CN114845352A

CN114845352A - Information processing method and device

Info

Publication number: CN114845352A
Application number: CN202110145637.XA
Authority: CN
Inventors: 侯云静; 艾明; 孙建成
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-08-02

Abstract

The application provides an information processing method and device, and solves the problem of how to select a relay of a mobile base station. The method of the present application comprises: an anchor Radio Access Network (RAN) node acquires first information, wherein the first information is used for indicating at least one of the following items: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station; and the anchor RAN node determines the target mobile base station relay according to the first information, so that the aim of selecting the mobile base station relay can be fulfilled.

Description

Information processing method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information processing method and apparatus.

Background

In the related art, an advanced deployment scenario includes that a base station relay is installed on a vehicle to provide signal coverage for User Equipment (UE) located in or near the vehicle, the base station relay is connected to a Network through a macro Access Network (RAN) node (anchor node), the relay in the scenario can also be a mobile base station relay, and there is no related scheme for how to select the mobile base station relay in the related art.

Disclosure of Invention

The invention aims to provide an information processing method and an information processing device, which are used for solving the problem of how to select a relay of a mobile base station.

In order to achieve the above object, an embodiment of the present invention provides an information processing method, including:

an anchor Radio Access Network (RAN) node acquires first information, wherein the first information is used for indicating at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

and the anchor RAN node determines the relay of the target mobile base station according to the first information.

Optionally, the first information is obtained from a terminal or the second mobile base station relay, and the first information includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

Optionally, in the information processing method of the present application, after determining that the target mobile base station is relayed, the method further includes:

sending second information to an access and mobility management function (AMF) node, wherein the second information comprises information related to the target mobile base station relay; and acquiring third information sent by the AMF, wherein the third information is used for indicating the AMF node to accept or reject the terminal to access the relay of the target mobile base station.

Optionally, the first information is obtained from an AMF node, and the first information is used to indicate an identifier of a first mobile base station relay selected by the terminal.

Optionally, the information processing method of the present application further includes:

and sending fourth information to the AMF, wherein the fourth information is used for indicating the anchor RAN to accept or reject the relay of the first mobile base station selected by the terminal.

the anchor RAN node acquires a selection strategy of a mobile base station relay sent by an access and mobility management function AMF node or a strategy control function PCF node, wherein the selection strategy of the mobile base station relay is determined according to at least one of subscription information of a terminal, the position of the terminal and information of the mobile base station relay.

Optionally, determining a target mobile base station relay according to the first information includes:

and determining the target mobile base station relay according to the first information and the selection strategy of the mobile base station relay.

An embodiment of the present application further provides an information processing method, including:

the terminal sends first information, wherein the first information is used for indicating at least one of the following items: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

the method comprises the steps that a terminal obtains a selection strategy of a mobile base station relay sent by an access and mobility management function AMF node or a strategy control function PCF node, wherein the selection strategy of the mobile base station relay is determined according to at least one of subscription information of the terminal, the position of the terminal and information relayed by the mobile base station.

Optionally, in a case that the first information is used to indicate information related to a first mobile base station relay selected by the terminal, before the sending the first information to the anchor RAN node, the method further includes:

and selecting the relay of the first mobile base station according to the selection strategy of the relay of the mobile base station and the received information of the relay of the second mobile base station.

Optionally, the terminal sends the first information, including:

and the terminal sends the first information to the anchor RAN node or the AMF node.

Optionally, the information relayed by the second mobile base station includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

The application also provides an information processing method, which comprises the following steps:

and the access and mobile management function AMF node sends first information to the anchor RAN node, wherein the first information is used for indicating information related to the relay of the first mobile base station selected by the terminal.

Optionally, the first information is used to indicate acceptance or rejection of the terminal to access the first mobile base station relay.

Optionally, before sending the first information, the method further includes:

the AMF node acquires an identifier of a first mobile base station relay sent by an anchor RAN node;

and determining to accept or reject the terminal to access the first mobile base station relay according to the selection strategy of the mobile base station relay.

Optionally, the first information is used to indicate an identifier of the first mobile base station relay selected by the terminal.

Optionally, before sending the first information, the method further includes:

acquiring a first non-access stratum (NAS) message sent by a terminal, wherein the first NAS message carries an identifier of a first mobile base station relay; and accepting or rejecting the terminal to access the first mobile base station relay according to the subscription information of the terminal or the selection strategy of the mobile base station relay.

Optionally, the sending the first information includes:

and sending the first information under the condition that the terminal is accessed to the first mobile base station relay.

