CN111601345A

CN111601345A - Cell reselection method and device and electronic equipment

Info

Publication number: CN111601345A
Application number: CN201910314489.2A
Authority: CN
Inventors: 杨飞; 鲍炜; 柯小婉; 刘辉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-08-28
Also published as: WO2020211741A1

Abstract

The embodiment of the application provides a cell reselection method, a cell reselection device and electronic equipment, wherein the cell reselection method comprises the following steps: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information. The cell reselection method, the cell reselection device and the electronic equipment can enable the user equipment to obtain the service of the second radio access network in time.

Description

Cell reselection method and device and electronic equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for cell reselection, and an electronic device.

Background

A fifth Generation mobile communication technology (referred to as a 5G network architecture) defined by the 3rd Generation Partnership Project (3 GPP) protocol includes a Non-standby (Non-independent network) architecture in which a UE (User Equipment) can be simultaneously connected to a base station of a first radio access network and a base station of a second radio access network, the base station of the first radio access network can be, for example, an eNB (evolved node b), and the base station of the second radio access network can be, for example, a gNB (5G base station), so that the UE can simultaneously acquire services of the first radio access network and services of the second radio access network.

In the application process, when the UE supporting NSA is powered on, a cell is searched for camping. The UE can know whether the network supports dual connectivity through an upper layer indication-r15 (upper layer indication-r 15) of an SIB2 in an SIB (system information Block) message, where the dual connectivity includes a connection between the UE and a first radio access network and a connection between the UE and a second radio access network, for example, a connection between the UE and a 4G radio access network and a connection between the UE and a 5G NR (new air interface). If the network does not support dual connectivity, the UE may camp on a non-dual connectivity cell to obtain service of the first radio access network before camping on a dual connectivity enabled cell to obtain service of the second radio access network through cell reselection.

Based on this, the inventor of the present invention finds that, when the UE performs reselection, the neighboring cell information received by the UE usually only includes information such as a frequency point, a reselection threshold, and a reselection priority of the neighboring cell, but does not include indication information whether the frequency point of the neighboring cell and/or the neighboring cell supports dual connectivity. If the reselected neighboring cell does not support dual connectivity, the UE needs to perform cell reselection again, so that the UE cannot acquire the service of the second radio access network in time.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

An object of the embodiments of the present application is to provide a cell reselection method, an apparatus, and an electronic device, which enable a user equipment to obtain a service of a second radio access network in time under a non-independent network architecture.

To solve the above technical problem, embodiments of the present application are achieved by the following aspects.

In a first aspect, an embodiment of the present application provides a cell reselection method, which is applied to a terminal device, and includes: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information.

In a second aspect, an embodiment of the present application provides a cell reselection method, which is applied to a network device, and includes: and sending dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

In a third aspect, an embodiment of the present application provides an apparatus for cell reselection, including: a receiving module, configured to receive dual connectivity indication information, where the dual connectivity indication information includes indication information used to indicate whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes a connection between the terminal device and a first radio access network and a connection between the terminal device and a second radio access network; and the selection module is used for reselecting the cell according to the double-connection indication information.

In a fourth aspect, an embodiment of the present application provides an apparatus for cell reselection, including: the sending module is configured to send dual connectivity indication information, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network.

In a fifth aspect, an embodiment of the present application provides an electronic device, including: a memory, a processor and computer-executable instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps of the method of the first or second aspect as described above.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium for storing computer-executable instructions, which, when executed by a processor, implement the steps of the method according to the first or second aspect.

