CN114828108A

CN114828108A - Non-participating base station handover method, device and system

Info

Publication number: CN114828108A
Application number: CN202110120153.XA
Authority: CN
Inventors: 韦秀梅; 刘星; 张颖哲; 李容
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-07-29
Anticipated expiration: 2041-01-28
Also published as: CN114828108B

Abstract

The invention provides a non-participating base station handover method, a device and a system.A terminal sends a non-participating base station handover request to a participating base station through a preset position when moving to a base station range called by a non-participating terminal in a calling process, so that the participating base station sends an activation notification to the non-participating base station of the same communication system to enable the non-participating base station to be in an activation state; selecting a non-participating base station with the field intensity value not less than a second handover threshold value from the detected field intensity values of the channels of the non-participating base stations as a target non-participating base station; sending a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to send a call access request to the target non-participating base station, and receiving a channel number and a time slot number fed back by the target non-participating base station; and switching channels based on the received channel numbers, and carrying out the voice call on the time slot indicated by the time slot number transmitted by the participating base station. The invention can be switched to the non-participating base station to continue the voice call, thereby ensuring the quality of the call.

Description

Non-participating base station handover method, device and system

Technical Field

The present invention relates to the field of private network communications technologies, and in particular, to a non-participating base station handover method, device, and system.

Background

In a narrowband communication intercom system, a terminal moves back and forth in a calling process (a voice transmitting process, a voice receiving process or a call maintaining stage), so that a signal of a current base station cannot be stably received, namely, the field intensity value of a channel of the current base station is weakened, and the call quality is influenced. In order to ensure that a terminal can keep smooth conversation at any time, under the conditions that the field intensity value of the channel of the current base station is weakened and other base stations meeting the switching condition exist, the system automatically switches to the base station meeting the switching condition to continue conversation, wherein under the condition that the field intensity value of the channel of the base station is greater than a preset threshold value, the base station is determined to be the base station meeting the switching condition. The narrowband communication interphone system comprises a narrowband cluster system, a conventional system, an Extended Pseudo Trunk (XPT) communication system and other communication systems.

The existing XPT system only realizes the cross-zone of the participating base station, namely, only when the moving range of the terminal is in the range of the base station participating in the call of the terminal, the terminal can be switched to other base stations meeting the switching condition to continue the conversation. If the terminal moves to the range of the base station which does not participate in the calling of the terminal in the calling process, the terminal cannot be switched to the non-participating base station to continue the conversation and can only continue the conversation based on the current base station, so that the conversation quality is poor.

Disclosure of Invention

In view of the above, the present invention provides a method, an apparatus, and a system for handover of a non-participating base station, so as to achieve the purpose of enabling a terminal to switch to the non-participating base station to continue a call when the terminal moves to a range of the base station that is not participating in a call of the terminal during a call, thereby ensuring the quality of the call.

The invention discloses a non-participated base station handover method in a first aspect, which is applied to a terminal and comprises the following steps:

in the process of voice calling, if the field intensity value of a channel of a participating base station is detected to be smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is detected to be smaller than a first handover threshold value, sending a non-participating base station handover request to the participating base station through a preset position, and enabling the participating base station to send an activation notification to the non-participating base station in the same communication system based on the non-participating base station handover request so as to enable the non-participating base station to be in an activation state;

detecting the field intensity value of the channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second handover threshold value as a target non-participating base station;

sending a target non-participating base station voice access request to the participating base station through the preset position, enabling the participating base station to send a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station;

and when the channel number and the time slot number of the target non-participating base station, which are sent by the participating base station, are received, switching channels based on the channel number of the target non-participating base station, and carrying out the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call comprises voice call transmission and voice call receiving.

The second aspect of the present invention discloses a non-participating base station handover method, which is applied to a participating base station, and comprises:

when a non-participating base station handover request sent by a terminal is received, sending an activation notification to a non-participating base station in the same communication system based on the non-participating base station handover request, so that the non-participating base station is in an activation state;

when a target non-participating base station voice access request sent by the terminal is received, sending a call joining request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station;

and sending the channel number and the time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station and carries out the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call comprises voice call transmission and voice call receiving.

A third aspect of the present invention is a handover apparatus of a non-participating base station, applied to a terminal, the apparatus comprising:

a first sending unit, configured to, in a voice call process, send a non-participating base station handover request to a participating base station through a preset location if it is detected that a field intensity value of a channel of the participating base station is smaller than a preset threshold and field intensity values of channels of other participating base stations participating in the voice call of the terminal are smaller than a first handover threshold, so that the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the non-participating base station handover request, and the non-participating base stations are in an activated state;

the detection unit is used for detecting the field intensity value of the channel of the non-participating base station and selecting the non-participating base station of which the field intensity value is not less than a second cross-area threshold value as a target non-participating base station;

a second sending unit, configured to send a target non-participating base station voice access request to the participating base station through the preset position, so that the participating base station sends a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receives a channel number and a time slot number fed back by the target non-participating base station;

and the switching unit is used for switching channels based on the channel number of the target non-participating base station and carrying out the voice call on the time slot indicated by the time slot number of the target non-participating base station when the channel number and the time slot number of the target non-participating base station, which are sent by the participating base station, are received, wherein the voice call comprises a voice call transmitting and a voice call receiving.

A fourth aspect of the present invention discloses a handover apparatus of a non-participating base station, which is applied to a participating base station, the apparatus comprising:

an activation notification sending unit, configured to send, when receiving a non-participating base station handover request sent by a terminal, an activation notification to a non-participating base station in the same communication system based on the non-participating base station handover request, so that the non-participating base station is in an activated state;

a call joining request sending unit, configured to send a call joining request to a target non-participating base station based on a target non-participating base station voice access request sent by the terminal when receiving the target non-participating base station voice access request, and receive a channel number and a time slot number fed back by the target non-participating base station;

a third sending unit, configured to send the channel number and the timeslot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station, and performs the voice call at a timeslot indicated by the timeslot number of the target non-participating base station, where the voice call includes transmitting a voice call and receiving a voice call.

