WO2019090646A1 - 通信装置的随机接入方法、装置和存储介质 - Google Patents

通信装置的随机接入方法、装置和存储介质 Download PDF

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Publication number
WO2019090646A1
WO2019090646A1 PCT/CN2017/110285 CN2017110285W WO2019090646A1 WO 2019090646 A1 WO2019090646 A1 WO 2019090646A1 CN 2017110285 W CN2017110285 W CN 2017110285W WO 2019090646 A1 WO2019090646 A1 WO 2019090646A1
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Prior art keywords
rrc message
entity
random access
communication device
rrc
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PCT/CN2017/110285
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English (en)
French (fr)
Inventor
单宝堃
王宏
罗林杰奥黛尔
马丁布莱恩•亚历山大
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17931245.9A priority Critical patent/EP3697163A4/en
Priority to JP2020525864A priority patent/JP7111812B2/ja
Priority to CN201780096428.2A priority patent/CN111295924B/zh
Priority to PCT/CN2017/110285 priority patent/WO2019090646A1/zh
Publication of WO2019090646A1 publication Critical patent/WO2019090646A1/zh
Priority to US16/869,407 priority patent/US11516852B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to communication technologies, and in particular, to a random access method, apparatus, and storage medium for a communication device.
  • the 3rd Generation Partnership Project (3GPP) standard has been based on cellular networks, and proposes solutions for the characteristics of the Internet of Things, such as the Narrow Band Internet of Things (NB-IoT) network.
  • MTC machine type communication
  • NB-IoT Narrow Band Internet of Things
  • LTE Long Term Evolution
  • the MTC network is part of the traditional cellular network, and the terminal cost is slightly higher than that of the NB-IoT, which is suitable for the relatively high-speed and mobility IoT services.
  • NB-IoT and MTC continue to optimize the small packet transmission characteristics of the Internet of Things in the Rel-15 version, and are designing new technologies for data transmission in the random access process to save the delay and power of small packet transmission. Consumption. But this new design also brings new challenges. For example, in the conventional random access with the purpose of establishing a Radio Resource Control (RRC) connection, the inter-layer interaction between the RRC layer and the Media Access Control (MAC) layer is relatively simple, usually only in the The initial and end (including abnormal exit) phases of random access have interaction. If the data is to be transmitted simultaneously in the random access process, the backoff mechanism may be involved due to network resource shortage or air interface transmission failure. The interaction between the RRC layer and the MAC layer may be more complicated.
  • RRC Radio Resource Control
  • MAC Media Access Control
  • the present application provides a random access method, device and storage medium for a communication device, and designs a new random access scheme for NB-IoT and MTC to meet new requirements for transmitting data in a random access process.
  • a first aspect of the present application provides a random access method for a communication device, where the communication device includes a MAC entity, and the method includes:
  • the MAC entity determines a first random access preamble, and the first random access preamble is used to indicate that the data is random. Access process Transmitting the first RRC message.
  • the first random access preamble can notify the receiving end to transmit data other than signaling during the random access procedure.
  • the role of the first random access preamble can be expressed in multiple ways.
  • the first random access preamble may be used to indicate that an RRC message carrying data to be transmitted is sent during a random access procedure; and, for example, the first random access preamble may be used to indicate a random access procedure.
  • the first random access preamble may be used to send data to be transmitted by using an RRC message in a random access procedure; for example, the first random access preamble may be used for
  • the data to be transmitted is sent in the MSG3 of the random access procedure.
  • the first random access preamble may be used to indicate that the data to be transmitted is sent by using a message of the random access procedure.
  • the expression of the action of the first random access preamble is not limited in this application.
  • the first random access preamble and the existing random access preamble may use different resources, so that the receiving end can distinguish the first random access preamble and the current by using resources used by the preamble.
  • the dimensions of the resource include the time domain (the period of transmitting the preamble resource, the duration is the length and the start time, etc.), the frequency domain (the carrier used to transmit the preamble, the subcarrier, etc.) and the code domain (the codeword used by the preamble), etc. .
  • the difference in resources may be different in any one or more of the time domain, the frequency domain, and the code domain, and the application does not limit this.
  • the MAC entity may obtain the resources that can be used by the first random access preamble and the existing random access preamble in multiple manners, for example, by acquiring related configurations from an upper entity, and the like is also not limited. Based on a scheme using different resources, the above method can be expressed as:
  • the MAC entity determines a resource occupied by the first random access preamble, and the first random access preamble The occupied resource is used to indicate that the first RRC message is sent during a random access procedure.
  • the expression of the role of the resource occupied by the first random access preamble may be similar to the description of the role of the first random access preamble, and is not described herein.
  • the MAC entity determines whether the amount of data supported by the coverage level satisfies the size of the first RRC message, and may reduce information required for interaction between the MAC entity and other entities (eg, RRC entities).
  • it also includes:
  • the MAC entity sends the first RRC message to the lower layer entity.
  • it also includes:
  • the MAC entity sends first indication information to an upper layer entity, where the first indication information is used to indicate that the The first RRC message is sent during a random access procedure.
  • the MAC entity needs to determine whether the amount of data supported by the coverage level of the communication device satisfies the size of the first RRC message, when the size of the first RRC message is less than or equal to the data supported by the coverage level.
  • the amount of data supported by the coverage level satisfies the size of the first RRC message, otherwise the amount of data supported by the coverage level does not satisfy the size of the first RRC message.
  • the amount of data supported by the MAC entity to obtain the coverage level of the communication device may be in various ways, such as The configuration information of the communication device or the configuration information of the network is obtained from the upper layer entity, and the present solution is not limited.
  • the first purpose of the first indication information is to inform the RRC entity that the MAC entity determines that the data cannot be transmitted in the random access process. It can be understood that the function of the first indication information can be expressed in multiple manners, for example, the first The indication information may be used to indicate that the first RRC message cannot be sent in the random access procedure; for example, the first indication information may be used that the amount of data supported by the current coverage level does not satisfy the size of the first RRC message. For example, the first indication information may be used to indicate that the first RRC message cannot be transmitted; for example, the first indication information may be used to indicate that an RRC message that does not include data is needed; and, for example, the first indication information may be used.
  • the data is not used in the process of indicating the random access, or the data cannot be transmitted during the random access process. This application does not limit the application.
  • it also includes:
  • the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • An RRC message If the resource does not meet the size of the first RRC message, the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • the purpose of the second indication information is to indicate that the resource is insufficient to transmit the first RRC message during the transmission process.
  • the role of the second indication information may be expressed in multiple manners, for example, the second The indication information may be used to indicate that the uplink resource is insufficient to transmit the first RRC message; for example, the second indication information may be used to indicate that the second RRC message that does not include the transmission data is obtained; and, for example, the second indication information may be used.
  • the instruction fails to transmit the first RRC message; for example, the second indication information may be used to indicate that the data cannot be transmitted during the random access process, and the application does not limit the application.
  • it also includes:
  • the MAC entity sends the second RRC message to the lower layer entity;
  • the MAC entity sends the second RRC message to the lower layer entity.
  • a second aspect of the present application provides a random access method of a communication device, where the communication device includes an RRC entity, and the method includes:
  • the RRC entity sends a first RRC message to a lower layer entity, where the first RRC message includes data to be transmitted.
  • it also includes:
  • the RRC entity receives the indication information sent by the lower layer entity, where the indication information is used to indicate that the first RRC message cannot be sent in a random access procedure.
  • the amount of data supported by the coverage level of the communication device does not satisfy the size of the first RRC message; or the resource allocated to the communication device does not satisfy the size of the first RRC message.
  • it also includes:
  • the RRC entity lower layer entity second RRC message, the second RRC message does not include the to-be-sent data.
  • the indication message is the first indication information in the foregoing first aspect; the resource allocated to the communication device Not satisfied
  • the indication information is the second indication information in the foregoing first aspect, and the specific meaning thereof refers to the description in the first aspect.
  • a third aspect of the present application provides a random access method of a communication device, where the communication device includes a MAC entity, and the method includes:
  • the MAC entity Receiving, by the MAC entity, the first indication information, where the first indication information is used to indicate that the data to be transmitted is transmitted in a random access procedure;
  • the MAC entity returns the coverage level of the communication device to the upper layer entity.
  • the meaning of the first indication information is different from that in the foregoing solution.
  • the purpose of the first indication information sent by the RRC entity to the MAC entity is to obtain the coverage level. Therefore, the first indication information may indicate that the transmission is to be performed in the random access process. In addition to transmitting the data, the first indication information may also be used to indicate that the coverage level is obtained, or the first indication information may also be used to indicate that the MAC entity returns the coverage level to the RRC entity, etc., which is not limited in this application.
  • the method further includes:
  • the MAC entity determines a first random access preamble, where the first random access preamble is used to indicate that the first RRC message is sent in a random access procedure.
  • the method further includes:
  • the MAC entity sends the first RRC message to the lower layer entity.
  • the method further includes:
  • the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • An RRC message If the resource does not meet the size of the first RRC message, the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • the purpose of the second indication information is also to indicate that the resource is insufficient to transmit the first RRC message during the transmission, so the second indication information may indicate that the uplink resource is insufficient to transmit the first RRC message, or indicate that the acquisition is not
  • the second RRC message with the transmission data is included, or the first RRC message may be transmitted, or the data may not be transmitted during the random access process.
  • the method further includes:
  • the MAC entity sends the second RRC message to the lower layer entity.
  • a fourth aspect of the present application provides a random access method of a communication device, where the communication device includes an RRC entity, and the method includes:
  • the RRC entity sends the first RRC message to the lower layer entity, where the first RRC message includes a to-be-transmitted data.
  • the method further includes:
  • the RRC entity receives the second indication information that is sent by the lower layer entity, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure;
  • the RRC entity sends a second RRC message to the lower layer entity, where the second RRC message does not include the to-be-sent data.
  • it also includes:
  • the RRC entity sends a second RRC message to the lower layer entity; wherein the second RRC message does not include The data to be sent.
  • the RRC entity needs to determine whether the amount of data supported by the coverage level of the communication device satisfies the size of the first RRC message, when the size of the first RRC message is smaller than Or equal to the amount of data supported by the coverage level, the amount of data supported by the coverage level satisfies the size of the first RRC message, otherwise the amount of data supported by the coverage level does not satisfy the size of the first RRC message.
  • the upper layer entity includes an entity located on the upper layer of the current entity that is adjacent to or not adjacent to the current entity, for example, the RRC entity and the MAC entity may also include Other functional entities, such as Radio Link Control (RLC) entities.
  • RLC Radio Link Control
  • a fifth aspect of the present application provides a MAC entity, which may be used to implement the method of the first aspect.
  • the MAC entity is used to:
  • the coverage level of the communication device determines a first random access preamble, where the first random access preamble is used to indicate that during the random access process Sending the first RRC message.
  • the MAC entity is further configured to:
  • the MAC entity is further configured to:
  • the upper layer entity sends first indication information, where the first indication information is used to indicate that the random access procedure cannot be performed. Transmitting the first RRC message.
  • the MAC entity is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the MAC entity is further configured to:
  • the lower layer entity sends the second RRC message; or,
  • the sixth aspect of the present application provides an RRC entity, which can be used to implement the method of the second aspect.
  • the RRC entity is used to:
  • the RRC entity is further configured to:
  • the amount of data supported by the coverage level of the communication device does not satisfy the size of the first RRC message
  • the resources allocated to the communication device do not satisfy the size of the first RRC message.
  • the RRC entity is further configured to:
  • Downlink entity second RRC message the second RRC message does not include the to-be-sent data.
  • the seventh aspect of the present application provides a MAC entity that can be used to implement the method of the third aspect.
  • the MAC entity is used to:
  • the MAC entity is further configured to:
  • the first random access preamble being used to indicate that the first RRC message is sent in a random access procedure.
  • the MAC entity is further configured to:
  • the MAC entity is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the MAC entity is further configured to:
  • An eighth aspect of the present application provides an RRC entity, which can be used to implement the method of the fourth aspect.
  • the RRC entity is used to:
  • the RRC entity is further configured to:
  • the RRC entity is further configured to:
  • the present application further provides a communication apparatus, including the MAC entity provided by any of the foregoing fifth aspect or the seventh aspect.
  • the present application further provides a communication apparatus, including the RRC entity provided by any of the foregoing sixth aspect or the eighth aspect.
