WO2022141598A1 - 上行定时提前量确定、公共定时相关信息广播方法和装置 - Google Patents

上行定时提前量确定、公共定时相关信息广播方法和装置 Download PDF

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Publication number
WO2022141598A1
WO2022141598A1 PCT/CN2020/142556 CN2020142556W WO2022141598A1 WO 2022141598 A1 WO2022141598 A1 WO 2022141598A1 CN 2020142556 W CN2020142556 W CN 2020142556W WO 2022141598 A1 WO2022141598 A1 WO 2022141598A1
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Prior art keywords
related information
valid
time
timing
common timing
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PCT/CN2020/142556
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English (en)
French (fr)
Inventor
江小威
Original Assignee
北京小米移动软件有限公司
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.)
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080004058.7A priority Critical patent/CN112771943A/zh
Priority to US18/259,609 priority patent/US20240073840A1/en
Priority to EP20967936.4A priority patent/EP4274323A1/en
Priority to PCT/CN2020/142556 priority patent/WO2022141598A1/zh
Publication of WO2022141598A1 publication Critical patent/WO2022141598A1/zh

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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
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • 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
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method for determining an uplink timing advance, a method for broadcasting common timing related information, an apparatus for determining an uplink timing advance, an apparatus for broadcasting common timing related information, an electronic device, and a computer-readable storage medium.
  • the base station can indicate the timing advance (Timing Advance) to the terminal, and the terminal obtains uplink synchronization according to the timing advance indicated by the base station, but the size of the timing advance that the base station can indicate is limited. The maximum cannot exceed 2 milliseconds.
  • NTN Non-Terrestrial Networks
  • the terminal and the ground base station communicate through satellite. Since the satellite is in the air, it takes a long time for the signal to be transmitted from the ground to the satellite, and then from the satellite to the ground. , so a large delay will occur, and the maximum delay can reach more than 500 milliseconds, which is far greater than the timing advance that can be indicated by the base station.
  • the embodiments of the present disclosure propose an uplink timing advance determination method, a public timing related information broadcasting method, an uplink timing advance determination apparatus, a common timing related information broadcasting apparatus, an electronic device, and a computer-readable storage medium to solve the problem.
  • a method for determining an uplink timing advance is proposed, which is applicable to a terminal, and the method includes:
  • the uplink timing advance is determined according to the common timing related information.
  • a method for broadcasting public timing related information which is applicable to a cell, and the method includes:
  • Broadcasting common timing related information wherein the common timing related information is used by terminals in the cell to determine an uplink timing advance.
  • an apparatus for determining an uplink timing advance is provided, which is applicable to a terminal, and the apparatus includes:
  • a timing information receiving module configured to receive public timing related information broadcast by the cell
  • the timing advance determination module is configured to determine the uplink timing advance amount according to the common timing related information.
  • an apparatus for broadcasting public timing related information which is applicable to a cell, and the apparatus includes:
  • the timing broadcasting module is configured to broadcast common timing related information, wherein the common timing related information is used for the terminal in the cell to determine the uplink timing advance.
  • an electronic device including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the above-mentioned method for determining an uplink timing advance, and/or the above-mentioned method for broadcasting common timing related information.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned uplink timing advance determination method and/or the above-mentioned public timing related information is implemented. Steps in the broadcast method.
  • the cell does not need to indicate all the uplink timing advance, but only needs to indicate the common timing related information, and the common timing related information will not be greater than the uplink timing advance, so it is beneficial to reduce the amount of indicated information.
  • the terminal determines that the received common timing related information is valid according to the effective time related information, it is not necessary to acquire the system information carrying the common timing related information, so that even if the common time When the offset changes, the cell does not have to constantly notify the terminal of the changed public time offset, which is beneficial to reduce signaling overhead and reduce the power consumption of the terminal.
  • FIG. 1 is a schematic flowchart of a method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic flowchart of another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of still another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic flowchart of still another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic flowchart of a method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic flowchart of another method for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic flowchart of yet another method for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic flowchart of yet another method for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 21 is a schematic block diagram of an apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 22 is a schematic block diagram of another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 23 is a schematic block diagram of another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 24 is a schematic block diagram of yet another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 25 is a schematic block diagram of an apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 26 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 27 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 28 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 29 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 30 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 31 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 32 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 33 is a schematic block diagram of an apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • FIG. 34 is a schematic block diagram of an apparatus for determining uplink timing advance according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic flowchart of a method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the method for determining the uplink timing advance shown in this embodiment may be applicable to terminals, and the terminals include but are not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may communicate with a base station as a user equipment, and the base station includes but is not limited to a 4G base station, a 5G base station, and a 6G base station.
  • the base station may be a base station to which the method for broadcasting public timing-related information described in any subsequent embodiment is applicable.
  • the terminal and the base station may communicate in a non-terrestrial network
  • the terminal and the base station may be located on the ground
  • the terminal may communicate with the base station through an over-the-air device, for example, the base station sends information to the over-the-air device first, and then the over-the-air device sends the information to the terminal .
  • the aerial equipment includes, but is not limited to, satellites, drones, aerial platforms, etc., and the aerial equipment can move in the air.
  • the cell described in the following embodiments may refer to the signal coverage area of the over-the-air equipment.
  • the base station may send the information to the over-the-air equipment, and the over-the-air equipment may send the information to the terminals in the cell.
  • the transmission method may be broadcast or Unicast.
  • the method for determining the uplink timing advance may include the following steps:
  • step S101 receive public timing related information broadcast by the cell
  • step S102 the uplink timing advance is determined according to the common timing related information.
  • the cell can broadcast common timing related information, and when the terminal is within the signal coverage of the cell, it can receive the common timing related information broadcast by the cell, and then the terminal can determine the uplink timing advance according to the common timing related information.
  • the public timing related information broadcast by the cell may be determined by the base station corresponding to the cell as required, which is not limited in this embodiment of the present disclosure.
  • the common timing-related information includes at least one of the following:
  • the common timing offset is obtained at least according to the common timing offset, and the common timing offset may refer to the round trip delay (Round Trip Time, RTT) between the base station and the ground reference point, such as the time between the air equipment and the ground reference point.
  • RTT Round Trip Time
  • the distance is d0
  • the distance from the air device to the base station is d0_F
  • the signal propagation speed is equal to the speed of light c
  • the common timing offset is equal to 2*(d0+d0_F)/c
  • the common timing offset is at least based on 2*(d0+d0_F) /c get.
  • the cell does not need to indicate all the uplink timing advance, but only needs to indicate the common timing related information, and the common timing related information will not be greater than the uplink timing advance, so it is beneficial to reduce the amount of indicated information.
  • the terminal may determine the uplink timing advance TA according to the following formula:
  • X is the common timing offset
  • N TA is obtained based on the specific timing advance of the terminal UE specific TA
  • N TA,offset is the TA offset value, which may be a known defined value
  • T c is a known defined value.
  • the terminal may perform uplink synchronization according to the uplink timing advance when sending uplink information. For example, when performing random access, the transmission random The first message Msg1/MsgA accessed is pre-compensated.
  • the common timing offset broadcast by the cell may include two parts, one part is the common timing offset that needs to be compensated by the terminal, such as X 1 , and the other part is compensated by the network (such as satellite, base station)
  • the common timing offset of for example, referred to as X 2
  • the terminal can determine the uplink timing advance according to the above embodiment according to the common timing offset X 1 in which the terminal needs to be compensated.
  • the cell can also broadcast the sum of X 1 and X 2 , and one of X 1 and X 2 , then the other of X 1 and X 2 can be obtained by the terminal through subtraction.
  • the common timing related information may be carried in the system information broadcast by the cell, for example, may be carried in the system information block SIB1 or other system information.
  • the cell can notify the terminal whether the system information is updated through broadcast paging, and the terminal can obtain the updated and updated public timing related information from the system information when the terminal determines that the system information is updated according to the paging. In the case where it is determined according to the paging information that the system information has not been updated, it may not be necessary to acquire the system information, so as to reduce the power consumption of the terminal.
  • the terminal when the common timing related information is carried in other system information, when the terminal determines the system information update according to paging, it can further determine whether it is carried in other system information according to a preset field in SIB1, such as valueTag in si-SchedulingInfo Whether the public timing-related information in the system information is updated, if the public timing-related information in other system information is not updated, the valueTag can remain unchanged, and when the public timing-related information in other system information is updated, the valueTag can be Change.
  • SIB1 a preset field in SIB1
  • FIG. 2 is a schematic flowchart of another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 2 , the determining of the uplink timing advance according to the common timing related information includes:
  • step S201 update the common timing offset according to the common timing offset of the starting time, the time drift rate, and the duration from the starting time to the timing advance update moment;
  • step S202 the uplink timing advance is determined according to the updated common timing offset.
  • the common timing related information may include, in addition to the common timing offset, a time drift rate, where the time drift rate refers to the amount of change in the common timing offset per unit time, and may also refer to the uplink The amount of change in timing advance per unit time.
  • the common timing offset X 0 of the start time and the duration t from the start time to the update time can be determined first, then the time can be determined according to the time
  • the common timing offset TA 0 of the start time and the duration t from the start time to the update time can be determined first, then the time drift can be determined according to the time drift.
  • Update TA 0 at rate R to obtain the updated common timing offset TA TA 0 +t ⁇ R.
  • the update time can be periodic, and the specific cycle can be indicated by the network or stored in advance by the terminal; the update time can also be aperiodic, then the specific update time can be indicated by the network, or according to the update bias.
  • the offset determines the update time, for example, the start time plus the update offset equals the update time, and the update offset can be indicated by the network or stored in advance by the terminal.
  • the above-mentioned unit time includes but is not limited to at least one of the following:
  • the start time is at least one of the following:
  • the boundary of the system information window at the time of receiving the public timing related information such as the start boundary of the system information window and the end boundary of the system information window;
  • the nearest system frame number boundary before or after the time of receiving the public timing related information such as the start boundary of the system frame number, the end boundary of the system frame number;
  • the transmission period boundary of the system information block SIB1 before or after the time when the public timing related information is received such as the start boundary of the transmission period and the end boundary of the transmission period, wherein the system information block SIB1 is used to carry the public timing correlation information information.
