CN110691411A - System information receiving method and system information configuration and sending method - Google Patents
System information receiving method and system information configuration and sending method Download PDFInfo
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- CN110691411A CN110691411A CN201810723851.7A CN201810723851A CN110691411A CN 110691411 A CN110691411 A CN 110691411A CN 201810723851 A CN201810723851 A CN 201810723851A CN 110691411 A CN110691411 A CN 110691411A
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- 238000004891 communication Methods 0.000 claims abstract description 43
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
- H04W68/025—Indirect paging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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Abstract
The invention provides a method and a device for receiving system information, a method and a device for configuring and sending the system information, and communication equipment. The method for receiving the system information comprises the following steps: receiving and demodulating paging downlink control information, and acquiring an information bearing indicator which indicates bearing information of system information in a paging message; and receiving the system information in the paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator. By adopting the technical scheme of the invention, the system information (the set of the system information to be updated) is received in the paging message of the current system information updating period and/or the next system information updating period, so that the time delay of updating the system information can be reduced, the terminal can acquire the updated information of the system as early as possible to keep a good communication state, and the system performance is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for receiving system information, a method and an apparatus for configuring and sending system information, and a communication device.
Background
With the development of the times, the demand of people for communication is not limited to simple data transmission, but a communication system is required to be more intelligent and appropriate to serve the production life of people, which means that a 5G system needs to have more powerful and comprehensive business support capability. Therefore, researchers introduce a brand-new air interface technology-nr (new radio) with a more reasonable physical layer time-frequency resource structure and various flexible and efficient signaling scheduling strategies for the 5G system, so as to ensure that the 5G system can be greatly improved in the aspects of resource configuration flexibility and transmission delay.
However, in the present discussion, the system information update mechanism of 5G has not changed much for the moment, and it will continue to follow the manner in 4G system, i.e. the update of system information only occurs in some specific system frames. As shown in fig. 1, in this manner, there is a concept of an update period, system information may be transmitted multiple times in the update period, but in the same update period, the content of the system information does not change, when a cell modifies some system information, it first notifies a User Equipment (UE) that the system information will change in one update period (but does not send the updated content), and then in the next update period, the cell sends the updated system information. When the UE receives a system information update notification, it will receive new system information from the beginning of the next update period, and the UE will continue to use the old system information before receiving the new system information. The current way of system information update notification is as follows: the cell notifies the UE in a connected or idle state that the system information changes by using a Paging message with a shorter sending period, where the Paging message includes a systemlnfo modification field, and if the Paging message received by the UE includes the field, it indicates that the system information will change in the next update period. The Paging message is carried in a Physical Downlink Shared Channel (PDSCH), as shown in fig. 2, the UE first needs to receive a Physical Downlink Control Channel (PDCCH) scrambled by a specified temporary network identifier, obtain a position of the Paging message in the PDSCH according to Paging scheduling information in Paging Downlink Control Information (DCI) carried in the PDCCH, and then demodulate the Paging message. Obviously, the system information updating method cannot allow the UE to acquire new system information in time, however, if an important system parameter is changed in actual communication and the UE cannot acquire and correct in time, the communication of the UE may be seriously affected.
In consideration of reducing signaling transmission delay and resource overhead, the systemlnfommodificationfield, the earthquake and tsunami warning information, the business mobile alarm service information and the like in the Paging message are modified to be transmitted by the Paging DCI, but the communication problem caused by longer system information updating delay is not solved by the modification. Therefore, the configuration and transmission method of the system information still needs to be designed and optimized.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, an aspect of the present invention is to provide a method for receiving system information.
Another aspect of the present invention is to provide a method for configuring and transmitting system information.
Still another aspect of the present invention is to provide a system information receiving apparatus.
The invention also provides a device for configuring and transmitting the system information.
Yet another aspect of the present invention is to provide a communication device.
