CN117377036A - Communication method and device for discontinuous coverage and computer readable storage medium - Google Patents

Communication method and device for discontinuous coverage and computer readable storage medium Download PDF

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Publication number
CN117377036A
CN117377036A CN202210760678.4A CN202210760678A CN117377036A CN 117377036 A CN117377036 A CN 117377036A CN 202210760678 A CN202210760678 A CN 202210760678A CN 117377036 A CN117377036 A CN 117377036A
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China
Prior art keywords
coverage
time period
system message
current cell
period
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CN202210760678.4A
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Chinese (zh)
Inventor
刘旭
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to CN202210760678.4A priority Critical patent/CN117377036A/en
Priority to PCT/CN2023/103049 priority patent/WO2024002128A1/en
Publication of CN117377036A publication Critical patent/CN117377036A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A communication method and device of discontinuous coverage, computer readable storage medium, the communication method includes: acquiring a first system message broadcasted in a current coverage time period, wherein the first system message comprises: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1. By the scheme, the terminal equipment can be prevented from being awakened in each coverage time period, unnecessary acquisition times of system information are reduced, and power consumption of the terminal equipment is reduced.

Description

Communication method and device for discontinuous coverage and computer readable storage medium
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a discontinuous coverage communication method and apparatus, and a computer readable storage medium.
Background
In a discontinuous coverage scenario, for a terminal device in IDLE state (IDLE), a wake-up is required to receive paging messages (paging).
In the prior art, the access network device broadcasts ephemeris information for the next coverage period by broadcasting SIB32/SIB32-NB messages. After the next satellite arrives, the terminal device cannot know the subsequent coverage condition of the serving cell. Therefore, the terminal device may not normally receive the paging message after waking up, and there is unnecessary power consumption overhead.
Disclosure of Invention
The embodiment of the invention solves the technical problem of larger power consumption of the terminal equipment.
In order to solve the above technical problems, an embodiment of the present invention provides a discontinuous coverage communication method, which is applied to a terminal device, and includes: acquiring a first system message broadcasted in a current coverage time period, wherein the first system message comprises: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
Optionally, the coverage period corresponding to the satellite entering the current cell includes: the time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
Optionally, the coverage period corresponding to the satellite entering the current cell is: and entering a coverage time period corresponding to the satellite of the current cell within a preset time period after the current coverage time period.
Optionally, the coverage period corresponding to the satellite entering the current cell is: before the preset time, entering a coverage time period corresponding to the satellite of the current cell.
Optionally, the first system message further includes a validity duration; after acquiring the broadcasted first system message, further comprising: determining to reacquire the coverage time period of the first system message based on the coverage time periods corresponding to the N satellites entering the current cell and the validity duration; and waking up and reacquiring the first system message according to the coverage time period of reacquiring the first system message.
Optionally, after acquiring the broadcasted first system message, the method further includes: predicting paging time or a paging transmission window starting point according to the paging cycle; determining the paging occasion or the coverage time period associated with the starting point of the paging transmission window according to the coverage time periods corresponding to the N satellites entering the current cell; and waking up in the associated coverage time period and monitoring paging messages.
Optionally, the communication method of discontinuous coverage further includes: and re-acquiring the first system message according to the associated coverage time period.
Optionally, the first system message further includes a validity duration; the re-acquiring the first system message according to the associated coverage time period includes: and if a plurality of associated coverage time periods exist in the validity duration, re-acquiring the first system message in the last associated coverage time period.
Optionally, the waking up in the associated coverage period includes: and when detecting that the time interval between the paging occasion or the starting point of the paging transmission window and the starting time of the associated coverage time period is smaller than a preset threshold value, waking up in the associated coverage time period.
Optionally, the preset threshold value is issued by the access network device in a broadcast manner.
The embodiment of the invention also provides another discontinuous coverage communication method which is applied to the access network equipment and comprises the following steps: broadcasting and transmitting a first system message in the current coverage time period, wherein the first system message comprises the following components: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
Optionally, the coverage period corresponding to the satellite entering the current cell includes: the time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
Optionally, the coverage period corresponding to the satellite entering the current cell is: and entering a coverage time period corresponding to the satellite of the current cell within a preset time period after the current coverage time period.
