CN114828108B

CN114828108B - Non-participating base station handover method, device and system

Info

Publication number: CN114828108B
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: 2023-12-12
Anticipated expiration: 2041-01-28
Also published as: CN114828108A

Abstract

The invention provides a non-participation base station handover method, a device and a system, when a terminal moves to the range of a base station called by a non-participation terminal in the calling process, a non-participation base station handover request is sent to a participation base station through a preset position, so that the participation base station sends an activation notification to the non-participation base station of the same communication system to enable the non-participation base station to be in an activation state; selecting a non-participating base station with a field intensity value not smaller than a second cross-region threshold value from the detected field intensity values of channels of the non-participating base stations as a target non-participating base station; transmitting a target non-participating base station voice access request to the participating base station through a preset position, enabling the participating base station to transmit 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 sent by the participating base station. The invention can switch to the non-participating base station to continue the voice call, thereby ensuring the conversation quality.

Description

Non-participating base station handover method, device and system

Technical Field

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

Background

In a narrowband intercom system, a terminal moves back and forth in a call 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, a field intensity value of a channel of the current base station is weakened, thereby influencing call quality. In order to ensure that a terminal can keep smooth communication at any time, under the condition that the field intensity value of a channel of a current base station is weakened and other base stations meeting the switching condition exist, the system is automatically switched to the base station meeting the switching condition to continue communication, wherein under the condition that the field intensity value of the channel of the base station is larger 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 trunking system, a conventional system, an enhanced virtual trunking (Extended Pseudo Trunk, XPT) communication system and other communication systems.

The existing XPT system only realizes the hand-off of the participating base station, namely, only when the mobile range of the terminal is within 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 call. If 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 cannot be switched to the non-participating base station to continue the call, and can only continue the call based on the current base station, so that the call quality is poor.

Disclosure of Invention

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

The first aspect of the present invention discloses a non-participating base station handover method, applied to a terminal, comprising:

in the voice call process, 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 voice call of the terminal is detected to be smaller than a first handoff threshold value, sending a non-participating base station handoff request to the participating base station through a preset position, 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 handoff request, and enabling 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 with the field intensity value not smaller than a second cross-region threshold value as a target non-participating base station;

transmitting a target non-participating base station voice access request to the participating base station through the preset position, enabling the participating base station to transmit 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing 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 a transmitting voice call and a receiving voice call.

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

when receiving a non-participating base station handover request sent by a terminal, 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 activated state;

when receiving a target non-participating base station voice access request sent by the terminal, 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 performs 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 a transmitting voice call and a receiving voice call.

A third aspect of the present invention provides a handoff apparatus for a non-participating base station, for use in a terminal, the apparatus comprising:

a first sending unit, configured to send a non-participating base station handover request to the 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 a field intensity value of a channel of each other participating base station participating in the voice call of the terminal is smaller than a first handover threshold in the process of the voice call, so that the participating base station sends an activation notification to a 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 is used for detecting the field intensity value of the channel of the non-participating base station and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as a target non-participating base station;

the second sending unit is used for sending 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 numbers of the target non-participating base stations when the channel numbers and the time slot numbers of the target non-participating base stations transmitted by the participating base stations are received, and carrying out the voice call on the time slot indicated by the time slot number of the target non-participating base stations, wherein the voice call comprises a transmitting voice call and a receiving voice call.

A fourth aspect of the present invention discloses a handover apparatus for a non-participating base station, for use in a participating base station, the apparatus comprising:

an activation notification sending unit, 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 a terminal, 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 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;

and the third sending unit is used for 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 performs the voice call on the time slot indicated by the time slot number of the target non-participating base station, and the voice call comprises a transmitting voice call and a receiving voice call.