  • the public time offset will continue to change with the movement of the aerial devices. If the terminal is constantly notified of the changed public time offset, it will cause a lot of information In order to reduce the overhead and provide the power consumption of the terminal, the following embodiments propose the content of the valid time related information.
  • Fig. 3 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in Figure 3, the method further includes:
  • step S301 the effective time related information of the public timing related information broadcast by the cell is received
  • step S302 it is determined according to the valid time-related information that the received common timing-related information is valid.
  • the public timing-related information may have a certain timeliness, and the specific valid time-related information about the timeliness may be broadcast by the cell, and then the terminal can determine whether the received public timing-related information is valid according to the valid time-related information. .
  • the received common timing related information in the case that the received common timing related information is determined to be valid according to the valid time related information, it may not be necessary to acquire system information carrying the common timing related information, so as to reduce power consumption.
  • the cell does not need to continuously notify the terminal of the changed common time offset, which is beneficial to reduce signaling overhead and reduce power consumption of the terminal.
  • the cell can also update the public timing related information as needed, and notify the terminal of the change in system information through paging. In this case, even if the terminal determines that the received The public timing-related information is valid, but system information still needs to be received to obtain updated public timing-related information.
  • the common timing-related information may include a common timing offset and a time drift rate
  • the valid time-related information may be applicable only to the common timing offset, or only to the time drift rate, or both. The amount of shift, but also applies to the time drift rate.
  • FIG. 4 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 4 , the determining that the received common timing-related information is valid according to the valid time-related information includes:
  • step S401 in response to the valid time-related information being the valid end time, within a period from the start time to the valid end time, it is determined that the received common timing-related information is valid.
  • the valid time-related information may be the valid expiration time, then within the period from the start time to the valid expiration time, the terminal may determine that the received common timing related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information, so as to reduce power consumption, and after the deadline, the cell can broadcast paging to The terminal is notified of the system information update, and the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • the terminal may determine the uplink timing advance according to the received common timing related information.
  • the common timing related information includes the time drift rate
  • the common timing offset and/or the uplink timing advance may be updated according to the time drift rate.
  • FIG. 5 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 5 , the determining that the received common timing-related information is valid according to the valid time-related information includes:
  • step S501 in response to the valid time-related information being the valid duration, it is determined that the received common timing-related information is valid within a period from the start time to the valid duration.
  • the valid time-related information may be a valid duration, then within a period from the start time to the valid duration, the terminal may determine that the received common timing-related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information in order to reduce power consumption, and after the period, the cell can broadcast paging to inform the terminal
  • the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • the terminal may determine the uplink timing advance according to the received common timing related information.
  • the common timing related information includes the time drift rate, before the valid deadline, the common timing offset and/or the uplink timing advance may be updated according to the time drift rate.
  • FIG. 6 is a schematic flowchart of still another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 6 , the determining that the received common timing-related information is valid according to the valid time-related information includes:
  • step S601 in response to the valid time-related information being the valid starting time, it is determined that the received common timing-related information is valid from the valid starting time.
  • the valid time-related information may be the valid start time, and starting from the valid start time, the terminal may determine that the received common timing-related information is valid.
  • the cell can still broadcast paging, and the terminal can determine whether the system information is updated according to the received paging. New public timing related information.
  • the terminal may determine the uplink timing advance according to the received common timing related information from the effective start time to the next time when new common timing related information is acquired from the system information.
  • the common timing related information includes a time drift rate
  • the common timing offset and/or the uplink timing advance may be updated according to the time drift rate.
  • FIG. 7 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 7 , the determining that the received common timing-related information is valid according to the valid time-related information includes:
  • step S701 in response to the valid time-related information being a valid start time and a valid end time, within a period from the valid start time to the valid end time, determine the received common timing-related information efficient.
  • the valid time-related information may be the valid start time and the valid end time, then within the period from the valid start time to the valid end time, the terminal may determine that the received common timing-related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information in order to reduce power consumption, and after the period, the cell can broadcast paging to inform the terminal
  • the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • the terminal may determine the uplink timing advance according to the received common timing related information.
  • the common timing related information includes the time drift rate, before the valid deadline, the common timing offset and/or the uplink timing advance may be updated according to the time drift rate.
  • FIG. 8 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time, and the method further includes:
  • step S801 the system frame number corresponding to the valid start time and/or the valid end time is determined according to the first indication information sent by the cell.
  • the cell may indicate the system frame number through the first indication information, so that the terminal determines the valid start time and/or the valid end time, that is, the indicated system frame number is the valid start time and/or the valid end time time, wherein the system frame number (SFN, System Frame Number) can be a single system frame number, or a combination of a high-order system frame number Hyper SFN and a low-order system frame number.
  • the cell needs to continuously broadcast the current system frame number.
  • FIG. 9 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time, and the method further includes:
  • step S901 an offset value of the valid start time and/or the valid end time relative to the time when the common timing related information is received is determined according to the second indication information sent by the cell.
  • the cell may indicate the offset through the second indication information, so that the terminal determines the effective start time and/or the effective end time, and the indicated offset is relative to the time when the common timing related information is received offset.
  • the time at which the public timing-related information is received may be the same as the limitation on the start time in the foregoing embodiment, and details are not described herein again.
  • FIG. 10 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 10 , the determining that the received common timing-related information is valid according to the valid time-related information includes:
  • step S1001 in response to the valid deadline in the public timing-related information being the end time of the system information modification period corresponding to the time when the public timing-related information was received, before the valid deadline, it is determined that the received Public timing related information is valid.
  • the public timing-related information may include a valid deadline
  • the valid deadline may be the end time of the system information modification period corresponding to the time when the terminal receives the public timing-related information.
  • the valid deadline it can be determined that the To the public timing related information is valid.
  • the cell does not need to broadcast the specific effective deadline, but only needs to inform the terminal that the public timing related information is the effective deadline, and the terminal can automatically send the system corresponding to the time when the public timing related information is received.
  • the end time of the information modification period is taken as the effective expiration time, and accordingly, it is beneficial to reduce the information amount of the public timing related information broadcast by the cell.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information, so as to reduce power consumption, and after the deadline, the cell can broadcast paging to The terminal is notified of the system information update, and the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • the terminal Before the effective deadline, the terminal can determine the uplink timing advance according to the received common timing related information.
  • the common timing related information includes the time drift rate
  • the common timing offset and/or the uplink timing advance may be updated according to the time drift rate.
  • FIG. 11 is a schematic flowchart of yet another method for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the time drift rate includes a first drift rate and a second drift rate
  • the uplink timing advance is also calculated based on the specific timing advance of the terminal
  • the uplink timing is determined according to the common timing related information Advances include:
  • step S1101 update the specific timing advance of the terminal according to the first drift rate
  • step S1102 the uplink timing advance is determined according to the updated specific timing advance of the terminal, the common timing related information and the second time drift rate.
  • the time drift rate may include two parts: a first drift rate R1 and a second drift rate R2.
  • the first drift rate is applicable to a specific timing advance
  • the second drift rate is applicable to a common time drift rate or a common timing advance.
  • FIG. 12 is a schematic flowchart of still another method for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in FIG. 12 , the uplink timing advance is also calculated based on the specific timing advance of the terminal, and the determining of the uplink timing advance according to the common timing related information includes:
  • step S1201 update the specific timing advance of the terminal according to the time drift rate
  • step S1202 the uplink timing advance is determined according to the updated specific timing advance of the terminal, the common timing related information and the time drift rate.
  • the time drift rate R may apply to both the specific timing advance and the common time drift rate or common timing advance.
  • the common timing offset X 0 of the start time and the duration t from the start time to the update time can be determined first, then the time can be determined according to the time
  • FIG. 13 is a schematic flowchart of a method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • the method for broadcasting public timing-related information shown in this embodiment may be applicable to a cell, for example, to a network side device corresponding to a cell. Including but not limited to 4G base stations, 5G base stations, and 6G base stations.
  • the base station may communicate with a terminal that is a user equipment, and the terminal includes but is not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may be a terminal to which the method for determining an uplink timing advance described in any of the foregoing embodiments is applicable.
  • the terminal and the base station may be located on the ground, and the terminal may communicate with the base station through air equipment, for example, the base station sends information to the air equipment first, and then the air equipment sends the information to the terminal.
  • the aerial devices include, but are not limited to, satellites, drones, aerial platforms, etc., and the aerial devices can move in the air.
  • the method for broadcasting public timing related information may include the following steps:
  • step S1301 common timing related information is broadcast, wherein the common timing related information is used by the terminals in the cell to determine the uplink timing advance.
  • the cell can broadcast common timing related information, and when the terminal is within the signal coverage of the cell, it can receive the common timing related information broadcast by the cell, and then the terminal can determine the uplink timing advance according to the common timing related information.
  • the public timing related information broadcast by the cell may be determined by the base station corresponding to the cell as required, which is not limited in this embodiment of the present disclosure.
  • the common timing-related information includes at least one of the following:
  • the common timing offset is obtained at least according to the common timing offset, and the common timing offset may refer to the round trip delay (Round Trip Time, RTT) between the base station and the ground reference point, such as the time between the air equipment and the ground reference point.
  • RTT Round Trip Time
  • the distance is d0
  • the distance from the air device to the base station is d0_F
  • the signal propagation speed is equal to the speed of light c
  • the common timing offset is equal to 2*(d0+d0_F)/c
  • the common timing offset is at least based on 2*(d0+d0_F) /c get.
  • the cell does not need to indicate all the uplink timing advance, but only needs to indicate the common timing related information, and the common timing related information will not be greater than the uplink timing advance, so it is beneficial to reduce the amount of indicated information.
  • the terminal may determine the uplink timing advance TA according to the following formula:
  • X is the common timing offset
  • N TA is obtained based on the specific timing advance of the terminal UE specific TA
  • N TA,offset is the TA offset defined in 3GPP TS38.213 section 4.2
  • T c is 3GPP TS38.211 section Values as defined in 4.1.
