access request message except the random preamble includes location information of the first terminal device, identifier information of the first terminal device, and a sending timestamp of the random access request message. At least one of them.
可选地,该指示信息承载于该RAR消息的介质访问控制子头MAC subheader或MAC RAR中。Optionally, the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
应理解,该网络设备300可对应于根据本发明实施例的用于随机接入的方法200中的网络设备,该网络设备300可以包括用于执行上述方法中网络设备执行的方法的单元。并且,该网络设备300中的各单元和上述其他操作和/或功能分别为了上述方法的相应流程,为了简洁,在此不再赘述。It should be understood that the network device 300 can correspond to a network device in the method 200 for random access in accordance with an embodiment of the present invention, which can include a unit for performing the method performed by the network device in the above method. In addition, each unit in the network device 300 and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing method, and are not described herein again for brevity.
图7是根据本发明实施例的终端设备400的示意性框图。如图7所示,一种终端设备,该终端设备为第一终端设备,该终端设备包括:FIG. 7 is a schematic block diagram of a terminal device 400 according to an embodiment of the present invention. As shown in FIG. 7, a terminal device is a first terminal device, and the terminal device includes:
发送单元410,用于向网络设备发送随机接入请求消息,该随机接入请求消息携带随机接入前导码;The sending unit 410 is configured to send a random access request message to the network device, where the random access request message carries a random access preamble;
处理单元420,用于根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;The processing unit 420 is configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
接收单元430,用于根据该RA-RNTI接收该网络设备发送的随机接入响应RAR消息,该RAR消息携带前导码信息和指示信息;The receiving unit 430 is configured to receive, according to the RA-RNTI, a random access response (RAR) message sent by the network device, where the RAR message carries preamble information and indication information;
该处理单元420还用于:根据该随机接入请求消息携带的随机接入前导码、该前导码信息和该指示信息确定该RAR消息是否属于该第一终端设备。可选地,该处理单元420具体用于根据该随机接入请求消息占用的资源的第 一资源信息确定该RA-RNTI;若该前导码信息指示的随机接入前导码与该随机接入请求消息携带的随机接入前导码相同,且该指示信息包括:该随机接入请求消息占用的资源的第二资源信息、以该第二资源信息为变量的函数值的信息、以及该随机接入请求消息携带的除该随机前导码之外的信息中的至少一种,该处理单元420还用于:确定该RAR消息属于该第一终端设备;其中,该第一资源信息和该第二资源信息不同。The processing unit 420 is further configured to: determine, according to the random access preamble, the preamble information, and the indication information carried in the random access request message, whether the RAR message belongs to the first terminal device. Optionally, the processing unit 420 is specifically configured to: according to the resource occupied by the random access request message. The resource information determines the RA-RNTI; if the random access preamble indicated by the preamble information is the same as the random access preamble carried by the random access request message, and the indication information includes: the random access request message is occupied The processing unit 420 is at least one of the second resource information of the resource, the information of the function value with the second resource information as a variable, and the information other than the random preamble carried by the random access request message. The method further includes: determining that the RAR message belongs to the first terminal device; wherein the first resource information and the second resource information are different.
可选地,该第一资源信息用于指示该随机接入请求消息占用的频域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源。Optionally, the first resource information is used to indicate a frequency domain resource that is occupied by the random access request message, and the second resource information is used to indicate a time domain resource occupied by the random access request message.
可选地,该第一资源信息用于指示该随机接入请求消息占用的频域资源和时域资源,该第二资源信息用于指示该随机接入请求消息占用的时域资源,且该第一资源信息指示的时域资源的粒度大于该第二资源信息指示的时域资源的粒度。Optionally, the first resource information is used to indicate a frequency domain resource and a time domain resource that are occupied by the random access request message, where the second resource information is used to indicate a time domain resource occupied by the random access request message, and the The granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
可选地,该第二资源信息具体用于指示该随机接入请求消息占用的时域资源的起始位置和该随机接入请求消息占用的频域资源的结束位置中的至少一种。Optionally, the second resource information is specifically used to indicate at least one of a start location of the time domain resource occupied by the random access request message and an end location of the frequency domain resource occupied by the random access request message.
可选地,该第二资源信息具体用于指示以下信息中的至少一种:该随机接入请求消息占用的第一个子帧的编号;该随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;该随机接入请求消息占用的最后一个子帧的编号;该随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。Optionally, the second resource information is specifically used to indicate at least one of the following information: a number of the first subframe occupied by the random access request message; and a first time slot occupied by the random access request message Or the number of the first minislot; the number of the last subframe occupied by the random access request message; the number of the last slot or the last minislot occupied by the random access request message.
可选地,该函数值的信息用于指示以下信息中的至少一种:该RAR消息占用的第一个子帧的编号与该随机接入请求消息占用的第一个子帧的编号之间的差值;该RAR消息占用的第一个时隙的编号与该随机接入请求消息占用的第一个时隙的编号之间的差值,或该RAR消息占用的第一个迷你时隙的编号与该随机接入请求消息占用的第一个迷你时隙的编号之间的差值;该RAR消息占用的最后一个子帧的编号与该随机接入请求消息占用的最后一个子帧的编号之间的差值;该RAR消息占用的最后一个时隙的编号与该随机接入请求消息占用的最后一个时隙的编号之间的差值,或该RAR消息占用的最后一个迷你时隙的编号与该随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。Optionally, the information of the function value is used to indicate at least one of the following information: between the number of the first subframe occupied by the RAR message and the number of the first subframe occupied by the random access request message The difference between the number of the first slot occupied by the RAR message and the number of the first slot occupied by the random access request message, or the first minislot occupied by the RAR message The difference between the number and the number of the first minislot occupied by the random access request message; the number of the last subframe occupied by the RAR message and the last subframe occupied by the random access request message The difference between the numbers; the difference between the number of the last slot occupied by the RAR message and the number of the last slot occupied by the random access request message, or the last minislot occupied by the RAR message. The difference between the number and the number of the last minislot occupied by the random access request message.
