WO2018033106A1 - 一种信道接入执行方法及装置 - Google Patents

一种信道接入执行方法及装置 Download PDF

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Publication number
WO2018033106A1
WO2018033106A1 PCT/CN2017/097760 CN2017097760W WO2018033106A1 WO 2018033106 A1 WO2018033106 A1 WO 2018033106A1 CN 2017097760 W CN2017097760 W CN 2017097760W WO 2018033106 A1 WO2018033106 A1 WO 2018033106A1
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WIPO (PCT)
Prior art keywords
channel access
configuration information
configuration
msg2
terminal
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PCT/CN2017/097760
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English (en)
French (fr)
Inventor
周明宇
孙立新
丁颖哲
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北京佰才邦技术有限公司
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Publication of WO2018033106A1 publication Critical patent/WO2018033106A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a channel access execution method and apparatus.
  • the first generation of mobile communication refers to the original analog, voice-only cellular phone standard, mainly using analog technology and Frequency Division Multiple Access (FDMA) access method.
  • the second generation of mobile communications introduced digital technology to improve network capacity, improve voice quality and confidentiality, with Global System for Mobile Communication (GSM) and Code Division Multiple (Code Division Multiple) Access, CDMA (IS-95) is representative.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple
  • IS-95 Code Division Multiple
  • the third generation mobile communication mainly refers to CDMA2000, Wideband Code Division Multiple Access (WCDMA), and Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technologies. They all use code division multiple access as an access technology.
  • the standards of the fourth-generation mobile communication system are relatively uniform internationally, and are long-term evolution (Long Term Evolution/Long Term Evolution-Advanced, LTE) developed by the International Organization for Standardization (3rd Generation Partnership Project (3GPP)).
  • LTE-A Long Term Evolution/Long Term Evolution-Advanced
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • MulteFire is a newly defined uplink transmission method based on the LTE R13 Authorized Admission Access (LAA) downlink transmission method, and can work independently in an unlicensed frequency band, that is, Stand-alone LTE-U.
  • LAA Authorized Admission Access
  • MulteFire (abbreviation MF) supports two network modes (or network services), namely Public Land Mobile Network (PLMN) access mode and Neutral Host Network (NHN) access mode.
  • PLMN Public Land Mobile Network
  • NHS Neutral Host Network
  • the MF network can also support both network modes.
  • the MF supports the contention-based random access operation procedure in the traditional LTE, and the operation process specifically includes four steps of Msg1-Msg4.
  • the network side device allocates an uplink scheduling grant (UL grant) to the Msg1 in the Msg2, and multiple UEs that send the same Msg1 send the Msg3 in the same UL grant.
  • Msg3 by means of hybrid automatic repeat request (HARQ), causes the evolved Node B (eNB) to finally obtain the Msg3 sent by one (for example, the highest power) UE, and the eNB sends the UE ID of the Msg3 successfully in Msg4.
  • HARQ hybrid automatic repeat request
  • the UE In the MF, the UE needs to perform a channel access procedure before transmitting the Msg3, that is, a Listen Before Talk (LBT) mechanism.
  • LBT Listen Before Talk
  • the configuration of the LBT gap depends on the Radio Resource Control (RRC) configuration, but the initially accessed UE does not establish an RRC connection when initiating random access, and thus cannot obtain when transmitting Msg3.
  • RRC Radio Resource Control
  • the configuration of the LBT gap may cause the Msg3 transmission to fail due to the busy channel or the transmission failure of other users.
  • the purpose of the present disclosure is to enable the terminal to perform an operation flow of the LBT after listening to the RRC connection without establishing a radio resource control, so that the MSG3 can be successfully transmitted in the random access process.
  • the present disclosure provides a channel access execution method applied to a network side device, where the method includes: sending a notification message carrying channel access configuration information to a terminal, so that no wireless is established.
  • the resource control RRC connected terminal can perform a channel access operation procedure according to the channel access configuration information of the notification message.
  • sending, to the terminal, a notification message carrying the channel access configuration information includes: sending, by using at least one of a system broadcast message and a random access second message MSG2, the channel access configuration information to the terminal.
  • the channel access configuration information includes multiple configuration factors, and each configuration factor has There is at least one configuration result; if the channel access configuration information is sent to the terminal through the MSG2, the channel access configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2 Medium, and the combined result of the configuration factor in the corresponding configuration result is expressed in binary.
  • the present disclosure further provides a channel access execution method applied to a terminal side, where the method includes: acquiring a notification message that is sent by a network side device and carrying channel access configuration information; The radio resource controls the RRC connection, and performs a channel access operation procedure according to the channel access configuration information in the notification message.
  • acquiring the notification message that is sent by the network side device and carrying the channel access configuration information includes: acquiring, by using at least one of a system broadcast message and a random access second message MSG2 sent from the network side device Channel access configuration information.
  • the present disclosure also provides a network side device including a transmitter, a memory, and a processor.
  • the memory stores a software program.
  • the processor controls the transmitter to perform the above-described channel access execution method applied to the network side device by running the software program.
  • the present disclosure also provides a terminal including a receiver, a memory, an executor, and a processor.
  • the memory stores a software program; the processor runs the software program to: control the receiver to acquire a notification message that is sent by the network side device and carries the channel access configuration information; if the terminal does not establish a wireless resource Controlling the RRC connection, the control executor performs a channel access operation procedure according to the channel access configuration information in the notification message.
  • the present disclosure also provides a network side device.
  • the network side device includes a sending module, and the sending module is configured to send a notification message carrying the channel access configuration information to the terminal, so that the terminal that does not establish the radio resource control RRC connection can be connected according to the channel in the notification message. Enter the configuration information and perform the channel access operation flow.
  • the present disclosure also provides a terminal.
  • the terminal includes: an obtaining module, configured to acquire a notification message that is sent by the network side device and that carries the channel access configuration information; a determining module, configured to determine whether the terminal establishes a radio resource control RRC connection; and an execution module, configured to: In a case where the terminal does not establish a radio resource control RRC connection, the channel access operation procedure is performed according to the channel access configuration information in the notification message.
  • the present disclosure also provides a communication system including the above network side device and the above terminal.
  • the solution of the present disclosure enables the terminal to complete the channel access related process without establishing an RRC connection, thereby ensuring that the terminal can successfully send the MSG3 in the random access process.
  • FIG. 1 is a schematic flowchart diagram of an LBT execution method applied to a network side device according to the present disclosure
  • FIG. 2 is a schematic flowchart diagram of an LBT execution method applied to a terminal side according to the present disclosure
  • FIG. 3 is a schematic structural diagram of a network side device according to the present disclosure.
  • FIG. 4 is a schematic structural diagram of a terminal provided by the present disclosure.
  • FIG. 5 is a schematic structural diagram of a communication system provided by the present disclosure.