  • the terminal may perform uplink synchronization according to the uplink timing advance when sending uplink information. For example, when performing random access, the transmission random The first message Msg1/MsgA accessed is pre-compensated.
  • the common timing offset broadcast by the cell may include two parts, one part is the common timing offset that needs to be compensated by the terminal, such as X 1 , and the other part is compensated by the network (such as satellite, base station)
  • the common timing offset of for example, referred to as X 2
  • the terminal can determine the uplink timing advance according to the above embodiment according to the common timing offset X 1 in which the terminal needs to be compensated.
  • the cell can also broadcast the sum of X 1 and X 2 , and one of X 1 and X 2 , then the other of X 1 and X 2 can be obtained by the terminal through subtraction.
  • the common timing related information may be carried in the system information broadcast by the cell, for example, may be carried in the system information block SIB1 or other system information.
  • the cell can notify the terminal whether the system information is updated through broadcast paging, and the terminal can obtain the updated and updated public timing related information from the system information when the terminal determines that the system information is updated according to the paging. In the case where it is determined according to the paging information that the system information has not been updated, it may not be necessary to acquire the system information, so as to reduce the power consumption of the terminal.
  • the terminal when the common timing related information is carried in other system information, when the terminal determines the system information update according to paging, it can further determine whether it is carried in other system information according to a preset field in SIB1, such as valueTag in si-SchedulingInfo Whether the public timing-related information in the system information is updated, if the public timing-related information in other system information is not updated, the valueTag can remain unchanged, and when the public timing-related information in other system information is updated, the valueTag can be Change.
  • SIB1 a preset field in SIB1
  • FIG. 14 is a schematic flowchart of another method for broadcasting public timing related information according to an embodiment of the present disclosure. As shown in Figure 14, the method further includes:
  • step S1401 the effective time related information of the common timing related information is broadcast.
  • the public timing-related information may have a certain timeliness, and the specific valid time-related information about the timeliness may be broadcast by the cell, and then the terminal can determine whether the received public timing-related information is valid according to the valid time-related information. .
  • the received common timing related information in the case that the received common timing related information is determined to be valid according to the valid time related information, it may not be necessary to acquire system information carrying the common timing related information, so as to reduce power consumption.
  • the cell can also update the public timing related information as needed, and notify the terminal of the change in system information through paging. In this case, even if the terminal determines that the received The public timing-related information is valid, but system information still needs to be received to obtain updated public timing-related information.
  • the common timing-related information may include a common timing offset and a time drift rate
  • the valid time-related information may be applicable only to the common timing offset, or only to the time drift rate, or both. The amount of shift, but also applies to the time drift rate.
  • FIG. 15 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid expiration time
  • the method further includes:
  • step S1501 after the deadline, broadcast paging in response to the update of the system information carrying the common timing related information.
  • the valid time-related information may be the valid expiration time, then within the period from the start time to the valid expiration time, it may be determined that the broadcasted public timing related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information, so as to reduce power consumption, and after the deadline, the cell can broadcast paging to The terminal is notified of the system information update, and the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • FIG. 16 is a schematic flowchart of yet another method for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid duration
  • the method further includes:
  • step S1601 after lasting the effective duration from the start time, the paging is broadcast in response to the system information update carrying the common timing related information.
  • the valid time-related information may be a valid duration, then within a period from the start time to the valid duration, it may be determined that the broadcasted common timing-related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information in order to reduce power consumption, and after the period, the cell can broadcast paging to inform the terminal
  • the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • FIG. 17 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid start time
  • the method further includes:
  • step S1701 starting from the effective start time, in response to the update of the system information carrying the common timing related information, broadcast paging.
  • the valid time-related information may be the valid start time, and starting from the valid start time, it may be determined that the broadcasted public timing-related information is valid.
  • the cell can still broadcast paging, and the terminal can determine whether the system information is updated according to the received paging. New public timing related information.
  • FIG. 18 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid start time and the valid end time, and the method further includes:
  • step S1801 after the valid expiration time, in response to the system information update carrying the common timing related information, broadcast paging.
  • the valid time-related information may be the valid start time and the valid end time, then within the period from the valid start time to the valid end time, it may be determined that the broadcasted public timing-related information is valid.
  • the cell does not need to broadcast paging to inform the terminal of system information update, and the terminal does not need to obtain system information carrying common timing related information in order to reduce power consumption, and after the period, the cell can broadcast paging to inform the terminal
  • the terminal can obtain the system information carrying the public timing related information, so as to determine the new public timing related information.
  • FIG. 19 is a schematic flowchart of yet another method for broadcasting common timing related information according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time
  • the method further includes:
  • step S1901 first indication information is sent to indicate the system frame number corresponding to the valid start time and/or the valid end time.
  • the cell may indicate the system frame number through the first indication information, so that the terminal determines the valid start time and/or the valid end time, that is, the indicated system frame number is the valid start time and/or the valid end time time, wherein the system frame number may be a single system frame number, or may be a combination of a high-order system frame number Hyper SFN and a low-order system frame number.
  • the cell needs to continuously broadcast the current system frame number.
  • FIG. 20 is a schematic flowchart of yet another method for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time, and the method further includes:
  • step S2001 second indication information is sent to indicate the offset value of the valid start time and/or the valid end time relative to the time when the common timing related information is received.
  • the cell may indicate the offset through the second indication information, so that the terminal determines the effective start time and/or the effective end time, and the indicated offset is relative to the time when the common timing related information is received offset.
  • the time at which the public timing-related information is received may be the same as the limitation on the start time in the foregoing embodiment, and details are not described herein again.
  • the present disclosure also provides embodiments of an uplink timing advance determination apparatus and a common timing related information broadcasting apparatus.
  • FIG. 21 is a schematic block diagram of an apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the apparatus for determining the uplink timing advance shown in this embodiment may be applicable to terminals, and the terminals include but are not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may communicate with a base station as a user equipment, and the base station includes but is not limited to a 4G base station, a 5G base station, and a 6G base station.
  • the base station may be a base station to which the apparatus for broadcasting public timing-related information described in any subsequent embodiment is applicable.
  • the terminal and the base station may be located on the ground, and the terminal may communicate with the base station through air equipment, for example, the base station sends information to the air equipment first, and then the air equipment sends the information to the terminal.
  • the aerial devices include, but are not limited to, satellites, drones, aerial platforms, etc., and the aerial devices can move in the air.
  • the cell described in the following embodiments may refer to the signal coverage area of the over-the-air equipment.
  • the base station may send the information to the over-the-air equipment, and the over-the-air equipment may send the information to the terminals in the cell.
  • the transmission method may be broadcast or Unicast.
  • the apparatus for determining the uplink timing advance may include:
  • Timing information receiving module 2101 configured to receive public timing related information broadcast by cells
  • the timing advance determination module 2102 is configured to determine an uplink timing advance amount according to the common timing related information.
  • the common timing-related information includes at least one of the following:
  • the timing advance determination module is configured to update the common timing according to the common timing offset of the starting time, the time drift rate, and the duration from the starting time to the timing advance update moment Offset; determine the uplink timing advance according to the updated common timing offset.
  • the start time is at least one of the following:
  • the time drift rate includes a first drift rate and a second drift rate
  • the uplink timing advance is further calculated based on a specific timing advance of the terminal
  • the timing advance determination module is configured to The specific timing advance of the terminal is updated by the first drift rate; the uplink timing advance is determined according to the updated specific timing advance of the terminal, the common timing related information and the second time drift rate.
  • the uplink timing advance is further calculated based on the specific timing advance of the terminal, and the timing advance determination module is configured to update the specific timing advance of the terminal according to the time drift rate; according to the update The specific timing advance of the terminal, the common timing-related information, and the time drift rate determine the uplink timing advance.
  • FIG. 22 is a schematic block diagram of another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure. As shown in Figure 22, the device further includes:
  • an effective receiving module 2201 configured to receive the effective time related information of the public timing related information broadcast by the cell;
  • the validity determining module 2202 is configured to determine that the received common timing-related information is valid according to the valid time-related information.
  • the validity determination module is configured to, in response to the validity time-related information being a valid end time, determine that a common timing correlation has been received within a period from a start time to the valid end time Information is valid.
  • the validity determination module is configured to, in response to the validity time-related information being a valid duration, determine that a common timing correlation has been received within a period lasting the valid duration from a start time Information is valid.
  • the validity determination module is configured to, in response to the validity time-related information being a valid start time, determine that the received common timing-related information is valid from the valid start time.
  • the validity determination module is configured to, in response to the validity time-related information being a valid start time and a valid end time, within a period from the valid start time to the valid end time , to determine that the received public timing-related information is valid.
  • FIG. 23 is a schematic block diagram of another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time
  • the device also includes:
  • the frame number determination module 2301 is configured to determine the system frame number corresponding to the valid start time and/or the valid end time according to the first indication information sent by the cell.
  • FIG. 24 is a schematic block diagram of yet another apparatus for determining an uplink timing advance according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time
  • the apparatus further includes:
  • the offset determination module 2401 is configured to determine, according to the second indication information sent by the cell, an offset value of the valid start time and/or the valid end time relative to the time when the common timing related information is received.
  • the validity determining module is configured to, in response to the valid expiration time in the common timing related information being the end time of the system information modification period corresponding to the time when the common timing related information is received, in the Before the valid expiration time, it is determined that the received common timing-related information is valid.
  • FIG. 25 is a schematic block diagram of an apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the method for broadcasting public timing-related information shown in this embodiment may be applicable to a cell, for example, to a network side device corresponding to a cell. Including but not limited to 4G base stations, 5G base stations, and 6G base stations.
  • the base station may communicate with a terminal that is a user equipment, and the terminal includes but is not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the terminal may be a terminal to which the apparatus for determining an uplink timing advance in any of the foregoing embodiments is applicable.
  • the terminal and the base station may be located on the ground, and the terminal may communicate with the base station through air equipment, for example, the base station sends information to the air equipment first, and then the air equipment sends the information to the terminal.