Optionally, the method further comprises:

and under the condition that the terminal is refused to access the first mobile base station relay, sending a second NAS message to the terminal, wherein the second NAS message is used for indicating that the terminal is refused to access the first mobile base station relay.

The application also provides an information processing device, comprising a memory, a transceiver, a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

obtaining, by a transceiver, first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

and determining the relay of the target mobile base station according to the first information.

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

Optionally, the processor is further configured to:

sending second information to an access and mobility management function (AMF) node, wherein the second information comprises information related to a first mobile base station relay selected by a terminal; and acquiring third information sent by the AMF, wherein the third information is used for indicating the AMF node to accept or reject the terminal to access the first mobile base station relay.

Optionally, the processor is further configured to:

and acquiring a selection strategy of the mobile base station relay sent by an access and mobility management function AMF node or a strategy control function PCF node, wherein the selection strategy of the mobile base station relay is determined according to at least one of subscription information of a terminal, the position of the terminal and information relayed by the mobile base station.

The application also provides an information processing device, which comprises a memory, a transceiver and a processor:

transmitting, by a transceiver, first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

Optionally, the information processing apparatus further includes:

Optionally, in a case that the first information is used to indicate information related to a first mobile base station relay selected by the terminal, before the sending the first information to the anchor RAN node, the processor is further configured to:

Optionally, the processor is further configured to:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

and the access and mobile management function AMF node sends first information to the anchor RAN node through a transceiver, wherein the first information is used for indicating information related to the relay of the first mobile base station selected by the terminal.

Optionally, the processor is further configured to perform the following operations:

acquiring an identifier of a first mobile base station relay sent by an anchor RAN node;

Optionally, the processor is further configured to:

and sending the first information under the condition that the terminal is accepted to access the relay of the first mobile base station.

Optionally, the processor is further configured to:

The present application also provides an information processing apparatus including:

a first obtaining unit configured to obtain first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

and the first selection unit is used for selecting the relay of the mobile base station according to the first information.

a first sending unit, configured to send first information, where the first information is used to indicate at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

and a second sending unit, configured to send, to the anchor RAN node, first information, where the first information is used to indicate information related to a first mobile base station relay selected by the terminal.

An embodiment of the present application further provides a processor-readable storage medium, which stores program instructions for causing the processor to execute the steps of the information processing method described above.

The technical scheme of the invention at least has the following beneficial effects:

in the above technical solution of the embodiment of the present invention, an anchor radio access network RAN node acquires first information, where the first information is used to indicate at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station; and the anchor RAN node determines the target mobile base station relay according to the first information, so that the aim of selecting the mobile base station relay can be fulfilled.

Drawings

Fig. 1 is a block diagram showing a network system to which an embodiment of the present application is applicable;

FIG. 2 is a flow chart of an information processing method according to an embodiment of the present application;

FIG. 3 is a schematic interaction diagram illustrating an information processing method according to an embodiment of the present application;

FIG. 4 is a second schematic diagram illustrating an interaction of an information processing method according to an embodiment of the present application;

FIG. 5 is a third exemplary diagram illustrating an interaction of an information processing method according to an embodiment of the present application;

FIG. 6 is a fourth exemplary diagram illustrating an interaction of an information processing method according to an embodiment of the present application;

FIG. 7 is a second flowchart of an information processing method according to an embodiment of the present application;

FIG. 8 is a third flowchart of an information processing method according to an embodiment of the present application;

fig. 9 is a block diagram showing a configuration of an information processing apparatus according to an embodiment of the present application;

fig. 10 is a second block diagram showing the configuration of an information processing apparatus according to the embodiment of the present application;

FIG. 11 is a block diagram of an information processing apparatus according to an embodiment of the present application;

FIG. 12 is a second block diagram of an information processing apparatus according to an embodiment of the present disclosure;

fig. 13 is a third block diagram of an information processing apparatus according to an embodiment of the present application.

Detailed Description

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable System may be a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a Time Division Synchronous Code Division Multiple Access (Time Division Multiple Access) System, a General Packet Radio Service (GPRS) System, a Long Term Evolution (LTE) System (including TD-LTE and FDD LTE), a long term evolution (long term evolution) System (LTE-a) System, a universal Mobile telecommunications System (universal Mobile telecommunications System, UMTS), a worldwide interoperability for microwave Access (WiMAX-microwave Access, Radio network (New network) System, etc., a Radio Access (NR) System, a Radio Access (New network Access) System, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS/5GC), and the like.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that only the Base Station in the NR system is taken as an example in the present embodiment, but the specific type of the Base Station is not limited.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

As shown in fig. 2, an embodiment of the present application provides an information processing method, including:

step 201: an anchor Radio Access Network (RAN) node acquires first information, wherein the first information is used for indicating at least one of the following items: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

In this step, the anchor RAN node may obtain the first information from at least one of an Access and Mobility Management Function (AMF), the UE, and a relay of the second mobile base station. The first information may be used to indicate that the AMF receives or rejects the first mobile base station relay selected by the terminal when the first information is acquired from the AMF, indicate that the first mobile base station relay selected by the terminal or at least one second mobile base station relay when the first information is acquired from the UE, and indicate that the second mobile base station relay when the first information is acquired from the second mobile base station relay.

