WO2012159419A1 - Procédé et dispositif pour la retransmission de message de radiomessagerie plusieurs fois - Google Patents

Procédé et dispositif pour la retransmission de message de radiomessagerie plusieurs fois Download PDF

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Publication number
WO2012159419A1
WO2012159419A1 PCT/CN2011/082089 CN2011082089W WO2012159419A1 WO 2012159419 A1 WO2012159419 A1 WO 2012159419A1 CN 2011082089 W CN2011082089 W CN 2011082089W WO 2012159419 A1 WO2012159419 A1 WO 2012159419A1
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Prior art keywords
retransmission
message
paging
queue
paging message
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PCT/CN2011/082089
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English (en)
Chinese (zh)
Inventor
管福浩
汪奇
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中兴通讯股份有限公司
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Publication of WO2012159419A1 publication Critical patent/WO2012159419A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/04—User notification, e.g. alerting and paging, for incoming communication, change of service or the like multi-step notification using statistical or historical mobility data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1874—Buffer management
    • H04L1/1877—Buffer management for semi-reliable protocols, e.g. for less sensitive applications like streaming video

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for resending a paging message multiple times. Background technique
  • the paging success rate directly affects the user experience and traffic volume, and is an important indicator for measuring network performance. Due to the complexity and time-varying of the wireless environment, it is possible that one or several paging messages are not successfully received by the terminal due to downlink interference, terminal demodulation failure, etc., so it is necessary for the network side to resend the paging message to improve The probability that the terminal receives the paging message, thereby improving the paging success rate.
  • the paging retransmission method there are mainly the following implementation methods.
  • Method 1 The A port resends the paging message.
  • the paging message retransmission interval of the A port is generally set to 6 ⁇ 8 seconds.
  • the disadvantage of this method is that the retransmission interval is large, the paging message has poor timeliness, and the connection delay is large.
  • Method 2 The BTS (Base Transceiver Station) side implements paging message retransmission.
  • the first one is that the number of retransmissions of the paging message is fixed.
  • the disadvantage of this method is that the method is not fully considered.
  • the timeliness of the call message because the immediate assignment message is also sent on the Common Control Channel (CCCH), and generally the priority of the immediately assigned message is higher than the paging message, so when the paging message is heavy
  • the transmission is uncertain, and a fixed number of retransmissions may cause the paging message retransmitted by the air interface to be out of date (maybe the caller has already hanged up).
  • the second method is to increase the priority of the paging message and resend the paging message.
  • the disadvantage of the method is that it affects the timeliness of the immediate assignment of the message, and the terminal is accessed multiple times.
  • the SDCCH (Stand-Alone Dedicated Control Channel, SDCCH) Independent dedicated control channel) assignment failure rate Raise and other issues. Summary of the invention
  • the main object of the present invention is to provide a method and apparatus for resending a paging message multiple times, while ensuring the timeliness of paging messages, and improving the paging success rate without affecting the transmission of other messages on the CCCH.
  • the present invention provides a method for resending a paging message multiple times, including:
  • the immediate assignment message is sent when there is an immediate assignment message, otherwise it is determined whether there is a paging message;
  • the paging message When the paging message is sent, the paging message is sent, and the sent paging message is put into the retransmission queue with the highest priority among the M retransmission queues with the preset maximum number of retransmissions M, and becomes a retransmission message. And setting the number of retransmission attempts of the resend message to 0; otherwise, deleting the retransmission message in the retransmission queue with the number of retransmission attempts equal to M, sending the retransmission queue according to the priority order of the retransmission queue Resend the message internally;
  • the number of retransmission attempts for resending messages in all retransmission queues is incremented by one and returned to determine if there is an immediate assignment message.
  • the method before performing the determining whether there is an immediate assignment message, the method further includes:
  • the paging group number is calculated according to the frame number and the common control parameter, and the CCCH transmission message type of the common control channel is determined.
  • the method before performing the sending the paging message into the retransmission queue with the highest priority among the M retransmission queues with the preset maximum number of retransmissions M, the method further includes:
  • M W/( L*H*BS-PA-MFRMS ) -1 , where W is the paging message retransmission interval, H is the CCCH logical channel multiframe number, L is the frame duration, and BS-PA-MFRMS is the base station.