  • the present application further provides a communication apparatus, including the MAC entity provided by any implementation manner of the fifth aspect, and the RRC entity provided by any implementation manner of the sixth aspect.
  • the present application further provides a communication apparatus, including the MAC entity provided by any implementation manner of the seventh aspect, and the RRC entity provided by any implementation manner of the eighth aspect.
  • a ninth aspect of the present application provides a communication apparatus comprising: a memory and a processor for storing computer instructions, the processor for executing the computer instructions to implement the method of any one of the above first to fourth aspects. :
  • a tenth aspect of the present application provides a communication apparatus, including: a memory and a processor for storing computer instructions, wherein the processor is configured to execute the computer instruction to implement the functions of any one of the fifth to eighth aspects .
  • the above communication device may be a terminal, or a communication chip, a baseband chip, or a system-on-a-chip chip.
  • the number of processors is at least one, and an execution instruction for executing the memory storage, that is, a computer program.
  • the eleventh aspect of the present application further provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any of the implementations of the first aspect.
  • the twelfth aspect of the present application further provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any implementation of the second aspect.
  • the thirteenth aspect of the present application further provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any of the implementations of the third aspect.
  • the fourteenth aspect of the present application further provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any implementation of the fourth aspect.
  • a fifteenth aspect of the present application provides a program product, the computer instructions being stored in a readable storage medium, the at least one processor of the communication device reading and executing the computer instructions from the readable storage medium such that the communication device A random access method of the communication device according to any of the preceding aspects.
  • a sixteenth aspect of the present application provides a program product, the computer instructions being stored in a readable storage medium, the at least one processor of the communication device reading and executing the computer instructions from the readable storage medium such that the communication device A random access method of the communication device according to any of the second aspects.
  • a seventeenth aspect of the present application provides a program product, the computer instructions being stored in a readable storage medium, the at least one processor of the communication device reading and executing the computer instructions from the readable storage medium such that the communication device A random access method of the communication device according to any one of the third aspects.
  • the eighteenth aspect of the present application provides a program product, the computer instructions being stored in a readable storage medium, the at least one processor of the communication device reading and executing the computer instructions from the readable storage medium such that the communication device A random access method of the communication device according to any of the fourth aspects.
  • the random access method, device and storage medium of the communication device provided by the present application determine an appropriate random access preamble by determining whether the amount of data supported by the coverage level of the communication device satisfies the size of the first RRC message, so that The RRC message carrying the data to be transmitted is sent in the random access process, and the data early transmission is realized, so that the data early transmission process and the traditional random access procedure are flexibly switched, which is beneficial to reducing the power consumption and transmission delay of the communication device.
  • the MAC entity determines whether to perform data transmission in the random access process according to the coverage level, avoids multiple signaling interactions with the upper layer entity, saves signaling overhead, and improves transmission efficiency.
  • the RRC entity obtains the coverage level from the MAC entity, and determines whether data transmission is performed in the random access process, and generates a corresponding RRC message according to the determined result, so as to avoid that the amount of data supported by the coverage level is not satisfied.
  • the RRC message needs to generate an RRC message again in the subsequent process to improve transmission efficiency.
  • FIG. 1 is a schematic flowchart of data transmission in a random access phase
  • FIG. 2 is a schematic diagram of an application scenario of a random access method of a communication device provided by the present application
  • FIG. 3 is a schematic diagram of interaction of a first embodiment of a random access method of a communication device according to the present application
  • FIG. 4 is a schematic diagram of interaction of a second embodiment of a random access method of a communication device according to the present application.
  • FIG. 5 is a schematic diagram of interaction of a third embodiment of a random access method of a communication device according to the present application.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a communication device provided by the present application.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of a communication device provided by the present application.
  • FIG. 1 is a schematic flow chart of data transmission during a random access phase.
  • the process of transmitting data during the random access phase is as follows:
  • the base station performs random access configuration.
  • the base station broadcasts related configurations for transmitting data during the random access procedure.
  • the data transmission in the random access process may be referred to as early data transmission (EDT); the configuration may be understood as the relevant configuration of the EDT.
  • the related configuration includes a transport block size (TBS) of the uplink data volume of the EDT supported by each coverage level.
  • TBS transport block size
  • the UE determines whether to use the EDT according to its own coverage level and the amount of uplink data. If the data volume is greater than the data volume control threshold of the current coverage level, the traditional random access procedure is initiated. If the amount of data is less than or equal to the data amount control threshold of the current coverage level, the EDT process is initiated from the next step 1.
  • the UE initiates random access, and indicates that the data is transmitted early in the random access process through the preamble.
  • the meaning is that the UE uses a specific random access resource to initiate random access, thereby indicating that the random access is an EDT process.
  • the base station returns a random access response (RAR) and carries uplink resources.
  • RAR random access response
  • the base station replies to the RAR according to the random access preamble sent by the UE, and carries therein a resource (UL grant) for uplink data transmission, where the resource may not be equal to the TBS broadcasted in step 0.
  • the UE sends an RRC message on the uplink resource.
  • the meaning is that the UE decides whether to carry data in message 3 (MSG3) according to the UL grant in the RAR. If the UL grant is insufficient to carry the uplink data, the traditional RRC connection setup request message is sent to start establishing an RRC connection. If the UL grant is sufficient to carry the uplink data, an RRC message containing the data is sent in message 3.
  • the base station sends downlink data to the UE. After receiving the message 3 carrying the data, the base station delivers the uplink data to the core network. If the core network has downlink data to the UE, the base station may select to send the message to the UE in message 4, and let the UE enter idle after message 4. state.
  • the RRC connection setup request message is usually prepared by the RRC layer of the terminal, and then delivered to the MAC layer for transmission.
  • the MAC layer initiates random access, and transmits the RRC message to the base station in message 3, and receives the downlink RRC connection setup message in message 4.
  • the MAC layer will notify the RRC layer and submit the corresponding message to the RRC layer. If the random access fails, for example, the contention failure fails or the network temporarily does not want the terminal to access due to the load, the MAC layer will notify the RRC layer random access failure.
  • the MAC entity and the MAC layer all represent the medium in the communication device responsible for controlling and connecting the physical layer
  • the RRC entity, RRC, RRC layer, RRC protocol layer, etc. all indicate the function of implementing radio resource control in the communication device. Entity, there is no restriction on the specific application of this application.
  • the communication device may be a terminal, a UE, or the like, and may also be a device including a communication function, such as a specific mobile phone, a computer, various types of sensors, and a communication chip.
  • the present application proposes a random access method of a communication device. This method gives an interaction between the RRC entity and the MAC entity suitable for the data early transmission process.
  • FIG. 2 is a schematic diagram of an application scenario of the random access method of the communication device provided by the present application, as shown in FIG. 2,
  • a network device for example, a base station
  • various types of terminals connected to the network device and specific devices, such as a mobile phone, a computer, various types of sensors, and a communication chip, may be collectively referred to as a communication device.
  • the communication device involved in the present application includes an RRC entity and a MAC entity, and the MAC entity and the RRC can perform distributed setting, which is not limited in this application.
  • data to be transmitted, data to be transmitted, service data, data, and the like represent the same meaning.
  • FIG. 3 is a schematic diagram of interaction of the first embodiment of the random access method of the communication device provided by the present application.
  • the RRC entity generates an RRC message each time, and initiates early data transmission in the initial stage (early data). Transmission, referred to as EDT), the data transmission in the random access process is determined by the MAC entity.
  • EDT early data transmission in the initial stage
  • the specific interaction process of the method is:
  • Step 1 The RRC entity generates an RRC message including data to be transmitted, and includes the data to be transmitted.
  • the RRC message is sent to the MAC entity.
  • the information of the interaction between the RRC entity and the MAC entity may be classified into service data and signaling.
  • the data to be transmitted refers to the service data that needs to be carried in the RRC message, and is not RRC signaling.
  • the information interaction between the RRC entity and the MAC entity can also be understood as the transmission of information or the delivery of information, which is not limited in this application.
  • Step 2 After receiving the RRC message that is sent by the RRC entity and including the data to be transmitted, the MAC entity can determine whether the data volume corresponding to the coverage level satisfies the RRC message that includes the data to be transmitted.
  • the specific meaning of the step is that the RRC message including the data to be transmitted triggers the random access procedure, and the MAC entity determines the coverage level of the communication device according to the measured RSRP, and controls according to the data volume corresponding to the pre-configured coverage level of the base station.
  • a threshold determining whether the data amount corresponding to the coverage level of the communication device can transmit the RRC message including the data to be transmitted, that is, determining whether the size of the RRC message including the data to be transmitted is greater than a data volume control threshold corresponding to the coverage level, if If the size of the RRC message to be transmitted is greater than the data size control threshold corresponding to the coverage level, the MAC entity does not perform the data early transmission, that is, the data is not transmitted during the random access process; otherwise, the MAC address is satisfied. The entity decides to transmit data early, that is, to transmit data during the random access process.
  • the MAC entity determines whether to perform data transmission in the random access process according to the coverage level, avoids multiple signaling interactions with the upper layer entity, saves signaling overhead, and improves transmission efficiency.
  • Step 3 If the MAC entity determines that the result is not satisfied, the MAC entity returns indication information to the RRC entity, where the indication information is used to indicate that data is not transmitted during the random access procedure.
  • the main purpose of the indication information is to inform the RRC entity that the judgment result of the MAC entity is that the data cannot be transmitted in the random access process.
  • the function of the indication information can be expressed in multiple manners, for example, the indication information can be And indicating that the RRC message that includes the data to be transmitted cannot be sent in the random access procedure; and, for example, the indication information may be used, where the amount of data supported by the current coverage level does not satisfy the size of the RRC message that includes the data to be transmitted;
  • the indication information may be used to indicate that the RRC message that includes the data to be transmitted cannot be transmitted; for example, the indication information may be used to indicate that an RRC message that does not include data is needed; and, for example, the first indication information may be used to indicate The data early transmission process is not used in the random access process, or data cannot be transmitted during the random access process. This application does not limit the application.
  • Step 4 After receiving the indication information indicating that the data is not transmitted in the random access procedure, the RRC entity generates an RRC message that does not include the data to be transmitted, that is, generates a legacy RRC message, and sends the legacy RRC message to the MAC entity.
  • Step 5 The MAC entity performs random access according to the traditional RRC message, that is, sends a random access preamble, and receives a random access response returned by the base station, and does not include the data to be transmitted on the uplink resource in the random access response.
  • the RRC message is sent.
  • Step 6 If the MAC entity determines that the result is satisfied, the MAC entity sends a specific random access preamble to the lower layer entity, and initiates an early data transmission process.
  • the MAC entity determines a specific random access preamble, and sends the specific random access preamble to the lower layer entity, where the random access preamble indicates that data needs to be transmitted during the random access process.
  • the specific indication manner is not limited in this application, so that the base station can pass the random connection when the lower layer entity interacts with the base station.
  • the preamble code determines that the random access needs to transmit data, and allocates resources for the communication device.
  • the MAC entity receives the random access response RAR returned by the base station from the lower layer entity, where the RAR carries the uplink resource, and the MAC entity sends an RRC message including the data to be transmitted on the uplink resource, or selects an appropriate resource in the uplink resource allocated by the base station. Upload all or part of the RRC message containing the data to be transmitted. That is, an RRC message containing data to be transmitted is transmitted in the message 3 shown in FIG.
  • the MAC entity may perform the determination again according to the resources carried in the RAR to determine whether the transmission data can be transmitted in the random access process.
  • the specific process is as follows: Step 7-9.
  • Step 7 If the resource is small, send an indication message to the RRC entity, indicating that the data cannot be transmitted during the random access procedure.
  • the purpose of the indication information is also to indicate that the resource is insufficient to transmit the first RRC message during the transmission, that is, the configured uplink resource is small. It can be understood that the indication information can be used in various manners, for example, the indication information can be used to indicate that the uplink resource is insufficient to transmit the first RRC message; for example, the indication information can be used to indicate that the acquisition does not include the band.
  • a second RRC message for transmitting data for example, the indication information may be used to indicate that the transmission of the first RRC message fails; and, for example, the indication information may be used to indicate that data cannot be transmitted during the random access procedure, etc.
  • the application is not restricted.