In the embodiment of the present application, dual connectivity indication information is received, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes a connection between the terminal device and a first radio access network and a connection between the terminal device and a second radio access network; and cell reselection is carried out according to the dual-connection indication information, so that the UE can timely know whether the pilot frequency carrier frequency point supports dual-connection and/or an adjacent cell supporting dual-connection, and then the UE can select the pilot frequency carrier frequency point and/or the adjacent cell supporting dual-connection, and the UE can rapidly acquire the service of the second wireless access network under the non-independent network architecture.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic flow chart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a method for cell reselection according to an embodiment of the present application;

fig. 3 is another schematic flow chart of a cell reselection method according to an embodiment of the present application

Fig. 4 is a schematic flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 5 is a schematic flowchart illustrating a method for cell reselection according to an embodiment of the present application;

fig. 6 is a schematic flowchart illustrating another cell reselection method according to an embodiment of the present application

Fig. 7 is a schematic structural diagram of an apparatus for cell reselection according to an embodiment of the present application;

fig. 8 is a schematic structural diagram illustrating another apparatus for cell reselection according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating a hardware structure of an electronic device that executes a method for cell reselection according to an embodiment of the present disclosure;

fig. 10 is a schematic diagram illustrating a hardware structure of another electronic device that performs a method for cell reselection according to an embodiment of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 shows a flowchart of a method for cell reselection, which may be performed by an electronic device, for example, a terminal device. In other words, the method may be performed by software or hardware installed in the terminal device. As shown, the method may include the following steps.

S110: dual connectivity indication information is received.

The UE resides in a current cell and receives dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

The current cell may be a non-dual connection cell, and the current cell may include any one of an LTE (Long Term Evolution) cell, a GSM (Global System for Mobile Communications) cell, a WCDMA (Wideband Code Division Multiple Access) cell, and a CDMA (Code Division Multiple Access) cell.

Taking LTE cells as an example for illustration, the dual connectivity indication information may include indication information (e.g., EN-DCSupported) for indicating whether the inter-frequency carrier frequency point supports dual connectivity, and/or an identifier of a neighboring cell (e.g., CellList) supporting dual connectivity. The EN-DCSupported TRUE indicates that the pilot frequency carrier frequency point supports double connection, and conversely, the EN-DCSupported FALSE indicates that the pilot frequency carrier frequency point does not support double connection. CellList lists the identities of neighbor cells that support dual connectivity.

S120: and performing cell reselection according to the dual-connection indication information.

And if the current resident cell of the UE meets the reselection condition, selecting a cell supporting the dual connection for residing according to the dual connection indication information, or selecting a frequency point supporting the dual connection and residing the cell in the frequency point.

Therefore, in the method for cell reselection provided by the embodiment of the present application, dual connectivity indication information is received, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and cell reselection is carried out according to the dual-connection indication information, so that the UE can timely know whether the pilot frequency carrier frequency point supports dual-connection and/or an adjacent cell supporting dual-connection, and then the UE can select the pilot frequency carrier frequency point and/or the adjacent cell supporting dual-connection, and the UE can rapidly acquire the service of the second wireless access network under the non-independent network architecture.

Fig. 2 shows another flowchart of a method for cell reselection according to an embodiment of the present application, which may be executed by an electronic device, for example, a terminal device. In other words, the method may be performed by software or hardware installed in the terminal device. As shown, the method may include the following steps.

S210: dual connectivity indication information is received.

The UE resides in a current cell and receives dual connectivity indication information, where the dual connectivity indication information may include indication information for indicating whether a pilot frequency carrier frequency point supports dual connectivity.

Taking the LTE cell as an example for explanation, the dual connectivity indication information may include indication information used for indicating whether the pilot frequency point supports dual connectivity, for example, EN-DCSupported, where EN-DCSupported TRUE indicates that the pilot frequency point supports dual connectivity, and conversely, EN-DCSupported FALSE indicates that the pilot frequency point does not support dual connectivity.

In one possible implementation, this step may include receiving a system information block SIB including the dual connectivity indication information.

The SIB is used to provide parameters required for cell camping, reselection, link establishment, and the like for the UE, where the SIB5 carries dual connectivity indication information for inter-frequency cell reselection, and the dual connectivity indication information may be contained in the SIB 5. The dual connectivity indication information carried in SIB5 is for example:

frequency point information 1:

dl-CarrierFreq 100,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported TRUE,

cellReselectionPriority 5,

neighCellConfig'01'B

wherein, the dual connection indication information EN-DCSupported of the frequency point information 1 indicates TRUE, which indicates that the pilot frequency carrier frequency point 1 supports dual connection.

