CN111436092B

CN111436092B - Method, terminal and network equipment for selecting resident cell in unlicensed frequency band

Info

Publication number: CN111436092B
Application number: CN201910026933.0A
Authority: CN
Inventors: 张晓然; 胡南; 李男
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2023-05-09
Anticipated expiration: 2039-01-11
Also published as: CN111436092A

Abstract

The invention provides a method, a terminal and network side equipment for selecting a resident cell in an unlicensed frequency band, wherein the method comprises the following steps: acquiring channel occupation information on an unlicensed frequency band; selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information; in the embodiment of the invention, the terminal takes the channel occupation information as a reference factor in the process of selecting the resident cell in the unlicensed frequency band, so that the terminal in the idle state or the deactivated state selects a more suitable cell for resident, the accuracy of resident cell selection is improved, and the cell resident efficiency is improved.

Description

Method, terminal and network equipment for selecting resident cell in unlicensed frequency band

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a network side device for selecting a residence cell in an unlicensed frequency band.

Background

The unlicensed frequency band is accessed in a competitive mode, a plurality of terminals and base stations can preempt channels on the same frequency resource, blind idleness of the channels is needed to be monitored before each transmission, the idle of the channels is confirmed, and the terminals and the base stations working on the unlicensed frequency band can transmit data.

In the prior art, the idle state and the deactivated state only consider the signal strength and the signal quality (such as Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ)) of a cell when the terminal selects a resident cell; in the process of selecting a resident cell by a terminal, determining a certain cell as the resident cell according to the signal strength and the signal quality of the cell; however, if the cell signal is strong, but because the channel occupancy rate where the cell signal is located is very high, the base station and the terminal are difficult to rob to the opportunity to send data, the cell is not suitable for residence; therefore, the existing method for determining the camping cell is not accurate enough.

Disclosure of Invention

The embodiment of the invention aims to provide a method, a terminal and network side equipment for selecting a resident cell in an unlicensed frequency band, so as to solve the problem of inaccurate cell resident of the unlicensed frequency band in the prior art.

In order to solve the above-mentioned problems, an embodiment of the present invention provides a method for selecting a camping cell in an unlicensed band, which is applied to a terminal, and includes:

acquiring channel occupation information on an unlicensed frequency band;

and selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information.

The obtaining the channel occupation information on the unlicensed frequency band includes:

And performing Received Signal Strength Indication (RSSI) measurement on a cell on the unlicensed frequency band to acquire channel occupation information on the unlicensed frequency band, wherein the channel occupation information comprises: at least one of RSSI, channel occupancy, and channel idle rate.

receiving channel occupation information on an unlicensed frequency band sent by network side equipment, wherein the channel occupation information comprises: at least one of RSSI, channel occupancy, and channel idle rate.

Wherein the method further comprises:

receiving first threshold information for cell residence sent by network side equipment, wherein the first threshold information comprises at least one of the following information:

RSSI threshold value;

a channel occupancy threshold value and a first RSSI value for evaluating the channel occupancy;

a channel idle rate threshold value and a second RSSI value for evaluating the channel idle rate;

the selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information comprises the following steps:

and selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information and the first threshold information.

Wherein the method further comprises:

Receiving load information of a cell on an unlicensed frequency band sent by network side equipment;

the selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information and the first threshold information comprises the following steps:

and selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information, the first threshold information and the load information.

Wherein the method further comprises:

receiving configuration information of RSSI measurement sent by network side equipment;

the configuration information of the RSSI measurement includes at least one of the following information:

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

resource pool information for RSSI measurements, the resource pool information comprising: at least one of resource pool identification information, bandwidth of the resource pool, number of sub-channels contained in the resource pool, sub-channel bandwidth contained in the resource pool, and frequency domain location of the resource pool;

resource pool measurement configuration information of RSSI measurement, wherein the resource pool measurement configuration information is used for indicating resources to be measured in the resource pool;

the performing the measurement of the received signal strength indication RSSI for the cell on the unlicensed band to obtain the channel occupation information on the unlicensed band includes:

And measuring according to the configuration information of the RSSI measurement, and obtaining the channel occupation information on the unlicensed frequency band.

