CN114698043B

CN114698043B - Communication processing method and device, communication equipment, chip and chip module

Info

Publication number: CN114698043B
Application number: CN202011643174.1A
Authority: CN
Inventors: 韩立锋
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-07-25
Anticipated expiration: 2040-12-30
Also published as: WO2022142832A1; CN114698043A

Abstract

The application discloses a communication processing method and device, and communication equipment, a chip and a chip module thereof. Wherein the method comprises the following steps: the first base station sends the switching list to the second base station; the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer. By sending the switching list to the second base station, the first base station can reduce the air interface flow of the second base station for configuring the switching for the target terminal, thereby being beneficial to saving the air interface signaling.

Description

Communication processing method and device, communication equipment, chip and chip module

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communication processing method and apparatus, and a communication device, a chip, and a chip module thereof.

Background

In the signal transmission process, in order to save signaling interaction, the base station configures information related to switching for the target terminal, such as information of a switched target cell, so that the target terminal can complete switching according to the information related to switching. In the whole switching process, related signaling interaction is involved, and how to avoid the waste of signaling becomes a research hot problem.

Disclosure of Invention

The application discloses a communication processing method and device, and communication equipment, a chip and a chip module thereof, which are beneficial to saving air interface signaling.

In a first aspect, the present application provides a communication processing method, including: the first base station sends the switching list to the second base station; wherein, the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In one embodiment, the second base station refers to a base station where the second cell indicated in the handover list is located.

In one embodiment, the method further comprises: the first base station informs the second base station to send the security parameters of the second base station to the base station where the next cell of the second cell included in the handover list is located.

In one embodiment, before the first base station sends the handoff list to the second base station, the method further includes: the first base station determines a handoff list.

In one embodiment, the first base station determines a handoff list, including: the first base station obtains a handoff list from the third base station.

In one embodiment, the first base station determines a handoff list, including: the first base station generates a handoff list.

In one embodiment, the first base station generates a handoff list comprising: the method comprises the steps that a first base station obtains switching information from each base station corresponding to M cells, wherein M is an integer greater than or equal to N; the first base station generates a switching list according to the acquired switching information, wherein the switching information comprises switching access parameters of a cell for transmitting the switching information.

In one embodiment, the method further comprises: the first base station sends the security parameters of the cell corresponding to the first base station to the second base station; the security information used when the second base station interacts data with the target terminal is generated according to the security parameters of the cell corresponding to the first base station.

In one embodiment, the first base station allows not to send the security parameters of the cell corresponding to the first base station to the base station where the next cell of the second cell is located.

In one embodiment, the types of the plurality of handover access parameters in the handover list are the same type, or the types of the plurality of handover access parameters in the handover list include at least two different types; the types of the switching access parameters include: angle type and time type.

In one embodiment, when the first base station sends the handover list to the second base station, the first base station sends a sub-list of the handover list to the second base station where the second cell in the handover list is located; wherein the sub-list comprises: and at least one of information of a cell after the second cell corresponding to the second base station and a handover access parameter corresponding to the cell after the second cell corresponding to the second base station in the handover list.

In a second aspect, the present application provides a communication processing method, including: the target terminal stores a switching list acquired from a base station side; the target terminal is switched to the base station where the next cell is located according to the indication of the switching list; the above-mentioned switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In one embodiment, the method further comprises: and deleting the table entry content corresponding to the next cell in the switching list by the target terminal.

In one embodiment, the deleting, by the target terminal, the entry content corresponding to the next cell in the handover list includes: receiving reconfiguration information sent by a base station side; and updating the switching list according to the reconfiguration message.

In a third aspect, the present application provides a communication processing method, applied to a second base station, including: the second base station receives a switching list notification message, wherein the switching list notification message comprises a switching list or a sub-list corresponding to the switching list; wherein, the switching list includes: and at least one of N cells accessed by the planned target terminal and switching access parameters corresponding to each cell.

In one embodiment, the method further comprises: the second base station determines the next switching cell from a switching list or a sub-list included in the switching list notification message; and the second base station sends a switching list notification message to the base station corresponding to the determined next switching cell.

In one embodiment, after determining the next handover cell from the handover list or the sub-list included in the handover list notification message, the second base station further includes: and the second base station sends the security parameters of the second base station to the base station corresponding to the next switching cell.

In a fourth aspect, the present application provides a communication processing apparatus for performing the unit of the above-mentioned communication processing method.

In a fifth aspect, the present application provides a communication device comprising a processor, a memory and a communication interface, the processor, the memory and the communication interface being interconnected, wherein the memory is adapted to store a computer program, the processor being configured to run the computer program for performing the above mentioned communication processing method.

In a sixth aspect, the present application provides a chip comprising a processor and a data interface, the processor reading instructions stored on a memory via the data interface to perform the communication processing method according to the first aspect, or to perform the communication processing method according to the second aspect, or to perform the communication processing method according to the third aspect.

In a seventh aspect, the present application provides a chip module, which includes the chip of the sixth aspect.

The base station of the embodiment of the invention can directly send the switching list comprising N cells accessed by the target terminal and at least one switching access parameter corresponding to each cell to the next base station, thereby facilitating the target terminal to complete the cell switching better and saving the air interface signaling to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1A is a handover flow diagram involved in NTN;

fig. 1B is a schematic diagram of signal strength distribution in each area of a common cell and an NTN cell;

FIG. 1C is a schematic diagram of an angle-based switch;

FIG. 1D is a schematic diagram of a time-based handoff;

FIG. 1E is a specific switching flowchart of a communication processing method;

fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application;

Fig. 3 is a flowchart of a communication processing method provided in an embodiment of the present application;

fig. 4 is a flowchart of another communication processing method provided in an embodiment of the present application;

fig. 5 is a flowchart of another communication processing method according to an embodiment of the present application;

fig. 6 is a specific flowchart of a communication processing method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a communication processing apparatus according to an embodiment of the present application;

fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic diagram of another communication device according to an embodiment of the present application.

Detailed Description

According to the method and the device for switching the target terminal, one or more cells which can be switched into by a certain target terminal and conditions required by the cells are defined through the mode of generating the switching list, and the related switching list is sent to the next base station, so that the target base station and the next base station can conveniently conduct subsequent switching processing on the target terminal. The present application can be applied to various communication systems, for example, non-terrestrial networks (non-terrestrial network, NTN), long term evolution (long term evolution, LTE) systems, fifth generation (5th generation,5G) mobile communication systems, and 5G New Radio (NR) systems. The method of the embodiment of the application is also applicable to various future communication systems, such as a 6G system, or other communication networks, etc.

Among them, for NTN, because the wireless cellular network cannot achieve seamless coverage of the wireless cellular network for a wide area of places such as the land, the ocean, or the like, continuous water areas, however, there is a sporadic communication demand in such areas. Thus, 3GPP introduced NTN.

The nature of NTN is to place a wireless transmitter on a satellite to cover a large area of the ground with wireless signals. The satellite can be subdivided into low-orbit satellite, medium-orbit satellite and high-orbit satellite according to the height of the satellite from the ground, and obviously, the higher the satellite orbit is, the larger the earth surface area can be covered, so the corresponding cell range is larger. Satellites travel around the earth at different orbital altitudes at different speeds.

The handover procedure involved in NTN is shown in fig. 1A, and typical handover procedure includes the steps of reporting measurement result, handover decision, handover request, handover response, handover command, and final connection establishment. Taking the triggering condition of the conditional switching as the signal strength as an example, in the transmission wireless cellular network, a target terminal connected with the base station continuously measures the wireless reference signal strength, and once the signal strength is found to be lower than the threshold value, the target terminal reports the base station. Then, the base station determines the target cell and issues a handover request to the target cell. After receiving the switching response sent by the target cell, the base station sends a switching command to the target terminal so as to enable the target terminal to be switched from the source base station to the target cell.

