CN111885654B - Cell switching method and terminal equipment - Google Patents
Cell switching method and terminal equipment Download PDFInfo
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- CN111885654B CN111885654B CN202010623872.9A CN202010623872A CN111885654B CN 111885654 B CN111885654 B CN 111885654B CN 202010623872 A CN202010623872 A CN 202010623872A CN 111885654 B CN111885654 B CN 111885654B
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a cell switching method and terminal equipment, which are applied to the technical field of communication and can solve the problem of high power consumption of the terminal equipment. The method comprises the following steps: after switching from an RRC connected state to an RRC idle state, switching from a first cell to a second cell, wherein the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of the first cell in an adjacent cell of the first cell.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell switching method and terminal equipment.
Background
With the development of mobile communication technology, the uploading and downloading rate of the terminal equipment is faster and faster.
When the terminal device interacts with the network device, radio Resource Control (RRC) needs to be established for connection, after the RRC connection is established, the terminal device can perform data interaction with the network side, and the terminal device needs to turn on a receiver to receive downlink data and signaling for performing data interaction with the network device, so that power consumption of the terminal device is very large. In order to solve the problem, the network device may configure an energy-saving policy of a Discontinuous Reception (DRX) mechanism for the terminal device, and the terminal device may configure a DRX cycle, so that the terminal device may enter a sleep mode (sleep mode) for a period of time without monitoring a Physical Downlink Control Channel (PDCCH) subframe, and wake up (wake up) from the sleep mode for another period of time to monitor the PDCCH subframe, so that the terminal device may achieve the purpose of saving power. In general, a terminal device scans a PDCCH of a whole bandwidth within a wake-up time (also referred to as a duration) in a DRX cycle, when the terminal device is in an RRC connected state, a cell with a larger bandwidth is usually used to guarantee a data transmission rate, and when the terminal device is in an RRC idle state, a required amount of the bandwidth is smaller, and if the cell in which the terminal device is located is still a cell with a larger bandwidth in the RRC idle state, the PDCCH scanning time is longer, which results in a larger power consumption of the terminal device.
Disclosure of Invention
The embodiment of the invention provides a cell switching method and terminal equipment, which are used for solving the problem that the power consumption of the terminal equipment is larger in the prior art. In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, a cell handover method is provided, where the method includes: after switching from an RRC connected state to an RRC idle state, switching from a first cell to a second cell, wherein the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of the first cell in adjacent cells of the first cell.
Optionally, before the handover from the first cell to the second cell, the method further includes:
measuring neighboring cells of the first cell while in an RRC connected state;
acquiring the bandwidth of each cell in the adjacent cells of the first cell;
selecting the second cell as a reselection cell from neighboring cells of the first cell.
Optionally, before the handover from the first cell to the second cell, the method further includes:
receiving a first identifier which is sent by network equipment and used for indicating the second cell;
and selecting the second cell from the adjacent cells of the first cell as a reselection cell according to the first identifier.
Optionally, before the handover from the first cell to the second cell, the method further includes:
recording access criterion conditions, and/or signal strength, of respective ones of the first cell's neighboring cells.
Optionally, the second cell is specifically any cell that meets a cell access condition in the target cell;
the condition of meeting the cell access condition refers to that the access criterion condition meets the access criterion of the terminal equipment, and/or the signal strength is greater than a target strength threshold value.
Optionally, the second cell is specifically a cell with the smallest bandwidth in the target cell;
alternatively, the first and second liquid crystal display panels may be,
the second cell is specifically a cell which satisfies cell access conditions and has the smallest bandwidth in the target cell.
Optionally, before the handover from the first cell to the second cell, the method further includes:
recording information of the first cell;
after the handover from the first cell to the second cell, the method further includes:
and after switching from the RRC idle state to the RRC connected state, switching from the second cell to the first cell according to the recorded information of the first cell.
In a second aspect, a terminal device is provided, which includes: the processing module is configured to switch from a first cell to a second cell after switching from an RRC connected state to an RRC idle state, where the second cell is any one of target cells, and the target cell is a cell with a bandwidth smaller than that of an adjacent cell of the first cell.
In a third aspect, a terminal device is provided, including: a memory storing executable program code;
a processor coupled with the memory;
the processor invokes the executable program code stored in the memory to perform the cell handover method as in the first aspect.
