CN110621049B - Communication method and device of dual-mode terminal and dual-mode terminal - Google Patents

Communication method and device of dual-mode terminal and dual-mode terminal Download PDF

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CN110621049B
CN110621049B CN201810632136.2A CN201810632136A CN110621049B CN 110621049 B CN110621049 B CN 110621049B CN 201810632136 A CN201810632136 A CN 201810632136A CN 110621049 B CN110621049 B CN 110621049B
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cell
dual
network system
mode terminal
condition
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CN110621049A (en
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翁玮文
潘璐
曹蕾
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a communication method and a communication device of a dual-mode terminal and the dual-mode terminal, wherein the dual-mode terminal supports a first network system and a second network system, and the method comprises the following steps: searching a cell of a first network system; under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell; the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system; the communication method can enable the dual-mode terminal to efficiently coordinate the interoperation of two networks, ensure the smooth operation of services, and facilitate the dual-mode terminal to provide better support for various services on a narrow-band Internet of things system.

Description

Communication method and device of dual-mode terminal and dual-mode terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a dual-mode terminal, a communications method and an apparatus for the same.
Background
In the prior art, coverage is insufficient for NB-IoT (Narrow Band Internet of Things) network in the early stage, and NB-IoT can not provide a voice solution. The current NB-IoT network has a large communication delay in a poor signal area, and in a connected state, an NB-IoT terminal can reside in another NB-IoT cell or other cell of a cellular mobile communication system only after Radio Link Failure (RLF) occurs, which results in poor service experience.
Disclosure of Invention
The invention aims to provide a communication method and a communication device of a dual-mode terminal and the dual-mode terminal, and aims to solve the problem that the service experience of the dual-mode terminal is poor due to the fact that an interoperation mechanism between an Internet of things network of the dual-mode terminal and other cellular mobile communication networks is undefined in the prior art.
In order to solve the above problem, an embodiment of the present invention provides a communication method for a dual mode terminal, where the dual mode terminal supports a first network system and a second network system, and the method includes:
searching a cell of a first network system;
under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system.
Wherein, under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, the packet domain residing in the first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
Wherein, under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, the method further comprises the following steps:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the second cell of the second network system is larger than a third preset value, the circuit domain and the packet domain of the dual-mode terminal reside in the second cell.
Wherein, under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the method further comprises the following steps:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of a third cell of the second network system is larger than a fourth preset value, the dual-mode terminal packet domain resides in the third cell.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain of the dual-mode terminal resides in the first cell, and the method further comprises:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
Wherein after the packet domain of the dual-mode terminal is camped on the first cell, the method further comprises:
the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is larger than a sixth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
Wherein the method further comprises:
and setting the first network system as forbidden access in a target time period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the packet domain of the dual-mode terminal resides in the first cell, and the method further comprises:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
Wherein, after the circuit domain and the packet domain of the dual mode terminal are both camped in the fifth cell, the method further comprises:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the packet domain of the dual-mode terminal resides in the first cell, and the method further comprises:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the packet domain of the dual-mode terminal resides in the first cell, and the method further comprises:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
Wherein, the packet domain of the dual-mode terminal resides in the first cell, and the circuit domain of the dual-mode terminal resides in the fourth cell, the method further comprises:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; or,
and under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell.
Wherein, under the condition that the packet domain and the circuit domain of the dual-mode terminal both reside in the cell of the second network system, the method further comprises:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the method further comprises the following steps that after the packet domain of the dual-mode terminal resides in the first cell:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the method further comprises the following steps that after the packet domain of the dual-mode terminal resides in the first cell:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
An embodiment of the present invention further provides a communication apparatus for a dual-mode terminal, where the dual-mode terminal supports a first network system and a second network system, and the apparatus includes:
the first searching module is used for searching a cell of a first network system;
the first resident module is used for residing in a packet domain of the dual-mode terminal in a first cell of a first network system under the condition that a searched signal threshold value of the first cell is greater than a first preset value;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system.
An embodiment of the present invention further provides a dual-mode terminal, where the dual-mode terminal supports a first network system and a second network system, and the dual-mode terminal includes a processor and a transceiver, and the transceiver is configured to execute the following processes:
searching a cell of a first network system;
the processor is used for executing the following processes:
under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system.
Wherein, under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, the packet domain residing in the first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the processor is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the second cell of the second network system is larger than a third preset value, the circuit domain and the packet domain of the dual-mode terminal reside in the second cell.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the processor is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of a third cell of the second network system is larger than a fourth preset value, the dual-mode terminal packet domain resides in the third cell.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the processor is further configured to, after the packet domain of the dual-mode terminal resides in the first cell:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
Wherein the processor is further configured to:
after the packet domain of the dual-mode terminal resides in the first cell, the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is larger than a sixth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
Wherein the processor is further configured to:
and setting the first network system as forbidden access in a target time period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
Wherein, after the circuit domain and the packet domain of the dual mode terminal both reside in the fifth cell, the processor is further configured to:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
Wherein, the processor is further configured to, in a case that the packet domain of the dual mode terminal resides in the first cell and the circuit domain of the dual mode terminal resides in the fourth cell:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; or,
and under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell.