In view of the above, according to an aspect of the present invention, a method for receiving system information is provided, which is applied to a terminal, and the method includes: receiving and demodulating paging downlink control information, and acquiring an information bearing indicator which indicates bearing information of system information in a paging message; and receiving the system information in the paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator.
In the method for receiving system information provided by the present invention, the terminal receives the Paging DCI and demodulates the Paging DCI to obtain the information bearing indicator carried in the Paging DCI, where the information bearing indicator is used to indicate the bearing information of the system information (i.e. the set of system information to be updated) in the Paging message, i.e. the bearing condition of the system information. Further, the terminal receives the system information in the Paging message of the current system information updating period and/or the next system information updating period according to the bearer information. By adopting the technical scheme of the invention, the system information (the set of the system information to be updated) is received in the Paging message of the current system information updating period and/or the next system information updating period, so that the time delay of updating the system information can be reduced, the terminal can acquire the updated information of the system as early as possible to keep a good communication state, and the system performance is improved.
The system information receiving method according to the present invention may further include the following technical features:
in the above technical solution, preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information is not carried in the paging message.
In the technical scheme, multiple system information bearing conditions exist in the Paging message, for example, the system information borne in the Paging message is all system information, or part of system information, or no system information is borne in the Paging message, so that the system information is received in different manners according to different bearing conditions, the timeliness of receiving the system information by the terminal is ensured, and the communication error rate is reduced.
In any of the above technical solutions, preferably, receiving the system information in the paging message of the current system information update period and/or the next system information update period specifically includes: when the system information carried in the paging information is all system information, receiving all system information in the paging information of the current system information updating period; when the system information carried in the paging information is partial system information, receiving partial system information in the paging information of the current system information updating period and receiving other parts of the system information in the next system information updating period; and when the bearing information is not bearing the system information in the paging message, receiving all the system information in the next system information updating period.
In the technical scheme, when the system information carried in the Paging message is all the system information, all the system information is received in the Paging message of the current system information updating period, and the system information is not received in the next system information updating period. When the system information carried in the Paging message is part of system information, the part of system information is received in the Paging message in the current system information updating period, and the other part of system information is received in the next system information updating period, for example, when the Paging message carries part a of system information but does not carry part B of system information (a + B is updated all system information), the terminal receives part a of system information in the Paging message, and receives part B of system information in the next system information updating period, that is, all system information is received in the Paging message in the current system information updating period and in the next system information updating period. When the Paging message does not carry the system information, receiving all the system information in the next system information updating period. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
According to another aspect of the present invention, a method for configuring and transmitting system information is provided, which is applied to a base station, and the method includes: setting an information bearing indicator in paging downlink control information, wherein the information bearing indicator indicates bearing information of system information in a paging message; and sending the paging downlink control information to the terminal so that the terminal can receive the system information according to the information bearing indicator.
According to the configuration and sending method of the system information, when the system information is updated, the base station configures the information bearing indicator in the pagingDCI, and the information bearing indicator is used for indicating the bearing information of the system information to be updated in the pagingDCI, namely the bearing condition of the system information to be updated. Further, the Paging DCI is sent to the terminal, so that the terminal receives the system information required to be updated in the Paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator. The technical scheme of the invention designs and optimizes the configuration and sending method of the system information to be updated, can reduce the updating time delay of the system information, enables the terminal to acquire the updated information of the system as early as possible so as to keep a good communication state and improves the system performance.
According to the configuration and transmission method of the system information of the present invention, the following technical features may be further provided:
in the above technical solution, preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information is not carried in the paging message.
In the technical scheme, multiple types of system information bearing conditions exist in the Paging message, for example, the system information borne in the Paging message is all system information to be updated, or part of the system information to be updated, or the system information to be updated is not borne in the Paging message, so that the timeliness of sending the system information is ensured, and the communication error rate is reduced.
In any of the above technical solutions, preferably, when the system information carried in the paging message is all system information or the system information carried in the paging message is partial system information, the method further includes: configuring all system information or configuring partial system information for the terminal, and loading all system information or partial system information in a paging message; and sending the paging message to the terminal.
