CN112469089A - Cell reselection or switching method, terminal and network equipment - Google Patents

Abstract

The embodiment of the invention provides a cell reselection or handover method, a terminal and network equipment. The method for cell reselection or handover at the terminal side comprises the following steps: detecting the interference condition of a terminal; and performing cell reselection or handover according to the interference condition of the terminal. The scheme of the invention can select a better target cell according to the interference condition of the terminal.

Description

Cell reselection or handover method, terminal and network device

technical field

The present invention relates to the field of communication technologies, and in particular, to a method, a terminal and a network device for cell reselection or handover.

Background technique

In the prior art, a terminal in an idle state selects a camping cell by measuring signal strength and signal quality according to a threshold broadcast by the network, a measurement configuration, and a predefined criterion; the network issues a measurement configuration to the terminal in a connected state, and the network receives a measurement report from the terminal. The signal strength and signal quality of the cell are determined, and the handover judgment is performed, and the handover cell is selected for the terminal.

In the idle state, the network broadcasts the threshold and measurement configuration, so the behavior of all terminals in the cell is consistent, but for some terminals with special capabilities, they may have special consideration for selecting a camping cell.

For example, some terminals that support multiple subscriber identification modules (Subscriber Identification Module, SIM) cards can support multiple SIM cards to work simultaneously when camping on the frequency band where cell 1 is located; On the frequency band, it is impossible to support multiple SIM cards working at the same time. At this time, for such a terminal, the broadcast measurement configuration may be used, which may cause the terminal to be unable to fully use its capabilities and reduce system performance when the terminal is working.

For example, when the terminal supports both cellular mobile communication technology and WIFI technology, the frequency band used by the cellular system and the frequency band used by WIFI may cause serious harmonic and intermodulation interference in the device. A system is not working properly.

For the handover of the connected state, it is also a similar problem. In the prior art, the network sends a measurement configuration to the terminal, and judges whether to perform handover according to the measurement result reported by the terminal. The main basis for the handover judgment is the signal strength and signal quality, and from Factors such as frequency priority and load considered on the network side do not consider issues such as interference coexistence.

SUMMARY OF THE INVENTION

The present invention provides a method, terminal and network equipment for cell reselection or handover. A better target cell can be selected according to the interference situation of the terminal.

In order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following solutions:

A method for cell reselection or handover, applied to a terminal, the method comprising:

Detect the interference situation of the terminal;

According to the interference situation of the terminal, cell reselection or handover is performed.

Optionally, if the terminal is in an idle state, detecting the interference situation of the terminal, including:

Receive broadcast information sent by a network device, where the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold for each cell or frequency, and a priority of the cell or frequency;

The interference situation of the terminal is detected.

Optionally, performing cell reselection according to the interference situation of the terminal, including:

If the terminal has interference, the priority of the cell or frequency that does not cause interference to the terminal is increased;

Cell reselection is performed according to the adjusted priority.

Optionally, if the terminal is in the connected state, detecting the interference of the terminal, including:

Receive a measurement configuration sent by the network device, where the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event;

The interference situation of the terminal is detected.

Optionally, performing cell handover according to the interference situation of the terminal, including:

If the terminal has interference, obtain the measurement result of the cell or frequency that makes the terminal free from interference; and ignore the measurement threshold for enabling non-serving cell measurement;

Send a first measurement result to the network device, where the first measurement result includes: a measurement result of a non-interfering cell or frequency.

Optionally, the method for cell reselection or handover further includes: receiving a target cell fed back by the network device according to the first measurement result, and determining that the target cell is a cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover.

Optionally, if the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

Optionally, the measurement of a measurement cell or a measurement frequency point that is not configured for measurement is started when the terminal detects interference; or, the measurement is started according to a preset event configured by the network device, and the preset event is: When the terminal detects interference, it starts to measure the measurement cell or measurement frequency in the non-measurement configuration.

Optionally, perform cell handover according to the interference situation of the terminal, including:

If no interference occurs to the terminal, and the serving cell satisfies the measurement threshold for enabling non-serving cell measurement, a second measurement result is obtained, and the non-serving cell is the measurement cell or measurement frequency in the measurement configuration;

sending a second measurement result to the network device, where the second measurement result includes a measurement result of the non-serving cell;

Receive the target cell fed back by the network device according to the second measurement result, and determine that the target cell is the cell to be handed over to.

Optionally, the method for cell reselection or handover further includes: receiving a configuration blacklisted cell or frequency sent by a network device, and not measuring the blacklisted cell or frequency.

An embodiment of the present invention also provides a method for cell reselection or handover, which is applied to a network device, and the method includes:

Send broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state to perform cell handover according to the interference situation of the terminal.

Optionally, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if the terminal has interference, receive a first measurement result sent by the terminal, where the first measurement result includes: a measurement result of a cell or frequency that does not cause interference to the terminal;

The target cell fed back according to the first measurement result is sent to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell meets the measurement threshold for enabling non-serving cell measurement, receive a second measurement result sent by the terminal, where the second measurement result includes the non-serving cell measurement. The measurement result of the serving cell.