The fifth aspect of the invention discloses a handover system of a non-participating base station, which comprises a terminal, a participating base station and a non-participating base station;

the terminal is used for sending a non-participating base station handover request to the participating base station based on a preset position if the field intensity value of the channel of the participating base station is detected to be smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the calling of the terminal is detected to be smaller than a first handover threshold value; detecting the field intensity value of the channel of each non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second handover threshold value as a target non-participating base station; sending a target non-participating base station voice access request to the participating base station through the preset position; when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching channels based on the channel number of the target non-participating base station, and carrying out the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein if the terminal is a transmitting terminal, the voice call is carried out, and if the terminal is a receiving terminal, the voice call is carried out;

the participating base station is used for sending an activation notification to non-participating base stations in the same communication system based on the non-participating base station handover request when receiving the non-participating base station handover request sent by the terminal; when a target non-participating base station voice access request sent by the terminal is received, sending a call joining request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; sending the channel number and the time slot number of the target non-participating base station to the transmitting terminal or the receiving terminal;

the non-participating base station is used for converting the current state of all channels in the non-participating base station into an active state when receiving a non-participating base station handover request sent by the participating base station, joining the call of the terminal based on the call joining request and a target channel when receiving the call joining request sent by the participating base station as a determined target non-participating base station, and feeding back the channel number and the time slot number of the target channel to the participating base station, wherein the target channel is any idle channel in all channels of the target non-participating base station.

The invention provides a non-participating base station handover method, a device and a system, wherein in the process of voice calling, when a terminal detects that the field intensity value of a channel participating in a base station is smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is smaller than a first handover threshold value, a non-participating base station handover request is sent to the participating base station through a preset position; the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations are in an activated state, the terminal detects the field intensity value of a channel of the non-participating base stations in the activated state, and selects the non-participating base stations with the field intensity value not less than a second handover threshold value as target non-participating base stations; after determining the target non-participating base station, the terminal sends a target non-participating base station voice access request to the participating base station through a preset position; the participating base station sends a call access request to the target non-participating base station based on the received target non-participating base station voice access request, receives the channel number and the time slot number fed back by the target non-participating base station, and sends the received channel number and the received time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station after receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, and performs the voice call on the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that the terminal can be switched to the non-participating base station to continue the voice call when moving to the base station range of the non-participating base station in the call of the terminal in the call process, and further ensuring the quality of the voice call.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a flowchart illustrating a non-participating base station handover method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating another non-participating base station handover method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating another non-participating base station handover method according to an embodiment of the present invention;

fig. 4 is a diagram illustrating an exemplary structure of a non-participating base station handover system according to an embodiment of the present invention;

fig. 5 is a block diagram of a non-participating base station handoff device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another non-participating base station handoff device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the prior art, because the XPT communication system has no control channel, the channel of the base station in the XPT communication system is in an intermittently activated state, and in the calling process of the terminal, if the current state of the channel of the non-participating base station in the XPT communication system is in an inactivated state, the terminal cannot detect the field intensity value of the channel of the non-participating base station in the XPT communication system, so that the switching to the non-participating base station for conversation cannot be realized.

Therefore, the invention provides a non-participating base station handover method, a non-participating base station handover device and a non-participating base station handover system, which can realize that the terminal is switched to the non-participating base station to continue conversation when moving to the range of the non-participating base station in the calling process under the condition of not interrupting the current voice calling of the terminal, thereby not only ensuring the conversation quality, but also avoiding the problem of word drop in the voice calling process.

And, the technical scheme that the terminal sends the non-participating base station handover request to the participating base station through the preset position when detecting that the field intensity value of the channel of the participating base station is smaller than the preset threshold and the field intensity value of the channel of each other participating base station participating in the voice call of the terminal is smaller than the first handover threshold, so that the participating base station sends an activation notification to the non-participating base station in the same communication system based on the non-participating base station handover request, and the non-participating base station is in an activation state for performing corresponding subsequent processing, thereby realizing the switching to the non-participating base station to continue the call.

Referring to fig. 1, a schematic flow chart of a non-participating base station handover method provided in an embodiment of the present invention is shown, where the non-participating base station handover method specifically includes the following steps:

s101: in the process of voice calling, if the terminal detects that the field intensity value of the channel of the participating base station is smaller than the preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is smaller than the first handover threshold value, the terminal sends a non-participating base station handover request to the participating base station through the preset position.

In the process of specifically executing the step S101, a first handover threshold is preset, and in the process of performing a voice call by the terminal, the terminal determines whether the current call is stable by detecting a field intensity value of a channel of a participating base station currently performing a voice call with the terminal; and under the condition that the terminal detects that the field intensity value of the participating base station which is currently in voice call with the terminal is weakened and is smaller than a preset threshold value, determining that the current call of the terminal is unstable, and further detecting whether the field intensity value of each other participating base station which participates in the voice call of the terminal is smaller than a first cross-zone threshold value.

And under the condition that the field intensity value of the channel of each other participating base station participating in the voice call of the terminal is smaller than the first handover threshold value, determining that each other participating base station participating in the voice call of the terminal does not meet the switching condition, and sending a non-participating base station handover request to the participating base station through a preset position.

In this embodiment of the present application, the preset location may be an embedded LC location, an uplink idle channel, or an uplink reserved designated location, and a manner in which the terminal sends a non-participating base station handover request to a participating base station currently performing a voice call with the terminal through the preset location may be: the terminal sends a non-participating base station handover request to a participating base station currently in voice call with the terminal through an embedded LC position, an uplink idle channel or an uplink reserved designated position.

