CN114698043A

CN114698043A - Communication processing method and device, communication equipment, chip and chip module thereof

Info

Publication number: CN114698043A
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: 2022-07-01
Anticipated expiration: 2040-12-30
Also published as: CN114698043B; WO2022142832A1

Abstract

The application discloses a communication processing method and device, communication equipment, a chip and a chip module. Wherein, the method comprises the following steps: the first base station sends the switching list to the second base station; the handover list includes: at least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, wherein N is a positive integer. The first base station sends the switching list to the second base station, so that the air interface flow of the second base station for configuring and switching the target terminal can be reduced, and air interface signaling can be saved.

Description

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

Technical Field

The present application 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 transmission process of the signal, in order to save signaling interaction, the base station may configure handover-related information, such as information of a target cell after handover, for the target terminal, so as to complete handover according to the handover-related information. During the whole handover process, related signaling interaction is involved, and how to avoid the waste of signaling becomes a hot issue of research.

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 comprises: at least one of N cells accessed by the planned target terminal and a switching access parameter corresponding to each cell, wherein N is a positive integer.

In an 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: and the first base station informs the second base station of sending the safety parameters of the second base station to the base station of the next cell of the second cell included in the switching list.

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

In an embodiment, the determining, by the first base station, a handover list includes: the first base station obtains a handover list from the third base station.

In an embodiment, the determining, by the first base station, a handover list includes: the first base station generates a handover list.

In one embodiment, the first base station generates a handover list comprising: a 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; and the first base station generates a switching list according to the acquired switching information, wherein the switching information comprises switching access parameters of the cell which sends the switching information.

In one embodiment, the method further comprises: a first base station sends a safety parameter of a cell corresponding to the first base station to a second base station; and the safety information used when the data is interacted between the second base station and the target terminal is generated according to the safety parameters of the cell corresponding to the first base station.

In one embodiment, the first base station allows the base station of the next cell of the second cell not to transmit the security parameters of the cell corresponding to the first base station.

In an embodiment, the types of the multiple handover access parameters in the handover list are the same type, or the types of the multiple handover access parameters in the handover list include at least two different types; wherein, the type of the switching access parameter comprises: an angle type and a 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 sublist comprises: and in the switching list, at least one of the information of the cell after the second cell corresponding to the second base station and the switching access parameter corresponding to the cell after the second cell corresponding to the second base station.

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

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

In an embodiment, the deleting, by the target terminal, entry content corresponding to a next cell in a handover list includes: receiving a reconfiguration message 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 comprises: at least one of N cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

In one embodiment, the method further comprises: the second base station determines the next switching cell from the switching list or the 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 an embodiment, after the second base station determines the next handover cell from the handover list or the sub-list included in the handover list notification message, the method 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 executing the above-mentioned units of the communication processing method.

In a fifth aspect, the present application provides a communication device, including a processor, a memory and a communication interface, where the processor, the memory and the communication interface are connected to each other, where the memory is used for storing a computer program, and the processor is configured to execute the computer program and execute the above mentioned communication processing method.

In a sixth aspect, the present application provides a chip comprising a processor and a data interface, wherein the processor reads instructions stored in a memory through the data interface to execute the communication processing method according to the first aspect, or execute the communication processing method according to the second aspect, or execute 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 at least one of N cells accessed by the planned target terminal and the switching access parameters corresponding to each cell to the next base station, thereby facilitating the target terminal to better complete cell switching and saving space 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 to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

FIG. 1B is a diagram illustrating signal strength distributions of the common cell and the NTN cells;

FIG. 1C is a schematic illustration of angle-based switching;

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

FIG. 1E is a detailed handoff flowchart of a communication processing method;

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

fig. 3 is a flowchart of a communication processing method according to an embodiment of the present application;

fig. 4 is a flowchart of another communication processing method according to 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

The embodiment of the application defines one or more cells which can be switched and accessed by a certain target terminal and conditions required by the cells through generating the switching list, and sends the relevant switching list to the next base station, so that the target base station and the next base station can conveniently perform subsequent switching processing on the target terminal. The present application may be applied to various communication systems, for example, may be applied to a non-terrestrial network (NTN), and may also be applied to a Long Term Evolution (LTE) system, a 5th generation (5G) mobile communication system, and a 5G new air interface (NR) system. The method of the embodiment of the present application is also applicable to various future communication systems, such as a 6G system, or other communication networks.

Among them, for NTN, wireless cellular networks cannot achieve seamless coverage of wireless cellular networks for large-area continuous waters such as sparsely populated places or oceans, but there is a sporadic demand for communication in such areas. Therefore, 3GPP introduced NTN.