Wherein the method further comprises:

receiving second threshold information sent by network side equipment, wherein the second threshold information comprises: a range value of signal power;

the method further comprises the steps of:

and carrying out cell reselection according to at least one of the second threshold information and the channel occupation information on the unlicensed frequency band and the cell measurement result on the unlicensed frequency band.

The embodiment of the invention also provides a method for selecting the resident cell in the unlicensed frequency band, which is applied to the network side equipment and comprises the following steps:

transmitting channel occupation information on an unlicensed frequency band to a terminal; or alternatively, the process may be performed,

transmitting first threshold information for cell residence to a terminal, wherein the first threshold information comprises at least one of the following information:

a received signal strength indication RSSI threshold;

the channel idle rate threshold value and a second RSSI value for evaluating the channel idle rate.

Wherein the method further comprises:

and sending the load information of the cells on the unlicensed frequency band to the terminal.

Wherein the method further comprises:

transmitting configuration information of RSSI measurement to a terminal;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

and the resource pool measurement configuration information of RSSI measurement is used for indicating resources to be measured in the resource pool.

Wherein the method further comprises:

and sending second threshold information to the terminal, wherein the second threshold information comprises: range value of signal power.

The embodiment of the invention also provides a terminal, which comprises a processor and a transceiver, wherein the processor is used for executing the following processes:

acquiring channel occupation information on an unlicensed frequency band;

Wherein the processor is further configured to:

Wherein the transceiver is configured to:

Wherein the transceiver is further configured to:

RSSI threshold value;

the processor is further configured to:

Wherein the transceiver is further configured to:

the processor is further configured to:

Wherein the transceiver is further configured to:

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

the processor is further configured to:

Wherein the transceiver is further configured to:

receiving second threshold information for cell reselection sent by network side equipment, wherein the second threshold information comprises: a range value of signal power;

the processor is further configured to:

The embodiment of the invention also provides a device for selecting a resident cell in an unlicensed frequency band, which is applied to a terminal and comprises the following steps:

The occupation determining module is used for acquiring channel occupation information on an unauthorized frequency band;

and the cell selection module is used for selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information.

The embodiment of the invention also provides network side equipment, which comprises a processor and a transceiver, wherein the processor is used for controlling the transceiver to execute the following processes:

a received signal strength indication RSSI threshold;

Wherein the transceiver is further configured to:

transmitting configuration information of RSSI measurement to a terminal;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

Wherein the transceiver is further configured to:

The embodiment of the invention also provides a device for selecting a resident cell in an unlicensed frequency band, which is applied to network side equipment and comprises the following steps:

the transmitting module is used for transmitting the channel occupation information on the unlicensed frequency band to the terminal; or, the method is used for sending first threshold information for cell residence to a terminal, and the first threshold information comprises at least one of the following information:

a received signal strength indication RSSI threshold;

The embodiment of the invention also provides a computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps in the method of selecting a camping cell in an unlicensed frequency band as described above.

The technical scheme of the invention has at least the following beneficial effects:

in the cell residence method, the terminal and the network side equipment of the unlicensed frequency band, the terminal takes the channel occupation information as a reference factor in the process of selecting residence cells of the unlicensed frequency band, so that the terminal in an idle state or a deactivated state selects more suitable cells for residence, the accuracy of residence cell selection is improved, and the cell residence efficiency is improved.

Drawings

Fig. 1 is a flowchart of a method for selecting a camping cell in an unlicensed band according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a second step of a method for selecting a camping cell in an unlicensed band according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an apparatus for selecting a camping cell in an unlicensed band according to an embodiment of the present invention;

Fig. 5 shows a schematic structural diagram of a network side device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a second embodiment of an apparatus for selecting a camping cell in an unlicensed band.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The embodiment of the invention provides a method for selecting a resident cell in an unlicensed frequency band, which is applied to a terminal and comprises the following steps:

and 11, acquiring channel occupation information on an unlicensed frequency band.

And step 12, selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information.

In this step, the cells on the unlicensed band include: a serving cell of a terminal and neighbor cells of the serving cell.

