WO2019024735A1 - 媒体接入控制层的重置方法和装置 - Google Patents

媒体接入控制层的重置方法和装置 Download PDF

Info

Publication number
WO2019024735A1
WO2019024735A1 PCT/CN2018/097011 CN2018097011W WO2019024735A1 WO 2019024735 A1 WO2019024735 A1 WO 2019024735A1 CN 2018097011 W CN2018097011 W CN 2018097011W WO 2019024735 A1 WO2019024735 A1 WO 2019024735A1
Authority
WO
WIPO (PCT)
Prior art keywords
system information
mac layer
random access
reset
timer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/097011
Other languages
English (en)
French (fr)
Inventor
张崇铭
刘仁茂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to IL272261A priority Critical patent/IL272261B2/en
Priority to EP18842274.5A priority patent/EP3664511B1/en
Priority to CA3071169A priority patent/CA3071169A1/en
Priority to US16/632,828 priority patent/US11224092B2/en
Priority to KR1020207005483A priority patent/KR20200037302A/ko
Priority to RU2020108630A priority patent/RU2770891C2/ru
Priority to AU2018311884A priority patent/AU2018311884B2/en
Publication of WO2019024735A1 publication Critical patent/WO2019024735A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present invention relates to the field of wireless communication technologies, and more particularly, to a method and apparatus for resetting a medium access control layer.
  • the research topic of the new 5G wireless access technology was proposed at the 3rd Generation Partnership Project (3GPP) RAN#64 plenary meeting held in March 2016 (see Non-Patent Document: RP-160671 New SID Proposal: Study on New Radio Access Technology).
  • 3GPP 3rd Generation Partnership Project
  • RAN#64 plenary meeting held in March 2016 see Non-Patent Document: RP-160671 New SID Proposal: Study on New Radio Access Technology.
  • the working frequency band of the new communication system can be extended to 100 GHz, and at the same time, it will meet at least the demand for enhanced mobile broadband services, the communication requirements of massive IoT terminals, and the business requirements for high reliability requirements.
  • the research work of the project will end in 2018.
  • the UE can obtain the required system information by means of the request.
  • the requesting process may be that the UE sends a preamble to the network side (for example, a base station or other network side device that can be used to send system information), and after receiving the preamble sequence, the network side sends the preamble on the predetermined time-frequency resource.
  • System information corresponding to the preamble sequence In order to send a preamble sequence related to the system information request to the network side, a random access procedure is triggered at the MAC layer. Due to the instability of the wireless link environment, if the network side does not receive the response, the UE will repeatedly send the preamble sequence until the maximum number of transmissions is reached or exceeded. When this happens, how to make the UE correctly acquire the system information becomes a problem.
  • the present disclosure provides a method, apparatus, and computer readable storage medium for resetting a medium access control (MAC) layer at a user equipment (UE).
  • MAC medium access control
  • a method for resetting a Medium Access Control (MAC) layer at a User Equipment (UE) includes: transmitting, by a random access procedure, a system information request message for requesting system information to a network side; and resetting the MAC layer when the system information request fails.
  • MAC Medium Access Control
  • UE User Equipment
  • resetting the MAC layer when the system information request fails may include resetting the MAC layer if a response to the system information request message on the network side is not received within a predetermined time period. In other examples, resetting the MAC layer when the system information request fails may include resetting the MAC layer if a random access problem occurs during the random access procedure.
  • the method may further include directly resetting the MAC layer if the UE has undergone cell reselection during the predetermined time period.
  • the method may further include: if the UE has performed cell reselection during the predetermined time period, determining whether the reselected cell is a cell that is inaccessible or forbidden to access; When the selected cell is a cell that cannot be accessed or forbidden, the MAC layer is reset.
  • the predetermined time period can begin at one of the following:
  • the MAC layer When the MAC layer indicates to the radio resource control RRC layer that the system information is acquired.
  • whether the predetermined time period is enabled may be determined according to a state in which the UE is located.
  • the enabling of the predetermined time period may also be based on a type of the system information request message.
  • resetting the MAC layer can include at least one of the following:
  • the method may further include: suspending the predetermined time period and stopping the request for the system information when the system information required to be acquired belongs to information of lower importance; and in the second predetermined time period After that, the request for the system information is restarted.
  • the system information request message is message three in a Long Term Evolution, LTE, Random Access procedure.
  • the method may further include: upon receiving an acknowledgment of the system information from the network side, or receiving an indication from the network side to delay transmission/prohibition of transmitting the system information request message and the indication And including, when the information related to the length of the delayed transmission/prohibition transmission is delayed, the predetermined time period is suspended, and the request for the system information is stopped; and the third predetermined time corresponding to the information related to the duration of the delayed transmission/prohibition transmission After the segment, the request for the system information is restarted.
  • an apparatus for resetting a Medium Access Control (MAC) layer at a User Equipment (UE) includes a system information request module and a MAC layer reset module.
  • the system information requesting module is configured to send, by using a random access procedure, a system information request message for requesting system information to the network side.
  • the MAC layer reset module is configured to reset the MAC layer when the system information request fails.
  • an apparatus for resetting a medium access control MAC layer at a user equipment UE including a memory and a processor, is provided.
  • the memory stores computer executable instructions.
  • the processor executes the computer executable instructions stored by the memory to perform the methods described above.
  • a computer readable storage medium having stored thereon executable instructions that, when executed by a processor, cause a processor to perform the method described above.
  • FIG. 1 shows a simplified flow chart of a method for processing the above problem in accordance with an embodiment of the present invention
  • FIG. 2 shows a schematic block diagram of an apparatus for resetting a Medium Access Control (MAC) layer at a User Equipment (UE), in accordance with an embodiment of the present invention
  • MAC Medium Access Control
  • UE User Equipment
  • FIG. 3 shows a schematic block diagram of a network side device according to an embodiment of the present invention.
  • the present invention is not limited to the following embodiments, but can be applied to more other wireless communication systems, such as a future 5G cellular communication system, and can be applied to other network side devices and terminal devices, for example, support.
  • Network side devices and terminal devices such as eMTC and MMTC.
  • RRC Radio Resource Control refers to radio resource control
  • Random Access Preamble Identifier Random Access Preamble Identifier
  • the UE In the LTE mobile communication system, there are two ways for the UE to acquire system information.
  • the network side e.g., base station
  • the UE receives the broadcasted system information to acquire the content of the system information.
  • system information is obtained on an on-demand basis.
  • the so-called on-demand mode means that the UE sends a system information request message requesting acquisition of system information to the base station/network.
  • the system information request message may specifically include a specific preamble sequence, a preamble sequence corresponding to a specific system information type, or an RRC message.
  • the network side/base station After receiving the request message, the network side/base station transmits the system information by means of broadcast at a specific time, and the UE receives the broadcasted system information at a corresponding time to acquire the content of the system information. Therefore, the system information acquired by the on-demand method can also be referred to as on-demand system information.
  • a random access procedure is required, which may be based on message one or message three.
  • the UE triggers a random access procedure, and sends a preamble sequence to the network side/base station, where the preamble sequence may correspond to system information that one or more UEs need to acquire, or one or multiple UEs.
  • the SIB that needs to be obtained.
  • the network side/base station receives the request, and if the resource permits, the RAPID of the preamble sequence is carried in the replied random access response (RAR), indicating that the UE has confirmed the system information request. After receiving the RAPID in the RAR, the UE can consider that the random access is successfully completed and receive the system information in the corresponding system information window.
  • RAR replied random access response
  • the UE may also trigger a random access procedure to send a preamble sequence to the network side/base station.
  • the network side/base station allocates a UL grant to the UE for resolving the contention conflict.
  • the difference from the case of the message 1 is that the UE sends the message 3, that is, the message carrying the requested message type.
  • the network side/base station can confirm the system information request of the UE in the message 4. At this time, the UE may consider that the random access is successfully completed, and may receive the system information in the corresponding system information window.
  • FIG. 1 shows a simplified flow chart of a method for processing the above problem in accordance with an embodiment of the present invention. This method solves the problem of system information request loss by resetting the MAC layer.
  • the method includes an operation S110, and a system information request message for requesting system information is sent to a network side through a random access procedure.
  • the system information request message can be transmitted in the manner described above.
  • the MAC layer is reset when the system information request fails.
  • resetting the MAC layer when the system information request fails may include resetting the MAC layer if a response from the network side for the system information request message is not received within a predetermined time period.
  • the foregoing predetermined time period may be implemented by using a timer, for example, by using a timer of the RRC layer. When the timer starts, the time period starts. When the timer expires, the time period ends, and when the timer stops, the time period is aborted.
  • resetting the MAC layer when the system information request fails may include resetting the MAC layer if a random access problem occurs during the random access procedure.