  • Step 8 After receiving the indication information indicating that the data cannot be transmitted in the random access process, the RRC entity generates an RRC message that does not include the data to be transmitted, that is, generates a legacy RRC message, and sends the legacy RRC message to the MAC entity.
  • Step 9 The MAC entity receives the legacy RRC message, and sends the legacy RRC message that does not include the data to be transmitted on the uplink resource in the random access response. That is, the legacy RRC message is transmitted in the message 3 shown in FIG.
  • the random access method of the communication device provides an interaction scheme between the MAC entity and the RRC entity in the random access process, so that the data early transmission process and the traditional random access process can be flexibly switched, and The data early transmission process can seamlessly fall back to the traditional random access procedure, without resending the random access preamble, and without re-accepting the random access response, saving signaling overhead, and facilitating communication device to reduce power consumption and transmission. Delay.
  • FIG. 4 is a schematic diagram of interaction of the second embodiment of the random access method of the communication device provided by the present application.
  • the RRC entity simultaneously generates two RRC messages, one of which includes data to be transmitted, and the other does not include To transmit data, the data transmission in the random access process is determined by the MAC entity, and the specific interaction process of the method is:
  • Step 1 The RRC entity generates an RRC message including the data to be transmitted and a legacy RRC message, and simultaneously sends the RRC message including the to-be-transmitted data and the legacy RRC message to the MAC entity.
  • Step 2 After receiving the RRC message and the legacy RRC message that are sent by the RRC entity, the MAC entity can determine whether the data volume corresponding to the coverage level satisfies the RRC message that includes the data to be transmitted.
  • the specific meaning of this step is that the MAC entity starts the random access process, based on the measured RSRP. Determining the coverage level of the communication device, and determining the threshold according to the data amount corresponding to the coverage level pre-configured by the base station, and determining whether the data volume corresponding to the coverage level of the communication device can transmit the RRC message including the data to be transmitted, that is, determining the Whether the size of the RRC message including the data to be transmitted is greater than the data volume control threshold corresponding to the coverage level. If the size of the RRC message including the data to be transmitted is greater than the data volume control threshold corresponding to the coverage level, the content is not satisfied, that is, the MAC entity decides not to perform. The data is transmitted early, that is, no data is transmitted during the random access process; otherwise, the MAC entity determines to perform early data transmission, that is, transmits data in the random access process.
  • Step 3 If the MAC entity determines that the result is not satisfied, the MAC entity returns indication information to the RRC entity, where the indication information is used to indicate that data is not transmitted during the random access procedure.
  • Step 4 The MAC entity performs random access according to the traditional RRC message, that is, sends a random access preamble, and receives a random access response returned by the base station, and does not include the data to be transmitted on the uplink resource in the random access response.
  • the RRC message is sent.
  • the RRC entity does not need to generate an RRC message after receiving the indication information indicating that the data is not transmitted in the random access process, and the MAC entity directly performs random access according to the previously received traditional RRC message.
  • Step 5 If the MAC entity determines that the result is satisfied, the MAC entity sends a specific random access preamble to the lower layer entity, and initiates an early data transmission process.
  • the meaning of the scheme is that the MAC entity determines a specific random access preamble and sends the specific random access preamble to the lower layer entity, where the random access preamble indicates that data needs to be transmitted during the random access process.
  • the specific indication manner is not limited in this application, so that when the lower layer entity interacts with the base station, the base station can determine, by using the random access preamble, that the random access needs to transmit data, and allocate resources for the communication device.
  • the MAC entity receives the random access response RAR returned by the base station from the lower layer entity, where the RAR carries the uplink resource, and the MAC entity sends an RRC message including the data to be transmitted on the uplink resource, or selects an appropriate resource in the uplink resource allocated by the base station. Upload all or part of the RRC message containing the data to be transmitted. That is, an RRC message containing data to be transmitted is transmitted in the message 3 shown in FIG.
  • the MAC entity may perform the determination again according to the resources carried in the RAR to determine whether the transmission data can be transmitted in the random access process.
  • the specific process is as follows: Steps 6 and 7.
  • Step 6 If the resource is small, send an indication message to the RRC entity, indicating that the data cannot be transmitted during the random access procedure.
  • the meaning of the indication information in this step is similar to the meaning of the indication information in step 7 in the first embodiment, and details are not described herein again.
  • the MAC entity when the MAC entity sends the RRC message that includes the data to be transmitted, it is found that the configured uplink resource is insufficient to transmit the RRC message that includes the data to be transmitted, and only needs to indicate that the data cannot be transmitted during the random access process, It is necessary to instruct the RRC entity to generate a legacy RRC message.
  • Step 7 The MAC entity sends the legacy RRC message that does not include the data to be transmitted on the uplink resource in the random access response according to the previously received traditional RRC message. That is, the legacy RRC message is transmitted in the message 3 shown in FIG.
  • the random access method of the communication device provides an interaction scheme between a MAC entity and an RRC entity in a random access procedure, and the MAC entity determines to transmit two according to the data volume threshold and the resource size. Which of the RRC messages does not need to generate an RRC message in the random access process, so that the data early transmission process and the traditional random access process can be flexibly switched, and can seamlessly fall back to the traditional in the early data transmission process.
  • the random access procedure eliminates the need to resend the random access preamble and does not need to re-accept the random access response, which saves signaling overhead and is beneficial to the communication device to reduce power consumption and transmission delay.
  • FIG. 5 is a schematic diagram of interaction of the third embodiment of the random access method of the communication device provided by the present application. As shown in FIG. 5, in the initial stage of the solution, whether the conventional random access or the EDT is initiated by the RRC entity is determined.
  • the specific interaction process of the method is:
  • Step 1 The RRC entity sends an indication message to the MAC entity indicating that data needs to be transmitted during the random access procedure.
  • the meaning of the indication information is different from the foregoing solution.
  • the purpose of the RRC entity sending the indication information to the MAC entity is to obtain the coverage level. Therefore, the indication information may not only transmit the data to be transmitted in the random access process, but also The indication information may also be used to indicate that the coverage level is obtained, or the indication information may also be used to indicate that the MAC entity returns the coverage level to the RRC entity, etc., which is not limited in this application. .
  • Step 2 After receiving the indication information, the MAC entity determines, according to the measured RSRP, the coverage level of the communication device, and the MAC entity sends the coverage level to the RRC entity.
  • Step 3 The RRC entity determines, according to the received coverage level, whether the data amount corresponding to the coverage level satisfies an RRC message that includes data to be transmitted.
  • the specific meaning of the step is that the RRC entity controls the threshold according to the data volume corresponding to the coverage level pre-configured by the base station, and determines whether the data volume corresponding to the coverage level of the communication device can transmit the RRC message including the data to be transmitted, that is, the included Whether the size of the RRC message for transmitting data is greater than the data amount control threshold corresponding to the coverage level. If the size of the RRC message including the data to be transmitted is greater than the data volume control threshold corresponding to the coverage level, the RRC entity determines not to perform the data early. The data is not transmitted during the random access process; otherwise, the RRC entity decides to perform early data transmission, that is, data is transmitted during the random access process.
  • the RRC entity obtains the coverage level from the MAC entity, and determines whether to perform data transmission in the random access process, and generates a corresponding RRC message according to the determined result, so as to avoid generating an RRC that does not satisfy the data volume supported by the coverage level.
  • the message needs to generate the RRC message again in the subsequent process to improve the transmission efficiency.
  • Step 4 If the RRC entity determines that the result is not satisfied, the traditional RRC message is sent to the MAC entity.
  • Step 5 The MAC entity performs random access according to the traditional RRC message, and sends a random access preamble to receive the random access response returned by the base station, and the RRC that does not include the data to be transmitted is received on the uplink resource in the random access response. The message is sent.
  • Step 6 If the RRC entity determines that the result is satisfied, the RRC entity sends an RRC message containing the data to be transmitted to the MAC entity.
  • Step 7 The MAC entity receives an RRC message containing data to be transmitted, and initiates an early data transmission process.
  • the MAC entity determines a specific random access preamble, and sends the specific random access preamble to the lower layer entity, where the random access preamble indicates that data needs to be transmitted during the random access process, and the specific indication manner is The restriction is not performed, so that when the lower layer entity interacts with the base station, the base station can determine, by using the random access preamble, that the random access needs to transmit data, and allocate resources for the communication device.
  • the MAC entity receives the base from the underlying entity
  • the RAR is returned by the station, and the RAR carries the uplink resource.
  • the MAC entity sends an RRC message containing the data to be transmitted on the uplink resource, or selects an appropriate resource in the uplink resource allocated by the base station to upload all or part of the RRC message for transmitting data. That is, an RRC message containing data to be transmitted is transmitted in the message 3 shown in FIG.
  • the MAC entity may transmit an RRC message including data to be transmitted according to the resource allocated by the base station.
  • the MAC entity may further perform the judgment according to the resources carried in the RAR to determine whether the transmission data can be transmitted in the random access process, and the specific process is similar to the first and second embodiments. If the resource is small, an indication is sent to the RRC entity indicating that the data cannot be transmitted during the random access procedure. That is, it indicates that the configured uplink resource is small, and is insufficient to transmit an RRC message including data to be transmitted.
  • the RRC entity When the RRC message containing the data to be transmitted is sent by the MAC entity, it is found that the configured uplink resource is insufficient to transmit the RRC message including the data to be transmitted, and the RRC entity needs to be instructed to send the traditional RRC message.
  • the RRC entity After receiving the indication information indicating that the data cannot be transmitted in the random access process, the RRC entity generates a legacy RRC message that does not include the data to be transmitted, and sends the legacy RRC message to the MAC entity.
  • the MAC entity receives the legacy RRC message and sends the legacy RRC message that does not include the data to be transmitted on the uplink resource in the random access response. That is, the legacy RRC message is transmitted in the message 3 shown in FIG.
  • the random access method of the communication device provides an interaction scheme between a MAC entity and an RRC entity in a random access procedure.
  • the RRC entity determines whether to perform data.
  • the RRC layer makes a decision after knowing the coverage level of the communication device, and determines whether the RRC message sent to the MAC entity includes the data to be transmitted according to the decision result, so that the data early transmission process and the traditional random access process can be flexible. Switching, and seamlessly fall back to the traditional random access procedure in the early data transmission process, without resending the random access preamble, and without re-accepting the random access response, saving signaling overhead and facilitating the communication device Reduce power consumption and transmission delay.
  • the RRC entity carries the data to be transmitted in the RRC message and transmits the data to the MAC entity, and then transmits the RRC message carrying the data in the random access process.
  • whether the data is transmitted in the random access procedure may still be determined by the MAC entity or the RRC entity.
  • the MAC entity may receive the RRC transmitted by the RRC entity.
  • the MAC entity carries the to-be-transmitted data in an RRC message for transmission.
  • the entity to be transmitted is carried in the RRC message by which entity, and the application does not limit this.
  • whether to transmit non-signaling data such as service data in the random access process may be determined by the MAC entity, or may be The RRC entity determines that the random access method includes at least the following specific implementations based on the foregoing embodiments:
  • the MAC entity of the communication device receives the first RRC message from the upper layer entity, where the first RRC message includes data to be transmitted; if the amount of data supported by the coverage level of the communication device satisfies the The size of an RRC message, the MAC entity determines a first random access preamble, and the first random access preamble is used to indicate that the first RRC message is sent in a random access procedure.
  • the upper layer entity may be an RRC entity, and the first RRC message is sent by the RRC entity to the MAC entity. of. That is, the RRC entity sends a first RRC message to the lower layer entity, where the first RRC message includes data to be transmitted.
  • the first random access preamble can notify the receiving end to transmit data other than signaling during the random access procedure.
  • the role of the first random access preamble can be expressed in multiple ways. For example, the first random access preamble may be used to indicate that an RRC message carrying data to be transmitted is sent during a random access procedure; and, for example, the first random access preamble may be used to indicate a random access procedure.
  • the first random access preamble may be used to send data to be transmitted by using an RRC message in a random access procedure; for example, the first random access preamble may be used for The data to be transmitted is sent in the MSG3 of the random access procedure.
  • the first random access preamble may be used to indicate that the data to be transmitted is sent by using a message of the random access procedure.
  • the expression of the action of the first random access preamble is not limited in this application.
  • the first random access preamble and the existing random access preamble may use different resources, so that the receiving end can distinguish the first random access preamble and the current by using resources used by the preamble.
