CN108882293B - Cell switching method, terminal and computer readable storage medium - Google Patents

Abstract

The embodiment of the present application discloses a cell handover method. The method may include: when the current cell transmits service data, receiving a measurement configuration message sent by a source base station corresponding to the current cell; the measurement configuration message carries neighbor cell information and Measurement parameter; based on the preset network deployment information, determine the bandwidth of the adjacent cell corresponding to the adjacent cell information; when the current connection is normal and the bandwidth of the adjacent cell meets the preset bandwidth lower limit range, the measurement parameter corresponds to the inter-frequency cell. The threshold value of event-triggered reporting is increased by a preset offset to obtain adjusted measurement parameters; based on the adjusted measurement parameters, it is determined whether to report a measurement report, and the measurement report is used for the source base station to make a handover decision. The embodiment of the present application also discloses a terminal and a computer-readable storage medium.

Description

Cell handover method, terminal and computer-readable storage medium

technical field

The embodiments of the present application relate to data transmission processing technologies in the communication field, and in particular, to a cell handover method, a terminal, and a computer-readable storage medium.

Background technique

With the popularization and improvement of the 4th Generation mobile communication technology (4G) network in the world, as well as the overall improvement of terminal processing performance, especially the popularity of third-party applications such as QQ and WeChat, more users have begun to Communication is performed on a terminal (eg, a mobile terminal). Therefore, the performance of the network delay of the terminal directly affects the usage of the user.

At present, the terminal needs to use the wireless network for communication when performing services. In the actual process, due to the operator's network deployment, there will be scenarios with small bandwidth. For example, the Band3 and Band8 supported by mobile operators are only 5M, and the telecommunications The only Band5 supported by the operator is 3M and 5M. When the terminal uses a small bandwidth for business processing, the bandwidth is small, so the number of resources allocated to the terminal by the wireless network is small, resulting in the terminal being allocated resources. Or there is a transmission delay during service processing or service data transmission on the frequency band, resulting in a stuck phenomenon.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a cell handover method, a terminal, and a computer-readable storage medium, which can reduce the transmission delay of data from the terminal to the air interface, improve the real-time performance of data transmission, and improve the performance of the terminal.

The technical solution of the present application is realized as follows:

The embodiment of the present application provides a cell handover method, including:

When the current cell performs service data transmission, a measurement configuration message sent by a source base station corresponding to the current cell is received; the measurement configuration message carries neighbor cell information and measurement parameters;

determining the bandwidth of the adjacent cell corresponding to the adjacent cell information based on the preset network deployment information;

When the current connection is normal and the bandwidth of the adjacent cell satisfies the preset bandwidth lower limit range, the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset to obtain an adjustment measurement parameter;

Based on the adjusted measurement parameters, it is determined whether to report a measurement report, where the measurement report is used for the source base station to make a handover decision.

In the above solution, before the receiving the measurement configuration message sent by the source base station corresponding to the current cell, the method further includes:

Obtain historical measurement records and historical location information;

Parse out the bandwidth of the historical neighboring cell corresponding to the historical location information from the historical measurement record;

The corresponding relationship between the historical location information and the bandwidth of the historical neighboring cells is used as the preset network deployment information.

In the above solution, the determination of the bandwidth of the neighboring cell corresponding to the neighboring cell information based on the preset network deployment information includes:

Get current location information;

The bandwidth of the adjacent cell corresponding to the current location information is obtained from the preset network deployment information.

In the above solution, after receiving the measurement configuration message sent by the source base station corresponding to the current cell, and before making a handover decision based on the adjusted measurement parameter, the method further includes:

Based on the neighbor cell information, neighbor cell measurement is performed to obtain measurement information of the neighbor cell.

In the above solution, determining whether to report the measurement report based on the adjustment of the measurement parameters includes:

According to the measurement information of the neighboring cell and the adjusted measurement parameter, determine whether the event triggering condition is satisfied;

When the event trigger condition is met, send the measurement report to the source base station to implement cell handover;

When the event triggering condition is not satisfied, continue to perform service data transmission in the current cell.

In the above solution, before the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset, the method further includes:

Detect the operation of business data and obtain operation information;

When the operation information indicates that the service data transmission is normal, it is detected that the current connection is normal;

When the operation information indicates that the service data transmission is abnormal, it is detected that the current connection is abnormal.