Optionally, the method for cell reselection or handover further includes: sending, to the terminal, a target cell fed back according to the second measurement result, where the target cell is a cell to which the terminal is to be handed over.

Optionally, the method for cell reselection or handover further includes: sending blacklisted cells or frequencies to the terminal.

The embodiment of the present invention also provides a cell reselection or handover device, applied to a terminal, including:

a processing module, configured to detect the interference situation of the terminal; and perform cell reselection or handover according to the interference situation of the terminal.

Optionally, if the terminal is in an idle state, detecting the interference situation of the terminal includes: receiving broadcast information sent by a network device, where the broadcast information includes at least one of the following: cell information or frequency information, and information about each cell or frequency. The camping threshold and the priority of the cell or frequency; the interference situation of the terminal is detected.

Optionally, performing cell reselection according to the interference situation of the terminal, including: if the terminal has interference, increasing the priority of the cell or frequency that does not cause interference to the terminal; performing cell reselection according to the adjusted priority. select.

Optionally, if the terminal is in a connected state, detecting the interference situation of the terminal includes: receiving a measurement configuration sent by a network device, where the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement report an event; detect the interference situation of the terminal.

Optionally, performing cell handover according to the interference situation of the terminal, including:

If the terminal has interference, obtain the measurement result of the cell or frequency that makes the terminal free from interference; and ignore the measurement threshold for enabling non-serving cell measurement;

Send a first measurement result to the network device, where the first measurement result includes: a measurement result of a non-interfering cell or frequency.

Optionally, the apparatus for cell reselection or handover further includes: a transceiver module, configured to receive a target cell fed back by the network device according to the first measurement result, and determine that the target cell is the cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover.

Optionally, if the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

Optionally, the measurement of a measurement cell or a measurement frequency point that is not configured for measurement is started when the terminal detects interference; or, the measurement is started according to a preset event configured by the network device, and the preset event is: When the terminal detects interference, it starts to measure the measurement cell or measurement frequency in the non-measurement configuration.

Optionally, performing cell handover includes: if no interference occurs to the terminal and the serving cell satisfies a measurement threshold for enabling non-serving cell measurement, the processing module obtains a second measurement result, the non-serving cell for the measurement cell or measurement frequency in the measurement configuration;

The transceiver module sends a second measurement result to the network device, where the second measurement result includes the measurement result of the non-serving cell;

The transceiver module receives the target cell fed back by the network device according to the second measurement result, and determines that the target cell is the cell to be handed over.

Optionally, in the apparatus for cell reselection or handover, the transceiver module is further configured to receive the configured blacklisted cells or frequencies sent by the network device, and not to measure the blacklisted cells or frequencies.

An embodiment of the present invention also provides a terminal, including:

The processor is configured to detect the interference situation of the terminal; and perform cell reselection or handover according to the interference situation of the terminal.

Optionally, if the terminal is in an idle state, detecting the interference situation of the terminal includes: receiving broadcast information sent by a network device, where the broadcast information includes at least one of the following: cell information or frequency information, and information about each cell or frequency. The camping threshold and the priority of the cell or frequency; the interference situation of the terminal is detected.

Optionally, performing cell reselection according to the interference situation of the terminal, including: if the terminal has interference, increasing the priority of the cell or frequency that does not cause interference to the terminal; performing cell reselection according to the adjusted priority. select.

Optionally, if the terminal is in a connected state, detecting the interference situation of the terminal includes: receiving a measurement configuration sent by a network device, where the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement report an event; detect the interference situation of the terminal.

Optionally, performing cell handover according to the interference situation of the terminal, including:

If the terminal has interference, obtain the measurement result of the cell or frequency that makes the terminal free from interference; and ignore the measurement threshold for enabling non-serving cell measurement;

Send a first measurement result to the network device, where the first measurement result includes: a measurement result of a non-interfering cell or frequency.

Optionally, the apparatus for cell reselection or handover further includes: a transceiver, configured to receive a target cell fed back by the network device according to the first measurement result, and determine that the target cell is the cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover.

Optionally, if the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

Optionally, the measurement of a measurement cell or a measurement frequency point that is not configured for measurement is started when the terminal detects interference; or, the measurement is started according to a preset event configured by the network device, and the preset event is: When the terminal detects interference, it starts to measure the measurement cell or measurement frequency in the non-measurement configuration.

Optionally, performing cell handover includes: if no interference occurs to the terminal and the serving cell satisfies a measurement threshold for enabling non-serving cell measurement, the processor obtains a second measurement result, the non-serving cell for the measurement cell or measurement frequency in the measurement configuration;

sending, by the transceiver, a second measurement result to the network device, where the second measurement result includes a measurement result of the non-serving cell;

The transceiver receives the target cell fed back by the network device according to the second measurement result, and determines that the target cell is the cell to be handed over.