In a fourth aspect, a terminal device is provided, including: the method comprises the following steps: a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to execute the cell handover method in the first aspect of the embodiment of the present invention.
In a fifth aspect, a computer-readable storage medium is provided, which stores a computer program, where the computer program enables a computer to execute the cell handover method in the first aspect of the embodiments of the present invention. The computer readable storage medium includes a ROM/RAM, a magnetic or optical disk, or the like.
In a sixth aspect, a computer program product is provided, which when run on a computer causes the computer to execute the cell handover method in the first aspect of the embodiments of the present invention.
A seventh aspect provides an application publishing platform, where the application publishing platform is configured to publish a computer program product, where when the computer program product runs on a computer, the computer is caused to execute a cell handover method in the first aspect of the embodiment of the present invention.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
in the embodiment of the present invention, the terminal device may switch from the first cell to the second cell with smaller bandwidth after switching from the RRC connected state to the RRC idle state, so that the time for scanning the PDCCH in the RRC idle state may be reduced, and power consumption of the terminal device may be saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a cell handover method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mobile phone according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first cell and the second cell, etc. are used to distinguish different cells, rather than to describe a particular order of cells.
The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
Generally, the bandwidth of a cell is not changed, and generally, when a terminal device is in an RRC connected state, in order to meet a requirement for data transmission, the terminal device may camp in a cell with a large bandwidth, and when the terminal device is in an RRC idle state, the UE needs a large bandwidth for data transmission, and only needs to perform downlink synchronization and receive a paging message, so that the requirement for the bandwidth is low. If the terminal device does not perform cell handover when switching from the RRC connected state to the RRC idle state, the terminal device may camp in a cell with a large bandwidth when in the RRC idle state, which may result in large power consumption of the terminal device. Specifically, if the terminal device performs PDCCH scanning of the whole bandwidth within the duration (on duration) of the DRX cycle, the larger the bandwidth, the longer the PDCCH scanning time is, and the longer the scanning time is, the larger the power consumption of the terminal device is. From simulation tests, when the bandwidth is switched from 100M to 20M, the PDCCH detection time response of each subframe is reduced, the 20M bandwidth is only 40% of the power consumption of the 100M bandwidth, and the power consumption is obviously saved when the bandwidth is smaller.
The embodiment of the invention provides a cell switching method and terminal equipment, which can be used for switching from a first cell to a second cell with smaller bandwidth after the terminal equipment is switched from an RRC (radio resource control) connection state to an RRC idle state, so that the time for scanning a PDCCH (physical downlink control channel) in the RRC idle state is reduced, and the power consumption of the terminal equipment can be saved.
The terminal device in the embodiment of the present invention may be referred to as a User Equipment (UE). The terminal device may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like, and may also be a mobile phone, a Mobile Station (MS), a mobile terminal (mobile terminal), a notebook computer, or the like, and may communicate with one or more core networks through a Radio Access Network (RAN). The terminal equipment may be, for example, a mobile telephone (or so-called "cellular" telephone) or a computer with a mobile terminal, etc., and may also be, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with the radio access network. The terminal device may also be a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved network, etc. The above is merely an example, and the practical application is not limited thereto.
The main body of the cell selection method provided in the embodiment of the present invention may be a terminal device or a functional module or a functional entity in the terminal device, and the cell selection method provided in the embodiment of the present invention will be exemplarily described below with the terminal device as the main body of the cell selection method.
As shown in fig. 1, an embodiment of the present invention provides a cell handover method, which may include the following steps:
101. the terminal device measures a neighboring cell of the first cell while in the RRC connected state.
102. The terminal equipment acquires the bandwidth of each cell in the adjacent cells of the first cell.
Optionally, the terminal device may measure the neighboring cells of the first cell to obtain MIB information of the neighboring cells of the first cell, where the MIB information includes bandwidth information of the cell, so that bandwidth of each of the neighboring cells of the first cell may be obtained from the MIB information of each of the neighboring cells of the first cell.
103. The terminal device switches from the RRC connected state to the RRC idle state.
After the RRC connection is released, since a large bandwidth is not required in the RRC idle state, a cell with a smaller bandwidth may be selected for reselection after the terminal device switches from the RRC connected state to the RRC idle state.
104. The terminal device selects a second cell as a reselection cell from neighboring cells of the first cell.
The first cell is a cell in which the terminal device is located when the terminal device is in an RRC connected state.