  • W is the paging message retransmission interval
  • H is the CCCH logical channel multiframe number
  • L is the frame duration
  • BS-PA-MFRMS is the base station.
  • W*K/( L*H*min-BS-PA-MFRMS ) where K is the number of Mobile Identitys included in the Paging request type 3 message.
  • the sending the resend queue resend message according to the priority order of the retransmission queue includes:
  • the retransmission message When the priority of the retransmission queue in which the retransmission message is located is the lowest, the retransmission message is deleted after the retransmission message is sent; otherwise, the retransmission message is placed in a retransmission queue of a lower level.
  • the present invention also provides a device for resending a paging message multiple times, including:
  • a determining module configured to determine whether an immediate assignment message exists
  • a sending module configured to send the immediate assignment message when there is an immediate assignment message, otherwise determine whether there is a paging message; send the paging message when there is a paging message, and put the sent paging message into a preset
  • the retransmission queue with the highest priority among the M retransmission queues with the maximum number of retransmissions is the retransmission message, and the number of retransmission attempts of the retransmission message is set to 0; otherwise, all retransmission queues are retransmitted.
  • a loop module is configured to increment the number of retransmission attempts of resending messages in all retransmission queues by one, and return to determine whether there is an immediate assignment message.
  • the device further includes:
  • a preparation module is configured to calculate a paging group number according to a frame number, a common control parameter, and determine a CCCH transmission message type of the common control channel.
  • the device further includes:
  • the device further includes:
  • the calculation length module is configured to calculate the length of the retransmission queue by the following formula:
  • the sending module is specifically configured to:
  • the retransmission message When the priority of the retransmission queue in which the retransmission message is located is the lowest, the retransmission message is deleted after the retransmission message is sent; otherwise, the retransmission message is placed in a retransmission queue of a lower level.
  • the method and device for resending a paging message multiple times fully consider the timeliness of paging messages, according to the retransmission interval of the paging message of the A port and the BS-PA-MFRMS of the paging number of the base station.
  • the number of maximum retransmission attempts is specified, and the paging message that reaches the maximum number of retransmission attempts is removed in time to save air interface traffic and storage space.
  • the original priority of the downlink CCCH messages is kept unchanged, and the transmission of the immediately assigned message is not affected.
  • FIG. 1 is a system architecture diagram of a method for resending a paging message multiple times according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for resending a paging message multiple times according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an apparatus for repeatedly resending a paging message according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a device for resending a paging message multiple times according to the present invention
  • a schematic structural view of still another embodiment The implementation, functional features, and advantages of the present invention will be further described with reference to the accompanying drawings. detailed description
  • an embodiment of a method for resending a paging message multiple times includes: Step S11: determining whether an immediate assignment message exists;
  • M FIFO First Input First Output
  • M is both the number of retransmission queues and each retransmission in the retransmission queue.
  • the maximum number of retransmissions of the message, and the priority of the M retransmission queues are successively decremented, that is, the retransmission message in the second retransmission queue is sent after all the retransmission messages in the first retransmission queue are completely transmitted.
  • the retransmission message indicates that the original paging message is successfully sent, and is placed in the retransmission queue to become a retransmission message to distinguish the original paging message.
  • the immediate assignment message, the paging message, and the retransmission message are sent, so first Determine if there is a high priority immediate assignment message.
  • Step S12 Send an immediate assignment message when there is an immediate assignment message, otherwise determine whether a paging message exists.
  • the immediate assignment message is sent preferentially, otherwise it is judged whether there is a lower priority paging message, which refers to the original paging message.
  • Step S13 Send the paging message when there is a paging message, and put the sent paging message into a retransmission queue with the highest priority among the M retransmission queues with a preset maximum retransmission number of M. Resending the message, and setting the number of retransmission attempts of the resend message to 0; otherwise, deleting the retransmission message in the retransmission queue with the number of retransmission attempts equal to M, and transmitting according to the priority order of the retransmission queue Resending the message in the retransmission queue;
  • the paging message is sent preferentially. After the paging message of the A port is successfully sent, the paging message is placed in the first retransmission queue of the paging group (the highest priority retransmission team) In the column, we call the paging message a retransmission message and initialize the number of retransmission attempts of the resend message to zero. When all the high priority messages of the paging group have been sent, the retransmission message in the 1 ⁇ M retransmission queue is prepared to be sent in sequence.