An embodiment of the present application provides a terminal, including:

a receiving unit, configured to receive a measurement configuration message sent by a source base station corresponding to the current cell when the current cell performs service data transmission; the measurement configuration message carries neighbor cell information and measurement parameters;

a determining unit, configured to determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on preset network deployment information;

A setting unit, configured to increase the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter by a preset offset when the current connection is normal and the bandwidth of the adjacent cell satisfies the preset bandwidth lower limit range quantity, get the adjustment measurement parameters;

A determination unit, configured to determine whether to generate a measurement report based on the adjusted measurement parameter, where the measurement report is used for the source base station to make a handover determination.

In the above terminal, the terminal further includes: an acquisition unit;

The acquisition unit is configured to acquire historical measurement records and historical location information before receiving the measurement configuration message sent by the source base station corresponding to the current cell; and parse out the historical location information from the historical measurement records. bandwidths of historical neighboring cells corresponding to the information; and using the corresponding relationship between historical location information and bandwidths of historical neighboring cells as the preset network deployment information.

In the above-mentioned terminal, the determining unit is specifically configured to acquire current location information; from the preset network deployment information, obtain the bandwidth of the adjacent cell corresponding to the current location information.

In the above terminal, the terminal further includes: a measuring unit;

The measurement unit is configured to, after receiving the measurement configuration message sent by the source base station corresponding to the current cell, perform a neighbor cell based on the neighbor cell information before making a handover decision based on the adjustment of the measurement parameter. measurement to obtain the measurement information of the adjacent cell.

In the above terminal, the terminal further includes: a sending unit and a service unit;

The judging unit is specifically configured to judge whether an event triggering condition is met according to the measurement information of the adjacent cell and the adjusted measurement parameter;

the sending unit, configured to send the measurement report to the source base station when the event trigger condition is met, so as to implement cell handover;

The service unit is configured to continue to perform service data transmission in the current cell when the event triggering condition is not satisfied.

In the above terminal, the terminal further includes: a detection unit;

The detection unit is configured to detect the operation of the service data before the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset to obtain operation information; and when the When the operation information indicates that the service data transmission is normal, it is determined that the current connection is normal; and when the operation information indicates that the service data transmission is abnormal, it is determined that the current connection is abnormal.

The embodiment of the present application also provides a terminal, including:

A receiver, a transmitter, a processor, and a storage medium storing instructions executable by the processor, data received by the receiver, and data transmitted by the transmitter, the receiver, the transmitter, and storage The medium relies on the processor to perform operations through the communication bus, and when the instructions are executed by the processor, the above-mentioned cell switching method is performed.

An embodiment of the present application provides a computer storage medium storing executable instructions, and when the executable instructions are executed by one or more processors, the processors execute the foregoing cell handover method.

Embodiments of the present application provide a cell handover method, a terminal, and a computer-readable storage medium. When the terminal transmits service data in a current cell, the terminal receives a measurement configuration message sent by a source base station corresponding to the current cell; the measurement configuration message carries There are neighbor cell information and measurement parameters; based on the preset network deployment information, the bandwidth of the neighbor cell corresponding to the neighbor cell information is determined; when the current connection is normal and the bandwidth of the neighbor cell meets the preset bandwidth lower limit range, the measurement parameter The threshold value of the event-triggered reporting corresponding to the inter-frequency cell is increased by a preset offset to obtain the adjusted measurement parameter; based on the adjusted measurement parameter, it is judged whether to report the measurement report, and the measurement report is used for the source base station to make a handover decision . With the above technical implementation solution, when the terminal is moving, the terminal performs service data transmission in the current cell, and the network side device (base station) triggers the handover process, because the terminal can receive the measurement configuration message. Under the premise of service data processing (that is, the current connection is normal), when judging whether the neighboring cell belongs to a cell with a small bandwidth (a bandwidth that meets the bandwidth within the preset bandwidth lower limit), the value of the decision threshold (which includes the It increases the difficulty of the event-triggered reporting decision, so that the measurement report may be delayed and reported to the base station side, which can delay the process of cell handover, thus avoiding data transmission when the cell is switched to a cell with a small bandwidth. The delay can improve the real-time performance of data transmission under the condition that the current cell can support service data, thereby improving the performance of the terminal.