  • the dimensions of the resource include the time domain (the period of transmitting the preamble resource, the duration is the length and the start time, etc.), the frequency domain (the carrier used to transmit the preamble, the subcarrier, etc.) and the code domain (the codeword used by the preamble), etc. .
  • the difference in resources may be different in any one or more of the time domain, the frequency domain, and the code domain, and the application does not limit this.
  • the MAC entity may obtain the resources that can be used by the first random access preamble and the existing random access preamble in multiple manners, for example, by acquiring related configurations from an upper entity, and the like is also not limited.
  • the solution further includes:
  • the MAC entity sends the first RRC message to the lower layer entity.
  • the solution further includes:
  • the MAC entity sends first indication information to an upper layer entity, where the first indication information is used to indicate that the The first RRC message is sent during a random access procedure.
  • the RRC entity receives the first indication information sent by the lower layer entity, where the first indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the method further includes:
  • the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • An RRC message If the resource does not meet the size of the first RRC message, the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • the RRC entity receives the second indication information sent by the lower layer entity, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the RRC entity receives, to indicate that the first RRC message indication information cannot be sent in a random access procedure, and may be that the amount of data supported by the coverage level of the communication device does not satisfy the first RRC.
  • the size of the message or, if the resource allocated to the communication device does not satisfy the size of the first RRC message, it is received.
  • the first indication information and the second indication information of the embodiment refer to the explanation of the first indication information and the second indication information of the embodiment.
  • the program also includes:
  • the RRC entity lower layer entity second RRC message said.
  • the second RRC message does not include the to-be-sent data.
  • the MAC entity receives a second RRC message from the upper layer entity, where the second RRC message does not include the to-be-sent data; the second RRC message, that is, the traditional RRC message in the foregoing solution, may start with the first
  • the RRC message is received together (refer to step 1 in the second embodiment), and the second RRC message may also be received after the second layer information is sent by the upper layer entity (refer to step 4 of the embodiment).
  • the MAC entity sends the second RRC message to the lower layer entity; or if the resource does not satisfy the The size of the first RRC message is that the MAC entity sends the second RRC message to the lower layer entity.
  • the amount of data supported by the coverage level does not satisfy the size of the first RRC message, and the size of the first RRC message exceeds the data volume threshold supported by the coverage level. If the resource does not satisfy the size of the first RRC message, the uplink resource configured by the base station is insufficient to transmit the first RRC message.
  • whether non-signaling data such as service data is transmitted during the random access procedure is determined by the MAC entity of the communication device.
  • the MAC entity needs to determine whether the amount of data supported by the coverage level of the communication device satisfies the size of the first RRC message.
  • the size of the first RRC message is less than or equal to the amount of data supported by the coverage level, the coverage is overwritten.
  • the amount of data supported by the level satisfies the size of the first RRC message, otherwise the amount of data supported by the coverage level does not satisfy the size of the first RRC message.
  • the amount of data supported by the MAC entity to obtain the coverage level of the communication device may be various.
  • the configuration information of the communication device or the configuration information of the network may be obtained from an upper layer entity.
  • the first purpose of the first indication information is to inform the RRC entity that the MAC entity determines that the data cannot be transmitted in the random access process. It can be understood that the function of the first indication information can be expressed in multiple manners, for example, the first The indication information may be used to indicate that the first RRC message cannot be sent in the random access procedure; for example, the first indication information may be used that the amount of data supported by the current coverage level does not satisfy the size of the first RRC message. For example, the first indication information may be used to indicate that the first RRC message cannot be transmitted; for example, the first indication information may be used to indicate that an RRC message that does not include data is needed; and, for example, the first indication information may be used.
  • the data is not used in the process of indicating the random access, or the data cannot be transmitted during the random access process.
  • This application does not limit the application.
  • the purpose of the second indication information is to indicate that the resource is insufficient to transmit the first RRC message during the transmission process. It can be understood that the role of the second indication information may be expressed in multiple manners, for example, the second The indication information may be used to indicate that the uplink resource is insufficient to transmit the first RRC message; for example, the second indication information may be used to indicate that the second RRC message that does not include the transmission data is obtained; and, for example, the second indication information may be used.
  • the instruction fails to transmit the first RRC message; for example, the second indication information may be used to indicate that the data cannot be transmitted during the random access process, and the application does not limit the application.
  • the MAC entity of the communication device receives the first indication information from the upper layer entity, where the first indication information is used to indicate that the data to be transmitted is transmitted in the random access procedure (refer to the step in the third embodiment). 1).
  • the MAC entity returns the coverage level of the communication device to the upper layer entity (refer to step 2 of Embodiment 3).
  • the RRC entity when the upper layer entity is an RRC entity, the RRC entity sends first indication information to the lower layer entity, where the first indication information is used to indicate that the transport data is transmitted in the random access procedure; the RRC entity Receiving, by the lower layer entity, a coverage level of the communication device; if the data volume supported by the coverage level of the communication device satisfies a size of the first RRC message, the RRC entity sends the first layer to the lower layer entity An RRC message; The first RRC message includes data to be transmitted.
  • the meaning of the first indication information is different from the foregoing solution.
  • the purpose of the first indication information sent by the RRC entity to the MAC entity is to obtain the coverage level. Therefore, the first indication information may not only transmit the data to be transmitted in the random access process.
  • the method may also be used to obtain the coverage level, or to instruct the MAC entity to return the coverage level to the RRC entity, etc., which is not limited in this application.
  • the RRC entity sends the first RRC message to the lower layer entity;
  • the first RRC message includes data to be transmitted.
  • the MAC entity determines a first random access preamble, where the first random access preamble is used to indicate that the first RRC message is sent in a random access procedure.
  • the method further includes:
  • the MAC entity Receiving, by the MAC entity, a response message in response to the first random access preamble from a lower layer entity, the response message including a resource allocated to the communication device; if the resource satisfies a size of the first RRC message
  • the MAC entity sends the first RRC message to the lower layer entity.
  • the method further includes:
  • the MAC entity sends the second indication information to the upper layer entity, where the second indication information is used to indicate that the first part cannot be sent in the random access procedure.
  • An RRC message For the implementation of the solution, refer to step 7 of the third embodiment.
  • the RRC entity receives the second indication information sent by the lower layer entity, where the second indication information is used to indicate that the first information cannot be sent in the random access procedure.
  • RRC message
  • the RRC entity sends a second RRC message to the lower layer entity, where the second RRC message does not include the to-be-sent data.
  • the second RRC message does not include the to-be-sent data.
  • the RRC entity sends a second RRC message to the lower layer entity.
  • the second RRC message does not include the to-be-sent data.
  • the MAC entity receives a second RRC message from the upper layer entity, the second RRC message does not include the to-be-sent data, and the MAC entity sends the second RRC message to the lower layer entity.
  • the upper layer entity includes an entity located on the upper layer of the current entity that is adjacent to or not adjacent to the current entity.
  • other functional entities may also be included between the RRC entity and the MAC entity.
  • the random access method of the communication device provides an interaction scheme between the MAC entity and the RRC entity in the random access process, so that the data early transmission process and the traditional random access process can be flexibly switched, and data is being processed. In the early transmission process, it can seamlessly fall back to the traditional random access procedure, without resending the random access preamble, and without re-accepting the random access response, saving signaling overhead, which is beneficial to reducing power consumption and transmission time of the communication device. Delay.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a communication apparatus provided by the present application.
  • the communication apparatus 10 includes a MAC entity 11 and an RRC entity 12.
  • a MAC entity 11 and an RRC The entities 12 may be disposed in the same device, or may be configured to be disposed in different devices, which is not limited in this application.
  • the MAC entity 11 is used to:
  • the coverage level of the communication device determines a first random access preamble, where the first random access preamble is used to indicate that during the random access process Sending the first RRC message.
  • the MAC entity 11 is further configured to:
  • the MAC entity 11 is further configured to:
  • the upper layer entity sends first indication information, where the first indication information is used to indicate that the random access procedure cannot be performed. Transmitting the first RRC message.
  • the MAC entity 11 is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the MAC entity 11 is further configured to:
  • the RRC entity 12 is configured to:
  • the RRC entity 12 is further configured to:
  • the amount of data supported by the coverage level of the communication device does not satisfy the size of the first RRC message
  • the resources allocated to the communication device do not satisfy the size of the first RRC message.
  • the RRC entity 12 is further configured to:
  • Downlink entity second RRC message the second RRC message does not include the to-be-sent data.
  • the communication device provided by any of the foregoing implementations is used to implement the random access method of the communication device provided in the foregoing method embodiment, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the MAC entity 11 is configured to:
  • the MAC entity 11 is further configured to:
  • the first random access preamble being used to indicate that the first RRC message is sent in a random access procedure.
  • the MAC entity 11 is further configured to:
  • the MAC entity 11 is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the MAC entity 11 is further configured to:
  • the RRC entity 12 is configured to:
  • the RRC entity 12 is further configured to:
  • the RRC entity 12 is further configured to:
  • the communication device provided by any of the foregoing implementations is used to implement the random access method of the communication device provided in the foregoing method embodiment, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of a communication device provided by the present application.
  • the communication device includes: a memory and a processor for storing computer instructions, where the processor is configured to:
  • the coverage level of the communication device determines a first random access preamble, where the first random access preamble is used to indicate that during the random access process Sending the first RRC message.
  • the processor is further configured to:
  • the processor is further configured to:
  • the upper layer entity sends first indication information, where the first indication information is used to indicate that the random access procedure cannot be performed. Transmitting the first RRC message.
  • the processor is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the processor is further configured to:
  • the processor is configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • Downlink entity second RRC message the second RRC message does not include the to-be-sent data.
  • the processor is configured to:
  • the processor is further configured to:
  • the first random access preamble being used to indicate that the first RRC message is sent in a random access procedure.
  • the processor is further configured to:
  • the processor is further configured to:
  • the upper layer entity sends the second indication information, where the second indication information is used to indicate that the first RRC message cannot be sent in the random access procedure.
  • the processor is further configured to:
  • the processor is configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • the number of processors is at least one for executing an execution instruction of the memory storage, ie, a computer program.
  • the communication device can also include a transceiver for receiving and transmitting data.
  • the memory can also be integrated inside the processor.
  • the present application also provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any of the foregoing implementations.
  • the present application also provides a readable storage medium, a readable storage medium, and computer instructions for implementing a random access method of a communication device provided by any of the foregoing implementations.
  • the application also provides a program product stored in a readable storage medium, at least one processor of a communication device reading and executing the computer instructions from the readable storage medium such that the communication device performs the aforementioned A random access method of a communication device provided by an implementation.
  • the processor may be a central processing unit (English: Central Processing Unit, CPU for short), or other general-purpose processor, digital signal processor (English: Digital Signal Processor) , referred to as: DSP), ASIC (English: Application Specific Integrated Circuit, referred to as: ASIC).
  • the general purpose processor may be a microprocessor or the processor may also be Any conventional processor, etc.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the aforementioned program can be stored in a computer readable memory.