The above is only a preferred way of setting the preset position provided by the embodiment of the present invention, and the specific setting way of the preset position may be set according to the requirement, which is not limited in the embodiment of the present invention.

S102: the participating base stations send activation notifications to non-participating base stations within the same communication system based on non-participating base station handoff requests.

In the process of specifically executing step S102, after receiving the non-participating base station handover request sent by the terminal, the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations in the same system are in an activated state.

It should be noted that the non-participating base station herein refers to all non-participating base stations in the same communication system as the participating base station.

S103: the non-participating base station converts the current state of all channels in the non-participating base station to an active state based on the activation notification.

In the process of specifically executing step S103, after receiving the activation notification sent by the participating base station, each non-participating base station converts the current states of all channels in the non-participating base station into an active state based on the received activation notification for each non-participating base station, so that the subsequent terminal can detect the field strength value of each channel in the non-participating base station.

S104: and the terminal detects the field intensity value of the channel of the non-participating base station and selects the non-participating base station of which the field intensity value is not less than the second cross-area threshold value as the target non-participating base station.

In the process of specifically executing step S104, a second handover threshold is preset, and when the states of all channels in each non-participating base station in the same communication system are active, the terminal detects the field strength value of the channel of each non-participating base station, compares the detected field strength value of each channel in each non-participating base station with the second handover threshold, and selects a non-participating base station whose field strength value is not less than the second handover threshold as a target non-participating base station.

It should be noted that all channels of the same non-participating base station use the same set of antennas, and the field strength values of all channels of the same non-participating base station are the same, so that only one channel needs to be detected by one non-participating base station.

The preset first handoff threshold and the preset second handoff threshold may be the same or different, and may be set according to requirements, which is not limited in the embodiments of the present application.

Further, in this embodiment of the present application, in a case that states of all channels in each non-participating base station in the same communication system are active states, the terminal may further sequentially detect a field strength value of a certain channel in each non-participating base station, and when a channel of the non-participating base station whose field strength value is greater than the second handover threshold is detected, determine the non-participating base station corresponding to the channel greater than the second handover threshold as the target non-participating base station.

In the embodiment of the present application, when a terminal sends a voice frame to a participating base station or receives a voice frame sent by a participating base station based on any time slot, for convenience of distinguishing, a time slot used when the terminal sends the voice frame to the participating base station or receives the voice frame sent by the participating base station is referred to as a first time slot. The way for the terminal to detect the field strength value of the channel of each non-participating base station may be: and the terminal detects the field intensity value of each channel of the non-participating base station through the adjacent time slot of the first time slot.

S105: and the terminal sends a target non-participating base station voice access request to the participating base station through a preset position.

In the process of specifically executing step S105, after the terminal selects the target non-participating base station from the non-participating base stations of the same communication system, the target non-participating base station sends the target non-participating base station voice access request to the participating base station through the preset location, so that the participating base station sends the call join request to the target non-participating base station based on the target non-participating base station voice access request, and the target non-participating base station adds the call of the terminal based on the received call join request.

In this embodiment of the present application, the preset position may be an embedded LC position, an uplink idle channel, or an uplink reserved designated position, and the manner in which the terminal sends the target non-participating base station voice access request through the preset position participating base station may be: and the terminal sends a target non-participating base station voice access request to a participating base station which is currently in voice call with the terminal through an embedded LC position, an uplink idle channel or an uplink reserved designated position.

The above is only a preferred way of setting the preset position provided by the embodiment of the present invention, and the inventor can set the preset position according to his own needs, and the embodiment of the present invention is not limited thereto.

S106: and the participating base station sends a call joining request to the target non-participating base station based on the target non-participating base station voice access request.

In the process of specifically executing step S106, after receiving the target non-participating base station voice access request sent by the terminal, the participating base station sends a call join request to the target non-participating base station based on the received target non-participating base station voice access request, so that the target non-participating base station joins the call of the terminal based on the call join request, and feeds back the channel number and the timeslot number of the target channel to the participating base station.

S107: and receiving a call joining request sent by the participating base station as the determined target non-participating base station, and joining the call of the terminal based on the call joining request.

In the process of specifically executing step S107, after the target non-participating base station receives the call join request sent by the participating base station, joins the call of the terminal based on the received call join request and the target channel join request, and feeds back the channel number and the slot number of the target channel to the participating base station, where the channel number and the slot number of the target channel are the channel number and the slot number of the target non-participating base station.

S108: and the non-participating base station as the determined target feeds back the channel number and the time slot number of the non-participating base station to the participating base station.

In the process of specifically executing step S108, the target non-participating base station feeds back the channel number and the slot number of the target channel to the participating base station after receiving the call join request and the call of the target channel terminal, and at this time, the target non-participating base station feeds back the channel number and the slot number of the target channel to the participating base station as the channel number and the slot number of the target non-participating base station.

S109: the participating base station sends the channel number and slot number of the target non-participating base station to the terminal.

In the embodiment of the application, the participating base station transmits the channel number and the time slot number of the target non-participating base station to the terminal by using the redefined RC reverse signaling frame.

Specifically, the cyclic redundancy check CRC position of 7 bits of the redefined RC reverse signaling frame carries the channel number and the slot number of the target non-participating base station. The content of the conventional RC reverse signaling frame is shown in table 1, and the content of the redefined RC reverse signaling frame, that is, the content of the preset RC reverse signaling frame is shown in table 2.

Table 1:

table 2:

in the process of specifically executing step S109, after the participating base station receives the channel number and the time slot number sent by the target non-participating base station, the received channel number and time slot number of the target non-participating base station may be filled to a corresponding position in a preset RC reverse signaling frame to obtain a target RC reverse signaling frame, and at this time, the target RC reverse signaling frame carries the channel number and the time slot number of the target non-participating base station; and the participating base station sends the obtained target RC reverse signaling frame to the terminal.

