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WO2012048570A1 - Procédé et dispositif de commande de positionnement temporel d'émission de liaison montante dans un système d'évolution à long terme (lte) - Google Patents

Procédé et dispositif de commande de positionnement temporel d'émission de liaison montante dans un système d'évolution à long terme (lte) Download PDF

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Publication number
WO2012048570A1
WO2012048570A1 PCT/CN2011/074315 CN2011074315W WO2012048570A1 WO 2012048570 A1 WO2012048570 A1 WO 2012048570A1 CN 2011074315 W CN2011074315 W CN 2011074315W WO 2012048570 A1 WO2012048570 A1 WO 2012048570A1
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Prior art keywords
adjustment
uplink
boundary
period
amount
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PCT/CN2011/074315
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English (en)
Chinese (zh)
Inventor
唐凯
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/009—Closed loop measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to an uplink transmit timing control method and apparatus in a Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • the uplink uses single carrier frequency division (SC-FDMA) multiple access technology, which requires different user terminal (UE) uplink data to reach the base station (eNB) within the cyclic prefix (CP) length as much as possible.
  • SC-FDMA single carrier frequency division
  • UE user terminal
  • eNB base station
  • CP cyclic prefix
  • the LTE system guarantees/limits the uplink transmission time from the following aspects:
  • the UE's transmission has a Timing Advance (TA) relative to the reception.
  • the timing advance TA is related to the distance between the UE and the eNB.
  • the TA actually reflects the Round Trip Delay (RTD).
  • RTD Round Trip Delay
  • the eNB performs uplink transmission timing control by adjusting the TA of each UE according to the reception timing estimation; the TA adjustment command in the LTE is transmitted to the UE through the medium access control MAC signaling manner.
  • the schematic diagram of the uplink emission boundary adjustment by TA is shown in Figure 1:
  • N TA is adjusted by the eNB through the TA command;
  • the TA adjustment has the following timing constraints: For the nth subframe The obtained TA command requires that the corresponding transmission timing adjustment be performed in the subframe n+6, and if the transmission of the n+6th subframe overlaps with the n+5th subframe due to the adjustment of the transmission timing, the UE completely transmits. The n+5th subframe does not transmit the beginning overlap of the n+6th subframe.
  • the UE completes the uplink transmission boundary adjustment at the specified timing, and also needs to handle the automatic autonomous tracking caused by the downlink reception timing change; usually, in order to ensure downlink reception Performance, after the initial cell search finds the downlink reception boundary, the receiver of the UE needs to be able to continuously track and update the downlink reception boundary, and since (N TA + N TA ffset ) x Ts represents "transmission (uplink) timing)
  • the advancement amount TA" with respect to the reception (downlink) timing, and the value of the base station is unchanged before the base station transmits the TA command.
  • the automatic uplink timing tracking is triggered by the change of the downlink reception timing.
  • the tracking frequency and amplitude are also limited in the protocol:
  • Each individual adjustment step does not exceed Tq;
  • Minimum adjustment rate Adjust at least 7*T S per second
  • the uplink adjustment period of the uplink transmission boundary is generally selected to be 200 ms, and the corresponding maximum adjustment step size is Tq, so that the processing exists in different channel environments as follows.
  • the problem is that when the uplink transmission boundary is frequently changed in the high-speed mobile environment, when the uplink adjustment period is selected as 200ms, the change of the uplink transmission boundary cannot be quickly tracked, and the uplink advance timing TA cannot be adjusted in time.
  • the UE uplink transmission timing continuously follows the downlink reception boundary change and rapidly hops, which causes great trouble for the eNB receiving; when in the static or low-speed mobile environment, the uplink transmission boundary is unchanged or the transition period is very long. In the large case, when the selection period is 200ms, the overhead of the system may be increased, and the energy consumption of the device is wasted. Summary of the invention
  • the main technical problem to be solved by the present invention is to provide an uplink transmission timing control method and apparatus in an LTE system, which can track and adjust the downlink reception boundary, and obtain the tracking result according to the tracking.
  • the current advance adjustment amount is dynamically monitored by the time advance command sent by the base station to better ensure the smooth reception of the base station.