The fifth aspect of the present invention discloses a handover system of a non-participating base station, the system comprising 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 call 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 with the field intensity value not smaller than the second cross-region 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call is performed if the terminal is a transmitting terminal, and the voice call is performed if the terminal is a receiving terminal;

The participating base station is used for sending an activation notification to a non-participating base station in the same communication system based on the non-participating base station handover request when the non-participating base station handover request sent by the terminal is received; when receiving a target non-participating base station voice access request sent by the terminal, 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; transmitting 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 configured to, when receiving a non-participating base station handover request sent by the participating base station, convert a current state of all channels in the non-participating base station into an active state, and when receiving a call joining request sent by the participating base station as a determined target non-participating base station, join a call of the terminal based on the call joining request and a target channel, and feed back a channel number and a time slot number of the target channel to the participating base station, where the target channel is any idle channel in all channels of the target non-participating base station.

The invention provides a non-participation base station handover method, a device and a system, when a terminal detects that the field intensity value of a channel of a participation base station is smaller than a preset threshold value and the field intensity value of channels of other participation base stations participating in the voice call of the terminal is smaller than a first handover threshold value in the voice call process, a non-participation base station handover request is sent to the participation base station through a preset position; the non-participation base station sends an activation notification to the non-participation base station in the same communication system based on the received non-participation base station handover request, so that the non-participation base station is in an activation state, a terminal detects the field intensity value of a channel of the non-participation base station in the activation state, and the non-participation base station with the field intensity value not smaller than a second handover threshold value is selected as a target non-participation base station; after determining the target non-participating base station, the terminal sends a voice access request of the target non-participating base station to the participating base station through a preset position; the method comprises the steps that a participating base station sends a call access request to a target non-participating base station based on a received voice access request of the target non-participating base station, receives a channel number and a time slot number fed back by the target non-participating base station, and sends the channel number and the time slot number of the target non-participating base station to a terminal, so that the terminal can switch 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 conduct a voice call at the time slot indicated by the time slot number of the target non-participating base station, and therefore the purpose that the terminal can switch to the non-participating base station to continue the voice call at the time when moving to the base station range of the call of the terminal in the call process is achieved, and the quality of the voice call at the time is guaranteed.

Drawings

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

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

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

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

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

fig. 5 is a schematic structural diagram of a non-participating base station handover apparatus according to an embodiment of the present invention;

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

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present disclosure, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the prior art, since the XPT communication system has no control channel, the channel of the base station in the XPT communication system is in an intermittent active state, and if the current state of the channel of the non-participating base station in the XPT communication system is in an inactive state during the call of the terminal, 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 communication cannot be realized.

Therefore, the application provides a non-participating base station handover method, device and system, which can realize that when a terminal moves to the range of a base station which does not participate in the call of the terminal in the call process, the terminal is switched to the non-participating base station to continue the call, thereby not only ensuring the call quality, but also avoiding the problem of word dropping in the voice call process.

In addition, the technical scheme provided by the invention ensures that the non-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 cross-zone request to enable the non-participating base station to be in an activation state so as to perform corresponding subsequent processing when 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 of the voice call of the participating terminal is smaller than the first cross-zone threshold value.

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

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

In the specific execution of step S101, a first handoff threshold is preset, and in the process of making a voice call with a terminal, the terminal judges whether the current call is stable or not by detecting the field intensity value of the channel of the participating base station which is currently making the 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 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 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 handoff threshold value, determining that each other participating base station participating in the voice call of the terminal does not meet the handoff condition, and sending a non-participating base station handoff request to the participating base station through a preset position.

In the 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 a non-participating base station handover request to the participating base station currently performing a voice call with the terminal through the preset position may be: the terminal sends a non-participating base station handover request to the participating base station currently making a voice call with the terminal through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

The foregoing is merely a preferred manner of setting the preset position provided by the embodiment of the present application, and the specific setting manner of the preset position may be set according to the needs, which is not limited by the embodiment of the present application.

S102: the participating base station transmits an activation notification to non-participating base stations within the same communication system based on the non-participating base station handoff request.

In the specific execution of 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 station in the same communication system based on the received non-participating base station handover request, so that the non-participating base station in the same system is in an activated state.

Here, the non-participating base stations refer to all non-participating base stations in the same communication system as the participating base stations.