In this embodiment of the present application, a participating base station receives a voice frame sent by a terminal based on any time slot, or sends a voice frame to a terminal based on any time slot, for convenience of distinguishing, a time slot used when the participating base station receives the voice frame sent by the terminal, or sends the voice frame to the terminal is called a second time slot, and a manner for the participating base station to send an obtained target RC reverse signaling frame to the terminal may be: and the participating base station sends a target RC reverse signaling frame to the terminal based on the adjacent time slot of the second time slot.

S110: and the terminal switches channels based on the channel number of the target non-participating base station and carries out the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call comprises voice call transmitting and voice call receiving.

In the process of specifically executing step S110, when receiving the target RC reverse signaling frame sent by the participating base station, the terminal parses the received target RC reverse signaling frame to obtain the channel number and the time slot number of the target non-participating base station, switches the channel based on the channel number of the target non-participating base station, and performs the voice call on the time slot indicated by the time slot number of the target non-participating base station.

In an embodiment of the present application, the voice call includes transmitting a voice call and receiving a voice call. When the terminal is a transmitting terminal, the voice call is a transmitting voice call, and the terminal can switch channels based on the channel number of the target non-participating base station obtained by analyzing the target RC reverse signaling frame and perform the transmitting voice call on the time slot indicated by the time slot number of the target non-participating base station. When the terminal is a receiving terminal, the voice call is a received voice call, and the terminal may switch channels based on the channel number of the target non-participating base station obtained by analyzing the target RC reverse signaling frame, and perform the current received voice call on the time slot indicated by the time slot number of the target non-participating base station.

The invention provides a non-participating base station handover method, in the process of voice calling, when a terminal detects that the field intensity value of a channel participating in a base station is smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is smaller than a first handover threshold value, a non-participating base station handover request is sent to the participating base station through a preset position; the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations are in an activated state, the terminal detects the field intensity value of a channel of the non-participating base stations in the activated state, and selects the non-participating base stations with the field intensity value not less than a second handover threshold value as target non-participating base stations; after determining the target non-participating base station, the terminal sends a target non-participating base station voice access request to the participating base station through a preset position; the participating base station sends a call access request to the target non-participating base station based on the received target non-participating base station voice access request, receives the channel number and the time slot number fed back by the target non-participating base station, and sends the received channel number and the received time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station after receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, and performs the voice call on the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that the terminal can be switched to the non-participating base station to continue the voice call when moving to the base station range of the non-participating base station in the call during the call process, and further ensuring the quality of the voice call.

The non-participating base station handoff method provided by the embodiment of the present invention is described below from the perspective of the transmitting terminal and the receiving terminal, respectively.

Referring to fig. 2, a schematic flow chart of a non-participating base station handover method provided in an embodiment of the present invention is shown, where the non-participating base station handover method is applied to a transmitting terminal, and specifically includes the following steps:

s201: in the process of voice calling, if the field intensity value of the channel of the participating base station is detected to be smaller than the preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the transmitting terminal is detected to be smaller than the first handover threshold value, a non-participating base station handover request is sent to the participating base station through the preset position.

In the process of specifically executing step S201, in the process of making a voice call by a transmitting terminal, the transmitting terminal determines whether the current call is stable by detecting the field strength value of the channel participating in the base station; and when the transmitting terminal detects that the field intensity value of the participating base station is weakened and is smaller than a preset threshold value, determining that the current conversation of the transmitting terminal is unstable, and further detecting whether the field intensity value of each other participating base station participating in the voice call transmitted by the transmitting terminal is smaller than a first cross-area threshold value.

And under the condition that the field intensity value of the channel of each other participating base station participating in the voice call transmitted by the transmitting terminal is smaller than the first handover threshold value, determining that each other participating base station participating in the voice call transmitted by the transmitting terminal does not meet the switching condition, and sending a non-participating base station handover request to the participating base stations through a preset position. After receiving the non-participating base station handover request sent by the terminal, the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations in the same system are in an activated state.

In this embodiment of the present application, the preset position may be an embedded LC position, an uplink idle channel, or an uplink reserved designated position, and the manner in which the transmitting terminal sends the non-participating base station handover request to the participating base station through the preset position may be: and the transmitting terminal sends a non-participating base station handover request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

The above is only a preferred way of setting the preset position provided by the embodiment of the present invention, and the inventor can set the preset position according to his own needs, which is not limited in the embodiment of the present invention.

S202: and detecting the field intensity value of the channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than the second cross-area threshold value as the target non-participating base station.

In the process of specifically executing step S202, when the states of all channels in each non-participating base station in the same communication system are active, the transmitting terminal detects the field strength value of each channel in each non-participating base station based on the adjacent time slot of the first time slot, compares the detected field strength value of each channel of each non-participating base station with the second handover threshold, and selects the non-participating base station whose field strength value is not less than the second handover threshold as the target non-participating base station. The first time slot is a time slot used when the transmitting terminal sends a voice frame to the participating base station or receives the voice frame sent by the participating base station.

S203: and sending a target non-participating base station voice access request to the participating base station through a preset position.

In the process of specifically executing step S203, after the transmitting terminal selects a target non-participating base station from the non-participating base stations of the same communication system, a target non-participating base station voice access request is sent to the participating base station through a preset position, so that the participating base station sends a call join request to the target non-participating base station based on the target non-participating base station voice access request, the target non-participating base station accesses the transmitting voice call of the transmitting terminal based on the received call join request, and the channel number and the timeslot number of the target channel are fed back to the participating base station.

In this embodiment of the present application, the preset position may be an embedded LC position, an uplink idle channel, or an uplink reserved designated position, and the manner in which the transmitting terminal sends the target non-participating base station voice access request through the preset position participating base station may be: and the transmitting terminal sends a target non-participating base station voice access request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

S204: when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching the channel based on the channel number of the target non-participating base station, and carrying out the voice call of the transmission at the time slot indicated by the time slot number of the target non-participating base station.