Description of drawings

FIG. 1 is an architecture diagram of a communication system provided by an embodiment of the present application;

FIG. 2 is a flowchart 1 of a cell handover method provided by an embodiment of the present application;

FIG. 3 is a second flowchart of a cell handover method provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram 1 of a terminal according to an embodiment of the present application;

FIG. 5 is a second schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (Wideband) system Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (Universal Mobile Telecommunication System, UMTS), Worldwide Interoperability for Microwave Access (Worldwide Interoperability for Microwave Access, WiMAX) communication system or 5G system, etc.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied is shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area. Optionally, the network device 110 may be a base station (BaseTransceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station ( Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network equipment can be a mobile switching center, relay station, access point, in-vehicle equipment, wearable Devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110 . As used herein, "terminal equipment" includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cables, direct cable connections; and/or another data connection/network; and/or via a wireless interface, eg, for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or a device of another terminal device configured to receive/transmit a communication signal; and/or an Internet of Things (IoT) device. A terminal device arranged to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices including radiotelephone transceivers device. Terminal equipment may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved PLMNs, etc.

The cell handover method provided by the present application is implemented based on the architecture shown in FIG. 1 .

Example 1

This embodiment of the present application provides a cell handover method. As shown in FIG. 2 , the method may include:

S101. When the current cell performs service data transmission, a measurement configuration message sent by a source base station corresponding to the current cell is received; the measurement configuration message carries neighbor cell information and measurement parameters.

An application scenario of the cell handover method provided by the embodiment of the present invention may be: when a terminal (ie, UE) moves from its current cell (source cell) to a neighboring cell (target cell) in the process of moving, A situation arises where cell handover is required.

It should be noted that, in the process of moving, the terminal is in a state of transmitting service data in the current cell, that is, the terminal is moving in a connected state.

It should be noted that, preferably, the network environment implemented by the embodiment of the present invention may be LTE.

Optionally, the terminal in this embodiment of the present invention may be an electronic device having a wireless communication function, for example, a mobile phone, a tablet, and other devices, which are not limited in this embodiment of the present application.

In the embodiment of the present application, when the overall cell coverage of the terminal is good, the terminal is usually covered by 2-3 cells (ie, multiple cells) at the same time when moving. For the transmission of the current service data of the terminal, the RF resources or IP link of the current cell can support the current data demand. Therefore, the cell handover method provided by the present application is implemented based on this consideration.

It should be noted that in the process of moving the user and the terminal, it will switch from the current cell to the target cell, resulting in the resource reconstruction of the Radio Resource Control Protocol (RRC, Radio Resource Control) layer, that is, RRCReestablishement, and the upper layer TCP/IP data reconnection. The usual handover procedure starts from the neighbor cell measurement of the terminal, reports the measurement report obtained by the measurement to the base station, and the base station decides whether to issue RRCReconfiguration to perform the handover procedure. That is, it should be noted that, in this embodiment of the present invention, the specific implementation of the handover process may be as follows: the terminal receives a measurement configuration message sent by the source base station; the terminal performs measurement of neighboring cells based on the measurement configuration message, and obtains a measurement report; The measurement report is reported to the source base station; the terminal receives the handover instruction sent by the source base station based on the measurement report; the terminal performs the random access process of the target cell according to the handover instruction to complete the cell handover.

That is, when the current cell transmits service data, the terminal receives a measurement configuration message sent by the source base station corresponding to the current cell due to movement; wherein, the measurement configuration message carries neighbor cell information and measurement parameters.

In this embodiment of the present application, the measurement configuration message may carry: a neighbor cell list (neighbor cell information) and decision threshold parameters (measurement parameters), etc. In addition, the measurement configuration message may also carry a report configuration, a measurement identifier, a quantity configuration, etc. information.

It should be noted that the measurement may include: intra-frequency measurement and inter-frequency measurement. The intra-frequency measurement is to measure the downlink frequency of a neighboring cell that is the same as the downlink frequency of the current cell. Inter-frequency measurement is to measure a downlink frequency point different from the downlink frequency point of the current cell (same cell or adjacent cell).

In the embodiment of the present application, the terminal is mainly aimed at the scenario of implementing handover in inter-frequency cells, and therefore, is aimed at inter-frequency measurement.

S102. Determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on the preset network deployment information.