  • a random access problem can refer to any problem that causes the random access procedure to fail.
  • the method may further include directly resetting the MAC layer if the UE has performed cell reselection during the predetermined time period.
  • the MAC layer is reset.
  • the predetermined time period begins at one of the following times (ie, the corresponding timer is started at one of the following times):
  • the MAC layer When the MAC layer indicates to the RRC layer that system information is acquired.
  • a higher layer generally refers to an RRC layer
  • a lower layer generally refers to a MAC layer, unless otherwise specified.
  • whether to enable a predetermined time period may depend on the state in which the UE is currently located. For example, the predetermined time period is enabled when the UE is in an idle state or an inactive state, and is not enabled when the UE is in a connected state, or vice versa.
  • the activation of the predetermined time period may also be based on the type of system information request message. For example, if the system information request message is message one, the predetermined time period can be enabled, and if the system information request message is message three, the predetermined time period is not enabled, and vice versa.
  • resetting the MAC layer includes at least one of the following operations:
  • the method illustrated in FIG. 1 may further include aborting the predetermined time period and stopping the request for system information when the system information required to be acquired belongs to less important information.
  • the method can also include requesting to restart system information after a second predetermined period of time.
  • the second predetermined time period herein may be implemented by, but not limited to, by a timer (second timer).
  • the system information request message described above is message three in a Long Term Evolution (LTE) random access procedure.
  • the method shown in FIG. 1 may further include: receiving an acknowledgment of the system information request from the network side, or receiving an indication of delaying transmission/prohibition of transmitting the system information request message from the network side and When the indication includes information related to the length of the delayed transmission/prohibition transmission, the predetermined time period is suspended, and the request for system information is stopped.
  • the method may also include a request to restart the system information after a third predetermined period of time corresponding to information related to the length of the delayed transmission/inhibition transmission.
  • the third predetermined time period herein may be implemented by, but not limited to, by a timer (third timer). I won't go into details here.
  • the UE may start the first timer.
  • the system information may be on-demand system information, and the on-demand system information refers to system information that needs to be acquired by an on-demand method.
  • the timer may be a timer managed by the RRC layer. The duration setting of the timer can be broadcast by the network side in the system information. The UE may configure the first timer according to the received duration of the timer.
  • the MAC layer When the first timer expires, the MAC layer is reset. In case the timer is managed by the RRC layer, the MAC layer reset may be indicated by the RRC layer.
  • the behavior performed by the UE after determining that the system information acquisition fails includes the reset MAC layer.
  • Embodiment 1 cell reselection can occur during the operation of the first timer.
  • the UE stops the first timer when cell reselection occurs during the first timer operation.
  • the MAC layer can be directly reset while or after the first timer is stopped.
  • the behavior performed by the UE when the first timer is stopped may also include at least resetting the MAC layer, that is, stopping the first timer may indirectly reset the MAC layer.
  • the behavior or operation performed by the UE herein may also include, but is not limited to, indicating to the application layer or the non-access stratum of the UE or notifying that the acquisition of system information fails.
  • the application layer or non-access stratum disables or deactivates or disables one or more UE functions based on the notification or indication, and the activation of these functions may be based on system information that needs to be acquired. Failure to obtain system information causes the UE not to enable this feature.
  • the UE may stop the first timer when the reselected/selected cell is determined/recognized as being inaccessible or barred during operation of the first timer.
  • the “non-accessible” or “prohibited access” may be defined in the art, and details are not described herein.
  • the MAC layer can be directly reset while or after the first timer is stopped.
  • the MAC layer may also be included in the behavior performed by the UE when the first timer is stopped, that is, stopping the first timer may indirectly reset the MAC layer.
  • the selected cell may be a cell in which the UE currently camps, a cell from which the UE acquires system information, or a cell that provides required system information to the UE.
  • the process of the selected cell being determined to be inaccessible may include, during the process of acquiring system information from the selected cell (eg, may be acquired in an on-demand manner), or during operation of the first timer, Upon receiving the random access problem indication, the UE may determine that the cell is inaccessible.
  • the indication may be an indication that the lower layer is sent to the upper layer, for example, an indication sent from the MAC layer to the RRC layer, but is not limited thereto, and may be any lower layer that is sent to the upper layer in the OSI structure to indicate a random access problem. Instructions.
  • the UE may also determine the reset of the MAC layer according to the type of system information to be acquired. For example, when the system information to be acquired belongs to an important or essential information, in the process of acquiring system information, or during the operation of the first timer, if a random access problem is received ( The random access problem indicates that the current cell can be determined to be inaccessible, thereby stopping the first timer and resetting the MAC layer.
  • the random access problem indicates that the current cell can be determined to be inaccessible, thereby stopping the first timer and resetting the MAC layer.
  • the system information that needs to be acquired is of secondary importance, or is not non-essential information, in the process of acquiring the system information, if the random access problem indication is received, the first The timer starts the second timer.
  • the acquisition process of the system information is not started (for example, the system information request message is not transmitted).
  • the UE may restart the process of acquiring system information (for example, the process described in Embodiment 2), for example, starting the first timer again, and resetting the MAC layer, for example, when the first timer expires. .
  • the first timer is stopped when the information that the requested system information is acknowledged is received.
  • the information that the received system information is acknowledged may be that the MAC layer indicates that the requested system information is confirmed to the upper layer (for example, the RRC layer), or that the preamble sent by the MAC layer to the upper layer indicates that the preamble is confirmed in the RAR.
  • the MAC layer feeds back the RAPID to the upper layer (for example, the RAPID may be received in the RAR), or the MAC determines that the random access procedure is successfully completed.
  • the first timer may also be stopped upon receipt of system information.
  • the system information herein may be the requested system information (eg, system information requested in an on-demand manner). In either case, optionally, the MAC layer can also be reset to refresh the MAC.
  • the “when the UE acquires system information” described in the foregoing embodiment may specifically refer to the following timing for starting the first timer:
  • system information eg, system information acquired in an on-demand manner
  • the UE may further determine whether to start the first timer according to the state of the UE, on the premise that any of the start timings of the first timer is met, or before determining whether the start timings are met. That is, it is determined whether or not the above-described predetermined time period is enabled according to the state in which the UE is located. For example, when the UE is in an idle state (RRC_IDLE or Idle mdoe) or an inactive state (RRC_INACTIVE or Inactive mode), the first timer may be started; and when the UE is in a connected state (RRC_ACTIVE or RRC_CONNECTED, or Connected mode), Start the first timer, or vice versa.
  • RRC_IDLE or Idle mdoe an inactive state
  • RRC_INACTIVE or Inactive mode the first timer may be started; and when the UE is in a connected state (RRC_ACTIVE or RRC_CONNECTED, or Connected mode
  • the first timer when the UE acquires system information, and when the UE is in an idle state or an inactive state, the first timer may be started;
  • the first timer when triggering the sending of the on-demand system information request, and when the UE is in the idle state or the inactive state, the first timer is started;
  • the UE when the UE indicates the transmission of the preamble sequence to the lower layer, and when the UE is in the idle state or the inactive state, the first timer is started.
  • the UE may further determine whether to start the first timer according to the manner in which the system information is acquired (for example, the type of the system information request message), for example, when the message-based manner is adopted, the UE may be started.
  • the first timer when using the Message 3 based approach, the first timer may not be started, and vice versa.
  • the MAC layer may be reset;
  • the behavior performed by the UE may include resetting the MAC layer
  • the UE may reset the MAC layer.
  • the reset MAC layer may be included in the behavior performed by the UE at the time of claiming or judging that the system information acquisition fails.
  • the receiving system information timeout mentioned herein may refer to that the system information has not been correctly received after passing through multiple system information windows (the system information or the scheduling of the system information is included in the system information window), or is predefined
  • the system information has not been correctly received after the number of system information windows, or the system information has not been correctly received within a certain time window.
  • the counter can be counted down, for example, by receiving a system information window, and the value of the counter is decremented by one.
  • the receiving system information has timed out.
  • the predefined number described herein or the specific time window and the counter related value may be notified by the system information broadcast to the UE or the dedicated signaling to the UE.
  • the reset MAC layer described in the foregoing embodiment may include, but is not limited to, one or more of the following operations:
  • the MAC layer may also be indicated/notified by internal signaling.
  • the information about the random access resource may be indicated/notified by the signaling, or may be indicated/notified to the MAC layer by the upper layer (for example, the RRC layer), and may be indicated/notified by internal signaling.