Wherein, under the condition that both the packet domain and the circuit domain of the dual-mode terminal reside in the cell of the second network system, the processor is further configured to:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
Wherein, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the communication method of the dual-mode terminal as described above.
The technical scheme of the invention at least has the following beneficial effects:
in the communication method and the device of the dual-mode terminal and the dual-mode terminal in the embodiment of the invention, the interoperation method and the network selection method of two networks are provided for the dual-mode terminal supporting the narrowband Internet of things system and other cellular mobile communication systems, so that the dual-mode terminal can efficiently coordinate the interoperation of the two networks, the smooth operation of services is ensured, and the dual-mode terminal can provide better support for various services on the narrowband Internet of things system.
Drawings
Fig. 1 is a flowchart illustrating steps of a communication method of a dual mode terminal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication apparatus of a dual-mode terminal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a dual-mode terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The communication method of the dual-mode terminal provided by the embodiment of the invention at least comprises the following steps: a room selection method of a dual-mode terminal and an interoperation method of the dual-mode terminal.
As shown in fig. 1, an embodiment of the present invention provides a communication method for a dual-mode terminal, where the dual-mode terminal supports a first network system and a second network system, and the method includes:
step 11, searching a cell of a first network system;
step 12, when the searched signal threshold value of the first cell of the first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system. That is, the first network system is an NB-IoT system, and the second network system is a GSM system, a WCDMA system, etc., which are not enumerated herein.
In the embodiment of the present invention, the priority of the first network system is higher than that of the second network system, the dual-mode terminal preferentially searches for a cell of the first network system during network selection, the dual-mode terminal searches for a first cell (may be referred to as an NB-IoT cell) of the first network system, and a current signal threshold of the first cell is greater than a first preset value (the first preset value may be CE0 or CE1, where CE refers to a baseband resource of a base station), a packet domain (i.e., a PS domain) of the dual-mode terminal resides in the first network system in an attached manner, or the packet domain of the dual-mode terminal resides in the first cell.
It should be noted that, in the foregoing embodiment of the present invention, the dual-mode terminal specifically includes: a dual-mode single-card single-standby terminal and a dual-mode single-card dual-standby single-pass terminal. It should be further noted that the dual-mode terminal may further include a dual-mode single-card dual-standby dual-pass terminal, and in the embodiment of the present invention, the communication modes of the dual-mode single-card single-standby terminal and the dual-mode single-card dual-standby dual-pass terminal are mainly described, and the communication mode of the dual-mode single-card dual-standby dual-pass terminal is not described in detail herein.
The dual-mode single-card single-standby terminal specifically refers to: one SIM (Subscriber Identity Module) card of the terminal supports both the first network system and the second network system, but the SIM card only selects one of the network systems to access.
The dual-mode single-card dual-standby single-pass terminal specifically includes: a Subscriber Identity Module (SIM) card of the terminal supports both the first network system and the second network system, and the SIM card has access to both the first network system and the second network system, but can only communicate with one network system at the same time.
Preferably, in the above-mentioned embodiment of the present invention,
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain resident in a first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
Further, in the foregoing embodiment of the present invention, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is searched to be larger than a sixth preset value, a circuit domain (namely, CS domain) and a packet domain (namely, PS domain) of the dual-mode terminal reside in the fifth cell.
The first network system is set to be forbidden for the target time period, which may also be referred to as setting the first network to be in a forbidden access state, and setting the duration of the forbidden access state to be a specific threshold (i.e., the target time period).
In short, after the packet domain of the dual-mode terminal resides in the first cell, the dual-mode terminal initiates random access to the first network system, if the number of times or time of random access failure of the dual-mode terminal in the first network system is greater than the fourth preset value, the dual-mode terminal starts frequency band search of other cellular mobile communication systems (i.e. searches for a cell of the second network system), and if the fifth cell is searched and the signal threshold of the fifth cell is greater than the sixth preset value, the dual-mode terminal performs circuit domain and packet domain combined registration in the second network system in an attachment manner, which may also be referred to as that both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
Further, in the foregoing embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card single-standby terminal, if the dual-mode terminal successfully resides in the packet domain in the first cell according to steps 11 and 12, the network selection of the dual-mode terminal is completed (the dual-mode terminal selects the first network system); if the dual-mode terminal cannot search the first cell, the method further comprises:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the second cell of the second network system is larger than a third preset value, the circuit domain and the packet domain of the dual-mode terminal both reside in the second cell, and at the moment, the dual-mode terminal is also in a network selection completion state (the dual-mode terminal selects the second network system).