Optionally, in the apparatus for cell reselection or handover, the transceiver is further configured to receive the configured blacklisted cells or frequencies sent by the network device, and not to measure the blacklisted cells or frequencies.

The embodiment of the present invention also provides a cell reselection or handover device, which is applied to network equipment, including:

The transceiver module is used to send broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state to perform cell reselection according to the interference situation of the terminal Cell handover.

Optionally, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if the terminal has interference, the transceiver module receives a first measurement result sent by the terminal, where the first measurement result includes: a measurement result of a cell or frequency that does not cause interference to the terminal; the transceiver module The target cell fed back according to the first measurement result is sent to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell meets the measurement threshold for enabling non-serving cell measurement, the transceiver module receives a second measurement result sent by the terminal, the second measurement result. Including the measurement result of the non-serving cell.

Optionally, the transceiver module is further configured to send a target cell fed back according to the second measurement result to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, the transceiver module is further configured to send the blacklisted cells or frequencies to the terminal.

An embodiment of the present invention also provides a network device, including:

A transceiver, used for sending broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state to perform cell reselection according to the interference situation of the terminal Cell handover.

Optionally, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if the terminal has interference, the transceiver receives a first measurement result sent by the terminal, where the first measurement result includes: a measurement result of a cell or frequency that does not cause interference to the terminal; the transceiver module The target cell fed back according to the first measurement result is sent to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell meets the measurement threshold for enabling non-serving cell measurement, the transceiver receives a second measurement result sent by the terminal, the second measurement result Including the measurement result of the non-serving cell.

Optionally, the transceiver is further configured to send to the terminal a target cell fed back according to the second measurement result, where the target cell is a cell to which the terminal is to be handed over.

Optionally, the transceiver is further configured to send the blacklisted cells or frequencies to the terminal.

Embodiments of the present invention also provide a communication device, including: a processor, and a memory storing a computer program, the computer program executing the above-mentioned method when the computer program is run by the processor.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method as described above.

The above-mentioned scheme of the present invention at least includes the following beneficial effects:

In the above solution of the present invention, the interference situation of the terminal is detected; according to the interference situation of the terminal, cell reselection or handover is performed. Thus, a better target cell can be selected according to the interference situation of the terminal.

Description of drawings

1 is a schematic flowchart of a method for cell reselection or handover on the terminal side of the present invention;

2 is a schematic flowchart of a method for cell reselection or handover on the network side of the present invention;

3 is a schematic structural diagram of a module of an apparatus for cell reselection or handover on the terminal side of the present invention;

FIG. 4 is a schematic structural diagram of a terminal of the present invention;

5 is a schematic structural diagram of a module of an apparatus for cell reselection or handover on the network side of the present invention;

FIG. 6 is a schematic structural diagram of a network device of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

As shown in FIG. 1 , an embodiment of the present invention provides a method for cell reselection or handover, which is applied to a terminal, and the method includes:

Step 11, detecting the interference situation of the terminal.

Step 12: Perform cell reselection or handover according to the interference situation of the terminal.

In this embodiment of the present invention, the interference situation of the terminal is detected; and the cell reselection or handover is performed according to the interference situation of the terminal. Thus, a better target cell can be selected according to the interference situation of the terminal.

In an optional embodiment of the present invention, if the terminal is in an idle state, detecting the interference situation of the terminal includes:

Step 111: Receive broadcast information sent by the network device, where the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold for each cell or frequency, and a priority of the cell or frequency

Step 112, detecting the interference situation of the terminal.

Correspondingly, performing cell reselection according to the interference situation of the terminal, including:

Step 211, if the terminal has interference, the priority of the cell or frequency that does not cause interference to the terminal is increased;

Step 212: Perform cell reselection according to the adjusted priority.

In an optional embodiment of the present invention, the method for cell reselection or handover may further include:

Step 13: Cover the priority of the cell or frequency in the received broadcast information with the increased priority of the cell or frequency without interference. During subsequent cell reselection, a cell with a higher priority can be reselected.

In an optional embodiment of the present invention, performing cell reselection according to the interference situation of the terminal may further include:

If there is no interference in the cell or frequency where the terminal is currently camping, it will reselect to the cell where it is currently camping.

The following describes an implementation process for the above-mentioned idle state terminal to perform cell reselection, and the process includes:

Network equipment (such as base station) broadcasts parameters related to cell selection and reselection, including frequency/cell information, the camping threshold of each frequency/cell, and the reselection priority of the frequency;

The terminal receives the broadcast message of the base station and detects whether there is interference (such as harmonic/intermodulation interference). The priority is increased, and the increased priority will cover the reselection priority of the frequency broadcast by the original base station, and the terminal uses the updated frequency priority to perform cell reselection. Further, if the cell without coexistence interference meets the cell camping condition, the cell is reselected.