In some embodiments, the trigger conditions for conditional handover between NTN cells may include a variety of, for example, handover may be based on time as the trigger condition or handover may be based on the angle of the location of the target terminal as the trigger condition. The NTN cell is different from a general terrestrial cell in terms of signal strength distribution in various regions within the cell. As shown in fig. 1B, it can be seen that although the common land cell and the NTN cell are both cell center signals are strong and cell edge signals are weak. However, since the target terminal generally propagates non-line of sight from the normal cell, the signal undergoes reflection, scattering, etc., and the distance from the base station increases, so that the signal received by the target terminal at the edge of the normal cell is greatly attenuated compared with the signal received at the center of the normal cell. Whereas the target terminal and NTN cell are typically line-of-sight propagating, signal attenuation is mainly from transmission distance; however, considering the altitude of the satellite, the distance between the cell center and the cell edge is negligible, and thus, the signal received by the target terminal at the NTN cell edge is not much different from the signal received at the NTN cell center. Therefore, to some extent, NTN cells are not suitable to use the signal strength applicable to the normal cell as a trigger condition for conditional handover. Two trigger conditions suitable for the NTN cell to perform the conditional handover are as follows.

Triggering condition one: angle-based switching. As shown in fig. 1C, assuming that the angle of linear transmission between the target terminal and the satellite is α, the target terminal makes a handover decision by monitoring the change of the angle α. In one embodiment, taking the angle equal to α as an example, if the target terminal finds that the angle α is lower than a certain threshold value, the target terminal can switch from the source cell to the target cell.

And a triggering condition II: time-based switching. Since the moving speed of the satellite is far greater than that of the target terminal, the target terminal can be approximately regarded as stationary. In the case of cell radius determination, the length of time the target terminal stays in one NTN cell may be pre-calculated. Based on the calculation result, the source base station can determine the moment when the target terminal is switched to the target cell according to the moment when the target terminal enters the source cell. As shown in fig. 1D, assuming that the target terminal enters the source cell at time T1, it may be determined that the target terminal is handed over to the target cell at time T2.

In a specific handover process, since the motion trail of each satellite in NTN deployment is determined, that is, the source cell can know the motion trail of the next satellite covering the target terminal, and so on. Therefore, the source base station can configure a plurality of handovers at a time. The target terminal only needs to execute the switching action according to the switching list, and for the subsequent base stations, the switching list can be not configured for the target terminal. Therefore, the air interface flow of the base station for configuring and switching the target terminal can be reduced, and the air interface signaling is saved.

Fig. 1E is a specific handover flow of a communication processing method. Taking the above trigger condition two as an example in fig. 1E, two time-based handovers are configured for the target terminal. First, in S101, the target terminal performs data interaction with the source base station, for example: the target terminal reports the current position to the source base station; during the data interaction, in S102, the source base station makes a handover decision, for example: in the figure, the source base station determines two time-based handovers; after the source base station performs the handover decision, in S103, the source base station informs the target terminal to handover to another base station at the first moment and to handover to the next base station of the another base station at the second moment; after receiving the notification message of the source base station, in S104, the target terminal continues to use the source base station to perform downlink/uplink transmission; when the first moment is reached, in S105, the target terminal is handed over from the source base station to another base station; after the target terminal is handed over from the source base station to another base station, the target terminal performs downlink/uplink transmission using the other base station in S106; when the second time is reached, the target terminal is handed over from another base station to the next base station of the other base station in S107.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 2, the target terminal 201, the first network device 202, and the second network device 203 are included. The target terminal 201 is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The target terminal may also be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The target terminal may be a mobile phone, a wearable device, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) target terminal, an augmented reality (augmented reality, AR) target terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self-driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the target terminal.

The first network device 202 is a network device corresponding to a serving cell of the target terminal 201, and the second network device 203 is a network device corresponding to a neighboring cell a. Wherein the neighbor cell a is a neighbor cell of the serving cell. It should be noted that the number of neighbors included in the communication system shown in fig. 2 is merely for example, and is not limited to the embodiment of the present application. It should be further noted that, the difference between the network devices corresponding to the serving cell and the neighbor cell a shown in fig. 2 is merely for example, and does not limit the embodiments of the present application.

In fig. 2, a network device corresponding to an oval coverage area of a serving cell where a target terminal 201 is located is a first network device 202 in the figure, and a network device corresponding to an oval coverage area of a neighboring cell a is a second network device 203 in the figure. It should be noted that the number of communication systems shown in fig. 2 is merely for example, and is not limited to the embodiments of the present application.

A network device (e.g., the first network device 202, the second network device 203) is an entity on the network side for transmitting or receiving signals. The network device may be a base station, for example, an NTN base station, an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

A communication processing method provided in the present application is described in detail below.

Referring to fig. 3, fig. 3 is a flowchart of a communication processing method according to an embodiment of the present application. Embodiments of the present application may be performed on a first base station, which may be the first network device 202 shown in fig. 2, and the second network device 203 shown in fig. 2 may correspond to a second base station. As shown in fig. 3, the communication processing method includes, but is not limited to, the following S301 to S302.

S301: the first base station determines a handoff list. The first base station is a base station corresponding to a serving cell where the target terminal is currently located. And the target terminal is planned to access N cells and at least one of switching access parameters corresponding to each cell, wherein N is a positive integer. In one embodiment, the above handoff list may exist in two formats: 1. cell ID list of N cells: 2. cell ID list of N cells and handover access parameters. For the handover access parameter, the target terminal may also actively initiate the cell handover procedure when its own parameter and the handover access parameter meet the handover condition, for example, the angle of the current location of the target terminal is lower than the angle threshold included in the handover access parameter. The first base station may correspond to the source base station mentioned in the foregoing embodiment, or may correspond to a base station corresponding to a subsequent cell recorded on a handover list determined by the source base station. In one embodiment, the first base station determining the above-described handoff list includes two ways.

Mode one: the first base station acquires the above-mentioned handoff list from the third base station. In the case of the first mode, the first base station may be regarded as the next base station to the source base station, and the third base station may be regarded as the source base station, or in other words, the third base station may be regarded as the next base station to the source base station, and the first base station may be the next base station to the third base station. The order between the base stations is determined from the cells recorded on the handover list.

In one embodiment, the third base station may be a base station where a cell previous to the serving cell where the target terminal is currently located is located. The base station of the previous cell determines the first base station of the current service cell through the switching list, and sends the switching list to the first base station. In the above case, the first base station may be a base station in the middle of the handover list, and not the initial base station. Therefore, the first base station may acquire the above-mentioned handoff list by accepting the message sent by the previous base station.

Mode two: the first base station generates the above-mentioned handoff list. In the second aspect, when the first base station is the initial base station, the first base station may generate the handover list and then send the handover list to the base station corresponding to the next cell in the handover list.

In one embodiment, when the first base station finds that the target terminal is within the cell range maintained by the first base station, a conditional handover is configured for the target terminal, and a target cell corresponding to the conditional handover is determined for the target terminal. Taking the first base station as an example to determine to configure the target terminal with two conditional handovers, the first base station will determine two target cells corresponding to the two conditional handovers for the target terminal. Alternatively, the first base station may also configure the target terminal with any other number of conditional handoffs, which is not limited in this embodiment of the present application.