  • the resend message in the retransmission queue is sent according to the priority order of the retransmission queue, that is, the retransmission message in the retransmission queue with the higher priority is sent first, and the retransmission message in the retransmission queue with the lower priority is sent, only
  • the retransmission message in the N+1th retransmission queue is sent after all the retransmission messages in the Nth (N ⁇ M) retransmission queues are completely transmitted. After the resend message in the Nth (N ⁇ M) retransmission queue is successfully sent, it is stored in the N+1 retransmission queue, waiting for the next retransmission.
  • Step S14 Add 1 to the retransmission attempt of the retransmission message in all retransmission queues, and return to determine whether there is an immediate assignment message.
  • this embodiment performs the statistics of air interface paging retransmission of different traffic models under the typical configuration of the GSM network, such as 1 and Table 2.
  • Table 2 BTS Paging Retransmission Message and A Port Paging and Immediate Assignment Message Statistics
  • BaseStation-AGCH-Block-Reserve is a base station immediately assigns a reserved block indicating the number of CCCH blocks used only for transmitting an immediate assignment message (a paging message cannot be sent), which is set in the cell of the base station, and is set in the community;
  • CCCH CONF CCCH Configration
  • the carrier frequency includes the number of CCCH slots, and whether the CCCH slot is shared with the SDCCH (Stand-Alone Dedicated Control Channel), which is in the cell attribute of the base station. Settings.
  • the sending rate of the immediately assigned message is 10 ⁇ 50 strips/s.
  • the transmission rate of the A-port paging message changes, so the peak traffic of the downlink CCCH is not increased; the BTS re-sending paging message does not affect the transmission of the Abis interface immediate assignment message and the A-port paging message at the Urn interface.
  • the timeliness of the paging message is fully considered, and according to the A-port paging message retransmission interval and the base station paging multi-frame number BS-PA-MFRMS, the maximum number of retransmission attempts is specified, and the maximum retransmission is reached.
  • the paging message of the number of attempts is removed in time, saving air traffic and storage space; keeping the original priorities of the downlink CCCH messages unchanged, does not affect the transmission of the immediate assignment message, because the retransmission paging message has a lower priority than the immediate assignment message.
  • the original paging message so when the downlink CCCH traffic is large, the retransmission paging message will not be sent, so the air interface downlink CCCH peak traffic will not be increased.
  • step S13 includes:
  • the retransmission message When the priority of the retransmission queue in which the retransmission message is located is the lowest, the retransmission message is deleted after the retransmission message is sent; otherwise, the retransmission message is placed in a retransmission queue of a lower level.
  • step S11 another embodiment of the method for resending a paging message of the present invention is proposed.
  • the method before performing step S11, the method further includes:
  • Step S10 Calculate a paging group number according to a frame number and a common control parameter, and determine a common control channel.
  • CCCH sends the message type.
  • the method further includes:
  • Step S131 Calculate the length of the retransmission queue by using the following formula:
  • H is the number of CCCH logical channel multiframes
  • L is the frame duration
  • K is the number of Mobile Identitys contained in the Paging request type 3 message.
  • the capacity of the retransmission queue should be set reasonably, and the space is not wasted, and the retransmission message of the retransmission queue does not overflow. Therefore, the length of the retransmission queue needs to be calculated:
  • Step S132 Calculate the maximum number of retransmissions according to the following formula:
  • M W/( L*H*BS-PA-MFRMS ) -1 , where W is a paging message retransmission interval, and BS-PA-MFRMS is a base station paging multiframe number.
  • BS-PA-MFRMS calculates the maximum number of retransmission attempts M of the resend message.
  • the retransmission interval of the A-port paging message is set on the core network side, generally 6 ⁇ 8s, and the BS-PA-MFRMS (BaseStation-Page-MultiFrames) is the number of paging multi-frames of the base station, which is set in the cell attribute of the base station.