In the embodiment of the present application, preset network deployment information is pre-stored in the terminal, and the mapping relationship between the position represented by the preset network deployment information and the bandwidth of the adjacent cell is obtained based on historical measurement statistics of the terminal. The specific process can be:

Obtain historical measurement records and historical location information;

The bandwidth of the historical neighboring cell corresponding to the historical location information is parsed from the historical measurement record;

The corresponding relationship between the historical location information and the bandwidth of the historical neighboring cells is used as the preset network deployment information.

In this way, the process for the terminal to determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on the preset network deployment information may include: S1021-1022. as follows:

S1021. Acquire current location information.

S1022. Obtain the bandwidth of the adjacent cell corresponding to the current location information from the preset network deployment information.

If the terminal can obtain the current location information of itself through the positioning function or the notification of the base station, etc., since the preset network deployment information is the correspondence between the historical location information and the bandwidth of the historical neighboring cells, as long as the current location of the terminal is currently located. is the place where the terminal has been before, then the terminal can obtain the bandwidth of the adjacent cell corresponding to the terminal at this time from the preset network deployment information. In this way, after acquiring the preset network deployment information, the terminal can determine the bandwidth of the adjacent cell at the current location based on the preset deployment information.

The location information may be a place name, longitude and latitude, or a location represented by a cell coverage, etc., which is not limited in this embodiment of the present application.

It should be noted that in the actual process, due to the operator's network deployment, there will be scenarios with small bandwidth. For example, Band3 and Band8 supported by mobile operators are only 5M, and Band5 supported by telecom operators is only 3M and 5M. When the terminal uses a cell with small and large bandwidth for service processing, due to the small bandwidth, the number of resources allocated to the terminal by the wireless network is small, which leads to the terminal performing service processing or service data transmission on the allocated resources or frequency bands. There is a transmission delay and a stall phenomenon occurs. Therefore, in this embodiment of the present application, it is determined whether a neighboring cell is a cell with a small bandwidth according to the user's motion track, that is, the current location information, and some different handover processing is performed for such a cell with a small bandwidth.

S103. When the current connection is normal and the bandwidth of the adjacent cell satisfies the preset lower bandwidth range, increase the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter by a preset offset to obtain the adjusted measurement parameter.

S104 , based on the adjustment of the measurement parameters, determine whether to report a measurement report, and the measurement report is used for the source base station to make a handover decision.

After the terminal obtains the measurement parameters and the bandwidth of the adjacent cell, when the current connection is normal and the adjacent cell is a small bandwidth cell (which meets the preset bandwidth lower limit range), it triggers and reports the event corresponding to the inter-frequency cell in the measurement parameter. The threshold value of the event-triggered report is adjusted by adding a preset offset to the threshold value of the event-triggered report, so as to obtain the adjusted measurement parameters.

The preset broadband lower limit range is a bandwidth range of small bandwidth, for example, 3M-5M, and the preset broadband lower limit range may be a continuous range value or at least one value, which is not limited in this embodiment of the present application.

It should be noted that, in this embodiment of the present application, the premise that the terminal can delay switching to a cell with a small bandwidth is that the connection status of the terminal's current cell is normal enough to continue supporting the terminal's service and data transmission. That is to say, before adjusting the measurement parameters, the terminal needs to perform the following processes:

S109. Detect the operation of the business data, and obtain the operation information.

S110. When the operation information indicates that the service data transmission is normal, it is detected that the current connection is normal.

S111. When the operation information indicates that the service data transmission is abnormal, detect that the current connection is abnormal.

The terminal tests the connection status of the service data server on the user side, and tests parameters (operation information) such as PING or packet loss rate, that is, detects the operation state of the service data, thereby obtaining the operation information. The terminal can know whether the service data can be transmitted normally through the operation information, and then determine whether the current connection status is normal, that is, when the operation information indicates that the service data transmission is normal, the terminal detects that the current connection is normal (enough to support the current service processing); When the operation information indicates that the service data transmission is abnormal, the terminal detects that the current connection is abnormal (not enough to support the current service processing). When the current connection is normal, the terminal can increase the difficulty of reporting the measurement report and delay the handover. When the current connection is abnormal, the terminal performs the existing handover process to realize cell handover.

It should be noted that when the terminal receives the measurement configuration information, it starts to measure, but the terminal increases the threshold for the decision threshold of the event triggering the reporting of the measurement report, which increases the difficulty of reporting the measurement report, so as to avoid the terminal switching to a small bandwidth. When a cell performs service data transmission, a jam occurs.