The information related to the first mobile base station relay selected by the terminal may include an identifier of the first mobile base station relay, an IP address of the first mobile base station relay, or identification information of a vehicle user corresponding to the first mobile base station relay, such as a mobile phone number of a vehicle-mounted user.

The information relayed by the second mobile base station includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

Step 202: and the anchor RAN node determines the relay of the target mobile base station according to the first information.

Here, the target mobile base station relay determined by the anchor RAN node may be one of the at least one second mobile base station relay or the first mobile base station relay.

After the anchor RAN node determines that the target mobile base station is relaying, a topology adaptation process may be triggered, which may include adding a mobile base station relay process, deleting a mobile base station relay process, or modifying a mobile base station relay process.

In addition, the target hnb relay determined by the anchor RAN node may be an hnb relay selected by the anchor RAN node according to the first information, or may be an hnb relay determined according to the first hnb relay selected by the UE. The target mobile base station relay may be a mobile base station relay other than the first mobile base station relay and the second mobile base station relay. The mobile base station relay in the embodiments of the present application may also be referred to as a mobile relay.

In the information processing method of the embodiment of the application, an anchor radio access network RAN node acquires first information, where the first information is used to indicate at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station; and the anchor RAN node determines the target mobile base station relay according to the first information, so that the aim of selecting the mobile base station relay can be fulfilled.

As a first optional implementation manner, the first information is obtained from a terminal or from the second mobile base station relay, and the first information includes at least one of the following:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

If the first measurement report does not include parameters such as load, speed, or moving direction of the relay of the second mobile base station, the anchor RAN node may send a first request message to the relay of the second mobile base station and acquire a first reply message that is sent by the relay of the second mobile base station according to the first request message, where the first reply message includes parameters such as load, speed, and moving direction.

Based on the measurement report, the first reply message and the selection strategy of the mobile base station relay, the anchor RAN node selects the target mobile base station relay.

The selection strategy of the mobile base station relay is determined according to at least one of subscription information of the terminal, the position of the terminal and information of the mobile base station relay.

In addition, when the first information is obtained from the relay of the second mobile base station, the anchor RAN may send a request to the relay of the second mobile base station to obtain the second information, or the relay of the second mobile base station may actively send the second information to the anchor RAN.

The anchor RAN may select the target mobile base station relay according to the second information and the selection policy of the mobile base station relay.

Further optionally, the first information is sent by the terminal, and the first information is used to indicate an identifier of the first mobile base station relay selected by the terminal, or the identifier of the first mobile base station relay selected by the terminal and information of at least one second mobile base station relay.

Here, the anchor RAN may determine the target mobile station relay according to the first mobile station relay selected by the terminal, and send the determined target mobile station relay to the AMF, where the AMF determines whether the target mobile station relay is available.

Optionally, after determining the target mobile base station relay, the method further includes:

sending second information to an access and mobility management function (AMF) node, wherein the second information comprises information related to a target mobile base station relay, such as an identifier of a first mobile base station relay selected by a terminal; and acquiring third information sent by the AMF, wherein the third information is used for indicating the AMF node to accept or reject the terminal to access the relay of the target mobile base station.

As a second optional implementation manner, the first information is obtained from an AMF node, and the first information is used to indicate an identifier of a first mobile base station relay selected by the terminal, for example, the first information may be carried by an N2 message.

Based on this, the method of the embodiment of the present application further includes:

and sending fourth information to the AMF, where the fourth information is used to instruct the anchor RAN to accept or reject the relay selected by the terminal by the first mobile base station, and for example, the fourth information may be carried by an N2 acknowledgement message.

In this implementation, the terminal may select the first mobile base station relay according to the information relayed by the second mobile base station, and send the identifier relayed by the first mobile base station to the AMF node, where the AMF node indicates, to the anchor RAN, the identifier relayed by the first mobile base station selected by the terminal through an N2 message.

The anchor RAN may determine the target mobile base station relay according to the N2 message, that is, determine the first mobile base station relay carried in the N2 message as the target mobile base station relay.