  • the aerial devices include, but are not limited to, satellites, drones, aerial platforms, etc., and the aerial devices can move in the air.
  • the public timing related information broadcasting apparatus may include:
  • the timing broadcasting module 2501 is configured to broadcast common timing-related information, wherein the common timing-related information is used for the terminal in the cell to determine the uplink timing advance.
  • the common timing-related information includes at least one of the following:
  • FIG. 26 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure. As shown in Figure 26, the device further includes:
  • the valid broadcasting module 2601 is configured to broadcast valid time related information of the common timing related information.
  • FIG. 27 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid expiration time
  • the device further includes:
  • the first paging broadcasting module 2701 is configured to, after the deadline, broadcast paging in response to the system information update carrying the common timing related information.
  • FIG. 28 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time related information is the valid duration
  • the device further includes:
  • the second paging broadcast module 2801 is configured to broadcast a paging in response to the system information update carrying the common timing related information after the valid duration is continued from the start time.
  • FIG. 29 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information is the valid start time
  • the device further includes:
  • the third paging broadcast module 2901 is configured to broadcast paging from the effective start time in response to the system information update carrying the common timing related information.
  • FIG. 30 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time related information is the valid start time and the valid end time
  • the device further includes:
  • the fourth paging broadcasting module 3001 is configured to broadcast paging in response to the system information update carrying the common timing related information after the valid expiration time.
  • FIG. 31 is a schematic block diagram of another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time
  • the apparatus further includes:
  • the frame number indication module 3101 is configured to send first indication information to indicate the system frame number corresponding to the valid start time and/or the valid end time.
  • FIG. 32 is a schematic block diagram of yet another apparatus for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the valid time-related information includes a valid start time and/or a valid end time
  • the apparatus further includes:
  • the offset indication module 3201 is configured to send second indication information to indicate the offset value of the valid start time and/or the valid end time relative to the time when the common timing related information is received.
  • Embodiments of the present disclosure also provide an electronic device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the method for determining an uplink timing advance according to any of the foregoing embodiments, and/or the method for broadcasting common timing-related information according to any of the foregoing embodiments.
  • Embodiments of the present disclosure further provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the uplink timing advance determination method described in any of the foregoing embodiments, and/or any of the foregoing Steps in the method for broadcasting public timing related information according to an embodiment.
  • FIG. 33 is a schematic block diagram of an apparatus 3300 for broadcasting public timing related information according to an embodiment of the present disclosure.
  • the apparatus 3300 may be provided as a base station.
  • apparatus 3300 includes a processing component 3322, a wireless transmit/receive component 3324, an antenna component 3326, and a signal processing portion specific to a wireless interface, which may further include one or more processors.
  • One of the processors in the processing component 3322 may be configured to implement the public timing-related information broadcasting method described in any of the foregoing embodiments.
  • FIG. 34 is a schematic block diagram of an apparatus 3400 for determining uplink timing advance according to an embodiment of the present disclosure.
  • apparatus 3400 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, or the like.
  • an apparatus 3400 may include one or more of the following components: a processing component 3402, a memory 3404, a power supply component 3406, a multimedia component 3408, an audio component 3410, an input/output (I/O) interface 3412, a sensor component 3414, and communication component 3416.
  • the processing component 3402 generally controls the overall operation of the device 3400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 3402 may include one or more processors 3420 to execute the instructions to complete all or part of the steps of the above-mentioned uplink timing advance determination method.
  • processing component 3402 may include one or more modules that facilitate interaction between processing component 3402 and other components.
  • processing component 3402 may include a multimedia module to facilitate interaction between multimedia component 3408 and processing component 3402.
  • Memory 3404 is configured to store various types of data to support operations at device 3400 . Examples of such data include instructions for any application or method operating on the device 3400, contact data, phonebook data, messages, pictures, videos, and the like. Memory 3404 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable programmable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable programmable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • Power component 3406 provides power to various components of device 3400.
  • Power supply components 3406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 3400.
  • Multimedia component 3408 includes a screen that provides an output interface between the device 3400 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 3408 includes a front-facing camera and/or a rear-facing camera. When the apparatus 3400 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 3410 is configured to output and/or input audio signals.
  • audio component 3410 includes a microphone (MIC) that is configured to receive external audio signals when device 3400 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 3404 or transmitted via communication component 3416.
  • audio component 3410 also includes a speaker for outputting audio signals.