In the above embodiment of the present invention, the channel occupation information on the unlicensed band may indicate the blind idleness of the channel thereof; in the process of selecting the resident cell by the terminal, the embodiment of the invention takes the blind idle of the channel into consideration because the unlicensed frequency band is accessed in a competitive mode, namely, takes the blind idle of the channel as a reference factor of cell resident, thereby enabling the terminal in an idle state or a deactivated state to select a more suitable cell for resident.

Further, in the above embodiment of the present invention, step 12 includes:

firstly judging whether a cell measurement result on an unlicensed frequency band meets a residence condition (the residence condition is the same as that in the prior art and is not described in detail here); then selecting a resident cell according to the channel occupation information aiming at the cell meeting the resident condition.

Or, modifying the existing residence condition, and adding channel occupation information in the existing residence condition, for example, the modified residence condition not only includes cell signal strength, signal quality, but also includes channel occupation information.

Optionally, the cell measurement result at least includes: cell signal strength and signal quality, e.g., reference signal received power RSRP and reference signal received quality RSRQ.

In short, the idle state or the deactivated state terminal comprehensively selects the resident cell according to the cell signal strength, the cell signal quality and the channel occupation information, so that the accuracy of selecting the resident cell is improved.

The method for using the channel occupation information by the terminal comprises the following steps: the terminal performs measurement and judges whether the cell measurement result meets the cell residence condition, and the terminal sorts the measurement results of all the cells meeting the residence condition according to a certain rule, for example, the cell with highest power is ranked highest; the terminal determines a resident cell according to a certain rule, for example, the terminal resides in a cell with highest ranking; when there are a plurality of cells with highest ranking, the method is resided in the cell with the lowest RSSI or the cell with the lowest channel occupancy rate or the cell with the highest channel idle rate.

As an embodiment, step 11 includes:

and performing Received Signal Strength Indication (RSSI) measurement on a cell on the unlicensed frequency band, and determining channel occupation information on the unlicensed frequency band, wherein the channel occupation information comprises: at least one of RSSI, channel occupancy, and channel idle rate.

As another embodiment, step 11 includes:

Specifically, the channel occupation information may be the channel occupation rate of one channel or a plurality of (sub) channels; the channel occupancy may be characterized by a percentage (e.g., a percentage of the number of samples above a certain RSSI threshold) or the channel occupancy may be identified by several levels (e.g., 0-5, lowest level 0, indicating the most idle channel, highest level 5, indicating the most busy channel). In this case, channel occupancy information needs to be exchanged between cells, for example, between NR base stations through an Xn interface or through a core network.

The embodiment of the invention provides at least two schemes, namely:

the first scheme is that a terminal measures channel occupation information and selects a resident cell according to the measured channel occupation information;

Scheme II: the network side equipment sends the channel occupation information, and the terminal selects the resident cell according to the channel occupation information sent by the network side equipment.

For the first scheme, the method provided by the embodiment of the invention further comprises the following steps:

RSSI threshold value;

a channel occupancy threshold value (in percent) and a first RSSI value (dBm) for evaluating the channel occupancy;

a channel idle rate threshold value (in percent) and a second RSSI value (dBm) for evaluating the channel idle rate;

channel occupancy level and a plurality of RSSI values (dBm) for evaluating the channel occupancy level.

Accordingly, step 12 includes:

Preferably, the network side device broadcasts the first threshold information of the own cell and the neighboring cell in the system message.

The RSSI threshold value represents an RSSI value required by residing in the cell or residing in the frequency point; the RSSI threshold value may be the total received signal power within a certain measurement bandwidth or the total received signal power per RE (Resource Element) is averaged.

The using method of the terminal to the RSSI threshold value comprises the following steps: the terminal receives first threshold information in the broadcast message, compares the RSSI measurement result with an RSSI threshold value, considers the cell to be a cell which can reside or be a reselection candidate after meeting a certain condition, and considers the cell to be unable to reside or be a reselection candidate cell otherwise. For example, when "RSSI measured by the terminal" is less than "RSSI threshold value", it is considered that the cell may camp on or may be a reselection candidate cell; or when "RSSI measured by the terminal" is less than "RSSI threshold + offsets", it is considered that the cell may camp on or may be a reselection candidate cell.

