WO2023077473A1 - Rapport d'état de validité sur une synchronisation en liaison montante - Google Patents

Rapport d'état de validité sur une synchronisation en liaison montante Download PDF

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Publication number
WO2023077473A1
WO2023077473A1 PCT/CN2021/129135 CN2021129135W WO2023077473A1 WO 2023077473 A1 WO2023077473 A1 WO 2023077473A1 CN 2021129135 W CN2021129135 W CN 2021129135W WO 2023077473 A1 WO2023077473 A1 WO 2023077473A1
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WIPO (PCT)
Prior art keywords
window
status report
valid status
processor
memory
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PCT/CN2021/129135
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English (en)
Inventor
Jingyuan Sun
Ping Yuan
Mads LAURIDSEN
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Nokia Shanghai Bell Co., Ltd.
Nokia Solutions And Networks Oy
Nokia Technologies Oy
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Application filed by Nokia Shanghai Bell Co., Ltd., Nokia Solutions And Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co., Ltd.
Priority to PCT/CN2021/129135 priority Critical patent/WO2023077473A1/fr
Publication of WO2023077473A1 publication Critical patent/WO2023077473A1/fr

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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
    • 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

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to devices, methods, apparatus and computer readable storage media for reporting a validity status.
  • NTN Non-Terristrial Network
  • Pre-compensation is used specifically to handle large propagation delays and potentially also Doppler shift, which occur due to the satellite being at an altitude of at least 600 km.
  • a duration of a validity timer for system broadcasted information could be e.g. 20 ⁇ 30s.
  • the terminal device may assume the system broadcasted information is valid during the duration.
  • the terminal device may use the system broadcasted information to estimate the timing advance (TA) and frequency Doppler shift for UL pre-compensation.
  • TA timing advance
  • Doppler shift for UL pre-compensation.
  • Narrow Band Internet of Things NB-IoT
  • E-MTC Enhanced Machine-Type Communications
  • HD Half-Duplex
  • the network device and the terminal device must have a common understanding of a validity timer for the system broadcasted information. Without the common understanding, there will be unexpected or uncontrolled behavior from the terminal device, causing that the network device cannot schedule the terminal device as the network device has no information on when the terminal device may or will transmit or receive.
  • example embodiments of the present disclosure provide a solution for reporting a validity status associated with a validity timer.
  • a first device comprising at least one processor and at least one memory including computer program codes.
  • the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device to: determine a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between the first device and a second device in at least one of time domain and frequency domain; and transmit, within the window, a valid status report associated with the validity timer to the second device.
  • a second device comprising at least one processor and at least one memory including computer program codes.
  • the at least one memory and the computer program codes are configured to, with the at least one processor, cause the second device to: determine a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between a first device and the second device in at least one of time domain and frequency domain; and receive, within the window, a valid status report associated with the validity timer from the first device.
  • a method implemented at a first device comprises: determining, at a first device, a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between the first device and a second device in at least one of time domain and frequency domain; and transmitting, within the window, a valid status report associated with the validity timer to the second device.
  • a method implemented at a second device comprises: determining, at a second device, a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between a first device and the second device in at least one of time domain and frequency domain; and receiving, within the window, a valid status report associated with the validity timer from the first device.
  • a first apparatus comprises: means for determining, at a first device, a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between the first device and a second device in at least one of time domain and frequency domain; and means for transmitting, within the window, a valid status report associated with the validity timer to the second device.
  • a second apparatus comprises: means for determining, at a second device, a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between a first device and the second device in at least one of time domain and frequency domain; and means for receiving, within the window, a valid status report associated with the validity timer from the first device.
  • a non-transitory computer readable medium comprises program instructions for causing an apparatus to perform the method according to the third or fourth aspect.
  • Fig. 1 illustrates an example communication network in which embodiments of the present disclosure may be implemented
  • Fig. 2 illustrates a signaling chart illustrating a process for reporting a validity status associated with a validity timer according to some example embodiments of the present disclosure
  • Figs. 3A and 3B illustrate an example of the window according to some example embodiments of the present disclosure, respectively;
  • Fig. 4 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure
  • Fig. 5 illustrates a flowchart of a method implemented at a first device according to some other example embodiments of the present disclosure
  • Fig. 6 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure
  • Fig. 7 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure.