Here, the handover requires the terminal (UE) to report the measurement result (ie, the measurement report). The reporting can be divided into periodic reporting and event-triggered reporting. The periodic reporting is configured by the base station, and the terminal can directly report the measurement results. In the embodiment of the present application, with regard to the manner of event-triggered reporting, the event-triggered reporting is further divided into events of the same frequency system, events of different frequency systems, and events of different systems. The measurement configuration message carries the relevant parameters of the event-triggered reporting. details as follows:

A1: The source cell is better than a certain threshold; this event can be used to close the measurement of some cells;

A2: The source cell is worse than a certain threshold; this event can be used to start the measurement of some cells, because handover and other operations may occur after this event occurs;

A3: The neighbor cell is better than the source cell by a certain threshold;

A4: The neighboring cell is better than a certain threshold;

A5: The source cell is worse than a certain threshold and the neighboring cell is better than a certain threshold;

B1: The quality of adjacent cells in different systems is higher than a certain threshold;

B2: The quality of the source cell is lower than a certain threshold and the quality of the neighboring cells of the different system is higher than a certain threshold.

In the embodiment of the present invention, the event triggering reporting that triggers the terminal to perform inter-frequency measurement may be an A3 event, an A4 event, or an A5 event.

It should be noted that, in this embodiment of the present application, for the LTE system, the handover, inter-frequency measurement start or stop threshold, and transmission mode conversion are all performed by relying on the information in the RRC Connection Reconfiguration signaling. Test the level of the source cell and neighboring cells to make a judgment, and send a measurement report when the conditions are met. Different events will send different measurement reports, each measurement report has one and only one MeasId, and one MeasId corresponds to one event. For example, MeasId1 corresponds to the same frequency A3, MeasId14 corresponds to the 4-3 redirection, MeasId15 corresponds to the different frequency A1 event, MeasId7 corresponds to the different frequency A2 event, MeasId14 corresponds to the different frequency A3 event, MeasId13 corresponds to the different frequency A5 event, and MeasId9 corresponds to the different frequency MR intensity. Neighborhood reports, etc. Here, after the terminal obtains and reports the measurement report, it obtains the RRC Connection Reconfiguration (handover instruction) that issues the handover command, and the handover instruction carries the Physical Cell Identifier (PCI, Physical Cell Identifier) of the target cell. However, if the terminal does not get the measurement report, it does not perform cell handover first.

The following takes the A3 event as an example to describe the adjustment of the measurement parameters.

Trigger of event A3, that is, the quality of the neighboring cell is higher than a certain offset value of the serving cell.

The decision formula of A3, that is, the event trigger condition is Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off, where Mn is the measurement result of the adjacent cell, Ofn is the specific frequency offset of the frequency of the adjacent cell, and Ocn is the adjacent cell The specific cell offset of , Ms is the measurement result of the serving cell, Ofs is the specific frequency offset of the serving cell, Ocs is the specific cell offset of the serving cell, Hys is the event A3 hysteresis parameter, and Off is the event A3 offset parameter.

In the embodiment of the present application, Ofs+Ocs+Off-Ofn-Ocn+Hys or Ofn+Ocn-Hys-Ofs-Ocs-Off is the threshold value of the A3 event (corresponding to the threshold value of event-triggered reporting). The terminal adds a preset offset custom offset on the basis of the above threshold value to improve the difficulty of triggering the A3 event, and obtains the adjusted adjustment measurement parameters (the threshold value in which the preset offset is added amount of custom offset).

In this embodiment of the present application, the preset offset is a positive number.

After the threshold value of the event-triggered report is increased by the preset offset, the terminal can judge whether to report the measurement report according to the new threshold value, that is, adjust the measurement parameters, and the measurement report is used for the source base station The handover decision is made. The process of the terminal judging whether to report the measurement report is the process of judging whether the event triggering condition is satisfied.

Further, after S101 and before S104, a cell handover method provided by the present application may further include: S105. as follows:

S105. Based on the neighbor cell information, perform neighbor cell measurement to obtain measurement information of the neighbor cell.

In the process of event-triggered reporting, the terminal needs to use the neighbor cell measurement results. Therefore, before the judgment, the terminal has performed neighbor cell measurement based on the neighbor cell information, and obtained the measurement information of the neighbor cell (neighbor cell measurement). result), use the neighboring cell measurement results to perform event-triggered reporting.