Preferably, the channel occupancy threshold value represents a percentage of samples higher than the first RSSI value, and the lower the channel occupancy measured by the terminal, the more idle the channel. The first RSSI value may be the total received signal power over a certain measurement bandwidth or the total received signal power per RE is averaged.

The method for using the channel occupancy threshold value and the first RSSI value by the terminal comprises the following steps: the terminal receives first threshold information in the broadcast message, the terminal performs RSSI measurement, calculates the channel occupancy rate according to the first RSSI value, compares the calculated channel occupancy rate with a channel occupancy rate threshold value, considers the cell to be a cell which can reside or be a reselection candidate after meeting a certain condition, and considers the cell to be unable to reside or be a reselection candidate when not meeting a certain condition. For example, when the "channel occupancy measured by the terminal" is less than the "channel occupancy threshold", it is considered that the cell may camp on or may be a reselection candidate cell.

Preferably, the channel idle rate threshold value represents a percentage of the number of samples lower than the second RSSI value, and the higher the channel idle rate measured by the terminal, the more idle the channel. The second RSSI value may be the total received signal power over a certain measurement bandwidth or the total received signal power per RE is averaged.

The method for using the channel idle rate threshold value and the second RSSI value by the terminal comprises the following steps: the terminal receives first threshold information in the broadcast message, the terminal performs RSSI measurement, calculates the channel idle rate according to the second RSSI value, compares the calculated channel idle rate with a channel idle rate threshold value, considers the cell to be a cell which can reside or be a reselection candidate after meeting a certain condition, and considers the cell to be unable to reside or be a reselection candidate when not meeting a certain condition. For example, when the "channel idle rate measured by the terminal" is greater than the "channel idle rate threshold value", it is considered that the cell may camp on or may be a reselection candidate cell.

It should be noted that, in the above embodiment of the present invention, each threshold value in the first threshold information may be one or more, and if one threshold value is included, the terminal only receives one threshold value; if there are multiple, the terminal may receive multiple thresholds.

For example, different types of terminals correspond to different thresholds, for example, the thresholds corresponding to the internet of things terminal, the internet of vehicles terminal and the common handheld terminal are different. The terminal selects a threshold matched with the own type to judge whether the terminal resides in the cell; as another example, different network slices (network slices) correspond to different thresholds. The terminal selects a threshold of a network slice matched with own service requirements to judge whether the network slice resides in the cell; for another example, the different service classes correspond to different thresholds, e.g. the terminal determines its own service class, and selects a threshold of the service class matching its own service class to determine whether to camp on the cell.

Further, for the first aspect, the method provided by the embodiment of the present invention further includes:

receiving load information of a cell on an unlicensed frequency band sent by network side equipment; the interaction load information between cells is required. For example, the NR base stations exchange load information via an Xn interface or exchange load information via a core network.

Correspondingly, the selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information and the first threshold information comprises the following steps:

In short, the terminal in idle state or deactivated state not only can comprehensively select the resident cell according to the cell signal strength, the cell signal quality and the channel occupation information, but also can refer to the load information of the cell, thereby improving the accuracy of selecting the resident cell.

For example, the terminal selects a cell with the smallest RSSI value or the lowest channel occupancy rate or the highest channel idle rate in cells with the same load as the resident cell; for another example, the terminal selects a cell with the lowest load among the cells with the lowest RSSI value or the lowest channel occupancy or the highest channel idle rate as the camping cell.

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

resource pool information (resource pool) of RSSI measurements, the resource pool information comprising: at least one of resource pool identification information, bandwidth of the resource pool, number of sub-channels contained in the resource pool, sub-channel bandwidth contained in the resource pool (used for indirectly determining the bandwidth of the resource pool), and frequency domain location of the resource pool (e.g., offset from an anchor point frequency, which may be a cell SSB center frequency point); content requiring interaction resource pool information between cells, such as interaction between NR base stations over an Xn interface or interaction over a core network;

correspondingly, performing received signal strength indication RSSI measurement on a cell on an unlicensed frequency band, and obtaining channel occupation information on the unlicensed frequency band, including:

and performing RSSI measurement according to the configuration information of the RSSI measurement to acquire the channel occupation information on the unlicensed frequency band.