In the technical solution, when all system information or part of system information is modified, the base station may carry the all system information or the part of system information in a Paging message, and send the Paging message to the terminal. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
According to another aspect of the present invention, there is provided an apparatus for receiving system information, which is applied to a terminal, the apparatus including: a receiving module, configured to receive and demodulate paging downlink control information; an obtaining module, configured to obtain an information bearing indicator, where the information bearing indicator indicates bearing information of system information in a paging message; and the receiving module is further used for receiving the system information in the paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator.
In the receiving apparatus of system information provided by the present invention, the terminal receives the Paging DCI and demodulates the Paging DCI to obtain the information carrying indicator carried in the Paging DCI, where the information carrying indicator is used to indicate the carrying information of the system information (i.e. the set of system information to be updated) in the Paging message, i.e. the carrying condition of the system information. Further, the terminal receives the system information in the Paging message of the current system information updating period and/or the next system information updating period according to the bearer information. By adopting the technical scheme of the invention, the system information (the set of the system information to be updated) is received in the Paging message of the current system information updating period and/or the next system information updating period, so that the time delay of updating the system information can be reduced, the terminal can acquire the updated information of the system as early as possible to keep a good communication state, and the system performance is improved.
The system information receiving apparatus according to the present invention may further include:
in the above technical solution, preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information is not carried in the paging message.
In the technical scheme, multiple system information bearing conditions exist in the Paging message, for example, the system information borne in the Paging message is all system information, or part of system information, or no system information is borne in the Paging message, so that the system information is received in different manners according to different bearing conditions, the timeliness of receiving the system information by the terminal is ensured, and the communication error rate is reduced.
In any of the above technical solutions, preferably, the receiving module is specifically configured to: when the system information carried in the paging information is all system information, receiving all system information in the paging information of the current system information updating period; when the system information carried in the paging information is partial system information, receiving partial system information in the paging information of the current system information updating period and receiving other parts of the system information in the next system information updating period; and when the bearing information is not bearing the system information in the paging message, receiving all the system information in the next system information updating period.
In the technical scheme, when the system information carried in the Paging message is all the system information, all the system information is received in the Paging message of the current system information updating period, and the system information is not received in the next system information updating period. When the system information carried in the Paging message is part of system information, the part of system information is received in the Paging message in the current system information updating period, and the other part of system information is received in the next system information updating period, for example, when the Paging message carries part a of system information but does not carry part B of system information (a + B is updated all system information), the terminal receives part a of system information in the Paging message, and receives part B of system information in the next system information updating period, that is, all system information is received in the Paging message in the current system information updating period and in the next system information updating period. When the Paging message does not carry the system information, receiving all the system information in the next system information updating period. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
According to another aspect of the present invention, an apparatus for configuring and transmitting system information is provided, which is applied to a base station, and includes: a configuration module, configured to set an information carrying indicator in the paging downlink control information, where the information carrying indicator indicates carrying information of the system information in the paging message; and the sending module is used for sending the paging downlink control information to the terminal so that the terminal can receive the system information according to the information bearing indicator.
According to the device for configuring and sending the system information, when the system information is updated, the base station configures the information bearing indicator in the pagingDCI, and the information bearing indicator is used for indicating the bearing information of the system information to be updated in the pagingDCI, namely the bearing condition of the system information to be updated. Further, the Paging DCI is sent to the terminal, so that the terminal receives the system information to be updated in the Paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator. The technical scheme of the invention designs and optimizes the configuration and sending method of the system information to be updated, can reduce the updating time delay of the system information, enables the terminal to acquire the updated information of the system as early as possible so as to keep a good communication state and improves the system performance.
The apparatus for configuring and transmitting system information according to the present invention may further include:
in the above technical solution, preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information is not carried in the paging message.
In the technical scheme, multiple types of system information bearing conditions exist in the Paging message, for example, the system information borne in the Paging message is all system information to be updated, or part of the system information to be updated, or the system information to be updated is not borne in the Paging message, so that the timeliness of sending the system information is ensured, and the communication error rate is reduced.