Optionally, the method in the embodiment of the present application further includes:

The determining a target mobile base station relay according to the first information includes:

In addition, the anchor RAN of the embodiments of the present application may also be referred to as a donor RAN.

In summary, in the information processing method according to the embodiment of the present application, the UE provides the network preference indication to the anchor RAN node through the measurement report or the dedicated RRC signaling, and the UE may include information such as an identifier of a desired base station relay or a mobile base station relay and a measurement result in a message. The anchor RAN node decides to accept or reject the UE's request and if so, adds/deletes the base station relay on the communication path. Specifically, the anchor RAN node may determine whether to accept the request of the UE according to a policy, a network deployment condition, load information, and the like; or (applicable to the scenario where the UE requests to use the base station relay), the anchor RAN node sends an N2 message to the AMF, where the message includes information of the base station relay requested to be used by the UE, such as an identifier, a load, and the like. The AMF determines whether to allow the UE to use the bs relay according to policy, UE subscription, information relayed by the bs (e.g. UE list allowed to access, load), and the like. And the AMF returns a confirmation message to the anchor RAN node, wherein the message carries an acceptance/rejection indication. If so, the anchor RAN node adds a mobile base station relay on the communication path.

The UE may also provide the AMF with a network preference indication via a NAS message, and the UE may include information in the message that it desires to use/not use the base station relay, the identity of the base station relay, and measurement results. The AMF determines whether to accept the request of the UE according to the strategy, UE subscription, the information relayed by the base station (such as a UE list allowed to access, load) and the like. If the request is accepted, the AMF requests the anchor RAN node to add/delete the base station relay, and the anchor RAN node receives/rejects the request of the AMF. The anchor RAN node may make decisions based on policies, network deployment conditions, load information, etc. The AMF returns a message to the UE, the message including an accept/reject indication.

The information processing method of the present application will be described below with reference to specific examples.

The first embodiment is as follows: the AMF/PCF decides a selection policy of the mobile base station relay and informs the UE or the anchor RAN node of the policy.

As shown in fig. 3, the method includes:

step 301 a: the PCF determines a selection strategy of the relay of the mobile base station and sends the selection strategy to the AMF.

The information that the PCF may refer to when determining the policy includes subscription information of the UE, location information of the UE, analysis data (such as location, movement trajectory, load, and the like) relayed by the mobile base station obtained from the network data analysis function, and the like.

Step 301 b: the AMF decides the selection strategy of the mobile base station relay.

The information that can be referred to by the AMF when determining the policy includes subscription information of the UE, location information of the UE, analysis data (such as location, movement trajectory, load, and the like) relayed by the mobile base station obtained from the network data analysis function, and the like.

In the embodiment of the present application, the selection policy of the mobile base station relay determined by the AMF or the PCF includes, but is not limited to, at least one of the following:

time;

a location;

a geographic area;

a preferred mobile base station relay list;

the moving speed of the relay.

Step 302 a: the AMF sends an N2 message to the anchor RAN node, the N2 message carrying the selection policy of the mobile base station relay.

Step 302 b: the AMF sends the selection strategy of the relay of the mobile base station to the UE.

The step 1a and the step 1b are parallel steps, and the step 2a and the step 2b are parallel steps.

Example two: and the anchor RAN node makes a topology adaptation decision according to information such as a selection strategy of the relay of the mobile base station.

As shown in fig. 4, includes:

step 401: the UE sends a measurement report to the anchor RAN.

The measurement report includes information relayed by the mobile base station, such as identification, signal strength, speed, moving direction, and the like.

Step 402: and the anchor RAN transmits a first request message to the mobile base station contained in the report in a relaying way according to the measurement report.

It should be noted that steps 402 and 403 are optional steps, and if the terminal does not provide information such as load, speed, moving direction, etc. in step 401, the anchor RAN may relay a request to the mobile base station for such information.

Step 403: the mobile base station relay sends a first reply message to the anchor RAN.

The first reply message includes information relayed by the mobile base station, such as load, speed, moving direction, etc.

Step 404: the anchor RAN makes a topology adaptation decision.

In this step, the information that the anchor RAN can refer to includes a measurement report, information of the mobile base station relay, and a selection policy of the mobile base station relay.

The anchor RAN triggered topology adaptation procedure may be any one of block (a), block (B) and block (C) in fig. 4. Different processes correspond to different scenarios, and topology adaptation processes in different blocks are described below.

Block (A): the UE is directly connected to the anchor RAN, which decides to add a mobile base station relay 1 between the UE and itself.

Step 405: the anchor RAN sends a UE context setup request to the mobile base station relay 1.

Step 406: mobile base station relay 1 sends a UE context setup reply to the anchor RAN.