  • the cache can be a HARQ cache, or a cache of preamble sequences, or a cache of messages three;
  • partial reset MAC layer When only some of the above operations are included, it may be referred to as a partial reset MAC layer.
  • the MAC layer can perform partial resets using only a few of the operations/behavior described above.
  • the MAC layer may further determine the cause of the reset, for example, according to the type of the transmission preamble sequence, whether it is a reset due to the failure of the system information acquisition.
  • the reset may be indicated when the upper layer indicates the reset, that is, the reset may be caused by the failure of the system information acquisition, that is, the upper layer may indicate that the MAC execution cause is a reset of the system information acquisition failure, and the MAC performs the corresponding Reset behavior.
  • the MAC layer can also perform a reset action based on the reason for triggering random access. Specifically, for example, random access may be triggered due to acquiring system information, and when the MAC receives the reset indication, a corresponding reset action is performed.
  • the delayed transmission may be indicated to the upper layer (for example, the RRC layer).
  • the upper layer indicates information related to the duration of delayed transmission/prohibition transmission.
  • the MAC layer may also be included in the behavior performed by the UE when the first timer is stopped, that is, stopping the first timer may indirectly reset the MAC layer.
  • the UE may optionally start a third timer, where the duration of the third timer may be configured according to the information about the duration of the delayed transmission/inhibition transmission, or according to the content broadcasted in the system information, and The acquisition of system information is stopped during the start of the third timer (for example, the system information request message is not transmitted).
  • the UE may restart the process of acquiring system information (for example, the process described in Embodiment 2), for example, starting the first timer again, and resetting the MAC layer, for example, when the first timer expires. .
  • system information for example, the process described in Embodiment 2
  • resetting the MAC layer for example, when the first timer expires.
  • the third timer and the second timer may be the same or different, for example, the duration of their setting may be different.
  • the duration of the second timer may be broadcast as X
  • the duration of the third timer may be broadcast as Y.
  • the Y value may also be delayed transmission/disable transmission indicated by the network side/base station. The length of time related information is known.
  • the same timer can be used to implement the third timer and the second timer, for example, through different parameter settings.
  • the duration of the timer may be set to the duration X of the second timer, and the timer is started;
  • the duration of the timer may be set to the duration Y of the third timer.
  • FIG. 2 illustrates an apparatus for resetting a Medium Access Control (MAC) layer at a User Equipment (UE), in accordance with an embodiment of the present invention.
  • This device corresponds to the method of the above embodiment (especially embodiment 1).
  • the apparatus includes a system information requesting module 210 and a MAC layer resetting module 220.
  • the system information requesting module 210 is configured to send, by using a random access procedure, a system information request message for requesting system information to the network side.
  • the MAC layer reset module 220 is configured to reset the MAC layer when the system information request fails.
  • the MAC layer reset module 220 can be further configured to reset the MAC layer if a response to the system information request message on the network side is not received within a predetermined time period.
  • the foregoing predetermined time period may be implemented by using a timer, for example, by using a timer of the RRC layer. When the timer starts, the time period starts. When the timer expires, the time period ends, and when the timer stops, the time period is aborted.
  • the MAC layer reset module 220 can also be configured to reset the MAC layer if a random access problem occurs during the random access procedure.
  • the random access problem may refer to any problem that causes the random access procedure to fail.
  • the MAC layer reset module 220 can be further configured to directly reset the MAC layer if the UE has undergone cell reselection during a predetermined time period.
  • the apparatus shown in FIG. 2 may further include a cell type determining module 230 for determining whether the reselected cell is a cell that is not accessible or forbidden when a cell reselection occurs during a predetermined time period.
  • the MAC layer reset module 220 can also be used to reset the MAC layer when the reselected cell is a cell that is inaccessible or forbidden to access.
  • the predetermined time period begins at one of the following times (ie, the corresponding timer is started at one of the following times):
  • the MAC layer When the MAC layer indicates to the RRC layer that system information is acquired.
  • whether to enable a predetermined time period may depend on the state in which the UE is currently located.
  • the apparatus shown in FIG. 2 may further include a device status determination module 240 for determining the current state of the UE.
  • the predetermined time period may be enabled in the MAC layer reset module 220 when the UE is in the idle state or the inactive state, and may not be enabled in the MAC layer reset module 220 when the UE is in the connected state, or vice versa .
  • the activation of the predetermined time period may also be based on the type of system information request message. For example, if the system information request message is message one, the predetermined time period may be enabled in the MAC layer reset module 220, and if the system information request message is the message three, the predetermined time period may not be enabled in the MAC layer reset module 220. ,vice versa.
  • MAC layer reset module 220 can perform at least one of the following operations:
  • the MAC layer reset module 220 When the MAC layer reset module 220 performs only some of the above operations, it may be referred to as the MAC layer reset module 220 performing a partial reset MAC layer operation.
  • the apparatus shown in FIG. 2 may also include an information importance determination module 250 for determining the importance of the system information that is required to be acquired.
  • the predetermined time period may be suspended at the MAC layer reset module 220, and the request for system information is stopped in the system information requesting module 210. And after the second predetermined period of time, the system information requesting module 210 restarts the request for system information.
  • the second predetermined time period herein may be implemented by, but not limited to, by a timer (second timer).
  • the system information request message described above is message three in a Long Term Evolution (LTE) random access procedure.
  • the apparatus shown in FIG. 2 may include an information analysis module 260 for determining whether an acknowledgment of the system information request is received from the network side or an indication of delaying transmission/prohibition of transmitting the system information request message is received from the network side.
  • the indication may include information related to the length of the delayed transmission/prohibition transmission.
  • the MAC layer reset module 220 may suspend the predetermined time period and The system information requesting module 210 stops the request for system information.
  • the method may also include restarting the request for system information in the system information requesting module 210 after a third predetermined period of time corresponding to information related to the length of the delayed transmission/disabling transmission.
  • the third predetermined time period herein may be implemented by, but not limited to, by a timer (third timer). I will not repeat them here.
  • FIG. 3 shows a schematic block diagram of a network side device according to an embodiment of the present invention.
  • the network side device (for example, a base station) includes a receiving module 310, a processing module 320, and a sending module 330.
  • the receiving module 310 is configured to receive a system information request message from the user equipment.
  • the processing module 320 is configured to process the received system information request message and generate a corresponding response message.
  • the sending module 330 is configured to send the generated response message.
  • the generated response message may include, for example, system information requested by the user equipment.
  • the network side device shown in FIG. 3 may further include a storage module 340 for storing various information required for network side operations, such as system information requested by each user equipment or any other information.
  • the information stored by the storage module 340 can include information related to the delayed transmission/inhibition transmission system information request message and its duration.
  • the processing module 320 can generate an indication of the delayed transmission/inhibition transmission system information request message based on the information, and the indication is sent by the transmitting module 330, and the indication can include information related to the duration of the delayed transmission/prohibition transmission.
  • processing module 320 may also generate an acknowledgment of the system information request message based on the received system information request message and send the acknowledgment by transmitting module 330.
  • FIG. 2 or FIG. 3 only show the functions and/or modules required to implement the embodiments of the present invention.
  • any other required means may also be added, such as a display, a memory, a user access interface, etc., and embodiments of the present invention are not subject to a specific apparatus.
  • the specific structure and form of the device may not be in the device shown in FIG. 3, but in a remote device that is remote from the device shown in FIG. 3 and communicatively connected to the device, or the data stored therein is distributed.
  • the device shown in Figure 3 is communicatively connected to a plurality of different devices.
  • the program running on the device according to the present invention may be a program that causes a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory system.
  • a program for realizing the functions of the embodiments of the present invention can be recorded on a computer readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • the "computer readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuitry e.g., monolithic or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit.
  • One or more embodiments of the present invention may also be implemented using these new integrated circuit technologies in the context of new integrated circuit technologies that replace existing integrated circuits due to advances in semiconductor technology.
  • the present invention is not limited to the above embodiment. Although various examples of the embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office equipment, vending machines, and other home appliances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