In short, if the signal threshold of the NB-IoT cell searched by the dual-mode terminal is smaller than the second preset value (the second preset value may be CE2), the terminal starts frequency band search of other cellular mobile communication systems (i.e. searches for a cell of the second network system), and if the second cell is searched and the signal threshold of the second cell is greater than the third preset value, the dual-mode terminal performs circuit domain and packet domain joint registration in other cellular mobile communication systems in an attached manner, which may also be referred to as that the circuit domain and the packet domain of the dual-mode terminal both reside in the second cell. In this case, the circuit domain of the dual-mode terminal supports the short message service.
Further, in the foregoing embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, if the dual-mode terminal cannot search the first cell, the method further includes:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the third cell of the second network system is larger than a fourth preset value, the packet domain of the dual-mode terminal resides in the third cell.
In short, if the NB-IoT cell signal thresholds searched by the dual-mode terminal are both smaller than the second preset value and the signal thresholds of the third cells of the other cellular mobile communication systems are larger than the fourth preset value, the packet domain of the dual-mode terminal resides in the other cellular mobile communication systems in an attachment manner, that is, the packet domain of the dual-mode terminal resides in the third cell of the second network system.
Further, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides (including that the packet domain of the dual-mode terminal resides in the first cell of the first network system, or that the packet domain of the dual-mode terminal resides in the third cell of the second network system), the method further includes:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
In short, after the packet domain of the dual-mode terminal resides, the frequency band search of the other cellular mobile communication system is started (i.e. the cell of the second network system is searched), and if an available cell (for example, a fourth cell is searched, and the signal threshold of the fourth cell is greater than a fifth preset value), the circuit domain of the dual-mode terminal resides in the other cellular mobile communication system in an attached manner, that is, the circuit domain of the dual-mode terminal resides in the fourth cell of the second network system.
In summary, the above embodiments of the present invention provide a network selection method for a dual-mode terminal, and for a dual-mode single-card single-standby terminal, a network selection result includes any one of the following:
1. the packet domain of the dual-mode terminal resides in a first network system;
2. the packet domain and the circuit domain of the dual-mode terminal reside in a second network system;
for the dual-mode single-card dual-standby single-pass terminal, the network selection result comprises any one of the following types:
3. the packet domain of the dual-mode terminal resides in a first network system, and the circuit domain of the dual-mode terminal resides in a second network system;
4. the packet domain of the dual-mode terminal resides in the second network system, and the circuit domain of the dual-mode terminal resides in the second network system.
Bearing in the above example, in order to clearly describe the interoperation method between two networks of a dual-mode terminal, the following description is respectively made for the interoperation method of a dual-mode single-card single-standby terminal and the interoperation method of a dual-mode single-card dual-standby single-pass terminal.
The interoperation method of two networks in the idle-state dual-mode single-card single-standby terminal comprises the following steps: in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
In short, when the dual-mode single-card single-standby terminal detects that the signal threshold of the current first cell is smaller than the second preset value and does not satisfy the cell reselection condition (the cell reselection condition is the same as the cell reselection condition in the prior art, and is not described here), the terminal starts frequency band search of other cellular mobile communication systems (i.e., searches for a cell of the second network system), for example, an available cell (e.g., a sixth cell) is searched, and the signal threshold of the sixth cell is larger than a seventh preset value, the circuit domain and the packet domain of the dual-mode terminal reside in the second network system in an attached manner, that is, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell of the second network system.
The interoperation method of two networks in the idle-state dual-mode single-card single-standby terminal further comprises the following steps: after the circuit domain and the packet domain of the dual-mode terminal both reside in the fifth cell of the second network system, the method further includes:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
In short, the dual-mode terminal resides in a cell of the second network system, that is, the circuit domain and the packet domain of the dual-mode terminal both reside in the second network system (the circuit domain supports short message service), the dual-mode terminal should start NB-IoT frequency band search (i.e., search a cell of the first network system), if an available NB-IoT cell (e.g., a seventh cell) is searched and a current signal threshold is greater than a first preset value, the packet domain of the dual-mode terminal resides in the first network system in an attachment manner, that is, the packet domain of the dual-mode terminal resides in the seventh cell of the first network system; in this case, the packet domain of the dual-mode terminal residing in the seventh cell supports the short message service.
The interoperation method of two networks in the connected dual-mode single-card single-standby terminal comprises the following steps: in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
In short, in the cell of the first network system where the dual-mode terminal resides, the dual-mode terminal performs a trawling re-search in the cell of the first network system, and if an available NB-IoT cell is not searched, the terminal starts a frequency band search of another cellular mobile communication system (i.e., searches for a cell of the second network system); if an available cell (for example, an eighth cell) of the second network system is searched and the signal threshold is greater than an eighth preset value, the circuit domain and the packet domain of the dual-mode terminal reside in the second network system in an attachment manner, that is, the circuit domain and the packet domain of the dual-mode terminal both reside in the eighth cell of the second network system; if the dual-mode terminal does not search the cell of the second network system, or the signal threshold value of the cell of the second network system searched by the dual-mode terminal is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period, and the dual-mode terminal preferentially resides in the cell searched fastest.