Step 407: the anchor RAN sends an RRC reconfiguration to the UE.

Step 408: the UE accesses to the mobile base station relay 1 through a random access procedure.

Step 409: the UE sends RRC reconfiguration complete to the mobile base station relay 1.

Step 410: the mobile base station relay 1 sends an uplink RRC message transmission (RRC reconfiguration complete) to the anchor RAN.

After this step, the mobile base station relays 1 the data of the UE between the UE and the donor RAN.

Block (B): the mobile base station relay 1 relays UE data between the UE and the anchor RAN, which decides to delete the mobile base station relay 1.

Step 411: the anchor RAN sends an RRC reconfiguration to the UE.

Step 412: the UE accesses to the anchor RAN through a random access procedure.

Step 413: the UE sends RRC reconfiguration complete to the anchor RAN.

Step 414: the anchor RAN sends a UE context release command to the mobile base station relay 1.

Step 415: the mobile base station relay 1 returns UE context release completion to the anchor RAN.

After this step, UE data is transmitted directly between the UE and the donor RAN.

Block (C): mobile base station relay 2 at UE and step 406: inter-RAN relay data, step 406: the RAN decides to change the mobile base station relay from 2 to mobile base station relay 1.

Step 416: the anchor RAN sends a UE context setup request to the mobile base station relay 1.

Step 417: mobile base station relay 1 sends a UE context setup reply to the anchor RAN.

Step 418: the anchor RAN sends RRC reconfiguration to the UE through the mobile base station relay 2.

Step 419: the UE accesses to the mobile base station relay 1 through a random access procedure.

Step 420: the UE sends RRC reconfiguration complete to the mobile base station relay 1.

Step 421: the mobile base station relay 1 sends an uplink RRC message transmission (RRC reconfiguration complete) to the anchor RAN.

After this step, the mobile base station relay 1 is responsible for relaying UE data between the UE and the anchor RAN.

Example three: and the UE selects the relay of the mobile base station and informs the anchor RAN of the relay.

As shown in fig. 5, includes:

step 501: the UE selects a mobile base station relay.

The information that the UE can refer to includes a selection policy of the mobile base station relay, information of the received mobile base station relay broadcast, and the like. The information relayed and broadcast by the mobile base station can comprise the relay identifier, load, speed, moving direction and the like of the mobile base station.

Step 502: the UE sends a measurement report or RRC message to the anchor RAN.

The measurement report or RRC message carries a network preference indication, such as a preferred mobile station relay identity, no mobile station relay is used anymore, etc. The message may also carry the responsibility, speed, direction of movement, etc. of the mobile base station relay.

Step 503: (optional step) if the UE provides the preferred mobile base station relay identity, the anchor RAN may send an N2 message to the AMF.

The N2 message carries the relay identity of the mobile base station provided by the UE.

Step 504: (optional step) the AMF sends an N2 message acknowledgement to the anchor RAN.

And the AMF determines whether the UE can use the relay of the mobile base station according to the subscription of the UE, the selection strategy of the relay of the mobile base station and other information, and then sends N2 message confirmation to the anchor RAN, wherein the message carries acceptance or rejection.

Step 505: the anchor RAN makes a topology adaptation decision.

The information that can be referred to in the decision process includes information provided by the UE, information of the mobile relay (the anchor RAN may obtain information relayed by the mobile base station through step 402 and 403 in embodiment two or the information provided by the UE includes information of the mobile relay), information returned by the AMF, and the like.

Step 506: (optional step) the anchor RAN triggers the topology adaptation procedure.

If the anchor RAN decides to start the topology adaptation procedure, then any of the procedures in blocks (a), (B) or (C) in embodiment two are performed.

Example four: the UE selects a relay of the mobile base station and notifies the AMF.

As shown in fig. 6, includes:

step 601: the UE selects a mobile base station relay.

When the UE selects the information relayed by the mobile base station, the information that can be referred to includes a selection policy of the mobile base station relay, received information broadcasted by the mobile base station relay, and the like. The information relayed and broadcast by the mobile base station can comprise the relay identifier, load, speed, moving direction and the like of the mobile base station.

Step 602: the UE sends a NAS message to the AMF.

The NAS message carries the preferred relay identity. The AMF determines whether the UE request is acceptable according to the UE subscription, the selection policy of the mobile base station relay, the UE list allowed to be accessed by the preferred relay, and the like, and if so, performs step 603 and 606, and if not, skips step 603 and 606, and performs step 607.

Step 603: the AMF sends an N2 message to the anchor RAN.

The preferred relay identification is carried in the N2 message.