  • FIG. 6 is a schematic structural diagram of another example of a network side device according to the present disclosure.
  • FIG. 7 is a schematic structural diagram of another example of a terminal provided by the present disclosure.
  • FIG. 8 is a schematic structural diagram of another example of a communication system provided by the present disclosure.
  • the user terminal UE needs to complete the channel access procedure before transmitting the Msg3, that is, the Listen Before Talk (LBT) operation.
  • LBT Listen Before Talk
  • RRC Radio Resource Control
  • an embodiment of the present disclosure provides a random access method applied to a network side device.
  • the network side device mentioned herein includes a base station, an evolved Node B (eNB), an access point AP, and the like.
  • the random access method includes step S11.
  • Step S11 Send a notification message carrying the LBT configuration information to the terminal, so that the terminal that does not establish the radio resource control RRC connection can perform the LBT operation procedure according to the LBT configuration information in the notification message.
  • the embodiment can broadcast a message through the system. And at least one of the random access second message MSG2, the LBT configuration information is sent to the terminal, so that the terminal can perform the LBT operation flow according to the LBT configuration information.
  • the method in this embodiment sends the LBT configuration information to the terminal by using at least one of the system broadcast message and the random access second message MSG2, so that the terminal can complete the LBT related process without establishing an RRC connection, and further Ensure that the terminal can successfully send MSG3 during the random access process.
  • the LBT configuration information includes a plurality of configuration factors, each of which has at least one configuration result.
  • the configuration factor includes at least a channel access type supported by the network side device, an uplink transmission start and stop position (for example, a Physical Uplink Shared Channel (PUSCH) start position), and a channel access priority.
  • the terminal can complete the operation process of the LBT based on at least the LBT type, the LBT uplink transmission start and stop position, and the LBT priority.
  • the fourth generation mobile communication system LTE/LTE-A and its derived MulteFire are taken as an example, and the LBT execution method of this embodiment is introduced in detail in combination with the implementation manner.
  • the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response (RAR) of the MSG2, and all the configuration information of the LBT is sent to the terminal only through the MSG2.
  • the configuration factors of the LBT configuration information include: an LBT type (LBT type) supported by the network side device, and an LBT gap (a time interval reserved for the LBT in the uplink subframe, which is used to determine the uplink transmission start position). Information) and LBT channel access priority.
  • LBT gap has four configuration results, namely 25 microseconds (us), 25us+TA (Timing Advance), symbol 1 and symbol 0 (ie no LBT gap);
  • LBT type has two configuration results That is, one shot LBT (25us) and LBT CAT-4 in the related art;
  • the LBT channel access priority has four configuration results, that is, priority 1-4. It should be noted that priority is required only when the LBT type is LBT CAT-4.
  • the channel access priority of the LBT CAT-4 is only one, for example, priority 1. If using a second-level machine language representation for all LBT types, LBT gaps, and LBT channel access priorities, there will be several combinations of results shown in Table 1.
  • the scheduled Msg3 should be located outside the TxOP (transmission timing) of the eNB, and may not need to support time division multiplexing between multiple users, so that less standard can be specified in the standard.
  • the LBT gap option (for example, only one LBT gap configuration is supported, specifically, no LBT gap), that is, it can be sent from the first symbol (symbol0) of the scheduled uplink subframe (UL subframe), and the corresponding binary code is as shown in the table. The second is shown.
  • the device when the terminal enters the random access request, the device sends the MSG1 to the network side device, and the network side device sends the MSG2 carrying the LBT configuration information to the terminal according to the MSG1, so that the terminal can obtain the LBT according to the MSG2 before sending the MSG3.
  • Configure information to perform the LBT operation process when the terminal enters the random access request, the device sends the MSG1 to the network side device, and the network side device sends the MSG2 carrying the LBT configuration information to the terminal according to the MSG1, so that the terminal can obtain the LBT according to the MSG2 before sending the MSG3.
  • Configure information to perform the LBT operation process when the terminal enters the random access request, the device sends the MSG1 to the network side device, and the network side device sends the MSG2 carrying the LBT configuration information to the terminal according to the MSG1, so that the terminal can obtain the LBT according to the MSG2 before sending the MSG3.
  • the LBT configuration information is sent to the terminal through the system broadcast message and the MSG2 message. It is assumed that the configuration factor of the LBT configuration information still includes the LBT gap, the LBT type, and the LBT channel access priority.
  • the LBT gap has four configuration results, namely configuration 1 - configuration 4; the LBT type has two configuration results, namely LBT Cat-4 and One shot LBT; there are 4 LBT channel access priorities, ie priority 1-4.
  • the two LBT gap configurations supported by the cell are encapsulated in a system broadcast message and sent to the terminal, and the specific LBT gap is configured (one of two configurations in the system broadcast message), the LBT type and the LBT.
  • the channel access priority is encapsulated in the MSG2 and sent to the terminal.
  • the UL GRANT of the MSG2 only needs to use the binary representation LBT gap as the configuration 1 or configuration 2, the LBT type and the LBT channel access priority, and the corresponding contents are shown in Table 3.
  • the network side device periodically sends a system broadcast message carrying part of the LBT configuration information, and the terminal acquires the LBT configuration information after receiving.
  • the MSG1 is sent to the network side device, and the network side device sends the MSG2 carrying the other part of the LBT configuration information to the terminal according to the MSG1, so that the terminal can perform the system according to the system before sending the MSG3.
  • the LBT operation flow is performed by broadcasting the message and the LBT configuration information in the MSG2.
  • the overhead of the LBT related information can be reduced by the system broadcast message and the MSG2 time-sharing to send the LBT configuration information to the terminal.
  • the configuration result of the LBT configuration information and the configuration result corresponding to the setting configuration factor are flexibly allocated in the system broadcast message and the MSG2, and the byte length of the MSG2 can be precisely controlled, so that the MSG2 of the solution is consistent with the MSG2 length of the related technology.
  • the third mode further indicates the content of the scheduling option in the UL GRANT content of the MSG2 on the basis of the second mode.
  • Msg3 should be located within the transmission opportunity (TxOP) of the eNB, so its LBT type can only be one-shot LBT (25 us).
  • TxOP transmission opportunity
  • the corresponding secondary coding is shown in Table 4.
  • the scheduling option is only used as an exemplary introduction, and is used to indicate that the binary in the present disclosure can not only represent the LBT configuration information, but also further express other configuration information of the UL GRANT.
  • the fourth method only sends the LBT configuration information to the terminal through the system broadcast message.
  • the network side device periodically sends a system broadcast message carrying all LBT configuration information, and after receiving the terminal, the terminal can execute the LBT operation process.
  • the fourth mode may be a configuration parameter of the LBT configuration indicated in the parameter SIB-MF/SIBx (x is a positive integer) of the system broadcast message, since the system broadcast message itself is in the related art. Notification function, so this article will not repeat the examples.