The second cell may be the following:
in the first case: the second cell is any one of the target cells, and the target cell is a cell of which the bandwidth in the adjacent cell of the first cell is smaller than that of the first cell.
It should be noted that the target cell may include one or more cells, and if there is one target cell, the target cell is a second cell; if there are multiple target cells, then the second cell may be any one of the multiple cells.
In the second case: the second cell is the cell with the smallest bandwidth in the target cell.
In order to reduce the time for scanning the PDCCH to the maximum extent in the RRC connected state, a cell with the smallest bandwidth may be selected from the target cells.
There may be one or more cells with the minimum bandwidth in the target cell, and if there are multiple cells with the minimum bandwidth in the target cell, one cell may be arbitrarily selected from the multiple cells as the second cell.
In the third case: the second cell is specifically any one of the cells satisfying the cell access condition in the target cell.
In a fourth case: the second cell may be a cell in the target cell that satisfies the cell access condition and has the smallest bandwidth.
The condition of meeting the cell access condition means that the condition of the access criterion meets the access criterion of the terminal equipment, and/or the signal intensity is greater than a target intensity threshold value.
Optionally, the target intensity threshold may be preset according to actual requirements, and the embodiment of the present invention is not limited.
The signal strength may include: at least one of a Reference Single Received Power (RSRP) and a Reference Single Received Quality (RSRQ).
The access criterion of the terminal device may be a cell selection S criterion.
When the terminal equipment selects the cell, whether the cell meets the S criterion of cell selection needs to be judged, and the basis of the S criterion of cell selection is the RSRP of the cell reference signal.
The access criterion condition of the resident cell meets the cell selection S criterion, which is specifically as follows:
Srxlev＞0；
Srxlev＝Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)-Pcompensation；
Pcompensation＝max(PMax-UE Maximum Outpower,0)。
the meaning of each parameter is as follows:
1. srxlev: the cell selects the S value in dB.
2. And Qrxlevmeas is the RSRP value of the measuring cell and has a unit dBm.
3. Qrxlevmin-the minimum received level of the cell, in dBm (this parameter may affect user access).
4. Qrxlevminooffset: reducing ping-pong between Public Land Mobile Networks (PLMNs) and this parameter is only used when the terminal device is camped on a visited PLMN, periodically searching for a higher level PLMN.
5. PMax: the maximum uplink transmission power allowed by the terminal equipment in the cell.
6. UE Maximum Outpower: maximum uplink transmit power determined by the terminal device capabilities.
Optionally, in this embodiment of the present invention, before switching from the first cell to the second cell, the method further includes:
the access criterion conditions, and/or the signal strength, of individual ones of the neighbouring cells of the first cell are recorded.
Optionally, the second cell may be selected by the terminal device itself, or may be indicated to the terminal device after being selected by the network device.
Optionally, the terminal device may receive a first identifier sent by the network device and used for indicating the second cell, and then select the second cell from neighboring cells of the first cell as the reselected cell according to the first identifier.
105. Information of the first cell is recorded.
The recording of the information of the first cell may be recording of frequency point information of the first cell.
106. The terminal device is handed over from the first cell to the second cell.
In the embodiment of the present invention, the terminal device may switch from the first cell to the second cell with smaller bandwidth after switching from the RRC connected state to the RRC idle state, so that the time for scanning the PDCCH in the RRC idle state may be reduced, and power consumption of the terminal device may be saved.
107. The terminal device switches from the RRC idle state to the RRC connected state.
108. And the terminal equipment is switched from the second cell to the first cell according to the recorded information of the first cell.
Since the RRC connected state requires data to be transmitted and thus requires a larger bandwidth, the terminal device switches from the second cell back to the first cell after switching from the RRC idle state to the RRC connected state.
Optionally, after the terminal device switches from the RRC idle state to the RRC connected state, the terminal device may also switch to a cell with a larger bandwidth.
In the embodiment of the present invention, the terminal device may further switch back to the second cell with a larger bandwidth from the second cell after switching from the RRC idle state to the RRC connected state, so as to ensure the transmission rate of data in the RRC connected state, and ensure the data transmission.
Furthermore, the terminal device can record the information of the first cell in advance, so that the terminal device can be directly switched to the first cell without cell measurement after being switched from the RRC idle state to the RRC connected state, and the power consumption of the terminal device is saved.