S220: and determining a pilot frequency point supporting dual connection according to the indication information which is used for indicating whether the pilot frequency point supports dual connection in the dual connection indication information.

For example, according to EN-DCSupported in the dual connectivity indication information, a pilot frequency carrier frequency point supporting dual connectivity, for example, the pilot frequency carrier frequency point 1, is determined.

S230: residing in an adjacent cell in the pilot frequency carrier frequency point supporting the double connection.

And the UE measures the pilot frequency carrier frequency point 1, and if the pilot frequency carrier frequency point 1 meets the reselection condition, the UE resides in an adjacent cell in the pilot frequency carrier frequency point 1 supporting double connection.

Therefore, in the method for cell reselection provided by the embodiment of the present application, a pilot frequency carrier frequency point supporting dual connectivity is determined according to the indication information used for indicating whether the pilot frequency carrier frequency point supports dual connectivity in the dual connectivity indication information; and the neighboring cell residing in the pilot frequency carrier frequency point supporting the dual-connection can enable the UE to timely know whether the pilot frequency carrier frequency point supports the dual-connection or not, so that the UE can select the pilot frequency carrier frequency point supporting the dual-connection, and the UE can rapidly acquire the service of the second wireless access network under the non-independent network architecture.

In another possible implementation manner, step S210 may include receiving a radio resource control RRC connection release message (RRCConnectionRelease message), where the RRCConnectionRelease message includes the dual connectivity indication information.

Optionally, the dual connectivity indication information may be listed in the idlemobificitycontrolinfo IE together with other information of the frequency point, for example:

frequency point information 2:

CarrierFreq 100,

CellReselectionPriority 5,

EN-DCSupported TRUE,

wherein, the dual connection indication information EN-DCSupported indicates TRUE, which indicates that the frequency point 2 supports dual connection.

In addition, in steps S220 to S230, a pilot frequency carrier frequency point supporting dual connectivity, for example, the pilot frequency carrier frequency point 2, may be determined according to EN-DCSupported in the dual connectivity indication information, the pilot frequency carrier frequency point 2 is measured, and if the pilot frequency carrier frequency point 2 meets the reselection condition, the pilot frequency carrier frequency point resides in an adjacent cell in the pilot frequency carrier frequency point 2 without measuring other frequency points, so as to quickly obtain the service of the second radio access network.

The dual connection includes a connection of the terminal device and the first radio access network, and a connection of the terminal device and the second radio access network, optionally, the second radio access network may include a fifth generation mobile communication 5G access network, and the first radio access network may include a fourth generation mobile communication 4G access network.

In one possible implementation, the dual connectivity may comprise EN-DC, i.e. dual connectivity of a 4G radio access network with a 5G NR, or NE-DC, i.e. dual connectivity of a 5G NR with a 4G radio access network.

Fig. 3 shows another flowchart of a method for cell reselection according to an embodiment of the present application, which may be executed by an electronic device, for example, a terminal device. In other words, the method may be performed by software or hardware installed in the terminal device. As shown, the method may include the following steps.

S310: dual connectivity indication information is received.

frequency point information 1:

dl-CarrierFreq 100,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported TRUE,

cellReselectionPriority 5,

neighCellConfig'01'B

the dual connection indication information EN-DCSupported of the frequency point information 1 indicates TRUE, which indicates that the inter-frequency carrier frequency point 1 supports dual connection, and the cellreselection priority indicates that the priority of the frequency point 1 is 5.

Frequency point information 3:

dl-CarrierFreq 300,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported FALSE,

cellReselectionPriority 5,

neighCellConfig'01'B

the dual connection indication information EN-DCSupported of the frequency point information 3 indicates FALSE, which indicates that the inter-frequency carrier frequency point 3 does not support dual connection, and the cellreselection priority indicates that the priority of the frequency point 3 is 5.