  • the I/O interface 3412 provides an interface between the processing component 3402 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 3414 includes one or more sensors for providing status assessment of various aspects of device 3400.
  • the sensor assembly 3414 can detect the open/closed state of the device 3400, the relative positioning of components, such as the display and keypad of the device 3400, the sensor assembly 3414 can also detect a change in the position of the device 3400 or a component of the device 3400 , the presence or absence of user contact with the device 3400 , the device 3400 orientation or acceleration/deceleration and the temperature change of the device 3400 .
  • Sensor assembly 3414 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 3414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 3414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 3416 is configured to facilitate wired or wireless communication between apparatus 3400 and other devices.
  • Device 3400 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof.
  • the communication component 3416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3416 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 3400 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are implemented to implement the above method for determining the uplink timing advance.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller a controller
  • microcontroller a microcontroller
  • microprocessor or other electronic components are implemented to implement the above method for determining the uplink timing advance.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 3404 including instructions, and the above-mentioned instructions can be executed by the processor 3420 of the apparatus 3400 to complete the above-mentioned uplink timing advance determination method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

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Abstract

本公开涉及上行定时提前量确定方法，适用于终端，所述方法包括：接收小区广播的公共定时相关信息；根据所述公共定时相关信息确定上行定时提前量。根据本公开，小区可以不必指示全部的上行定时提前量，而只需指示公共定时相关信息，而公共定时相关信息不会大于上行定时提前量，因此有利于减少指示的信息量。另外。通过广播公共定时相关信息的有效时间相关信息，终端在根据有效时间相关信息确定已接收的公共定时相关信息有效的情况下，可以不必获取携带公共定时相关信息的系统信息，从而即使公共时间偏移量变化，小区也不必不断地通知终端改变后的公共时间偏移量，有利于减少信令开销，降低终端的功耗。

Description

上行定时提前量确定、公共定时相关信息广播方法和装置 技术领域
本公开涉及通信技术领域，具体而言，涉及上行定时提前量确定方法、公共定时相关信息广播方法、上行定时提前量确定装置、公共定时相关信息广播装置、电子设备和计算机可读存储介质。
背景技术
为了使得终端能够进行上行同步，基站可以向终端指示定时提前量(Timing Advance)，终端根据基站指示的定时提前量来获取上行同步，但是基站所能指示的定时提前量的大小是有限的，目前最大不能超过2毫秒。
但是在非地面网络(Non-Terrestrial Networks，简称NTN)中，终端与地面基站之间通过卫星通信，由于卫星位于空中，信号从地面传输至卫星，再由卫星传输至地面所需的时间较长，因此会产生较大的时延，最大时延可以达到500毫秒以上，这远远大于基站所能指示的定时提前量。
发明内容
有鉴于此，本公开的实施例提出了上行定时提前量确定方法、公共定时相关信息广播方法、上行定时提前量确定装置、公共定时相关信息广播装置、电子设备和计算机可读存储介质，以解决相关技术中的技术问题。
根据本公开实施例的第一方面，提出一种上行定时提前量确定方法，适用于终端，所述方法包括：
接收小区广播的公共定时相关信息；
根据所述公共定时相关信息确定上行定时提前量。
根据本公开实施例的第二方面，提出一种公共定时相关信息广播方法，适用于小区，所述方法包括：
广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定上行定时提前量。
根据本公开实施例的第三方面，提出一种上行定时提前量确定装置，适用于终端，所述装置包括：
定时信息接收模块，被配置为接收小区广播的公共定时相关信息；
定时提前确定模块，被配置为根据所述公共定时相关信息确定上行定时提前量。
根据本公开实施例的第四方面，提出一种公共定时相关信息广播装置，适用于小区，所述装置包括：
定时广播模块，被配置为广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定上行定时提前量。
根据本公开实施例的第五方面，提出一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行上述上行定时提前量确定方法，和/或上述公共定时相关信息广播方法。
根据本公开实施例的第六方面，提出一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述上行定时提前量确定方法，和/或上述公共定时相关信息广播方法中的步骤。
根据本公开的实施例，小区可以不必指示全部的上行定时提前量，而只需指示公共定时相关信息，而公共定时相关信息不会大于上行定时提前量，因此有利于减少指示的信息量。
另外，通过广播公共定时相关信息的有效时间相关信息，终端在根据有效时间相关信息确定已接收的公共定时相关信息有效的情况下，可以不必获取携带公共定时相关信息的系统信息，从而即使公共时间偏移量变化，小区也不必不断地通知终端改变后的公共时间偏移量，有利于减少信令开销，降低终端的功耗。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施 例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是根据本公开的实施例示出的一种上行定时提前量确定方法的示意流程图。
图2是根据本公开的实施例示出的另一种上行定时提前量确定方法的示意流程图。
图3是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图4是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图5是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图6是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图7是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图8是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图9是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图10是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图11是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图12是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。
图13是根据本公开的实施例示出的一种公共定时相关信息广播方法的示意流程图。
图14是根据本公开的实施例示出的另一种公共定时相关信息广播方法的示意流程图。
图15是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图16是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图17是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图18是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图19是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图20是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。
图21是根据本公开的实施例示出的一种上行定时提前量确定装置的示意框图。
图22是根据本公开的实施例示出的另一种上行定时提前量确定装置的示意框图。
图23是根据本公开的实施例示出的又一种上行定时提前量确定装置的示意框图。
图24是根据本公开的实施例示出的又一种上行定时提前量确定装置的示意框图。
图25是根据本公开的实施例示出的一种公共定时相关信息广播装置的示意框图。
图26是根据本公开的实施例示出的另一种公共定时相关信息广播装置的示意框图。
图27是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图28是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图29是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图30是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图31是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图32是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。
图33是根据本公开的实施例示出的一种用于公共定时相关信息广播的装置的示意框图。
图34是根据本公开的实施例示出的一种用于上行定时提前量确定的装置的示意框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
图1是根据本公开的实施例示出的一种上行定时提前量确定方法的示意流程图。本实施例所示的上行定时提前量确定方法可以适用于终端，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。所述终端可以作为用户设备与基站通信，所述基站包括但不限于4G基站、5G基站、6G基站。在一个实施例中，所述基站可以是后续任一实施例所述的公共定时相关信息广播方法所适用的基站。
在一个实施例中，终端和基站可以在非地面网络中通信，终端和基站可以位于地面，终端可以与基站通过空中设备通信，例如基站将信息先发送给空中设备，再由空中设备发送给终端。所述空中设备包括但不限于卫星、无人机、空中平台等，所述 空中设备可以在空中运动。
以下实施例中所述的小区，可以是指空中设备的信号覆盖区域，基站可以将信息发送给空中设备，由空中设备发送给该小区中的终端，其中，发送方式可以是广播，也可以是单播。
如图1所示，所述上行定时提前量确定方法可以包括以下步骤：
在步骤S101中，接收小区广播的公共定时相关信息；
在步骤S102中，根据所述公共定时相关信息确定上行定时提前量。
在一个实施例中，小区可以广播公共定时相关信息，当终端在小区的信号覆盖范围内时，可以接收到小区广播的公共定时相关信息，进而终端可以根据公共定时相关信息确定上行定时提前量。其中，小区广播的公共定时相关信息可以由小区对应的基站根据需要确定，本公开实施例不作限制。
在一个实施例中，所述公共定时相关信息包括以下至少之一：
公共定时偏移量、时间漂移率。
其中，公共定时偏移量至少根据公共定时偏移得到，公共定时偏移可以是指基站到地面参考点之间的往返时延(Round Trip Time，简称RTT)，例如空中设备到地面参考点的距离为d0，空中设备到基站的距离为d0_F，信号传播速度等于光速c，那么公共定时偏移等于2*(d0+d0_F)/c，公共定时偏移量至少根据2*(d0+d0_F)/c得到。
根据本公开的实施例，小区可以不必指示全部的上行定时提前量，而只需指示公共定时相关信息，而公共定时相关信息不会大于上行定时提前量，因此有利于减少指示的信息量。
在一个实施例中，以公共定时相关信息包括公共定时偏移量X为例，终端可以根据下式确定上行定时提前量TA：
TA＝(N TA+N TA,offset[+X])×T c[+X]；
其中，X为公共定时偏移量，N TA基于终端的特定定时提前量UE specific TA得到，N TA,offset为TA偏移值，可以是已知定义值，T c为已知定义值。
需要说明的是，上式中X只出现一次，例如出现在小括号内，那么就是(N TA+N TA,offset+X)×T c，在这种情况下X可以是无单位量，例如出现在式子末尾，那么 就是TA＝(N TA+N TA,offset)×T c+X，在这种情况下，X的单位可以是时间单位，例如毫秒、秒、帧等。
在一个实施例中，在确定上行定时提前量后，终端在发送上行信息时，可以根据上行定时提前量进行上行同步，例如在进行随机接入时，可以通过确定的上行定时提前量对发送随机接入的第一条消息Msg1/MsgA进行预补偿。
在一个实施例中，小区广播的公共定时偏移量，可以包括两部分，一部分是需要终端补偿的公共定时偏移量，例如称作X 1，另一部分是由网络(例如卫星、基站)补偿的公共定时偏移量，例如称作X 2，终端可以根据其中需要终端补偿的公共定时偏移量X 1来按照上述实施例确定上行定时提前量。另外，小区也可以广播X 1与X 2之和，以及X 1和X 2中的一个，那么X 1和X 2中的另一个，可以由终端做减法得到。
在一个实施例中，公共定时相关信息可以携带在小区广播的系统信息中，例如可以携带在系统信息块SIB1或其他系统信息中。