Preferably, the preset period is determined by the terminal or configured by the network side device, and is not limited in detail herein.
The interoperation method of two networks in the connected dual-mode single-card single-standby terminal further comprises the following steps: in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
In short, when the dual-mode terminal is in a connected state in an NB-IoT cell (i.e., a first cell) and the current signal threshold is smaller than a second preset value, the terminal starts NB-IoT frequency band search (i.e., searches for a cell of the first network system), and if an available NB-IoT cell (e.g., a ninth cell) is searched and the current signal threshold is greater than the first preset value, the terminal accesses the ninth cell and initiates a service. If the terminal searches for an available NB-IoT cell and the current signal threshold is smaller than the second preset value or the terminal does not search for the available NB-IoT cell, the terminal starts other cellular mobile communication system frequency band search (i.e. searches for a cell of a second network system), if the terminal searches for an available cell (such as a tenth cell) and the signal threshold is larger than the ninth preset value, the dual-mode terminal performs circuit domain and packet domain combined registration in other cellular mobile communication systems in an attachment mode, and the circuit domain supports short message service, namely, the circuit domain and the packet domain of the dual-mode terminal both reside in the tenth cell of the second network system. And the terminal initiates the service after accessing the second network system.
The interoperation method of two networks in the idle-state dual-mode single-card dual-standby single-pass terminal comprises the following steps: the method further includes, when the packet domain of the dual mode terminal resides in a first cell of a first network system and the circuit domain of the dual mode terminal resides in a fourth cell of a second network system:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; that is, when the signal threshold of the first cell in which the terminal is currently located is smaller than the second preset value and does not satisfy the cell reselection condition, and the signal threshold of the fourth cell of the second network system is greater than the tenth preset value, the packet domain of the terminal resides in the fourth cell of the second network system.
Or,
under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell, namely the number of times or time of random access failure initiated by the terminal on the first network system is greater than the eleventh preset value, and if the signal threshold of the fourth cell of the second network system where the current circuit domain of the terminal is located is greater than the twelfth preset value, the packet domain of the terminal resides in the fourth cell; the first network system is also set to a forbidden access state, where the forbidden access duration is a certain threshold.
The interoperation method of two networks in the idle-state dual-mode single-card dual-standby single-pass terminal comprises the following steps: under the condition that the packet domain and the circuit domain of the dual-mode terminal both reside in the cell of the second network system, the method further comprises the following steps:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
In short, the dual-mode terminal resides in a cell of the second network system, that is, both a circuit domain and a packet domain of the dual-mode terminal reside in the second network system (the circuit domain supports short message service), the dual-mode terminal should start NB-IoT frequency band search (i.e., search a cell of the first network system), if an available NB-IoT cell (e.g., a thirteenth cell) is searched and a current signal threshold is greater than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the first network system in an attachment manner, that is, the packet domain of the dual-mode terminal resides in the thirteenth cell of the first network system; in this case, the packet domain of the dual-mode terminal residing in the thirteenth cell supports the short message service.
The interoperation method of two networks in the connected dual-mode single-card dual-standby single-pass terminal comprises the following steps: in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
In short, the terminal performs offline re-search in an NB-IoT cell (i.e., a first cell), and if the terminal circuit domain already resides in a cell of a second network system under the condition that an available NB-IoT cell is not searched, the packet domain of the terminal resides in the current cell of the second network system in an attachment manner; and if the current circuit domain of the terminal does not reside in the second network system, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period, and preferentially resides in the cell searched fastest.
Preferably, the preset period is determined by the terminal or configured by the network side device, and is not limited in detail herein.
The interoperation method of two networks in the connected dual-mode single-card dual-standby single-pass terminal comprises the following steps: in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the method further includes:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
In short, when the terminal is in a connected state in the NB-IoT cell (i.e., the first cell) and the current signal threshold is at CE2, the terminal starts NB-IoT frequency point search (i.e., searches for a cell of the first network system), and if an available NB-IoT cell (e.g., the fourteenth cell) is searched and the current signal threshold is greater than the first preset value, the terminal accesses the fourteenth cell and initiates a service. If the terminal searches for an available NB-IoT cell and the current signal threshold is smaller than a second preset value or the terminal does not search for the available NB-IoT cell, if the terminal circuit domain is resident in the second network system and the signal threshold of the resident cell of the second network system is larger than a preset value, the dual-mode terminal performs packet domain registration in the second network system in an attachment mode, namely the packet domain of the dual-mode terminal is resident in the resident cell of the second network system of the circuit domain.