S320: and determining one pilot frequency carrier frequency point supporting the dual connection from a plurality of pilot frequency carrier frequency points with the same priority according to the indication information which is used for indicating whether the pilot frequency carrier frequency point supports the dual connection in the dual connection indication information.

For example, one pilot frequency carrier frequency point supporting dual connectivity, such as the above pilot frequency carrier frequency point 1, is determined among frequency points 1 and 3 having the same priority.

S330: residing in an adjacent cell in the pilot frequency carrier frequency point supporting the double connection.

And the UE measures the pilot frequency carrier frequency point 1 supporting double connection, and resides in an adjacent cell in the pilot frequency carrier frequency point 1 if the pilot frequency carrier frequency point 1 meets the reselection condition.

Therefore, according to the method for cell reselection provided by the embodiment of the present application, one pilot frequency carrier frequency point supporting dual connectivity is determined among a plurality of pilot frequency carrier frequency points having the same priority, according to the indication information in the dual connectivity indication information, which is used for indicating whether the pilot frequency carrier frequency point supports dual connectivity; the neighboring cell residing in the pilot frequency carrier frequency point supporting the dual connectivity enables the UE to know whether the pilot frequency carrier frequency point supports the dual connectivity or not in time, so that the UE can select the pilot frequency carrier frequency point supporting the dual connectivity from the pilot frequency carrier frequency points with the same priority, thereby enabling the UE to rapidly acquire the service of the second radio access network under the non-independent network architecture.

In another possible implementation manner, step S310 may include receiving a radio resource control RRC connection release message (RRCConnectionRelease message), where the RRCConnectionRelease message includes the dual connectivity indication information.

frequency point information 2:

CarrierFreq 100,

CellReselectionPriority 5,

EN-DCSupported TRUE,

the dual connection indication information EN-DCSupported indicates TRUE, which indicates that frequency point 2 supports dual connection, and cellreselection priority indicates that the priority of frequency point 2 is 5.

Frequency point information 4:

CarrierFreq 300,

CellReselectionPriority 5,

EN-DCSupported FALSE,

wherein, the dual connection indication information EN-DCSupported indicates FALSE, which indicates that the frequency point 4 does not support dual connection, and cellreselection priority indicates that the priority of the frequency point 2 is 5.

In addition, in steps S320 to S330, a pilot frequency carrier frequency point supporting dual connectivity, for example, frequency point 2, may be determined in multiple pilot frequency carrier frequency points 2 and 4 with the same priority, and measured frequency point 2, and if frequency point 2 meets the reselection condition, the pilot frequency carrier frequency point resides in an adjacent cell in pilot frequency carrier frequency point 2.

The dual connectivity includes a connection between the terminal device and a first radio access network and a connection between the terminal device and a second radio access network, optionally, the second radio access network may include a fifth generation mobile communication 5G access network, and the first radio access network may include a fourth generation mobile communication 4G access network.

In addition, if the two frequency points have different priorities, the UE may select the cell with the higher priority according to the priority principle of cell reselection, so that the UE can quickly camp on the cell with the higher priority.

For example, the neighbor information of SIB5 is as follows:

frequency point information 1:

dl-CarrierFreq 100,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported TRUE,

cellReselectionPriority 5,

neighCellConfig'01'B

Frequency point information 5:

dl-CarrierFreq 300,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported FALSE,

cellReselectionPriority 6,

neighCellConfig'01'B

wherein EN-DCSupported FALSE indicates that the frequency point 5 does not support dual connectivity, and cellreselection priority indicates that the priority of the frequency point 5 is 6.

Under the condition of the configuration of the two adjacent regions of the frequency point information 1 and 5, since the priority of the frequency point 1 is 5 and the priority of the frequency point 5 is 6, although the frequency point 1 supports dual connectivity, the UE still searches according to the priority principle, that is, preferentially selects the cell of the frequency point 5, since the frequency point 5 has a higher priority. If frequency point 5 does not satisfy the reselection condition, the UE may select the cell of frequency point 1.