小区可以通过广播寻呼(paging)来告知终端系统信息是否更新，终端在根据寻呼确定系统信息更新的情况下，可以从系统信息中获取更新更新后的公共定时相关信息。而在根据寻呼信息确定系统信息未更新的情况下，可以不必获取系统信息，以便减少终端的功耗。
其中，在公共定时相关信息携带在其他系统信息中时，终端在根据寻呼确定系统信息更新的情况下，可以进一步根据SIB1中的预设字段，例如si-SchedulingInfo中的valueTag，确定携带在其他系统信息中的公共定时相关信息是否更新，在其他系统信息中的公共定时相关信息未更新的情况下，valueTag可以保持不变，在其他系统信息中的公共定时相关信息更新的情况下，valueTag可以改变。
图2是根据本公开的实施例示出的另一种上行定时提前量确定方法的示意流程图。如图2所示，所述根据所述公共定时相关信息确定上行定时提前量包括：
在步骤S201中，根据起始时间的公共定时偏移量、所述时间漂移率、从所述起始时间到定时提前量更新时刻的时长更新公共定时偏移量；
在步骤S202中，根据更新后的公共定时偏移量确定上行定时提前量。
在一个实施例中，公共定时相关信息除了可以包括公共定时偏移量，还可以包括时间漂移率，其中，时间漂移率是指公共定时偏移量单位时间内的变化量，也可以是指上行定时提前量单位时间内的变化量。
以时间漂移率是公共定时偏移量单位时间内的变化量为例，可以先确定起始时间的公共定时偏移量X 0，以及从起始时间到更新时刻的时长t，那么可以根据时间漂移率R更新X 0，得到更新后的公共定时偏移量X＝X 0+t×R，进而可以根据更新后的公共定时偏移量确定上行定时提前量。
以时间漂移率是上行定时提前量单位时间内的变化量为例，可以先确定起始时间的公共定时偏移量TA 0，以及从起始时间到更新时刻的时长t，那么可以根据时间漂移率R更新TA 0，得到更新后的公共定时偏移量TA＝TA 0+t×R。
需要说明的是，更新时刻可以是周期性的，具体的周期可以由网络指示、或者由终端预先存储；更新时刻也可以是非周期性的，那么可以由网络指示具体的更新时刻，或者根据更新偏移量确定更新时刻，例如起始时间加上更新偏移量等于更新时刻，更新偏移量可以由网络指示、或者由终端预先存储。
在一个实施例中，上述单位时间包括但不限于以下至少之一：
帧、子帧、时隙、秒、毫秒、系统信息修改周期。
在一个实施例中，所述起始时间为以下至少之一：
接收所述公共定时相关信息的时间所在系统信息窗口的边界，例如系统信息窗口的起始边界、系统信息窗口的结束边界；
接收所述公共定时相关信息的时间之前或之后最近的系统帧号边界，例如系统帧号的起始边界、系统帧号的结束边界；
接收所述公共定时相关信息的时间之前或之后的系统信息块SIB1的发送周期边界，例如发送周期的起始边界、发送周期的结束边界，其中，系统信息块SIB1用于携带所述公共定时相关信息。
需要说明的是，有关起始时间的限定，可以适用于本公开所有实施例中的起始时间。
由于在卫星等空中设备一般是处于高速运动中的，公共时间偏移量会随着空中设备的运动而不断改变，如果不断地通知终端改变后的公共时间偏移量，将会造成大量的信令开销，并且提供终端的功耗，针对该问题，以下实施例提出有关有效时间相关信息的内容。
图3是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程 图。如图3所示，所述方法还包括：
在步骤S301中，接收小区广播的所述公共定时相关信息的有效时间相关信息；
在步骤S302中，根据所述有效时间相关信息确定已接收的公共定时相关信息有效。
在一个实施例中，公共定时相关信息可以存在一定时效性，而有关时效性的具体有效时间相关信息，可以由小区广播，进而终端可以根据有效时间相关信息确定已接收的公共定时相关信息是否有效。
在一个实施例中，在根据有效时间相关信息确定已接收的公共定时相关信息有效的情况下，可以不必获取携带公共定时相关信息的系统信息，以便减少功耗。
据此，即使公共时间偏移量变化，小区也不必不断地通知终端改变后的公共时间偏移量，有利于减少信令开销，降低终端的功耗。
需要说明的是，在公共定时相关信息的有效时间范围内，小区也可以根据需要更新公共定时相关信息，并通过寻呼告知终端系统信息发生变更，在这种情况下，即使终端确定已接收的公共定时相关信息有效，仍然需要接收系统信息，以获取更新的公共定时相关信息。
另外，公共定时相关信息可以包括公共定时偏移量和时间漂移率，有效时间相关信息可以是仅适用于公共定时偏移量，也可以仅适用于时间漂移率，还可以既适用于公共定时偏移量，又适用于时间漂移率。
图4是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图4所示，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
在步骤S401中，响应于所述有效时间相关信息为有效截止时刻，在从起始时间到所述有效截止时刻的时段内，确定已接收到公共定时相关信息有效。
在一个实施例中，有效时间相关信息可以是有效截止时刻，那么在从起始时间到所述有效截止时刻的时段内，终端可以确定已接收到公共定时相关信息有效。
在有效截止时刻之前，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在截止时间之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信 息的系统信息，以便确定新的公共定时相关信息。
在有效截止时刻之前，终端可以根据已接收到的公共定时相关信息确定上行定时提前量。在公共定时相关信息包括时间漂移率的情况下，在有效截止时刻之前，可以根据时间漂移率更新公共定时偏移量和/或上行定时提前量。
图5是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图5所示，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
在步骤S501中，响应于所述有效时间相关信息为有效持续时长，在从起始时间持续所述有效持续时长的时段内，确定已接收到公共定时相关信息有效。
在一个实施例中，有效时间相关信息可以是有效持续时长，那么在从起始时间持续有效持续时长的时段内，终端可以确定已接收到公共定时相关信息有效。
在该时段内，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在时段之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
在从起始时间持续有效持续时长的时段内，终端可以根据已接收到的公共定时相关信息确定上行定时提前量。在公共定时相关信息包括时间漂移率的情况下，在有效截止时刻之前，可以根据时间漂移率更新公共定时偏移量和/或上行定时提前量。
图6是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图6所示，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
在步骤S601中，响应于所述有效时间相关信息为有效起始时刻，从所述有效起始时刻开始，确定已接收到公共定时相关信息有效。
在一个实施例中，有效时间相关信息可以是有效起始时刻，那么在从有效起始时刻开始，终端可以确定已接收到公共定时相关信息有效。
从有效起始时刻开始，小区仍然可以广播寻呼，终端可以根据接收到的寻呼确定系统信息是否更新，在确定系统信息更新的情况下，可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
在从有效起始时刻开始到下一次从系统信息中获取新的公共定时相关信息之前，终端可以根据已接收到的公共定时相关信息确定上行定时提前量。在公共定时相关信息包括时间漂移率的情况下，可以根据时间漂移率更新公共定时偏移量和/或上行定时提前量。
图7是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图7所示，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
在步骤S701中，响应于所述有效时间相关信息为有效起始时刻和有效截止时刻，在从所述有效起始时刻到所述有效截止时刻的时段内，确定已接收到的公共定时相关信息有效。
在一个实施例中，有效时间相关信息可以是有效起始时刻和有效截止时刻，那么在从有效起始时刻到有效截止时刻时段内，终端可以确定已接收到公共定时相关信息有效。
在该时段内，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在时段之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
在从有效起始时刻到有效截止时刻时段内，终端可以根据已接收到的公共定时相关信息确定上行定时提前量。在公共定时相关信息包括时间漂移率的情况下，在有效截止时刻之前，可以根据时间漂移率更新公共定时偏移量和/或上行定时提前量。
图8是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图8所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
在步骤S801中，根据小区发送的第一指示信息确定所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
在一个实施例中，小区可以通过第一指示信息指示系统帧号，使得终端确定有效起始时刻和/或有效截止时刻，也即所指示的系统帧号即有效起始时刻和/或有效截止时刻，其中，系统帧号(SFN，System Frame Number)可以是单一的系统帧号，也可以是高位系统帧号Hyper SFN和低位系统帧号的组合。在通过该方式指示有效起始时 刻和/或有效截止时刻的情况下，需要小区持续广播当前的系统帧号。
图9是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图9所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
在步骤S901中，根据小区发送的第二指示信息确定所述有效起始时刻和/或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
在一个实施例中，小区可以通过第二指示信息指示偏移量，使得终端确定有效起始时刻和/或有效截止时刻，所指示的偏移量，是相对于接收到公共定时相关信息的时间的偏移量。
其中，接收到公共定时相关信息的时间与上述实施例中有关起始时间的限定可以是相同的，在此不再赘述。
图10是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图10所示，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
在步骤S1001中，响应于所述公共定时相关信息中的有效截止时刻为接收到公共定时相关信息的时间对应的系统信息修改周期的结束时间，在所述有效截止时刻之前，确定已接收到的公共定时相关信息有效。
在一个实施例中，公共定时相关信息可以包括有效截止时刻，有效截止时刻可以是终端接收到公共定时相关信息的时间对应的系统信息修改周期的结束时间，在有效截止时刻之前，可以确定已接收到公共定时相关信息有效。需要说明的是，在这种情况下，小区可以不必广播具体的有效截止时刻，只需告知终端公共定时相关信息是有效截止时刻，终端就能够自动将接收到公共定时相关信息的时间对应的系统信息修改周期的结束时间作为有效截止时刻，据此，有利于减少小区广播公共定时相关信息的信息量。
在有效截止时刻之前，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在截止时间之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
在有效截止时刻之前，终端可以根据已接收到的公共定时相关信息确定上行定 时提前量。在公共定时相关信息包括时间漂移率的情况下，在有效截止时刻之前，可以根据时间漂移率更新公共定时偏移量和/或上行定时提前量。
图11是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图11所示，所述时间漂移率包括第一漂移率和第二漂移率，上行定时提前量还基于所述终端的特定定时提前量计算，所述根据所述公共定时相关信息确定上行定时提前量包括：
在步骤S1101中，根据所述第一漂移率更新所述终端的特定定时提前量；
在步骤S1102中，根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述第二时间漂移率确定上行定时提前量。
在一个实施例中，终端可以根据特定定时提前量来计算上行定时提前量，例如根据式子TA＝(N TA+N TA,offset[+X])×T c[+X]计算。
在这种情况下，时间漂移率可以包括两部分：第一漂移率R1和第二漂移率R2。其中第一漂移率适用于特定定时提前量，第二漂移率适用于公共时间漂移率或公共定时提前量。
那么可以根据第一漂移率先更新特定定时提前量，可以先确定起始时间的公共定时偏移量N TA0，以及从起始时间到更新时刻的时长t，那么可以根据第一漂移率R1更新N TA0，得到更新后的特定定时提前量N TA＝N TA0+t×R1。
以第二漂移率是公共定时偏移量单位时间内的变化量为例，可以先确定起始时间的公共定时偏移量X 0，以及从起始时间到更新时刻的时长t，那么可以根据第二漂移率R2更新X 0，得到更新后的公共定时偏移量X＝X 0+t×R2，进而可以根据更新后的所述终端的特定定时提前量和更新后的公共定时偏移量确定上行定时提前量。
图12是根据本公开的实施例示出的又一种上行定时提前量确定方法的示意流程图。如图12所示，上行定时提前量还基于所述终端的特定定时提前量计算，所述根据所述公共定时相关信息确定上行定时提前量包括：
在步骤S1201中，根据所述时间漂移率更新所述终端的特定定时提前量；
在步骤S1202中，根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述时间漂移率确定上行定时提前量。
在一个实施例中，终端可以根据特定定时提前量来计算上行定时提前量，例如 根据式子TA＝(N TA+N TA,offset[+X])×T c[+X]计算。
在这种情况下，时间漂移率R可以既适用于特定定时提前量，又适用于公共时间漂移率或公共定时提前量。
那么可以根据时间漂移率先更新特定定时提前量，可以先确定起始时间的公共定时偏移量N TA0，以及从起始时间到更新时刻的时长t，那么可以根据时间漂移率R更新N TA0，得到更新后的特定定时提前量N TA＝N TA0+t×R。
以时间漂移率是公共定时偏移量单位时间内的变化量为例，可以先确定起始时间的公共定时偏移量X 0，以及从起始时间到更新时刻的时长t，那么可以根据时间漂移率R更新X 0，得到更新后的公共定时偏移量X＝X 0+t×R，进而可以根据更新后的所述终端的特定定时提前量和更新后的公共定时偏移量确定上行定时提前量。
图13是根据本公开的实施例示出的一种公共定时相关信息广播方法的示意流程图。本实施例所示的公共定时相关信息广播方法可以适用于小区，例如适用于小区对应的网络侧设备，所述网络侧设备包括但不限于是非地面网络中的地面基站、空中设备，所述基站包括但不限于4G基站、5G基站、6G基站。所述基站可以与作为用户设备的终端进行通信，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。在一个实施例中，所述终端可以是上述任一实施例所述上行定时提前量确定方法所适用的终端。
在一个实施例中，终端和基站可以位于地面，终端可以与基站通过空中设备通信，例如基站将信息先发送给空中设备，再由空中设备发送给终端。所述空中设备包括但不限于卫星、无人机、空中平台等，所述空中设备可以在空中运动。
如图13所示，所述公共定时相关信息广播方法可以包括以下步骤：
在步骤S1301中，广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定上行定时提前量。