In summary, the embodiments of the present invention provide an efficient network selection method for a dual-mode terminal and an interoperation method for a dual-mode terminal oriented to service optimization, so that the interoperation method of the terminal for two networks, NB-IoT and other cellular mobile communication systems, can be efficiently coordinated, smooth operation of services is ensured, and better support is provided for various services on the NB-IoT network.
As shown in fig. 2, an embodiment of the present invention further provides a communication apparatus for a dual-mode terminal, where the dual-mode terminal supports a first network system and a second network system, and the apparatus includes:
a first searching module 21, configured to search for a cell of a first network system;
a first residence module 22, configured to, when a signal threshold of a first cell of a first network system is greater than a first preset value, residence a packet domain of the dual-mode terminal in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system.
Preferably, in the above-mentioned embodiment of the present invention,
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain resident in a first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the apparatus further includes:
the second searching module is used for searching the cell of the second network system under the condition that the signal threshold values of the searched cells of the first network system are all smaller than a second preset value;
and the second residence module is used for residing the circuit domain and the packet domain of the dual-mode terminal in the second cell when the signal threshold of the second cell of the second network system is searched to be larger than a third preset value.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the apparatus further includes:
the third searching module is used for searching the cell of the second network system under the condition that the signal threshold values of the searched cells of the first network system are all smaller than a second preset value;
and the third residence module is used for residing the packet domain of the dual-mode terminal in a third cell of the second network system under the condition that the signal threshold value of the third cell is greater than a fourth preset value.
Preferably, in the above embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the apparatus further includes:
a fourth searching module, configured to search a cell of a second network system after the packet domain of the dual-mode terminal resides;
and the fourth residing module is used for residing the circuit domain of the dual-mode terminal in the fourth cell when the signal threshold value of the fourth cell of the second network system is searched to be larger than a fifth preset value.
Preferably, in the above embodiment of the present invention, the apparatus further includes:
a fifth searching module, configured to, after a packet domain of the dual-mode terminal resides in the first cell, initiate random access to the first network system by the dual-mode terminal, and search a cell of a second network system when a number of times or time of random access failure is greater than a fourth preset value;
and the fifth residing module is used for residing in the fifth cell in the circuit domain and the packet domain of the dual-mode terminal under the condition that the signal threshold value of the fifth cell of the second network system is searched to be larger than a sixth preset value.
Preferably, in the above embodiment of the present invention, the apparatus further includes:
and the setting module is used for setting the first network system as a forbidden access in a target time period.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the apparatus further includes:
a sixth searching module, configured to search a cell of a second network system after the packet domain of the dual-mode terminal resides in the first cell and when a current signal threshold of the first cell is smaller than a second preset value and does not satisfy a cell reselection condition;
and the sixth residence module is configured to, when the signal threshold of the sixth cell of the second network system is greater than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
Preferably, in the above embodiment of the present invention, the apparatus further includes:
a seventh searching module, configured to search a cell of the first network system after both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell;
a seventh residing module, configured to, when a signal threshold of a seventh cell of the first network system is greater than a first preset value, reside a packet domain of the dual-mode terminal in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the apparatus further includes:
a first access module, configured to, after a packet domain of the dual-mode terminal resides in the first cell, initiate random access to the first network system and access the first cell by the dual-mode terminal;
an eighth searching module, configured to search a cell of the second network system when the dual-mode terminal performs offline re-search on the first cell and does not search for a cell of the first network system;
an eighth residing module, configured to, when a signal threshold of an eighth cell of the second network system is greater than an eighth preset value, both a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and the ninth searching module is used for sequentially searching the cell of the first network system and the cell of the second network system according to a preset period by the dual-mode terminal under the condition that the cell of the second network system is not searched or the signal threshold of the searched cell of the second network system is smaller than an eighth preset value.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the apparatus further includes:
a second access module, configured to, after a packet domain of the dual-mode terminal resides in the first cell, initiate random access to the first network system and access the first cell by the dual-mode terminal;
the tenth searching module is used for searching the cell of the first network system under the condition that the current signal threshold value of the first cell is smaller than a second preset value;
a third access module, configured to, when a signal threshold of a ninth cell of the first network system is greater than a first preset value, initiate, by the dual-mode terminal, a random access to the ninth cell;
the eleventh searching module is used for searching the cell of the second network system under the condition that the signal threshold of the cell of the first network system is smaller than the second preset value or the cell of the first network system is not searched;
and the fourth access module is configured to, when the signal threshold of the tenth cell of the second network system is greater than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
Preferably, in the foregoing embodiment of the present invention, when the packet domain of the dual-mode terminal resides in the first cell and the circuit domain of the dual-mode terminal resides in the fourth cell, the apparatus further includes:
a ninth residing module, configured to, when the current signal threshold of the first cell is smaller than the second preset value, and does not satisfy the cell reselection condition, and a signal threshold of a fourth cell of the second network system is greater than a tenth preset value, reside a packet domain of the dual-mode terminal in the fourth cell; or,
and the tenth residence module is used for the residence of the packet domain of the dual-mode terminal in the fourth cell under the condition that the number of times or time of the random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of the fourth cell of the second network system is greater than a twelfth preset value.