In the process of specifically executing step S204, after the participating base station receives the channel number and the time slot number sent by the target non-participating base station, the received channel number and time slot number of the target non-participating base station may be filled to a corresponding position in the preset RC reverse signaling frame to obtain a target RC reverse signaling frame; and transmitting the target RC reverse signaling frame to the terminal based on the adjacent time slot of the second time slot, or transmitting the target RC reverse signaling frame to the terminal based on the embedded LC position of the second time slot. The second time slot is a time slot used when the participating base station receives a voice frame or sends the voice frame.

When receiving a target RC reverse signaling frame sent by a participating base station, a transmitting terminal analyzes the received target RC reverse signaling frame to obtain a channel number and a time slot number of a target non-participating base station, switches channels based on the channel number of the target non-participating base station, and carries out the voice call transmission at the time slot indicated by the time slot number of the target non-participating base station.

The invention provides a non-participating base station handover method, in the process of voice calling, a transmitting terminal detects that the field intensity value of a channel participating in a base station is smaller than a preset threshold value, and the field intensity value of the channel of each other participating base station participating in the voice calling of the transmitting terminal is smaller than a first handover threshold value, and sends a non-participating base station handover request to the participating base station through a preset position, so that the participating base station sends an activation notice to the non-participating base station in the same communication system based on the non-participating base station handover request, and the non-participating base station is in an activation state; detecting the field intensity value of a channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second handover threshold value as a target non-participating base station; sending a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to send a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching the channel based on the channel number of the target non-participating base station, and carrying out the voice call transmission in the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that the transmitting terminal can be switched to the non-participating base station to continue the voice call transmission when moving to the base station range of the call of the non-participating base station in the calling process, and further ensuring the quality of the voice call.

Referring to fig. 3, a schematic flow chart of a non-participating base station handover method provided in an embodiment of the present invention is shown, where the non-participating base station handover method is applied to a receiving terminal, and specifically includes the following steps:

s301: in the process of voice calling, if the field intensity value of the channel of the participating base station is detected to be smaller than the preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the receiving terminal is detected to be smaller than the first handover threshold value, a non-participating base station handover request is sent to the participating base station through the preset position.

In the process of specifically executing step S301, in the process of receiving a voice call by the receiving terminal, the receiving terminal determines whether the current call is stable by detecting the field strength value of the channel participating in the base station; and under the condition that the receiving terminal detects that the field intensity value of the participating base station is weakened and is smaller than a preset threshold value, determining that the current conversation of the receiving terminal is unstable, and further detecting whether the field intensity value of each other participating base station participating in the receiving voice call of the receiving terminal is smaller than a first cross-area threshold value.

And under the condition that the field intensity value of the channel of each other participating base station participating in the voice call receiving of the receiving terminal is smaller than a first handover threshold value, determining that each other participating base station participating in the voice call transmitting of the receiving terminal does not meet the switching condition, and sending a non-participating base station handover request to the participating base station through a preset position. After receiving the non-participating base station handover request sent by the terminal, the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations in the same system are in an activated state.

In the embodiment of the present application, the setting manner of the preset position is the same as the setting manner of the preset position in step S201 in fig. 2 disclosed in the present invention, and reference may be made to the corresponding content in fig. 2 disclosed in the present invention, and details are not repeated here.

S302: and detecting the field intensity value of the channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than the second cross-area threshold value as the target non-participating base station.

In the process of specifically executing step S302, when the channel state of each non-participating base station in the same communication system is an active state, the receiving terminal detects the field strength value of the channel of each non-participating base station based on the adjacent time slot of the first time slot, compares the detected field strength value of the channel of each non-participating base station with the second handover threshold, and selects the non-participating base station whose field strength value is not less than the second handover threshold as the target non-participating base station. The first time slot is a time slot used when the receiving terminal sends a voice frame to the participating base station or receives the voice frame sent by the participating base station.

S303: and sending a target non-participating base station voice access request to the participating base station through a preset position.

In the process of specifically executing step S303, after the receiving terminal selects the target non-participating base station from the non-participating base stations of the same communication system, the receiving terminal sends a target non-participating base station voice access request to the participating base station through the preset location, so that the participating base station sends a call join request to the target non-participating base station based on the target non-participating base station voice access request, the target non-participating base station joins the received voice call of the receiving terminal based on the received call join request, and the channel number and the slot number of the target channel are fed back to the participating base station.

In the embodiment of the present application, the setting manner of the preset position is the same as the setting manner of the preset position in step S203 in fig. 2 disclosed in the present invention, and reference may be made to the corresponding content in fig. 2 disclosed in the present invention, and details are not repeated here.

S304: when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching the channel based on the channel number of the target non-participating base station, and carrying out the voice call receiving at this time on the time slot indicated by the time slot number of the target non-participating base station.

In the process of specifically executing step S304, after the participating base station receives the channel number and the time slot number sent by the target non-participating base station, the received channel number and time slot number of the target non-participating base station may be filled to a corresponding position in the preset RC reverse signaling frame to obtain a target RC reverse signaling frame; and transmits a target RC reverse signaling frame to the terminal based on the adjacent slot of the second slot. And the second time slot is a time slot used when the base station participates in receiving the voice frame or sending the voice frame.

When receiving a target RC reverse signaling frame sent by a participating base station, a receiving terminal analyzes the received target RC reverse signaling frame to obtain a channel number and a time slot number of a target non-participating base station, switches channels based on the channel number of the target non-participating base station, and carries out the voice receiving call on a time slot indicated by the time slot number of the target non-participating base station.