In an embodiment corresponding to the second aspect, the first base station generating the handover list includes: the method comprises the steps that a first base station obtains switching information from base stations corresponding to M cells respectively, wherein M is an integer greater than or equal to N; the first base station generates a switching list according to the acquired switching information, wherein the switching information comprises switching access parameters of a cell for transmitting the switching information. Note that, M is a limitation on the number of cells, and since different cells may correspond to the same base station, the number of M may be greater than or equal to the number of base stations.

It should be further noted that, the first base station may initiate, as the source base station, an inquiry request to obtain handover information corresponding to M cells, where the M cells reply to the first base station with a response message. The replied response message is used for indicating that the target terminal is allowed to access the corresponding cell to the first base station, or indicating that the target terminal is not allowed to access the corresponding cell to the first base station. When replying a response message indicating that the target terminal is not allowed to access the corresponding cell, the first base station does not include the cell corresponding to the base station replying the response message indicating that the target terminal is not allowed to access when generating the handover list.

In one embodiment, the first base station may send an inquiry request to the base station to which the M cells belong, for inquiring whether to allow the target terminal to access, or alternatively, the first base station may specifically inquire to the base station to which the target cell belongs in the M cells: whether or not conditional switching is desired, and if so, which manner of conditional switching is desired, and the manner of conditional switching or the type of conditional switching includes: angle-based conditional switching (angle type), time-based conditional switching (time type). The target cell refers to any one of M cells. The base station to which the target cell belongs responds to the inquiry request and replies a response message, wherein the response message comprises switching information, and the switching information comprises switching access parameters of the cell for sending the switching information, for example: a particular angle or a particular time. That is, if the base station to which the target cell belongs allows the target terminal to access, the angle or time may be recovered, for example: under the condition that alpha is replied in the response message, the base station which indicates that the target cell belongs to allows the target terminal to access, and the base station is switched based on the angle, wherein the threshold value of the angle is alpha; when the angle of the terminal is lower than alpha, the terminal can be switched to the target cell.

In one embodiment, if time-based conditional handover is adopted, the first base station inquires about base stations corresponding to M cells whether access to the cells is allowed (i.e. initiate an inquiry request), and the communication processing method of the present invention may further include: the first base station informs the base station to which the target cell belongs in the M cells through an inquiry request: the target terminal is scheduled to access the target cell at the target moment, i.e. the inquiry request includes a time information (the time information may be, for example, a time value representing 12 points for 30 minutes, or a time range), so that the base station to which the target cell belongs determines whether to allow the target terminal to access within the time value or the time range represented by the time information according to the time information. That is, since the target cell is currently crowded, but in the foreseeable future, the crowding will be alleviated; in this case, there is a possibility that the target cell does not determine when the target terminal is accessed, and at least the current time is crowded, and the base station to which the target cell belongs directly denies the target terminal access. At this time, when the first base station initiates the inquiry request, the base station to which the target cell belongs may be inquired by notifying the time information in the inquiry request, whether the target terminal is allowed to access within the time value or the time range indicated by the time information, what mode may be adopted, a specific access handover parameter, and the like. If the base station to which the target cell belongs allows the target terminal to access in the time value or the time range indicated by the inquiry request, the specific time value is replied.

It should be noted that, taking the case that there are four target cells as an example, the first base station will acquire switching information from four target base stations corresponding to the four target cells, and determine switching access parameters of the four target base stations according to the switching information, so as to generate a switching list according to the switching access parameters corresponding to the four target base stations. In other words, the switching list records the relevant information corresponding to the four target cells that the target terminal can access, that is, the switching list records the four switching access parameters and the target switching cell information in a mapping relation. The complete handoff list generated by the first base station as the source base station is shown in table 1 below.

TABLE 1

In other embodiments, the handover list may also include only the column to which "cell" belongs in table 1, and not the column to which "handover access parameter" belongs.

In an embodiment, taking the example that the target base stations corresponding to the M target cells include a second base station, where the second base station may be a base station where a next target cell of the current serving cell is located, if the first base station is used as a source base station, a method for the first base station to obtain handover information from the second base station may be: the first base station initiates an inquiry request to the second base station; the first base station receives a response message fed back by the second base station, wherein the response message comprises the switching access parameters, and based on the response message or the switching access parameters included in the switching information, a switching list such as table 1 can be generated.

In one embodiment, the inquiry request is used to indicate whether the second base station allows the target terminal to switch to the second base station, and indicates a required handover access parameter when allowing the target terminal to switch to the second base station. For example, a first base station may query a second base station, the query requesting to function as: inquiring whether the second base station hopes to switch in a conditional switching mode; if so, the second base station may continue to be queried as to which manner it wishes to trigger the conditional handoff. It should be noted that, the manner of performing the conditional switching on the target terminal by the trigger may include: angle-based switching and time-based conditional switching may also include other ways of conditional switching, as this application is not limited in this regard. In addition, in the case that the second base station determines that the access of the target terminal can be admitted, the second base station will send a response message for allowing the handover of the target terminal to the first base station. For example, the second base station may respond to the query of the first base station, and the response message may include: whether the second base station itself wants to switch in a conditional switching mode; if so, the second base station itself wishes to trigger the conditional handoff in which way.

In one embodiment, the triggering manner of the conditional handover may also be determined by the first base station. In other words, when the first base station is used as the source base station, it may be actively inquired whether the base station corresponding to each of the M cells including the second base station accesses the target terminal and inquires whether the base station corresponding to each of the M cells including the second base station can be switched to access the target terminal by the angle-based condition, or whether the base station corresponding to each of the M cells including the second base station accesses the target terminal and can be switched to access the target terminal by the time-based condition, and for the base station to be subsequently accessed by the second base station or the like, only a response message including acknowledgement information or a response message replying a specific angle or time value is required. For example, the first base station sends an inquiry request to the second base station, where the inquiry request is used to request the second base station to confirm whether the target terminal is allowed to access the cell corresponding to the second base station at the target angle α, and if the second base station agrees, the second base station performs a response message for indicating that the target terminal is allowed to be accessed at the target angle, and if the second base station does not allow the target terminal to be accessed at the target angle, the second base station returns a response message that the target terminal is not allowed to be accessed. For another example, the first base station sends an inquiry request to the second base station, where the inquiry request is used to request the second base station to confirm whether the target terminal is allowed to access the cell corresponding to the second base station in an angle-based conditional access mode, and if the second base station operates the target terminal to access the cell corresponding to the second base station in an angle-based conditional access mode, the second base station returns a response message including the target angle α, and if not, returns a response message not allowing access.

In one embodiment, for the query request sent by the first base station, there may be two processing manners for the second base station:

mode one: in the case that the first base station does not carry other information (such as specific angle information or specific time information) in the inquiry request, the second base station may indicate in the response message that the target terminal is allowed to adopt the conditional switching, and the triggering mode of the conditional switching that is desired to be adopted. For example: under the condition that the first base station inquires whether the second base station allows the condition switching and wants to adopt the triggering mode of which condition switching, if the second base station allows the condition switching and wants to adopt the triggering mode of which condition switching is an angle-based triggering mode, the second base station replies the condition switching which is hoped to adopt the angle-based triggering mode in a response message and carries a specific angle value in the response message; if the second base station allows the condition switching to be adopted and the triggering mode of the condition switching to be adopted is a time-based triggering mode, the second base station replies the condition switching to be adopted in the response message and carries a specific time value in the response message.