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

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

S104: the terminal detects the field intensity value of the channel of the non-participating base station, and selects the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as the target non-participating base station.

In the specific execution of step S104, a second handoff threshold is preset, and in the case that the states of all channels in each non-participating base station in the same communication system are active, the terminal detects the field intensity value of the channel of each non-participating base station, compares the detected field intensity value of each channel in each non-participating base station with the second handoff threshold, and selects the non-participating base station with the field intensity value not smaller than the second handoff threshold as the target non-participating base station.

It should be noted that, the same antenna set is used by all channels of the same non-participating base station, and field intensity values of all channels under the same non-participating base station are the same, so that only one channel needs to be detected by one non-participating base station.

It should be noted that the preset first handoff threshold value and the preset second handoff threshold value may be the same or different, and may be set according to the requirement, which is not limited in the embodiment of the present application.

Further, in the embodiment of the present application, under the condition that the 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 detecting a channel of a non-participating base station whose field strength value is greater than the second handover threshold, determine a non-participating base station corresponding to a channel greater than the second handover threshold as a target non-participating base station.

In the embodiment of the present application, when the terminal transmits a voice frame to the participating base station or receives a voice frame transmitted by the participating base station based on any time slot, for convenience of distinction, a time slot used when the terminal transmits a voice frame to the participating base station or receives a voice frame transmitted by the participating base station is referred to as a first time slot. The manner in which the terminal detects the field strength value of the channel of each non-participating base station may be: the terminal detects the field intensity value of the channel of each non-participating base station through the adjacent time slot of the first time slot.

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

In the specific execution of 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 voice access request is sent to the participating base station through the preset position, so that 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, and the target non-participating base station adds the call of the terminal based on the received call joining request.

In the 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 participates in the base station through the preset position to send the voice access request of the target non-participating base station may be: the terminal sends a voice access request of a target non-participating base station to the participating base station currently carrying out voice call with the terminal through the embedded LC position, an uplink idle channel or an uplink reserved designated position.

The foregoing is merely a preferred manner of setting the preset position provided by the embodiment of the present application, and the inventor may set the preset position according to his own needs, which is not limited by the embodiment of the present application.

S106: 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.

In the specific execution of step S106, after receiving the target non-participating base station voice access request sent by the terminal, the participating base station sends a call joining 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 joining request, and feeds back the channel number and the time slot number of the target channel to the participating base station.

S107: the target non-participating base station as a determination receives a call joining request transmitted by the participating base station, and joins a call of the terminal based on the call joining request.

In the specific execution of step S107, after receiving the call joining request sent by the participating base station, the target non-participating base station joins the call of the terminal based on the received call joining request and the target channel joining request, and feeds back the channel number and the time slot number of the target channel to the participating base station, where the channel number and the time slot number of the target channel are the channel number and the time slot number of the target non-participating base station.

S108: the target non-participating base station feeds back its own channel number and slot number to the participating base station as a determination.

In the specific execution of step S108, after receiving the call joining request and the call of the target channel terminal, the target non-participating base station feeds back the channel number and the time slot number of the target channel to the participating base station, where the channel number and the time slot number of the target channel are fed back to the participating base station by the target non-participating base station.

S109: the participating base station transmits the channel number and the 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 7bit cyclic redundancy check CRC position of the redefined RC reverse signaling frame carries the channel number and the slot number of the target non-participating base station. The contents of the conventional RC reverse signaling frame are shown in table 1, and the redefined RC reverse signaling frame, that is, the preset RC reverse signaling frame, are shown in table 2.

Table 1:

table 2:

in the specific execution of step S109, after receiving the channel number and the time slot number sent by the target non-participating base station, the participating base station may fill the received channel number and time slot number of the target non-participating base station to a corresponding position in a preset RC reverse signaling frame to obtain a target RC reverse signaling frame, where the target RC reverse signaling frame carries the channel number and the time slot number of the target non-participating base station; the participating base station sends the obtained target RC reverse signaling frame to the terminal.