Fig. 4 shows another flowchart of a method for cell reselection according to an embodiment of the present application, which may be performed by an electronic device, for example, a terminal device. In other words, the method may be performed by software or hardware installed in the terminal device. As shown, the method may include the following steps.

S410: dual connectivity indication information is received.

The UE camps on a current cell and receives dual connectivity indication information, where the dual connectivity indication information may include an identifier of a neighboring cell supporting dual connectivity. Taking LTE cells as an example for illustration, the dual connectivity indication information may include an identifier of a neighboring cell supporting dual connectivity, such as CellList.

The SIB is used to provide parameters required for cell camping, reselection, link establishment, and the like for the UE, where the SIB5 carries dual connectivity indication information for inter-frequency cell reselection, and the dual connectivity indication information may be contained in the SIB 5. The dual connectivity indication information in SIB5 is for example:

frequency point information 6:

wherein, the EN-DCSupportedCellList indicates that the neighboring cells supporting dual connectivity in the pilot frequency carrier frequency point 6 are identified as physcellld 100 and physcellld 200.

S420: and determining the neighbor cell supporting the dual connectivity according to the identifier of the neighbor cell supporting the dual connectivity in the dual connectivity indication information.

For example, according to the EN-DCSupportedCellList in the above frequency point information 6, it is determined that the neighboring cells supporting dual connectivity are physcellld 100 and physcellld 200.

S430: camping on one of the neighbor cells supporting dual connectivity.

For example, camping on the neighboring cell physcellld 100 or physcellld 200.

Therefore, in the method for cell reselection provided in the embodiment of the present application, the neighboring cell supporting dual connectivity is determined according to the identifier of the neighboring cell supporting dual connectivity in the dual connectivity indication information; and residing in one adjacent cell in the adjacent cells supporting the double connection, the UE can timely acquire the adjacent cell supporting the double connection, and the UE can select the adjacent cell supporting the double connection, so that the UE can quickly acquire the service of the second wireless access network under the non-independent network architecture.

In another possible implementation manner, step S410 may include receiving a radio resource control RRC connection release message (RRCConnectionRelease message), where the RRCConnectionRelease message includes the dual connectivity indication information.

frequency point information 7:

wherein, EN-DCSupportedCellList in the frequency point information 7 indicates that the neighboring cells supporting dual connectivity in the pilot frequency carrier frequency point 7 are identified as physcellld 100 and physcellld 200.

In addition, in steps S420 to S430, neighboring cells physcellld 100 and physcellld 200 supporting dual connectivity can be determined according to the EN-DCSupportedCellList in the above frequency point information 7, and reside in one of the neighboring cells physcellld 100 and physcellld 200.

Fig. 5 is another flowchart of a method for cell reselection, which may be performed by an electronic device, for example, a terminal device. In other words, the method may be performed by software or hardware installed in the terminal device. As shown, the method may include the following steps.

S510: dual connectivity indication information is received.

The UE resides in the current cell and receives dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency point supports dual-connection and an identifier of an adjacent cell supporting dual-connection.

Because there may be multiple cells with different capabilities on one different-frequency carrier frequency point, for example, on a frequency point supporting dual connectivity, some cells support dual connectivity, and other cells do not support dual connectivity. If the UE reselects the frequency point supporting dual connectivity, but finally resides in a cell not supporting dual connectivity under the frequency point after reselection measurement, the service of the second radio access network cannot be obtained, and reselection is required again.

In this step, the dual connectivity indication information includes indication information for indicating whether the pilot frequency carrier frequency point supports dual connectivity and an identifier of an adjacent cell supporting dual connectivity, and can indicate the frequency point supporting dual connectivity and the adjacent cell supporting dual connectivity under the frequency point to the UE at the same time.