  • the steps including the foregoing method embodiments are performed; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

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Abstract

本申请实施例提供一种通信装置的随机接入方法、装置和存储介质，通信装置包括MAC实体和RRC实体，该方法包括：RRC实体向下层实体发送第一RRC消息，所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据，若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。通过MAC实体决定是否进行数据早传，提供一种合理的交互机制，使得数据早传流程和传统随机接入流程灵活切换，有利于降低通信装置的功耗和传输时延。

Description

通信装置的随机接入方法、装置和存储介质 技术领域
本申请涉及通信技术，尤其涉及一种通信装置的随机接入方法、装置和存储介质。
背景技术
移动通信已经深刻地改变了人们的生活，但人们对更高性能移动通信的追求从未停止。为了应对未来爆炸性的移动数据流量增长、海量的设备连接、不断涌现的各类新业务和应用场景，例如：第四代(4th Generation，4G)移动通信、第五代(5th-Generation，5G)系移动通信统将应运而生。物联网作为5G的组成部分，其市场需求增长迅猛。
目前第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)标准已经基于蜂窝网络，针对物联网的特点提出了解决方案，比如基于蜂窝的窄带物联网(Narrow Band Internet of Things，NB-IoT)网络和机器类通信(machine type communication，MTC)网络。二者均利用了窄带技术的特点，来承载IoT业务。其中，NB-IoT网络应用了独立于现有蜂窝网络长期演进(Long Term Evolution，LTE)的新空口技术，终端成本更低，支持的速率和移动性更低。MTC网络属于传统蜂窝网络的一部分，终端成本较NB-IoT略高，适用于相对较高速率和移动性的物联网业务。
NB-IoT和MTC在Rel-15版本中持续针对物联网的小数据包传输特点进行优化，正在设计在随机接入过程中进行数据传输的新技术，以节约小数据包传输的时延和功耗。但是这种新设计也带来了新的挑战。比如，传统的以单纯建立无线资源控制(Radio Resource Control，RRC)连接为目的的随机接入中，RRC层和介质访问控制(Media Access Control，MAC)层的层间交互比较简单，通常只在随机接入的初始和结束(包括异常退出)阶段才有交互。而如果想要在随机接入过程中同时传输数据，可能涉及到由于网络资源紧张或者空口传输失败导致的回退机制，这时的RRC层和MAC层之间的交互可能更加复杂。
因此，需要为NB-IoT和MTC设计新的随机接入方案，以满足在随机接入过程中传输数据的新要求。
发明内容
本申请提供一种通信装置的随机接入方法、装置和存储介质，为NB-IoT和MTC设计新的随机接入方案，满足在随机接入过程中传输数据的新要求。
本申请第一方面提供一种通信装置的随机接入方法，所述通信装置包括MAC实体，所述方法包括：
所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程 中发送所述第一RRC消息。
换而言之，该第一随机接入前导码可以通知接收端在本次随机接入过程中会传输除了信令之外的数据。可以理解的是，该第一随机接入前导码的作用可以有多种表达方式。例如：该第一随机接入前导码可以用于指示在随机接入过程中会发送携带待传输数据的RRC消息；再例如：该第一随机接入前导码可以用于指示在随机接入过程中会发送待传输数据；再例如：该第一随机接入前导码可以用于指示在随机接入过程中通过RRC消息发送待传输数据；再例如：该第一随机接入前导码可以用于指示在随机接入过程的MSG3中发送待传输数据，再例如：该第一随机接入前导码可以用于指示利用随机接入过程的消息发送待传输数据等。本申请对第一随机接入前导码的作用的表达方式不作限制。
除此之外，该第一随机接入前导码与现有的随机接入前导码可以使用不同的资源，以便接收端能够通过前导码使用的资源来区分该第一随机接入前导码和现有的随机接入前导码。资源的维度包括时域(发送前导码资源的周期、持续是长度和起始时间等)、频域(发送前导码使用的载波、子载波等)和码域(前导码使用的码字)等。资源的不同可以为在时域、频域和码域中的任意一个或多个域上不同，对此本申请不做限制。所述MAC实体可以有多种方式获取该第一随机接入前导码与现有的随机接入前导码可以使用的资源，比如通过从上层实体获取相关配置等，对此同样不做限制。基于使用不同的资源的方案，上述方法可以表述为：
所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，所述MAC实体确定第一随机接入前导码所占用的资源，所述第一随机接入前导码所占用的资源用于指示在随机接入过程中发送所述第一RRC消息。其中，第一随机接入前导码所占用的资源的作用的表述可以类似于上述第一随机接入前导码的作用的表述，此处不作赘述。
通过MAC实体来判断覆盖等级所支持的数据量是否满足所述第一RRC消息的大小，可以减少MAC实体和其他实体(例如RRC实体)所需交互的信息。
可选的，还包括：
所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。
可选的，还包括：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
在上述几个方案中，应理解MAC实体需要判断通信装置的覆盖等级所支持的数据量是否满足所述第一RRC消息的大小，当第一RRC消息的大小小于或者等于覆盖等级所支持的数据量时，则覆盖等级所支持的数据量满足所述第一RRC消息的大小，否则覆盖等级所支持的数据量不满足所述第一RRC消息的大小。
MAC实体获取所述通信装置的覆盖等级所支持的数据量可以有多种方式，比如可以 从上层实体获取所述通信装置的配置信息或网络的配置信息等，对此本方案不做限制。
第一指示信息主要目的是告知RRC实体MAC实体的判断结果是无法在随机接入过程中传输数据，可以理解的是，该第一指示信息的作用可以有多种表达方式，例如：该第一指示信息可以用于指示无法在所述随机接入过程中发送所述第一RRC消息；再例如：该第一指示信息可以用于当前覆盖等级所支持的数据量不满足第一RRC消息的大小；再例如：该第一指示信息可以用于指示第一RRC消息无法传输；再例如：该第一指示信息可以用于指示需要不包含数据的RRC消息；再例如：该第一指示信息可以用于指示本次随机接入过程中不采用数据早传流程，或者本次随机接入过程中不能传输数据等，对此本申请不做限制。
可选的，还包括：
若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
同样的，第二指示信息的目的是也是指示在传输过程中发现资源不足以传输第一RRC消息，可以理解的是，该第二指示信息的作用可以有多种表达方式，例如：该第二指示信息可以用于指示上行资源不足以传输第一RRC消息；再例如：该第二指示信息可以用于指示获取不包含带传输数据的第二RRC消息；再例如：该第二指示信息可以用于指示传输第一RRC消息失败；再例如：该第二指示信息可以用于指示本次随机接入过程中不能传输数据等，对此本申请不做限制。
可选的，还包括：
所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第二RRC消息；或者，
若所述资源不满足所述第一RRC消息的大小所述MAC实体向所述下层实体发送所述第二RRC消息。
本申请第二方面提供一种通信装置的随机接入方法，所述通信装置包括RRC实体，所述方法包括：
所述RRC实体向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
可选的，还包括：
所述RRC实体接收所述下层实体发送的指示信息，所述指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
可选的，所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，分配给所述通信装置的资源不满足所述第一RRC消息的大小。
可选的，还包括：
所述RRC实体向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
在上述方案中，通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小时，该指示消息为前述第一方面中的第一指示信息；分配给所述通信装置的资源不满足 所述第一RRC消息的大小时，该指示信息为前述第一方面中的第二指示信息，其具体含义参考第一方面中的描述。
本申请第三方面提供一种通信装置的随机接入方法，所述通信装置包括MAC实体，所述方法包括：
所述MAC实体从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据；
所述MAC实体将所述通信装置的覆盖等级返回所述上层实体。
该方案中，第一指示信息的含义与前述的方案中不同，这里RRC实体向MAC实体发送第一指示信息的目的是获取覆盖等级，因此第一指示信息除了可以指示随机接入过程中传输待传输数据之外，该第一指示信息还可以用于指示获取覆盖等级，或者该第一指示信息还可以用于指示MAC实体将覆盖等级返回RRC实体等，对此本申请不做限制。
可选的，所述方法还包括：
所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述方法还包括：
所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。
可选的，所述方法还包括：
若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
在该方案中，第二指示信息的目的是也是指示在传输过程中发现资源不足以传输第一RRC消息，因此该第二指示信息可以指示上行资源不足以传输第一RRC消息，或者指示获取不包含带传输数据的第二RRC消息，或者也可以指示传输第一RRC消息失败，或者还可以指示本次随机接入过程中不能传输数据等，对此本申请不做限制。
可选的，所述方法还包括：
所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
所述MAC实体向所述下层实体发送所述第二RRC消息。
本申请第四方面提供一种通信装置的随机接入方法，所述通信装置包括RRC实体，所述方法包括：
所述RRC实体向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
所述RRC实体接收所述下层实体返回的所述通信装置的覆盖等级；
若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则所述RRC实体向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
可选的，所述方法还包括：
所述RRC实体接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
可选的，还包括：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
在第三方面和第四方面的每个技术方案中，应理解RRC实体需要判断通信装置的覆盖等级所支持的数据量是否满足所述第一RRC消息的大小，当第一RRC消息的大小小于或者等于覆盖等级所支持的数据量时，则覆盖等级所支持的数据量满足所述第一RRC消息的大小，否则覆盖等级所支持的数据量不满足所述第一RRC消息的大小。
在上述方案中，第一指示信息和第二指示信息的含义与第三方面中类似，在此不再赘述。
在第一方面至第四方面的任一方案中，还应理解上层实体包括跟当前实体相邻的或者不相邻的位于当前实体上层的实体，例如：RRC实体和MAC实体之间还可能包括其他功能实体，比如无线链路控制协议(Radio Link Control，RLC)实体等。
本申请第五方面提供一种MAC实体，该MAC实体可以用于实现第一方面的方法。例如，所述MAC实体用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述MAC实体还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向所 述下层实体发送所述第二RRC消息；或者，
若所述资源不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息。
本申请第六方面提供一种RRC实体，该RRC实体可以用于实现第二方面的方法。例如，所述RRC实体用于：
向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
可选的，所述RRC实体还用于：
接收所述下层实体发送的指示信息，所述指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
可选的，所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，
分配给所述通信装置的资源不满足所述第一RRC消息的大小。
可选的，所述RRC实体还用于：
向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
本申请第七方面提供一种MAC实体，可用于实现第三方面的方法。例如，所述MAC实体用于：
从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据；
将所述通信装置的覆盖等级返回所述上层实体。
可选的，所述MAC实体还用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述MAC实体还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
向所述下层实体发送所述第二RRC消息。
本申请第八方面提供一种RRC实体，可用于实现第四方面的方法。例如，所述RRC实体用于：
向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
接收所述下层实体返回的所述通信装置的覆盖等级；
若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
可选的，所述RRC实体还用于：
接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
可选的，所述RRC实体还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
本申请还提供一种通信装置，包括上述第五方面或者第七方面的任一实现方式提供的MAC实体。
本申请还提供一种通信装置，包括上述第六方面或者第八方面的任一实现方式提供的RRC实体。
本申请还提供一种通信装置，包括第五方面任一实现方式提供的MAC实体和第六方面任一实现方式提供的RRC实体。
本申请还提供一种通信装置，包括第七方面任一实现方式提供的MAC实体和第八方面任一实现方式提供的RRC实体。
本申请第九方面提供一种通信装置，包括：用于存储计算机指令的存储器和处理器，所述处理器用于执行所述计算机指令，以实现上述第一至第四方面中任一的方法。：
本申请第十方面提供一种通信装置，包括：用于存储计算机指令的存储器和处理器，所述处理器用于执行所述计算机指令，以实现上述第五至第八方面中任一实体的功能。
上述通信装置可以是终端，或者通信芯片，基带芯片，或者片上系统(system-on-a-chip)芯片。
在上述第九或第十方面的通信装置中，处理器的数量为至少一个，用来执行存储器存储的执行指令，即计算机程序。