  • the above is an introduction to the LBT execution method applied to the network side device of the present disclosure. It should be noted that, in the above manner, in addition to the second-level language used to represent the configuration factor of the MSG2, it can also be expressed in other machine languages, such as decimal. In addition, the configuration factor of the LBT and the configuration result corresponding to the configuration factor are not specifically limited in this embodiment.
  • the resource allocation manner of the MSG2 can be generally expressed by using 10 bits, 6 bits, and 4 bits.
  • the present disclosure can make the resource allocation manner of the MSG2 use 6 bits or 4 bits to represent, so that a certain bit is vacated to represent the LBT configuration information.
  • the present disclosure also provides a method for performing a listen-before-issue LBT applied to a terminal side. As shown in FIG. 2, the method includes steps S21 to S22.
  • Step S21 Acquire a notification message that is sent by the network side device and carries the LBT configuration information.
  • LBT configuration information may be acquired from at least one of a system broadcast message and a random access second message MSG2 sent by the network side device.
  • Step S22 If the terminal does not establish a radio resource control RRC connection, perform an LBT operation procedure according to the LBT configuration information in the notification message.
  • the LBT execution method applied to the terminal side of the present embodiment corresponds to the LBT execution method of the network side device. Therefore, the LBT execution method of the terminal side of the present embodiment can also achieve the same according to the LBT execution method of the network side device. Beneficial effect.
  • the LBT configuration information includes multiple configuration factors, and each configuration factor has at least one configuration result.
  • the LBT configuration information is obtained from at least the MSG2 sent by the network side device, the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2, and the configuration factor is expressed in the machine language. The combined result in .
  • the configuration factor of the LBT configuration information and the corresponding configuration result are both established. If only the configuration information of the LBT is obtained from the MSG2 sent by the network side device, the terminal can directly determine that the configuration information in the MSG2 is included. Which configuration factors and corresponding configuration results, so the corresponding machine language indicates the meaning of several combined results is also determined, only need to read directly can.
  • the terminal obtains a part of the configuration factor of the LBT configuration information from the system broadcast message, and obtains another part of the configuration factor from the MSG2, it is assumed that the network side device can flexibly allocate the LBT configuration information to the system broadcast message and the MSG2, and the terminal cannot directly Determining, in the step of acquiring the LBT configuration information from the MSG2, the terminal first obtains a part of the configuration factor of the LBT configuration information from the system broadcast message, and according to the The configuration factor obtained from the system broadcast message determines the remaining configuration factors that need to be obtained from the MSG2.
  • the reading mode of the machine language can be determined, and the information of the configuration factor corresponding to the machine language in the MSG2 is converted according to the reading mode.
  • the configuration factors of the LBT configuration information include four types of A, B, C, and D. If all are sent by MSG2, the terminal only needs to save the reading mode of one machine language.
  • the network side device randomly allocates the configuration factors A, B, C, and D to the system broadcast message and the MSG2 in a dynamic manner, it is assumed that the configuration factor A is sent by the system broadcast message, and the configuration factors B, C, and D are sent by the MSG2.
  • the terminal does not know which configuration factors are carried in MSG2, so it is impossible to determine the meaning of the specific representation from the machine language of MSG2.
  • the terminal determines that the system broadcast message carries the configuration factor A, and determines that the configuration factors carried in the MSG2 are B, C, and D.
  • the machine language in the MSG 2 is converted into specific configuration information, thereby completing the operation flow of the LBT.
  • the network side device 3 includes a transmitter 31, a memory 32, and a processor 33.
  • the memory 32 stores a software program
  • the processor runs the software program to notify the sender 31 to send a notification message carrying the LBT configuration information to the terminal, so that the terminal that does not establish the RRC connection of the RRC connection can be based on the LBT in the notification message.
  • the network side device of the embodiment sends the LBT configuration information to the terminal by using the notification message, so that the terminal can complete the related process of the LBT without establishing an RRC connection, thereby ensuring the terminal.
  • MSG3 can be successfully transmitted.
  • the LBT configuration information of this embodiment includes multiple configuration factors, and each configuration factor has at least one configuration result.
  • the LBT configuration information includes at least the following configuration factors: an LBT type supported by the network side device, an LBT uplink transmission start and stop position, and an LBT priority.
  • the LBT configuration information is sent to the terminal through the MSG2, the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2, and the configuration factor is expressed in binary in the corresponding configuration result. Combine the results.
  • the processor 33 of the embodiment controls the transmitter 31 to send a part of the configuration factors in the LBT configuration information through the system broadcast message by running the software program. Go to the terminal and send another part of the configuration factor in the LBT configuration information to the terminal through MSG2.
  • An embodiment of the present disclosure also provides a network side device 6.
  • the network side device 6 includes a transmitting module 61.
  • the sending module 61 is configured to send a notification message carrying the LBT configuration information to the terminal, so that the terminal that does not establish the radio resource control RRC connection can perform the LBT operation procedure according to the LBT configuration information in the notification message.
  • the LBT configuration information of this embodiment includes multiple configuration factors, and each configuration factor has at least one configuration result.
  • the LBT configuration information includes at least the following configuration factors: an LBT type supported by the network side device, an LBT uplink transmission start and stop position, and an LBT priority. If the LBT configuration information is sent to the terminal through the MSG2, the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2, and the combined result of the configuration factor at the corresponding configuration result is expressed in binary.
  • the sending module 61 sends a part of the configuration factor in the configuration information of the LBT to the terminal through the system broadcast message, and another one of the LBT configuration information. A part of the configuration factor is sent to the terminal through MSG2.
  • the network side device of the present embodiment corresponds to the LBT execution method of the network side device provided by the present disclosure, and thus the same technical effect can be achieved.
  • another embodiment of the present disclosure further provides a terminal 4.
  • the terminal 4 package A receiver 41, a memory 42, an actuator 43, and a processor 44 are included.
  • the memory 42 stores a software program, and the processor 44 controls the receiver 41 to acquire the notification message carried by the network side device and carries the LBT configuration information; if the terminal does not establish the radio resource control RRC connection, the further The control executor 43 executes the LBT operation flow based on the LBT configuration information in the notification message.
  • the terminal in this embodiment corresponds to the network side device provided by the present disclosure. Therefore, based on the network side device, the terminal in this embodiment can achieve the same technical effect as the network side device.
  • the LBT configuration information of this embodiment includes multiple configuration factors, and each configuration factor has at least one configuration result.
  • the receiver 41 acquires LBT configuration information from at least the MSG2 sent by the network side device, the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2, and is expressed in a machine language. The result of the combination of the configuration factors at the corresponding configuration results.
  • the processor 44 acquires a part of the configuration factor of the LBT configuration information from the system broadcast message according to the software program control receiver 41, and acquires the LBT configuration from the MSG2. Another part of the configuration factor for the information.