Taking LTE cells as an example for illustration, the dual connectivity indication information may include indication information for indicating whether the inter-frequency carrier frequency point supports dual connectivity, such as EN-DCSupported, and an identifier of a neighboring cell supporting dual connectivity, such as CellList.

frequency point information 8:

the EN-DCSupported TRUE indicates that the frequency point 8 supports dual connectivity, and the CellList indicates that the cell identifier supporting dual connectivity in the frequency point 8 includes: physcellld 100, physcellld 200, cellresisitionpriority indicates frequency point 8 with priority 5.

Frequency point information 9:

dl-CarrierFreq 300,

q-RxLevMin-64,

t-ReselectionEUTRA 1,

threshX-High 11,

threshX-Low 11,

allowedMeasBandwidth mbw100,

presenceAntennaPort1FALSE,

EN-DCSupported FALSE,

cellReselectionPriority 5,

neighCellConfig'01'B

wherein EN-DCSupported FALSE indicates that the frequency point 9 does not support dual connectivity, and cellreselection priority indicates that the priority of the frequency point 9 is 5.

S520: and determining one pilot frequency carrier frequency point supporting the dual connection from a plurality of pilot frequency carrier frequency points with the same priority according to the indication information which is used for indicating whether the pilot frequency carrier frequency point supports the dual connection in the dual connection indication information.

For example, one pilot frequency carrier frequency point 8 supporting dual connection is determined among a plurality of pilot frequency carrier frequency points 8 and 9 having the same priority.

S530: and determining the neighbor cell supporting the dual connectivity in the pilot frequency point supporting the dual connectivity according to the identifier of the neighbor cell supporting the dual connectivity in the dual connectivity indication information.

And searching the frequency point 8, and if the frequency point 8 meets the reselection condition, determining adjacent cells supporting dual connection in the pilot frequency carrier frequency point 8 as PhysCellId100 and PhysCellId200 according to the CellList of the frequency point 8.

S540: camping on one of the neighbor cells supporting dual connectivity.

For example, camping on the neighboring cell physcellld 100 or physcellld 200.

Therefore, according to the method for cell reselection provided by the embodiment of the present application, one pilot frequency carrier frequency point supporting dual connectivity is determined among a plurality of pilot frequency carrier frequency points having the same priority, according to the indication information in the dual connectivity indication information, which is used for indicating whether the pilot frequency carrier frequency point supports dual connectivity; determining the neighbor cell supporting the dual connectivity in the pilot frequency point supporting the dual connectivity according to the identifier of the neighbor cell supporting the dual connectivity in the dual connectivity indication information; the UE can timely know whether the pilot frequency carrier frequency points support the double connection and the adjacent cells supporting the double connection, and can select the pilot frequency carrier frequency points supporting the double connection and then select the adjacent cells supporting the double connection, so that the UE can quickly acquire the service of the second wireless access network under the non-independent network architecture.

In another possible implementation manner, step S510 may include receiving a radio resource control RRC connection release message (RRCConnectionRelease message), where the RRCConnectionRelease message includes the dual connectivity indication information.

frequency point information 10:

the EN-DCSupported in the frequency point information 10 indicates that the frequency point 10 supports dual connectivity, the CellList indicates that the neighbor cell identifier supporting dual connectivity in the pilot frequency carrier frequency point 10 is physcellld 100, physcellld 200, and the cellreselection priority indicates that the priority of the frequency point 10 is 5.

Frequency point information 11:

CarrierFreq 300,

CellReselectionPriority 5,

EN-DCSupported FALSE,

wherein EN-DCSupported in the frequency point information 11 indicates that the frequency point 11 does not support dual connectivity, and cellreselection priority indicates that the priority of the frequency point 11 is 5.

In addition, in steps S520 to S540, one pilot frequency carrier frequency point 10 supporting dual connectivity may be determined from the plurality of pilot frequency carrier frequency points 10 and 11 having the same priority; according to the CellList of the frequency point 10, determining adjacent cells supporting double connection in the pilot frequency carrier frequency point 10 as PhysCellId100 and PhysCellId 200; residing in the neighboring cell physcellld 100 or physcellld 200.