Preferably, in the above embodiment of the present invention, when both the packet domain and the circuit domain of the dual-mode terminal are camped in the cell of the second network system, the apparatus further includes:
a twelfth searching module, configured to search for a cell of the first network system;
an eleventh residing module, configured to, when a signal threshold of a thirteenth cell of the first network system is greater than a thirteenth preset value, reside in the thirteenth cell in a packet domain of the dual-mode terminal, and the packet domain residing in the thirteenth cell does not support a short message service.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the apparatus further includes:
a fifth access module, configured to, after a packet domain of the dual-mode terminal resides in the first cell, initiate random access to the first network system and access the first cell by the dual-mode terminal;
a thirteenth searching module, configured to, when the dual-mode terminal performs offline re-search in the first cell and does not search for a cell of the first network system, if a circuit domain of the dual-mode terminal resides in a cell of a second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the method further includes:
a sixth access module, configured to, after a packet domain of the dual-mode terminal resides in the first cell, initiate random access to the first network system and access the first cell by the dual-mode terminal;
a fourteenth searching module, configured to search a cell of the first network system when the current signal threshold of the first cell is smaller than a second preset value;
a seventh access module, configured to, when a signal threshold of a fourteenth cell of the first network system is greater than a first preset value, initiate, by the dual-mode terminal, a random access to the fourteenth cell;
and a twelfth residence module, configured to, when the signal threshold of the cell of the first network system is smaller than the second preset value or the cell of the first network system is not searched, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides.
In summary, the embodiments of the present invention provide an efficient network selection method for a dual-mode terminal and an interoperation method for a dual-mode terminal oriented to service optimization, so that the interoperation method of the terminal for two networks, NB-IoT and other cellular mobile communication systems, can be efficiently coordinated, smooth operation of services is ensured, and better support is provided for various services on the NB-IoT network.
It should be noted that the communication apparatus of the dual-mode terminal provided in the embodiment of the present invention is an apparatus capable of executing the communication method of the dual-mode terminal, and all embodiments of the communication method of the dual-mode terminal are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 3, an embodiment of the present invention further provides a dual-mode terminal, where the dual-mode terminal supports a first network system and a second network system, the dual-mode terminal includes a processor 300 and a transceiver 310, and the transceiver 310 is configured to perform the following processes:
searching a cell of a first network system;
the processor 300 is configured to perform the following processes:
under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system.
Preferably, in the above-mentioned embodiment of the present invention,
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain resident in a first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the processor 300 is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the second cell of the second network system is larger than a third preset value, the circuit domain and the packet domain of the dual-mode terminal reside in the second cell.
Preferably, in the above embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the processor 300 is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the third cell of the second network system is larger than a fourth preset value, the packet domain of the dual-mode terminal resides in the third cell.
Preferably, in the above embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides, the processor 300 is further configured to:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
Preferably, in the above embodiments of the present invention, the processor 300 is further configured to:
after the packet domain of the dual-mode terminal resides in the first cell, the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is larger than a sixth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
Preferably, in the above embodiments of the present invention, the processor 300 is further configured to:
and setting the first network system as forbidden access in a target time period.
Preferably, in the foregoing embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card single-standby terminal, and after the packet domain of the dual-mode terminal resides in the first cell, the processor 300 is further configured to:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
Preferably, in the foregoing embodiment of the present invention, after the circuit domain and the packet domain of the dual-mode terminal both reside in the fifth cell, the processor 300 is further configured to:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
Preferably, in the foregoing embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card single-standby terminal, and after the packet domain of the dual-mode terminal resides in the first cell, the processor 300 is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
Preferably, in the foregoing embodiment of the present invention, when the dual-mode terminal is a dual-mode single-card single-standby terminal, and after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
Preferably, in the foregoing embodiment of the present invention, when the packet domain of the dual-mode terminal resides in the first cell and the circuit domain of the dual-mode terminal resides in the fourth cell, the processor 300 is further configured to:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; or,
and under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell.
Preferably, in the foregoing embodiment of the present invention, when both the packet domain and the circuit domain of the dual-mode terminal are camped in the cell of the second network system, the processor 300 is further configured to:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
Preferably, in the foregoing embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor 300 is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
Preferably, in the foregoing embodiment of the present invention, in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor 300 is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
In summary, the embodiments of the present invention provide an efficient network selection method for a dual-mode terminal and an interoperation method for a dual-mode terminal oriented to service optimization, so that the interoperation method of the terminal for two networks, NB-IoT and other cellular mobile communication systems, can be efficiently coordinated, smooth operation of services is ensured, and better support is provided for various services on the NB-IoT network.