本公开提供了一种在用户设备(UE)处用于重置媒体接入控制(MAC)层的方法。该方法包括通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息；以及在系统信息请求失败时，重置所述MAC层。本公开实施例还提供了对应的装置。

Description

媒体接入控制层的重置方法和装置 技术领域
本发明涉及无线通信技术领域，更具体地，本发明涉及媒体接入控制层的重置方法和装置。
背景技术
随着移动通信的快速增长和技术的巨大进步，世界将走向一个完全互联互通的网络社会，即任何人或任何东西在任何时间和任何地方都可以获得信息和共享数据。预计到2020年，互联设备的数量将达到500亿部，其中仅有100亿部左右可能是手机和平板电脑，其它的则不是与人对话的机器，而是彼此对话的机器。因此，如何设计系统以更好地支持万物互联是一项需要深入研究的课题。
为此，在2016年3月举行的第三代合作伙伴计划(3GPP)RAN#64次全会上，提出了新5G无线接入技术的研究课题(参见非专利文献：RP-160671 New SID Proposal：Study on New Radio Access Technology)。在该工作项目的描述中，未来新的通信制式的工作频段可扩展至100GHz，同时将至少满足增强的移动宽带业务需求、海量物联网终端的通信需求，以及高可靠性要求的业务需求等，该项目研究工作将于2018年结束。
在5G系统中，UE可以通过请求的方式获得所需要的系统信息。请求的过程可以是UE向网络侧(例如，基站或其他可用于发送系统信息的网 络侧设备)发送前导序列(preamble)，网络侧收到该前导序列后，在预定的时频资源上发送与该前导序列对应的系统信息。为了向网络侧发送和系统信息请求相关的前导序列，将在MAC层触发随机接入过程。由于无线链路环境的不稳定，如果没有收到网络侧的响应，UE将重复发送前导序列，直到达到或超过最大发送次数，当出现这种情况，如何使得UE正确获取系统信息将成为问题。
发明内容
有鉴于此，本公开提供了一种在用户设备(UE)处用于重置媒体接入控制(MAC)层的方法、装置和计算机可读存储介质。
根据本发明实施例的一方面，提供了一种在用户设备(UE)处用于重置媒体接入控制(MAC)层的方法。该方法包括：通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息；以及在系统信息请求失败时，重置所述MAC层。
在一些示例中，在系统信息请求失败时重置所述MAC层可包括：如果在预定时间段内没有接收到网络侧的针对所述系统信息请求消息的响应，重置所述MAC层。在另一些示例中，在系统信息请求失败时重置所述MAC层可包括：如果在所述随机接入过程中发生随机接入问题，重置所述MAC层。
在一些示例中，该方法还可包括：如果所述UE在所述预定时间段期间发生了小区重选，则直接重置所述MAC层。
在一些示例中，该方法还可包括：如果所述UE在所述预定时间段期 间发生了小区重选，判断被重选的小区是否是不可接入或禁止接入的小区；以及在被重选的小区是不可接入或禁止接入的小区时，重置所述MAC层。
在一些示例中，所述预定时间段可从以下时刻之一处开始：
在触发发送所述系统信息请求消息时；
在发送用于请求系统信息的前导序列时；
在触发下层初始化随机接入过程时；
在触发下层初始化前导序列传输过程时；
向下层指示发送前导序列时；或者
在所述MAC层向无线电资源控制RRC层指示获取所述系统信息时。
在一些示例中，可根据UE所处的状态来判断是否启用所述预定时间段。
在一些示例中，所述预定时间段的启用还可基于所述系统信息请求消息的类型。
在一些示例中，重置所述MAC层可包括以下各项中的至少一项：
丢弃与所述随机接入过程中发送的前导序列相关的信息；
丢弃与所述随机接入过程使用的随机接入资源相关的信息；
清空所述UE的缓存；
停止所有在MAC层运行的定时器；
停止所有正在进行的随机接入过程；或者
释放所述UE的网络标识及其相关的信息。
在一些示例中，该方法还可包括：当所需获取的系统信息属于重要性较低的信息时，中止所述预定时间段，并停止所述系统信息的请求；以及 在第二预定时间段之后，重新启动所述系统信息的请求。
在一些示例中，所述系统信息请求消息是长期演进LTE随机接入过程中的消息三。该方法还可包括：在没有从所述网络侧接收到对所述系统信息的确认时，或者在从所述网络侧接收到延迟发送/禁止发送所述系统信息请求消息的指示且所述指示包括与延迟发送/禁止发送的时长相关的信息时，中止所述预定时间段，并停止所述系统信息的请求；以及在对应于与延迟发送/禁止发送的时长相关的信息的第三预定时间段之后，重新启动所述系统信息的请求。
根据本发明实施例的另一方面，提供了一种在用户设备(UE)处用于重置媒体接入控制(MAC)层的装置。该装置包括系统信息请求模块和MAC层重置模块。系统信息请求模块用于通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息。MAC层重置模块用于在系统信息请求失败时，重置所述MAC层。
根据本发明实施例的另一方面，提供了一种在用户设备UE处用于重置媒体接入控制MAC层的装置，包括存储器和处理器。存储器存储计算机可执行指令。处理器执行所述存储器存储的计算机可执行指令，以执行上述的方法。
根据本发明实施例的另一方面，提供了一种计算机可读存储介质，其上存储有可执行指令，该指令被处理器执行时使处理器执行上述的方法。
附图说明
通过下面结合附图对本公开实施例进行的详细描述，将使本公开的上 述特征和优点更加明显，其中：
图1示出了根据本发明实施例的用于处理上述问题的方法的简要流程图；
图2示出了根据本发明的实施例的在用户设备(UE)处用于重置媒体接入控制(MAC)层的装置的示意性框图；以及
图3示出了根据本发明的实施例的网络侧设备的示意性框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以LTE移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施方式。然而，需要指出的是，本发明不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统，而且可以适用于其他网络侧设备和终端设备，例如支持eMTC、MMTC等的网络侧设备和终端设备。
在具体描述之前，先对本发明中提到的若干术语做如下说明。除非另有指出，本发明中涉及的术语都具有下文的含义。
UE User Equipment 用户设备/终端设备
MAC Medium Access Control 媒体接入控制
RRC Radio Resource Control 是指无线资源控制
Preamble 前导序列
SIB System Information Block 系统信息块
SI System Information 系统信息
RAPID Random Access Preamble Identifier 随机接入前导序列标识
C-RNTI Cell Radio Network Temporary Identifier 小区无线网络临时标识
在LTE移动通信系统中，UE获取系统信息的方式有两种。在第一种方式中，网络侧(例如基站)广播系统信息，UE接收被广播的系统信息从而获取系统信息的内容。在第二种方式中，通过按需(on-demand)的方式来获取系统信息。所谓on-demand的方式是指UE向基站/网络发送请求获取系统信息的系统信息请求消息，系统信息请求消息具体可以包括特定的前导序列、对应特定系统信息类型的前导序列、或者是RRC消息。网络侧/基站收到该请求消息后，在特定时刻，通过广播的方式发送该系统信息，UE在对应的时刻接收被广播的系统信息从而获取系统信息的内容。因此采用on-demand方式获取的系统信息也可以被称为是on-demand系统信息。
在on-demand方式中，无论是发送前导序列还是RRC消息，都需要随机接入过程，具体可以基于消息一或者基于消息三。
在基于消息一的系统信息获取过程中，UE触发随机接入过程，向网络侧/基站发送前导序列，该前导序列可以对应一个或者多个UE需要获取的系统信息，或者对应一个或对个UE需要获取的SIB。网络侧/基站收到该请求，如果资源许可，则会在回复的随机接入响应(RAR)中携带该前 导序列的RAPID，表示确认了UE了系统信息请求。UE在RAR中收到RAPID后，可以认为随机接入成功完成，并在相应的系统信息窗中接收系统信息。
在基于消息三的系统信息的获取过程中，UE也可以触发随机接入过程，向网络侧/基站发送前导序列。与消息一的情况不同的是，在回复的RAR中，网络侧/基站给UE分配UL grant以用于解决竞争冲突。与消息一的情况不同之处还在于，UE发送消息三，即携带请求的消息类型的消息，网络侧/基站收到该请求后，可以在消息四中对UE的系统信息请求进行确认。此时，UE可以认为随机接入成功完成，并可以在相应的系统信息窗中接收系统信息。
在上述随机接入过程中，由于无线链路环境的不稳定，如果没有收到网络侧的响应，UE将重复发送前导序列，直到达到或超过最大发送次数，当出现这种情况，如何使得UE正确获取系统信息将成为问题。
为解决该问题做出了以下实施例。下面将详细描述本发明的若干实施例。
实施例1
图1示出了根据本发明实施例的用于处理上述问题的方法的简要流程图。该方法通过重置MAC层来解决了系统信息请求失的问题。
如图1所示，该方法包括操作S110，通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息。例如可采用如上所述的方式来发送系统信息请求消息。
在操作S120中，在系统信息请求失败时重置MAC层。
在一些示例中，在系统信息请求失败时重置MAC层可以包括：如果在预定时间段内没有接收到网络侧的针对该系统信息请求消息的响应，则重置MAC层。可选地，上述的预定时间段可采用定时器来实现，例如采用RRC层的定时器来实现。当定时器启动时，该时间段开始，定时器超时时，该时间段结束，且定时器停止时，该时间段中止。
在一些示例中，在系统信息请求失败时重置MAC层可包括如果在随机接入过程中发生随机接入问题则重置MAC层。随机接入问题可指代导致随机接入过程失败的任何问题。