可选地,该随机接入请求消息携带的除该随机前导码之外的信息包括该 第一终端设备的位置信息、该第一终端设备的标识信息以及该随机接入请求消息的发送时间戳中的至少一种。Optionally, the information that is included in the random access request message except the random preamble includes the At least one of location information of the first terminal device, identification information of the first terminal device, and a transmission timestamp of the random access request message.
可选地,该指示信息承载于该RAR消息的介质访问控制子头MAC subheader或MAC RAR中。Optionally, the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
可选地,若该前导码信息指示的随机接入前导码与该随机接入请消息携带的随机接入前导码不同,或该指示信息与该随机请求消息不匹配,该方法还包括:该第一终端设备确定该RAR消息不属于该第一终端设备;其中,该指示信息与该随机接入请求消息不匹配,包括:该指示信息包括的资源信息与该随机接入请求消息占用的资源的第二资源信息不同;和/或该指示信息包括的函数值的信息与以该随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息不同;和/或该指示信息包括的位置信息与该随机接入请求消息携带的该第一终端设备的位置信息不同;和/或该指示信息包括的标识信息与该随机接入请求消息携带的该第一终端设备的标识信息不同;和/或该指示信息包括的发送时间戳与该随机接入请求消息携带的发送时间戳不同。Optionally, if the random access preamble indicated by the preamble information is different from the random access preamble carried by the random access request message, or the indication information does not match the random request message, the method further includes: The first terminal device determines that the RAR message does not belong to the first terminal device, where the indication information does not match the random access request message, and includes: the resource information included in the indication information and the resource occupied by the random access request message The second resource information is different; and/or the information of the function value included in the indication information is different from the information of the function value of the second resource information of the resource occupied by the random access request message; and/or the indication information The location information is different from the location information of the first terminal device carried in the random access request message; and/or the identifier information included in the indication information and the identifier information of the first terminal device carried in the random access request message Different; and/or the indication information includes a transmission timestamp that is different from the transmission timestamp carried by the random access request message.
应理解,该终端设备400可对应于根据本发明实施例的用于随机接入的方法200中的第一终端设备,该终端设备400可以包括用于执行上述方法中第一终端设备执行的方法的单元。并且,该终端设备中的各单元和上述其他操作和/或功能分别为了上述方法的相应流程,为了简洁,在此不再赘述。It should be understood that the terminal device 400 may correspond to a first terminal device in the method 200 for random access according to an embodiment of the present invention, and the terminal device 400 may include a method for performing the first terminal device execution in the above method. Unit. In addition, each unit in the terminal device and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing method, and are not described herein again for brevity.
图8是根据本发明实施例的网络设备500的示意性框图。如图8所示,该网络设备500包括收发器510和处理器520。FIG. 8 is a schematic block diagram of a network device 500 in accordance with an embodiment of the present invention. As shown in FIG. 8, the network device 500 includes a transceiver 510 and a processor 520.
其中,收发器510用于:接收第一终端设备发送的随机接入请求消息,该随机接入请求消息携带随机接入前导码;处理器520用于:根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;收发器510还用于:根据该RA-RNTI发送随机接入响应RAR消息,该RAR消息携带前导码信息和指示信息,该前导码信息和该指示信息用于接收到该RAR消息的至少一个终端设备中的该第一终端设备确定该RAR消息为属于该第一终端设备的RAR消息,该前导码信息还用于指示该随机接入前导码。The transceiver 510 is configured to: receive a random access request message sent by the first terminal device, where the random access request message carries a random access preamble; and the processor 520 is configured to: determine, according to the random access request message, the random access The radio network temporary identifier RA-RNTI is further configured to: send a random access response RAR message according to the RA-RNTI, where the RAR message carries preamble information and indication information, where the preamble information and the indication information are used The first terminal device in the at least one terminal device that receives the RAR message determines that the RAR message is an RAR message belonging to the first terminal device, and the preamble information is further used to indicate the random access preamble.
应理解,该网络设备500可对应于根据本发明实施例的用于随机接入的方法200中的网络设备,该网络设备可以包括用于执行上述方法中网络设备执行的方法的实体单元。并且,该网络设备中的各实体单元和上述其他操作 和/或功能分别为了上述方法的相应流程,为了简洁,在此不再赘述。It should be understood that the network device 500 can correspond to a network device in the method 200 for random access in accordance with an embodiment of the present invention, which can include a physical unit for performing the method performed by the network device in the above method. And, each physical unit in the network device and the other operations described above The functions and/or functions are respectively for the corresponding processes of the above methods, and are not described herein for brevity.
图9是根据本发明实施例的终端设备600的示意性框图。具体地,该终端设备600为第一终端设备,如图6所示,该终端设备600包括收发器610和处理器620。FIG. 9 is a schematic block diagram of a terminal device 600 according to an embodiment of the present invention. Specifically, the terminal device 600 is a first terminal device. As shown in FIG. 6, the terminal device 600 includes a transceiver 610 and a processor 620.