The essence of NTN is to place a radio transmitter on the satellite, covering a large area of the ground with radio signals. According to the height of the satellite from the ground, the satellite can be subdivided into a low-orbit satellite, a medium-orbit satellite and a high-orbit satellite, obviously, the higher the satellite orbit is, the larger the surface area of the earth which can be covered is, and therefore, the corresponding cell range is larger. The satellite runs around the earth, and the running speed of the satellites at different orbital heights is different.

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

In some embodiments, the trigger condition for performing the conditional handover between the NTN cells may include multiple types, for example, the handover may be performed based on time as the trigger condition, or based on the angle of the location where the target terminal is located as the trigger condition. NTN cells are different from ordinary terrestrial cells due to the distribution of signal strength in each region within the cell. As shown in fig. 1B, it can be seen that both the general terrestrial cell and the NTN cell have strong cell center signals and weak cell edge signals. However, since the target terminal and the normal cell are usually not in line-of-sight propagation, the signal is reflected, scattered, etc., and the distance from the base station is increased, 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. The target terminal and the NTN cell are generally in line-of-sight propagation, and signal attenuation mainly comes from transmission distance; however, the distance between the cell center and the cell edge is negligible considering the height of the satellite, so that the signal received by the target terminal at the cell edge of the NTN is not much different from the signal received at the cell center of the NTN. Therefore, to some extent, the NTN cell is not suitable for using the signal strength applicable to the normal cell as the trigger condition for the conditional handover. Two trigger conditions for conditional handover applicable to the NTN cell are as follows.

Triggering condition one: angle based switching. As shown in fig. 1C, assuming that the angle of the linear transmission between the target terminal and the satellite is α, the target terminal performs a handover decision by monitoring the change of the angle α. In an 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, the target terminal may be handed over from the source cell to the target cell.

Triggering condition two: time-based handover. Since the moving speed of the satellite is much greater than that of the target terminal, the target terminal can be approximately considered to be stationary. In the case of cell radius determination, the length of time that the target terminal stays in an NTN cell may be calculated in advance. Based on the calculation result, the source base station can determine the time when the target terminal is switched to the target cell according to the time 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 can be determined that the target terminal is handed over to the target cell at time T2.

In a specific handover process, since the motion trajectory of each satellite in the NTN deployment is determined, the source cell may know the motion trajectory of the next satellite covering the target terminal, and the like. Therefore, the source base station can configure multiple handovers at once. The target terminal may perform the handover action according to the handover list, and for the subsequent base station, the handover list may not be configured for the target terminal. Therefore, the air interface flow of the base station for switching the target terminal configuration can be reduced, and the air interface signaling is saved.

Fig. 1E is a specific handover procedure of a communication processing method. In fig. 1E, the trigger condition two is taken as an example, and two time-based handovers are configured for the target terminal. First, in S101, a target terminal performs data interaction with a source base station, for example: the target terminal reports the current position to the source base station; in the data interaction process, in S102, the source base station makes a handover decision, for example: the figure is an example of the source base station determining two time-based handovers; after the source base station performs the handover decision, in S103, the source base station notifies the target terminal to handover to another base station at a first time and handover to a next base station of the another base station at a second time; after receiving the notification message of the source base station, in S104, the target terminal continues to use the source base station for downlink/uplink transmission; when the first time is reached, in S105, the target terminal is switched 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 an architecture diagram of a communication system according to an embodiment of the present disclosure. As shown in fig. 2, the system includes a target terminal 201, a first network device 202, and a second network device 203. The target terminal 201 is an entity, such as a mobile phone, on the user side for receiving or transmitting signals. The target terminal may also be referred to as a terminal (terminating), User Equipment (UE), Mobile Station (MS), Mobile Terminal (MT), or the like. The target terminal may be a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) target terminal, an Augmented Reality (AR) target terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote surgery (remote management), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiment of the present application does not limit the specific technology and the specific device 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 the neighboring cell a. And the adjacent cell a is the adjacent cell of the service cell. It should be noted that the number of neighboring cells included in the communication system shown in fig. 2 is only 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 neighboring cell a shown in fig. 2 is merely used for example, and does not form a limitation to the embodiment of the present application.

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

The network devices (e.g., the first network device 202, the second network device 203) are entities on the network side for transmitting or receiving signals. The network device may be a base station, for example, the network device may be an NTN base station, an evolved NodeB (eNB), a transmission point (TRP), a next generation base station (gNB) in an NR system, a base station in another future mobile communication system, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.

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 disclosure. The embodiment 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 handover list. The first base station is a base station corresponding to a service cell where the target terminal is located currently. At least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, wherein N is a positive integer. In one embodiment, the above switching list may exist in two formats: 1. cell ID list of N cells: 2. a cell ID list of N cells and handover access parameters. For the handover access parameter, the target terminal may also actively initiate a cell handover procedure when the parameters of the terminal and the handover access parameter satisfy the handover condition, for example, the angle of the current position 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, and may also 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 determines the handover list in the following two ways.