  • the process of the receiver 41 acquiring the configuration factor is as follows: acquiring a part of the configuration factor of the LBT configuration information from the system broadcast message, and determining the requirement according to the configuration factor obtained from the system broadcast message.
  • the read mode will be the corresponding configuration factor for the machine language conversion obtained.
  • the terminal 7 includes an acquisition module 71, a determination module 72, and an execution module 73.
  • the obtaining module 71 is configured to acquire a notification message that is sent by the network side device and carries the LBT configuration information.
  • the determining module 72 is configured to determine whether the terminal 7 establishes a radio resource control RRC connection.
  • the executing module 73 is configured to execute an LBT operation flow according to the LBT configuration information in the notification message if the terminal 7 does not establish a radio resource control RRC connection.
  • the LBT configuration information of this embodiment includes multiple configuration factors, and each configuration factor has at least one configuration result.
  • the obtaining module 71 obtains LBT configuration information from at least the MSG2 sent by the network side device, the LBT configuration information is encapsulated in the content of the uplink scheduling grant UL GRANT of the random access response RAR of the MSG2, and the configuration factor is expressed in a machine language. The combined result at the corresponding configuration result. Specifically, if the LBT configuration information is obtained by the system broadcast message and the MSG2, the obtaining module 71 acquires a part of the configuration factor of the LBT configuration information from the system broadcast message, and acquires another part of the configuration factor of the LBT configuration information from the MSG2.
  • the process of acquiring the configuration factor by the obtaining module 71 is as follows: acquiring a part of the configuration factor of the LBT configuration information from the system broadcast message, and determining, according to the configuration factor obtained from the system broadcast message, the remaining required to be acquired from the MSG2. a configuration factor; the machine language for obtaining the corresponding LBT configuration information from the MSG2, determining the machine language reading mode according to the determined remaining configuration factors acquired from the MSG2, and acquiring according to the determined reading manner The corresponding configuration factor for the machine language conversion.
  • the terminal of the present embodiment corresponds to the LBT execution method applied to the terminal side provided by the present disclosure, and thus the same technical effect can be achieved.
  • the present disclosure also provides a communication system 5 including the above-described network side device 3 and the above-described terminal 4.
  • the communication system of the present disclosure sends the LBT configuration information to the terminal by using at least one of the system broadcast message and the random access second message MSG2, so that the terminal can complete the related process of the LBT without establishing an RRC connection, and further Ensure that the terminal can successfully send MSG3 during the random access process.
  • the present disclosure also provides a communication system 8 including the above-described network side device 6 and the above terminal 7.
  • system and “network” are used interchangeably herein.