Step 604: the anchor RAN makes a topology adaptation decision.

When the anchor RAN makes a topology adaptation decision, the information that can be referred to includes information, policy, etc. of the preferred relay. The anchor RAN may relay request information such as load, speed, direction of movement, etc. to the mobile base station.

Step 605: the anchor RAN returns an N2 message acknowledgement to the AMF.

The N2 message acknowledgment carries an acceptance or rejection.

Step 606: if the anchor RAN accepts the request, a topology adaptation procedure is triggered.

Reference is made in detail to any one of the procedures in blocks (A), (B) or (C) of example II. Different scenarios perform the steps within different blocks.

Step 607: the AMF returns an NAS message to the UE.

The NAS message carries an acceptance or rejection.

In the information processing method of the embodiment of the application, an anchor radio access network RAN node acquires first information, where the first information is used to indicate at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station; and the anchor RAN node selects the relay of the mobile base station according to the first information, so that the aim of selecting the relay of the mobile base station is fulfilled.

As shown in fig. 7, an embodiment of the present application further provides an information processing method, including:

step 701: the terminal sends first information, wherein the first information is used for indicating at least one of the following items: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

The first information may be a measurement report or RRC signaling.

In the information processing method of the embodiment of the application, the first information used for indicating the information related to the relay of the first mobile base station selected by the terminal and/or the information of the relay of the at least one second mobile base station is sent to the anchor RAN or the AMF, so that the anchor RAN can select the corresponding relay of the mobile base station according to the first information, and the purpose of selecting the relay of the mobile base station is achieved.

Optionally, the information processing method according to the embodiment of the present application further includes:

Optionally, in the information processing method according to the embodiment of the present application, when the first information is used to indicate information related to a first mobile base station relay selected by a terminal, before the sending the first information to an anchor RAN node, the method further includes:

Optionally, the terminal sends the first information, including:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

It should be noted that the information processing method at the terminal side is a method corresponding to the information processing method at the anchor RAN side, and the interaction process between the terminal and the anchor RAN and the AMF is described in detail in the information processing method at the anchor RAN side, and is not described herein again.

As shown in fig. 8, an embodiment of the present application further provides an information processing method, including:

step 801: and the access and mobile management function AMF node sends first information to the anchor RAN node, wherein the first information is used for indicating information related to the relay of the first mobile base station selected by the terminal.

Optionally, the first information is used to indicate acceptance or rejection of the terminal to access the first mobile base station relay. Or, the first information is used for indicating the identifier of the first mobile base station relay selected by the terminal.

In the information processing method of the embodiment of the application, the AMF node sends first information to the anchor RAN node, and the first information is used for indicating information related to the relay of the first mobile base station selected by the terminal, so that the anchor RAN node selects the relay of the mobile base station according to the first information, and the purpose of selecting the relay of the mobile base station is achieved.

Optionally, before the sending the first information, when the first information is used to indicate acceptance or rejection of the terminal to access the first mobile base station relay, the method further includes:

Optionally, in a case that the first information is used to indicate an identifier of a first mobile base station relay selected by the terminal, before the sending the first information, the method further includes:

acquiring a first non-access stratum (NAS) message sent by a terminal, wherein the first NAS message carries an identifier of the relay of the first mobile base station; and accepting or rejecting the terminal to access the first mobile base station relay according to the subscription information of the terminal or the selection strategy of the mobile base station relay.

The sending the first information includes:

Further optionally, the method further comprises:

It should be noted that the information processing method of the AMF side is a method corresponding to the information processing method of the anchor RAN side, and the interaction process between the terminal and the anchor RAN and the AMF is described in detail in the information processing method of the anchor RAN side, and is not described herein again.

As shown in fig. 9, an embodiment of the present application further provides an information processing apparatus, which is applied to an anchor RAN node or an AMF node, and includes a memory 920, a transceiver 900, and a processor 910:

a memory 920 for storing a computer program; a transceiver 900 for transceiving data under the control of the processor 910;

when applied to an anchor RAN node, a processor 910 configured to read the computer program in the memory 920 and perform the following operations:

obtaining, by the transceiver 900, first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

Optionally, the processor 910 is further configured to:

Optionally, the processor 910 is further configured to perform the following operations:

Optionally, the processor 910 is further configured to:

and determining the target mobile base station relay according to the first information and the selection strategy of the mobile base station relay. When applied to the AMF node, the processor 910 is configured to read the computer program in the memory 920 and perform the following operations:

first information is sent to an anchor RAN node through a transceiver, and the first information is used for indicating information related to a first mobile base station relay selected by a terminal.