For example: the terminal is a terminal that supports multiple cards. When the SIM card 1 supported by the terminal works at frequency point A and the SIM card 2 supported by the terminal works at frequency point B, the terminal can work on two SIM cards at the same time; if the SIM card 1 works on frequency point C, it cannot work on 2 SIM cards at the same time. The priority of the base station broadcast frequency point C is 7 (high priority), the priority of frequency point A is 1 (low priority), and the terminal will preferentially camp on frequency point C according to the existing process. The terminal detects that coexistence interference will occur when camping on C and B, and there is no coexistence interference on B and A. In order to avoid coexistence interference, the terminal will increase the priority of frequency A and give priority to camping on frequency A. The increased priority is used for cell reselection.

In this embodiment, the terminal in the idle state detects coexistence interference and determines the cell/frequency without coexistence interference, which will increase the priority of the cell/frequency without coexistence interference for the terminal, and perform cell reselection according to the improved priority.

In an optional embodiment of the present invention, if the terminal is in a connected state, detecting the interference of the cell or frequency where the terminal is currently located, including:

Step 311: Receive a measurement configuration sent by the network device, where the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event;

Step 312, detecting the interference situation of the terminal.

Correspondingly, performing cell handover according to the interference situation of the terminal, including:

Step 411, if the terminal has interference, obtain the measurement result of the cell or frequency that makes the terminal free from interference; and ignore the measurement threshold for enabling non-serving cell measurement;

Step 412: Send a first measurement result to the network device, where the first measurement result includes: a measurement result of a cell or frequency without interference;

Further, the method may further include: Step 413: Receive the target cell fed back by the network device according to the first measurement result, and determine that the target cell is the cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover;

If the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

The measurement of the measurement cell or measurement frequency point in the non-measurement configuration here starts the measurement when the terminal detects interference; or starts the measurement according to a preset event configured by the network device, and the preset event is: the terminal detects When interference occurs, the measurement cell or measurement frequency in the non-measurement configuration is started.

In another implementation, performing cell handover according to the interference situation of the terminal, including:

Step 511, if no interference occurs to the terminal, and the serving cell satisfies the measurement threshold for enabling non-serving cell measurement, a second measurement result is obtained, and the non-serving cell is the measurement cell or the measurement cell in the measurement configuration. frequency;

Step 512: Send a second measurement result to the network device, where the second measurement result includes the measurement result of the non-serving cell;

Step 513: Receive the target cell fed back by the network device according to the second measurement result, and determine that the target cell is the cell to be handed over.

In an optional embodiment of the present invention, the method for cell reselection or handover may further include: receiving a configuration blacklisted cell or frequency sent by a network device, and not measuring the blacklisted cell or frequency.

The following describes an implementation process for the above-mentioned connected terminal to perform cell handover, and the process includes:

The network device (such as the base station) sends the measurement configuration to the terminal, including the measurement frequency, and the measurement threshold (used to enable the measurement of the non-serving cell, that is, the relevant parameters of the serving cell, such as the signal received power RSRP, exceed a measurement threshold here. , the measurement of the non-serving cell is enabled), and the measurement report event (used to determine when to report the measurement result);

The terminal detects the coexistence interference situation, and if no coexistence interference occurs and the current serving cell meets the threshold for enabling non-serving cell measurement, the terminal starts the measurement of the non-serving cell, and the non-serving cell belongs to the measurement frequency in the measurement configuration;

The terminal detects the coexistence interference situation. When the coexistence interference occurs (assuming that the serving cell is at frequency A, frequency A will cause interference when the terminal and WiFi coexist), the terminal starts the measurement of the frequency/cell without coexistence interference, which can be ignored at this time. Enable the threshold value of non-serving cell measurement, and the non-serving cell is not limited to the measurement frequency in the measurement configuration;

In order to minimize the power consumption of the terminal and prevent the terminal from constantly searching and measuring the measurement frequency in the non-measurement configuration, a certain preset event trigger can be adopted. The preset event can be implemented based on the terminal or based on the configuration of the base station. For example, : Based on the terminal implementation: When the terminal detects coexistence interference (interference coexistence problem of multi-SIM card terminal, or interference coexistence problem in the device, etc.) or other problems that need to change the operating frequency point, the terminal starts to measure the non-serving cell and/or Measure measurement frequency points in a non-measurement configuration. Based on base station configuration: the base station adds a configuration of a preset event to the measurement configuration, for example, the preset event is: when the terminal detects coexistence interference, it starts to measure the non-serving cell and/or measure the measurement frequency in the non-measurement configuration.

If the measurement result includes the measurement frequency/cell in the non-measurement configuration, for such measurement results, the terminal needs to report at the same time: frequency information, cell ID or PCI, measurement result; or,

The terminal can also report an indication information, the indication information indicates the target cell that the terminal expects to handover, and this indication information can be reported together with the above measurement result; or,

If the network is configured with a measurement reporting event, and the measurement reporting event is "the terminal detects coexistence interference and can report the measurement result", the terminal reports the measurement result after the coexistence interference occurs. The measurement result here includes the non-measurement configuration in (i) The measurement frequency/cell in can also include all measurement results.