The first method is as follows: the first base station acquires the switching list from the third base station. In the case of the first method, the first base station may be considered as a base station next to the source base station and the third base station is the source base station, or the third base station may be considered as a base station next to the source base station and the first base station is a base station next to the third base station. The order between the base stations is determined according to the cells registered on the handover list.

In one embodiment, the third base station may be a base station of a cell previous to a serving cell where the target terminal is currently located. And 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 is not the initial base station. Therefore, the first base station may obtain the handover list by receiving a message sent by the previous base station.

The second method comprises the following steps: the first base station generates the handover list. In the second embodiment, when the first base station is the initial base station, the first base station may generate the handover list and send the handover list to the base station corresponding to the next cell in the handover list.

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

In an embodiment corresponding to the second method, the generating, by the first base station, the handover list includes: a first base station acquires switching information from base stations corresponding to M cells respectively, wherein M is an integer greater than or equal to N; and the first base station generates a switching list according to the acquired switching information, wherein the switching information comprises switching access parameters of the cell which sends the switching information. It should be noted 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 as the source base station may initiate an inquiry request to acquire the handover information corresponding to M cells, where the M cells reply a response message to the first base station. The replied response message is used to indicate to the first base station that the target terminal is allowed to access the corresponding cell, or to indicate to the first base station that the target terminal is not allowed to access the corresponding cell. When replying the 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 switching list.

In an embodiment, the first base station may send an inquiry request to a base station to which the M cells belong, for inquiring whether to allow the target terminal to access, and optionally, the first base station may specifically inquire, to the base station to which the target cell in the M cells belongs: whether conditional switching is desired or not, 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 the M cells. The base station to which the target cell belongs responds to the query request, and replies a response message, where the response message includes handover information, and the handover information includes handover access parameters of the cell that sent the handover 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 replied, such as: under the condition that the response message replies alpha, the base station which indicates the target cell belongs to allows the target terminal to access, and the condition switching is based on the angle, and the threshold value of the angle is alpha; and when the angle of the terminal is lower than alpha, switching to the target cell.

In an embodiment, if the time-based conditional handover is adopted, and the first base station queries the base stations corresponding to the M cells whether to allow access to the cells (i.e., initiates a query request), the communication processing method according to 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 the inquiry request: the target terminal is planned to access the target cell at the target time, that is, the inquiry request includes a time information (the time information may be, for example, a time value representing 12 o' clock and 30 min, 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 congested, the congestion will be alleviated in the foreseeable future; in this case, the target cell is uncertain when the target terminal will be accessed, and at least at the present moment, the cell is crowded, and the base station to which the target cell belongs may directly refuse the target terminal to access. At this time, when initiating the inquiry request, the first base station may inquire, by notifying the time information in the inquiry request, the base station to which the target cell belongs, whether the target terminal is allowed to access within the time value or the time range indicated by the time information, and what kind of access, specific access handover parameters, and the like may be used for access. If the base station to which the target cell belongs allows the target terminal to access within the time value or the time range indicated by the inquiry request, the specific time value can be replied.

It should be noted that, also taking the case that there are four target cells as an example, the first base station acquires handover information from four target base stations corresponding to the four target cells, and determines handover access parameters of the four target base stations according to the handover information, so as to generate a handover list according to the handover access parameters corresponding to the four target base stations. In other words, the handover list records the relevant information corresponding to the four target cells that the target terminal can access, that is, the handover list records the four handover access parameters and the target handover cell information in a mapping relationship. The complete handover 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 only include the column to which "cell" in table 1 belongs, and not include the column to which "handover access parameter" belongs.

In an embodiment, taking an example that the target base station corresponding to the M target cells includes a second base station, the second base station may be a base station where a next target cell of the current serving cell is located, and if the first base station is used as the source base station, the method for the first base station to obtain the 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 allowing the target terminal to switch, which is fed back by the second base station, and includes the handover access parameter, and based on the response message or the handover access parameter included in the handover information, a handover list such as table 1 may be generated.

In one embodiment, the query request is used to indicate whether the second base station allows the target terminal to handover to the second base station, and to indicate the required handover access parameters when the target terminal is allowed to handover to the second base station. For example, a first base station may make an inquiry to a second base station, the inquiry request acting to: inquiring whether the second base station wants to switch in a conditional switching mode; if so, the second base station may continue to be queried as to which way the second base station wishes to trigger the conditional switch. It should be noted that the manner of triggering conditional switch on the target terminal may include: the angle-based switching and the time-based conditional switching may also include conditional switching in other manners, which is not limited in this application. It should be noted that, in the case that the second base station determines that the target terminal can be admitted, the second base station will send a response message to the first base station, where the response message allows the target terminal to be handed over. 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 wants to switch by adopting a condition switching mode; if so, the second base station itself wishes to trigger the conditional switch in which manner.