In the embodiment of the present application, the participating base station receives the voice frame sent by the terminal based on any time slot, or sends the voice frame to the terminal based on any time slot, in order to facilitate the distinction, the mode that the participating base station receives the voice frame sent by the terminal, or the time slot used when sending the voice frame to the terminal is called the second time slot, and the participating base station sends the obtained target RC reverse signaling frame to the terminal may be: the participating base station transmits a target RC reverse signaling frame to the terminal based on the adjacent time slots of the second time slot.

S110: the terminal switches channels based on the channel number of the target non-participating base station, and makes 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 a transmitting voice call and a receiving voice call.

In the specific execution of step S110, when the terminal receives the target RC reverse signaling frame sent by the participating base station, the terminal analyzes 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 channels 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 application, the voice call includes a transmit voice call and a receive 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 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 receiving 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 receiving voice call on the time slot indicated by the time slot number of the target non-participating base station.

The invention provides a non-participation base station handover method, in the course of voice call, when a terminal detects that the field intensity value of the channel of a participation base station is smaller than a preset threshold value, and the field intensity value of the channel of each other participation base station participating in the voice call of the terminal is smaller than a first handover threshold value, a non-participation base station handover request is sent to the participation base station through a preset position; the non-participation base station sends an activation notification to the non-participation base station in the same communication system based on the received non-participation base station handover request, so that the non-participation base station is in an activation state, a terminal detects the field intensity value of a channel of the non-participation base station in the activation state, and the non-participation base station with the field intensity value not smaller than a second handover threshold value is selected as a target non-participation base station; after determining the target non-participating base station, the terminal sends a voice access request of the target non-participating base station to the participating base station through a preset position; the method comprises the steps that a participating base station sends a call access request to a target non-participating base station based on a received voice access request of the target non-participating base station, receives a channel number and a time slot number fed back by the target non-participating base station, and sends the channel number and the time slot number of the target non-participating base station to a terminal, so that the terminal can switch 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 conduct the voice call on a time slot indicated by the time slot number of the target non-participating base station, and therefore the purpose that the terminal can switch to the non-participating base station to continue the voice call when moving to a base station range of the call of the terminal in the call process is achieved, and the quality of the voice call is guaranteed.

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

Referring to fig. 2, a flow chart of a non-participating base station handover method according to 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 voice call process, 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 voice call of the transmitting terminal is detected to be smaller than a first handoff threshold value, a non-participating base station handoff request is sent to the participating base station through a preset position.

In the process of executing step S201, during the process of transmitting voice call by the transmitting terminal, the transmitting terminal judges whether the current call is stable or not by detecting the field intensity value of the channel of the participating base station; and under the condition that the transmitting terminal detects that the field intensity value of the participating base station is weakened and 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-zone threshold value.

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

In the 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 a non-participating base station handover request to the participating base station through the preset position may be: the transmitting terminal transmits 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.

S202: detecting the field intensity value of the channel of the non-participating base station, and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as the target non-participating base station.

In the specific execution of step S202, under the condition that the states of all channels in each non-participating base station in the same communication system are active, the transmitting terminal detects the field intensity 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 intensity value of the channel of each non-participating base station with the second handover threshold, and selects the non-participating base station with the field intensity value not smaller 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 transmits a voice frame to the participating base station or receives the voice frame transmitted by the participating base station.

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

In the specific execution of step S203, after the transmitting 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 voice access request is sent to the participating base station through the preset position, so that 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, the target non-participating base station accesses the transmitting voice call of the transmitting terminal based on the received call access request, and feeds back the channel number and the time slot number of the target channel to the participating base station.

In the 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 transmits the voice access request of the target non-participating base station through the preset position participating base station may be: the transmitting terminal transmits a voice access request of the target non-participating base station to the participating base station through the embedded LC position, the uplink idle channel or the uplink reserved designated position.

S204: when the channel number and the time slot number of the target non-participating base station transmitted 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 of the current transmission on the time slot indicated by the time slot number of the target non-participating base station.