Mode two: in the case that the first base station carries other information (such as specific angle information or specific time information) in the inquiry request, the second base station only needs to indicate whether to allow the target terminal to adopt conditional switching in the replied response message. For example: if the first base station inquires whether the second base station allows the target terminal to access the cell corresponding to the second base station at the target time T1, if the second base station agrees to the inquiry request, the second base station replies the request to allow access in a response message, that is, the second base station carries a parameter value for indicating operation access in the reply response message, for example, the access parameter value carried in the response message is 1; and if the second base station does not agree with the inquiry request, replying that the access is not allowed in the response message, for example, the parameter value carried in the response message is 0. If the first base station inquires whether the second base station allows the target terminal to access the cell corresponding to the second base station in the target time period, if the second base station agrees to the inquiry request, the second base station replies by a response message to allow access or replies by the response message to allow the target terminal to access at a certain moment (such as the target moment T2) in the target time period; if the second base station does not agree with the inquiry request, the response message is returned to the state that the access is not allowed. In the case that the first base station carries an angle value or an angle range in the inquiry request, the second base station may also carry only a parameter value (for example, 1) allowing access in the response message of the reply or carry one or more specific angle values selected from the angle range in the response message.

The angle used to trigger the conditional switch referred to in this application means: the angle of the satellite corresponding to the source base station seen by the target terminal may also refer to the angle of the satellite corresponding to the target base station (second base station, fourth base station, etc.) seen by the target terminal.

In one embodiment, if the second base station itself wants to perform the conditional switching by adopting the triggering mode based on the angle, the response message may further include a threshold value of the angle desired by the second base station; if the second base station itself wants to perform the conditional switching by adopting the triggering mode based on time, the response message may also include the switching time desired by the second base station.

In one embodiment, the response message may further include a total duration that the second base station desires the target terminal to stay in the cell maintained by the base station, so that the base station can configure subsequent conditional switching. Optionally, the response message may further include a message provided by any second base station that may perform conditional switching configuration, which is not limited in this embodiment of the present application.

S302: the first base station sends the switching list to the second base station; the security parameters of the cell corresponding to the first base station are used for generating security information used when data interaction is performed between the second base station and the target terminal. The second base station refers to a base station where the second cell indicated in the handover list is located, that is, a base station where a next target cell of the current serving cell is located when the first base station determines the handover list.

In one embodiment, the first base station may also send the security parameters of the cell to which the first base station corresponds to the second base station. In one embodiment, the first base station allows the fourth base station not to send the security parameters of the cell corresponding to the first base station; wherein, the fourth base station means: and the base station of the next cell of the second cell included in the handover list is located. The second cell corresponds to the second base station mentioned above. The order of the first base station, the second base station, and the fourth base station may be as described above with reference to table 1, and each base station determines the cell of the corresponding location and its base station based on a handover list such as table 1.

The security parameter used for generating the security information used when the data is interacted between the cell corresponding to the fourth base station and the target terminal may be a security parameter of the cell corresponding to the second base station, and the security parameter may be sent to the fourth base station by the second base station. Therefore, the first base station will not send the security parameters of the cell to which the first base station corresponds.

In one embodiment, the first base station will notify the second base station to the base station where the next cell of the second cell included in the handover list is located, i.e. the fourth base station, and send the security parameter of the cell corresponding to the second base station, so that the target terminal can conveniently perform communication service based on the cell corresponding to the fourth base station.

In one embodiment, a fifth base station, a sixth base station, etc. may also be present after the fourth base station. If the base station of the third cell (i.e., the next cell of the second cell) is the fourth base station, the base station of the next cell of the third cell is the fifth base station. If the base station where the fourth cell (i.e., the next cell of the third cell) is located is the fifth base station, the base station where the next cell of the fourth cell is located is the sixth base station.

In one embodiment, when the first base station transmits the handover list to the second base station, the first base station may transmit a sub-list of the handover list to the second base station where the second cell in the handover list is located. Wherein the sub-list includes: and in the complete switching list, at least one of information of a cell behind a second cell corresponding to the second base station and switching access parameters corresponding to the cell behind the second cell corresponding to the second base station. For a complete handoff list as shown in table 1, when a first base station is transmitting a handoff list to a second base station, a sub-list may be generated as shown in table 2 below.

TABLE 2

Switching access parameters	Cell
		Time T2	Handover into cell where fourth base station is located
Angle alpha 1	Handover into cell where fifth base station is located
		Angle alpha 2	Handover into cell where sixth base station is located

Because the second base station receives the handover list, the base station information and the handover access parameters corresponding to the next cell of the second cell can be determined according to the handover list, and the base station information and the handover access parameters corresponding to the second cell and the last cell of the second cell do not need to be known. Therefore, the first base station generates a sub-handover list according to contents except for the handover information related to the cell corresponding to the first base station and the second cell, and transmits the sub-handover list to the second base station.

For example, taking the first base station as the source base station, if there are two conditional handovers in the handover list of the first base station, the sub-handover list is: the source base station generates a relevant list of the second conditional handoff in the complete handoff list. If the switching list of the first base station has ten conditional switches, the sub-switching list is: and the source base station generates a related list of the second to ninth conditional handoffs in the complete handoff list.

In one embodiment, the handover list configured by the first base station for the target terminal may be a complete handover list, on which all cells and/or handover access parameters determined by the first base station to allow access to the target terminal are included. As mentioned above, the switching list sent from the first base station to the second base station may be a complete switching list or may be a sub-list as mentioned above. The target terminal needs to acquire the relevant switching access parameters of each switching and the base station corresponding to the target switching cell. For example, taking the first base station as the source base station as an example, if there are two conditional handovers in the handover list of the first base station, the handover list configured and sent by the first base station for the target terminal includes information (the conditional handover parameters and the target handover cell) related to the two conditional handovers; if the handover list of the first base station has ten conditional handovers, the first base station configures for the target terminal and the handover list sent to the target terminal includes information (the conditional handover parameters and the target handover cell) related to the ten conditional handovers, but the handover list sent by the first base station to the second base station may include only information related to the conditional handover from the second time to the ninth time, as shown in the following tables 3 and 4, and table 3 is the handover list sent to the target terminal.

TABLE 3 Table 3

Switching access parameters	Cell
		Time T1	Handover into cell where second base station is located
Time T2	Handover into cell where fourth base station is located
		Angle alpha 1	Handover into cell where fifth base station is located
Angle alpha 2	Handover into cell where sixth base station is located
		Time T3	Handover into cell where seventh base station is located
Time T4	Handover into cell where eighth base station is located
		Angle alpha 3	Handover into cell where ninth base station is located
Angle alpha 4	Handover into cell where tenth base station is located
		Time T5	Handover into cell where eleventh base station is located
Angle alpha 5	Handover into cell where twelfth base station is located

And table 4 is a list of handovers sent to the second base station:

TABLE 4 Table 4

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In an embodiment, the types of the plurality of handover access parameters recorded in the handover list may be the same type, or the types of the plurality of handover access parameters in the handover list may include at least two different types; the types of the switching access parameters include: the switching conditions corresponding to the angle types are angle-based switching conditions, and the switching conditions corresponding to the time types are time-based switching conditions.

That is, in the embodiment of the present invention, each target base station may indicate the trigger mode of the handover that is desired to be adopted in the response message, or the source base station may actively determine that different conditional handover trigger modes are determined for different target base stations to access the target terminal. Moreover, since there may be a difference between the conditional access manners of different cells, the types of the handover access parameters in the handover list may be the same or different, for example, as shown in table 1, different types of handover access parameters are included, specifically, a time type (corresponding to the handover access parameters of the first row and the second row) and an angle type (corresponding to the handover access parameters of the third row and the fourth row).