Optionally, the coverage period corresponding to the satellite entering the current cell is: before the preset time, entering a coverage time period corresponding to the satellite of the current cell.
The embodiment of the invention also provides a communication device with discontinuous coverage, which is applied to terminal equipment and comprises: an acquiring unit, configured to acquire a broadcasted first system message in a current coverage period, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
The embodiment of the invention also provides another communication device with discontinuous coverage, which is applied to access network equipment and comprises: a sending unit, configured to broadcast and send a first system message in a current coverage period, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
The embodiment of the invention also provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of any of the discontinuous coverage communication methods.
The embodiment of the invention also provides another discontinuous coverage communication device, which comprises a memory and a processor, wherein the memory is stored with a computer program which can be run on the processor, and the processor executes the steps of any discontinuous coverage communication method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
and in the current coverage time period, acquiring a broadcasted first system message, wherein the first system message comprises N coverage time periods corresponding to satellites entering the current cell after the current coverage time period. The terminal equipment can learn the coverage time periods corresponding to the N satellites entering the current cell after the current coverage time period according to the first system message. Therefore, the terminal equipment can know the following N coverage time periods, and then wake up to receive the paging message only in the coverage time periods, so that the power consumption can be effectively reduced.
Further, through the validity duration of the first system message, it can be determined in which coverage time periods to reacquire the first system message, and the first system message does not need to be reacquired in other coverage time periods, so that the acquisition times of the first system message can be effectively reduced, and the power consumption of the terminal device can be further reduced.
In addition, when the paging occasion arrives, the terminal equipment wakes up and reacquires the first system message, so that accurate monitoring of the paging message can be ensured.
Drawings
FIG. 1 is a flow chart of a method of communication for discontinuous coverage in an embodiment of the present invention;
FIG. 2 is a timing diagram of a coverage period in an embodiment of the invention;
FIG. 3 is a flow chart of another discontinuous coverage communication method in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a discontinuous coverage communication device in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another discontinuous coverage communication device according to an embodiment of the present invention.
Detailed Description
In the prior art, when a paging occasion arrives, a terminal device needs to wake up to receive a paging message. However, the last received broadcast SIB32/SIB32-NB message by the terminal device may remain valid for a period of time, which may result in unnecessary power consumption overhead for the terminal device if the terminal device reacquires the SIB32/SIB32-NB message every coverage period during the period of time. In addition, in some coverage periods, no paging occasion corresponding to the terminal equipment exists, so that the terminal equipment cannot normally receive paging information, and unnecessary power consumption overhead of the terminal equipment is caused; or when the terminal equipment wakes up, the service cell corresponding to the terminal equipment is not covered by satellite, so that the terminal equipment cannot normally receive the paging message, and unnecessary power consumption overhead of the terminal equipment is also caused.
In the embodiment of the invention, the terminal equipment acquires N coverage time periods corresponding to the satellites entering the current cell after the current coverage time period according to the first system message. Therefore, the terminal equipment can know the following N coverage time periods, and then wake up to receive the paging message only in the coverage time periods, so that the power consumption can be effectively reduced.
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
First, partial terms related to the embodiments of the present application are explained for easy understanding by those skilled in the art.
1. And a terminal device. The terminal device according to the embodiment of the present invention is a device having a wireless communication function, and may be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal device may be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as LTE, new radio, NR, etc. For example, the terminal device may be a mobile phone, a tablet, a desktop, a notebook, a kiosk, a car-mounted terminal, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless terminal in a self-driving (self-driving), a wireless terminal in a teleoperation (remote medical surgery), a wireless terminal in a smart grid, a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city, a wireless terminal in a smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal in a future mobile communication network, or a public land mobile network (public land mobile network) in a future mobile communication network, etc. In some embodiments of the present application, the terminal device may also be a device with a transceiver function, such as a chip system. The chip system may include a chip and may also include other discrete devices.