收发器610用于:向网络设备发送随机接入请求消息,该随机接入请求消息携带随机接入前导码;处理器620用于:根据该随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;收发器610还用于:根据该RA-RNTI接收该网络设备根据该随机接入请求消息发送的随机接入响应RAR消息,该RAR消息携带前导码信息和指示信息,该前导码信息用于指示该随机接入前导码;该处理器630还用于:根据该前导码信息和该指示信息,确定该RAR消息为属于该第一终端设备的RAR消息The transceiver 610 is configured to: send a random access request message to the network device, where the random access request message carries a random access preamble; the processor 620 is configured to: determine, according to the random access request message, a random access wireless network temporary identifier The RA-RNTI is further configured to: receive, according to the RA-RNTI, a random access response (RAR) message sent by the network device according to the random access request message, where the RAR message carries preamble information and indication information, the preamble The information is used to indicate the random access preamble; the processor 630 is further configured to: determine, according to the preamble information and the indication information, the RAR message as an RAR message belonging to the first terminal device
应理解,该终端设备600可对应于根据本发明实施例的用于随机接入的方法200中的第一终端设备,该终端设备600可以包括用于执行上述方法中第一终端设备执行的方法的实体单元。并且,该终端设备中的各实体单元和上述其他操作和/或功能分别为了上述方法的相应流程,为了简洁,在此不再赘述。It should be understood that the terminal device 600 may correspond to a first terminal device in the method 200 for random access according to an embodiment of the present invention, and the terminal device 600 may include a method for performing execution by the first terminal device in the above method. Physical unit. In addition, the physical units in the terminal device and the other operations and/or functions described above are respectively used for the corresponding processes of the foregoing methods, and are not described herein for brevity.
图10是本发明实施例的系统芯片的示意性结构图。图10的系统芯片700包括输入接口701、输出接口702、该处理器703以及存储器704之间通过总线705相连,该处理器703用于执行该存储器704中的代码。FIG. 10 is a schematic structural diagram of a system chip according to an embodiment of the present invention. The system chip 700 of FIG. 10 includes an input interface 701, an output interface 702, a processor 703, and a memory 704 connected by a bus 705 for executing code in the memory 704.
可选地,当该代码被执行时,该处理器703实现方法实施例中由网络设备执行的方法。为了简洁,在此不再赘述。Optionally, when the code is executed, the processor 703 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
可选地,当该代码被执行时,该处理器703实现方法实施例中由第一设备执行的方法。为了简洁,在此不再赘述。Optionally, when the code is executed, the processor 703 implements the method performed by the first device in the method embodiment. For the sake of brevity, it will not be repeated here.
应理解,本发明实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是中央处理单元(Central Processing Unit,CPU)、该处理器还可以是其他通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及 逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件器组合执行完成。软件器可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。It should be understood that the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The processor may be a central processing unit (CPU), the processor may be another general-purpose processor, a digital signal processor (DSP), or an application specific integrated circuit (ASIC). ), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods and steps disclosed in the embodiments of the present invention may be implemented or executed. Logical block diagram. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software in the decoding processor. The software can be located in a random storage medium, such as a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
还应理解,本发明实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM”),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should also be understood that the memory in embodiments of the invention may be a volatile memory or a non-volatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. Volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (Static RAM) , SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhancement Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SDRAM) and Direct Memory Bus Random Memory (DR RAM). It should be noted that this document describes The memory of the systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.
还应理解,该总线系统除包括数据总线之外,还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见,在图中将各种总线都标为总线系统。It should also be understood that the bus system may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for the sake of clarity, the various buses are labeled as bus systems in the figure.
本发明实施例还提出了一种计算机可读存储介质,该计算机可读存储介质存储一个或多个程序,该一个或多个程序包括指令,该指令当被包括多个应用程序的便携式电子设备执行时,能够使该便携式电子设备执行本发明实施例的方法。Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are portable electronic devices that include a plurality of applications When executed, the portable electronic device can be enabled to perform the method of an embodiment of the present invention.
本领域普通技术人员可以意识到,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,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,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实施例的范围。Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the technical solution. Apply application and design constraints. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.
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。A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
在本发明实施例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,该单元的划分,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,机械或其它的形式。In the several embodiments provided by the embodiments of the present invention, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, 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 in an electrical, mechanical or other form.
该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。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.
另外,在本发明实施例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存在,也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品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)执行本发明实施例各个实施例该方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method in accordance with 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. .
以上所述,仅为本发明实施例的具体实施方式,但本发明实施例的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明实施例的保护范围之内。因此,本发明实施例的保护范围应该以权利要求的保护范围为准。 The foregoing is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily use the technical scope disclosed in the embodiments of the present invention. All changes or substitutions are contemplated to be within the scope of the embodiments of the invention. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of the claims.

Claims (38)

  1. 一种用于随机接入的方法,其特征在于,所述方法包括:A method for random access, the method comprising:
    网络设备接收第一终端设备发送的随机接入请求消息,所述随机接入请求消息携带随机接入前导码;Receiving, by the network device, a random access request message sent by the first terminal device, where the random access request message carries a random access preamble;
    所述网络设备根据所述随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;Determining, by the network device, a random access radio network temporary identifier RA-RNTI according to the random access request message;
    所述网络设备根据所述RA-RNTI发送随机接入响应RAR消息,所述RAR消息携带前导码信息和指示信息,所述前导码信息用于指示所述随机接入前导码,所述前导码信息和所述指示信息用于接收到所述RAR消息的至少一个终端设备中的所述第一终端设备确定所述RAR消息属于所述第一终端设备。And the network device sends a random access response RAR message according to the RA-RNTI, where the RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, the preamble The information and the indication information are used by the first terminal device in the at least one terminal device that receives the RAR message to determine that the RAR message belongs to the first terminal device.
