CN112399502A - Subframe ratio adjusting method and base station - Google Patents

Subframe ratio adjusting method and base station Download PDF

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Publication number
CN112399502A
CN112399502A CN201910760517.3A CN201910760517A CN112399502A CN 112399502 A CN112399502 A CN 112399502A CN 201910760517 A CN201910760517 A CN 201910760517A CN 112399502 A CN112399502 A CN 112399502A
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cell
mobile terminal
fdd
gsm
switching
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CN112399502B (en
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钟步雷
刘春�
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the disclosure provides a subframe ratio adjusting method and a base station, wherein the method comprises the following steps: determining the service type of a mobile terminal in a cell; if the service type is data service, determining whether the mobile terminal supports FDD communication; if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists; if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell; and adjusting the subframe ratio of the TDD cell. The embodiment of the disclosure can switch the mobile terminal of the TDD cell to the FDD cell before adjusting the subframe ratio, which is helpful for avoiding service interruption of the mobile terminal caused by adjustment of the subframe ratio.

Description

Subframe ratio adjusting method and base station
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method for adjusting a subframe ratio and a base station.
Background
In an LTE TDD (Long Term Evolution Time Division duplex) network, uplink and downlink data are transmitted on different subframes. And because the data volume of the uplink and downlink services can be dynamically changed, the ratio of the subframes for controlling the uplink and downlink data can be dynamically adjusted.
In the prior art, after dynamically adjusting the subframe ratio, the base station side makes the adjusted subframe ratio effective through two schemes: firstly, all terminals in a cell are deactivated and an attach flow and a service flow are performed again after reactivation; second, for an idle mobile terminal, the base station may send a paging message to notify the mobile terminal to re-read the new subframe allocation of the cell, and for a connected mobile terminal, the adjusted subframe allocation may be effective only after detaching and re-attaching.
After the inventor researches the scheme, the adjustment of the subframe ratio is found to cause service interruption of the connected mobile terminal.
Disclosure of Invention
In view of the above, the present disclosure is proposed to provide a subframe matching adjusting method and a base station that solve the above problems, or at least partially solve the above problems.
According to a first aspect of the present disclosure, there is provided a method for adjusting a subframe matching ratio, including:
determining the service type of a mobile terminal in a cell;
if the service type is data service, determining whether the mobile terminal supports FDD communication;
if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists;
if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell;
and adjusting the subframe ratio of the TDD cell.
Optionally, the method further comprises:
if the service type is a voice service, determining whether a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists;
if a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists, informing the mobile terminal to measure the signal strength of the adjacent GSM cell;
and if the signal intensity of the GSM cell is greater than or equal to a preset intensity threshold value, switching the mobile terminal to the GSM cell.
Optionally, the method further comprises:
and if the GSM cell adjacent to the current TDD cell where the mobile terminal is located does not exist, or the signal intensity of the GSM cell is smaller than a preset intensity threshold value, determining whether the mobile terminal supports FDD communication, and entering a step of determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication.
Optionally, after the step of switching the mobile terminal from the current TDD cell to the FDD cell, the method further includes:
and switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after a preset time.
Optionally, the step of switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after the preset time includes:
starting a timer, and setting the overtime time of the timer as preset time;
and if the current time reaches the overtime of the timer, switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell.
In accordance with a second aspect of the present disclosure, there is provided a base station comprising:
the service type determining module is used for determining the service type of the mobile terminal in the cell;
an FDD communication determining module, configured to determine whether the mobile terminal supports FDD communication if the service type is a data service;
an FDD cell determining module, configured to determine whether an FDD cell corresponding to the same BBU as a current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication;
an FDD cell switching module, configured to switch the mobile terminal from the current TDD cell to an FDD cell if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists;
and the subframe ratio adjusting module is used for adjusting the subframe ratio of the TDD cell.