In the embodiment of the present invention, the frequency domain resource and bandwidth of the RSSI measurement in the configuration information of the RSSI measurement may be specifically any one of the following:

the frequency domain resource and bandwidth of the RSSI measurement are the same as the initial BWP (initial partial bandwidth) of the cell; in this case, the resource location and bandwidth of the interaction initial BWP between cells are required, for example, interaction between NR base stations through an Xn interface or interaction through a core network;

the frequency domain resource and bandwidth of the RSSI measurements are the same as the RMSI (remaining minimum system information ) of the cell; in this case, the resource location and bandwidth of the RMSI are required to be interacted between cells, for example, interaction between NR base stations through an Xn interface or interaction through a core network;

the frequency domain resource and bandwidth of RSSI measurement are the same as the carrier bandwidth of the cell; in this case, the carrier locations and bandwidths of the interaction cells between cells are required, for example, the interaction between NR base stations via an Xn interface or via a core network.

If the network device does not configure the frequency domain resource and bandwidth of the RSSI measurement, the terminal adopts a default configuration, for example, the same as the synchronization signal block SSB of the cell.

In the embodiment of the present invention, the time domain resources of the RSSI measurement in the configuration information of the RSSI measurement include: the time slots of the RSSI measurements and/or the symbols of the RSSI measurements.

If the network side device does not configure the time domain resources of the RSSI measurements, a default configuration is employed, e.g., the same as SMTC (SSB measurement timing configuration ) of the cell, or a fixed 5ms. In this case time domain resources for inter-cell interaction RSSI measurements are required, e.g. interaction between NR base stations via an Xn interface or interaction via the core network.

In the embodiment of the invention, the resource pool measurement configuration information of RSSI measurement in the configuration information of RSSI measurement is used for indicating the terminal to measure in the whole resource pool or indicating the terminal to measure each sub-channel in the resource pool. The content of configuration information is measured by the interaction resource pool between cells, for example, the interaction between NR base stations through an Xn interface or through a core network.

The terminal uses the resource pool information and the resource pool measurement configuration information: the terminal receives the system information, and the terminal measures the resources in the indicated resource pool, for example, measures the RSSI and/or the channel occupancy rate and/or the channel idle rate for the whole resource pool, or measures the RSSI and/or the channel occupancy rate and/or the channel idle rate for each sub-channel in the resource pool.

Further, for the first and second aspects, the method provided in the foregoing embodiment of the present invention further includes:

receiving second threshold information for cell reselection sent by network side equipment, wherein the second threshold information comprises: a range value of signal power; for example, cells within this range value may be the highest ranked candidate cell, with the units of the range value being dB.

The method further comprises the steps of:

The terminal uses the second threshold information: the terminal receives the second threshold information, and the terminal performs cell measurement and judges whether a cell measurement result meets a cell residence condition; the terminal sorts the measurement results of all the cells meeting the residence condition according to a certain rule, for example, the cell with the highest power is ranked highest; and the terminal judges that the cell meeting the second threshold value, for example, the difference between the power of the cell and the power of the cell with the highest ranking is smaller than the second threshold value, and the cell meets the second threshold value. If a plurality of cells meet the second threshold value, determining to reselect the cells according to a certain rule, for example, reselecting the cells according to the channel quality occupation information on the unlicensed frequency band: reselecting a cell with the smallest RSSI value or the lowest channel occupancy rate or the highest channel idle rate, or reselecting a cell with the lowest load, or reselecting a cell with the smallest RSSI value or the lowest channel occupancy rate or the highest channel idle rate in the cells with the same load, or reselecting a cell with the lowest load in the cell with the smallest RSSI value or the lowest channel occupancy rate or the same channel idle rate; if the plurality of channels occupy the same information in the cells meeting the second threshold value, the cell with the highest ranking is reselected.

In summary, in the above embodiment of the present invention, the terminal uses the channel occupation information as a reference factor in the process of selecting the cell to be camped in the unlicensed frequency band, so that the terminal in the idle state or the deactivated state selects a more suitable cell to be camped, thereby improving the accuracy of the cell to be camped and the efficiency of cell camping.