在一些示例中，该方法还可包括：如果UE在预定时间段期间发生了小区重选，则直接重置所述MAC层。然而在另一些示例中，可存在不同的处理方式，例如如果UE在预定时间段期间发生了小区重选，判断被重选的小区是否是不可接入或禁止接入的小区，且在被重选的小区是不可接入或禁止接入的小区时，重置MAC层。
在一些示例中，预定时间段从以下时刻之一处开始(亦即，对应定时器在以下时刻之一处启动)：
在触发发送系统信息请求消息时；
在发送用于请求系统信息的前导序列时；
在触发下层初始化随机接入过程时；
在触发下层初始化前导序列传输过程时；
向下层指示发送前导序列时；或者
在MAC层向RRC层指示获取系统信息时。
在本公开的实施例中，在没有特别说明的情况下，上层(higher layer)通常指的是RRC层，下层(lower layer)通常指的是MAC层。
在一些示例中，是否启用预定时间段(例如，是否启动对应定时器)可取决于UE当前所处的状态。例如，当UE处于空闲态或非激活态时启用预定时间段，而当UE处于连接态时不启用所述预定时间段，或反之亦然。
在一些示例中，预定时间段的启用还可基于系统信息请求消息的类型。例如，如果系统信息请求消息是消息一，则可启用预定时间段，而如果系统信息请求消息是消息三，则不启用预定时间段，反之亦然。
在一些示例中，重置MAC层包括以下各项操作中的至少一项：
丢弃与随机接入过程中发送的前导序列相关的信息；
丢弃与随机接入过程使用的随机接入资源相关的信息；
清空UE的缓存；
停止所有在MAC层运行的定时器；
停止所有正在进行的随机接入过程；或者
释放UE的网络标识及其相关的信息。
在一些示例中，图1所示的方法还可包括：当所需获取的系统信息属于重要性较低的信息时，中止预定时间段，并停止对系统信息的请求。该方法还可包括在第二预定时间段之后，重新启动系统信息的请求。同样地，这里的第二预定时间段可通过但不限于由定时器(第二定时器)来实现。
在一些示例中，上述系统信息请求消息是长期演进(LTE)随机接入过程中的消息三。在此情况下，图1所示的方法还可包括：在没有从网络侧接收到对系统信息请求的确认时，或者在从网络侧接收到延迟发送/禁止 发送系统信息请求消息的指示且所述指示包括与延迟发送/禁止发送的时长相关的信息时，中止预定时间段，并停止系统信息的请求。该方法还可包括在对应于与延迟发送/禁止发送的时长相关的信息的第三预定时间段之后，重新启动系统信息的请求。同样地，这里的第三预定时间段可通过但不限于由定时器(第三定时器)来实现。在此不再赘述
将参考以下具体实施例的描述对上述方案进行更详细的描述。在下面的具体实施例描述中，主要基于定时器来进行描述，但需要理解的是，也可以使用任何其他的方式来实现上述的预定时间段，而不限于定时器。
实施例2
当UE获取系统信息时，UE可以启动第一定时器。可选地，该系统信息可以是on-demand系统信息，所述on-demand系统信息是指需要通过on-demand方式获取的系统信息。可选地，该定时器可以是RRC层管理的定时器。该定时器的时长设置可以由网络侧在系统信息中广播。UE可以根据收到的该定时器的时长来配置该第一定时器。
当第一定时器超时时，重置MAC层。在定时器由RRC层管理的情况下，可以由RRC层指示MAC层重置。
当第一定时器超时时，可判断系统信息获取失败，且更具体地，可以判断on-demand系统信息获取失败。在这种情况下，在判断系统信息获取失败后UE执行的行为中包含重置MAC层。
实施例3：
本实施例与实施例1的区别在于，当第一定时器运行期间，可发生小区重选。在本实施例中，当在第一定时器运行期间发生小区重选时，UE停止第一定时器。在停止第一定时器的同时或者之后，可以直接重置MAC层。在一些示例中，也可以在第一定时器停止时UE执行的行为中至少包含重置MAC层，即停止第一定时器可以间接地重置MAC层。此处所说的UE执行的行为或操作还可包括但不限于向UE的应用层或非接入层指示或者通知获取系统信息失败。该应用层或非接入层基于该通知或者指示，去使能或者去激活或者不启用一项或者多项UE功能，这些功能的启用可以是基于所需要获取的系统信息。系统信息的获取失败导致UE不启用该功能。
在一些示例中，当第一定时器运行期间，所重选/选择的小区被判定为/被认为不可接入或者是禁止接入(barred)时，则UE可停止第一定时器。此外所述的“不可接入”或“禁止接入”可采用本领域中常用的定义，在此不再赘述。同样地，在停止第一定时器的同时或者之后，可以直接重置MAC层。在一些示例中，也可以在第一定时器停止时UE执行的行为中包含重置MAC层，即停止第一定时器可以间接地重置MAC层。
所选择的小区可以是UE当前驻留的小区，也可以是UE从其获取系统信息的小区，或者是向UE提供所需系统信息的小区等。所选择的小区被判定为不可接入的过程可包括，UE在从所选择的小区获取系统信息(例如可采用on-demand的方式来获取)的过程中，或者在第一定时器运行期间，接收到了随机接入问题(random access problem)指示，则UE可判定该小区为不可接入。上述指示可以是下层(lower layer)向上层发送的指 示，例如从MAC层向RRC层发送的指示，但不限于此，也可以是OSI结构中的任何下层向上层发送的指示随机接入问题的指示。
此外，UE还可以根据所要获取的系统信息的类型来确定MAC层的重置。例如，当所要获取的系统信息属于重要的，或者是不可或缺的(essential)信息时，则在获取系统信息的过程中，或者是第一定时器运行期间，如果接收到了随机接入问题(random access problem)指示，可判定当前小区为不可接入，从而停止第一定时器，并重置MAC层。而当所需要获取的系统信息属于次重要的，或者不是不可或缺的(non-essential)信息时，在获取该系统信息的过程中，如果收到了随机接入问题指示，则还可以停止第一定时器并启动第二定时器。在第二定时器运行期间，不启动系统信息的获取流程(例如，不发送系统信息请求消息)。当第二定时器超时时，UE可以重新启动获取系统信息的流程(例如实施例2所述的流程)，例如再次启动第一定时器，且例如在第一定时器超时时，重置MAC层。
在一些示例中，还可以是当收到所请求的系统信息被确认的信息时，停止第一定时器。所述收到所请求的系统信息被确认的信息可以是MAC层向上层(例如，RRC层)指示所请求的系统信息被确认，或者是MAC层向上层指示发送的preamble在RAR中被确认，或者是MAC层向上层反馈RAPID(例如，该RAPID可以是在RAR中收到的)，或者是MAC判断随机接入过程成功完成等。在一些示例中，还可以在收到系统信息时停止第一定时器。这里的系统信息可以是所请求的系统信息(例如用on-demand方式请求的系统信息)。在这两种情况下，可选地，也可以重置 MAC层，以对MAC进行刷新。
实施例4
上述实施例中所述的“当UE获取系统信息时”可具体指的是以下用于启动第一定时器的时机：
-在触发发送系统信息(例如，以on-demand方式获取的系统信息)请求消息时；
-在发送用于请求系统信息的前导序列时；
-在触发下层初始化随机接入过程时；
-在触发下层初始化前导序列传输过程时；
-向下层指示发送前导序列时；或者
-在MAC层向RRC层指示获取系统信息时。
在上述第一定时器的任一启动时机得以满足的前提下，或者是在判断这些启动时机是否满足之前，可选地，UE还可以根据UE所处的状态来判断是否启动第一定时器，即，根据UE所处的状态来判断是否启用上述的预定时间段。例如，当UE处于空闲态(RRC_IDLE或者Idle mdoe)或者非激活态(RRC_INACTIVE或者Inactive mode)时，可以启动第一定时器；而当UE处于连接态(RRC_ACTIVE或者RRC_CONNECTED，或者Connected mode)时，不启动第一定时器，或反之亦然。
例如，当UE获取系统信息时，且当UE处于空闲态或者非激活态时，可启动第一定时器；
例如，当触发发送on-demand系统信息请求时，且当UE处于空闲态 或者非激活态时，启动第一定时器；
例如，当UE向下层(lower layer)指示前导序列的传输时，且当UE处于空闲态或者非激活态时，启动第一定时器。
此外，在一些示例中，UE还可以根据采用的系统信息获取的方式(例如系统信息请求消息的类型)来判断是否启动第一定时器，例如，当采用基于消息一的方式时，可以启动第一定时器；当采用基于消息三的方式时，可以不启动第一定时器，反之亦然。
实施例5
上述实施例中通过定时器的超时或者停止来重置MAC层可存在不同的表述方式。本实施例提供了这些表述方式中的一些，需要注意的是，其他技术实质相同但表述方式不同的表述也是可能的。
例如，当UE获取系统信息时，当UE采用on-demand方式获取系统信息，或者UE获取on-demand系统信息的过程中，当收到随机接入问题指示，可重置MAC层；
例如，当由系统信息获取触发的随机接入过程中，出现了随机接入问题，UE执行的行为中可包含重置MAC层；
例如，在UE获取系统信息的过程中，在UE采用on-demand方式获取系统信息，或者UE获取on-demand系统信息的过程中，发生了小区重选，则UE可重置MAC层
例如，在UE获取系统信息的过程中，在UE采用on-demand方式获取系统信息，或者UE获取on-demand系统信息的过程中，当收到随机接 入问题指示或者接收系统信息超时，则宣称系统信息获取失败，或者是判断系统信息获取失败。在宣称/判断系统信息获取失败之时或者之后UE执行的行为中可包含重置MAC层。这里所述接收系统信息超时，可以是指经过多个系统信息窗后还未正确接收到该系统信息(该系统信息或者该系统信息的调度包含在该系统信息窗中)，或者是在预定义个数的系统信息窗之后还未正确接收到该系统信息，或者是在特定时间窗内未能正确接收到该系统信息。还可以使用计数器，该计数器统计接收的系统信息窗的个数，当计数器累加达到或者超过最大允许的个数时还未正确接收到该系统信息则确定接收系统信息超时。该计数器可以采用倒计数的方式，例如接收一个系统信息窗，计数器的值减一，如果直至计数器数值为0时还未正确接收到该系统信息则确定接收系统信息超时。这里所述的预定义个数或者是特定时间窗以及计数器相关的值可以由系统信息广播通知UE或者专有信令通知UE。