  • the present invention provides an uplink transmission timing control method in an LTE system, including: setting a cumulative adjustment amount; the method includes the following steps:
  • the uplink transmission boundary is adjusted according to the current cumulative adjustment amount to: perform an uplink boundary adjustment at a periodic point of a preset uplink adjustment period, where the uplink adjustment period includes At least one level.
  • the downlink receiving boundary is adjusted to: perform downlink receiving boundary adjustment at a periodic point of a preset downlink adjustment period;
  • the dynamically monitoring whether there is a time advance command sent by the base station needs to be performed as follows: determining whether the period of the uplink adjustment period and the period of the downlink adjustment period arrive before or at the same time.
  • the uplink adjustment period includes multiple levels, different levels of uplink adjustment periods correspond to different maximum adjustment steps.
  • the ratio of the maximum adjustment step size corresponding to the uplink adjustment period of each level other than the highest level to the maximum adjustment step size corresponding to the highest level uplink adjustment period, and the highest level are the same as the highest level of the uplink adjustment period.
  • the corresponding maximum adjustment step size is an absolute adjustment step;
  • the maximum adjustment step corresponding to the maximum adjustment step is 1/2, 1/4, and 1 of the absolute adjustment step. /8.
  • the method further includes: selecting, according to an adjustment frequency of the uplink transmission boundary of different channels, the uplink adjustment period corresponding thereto.
  • the uplink transmission boundary is adjusted according to the current accumulated adjustment amount to: determine whether the accumulated adjustment amount is greater than a maximum adjustment step of the uplink adjustment period, and if not, The adjustment amount of the uplink emission boundary adjustment is directly the cumulative adjustment amount, and the accumulated adjustment amount is cleared; if yes, the adjustment amount of the uplink emission boundary adjustment is the maximum adjustment step size, and the cumulative adjustment amount corresponds to The step of determining the cumulative adjustment amount is repeated when the cycle point of the next uplink adjustment period comes.
  • An uplink transmission timing control apparatus in an LTE system comprising: a downlink reception boundary tracking adjustment module, an uplink transmission boundary adjustment module, and a timing advance command processing module; wherein the downlink reception boundary tracking adjustment module is used for tracking a downlink receiving boundary, updating the preset cumulative adjustment amount according to the adjustment amount adjusted for each downlink receiving boundary, and transmitting the accumulated adjustment amount to the uplink transmitting boundary adjustment module; the uplink transmitting boundary adjustment module, And performing, according to the current accumulated adjustment amount obtained by tracking the downlink receiving boundary, performing corresponding uplink transmission boundary adjustment; the time advance command processing module is configured to dynamically monitor whether a time advance command needs to be executed, and the priority is based on The timing advance command commands an uplink transmission boundary adjustment and clears the accumulated adjustment amount.
  • the uplink transmission boundary adjustment module performs the uplink transmission boundary adjustment according to the cumulative adjustment amount, which is performed at a periodic point of a preset uplink adjustment period, where the uplink adjustment period includes At least one level.
  • the downlink receiving boundary adjustment performed by the downlink receiving boundary tracking adjustment module is performed at a periodic point of a preset downlink adjustment period
  • the timing advance command processing module is further configured to dynamically monitor whether there is a base station sending The time advance command needs to be executed before determining whether there is a periodic point of the uplink adjustment period and a period point of the downlink adjustment period before or at the same time.
  • the uplink adjustment periods of different levels correspond to different maximum adjustment step sizes.
  • the ratio of the maximum adjustment step size corresponding to the uplink adjustment period of each level other than the highest level to the maximum adjustment step size corresponding to the highest level uplink adjustment period, and the highest level are the same as the highest level of the uplink adjustment period.
  • the uplink transmission boundary adjustment module when the uplink transmission boundary adjustment module performs uplink transmission boundary adjustment according to the accumulated adjustment amount, it is determined whether the cumulative adjustment amount is greater than the maximum adjustment of the corresponding uplink adjustment period. Step size, if not, the adjustment amount of the uplink emission boundary adjustment is directly the cumulative adjustment amount, and clears the accumulated adjustment amount; if yes, the adjustment amount of the uplink emission boundary adjustment is the maximum adjustment step size The cumulative adjustment amount correspondingly decreases the maximum adjustment step size, and when the cycle point of the next uplink adjustment period comes, the operation of determining the accumulated adjustment amount is repeated.