本申请第十一方面还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现第一方面任一实现方案提供的通信装置的随机接入方法。
本申请第十二方面还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现第二方面任一实现方案提供的通信装置的随机接入方法。
本申请第十三方面还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现第三方面任一实现方案提供的通信装置的随机接入方法。
本申请第十四方面还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现第四方面任一实现方案提供的通信装置的随机接入方法。
本申请第十五方面提供一种程序产品，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备执行第一方面任一项所述的通信装置的随机接入方法。
本申请第十六方面提供一种程序产品，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备 执行第二方面任一项所述的通信装置的随机接入方法。
本申请第十七方面提供一种程序产品，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备执行第三方面任一项所述的通信装置的随机接入方法。
本申请第十八方面提供一种程序产品，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备执行第四方面任一项所述的通信装置的随机接入方法。
本申请提供的通信装置的随机接入方法、装置和存储介质，通过判断通信装置的覆盖等级所支持的数据量是否满足所述第一RRC消息的大小来确定合适的随机接入前导码，以便在随机接入过程中发送携带待传输数据的RRC消息，实现了数据早传，使得数据早传流程和传统随机接入流程灵活切换，有利于降低通信装置的功耗和传输时延。另外，MAC实体根据覆盖等级确定是否在随机接入过程中进行数据传输，避免与上层实体间进行多次信令交互，节省信令开销，提高传输效率。可选的，RRC实体从MAC实体获取覆盖等级，并确定是否在随机接入过程中进行数据传输，可根据确定的结果生成对应的RRC消息，避免生成了与覆盖等级所支持的数据量不满足的RRC消息，在后续过程中需要再次生成RRC消息的问题，提高传输效率。
附图说明
图1为一种随机接入阶段传输数据的流程示意图；
图2为本申请提供的通信装置的随机接入方法的一种应用场景示意图；
图3为本申请提供的通信装置的随机接入方法实施例一的交互示意图；
图4为本申请提供的通信装置的随机接入方法实施例二的交互示意图；
图5为本申请提供的通信装置的随机接入方法实施例三的交互示意图；
图6为本申请提供的通信装置实施例一的结构示意图；
图7为本申请提供的通信设备实施例一的结构示意图。
具体实施方式
图1为一种随机接入阶段传输数据的流程示意图。在NB-IoT和MTC系统中，如图1所示，在随机接入阶段传输数据的流程如下：
0、基站进行随机接入配置。基站广播在随机接入过程中传输数据的相关配置。其中，在随机接入过程中传输数据可以称为数据早传(early data transmission，EDT)；该配置可以理解为EDT的相关配置。其中，该相关配置包括每一个覆盖等级支持的EDT的上行数据量的控制门限(transport block size，TBS)。
UE根据自己的覆盖等级和上行数据量判断是否使用EDT，如果数据量大于当前覆盖等级的数据量控制门限，则发起传统的随机接入流程。如果数据量小于或等于当前覆盖等级的数据量控制门限，则从下一步骤1开始发起EDT流程。
1、UE发起随机接入，通过前导码指示本次随机接入过程中进行数据早传。其含义是UE使用特定的随机接入资源来发起随机接入，进而指示本次随机接入是一次EDT流程。
2、基站返回随机接入响应(Random Access Response，RAR)，携带上行资源。基站根据UE发送的随机接入前导码回复RAR，并在其中携带用于上行数据传输的资源(UL grant)，其中，该资源可能不等于步骤0中广播的TBS。
3、UE在上行资源上发送RRC消息。其含义是UE根据RAR中的UL grant决定是否在消息3(MSG3)中携带数据。如果UL grant不够携带上行数据，则发送传统的RRC连接建立请求消息，开始建立RRC连接。如果UL grant足够携带上行数据，则在消息3中发送包含数据的RRC消息。
4、如果存在下行数据，则基站向UE发送下行数据。基站收到携带数据的消息3后，将上行数据递交给核心网，如果核心网有下行的数据给UE，则基站可以选择在消息4中下发给UE，并让UE在消息4之后进入空闲态。
在传统的随机接入过程中，如果是为了建立无线资源控制(Radio Resource Control，RRC)连接，通常是由终端的RRC层准备RRC连接建立请求消息，然后递交给MAC层进行传输。为了传输该RRC消息，MAC层会发起随机接入，并在消息3中将该RRC消息传输给基站，并在消息4中接收下行的RRC连接setup消息。如果随机接入成功，MAC层会知会RRC层并将相应的消息递交给RRC层。如果随机接入失败，比如竞争解决失败或网络由于负载原因暂时不想让该终端接入等，MAC层会知会RRC层随机接入失败。
以下将针对EDT流程，详细说明RRC层、MAC层、以及其他层的功能和层间交互的实施方式。
在本申请中应理解，MAC实体，MAC层均表示通信装置中负责控制与连接物理层的介质，RRC实体、RRC、RRC层、RRC协议层等均表示通信装置中的实现无线资源控制的功能实体，对于具体的称呼本申请不做限制。通信装置可以是终端、UE等，还可以是具体的手机、电脑、各类传感器、通信芯片等包含通信功能的设备。
基于上述描述，本申请提出一种通信装置的随机接入方法。该方法给出了适合数据早传流程的RRC实体和MAC实体之间的交互方式。
本申请提出的方案可以应用在2G、3G通信系统、4G通信系统、以及5G系统，无线局域网等各类无线通信系统中，特别是应用在终端低复杂度、低功耗的无线通信系统中，例如：窄带物联网(Narrow Band Internet of Things，NB-IoT)网络和MTC网络中，图2为本申请提供的通信装置的随机接入方法的一种应用场景示意图，如图2所示，该场景中涉及网络设备(例如：基站)，与网络设备连接的各种类型的终端，具体的手机、电脑、各类传感器、通信芯片等包含通信功能的设备，可统称为通信设备。本申请中涉及的通信装置包括RRC实体和MAC实体，MAC实体和RRC可以进行分布式设置，对此本申请不做限制。在本申请的所有实施例中，待传输数据、待发送数据，业务数据、数据等表示相同的含义。
实施例一
图3为本申请提供的通信装置的随机接入方法实施例一的交互示意图，如图3所示，该方案中RRC实体每次生成一个RRC消息，且初始阶段是否发起数据早传(early data transmission，简称：EDT)即在随机接入过程中进行数据传输由MAC实体决定，该方法的具体交互过程为：
步骤1，RRC实体生成包含待传输数据的RRC消息，并将该包含待传输数据的 RRC消息发送给MAC实体。
在本申请中，RRC实体和MAC实体之间的交互的信息，可以分为业务数据和信令。应理解待传输数据指的是需要携带在RRC消息中上传的业务数据，并非RRC信令。RRC实体和MAC实体之间的信息交互也可以理解为信息的传递，或者信息的递交，对此本申请不做限制。
步骤2，MAC实体接收到RRC实体发送的包含待传输数据的RRC消息，则可以判断覆盖等级对应的数据量是否满足包含待传输数据的RRC消息。
该步骤的具体含义是，包含待传输数据的RRC消息触发随机接入过程，MAC实体根据测量得到的RSRP，确定出该通信装置的覆盖等级，并根据基站预先配置的覆盖等级对应的数据量控制门限，判断该通信装置的覆盖等级对应的数据量能否传输该包含待传输数据的RRC消息，即判断该包含待传输数据的RRC消息的大小是否大于覆盖等级对应的数据量控制门限，如果包含待传输数据的RRC消息的大小大于覆盖等级对应的数据量控制门限，则不满足，即MAC实体决定不进行数据早传，即在本次随机接入过程中不传输数据；否则满足，即MAC实体决定进行数据早传，即在本次随机接入过程中传输数据。
MAC实体根据覆盖等级确定是否在随机接入过程中进行数据传输，避免与上层实体间进行多次信令交互，节省信令开销，提高传输效率。
步骤3，若MAC实体判断结果为不满足，则MAC实体向RRC实体返回指示信息，该指示信息用于指示在该随机接入过程中不传输数据。
可以理解，指示信息主要目的是告知RRC实体MAC实体的判断结果是无法在随机接入过程中传输数据，可以理解的是，该指示信息的作用可以有多种表达方式，例如：该指示信息可以用于指示无法在所述随机接入过程中发送包含待传输数据的RRC消息；再例如：该指示信息可以用于当前覆盖等级所支持的数据量不满足包含待传输数据的RRC消息的大小；再例如：该指示信息可以用于指示包含待传输数据的RRC消息无法传输；再例如：该指示信息可以用于指示需要不包含数据的RRC消息；再例如：该第一指示信息可以用于指示本次随机接入过程中不采用数据早传流程，或者本次随机接入过程中不能传输数据等，对此本申请不做限制。
步骤4，RRC实体在接收到指示该随机接入过程中不传输数据的指示信息之后，生成不包括待传输数据的RRC消息，即生成传统RRC消息，并将该传统RRC消息发送给MAC实体。
步骤5，MAC实体根据该传统RRC消息进行随机接入，即发送随机接入前导码，接收基站返回的随机接入响应，在随机接入响应中的上行资源上将该不包含待传输数据的RRC消息进行发送。
步骤6，若MAC实体判断结果为满足，则MAC实体向下层实体发特定的随机接入前导码，发起数据早传过程。
该方案的含义是，步骤6中的随机接入前导码与步骤5中的随机接入前导码不同。
在本步骤中，MAC实体确定特定的随机接入前导码，并将该特定的随机接入前导码向下层实体发送，该随机接入前导码指示在本次随机接入过程中需要传输数据，具体指示方式本申请不做限制，以便下层实体在与基站交互时，基站可通过该随机接 入前导码确定本次随机接入需要传输数据，为该通信设备分配资源。MAC实体从下层实体接收基站返回的随机接入响应RAR，该RAR中携带上行资源，MAC实体在该上行资源上发送包含待传输数据的RRC消息，或者在基站分配的上行资源中选择合适的资源上传全部或者部分包含待传输数据的RRC消息。即在图1所示的消息3中发送包含待传输数据的RRC消息。
在上述步骤6之后，可选的，MAC实体还可以根据RAR中携带的资源再次进行判断，确定是否能够在随机接入过程中传输带传输数据，具体过程如下步骤7-9。
步骤7，若资源较小，则向RRC实体发送指示信息，指示在随机接入过程中无法传输数据。
该指示信息的目的是也是指示在传输过程中发现资源不足以传输第一RRC消息，即指示配置的上行资源较小。可以理解的是，该指示信息的作用可以有多种表达方式，例如：该指示信息可以用于指示上行资源不足以传输第一RRC消息；再例如：该指示信息可以用于指示获取不包含带传输数据的第二RRC消息；再例如：该指示信息可以用于指示传输第一RRC消息失败；再例如：该指示信息可以用于指示本次随机接入过程中不能传输数据等，对此本申请不做限制。
该方案中，MAC实体在发送包含待传输数据的RRC消息时，发现配置的上行资源不足够传输包含待传输数据的RRC消息，则需要指示RRC实体需要发送传统的RRC消息。
步骤8，RRC实体在接收到指示该随机接入过程中无法传输数据的指示信息之后，生成不包括待传输数据的RRC消息，即生成传统RRC消息，并将该传统RRC消息发送给MAC实体。
步骤9，MAC实体接收传统RRC消息，并在随机接入响应中的上行资源上将该不包含待传输数据的传统RRC消息进行发送。即在图1所示的消息3中发送传统RRC消息。
本实施例提供的通信装置的随机接入方法，提供随机接入过程中MAC实体和RRC实体之间的交互方案，使得数据早传流程和传统随机接入流程之间可以灵活切换，并且在进行数据早传流程中可无缝回退到传统的随机接入流程，无需重新发送随机接入前导码，也无需重新接受随机接入响应，节省信令开销，利于通信装置的降低功耗和传输时延。
实施例二
图4为本申请提供的通信装置的随机接入方法实施例二的交互示意图，如图4所示，该方案中RRC实体同时生成两个RRC消息，其中一个包含待传输数据，另一个不包含待传输数据，在随机接入过程中进行数据传输由MAC实体决定，该方法的具体交互过程为：
步骤1，RRC实体生成包含待传输数据的RRC消息以及传统RRC消息，并将该包含待传输数据的RRC消息和传统RRC消息同时发送给MAC实体。
步骤2，MAC实体接收到RRC实体发送的包含待传输数据的RRC消息以及传统RRC消息，则可以判断覆盖等级对应的数据量是否满足包含待传输数据的RRC消息。
该步骤的具体含义是，MAC实体开始随机接入过程，根据测量得到的RSRP，确 定出该通信装置的覆盖等级，并根据基站预先配置的覆盖等级对应的数据量控制门限，判断该通信装置的覆盖等级对应的数据量能否传输该包含待传输数据的RRC消息，即判断该包含待传输数据的RRC消息的大小是否大于覆盖等级对应的数据量控制门限，如果包含待传输数据的RRC消息的大小大于覆盖等级对应的数据量控制门限，则不满足，即MAC实体决定不进行数据早传，即在本次随机接入过程中不传输数据；否则满足，即MAC实体决定进行数据早传，即在本次随机接入过程中传输数据。
步骤3，若MAC实体判断结果为不满足，则MAC实体向RRC实体返回指示信息，该指示信息用于指示在该随机接入过程中不传输数据。
步骤4，MAC实体根据该传统RRC消息进行随机接入，即发送随机接入前导码，接收基站返回的随机接入响应，在随机接入响应中的上行资源上将该不包含待传输数据的RRC消息进行发送。
在该方案中，RRC实体不需要在接收到指示该随机接入过程中不传输数据的指示信息后再生成RRC消息，MAC实体直接根据之前接收到的传统RRC消息进行随机接入即可。
步骤5，若MAC实体判断结果为满足，则MAC实体向下层实体发特定的随机接入前导码，发起数据早传过程。
该方案的含义是，MAC实体确定特定的随机接入前导码，并将该特定的随机接入前导码向下层实体发送，该随机接入前导码指示在本次随机接入过程中需要传输数据，具体指示方式本申请不做限制，以便下层实体在与基站交互时，基站可通过该随机接入前导码确定本次随机接入需要传输数据，为该通信设备分配资源。MAC实体从下层实体接收基站返回的随机接入响应RAR，该RAR中携带上行资源，MAC实体在该上行资源上发送包含待传输数据的RRC消息，或者在基站分配的上行资源中选择合适的资源上传全部或者部分包含待传输数据的RRC消息。即在图1所示的消息3中发送包含待传输数据的RRC消息。
在上述步骤5之后，可选的，MAC实体还可以根据RAR中携带的资源再次进行判断，确定是否能够在随机接入过程中传输带传输数据，具体过程如下步骤6、7。
步骤6，若资源较小，则向RRC实体发送指示信息，指示在随机接入过程中无法传输数据。
该步骤中的指示信息的含义与实施例一中步骤7中的指示信息的含义类似，在此不再赘述。
该方案中，MAC实体在发送包含待传输数据的RRC消息时，发现配置的上行资源不足够传输包含待传输数据的RRC消息，则只需要指示该随机接入过程中无法传输数据即可，不需要指示RRC实体生成传统的RRC消息。
步骤7，MAC实体根据之前接收到的传统RRC消息，在随机接入响应中的上行资源上将该不包含待传输数据的传统RRC消息进行发送。即在图1所示的消息3中发送传统RRC消息。
本实施例提供的通信装置的随机接入方法，提供随机接入过程中MAC实体和RRC实体之间的交互方案，MAC实体根据数据量门限以及资源大小，决定传输两个 RRC消息中的哪个，无需在随机接入过程中生成RRC消息，使得数据早传流程和传统随机接入流程之间可以灵活切换，并且在进行数据早传流程中可无缝回退到传统的随机接入流程，无需重新发送随机接入前导码，也无需重新接受随机接入响应，节省信令开销，利于通信装置的降低功耗和传输时延。
实施例三
图5为本申请提供的通信装置的随机接入方法实施例三的交互示意图，如图5所示，该方案中初始阶段的是发起传统的随机接入还是EDT是由RRC实体决定的，该方法的具体交互过程为：
步骤1，RRC实体向MAC实体发送指示信息，指示需要在随机接入过程中传输数据。