实施例6
上述实施例中所述的重置MAC层，可以包含但不限于如下操作中的一项或多项：
-丢弃与随机接入过程中发送的前导序列相关的信息，例如前导序列，或者前导序列序号，这里和前导序列相关的信息可以是由信令指示/通知的，还可以是上层(例如RRC层)指示/通知给MAC层的，也可以是通过内部信令来指示/通知。
-丢弃与随机接入过程使用的随机接入资源相关的信息，例如用于本 次随机接入的RACH时频资源，或者是资源序号等。这里和随机接入资源的相关信息可以是由信令指示/通知的，还可以是上层(例如RRC层)指示/通知给MAC层的，可以是通过内部信令来指示/通知。
-清空UE的缓存，此处的缓存可以是HARQ的缓存，或者存放前导序列的缓存，或者是消息三的缓存；
-停止所有在运行的定时器，例如所有在MAC层运行的定时器；
-停止所有正在进行的随机接入过程；
-释放UE的网络标识及其相关的信息，例如临时小区无线网络临时标识(Temporary C-RNTI)。
当仅包含上述操作中的一些时，可称为部分重置MAC层。MAC层可以仅采用上述的若干操作/行为来进行部分重置。
在一些示例中，当MAC层收到上层指示重置时，MAC层可以进一步判断导致重置的原因，例如根据发送前导序列的类型，判断是否是由于系统信息获取失败导致重置。在一些示例中，可以在上层指示重置的同时，还指示了是由于系统信息获取失败而导致的重置，即，上层可以指示MAC执行原因是系统信息获取失败的重置，且MAC执行对应的重置行为。
MAC层还可以根据触发随机接入的原因来执行重置行为。具体地，例如可以由于获取系统信息而触发随机接入，当MAC收到重置指示时，执行对应的重置行为。
实施例7
在基于消息三的获取系统信息的过程中，当竞争冲突得以解决但是 UE没有从网络侧(例如在消息四中)接收到对其请求系统信息的确认时，或者当UE从网络侧(例如在消息四中)接收到延迟发送/禁止发送系统信息请求的指示且该指示包括与延迟发送/禁止发送的时长相关的信息时，则可以向上层(upper layer)(例如RRC层)指示延迟发送，或者向上层指示延迟发送/禁止发送的时长相关的信息。上层收到该指示后可以停止第一定时器，并重置MAC层。在一些示例中，也可以在第一定时器停止时UE执行的行为中包含重置MAC层，即停止第一定时器可以间接地重置MAC层。UE可以可选地启动第三定时器，其中，第三定时器的时长可以根据所指示的延迟发送/禁止发送的时长相关的信息来进行配置，或者根据系统信息中广播的内容进行配置，并在第三定时器启动期间停止系统信息的获取(例如，不发送系统信息请求消息)。当第三定时器超时时，UE可以重新启动获取系统信息的流程(例如实施例2所述的流程)，例如再次启动第一定时器，且例如在第一定时器超时时，重置MAC层。
特别地，第三定时器和第二定时器可以相同，也可以不同，例如，其设置的时长可以不同。可例如在系统信息中可以广播第二定时器的时长为X，还可以广播第三定时器的时长为Y，可选地，Y值也可以是从网络侧/基站指示的延迟发送/禁止发送的时长相关的信息中获知。
可使用同一定时器来例如通过不同的参数设置实现第三定时器和第二定时器。例如，当出现实施例3中的情况，即针对不重要的信息收到了随机接入问题指示时，则可将该定时器的时长设置为第二定时器的时长X，并启动该定时器；而当出现实施例6中的情况，即收到了网络侧/基站指示的延迟发送/禁止发送请求时，则可将该定时器的时长设置为第三定时器的 时长Y。
实施例8
图2示出了根据本发明的实施例的在用户设备(UE)处用于重置媒体接入控制(MAC)层的装置。该装置与上述实施例(特别是实施例1)的方法相对应。
如图2所示，该装置包括系统信息请求模块210和MAC层重置模块220。系统信息请求模块210用于通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息。MAC层重置模块220用于在系统信息请求失败时时重置MAC层。
在一些示例中，MAC层重置模块220还可用于：如果在预定时间段内没有接收到网络侧的针对该系统信息请求消息的响应，则重置MAC层。可选地，上述的预定时间段可采用定时器来实现，例如采用RRC层的定时器来实现。当定时器启动时，该时间段开始，定时器超时时，该时间段结束，且定时器停止时，该时间段中止。
在一些示例中，MAC层重置模块220还可用于：如果在随机接入过程中发生随机接入问题，重置MAC层。在此，如上所述，随机接入问题可以指代导致随机接入过程失败的任何问题。
在一些示例中，MAC层重置模块220还可用于：如果UE在预定时间段期间发生了小区重选，则直接重置所述MAC层。然而在另一些示例中，可存在不同的处理方式。例如图2所示的装置还可包括小区类型确定模块230，用于在预定时间段期间发生了小区重选时，判断被重选的小区是否是不可 接入或禁止接入的小区。在此情况下，MAC层重置模块220还可用于在被重选的小区是不可接入或禁止接入的小区时重置MAC层。
在一些示例中，预定时间段从以下时刻之一处开始(亦即，对应定时器在以下时刻之一处启动)：
在触发发送系统信息请求消息时；
在发送用于请求系统信息的前导序列时；
在触发下层初始化随机接入过程时；
在触发下层初始化前导序列传输过程时；
向下层指示发送前导序列时；或者
在MAC层向RRC层指示获取系统信息时。
在一些示例中，是否启用预定时间段(例如，是否启动对应定时器)可取决于UE当前所处的状态。例如，图2所示的装置还可包括设备状态确定模块240，用于确定UE当前所处的状态。当UE处于空闲态或非激活态时可在MAC层重置模块220中启用预定时间段，而当UE处于连接态时可在MAC层重置模块220中不启用预定时间段，或反之亦然。
在一些示例中，预定时间段的启用还可基于系统信息请求消息的类型。例如，如果系统信息请求消息是消息一，则在MAC层重置模块220中可启用预定时间段，而如果系统信息请求消息是消息三，则在MAC层重置模块220中可不启用预定时间段，反之亦然。
在一些示例中，MAC层重置模块220可执行以下各项操作中的至少一项：
丢弃与随机接入过程中发送的前导序列相关的信息；
丢弃与随机接入过程使用的随机接入资源相关的信息；
清空UE的缓存；
停止所有在MAC层运行的定时器；
停止所有正在进行的随机接入过程；或者
释放UE的网络标识及其相关的信息。
当MAC层重置模块220仅执行上述操作中的一些时，可称为MAC层重置模块220执行部分重置MAC层操作。
在一些示例中，图2所示的装置还可包括信息重要性确定模块250，用于确定所需获取的系统信息的重要性。当确定所需获取的系统信息属于重要性较低的信息时，可在MAC层重置模块220中止预定时间段，并在系统信息请求模块210中停止对系统信息的请求。而在第二预定时间段之后，系统信息请求模块210重新启动对系统信息的请求。同样地，这里的第二预定时间段可通过但不限于由定时器(第二定时器)来实现。
在一些示例中，上述系统信息请求消息是长期演进(LTE)随机接入过程中的消息三。在此情况下，图2所示的装置可包括信息分析模块260，用于确定是否从网络侧接收到对系统信息请求的确认或者从网络侧接收到延迟发送/禁止发送系统信息请求消息的指示，所述指示可包括与延迟发送/禁止发送的时长相关的信息。在没有从网络侧接收到对系统信息请求的确认时，或者在从网络侧接收到延迟发送/禁止发送系统信息请求消息的指示时，可在MAC层重置模块220中止预定时间段，并在系统信息请求模块210中停止系统信息的请求。该方法还可包括在对应于与延迟发送/禁止发送的时长相关的信息的第三预定时间段之后，在系统信息请求模块210中 重新启动对系统信息的请求。同样地，这里的第三预定时间段可通过但不限于由定时器(第三定时器)来实现。在此不再赘述。
实施例九
图3示出了根据本发明的实施例的网络侧设备的示意性框图。
如图3所示，该网络侧设备(例如基站)包括接收模块310、处理模块320和发送模块330。接收模块310用于接收来自用户设备的系统信息请求消息。处理模块320用于处理接收到的系统信息请求消息，并生成对应的响应消息。发送模块330用于发送所生成的响应消息。例如，所生成的响应消息例如可包括用户设备所请求的系统信息。
图3所示的网络侧设备还可包括存储模块340，用于存储网络侧操作所需的各种信息，例如各个用户设备所请求的系统信息或其他任何信息。
在一些示例中，存储模块340所存储的信息可包括与延迟发送/禁止发送系统信息请求消息及其时长相关的信息。处理模块320可基于该信息来生成延迟发送/禁止发送系统信息请求消息的指示，并由发送模块330发送该指示，该指示可包括与延迟发送/禁止发送的时长相关的信息。
在一些示例中，处理模块320还可基于接收到的系统信息请求消息生成对该系统信息请求消息的确认，并由发送模块330发送该确认。
为了描述的简洁，上述基于图2或图3所述的实施例仅示出了实现本发明实施例所需的功能和/或模块。在具体实现根据图2和图3的实施例所述的装置和设备时，也可以增加其他任何所需的装置，例如显示器、内存、 用户接入接口等等，本发明实施例不受具体装置和设备的具体结构和形式的限制。此外，图3中的存储模块340也可以不在图3所示的设备中，而是在远离图3所示的设备并与该设备通信连接的远程设备中，或者其所存储的数据分布在与图3所示的设备通信连接的多个不同设备中。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器系统中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机系统读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机系统”可以是嵌入在该设备中的计算机系统，可以包括操作系统或硬件(如外围设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状 态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设计改动。另外，可以在权利要求的范围内对本发明进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (9)