  • the value ranges from 2 to 9. You can also manually set the maximum number of retry attempts in the background.
  • the actual value is the smaller of the background setting value and the actual calculated value. This example assumes that the background setting value is also! ⁇ .
  • an embodiment of an apparatus for resending a paging message according to the present invention including: a determining module 10, configured to determine whether an immediate assignment message exists;
  • the sending module 20 is configured to send an immediate assignment message when there is an immediate assignment message, otherwise determine whether there is a paging message; when the paging message is present, send the paging message, and put the sent paging message into a preset The highest priority among the M retransmission queues with the maximum number of retransmissions of M Sending a queue, becoming a resend message, and setting the number of retransmission attempts of the resend message to 0; otherwise, deleting retransmission messages in the retransmission queue whose number of retransmission attempts is equal to M, according to the priority of the retransmission queue Sending resend messages in the retransmission queue sequentially;
  • the loop module 30 is configured to increment the number of retransmission attempts of the retransmission message in all retransmission queues by one, and return to determine whether there is an immediate assignment message.
  • M FIFO retransmission queues are created in advance for each paging group, where M is both the number of retransmission queues and the maximum number of retransmissions of each retransmission message in the retransmission queue, and M retransmissions.
  • the priority of the queue is decremented in turn, that is, the retransmission message in the second retransmission queue is sent after all the retransmission messages in the first retransmission queue are sent.
  • the resending message indicates that the original paging message is successfully sent, and is placed in the retransmission queue to become a retransmission message to distinguish the original paging cancellation embodiment according to the current frame number, common control parameters, and message priority.
  • the level (the message priority of the immediate assignment message, the paging message, and the retransmission message is successively decremented), the immediate assignment message, the paging message, and the retransmission message are sent, so it is first determined whether there is a high priority immediate assignment message.
  • the sending module 20 preferentially sends an immediate assignment message, otherwise the sending module 20 determines whether there is a lower priority paging message, which refers to the original paging message.
  • the sending module 20 preferentially sends the paging message. After the port paging message is successfully sent, the paging message is placed in the first retransmission queue of the paging group (the highest priority) In the retransmission queue, we call the paging message a retransmission message and initialize the number of retransmission attempts of the retransmission message to zero. When all the high priority messages of the paging group have been sent, the sending module 20 is prepared to sequentially send the retransmission message in the 1 ⁇ M retransmission queue.
  • the resend queue resend message is sent according to the priority order of the retransmission queue. That is, the retransmission message in the retransmission queue with the highest priority is sent first, and the retransmission message in the retransmission queue with the lower priority is sent, and only the retransmission messages in the Nth (N ⁇ M) retransmission queue are all sent.
  • the retransmission message in the (N+1)th retransmission queue is sent after completion. After the resend message in the Nth (N ⁇ M) retransmission queue is successfully sent, it is stored in the N+1 retransmission queue, waiting for the next retransmission.
  • the loop module 30 increments the number of retransmission attempts of all retransmission messages in the M retransmission queues of the current paging group by one, the purpose of this operation It is the timeliness of keeping paging messages in the retransmission queue.
  • the sending module 20 is specifically configured to:
  • the retransmission message When the priority of the retransmission queue in which the retransmission message is located is the lowest, the retransmission message is deleted after the retransmission message is sent; otherwise, the retransmission message is placed in a retransmission queue of a lower level.
  • the method further includes:
  • the preparation module 40 is configured to calculate a paging group number according to a frame number, a common control parameter, and determine a CCCH transmission message type of the common control channel.
  • the calculation length module 50 is configured to calculate the length of the retransmission queue by the following formula: W*K/( L*H*min-BS-PA-MFRMS ), H is the number of CCCH logical channel multiframes, and L is the frame duration , K is the number of Mobile Identity included in the Paging request type 3 message.
  • BS-PA-MFRMS is the number of paging multiframes of the base station.
  • the capacity of the retransmission queue should be set reasonably, neither Wasting space, and ensuring that the resend message of the resend queue does not overflow, so the length module needs to be calculated.