2. An access network device. In the embodiment of the present invention, the access network device is a device that provides a wireless communication function for a terminal, and may also be referred to as a radio access network (radio access network, RAN) device, or an access network element, etc. Wherein the access network device may support at least one wireless communication technology, e.g., LTE, NR, etc. By way of example, access network devices include, but are not limited to: a next generation base station (gNB), an evolved node B (eNB), a radio network controller (radio network controller, RNC), a Node B (NB), a base station controller (base station controller, BSC), a base station receiving station (base transceiver station, BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), a receiving point (transmitting and receiving point, TRP), a transmitting point (transmitting point, TP), a mobile switching center, and the like in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in the cloud wireless access network (cloud radio access network, CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communications or an access network device in a future evolved PLMN, etc. In some embodiments, the access network device may also be a device, such as a system-on-a-chip, having the functionality to provide wireless communication for the terminal device. By way of example, the chip system may include a chip, and may also include other discrete devices.
In some embodiments, the access network device may also communicate with an internet protocol (Internet Protocol, IP) network, such as the internet, a private IP network, or other data network, among others.
The embodiment of the invention provides a communication method of discontinuous coverage, and the detailed description is given below through specific steps with reference to fig. 1.
In the embodiment of the present invention, the communication method of discontinuous coverage corresponding to the following steps 101 to 102 may be executed by a chip with data processing capability in the terminal device, or by a chip module including the chip with data processing capability in the terminal device. The following description will take a terminal device as an execution body as an example.
Step 101, acquiring a broadcasted first system message in a current coverage period.
In the embodiment of the invention, the terminal equipment can acquire the first system message broadcasted by the access network equipment in the current coverage time period.
In an implementation, the first system message broadcast by the access network device may be a SIB32 message, or a SIB32-NB message. The terminal device may acquire a first system message broadcasted by the access network device in the current coverage period. The first system message may include: n coverage time periods corresponding to the satellites entering the current cell after the current coverage time period are larger than or equal to 1. The current cell may be a serving cell in which the terminal device is currently camping.
In implementations, the first system message may also include satellite ephemeris information for the next coverage of the current cell.
In the embodiment of the present invention, the coverage period corresponding to the satellite entering the current cell may include: time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
In a specific implementation, the coverage period corresponding to the satellite entering the current cell may be: and entering a coverage time period corresponding to the satellite of the current cell within a preset time period after the current coverage time period.
That is, the terminal device may re-wake up within a coverage period corresponding to a satellite entering the current cell. In other words, the terminal device wakes up only for the coverage period in which the current cell is covered by the satellite. If the current cell is not covered by the satellite, the terminal equipment does not need to wake up, so that the power consumption of the terminal equipment can be effectively reduced.
In a specific implementation, the specific value of the preset duration may be related to a specific application scenario. The preset time period may be 10 minutes, 20 minutes or other time periods.
Referring to fig. 2, a timing diagram of a coverage period in an embodiment of the present invention is provided. GAPs (GAPs) exist between the current coverage period T0 and the first coverage period T1, between the first coverage period T1 and the second coverage period T2, between the second coverage period T2 and the third coverage period T3, and between the third coverage period T3 and the fourth coverage period T4, and the GAPs (GAPs) mean that the current cell has no satellite coverage.
The start time of the current coverage period T0 (i.e., the time when the satellite enters the current cell) is T0, and the end time of the current coverage period T0 (i.e., the time when the satellite leaves the current cell) is T1. The starting time of the first coverage period T1 is T2, the starting time of the second coverage period T2 is T3, the starting time of the third coverage period T3 is T4, and the starting time of the fourth coverage period T4 is T5.
During the current coverage period T0, the first system message broadcast by the access network device includes: the first coverage period T1, the second coverage period T2, the third coverage period T3, and the fourth coverage period T4. The satellite coverage current cell exists in the first coverage period T1, the second coverage period T2, the third coverage period T3 and the fourth coverage period T4. It should be noted that, the satellites passing through the current cell may be different satellites in the first coverage period T1, the second coverage period T2, the third coverage period T3, and the fourth coverage period T4.