在一个实施例中，小区可以广播公共定时相关信息，当终端在小区的信号覆盖范围内时，可以接收到小区广播的公共定时相关信息，进而终端可以根据公共定时相关信息确定上行定时提前量。其中，小区广播的公共定时相关信息可以由小区对应的基站根据需要确定，本公开实施例不作限制。
在一个实施例中，所述公共定时相关信息包括以下至少之一：
公共定时偏移量、时间漂移率。
其中，公共定时偏移量至少根据公共定时偏移得到，公共定时偏移可以是指基站到地面参考点之间的往返时延(Round Trip Time，简称RTT)，例如空中设备到地面参考点的距离为d0，空中设备到基站的距离为d0_F，信号传播速度等于光速c，那么公共定时偏移等于2*(d0+d0_F)/c，公共定时偏移量至少根据2*(d0+d0_F)/c得到。
根据本公开的实施例，小区可以不必指示全部的上行定时提前量，而只需指示公共定时相关信息，而公共定时相关信息不会大于上行定时提前量，因此有利于减少指示的信息量。
在一个实施例中，以公共定时相关信息包括公共定时偏移量X为例，终端可以根据下式确定上行定时提前量TA：
TA＝(N TA+N TA,offset[+X])×T c[+X]；
其中，X为公共定时偏移量，N TA基于终端的特定定时提前量UE specific TA得到，N TA,offset为3GPP TS38.213 section 4.2中定义的TA偏移，T c为3GPP TS38.211 section 4.1中定义的值。
需要说明的是，上式中X只出现一次，例如出现在小括号内，那么就是(N TA+N TA,offset+X)×T c，在这种情况下X可以是无单位量，例如出现在式子末尾，那么就是TA＝(N TA+N TA,offset)×T c+X，在这种情况下，X的单位可以是时间单位，例如毫秒、秒、帧等。
在一个实施例中，在确定上行定时提前量后，终端在发送上行信息时，可以根据上行定时提前量进行上行同步，例如在进行随机接入时，可以通过确定的上行定时提前量对发送随机接入的第一条消息Msg1/MsgA进行预补偿。
在一个实施例中，小区广播的公共定时偏移量，可以包括两部分，一部分是需要终端补偿的公共定时偏移量，例如称作X 1，另一部分是由网络(例如卫星、基站)补偿的公共定时偏移量，例如称作X 2，终端可以根据其中需要终端补偿的公共定时偏移量X 1来按照上述实施例确定上行定时提前量。另外，小区也可以广播X 1与X 2之和，以及X 1和X 2中的一个，那么X 1和X 2中的另一个，可以由终端做减法得到。
在一个实施例中，公共定时相关信息可以携带在小区广播的系统信息中，例如可以携带在系统信息块SIB1或其他系统信息中。
小区可以通过广播寻呼(paging)来告知终端系统信息是否更新，终端在根据寻呼确定系统信息更新的情况下，可以从系统信息中获取更新更新后的公共定时相关信息。而在根据寻呼信息确定系统信息未更新的情况下，可以不必获取系统信息，以便减少终端的功耗。
其中，在公共定时相关信息携带在其他系统信息中时，终端在根据寻呼确定系统信息更新的情况下，可以进一步根据SIB1中的预设字段，例如si-SchedulingInfo中的valueTag，确定携带在其他系统信息中的公共定时相关信息是否更新，在其他系统信息中的公共定时相关信息未更新的情况下，valueTag可以保持不变，在其他系统信息中的公共定时相关信息更新的情况下，valueTag可以改变。
图14是根据本公开的实施例示出的另一种公共定时相关信息广播方法的示意流程图。如图14所示，所述方法还包括：
在步骤S1401中，广播所述公共定时相关信息的有效时间相关信息。
在一个实施例中，公共定时相关信息可以存在一定时效性，而有关时效性的具体有效时间相关信息，可以由小区广播，进而终端可以根据有效时间相关信息确定已接收的公共定时相关信息是否有效。
在一个实施例中，在根据有效时间相关信息确定已接收的公共定时相关信息有效的情况下，可以不必获取携带公共定时相关信息的系统信息，以便减少功耗。
需要说明的是，在公共定时相关信息的有效时间范围内，小区也可以根据需要更新公共定时相关信息，并通过寻呼告知终端系统信息发生变更，在这种情况下，即使终端确定已接收的公共定时相关信息有效，仍然需要接收系统信息，以获取更新的公共定时相关信息。
另外，公共定时相关信息可以包括公共定时偏移量和时间漂移率，有效时间相关信息可以是仅适用于公共定时偏移量，也可以仅适用于时间漂移率，还可以既适用于公共定时偏移量，又适用于时间漂移率。
图15是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图15所示，所述有效时间相关信息为有效截止时刻，所述方法还包括：
在步骤S1501中，在所述截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
在一个实施例中，有效时间相关信息可以是有效截止时刻，那么在从起始时间到所述有效截止时刻的时段内，可以确定已广播的公共定时相关信息有效。
在有效截止时刻之前，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在截止时间之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
图16是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图16所示，所述有效时间相关信息为有效持续时长，所述方法还包括：
在步骤S1601中，在从起始时间持续所述有效持续时长之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
在一个实施例中，有效时间相关信息可以是有效持续时长，那么在从起始时间持续有效持续时长的时段内，可以确定已广播的公共定时相关信息有效。
在该时段内，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在时段之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
图17是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图17所示，所述有效时间相关信息为有效起始时刻，所述方法还包括：
在步骤S1701中，从所述有效起始时刻开始，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
在一个实施例中，有效时间相关信息可以是有效起始时刻，那么在从有效起始时刻开始，可以确定已广播的公共定时相关信息有效。
从有效起始时刻开始，小区仍然可以广播寻呼，终端可以根据接收到的寻呼确定系统信息是否更新，在确定系统信息更新的情况下，可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
图18是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图18所示，所述有效时间相关信息为有效起始时刻和有效截止时刻，所述方法还包括：
在步骤S1801中，从所述有效截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
在一个实施例中，有效时间相关信息可以是有效起始时刻和有效截止时刻，那么在从有效起始时刻到有效截止时刻时段内，可以确定已广播的公共定时相关信息有效。
在该时段内，小区可以不必广播寻呼来告知终端系统信息更新，终端也可以不必获取携带公共定时相关信息的系统信息，以便减少功耗，而在时段之后，小区可以广播寻呼来告知终端系统信息更新，终端可以获取携带公共定时相关信息的系统信息，以便确定新的公共定时相关信息。
图19是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图19所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
在步骤S1901中，发送第一指示信息以指示所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
在一个实施例中，小区可以通过第一指示信息指示系统帧号，使得终端确定有效起始时刻和/或有效截止时刻，也即所指示的系统帧号即有效起始时刻和/或有效截止时刻，其中，系统帧号可以是单一的系统帧号，也可以是高位系统帧号Hyper SFN和低位系统帧号的组合。在通过该方式指示有效起始时刻和/或有效截止时刻的情况下，需要小区持续广播当前的系统帧号。
图20是根据本公开的实施例示出的又一种公共定时相关信息广播方法的示意流程图。如图20所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
在步骤S2001中，发送第二指示信息以指示所述有效起始时刻和/或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
在一个实施例中，小区可以通过第二指示信息指示偏移量，使得终端确定有效起始时刻和/或有效截止时刻，所指示的偏移量，是相对于接收到公共定时相关信息的时间的偏移量。
其中，接收到公共定时相关信息的时间与上述实施例中有关起始时间的限定可以是相同的，在此不再赘述。
与前述的上行定时提前量确定方法和公共定时相关信息广播方法的实施例相对应，本公开还提供了上行定时提前量确定装置和公共定时相关信息广播装置的实施例。
图21是根据本公开的实施例示出的一种上行定时提前量确定装置的示意框图。本实施例所示的上行定时提前量确定装置可以适用于终端，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。所述终端可以作为用户设备与基站通信，所述基站包括但不限于4G基站、5G基站、6G基站。在一个实施例中，所述基站可以是后续任一实施例所述的公共定时相关信息广播装置所适用的基站。
在一个实施例中，终端和基站可以位于地面，终端可以与基站通过空中设备通信，例如基站将信息先发送给空中设备，再由空中设备发送给终端。所述空中设备包括但不限于卫星、无人机、空中平台等，所述空中设备可以在空中运动。
以下实施例中所述的小区，可以是指空中设备的信号覆盖区域，基站可以将信息发送给空中设备，由空中设备发送给该小区中的终端，其中，发送方式可以是广播，也可以是单播。
如图21所示，所述上行定时提前量确定装置可以包括：
定时信息接收模块2101，被配置为接收小区广播的公共定时相关信息；
定时提前确定模块2102，被配置为根据所述公共定时相关信息确定上行定时提前量。
在一个实施例中，所述公共定时相关信息包括以下至少之一：
公共定时偏移量、时间漂移率。
在一个实施例中，所述定时提前确定模块，被配置为根据起始时间的公共定时偏移量、所述时间漂移率、从所述起始时间到定时提前量更新时刻的时长更新公共定时偏移量；根据更新后的公共定时偏移量确定上行定时提前量。
在一个实施例中，所述起始时间为以下至少之一：
接收所述公共定时相关信息的时间所在系统信息窗口的边界；
接收所述公共定时相关信息的时间之前或之后最近的系统帧号边界；
接收所述公共定时相关信息的时间之前或之后的系统信息块SIB1的发送周期 边界，其中，系统信息块SIB1用于携带所述公共定时相关信息。
在一个实施例中，所述时间漂移率包括第一漂移率和第二漂移率，上行定时提前量还基于所述终端的特定定时提前量计算，所述定时提前确定模块，被配置为根据所述第一漂移率更新所述终端的特定定时提前量；根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述第二时间漂移率确定上行定时提前量。
在一个实施例中，上行定时提前量还基于所述终端的特定定时提前量计算，所述定时提前确定模块，被配置为根据所述时间漂移率更新所述终端的特定定时提前量；根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述时间漂移率确定上行定时提前量。
图22是根据本公开的实施例示出的另一种上行定时提前量确定装置的示意框图。如图22所示，所述装置还包括：
有效接收模块2201，被配置为接收小区广播的所述公共定时相关信息的有效时间相关信息；
有效确定模块2202，被配置为根据所述有效时间相关信息确定已接收的公共定时相关信息有效。
在一个实施例中，所述有效确定模块，被配置为响应于所述有效时间相关信息为有效截止时刻，在从起始时间到所述有效截止时刻的时段内，确定已接收到公共定时相关信息有效。
在一个实施例中，所述有效确定模块，被配置为响应于所述有效时间相关信息为有效持续时长，在从起始时间持续所述有效持续时长的时段内，确定已接收到公共定时相关信息有效。
在一个实施例中，所述有效确定模块，被配置为响应于所述有效时间相关信息为有效起始时刻，从所述有效起始时刻开始，确定已接收到公共定时相关信息有效。
在一个实施例中，所述有效确定模块，被配置为响应于所述有效时间相关信息为有效起始时刻和有效截止时刻，在从所述有效起始时刻到所述有效截止时刻的时段内，确定已接收到的公共定时相关信息有效。
图23是根据本公开的实施例示出的又一种上行定时提前量确定装置的示意框图。如图23所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所 述装置还包括：
帧号确定模块2301，被配置为根据小区发送的第一指示信息确定所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
图24是根据本公开的实施例示出的又一种上行定时提前量确定装置的示意框图。如图24所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述装置还包括：
偏移量确定模块2401，被配置为根据小区发送的第二指示信息确定所述有效起始时刻和/或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
在一个实施例中，所述有效确定模块，被配置为响应于所述公共定时相关信息中的有效截止时刻为接收到公共定时相关信息的时间对应的系统信息修改周期的结束时间，在所述有效截止时刻之前，确定已接收到的公共定时相关信息有效。
图25是根据本公开的实施例示出的一种公共定时相关信息广播装置的示意框图。本实施例所示的公共定时相关信息广播方法可以适用于小区，例如适用于小区对应的网络侧设备，所述网络侧设备包括但不限于是非地面网络中的地面基站、空中设备，所述基站包括但不限于4G基站、5G基站、6G基站。所述基站可以与作为用户设备的终端进行通信，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等电子设备。在一个实施例中，所述终端可以是上述任一实施例所述上行定时提前量确定装置所适用的终端。
在一个实施例中，终端和基站可以位于地面，终端可以与基站通过空中设备通信，例如基站将信息先发送给空中设备，再由空中设备发送给终端。所述空中设备包括但不限于卫星、无人机、空中平台等，所述空中设备可以在空中运动。
如图25所示，所述公共定时相关信息广播装置可以包括：
定时广播模块2501，被配置为广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定上行定时提前量。
在一个实施例中，所述公共定时相关信息包括以下至少之一：
公共定时偏移量、时间漂移率。
图26是根据本公开的实施例示出的另一种公共定时相关信息广播装置的示意框图。如图26所示，所述装置还包括：
有效广播模块2601，被配置为广播所述公共定时相关信息的有效时间相关信息。
图27是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图27所示，所述有效时间相关信息为有效截止时刻，所述装置还包括：
第一寻呼广播模块2701，被配置为在所述截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
图28是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图28所示，所述有效时间相关信息为有效持续时长，所述装置还包括：