  1. 一种在用户设备UE处用于重置媒体接入控制MAC层的方法，包括：
    通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息；以及
    在系统信息请求失败时，重置所述MAC层。
  2. 根据权利要求1所述的方法，其中，在系统信息请求失败时重置所述MAC层包括：
    如果在预定时间段内没有接收到网络侧的针对所述系统信息请求消息的响应，重置所述MAC层；或者
    如果在所述随机接入过程中发生随机接入问题，重置所述MAC层。
  3. 根据权利要求2所述的方法，还包括：
    如果所述UE在所述预定时间段期间发生了小区重选，则直接重置所述MAC层。
  4. 根据权利要求2所述的方法，还包括：
    如果所述UE在所述预定时间段期间发生了小区重选，判断被重选的小区是否是不可接入或禁止接入的小区；
    在被重选的小区是不可接入或禁止接入的小区时，重置所述MAC层。
  5. 根据权利要求2所述的方法，其中，所述预定时间段从以下时刻之一处开始：
    在触发发送所述系统信息请求消息时；
    在发送用于请求系统信息的前导序列时；
    在触发下层初始化随机接入过程时；
    在触发下层初始化前导序列传输过程时；
    向下层指示发送前导序列时；或者
    在所述MAC层向无线电资源控制RRC层指示获取所述系统信息时。
  6. 根据权利要求1所述的方法，其中，重置所述MAC层包括以下各项中的至少一项：
    丢弃与所述随机接入过程中发送的前导序列相关的信息；
    丢弃与所述随机接入过程使用的随机接入资源相关的信息；
    清空所述UE的缓存；
    停止所有在MAC层运行的定时器；
    停止所有正在进行的随机接入过程；或者
    释放所述UE的网络标识及其相关的信息。
  7. 一种在用户设备UE处用于重置媒体接入控制MAC层的装置，包括：
    系统信息请求模块，用于通过随机接入过程向网络侧发送用于请求系统信息的系统信息请求消息；以及
    MAC层重置模块，用于在系统信息请求失败时，重置所述MAC层。
  8. 一种在用户设备UE处用于重置媒体接入控制MAC层的装置，包括：
    存储器，存储计算机可执行指令；以及
    处理器，执行所述存储器存储的计算机可执行指令，以执行根据权利要求1至6中任一项所述的方法。
  9. 一种计算机可读存储介质，其上存储有可执行指令，该指令被处理器执行时使处理器执行根据权利要求1至6中任一项所述的方法。
PCT/CN2018/097011 2017-08-02 2018-07-25 媒体接入控制层的重置方法和装置 Ceased WO2019024735A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IL272261A IL272261B2 (en) 2017-08-02 2018-07-25 Method and apparatus for resetting medium access control layer
EP18842274.5A EP3664511B1 (en) 2017-08-02 2018-07-25 Method and device for resetting media access control layer
CA3071169A CA3071169A1 (en) 2017-08-02 2018-07-25 Method and device for resetting media access control layer
US16/632,828 US11224092B2 (en) 2017-08-02 2018-07-25 Method and apparatus for resetting medium access control layer
KR1020207005483A KR20200037302A (ko) 2017-08-02 2018-07-25 매체 액세스 제어 레이어를 재설정하기 위한 방법 및 디바이스
RU2020108630A RU2770891C2 (ru) 2017-08-02 2018-07-25 Способ и устройство для возврата уровня управления доступом к среде в исходное состояние
AU2018311884A AU2018311884B2 (en) 2017-08-02 2018-07-25 Method and device for resetting media access control layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710655146.3A CN109392049A (zh) 2017-08-02 2017-08-02 媒体接入控制层的重置方法和装置
CN201710655146.3 2017-08-02