It should be noted that the dual-mode terminal provided in the embodiment of the present invention is a dual-mode terminal capable of executing the communication method of the dual-mode terminal, and all embodiments of the communication method of the dual-mode terminal are applicable to the dual-mode terminal, and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the communication method embodiment of the dual-mode terminal, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (28)

1. A communication method of a dual mode terminal, wherein the dual mode terminal supports a first network system and a second network system, the method comprising:
searching a cell of a first network system;
under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system;
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, the method further comprises the following steps:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
under the condition that a signal threshold value of a second cell of a second network system is larger than a third preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the second cell;
or, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the method further includes:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the third cell of the second network system is larger than a fourth preset value, the packet domain of the dual-mode terminal resides in the third cell.
2. The method of claim 1,
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain resident in a first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
3. The method according to claim 1, wherein when the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides, the method further comprises:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
4. The method of claim 1, wherein the packet domain of the dual-mode terminal resides in the first cell, and wherein the method further comprises:
the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is larger than a sixth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
5. The method of claim 4, further comprising:
and setting the first network system as forbidden access in a target time period.
6. The method according to claim 1, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain of the dual-mode terminal resides in the first cell, the method further comprising:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
7. The method of claim 4, wherein the circuit domain and the packet domain of the dual mode terminal are both after the fifth cell camping, the method further comprising:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
8. The method according to claim 1, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain of the dual-mode terminal resides in the first cell, the method further comprising:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
9. The method according to claim 1, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain of the dual-mode terminal resides in the first cell, the method further comprising:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
10. The method of claim 3, wherein if the packet domain of the dual-mode terminal resides in a first cell and the circuit domain of the dual-mode terminal resides in a fourth cell, the method further comprises:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; or,
and under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell.
11. The method according to claim 3, wherein in case that both the packet domain and the circuit domain of the dual mode terminal are camped on a cell of a second network system, the method further comprises:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
12. The method according to claim 1, wherein in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain of the dual-mode terminal resides in the first cell, the method further comprising:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
13. The method according to claim 1, wherein in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain of the dual-mode terminal resides in the first cell, the method further comprising:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
14. A communication apparatus of a dual mode terminal, wherein the dual mode terminal supports a first network system and a second network system, the apparatus comprising:
the first searching module is used for searching a cell of a first network system;
the first resident module is used for residing in a packet domain of the dual-mode terminal in a first cell of a first network system under the condition that a searched signal threshold value of the first cell is greater than a first preset value;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system;
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, the device further comprises:
the second searching module is used for searching the cell of the second network system under the condition that the signal threshold values of the searched cells of the first network system are all smaller than a second preset value;
the second resident module is used for searching that a signal threshold value of a second cell of a second network system is larger than a third preset value, and a circuit domain and a packet domain of the dual-mode terminal are resident in the second cell;
or, in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the apparatus further includes:
the third searching module is used for searching the cell of the second network system under the condition that the signal threshold values of the searched cells of the first network system are all smaller than a second preset value;
and the third residence module is used for residing the packet domain of the dual-mode terminal in a third cell of the second network system under the condition that the signal threshold value of the third cell is greater than a fourth preset value.
15. A dual mode terminal supporting a first network system and a second network system, the dual mode terminal comprising a processor and a transceiver, wherein the transceiver is configured to perform the following process:
searching a cell of a first network system;
the processor is used for executing the following processes:
under the condition that the searched signal threshold value of a first cell of a first network system is larger than a first preset value, the packet domain of the dual-mode terminal resides in the first cell;
the first network system is a narrowband Internet of things system, and the second network system is a cellular mobile communication system except the narrowband Internet of things system;
in a case that the dual-mode terminal is a dual-mode single-card single-standby terminal, the processor is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
under the condition that a signal threshold value of a second cell of a second network system is larger than a third preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the second cell;
or,
in a case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the processor is further configured to:
searching a cell of a second network system under the condition that the searched signal threshold of the cell of the first network system is smaller than a second preset value;
and under the condition that the signal threshold value of the third cell of the second network system is larger than a fourth preset value, the packet domain of the dual-mode terminal resides in the third cell.
16. The dual mode terminal of claim 15,
under the condition that the dual-mode terminal is a dual-mode single-card single-standby terminal, a packet domain resident in a first cell supports short message service;
and under the condition that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, the packet domain resident in the first cell does not support the short message service.
17. The dual-mode terminal of claim 15, wherein when the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides, the processor is further configured to:
searching a cell of a second network system;
and under the condition that the signal threshold value of the fourth cell of the second network system is larger than a fifth preset value, the circuit domain of the dual-mode terminal resides in the fourth cell.