After the current coverage time period T0 is finished, when the time reaches the time T2, the coverage time period T1 (T2-t2+ [ delta ] T, wherein [ delta ] T is the stay time of the satellite in the current cell) corresponding to the time T2 is the current coverage time period. At this time, the first system message broadcast by the access network device includes: the second coverage period T2, the third coverage period T3, the fourth coverage period T4, and the fifth coverage period (not shown in fig. 2). The fifth coverage period is adjacent to the fourth coverage period T4 and is located sequentially after the fourth coverage period T4.
When the time reaches the time T3, the coverage time period T2 (T3-t3+ [ delta ] T, wherein [ delta ] T is the stay time of the satellite in the current cell) corresponding to the time T3 is the current coverage time period. At this time, the coverage period included in the first system message broadcast by the access network device is as follows: the third coverage period T3, the fourth coverage period T4, the fifth coverage period, and the sixth coverage period (not shown in fig. 2). The fifth sixth coverage period is adjacent to and temporally following the fifth coverage period.
By analogy, each time the access network device broadcasts the first system message, the first system message may include: and within the preset duration, N coverage time periods corresponding to satellites entering the current cell after the current coverage time period.
It can be seen that, as time goes by, the time corresponding to the current coverage period also changes, and accordingly, the coverage period contained in the first system message may also correspondingly change.
In the embodiment of the present invention, the coverage period corresponding to the satellite entering the current cell may also be: and after the current coverage time period before the preset time arrives, N coverage time periods corresponding to satellites entering the current cell.
Continuing with the above example, the preset time is t6. In the current coverage period T0, the coverage period included in the first system message broadcast by the access network device is as follows: the first coverage period T1, the second coverage period T2, the third coverage period T3, and the fourth coverage period T4.
After the current coverage time period is finished, when the time reaches the time T2, the coverage time period T1 corresponding to the time T2 is the current coverage time period. At this time, the coverage period included in the first system message broadcast by the access network device is as follows: the second coverage period T2, the third coverage period T3, and the fourth coverage period T4.
When the time reaches the time T3, the coverage time period T2 corresponding to the time T3 is the current coverage time period. At this time, the coverage period included in the first system message broadcast by the access network device is as follows: the third coverage period T3 and the fourth coverage period T4.
When the time reaches the time T4, the coverage time period T3 corresponding to the time T4 is the current coverage time period. At this time, the coverage period included in the first system message broadcast by the access network device is as follows: a fourth coverage period T4.
It can be seen that the moment corresponding to the current coverage period changes with time. Because the moment carried in the first system message is earlier than the preset moment, the moment corresponding to the current coverage time period is different, and the coverage time period contained in the first system message can also be correspondingly changed.
In summary, since the terminal device can know N coverage periods after the current coverage period, and wake up to receive the paging message only in the N coverage periods, the power consumption can be effectively reduced.
In a specific implementation, the first system message may further include a validity duration corresponding to the first system message. The terminal device may not need to reacquire the first system message within the validity duration of the first system message.
In the embodiment of the invention, the terminal equipment does not need to acquire the first system message again within the validity duration range of the first system message, which can be as follows: the terminal device may wake up within the validity duration of the first system message, but need not reacquire the first system message.
For example, the coverage period included in the first system message broadcast by the access network device in the current coverage period T0 is as follows: the first coverage period T1, the second coverage period T2, the third coverage period T3, and the fourth coverage period T4.
The validity duration corresponding to the first system message is δ1, and t1+δ1 is later in time sequence than the end time of the second coverage period T2 and earlier than the start time of the third coverage period T3. Thus, during the first coverage period T1 and the second coverage period T2, the first system message is within the validity period. During the third coverage period T3, the first system message is outside of the validity period.
Thus, the terminal device may wake up in the first coverage period T1 and the second coverage period T2, but need not reacquire the first system message, and the terminal device needs to wake up and reacquire the first system message in the third coverage period T3.
In the embodiment of the present invention, within the validity duration range of the first system message, the terminal device may not need to reacquire the first system message, and may also refer to:
and if the paging message is not required to be monitored within the validity duration range of the first system message, the terminal equipment is not required to wake up, and the first system message is not required to be acquired again.