  • B corresponding to A means B and A phase. Association, according to A can determine B. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开提供一种信道接入执行方法和装置。网络侧设备的信道接入执行方法包括：向终端发送一携带有信道接入配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据该通知消息的信道接入配置信息，执行信道接入操作流程。终端侧的信道接入执行方法包括：获取由网络侧设备发送的携带有信道接入配置信息的通知消息；若终端未建立无线资源控制RRC连接，则根据该通知消息中的信道接入配置信息，执行信道接入操作流程。

Description

一种信道接入执行方法及装置
相关申请的交叉引用
本申请主张在2016年8月19日在中国提交的中国专利申请号No.201610696869.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信领域，特别是涉及一种信道接入执行方法及装置。
背景技术
移动通信经历了第一代、第二代、第三代、第四代。第一代移动通信是指最初的模拟、仅限语音通话的蜂窝电话标准，主要采用的是模拟技术和频分多址(Frequency Division Multiple Access，FDMA)接入方法。第二代移动通信引入了数字技术，提高了网络容量、改善了话音质量和保密性，以“全球移动通信系统”(Global System for Mobile Communication，GSM)和“码分多址”(Code Division Multiple Access，CDMA(IS-95))为代表。第三代移动通信主要指CDMA2000，宽带码分多址(Wideband Code Division Multiple Access(WCDMA))，时分同步码分多址(Time Division-Synchronous Code Division Multiple Access(TD-SCDMA))三种技术，它们均以码分多址作为接入技术。第四代移动通信系统的标准在国际上相对统一，为国际标准化组织——第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)制定的长期演进(Long Term Evolution/Long Term Evolution-Advanced，LTE/LTE-A)，其下行链路基于正交频分多址接入(Orthogonal Frequency Division Multiple Access，OFDMA)，上行链路基于单载波频分多址接入(Single Carrier-Frequency Division Multiple Access，SC-FDMA)，依据灵活的带宽和自适应的调制编码方式，达到了下行峰值速率1Gbps，上行峰值速率500Mbps的高速传输。
MulteFire(MF)为一种在LTE R13授权辅助接入(LAA)下行传输方法基础上，新定义的上行传输方法，并且可以独立工作于非授权频段，即 stand-alone LTE-U。MulteFire(缩写MF)支持两种网络模式(或称网络服务)，即公共陆地移动网络(Public Land Mobile Network，PLMN)接入模式和中立主机网络(Neutral Host Network，缩写NHN)接入模式。MF网络也可以同时支持这两个网络模式。
MF支持传统LTE中基于竞争的随机接入操作流程，该操作流程具体包括Msg1-Msg4四个步骤。当多个用户终端UE选择相同的Msg1而发生碰撞时，网络侧设备在Msg2中对该Msg1分配上行调度授权(UL grant)，多个发送相同Msg1的UE会在相同的UL grant中发送Msg3，Msg3通过混合自动重传请求(HARQ)的方式使得演进的节点B(evolved Node B，eNB)最终最多获得一个(例如功率最大)UE发送的Msg3，eNB在Msg4中发送成功接收Msg3的UE ID。在MF中，UE在发送Msg3前需要进行信道接入流程，即先听后说(Listen Before Talk，LBT)机制。目前对于LBT时间间隔(LBT gap)的配置取决于无线资源控制(Radio Resource Control，RRC)配置，但是初始接入的UE在发起随机接入时并没有建立RRC连接，因此无法获得发送Msg3时关于LBT gap的相关配置，可能导致因信道繁忙而出现Msg3发送失败的现象或者导致其他用户的发送失败。
发明内容
本公开的目的是让终端在未建立无线资源控制RRC连接的情况下也能够执行先听后说LBT的操作流程，从而在随机接入过程中能够成功发送MSG3。
为实现上述发明目的，一方面，本公开提供一种应用于网络侧设备的信道接入执行方法，所述方法包括：向终端发送一携带有信道接入配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据所述通知消息的所述信道接入配置信息，执行信道接入操作流程。
可选地，向终端发送一携带有信道接入配置信息的通知消息，包括：通过系统广播消息和随机接入第二消息MSG2中的至少一个，将所述信道接入配置信息发送至终端。
可选地，所述信道接入配置信息包括多个配置因子，每一个配置因子具 有至少一个的配置结果；若通过MSG2，将所述信道接入配置信息发送至终端，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以二进制表示配置因子在对应的配置结果中的组合结果。
另一方面，本公开还提供一种应用于终端侧的信道接入执行方法，所述方法包括：获取由网络侧设备发送的携带有信道接入配置信息的通知消息；若所述终端未建立无线资源控制RRC连接，则根据该通知消息中的所述信道接入配置信息，执行信道接入操作流程。
可选地，获取由网络侧设备发送的携带有信道接入配置信息的通知消息，包括：通过从网络侧设备发送的系统广播消息和随机接入第二消息MSG2中的至少一个中，获取所述信道接入配置信息。
此外，本公开还提供一种网络侧设备，该网络侧设备包括发送器、存储器以及处理器。所述存储器存储软件程序。所述处理器通过运行所述软件程序以控制所述发送器执行上述应用于网络侧设备的信道接入执行方法。
此外，本公开还提供一种终端，该终端包括接收器、存储器、执行器以及处理器。所述存储器存储软件程序；所述处理器通过运行所述软件程序以：控制所述接收器获取由网络侧设备发送的携带有信道接入配置信息的通知消息；若所述终端未建立无线资源控制RRC连接，则控制执行器根据该通知消息中的所述信道接入配置信息，执行信道接入操作流程。
此外，本公开还提供一种网络侧设备。所述网络侧设备包括发送模块，所述发送模块用于向终端发送一携带有信道接入配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据通知消息中的所述信道接入配置信息，执行信道接入操作流程。
此外，本公开还提供一种终端。所述终端包括：获取模块，用于获取由网络侧设备发送的携带有信道接入配置信息的通知消息；判断模块，用于判断上述终端是否建立无线资源控制RRC连接；以及执行模块，用于在终端未建立无线资源控制RRC连接的情况下，根据该通知消息中的信道接入配置信息，执行信道接入操作流程。
此外，本公开还提供一种通信系统，包括上述网络侧设备以及上述终端。
本公开的上述方案具有如下有益效果：本公开的方案能够让终端在未建立RRC连接下，也能够完成信道接入相关流程，进而保证终端在随机接入过程中，能够成功发送MSG3。
附图说明
图1为本公开提供的应用于网络侧设备的LBT执行方法的流程示意图；
图2为本公开提供的应用于终端侧的LBT执行方法的流程示意图；
图3为本公开提供的网络侧设备的结构示意图；
图4为本公开提供的终端的结构示意图；
图5为本公开提供的通信系统的结构示意图；
图6为本公开提供的网络侧设备的另一示例的结构示意图；
图7为本公开提供的终端的另一示例的结构示意图；以及
图8为本公开提供的通信系统的另一示例的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
在相关的随机接入方法中，用户终端UE发送Msg3前需要完成信道接入流程，即先听后说(Listen Before Talk，LBT)操作。但是，对于初始接入的UE而言，在随机接入的过程中并没有建立无线资源控制(Radio Resource Control，RRC)连接，因此可能出现因无LBT相关配置信息而导致发送Msg3时与其他用户相互阻塞的情况。针对这一问题，本公开提供了如下解决方案。
一方面，本公开的实施例提供一种应用于网络侧设备的随机接入方法，本文中提到的网络侧设备包括基站、节点B(evolved Node B，eNB)、接入点AP等。如图1所示，该随机接入方法包括步骤S11。