In the specific execution of step S204, after receiving the channel number and the time slot number sent by the target non-participating base station, the participating base station may fill the received channel number and time slot number of the target non-participating base station 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. Wherein the second time slot is a time slot used when the participating base station receives or transmits 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 performs the voice call on the time slot indicated by the time slot number of the target non-participating base station.

In the non-participation base station handover method provided by the invention, in the voice call process, the transmitting terminal detects that the field intensity value of the channel of the participation base station is smaller than the preset threshold value, and the field intensity value of the channel of each other participation base station participating in the voice call of the transmitting terminal is smaller than the first handover threshold value, and sends a non-participation base station handover request to the participation base station through the preset position, so that the participation base station sends an activation notification to the non-participation base station in the same communication system based on the non-participation base station handover request, and the non-participation base station is in an activated state; detecting the field intensity value of a channel of the non-participating base station, and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as a target non-participating base station; transmitting a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to transmit 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and transmitting a voice call on the time slot indicated by the time slot number of the target non-participating base station, so that the purpose that the transmitting 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 participating in the call of the transmitting terminal in the calling process, and the quality of the voice call is ensured is achieved.

Referring to fig. 3, a flow chart of a non-participating base station handover method according to 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 voice call process, 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 voice call of the receiving 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.

In the process of executing step S301 specifically, during 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 intensity value of the channel of the participating base station; and under the condition that the receiving terminal detects that the field intensity value of the participating base station is weakened and 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-zone threshold value.

And under the condition that the field intensity value of the channel of each other participating base station participating in the receiving voice call of the receiving terminal is smaller than the first handover threshold value, determining that each other participating base station participating in the transmitting voice call of the receiving terminal does not meet the handover condition, and sending a non-participating base station handover request to the participating base station through a preset position. And 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 station in the same communication system based on the received non-participating base station handover request, so that the non-participating base station in the same system is 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 application, and reference may be made to the corresponding content in fig. 2 disclosed in the present application, which is not repeated here.

S302: detecting the field intensity value of the channel of the non-participating base station, and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as the target non-participating base station.

In the specific execution of step S302, under the condition that the state of the channel of each non-participating base station in the same communication system is an active state, the receiving terminal detects the field intensity 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 intensity value of the channel of each non-participating base station with the second handover threshold, and selects the non-participating base station with the field intensity value 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 transmits a voice frame to the participating base station or receives the voice frame transmitted by the participating base station.

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

In the specific execution of 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 target non-participating base station voice access request is sent to the participating base station through the preset position, so that 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, the target non-participating base station joins the received voice call of the receiving terminal based on the received call joining request, and the channel number and the time 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 application, and reference may be made to the corresponding content in fig. 2 disclosed in the present application, which is not repeated here.

S304: when the channel number and the time slot number of the target non-participating base station transmitted 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 received at this time on the time slot indicated by the time slot number of the target non-participating base station.

In the specific execution of step S304, after receiving the channel number and the time slot number sent by the target non-participating base station, the participating base station may fill the received channel number and time slot number of the target non-participating base station to a corresponding position in the preset RC reverse signaling frame, to obtain a target RC reverse signaling frame; and transmitting a target RC reverse signaling frame to the terminal based on the adjacent time slots of the second time slot. Wherein the second time slot is a time slot used when the participating base station receives or transmits 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 performs the current received voice call on the time slot indicated by the time slot number of the target non-participating base station.

In the non-participation base station handover method provided by the invention, in the voice call process, the receiving terminal detects that the field intensity value of the channel of the participation base station is smaller than the preset threshold value, and the field intensity value of the channel of each other participation base station participating in the voice call of the receiving terminal is smaller than the second handover threshold value, and sends a non-participation base station handover request to the participation base station through the preset position, so that the participation base station sends an activation notification to the non-participation base station in the same communication system based on the non-participation base station handover request, and the non-participation base station is in an activated state; detecting the field intensity value of a channel of the non-participating base station, and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as a target non-participating base station; transmitting a target non-participating base station voice access request to a participating base station through a preset position, enabling the participating base station to transmit 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing voice call receiving on the time slot indicated by the time slot number of the target non-participating base station, so that the purpose that the receiving terminal can be switched to the non-participating base station to continue the voice call receiving this time when moving to the range of the base station which is not participating in the call of the receiving terminal in the call process is achieved, and the quality of the voice call is ensured.