For example, the terminal device does not need to monitor the paging message in the first coverage period T1 and the second coverage period T2, and needs to monitor the paging message in the third coverage period T3. The terminal device does not need to wake up in the first coverage period T1 and the second coverage period T2, so that power consumption can be further reduced. The terminal device wakes up in the third coverage period T3, listens for paging messages and reacquires the first system message.
By setting the validity duration of the first system message, the terminal device does not need to reacquire the first system message at each wakeup, i.e. unnecessary acquisition of the first system message is reduced.
The terminal equipment wakes up and reacquires the first system message in the coverage time period of receiving the paging message; the terminal device does not need to wake up during the coverage period when no paging message is received. Thereby, the power consumption of the terminal device can be further reduced.
In a specific implementation, if there are multiple coverage time periods associated with paging occasions within the validity duration, the terminal device may wake up in the coverage time period associated with the last paging occasion, monitor the paging message, and reacquire the first system message.
For example, the validity duration corresponding to the first system message is δ2, and t1+δ2 is later in time sequence than the end time of the third coverage period T3 and earlier than the start time of the fourth coverage period T4.
The terminal device needs to receive the paging message in the first coverage period T1, the second coverage period T2 and the third coverage period T3. Therefore, the terminal device needs to wake up in the first coverage period T1, the second coverage period T2, and the third coverage period T3.
The terminal equipment does not need to reacquire the first system message in the first coverage period T1 and the second coverage period T2, and only reacquires the first system message in the third coverage period T3.
It can be seen that if it is determined whether to reacquire the first system message according to the coverage period of the received paging message within the validity period of the first system message, the acquisition frequency of the first system message may be further reduced.
Step 102, calculating paging occasion according to paging cycle, and determining coverage time period of paging occasion and/or reacquiring coverage time period of first system message according to paging occasion and first system message.
In the embodiment of the present invention, the step 102 is an optional step.
In an implementation, the terminal device may calculate the paging occasion according to the paging cycle. The specific method for calculating the paging occasion by the terminal device can refer to the prior art, and the embodiment of the invention is not repeated.
After calculating the paging occasions, the terminal device may determine which of the N coverage periods the paging occasions are associated with. The paging occasion is associated with a coverage period, and may refer to: the time corresponding to the paging occasion is located within the coverage time period.
For example, if the time corresponding to the paging occasion is T2', T2' located within the range of the first coverage period T1, it is determined that the paging occasion is associated with the first coverage period T1.
After determining the coverage period associated with the paging occasion, the terminal device may wake up during the associated coverage period and receive the paging message. As in the above embodiments, the terminal device may also reacquire the first system message during the coverage period of receiving the paging message.
Therefore, the terminal device may determine the coverage period of the paging occasion and the first system message, and may also determine the coverage period of the reacquiring the first system message (may be the same as the coverage period of the paging occasion).
Continuing with the above example, if it is determined that the paging occasion is associated with the first coverage period T1, the terminal device may wake up during the first coverage period T1 and receive the paging message.
In the embodiment of the present invention, the access network device may broadcast a threshold value of a time interval in advance, where the time interval may be: the time interval between the paging occasion and the start instant of the associated coverage period. If the time interval between the paging occasion and the starting moment of a certain coverage time period is smaller than or equal to the threshold value of the time interval, the terminal equipment wakes up and monitors the paging message in the coverage time period.
For example, the threshold value of the time interval previously broadcast by the access network device is δ. The terminal device detects that the time interval between the paging occasion and the starting time T3 of the second coverage period T2 is smaller than delta, and wakes up and listens for the paging message in the second coverage period T2.
In an implementation, the terminal device may also calculate the paging transmission window start point according to the paging cycle. The specific method for calculating the paging transmission window start point by the terminal device can refer to the prior art, and the embodiment of the invention is not repeated.
After calculating the paging transmission window start point, the terminal device may determine which of the N coverage periods the paging transmission window start point is associated with. The paging transmission window start point is associated with the coverage period, and may refer to: and the moment corresponding to the starting point of the paging transmission window is positioned in the coverage time period range.