  • the calculation threshold module 60 calculates the maximum number of retransmission attempts M of the retransmission message according to the A-port paging message retransmission interval and BS-PA-MFRMS.
  • the retransmission interval of the A-port paging message is set on the core network side, generally 6 ⁇ 8s, and the BS-PA-MFRMS (BaseStation-Page-MultiFrames) is the number of paging multi-frames of the base station, which is set in the cell attribute of the base station.
  • the value ranges from 2 to 9. It is also possible to manually set the maximum number of retransmission attempts in the background.
  • the actual value is the smaller of the background setting value and the actual calculated value. This embodiment assumes that the background setting value is also M.
  • the paging message multiple retransmission scheme of the present invention fully considers the timeliness of the paging message, and specifies the maximum number of retransmission attempts according to the A-port paging message retransmission interval and the base station paging multi-frame number BS-PA-MFRMS.
  • the paging message that reaches the maximum number of retransmission attempts is removed in time to save air interface traffic and storage space; keeping the original priorities of the downlink CCCH messages unchanged, does not affect the transmission of the immediate assignment message, because the retransmission paging message takes precedence
  • the level is lower than the immediate assignment message and the original paging message. Therefore, when the downlink CCCH traffic is large, the retransmission paging message will not be sent, so the air interface downlink CCCH peak traffic will not be increased.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé pour la retransmission de message de radiomessagerie plusieurs fois, comprenant les étapes suivantes: la détermination de l'existence ou non d'un message d'affectation immédiate ; la transmission du message d'affectation immédiate lorsqu'un message de radiomessagerie existe ; au cas contraire, la détermination de l'existence d'un message de radiomessagerie ; la transmission du message de radiomessagerie lorsque le message de radiomessagerie existe, en plaçant le message de radiomessagerie dans une file d'attente de retransmission avec la plus haute priorité parmi M files d'attente de retransmission préétablies, le nombre maximum de fois de retransmission étant M, pour être utilisé comme message de retransmission, et l'établissement du nombre de fois de tentative du message de retransmission à 0 ; au cas contraire, l'effacement de messages de retransmission avec le nombre de fois de tentative de retransmission égal à M dans toutes les files d'attente de retransmission, et la transmission des messages de retransmission dans les files d'attente de retransmission à une séquence de priorités des files d'attente de retransmission ; et l'addition de 1 au nombre de fois de tentative de retransmission de toutes les files d'attente de retransmission, et un retour pour déterminer l'existence ou non du message d'affectation immédiate. Le procédé et le dispositif pour la retransmission d'un message de radiomessagerie plusieurs fois selon la présente invention améliorent le taux de succès de radiomessagerie tout en assurant la ponctualité du message de radiomessagerie.
PCT/CN2011/082089 2011-05-23 2011-11-11 Procédé et dispositif pour la retransmission de message de radiomessagerie plusieurs fois WO2012159419A1 (fr)

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CN105323035A (zh) * 2014-07-28 2016-02-10 中兴通讯股份有限公司 一种业务处理方法及装置
CN105682229A (zh) * 2014-11-21 2016-06-15 中兴通讯股份有限公司 一种减少重复寻呼的处理方法和装置
CN105764139A (zh) * 2014-12-16 2016-07-13 中兴通讯股份有限公司 一种基站的寻呼方法和基站
CN107113092A (zh) * 2015-04-09 2017-08-29 华为技术有限公司 消息发送/接收方法、覆盖增强等级确定/获取方法及相关设备
CN106961727B (zh) * 2016-01-11 2020-02-21 电信科学技术研究院 一种寻呼及其控制方法及装置
CN107027091B (zh) * 2016-02-02 2020-08-11 中兴通讯股份有限公司 消息窗确定方法、装置和系统
CN111082901B (zh) * 2019-11-21 2022-05-13 深圳前海环融联易信息科技服务有限公司 一种智能消息发送方法、装置、计算机设备及存储介质
CN115396827B (zh) * 2021-05-24 2024-01-30 成都鼎桥通信技术有限公司 信息处理的方法、装置、设备、存储介质及程序产品

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