In one embodiment, the triggering manner of the conditional switch 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 actively inquire whether the base station corresponding to each of the M cells including the second base station accesses the target terminal and whether the base station can access the target terminal through the angle-based condition handover, or actively inquire whether the base station corresponding to each of the M cells including the second base station accesses the target terminal and whether the base station can access the target terminal through the time-based condition handover. 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 to allow the target terminal 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 may perform a reply of a response message indicating that the target terminal is confirmed to be accessed at the target angle, and if not, the second base station may reply of a response message indicating 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 determine whether to allow the target terminal to access the cell corresponding to the second base station in the angle-based conditional handover manner, and the second base station may reply a response message including the target angle α if the target terminal is operated to access the cell corresponding to the second base station in the angle-based conditional handover manner, or may reply a response message that does not allow the target terminal to access if the target terminal is not allowed.

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

the first method is as follows: in 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 reply response message whether the target terminal is allowed to adopt the conditional handover, and the trigger mode of the conditional handover 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 hopes to adopt the triggering mode of which condition switching, if the second base station allows the condition switching and the triggering mode of the condition switching hoped to adopt is the triggering mode based on the angle, the second base station replies the condition switching hoped to adopt the angle in the response message, and the response message carries a specific angle value; if the second base station allows the condition switching to be adopted and the desired condition switching triggering mode is the time-based triggering mode, the second base station replies that the time-based condition switching is desired to be adopted in the response message and carries a specific time value in the response message.

The second method comprises the following steps: under the condition 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 the target terminal is allowed to adopt conditional switching or not in the replied response message. For example: if the first base station queries 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 query request, the second base station replies an access permission message, that is, the second base station carries a parameter value for indicating operation access in the replied response message, for example, the access parameter value carried in the response message is 1; when the second base station does not agree with the query request, it is sufficient to reply in the response message that access is not allowed, 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, under the condition that the second base station agrees the inquiry request, the second base station replies permission access through a response message or allows the target terminal to access at a certain moment (such as target moment T2) in the target time period through a response message; in the case that the second base station does not agree with the above-mentioned inquiry request, it suffices to reply with no access permission in the response message. In case the first base station carries an angle value or an angle range in the inquiry request, the second base station may also carry in the reply response message only the parameter value (e.g. 1) allowing access or carry in the response message one or more specific angle values selected from the angle range.

The angles used to trigger the condition switching in the present application refer to: 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 an embodiment, if the second base station itself desires to perform the conditional handover by using an angle-based triggering method, the response message may further include a threshold value of an angle desired by the second base station; if the second base station itself wants to perform the conditional handover by using the time-based triggering method, the response message may further include a handover time that the second base station wants.

In an embodiment, the response message may further include a total time length that the second base station desires the target terminal to stay in the cell maintained by the base station, so that the base station configures the subsequent conditional handover. Optionally, the response message may further include a message that is provided by any second base station and is capable of performing conditional handover 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 are exchanged between the second base station and the target terminal. The second base station is a base station where the second cell indicated in the handover list is located, that is, the base station where the 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 further send the security parameter of the cell corresponding to the first base station 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: the base station of the next cell of the second cell included in the handover list is located. The second cell corresponds to the above-mentioned second base station. The order of the first base station, the second base station and the fourth base station may be as described with reference to table 1 above, each base station determining the cell and its base station of the corresponding location based on a handover list such as table 1.

It should be noted that the security parameter of the security information used when data interaction is performed between the cell corresponding to the fourth base station and the target terminal may be the 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 transmit the security parameters of the cell corresponding to the first base station.

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

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 in which the third cell (i.e., the next cell of the second cell) is located is the fourth base station, the base station in which the next cell of the third cell is located is the fifth base station. If the base station in which the fourth cell (i.e., the next cell of the third cell) is located is the fifth base station, the base station in which the next cell of the fourth cell is located is the sixth base station.

In one embodiment, when the first base station sends the handover list to the second base station, the first base station may send a sub-list of the handover list to the second base station in which the second cell in the handover list is located. Wherein the sub-list comprises: and in the complete switching list, at least one of the information of the cell after the second cell corresponding to the second base station and the switching access parameter corresponding to the cell after the second cell corresponding to the second base station. For a complete handover list as shown in table 1, when the first base station is transmitting the handover list to the second base station, a sub-list may be generated, which is shown in table 2 below.