Optionally, the base station further includes:
a GSM cell determining module, configured to determine whether a GSM cell adjacent to a current TDD cell in which the mobile terminal is located exists if the service type is a voice service;
a signal strength measurement module, configured to notify the mobile terminal to measure the signal strength of an adjacent GSM cell if the GSM cell adjacent to the current TDD cell in which the mobile terminal is located exists;
and the GSM cell switching module is used for switching the mobile terminal to the GSM cell if the signal intensity of the GSM cell is greater than or equal to a preset intensity threshold value.
Optionally, the base station further includes:
and an FDD communication re-determination module, configured to determine whether the mobile terminal supports FDD communication if there is no GSM cell adjacent to the current TDD cell where the mobile terminal is located, or if the signal strength of the GSM cell is smaller than a preset strength threshold, and enter the step of determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located if the mobile terminal supports FDD communication.
Optionally, the base station further includes:
and the switching-back module is used for switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after preset time.
Optionally, the switch-back module comprises:
the timer starting submodule is used for starting a timer and setting the overtime time of the timer as preset time;
and the switching-back submodule is used for switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell if the current time reaches the overtime of the timer.
The embodiment of the disclosure has the following advantages:
according to the adjusting method of the subframe ratio and the base station, the service type of a mobile terminal in a cell is determined; if the service type is data service, determining whether the mobile terminal supports FDD communication; if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists; if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell; and adjusting the subframe ratio of the TDD cell. The embodiment of the disclosure can switch the mobile terminal of the TDD cell to the FDD cell before adjusting the subframe ratio, which is helpful for avoiding service interruption of the mobile terminal caused by adjustment of the subframe ratio.
The foregoing description is only an overview of the technical solutions of the present disclosure, and the embodiments of the present disclosure are described below in order to make the technical means of the present disclosure more clearly understood and to make the above and other objects, features, and advantages of the present disclosure more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the disclosure. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating a first step of an embodiment of a method for adjusting a subframe matching according to the present disclosure;
fig. 2 is a flowchart illustrating steps of a second embodiment of a method for adjusting a subframe matching according to the present disclosure;
fig. 3 shows a block diagram of a third embodiment of a base station according to the present disclosure;
fig. 4 shows a block diagram of a fourth embodiment of a base station according to the present disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
Referring to fig. 1, a flowchart illustrating a first step of an embodiment of a method for adjusting a subframe matching according to the present disclosure is shown, which may specifically include the following steps:
step 101, determining the service type of the mobile terminal in the cell.
The service type comprises a data service and a voice service, wherein the service type is the data service and represents that the mobile terminal is accessing network data, for example, a web page is accessed through a browser, instant messaging is performed through social application, and the like; the service type is a Voice service, which represents that the mobile terminal is passing through a Voice Over Long Term Evolution (VOLTE) service.
It can be understood that, in practical application, when a mobile terminal requests to transmit service data, it first sends a service request to a base station, and carries a service type, and the base station may record the service type of the mobile terminal after allocating a radio resource to the mobile terminal.
The embodiment of the disclosure is applied to an application scenario of adjusting the subframe ratio of a TDD cell, and a mobile terminal which is performing a service is switched to other cells before the subframe ratio is adjusted, so that the normal operation of the service is ensured.
And step 102, if the service type is a data service, determining whether the mobile terminal supports FDD communication.
The FDD communication supports a frequency division standard for the mobile terminal, and the existing mobile terminal standard includes: TDD (Time Division duplex) and FDD (Frequency Division duplex), some mobile terminals may only support TDD, some may only support FDD, and some mobile terminals may support both TDD and FDD, and the mobile terminal may access the TDD cell in TDD mode and the FDD cell in FDD mode.
Specifically, the format of the mobile terminal may be stored in the base station when the mobile terminal registers with the base station, so that the format of the base station may be obtained from the base station, and whether FDD communication is supported or not may be determined.
Step 103, if the mobile terminal supports FDD communication, determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located.
Wherein, a BBU (baseband Based Unit) is used to complete baseband processing functions of the Uu interface, such as coding, multiplexing, modulating, and spreading.
Specifically, first, a BBU corresponding to a current TDD cell is acquired from cell configuration information of a base station; and then, acquiring the FDD cell corresponding to the BBU from the cell configuration information.