  2. 根据权利要求1所述的方法,其特征在于,所述网络设备根据所述随机接入请求消息确定随机接入无线网络临时标识RA-RNTI,包括:The method according to claim 1, wherein the determining, by the network device, the random access radio network temporary identifier RA-RNTI according to the random access request message comprises:
    所述网络设备根据所述随机接入请求消息占用的资源的第一资源信息确定所述RA-RNTI;Determining, by the network device, the RA-RNTI according to the first resource information of the resource occupied by the random access request message;
    所述指示信息包括:所述随机接入请求消息占用的资源的第二资源信息、以所述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及所述随机接入请求消息携带的除所述随机前导码之外的信息中的至少一种,其中,所述第一资源信息和所述第二资源信息不同。The indication information includes: second resource information of a resource occupied by the random access request message, information of a function value of a second resource information of a resource occupied by the random access request message, and the random value At least one of the information other than the random preamble carried by the access request message, where the first resource information and the second resource information are different.
  3. 根据权利要求2所述的方法,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源。The method according to claim 2, wherein the first resource information is used to indicate a frequency domain resource occupied by the random access request message, and the second resource information is used to indicate the random access request. The time domain resource occupied by the message.
  4. 根据权利要求2所述的方法,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源和时域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源,且所述第一资源信息指示的时域资源的粒度大于所述第二资源信息指示的时域资源的粒度。The method according to claim 2, wherein the first resource information is used to indicate a frequency domain resource and a time domain resource occupied by the random access request message, and the second resource information is used to indicate the The time domain resource occupied by the random access request message, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  5. 根据权利要求3或4所述的方法,其特征在于,所述第二资源信息具体用于指示所述随机接入请求消息占用的时域资源的起始位置和所述随机接入请求消息占用的时域资源的结束位置中的至少一种。The method according to claim 3 or 4, wherein the second resource information is specifically used to indicate a start position of a time domain resource occupied by the random access request message and the random access request message is occupied. At least one of the end positions of the time domain resources.
  6. 根据权利要求3至5中任一项所述的方法,其特征在于,所述第二资源信息具体用于指示以下信息中的至少一种: The method according to any one of claims 3 to 5, wherein the second resource information is specifically used to indicate at least one of the following information:
    所述随机接入请求消息占用的第一个子帧的编号;The number of the first subframe occupied by the random access request message;
    所述随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;The number of the first time slot or the first mini time slot occupied by the random access request message;
    所述随机接入请求消息占用的最后一个子帧的编号;The number of the last subframe occupied by the random access request message;
    所述随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。The number of the last time slot or the last mini time slot occupied by the random access request message.
  7. 根据权利要求3至5中任一项所述的方法,其特征在于,所述函数值的信息用于指示以下信息中的至少一种:The method according to any one of claims 3 to 5, characterized in that the information of the function value is used to indicate at least one of the following information:
    所述RAR消息占用的第一个子帧的编号与所述随机接入请求消息占用的第一个子帧的编号之间的差值;a difference between a number of the first subframe occupied by the RAR message and a number of the first subframe occupied by the random access request message;
    所述RAR消息占用的第一个时隙的编号与所述随机接入请求消息占用的第一个时隙的编号之间的差值,或所述RAR消息占用的第一个迷你时隙的编号与所述随机接入请求消息占用的第一个迷你时隙的编号之间的差值;a difference between a number of a first time slot occupied by the RAR message and a number of a first time slot occupied by the random access request message, or a first mini time slot occupied by the RAR message And a difference between a number and a number of the first minislot occupied by the random access request message;
    所述RAR消息占用的最后一个子帧的编号与所述随机接入请求消息占用的最后一个子帧的编号之间的差值;a difference between a number of a last subframe occupied by the RAR message and a number of a last subframe occupied by the random access request message;
    所述RAR消息占用的最后一个时隙的编号与所述随机接入请求消息占用的最后一个时隙的编号之间的差值,或所述RAR消息占用的最后一个迷你时隙的编号与所述随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。a difference between a number of a last slot occupied by the RAR message and a number of a last slot occupied by the random access request message, or a number and a last mini slot occupied by the RAR message The difference between the numbers of the last minislot occupied by the random access request message.
  8. 根据权利要求2至7中任一项所述的方法,其特征在于,所述随机接入请求消息携带的除所述随机前导码之外的信息包括所述第一终端设备的位置信息、所述第一终端设备的标识信息以及所述随机接入请求消息的发送时间戳中的至少一种。The method according to any one of claims 2 to 7, wherein the information other than the random preamble carried by the random access request message includes location information and location of the first terminal device. At least one of identification information of the first terminal device and a transmission time stamp of the random access request message.
  9. 根据权利要求1至8中任一项所述的方法,其特征在于,所述指示信息承载于所述RAR消息的介质访问控制子头MAC subheader或MACRAR中。The method according to any one of claims 1 to 8, wherein the indication information is carried in a medium access control subheader MAC subheader or MACRAR of the RAR message.