TABLE 2

Handover access parameters	Cell
		Time T2	Switching into the cell of the fourth base station
Angle alpha 1	Switching into the cell of the fifth base station
		Angle alpha 2	Switching into the cell of the sixth base station

Because the second base station can determine the base station information and the handover access parameter corresponding to the next cell of the second cell according to the handover list after receiving the handover list, the base station information and the handover access parameter corresponding to the second cell and the previous cell of the second cell do not need to be known. Therefore, the first base station generates a sub-handover list according to the contents except the handover information related to the cell corresponding to the first base station and the second cell, and sends the sub-handover list to the second base station.

For example, taking the first base station as the source base station as an example, if the handover list of the first base station has two conditional handovers, the sub-handover list is: a list of correlations for a second conditional handover in the complete handover list generated by the source base station. If the switching list of the first base station has ten times of condition switching, the sub-switching list is: and the source base station generates a relevant list of the second to ninth conditional handovers in the complete handover list.

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

TABLE 3

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

And table 4 is the handover list sent to the second base station:

TABLE 4

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; wherein the type of the handover access parameter comprises: the switching conditions corresponding to the angle type are angle-based switching conditions, and the switching conditions corresponding to the time type are time-based switching conditions.

That is to say, in the embodiment of the present invention, each target base station may specify a handover trigger mode desired to be used in the response message, or the source base station may actively determine different conditional handover trigger modes for different target base stations to access the target terminal. Moreover, because different cells may have different conditional handover modes for access, the types of 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, the types include a time type (corresponding to the handover access parameters in the first row and the second row) and an angle type (corresponding to the handover access parameters in the third row and the fourth row).

Taking an example of two times of conditional switching in the switching list, the switching list will have two times of switching access parameters of the switching process, and the switching access parameters of the two times of switching processes may both be time-based switching or both may be angle-based switching. Optionally, the 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 for switching between the two conditions, that is, the time-based switching and the angle-based switching, are only used as examples, and the embodiments of the present application are not limited thereto.

By executing the communication processing method, the first base station acquires the switching list and sends the switching list to the second base station in the switching process. Therefore, the second base station can obtain 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 being configured for the target terminal again, thereby ensuring that the terminal can correctly complete cell switching and 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 disclosure. 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 handover list, the base station configures the handover list for the target terminal. Therefore, when acquiring the handover list, the target terminal may store the handover list for use when entering the handover procedure. The handover list acquired by the target terminal from the base station side may refer to the example shown in table 3, and the specific generation process may refer to the description of the related content in each of the foregoing embodiments, which is not described herein again.

S402: and the target terminal is switched to the base station of the next cell according to the instruction of the switching list. After entering the handover procedure, the target terminal may first acquire relevant data of itself, such as a current angle or a current time value, so as to determine whether to handover to the base station of the next cell.

The target terminal may determine a 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 triggering manner for performing the first conditional handover, where the triggering manner may be a time-based handover or an angle-based handover, and the application is not limited thereto.

And 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.

It should be noted that, after the target terminal is switched 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 performs data interaction using the new security information. The new security information is generated according to the security parameters of the cell corresponding to the first base station.

S403: and the target terminal deletes the entry content corresponding to the next cell in the switching list.

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 instruction of the handover list, the handover access parameter corresponding to the first conditional handover in the condition list is already used. Therefore, the target terminal may delete the entry content corresponding to the next cell in the handover list. It should be noted that S403 is an optional step, and in other embodiments, the target terminal may also allow to not 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 an embodiment, taking the first base station as an example to notify the target terminal to perform reconfiguration, when the first base station does not adopt the next step indication in the handover list, the handover plan may be reconfigured for the target terminal. Optionally, the first base station may determine a base station corresponding to another cell as a base station corresponding to a next target cell again. Optionally, the manner of triggering the switching may be conditional switching, or may not be conditional switching. When the condition switching is adopted, the switching based on time or the switching based on angle can be selected to be adopted, and the switching based on other trigger conditions can also be adopted. The present application is not limited to the above.

In an embodiment, after receiving a reconfiguration message sent by a base station side (taking a first base station as an example), the target terminal may delete all handover lists stored in the target terminal itself, and reload handover configuration information sent by the first base station. For example, all handover lists stored by the target terminal are deleted according to the information provided by the first base station, and the reconfigured conditional handover is adopted, or the conditional handover may not be adopted. Optionally, the target terminal may also update a part of contents in the handover list stored by the target terminal according to the information provided by the first base station. For example, the target terminal may perform the condition updated by the first base station in a subsequent condition handover; or changing the condition switching of a certain step of the condition switching configured originally into the common switching, and recovering the condition switching in the next step, namely 'condition switching-common switching-condition switching'.

By executing the communication processing method, the target terminal can switch according to the switching list, and repeated switching configuration 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 disclosure. The embodiment of the present application may be executed 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: and 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 comprises: at least one of N cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

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

S502: the second base station determines the next switching cell from the switching list or the 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.