The invention provides a non-participating base station handover method, in the process of voice calling, a receiving terminal detects that the field intensity value of a channel participating in a base station is smaller than a preset threshold value, and the field intensity value of the channel of each other participating base station participating in the voice calling of the receiving terminal is smaller than a second handover threshold value, and sends a non-participating base station handover request to the participating base station through a preset position, so that the participating base station sends an activation notice to the non-participating base station in the same communication system based on the non-participating base station handover request, and the non-participating base station is in an activation state; detecting the field intensity value of a channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second handover threshold value as a target non-participating base station; sending a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to send a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching the channel based on the channel number of the target non-participating base station, and carrying out the received voice call in the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that when the receiving terminal moves to the range of the base station which is not involved in the call of the receiving terminal in the call process, the receiving terminal can be switched to the non-participating base station to continue to carry out the received voice call, and further ensuring the quality of the voice call.

In order to better understand the above content, the following takes an XPT communication system as an example, and illustrates a non-participating base station handover method provided in the embodiment of the present invention from the perspective of a receiving terminal.

Referring to fig. 4, the XTP communication system includes a terminal R1, a terminal R2, a terminal R3, a base station 1, a base station 2, and a base station 3, wherein a base station Site1 has only one channel S1-1, and a terminal R3 stays on the channel S1-1 of the base station Site 1; the base station Site2 has two channels, channel S2-1 and channel S2-2, and terminal R1 and terminal R2 stay on channel S2-2 of base station Site 2; the base station Site3 has only one channel S3-1, and no terminal stays on the channel S3-1 of the base station Site 3.

Terminal R2 receives the voice call on channel S2-2 of base station 2, and can determine that base station Site2 is a participating base station, each other participating base station participating in receiving the voice call of terminal R2 is base station Site1, and base station Site3 is a non-participating base station in the same XPT communication system.

In the process of receiving a voice call, the receiving terminal R2 detects that the field strength value of the channel S2-2 of the participating base station (base station Site2) becomes weak and is smaller than a preset threshold value due to the movement of the position, detects the field strength values of other participating base stations (base station Site1) based on the adjacent time slot of the first time slot on the channel S2-2, and sends a non-participating base station handover request to the participating base station (base station Site2) through the uplink reservation designated position if the field strength values of the other participating base stations (base station Site1) are smaller than a second handover threshold value.

After receiving the non-participating base station handover request sent by the receiving terminal R2, the participating base station (base station Site2) sends an activation notification to the non-participating base station (base station Site3) in the same XPT communication system based on the received non-participating base station handover request; when the non-participating base station (base station Site3) receives the activation notification transmitted by the participating base station (base station Site2), the current state of the channel (S3-1) is converted into an activated state.

The receiving terminal R2 is switched to a channel (S3-1) of a non-participating base station (base station Site3) on the basis of an adjacent time slot of a first time slot on a channel S2-2 to detect a field intensity value of the channel (S3-1) of the non-participating base station (base station Site3), and judges whether the field intensity value of the channel (S3-1) of the non-participating base station (base station Site3) is greater than a second handover threshold value, if so, the non-participating base station (base station Site3) is determined to be a target non-participating base station, and the channel (S3-1) is a target channel; and sending a target non-participating base station voice access request to a participating base station (base station Site2) based on the uplink reservation specified position.

After receiving the target non-participating base station voice access request, the participating base station (base station Site2) sends a call joining request to the target non-participating base station (base station Site3) based on the received target non-participating base station voice access request; the target non-participating base station (base station Site3) joins the received voice call of the receiving terminal R2 based on the received call join request and the target channel, and feeds back the channel number and the slot number of the target channel to the participating base station (base station Site 2). At this time, the channel number and the slot number of the target channel are the target non-participating base station (the slot number of the channel number of the base station Site 3).

The participating base station (base station Site2) presets the received channel number and time slot number filling value fed back by the target non-participating base station (base station Site3) at the corresponding position of the RC reverse signaling frame to obtain the target RC reverse signaling frame; the target RC reverse signaling frame is transmitted to the receiving terminal R2 based on the adjacent slot to the second slot on the channel S2-2.

After receiving a target RC reverse signaling frame sent by a participating base station (base station Site2), a receiving terminal R2 analyzes the target RC reverse signaling frame to obtain a channel number and a time slot number of a target non-participating base station (base station Site 3); and switching channels based on the channel number of the target non-participating base station (base station Site3), and carrying out the voice call receiving at the time slot indicated by the time slot number of the target non-participating base station (base station Site 3).

Corresponding to the above-mentioned non-participating base station handover method disclosed in the embodiment of the present invention, as shown in fig. 5, an embodiment of the present invention further provides a non-participating base station handover apparatus, where the non-participating base station handover apparatus is applied to a terminal, and the non-participating base station handover apparatus includes:

a first sending unit 51, configured to, in a voice call process, send a non-participating base station handover request to a participating base station through a preset location if it is detected that a field strength value of a channel of the participating base station is smaller than a preset threshold and field strength values of channels of other participating base stations participating in the voice call of a terminal are smaller than a first handover threshold, so that the participating base station sends an activation notification to the non-participating base station in the same communication system based on the non-participating base station handover request, and the non-participating base station is in an activated state;

the detection unit 52 is configured to detect a field strength value of a channel of a non-participating base station, and select the non-participating base station whose field strength value is not less than the second handover threshold value as a target non-participating base station;

a second sending unit 53, configured to send a target non-participating base station voice access request to a participating base station through a preset position, so that the participating base station sends a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receives a channel number and a time slot number fed back by the target non-participating base station;

and a switching unit 54, configured to switch a channel based on the channel number of the target non-participating base station when receiving the channel number and the timeslot number of the target non-participating base station sent by the participating base station, and perform the voice call on a timeslot indicated by the timeslot number of the target non-participating base station, where the voice call includes transmitting a voice call and receiving a voice call.