As shown in FIG. 3 , based on the implementation of S105, the process of S104 may include: S1041-S1043. as follows:

S1041. Determine whether the event triggering condition is satisfied according to the measurement information of the adjacent cell and the adjustment of the measurement parameter.

S1042. When the event trigger condition is met, send a measurement report to the source base station to implement cell handover.

S1043. When the event triggering condition is not met, continue to perform service data transmission in the current cell.

The terminal can judge whether the event triggering condition corresponding to the event is satisfied based on the measurement information of the neighboring cell and the adjustment measurement parameters, for example, Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off corresponding to the A3 event. In this way, when the event triggering condition is met, the terminal sends a measurement report to the source base station for the source base station to make a cell handover decision to implement cell handover. When the event trigger condition is not met, the terminal continues to transmit service data in the current cell. Since the previous terminal increases the difficulty of event-triggered reporting, the terminal may fail to meet the event-triggered condition with a high probability, so that the terminal continues to transmit service data in the current cell, avoiding the phenomenon of freezing when switching to a cell with a small bandwidth.

It should be noted that some of the event triggering conditions require the measurement result of the current cell and the measurement result of the neighboring cell, and some event triggers only need the measurement result of the neighboring cell. Therefore, the terminal can decide whether to use the current cell or not for different events. The measurement result is used to further realize the determination of the event trigger condition, which is not limited in this embodiment of the present application.

It can be understood that when the terminal is moving, the terminal transmits service data in the current cell, and the network side device (base station) triggers the handover process, because the terminal can still have enough services in the current cell after receiving the measurement configuration message. Under the premise of data processing (that is, the current connection is normal), when judging whether the neighboring cell belongs to a cell with a small bandwidth (a bandwidth that meets the bandwidth within the preset bandwidth lower limit), the value of the decision threshold (which contains Adjust the measurement parameters), increase the difficulty of the event-triggered reporting decision, so that the measurement report may be delayed and reported to the base station side, which can achieve the process of delaying the cell handover, thus avoiding the occurrence of cell handover to cells with small bandwidth. The delay can improve the real-time performance of data transmission when the current cell can support service data, thereby improving the performance of the terminal.

Embodiment 2

Based on the same inventive concept of Embodiment 1, as shown in FIG. 4 , the present application provides a terminal 1 , and the terminal 1 may include:

a receiving unit 10, configured to receive a measurement configuration message sent by a source base station corresponding to the current cell when the current cell performs service data transmission; the measurement configuration message carries neighbor cell information and measurement parameters;

A determining unit 11, configured to determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on preset network deployment information;

The setting unit 12 is used to increase the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter by a preset offset when the current connection is normal and the bandwidth of the adjacent cell satisfies the preset broadband lower limit range Shift amount, get adjusted measurement parameters;

The judgment unit 13 is configured to judge whether to generate a measurement report based on the adjusted measurement parameter, where the measurement report is used for the source base station to make a handover decision.

In some embodiments of the present application, the terminal 1 further includes: an acquisition unit 14 .

The acquiring unit 14 is configured to acquire historical measurement records and historical location information before receiving the measurement configuration message sent by the source base station corresponding to the current cell; and parse out the historical measurement records from the historical measurement records. the bandwidth of the historical neighboring cell corresponding to the location information; and the corresponding relationship between the historical location information and the bandwidth of the historical neighboring cell as the preset network deployment information.

In some embodiments of the present application, the determining unit 11 is specifically configured to obtain current location information; obtain the bandwidth of the adjacent cell corresponding to the current location information from the preset network deployment information.

In some embodiments of the present application, the terminal 1 further includes: a measurement unit 15 .

The measurement unit 15 is configured to, after receiving the measurement configuration message sent by the source base station corresponding to the current cell, perform the neighbor cell information based on the neighbor cell information before making the handover decision based on the adjusted measurement parameters. cell measurement to obtain measurement information of neighboring cells.

In some embodiments of the present application, the terminal 1 further includes: a sending unit 16 and a service unit 17 .

The judging unit 13 is specifically configured to judge whether the event triggering condition is satisfied according to the measurement information of the adjacent cell and the adjusted measurement parameter.

The sending unit 16 is configured to send the measurement report to the source base station when the event trigger condition is satisfied, so as to implement cell handover.