Since the handover list includes the cell to which the intended target terminal is accessed, the second base station can acquire the information related to the next handover cell by querying after receiving the handover list notification message. 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 the second base station determines 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.

The security parameters of the second base station are used for generating security information used for data interaction between the next switching 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 for the target terminal to be configured and switched by the second base station is reduced, and air interface signaling is saved.

Referring to fig. 6, fig. 6 is a flowchart illustrating a communication processing method according to an embodiment of the present disclosure. In the embodiment of the present invention, the first base station is a source base station, and the second base station and the fourth base station are base stations where two cells that need to be switched successively are located. 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 inquiry 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, determines to configure two times of conditional switching for the target terminal, and determines the target cell switched twice. The first base station initiates a handover request to a base station (hereinafter referred to as a second base station) where the first target cell is located, and inquires whether to approve the handover of the target terminal into the second target cell. Notably, the message includes security parameters of the target terminal, and the security parameters include K_NG-RANKey NG-RAN, one of the parameters used by the base station and the target terminal to generate the Key, and NCC (Next Hop Chaining Count).

The first base station may ask the second base station whether the second base station wishes to use conditional handover, and if so, which manner of conditional handover the second base station wishes to use. Here include but are not limited to: angle-based conditional switching, time-based conditional switching.

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

The second base station may, in response to the interrogation by the first base station, inform the first base station in a response message to: i want to adopt the condition switching, if yes, I want to adopt which condition switching mode. Specifically, the angle threshold desired by the second base station if angle-based conditional handover is employed, the time of handover desired by the second base station if time-based conditional handover is employed, etc. Optionally, the second base station may also provide the "total length of time the target terminal is expected to stay in the cell maintained by the second base station" to the first base station for the first base station to configure the handover condition.

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

The first base station initiates a handover request to a base station (hereinafter referred to as a fourth base station) where the second target cell is located, and inquires whether to approve the handover of the target terminal into the second target cell. At this time, the first base station can not provide K_NG-RANAnd NCC, since these two parameters can only be provided by the base station where the second target cell is located, the first base station does not contain security information of the target terminal, i.e. K, in this step_NG-RANAnd NCC.

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

The fourth base station may also notify the first base station whether it wants to adopt conditional handover, so that the target terminal is handed over to the cell maintained by the third base station, as in S602. The details are the same as step 2 and are not described herein again.

Fig. 6 illustrates an example in which there are two target base stations corresponding to target cells. Optionally, 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 the 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 handover list may include a plurality of conditional handover behaviors. It should be noted that the condition types in the condition switching list may be the same type, for example, both the condition switching are angle-based switching, that is, trigger condition one, or both the condition switching are time-based switching, that is, trigger condition two; it is also possible to configure two different types of conditions, such as the first conditional switch being an angle-based switch and the second conditional switch being a time-based switch, or the first conditional switch being a time-based switch and the second conditional switch being an angle-based switch.

It should be noted that the specific content of the handover list determined by the first base station is consistent with the corresponding content in S301 in fig. 3, and is not described herein again.

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

TABLE 5

Handover access parameters	Cell
		Time T1	Switching into the cell of the second base station
Time T2	Switching into the cell of the fourth base station

It should be noted that the handover list includes: and at least one of two target cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

S607: the first base station sends the switching list notification message to the second base station.

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

S608: and when the target terminal judges 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 in the figure is illustrated as time T1.

And when the target terminal judges that the condition of the first condition switching is met, starting the first switching, namely, switching into the cell where the second base station is positioned. And the second base station and the target terminal synchronously update the safety information and transmit data by using the new safety information.

It should be noted that the above-mentioned target terminal is switched from the first base station to the second base station, which is the same as the corresponding content in S302 in fig. 4, and is not described herein again.

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 determined fourth base station where the second target cell is located.

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

It should be noted 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 the above S609 is the same as the content of the above S502, and is not described herein again.

S610: and when the target terminal judges that the target terminal meets the switching condition corresponding to the switching access parameter corresponding to the second target cell, the target terminal is switched 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 to enter the cell where the fourth base station is located. And the fourth base station updates the safety information synchronously with the target terminal and transmits data by using the new safety information, wherein the fourth base station updates the safety information according to the safety parameters acquired in the S609.

The communication processing method described in this embodiment is more favorable for saving air interface signaling.

In one embodiment, the base station side may configure cyclic conditional handover for the target terminal.

Because the motion trail of each satellite is predetermined and the operator can deploy a plurality of satellites to realize global dead-angle-free coverage, the satellite can just rotate around the earth for one circle at intervals according to the motion trail of the satellite. 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 an embodiment, for example, the first base station configures cyclic condition switching for the target terminal, and the first base station may configure conditional switching for the target terminal X times according to the number of cells in the cyclic condition switching (for example, the number of cells is X). The target terminal can switch according to the configured circulating condition and gradually trigger the condition switching process.