The invention provides a non-participating base station handover switching device, which is applied to a terminal, wherein in the process of voice calling, the terminal sends a non-participating base station handover request to a participating base station through a preset position when detecting that the field intensity value of a channel of the participating base station is smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is smaller than a first handover threshold value, so that the participating base station sends an activation notice to the non-participating base station in the same communication system based on the non-participating base station handover request, and the non-participating base station is in an activation state; detecting the field intensity value of a channel of the non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second handover threshold value as a target non-participating base station; sending a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to send a call access request to the target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; when receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, switching the channel based on the channel number of the target non-participating base station, and carrying out voice call in the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that when the terminal moves to the range of the base station which does not participate in the call of the terminal in the call process, the terminal can be switched to the non-participating base station to continue the voice call, and the purpose of ensuring the quality of the voice call is achieved.

In the embodiment of the application, the preset position is an embedded LC position, an uplink idle channel or an uplink reserved specified position;

the first sending unit is also used for sending a non-participating base station handover request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position;

the second sending unit is also used for sending the target non-participating base station voice access request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

In the embodiment of the present application, preferably, the detection unit includes:

a detection subunit, configured to detect a field strength value of a channel of a non-participating base station based on an adjacent time slot of a first time slot, where the first time slot is a time slot used when a terminal sends a voice frame to the participating base station, or a time slot used when the terminal receives the voice frame sent by the participating base station;

and the selecting unit is used for comparing the detected field intensity value of the channel of the non-participating base station with the second cross-area threshold value and selecting the non-participating base station with the field intensity value not less than the second cross-area threshold value as the target non-participating base station.

In this embodiment, preferably, the switching unit includes:

the system comprises an analysis unit, a base station and a control unit, wherein the analysis unit is used for analyzing a target RC reverse signaling frame to obtain a channel number and a time slot number of a target non-participating base station when receiving the target RC reverse signaling frame sent by the participating base station, and the target RC reverse signaling frame is generated based on a preset RC reverse signaling frame and the channel number and the time slot number of the target non-participating base station;

and the switching subunit is used for switching channels based on the channel number of the target non-participating base station and carrying out the voice call at the time slot indicated by the time slot number of the target non-participating base station.

Corresponding to the above-mentioned non-participating base station handover method disclosed in the embodiment of the present invention, as shown in fig. 6, an embodiment of the present invention further provides a non-participating base station handover apparatus, where the non-participating base station handover apparatus is applied to a participating base station, and the non-participating base station handover apparatus includes:

an activation notification sending unit 61, configured to send an activation notification to a non-participating base station in the same communication system based on a non-participating base station handover request when receiving the non-participating base station handover request sent by the terminal, so that the non-participating base station is in an activated state;

a call joining request sending unit 62, configured to send a call joining request to a target non-participating base station based on a target non-participating base station voice access request when receiving the target non-participating base station voice access request sent by the terminal, and receive a channel number and a time slot number fed back by the target non-participating base station;

a third sending unit 63, configured to send the channel number and the timeslot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station, and performs the voice call in the timeslot indicated by the timeslot number of the target non-participating base station, where the voice call includes transmitting a voice call and receiving a voice call.

The invention provides a non-participating base station handover switching device, which is applied to a participating base station, wherein when a terminal sends a non-participating base station handover request, the participating base station sends an activation notification to the non-participating base station in the same communication system based on the non-participating base station handover request so as to enable the non-participating base station to be in an activation state; when receiving a target non-participating base station voice access request sent by a terminal, sending a call joining request to a target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; and sending the received channel number and time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station and performs the voice call at the time slot indicated by the time slot number of the target non-participating base station, thereby realizing that the terminal can be switched to the non-participating base station to continue the voice call when moving to the range of the base station which does not participate in the call of the terminal in the calling process, and further ensuring the quality of the voice call.

In this embodiment, preferably, the third sending unit includes:

and the fourth sending unit is used for sending a target RC reverse signaling frame generated based on a preset RC reverse signaling frame and the channel number and the time slot number of the target non-participating base station to the terminal, enabling the terminal to switch channels based on the channel number of the target non-participating base station carried by the target RC reverse signaling frame, and carrying out the voice call at the time slot indicated by the time slot number of the target non-participating base station carried by the target RC reverse signaling frame.

In this embodiment, preferably, the third sending unit includes:

and a fifth sending unit, configured to send, to the terminal, a channel number and a slot number of the target non-participating base station based on an adjacent slot of a second slot, where the second slot is a slot used when the participating base station receives a voice frame or sends a voice frame.

Further, the non-participating base station switching apparatus provided by the present invention further includes:

and the non-participating base station is used for converting the current states of all channels in the non-participating base station into the activated state based on the activation notification when receiving the activation notification sent by the participating base station.

And when the target non-participating base station is determined, the non-participating base station is used for joining the call of the terminal based on the call joining request and the target channel when receiving the call joining request sent by the participating base station, and feeding back the channel number and the time slot number of the target channel to the non-participating base station, wherein the target channel is any idle channel in all channels of the target non-participating base station.