After determining the coverage period associated with the beginning of the paging transmission window, the terminal device may wake up during the associated coverage period and receive the paging message.
In the implementation of the present invention, the access network device may broadcast a threshold value of a time interval in advance, where the time interval may also be: the time interval between the start of the paging transmission window and the start instant of the associated coverage period. If the time interval between the starting point of the paging transmission window and the starting time of a certain coverage time period is less than or equal to the threshold value of the time interval, the terminal equipment wakes up and monitors the paging message in the coverage time period.
Therefore, when the paging occasion or the starting point of the paging transmission window arrives, the terminal equipment wakes up and reacquires the first system message, so that accurate monitoring of the paging message can be ensured.
Referring to fig. 3, another method for communication with discontinuous coverage in an embodiment of the present invention is shown, and will be described in detail by specific steps.
In the embodiment of the present invention, the communication method of discontinuous coverage corresponding to step 301 and steps 101 to 102 described below may be executed by a chip with data processing capability in an access network device, or by a chip module including the chip with data processing capability in the access network device.
Step 301, broadcasting and transmitting a first system message in the current coverage period.
In an implementation, the first system message broadcast by the access network device may be a SIB32 message, or a SIB32-NB message. The terminal device may acquire a first system message broadcasted by the access network device in the current coverage period. The first system message may include: n coverage time periods corresponding to the satellites entering the current cell after the current coverage time period are larger than or equal to 1. The current cell may be a serving cell in which the terminal device is currently camping.
In implementations, the first system message may also include satellite ephemeris information for the next coverage of the current cell.
In the embodiment of the present invention, the coverage period corresponding to the satellite entering the current cell may include: time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
In an implementation, the coverage period corresponding to the satellite entering the current cell may be: and within a preset time period after the current coverage time period, N coverage time periods corresponding to satellites entering the current cell after the current coverage time period.
In a specific implementation, the coverage period corresponding to the satellite entering the current cell may also be: and N coverage time periods corresponding to satellites entering the current cell after the current coverage time period are reached before the preset time.
In a specific implementation, the first system message may further include a validity duration corresponding to the first system message.
In the embodiment of the present invention, the operations performed by the terminal device after receiving the first system message may correspond to the steps 101 to 102, which are not described herein.
Referring to fig. 4, a non-continuous coverage communication device 40 in an embodiment of the invention is shown, comprising: an acquisition unit 401, wherein:
an obtaining unit 401, configured to obtain, in a current coverage period, a broadcasted first system message, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
In an implementation, the non-continuous coverage communication device 40 may further include: a determining unit 402, configured to calculate a paging occasion or a paging transmission window start point according to the paging cycle, and determine a coverage period for reacquiring the first system message according to the paging occasion or the paging transmission window seven point and the first system message.
In a specific implementation, the above-mentioned communication device 40 with discontinuous coverage may correspond to a chip with a data processing function in a terminal device; or corresponds to a chip module including a chip having a data processing function in the terminal device, or corresponds to the terminal device.
Referring to fig. 5, another non-continuous coverage communication device 50 in an embodiment of the invention is shown, comprising: a sending unit 501, configured to broadcast and send, in a current coverage period, a first system message, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
In specific implementation, the specific implementation process of the sending unit 501 may correspond to the reference step 301, which is not described herein.
In a specific implementation, the above-mentioned communication device 50 with discontinuous coverage may correspond to a chip with a data processing function in the access network device; or corresponds to a chip module in the access network device comprising a chip with data processing functions, or corresponds to the access network device.
In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.
For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The embodiment of the present invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, the computer program, when executed by a processor, performs the steps of the discontinuous coverage communication method provided by steps 101 to 102, or performs the steps of the discontinuous coverage communication method provided by step 301.