18. The dual mode terminal of claim 15, wherein the processor is further configured to:
after the packet domain of the dual-mode terminal resides in the first cell, the dual-mode terminal initiates random access to the first network system, and searches a cell of a second network system under the condition that the number of times or time of random access failure is greater than a fourth preset value;
and under the condition that the signal threshold value of a fifth cell of the second network system is larger than a sixth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the fifth cell.
19. The dual mode terminal of claim 18, wherein the processor is further configured to:
and setting the first network system as forbidden access in a target time period.
20. The dual-mode terminal of claim 15, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
searching a cell of a second network system under the condition that the current signal threshold of the first cell is smaller than a second preset value and does not meet a cell reselection condition;
and under the condition that the signal threshold value of the sixth cell of the second network system is larger than a seventh preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the sixth cell.
21. The dual mode terminal of claim 18, wherein the dual mode terminal's circuit domain and packet domain are both after camping on the fifth cell, and wherein the processor is further configured to:
searching a cell of a first network system;
under the condition that a signal threshold value of a seventh cell of a first network system is larger than a first preset value, a packet domain of the dual-mode terminal resides in the seventh cell; and the packet domain residing in the seventh cell supports short message service.
22. The dual-mode terminal of claim 15, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
the dual-mode terminal searches a cell of a second network system under the condition that the first cell is subjected to offline re-search and the cell of the first network system is not searched;
under the condition that a signal threshold value of an eighth cell of a second network system is larger than an eighth preset value, a circuit domain and a packet domain of the dual-mode terminal reside in the eighth cell;
and under the condition that the cell of the second network system is not searched or the signal threshold value of the searched cell of the second network system is smaller than the eighth preset value, the dual-mode terminal searches the cell of the first network system and the cell of the second network system in sequence according to a preset period.
23. The dual-mode terminal of claim 15, wherein in case that the dual-mode terminal is a dual-mode single-card single-standby terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
the dual-mode terminal initiates random access to a ninth cell when searching that a signal threshold of the ninth cell of the first network system is larger than a first preset value;
searching a cell of a second network system under the condition that the signal threshold of the searched cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched;
and under the condition that the signal threshold value of the tenth cell of the second network system is larger than a ninth preset value, both the circuit domain and the packet domain of the dual-mode terminal reside in the tenth cell and initiate random access to the second network system.
24. The dual-mode terminal of claim 17, wherein in case that the packet domain of the dual-mode terminal resides in a first cell and the circuit domain of the dual-mode terminal resides in a fourth cell, the processor is further configured to:
under the condition that the current signal threshold of the first cell is smaller than a second preset value, the cell reselection condition is not met, and the signal threshold of a fourth cell of the second network system is larger than a tenth preset value, the packet domain of the dual-mode terminal resides in the fourth cell; or,
and under the condition that the number of times or time of random access failure of the dual-mode terminal on the first network system is greater than an eleventh preset value and the signal threshold of a fourth cell of the second network system is greater than a twelfth preset value, the packet domain of the dual-mode terminal resides in the fourth cell.
25. The dual-mode terminal of claim 17, wherein in case that both the packet domain and the circuit domain of the dual-mode terminal reside in a cell of a second network system, the processor is further configured to:
searching a cell of a first network system;
and under the condition that the signal threshold value of a thirteenth cell of the first network system is larger than a thirteenth preset value, the packet domain of the dual-mode terminal resides in the thirteenth cell, and the packet domain residing in the thirteenth cell does not support the short message service.
26. The dual-mode terminal of claim 15, wherein in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
under the condition that the dual-mode terminal is in offline re-search in the first cell and does not search the cell of the first network system, if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides; and if the circuit domain of the dual-mode terminal does not reside in the cell of the second network system, the dual-mode terminal sequentially searches the cell of the first network system and the cell of the second network system according to a preset period.
27. The dual-mode terminal of claim 15, wherein in case that the dual-mode terminal is a dual-mode single-card dual-standby single-pass terminal, after the packet domain of the dual-mode terminal resides in the first cell, the processor is further configured to:
the dual-mode terminal initiates random access to the first network system and accesses the first cell;
searching a cell of a first network system under the condition that the current signal threshold of the first cell is smaller than a second preset value;
when a signal threshold value of a fourteenth cell of a first network system is larger than a first preset value, the dual-mode terminal initiates random access to the fourteenth cell;
and if the circuit domain of the dual-mode terminal resides in the cell of the second network system, the packet domain of the dual-mode terminal resides in the cell where the circuit domain resides under the condition that the signal threshold of the cell of the first network system is smaller than a second preset value or the cell of the first network system is not searched.
28. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the steps of the communication method of a dual mode terminal as claimed in any one of the claims 1 to 13.
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