  10. 一种用于随机接入的方法,其特征在于,所述方法包括:A method for random access, the method comprising:
    第一终端设备向网络设备发送随机接入请求消息,所述随机接入请求消息携带随机接入前导码;The first terminal device sends a random access request message to the network device, where the random access request message carries a random access preamble;
    所述第一终端设备根据所述随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;Determining, by the first terminal device, a random access radio network temporary identifier RA-RNTI according to the random access request message;
    所述第一终端设备根据所述RA-RNTI接收所述网络设备发送的随机接 入响应RAR消息,所述RAR消息携带前导码信息和指示信息;Receiving, by the first terminal device, the random connection sent by the network device according to the RA-RNTI In response to the RAR message, the RAR message carries preamble information and indication information;
    所述第一终端设备根据所述随机接入请求消息携带的随机接入前导码、所述前导码信息和所述指示信息确定所述RAR消息是否属于所述第一终端设备。Determining, by the first terminal device, that the RAR message belongs to the first terminal device according to the random access preamble, the preamble information, and the indication information that are carried in the random access request message.
  11. 根据权利要求10所述的方法,其特征在于,所述第一终端设备根据所述RA-RNTI接收所述网络设备发送的随机接入响应RAR消息,包括:The method according to claim 10, wherein the receiving, by the first terminal device, the random access response RAR message sent by the network device according to the RA-RNTI comprises:
    所述第一终端设备根据所述随机接入请求消息占用的资源的第一资源信息确定所述RA-RNTI;Determining, by the first terminal device, the RA-RNTI according to the first resource information of the resource occupied by the random access request message;
    若所述前导码信息指示的随机接入前导码与所述随机接入请求消息携带的随机接入前导码相同,且所述指示信息包括:所述随机接入请求消息占用的资源的第二资源信息、以所述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及所述随机接入请求消息携带的除所述随机前导码之外的信息中的至少一种,If the random access preamble indicated by the preamble information is the same as the random access preamble carried by the random access request message, and the indication information includes: a second resource occupied by the random access request message The resource information, the information of the function value of the second resource information of the resource occupied by the random access request message, and the information of the random access preamble and the information other than the random preamble carried by the random access request message One kind,
    所述方法还包括:The method further includes:
    所述第一终端设备确定所述RAR消息属于所述第一终端设备;Determining, by the first terminal device, that the RAR message belongs to the first terminal device;
    其中,所述第一资源信息和所述第二资源信息不同。The first resource information and the second resource information are different.
  12. 根据权利要求11所述的方法,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源。The method according to claim 11, wherein the first resource information is used to indicate a frequency domain resource occupied by the random access request message, and the second resource information is used to indicate the random access request. The time domain resource occupied by the message.
  13. 根据权利要求11所述的方法,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源和时域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源,且所述第一资源信息指示的时域资源的粒度大于所述第二资源信息指示的时域资源的粒度。The method according to claim 11, wherein the first resource information is used to indicate a frequency domain resource and a time domain resource occupied by the random access request message, and the second resource information is used to indicate the The time domain resource occupied by the random access request message, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  14. 根据权利要求12或13所述的方法,其特征在于,所述第二资源信息具体用于指示所述随机接入请求消息占用的时域资源的起始位置和所述随机接入请求消息占用的时域资源的结束位置中的至少一种。The method according to claim 12 or 13, wherein the second resource information is specifically used to indicate that a start location of a time domain resource occupied by the random access request message and the random access request message are occupied. At least one of the end positions of the time domain resources.
  15. 根据权利要求12至14中任一项所述的方法,其特征在于,所述第二资源信息具体用于指示以下信息中的至少一种:The method according to any one of claims 12 to 14, wherein the second resource information is specifically used to indicate at least one of the following information:
    所述随机接入请求消息占用的第一个子帧的编号;The number of the first subframe occupied by the random access request message;
    所述随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;The number of the first time slot or the first mini time slot occupied by the random access request message;
    所述随机接入请求消息占用的最后一个子帧的编号; The number of the last subframe occupied by the random access request message;
    所述随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。The number of the last time slot or the last mini time slot occupied by the random access request message.
  16. 根据权利要求12至15中任一项所述的方法,其特征在于,所述函数值的信息用于指示以下信息中的至少一种:The method according to any one of claims 12 to 15, wherein the information of the function value is used to indicate at least one of the following information:
    所述RAR消息占用的第一个子帧的编号与所述随机接入请求消息占用的第一个子帧的编号之间的差值;a difference between a number of the first subframe occupied by the RAR message and a number of the first subframe occupied by the random access request message;
    所述RAR消息占用的第一个时隙的编号与所述随机接入请求消息占用的第一个时隙的编号之间的差值,或所述RAR消息占用的第一个迷你时隙的编号与所述随机接入请求消息占用的第一个迷你时隙的编号之间的差值;a difference between a number of a first time slot occupied by the RAR message and a number of a first time slot occupied by the random access request message, or a first mini time slot occupied by the RAR message And a difference between a number and a number of the first minislot occupied by the random access request message;
    所述RAR消息占用的最后一个子帧的编号与所述随机接入请求消息占用的最后一个子帧的编号之间的差值;a difference between a number of a last subframe occupied by the RAR message and a number of a last subframe occupied by the random access request message;
    所述RAR消息占用的最后一个时隙的编号与所述随机接入请求消息占用的最后一个时隙的编号之间的差值,或所述RAR消息占用的最后一个迷你时隙的编号与所述随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。a difference between a number of a last slot occupied by the RAR message and a number of a last slot occupied by the random access request message, or a number and a last mini slot occupied by the RAR message The difference between the numbers of the last minislot occupied by the random access request message.
  17. 根据权利要求11至16中任一项所述的方法,其特征在于,所述随机接入请求消息携带的除所述随机前导码之外的信息包括所述第一终端设备的位置信息、所述第一终端设备的标识信息以及所述随机接入请求消息的发送时间戳中的至少一种。The method according to any one of claims 11 to 16, wherein the information other than the random preamble carried by the random access request message includes location information and location of the first terminal device. At least one of identification information of the first terminal device and a transmission time stamp of the random access request message.