  • Fig. 8 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • suitable generation communication protocols including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the a
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR Next Generation NodeB (gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , Integrated Access and Backhaul (IAB) node, a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • the network device is allowed to be defined as part of a gNB such as for example in CU/DU split in which case the network device is defined to be either a gNB-CU or a gNB-DU.
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • Half-Duplex is the main operation mode for a terminal device in Narrow Band Internet of Things (NB-IoT) and Enhanced Machine-Type Communications (E-MTC) .
  • NB-IoT Narrow Band Internet of Things
  • E-MTC Enhanced Machine-Type Communications
  • the terminal device should stop uplink (UL) transmission when doing downlink (DL) reception and stop DL reception when doing UL transmission.
  • a terminal device in NB-IoT and E-MTC mostly operates in HD mode.
  • the terminal device may not receive the system broadcasted information and may not report the validity status in the ongoing repetitions of the current UL transmission.
  • the repetitions may last for long time.
  • the maximum repetition duration time may be about 10s for some cases when subcarrier spacing is 15kHz or even may be about 40s for some cases when subcarrier spacing is 3.75kHz.
  • the system broadcasted information stored by the terminal device may already become invalid, even the system broadcasted information is the one read before the repetitions. Then, after the long UL repetitions, the validity of system broadcasted information will be expired.
  • the UL gap may be a 40ms UL gap after each 256ms UL repetition for NPUSCH.
  • the UL gap is just used for the terminal device to receive Primary Synchronization Signal (PSS) , Secondary Synchronization Signal (SSS) or Physical Broadcast Channel (PBCH) for DL synchronization.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • the UL gap may not be used for receiving the system broadcasted information because the common factor for UL gap (for example, (256+40) ms) and a period (for example, 40/80 ms) of the system broadcasted information is too large and the terminal device may not wait for the UL gap to successfully read the system broadcasted information with repetitions for the terminal device in NB-IoT with reduced number of antenna and bad channel status.
  • the common factor for UL gap for example, (256+40) ms
  • a period for example, 40/80 ms
  • a first device determines a window which is within a duration of a validity timer for system broadcasted information.
  • the system broadcasted information is used for deriving a compensation on a transmission between the first device and a second device in at least one of time domain and frequency domain.
  • the first device transmits, within the window, a valid status report associated with the validity timer to the second device. In this way, report of the valid status report is supported.
  • Fig. 1 illustrates an example communication network 100 in which embodiments of the present disclosure can be implemented.
  • the network 100 may be implemented as an NTN.
  • the communication network 100 comprises a first device 110, a second device 120, a satellite 130, a gateway (GW) 140 and a NTN Control Center (NCC) 150.
  • GW gateway
  • NCC NTN Control Center
  • the first device 110 may receive system broadcasted information.
  • the system broadcasted information may comprise at least one of the following: ephemeris data of the satellite 130, common TA and GNSS information.
  • measurements of position and velocity of the satellite 130 may be made at the satellite 130 with on-board GNSS.
  • the measurements may be collected by the NCC 150.
  • the NCC 150 may generate the ephemeris data of the satellite 130 and transmit the ephemeris data to the GW 140.
  • the GW 140 may transmit the ephemeris data to the second device 120.
  • the second device 120 may be onboard the satellite 130. Then, the second device 120 may broadcast the ephemeris data periodically in a system information block (SIB) .
  • SIB system information block
  • the second device 120 may also broadcast the common TA periodically in the SIB.
  • the GNSS information may be transmitted by a GNSS which is not shown in Fig. 1.
  • the first device 110 is illustrated as a terminal device and the second device 120 is illustrated as a network device serving the terminal device 110. It is to be understood that the terminal device and the network device are only example implementations of the first device 110 and the second device 120, respectively, without suggesting any limitation as to the scope of the present application. Any other suitable implementations are possible as well.
  • first and second devices as well as the satellite, GW and NCC as shown in Fig. 1 are only for the purpose of illustration without suggesting any limitations.
  • the network 100 may include any suitable number of first and second devices as well as the satellite, GW and NCC adapted for implementing embodiments of the present disclosure.
  • the communications in the network 100 may conform to any suitable standards including, but not limited to, LTE, LTE-evolution, LTE-advanced (LTE-A) , wideband code division multiple access (WCDMA) , code division multiple access (CDMA) and global system for mobile communications (GSM) and the like.