步骤S11：向终端发送一携带有LBT配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据通知消息中的LBT配置信息，执行LBT操作流程。
作为示例性介绍，在上述步骤S11中，本实施例可以通过系统广播消息 和随机接入第二消息MSG2中的至少一个，将LBT配置信息发送至终端，从而使得终端能够根据LBT配置信息，执行LBT操作流程。
可见，本实施例的方法利用系统广播消息和随机接入第二消息MSG2中的至少一个将LBT配置信息发送至终端，从而让终端在未建立RRC连接下，也能够完成LBT的相关流程，进而保证终端在随机接入过程中，能够成功发送MSG3。
在实际应用中，LBT配置信息包括多个配置因子，每一个配置因子具有至少一个配置结果。
作为示例性介绍，上述配置因子至少要包括网络侧设备支持的信道接入类型、上行传输起止位置(例如，物理上行共享信道(Physical Uplink Shared Channel，PUSCH)起始位置)以及信道接入优先级。在相关技术中，终端至少基于LBT类型、LBT上行传输起止位置以及LBT优先级才能完成LBT的操作流程。
以下采用第四代移动通信系统LTE/LTE-A及其衍生的MulteFire作为举例，结合实施方式对本实施例的LBT执行方法进行详细介绍。
方式一
在方式一中，将LBT配置信息封装在MSG2的随机接入响应(Random Access Response(RAR))的上行调度授权UL GRANT的内容中，只通过MSG2将LBT的全部配置信息发送至终端。
假设LBT配置信息的配置因子包括：网络侧设备支持的LBT type(LBT类型)、LBT gap(在上行子帧中预留的用于LBT的时间间隔，是用于确定上行传输起始位置的相关信息)以及LBT channel access priority(LBT信道接入优先级)。其中，LBT gap有四种配置结果，即25微秒(us)、25us+TA(Timing Advance(时间提前量))，符号1和符号0(即无LBT gap)；LBT type有两种配置结果，即相关技术中one shot LBT(25us)和LBT CAT-4两种；LBT信道接入优先级有4种配置结果，即优先级1-4。需要说明的是只有当LBT type为LBT CAT-4时，才会需要优先级。
当LBT type为LBT CAT-4时，由于Msg3仅占用1个子帧，其LBT CAT-4的信道接入优先级只为1种，例如优先级1。如果使用二级制的机器语言表示 所有LBT type、LBT gap以及LBT channel access priority时，则会有如表一所示的几种排列组合结果。
表一
Figure PCTCN2017097760-appb-000001
从表一中看出，本示例中只存在000-100这5种情况，因此二进制只占用3个bit即可表示LBT配置信息所有可能(其中101-111为多余的，可预留表示其他含义)。
进一步地，对于LBT type为LBT CAT-4时，其调度的Msg3应位于eNB的TxOP(传输时机)之外，可能不需要支持多用户间的时分复用，因此可以在标准中规定较少的LBT gap选项(例如仅支持一种LBT gap配置，具体可以为无LBT gap)，即可以从调度的上行子帧(UL subframe)的第一个符号(symbol0)开始发送，对应的二进制编码如表二所示。
表二
Figure PCTCN2017097760-appb-000002
在实际应用中，当终端进入随机接入请求时，向网络侧设备发送MSG1，网络侧设备根据MSG1，向终端发送携带LBT配置信息的MSG2，使得终端在发送MSG3前，即可根据MSG2的LBT配置信息，执行LBT操作流程。
方式二
在方式二中，通过系统广播消息和MSG2这两种消息，将LBT配置信息发送至终端。假设LBT配置信息的配置因子还是包括LBT gap、LBT type以及LBT信道接入优先级。LBT gap有四种配置结果，即配置1-配置4；LBT type有两种配置结果，即LBT Cat-4和One shot LBT；LBT信道接入优先级有4种，即优先级1-4。
假设本方式二将本小区支持的两种LBT gap配置封装在系统广播消息中发送至终端，将具体的LBT gap的配置(系统广播消息中的两种配置的其中一种)，LBT type以及LBT信道接入优先级封装在MSG2发送至终端。那么MSG2的UL GRANT中只需使用二进制表示LBT gap为配置1或配置2，LBT type以及LBT信道接入优先级即可，对应内容如表三所示。
表三
Figure PCTCN2017097760-appb-000003
从表三中看出，本实施例中只存在00-11这4种情况，因此二进制只占用MSG2的2个bit。
在实际应用中，一方面，网络侧设备周期性发送携带有部分LBT配置信息的系统广播消息，终端在接收后获取LBT配置信息。另一方面，当终端进入随机接入请求时，向网络侧设备发送MSG1，网络侧设备根据MSG1，向终端发送携带另一部分的LBT配置信息的MSG2，使得终端在发送MSG3前，即可根据系统广播消息以及MSG2中的LBT配置信息，执行LBT操作流程。
显然，基于本方式二的原理，通过系统广播消息以及MSG2分时向终端发送LBT配置信息，可以降低LBT相关信息的开销。同时，将LBT配置信息的配置因子、设置配置因子所对应的配置结果灵活分配在系统广播消息以及MSG2中，可精确控制MSG2的字节长度，使本方案的MSG2与相关技术的MSG2长度一致。
方式三
假设本方式三在方式二的基础之上进一步在MSG2的UL GRANT内容中额外表示调度方式选项(scheduling option)的内容。
其中，当指示为scheduling option 2时，Msg3应该位于eNB的传输机会(TxOP)之内，因此其LBT type只能为one-shot LBT(25us)。对应的二级制编码如表四所示。
表四
Figure PCTCN2017097760-appb-000004
从表四中看出，本方式只存在000-111这8种情况，因此二进制只占用3个bit即可表示LBT配置信息的所有可能。
显然，本方式四中，scheduling option仅作为示例性介绍，用于表示本公开采用二进制不仅可以表示LBT配置信息，还可以进一步表示UL GRANT其他配置信息。
方式四
假设本方式四只通过系统广播消息将LBT配置信息全部发送至终端。在实际应用中，网络侧设备周期性发送携带有全部LBT配置信息的系统广播消息，终端在接收后，即可执行LBT操作流程。
作为介绍，本方式四可以在系统广播消息的参数SIB-MF/SIBx(x为正整数)中指示的LBT配的配置参数，由于系统广播消息在相关技术中本身就是 通知作用，因此本文不再进行举例赘述。
以上是对本公开的应用于网络侧设备的LBT执行方法的介绍。需要注意的是，上述方式中，除了采用的二级制语言表示MSG2的配置因子外，还可以采用其他机器语言进行表示，如十进制。此外本实施例也并不具体限定LBT的配置因子以及配置因子所对应的配置结果。
此外，本公开的方案中，为了不增加MSG2占用字节的长度。实施例还可以对相关MSG2中一些其他内容进行改动。例如相关技术中，MSG2的资源分配方式一般可以使用10个bit、6个bit以及4个bit进行表示。为了让MSG2与传到大小一致，本公开可以让MSG2的资源分配方式使用6个bit或者4个bit进行表示，从而空出一定bit用于表示LBT配置信息。
对应地，本公开还提供一种应用于终端侧的先听后发LBT执行方法。如图2所示，该方法包括步骤S21至步骤S22。
步骤S21：获取由网络侧设备发送的携带有LBT配置信息的通知消息。
作为示例性介绍，本实施例在步骤S21中，可以从网络侧设备发送的系统广播消息和随机接入第二消息MSG2中的至少一个中，获取LBT配置信息。
步骤S22：若终端未建立无线资源控制RRC连接，则根据该通知消息中的LBT配置信息，执行LBT操作流程。
显然，本实施例的应用于终端侧的LBT执行方法与网络侧设备的LBT执行方法相对应，因此基于网络侧设备的LBT执行方法，本实施例的终端侧的LBT执行方法也能够实现相同的有益效果。
对应地，在本实施例中，LBT配置信息包括多个配置因子，每一个配置因子具有至少一个配置结果。
若至少从网络侧设备发送的MSG2中获取LBT配置信息，则LBT配置信息封装在MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果中的组合结果。
在实际应用中，LBT配置信息的配置因子以及对应配置结果都是既定的，假设只从网络侧设备发送的MSG2中获取LBT的全部配置信息，则终端是能够直接确定出MSG2中配置信息中有哪些配置因子以及对应的配置结果的，因此对应机器语言表示几种组合结果的含义也是确定的，只需要直接读取即 可。