As shown in fig. 2, an embodiment of the present invention provides a terminal device, including:
the handover module 201 is configured to handover from a first cell to a second cell after switching from an RRC connected state to an RRC idle state, where the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of the first cell in an adjacent cell of the first cell.
Optionally, the method further includes:
a measuring module 202, configured to measure neighboring cells of a first cell when a terminal device is in an RRC connected state, and obtain a bandwidth size of each cell in the neighboring cells of the first cell;
a selecting module 203, configured to select a second cell from neighboring cells of the first cell as a reselecting cell.
Optionally, the method further includes:
a receiving module 204, configured to receive, before the switching module 201 switches the terminal device from the first cell to the second cell, a first identifier sent by the network device and used for indicating the second cell;
the selecting module 203 is further configured to select a second cell from neighboring cells of the first cell as a reselecting cell according to the first identifier.
Optionally, before switching from the first cell to the second cell, the method further includes:
a recording module 205, configured to record access criterion conditions, and/or signal strength, of respective cells in neighboring cells of the first cell.
Optionally, the second cell is specifically any cell that satisfies the cell access condition in the target cell;
the condition of meeting the cell access condition means that the access criterion condition meets the access criterion of the terminal equipment, and/or the signal intensity is greater than a target intensity threshold value.
Optionally, the second cell is specifically a cell with the smallest bandwidth in the target cell.
Optionally, the second cell is specifically a cell that satisfies the cell access condition and has the smallest bandwidth in the target cell.
Optionally, the recording module 205 is further configured to record information of the first cell before the handover module 201 switches from the first cell to the second cell;
the switching module 201 is further configured to switch from the second cell to the first cell according to the recorded information of the first cell after switching from the RRC idle state to the RRC connected state after switching from the first cell to the second cell.
The terminal device is exemplarily divided by the functional modules, and it can be understood that the terminal device may have other division modes, which are not listed in the present invention.
Optionally, the functional modules may also be integrated into one processing module.
As shown in fig. 3, an embodiment of the present invention further provides a terminal device, which may include:
a memory 301 storing executable program code;
a processor 302 coupled to the memory 301;
the processor 302 calls the executable program code stored in the memory 301 to execute the cell handover method executed by the terminal device in each of the above-mentioned method embodiments.
The terminal equipment provided by the embodiment of the invention can be a mobile phone.
As shown in fig. 4, the mobile phone may include: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. The rf circuit 1110 includes a receiver 1111 and a transmitter 1112. Those skilled in the art will appreciate that the handset configuration shown in fig. 4 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The memory 1120 may be used to store software programs and modules, and the processor 1180 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 1130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 1140 may include a display panel 1141, and optionally, the display panel 1141 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 1131 can cover the display panel 1141, and when the touch panel 1131 detects a touch operation on or near the touch panel, the touch panel is transmitted to the processor 1180 to determine the type of the touch event, and then the processor 1180 provides a corresponding visual output on the display panel 1141 according to the type of the touch event. Although in fig. 4, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, the description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the cell phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 4 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, and the like, and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.
The phone also includes a power supply 1190 (e.g., a battery) for providing power to various components, which may preferably be logically coupled to the processor 1180 via a power management system, such that the power management system may manage charging, discharging, and power consumption. Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In this embodiment of the present invention, the processor 1180 is configured to control the terminal device to switch from a first cell to a second cell after switching from the RRC connected state to the RRC idle state, where the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of a neighboring cell of the first cell.
Optionally, the method further includes:
the processor 1180 is further configured to measure neighboring cells of the first cell when the terminal device is in the RRC connected state, and obtain a bandwidth size of each cell in the neighboring cells of the first cell; and selecting a second cell as a reselection cell from neighboring cells of the first cell.
Optionally, the method further includes:
Optionally, before switching from the first cell to the second cell, the method further includes:
the processor 1180 is further configured to record access criterion conditions, and/or signal strength, of each of the neighboring cells of the first cell.
Optionally, the second cell is specifically any cell that satisfies the cell access condition in the target cell;
the condition of meeting the cell access condition means that the condition of the access criterion meets the access criterion of the terminal equipment, and/or the signal intensity is greater than a target intensity threshold value.
Optionally, the second cell is specifically a cell with the smallest bandwidth in the target cell.