In addition, according to the method for cell reselection provided by the embodiment of the present application, the second radio access network includes a fifth-generation mobile communication 5G access network, and the first radio access network includes a fourth-generation mobile communication 4G access network, so that the UE can quickly obtain a 5G service.

Fig. 6 is a flowchart illustrating a method for cell reselection according to an embodiment of the present application, where the method may be performed by an electronic device, for example, a network device such as a base station. In other words, the method may be performed by software or hardware installed in the network device. As shown, the method may include the following steps.

S610: and sending the double connection indication information.

The dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency point supports dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

The neighbor cell may include any one of an LTE (Long Term Evolution) cell, a GSM (Global system for Mobile Communications) cell, a WCDMA (Wideband Code Division Multiple Access) cell, and a CDMA (Code Division Multiple Access) cell.

Taking LTE cells as an example for illustration, the dual connectivity indication information may include indication information for indicating whether the inter-frequency carrier frequency point supports dual connectivity, such as EN-DCSupported, and/or an identifier of a neighboring cell supporting dual connectivity, such as CellList. The EN-DCSupported TRUE indicates that the pilot frequency carrier frequency point supports double connection, and conversely, the EN-DCSupported FALSE indicates that the pilot frequency carrier frequency point does not support double connection. CellList lists the identities of neighbor cells that support dual connectivity.

Therefore, according to the cell reselection method provided by the embodiment of the application, by sending dual connection indication information, where the dual connection indication information includes indication information for indicating whether a pilot frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and the first radio access network and connection between the terminal device and the second radio access network, the UE can timely know whether the pilot frequency point supports dual connection and/or the adjacent cell supporting dual connection, and then the UE can select the pilot frequency point and/or the adjacent cell supporting dual connection, so that the UE can quickly obtain services of the second radio access network under a non-independent network architecture.

In a possible implementation manner, the sending the dual connectivity indication information includes: and sending a System Information Block (SIB), wherein the SIB comprises the dual connectivity indication information.

In a possible implementation manner, the sending the dual connectivity indication information includes: and sending a Radio Resource Control (RRC) connection release message, wherein the RRC connection release message comprises the dual-connection indication information.

In one possible implementation manner, the second radio access network includes a fifth generation mobile communication 5G access network, and the first radio access network includes a fourth generation mobile communication 4G access network.

Fig. 7 is a schematic structural diagram of an apparatus for cell reselection according to an embodiment of the present application, where the apparatus 10 includes: a receiving module 11 and a selecting module 12.

The receiving module 11 is configured to receive dual connectivity indication information, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network. The selecting module 12 is configured to perform cell reselection according to the dual connectivity indication information.

The apparatus 10 provided in the embodiment of the present application can perform the methods described in the foregoing method embodiments, and implement the functions and beneficial effects of the methods described in the foregoing method embodiments, which are not described herein again.

Fig. 8 is a schematic structural diagram of another apparatus for cell reselection according to an embodiment of the present application, where the apparatus 20 includes: a sending module 21.

The sending module 21 is configured to send dual connectivity indication information, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network.

The apparatus 20 provided in the embodiment of the present application may perform the methods described in the foregoing method embodiments, and implement the functions and beneficial effects of the methods described in the foregoing method embodiments, which are not described herein again.

Fig. 9 is a schematic diagram illustrating a hardware structure of an electronic device that executes a method for cell reselection according to an embodiment of the present disclosure. The electronic device may be a UE, such as a terminal device of a user, and the illustrated terminal device 900 includes: at least one processor 901, memory 902, a user interface 903, and at least one network interface 904. The various components in the terminal device 900 are coupled together by a bus system 905. It is understood that the bus system 905 is used to enable communications among the components. The bus system 905 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as bus system 905.

The user interface 903 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 902 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr SDRAM ), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 902 of the systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 9021 and application programs 9022.

The operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks. The application 9022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in application 9022.