In the above-described cyclic condition switching, the types of trigger modes (i.e., trigger conditions) for each condition switching may be the same or different. The types of the triggering methods can be referred to the related contents, and are not described herein. Optionally, the cyclic condition switching may all adopt condition switching, or a certain condition switching may be modified into a common switching, which is not limited in the present application.

Referring to fig. 7, fig. 7 is a schematic diagram of a communication processing apparatus according to an embodiment of the present disclosure. The communication processing apparatus shown in fig. 7 may be used to perform part or all of the functions in the method embodiments described in fig. 3 or fig. 6 above. The device may be an access network device, a device in the access network device, or a device capable of being used with the access network device. The apparatus may be applied to the above-mentioned first base station. Wherein, the communication device can 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 integrates a receiving unit, a transmitting unit, and the like. The communication unit 701 may also be referred to as a transceiving unit. Alternatively, communication section 701 may be divided into a reception section and a transmission section. The processing unit 702 and the communication unit 701 are similar, and are not described in detail below. Wherein, the detailed description of each unit is as follows:

the communication unit 701 is configured to send a handover list to the second base station; wherein the handoff list comprises: at least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, 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 a base station where a cell next to the second cell is located, where the cell is included in the handover list.

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

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

In an embodiment, the processing unit 702 is further configured to generate a handover list.

In an 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 obtained handover information, where the handover information includes a handover access parameter of a cell that sends the handover information.

In an embodiment, the communication unit 701 is further configured to send a security parameter of a cell corresponding to the first base station 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 are exchanged 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 a fourth base station not to transmit the security parameter of the cell corresponding to the first base station, where the fourth base station is: the handover list includes a base station of a next cell of the second cell.

In an 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 sublist comprises: and in the switching list, at least one of the information of the cell after the second cell corresponding to the second base station and the switching access parameter corresponding to the cell after the second cell corresponding to the second base station.

The embodiment of the present invention further provides another communication processing apparatus, which may be used to perform part or all of the functions in the method embodiments described in fig. 4 or fig. 6, and its specific structure may still be shown with reference to fig. 7. The device may be a terminal device, or a device in the terminal device, or a device capable of being used in cooperation with the terminal device. The apparatus may be applied to the above-mentioned target terminal. Wherein, the communication device can also be a chip system. The communication apparatus according to the embodiment of the present invention may include a communication unit 701 and a processing unit 702. The detailed description of each unit 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 the instruction of the handover list; wherein the handoff list comprises: at least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, wherein N is a positive integer.

In an embodiment, the processing unit 702 is further configured to delete 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.

Still another communication processing apparatus according to an embodiment of the present invention is provided, where the communication processing apparatus may be configured to perform some or all of the functions in the method embodiments described in fig. 5 or fig. 6, and a specific structure of the communication processing apparatus may still be as shown in fig. 7. The device may be an access network device, a device in the access network device, or a device capable of being used with the access network device. The apparatus may be applied to the above-mentioned second base station. Wherein, the communication device can 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 each unit is as follows:

the communication unit 701 is configured 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 comprises: at least one of N cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

In an 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 the 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 a next handover cell.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, specific working processes and effects of the described apparatuses and units may refer to corresponding processes in the foregoing method embodiments, and are not described herein again.

Referring to fig. 8, fig. 8 is a schematic diagram of a communication device according to an embodiment of the present disclosure, which can 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. The communication interface 801, the processor 802, and the memory 803 may be connected by a bus 804 or otherwise. The bus lines are shown in fig. 8 as thick lines, and the connection between other components is merely illustrative and not intended to be limiting. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.

In the subject embodiment, the communication interface 801 may be a communication interface, circuit, bus, module, or other type of communication interface for communicating with other devices via a transmission medium. For example, communication interface 801 is used in communication devices to allow the device to communicate with other devices. The processor 802 utilizes the communication interface 801 to transceive data and is configured to implement the methods of the above-described method embodiments. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The specific connection medium among the communication interface 801, the processor 802, and the memory 803 is not limited in the embodiment of the present application.

The memory 803 may include both read-only memory and random-access memory, and provides instructions and data to the processor 802. A portion of the memory 803 may also include non-volatile random access memory.

The Processor 802 may be a Central Processing Unit (CPU), and the Processor 802 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. 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 a memory 803 for:

calling a communication interface 801 to send the switching list to the second base station; the handover list includes: at least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, 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 an 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 the handover list before the communication interface 801 sends the handover list to the second base station.

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

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

In an 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 obtained handover information, where the handover information includes a handover access parameter of a cell that sends the handover information.