该方案中，指示信息的含义与前述的方案中不同，这里RRC实体向MAC实体发送指示信息的目的是获取覆盖等级，因此指示信息除了可以指示随机接入过程中传输待传输数据之外，该指示信息还可以用于指示获取覆盖等级，或者该指示信息还可以用于指示MAC实体将覆盖等级返回RRC实体等，对此本申请不做限制。。
步骤2，MAC实体接收到指示信息后，MAC实体根据测量得到的RSRP，确定出该通信装置的覆盖等级，MAC实体将该覆盖等级发送给RRC实体。
步骤3，RRC实体根据接收到的覆盖等级，判断覆盖等级对应的数据量是否满足包含待传输数据的RRC消息。
该步骤的具体含义是，RRC实体根据基站预先配置的覆盖等级对应的数据量控制门限，判断该通信装置的覆盖等级对应的数据量能否传输包含待传输数据的RRC消息，即判断该包含待传输数据的RRC消息的大小是否大于覆盖等级对应的数据量控制门限，如果包含待传输数据的RRC消息的大小大于覆盖等级对应的数据量控制门限，则不满足，即RRC实体决定不进行数据早传，即在本次随机接入过程中不传输数据；否则满足，即RRC实体决定进行数据早传，即在本次随机接入过程中传输数据。同时，RRC实体从MAC实体获取覆盖等级，并确定是否在随机接入过程中进行数据传输，可根据确定的结果生成对应的RRC消息，避免生成了与覆盖等级所支持的数据量不满足的RRC消息，在后续过程中需要再次生成RRC消息的问题，提高传输效率。
步骤4，若RRC实体判断结果为不满足，则将传统RRC消息发送给MAC实体。
步骤5，MAC实体根据该传统RRC消息进行随机接入，发送随机接入前导码，接收基站返回的随机接入响应，在随机接入响应中的上行资源上将该不包含待传输数据的RRC消息进行发送。
步骤6，若RRC实体判断结果为满足，则RRC实体向MAC实体发送包含待传输数据的RRC消息。
步骤7，MAC实体接收到包含待传输数据的RRC消息，发起数据早传过程。
MAC实体确定特定的随机接入前导码，并将该特定的随机接入前导码向下层实体发送，该随机接入前导码指示在本次随机接入过程中需要传输数据，具体指示方式本申请不做限制，以便下层实体在与基站交互时，基站可通过该随机接入前导码确定本次随机接入需要传输数据，为该通信设备分配资源。MAC实体从下层实体接收基 站返回的随机接入响应RAR，该RAR中携带上行资源，MAC实体在该上行资源上发送包含待传输数据的RRC消息，或者在基站分配的上行资源中选择合适的资源上传全部或者部分包含待传输数据的RRC消息。即在图1所示的消息3中发送包含待传输数据的RRC消息。
与前述实施例一二类似，可选的，在步骤7的具体实现中，MAC实体可以根据基站分配的资源传输包含待传输数据的RRC消息。MAC实体还可以根据RAR中携带的资源再次进行判断，确定是否能够在随机接入过程中传输带传输数据，具体过程与实施例一和二类似。若资源较小，则向RRC实体发送指示，指示在随机接入过程中无法传输数据。即指示配置的上行资源较小，并不够传输包含待传输数据的RRC消息。MAC实体在发送包含待传输数据的RRC消息时，发现配置的上行资源不足够传输包含待传输数据的RRC消息，则需要指示RRC实体需要发送传统的RRC消息。RRC实体在接收到指示该随机接入过程中无法传输数据的指示信息之后，生成不包括待传输数据的传统RRC消息，并将该传统RRC消息发送给MAC实体。MAC实体接收传统RRC消息，并在随机接入响应中的上行资源上将该不包含待传输数据的传统RRC消息进行发送。即在图1所示的消息3中发送传统RRC消息。
本实施例提供的通信装置的随机接入方法，提供随机接入过程中MAC实体和RRC实体之间的交互方案，与前述两个方案不同的是，该方案中红由RRC实体决定是否进行数据早传，RRC层在知道通信装置的覆盖等级后再进行决策，并根据决策结果确定向MAC实体发送的RRC消息是否包含待传输数据，使得数据早传流程和传统随机接入流程之间可以灵活切换，并且在进行数据早传流程中可无缝回退到传统的随机接入流程，无需重新发送随机接入前导码，也无需重新接受随机接入响应，节省信令开销，利于通信装置的降低功耗和传输时延。
在上述几个实施例中，均是RRC实体将待传输数据携带在RRC消息中传递给MAC实体，然后在随机接入过程中传输携带数据的RRC消息，在该方案的实际应用过程中，当待传输数据在MAC层时，是否在随机接入过程中传输数据依然可以是MAC实体或者RRC实体确定，在确定了在随机接入过程中传输数据，MAC实体可在接收到RRC实体传递的RRC消息之后，MAC实体将该待传输数据携带在RRC消息中进行传输。待传输数据由哪个实体携带在RRC消息中，对此本申请不做限制。
根据前述的几个实施例可知，在本申请提供的通信装置的随机接入方法中，是否在随机接入过程中进行业务数据等非信令数据的传输，可以由MAC实体决定,也可以由RRC实体决定，基于上述实施例可知，该随机接入方法至少包括以下具体的实现方案：
一种具体的实现方案中，通信装置的MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
该方案中，一种具体实现方式可参考实施例一和实施例二中的步骤1、6-9.
上层实体可以是RRC实体，则该第一RRC消息是RRC实体发送给MAC实体 的。即RRC实体向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。换而言之，该第一随机接入前导码可以通知接收端在本次随机接入过程中会传输除了信令之外的数据。可以理解的是，该第一随机接入前导码的作用可以有多种表达方式。例如：该第一随机接入前导码可以用于指示在随机接入过程中会发送携带待传输数据的RRC消息；再例如：该第一随机接入前导码可以用于指示在随机接入过程中会发送待传输数据；再例如：该第一随机接入前导码可以用于指示在随机接入过程中通过RRC消息发送待传输数据；再例如：该第一随机接入前导码可以用于指示在随机接入过程的MSG3中发送待传输数据，再例如：该第一随机接入前导码可以用于指示利用随机接入过程的消息发送待传输数据等。本申请对第一随机接入前导码的作用的表达方式不作限制。
除此之外，该第一随机接入前导码与现有的随机接入前导码可以使用不同的资源，以便接收端能够通过前导码使用的资源来区分该第一随机接入前导码和现有的随机接入前导码。资源的维度包括时域(发送前导码资源的周期、持续是长度和起始时间等)、频域(发送前导码使用的载波、子载波等)和码域(前导码使用的码字)等。资源的不同可以为在时域、频域和码域中的任意一个或多个域上不同，对此本申请不做限制。所述MAC实体可以有多种方式获取该第一随机接入前导码与现有的随机接入前导码可以使用的资源，比如通过从上层实体获取相关配置等，对此同样不做限制。
可选的，在上述方案的基础上，该方案还包括：
所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。该方案的具体实现可参考前述实施例一中的步骤6中的具体实现。
可选的，在上述任一方案的基础上，该方案还包括：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。该方案中，RRC实体是上层实体时，所述RRC实体接收下层实体发送的第一指示信息，所述第一指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。该方案的具体实现可参考前述实施例一的步骤3-5中的具体实现。
可选的，在上述任一方案的基础上，还包括：
若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
所述RRC实体接收下层实体发送的第二指示信息，所述第二指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
综上所述，RRC实体接收用于指示无法在随机接入过程中发送所述第一RRC消息指示信息，可以是在所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，分配给所述通信装置的资源不满足所述第一RRC消息的大小两种情况下接收到。具体可参考实施例一种的第一指示信息和第二指示信息的解释。
在上述任一方案的基础上，该方案还包括：
所述RRC实体向下层实体第二RRC消息，所述。第二RRC消息不包括所述待发送 数据。
所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；该第二RRC消息即前述方案中的传统RRC消息，可以在一开始跟第一RRC消息一起接收(参考实施例二中的步骤1)，也可以在向上层实体发送完第二指示信息之后接收该第二RRC消息(参考实施例一种的步骤4)。
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第二RRC消息；或者，若所述资源不满足所述第一RRC消息的大小所述MAC实体向所述下层实体发送所述第二RRC消息。
该方案中，应理解覆盖等级支持的数据量不满足第一RRC消息的大小，指的是第一RRC消息的大小超过了覆盖等级支持的数据量门限。资源不满足所述第一RRC消息的大小指的是基站配置的上行资源不足以传输该第一RRC消息。
上述的几种实施方式中，是否在随机接入过程中传输业务数据等非信令数据，由通信装置的MAC实体决定。同时，应理解MAC实体需要判断通信装置的覆盖等级所支持的数据量是否满足所述第一RRC消息的大小，当第一RRC消息的大小小于或者等于覆盖等级所支持的数据量时，则覆盖等级所支持的数据量满足所述第一RRC消息的大小，否则覆盖等级所支持的数据量不满足所述第一RRC消息的大小。
MAC实体获取所述通信装置的覆盖等级所支持的数据量可以有多种方式，比如可以从上层实体获取所述通信装置的配置信息或网络的配置信息等，对此本方案不做限制。
第一指示信息主要目的是告知RRC实体MAC实体的判断结果是无法在随机接入过程中传输数据，可以理解的是，该第一指示信息的作用可以有多种表达方式，例如：该第一指示信息可以用于指示无法在所述随机接入过程中发送所述第一RRC消息；再例如：该第一指示信息可以用于当前覆盖等级所支持的数据量不满足第一RRC消息的大小；再例如：该第一指示信息可以用于指示第一RRC消息无法传输；再例如：该第一指示信息可以用于指示需要不包含数据的RRC消息；再例如：该第一指示信息可以用于指示本次随机接入过程中不采用数据早传流程，或者本次随机接入过程中不能传输数据等，对此本申请不做限制。同样的，第二指示信息的目的是也是指示在传输过程中发现资源不足以传输第一RRC消息，可以理解的是，该第二指示信息的作用可以有多种表达方式，例如：该第二指示信息可以用于指示上行资源不足以传输第一RRC消息；再例如：该第二指示信息可以用于指示获取不包含带传输数据的第二RRC消息；再例如：该第二指示信息可以用于指示传输第一RRC消息失败；再例如：该第二指示信息可以用于指示本次随机接入过程中不能传输数据等，对此本申请不做限制。
在另一种可能的实施方式中，通信装置的MAC实体从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据(参考实施例三的步骤1)。
所述MAC实体将所述通信装置的覆盖等级返回所述上层实体(参考实施例三的步骤2)。
在该方案中，当上层实体是RRC实体时，所述RRC实体向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；所述RRC实体接收所述下层实体返回的所述通信装置的覆盖等级；若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则所述RRC实体向所述下层实体发送所述第一RRC消息； 其中，所述第一RRC消息包括待传输数据。
第一指示信息的含义与前述的方案中不同，这里RRC实体向MAC实体发送第一指示信息的目的是获取覆盖等级，因此第一指示信息除了可以指示随机接入过程中传输待传输数据之外，还可以指示获取覆盖等级，或者指示MAC实体将覆盖等级返回RRC实体等，对此本申请不做限制。
可选的，在上述方案的基础上，若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则所述RRC实体向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，在上述方案的基础上，所述方法还包括：
所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。上述方案的实现可参考实施例三的步骤3、6。
可选的，在上述方案的基础上，所述方法还包括：
若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。该方案的实现可参考实施例三的步骤7。
该方案中，上层实体是RRC实体时，所述RRC实体接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。该方案的具体实现可参考实施例三的步骤4和5。
可选的，在上述方案的基础上，若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；所述MAC实体向所述下层实体发送所述第二RRC消息。
在上述方案中，是否在随机接入过程中传输业务数据等非信令数据，由通信装置的RRC实体决定。该方案中的第二指示信息与前述方案中的含义相同，在此不在赘述。
在前述的方案中，还应理解上层实体包括跟当前实体相邻的或者不相邻的位于当前实体上层的实体，例如：RRC实体和MAC实体之间还可能包括其他功能实体。
本申请提供的通信装置的随机接入方法，提供随机接入过程中MAC实体和RRC实体之间的交互方案，使得数据早传流程和传统随机接入流程之间可以灵活切换，并且在进行数据早传流程中可无缝回退到传统的随机接入流程，无需重新发送随机接入前导码，也无需重新接受随机接入响应，节省信令开销，利于通信装置的降低功耗和传输时延。
图6为本申请提供的通信装置实施例一的结构示意图，如图6所示，所述通信装置10包括MAC实体11和RRC实体12，在该通信装置的具体实现中，MAC实体11和RRC实体12可以设置在同一个装置中，也可以进行分布是设置，分别设置在不同的装置中，对此本申请不做限制。
所述MAC实体11用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息；或者，
若所述资源不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息。
可选的，所述RRC实体12用于：
向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
可选的，所述RRC实体12还用于：
接收所述下层实体发送的指示信息，所述指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
可选的，所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，
分配给所述通信装置的资源不满足所述第一RRC消息的大小。
可选的，所述RRC实体12还用于：
向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
上述任一实现方式提供的通信装置，用于实现前述方法实施例中提供的通信装置的随机接入方法，其实现原理和技术效果类似，在此不再赘述。
上述通信装置10的另一种实现方案中，所述MAC实体11用于：
从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据；
将所述通信装置的覆盖等级返回所述上层实体。
可选的，所述MAC实体11还用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述MAC实体11还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
向所述下层实体发送所述第二RRC消息。
可选的，所述RRC实体12用于：
向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
接收所述下层实体返回的所述通信装置的覆盖等级；
若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