Optionally, the processor 910 is further configured to:

Wherein in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 910, and various circuits, represented by memory 920, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 900 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 in performing operations.

The processor 910 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the embodiment of the information processing method, and can achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the embodiment of the method are omitted here.

As shown in fig. 10, an embodiment of the present application further provides an information processing apparatus applied to a terminal, including a memory 1020, a transceiver 1000, a processor 1010:

a memory 1020 for storing a computer program; a transceiver 1000 for transceiving data under the control of the processor 1010; a processor 1010 for reading the computer program in the memory 1020 and performing the following operations:

Where in fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1010 and various circuits of memory represented by memory 1020 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1000 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, optical fiber cables, and the like. The user interface 1030 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 in performing operations.

Alternatively, the processor 1010 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

Optionally, the processor 1010 is further configured to:

transmitting, by a transceiver, the first information to an anchor RAN node or AMF node.

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

As shown in fig. 11, an embodiment of the present application further provides an information processing apparatus, applied to an anchor RAN node, including:

a first obtaining unit 1101 configured to obtain first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

a first determining unit 1102, configured to determine a target mobile base station relay according to the first information.

In the information processing apparatus according to the embodiment of the present application, the first information is obtained from a terminal or the second mobile base station relay, and the first information includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

The information processing apparatus according to the embodiment of the present application further includes:

a third sending unit, configured to send second information to an access and mobility management function (AMF) node after determining a target mobile base station relay, where the second information includes information related to the target mobile base station relay; and acquiring third information sent by the AMF, wherein the third information is used for indicating the AMF node to accept or reject the terminal to access the relay of the target mobile base station.

In the information processing apparatus according to the embodiment of the present application, the first information is acquired from an AMF node, and the first information is used to indicate an identifier of a first mobile base station relay selected by a terminal.

a fourth sending unit, configured to send fourth information to the AMF, where the fourth information is used to instruct the anchor RAN to accept or reject the first mobile base station relay selected by the terminal.

and a third obtaining unit, configured to obtain a selection policy of the mobile base station relay sent by an AMF node or a PCF node, where the selection policy of the mobile base station relay is determined according to at least one of subscription information of the terminal, a location of the terminal, and information of the mobile base station relay.

In the information processing apparatus according to the embodiment of the present application, the first determining unit is configured to determine the target mobile base station relay according to the first information and a selection policy of the mobile base station relay.

As shown in fig. 12, an embodiment of the present application further provides an information processing apparatus, including:

a first sending unit 1201, configured to send first information, where the first information indicates at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station.

a second determining unit configured to determine the first information.

and a fourth obtaining unit, configured to obtain a selection policy of the mobile base station relay sent by an AMF node or a PCF node, where the selection policy of the mobile base station relay is determined according to at least one of subscription information of the terminal, a location of the terminal, and information of the mobile base station relay.

and a first selection unit, configured to, in a case where the first information is used to indicate information related to a first mobile base station relay selected by the terminal, select the first mobile base station relay according to a selection policy of the mobile base station relay and the received information of the second mobile base station relay before sending the first information to the anchor RAN node.

In the information processing apparatus according to the embodiment of the present application, the first sending unit is configured to send the first information to an anchor RAN node or an AMF node.

In the information processing apparatus according to the embodiment of the present application, the information relayed by the second mobile base station includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

As shown in fig. 13, an embodiment of the present application further provides an information processing apparatus, including:

a second sending unit 1301, configured to send first information to the anchor RAN node, where the first information is used to indicate information related to a first mobile base station relay selected by the terminal.

Optionally, the information processing apparatus according to the embodiment of the present application further includes: a second determining unit configured to determine the first information.

In the information processing apparatus of the embodiment of the present application, the first information is used to indicate whether to accept or reject the terminal to access the relay of the first mobile base station.

a fifth obtaining unit, configured to obtain, before sending the first information, an identifier of the first mobile base station relay sent by the anchor RAN node;

and the third determining unit is used for determining to accept or reject the terminal to access the first mobile base station relay according to the selection strategy of the mobile base station relay.

In the information processing apparatus of the embodiment of the present application, the first information is used to indicate an identifier of a first mobile base station relay selected by a terminal.

a sixth obtaining unit, configured to obtain, before sending the first information, a first NAS message, which is sent by a terminal and carries an identifier of the first mobile base station relay, of the first NAS message; and accepting or refusing the terminal to access the first mobile base station relay according to the subscription information of the terminal or the selection strategy of the mobile base station relay.

In the information processing apparatus according to an embodiment of the present application, the second transmitting unit is configured to transmit the first information when receiving that the terminal accesses the relay of the first mobile base station.