It should be noted that, if the mobile terminal does not support FDD communication, the mobile terminal performing the data service cannot be switched to the FDD cell, so that the mobile terminal must first interrupt the data service, then adjust the subframe ratio, then re-access the mobile terminal to the TDD cell, and re-initiate the data service.
And 104, if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell.
Specifically, firstly, a handover request is sent to an FDD cell, and current TDD cell information and mobile terminal information are carried; then, the FDD cell receives the switching of the mobile terminal after allocating the wireless resource to the mobile terminal for the switching request; finally, the FDD cell continues to support the data service of the mobile terminal.
The embodiment of the disclosure can switch the mobile terminal to the FDD cell corresponding to the original BBU, which is helpful for improving the switching success rate and the switching speed.
It should be noted that, if there is no FDD cell corresponding to the same BBU as the current TDD cell in which the mobile terminal is located, the mobile terminal performing the data service cannot be switched to the FDD cell, so that the mobile terminal must first interrupt the data service, then re-access the mobile terminal to the TDD cell after adjusting the subframe ratio, and re-initiate the data service, or select another FDD cell not corresponding to the same BBU as the current TDD cell to switch the mobile terminal performing the data service to another FDD cell, but the switching success rate or the switching speed may be low.
And 105, adjusting the subframe ratio of the TDD cell.
The subframe ratio may be a relationship between the number of subframes for transmitting uplink service data, downlink service data, and special data, and in the embodiment of the present disclosure, the relationship between the number of subframes for transmitting uplink service data and downlink service data is mainly concerned. As shown in fig. 1, there are 7 subframe ratios, where the uplink and downlink configuration numbers are the numbers of each subframe ratio, and from 0 to 6, the uplink and downlink switching point period is the duration of each subframe, and 10 timeslots 0 to 9 in total constitute 10 TDD subframes, where D denotes that the subframe is used for transmitting downlink service data, U denotes that the subframe is used for transmitting uplink service data, and S denotes that the subframe is used for transmitting special data. Therefore, it can be seen that, for the subframe ratio with the number of 0, there are 2 subframes for transmitting downlink service data and 6 subframes for transmitting uplink service data; for the subframe ratio with the number of 1, 4 subframes for transmitting downlink service data and 4 subframes for transmitting uplink service data exist; for the subframe ratio with the number of 2, 6 subframes for transmitting downlink service data and 2 subframes for transmitting uplink service data exist; for the subframe ratio with the number of 3, 6 subframes for transmitting downlink service data and 3 subframes for transmitting uplink service data exist; for the subframe ratio with the number of 4, 7 subframes for transmitting downlink service data and 2 subframes for transmitting uplink service data exist; for the subframe ratio with the number of 5, 8 subframes for transmitting downlink service data and 1 subframe for transmitting uplink service data exist; for the subframe allocation with the number of 6, there are 3 subframes for transmitting downlink service data and 5 subframes for transmitting uplink service data.
Figure BDA0002170109630000071
TABLE 1
Specifically, the subframe ratio may be adjusted according to the data amount of the current uplink and downlink services, and if the data amount of the uplink service increases or the data amount of the downlink service decreases, the number of subframes for transmitting the uplink service increases, for example, the subframe ratio may be adjusted from the subframe ratio numbered 2 in table 1 to the subframe ratio numbered 1; if the data amount of the uplink service decreases or the data amount of the downlink service increases, the number of subframes for transmitting the downlink service is decreased, for example, the subframe ratio may be adjusted from the subframe ratio numbered 1 in table 1 to the subframe ratio numbered 2.
In the embodiment of the disclosure, the service type of a mobile terminal in a cell is determined; if the service type is data service, determining whether the mobile terminal supports FDD communication; if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists; if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell; and adjusting the subframe ratio of the TDD cell. The embodiment of the disclosure can switch the mobile terminal of the TDD cell to the FDD cell before adjusting the subframe ratio, which is helpful for avoiding service interruption of the mobile terminal caused by adjustment of the subframe ratio.