  18. 根据权利要求10至17中任一项所述的方法,其特征在于,所述指示信息承载于所述RAR消息的介质访问控制子头MAC subheader或MAC RAR中。The method according to any one of claims 10 to 17, wherein the indication information is carried in a medium access control subheader MAC subheader or MAC RAR of the RAR message.
  19. 根据权利要求10至18中任一项所述的方法,其特征在于,若所述前导码信息指示的随机接入前导码与所述随机接入请消息携带的随机接入前导码不同,或所述指示信息与所述随机请求消息不匹配,所述方法还包括:The method according to any one of claims 10 to 18, wherein if the random access preamble indicated by the preamble information is different from the random access preamble carried by the random access request message, or The indication information does not match the random request message, and the method further includes:
    所述第一终端设备确定所述RAR消息不属于所述第一终端设备;Determining, by the first terminal device, that the RAR message does not belong to the first terminal device;
    其中,所述指示信息与所述随机接入请求消息不匹配,包括:The indication information does not match the random access request message, and includes:
    所述指示信息包括的资源信息与所述随机接入请求消息占用的资源的第二资源信息不同;和/或The resource information included in the indication information is different from the second resource information of the resource occupied by the random access request message; and/or
    所述指示信息包括的函数值的信息与以所述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息不同;和/或 The information indicating the function value included in the indication information is different from the information of the function value in which the second resource information of the resource occupied by the random access request message is a variable; and/or
    所述指示信息包括的位置信息与所述随机接入请求消息携带的所述第一终端设备的位置信息不同;和/或The location information included in the indication information is different from the location information of the first terminal device carried in the random access request message; and/or
    所述指示信息包括的标识信息与所述随机接入请求消息携带的所述第一终端设备的标识信息不同;和/或The indication information included in the indication information is different from the identifier information of the first terminal device carried in the random access request message; and/or
    所述指示信息包括的发送时间戳与所述随机接入请求消息携带的发送时间戳不同。The indication information includes a sending timestamp that is different from a sending timestamp carried by the random access request message.
  20. 一种网络设备,其特征在于,所述网络设备包括:A network device, where the network device includes:
    接收单元,用于接收第一终端设备发送的随机接入请求消息,所述随机接入请求消息携带随机接入前导码;a receiving unit, configured to receive a random access request message sent by the first terminal device, where the random access request message carries a random access preamble;
    处理单元,用于根据所述随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;a processing unit, configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
    发送单元,用于根据所述RA-RNTI发送随机接入响应RAR消息,所述RAR消息携带前导码信息和指示信息,所述前导码信息用于指示所述随机接入前导码,所述前导码信息和所述指示信息用于接收到所述RAR消息的至少一个终端设备中的所述第一终端设备确定所述RAR消息属于所述第一终端设备。a sending unit, configured to send, according to the RA-RNTI, a random access response RAR message, where the RAR message carries preamble information and indication information, where the preamble information is used to indicate the random access preamble, the preamble The code information and the indication information are used by the first terminal device in the at least one terminal device that receives the RAR message to determine that the RAR message belongs to the first terminal device.
  21. 根据权利要求20所述的网络设备,其特征在于,所述处理单元具体用于:根据所述随机接入请求消息占用的资源的第一资源信息确定所述RA-RNTI;The network device according to claim 20, wherein the processing unit is configured to: determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message;
    所述指示信息包括:所述随机接入请求消息占用的资源的第二资源信息、以所述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息、以及所述随机接入请求消息携带的除所述随机前导码之外的信息中的至少一种,其中,所述第一资源信息和所述第二资源信息不同。The indication information includes: second resource information of a resource occupied by the random access request message, information of a function value of a second resource information of a resource occupied by the random access request message, and the random value At least one of the information other than the random preamble carried by the access request message, where the first resource information and the second resource information are different.
  22. 根据权利要求21所述的网络设备,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源。The network device according to claim 21, wherein the first resource information is used to indicate a frequency domain resource occupied by the random access request message, and the second resource information is used to indicate the random access The time domain resource occupied by the request message.
  23. 根据权利要求21所述的网络设备,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源和时域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源,且所述第一资源信息指示的时域资源的粒度大于所述第二资源信息指示的时域资源的粒度。The network device according to claim 21, wherein the first resource information is used to indicate a frequency domain resource and a time domain resource occupied by the random access request message, and the second resource information is used to indicate a location The time domain resource occupied by the random access request message is used, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  24. 根据权利要求22或23所述的网络设备,其特征在于,所述第二资 源信息具体用于指示所述随机接入请求消息占用的时域资源的起始位置和所述随机接入请求消息占用的时域资源的结束位置中的至少一种。A network device according to claim 22 or 23, wherein said second asset The source information is specifically used to indicate at least one of a start location of a time domain resource occupied by the random access request message and an end location of a time domain resource occupied by the random access request message.
  25. 根据权利要求22至24中任一项所述的网络设备,其特征在于,所述第二资源信息具体用于指示以下信息中的至少一种:The network device according to any one of claims 22 to 24, wherein the second resource information is specifically used to indicate at least one of the following information:
    所述随机接入请求消息占用的第一个子帧的编号;The number of the first subframe occupied by the random access request message;
    所述随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;The number of the first time slot or the first mini time slot occupied by the random access request message;
    所述随机接入请求消息占用的最后一个子帧的编号;The number of the last subframe occupied by the random access request message;
    所述随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。The number of the last time slot or the last mini time slot occupied by the random access request message.