In any of the above technical solutions, preferably, the configuration module is further configured to configure all system information or configure part of system information for the terminal when the system information carried in the paging message is all system information or the system information carried in the paging message is part of system information, and carry all system information or part of system information in the paging message; and the sending module is also used for sending the paging message to the terminal.
In the technical solution, when all system information or part of system information is modified, the base station may carry the all system information or the part of system information in a Paging message, and send the Paging message to the terminal. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
According to a further aspect of the present invention, there is provided a communication apparatus comprising receiving means of system information as in any one of the above; or any one of the above-mentioned devices for configuring and transmitting system information.
The communication device provided by the invention comprises a receiving device of the system information as any one of the above; or the apparatus for configuring and transmitting system information according to any of the above embodiments, the communication device includes the apparatus for receiving system information or the apparatus for configuring and transmitting system information according to any of the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a diagram illustrating transmission of system information in the related art;
fig. 2 is a diagram illustrating a terminal receiving a Paging message in the related art;
fig. 3 is a flowchart illustrating a method of receiving system information according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method of receiving system information according to another embodiment of the present invention;
fig. 5 is a diagram illustrating a terminal receiving system information according to an embodiment of the present invention;
fig. 6 is a diagram illustrating a terminal receiving system information according to another embodiment of the present invention;
fig. 7 is a flowchart illustrating a method for configuring and transmitting system information according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a method for configuring and transmitting system information according to another embodiment of the present invention;
fig. 9 shows a schematic diagram of a receiving apparatus of system information of an embodiment of the present invention;
fig. 10 is a schematic diagram of a system information configuring and transmitting apparatus according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
An embodiment of the first aspect of the present invention provides a method for receiving system information, which is applied to a terminal, and fig. 3 illustrates a flowchart of the method for receiving system information according to an embodiment of the present invention. Wherein, the method comprises the following steps:
In the method for receiving system information provided by the present invention, the terminal receives the Paging DCI and demodulates the Paging DCI to obtain the information bearing indicator carried in the Paging DCI, where the information bearing indicator is used to indicate the bearing information of the system information (i.e. the set of system information to be updated) in the Paging message, i.e. the bearing condition of the system information. Further, the terminal receives the system information in the Paging message of the current system information updating period and/or the next system information updating period according to the bearer information. By adopting the technical scheme of the invention, the system information (the set of the system information to be updated) is received in the Paging message of the current system information updating period and/or the next system information updating period, so that the time delay of updating the system information can be reduced, the terminal can acquire the updated information of the system as early as possible to keep a good communication state, and the system performance is improved.
Preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information not carried in the paging message.
In this embodiment, multiple types of system information bearing conditions may exist in the Paging message, for example, the system information borne in the Paging message is all system information, or part of system information, or no system information is borne in the Paging message, and then the system information is received in different manners according to different bearing conditions, so that the timeliness of receiving the system information by the terminal is ensured, and the communication error rate is reduced.
Fig. 4 is a flowchart illustrating a method for receiving system information according to another embodiment of the present invention. Wherein, the method comprises the following steps:
In this embodiment, as shown in fig. 5, when the system information carried in the Paging message is part of system information, the part of system information is received in the Paging message of the current system information updating period, and the other part of system information is received in the next system information updating period, so that all updated system information is received; as shown in fig. 6, when the system information carried in the Paging message is all system information, all system information is received in the Paging message of the current system information updating period, and the system information is no longer received in the next system information updating period; when the Paging message does not carry the system information, receiving all the system information in the next system information updating period. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
Fig. 7 is a flowchart illustrating a method for configuring and transmitting system information according to an embodiment of the present invention. Wherein, the method comprises the following steps:
According to the configuration and sending method of the system information, when the system information is updated, the base station configures the information bearing indicator in the pagingDCI, and the information bearing indicator is used for indicating the bearing information of the system information to be updated in the pagingDCI, namely the bearing condition of the system information to be updated. Further, the Paging DCI is sent to the terminal, so that the terminal receives the system information to be updated in the Paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator. The technical scheme of the invention designs and optimizes the configuration and sending method of the system information to be updated, can reduce the updating time delay of the system information, enables the terminal to acquire the updated information of the system as early as possible so as to keep a good communication state and improves the system performance.
Preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information not carried in the paging message.
In this embodiment, multiple types of system information bearing conditions may exist in the Paging message, for example, the system information borne in the Paging message is all system information to be updated, or part of the system information to be updated, or the system information to be updated is not borne in the Paging message, so that the timeliness of sending the system information is ensured, and the communication error rate is reduced.
Fig. 8 is a flowchart illustrating a method for configuring and transmitting system information according to another embodiment of the present invention. Wherein, the method comprises the following steps:
In this embodiment, when all the system information or part of the system information is modified, the base station may carry the all the system information or the part of the system information in a Paging message and send the Paging message to the terminal. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
It should be noted that the order of step 802, step 804, step 806, and step 808 is not limited, that is, the information carrying indicator may be set in the paging downlink control information, the paging downlink control information is sent to the terminal, all system information or part of system information is configured for the terminal, and the paging message is sent to the terminal.
Fig. 9 is a schematic diagram of a system information receiving apparatus 90 according to an embodiment of the present invention. Wherein the device 90 comprises:
a receiving module 902, configured to receive and demodulate paging downlink control information;
an obtaining module 904, configured to obtain an information bearing indicator, where the information bearing indicator indicates bearing information of system information in a paging message;
the receiving module 902 is further configured to receive the system information in the paging message of the current system information update period and/or the next system information update period according to the information carrying indicator.
In the receiving apparatus 90 for system information provided by the present invention, the terminal receives the Paging DCI, and demodulates the Paging DCI to obtain the information carrying indicator carried in the Paging DCI, where the information carrying indicator is used to indicate the carrying information of the system information (i.e. the set of system information to be updated) in the Paging message, i.e. the carrying condition of the system information. Further, the terminal receives the system information in the Paging message of the current system information updating period and/or the next system information updating period according to the bearer information. By adopting the technical scheme of the invention, the system information (the set of the system information to be updated) is received in the Paging message of the current system information updating period and/or the next system information updating period, so that the time delay of updating the system information can be reduced, the terminal can acquire the updated information of the system as early as possible to keep a good communication state, and the system performance is improved.
Preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information not carried in the paging message.
In this embodiment, multiple types of system information bearing conditions may exist in the Paging message, for example, the system information borne in the Paging message is all system information, or part of system information, or no system information is borne in the Paging message, and then the system information is received in different manners according to different bearing conditions, so that the timeliness of receiving the system information by the terminal is ensured, and the communication error rate is reduced.
Preferably, the receiving module 902 is specifically configured to: when the system information carried in the paging information is all system information, receiving all system information in the paging information of the current system information updating period; when the system information carried in the paging information is partial system information, receiving partial system information in the paging information of the current system information updating period and receiving other parts of the system information in the next system information updating period; and when the bearing information is not bearing the system information in the paging message, receiving all the system information in the next system information updating period.
In this embodiment, as shown in fig. 5, when the system information carried in the Paging message is part of system information, the part of system information is received in the Paging message of the current system information updating period, and the other part of system information is received in the next system information updating period, so that all updated system information is received; as shown in fig. 6, when the system information carried in the Paging message is all system information, all system information is received in the Paging message of the current system information updating period, and the system information is no longer received in the next system information updating period; when the Paging message does not carry the system information, receiving all the system information in the next system information updating period. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
Fig. 10 is a schematic diagram of a system information configuring and transmitting apparatus 10 according to an embodiment of the present invention. Wherein the device 10 comprises:
a configuration module 102, configured to set an information carrying indicator in the paging downlink control information, where the information carrying indicator indicates carrying information of the system information in the paging message;
a sending module 104, configured to send the paging downlink control information to the terminal, so that the terminal receives the system information according to the information bearer indicator.