The embodiment of the invention also provides a communication device with discontinuous coverage, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of the communication method with discontinuous coverage provided in the steps 101-102 or the step of the communication method with discontinuous coverage provided in the step 301 when running the computer program.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs related hardware, the program may be stored on a computer readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, etc.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims (18)

1. A communication method of discontinuous coverage, applied to a terminal device, comprising:
acquiring a first system message broadcasted in a current coverage time period, wherein the first system message comprises: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
2. The discontinuous coverage communication method according to claim 1, wherein,
the coverage time period corresponding to the satellite entering the current cell comprises the following steps: the time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
3. The discontinuous coverage communication method according to claim 2, wherein the coverage time period corresponding to the satellite entering the current cell is: and entering a coverage time period corresponding to the satellite of the current cell within a preset time period after the current coverage time period.
4. The discontinuous coverage communication method according to claim 2, wherein the coverage time period corresponding to the satellite entering the current cell is: before the preset time, entering a coverage time period corresponding to the satellite of the current cell.
5. The discontinuous coverage communication method according to claim 1, wherein said first system message further includes a validity period; after acquiring the broadcasted first system message, further comprising:
determining to reacquire the coverage time period of the first system message based on the coverage time periods corresponding to the N satellites entering the current cell and the validity duration;
and waking up and reacquiring the first system message according to the coverage time period of reacquiring the first system message.
6. The discontinuous coverage communication method according to claim 1, further comprising, after acquiring the broadcasted first system message:
predicting paging time or a paging transmission window starting point according to the paging cycle;
determining the coverage time periods associated with the paging occasions or the paging transmission windows according to the coverage time periods corresponding to the N satellites entering the current cell;
and waking up in the associated coverage time period and monitoring paging messages.
7. The discontinuous coverage communication method according to claim 6, further comprising: and re-acquiring the first system message according to the associated coverage time period.
8. The discontinuous coverage communication method according to claim 7, wherein said first system message further includes a validity period; the re-acquiring the first system message according to the associated coverage time period includes:
and if a plurality of associated coverage time periods exist in the validity duration, re-acquiring the first system message in the last associated coverage time period.
9. The method of communication of discontinuous coverage according to claim 6, wherein said waking up within said associated coverage time period comprises:
and when detecting that the time interval between the paging occasion or the starting point of the paging transmission window and the starting time of the associated coverage time period is smaller than a preset threshold value, waking up in the associated coverage time period.
10. The discontinuous coverage communication method according to claim 9, wherein the preset threshold value is issued by the access network device by broadcasting.
11. A discontinuous coverage communication method applied to an access network device, comprising:
broadcasting and transmitting a first system message in the current coverage time period, wherein the first system message comprises the following components: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
12. The method of discontinuous coverage communication according to claim 11, wherein the coverage time period corresponding to the satellite entering the current cell includes: the time information of the satellite entering the current cell; the time information of the satellite leaving the current cell or the stay time of the satellite in the current cell.
13. The method for discontinuous coverage communication according to claim 12, wherein the coverage time period corresponding to the satellite entering the current cell is: and entering a coverage time period corresponding to the satellite of the current cell within a preset time period after the current coverage time period.
14. The method for discontinuous coverage communication according to claim 12, wherein the coverage time period corresponding to the satellite entering the current cell is: before the preset time, entering a coverage time period corresponding to the satellite of the current cell.
15. A communication apparatus for discontinuous coverage, applied to a terminal device, comprising:
an acquiring unit, configured to acquire a broadcasted first system message in a current coverage period, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
16. A discontinuous coverage communication device for use in an access network apparatus, comprising: a sending unit, configured to broadcast and send a first system message in a current coverage period, where the first system message includes: n coverage time periods corresponding to satellites entering the current cell after the current coverage time period; n is more than or equal to 1.
17. A computer readable storage medium, the computer readable storage medium being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the discontinuous coverage communication method according to any of claims 1-10; alternatively, the steps of the discontinuous coverage communication method according to any of claims 11 to 14 are performed.
18. A discontinuous coverage communication device comprising a memory and a processor, said memory having stored thereon a computer program executable on said processor, characterized in that said processor, when executing said computer program, performs the steps of the discontinuous coverage communication method according to any of claims 1-10; alternatively, the steps of the discontinuous coverage communication method according to any of claims 11 to 14 are performed.
CN202210760678.4A 2022-06-30 2022-06-30 Communication method and device for discontinuous coverage and computer readable storage medium Pending CN117377036A (en)

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