  • the beneficial effects of the present invention are as follows:
  • the present invention performs tracking adjustment on the downlink receiving boundary, and accumulates each adjustment amount to obtain a cumulative adjustment amount.
  • the periodic point of the uplink adjustment period arrives, the corresponding cumulative adjustment amount is performed according to the current cumulative adjustment amount.
  • Uplink emission boundary adjustment and during the above cycle, dynamically monitoring whether there is a time advance command to be executed, if yes, prioritizing the uplink emission boundary according to the time advance command, and clearing the accumulated adjustment amount, thereby ensuring
  • the value of the time advance of the uplink transmission boundary with respect to the downlink reception boundary is a value expected by the base station to better ensure the smooth reception of the base station.
  • FIG. 1 is a schematic diagram of the principle of uplink transmission timing control according to an embodiment of the present invention
  • FIG. 2 is an overall block diagram of an embodiment of the present invention
  • FIG. 3 is a flowchart of downlink receiving boundary tracking adjustment according to an embodiment of the present invention
  • FIG. 4 is a flowchart of automatically adjusting an uplink transmission boundary according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of processing a time advance command according to an embodiment of the present invention.
  • Figure 6 is an overall detailed flow chart of an embodiment of the present invention. detailed description
  • the uplink since the uplink uses the single-carrier frequency division SC-FDMA multiple access technology, it is required that different UE uplink data can reach the eNB within the CP length as much as possible to ensure orthogonality between different UEs. Therefore, the LTE system needs to guarantee/limit the uplink transmission time from two aspects: First, the TA command sent by the eNB adjusts the uplink (TX) transmission boundary of the UE side, and secondly, the UE side needs to continuously track the downlink (RX).
  • TX uplink
  • RX downlink
  • the receiving boundary when it is found that there is a change in the RX boundary, it is also necessary to actively adjust the TX boundary; therefore, in order to better ensure the smooth reception of the eNB, the above two aspects need to be organically combined, and flexible for different channel environments. Choose to adjust the parameters to meet their different performance needs.
  • the uplink adjustment period corresponds to different maximum adjustment step sizes; for example, the ratio of the maximum adjustment step size corresponding to the uplink adjustment period of each level other than the highest level to the maximum adjustment step size corresponding to the highest level uplink adjustment period, and The ratio of the uplink adjustment period of each level other than the highest level to the highest level of the uplink adjustment period may be the same; the specific one may be as follows: When the uplink adjustment period is the highest level of the uplink adjustment period, the corresponding maximum adjustment step When the value of the uplink adjustment period is 1/2, 1/4, and 1/8 of the highest level uplink adjustment period, the maximum adjustment step corresponding to the maximum adjustment step is the absolute adjustment step.
  • the highest level of the upstream adjustment period takes 200 milliseconds
  • the corresponding adjustment step is the absolute adjustment step length Tq
  • the corresponding maximum adjustment step length may be Tq /2, Tq/4, and Tq/8;
  • the uplink adjustment period can also be flexibly selected as other ratio values of 200 milliseconds, and the corresponding maximum adjustment step size is selected as the ratio corresponding to the absolute adjustment step size Tq.
  • the downlink receiving boundary adjustment is performed at a periodic point of the preset downlink adjustment period.
  • the monitoring of whether there is a time advance command sent by the base station needs to be performed to determine whether there is a periodic point of the uplink adjustment period and the downlink adjustment period. Before the cycle point arrives or is performed at the same time, of course, according to the actual needs of the system, whether or not the TA command needs to be performed for real-time monitoring can be monitored at any time.
  • the value of the uplink adjustment period is selected according to the adjustment frequency of the uplink transmission boundary of the different channel environment, and the adjustment frequency of the uplink transmission boundary may also be set to include at least one level, and the level thereof corresponds to the level of the uplink adjustment period.
  • the uplink boundary adjustment period of the corresponding level is selected, for example, the uplink is uplinked.
  • the adjustment frequency of the transmission boundary can also be divided into four levels corresponding to the above uplink adjustment period according to the actual situation of the system.