可选的，所述RRC实体12还用于：
接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
可选的，所述RRC实体12还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
上述任一实现方式提供的通信装置，用于实现前述方法实施例中提供的通信装置的随机接入方法，其实现原理和技术效果类似，在此不再赘述。
图7为本申请提供的通信设备实施例一的结构示意图，如图7所示，所述通信设备包括：用于存储计算机指令的存储器和处理器，所述处理器用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
若所述通信设备的覆盖等级所支持的数据量满足所述第一RRC消息的大小，确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述处理器还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息；或者，
若所述资源不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息。
可选的，所述处理器用于：
向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
可选的，所述处理器还用于：
接收上层实体发送的第一指示信息，所述第一指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
接收上层实体发送的第二指示信息，所述第二指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
在该通信设备的另一种具体实现中，所述处理器用于：
从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据；
将所述通信装置的覆盖等级返回所述上层实体。
可选的，所述处理器还用于：
从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
可选的，所述处理器还用于：
若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
可选的，所述处理器还用于：
从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
向所述下层实体发送所述第二RRC消息。
可选的，所述处理器用于：
向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
接收所述下层实体返回的所述通信装置的覆盖等级；
若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
可选的，所述处理器还用于：
接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
可选的，所述处理器还用于：
若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
在上述通信设备的任一实现方式中，处理器的数量为至少一个，用来执行存储器存储的执行指令，即计算机程序。该通信设备还可以包括用于接收和发送数据的收发器。可选的，存储器还可以集成在处理器内部。
本申请还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现前述任一实现方案提供的通信装置的随机接入方法。
本申请还提供一种可读存储介质，可读存储介质和计算机指令，所述计算机程序用于实现前述任一实现方案提供的通信装置的随机接入方法。
本申请还提供一种程序产品，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备执行前述任一实现方式提供的通信装置的随机接入方法。
在上述通信设备的实施例中，还应理解，处理器可以是中央处理单元(英文：Central Processing Unit，简称：CPU)，还可以是其他通用处理器、数字信号处理器(英文：Digital Signal Processor，简称：DSP)、专用集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)等。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储器中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储器(存储介质)包括：只读存储器(英文：read-only memory，缩写：ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文：magnetic tape)、软盘(英文：floppy disk)、光盘(英文：optical disc)及其任意组合。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制。

Claims (37)

  1. 一种通信装置的随机接入方法，所述通信装置包括介质访问控制MAC实体，其特征在于，所述方法包括：
    所述MAC实体从上层实体接收第一无线资源控制RRC消息，所述第一RRC消息包括待传输数据；
    若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
    若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  4. 根据权利要求2所述的方法，其特征在于，还包括：
    若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  5. 根据权利要求1-4任一所述的方法，其特征在于，还包括：
    所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第二RRC消息；或者，
    若所述资源不满足所述第一RRC消息的大小所述MAC实体向所述下层实体发送所述第二RRC消息。
  6. 一种通信装置的随机接入方法，所述通信装置包括无线资源控制RRC实体，其特征在于，所述方法包括：
    所述RRC实体向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
  7. 根据权利要求6所述的方法，其特征在于，还包括：
    所述RRC实体接收所述下层实体发送的指示信息，所述指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
  8. 根据权利要求7所述的方法，其特征在于，所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，
    分配给所述通信装置的资源不满足所述第一RRC消息的大小。
  9. 根据权利要求6至8任一所述的方法，其特征在于，还包括：
    所述RRC实体向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
  10. 一种通信装置的随机接入方法，所述通信装置包括介质访问控制MAC实体，其特征在于，所述方法包括：
    所述MAC实体从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待传输数据；
    所述MAC实体将所述通信装置的覆盖等级返回所述上层实体。
  11. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述MAC实体从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
    所述MAC实体确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述MAC实体从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
    若所述资源满足所述第一RRC消息的大小，所述MAC实体向所述下层实体发送所述第一RRC消息。
  13. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    若所述资源不满足所述第一RRC消息的大小，所述MAC实体向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  14. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述MAC实体从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
    所述MAC实体向所述下层实体发送所述第二RRC消息。
  15. 一种通信装置的随机接入方法，所述通信装置包括无线资源控制RRC实体，其特征在于，所述方法包括：
    所述RRC实体向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
    所述RRC实体接收所述下层实体返回的所述通信装置的覆盖等级；
    若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则所述RRC实体向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    所述RRC实体接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
    所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
  17. 根据权利要求15或16所述的方法，其特征在于，还包括：
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则所述RRC实体向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述 待发送数据。
  18. 一种通信装置，所述通信装置包括介质访问控制MAC实体，其特征在于，所述MAC实体用于：
    从上层实体接收第一无线资源控制RRC消息，所述第一RRC消息包括待传输数据；
    若所述通信装置的覆盖等级所支持的数据量满足所述第一RRC消息的大小，确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
  19. 根据权利要求18所述的装置，其特征在于，所述MAC实体还用于：
    从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
    若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
  20. 根据权利要求18或19所述的装置，其特征在于，所述MAC实体还用于：
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向上层实体发送第一指示信息，所述第一指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  21. 根据权利要求19所述的装置，其特征在于，所述MAC实体还用于：
    若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  22. 根据权利要求18至21任一所述的装置，其特征在于，所述MAC实体还用于：
    从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息；或者，
    若所述资源不满足所述第一RRC消息的大小，向所述下层实体发送所述第二RRC消息。
  23. 一种通信装置，所述通信装置包括无线资源控制RRC实体，其特征在于，所述RRC实体用于：
    向下层实体发送第一RRC消息，所述第一RRC消息包括待传输数据。
  24. 根据权利要求23所述的装置，其特征在于，所述RRC实体还用于：
    接收所述下层实体发送的指示信息，所述指示信息用于指示无法在随机接入过程中发送所述第一RRC消息。
  25. 根据权利要求24所述的装置，其特征在于，所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小；或者，
    分配给所述通信装置的资源不满足所述第一RRC消息的大小。
  26. 根据权利要求23至25任一所述的装置，其特征在于，所述RRC实体还用于：
    向下层实体第二RRC消息，所述第二RRC消息不包括所述待发送数据。
  27. 一种通信装置，所述通信装置包括介质访问控制MAC实体，其特征在于，所述MAC实体用于：
    从上层实体接收第一指示信息，所述第一指示信息用于指示在随机接入过程中传输待 传输数据；
    将所述通信装置的覆盖等级返回所述上层实体。
  28. 根据权利要求27所述的装置，其特征在于，所述MAC实体还用于：
    从上层实体接收第一RRC消息，所述第一RRC消息包括待传输数据；
    确定第一随机接入前导码，所述第一随机接入前导码用于指示在随机接入过程中发送所述第一RRC消息。
  29. 根据权利要求28所述的装置，其特征在于，所述MAC实体还用于：
    从下层实体接收响应于所述第一随机接入前导码的响应消息，所述响应消息包括分配给所述通信装置的资源；
    若所述资源满足所述第一RRC消息的大小，向所述下层实体发送所述第一RRC消息。
  30. 根据权利要求29所述的装置，其特征在于，所述MAC实体还用于：
    若所述资源不满足所述第一RRC消息的大小，向上层实体发送第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息。
  31. 根据权利要求27所述的装置，其特征在于，所述MAC实体还用于：
    从所述上层实体接收第二RRC消息，所述第二RRC消息不包括所述待发送数据；
    向所述下层实体发送所述第二RRC消息。
  32. 一种通信装置，所述通信装置包括无线资源控制RRC实体，其特征在于，所述RRC实体用于：
    向下层实体发送第一指示信息，所述第一指示信息用于指示在随机接入过程中传输带传输数据；
    接收所述下层实体返回的所述通信装置的覆盖等级；
    若所述通信装置的覆盖等级所支持的数据量满足第一RRC消息的大小，则向所述下层实体发送所述第一RRC消息；其中，所述第一RRC消息包括待传输数据。
  33. 根据权利要求32所述的装置，其特征在于，所述RRC实体还用于：
    接收所述下层实体发送的第二指示信息，所述第二指示信息用于指示无法在所述随机接入过程中发送所述第一RRC消息；
    向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
  34. 根据权利要求32或33所述的装置，其特征在于，所述RRC实体还用于：
    若所述通信装置的覆盖等级所支持的数据量不满足所述第一RRC消息的大小，则向所述下层实体发送第二RRC消息；其中，所述第二RRC消息不包括所述待发送数据。
  35. 一种通信装置，其特征在于，所述通信设备包括：用于存储计算机指令的存储器和处理器，所述处理器用于执行权利要求1至17任一项所述的通信装置的随机接入方法。
  36. 一种可读存储介质，其特征在于，包括：可读存储介质和计算机指令，所述计算机程序用于实现权利要求1至17任一项所述的通信装置的随机接入方法。
  37. 一种程序产品，其特征在于，所述计算机指令存储在可读存储介质中，通信设备的至少一个处理器从所述可读存储介质读取并执行所述计算机指令，使得通信设备执行权利要求1至17任一项所述的通信装置的随机接入方法。
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