Example two
Referring to fig. 2, a flowchart illustrating a second step of an embodiment of a method for adjusting a subframe matching according to the present disclosure is shown, which may specifically include the following steps:
step 201, determining the service type of the mobile terminal in the cell.
This step can refer to the detailed description of step 101, and is not described herein again.
Step 202, if the service type is data service, determining whether the mobile terminal supports FDD communication.
This step can refer to the detailed description of step 102, and is not described herein again.
Step 203, if the mobile terminal supports FDD communication, determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located.
This step can refer to the detailed description of step 103, which is not repeated herein.
And 204, if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell.
This step can refer to the detailed description of step 104, and will not be described herein.
Step 205, if the service type is a voice service, determining whether a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists.
Among them, GSM (Global System for Mobile Communication) cells are used to provide 2G services, e.g., voice services, to Mobile terminals.
Specifically, the GSM cell adjacent to the current TDD cell may be obtained from the neighbor relation table, and the neighbor relation table may be obtained by pre-configuration and stored to the base station.
Step 206, if there is a GSM cell adjacent to the current TDD cell where the mobile terminal is located, notifying the mobile terminal to measure the signal strength of the adjacent GSM cell.
Specifically, the mobile terminal may initiate a measurement request to the GSM cell, so that the base station corresponding to the GSM cell sends a measurement signal to the mobile terminal, and the mobile terminal calculates the signal strength of the measurement signal when receiving the measurement signal.
It should be noted that, if the current TDD cell in which the mobile terminal is located is not located in a GSM cell adjacent to the current TDD cell, there is no measurement target, and the mobile terminal cannot be switched to the GSM cell.
Step 207, if the signal strength of the GSM cell is greater than or equal to a preset strength threshold, the mobile terminal is switched to the GSM cell.
The preset intensity threshold value may be set empirically, and may be set according to the minimum signal intensity that can ensure normal voice communication.
The embodiment of the disclosure can preferentially switch the mobile terminal which is performing the voice service to the GSM cell when the signal strength of the GSM cell is greater than the preset strength threshold, so as to ensure that the voice service of the mobile terminal is performed normally without being interrupted by the influence of the subframe ratio adjustment.
Step 208, if there is no GSM cell adjacent to the current TDD cell in which the mobile terminal is located, or the signal strength of the GSM cell is smaller than a preset strength threshold, determining whether the mobile terminal supports FDD communication, and entering the step of determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell in which the mobile terminal is located if the mobile terminal supports FDD communication.
It can be appreciated that FDD cells can support not only data services, but also voice services.
In the embodiment of the disclosure, when there is no GSM cell adjacent to the current TDD cell where the mobile terminal is located or the signal strength of the GSM cell is less than the preset strength threshold, the mobile terminal may be switched to the FDD cell to ensure that the voice service of the mobile terminal is normally performed without being interrupted by the influence of the subframe matching adjustment.
Step 209, adjusting the subframe ratio of the TDD cell.
This step can refer to the detailed description of step 105, which is not repeated herein.
Step 210, switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after a preset time.
The preset time can be set according to the time required for adjusting the subframe ratio and can be set according to an empirical value.
In the embodiment of the disclosure, after the cell switching is completed, recording the switched GSM cell or FDD cell and the mobile terminal; after the preset time, the subframe matching adjustment is completed, and at this time, the mobile terminal may be switched back to the original TDD cell from the GSM cell or the FDD cell. Therefore, the mobile terminal switched back to the TDD cell transmits the service data according to the subframe ratio of the new TDD cell. In addition, the mobile terminal which does not perform the service can directly use the new subframe ratio when initiating the service.
In the embodiment of the disclosure, the mobile terminal can be switched back to the original TDD cell after the subframe ratio is switched, so that the consistency before and after the subframe ratio is adjusted can be ensured, and the condition that the number of mobile terminals in the cell is too large or too small after the subframe ratio is adjusted is avoided.