The base station receives the measurement result reported by the terminal, and if it receives the measurement result of the measurement frequency/cell in the measurement configuration that is not in the measurement configuration, it means that the terminal expects the cell to be the target cell for handover; or, if the base station receives the indication information from the terminal, Indicates the target cell that the terminal expects to hand over. The base station may select the target cell for handover for the terminal in consideration of factors such as load and the target cell expected to be handed over by the terminal.

The base station configures the blacklisted frequencies for the terminal, and the terminal does not measure and/or report the frequencies in the blacklisted cells. The blacklisted frequencies may be some dedicated frequencies, and ordinary terminals are not allowed to access; or the blacklisted frequencies are overloaded, and terminals cannot be allowed to access; or the blacklisted frequencies are too low, and the terminal accesses cause interference.

In this embodiment, the terminal in the connected state detects the coexistence interference of the current serving cell, determines the cell/frequency without coexistence interference, measures and reports the cell/frequency without coexistence interference, including frequency information, measurement result, cell ID/PCI, triggers During handover, a better target cell can be selected according to the coexistence interference situation.

As shown in FIG. 2, an embodiment of the present invention further provides a method for cell reselection or handover, which is applied to a network device, and the method includes:

Step 21: Send broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state to perform cell switching according to the interference situation of the terminal .

In an optional embodiment, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if the terminal has interference, receive a first measurement result sent by the terminal, where the first measurement result includes: a measurement result of a cell or frequency that does not cause interference to the terminal;

The target cell fed back according to the first measurement result is sent to the terminal, where the target cell is a cell to which the terminal is to be handed over.

In an optional embodiment, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell meets the measurement threshold for enabling non-serving cell measurement, receive a second measurement result sent by the terminal, where the second measurement result includes the non-serving cell measurement. The measurement result of the serving cell.

In an optional embodiment, the method for cell reselection or handover may further include: sending, to the terminal, a target cell fed back according to the second measurement result, where the target cell is a cell to which the terminal is to be handed over. The terminal does not measure the blacklisted cells or frequencies, thereby saving the power consumption of the terminal.

It should be noted that the method on the network side is a method corresponding to the method on the terminal side shown in FIG. 1 , and the behaviors related to network equipment in the above method embodiments on the terminal side are all applicable to the embodiments of the method on the network side. , can also achieve the same technical effect.

As shown in FIG. 3, an embodiment of the present invention further provides a cell selection apparatus 30, applied to a terminal, including:

The processing module 32 is configured to detect the interference situation of the terminal; and perform cell reselection or handover according to the interference situation of the terminal.

Optionally, the apparatus may further include: a transceiver module 31, if the terminal is in an idle state, detecting the interference situation of the terminal, including: the transceiver module 31 receiving broadcast information sent by a network device, and the broadcast information includes at least one of the following : cell information or frequency information, the camping threshold of each cell or frequency, and the priority of the cell or frequency; detect the interference situation of the terminal.

Optionally, performing cell reselection according to the interference situation of the terminal, including: if the terminal has interference, increasing the priority of the cell or frequency that does not cause interference to the terminal; performing cell reselection according to the adjusted priority. select.

Optionally, if the terminal is in the connected state, detecting the interference situation of the terminal includes: the transceiver module 31 receives a measurement configuration sent by the network device, and the measurement configuration includes at least one of the following: measurement cell or measurement frequency, measurement threshold value and measurement reporting events; detecting the interference of the terminal.

Optionally, performing cell handover according to the interference situation of the terminal, including:

If the terminal has interference, obtain the measurement result of the cell or frequency that makes the terminal free from interference; and ignore the measurement threshold for enabling non-serving cell measurement;

Send a first measurement result to the network device, where the first measurement result includes: a measurement result of a non-interfering cell or frequency.

Optionally, in the apparatus for cell reselection or handover, the transceiver module 31 is configured to receive the target cell fed back by the network device according to the first measurement result, and determine that the target cell is the cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover.

Optionally, if the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

Optionally, the measurement of a measurement cell or a measurement frequency point that is not configured for measurement is started when the terminal detects interference; or, the measurement is started according to a preset event configured by the network device, and the preset event is: When the terminal detects interference, it starts to measure the measurement cell or measurement frequency in the non-measurement configuration.

Optionally, performing cell handover includes: if no interference occurs to the terminal and the serving cell satisfies the measurement threshold for enabling non-serving cell measurement, the processing module 32 obtains a second measurement result, the non-serving cell The cell is the measurement cell or the measurement frequency in the measurement configuration;

The transceiver module 31 sends a second measurement result to the network device, where the second measurement result includes the measurement result of the non-serving cell;

The transceiver module 31 receives the target cell fed back by the network device according to the second measurement result, and determines that the target cell is the cell to be handed over to.