  26. 根据权利要求22至25中任一项所述的网络设备,其特征在于,所述函数值的信息用于指示以下信息中的至少一种:The network device according to any one of claims 22 to 25, wherein the information of the function value is used to indicate at least one of the following information:
    所述RAR消息占用的第一个子帧的编号与所述随机接入请求消息占用的第一个子帧的编号之间的差值;a difference between a number of the first subframe occupied by the RAR message and a number of the first subframe occupied by the random access request message;
    所述RAR消息占用的第一个时隙的编号与所述随机接入请求消息占用的第一个时隙的编号之间的差值,或所述RAR消息占用的第一个迷你时隙的编号与所述随机接入请求消息占用的第一个迷你时隙的编号之间的差值;a difference between a number of a first time slot occupied by the RAR message and a number of a first time slot occupied by the random access request message, or a first mini time slot occupied by the RAR message And a difference between a number and a number of the first minislot occupied by the random access request message;
    所述RAR消息占用的最后一个子帧的编号与所述随机接入请求消息占用的最后一个子帧的编号之间的差值;a difference between a number of a last subframe occupied by the RAR message and a number of a last subframe occupied by the random access request message;
    所述RAR消息占用的最后一个时隙的编号与所述随机接入请求消息占用的最后一个时隙的编号之间的差值,或所述RAR消息占用的最后一个迷你时隙的编号与所述随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。a difference between a number of a last slot occupied by the RAR message and a number of a last slot occupied by the random access request message, or a number and a last mini slot occupied by the RAR message The difference between the numbers of the last minislot occupied by the random access request message.
  27. 根据权利要求21至26中任一项所述的网络设备,其特征在于,所述随机接入请求消息携带的除所述随机前导码之外的信息包括所述第一终端设备的位置信息、所述第一终端设备的标识信息以及所述随机接入请求消息的发送时间戳中的至少一种。The network device according to any one of claims 21 to 26, wherein the information other than the random preamble carried by the random access request message includes location information of the first terminal device, At least one of the identification information of the first terminal device and the transmission timestamp of the random access request message.
  28. 根据权利要求20至27中任一项所述的网络设备,其特征在于,所述指示信息承载于所述RAR消息的介质访问控制子头MAC subheader或MAC RAR中。The network device according to any one of claims 20 to 27, wherein the indication information is carried in a medium access control subheader MAC subheader or MAC RAR of the RAR message.
  29. 一种终端设备,其特征在于,所述终端设备为第一终端设备,所述终端设备包括: A terminal device, wherein the terminal device is a first terminal device, and the terminal device includes:
    发送单元,用于向网络设备发送随机接入请求消息,所述随机接入请求消息携带随机接入前导码;a sending unit, configured to send a random access request message to the network device, where the random access request message carries a random access preamble;
    处理单元,用于根据所述随机接入请求消息确定随机接入无线网络临时标识RA-RNTI;a processing unit, configured to determine, according to the random access request message, a random access radio network temporary identifier RA-RNTI;
    接收单元,用于根据所述RA-RNTI接收所述网络设备发送的随机接入响应RAR消息,所述RAR消息携带前导码信息和指示信息;a receiving unit, configured to receive, according to the RA-RNTI, a random access response RAR message sent by the network device, where the RAR message carries preamble information and indication information;
    所述处理单元还用于:根据所述随机接入请求消息携带的随机接入前导码、所述前导码信息和所述指示信息确定所述RAR消息是否属于所述第一终端设备。The processing unit is further configured to: determine, according to the random access preamble, the preamble information, and the indication information that are included in the random access request message, whether the RAR message belongs to the first terminal device.
  30. 根据权利要求29所述的终端设备,其特征在于,所述处理单元具体用于根据所述随机接入请求消息占用的资源的第一资源信息确定所述RA-RNTI;The terminal device according to claim 29, wherein the processing unit is configured to determine the RA-RNTI according to the first resource information of the resource occupied by the random access request message;
    若所述前导码信息指示的随机接入前导码与所述随机接入请求消息携带的随机接入前导码相同,且所述指示信息包括:所述随机接入请求消息占用的资源的第二资源信息、以所述第二资源信息为变量的函数值的信息、以及所述随机接入请求消息携带的除所述随机前导码之外的信息中的至少一种,If the random access preamble indicated by the preamble information is the same as the random access preamble carried by the random access request message, and the indication information includes: a second resource occupied by the random access request message At least one of resource information, information of a function value having the second resource information as a variable, and information other than the random preamble carried by the random access request message,
    所述处理单元还用于:确定所述RAR消息属于所述第一终端设备;The processing unit is further configured to: determine that the RAR message belongs to the first terminal device;
    其中,所述第一资源信息和所述第二资源信息不同。The first resource information and the second resource information are different.
  31. 根据权利要求30所述的终端设备,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源。The terminal device according to claim 30, wherein the first resource information is used to indicate a frequency domain resource occupied by the random access request message, and the second resource information is used to indicate the random access The time domain resource occupied by the request message.
  32. 根据权利要求30所述的终端设备,其特征在于,所述第一资源信息用于指示所述随机接入请求消息占用的频域资源和时域资源,所述第二资源信息用于指示所述随机接入请求消息占用的时域资源,且所述第一资源信息指示的时域资源的粒度大于所述第二资源信息指示的时域资源的粒度。The terminal device according to claim 30, wherein the first resource information is used to indicate a frequency domain resource and a time domain resource occupied by the random access request message, and the second resource information is used to indicate a location The time domain resource occupied by the random access request message is used, and the granularity of the time domain resource indicated by the first resource information is greater than the granularity of the time domain resource indicated by the second resource information.