As shown in fig. 2, the embodiment of the present invention further provides a method for selecting a camping cell in an unlicensed band, which is applied to a network side device, and includes:

a received signal strength indication RSSI threshold;

In the embodiment of the invention, the cell on the unlicensed frequency band comprises: a serving cell of a terminal and neighbor cells of the serving cell.

The embodiment of the invention provides at least two schemes, namely:

Preferably, the network side device broadcasts first threshold information of the own cell and the neighboring cell in a system message, wherein the first threshold information is residence threshold information.

transmitting load information of cells on an unlicensed frequency band to a terminal; the interaction load information between cells is required. For example, the NR base stations interact with load information via an Xn interface or interact via a core network.

In short, the terminal in idle state or deactivated state not only can comprehensively select the resident cell according to the cell signal strength, the cell signal quality and the channel occupation information, but also can refer to the load information of the cell, thereby improving the accuracy of the determination method of the resident cell.

transmitting configuration information of RSSI measurement to a terminal;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

and sending second threshold information for cell reselection to the terminal, wherein the second threshold information comprises: range value of signal power. For example, cells that are indicated to be within this range value may be considered as the highest ranked candidate cells, the unit of range value being dB.

As shown in fig. 3, an embodiment of the present invention further provides a terminal, including a processor 300 and a transceiver 310, the terminal further including a user interface 320, the processor 300 being configured to perform the following procedures:

acquiring channel occupation information on an unlicensed frequency band;

Optionally, in the foregoing embodiment of the present invention, the processor 300 is further configured to:

Optionally, in the above embodiment of the present invention, the transceiver 300 is configured to:

Optionally, in the above embodiment of the present invention, the transceiver 310 is further configured to:

RSSI threshold value;

the processor is further configured to:

Frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

the processor is further configured to:

It should be noted that, the terminal provided in the embodiment of the present invention is a terminal capable of executing the method for selecting a residence cell in an unlicensed frequency band, so that all embodiments for selecting a residence cell in an unlicensed frequency band are applicable to the terminal, and the same or similar beneficial effects can be achieved.

As shown in fig. 4, the embodiment of the present invention further provides an apparatus for selecting a camping cell in an unlicensed band, which is applied to a terminal, and includes:

an occupation determining module 41, configured to obtain channel occupation information on an unlicensed frequency band;

and the cell selection module 42 is configured to select a camping cell from cells on an unlicensed frequency band according to the channel occupation information.

Optionally, in the foregoing embodiment of the present invention, the cell selection module includes:

the first measurement submodule is used for judging whether a cell measurement result on an unlicensed frequency band meets a cell residence condition or not;

and the first selecting sub-module is used for selecting a resident cell according to the channel occupation information aiming at the cell meeting the cell resident condition.

Optionally, in the foregoing embodiment of the present invention, the occupancy determining module includes:

the second measurement submodule is used for carrying out Received Signal Strength Indication (RSSI) measurement on a cell on an unlicensed frequency band and obtaining channel occupation information on the unlicensed frequency band, wherein the channel occupation information comprises: at least one of RSSI, channel occupancy, and channel idle rate.

the first receiving sub-module is configured to receive channel occupation information on an unlicensed frequency band sent by a network side device, where the channel occupation information includes: at least one of RSSI, channel occupancy, and channel idle rate.

Optionally, in the foregoing embodiment of the present invention, the apparatus further includes:

the second receiving module is configured to receive first threshold information for cell residence sent by a network side device, where the first threshold information includes at least one of the following information:

RSSI threshold value;

the cell selection module includes:

and the second selection sub-module is used for selecting a resident cell from the cells on the unlicensed frequency band according to the channel occupation information and the first threshold information.

the third receiving module is used for receiving the load information of the cell on the unlicensed frequency band sent by the network side equipment;

The second selection sub-module is further to:

a fourth receiving sub-module, configured to receive configuration information of RSSI measurement sent by the network side device;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

the second measurement submodule is further configured to:

the method further comprises the steps of:

and a fifth receiving module, configured to perform cell reselection according to at least one of the second threshold information and the channel occupation information on the unlicensed frequency band, and a cell measurement result on the unlicensed frequency band.

It should be noted that, the device for selecting a camping cell in an unlicensed band provided by the embodiment of the present invention is a device capable of executing the method for selecting a camping cell in an unlicensed band, so all embodiments of the method for selecting a camping cell in an unlicensed band are applicable to the device, and the same or similar beneficial effects can be achieved.