Optionally, in another embodiment of the present disclosure, the step 210 includes sub-steps a1 to a 2:
and a substep A1, starting a timer and setting the timeout time of the timer to be a preset time.
Specifically, the timer may be started when handover completion information sent by the FDD cell or the GSM cell is received.
And a substep a2, switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell if the current time reaches the timeout time of the timer.
The embodiment of the disclosure can accurately switch the mobile terminal back to the TDD cell through the timer.
In the embodiment of the present disclosure, based on the beneficial effect of the first embodiment, the mobile terminal performing the voice service may be preferentially switched to the GSM cell, and switched to the FDD cell when the GSM cell does not exist, so as to ensure that the voice service of the mobile terminal is normally performed without being interrupted by the influence of the subframe ratio adjustment, and the mobile terminal may be accurately switched back to the TDD cell by using the timer after the subframe ratio is switched.
EXAMPLE III
Referring to fig. 3, a block diagram of a third embodiment of a base station according to the present disclosure is shown, which may specifically include the following modules:
a service type determining module 301, configured to determine a service type of a mobile terminal in a cell.
An FDD communication determining module 302, configured to determine whether the mobile terminal supports FDD communication if the service type is a data service.
An FDD cell determining module 303, configured to determine whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication.
An FDD cell switching module 304, configured to switch the mobile terminal from the current TDD cell to an FDD cell if there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located.
A subframe ratio adjusting module 305, configured to adjust a subframe ratio of the TDD cell.
In the embodiment of the disclosure, the service type of a mobile terminal in a cell is determined; if the service type is data service, determining whether the mobile terminal supports FDD communication; if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists; if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell; and adjusting the subframe ratio of the TDD cell. The embodiment of the disclosure can switch the mobile terminal of the TDD cell to the FDD cell before adjusting the subframe ratio, which is helpful for avoiding service interruption of the mobile terminal caused by adjustment of the subframe ratio.
Example four
Referring to fig. 4, a block diagram of a fourth embodiment of a base station according to the present disclosure is shown, which may specifically include the following modules:
a service type determining module 401, configured to determine a service type of a mobile terminal in a cell.
An FDD communication determining module 402, configured to determine whether the mobile terminal supports FDD communication if the service type is a data service.
An FDD cell determining module 403, configured to determine whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication.
An FDD cell switching module 404, configured to switch the mobile terminal from the current TDD cell to an FDD cell if there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located.
A GSM cell determining module 405, configured to determine whether a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists if the service type is a voice service.
A signal strength measuring module 406, configured to notify the mobile terminal to measure the signal strength of the adjacent GSM cell if there is a GSM cell adjacent to the current TDD cell in which the mobile terminal is located.
A GSM cell switching module 407, configured to switch the mobile terminal to the GSM cell if the signal strength of the GSM cell is greater than or equal to a preset strength threshold.
An FDD communication re-determination module 408, configured to determine whether the mobile terminal supports FDD communication if there is no GSM cell adjacent to the current TDD cell where the mobile terminal is located, or if the signal strength of the GSM cell is smaller than a preset strength threshold, and enter the step of determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located if the mobile terminal supports FDD communication.
A subframe ratio adjusting module 409, configured to adjust a subframe ratio of the TDD cell.
A switch-back module 410, configured to switch the mobile terminal from the GSM cell or the FDD cell to the TDD cell after a preset time.
Optionally, in another embodiment of the present disclosure, the switch-back module 410 includes:
and the timer starting submodule is used for starting the timer and setting the overtime time of the timer as preset time.
And the switching-back submodule is used for switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell if the current time reaches the overtime of the timer.
In the embodiment of the present disclosure, based on the third beneficial effect, the mobile terminal performing the voice service may be preferentially switched to the GSM cell, and switched to the FDD cell when the GSM cell does not exist, so as to ensure that the voice service of the mobile terminal is normally performed without being interrupted by the influence of the subframe ratio adjustment, and the mobile terminal may be accurately switched back to the TDD cell by using the timer after the subframe ratio is switched.