  33. 根据权利要求31或32所述的终端设备,其特征在于,所述第二资源信息具体用于指示所述随机接入请求消息占用的时域资源的起始位置和所述随机接入请求消息占用的频域资源的结束位置中的至少一种。The terminal device according to claim 31 or 32, wherein the second resource information is specifically used to indicate a start location of a time domain resource occupied by the random access request message and the random access request message. At least one of the end positions of the occupied frequency domain resources.
  34. 根据权利要求31至33中任一项所述的终端设备,其特征在于,所述第二资源信息具体用于指示以下信息中的至少一种: The terminal device according to any one of claims 31 to 33, wherein the second resource information is specifically used to indicate at least one of the following information:
    所述随机接入请求消息占用的第一个子帧的编号;The number of the first subframe occupied by the random access request message;
    所述随机接入请求消息占用的第一个时隙或第一个迷你时隙的编号;The number of the first time slot or the first mini time slot occupied by the random access request message;
    所述随机接入请求消息占用的最后一个子帧的编号;The number of the last subframe occupied by the random access request message;
    所述随机接入请求消息占用的最后一个时隙或最后一个迷你时隙的编号。The number of the last time slot or the last mini time slot occupied by the random access request message.
  35. 根据权利要求31至34中任一项所述的终端设备,其特征在于,所述函数值的信息用于指示以下信息中的至少一种:The terminal device according to any one of claims 31 to 34, wherein the information of the function value is used to indicate at least one of the following information:
    所述RAR消息占用的第一个子帧的编号与所述随机接入请求消息占用的第一个子帧的编号之间的差值;a difference between a number of the first subframe occupied by the RAR message and a number of the first subframe occupied by the random access request message;
    所述RAR消息占用的第一个时隙的编号与所述随机接入请求消息占用的第一个时隙的编号之间的差值,或所述RAR消息占用的第一个迷你时隙的编号与所述随机接入请求消息占用的第一个迷你时隙的编号之间的差值;a difference between a number of a first time slot occupied by the RAR message and a number of a first time slot occupied by the random access request message, or a first mini time slot occupied by the RAR message And a difference between a number and a number of the first minislot occupied by the random access request message;
    所述RAR消息占用的最后一个子帧的编号与所述随机接入请求消息占用的最后一个子帧的编号之间的差值;a difference between a number of a last subframe occupied by the RAR message and a number of a last subframe occupied by the random access request message;
    所述RAR消息占用的最后一个时隙的编号与所述随机接入请求消息占用的最后一个时隙的编号之间的差值,或所述RAR消息占用的最后一个迷你时隙的编号与所述随机接入请求消息占用的最后一个迷你时隙的编号之间的差值。a difference between a number of a last slot occupied by the RAR message and a number of a last slot occupied by the random access request message, or a number and a last mini slot occupied by the RAR message The difference between the numbers of the last minislot occupied by the random access request message.
  36. 根据权利要求30至35中任一项所述的终端设备,其特征在于,所述随机接入请求消息携带的除所述随机前导码之外的信息包括所述第一终端设备的位置信息、所述第一终端设备的标识信息以及所述随机接入请求消息的发送时间戳中的至少一种。The terminal device according to any one of claims 30 to 35, wherein the information other than the random preamble carried by the random access request message includes location information of the first terminal device, At least one of the identification information of the first terminal device and the transmission timestamp of the random access request message.
  37. 根据权利要求29至36中任一项所述的终端设备,其特征在于,所述指示信息承载于所述RAR消息的介质访问控制子头MAC subheader或MAC RAR中。The terminal device according to any one of claims 29 to 36, wherein the indication information is carried in a medium access control sub-header MAC subheader or MAC RAR of the RAR message.
  38. 根据权利要求29至37中任一项所述的终端设备,其特征在于,若所述前导码信息指示的随机接入前导码与所述随机接入请消息携带的随机接入前导码不同,或所述指示信息与所述随机请求消息不匹配,所述处理单元还用于:确定所述RAR消息不属于所述第一终端设备;The terminal device according to any one of claims 29 to 37, wherein if the random access preamble indicated by the preamble information is different from the random access preamble carried by the random access request message, Or the indication information does not match the random request message, and the processing unit is further configured to: determine that the RAR message does not belong to the first terminal device;
    其中,所述指示信息与所述随机接入请求消息不匹配,包括:The indication information does not match the random access request message, and includes:
    所述指示信息包括的资源信息与所述随机接入请求消息占用的资源的 第二资源信息不同;和/或The resource information included in the indication information and the resource occupied by the random access request message The second resource information is different; and/or
    所述指示信息包括的函数值的信息与以所述随机接入请求消息占用的资源的第二资源信息为变量的函数值的信息不同;和/或The information indicating the function value included in the indication information is different from the information of the function value in which the second resource information of the resource occupied by the random access request message is a variable; and/or
    所述指示信息包括的位置信息与所述随机接入请求消息携带的所述第一终端设备的位置信息不同;和/或The location information included in the indication information is different from the location information of the first terminal device carried in the random access request message; and/or
    所述指示信息包括的标识信息与所述随机接入请求消息携带的所述第一终端设备的标识信息不同;和/或The indication information included in the indication information is different from the identifier information of the first terminal device carried in the random access request message; and/or
    所述指示信息包括的发送时间戳与所述随机接入请求消息携带的发送时间戳不同。 The indication information includes a sending timestamp that is different from a sending timestamp carried by the random access request message.
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