In order to better understand the foregoing, an XPT communication system is taken as an example, and the non-participating base station handover method provided by the embodiment of the present invention is illustrated 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 the base station Site1 has only one channel S1-1, and the terminal R3 stays on the channel S1-1 of the base station Site 1; the base station Site2 has two channels, namely a channel S2-1 and a channel S2-2, and a terminal R1 and a terminal R2 stay on the channel S2-2 of the base station Site 2; base station Site3 has only one channel S3-1 and there is no terminal stay on channel S3-1 of base station Site 3.

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

In the process of receiving a voice call, the receiving terminal R2 detects that the field intensity value of the channel S2-2 of the participating base station (base station Site 2) is weakened and smaller than a preset threshold value due to the movement of the position, detects the field intensity values of other participating base stations (base station Site 1) based on adjacent time slots of the first time slot on the channel S2-2, and if the field intensity values of other participating base stations (base station Site 1) are smaller than a second handover threshold value, sends a non-participating base station handover request to the participating base station (base station Site 2) through an uplink reserved designated position.

After receiving the non-participating base station handover request sent by the receiving terminal R2, the participating base station (base station Site 2) sends an activation notification to the non-participating base station (base station Site 3) in the same XPT communication system based on the received non-participating base station handover request; when the non-participating base station (base station Site 3) receives the activation notification sent by the participating base station (base station Site 2), the current state of the channel (S3-1) is converted into an activated state.

The receiving terminal R2 detects the field intensity value of the channel (S3-1) of the non-participating base station (base station Site 3) on the channel (S3-1) of the non-participating base station (Site 3) based on the switching of the adjacent time slot of the first time slot on the channel S2-2, judges whether the field intensity value of the channel (S3-1) of the non-participating base station (base station Site 3) is larger than a second cross-zone threshold value, if so, determines that the non-participating base station (base station Site 3) is a target non-participating base station, and the channel (S3-1) is a target channel; and sending a target non-reference base station voice access request to the participating base station (base station Site 2) based on the uplink reservation specified position.

After receiving the target non-participating base station voice access request, the participating base station (base station Site 2) sends a call joining request to the target non-participating base station (base station Site 3) based on the received target non-participating base station voice access request; the target non-participating base station (base station Site 3) joins the received voice call of the receiving terminal R2 based on the received call joining 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 slot numbers of the target non-participating base station (channel number of base station Site 3).

The participating base station (base station Site 2) obtains a target RC reverse signaling frame by presetting corresponding positions of the RC reverse signaling frame fed back by the received channel number and time slot number filling value of the target non-participating base station (base station Site 3); the target RC reverse signaling frame is sent to the receiving terminal R2 based on the adjacent time slots of the second time slot on channel S2-2.

After receiving a target RC reverse signaling frame sent by a participating base station (base station Site 2), 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 Site 3), and carrying out the current received voice call on the time slot indicated by the time slot number of the target non-participating base station (base station Site 3).

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

a first sending unit 51, configured to 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 a field intensity value of a channel of each other participating base station of a voice call of a participating terminal is smaller than a first handover threshold in a voice call process, 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;

A detection unit 52, configured to detect a field strength value of a channel of the 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 the 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 slot number fed back by the target non-participating base station;

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

The non-participation base station handover switching device provided by the invention is applied to a terminal, in the process of voice call, the terminal detects that the field intensity value of the channel of a participation base station is smaller than a preset threshold value, and the field intensity value of the channel of each other participation base station participating in the voice call of the terminal is smaller than a first handover threshold value, and sends a non-participation base station handover request to the participation base station through a preset position, so that the participation base station sends an activation notification to the non-participation base station in the same communication system based on the non-participation base station handover request, and the non-participation 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 with the field intensity value not smaller than the second cross-region threshold value as a target non-participating base station; transmitting a target non-participating base station voice access request to the participating base station through a preset position, enabling the participating base station to transmit 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing voice call on the time slot indicated by the time slot number of the target non-participating base station, so that the purpose 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 participating in the call of the terminal in the call process, and the quality of the voice call is ensured is achieved.