Taking the example that there are two conditional switches in the switch list, there will be switch access parameters of two switch processes in the switch list, where the switch access parameters of the two switch processes may be time-based switches, or may be angle-based switches. Alternatively, the above two-time handover access parameter may be a time-based handover for the first time and an angle-based handover for the second time. The triggering conditions of the above two condition switching, namely time-based switching and angle-based switching, are merely used as examples, and the embodiments of the present application are not limited.

By executing the above communication processing method, the first base station acquires the handover list and transmits the handover list to the second base station in the handover process. Therefore, the second base station can acquire the switching plan configured by the first base station for the target terminal through the switching list so as to avoid the second base station from configuring the target terminal again, thereby ensuring that the terminal correctly completes cell switching and simultaneously effectively saving air interface signaling.

Referring to fig. 4, fig. 4 is a flowchart of another communication processing method according to an embodiment of the present application. The communication processing method may be implemented by the target terminal 201 shown in fig. 2, or may be implemented by a chip in the target terminal 201. As shown in fig. 4, the communication processing method includes, but is not limited to, the following S401 to S403.

S401: the target terminal stores the handover list acquired from the base station side. After determining the handoff list, the base station configures the handoff list for the target terminal. Therefore, when the target terminal acquires the switching list, the target terminal can store the switching list for use when entering a switching flow. The handover list obtained by the target terminal from the base station side may be shown by referring to the foregoing example of table 3, and the specific generation process thereof may be referred to the descriptions of the relevant content in the foregoing embodiments, which is not described herein.

S402: and the target terminal is switched to the base station where the next cell is located according to the indication of the switching list. After entering the handover procedure, the target terminal may first acquire its own related data, such as the current angle or the current time value, so as to determine whether to handover to the base station where the next cell is located.

The target terminal may determine the first handover access parameter from the handover list. The first handover access parameter may be a handover access parameter corresponding to the first conditional handover in the conditional list. The first handover access parameter may include a trigger mode for performing the first conditional handover, and the type of the trigger mode may be a time-based handover, or may be an angle-based handover, which is not limited in this application.

Under the condition that the target terminal judges that the target terminal meets the switching condition corresponding to the first switching access parameter, the target terminal switches to the base station where the cell corresponding to the first switching access parameter is located according to the indication of the first switching access parameter in the switching list.

After the target terminal switches to the base station where the next cell is located according to the instruction of the switching list, the target terminal updates the security information with the base station and uses the new security information to perform data interaction. The new security information is generated according to the security parameters of the cell corresponding to the first base station.

S403: and deleting the content of the table entry corresponding to the next cell in the switching list by the target terminal.

As can be seen from the foregoing, after the target terminal is handed over to the base station where the next cell is located according to the indication of the handover list, the handover access parameter corresponding to the first conditional handover in the conditional list is already used. Therefore, the target terminal can delete the content of the corresponding list item of the corresponding next cell in the handover list. It should be noted that, in the optional step S403, in other embodiments, the target terminal may also allow not to delete the entry content corresponding to the next cell in the handover list.

In one embodiment, a target terminal receives a reconfiguration message sent by a base station side; and updating the switching list according to the reconfiguration message.

In one embodiment, taking the example that the first base station notifies the target terminal to reconfigure, the handover plan may be reconfigured for the target terminal when the first base station does not employ the next indication in the handover list. Alternatively, the first base station may redetermine the base station corresponding to another cell as the base station corresponding to the next target cell. Alternatively, the mode of triggering the switching may or may not employ conditional switching. In the case of conditional switching, time-based switching, or angle-based switching may be chosen, as may switching of other triggering conditions. The present application is not limited in this regard.

In one embodiment, after receiving the reconfiguration message sent by the base station side (for example, the first base station), the target terminal may delete all the handover lists stored in the target terminal and reload the handover configuration information sent by the first base station. For example, according to the information provided by the first base station, all the handover lists stored in the target terminal are deleted, and the reconfigured conditional handover is adopted, or the conditional handover may not be adopted. Optionally, the target terminal may update a part of the contents in the handover list stored in the target terminal according to the information provided by the first base station. For example, the target terminal may use the updated condition of the first base station in a subsequent certain step of condition switching; the condition switching of a certain step after the original configuration can be changed into the normal switching, and the condition switching is recovered in the next step, namely the condition switching-normal switching-condition switching.

By executing the communication processing method, the target terminal can switch according to the switching list, and the repeated switching configuration of the receiving is avoided, so that the storage space of the target terminal is saved.

Referring to fig. 5, fig. 5 is a flowchart of another communication processing method according to an embodiment of the present application. Embodiments of the present application may be performed on a second base station, which may be the second network device 203 shown in fig. 2. As shown in fig. 5, the method includes, but is not limited to, the following S501 to S502.

S501: the second base station receives a switching list notification message, wherein the switching list notification message comprises a switching list or a sub-list corresponding to the switching list. Wherein, the switching list includes: and at least one of N cells accessed by the planned target terminal and switching access parameters corresponding to each cell.

It should be noted that, as understood from the foregoing, the first base station may send the sub-handover list to the second base station, except for the handover information related to the second cell. Therefore, the second base station may include the sub-list corresponding to the handover list in the handover list notification message received by the second base station.

S502: the second base station determines the next switching cell from a switching list or a sub-list included in the switching list notification message; and sending a switching list notification message to the base station corresponding to the determined next switching cell.

The second base station can acquire the information related to the next switching cell by inquiring after receiving the switching list notification message because the switching list contains the cell accessed by the planned target terminal. After determining the next handover cell, the second base station may send a handover list notification message to the base station corresponding to the cell. Optionally, the notification list notification message may also be a handover list or a sub-list corresponding to the handover list.

In one implementation, after determining the next handover cell from the handover list or the sub-list included in the handover list notification message, the second base station sends the security parameter of the second base station to the base station corresponding to the next handover cell.

Wherein the security parameter of the second base station is used to generate security information used for interaction data between the next handover cell and the target terminal.

By executing the communication processing method, the second base station can determine the base station corresponding to the next target cell according to the switching list, so that the air interface flow of the second base station for configuring switching for the target terminal is reduced, and the air interface signaling is saved.

Referring to fig. 6, fig. 6 is a specific flowchart of a communication processing method according to an embodiment of the present application. The communication processing method is realized through the interaction among the first base station, the second base station, the fourth base station and the target terminal, and in the embodiment of the invention, the first base station is the source base station, and the second base station and the fourth base station are the base stations of two cells needing to be switched successively. As shown in fig. 6, the communication processing method includes, but is not limited to, the following S601 to S610.

S601: the first base station initiates an interrogation request to the second base station.

The first base station finds that the target terminal is in the range of the NTN cell maintained by the first base station, decides to configure the target terminal with two conditional handovers, and determines the target cell of the two handovers. The first base station initiates a handover request to a base station where the first target cell is located (hereinafter referred to as a second base station), and inquires whether to agree to handover the target terminal into the second target cell. Notably, the message includes security parameters of the target terminal, wherein the security parameters include K _NG-RAN * (Key NG-RAN, one of the parameters used by the base station and target terminal to generate the Key) and NCC (Next Hop Chaining Count, next hop linked list count).

The first base station may query the second base station as to whether the second base station wishes to employ conditional switching, and if so, which manner the second base station wishes to employ. This includes, but is not limited to: angle-based conditional switching, time-based conditional switching.

S602: the second base station transmits a response message to the first base station.

The second base station may respond to the query of the first base station by informing the first base station in a response message: i want to use conditional switching or not, if so, I want to use which conditional switching mode. Specifically, if an angle-based conditional handoff is employed, the second base station desires an angle threshold, if a time-based conditional handoff is employed, the second base station desires a handoff timing, and so on. Optionally, the second base station may also provide the first base station with the "total length of time the target terminal is expected to stay in the cell maintained by the second base station" for the first base station to configure the handover condition.