In an embodiment, the processor 802 is further configured to invoke the communication interface 801 to send the security parameter of the cell corresponding to the first base station 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 are exchanged between the cell corresponding to the second base station and the target terminal.

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

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

In one embodiment, the communication device may be further applied to the second base station, where:

a memory 803 for storing program instructions.

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

calling a communication interface 801 to receive 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 comprises: at least one of N cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

In an 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 can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and effect of the communication device described in fig. 8 may refer to the corresponding process in the foregoing method embodiment, and 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, configured to implement the functions of the target terminal in fig. 4 or fig. 6. The communication device may be the aforementioned target terminal or an apparatus for a target terminal. The means for the target terminal may be a system-on-chip 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. User interface 904 may be, among other things, a display screen, display, etc., which is used as a medium for interaction and information exchange between a user and the system. 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 lines are shown in fig. 9 as thick lines, and the connection between other components is merely illustrative and not intended to be limiting. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate 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 types of communication interfaces for communicating with other devices through 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 transceives data using the communication interface 901 and is configured to implement the methods of the above-described method embodiments. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The embodiment of the present application does not limit the specific connection medium among the communication interface 901, the processor 902, and the memory 903.

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

The Processor 902 may be a Central Processing Unit (CPU), and the Processor 902 may also be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. 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 the memory 903 for:

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

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

In an 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 can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and effect of the communication device described in fig. 9 may refer to the corresponding process in the foregoing method embodiment, and are not described herein again.

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

Based on the same inventive concept, the principle and the advantageous effect of solving the problem of the measurement device provided in the embodiment of the present application are similar to the principle and the advantageous effect of solving the problem of the measurement device in the embodiment of the present application, and for brevity, the description thereof will not be repeated herein.

An embodiment of the present application provides a chip, which may be applied to a communication device such as a target terminal, and may also be applied to the aforementioned communication device such as a first base station, a second base station, and the like, where the chip includes a processor and a data interface, and the processor reads an instruction stored in a memory through the data interface to execute steps related to the communication device such as the target terminal, the first base station, the second base station, and the like in the embodiment corresponding to fig. 3 to 6, and specific reference may be made to implementation manners provided in the above steps, and details are not repeated here.

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

The embodiment of the present application further provides a chip module, which can be applied to communication devices such as a target terminal, a first base station, and a second base station, and the chip module includes the above chip that can be applied to a network device.

Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (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 above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this 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 can be merged, divided and deleted according to actual needs.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, which may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by 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 handover list includes: at least one of N cells accessed by the planned target terminal and a handover access parameter corresponding to each cell, wherein N is a positive integer.

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

3. The method of claim 1, wherein the method further comprises:

and the first base station informs the second base station of sending the safety parameters of the second base station to the base station of the next cell of the second cell included in the switching list.

4. The method of claim 1, wherein prior to the first base station transmitting the handoff list to the second base station, further comprising:

the first base station determines the handover list.

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

the first base station obtains the switching list from a third base station.

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

the first base station generates the handover list.

7. The method of claim 6, 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;

and 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 sending the switching information.

8. The method of claim 1, wherein the method further comprises:

the first base station sends the safety parameters of the cell corresponding to the first base station to the second base station;

and the safety information used when the data is interacted between the second base station and the target terminal is generated according to the safety parameters of the cell corresponding to the first base station.

9. The method of claim 3, wherein the first base station allows the base station of the next cell of the second cell not to transmit the security parameter of the cell corresponding to the first base station.

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

11. The method according to any of claims 1-9 c h a r a c t e r i z e d i n that when the first base station sends a 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 sublist comprises: and in the handover list, 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 a cell after the second cell corresponding to the second base station.

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

the target terminal stores the switching list acquired from the base station side;

the target terminal is switched to the base station of the next cell according to the instruction of the switching list;

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

and the target terminal deletes the entry content corresponding to the next cell in the switching list.

14. The method of claim 12 or 13,

receiving a reconfiguration message sent by a base station side;

and updating the switching list according to the reconfiguration message.

15. 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 handover list includes: at least one of N cells accessed by the planned target terminal and the corresponding handover access parameter of each cell.

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

the second base station determines the next switching cell from the switching list or the 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.

17. The method as claimed in claim 16, wherein the second base station, after determining the next handover cell from the handover list or the 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.

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

19. 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 configured to store a computer program, and the processor is configured to execute the computer program to perform the method according to any one of claims 1 to 17.

20. A chip comprising a processor and a data interface, the processor reading instructions stored on a memory through the data interface to perform the communication processing method of any of claims 1-11, or to perform the communication processing method of any of claims 12-14, or to perform the communication processing method of any of claims 15-17.

21. A chip module, characterized in that it comprises a chip according to claim 20.