The information processing apparatus of the embodiment of the present application further includes:

a fifth sending unit, configured to send a second NAS message to the terminal when the terminal is denied access to the first mobile base station relay, where the second NAS message is used to indicate denial of access to the first mobile base station relay.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

In some embodiments of the invention, there is also provided a processor-readable storage medium storing program instructions for causing a processor to perform steps of:

obtaining first information indicating at least one of: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station; selecting a mobile base station relay according to the first information;

or, sending first information, where the first information is used to indicate at least one of the following: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

or sending first information to the anchor RAN node, wherein the first information is used for indicating information related to the relay of the first mobile base station selected by the terminal.

When executed by a processor, the program instructions may implement all implementation manners in the above-described information processing method embodiment, or implement all implementation manners in the above-described information processing method embodiment, and are not described herein again to avoid repetition.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be referred to as a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be a evolved Node B (eNB or e-NodeB) in a Long Term Evolution (Long Term Evolution, LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next generation System), may be a Home evolved Node B (Home B, HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, and is not limited in the embodiments of the present application. In some network architectures, network devices may include Centralized Unit (CU) nodes and Distributed Unit (DU) nodes, which may also be geographically separated.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

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-usable 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable 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 diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory 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 processor-executable 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.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An information processing method characterized by comprising:

an anchor Radio Access Network (RAN) node acquires first information, wherein the first information is used for indicating at least one of the following items: information related to a first mobile base station relay selected by the terminal and information relayed by at least one second mobile base station;

2. The information processing method according to claim 1, wherein the first information is obtained from a terminal or the second mobile base station relay, and the first information includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

3. The information processing method according to claim 1 or 2, wherein after determining that the target mobile base station is relayed, the method further comprises:

4. The information processing method according to claim 1, wherein the first information is obtained from an AMF node, and the first information is used to indicate an identifier of the first mobile base station relay selected by the terminal.

5. The information processing method according to claim 4, further comprising:

6. The information processing method according to claim 1, further comprising:

7. The information processing method of claim 6, wherein determining a target mobile base station relay according to the first information comprises:

8. An information processing method characterized by comprising:

9. The information processing method according to claim 8, further comprising:

10. The information processing method according to claim 9, wherein in a case where the first information is used to indicate information related to a first mobile base station relay selected by a terminal, before the sending the first information to the anchor RAN node, further comprising:

11. The information processing method of claim 8, wherein the terminal sends the first information, comprising:

12. The information processing method according to claim 8, wherein the information relayed by the second mobile base station includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

13. An information processing method characterized by comprising:

14. The information processing method of claim 13, wherein the first information is used to indicate acceptance or rejection of the terminal to access the first mobile base station relay.

15. The information processing method of claim 14, wherein before transmitting the first information, further comprising:

16. The information processing method according to claim 13, wherein the first information is used to indicate an identifier of the first mobile base station relay selected by the terminal.

17. The information processing method of claim 16, wherein before transmitting the first information, further comprising:

18. The information processing method of claim 17, wherein the sending the first information comprises:

19. The information processing method according to claim 17, further comprising:

20. An information processing apparatus comprising a memory, a transceiver, a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following:

21. The apparatus according to claim 20, wherein the first information is obtained from a terminal or the second mobile base station relay, and the first information includes at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

22. An information processing apparatus comprising a memory, a transceiver, a processor:

23. The information processing apparatus according to claim 22, further comprising:

24. The information processing apparatus of claim 23, wherein in a case that the first information indicates information related to a first mobile base station relay selected by a terminal, the processor is further configured to, before sending the first information to the anchor RAN node:

25. The information processing apparatus of claim 22, wherein the processor is further configured to:

and the terminal sends the first information to an anchor RAN node or an AMF node.

26. The information processing apparatus of claim 22, wherein the information relayed by the second mobile base station comprises at least one of:

an identity of the second mobile base station relay;

signal strength relayed by the second mobile base station;

the load relayed by the second mobile base station;

the speed of the second mobile base station relay;

the second mobile base station relays the direction of movement.

27. An information processing apparatus comprising a memory, a transceiver, a processor:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

28. An information processing apparatus characterized by comprising:

and the first selection unit is used for determining the relay of the target mobile base station according to the first information.

29. An information processing apparatus characterized by comprising:

30. An information processing apparatus characterized by comprising:

31. A processor-readable storage medium, characterized in that the processor-readable storage medium stores program instructions for causing a processor to execute the steps of the information processing method according to any one of claims 1 to 7, or the steps of the information processing method according to any one of claims 8 to 12, or the steps of the information processing method according to any one of claims 13 to 19.