  • the communications may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols.
  • Fig. 2 shows a signaling chart illustrating a process 200 for reporting a validity status associated with a validity timer according to some example embodiments of the present disclosure.
  • the process 200 will be described with reference to Fig. 1.
  • the process 200 may involve the first device 110 and the second device 120 as illustrated in Fig. 1.
  • the process 200 has been described in the communication network 100 of Fig. 1, this process may be likewise applied to other communication scenarios.
  • the first device 110 determines (210) a window which is within a duration of a validity timer for system broadcasted information.
  • the system broadcasted information is used for deriving a compensation on a transmission between the first device 110 and the second device 120 in at least one of time domain and frequency domain. Accordingly, the second device 120 determines (220) the window.
  • the first device 110 transmits (230) , within the window, a valid status report associated with the validity timer to the second device 120. Accordingly, the second device 120 receives (240) the valid status report from the first device 110.
  • the window may be inserted in a duration of repetitions of data transmission to the second device 120, and the repetitions of data transmission to the second device 120 will be stopped within the window. This will be described with reference to Figs. 3A and 3B.
  • Fig. 3A shows an example of the window according to some example embodiments of the present disclosure.
  • a window 310 is inserted in a duration 320 of repetitions of data transmission to the second device 120.
  • the duration 320 of repetitions ends before an expiration of the validity timer for system broadcasted information.
  • the first device 110 will stop the repetitions of data transmission to the second device 120.
  • the first device 110 will recover the repetitions of data transmission to the second device 120.
  • Fig. 3B shows another example of the window according to some example embodiments of the present disclosure.
  • the example of Fig. 3B is similar to the example of Fig. 3A.
  • the example of Fig. 3B is different from the example of Fig. 3A in that a duration 340 of repetitions of data transmission to the second device 120 ends after the expiration of the validity timer.
  • the first device 110 upon the expiration of the validity timer, the first device 110 will stop the repetitions of data transmission to the second device 120.
  • the window may be inserted in a duration of repetitions of data reception from the second device 120, and the repetition of data reception from the second device 120 will be stopped within the window.
  • the first device 110 may receive the system broadcasted information within the window. In such some embodiments, there may be a gap for switching from reception of the system broadcasted information to transmission of the valid status report.
  • the system broadcasted information may comprise at least one of the following: ephemeris data of the satellite 130, common TA and GNSS information.
  • the first device 110 may receive at least one of the ephemeris data of the satellite 130 and the common TA from the second device 120 within the window. Additionally or alternatively, the first device 110 may receive the GNSS information from a GNS S within the window.
  • the first device 110 may transmit the valid status report based on the receiving of the system broadcasted information.
  • the first device 110 may transmit the valid status report indicating the failure or the validity timer is about to expire.
  • the first device 110 may transmit the valid status report indicating the success. Alternatively, the first device 110 may indicate the success without transmitting the valid status report. In this way, overhead of signaling will be reduced.
  • the first device 110 may not receive the system broadcasted information within the window. In such embodiments, the first device 110 may transmit the valid status report indicating that the validity timer is about to expire.
  • the first device 110 may receive, from the second device 120 within the window, a feedback indicating whether the valid status report is received successfully by the second device 120. In such embodiments, there may be a gap for switching from transmission of the valid status report to receiving of the feedback.
  • the first device 110 may determine the window by determining at least two of the following: a start of the window, an end of the window, or a length of the window.
  • At least one of the following may be pre-defined: the start of the window, the end of the window, or the length of the window
  • the first device 110 may receive configuration information about the window from the second device 120.
  • the first device 110 may receive the configuration information via radio resource control signaling, media access control (MAC) control element (CE) , or downlink control information (DCI) .
  • MAC media access control
  • CE control element
  • DCI downlink control information
  • the first device 110 may determine, based on the configuration information, at least one of the following: the start of the window, the end of the window, or the length of the window.
  • the first device 110 may select and report to the second device 120 at least one of the following: the start of the window, the end of the window, or the length of the window.
  • the first device 110 may determine the start of the window based on a start or an expiration of the validity timer and a first offset.
  • the first offset may be pre-defined or configured by the second device 120.