S603: the first base station initiates an interrogation request to the fourth base station.

The first base station initiates a handover request to a base station where the second target cell is located (hereinafter referred to as a fourth base station), and inquires whether to agree to handover the target terminal into the second target cell. At this time, the first base station cannot provide K _NG-RAN * And NCC because these two parameters can only be determined by the second objectiveThe base station in which the target cell is located, so that the first base station does not contain the security information of the target terminal, i.e. K, in this step _NG-RAN * And NCC.

S604: the fourth base station transmits a response message to the first base station.

The fourth base station may notify the first base station of whether or not the conditional handover is desired, and let the target terminal switch to the cell maintained by the third base station, as in S602. The specific details are the same as those of step 2, and will not be described here again.

Fig. 6 is an example of a target base station corresponding to two target cells. Alternatively, there may be more target base stations corresponding to the target cells, for example, if there are M target base stations corresponding to the target cells, the first base station may initiate an inquiry request to the base stations corresponding to the M target cells, and receive a response message sent by the base stations corresponding to the M target cells.

S605: and the first base station determines a switching list according to the response messages of the second base station and the fourth base station.

The above-mentioned switching list may include a plurality of conditional switching actions. It should be noted that the condition types in the condition switch list may be the same type, for example, the two condition switches are both angle-based switches, i.e., trigger condition one, or the two condition switches are both time-based switches, i.e., trigger condition two; it may also be configured that the two conditions are of different types, such as a first condition switch being an angle-based switch, a second condition switch being a time-based switch, or a first condition switch being a time-based switch, a second condition switch being an angle-based switch.

It should be noted that, the specific content of the above-mentioned first base station determining handoff list is consistent with the corresponding content in S301 in fig. 3, and will not be described herein.

S606: the first base station configures the switching list for the target terminal. For example, table 5:

TABLE 5

Switching access parameters	Cell
		Time T1	Handover into cell where second base station is located
Time T2	Handover into cell where fourth base station is located

It should be noted that the above switching list includes: at least one of two target cells to which the target terminal is planned to access and handover access parameters corresponding to each cell.

S607: the first base station transmits a handoff list notification message to the second base station.

Specifically, the first base station may notify the second base station of the complete list of conditional handoffs, i.e., two conditional handoffs in table 3; it is also possible to notify only the other condition switching list than the first condition switching, i.e., the second bar in table 3. Alternatively, if there are three or more conditional switch lists, the first base station needs to notify all conditional switches in the target base station list, or notify the contents in the second and third conditional switch lists.

S608: and when judging that the target terminal meets the switching condition corresponding to the first switching access parameter, the target terminal is switched from the first base station to the second base station. The first handover access parameter is illustrated as example at time T1.

And when the target terminal judges that the condition of the first conditional switching is met, starting the first switching, namely switching into a cell where the second base station is located. And the second base station synchronously updates the safety information with the target terminal, and transmits data by using the new safety information.

It should be noted that, the handover of the target terminal from the first base station to the second base station is consistent with the corresponding content in S302 in fig. 4, and will not be described herein.

S609: the second base station determines a fourth base station corresponding to the second target cell according to the switching list; and sending a switching list notification message and the security parameters of the second base station to the fourth base station where the determined second target cell is located.

The second base station determines a target base station, namely a fourth base station, of the next conditional handover of the target terminal according to the conditional handover list acquired in the S607; and provides the new security parameters to the fourth base station for the fourth base station to generate new security information.

Note that, the notification message of the handover list sent by the second base station may include a sub-list corresponding to the handover list. The content of S609 is identical to the content of S502, and will not be described here again.

S610: and when judging that the target terminal meets the switching condition corresponding to the switching access parameter corresponding to the second target cell, the target terminal switches from the second base station to the fourth base station. The second handover access parameter is illustrated as time T2.

And when the target terminal judges that the condition of the second conditional switching is met, starting the second switching, namely switching into the cell where the fourth base station is located. The fourth base station updates the security information in synchronization with the target terminal and transmits data using the new security information, where the fourth base station updates the security information according to the security parameters acquired in S609.

By the communication processing method, air interface signaling can be saved more advantageously.

In one embodiment, the base station side may configure the target terminal with a loop condition handoff.

Because the motion trail of each satellite is predetermined, and the operator is considered to deploy a plurality of satellites to realize no dead angle coverage of the world, the satellites can just rotate around the earth at intervals according to the motion trail of the satellites. In view of this, the source base station may configure a cyclic conditional handoff for the target terminal, i.e., from "satellite 1-satellite 2-satellite 3 … satellite X-satellite 1".

In one embodiment, taking the first base station as the target terminal to configure the cyclic conditional handover as an example, the first base station may configure the target terminal with X times of conditional handover according to the number of cells (taking the number of cells as an example) in the cyclic conditional handover. The target terminal can switch according to the configured circulation condition, and gradually trigger the condition switching flow.

In the above-described cycle condition switching, the type of the trigger pattern (i.e., the trigger condition) may be the same or different for each condition switching. The type of triggering mode can be referred to in the foregoing related content, and will not be described herein. Alternatively, the above-mentioned cyclic condition switching may be all condition switching, or a certain time of condition switching may be modified to be a normal switching, which is not limited in this application.

Referring to fig. 7, fig. 7 is a schematic diagram of a communication processing apparatus according to an embodiment of the present application. The communication processing device shown in fig. 7 may be used to perform some or all of the functions of the method embodiments described above with respect to fig. 3 or 6. The device may be an access network device, a device in an access network device, or a device that can be used in a matching manner with an access network device. The apparatus may be applied to the first base station mentioned above. The communication device may also be a chip system. The communication apparatus shown in fig. 7 may include a communication unit 701 and a processing unit 702. The processing unit 702 is configured to perform data processing. The communication unit 701 is integrated with a receiving unit, a transmitting unit, and the like. The communication unit 701 may also be referred to as a transceiving unit. Alternatively, the communication unit 701 may be split into a receiving unit and a transmitting unit. The processing unit 702 and the communication unit 701 are the same, and will not be described in detail. Wherein, the detailed description of each unit is as follows:

the communication unit 701 is configured to send a handover list to a second base station; wherein the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In an embodiment, the communication unit 701 is further configured to notify the second base station to send the security parameter of the second base station to the base station where the next cell of the second cell included in the handover list is located.

In one embodiment, the processing unit 702 is configured to determine the handoff list before the communication unit 701 sends the handoff list to the second base station.

In one embodiment, the processing unit 702 is configured to obtain a handoff list from a third base station.

In one embodiment, the processing unit 702 is further configured to generate a handoff list.

In one embodiment, the processing unit 702 is further configured to obtain handover information from each base station corresponding to M cells, where M is an integer greater than or equal to N; the processing unit 702 is further configured to generate a handover list according to the acquired handover information, where the handover information includes handover access parameters of a cell that sends the handover information.

In one embodiment, the communication unit 701 is further configured to send, to the second base station, a security parameter of a cell corresponding to the first base station; the security parameters of the cell corresponding to the first base station are used for generating security information used when data interaction is performed between the cell corresponding to the second base station and the target terminal.

In one embodiment, the communication unit 701 is further configured to allow, to a fourth base station, not to transmit the security parameter of the cell corresponding to the first base station, where the fourth base station refers to: the handover list includes the base station of the second cell where the next cell is located.

In one embodiment, the communication unit 701 is further configured to, when sending the handover list to the second base station, send a sub-list of the handover list to the second base station where the second cell in the handover list is located; wherein the sub-list comprises: and at least one of information of a cell after the second cell corresponding to the second base station and a handover access parameter corresponding to the cell after the second cell corresponding to the second base station in the handover list.