  • the adjustment frequency of the uplink transmission boundary falls within the level with the largest adjustment frequency, the corresponding uplink adjustment period is selected.
  • the minimum upstream adjustment period allows fast tracking of the upstream transmit boundary and adjusts accordingly.
  • the uplink transmission boundary adjustment is performed according to the cumulative adjustment amount, it is determined whether the cumulative adjustment amount is greater than a maximum adjustment step of the uplink adjustment period: If not, the adjustment amount of the uplink transmission boundary adjustment is directly the cumulative adjustment amount And clearing the accumulated adjustment amount; if yes, the adjustment amount of the uplink transmission boundary adjustment is the maximum adjustment step length, and the cumulative adjustment amount correspondingly decreases the maximum adjustment step length, in the next uplink adjustment period Repeat the above steps when the cycle point arrives.
  • the time advance command is executed preferentially, and the accumulated adjustment amount is cleared.
  • Adjustment amount Adjust-value The cumulative adjustment is Adjust-accumulated.
  • the adjustment amount Adjust_value described above is an adjustment amount for each adjustment of the RX reception boundary.
  • the downlink reception timing can be obtained by MRTR and RX_offset, which can be used as the boundary of the radio frequency (RF).
  • RF radio frequency
  • TX_offset In order to ensure that each adjustment of RX_offset does not immediately affect the adjustment of the TX boundary, TX_offset needs to be updated accordingly, that is, Adjust_value is added; Adjust-accumulated is accumulated by Adjust_value, mainly For the subsequent TX adjustment service; it should be noted that the initial value of RX_offset is obtained by the "rough synchronization" process, and the initial value of Adjust-accumulated is set to 0; RX_tracking_period can be flexibly designed according to the performance required by the system.
  • TX automatically adjusts the boundary based on the Adjust-accumulated resulting from the adjustment of the tracking RX boundary.
  • the following physical quantities can be designed:
  • the level of the upstream adjustment period can be designed as the following table:
  • the LTE protocol has clear requirements for tracking frequency and amplitude.
  • a table is designed to enable TX_tracking_period and Tq' Correct matching can not only meet the requirements of adjusting the frequency, but also effectively control the TX boundary tracking adjustment frequency by using different corresponding items in the table.
  • other proportions of uplink adjustment period can also be set to meet the system. Performance needs.
  • the parameter can be flexibly configured to meet actual needs.
  • the adjustment frequency of the uplink transmission boundary for different systems can also be divided into four corresponding to the above TX_tracking_period according to the actual situation of the system.
  • Level when the adjustment frequency of the uplink transmission boundary falls within the level with the largest adjustment frequency, the corresponding TX_tracking_period selects the minimum level of the uplink adjustment period, so that the downlink reception boundary can be quickly tracked and adjusted accordingly.
  • the user can also select according to the actual situation of the system. In the environment where the uplink transmission boundary frequently hops (such as in a high-speed mobile environment), a smaller TX_tracking_period can be selected to reach the fast and accurate tracking of the uplink transmission boundary.
  • TX_tracking_period In the environment where the uplink transmission boundary is infrequently hopping (such as in a static environment), a larger TX_tracking_period can be selected to reduce the processing overhead of the device and save power; meanwhile, to meet "each individual adjustment"
  • the step size does not exceed the Tq" limit. After using the designed table, it becomes "each individual adjustment step does not exceed Tq'".
  • the RX is adjusted in TX_tracking_period.
  • Adjust-accumulated to judge, if it is greater than Tq', it needs to complete the uplink emission boundary adjustment multiple times, each adjustment amount is Tq ', the corresponding Adjust-accumulated decrease Tq ', the updated Adjust_accumulated repeats the above steps when the cycle point of TX_tracking_period arrives; if it is less than Tq' (this may have been adjusted more than once, or the RX boundary adjustment is small), then it is directly adjusted to the eNB expectation
  • TX_target The uplink and downlink receive boundary offset (TX_target); thus, the TX transmission boundary can be constantly fine-tuned, so that the eNB can continuously maintain uplink synchronization, and finally adjust the TX transmission boundary to the time desired by the eNB.