  • the first offset may be represented by a first number of time units.
  • the time units may comprise millisecond, slot, subframe, or frame.
  • the first device 110 may determine the end of the window based on the start or the expiration of the validity timer and a second offset.
  • the second offset may be pre-defined or configured by the second device 120.
  • the first offset may be represented by a second number of time units.
  • the configuration information about the window may further indicate a ratio of time for receiving the system broadcasted information to time for transmitting the valid status report.
  • the configuration information about the window may further indicate at least part of scheduling information for transmitting the valid status report.
  • the at least part of scheduling information may indicate at least one of the following: resource for transmitting the valid status report in time domain and frequency domain, a code rate, information about reference signals, the number of repetitions of the valid status report transmission.
  • At least part of the scheduling information may be predefined.
  • the first device 110 may determine a resource for transmitting the valid status report based on a resource for the repetitions of data transmission to the second device.
  • the resource for transmitting the valid status report may be the same as the resource in frequency domain for the repetitions of data transmission.
  • the first device 110 may transmit the valid status report on the determined resource.
  • Fig. 4 shows a flowchart of an example method 400 implemented at a first device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the first device 110 with reference to Fig. 1.
  • the first device 110 determines a window which is within a duration of a validity timer for system broadcasted information.
  • the system broadcasted information is used for deriving a compensation on a transmission between the first device and a second device in at least one of time domain and frequency domain.
  • the first device 110 transmits, within the window, a valid status report associated with the validity timer to the second device 120.
  • the window is inserted in a duration of repetitions of data transmission to the second device 120, and the repetitions of data transmission to the second device 120 will be stopped within the window; or the window is inserted in a duration of repetitions of data reception from the second device 120, and the repetition of data reception from the second device 120 will be stopped within the window.
  • the first device 110 receives the system broadcasted information within the window and the first device 110 transmits the valid status report based on the receiving.
  • the first device 110 in response to failure of receiving the system broadcasted information, transmits the valid status report indicating the failure or the validity timer is about to expire.
  • the first device 110 transmits the valid status report indicating the validity timer is about to expire.
  • the first device 110 in response to success of receiving the system broadcasted information, the first device 110 indicates the success without transmitting the valid status report.
  • the first device 110 in response to success of receiving the system broadcasted information, transmits the valid status report indicating the success.
  • the first device 110 receives, from the second device 120 within the window, a feedback indicating whether the valid status report is received successfully.
  • the first device 110 determines the window by determining at least two of the following: a start of the window, an end of the window, or a length of the window.
  • the first device 110 determines the window by: determining the start of the window based on a start or an expiration of the validity timer and a first offset; or determining the end of the window based on the start or the expiration of the validity timer and a second offset.
  • the first device 110 determines the window based on at least one of the following: a system pre-definition, or configuration information from the second device 120.
  • the configuration information further indicates at least part of scheduling information for transmitting the valid status report; or the at least part of scheduling information is predefined.
  • the first device 110 determines a resource for transmitting the valid status report based on a resource for the repetitions of data transmission to the second device 120; and the first device 110 transmits the valid status report on the determined resource.
  • the first device 110 comprises a terminal device
  • the second device 120 comprises a network device.
  • Fig. 5 shows a flowchart of an example method 500 implemented at a first device in accordance with some example embodiments of the present disclosure.
  • the method 500 may be an example implementation of the method 400.
  • the method 500 will be described from the perspective of the first device 110 with reference to Fig. 1.
  • the first device 110 receives, from the second device 120, configuration information about the window in an initial access procedure or in an RRC configuration.
  • the first device 110 starts repetitions of transmission to the second device 120based on grant received from the second device 120.
  • the first device 110 determines whether the window starts.
  • the first device 110 determines the window starts, at block 540, the first device 110 stops the ongoing repetitions of transmission and receives the system broadcasted information.
  • the first device 110 determines whether the system broadcasted information is successfully received.
  • the first device 110 determines that the system broadcasted information is successfully received, at block 560, the first device 110 transmits a valid status report on configured or predefined resource within the window.
  • the valid status report may indicate that the system broadcasted information is valid.
  • the first device 110 resets the validity timer and recovers the ongoing repetitions of transmission. In some embodiments, there may be a gap between the window and recovery of the ongoing repetitions of transmission.