Optionally, in the apparatus for cell reselection or handover, the transceiver module 31 is further configured to receive the configured blacklisted cells or frequencies sent by the network device, and not to measure the blacklisted cells or frequencies.

It should be noted that the device is a device corresponding to the method shown in FIG. 1 above, and all implementations in the above method embodiments are applicable to the embodiments of the device, and the same technical effects can also be achieved.

As shown in FIG. 4, an embodiment of the present invention further provides a terminal 40, including:

The processor 42 is configured to detect the interference situation of the terminal; and perform cell reselection or handover according to the interference situation of the terminal.

Optionally, the terminal further includes a transceiver 41. If the terminal is in an idle state, detecting the interference of the terminal includes: the transceiver 41 receives broadcast information sent by a network device, and the broadcast information includes at least one of the following: cell information Or frequency information, the camping threshold of each cell or frequency, and the priority of the cell or frequency; the processor 42 detects the interference situation of the terminal.

Optionally, performing cell reselection according to the interference situation of the terminal, including: if the terminal has interference, increasing the priority of the cell or frequency that does not cause interference to the terminal; performing cell reselection according to the adjusted priority. select.

Optionally, if the terminal is in the connected state, detecting the interference situation of the terminal includes: the transceiver 41 receives a measurement configuration sent by the network device, where the measurement configuration includes at least one of the following: measurement cell or measurement frequency, measurement threshold value and measurement reporting events; the processor 42 detects the interference situation of the terminal.

Optionally, performing cell handover according to the interference situation of the terminal, including:

If the terminal has interference, the processor obtains the measurement result of the cell or frequency that makes the terminal free from interference; and ignores the measurement threshold for enabling non-serving cell measurement;

The transceiver sends a first measurement result to the network device, where the first measurement result includes: a measurement result of a cell or frequency without interference.

Optionally, the transceiver in the apparatus for cell reselection or handover is further configured to receive the target cell fed back by the network device according to the first measurement result, and determine that the target cell is the cell to be handed over.

Optionally, if the first measurement result includes the measurement cell or measurement frequency in the non-measurement configuration, the first measurement result further includes: the measurement cell or measurement frequency information in the non-measurement configuration and the measurement cell or measurement frequency information in the non-measurement configuration. The identity of the measuring cell or the PCI of the physical cell identity; or, the indication information indicating the target cell that the terminal expects to handover.

Optionally, if the measurement configuration includes a measurement reporting event, and the measurement reporting event is when the terminal detects interference and can report a measurement result, the first measurement result further includes: the measurement cell or the measurement frequency in the non-measurement configuration.

Optionally, the measurement of a measurement cell or a measurement frequency point that is not configured for measurement is started when the terminal detects interference; or, the measurement is started according to a preset event configured by the network device, and the preset event is: When the terminal detects interference, it starts to measure the measurement cell or measurement frequency in the non-measurement configuration.

Optionally, performing cell handover includes: if no interference occurs to the terminal and the serving cell satisfies a measurement threshold for enabling non-serving cell measurement, the processor obtains a second measurement result, the non-serving cell for the measurement cell or measurement frequency in the measurement configuration;

sending, by the transceiver, a second measurement result to the network device, where the second measurement result includes a measurement result of the non-serving cell;

The transceiver 41 receives the target cell fed back by the network device according to the second measurement result, and determines that the target cell is the cell to be handed over to.

Optionally, in the apparatus for cell reselection or handover, the transceiver 41 is further configured to receive the configured blacklisted cells or frequencies sent by the network device, and not to measure the blacklisted cells or frequencies.

It should be noted that the terminal is a terminal corresponding to the method shown in FIG. 1 above, and all implementations in the above method embodiments are applicable to the embodiments of the apparatus, and the same technical effect can also be achieved. The terminal may further include: a memory 43; the transceiver 41 and the processor 42, and the transceiver 41 and the memory 43 may be connected through a bus interface, the function of the transceiver 41 may be implemented by the processor 42, and the processor The functions of 42 may also be implemented by the transceiver 41 .

As shown in FIG. 5, an embodiment of the present invention further provides a cell selection apparatus 50, which is applied to network equipment, including:

The transceiver module 51 is used for sending broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state according to the interference situation of the terminal. Perform cell handover.

Optionally, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if there is interference in the terminal, the transceiver module 51 receives a first measurement result sent by the terminal, where the first measurement result includes: a measurement result of a cell or frequency that does not cause interference to the terminal; The module 51 sends the target cell fed back according to the first measurement result to the terminal, where the target cell is the cell to which the terminal is to be handed over.

Optionally, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell satisfies the measurement threshold for enabling non-serving cell measurement, the transceiver module 51 receives the second measurement result sent by the terminal, and the second measurement The results include measurement results of the non-serving cell.