In the embodiment of the application, the preset position is an embedded LC position, an uplink idle channel or an uplink reserved appointed 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 further configured to send a voice access request of the target non-participating base station to the participating base station through the embedded LC location, the uplink idle channel or the uplink reserved designated location.

In an 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 a neighboring 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-region threshold value and selecting the non-participating base station with the field intensity value not smaller than the second cross-region threshold value as the target non-participating base station.

In an embodiment of the present application, preferably, the switching unit includes:

the analyzing unit is used for analyzing the target RC reverse signaling frame to obtain the channel number and the time slot number of the target non-participating base station when receiving the target RC reverse signaling frame sent by the participating base station, wherein the target RC reverse signaling frame is generated based on the 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 numbers of the target non-participating base stations and carrying out the voice call on the time slots indicated by the time slot numbers of the target non-participating base stations.

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

an activation notification transmission unit 61 for transmitting an activation notification to a non-participating base station in the same communication system based on the non-participating base station handover request when the non-participating base station handover request transmitted by the terminal is received, 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 slot number fed back by the target non-participating base station;

and a third sending unit 63, configured to send 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 performs the voice call on the time slot indicated by the time slot number of the target non-participating base station, where the voice call includes a transmitting voice call and a receiving voice call.

The non-participation base station handover device provided by the application is applied to the participation base station, and when the participation base station transmits a non-participation base station handover request to a terminal, the non-participation base station handover request is based on the non-participation base station to transmit an activation notification to the non-participation base station in the same communication system, so that the non-participation base station is 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 the received channel number and time slot number of the target non-participating base station are sent 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 on the time slot indicated by the time slot number of the target non-participating base station, thereby realizing the purpose 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 participating in the call of the terminal in the call process, and further ensuring the quality of the voice call.

In the embodiment of the present application, preferably, the third sending unit includes:

And a fourth sending unit, configured to send a target RC reverse signaling frame generated based on a preset RC reverse signaling frame and a channel number and a time slot number of a 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 a time slot indicated by the time slot number of the target non-participating base station carried by the target RC reverse signaling frame.

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

Further, the non-participating base station switching device provided by the application further comprises:

and 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 based on the active notification when the active notification sent by the participating base station is received.

And when the target non-participating base station is used as the determined target non-participating base station, the target non-participating base station is used for receiving a call joining request sent by the participating base station, joining the call of the terminal based on the call joining request and the target channel, 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 non-participating base station handover method disclosed in the above embodiment of the present invention, the embodiment of the present invention further provides 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 call 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 with the field intensity value not smaller than the second cross-region 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 a preset position; when the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call is performed if the terminal is a transmitting terminal, and the voice call is performed if the terminal is a receiving terminal;

A participating base station for transmitting an activation notification to a non-participating base station in the same communication system based on a non-participating base station handover request when the non-participating base station handover request transmitted by the terminal is received; when receiving a target non-participating base station voice access request sent by a terminal, 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; transmitting 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 active state when receiving a non-participating base station handover request sent by the participating base station, adding a call of a terminal based on the call adding request and a target channel when receiving a call adding request sent by the participating base station as a determined target non-participating base station, 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.