第二寻呼广播模块2801，被配置为在从起始时间持续所述有效持续时长之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
图29是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图29所示，所述有效时间相关信息为有效起始时刻，所述装置还包括：
第三寻呼广播模块2901，被配置为从所述有效起始时刻开始，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
图30是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图30所示，所述有效时间相关信息为有效起始时刻和有效截止时刻，所述装置还包括：
第四寻呼广播模块3001，被配置为从所述有效截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
图31是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图31所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述装置还包括：
帧号指示模块3101，被配置为发送第一指示信息以指示所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
图32是根据本公开的实施例示出的又一种公共定时相关信息广播装置的示意框图。如图32所示，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述装置还包括：
偏移量指示模块3201，被配置为发送第二指示信息以指示所述有效起始时刻和 /或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在相关方法的实施例中进行了详细描述，此处将不做详细阐述说明。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
本公开的实施例还提出一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为执行上述任一实施例所述的上行定时提前量确定方法，和/或上述任一实施例所述的公共定时相关信息广播方法。
本公开的实施例还提出一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任一实施例所述的上行定时提前量确定方法，和/或上述任一实施例所述的公共定时相关信息广播方法中的步骤。
如图33所示，图33是根据本公开的实施例示出的一种用于公共定时相关信息广播的装置3300的示意框图。装置3300可以被提供为一基站。参照图33，装置3300包括处理组件3322、无线发射/接收组件3324、天线组件3326、以及无线接口特有的信号处理部分，处理组件3322可进一步包括一个或多个处理器。处理组件3322中的其中一个处理器可以被配置为实现上述任一实施例所述的公共定时相关信息广播方法。
图34是根据本公开的实施例示出的一种用于上行定时提前量确定的装置3400的示意框图。例如，装置3400可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图34，装置3400可以包括以下一个或多个组件：处理组件3402，存储器3404，电源组件3406，多媒体组件3408，音频组件3410，输入/输出(I/O)的接口 3412，传感器组件3414，以及通信组件3416。
处理组件3402通常控制装置3400的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件3402可以包括一个或多个处理器3420来执行指令，以完成上述的上行定时提前量确定方法的全部或部分步骤。此外，处理组件3402可以包括一个或多个模块，便于处理组件3402和其他组件之间的交互。例如，处理组件3402可以包括多媒体模块，以方便多媒体组件3408和处理组件3402之间的交互。
存储器3404被配置为存储各种类型的数据以支持在装置3400的操作。这些数据的示例包括用于在装置3400上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器3404可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件3406为装置3400的各种组件提供电力。电源组件3406可以包括电源管理系统，一个或多个电源，及其他与为装置3400生成、管理和分配电力相关联的组件。
多媒体组件3408包括在所述装置3400和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件3408包括一个前置摄像头和/或后置摄像头。当装置3400处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件3410被配置为输出和/或输入音频信号。例如，音频组件3410包括一个麦克风(MIC)，当装置3400处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器3404或经由通信组件3416发送。在一些实施例中，音频组件3410还包括一个扬声器，用于输出音频信号。
I/O接口3412为处理组件3402和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件3414包括一个或多个传感器，用于为装置3400提供各个方面的状态评估。例如，传感器组件3414可以检测到装置3400的打开/关闭状态，组件的相对定位，例如所述组件为装置3400的显示器和小键盘，传感器组件3414还可以检测装置3400或装置3400一个组件的位置改变，用户与装置3400接触的存在或不存在，装置3400方位或加速/减速和装置3400的温度变化。传感器组件3414可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件3414还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件3414还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件3416被配置为便于装置3400和其他设备之间有线或无线方式的通信。装置3400可以接入基于通信标准的无线网络，如WiFi，2G或3G，4G LTE、5G NR或它们的组合。在一个示例性实施例中，通信组件3416经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件3416还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置3400可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述上行定时提前量确定方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器3404，上述指令可由装置3400的处理器3420执行以完成上述上行定时提前量确定方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的 公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本公开实施例所提供的方法和装置进行了详细介绍，本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的一般技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。

Claims (27)

  1. 一种上行定时提前量确定方法，其特征在于，适用于终端，所述方法包括：
    接收小区广播的公共定时相关信息；
    根据所述公共定时相关信息确定上行定时提前量。
  2. 根据权利要求1所述的方法，其特征在于，所述公共定时相关信息包括以下至少之一：
    公共定时偏移量、时间漂移率。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述公共定时相关信息确定上行定时提前量包括：
    根据起始时间的公共定时偏移量、所述时间漂移率、从所述起始时间到定时提前量更新时刻的时长更新公共定时偏移量；
    根据更新后的公共定时偏移量确定上行定时提前量。
  4. 根据权利要求3所述的方法，其特征在于，所述起始时间为以下至少之一：
    接收所述公共定时相关信息的时间所在系统信息窗口的边界；
    接收所述公共定时相关信息的时间之前或之后最近的系统帧号边界；
    接收所述公共定时相关信息的时间之前或之后的系统信息块SIB1的发送周期边界，其中，系统信息块SIB1用于携带所述公共定时相关信息。
  5. 根据权利要求3所述的方法，其特征在于，所述时间漂移率包括第一漂移率和第二漂移率，上行定时提前量还基于所述终端的特定定时提前量计算，所述根据所述公共定时相关信息确定上行定时提前量包括：
    根据所述第一漂移率更新所述终端的特定定时提前量；
    根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述第二时间漂移率确定上行定时提前量。
  6. 根据权利要求3所述的方法，其特征在于，上行定时提前量还基于所述终端的特定定时提前量计算，所述根据所述公共定时相关信息确定上行定时提前量包括：
    根据所述时间漂移率更新所述终端的特定定时提前量；
    根据更新后的所述终端的特定定时提前量、所述公共定时相关信息和所述时间漂移率确定上行定时提前量。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    接收小区广播的所述公共定时相关信息的有效时间相关信息；
    根据所述有效时间相关信息确定已接收的公共定时相关信息有效。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
    响应于所述有效时间相关信息为有效截止时刻，在从起始时间到所述有效截止时刻的时段内，确定已接收到公共定时相关信息有效。
  9. 根据权利要求7所述的方法，其特征在于，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
    响应于所述有效时间相关信息为有效持续时长，在从起始时间持续所述有效持续时长的时段内，确定已接收到公共定时相关信息有效。
  10. 根据权利要求7所述的方法，其特征在于，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
    响应于所述有效时间相关信息为有效起始时刻，从所述有效起始时刻开始，确定已接收到公共定时相关信息有效。
  11. 根据权利要求7所述的方法，其特征在于，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
    响应于所述有效时间相关信息为有效起始时刻和有效截止时刻，在从所述有效起始时刻到所述有效截止时刻的时段内，确定已接收到的公共定时相关信息有效。
  12. 根据权利要求7所述的方法，其特征在于，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
    根据小区发送的第一指示信息确定所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
  13. 根据权利要求7所述的方法，其特征在于，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
    根据小区发送的第二指示信息确定所述有效起始时刻和/或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
  14. 根据权利要求7所述的方法，其特征在于，所述根据所述有效时间相关信息确定已接收的公共定时相关信息有效包括：
    响应于所述公共定时相关信息中的有效截止时刻为接收到公共定时相关信息的时间对应的系统信息修改周期的结束时间，在所述有效截止时刻之前，确定已接收到的公共定时相关信息有效。
  15. 一种公共定时相关信息广播方法，其特征在于，适用于小区，所述方法包括：
    广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定 上行定时提前量。
  16. 根据权利要求15所述的方法，其特征在于，所述公共定时相关信息包括以下至少之一：
    公共定时偏移量、时间漂移率。
  17. 根据权利要求15和16中任一项所述的方法，其特征在于，所述方法还包括：
    广播所述公共定时相关信息的有效时间相关信息。
  18. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息为有效截止时刻，所述方法还包括：
    在所述截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
  19. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息为有效持续时长，所述方法还包括：
    在从起始时间持续所述有效持续时长之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
  20. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息为有效起始时刻，所述方法还包括：
    从所述有效起始时刻开始，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
  21. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息为有效起始时刻和有效截止时刻，所述方法还包括：
    从所述有效截止时刻之后，响应于携带所述公共定时相关信息的系统信息更新，广播寻呼。
  22. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
    发送第一指示信息以指示所述有效起始时刻和/或所述有效截止时刻对应的系统帧号。
  23. 根据权利要求17所述的方法，其特征在于，所述有效时间相关信息包括有效起始时刻和/或有效截止时刻，所述方法还包括：
    发送第二指示信息以指示所述有效起始时刻和/或所述有效截止时刻相对于接收到公共定时相关信息的时间的偏移值。
  24. 一种上行定时提前量确定装置，其特征在于，适用于终端，所述装置包括：
    定时信息接收模块，被配置为接收小区广播的公共定时相关信息；
    定时提前确定模块，被配置为根据所述公共定时相关信息确定上行定时提前量。
  25. 一种公共定时相关信息广播装置，其特征在于，适用于小区，所述装置包括：
    定时广播模块，被配置为广播公共定时相关信息，其中，所述公共定时相关信息供所述小区中的终端确定上行定时提前量。
  26. 一种电子设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为执行权利要求1至14中任一项所述的上行定时提前量确定方法，和/或权利要求15至23中任一项所述的公共定时相关信息广播方法。
  27. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求1至14中任一项所述的上行定时提前量确定方法，和/或权利要求15至23中任一项所述的公共定时相关信息广播方法中的步骤。
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