若终端从系统广播消息中获取LBT配置信息的一部分配置因子，并从MSG2中获取另一部分配置因子，假设网络侧设备可以灵活地将LBT配置信息分配到系统广播消息以及MSG2中，终端是无法直接确定出MSG2中的机器语言是表示哪几种配置因子的，因此在具体的从MSG2获取LBT配置信息步骤中，终端先从系统广播消息中获取所述LBT配置信息的一部分配置因子，并根据该从系统广播消息中获取到的配置因子，确定出需要从所述MSG2中获取的其余的配置因子。
在终端确定出MSG2中有哪些LBT配置信息的配置因子后，则可以确定出机器语言的读取方式，并根据该读取方式将MSG2中机器语言转换对应的配置因子的信息。
作为进一步示例性介绍，假设LBT配置信息的配置因子包括A、B、C、D这四种。若全部由MSG2来发送，则终端只需要保存有一种机器语言的读取方式即可。
若网络侧设备以动态方式将配置因子A、B、C、D随机分配到系统广播消息以及MSG2中，假设配置因子A由系统广播消息负责发送，配置因子B、C、D由MSG2负责发送。终端开始是不知道MSG2中携带了哪些配置因子的，因此无法从MSG2的机器语言中，确定具体表示的含义。当终端接收到系统广播消息，从而确定出系统广播消息携带有配置因子A后，可确定出MSG2中所携带配置因子为B、C、D。之后根据预先保存的对应MSG2中的配置因子为B、C、D时的读取方式，将MSG2中的机器语言转换成具体配置信息，从而完整LBT的操作流程。
此外，本公开的另一实施例还提供一种网络侧设备3。如图3所示，该网络侧设备3包括发送器31、存储器32以及处理器33。存储器32存储有软件程序，处理器通过运行该软件程序，以通知发送器31向终端发送一携带有LBT配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据通知消息中的LBT配置信息，执行LBT操作流程。
本实施例的网络侧设备利用通知消息将LBT配置信息发送至终端，从而让终端在未建立RRC连接下，也能够完成LBT的相关流程，进而保证终端 在随机接入过程中，能够成功发送MSG3。
具体地，本实施例的LBT配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
作为示例性介绍，LBT配置信息至少包括以下配置因子：网络侧设备支持的LBT类型、LBT上行传输起止位置以及LBT优先级。
其中，若通过MSG2，将LBT配置信息发送至终端，则LBT配置信息封装在MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以二进制表示配置因子在对应的配置结果时的组合结果。
具体地，若通过系统广播消息和MSG2，将LBT配置信息发送至终端，则本实施例的处理器33通过运行软件程序，控制发送器31将LBT配置信息中的一部分配置因子通过系统广播消息发送至终端，并将LBT配置信息中的另一部分配置因子通过MSG2发送至终端。
本公开的实施例还提供一种网络侧设备6。如图6所示，该网络侧设备6包括发送模块61。发送模块61用于向终端发送一携带有LBT配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据通知消息中的LBT配置信息，执行LBT操作流程。
具体地，本实施例的LBT配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。LBT配置信息至少包括以下配置因子：网络侧设备支持的LBT类型、LBT上行传输起止位置以及LBT优先级。若通过MSG2将LBT配置信息发送至终端，则LBT配置信息封装在MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以二进制表示配置因子在对应的配置结果时的组合结果。
具体地，若通过系统广播消息和MSG2将LBT的配置信息发送至终端，则发送模块61将LBT的配置信息中的一部分配置因子通过系统广播消息发送至终端，并将LBT的配置信息中的另一部分配置因子通过MSG2发送至终端。
显然，本实施例的网络侧设备与本公开提供的网络侧设备的LBT执行方法相对应，因此能够实现相同的技术效果。
此外，本公开的另一实施例还提供一种终端4。如图4所示，终端4包 括接收器41、存储器42、执行器43以及处理器44。存储器42存储有软件程序，处理器44通过运行该软件程序，以：控制接收器41获取由网络侧设备发送的携带有LBT配置信息的通知消息；若终端未建立无线资源控制RRC连接，则进一步控制执行器43根据该通知消息中的LBT配置信息，执行LBT操作流程。
显然，本实施例的终端与本公开提供的网络侧设备相对应，因此基于该网络侧设备，本实施例的终端能够实现与该网络侧设备相同的技术效果。
具体地，本实施例的LBT配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
若上述接收器41至少从网络侧设备发送的MSG2中，获取LBT配置信息，则LBT配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果时的组合结果。
具体地，若通过系统广播消息以及MSG2，获取LBT配置信息，则处理器44根据软件程序控接收器41从系统广播消息中获取所述LBT配置信息的一部分配置因子，并从MSG2中获取LBT配置信息的另一部分配置因子。
具体地，在处理器44控制下，接收器41获取配置因子的流程如下：从系统广播消息中获取LBT配置信息的一部分配置因子，并根据从系统广播消息中获取到的配置因子，确定出需要从MSG2中获取的其余的配置因子；从MSG2中获取对应的LBT配置信息的机器语言，根据确定到的需要从MSG2中获取的其余的配置因子，确定出该机器语言读取方式，并根据确定出的读取方式将获取到的机器语言转换对应的配置因子。
本公开的实施例还提供一种终端7。如图7所示，终端7包括获取模块71、判断模块72和执行模块73。获取模块71用于获取由网络侧设备发送的携带有LBT配置信息的通知消息。判断模块72用于判断终端7是否建立无线资源控制RRC连接。执行模块73用于在终端7未建立无线资源控制RRC连接的情况下，根据该通知消息中的LBT配置信息，执行LBT操作流程。具体地，本实施例的LBT配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
若获取模块71至少从网络侧设备发送的MSG2中获取LBT配置信息，则LBT配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果时的组合结果。具体地，若通过系统广播消息以及MSG2，获取LBT配置信息，则获取模块71从系统广播消息中获取所述LBT配置信息的一部分配置因子，并从MSG2中获取LBT配置信息的另一部分配置因子。具体地，获取模块71获取配置因子的流程如下：从系统广播消息中获取LBT配置信息的一部分配置因子，并根据从系统广播消息中获取到的配置因子，确定出需要从MSG2中获取的其余的配置因子；从MSG2中获取对应的LBT配置信息的机器语言，根据确定到的需要从MSG2中获取的其余的配置因子，确定出该机器语言读取方式，并根据确定出的读取方式将获取到的机器语言转换对应的配置因子。
显然，本实施例的终端与本公开提供的应用于终端侧的LBT执行方法相对应，因此能够实现相同的技术效果。
此外，本公开还提供一种通信系统5，包括上述网络侧设备3以及上述终端4。显然，本公开的通信系统利用系统广播消息和随机接入第二消息MSG2中的至少一个将LBT配置信息发送至终端，从而让终端在未建立RRC连接下，也能够完成LBT的相关流程，进而保证终端在随机接入过程中，能够成功发送MSG3。
此外，本公开还提供一种通信系统8，包括上述网络侧设备6和上述终端7。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相 关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (28)

  1. 一种应用于网络侧设备的信道接入执行方法，包括：
    向终端发送一携带有信道接入配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据所述通知消息中的信道接入配置信息，执行信道接入操作流程。
  2. 根据权利要求1所述的信道接入执行方法，其中，向终端发送一携带有信道接入配置信息的通知消息，包括：
    通过系统广播消息和随机接入第二消息MSG2中的至少一个，将信道接入配置信息发送至终端。