  • the first device 110 determines that the system broadcasted information is not successfully received, at block 580, the first device 110 transmits a valid status report on configured or predefined resource within the window.
  • the valid status report may indicate failure of reception of the system broadcasted information.
  • the first device 110 stops the ongoing repetitions of transmission when the validity timer expires.
  • Fig. 6 shows a flowchart of an example method 600 implemented at a first device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the second device 120 with reference to Fig. 1.
  • the second device 120 determines a window which is within a duration of a validity timer for system broadcasted information.
  • the system broadcasted information is used for deriving a compensation on a transmission between a first device 110 and the second device 120 in at least one of time domain and frequency domain.
  • the second device 120 receives, within the window, a valid status report associated with the validity timer from the first device 110.
  • the window is inserted in a duration of repetitions of data transmission to the first device 110, the repetitions of data transmission to the first device 110 will be stopped within the window; or the window is inserted in a duration of repetitions of data reception from the first device 110, the repetition of data reception from the first device 110 will be stopped within the window.
  • the second device 120 receives the valid status report indicating failure or success of receiving the system broadcasted information by the first device 110, or indicating the validity timer is about to expire.
  • the second device 120 determines the success of receiving the system broadcasted information by the first device 110 if not receiving the valid status report. In such embodiments, the second device 120 may determines the information was received successfully by the first device 110, because the first device 110 continues the repetitions of transmission to the second device 120 without providing the explicit status report.
  • the second device 120 transmits, to the first device 110 within the window, a feedback indicating whether the valid status report is received successfully.
  • the second device 120 determines the window by determining at least two of the following: a start of the window, an end of the window, or a length of the window.
  • the second device 120 determines the start of the window based on a start or an expiration of the validity timer and a first offset; or determines the end of the window based on the start or the expiration of the validity timer and a second offset.
  • the second device 120 determines the window based on a system pre-definition.
  • the second device 120 transmits configuration information about the window to the first device 110.
  • the configuration information further indicates at least part of scheduling information for transmitting the valid status report; or the at least part of scheduling information is predefined.
  • the second device 120 determines a resource for receiving the valid status report based on a resource for the repetitions of data reception from the first device 110; and the second device 120 receives the valid status report on the determined resource.
  • the first device 110 comprises a terminal device
  • the second device 120 comprises a network device.
  • an apparatus capable of performing any of the method 400 may comprise means for performing the respective steps of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the first apparatus comprises: means for determining a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between the first apparatus and a second apparatus in at least one of time domain and frequency domain; and means for transmitting, within the window, a valid status report associated with the validity timer to the second apparatus.
  • the window is inserted in a duration of repetitions of data transmission to the second apparatus, and the repetitions of data transmission to the second apparatus will be stopped within the window; or the window is inserted in a duration of repetitions of data reception from the second apparatus, and the repetition of data reception from the second apparatus will be stopped within the window.
  • the first apparatus receives the system broadcasted information within the window and the first apparatus transmits the valid status report based on the receiving.
  • the means for transmitting in response to failure of receiving the system broadcasted information, comprises means for transmitting the valid status report indicating the failure or the validity timer is about to expire.
  • the means for transmitting comprises means for transmitting the valid status report indicating the validity timer is about to expire.
  • the first apparatus in response to success of receiving the system broadcasted information, further comprises means for indicating the success without transmitting the valid status report.
  • the means for transmitting in response to success of receiving the system broadcasted information, comprises means for transmitting the valid status report indicating the success.
  • the first apparatus further comprises means for receiving, from the second apparatus within the window, a feedback indicating whether the valid status report is received successfully.
  • the means for determining the window comprises means for determining at least two of the following: a start of the window, an end of the window, or a length of the window.
  • the means for determining the window comprises means for determining the start of the window based on a start or an expiration of the validity timer and a first offset; or determining the end of the window based on the start or the expiration of the validity timer and a second offset.
  • the means for determining the window comprises means for determining the window based on at least one of the following: a system pre-definition, or configuration information from the second apparatus.
  • the configuration information further indicates at least part of scheduling information for transmitting the valid status report; or the at least part of scheduling information is predefined.
  • the first apparatus further comprises means for determining a resource for transmitting the valid status report based on a resource for the repetitions of data transmission to the second apparatus; and the means for transmitting comprises means for transmitting the valid status report on the determined resource.