The service unit 17 is configured to continue to perform service data transmission in the current cell when the event triggering condition is not satisfied.

In some embodiments of the present application, the terminal 1 further includes: a detection unit 18 .

The detection unit 18 is configured to detect the operation of the service data before the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset, and obtain the operation information; and When the operation information indicates that the service data transmission is normal, it is determined that the current connection is normal; and when the operation information indicates that the service data transmission is abnormal, it is determined that the current connection is abnormal.

It should be noted that the terminal 1 in this embodiment of the present application may be the same as the terminal device 120 in FIG. 1 .

In practical applications, the above determination unit 11, setting unit 12, judgment unit 13, acquisition unit 14, measurement unit 15, service unit 17 and detection unit 18 may be implemented by the processor 19 located on the terminal 1, specifically the central processing unit ( CPU, Central Processing Unit), microprocessor (MPU, Microprocessor Unit), digital signal processor (DSP, Digital Signal Processing) or Field Programmable Gate Array (FPGA, Field Programmable Gate Array), etc. The sending unit 16 can be implemented by a transmitter 110, the receiving unit 10 can be realized by the receiver 111.

Based on this, as shown in FIG. 5 , an embodiment of the present application further provides a terminal, including:

The receiver 111, the transmitter 110, the processor 19, and the storage medium 112 storing the executable instructions of the processor 19, the data received by the receiver 111, and the data transmitted by the transmitter 19, the receiver 111. The transmitter 110 and the storage medium 112 rely on the processor 19 to perform operations through the communication bus 113, and when the instructions are executed by the processor 19, the cell switching method in the first embodiment is implemented.

It should be noted that, in practical application, various components in the terminal are coupled together through the communication bus 113 . It can be understood that the communication bus 113 is used to realize the connection communication between these components. In addition to the data bus, the communication bus 113 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the various buses are labeled as communication bus 113 in FIG. 5 .

It can be understood that when the terminal is moving, the terminal transmits service data in the current cell, and the network side device (base station) triggers the handover process, because the terminal can still have enough services in the current cell after receiving the measurement configuration message. Under the premise of data processing (that is, the current connection is normal), when judging whether the neighboring cell belongs to a cell with a small bandwidth (a bandwidth that meets the bandwidth within the preset bandwidth lower limit), the value of the decision threshold (which contains Adjust the measurement parameters), increase the difficulty of the event-triggered reporting decision, so that the measurement report may be delayed and reported to the base station side, which can achieve the process of delaying the cell handover, thus avoiding the occurrence of cell handover to cells with small bandwidth. The delay can improve the real-time performance of data transmission when the current cell can support service data, thereby improving the performance of the terminal.

An embodiment of the present application provides a computer storage medium storing executable instructions. When the executable instructions are executed by one or more processors, the processors execute the cell handover method in the first embodiment.

Wherein, the computer-readable storage medium may be a magnetic random access memory (ferromagnetic random access memory, FRAM), a read only memory (Read Only Memory, ROM), a programmable read only memory (Programmable Read-Only Memory, PROM), an erasable memory In addition to programmable read-only memory (ErasableProgrammable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory (Flash Memory), magnetic surface memory, optical disks, Or memory such as Compact Disc Read-Only Memory (CD-ROM).

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Claims (14)