When the system information is updated, the base station configures an information carrying indicator in the Paging DCI, so as to indicate carrying information of the system information to be updated in the Paging message, that is, carrying conditions of the system information to be updated. Further, the Paging DCI is sent to the terminal, so that the terminal receives the system information to be updated in the Paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator. The technical scheme of the invention designs and optimizes the configuration and sending method of the system information to be updated, can reduce the updating time delay of the system information, enables the terminal to acquire the updated information of the system as early as possible so as to keep a good communication state and improves the system performance.
Preferably, the carrying information includes that the system information carried in the paging message is all system information, the system information carried in the paging message is partial system information, or the system information not carried in the paging message.
In this embodiment, multiple types of system information bearing conditions may exist in the Paging message, for example, the system information borne in the Paging message is all system information to be updated, or part of the system information to be updated, or the system information to be updated is not borne in the Paging message, so that the timeliness of sending the system information is ensured, and the communication error rate is reduced.
Preferably, the configuring module 102 is further configured to configure all system information or configure part of system information for the terminal when the system information carried in the paging message is all system information or the system information carried in the paging message is part of system information, and carry all system information or part of system information in the paging message; and the sending module is also used for sending the paging message to the terminal.
In this embodiment, when all the system information or part of the system information is modified, the base station may carry the all the system information or the part of the system information in a Paging message and send the Paging message to the terminal. By using Paging message to carry and transmit all or part of important and urgent system information, the updating period of the system information can be greatly shortened, thereby avoiding communication error between the base station and the terminal caused by untimely updating of the system information.
The problem of communication errors caused by an excessively large system information update period is considered, and the problem is not well solved in the discussion of the 5G standard. In addition, in the current Paging DCI discussion, a part of the short message is transmitted from the Paging message to the Paging DCI in advance, and the space of the Paging message is released, so that in some special scenes, the Paging message is used to carry and transmit part of important and urgent updated system information, and the update period of the system information can be greatly shortened, thereby avoiding the problem of communication errors between the base station and the terminal caused by untimely update of the system information. In an embodiment of the present invention, the base station carries the system information in a Paging message and sends the Paging message to the terminal, and sets an indicator in the Paging DCI to notify the terminal whether the Paging message contains the system information. And the terminal receives the Paging message and/or the system information in the next system information updating period according to the indicator in the Paging DCI. The main technical steps comprise:
(1) the base station configures system information (the system information may be all system information or part of system information) to be updated for the terminal, and loads the system information in a Paging message to send to the terminal.
(2) The base station sets an information bearing indicator in the Paging DCI, wherein the information bearing indicator is used for indicating the system information condition (namely, whether the whole system information or part of the system information is carried) carried in the Paging message scheduled by the Paging DCI.
(3) And the terminal receives and demodulates the Paging DCI configured by the base station, and receives the system information in a corresponding Paging message and/or the next system information updating period according to the information bearing indicator in the Paging DCI.
(4) As shown in fig. 5, if the information carrying indicator indicates that part of the system information is carried in the Paging message, the terminal receives the part of the system information in the Paging message and then receives the other part of the system information at the beginning of the next system information updating period. As shown in fig. 6, if the information carrying indicator indicates that all system information is carried in the Paging message, the terminal receives all system information in the Paging message, and does not receive system information any more when the next system information update period comes.
It should be noted that, if the information carrying indicator indicates that the Paging message does not include any system information, the terminal receives all the system information in the next system information update period according to the systemlnfodification field.
An embodiment of a fifth aspect of the present invention proposes a communication device, including the receiving apparatus of system information as in any one of the above; or any one of the above-mentioned devices for configuring and transmitting system information.
The communication device provided by the invention comprises a receiving device of the system information as any one of the above; or the apparatus for configuring and transmitting system information according to any of the above embodiments, the communication device includes the apparatus for receiving system information or the apparatus for configuring and transmitting system information according to any of the above embodiments.