  • an apparatus capable of performing any of the method 500 may comprise means for performing the respective steps of the method 500.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the second apparatus comprises: means for determining a window which is within a duration of a validity timer for system broadcasted information, the system broadcasted information being used for deriving a compensation on a transmission between a first apparatus and the second apparatus in at least one of time domain and frequency domain; and means for receiving, within the window, a valid status report associated with the validity timer from the first apparatus.
  • the window is inserted in a duration of repetitions of data transmission to the first apparatus, the repetitions of data transmission to the first apparatus will be stopped within the window; or the window is inserted in a duration of repetitions of data reception from the first apparatus, the repetition of data reception from the first apparatus will be stopped within the window.
  • the means for receiving comprises means for receiving the valid status report indicating failure or success of receiving the system broadcasted information by the first apparatus or indicating the validity timer is about to expire.
  • the second apparatus further comprises means for determining the success of receiving the system broadcasted information by the first apparatus if not receiving the valid status report.
  • the second apparatus further comprises means for transmitting, to the first apparatus within the window, a feedback indicating whether the valid status report is received successfully.
  • the means for determining the window comprises means for determining at least two of the following: a start of the window, an end of the window, or a length of the window.
  • the means for determining the window comprises means for determining the start of the window based on a start or an expiration of the validity timer and a first offset; or means for determining the end of the window based on the start or the expiration of the validity timer and a second offset.
  • the means for determining the window comprises means for determining the window based on a system pre-definition.
  • the second apparatus further comprises means for transmitting configuration information about the window to the first apparatus.
  • the configuration information further indicates at least part of scheduling information for transmitting the valid status report; or the at least part of scheduling information is predefined.
  • the second apparatus further comprises means for determining a resource for receiving the valid status report based on a resource for the repetitions of data reception from the first apparatus; and the means for receiving comprises means for receiving the valid status report on the determined resource.
  • Fig. 7 is a simplified block diagram of a device 700 that is suitable for implementing embodiments of the present disclosure.
  • the device 700 may be provided to implement the communication device, for example, the first device 110 or the second device 120 as shown in Fig. 1.
  • the device 700 includes one or more processors 710, one or more memories 720 coupled to the processor 710, and one or more communication modules 740 coupled to the processor 710.
  • the communication module 740 is for bidirectional communications.
  • the communication module 740 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 710 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 700 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 720 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 724, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 722 and other volatile memories that will not last in the power-down duration.
  • a computer program 730 includes computer executable instructions that are executed by the associated processor 710.
  • the program 730 may be stored in the ROM 724.
  • the processor 710 may perform any suitable actions and processing by loading the program 730 into the RAM 722.
  • the embodiments of the present disclosure may be implemented by means of the program 730 so that the device 700 may perform any process of the disclosure as discussed with reference to Figs. 1 to 6.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 730 may be tangibly contained in a computer readable medium which may be included in the device 700 (such as in the memory 720) or other storage devices that are accessible by the device 700.
  • the device 700 may load the program 730 from the computer readable medium to the RAM 722 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • Fig. 8 shows an example of the computer readable medium 800 in form of CD or DVD.
  • the computer readable medium has the program 730 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the methods 400, 500 and 600 as described above with reference to Figs. 4-6.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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  • Signal Processing (AREA)
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Abstract

Des modes de réalisation de la présente divulgation concernent le rapport d'un état de validité associé à un minuteur de validité. Un premier dispositif détermine une fenêtre qui se trouve à l'intérieur d'une durée d'un minuteur de validité pour des informations diffusées par le système. Les informations diffusées par le système sont utilisées pour dériver une compensation sur une transmission entre le premier dispositif et un second dispositif dans au moins l'un parmi le domaine temporel et le domaine fréquentiel. Le premier dispositif transmet, à l'intérieur de la fenêtre, un rapport d'état valide associé au minuteur de validité au second dispositif.
PCT/CN2021/129135 2021-11-05 2021-11-05 Rapport d'état de validité sur une synchronisation en liaison montante WO2023077473A1 (fr)

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US20210281520A1 (en) * 2020-03-09 2021-09-09 Qualcomm Incorporated Timing adjustment in non-terrestrial wireless communications
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