Corresponding to the above-mentioned non-participating base station handover method disclosed in the embodiments of the present invention, the embodiments of the present invention further provide a non-participating base station handover system, where the non-participating base station handover system includes:

the terminal is used for sending a non-participating base station handover request to the participating base station based on a preset position if the field intensity value of the channel of the participating base station is detected to be smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the calling of the terminal is smaller than a first handover threshold value; detecting the field intensity value of the channel of each non-participating base station, and selecting the non-participating base station of which the field intensity value is not less than a second cross-area threshold value as a target non-participating base station; sending a target non-participating base station voice access request to a participating base station through a preset position; when receiving a channel number and a time slot number of a target non-participating base station sent by a participating base station, switching channels based on the channel number of the target non-participating base station, and carrying out the voice call on a time slot indicated by the time slot number of the target non-participating base station, wherein the voice call is transmitted if a terminal is a transmitting terminal, and the voice call is received if the terminal is a receiving terminal;

the participating base station is used for sending an activation notice to the non-participating base stations in the same communication system based on the non-participating base station handover request when receiving the non-participating base station handover request sent by the terminal; when a target non-participating base station voice access request sent by a terminal is received, sending a call joining request to a determined target non-participating base station based on the target non-participating base station voice access request, and receiving a channel number and a time slot number fed back by the target non-participating base station; sending the channel number and the time slot number of the target non-participating base station to a transmitting terminal or a receiving terminal;

and the non-participating base station is used for converting the current state of all channels in the non-participating base station into an activated state when receiving a non-participating base station handover request sent by the participating base station, joining the call of the terminal based on the call joining request and the target channel when receiving the call joining request sent by the participating base station as a determined target non-participating base station, and feeding back the channel number and the time slot number of the target channel to the participating base station, wherein the target channel is any idle channel in all channels of the target non-participating base station.

The invention provides a cross-zone system of a non-participating base station, which is characterized in that in the process of voice calling, when a terminal detects that the field intensity value of a channel participating in the base station is smaller than a preset threshold value and the field intensity value of the channel of each other participating base station participating in the voice calling of the terminal is smaller than a first cross-zone threshold value, a cross-zone request of the non-participating base station is sent to the participating base station through a preset position; the participating base station sends an activation notification to the non-participating base stations in the same communication system based on the received non-participating base station handover request, so that the non-participating base stations are in an activated state, the terminal detects the field intensity value of a channel of the non-participating base stations in the activated state, and selects the non-participating base stations with the field intensity value not less than a second handover threshold value as target non-participating base stations; after determining the target non-participating base station, the terminal sends a target non-participating base station voice access request to the participating base station through a preset position; the participating base station sends a call access request to the target non-participating base station based on the received target non-participating base station voice access request, receives a channel number and a time slot number fed back by the target non-participating base station, and sends the received channel number and the received time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station after receiving the channel number and the time slot number of the target non-participating base station sent by the participating base station, and performs the voice call on a time slot indicated by the time slot number of the target non-participating base station, thereby realizing that the terminal can be switched to the non-participating base station to continue the voice call when moving to the range of the base station which is not involved in the call of the terminal in the call process, and further ensuring the quality of the voice call.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A non-participating base station handover method, applied to a terminal, the method comprising:

2. The method of claim 1, wherein the preset location is an embedded LC location, an uplink idle channel, or an uplink reserved designated location;

the sending a non-participating base station handover request to the participating base station through a preset location includes:

sending a non-participating base station handover request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reservation designated position;

the sending a target non-participating base station voice access request to the participating base station through the preset position comprises:

and sending a target non-participating base station voice access request to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

3. The method of claim 1, wherein detecting the field strength value of the channel of the non-participating base station and selecting the non-participating base station with the field strength value not less than the second threshold value as the target non-participating base station comprises:

detecting a field intensity value of a channel of a non-participating base station based on an adjacent time slot of a first time slot, wherein the first time slot is a time slot used when the terminal sends a voice frame to the participating base station, or the time slot used when the terminal receives the voice frame sent by the participating base station;

and comparing the detected field intensity value of the channel of the non-participating base station with a second cross-region threshold value, and selecting the non-participating base station with the field intensity value not less than the second cross-region threshold value as a target non-participating base station.

4. The method of claim 1, wherein when receiving the channel number and the timeslot number of the target non-participating base station sent by the participating base station, switching channels based on the channel number of the target non-participating base station and conducting the voice call on a timeslot indicated by the timeslot number of the target non-participating base station comprises:

when a target RC reverse signaling frame sent by the participating base station is received, analyzing the target RC reverse signaling frame to obtain a channel number and a time slot number of the target non-participating base station, wherein the target RC reverse signaling frame is generated based on a preset RC reverse signaling frame and the channel number and the time slot number of the target non-participating base station;

and switching channels based on the channel number of the target non-participating base station, and carrying out the voice call on the time slot indicated by the time slot number of the target non-participating base station.

5. A non-participating base station handoff method, applied to a participating base station, the method comprising:

6. The method according to claim 5, wherein the sending the channel number and the timeslot number of the target non-participating base station to the terminal, enabling the terminal to switch channels based on the channel number of the target non-participating base station, and conducting the voice call at a timeslot indicated by the timeslot number of the target non-participating base station comprises:

and sending a target RC reverse signaling frame generated based on a preset RC reverse signaling frame and the channel number and the time slot number of the target non-participating base station to the terminal, so that the terminal switches channels based on the channel number of the target non-participating base station carried by the target RC reverse signaling frame, and performs the voice call on the time slot indicated by the time slot number of the target non-participating base station carried by the target RC reverse signaling frame.

7. The method of claim 5, wherein the sending the channel number and the slot number of the target non-participating base station to the terminal comprises:

and sending the channel number and the time slot number of the target non-participating base station to the terminal based on the adjacent time slot of a second time slot, wherein the second time slot is the time slot used when the participating base station receives the voice frame or sends the voice frame.

8. The method of claim 5, further comprising:

when the non-participating base station receives an activation notification sent by the participating base station, converting the current states of all channels in the non-participating base station into an activation state based on the activation notification;

when a determined target non-participating base station receives a call joining request sent by the participating base station, joining the call of the terminal based on the call joining request and a target channel, and feeding back a channel number and a time slot number of the target channel to the participating base station, wherein the target channel is any idle channel in all channels of the target non-participating base station.

9. A handover apparatus for a non-participating base station, the apparatus being adapted for use with a terminal, the apparatus comprising:

10. A handover apparatus for a non-participating base station, the apparatus being adapted for use with a participating base station, the apparatus comprising:

11. A system for handoff of a non-participating base station, the system comprising a terminal, a participating base station and a non-participating base station;