1. A cell handover method, comprising: When the current cell performs service data transmission, a measurement configuration message sent by a source base station corresponding to the current cell is received; the measurement configuration message carries neighbor cell information and measurement parameters; Determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on the preset network deployment information; wherein, the preset network deployment information is used to represent the correspondence between the historical location information of the terminal and the bandwidth of the neighboring cell; When the current connection is normal and the bandwidth of the adjacent cell satisfies the preset bandwidth lower limit range, the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset to obtain an adjustment measurement parameter; Based on the adjusted measurement parameters, it is determined whether to report a measurement report, where the measurement report is used for the source base station to make a handover decision. 2. The method according to claim 1, wherein before the receiving a measurement configuration message sent by the source base station corresponding to the current cell, the method further comprises: Obtain historical measurement records and historical location information; Parse out the bandwidth of the historical neighboring cell corresponding to the historical location information from the historical measurement record; The corresponding relationship between the historical location information and the bandwidth of the historical neighboring cells is used as the preset network deployment information. 3. The method according to claim 2, wherein the determining the bandwidth of the neighboring cell corresponding to the neighboring cell information based on preset network deployment information comprises: Get current location information; The bandwidth of the adjacent cell corresponding to the current location information is obtained from the preset network deployment information. 4 . The method according to claim 1 , wherein, after receiving a measurement configuration message sent by a source base station corresponding to the current cell, and before making a handover decision based on the adjusted measurement parameters, the Methods also include: Based on the neighbor cell information, neighbor cell measurement is performed to obtain measurement information of the neighbor cell. 5. The method according to claim 4, wherein the determining whether to report a measurement report based on the adjustment of the measurement parameter comprises: According to the measurement information of the neighboring cell and the adjusted measurement parameter, determine whether the event triggering condition is satisfied; When the event trigger condition is met, send the measurement report to the source base station to implement cell handover; When the event trigger condition is not met, continue to perform service data transmission in the current cell. 6. The method according to claim 1, wherein before the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset, the method further comprises: Detect the operation of business data and obtain operation information; When the operation information indicates that the service data transmission is normal, it is detected that the current connection is normal; When the operation information indicates that the service data transmission is abnormal, it is detected that the current connection is abnormal. 7. A terminal, characterized in that, comprising: a receiving unit, configured to receive a measurement configuration message sent by a source base station corresponding to the current cell when the current cell performs service data transmission; the measurement configuration message carries neighbor cell information and measurement parameters; A determining unit, configured to determine the bandwidth of the neighboring cell corresponding to the neighboring cell information based on preset network deployment information; wherein the preset network deployment information is used to represent the historical location information of the terminal and the relationship between the neighboring cell Correspondence of bandwidth; A setting unit, configured to increase the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter by a preset offset when the current connection is normal and the bandwidth of the adjacent cell satisfies the preset bandwidth lower limit range quantity, get the adjustment measurement parameters; A determination unit, configured to determine whether to generate a measurement report based on the adjusted measurement parameter, where the measurement report is used for the source base station to make a handover determination. 8. The terminal according to claim 7, wherein the terminal further comprises: an acquisition unit; The acquisition unit is configured to acquire historical measurement records and historical location information before receiving the measurement configuration message sent by the source base station corresponding to the current cell; and parse out the historical location information from the historical measurement records. bandwidths of historical neighboring cells corresponding to the information; and using the corresponding relationship between historical location information and bandwidths of historical neighboring cells as the preset network deployment information. 9. The terminal according to claim 8, wherein, The determining unit is specifically configured to acquire current location information; and obtain the bandwidth of the adjacent cell corresponding to the current location information from the preset network deployment information. 10. The terminal according to claim 7, wherein the terminal further comprises: a measuring unit; The measurement unit is configured to, after receiving the measurement configuration message sent by the source base station corresponding to the current cell, perform a neighbor cell based on the neighbor cell information before making a handover decision based on the adjustment of the measurement parameter. measurement to obtain the measurement information of the adjacent cell. 11. The terminal according to claim 10, wherein the terminal further comprises: a sending unit and a service unit; The judging unit is specifically configured to judge whether an event triggering condition is met according to the measurement information of the adjacent cell and the adjusted measurement parameter; the sending unit, configured to send the measurement report to the source base station when the event trigger condition is met, so as to implement cell handover; The service unit is configured to continue to perform service data transmission in the current cell when the event triggering condition is not satisfied. 12. The terminal according to claim 7, wherein the terminal further comprises: a detection unit; The detection unit is configured to detect the operation of the service data before the threshold value of the event-triggered reporting corresponding to the inter-frequency cell in the measurement parameter is increased by a preset offset to obtain operation information; and when the When the operation information indicates that the service data transmission is normal, it is determined that the current connection is normal; and when the operation information indicates that the service data transmission is abnormal, it is determined that the current connection is abnormal. 13. A terminal, characterized in that, comprising: A receiver, a transmitter, a processor, and a storage medium storing instructions executable by the processor, data received by the receiver, and data transmitted by the transmitter, the receiver, the transmitter, and storage The medium relies on the processor to perform operations through the communication bus, and when the instructions are executed by the processor, the cell handover method according to any one of the above claims 1 to 6 is performed. 14. A computer storage medium, wherein executable instructions are stored, and when the executable instructions are executed by one or more processors, the processors execute any one of the claims 1 to 6 The cell handover method described in item.

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