  • TX_offset accumulated by TX_cmd
  • TX_target desired uplink and downlink reception boundary offset value
  • the UE completely transmits the n+5th subframe without transmitting the first overlapping portion of the n+6th subframe; and in the nth subframe to the n+5th subframe
  • the time gap does not affect the RX receive boundary tracking adjustment and the TX transmit boundary automatic adjustment.
  • TX_offset is updated to RX_offset+Adj ust_value
  • Adj ust_accumulated Adj ust_accumulated+ Adjust_value
  • Adjust_accumulated ⁇ Tq directly adjust TX_target to TX_target + Adjust-accumulated', when Adjust-accumulated > T
  • An embodiment of the device of the present invention includes a downlink receiving boundary tracking adjustment module, an uplink transmitting boundary adjustment module and a timing advance command processing module; a downlink receiving boundary tracking adjusting module is configured to track a downlink receiving boundary, and accumulate each downlink receiving The adjustment amount of the boundary adjustment is obtained, and the cumulative adjustment amount is obtained, and the accumulated adjustment amount is transmitted to the uplink transmission boundary adjustment module; the uplink transmission boundary adjustment module is configured to perform corresponding uplink transmission according to the current cumulative adjustment amount obtained by tracking the downlink reception boundary.
  • Boundary adjustment the time advance command processing module is configured to dynamically monitor whether a time advance command arrives, and if so, prioritize the uplink transmit boundary adjustment according to the time advance command, and clear the accumulated adjustment amount.
  • the downlink receiving boundary tracking adjustment module performs only when the downlink adjustment period point arrives.
  • the adjustment of the downlink reception boundary, the uplink transmission boundary adjustment module also performs the corresponding uplink transmission boundary adjustment according to the accumulated adjustment amount when the uplink adjustment period point arrives, and monitors whether there is a time advance quantity command to arrive to determine whether there is a downlink adjustment period.
  • the cycle point or the cycle point of the uplink adjustment cycle arrives before or at the same time; of course, according to the actual needs of the system, it is also possible to perform real-time detection on whether there is a time advance command arrival, that is, to monitor it at any time, Meet the needs of the system.
  • the uplink adjustment period may be selected according to the table or the actual requirement in the above method, and the corresponding maximum step size of the adjustment may also be selected according to the above proportional relationship.
  • the corresponding physical quantities are the physical quantities in the above-mentioned methods cited.
  • the RX receiving boundary is in the process of automatic tracking adjustment at the above multiple RX_tracking _period cycle points.
  • the value of accumulated is updated to 0.5 seconds, that is, the RX receiving boundary is shifted in a certain direction by 0.5 seconds during this period.
  • the offset value of the TX transmission boundary and the RX reception boundary is the value expected by the eNB, and the transmission boundary must also be shifted to the right by 0.5 seconds.
  • the maximum adjustment step length Tq' corresponding to the TX_tracking_period is 0.25 seconds.
  • Adjust-accumulated is 0.5, which is greater than 0.25, so the direction of the TX emission boundary shifting to the RX receiving boundary is shifted by 0.25.
  • the tracking adjustment is performed on the downlink receiving boundary, and each adjustment of Adjust_va lue is performed to obtain Adjust_accumulated.
  • the uplink transmission boundary adjustment is performed according to the current Adjust-accumulated;
  • the TX_cmd of the command adjusts the uplink transmission boundary and clears Adjust-accumulated to ensure that the time advance value of the uplink transmission boundary relative to the downlink reception boundary is the value expected by the base station, so as to better ensure the smooth reception of the base station.
  • the downlink adjustment period can be selected according to the needs of the specific situation, and the uplink adjustment period of the present invention can also be adjusted according to actual needs. For example, when the uplink transmission boundary frequently hops, a smaller uplink can be selected. Adjust the period to quickly track the transition of the uplink transmission boundary. When the row emission boundary is infrequently hopping, a larger uplink adjustment period can be selected, thereby reducing system overhead and saving energy. Therefore, this embodiment can satisfy different channel environments. Different performance requirements.