For the base station embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant points, refer to the partial description of the method embodiment.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with this teaching. The required structure for constructing such a system will be apparent from the description above. Moreover, this disclosure is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the present disclosure as described herein, and any descriptions above of specific languages are provided for disclosure of enablement and best mode of the present disclosure.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the disclosure, various features of the disclosure are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this disclosure.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Moreover, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the disclosure and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Various component embodiments of the disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the subframe proportioning adjustment apparatus according to embodiments of the present disclosure. The present disclosure may also be embodied as apparatus or base station programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present disclosure may be stored on a computer-readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the disclosure, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claim enumerating several base stations, several of these base stations may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims (10)

1. A method for adjusting a subframe ratio is characterized by comprising the following steps:
determining the service type of a mobile terminal in a cell;
if the service type is data service, determining whether the mobile terminal supports FDD communication;
if the mobile terminal supports FDD communication, determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists;
if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists, switching the mobile terminal from the current TDD cell to the FDD cell;
and adjusting the subframe ratio of the TDD cell.
2. The method of claim 1, further comprising:
if the service type is a voice service, determining whether a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists;
if a GSM cell adjacent to the current TDD cell where the mobile terminal is located exists, informing the mobile terminal to measure the signal strength of the adjacent GSM cell;
and if the signal intensity of the GSM cell is greater than or equal to a preset intensity threshold value, switching the mobile terminal to the GSM cell.
3. The method of claim 2, further comprising:
and if the GSM cell adjacent to the current TDD cell where the mobile terminal is located does not exist, or the signal intensity of the GSM cell is smaller than a preset intensity threshold value, determining whether the mobile terminal supports FDD communication, and entering a step of determining whether an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication.
4. The method according to any of claims 1 to 3, wherein the step of switching the mobile terminal from the current TDD cell to the FDD cell is followed by further comprising:
and switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after a preset time.
5. The method of claim 4, wherein the step of switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after a preset time comprises:
starting a timer, and setting the overtime time of the timer as preset time;
and if the current time reaches the overtime of the timer, switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell.
6. A base station, comprising:
the service type determining module is used for determining the service type of the mobile terminal in the cell;
an FDD communication determining module, configured to determine whether the mobile terminal supports FDD communication if the service type is a data service;
an FDD cell determining module, configured to determine whether an FDD cell corresponding to the same BBU as a current TDD cell where the mobile terminal is located exists if the mobile terminal supports FDD communication;
an FDD cell switching module, configured to switch the mobile terminal from the current TDD cell to an FDD cell if an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located exists;
and the subframe ratio adjusting module is used for adjusting the subframe ratio of the TDD cell.
7. The base station of claim 6, wherein the base station further comprises:
a GSM cell determining module, configured to determine whether a GSM cell adjacent to a current TDD cell in which the mobile terminal is located exists if the service type is a voice service;
a signal strength measurement module, configured to notify the mobile terminal to measure the signal strength of an adjacent GSM cell if the GSM cell adjacent to the current TDD cell in which the mobile terminal is located exists;
and the GSM cell switching module is used for switching the mobile terminal to the GSM cell if the signal intensity of the GSM cell is greater than or equal to a preset intensity threshold value.
8. The base station of claim 7, wherein the base station further comprises:
and an FDD communication re-determination module, configured to determine whether the mobile terminal supports FDD communication if there is no GSM cell adjacent to the current TDD cell where the mobile terminal is located, or if the signal strength of the GSM cell is smaller than a preset strength threshold, and enter the step of determining whether there is an FDD cell corresponding to the same BBU as the current TDD cell where the mobile terminal is located if the mobile terminal supports FDD communication.
9. The base station according to any of claims 6 to 8, wherein the base station further comprises:
and the switching-back module is used for switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell after preset time.
10. The base station of claim 9, wherein the switch-back module comprises:
the timer starting submodule is used for starting a timer and setting the overtime time of the timer as preset time;
and the switching-back submodule is used for switching the mobile terminal from the GSM cell or the FDD cell to the TDD cell if the current time reaches the overtime of the timer.
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