In the description herein, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A method for receiving system information, which is applied to a terminal, the method comprising:
receiving and demodulating paging downlink control information to obtain an information bearing indicator, wherein the information bearing indicator indicates bearing information of the system information in a paging message;
and receiving the system information in the paging message of the current system information updating period and/or the next system information updating period according to the information bearing indicator.
2. The method for receiving system information according to claim 1,
the carrying information includes that the system information carried in the paging message is all the system information, the system information carried in the paging message is part of the system information or the system information is not carried in the paging message.
3. The method for receiving system information according to claim 2, wherein the receiving the system information in the paging message of the current system information update period and/or the next system information update period specifically includes:
when the system information carried in the paging message is all the system information, receiving all the system information in the paging message of the current system information updating period;
when the system information carried in the paging message is part of the system information, receiving part of the system information in the paging message of the current system information updating period and receiving other parts of the system information in the next system information updating period;
and when the bearing information is that the paging message does not bear the system information, receiving all the system information in the next system information updating period.
4. A method for configuring and transmitting system information is applied to a base station, and the method comprises the following steps:
setting an information bearing indicator in paging downlink control information, wherein the information bearing indicator indicates bearing information of the system information in a paging message;
and sending the paging downlink control information to a terminal so that the terminal can receive the system information according to the information bearing indicator.
5. The method for configuring and transmitting system information according to claim 4,
the carrying information includes that the system information carried in the paging message is all the system information, the system information carried in the paging message is part of the system information or the system information is not carried in the paging message.
6. The method for configuring and transmitting system information according to claim 5, wherein when the system information carried in the paging message is all the system information or part of the system information, further comprising:
configuring all the system information or configuring part of the system information for the terminal, and loading all the system information or part of the system information in the paging message;
and sending the paging message to the terminal.
7. An apparatus for receiving system information, applied to a terminal, the apparatus comprising:
a receiving module, configured to receive and demodulate paging downlink control information;
an obtaining module, configured to obtain an information bearing indicator, where the information bearing indicator indicates bearing information of the system information in a paging message;
the receiving module is further configured to receive the system information in the paging message of the current system information update period and/or the next system information update period according to the information bearing indicator.
8. The apparatus for receiving system information according to claim 7,
the carrying information includes that the system information carried in the paging message is all the system information, the system information carried in the paging message is part of the system information or the system information is not carried in the paging message.
9. The apparatus for receiving system information according to claim 8, wherein the receiving module is specifically configured to:
when the system information carried in the paging message is all the system information, receiving all the system information in the paging message of the current system information updating period;
when the system information carried in the paging message is part of the system information, receiving part of the system information in the paging message of the current system information updating period and receiving other parts of the system information in the next system information updating period;
and when the bearing information is that the paging message does not bear the system information, receiving all the system information in the next system information updating period.
10. An apparatus for configuring and transmitting system information, applied to a base station, the apparatus comprising:
a configuration module, configured to set an information carrying indicator in paging downlink control information, where the information carrying indicator indicates carrying information of the system information in a paging message;
and the sending module is used for sending the paging downlink control information to a terminal so that the terminal can receive the system information according to the information bearing indicator.
11. The apparatus for configuring and transmitting system information according to claim 10,
the carrying information includes that the system information carried in the paging message is all the system information, the system information carried in the paging message is part of the system information or the system information is not carried in the paging message.
12. The apparatus for configuring and transmitting system information according to claim 11,
the configuration module is further configured to configure all the system information or configure part of the system information for the terminal and carry all the system information or part of the system information in the paging message when the carrying information is that the system information carried in the paging message is all the system information or that the system information carried in the paging message is part of the system information;
the sending module is further configured to send the paging message to the terminal.
13. A communication device, comprising:
a receiving apparatus of system information according to any one of claims 7 to 9; or the apparatus for configuring and transmitting system information according to claim 10 or 12.
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| CN110691411B (en) | 2022-04-15 |
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