Publications (1)

Publication Number Publication Date
WO2019024735A1 true WO2019024735A1 (zh) 2019-02-07

Family

ID=65233390

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/097011 Ceased WO2019024735A1 (zh) 2017-08-02 2018-07-25 媒体接入控制层的重置方法和装置

Country Status (9)

Country Link
US (1) US11224092B2 (zh)
EP (1) EP3664511B1 (zh)
KR (1) KR20200037302A (zh)
CN (2) CN109392049A (zh)
AU (1) AU2018311884B2 (zh)
CA (1) CA3071169A1 (zh)
IL (1) IL272261B2 (zh)
RU (1) RU2770891C2 (zh)
WO (1) WO2019024735A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110035501B (zh) * 2018-01-11 2024-07-16 北京璟石知识产权管理有限公司 通信方法和装置
CN110636578B (zh) 2018-06-21 2023-10-31 中兴通讯股份有限公司 一种请求系统消息的方法、装置、存储介质及终端
CN110913497B (zh) * 2018-09-14 2022-05-24 大唐移动通信设备有限公司 一种信息上报方法、信息获取方法、终端及网络设备
WO2021029810A1 (en) * 2019-08-09 2021-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Methods and procedures for enhanced on-demand delivery of positioning assistance data
EP4206900B1 (en) 2021-01-22 2026-03-04 Samsung Electronics Co., Ltd. Electronic device controlled on basis of sound data, and method for controlling electronic device on basis of sound data
CN116868627A (zh) 2021-01-28 2023-10-10 三星电子株式会社 电子装置和电子装置发送系统信息请求的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070078331A (ko) * 2006-01-26 2007-07-31 삼성전자주식회사 이동통신 시스템에서 스케줄링 정보를 전송하는 방법 및장치
CN201515499U (zh) * 2008-01-04 2010-06-23 交互数字专利控股公司 执行在cell_fach状态中的增强型随机接入过程的wtru
CN102396281A (zh) * 2009-03-05 2012-03-28 华为技术有限公司 一种随机接入过程的处理方法、装置
CN103763074A (zh) * 2008-08-08 2014-04-30 交互数字专利控股公司 Wtru及对其中的mac实体进行重置的方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101115296A (zh) * 2006-09-07 2008-01-30 华为技术有限公司 一种用户接入的方法和系统
EP2658309A3 (en) * 2007-02-02 2014-02-19 InterDigital Technology Corporation Cell update while in an enhanced cell_fach state
CN103260202B (zh) * 2007-04-30 2016-08-17 交互数字技术公司 用于处理小区重选的方法及用户设备
KR101441138B1 (ko) * 2007-09-28 2014-09-18 엘지전자 주식회사 무선통신 시스템에서 상향링크 시간 동기 수행 방법
DK2208383T3 (da) * 2007-10-25 2020-12-14 Signal Trust For Wireless Innovation Fremgangsmåde, indretninger og system til håndtering og opsætning af forbedrede MAC-E/ES-ressourcer
KR101050258B1 (ko) * 2008-03-20 2011-07-19 이노베이티브 소닉 리미티드 Ｒｒｃ 연결 프로시저를 향상시키기 위한 방법 및 장치
CN101600197A (zh) * 2008-06-04 2009-12-09 中兴通讯股份有限公司 临时的小区无线网络临时标识的控制方法和装置
JP6074053B2 (ja) * 2012-10-23 2017-02-01 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおけるバックオフを実行する方法及び装置
CN105723793B (zh) * 2013-02-07 2019-10-18 华为技术有限公司 一种随机接入的方法和装置
US9357460B2 (en) * 2013-03-22 2016-05-31 Sharp Kabushiki Kaisha Systems and methods for establishing multiple radio connections
US9078241B2 (en) * 2013-03-22 2015-07-07 Sharp Kabushiki Kaisha Systems and methods for establishing multiple radio connections
US10187907B2 (en) * 2015-07-05 2019-01-22 Ofinno Technologies, Llc Preamble transmission in a wireless device
EP3379886A1 (en) * 2017-03-20 2018-09-26 ASUSTek Computer Inc. Method and apparatus for random access procedure for system information request in a wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070078331A (ko) * 2006-01-26 2007-07-31 삼성전자주식회사 이동통신 시스템에서 스케줄링 정보를 전송하는 방법 및장치
CN201515499U (zh) * 2008-01-04 2010-06-23 交互数字专利控股公司 执行在cell_fach状态中的增强型随机接入过程的wtru
CN103763074A (zh) * 2008-08-08 2014-04-30 交互数字专利控股公司 Wtru及对其中的mac实体进行重置的方法
CN102396281A (zh) * 2009-03-05 2012-03-28 华为技术有限公司 一种随机接入过程的处理方法、装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3664511A4 *

Also Published As

Publication number Publication date
US20200154513A1 (en) 2020-05-14
EP3664511A1 (en) 2020-06-10
IL272261B2 (en) 2024-10-01
CN109392049A (zh) 2019-02-26
EP3664511A4 (en) 2020-11-25
IL272261A (en) 2020-03-31
RU2020108630A (ru) 2021-09-02
CA3071169A1 (en) 2019-02-07
US11224092B2 (en) 2022-01-11
AU2018311884B2 (en) 2023-01-12
EP3664511B1 (en) 2025-02-19
IL272261B1 (en) 2024-06-01
CN115802435A (zh) 2023-03-14
RU2770891C2 (ru) 2022-04-25
AU2018311884A1 (en) 2020-03-12
RU2020108630A3 (zh) 2021-11-02
KR20200037302A (ko) 2020-04-08

Similar Documents

Publication Publication Date Title
US11558870B2 (en) Method and device for processing carrier activation
WO2019024735A1 (zh) 媒体接入控制层的重置方法和装置
WO2018028683A1 (zh) 执行随机接入的方法、用户设备和基站
WO2018028681A1 (zh) 执行随机接入的方法、用户设备和基站
WO2019179514A1 (zh) 在用户设备上运行的方法及用户设备
US20240080933A1 (en) Data transmission method and user equipment
WO2013020443A1 (zh) 一种在辅小区上随机接入的方法和设备
WO2012040892A1 (zh) 载波聚合系统中载波状态的处理方法和用户设备
CN110351872B (zh) 接入控制方法及用户设备
WO2022022444A1 (zh) 由用户设备执行的方法以及用户设备
KR102812131B1 (ko) 사용자 장비에 의해 구현되는 방법 및 사용자 장비
US12200511B2 (en) Method and apparatus of beam failure recovery executed by user equipment
WO2022078239A1 (zh) 带宽配置方法和用户设备
US11864237B2 (en) User equipment
WO2024017184A1 (zh) 由用户设备执行的方法以及用户设备
JP2023526394A (ja) ランダムアクセス手順のための方法および装置
CN121728602A (zh) 由用户设备执行的方法及用户设备
WO2025232680A1 (zh) 由用户设备执行的方法及用户设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18842274

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3071169

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20207005483

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2018842274

Country of ref document: EP

Effective date: 20200302

ENP Entry into the national phase

Ref document number: 2018311884

Country of ref document: AU

Date of ref document: 20180725

Kind code of ref document: A