The embodiment of the present invention also provides another communication processing device, which may be used to perform some or all of the functions of the method embodiments described above in fig. 4 or fig. 6, and the specific structure of which may still be shown in fig. 7. The device can be a terminal device, a device in the terminal device, or a device which can be matched with the terminal device for use. The apparatus may be applied to the above-mentioned target terminal. The communication device may also be a chip system. The communication device according to the embodiment of the present invention may include a communication unit 701 and a processing unit 702. The detailed description of the individual units is as follows:

The processing unit 702 is configured to store a handover list acquired from a base station side; the processing unit 702 is further configured to switch to a base station where a next cell is located according to an instruction of the switch list; wherein the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In an embodiment, the processing unit 702 is further configured to delete the entry content corresponding to the next cell in the handover list.

In one embodiment, the communication processing apparatus further includes: a communication unit 701, configured to receive a reconfiguration message sent by a base station side; the processing unit 702 is further configured to update the handover list according to the reconfiguration message.

The embodiment of the present invention also provides a further communication processing device, which may be used to perform some or all of the functions of the method embodiment described above in fig. 5 or fig. 6, and the specific structure of which may still be shown in fig. 7. The device may be an access network device, a device in an access network device, or a device that can be used in a matching manner with an access network device. The apparatus may be applied to the second base station mentioned above. The communication device may also be a chip system. The communication apparatus shown in fig. 7 may include a communication unit 701 and a processing unit 702. The detailed description of the individual units is as follows:

The communication unit 701 is configured to receive a handover list notification message, where the handover list notification message includes a handover list or a sub-list corresponding to the handover list; wherein, the switching list includes: and at least one of N cells accessed by the planned target terminal and switching access parameters corresponding to each cell.

In one embodiment, the processing unit 702 is configured to determine a next handover cell from a handover list or a sub-list included in the handover list notification message; the communication unit 701 is further configured to send a handover list notification message to a base station corresponding to the determined next handover cell.

In an embodiment, the communication unit 701 is further configured to send the security parameter of the second base station to a base station corresponding to the next handover cell.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures and effects of the described apparatus and units may refer to corresponding procedures in the foregoing method embodiments, and will not be described herein again.

Referring to fig. 8, fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application, which may be used to implement the functions of the network device in fig. 3, fig. 5, or fig. 6. The communication device may be a network device or an apparatus for a network device. The means for the network device may be a system-on-chip or a chip within the network device. The chip system may be composed of a chip or may include a chip and other discrete devices. As shown in fig. 8, the communication device includes at least a communication interface 801, a processor 802, and a memory 803. Wherein the communication interface 801, the processor 802, and the memory 803 may be connected by a bus 804 or other means. The bus is shown in bold lines in fig. 8, and the manner in which other components are connected is merely illustrative and not limiting. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.

In the present embodiment, the communication interface 801 may be a communication interface, circuit, bus, module, or other type of communication interface for communicating with other devices over a transmission medium. For example, communication interface 801 is used in a communication device to enable the device to communicate with other devices. The processor 802 receives and transmits data by using the communication interface 801 and is used to implement the method of the above-described method embodiment. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. The specific connection medium between the communication interface 801, the processor 802, and the memory 803 is not limited in the embodiments of the present application.

Memory 803 may include read only memory and random access memory, and provide instructions and data to processor 802. A portion of memory 803 may also include non-volatile random access memory.

The processor 802 may be a central processing unit (Central Processing Unit, CPU), and the processor 802 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 802 may be any conventional processor or the like.

The communication device may be applied to the aforementioned first base station, wherein:

a memory 803 for storing program instructions.

A processor 802 for invoking program instructions stored in memory 803 for:

invoking the communication interface 801 to send the handoff list to the second base station; the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In one implementation, the second base station refers to a base station where the second cell indicated in the handover list is located.

In one embodiment, the processor 802 is further configured to invoke the communication interface 801 to notify the second base station to send the security parameter of the second base station to the base station where the next cell of the second cell included in the handover list is located.

In one embodiment, the processor 802 is further configured to determine a handoff list before the communication interface 801 sends the handoff list to the second base station.

In one embodiment, the processor 802 is further configured to obtain a handoff list from a third base station.

In one embodiment, the processor 802 is further configured to generate a handoff list.

In one embodiment, the processor 802 is further configured to obtain handover information from each base station corresponding to M cells, where M is an integer greater than or equal to N; the processor 802 is further configured to generate a handover list according to the acquired handover information, where the handover information includes handover access parameters of a cell that sends the handover information.

In one embodiment, the processor 802 is further configured to invoke the communication interface 801 to send, to the second base station, a security parameter of a cell corresponding to the first base station; the security parameters of the cell corresponding to the first base station are used for generating security information used when data interaction is performed between the cell corresponding to the second base station and the target terminal.

In one embodiment, the processor 802 is further configured to invoke the communication interface 801 to allow the fourth base station to not transmit the security parameter of the cell corresponding to the first base station, where the fourth base station refers to: the handover list includes the base station of the second cell where the next cell is located.

In one embodiment, the processor 802 is further configured to invoke the communication interface 801 to send the sub-list of the handover list to the second base station where the second cell in the handover list is located when the handover list is sent to the second base station; wherein the sub-list comprises: and at least one of information of a cell after the second cell corresponding to the second base station and a handover access parameter corresponding to the cell after the second cell corresponding to the second base station in the handover list.

In one embodiment, the communication device may also be applied to the aforementioned second base station, wherein:

a memory 803 for storing program instructions.

A processor 802 for invoking program instructions stored in memory 803 for:

calling a communication interface 801 to receive a switching list notification message, where the switching list notification message includes a switching list or a sub-list corresponding to the switching list; wherein, the switching list includes: and at least one of N cells accessed by the planned target terminal and switching access parameters corresponding to each cell.

In one embodiment, the processor 802 is further configured to determine a next handover cell from a handover list or a sub-list included in the handover list notification message; the processor 802 is further configured to invoke the communication interface 801 to send a handover list notification message to the base station corresponding to the determined next handover cell.

In an embodiment, the processor 802 is further configured to invoke the communication interface 801 to send the security parameter of the second base station to the base station corresponding to the next handover cell.

It will be clear to those skilled in the art that, for convenience and brevity of description, the specific operation and effects of the communication device described in fig. 8 may refer to the corresponding processes in the foregoing method embodiments, which are not described herein again.

Referring to fig. 9, fig. 9 is a schematic diagram of another communication device according to an embodiment of the present application, for implementing the functions of the target terminal in fig. 4 or fig. 6. The communication device may be the aforementioned target terminal or means for a target terminal. The means for the target terminal may be a chip system or a chip within the target terminal. The chip system may be composed of a chip or may include a chip and other discrete devices. As shown in fig. 9, the communication device includes at least a communication interface 901, a processor 902, a memory 903, and a user interface 904. The user interface 904 may be, among other things, a display screen, monitor, etc., medium for interaction and information exchange between a user and the system. Wherein the communication interface 901, the processor 902, the memory 903, and the user interface 904 may be connected by a bus 905 or otherwise. The bus is shown in bold lines in fig. 9, and the manner in which other components are connected is merely illustrative and not limiting. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 9, but not only one bus or one type of bus.

In the present embodiment, the communication interface 901 may be a communication interface, a circuit, a bus, a module, or other type of communication interface for communicating with other devices via a transmission medium. For example, the communication interface 901 is used in a communication device so that the device can communicate with other devices. The processor 902 receives and transmits data using the communication interface 901 and is used to implement the method of the above-described method embodiment. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. The specific connection medium between the communication interface 901, the processor 902, and the memory 903 is not limited in the embodiments of the present application.