As shown in fig. 5, the embodiment of the present invention further provides a network side device, which includes a processor 500 and a transceiver 510, where the processor 500 is configured to control the transceiver 510 to perform the following procedures:

a received signal strength indication RSSI threshold;

Optionally, in the foregoing embodiment of the present invention, the transceiver 510 is further configured to:

transmitting configuration information of RSSI measurement to a terminal;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

It should be noted that, the network side device provided in the embodiment of the present invention is a network side device capable of executing the method for selecting a residence cell in an unlicensed band, and all embodiments of the method for selecting a residence cell in an unlicensed band are applicable to the network side device, and the same or similar beneficial effects can be achieved.

As shown in fig. 6, an embodiment of the present invention further provides a cell selection apparatus for an unlicensed band, which is applied to a network side device, and includes:

a transmitting module 61, configured to transmit channel occupation information on an unlicensed band to a terminal; or, the method is used for sending first threshold information for cell residence to a terminal, and the first threshold information comprises at least one of the following information:

A received signal strength indication RSSI threshold;

and the first sending module is used for sending the load information of the cell on the unlicensed frequency band to the terminal.

the second sending module is used for sending the configuration information of the RSSI measurement to the terminal;

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

The third sending module is configured to send second threshold information to the terminal, where the second threshold information includes: range value of signal power.

It should be noted that, the device for selecting a cell in an unlicensed band provided by the embodiment of the present invention is a device capable of performing cell selection in the unlicensed band, and all embodiments of the method for selecting a cell in an unlicensed band are applicable to the device, and the same or similar beneficial effects can be achieved.

The embodiment of the present invention also provides a computer readable storage medium, on which a computer program is stored, where the program when executed by a processor implements each process in the embodiment of the method for selecting a cell in an unlicensed band as described above, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely 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-readable storage media (including, but not limited to, magnetic disk storage and optical storage, etc.) having computer-usable program code embodied therein.

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 application. It will be understood that each flow and/or block of 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 a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks.

These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A method for selecting a resident cell in an unlicensed frequency band, which is applied to a terminal, and is characterized by comprising the following steps:

acquiring channel occupation information on an unlicensed frequency band; the channel occupancy information includes: at least one of a channel occupancy rate and a channel idle rate;

selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information;

wherein the method further comprises:

selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information and the first threshold information;

and performing Received Signal Strength Indication (RSSI) measurement on the cells on the unlicensed frequency band, and calculating the channel occupancy rate according to the first RSSI value and/or calculating the channel idle rate according to the second RSSI value to acquire the channel occupancy information on the unlicensed frequency band.

2. The method according to claim 1, wherein the method further comprises:

3. The method according to claim 1, wherein the method further comprises:

frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

4. The method according to claim 1, wherein the method further comprises:

the method further comprises the steps of:

5. A terminal comprising a processor and a transceiver, wherein the processor is configured to perform the following:

wherein the transceiver is further configured to:

the processor is further configured to:

wherein the processor is further configured to:

6. The terminal of claim 5, wherein the transceiver is further configured to:

the processor is further configured to:

7. The terminal of claim 5, wherein the transceiver is further configured to:

Frequency domain resources and/or bandwidths measured by RRSI;

time domain resources for RSSI measurement;

the processor is further configured to:

8. The terminal of claim 5, wherein the transceiver is further configured to:

the processor is further configured to:

9. An apparatus for selecting a camping cell in an unlicensed band, which is applied to a terminal, comprising:

The occupation determining module is used for acquiring channel occupation information on an unauthorized frequency band; the channel occupancy information includes: at least one of a channel occupancy rate and a channel idle rate;

the cell selection module is used for selecting a resident cell from cells on an unlicensed frequency band according to the channel occupation information;

wherein the apparatus further comprises:

the first receiving module is configured to receive first threshold information for cell residence sent by a network side device, where the first threshold information includes at least one of the following information:

the cell selection module is further configured to:

the occupancy determination module is further to:

10. A computer readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the method of unlicensed band selection of a camping cell according to any one of claims 1-4.