  • the present invention sets the priority of the timing advance command to the highest priority, thereby processing the timing advance command and the uplink transmission boundary of the uplink transmission boundary according to the accumulated adjustment amount obtained by tracking the downlink reception boundary. Automatically adjust the organic combination to better ensure the reception of the base station.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un procédé de commande de positionnement temporel d'émission de liaison montante dans le système d'évolution à long terme (LTE). Le procédé comprend les étapes consistant à : régler une quantité d'ajustement cumulée; tracer une frontière de réception de liaison descendante, mettre à jour la quantité d'ajustement cumulée, conformément à la quantité d'ajustement pour ajuster la frontière de réception de liaison descendante pour chaque fois, et ajuster une frontière d'émission de liaison montante, conformément à la quantité d'ajustement cumulée courante lors de l'ajustement de la frontière d'émission de liaison montante; surveiller dynamiquement s'il existe ou non une instruction d'avance temporelle (TA) envoyée par une station de base (BS) devant être exécutée, si oui, ajuster la frontière d'émission de liaison montante conformément à l'instruction TA de manière prioritaire, et régler à nouveau la quantité d'ajustement cumulée. Au moyen des opérations consistant à tracer et à ajuster la frontière de réception de la liaison descendante, réaliser un ajustement de frontière d'émission de liaison montante correspondant, conformément à la quantité d'ajustement cumulée, et, simultanément, surveiller dynamiquement s'il existe ou non une instruction TA devant être exécutée, si oui, exécuter l'instruction TA d'une manière prioritaire. La présente invention assure que la valeur de décalage entre la frontière d'émission de liaison montante et la frontière de réception de liaison descendante est la valeur attendue par la BS, et assure une réception réussie par la BS d'une meilleure manière.
PCT/CN2011/074315 2010-10-11 2011-05-19 Procédé et dispositif de commande de positionnement temporel d'émission de liaison montante dans un système d'évolution à long terme (lte) Ceased WO2012048570A1 (fr)

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CN201010503158.2 2010-10-11
CN201010503158.2A CN102448162B (zh) 2010-10-11 2010-10-11 一种lte系统中上行发射定时控制方法与装置

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CN103582109B (zh) * 2012-07-23 2016-09-07 京信通信系统（中国）有限公司 一种时间同步方法及装置
CN103634896B (zh) * 2012-08-21 2019-02-05 深圳市中兴微电子技术有限公司 多模终端的数据处理方法及装置
WO2017166052A1 (fr) * 2016-03-29 2017-10-05 华为技术有限公司 Procédé de temporisation pour une émission discontinue et dispositif pertinent
CN114286435A (zh) * 2017-12-06 2022-04-05 上海朗桦通信技术有限公司 一种用于无线通信的通信节点中的方法和装置
CN110831236A (zh) * 2018-08-09 2020-02-21 华为技术有限公司 随机接入的方法和装置
CN112789910A (zh) * 2020-11-30 2021-05-11 北京小米移动软件有限公司 定时调整方法及装置、通信设备和存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1466285A (zh) * 2002-06-06 2004-01-07 华为技术有限公司 时分双工无线通信系统中实现同步的方法
WO2007003071A1 (fr) * 2005-07-06 2007-01-11 Zte Corporation Procédé d’établissement de synchronisation de liaison ascendante reposant sur la technologie de transmission unifiée et matrice de transmission idoine
CN101572940A (zh) * 2009-05-27 2009-11-04 新邮通信设备有限公司 一种上行同步或上行功率控制的方法、基站和用户设备
WO2009147709A1 (fr) * 2008-06-02 2009-12-10 富士通株式会社 Procédé pour un système d'ajustement de temporisation, de station mobile, de station de base et de communication mobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1466285A (zh) * 2002-06-06 2004-01-07 华为技术有限公司 时分双工无线通信系统中实现同步的方法
WO2007003071A1 (fr) * 2005-07-06 2007-01-11 Zte Corporation Procédé d’établissement de synchronisation de liaison ascendante reposant sur la technologie de transmission unifiée et matrice de transmission idoine
WO2009147709A1 (fr) * 2008-06-02 2009-12-10 富士通株式会社 Procédé pour un système d'ajustement de temporisation, de station mobile, de station de base et de communication mobile
CN101572940A (zh) * 2009-05-27 2009-11-04 新邮通信设备有限公司 一种上行同步或上行功率控制的方法、基站和用户设备

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CN102448162A (zh) 2012-05-09

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