Memory 903 may include read only memory and random access memory and provides instructions and data to processor 902. A portion of memory 903 may also include non-volatile random access memory.

The processor 902 may be a central processing unit (Central Processing Unit, CPU), the processor 902 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 902 may be any conventional processor or the like.

a memory 903 for storing program instructions.

A processor 902 for invoking program instructions stored in memory 903 for:

storing a switching list acquired from a base station side; the method is also used for switching to the base station where the next cell is located according to the indication of the switching list; wherein the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

In one embodiment, the processor 902 is further configured to delete the entry content corresponding to the next cell in the handover list.

In one embodiment, the processor 902 is further configured to invoke the communication interface 901 to receive a reconfiguration message sent by the base station side; the processor 902 is further configured to update the handover list according to the reconfiguration message.

It will be clear to those skilled in the art that, for convenience and brevity of description, the specific operation and effects of the communication device described in fig. 9 may refer to the corresponding processes in the foregoing method embodiments, which are not described herein again.

According to another embodiment of the present application, a measuring apparatus as shown in fig. 6 to 7 may be constructed by running a computer program (including a program code) capable of executing the steps involved in the respective methods as shown in fig. 2 to 5 on a general-purpose computing apparatus such as a computer including a processing element such as a Central Processing Unit (CPU), a random access storage medium (RAM), a read only storage medium (ROM), and the like, and a storage element, and the measuring method of the embodiments of the present application may be implemented. The computer program may be recorded on, for example, a computer-readable recording medium, and loaded into and run in the above-described computing device through the computer-readable recording medium.

Based on the same inventive concept, the principle and beneficial effects of the measuring device for solving the problems provided in the embodiments of the present application are similar to those of the measuring device for solving the problems in the embodiments of the method of the present application, and may refer to the principle and beneficial effects of implementation of the method, and are not described herein for brevity.

The embodiment of the present application provides a chip, where the chip may be applied to a communication device such as a target terminal, or may be applied to a communication device such as the first base station and the second base station, where the chip includes a processor and a data interface, where the processor reads instructions stored in a memory through the data interface to execute relevant steps of the communication device such as the target terminal, the first base station and the second base station in the embodiment corresponding to fig. 3 to fig. 6, and detailed description will not be repeated herein with reference to implementation manners provided by the foregoing steps.

In one embodiment, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein the at least one first memory and the at least one processor are interconnected by a circuit, and instructions are stored in the first memory; the at least one second memory and the at least one processor are interconnected by a line, wherein the second memory stores data to be stored in any one of the methods of the first aspect.

The embodiment of the application also provides a chip module which can be applied to communication equipment such as a target terminal, a first base station, a second base station and the like.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the described order of action, as some steps may take other order or be performed simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the readable storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.

The above disclosure is illustrative of a preferred embodiment of the present application and, of course, should not be taken as limiting the scope of the invention, and those skilled in the art will recognize that all or part of the above embodiments can be practiced with modification within the spirit and scope of the appended claims.

Claims

1. A method of communication processing, the method comprising:

the first base station sends the switching list to the second base station; the switching list includes: at least one of N cells accessed by a planned target terminal and switching access parameters corresponding to each cell, wherein N is a positive integer;

the first base station sends the security parameters of the cell corresponding to the first base station to the second base station; the safety parameters of the cell corresponding to the first base station are used for generating safety information used when the second base station interacts data with the target terminal;

and the first base station informs the second base station of sending the security parameters of the second base station to the base station where the next cell of the second cell included in the switching list is located.

2. The method of claim 1, wherein the second base station is the base station in which the second cell indicated in the handover list is located.

3. The method of claim 1, wherein before the first base station sends the handoff list to the second base station, further comprising:

the first base station determines the handoff list.

4. The method of claim 3, wherein the first base station determining the handoff list comprises:

the first base station acquires the handover list from a third base station.

5. The method of claim 3, wherein the first base station determining the handoff list comprises:

the first base station generates the handoff list.

6. The method of claim 5, wherein the first base station generating the handoff list comprises:

the first base station acquires switching information from each base station corresponding to M cells, wherein M is an integer greater than or equal to N;

the first base station generates a switching list according to the acquired switching information, wherein the switching information comprises switching access parameters of a cell for transmitting the switching information.

7. The method of claim 1, wherein security information used in the interaction of data between the second base station and the target terminal is generated based on security parameters of a cell to which the first base station corresponds.

8. The method of claim 1, wherein the first base station allows a base station where a next cell of the second cell is located to not transmit security parameters of a cell corresponding to the first base station.

9. The method according to any of claims 1-8, wherein the types of the plurality of handover access parameters in the handover list are of a same type or the types of the plurality of handover access parameters in the handover list comprise at least two different types; the types of the switching access parameters include: angle type and time type.

10. The method of any of claims 1-8, wherein when the first base station sends a handoff list to the second base station, the first base station sends a sub-list of the handoff list to the second base station where a second cell in the handoff list is located;

wherein the sub-list comprises: and in the switching list, at least one of information of a cell after a second cell corresponding to the second base station and switching access parameters corresponding to the cell after the second cell corresponding to the second base station.

11. A method of communication processing, the method comprising:

The target terminal stores a switching list acquired from a base station side;

the target terminal is switched to the base station where the next cell is located according to the indication of the switching list;

the target terminal uses the safety information between the target terminal and the base station where the next cell is located to conduct data interaction; the security information is generated based on the security parameters of the previous cell;

the switching list includes: and the N cells accessed by the planned target terminal and at least one of the switching access parameters corresponding to each cell are selected, wherein N is a positive integer.

12. The method of claim 11, wherein the method further comprises:

and deleting the table entry content corresponding to the next cell in the switching list by the target terminal.

13. The method of claim 11 or 12, wherein,

receiving reconfiguration information sent by a base station side;

and updating the switching list according to the reconfiguration message.

14. A communication processing method, applied to a second base station, the method comprising:

the second base station receives a switching list notification message, wherein the switching list notification message comprises a switching list or a sub-list corresponding to the switching list; the switching list includes: at least one of N cells accessed by the planned target terminal and switching access parameters corresponding to each cell;

The second base station receives the safety parameters of the cell corresponding to the first base station; the safety parameters of the cell corresponding to the first base station are used for generating safety information used when the second base station interacts data with the target terminal;

and the second base station receives a notification of the security parameters of the second base station sent to the base station where the next cell of the second cell included in the switching list is located.

15. The method of claim 14, wherein the method further comprises:

the second base station determines the next switching cell from a switching list or a sub-list included in the switching list notification message;

and the second base station sends a switching list notification message to the base station corresponding to the determined next switching cell.

16. The method of claim 15, wherein the second base station, after determining the next handover cell from a handover list or a sub-list included in the handover list notification message, further comprises:

and the second base station sends the security parameters of the second base station to the base station corresponding to the next switching cell.

17. A communication processing device comprising means for performing the method of any of claims 1-16.

18. A communication device comprising a processor, a memory and a communication interface, the processor, the memory and the communication interface being interconnected, wherein the memory is adapted to store a computer program, the processor being configured to run the computer program to perform the method according to any of claims 1-16.

19. A chip comprising a processor and a data interface, the processor reading instructions stored on a memory via the data interface to perform the communication processing method of any one of claims 1-10, or to perform the communication processing method of any one of claims 11-13, or to perform the communication processing method of any one of claims 14-16.

20. A chip module comprising the chip of claim 19.