Optionally, the transceiver module 51 is further configured to send a target cell fed back according to the second measurement result to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, the transceiver module 51 is further configured to send the blacklisted cells or frequencies to the terminal.

It should be noted that the device is a device corresponding to the method shown in FIG. 2 above, and all implementations in the above method embodiments are applicable to the embodiments of the device, and can also achieve the same technical effect. The device may also include The processing module 52 is used for processing the data sent and received by the transceiver module.

As shown in FIG. 6, an embodiment of the present invention further provides a network device 60, including:

The transceiver 61 is used for sending broadcast information or measurement configuration to the terminal; the broadcast information is used for the terminal in the idle state to perform cell reselection according to the interference situation of the terminal, and the measurement configuration is used for the terminal in the connected state according to the interference situation of the terminal Perform cell handover.

Optionally, if the terminal is in an idle state, the broadcast information includes at least one of the following: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency.

Optionally, if there is interference in the terminal, the transceiver 61 receives a first measurement result sent by the terminal, where the first measurement result includes: measurement results of cells or frequencies that do not cause interference to the terminal; The module sends the target cell fed back according to the first measurement result to the terminal, where the target cell is the cell to which the terminal is to be handed over.

Optionally, if the terminal is in a connected state, the measurement configuration includes at least one of the following: a measurement cell or a measurement frequency, a measurement threshold, and a measurement reporting event.

Optionally, if no interference occurs to the terminal and the serving cell satisfies the measurement threshold for enabling non-serving cell measurement, the transceiver receives a second measurement result sent by the terminal, the second measurement result Including the measurement result of the non-serving cell.

Optionally, the transceiver 61 is further configured to send a target cell fed back according to the second measurement result to the terminal, where the target cell is a cell to which the terminal is to be handed over.

Optionally, the transceiver 61 is further configured to send the blacklisted cells or frequencies to the terminal.

It should be noted that the network device is a network device corresponding to the method shown in FIG. 1 , and all implementations in the above method embodiments are applicable to the embodiments of the apparatus, and the same technical effects can also be achieved. The network device may further include: a processor 62, a memory 63; the transceiver 61 and the processor 62, and the transceiver 61 and the memory 63 can be connected through a bus interface, and the function of the transceiver 61 can be controlled by the processor The functions of the processor 62 may also be implemented by the transceiver 61 .

An embodiment of the present invention further provides a communication device, including: a processor, and a memory storing a computer program, and when the computer program is run by the processor, the method described in FIG. 1 or FIG. 2 is executed.

Embodiments of the present invention also provide a computer-readable storage medium, including instructions, which, when the instructions are executed by a computer, cause the computer to execute the method described in FIG. 1 or FIG. 2 above.

The method for selecting a camping cell and switching a cell for a terminal provided by the above-mentioned embodiments of the present invention can select a better target cell according to the coexistence interference situation.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

In addition, it should be pointed out that, in the apparatus and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These disaggregations and/or recombinations should be considered as equivalents of the present invention. Also, the steps of performing the above-mentioned series of processes can naturally be performed in chronological order in the order described, but need not necessarily be performed in chronological order, and some steps can be performed in parallel or independently of each other. Those of ordinary skill in the art can understand that all or any steps or components of the method and device of the present invention can be implemented in any computing device (including a processor, storage medium, etc.) or a network of computing devices in hardware, firmware, etc. , software or a combination thereof, which can be realized by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

Accordingly, the objects of the present invention can also be achieved by running a program or set of programs on any computing device. The computing device may be a known general purpose device. Therefore, the object of the present invention can also be achieved only by providing a program product containing program code for implementing the method or apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be pointed out that, in the device and method of the present invention, obviously, each component or each step can be decomposed and/or recombined. These disaggregations and/or recombinations should be considered as equivalents of the present invention. Also, the steps of executing the above-described series of processes can naturally be executed in chronological order in the order described, but need not necessarily be executed in chronological order. Certain steps may be performed in parallel or independently of each other.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (24)

1. A method for cell reselection or handover, the method being applied to a terminal and comprising:

detecting the interference condition of a terminal;

and performing cell reselection or handover according to the interference condition of the terminal.

2. The method of claim 1, wherein detecting the interference condition of the terminal if the terminal is in an idle state comprises:

receiving broadcast information sent by a network device, wherein the broadcast information comprises at least one of the following items: cell information or frequency information, a camping threshold of each cell or frequency, and a priority of the cell or frequency;

and detecting the interference condition of the terminal.

3. The method of claim 2, wherein performing cell reselection according to the interference condition of the terminal comprises:

if the terminal has interference, the priority of a cell or frequency which does not cause the interference to the terminal is increased;

and performing cell reselection according to the adjusted priority.

4. The method of claim 1, wherein detecting the interference condition of the terminal if the terminal is in a connected state comprises:

receiving a measurement configuration sent by a network device, the measurement configuration comprising at least one of: measuring a cell or measuring frequency, a measuring threshold value and a measuring reporting event;

and detecting the interference condition of the terminal.