Optionally, the second cell is specifically a cell that satisfies the cell access condition and has the smallest bandwidth in the target cell.
Optionally, the processor 1180 is further configured to record information of the first cell before switching from the first cell to the second cell;
the processor 1180 is further configured to, after the handover from the first cell to the second cell and after the handover from the RRC idle state to the RRC connected state, handover from the second cell to the first cell according to the recorded information of the first cell.
Embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute some or all of the steps of the method as in the above method embodiments.
Embodiments of the present invention also provide a computer program product, wherein the computer program product, when run on a computer, causes the computer to perform some or all of the steps of the method as in the above method embodiments.
Embodiments of the present invention further provide an application publishing platform, where the application publishing platform is configured to publish a computer program product, where the computer program product, when running on a computer, causes the computer to perform some or all of the steps of the method in the above method embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are exemplary and alternative embodiments, and that the acts and modules illustrated are not required in order to practice the invention.
The terminal device provided by the embodiment of the present invention can implement each process shown in the above method embodiments, and is not described herein again to avoid repetition.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not imply a necessary order of execution, and the order of execution of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated units, if implemented as software functional units and sold or used as a stand-alone product, may be stored in a computer accessible memory. Based on such understanding, the technical solution of the present invention, which is a part of or contributes to the prior art in essence, or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several requests for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute part or all of the steps of the above-described method of each embodiment of the present invention.
It will be understood by those skilled in the art that all or part of the steps of the methods of the embodiments described above may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, including Read-Only Memory (ROM), random Access Memory (RAM), programmable Read-Only Memory (PROM), erasable Programmable Read-Only Memory (EPROM), one-time Programmable Read-Only Memory (OTPROM), electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM) or other Memory capable of storing data, a magnetic tape, or any other computer-readable medium capable of storing data.
Claims (8)
1. A method for cell handover, comprising:
measuring neighboring cells of a first cell while in a radio resource control, RRC, connected state;
acquiring the bandwidth of each cell in the adjacent cells of the first cell;
selecting a second cell as a reselection cell from neighboring cells of the first cell;
after switching from the RRC connected state to the RRC idle state, recording information of the first cell, and switching from the first cell to the second cell, wherein the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of the first cell in an adjacent cell of the first cell;
and after switching from the RRC idle state to the RRC connected state, switching from the second cell to the first cell according to the recorded information of the first cell.
2. The method of claim 1, wherein prior to the handover from the first cell to the second cell, further comprising:
receiving a first identifier which is sent by network equipment and used for indicating the second cell;
and selecting the second cell from the adjacent cells of the first cell as a reselection cell according to the first identifier.
3. The method of claim 1, wherein prior to the handover from the first cell to the second cell, the method further comprises:
recording access criteria conditions, and/or signal strengths, for respective ones of the first cell's neighboring cells.
4. The method according to claim 1, wherein the second cell is specifically any cell of the target cells that satisfies cell access conditions;
the condition of meeting the cell access condition refers to that the access criterion condition meets the access criterion of the terminal equipment, and/or the signal strength is greater than a target strength threshold value.
5. The method according to any one of claims 1 to 4,
the second cell is specifically the cell with the smallest bandwidth in the target cell;
alternatively, the first and second electrodes may be,
the second cell is specifically a cell which satisfies cell access conditions and has the smallest bandwidth in the target cell.
6. A terminal device, comprising:
a processing module, configured to measure a neighboring cell of a first cell when the ue is in a radio resource control RRC connected state; acquiring the bandwidth of each cell in the adjacent cells of the first cell; selecting a second cell as a reselection cell from neighboring cells of the first cell; after switching from the RRC connected state to the RRC idle state, recording information of the first cell, and switching from the first cell to the second cell, wherein the second cell is any one of target cells, and the target cell is a cell with bandwidth smaller than that of the first cell in an adjacent cell of the first cell; and after switching from the RRC idle state to the RRC connected state, switching from the second cell to the first cell according to the recorded information of the first cell.
7. A terminal device, comprising:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to perform the method of any of claims 1 to 5.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which causes a computer to execute the method according to any one of claims 1 to 5.
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| CN108811008A (en) * | 2017-05-05 | 2018-11-13 | 捷开通讯(深圳)有限公司 | Communications status conversion method and device |
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