The invention provides a non-participating base station handover system, in the course of voice call, when a terminal detects that the field intensity value of the channel of a 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 call of the terminal is smaller than a first handover threshold value, sending a non-participating base station handover request to the participating base station through a preset position; the non-participation base station sends an activation notification to the non-participation base station in the same communication system based on the received non-participation base station handover request, so that the non-participation base station is in an activation state, a terminal detects the field intensity value of a channel of the non-participation base station in the activation state, and the non-participation base station with the field intensity value not smaller than a second handover threshold value is selected as a target non-participation base station; after determining the target non-participating base station, the terminal sends a voice access request of the target non-participating base station to the participating base station through a preset position; the method comprises the steps that a participating base station sends a call access request to a target non-participating base station based on a received voice access request of the target non-participating base station, receives a channel number and a time slot number fed back by the target non-participating base station, and sends the channel number and the time slot number of the target non-participating base station to a terminal, so that the terminal can switch 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 conduct the voice call on a time slot indicated by the time slot number of the target non-participating base station, and therefore the purpose that the terminal can switch to the non-participating base station to continue the voice call when moving to a base station range of the call of the terminal in the call process is achieved, and the quality of the voice call is guaranteed.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

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 elements and steps are described above generally in terms of functionality in order to clearly illustrate the 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 solution. 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 merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

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

in the voice call process, 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 voice call of the terminal is detected to be smaller than a first handoff threshold value, sending a non-participating base station handoff request to the participating base station through a preset position, 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 handoff request, and enabling the non-participating base station to be in an activation state; the preset position is an embedded LC position, an uplink idle channel or an uplink reserved appointed position;

2. The method of claim 1, wherein said transmitting a non-participating base station handoff request to said participating base station via a preset location comprises:

and 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.

3. The method of claim 1, the sending, to the participating base station, the target non-participating base station voice access request through the preset location, comprising:

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

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

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

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

5. The method according to claim 1, wherein when the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing the voice call on the time slot indicated by the time slot 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 numbers of the target non-participating base stations, and carrying out the voice call on the time slots indicated by the time slot numbers of the target non-participating base stations.

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

transmitting 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 performs 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 a transmitting voice call and a receiving voice call;

The method for transmitting the channel number and the time slot number of the target non-participating base station to the terminal comprises the following steps: and transmitting the channel number and the time slot number of the target non-participating base station to the terminal based on the adjacent time slots of the second time slot, wherein the second time slot is a time slot used when the participating base station receives the voice frame or transmits the voice frame.

7. The method of claim 6, wherein the sending the channel number and the time slot number of the target non-participating base station to the terminal, causing the terminal to switch channels based on the channel number of the target non-participating base station, and performing the voice call on the time slot indicated by the time slot 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 carries out 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.

8. The method of claim 6, wherein the method further comprises:

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 activation states based on the activation notification;

when a call joining request sent by the participating base station is received as a determined target non-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 handoff apparatus for a non-participating base station, the apparatus comprising:

a first sending unit, configured to send a non-participating base station handover request to the 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 a field intensity value of a channel of each other participating base station participating in the voice call of the terminal is smaller than a first handover threshold in the process of the voice call, so that the participating base station sends an activation notification to a 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 preset position is an embedded LC position, an uplink idle channel or an uplink reserved appointed position;

10. A handoff apparatus for a non-participating base station, the apparatus comprising:

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

wherein the third transmitting unit includes:

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

11. A non-participating base station handoff system, said system comprising 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 call 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 with the field intensity value not smaller than the second cross-region 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 the channel number and the time slot number of the target non-participating base station transmitted by the participating base station are received, switching channels based on the channel number of the target non-participating base station, and performing the voice call on the time slot indicated by the time slot number of the target non-participating base station, wherein the voice call is performed if the terminal is a transmitting terminal, and the voice call is performed if the terminal is a receiving terminal; the preset position is an embedded LC position, an uplink idle channel or an uplink reserved appointed position;

the participating base station is used for sending an activation notification to a non-participating base station in the same communication system based on the non-participating base station handover request when the non-participating base station handover request sent by the terminal is received; when receiving a target non-participating base station voice access request sent by the terminal, 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; transmitting the channel number and the time slot number of the target non-participating base station to the transmitting terminal or the receiving terminal; the method for transmitting the channel number and the time slot number of the target non-participating base station to the terminal comprises the following steps: the method comprises the steps that a channel number and a time slot number of a target non-participating base station are sent to the terminal based on adjacent time slots of a second time slot, wherein the second time slot is a time slot used when the participating base station receives a voice frame or sends the voice frame;