  3. 根据权利要求2所述的信道接入执行方法，其中，
    所述信道接入的配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
  4. 根据权利要求3所述的信道接入执行方法，其中，所述信道接入配置信息至少包括以下配置因子：
    所述网络侧设备支持的信道接入类型、上行传输起止位置以及信道接入优先级。
  5. 根据权利要求3所述的信道接入执行方法，其中，
    若通过MSG2将所述信道接入配置信息发送至终端，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以二进制表示配置因子在对应的配置结果中的组合结果。
  6. 根据权利要求5所述的信道接入执行方法，其中，
    若通过系统广播消息和MSG2，将所述信道接入配置信息发送至终端，则所述信道接入配置信息中的一部分配置因子通过所述系统广播消息发送至终端，另一部分配置因子通过MSG2发送至终端。
  7. 一种应用于终端的信道接入执行方法，包括：
    获取由网络侧设备发送的携带有信道接入配置信息的通知消息；
    若所述终端未建立无线资源控制RRC连接，则根据该通知消息中的信道接入配置信息，执行信道接入操作流程。
  8. 根据权利要求7所述的信道接入执行方法，其中，获取由网络侧设备发送的携带有信道接入配置信息的通知消息，包括：
    通过从网络侧设备发送的系统广播消息和随机接入第二消息MSG2中的至少一个中，获取所述信道接入配置信息。
  9. 根据权利要求8所述的信道接入执行方法，其中，
    所述信道接入配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
    若至少从所述网络侧设备发送的MSG2中获取信道接入配置信息，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果中的组合结果。
  10. 根据权利要求9所述的信道接入执行方法，其中，若通过所述系统广播消息以及所述MSG2中获取所述信道接入配置信息，则从所述系统广播消息中获取所述信道接入配置信息的一部分配置因子，并从所述MSG2中获取另一部分配置因子。
  11. 根据权利要求10所述的信道接入执行方法，其中，从所述系统广播消息中获取所述信道接入配置信息的一部分配置因子，并从所述MSG2中获取另一部分配置因子，包括：
    从所述系统广播消息中获取所述信道接入配置信息的一部分配置因子，并根据该从所述系统广播消息中获取到的配置因子，确定出需要从所述MSG2中获取的其余的配置因子；
    从MSG2中获取对应的信道接入配置信息的机器语言，根据确定到的需要从所述MSG2中获取的其余的配置因子，确定出该机器语言读取方式，并根据该读取方式将所述机器语言转换对应的配置因子。
  12. 一种网络侧设备，包括：
    存储器，所述存储器存储有软件程序，
    发送器，以及，
    处理器，所述处理器通过运行所述软件程序以控制所述发送器执行根据权利要求1-6中任一项所述的信道接入执行方法。
  13. 一种终端，包括：接收器、存储器、执行器以及处理器；
    存储器，所述存储器存储有软件程序，
    接收器，
    执行器，以及
    处理器，所述处理器通过运行所述软件程序以：
    控制所述接收器获取由网络侧设备发送的携带有信道接入配置信息的通知消息；
    若所述终端未建立无线资源控制RRC连接，则控制执行器根据该通知消息中的信道接入配置信息，执行信道接入操作流程。
  14. 根据权利要求13所述的终端，其中，
    所述处理器通过运行所述软件程序，控制所述接收器通过从网络侧设备发送的系统广播消息和随机接入第二消息MSG2中的至少一个中，获取所述信道接入配置信息。
  15. 根据权利要求14所述的终端，其中，
    所述信道接入配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
    若至少从网络侧设备发送的MSG2中获取所述信道接入配置信息，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果中的组合结果。
  16. 根据权利要求15所述的终端，其中，
    若从所述系统广播消息以及所述MSG2中获取所述信道接入配置信息，则所述处理器通过运行所述软件程序，控制所述接收器从所述系统广播消息中获取所述信道接入配置信息中的一部分配置因子，并从所述MSG2中获取所述信道接入配置信息中的另一部分配置因子。
  17. 根据权利要求16所述的终端，其中，所述处理器通过运行所述软件程序，控制所述接收器从所述MSG2中获取所述LBT的配置信息中的另一部分配置因子，包括：
    从所述系统广播消息中获取所述信道接入配置信息的一部分配置因子， 并根据该从所述系统广播消息中获取到的配置因子，确定出需要从所述MSG2中获取的其余的配置因子；
    从MSG2中获取对应的信道接入配置信息的机器语言，根据确定到的需要从所述MSG2中获取的其余的配置因子，确定出该机器语言读取方式，并根据该读取方式将所述机器语言转换对应的配置因子。
  18. 一种网络侧设备，包括：
    发送模块，用于向终端发送一携带有信道接入配置信息的通知消息，使得未建立无线资源控制RRC连接的终端能够根据通知消息中的所述信道接入配置信息，执行信道接入操作流程。
  19. 根据权利要求18所述的网络侧设备，其中，所述发送模块通过系统广播消息和随机接入第二消息MSG2中的至少一个，将所述信道接入配置信息发送至所述终端。
  20. 根据权利要求19所述的网络侧设备，其中，
    所述信道接入配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
  21. 根据权利要求20所述的网络侧设备，其中，所述信道接入配置信息至少包括以下配置因子：
    所述网络侧设备支持的信道接入类型、上行传输起止位置以及信道接入优先级。
  22. 根据权利要求19所述的网络侧设备，其中，
    若通过MSG2，将所述信道接入配置信息发送至终端，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权ULGRANT的内容中，并以二进制表示配置因子在对应的配置结果中的组合结果。
  23. 根据权利要求22所述的网络侧设备，其中，
    若通过系统广播消息和MSG2，将所述信道接入配置信息发送至终端，则所述发送模块将所述信道接入配置信息中的一部分配置因子通过系统广播消息发送至所述终端，并将所述信道接入配置信息中的另一部分配置因子通过MSG2发送至上述终端。
  24. 一种终端，包括：
    获取模块，用于获取由网络侧设备发送的携带有所述信道接入配置信息的通知消息；
    判断模块，用于判断上述终端是否建立无线资源控制RRC连接；以及
    执行模块，用于在终端未建立无线资源控制RRC连接的情况下，根据该通知消息中的所述信道接入配置信息，执行信道接入操作流程。
  25. 根据权利要求24所述的终端，其中，
    所述获取模块通过从网络侧设备发送的系统广播消息和随机接入第二消息MSG2中的至少一个中，获取所述信道接入配置信息。
  26. 根据权利要求25所述的终端，其中，
    所述信道接入配置信息包括多个配置因子，每一个配置因子具有至少一个的配置结果。
    若至少从网络侧设备发送的MSG2中获取所述信道接入配置信息，则所述信道接入配置信息封装在所述MSG2的随机接入响应RAR的上行调度授权UL GRANT的内容中，并以机器语言表示配置因子在对应的配置结果中的组合结果。
  27. 根据权利要求26所述的终端，其中，
    若从所述系统广播消息以及所述MSG2中获取所述信道接入配置信息，则所述获取模块从所述系统广播消息中获取所述信道接入配置信息中的一部分配置因子，并从所述MSG2中获取所述信道接入配置信息中的另一部分配置因子。
  28. 根据权利要求27所述的终端，其中，所述获取模块从所述MSG2中获取所述信道接入配置信息中的另一部分配置因子，包括：
    所述获取模块从所述系统广播消息中获取所述信道接入配置信息的一部分配置因子，并根据该从所述系统广播消息中获取到的配置因子，确定出需要从所述MSG2中获取的其余的配置因子；
    从MSG2中获取对应的所述信道接入配置信息的机器语言，根据确定到的需要从所述MSG2中获取的其余的配置因子，确定出该机器语言读取方式，并根据该读取方式将所述机器语言转换对应的配置因子。
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