5. The method of cell reselection or handover according to claim 4, wherein performing cell handover according to the interference condition of the terminal comprises:

if the terminal has interference, obtaining a cell or frequency measurement result which enables the terminal to have no interference; ignoring the measurement threshold value for starting the non-service cell measurement;

sending a first measurement result to the network device, the first measurement result comprising: cell or frequency measurements without interference.

6. The method of cell reselection or handover as claimed in claim 5, further comprising:

and receiving the target cell fed back by the network equipment according to the first measurement result, and determining the target cell as the cell to be switched to.

7. The method of cell reselection or handover according to claim 5,

if the first measurement result includes a measurement cell or a measurement frequency in a non-measurement configuration, the first measurement result further includes: non-measurement configured measurement cell or measurement frequency information and an identifier of the non-measurement configured measurement cell or a Physical Cell Identifier (PCI); or, indication information indicating a target cell to which the terminal desires handover.

8. The method of cell reselection or handover according to claim 5,

if the measurement configuration includes a measurement reporting event, and the measurement reporting event is a measurement result that a terminal detects interference and can report, the first measurement result further includes: a measurement cell or a measurement frequency in a non-measurement configuration.

9. The method of cell reselection or handover according to claim 8, wherein the measurement of the non-measurement configured measurement cell or measurement frequency point is started when the terminal detects interference; or,

according to a preset event configured by the network equipment, starting measurement, wherein the preset event is as follows: the terminal starts measuring the measurement cell or the measurement frequency in the non-measurement configuration when detecting the interference.

10. The method of cell reselection or handover according to claim 4, wherein the cell handover is performed according to the interference condition of the terminal, and the method comprises:

if the terminal is not interfered, and the serving cell meets a measurement threshold value for starting non-serving cell measurement, obtaining a second measurement result, wherein the non-serving cell is a measurement cell or a measurement frequency in the measurement configuration;

sending a second measurement result to the network device, the second measurement result comprising a measurement result of the non-serving cell;

and receiving the target cell fed back by the network equipment according to the second measurement result, and determining the target cell as the cell to be switched to.

11. The method of cell reselection or handover as claimed in claim 7, further comprising:

and receiving the configured blacklist cell or frequency sent by the network equipment, and not measuring the blacklist cell or frequency.

12. A method for cell reselection or handover, applied to a network device, the method comprising:

sending broadcast information or measurement configuration to a terminal; the broadcast information is used for the idle terminal to perform cell reselection according to the interference condition of the terminal, and the measurement configuration is used for the connected terminal to perform cell switching according to the interference condition of the terminal.

13. The method of claim 12, wherein if the terminal is in an idle state, the broadcast information comprises at least one of the following: cell information or frequency information, a camping threshold for each cell or frequency, and a priority of the cell or frequency.

14. The method of claim 12, wherein if the terminal has interference, receiving a first measurement result sent by the terminal, and wherein the first measurement result comprises: measurements of cells or frequencies that do not cause interference to the terminal;

and sending the target cell fed back according to the first measurement result to the terminal, wherein the target cell is a cell to which the terminal is to be switched.

15. The method of claim 12, wherein if the terminal is in a connected state, the measurement configuration comprises at least one of: measuring cell or measuring frequency, measuring threshold value and measuring reporting event.

16. The method of claim 15, wherein if the terminal is interference-free and the serving cell meets a measurement threshold for starting non-serving cell measurement, receiving a second measurement result sent by the terminal, where the second measurement result comprises a measurement result of the non-serving cell.

17. The method of cell reselection or handover as claimed in claim 16, further comprising:

and sending the target cell fed back according to the second measurement result to the terminal, wherein the target cell is a cell to which the terminal is to be switched.

18. The method of cell reselection or handover as claimed in claim 12, further comprising:

and sending the blacklisted cell or frequency to the terminal.

19. An apparatus for cell reselection or handover, applied to a terminal, comprising:

the processing module is used for detecting the interference condition of the terminal; and performing cell reselection or handover according to the interference condition of the terminal.

20. A terminal, comprising:

a processor for detecting an interference situation of a terminal; and performing cell reselection or handover according to the interference condition of the terminal.

21. An apparatus for cell reselection or handover, applied to a network device, comprising:

the receiving and sending module is used for sending broadcast information or measurement configuration to the terminal; the broadcast information is used for the idle terminal to perform cell reselection according to the interference condition of the terminal, and the measurement configuration is used for the connected terminal to perform cell switching according to the interference condition of the terminal.

22. A network device, comprising:

a transceiver for transmitting broadcast information or measurement configuration to a terminal; the broadcast information is used for the idle terminal to perform cell reselection according to the interference condition of the terminal, and the measurement configuration is used for the connected terminal to perform cell switching according to the interference condition of the terminal.

23. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 11, or the method of any of claims 12 to 18.

24. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 11, or the method of any one of claims 12 to 18.

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