In this embodiment of the present invention, the terminal device 900 further includes: a computer program stored on the memory 902 and executable on the processor 901, the computer program when executed by the processor 901 realizing: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information.

When being executed by a processor, the computer program realizes the processes of the method, can achieve the same technical effect, and is not repeated herein to avoid repetition.

The method disclosed in the above embodiments of the present invention may be applied to the processor 901, or implemented by the processor 901. The processor 901 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 901. The Processor 901 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and combines the hardware to complete the steps of the above method. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 901, enables: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

An embodiment of the present application also proposes a computer-readable storage medium storing one or more programs that, when executed by a terminal including a plurality of application programs, cause the terminal to perform operations of: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information.

The computer-readable storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Further, embodiments of the present application also provide a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, which when executed by a computer, implement the following process: receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network; and performing cell reselection according to the dual-connection indication information.

Fig. 10 is a schematic diagram illustrating a hardware structure of another electronic device that performs a method for cell reselection according to an embodiment of the present disclosure. The electronic device may be a network device. As shown, the network device 1000 includes a processor 1001, a transceiver 1002, a memory 1003, and a bus interface. Wherein: in this embodiment of the present invention, the network device 1000 further includes: a computer program stored on the memory 1003 and executable on the processor 1001, the computer program when executed by the processor 1001 implementing: and sending dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

In the figure, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.

An embodiment of the present application also proposes a computer-readable storage medium storing one or more programs that, when executed by a terminal including a plurality of application programs, cause the terminal to perform operations of: and sending dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

Further, embodiments of the present application also provide a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, which when executed by a computer, implement the following process: and sending dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

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

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory 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 memory 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.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A method for cell reselection is applied to a terminal device, and is characterized by comprising the following steps:

receiving dual connection indication information, wherein the dual connection indication information includes indication information for indicating whether a pilot frequency carrier frequency point supports dual connection and/or an identifier of an adjacent cell supporting dual connection, and the dual connection includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network;

and performing cell reselection according to the dual-connection indication information.

2. The method of claim 1, wherein performing cell reselection according to the dual connectivity indication information when the dual connectivity indication information includes an identifier of a neighboring cell supporting dual connectivity comprises:

determining the neighbor cell supporting the dual connectivity according to the identifier of the neighbor cell supporting the dual connectivity in the dual connectivity indication information;

camping on one of the neighbor cells supporting dual connectivity.

3. The method according to claim 1, wherein performing cell reselection according to the dual connectivity indication information, when the dual connectivity indication information includes indication information indicating whether a pilot frequency carrier frequency point supports dual connectivity, includes:

determining a pilot frequency carrier frequency point supporting double connection according to the indication information which is used for indicating whether the pilot frequency carrier frequency point supports double connection in the double connection indication information;

residing in an adjacent cell in the pilot frequency carrier frequency point supporting the double connection.

4. The method according to claim 1, wherein performing cell reselection according to the dual connectivity indication information, when the dual connectivity indication information includes indication information indicating whether a pilot frequency carrier frequency point supports dual connectivity, includes:

according to the indication information which is used for indicating whether the pilot frequency points support the dual connection in the dual connection indication information, determining one pilot frequency carrier frequency point supporting the dual connection from a plurality of pilot frequency carrier frequency points with the same priority;

5. The method according to claim 1, wherein performing cell reselection according to the dual connectivity indication information when the dual connectivity indication information includes indication information indicating whether a pilot frequency carrier frequency point supports dual connectivity and an identifier of an adjacent cell supporting dual connectivity, includes:

determining the neighbor cell supporting the dual connectivity in the pilot frequency point supporting the dual connectivity according to the identifier of the neighbor cell supporting the dual connectivity in the dual connectivity indication information;

camping on one of the neighbor cells supporting dual connectivity.

6. The method of claim 1, wherein the receiving dual connectivity indication information comprises:

receiving a System Information Block (SIB) including the dual connectivity indication information; or

And receiving a Radio Resource Control (RRC) connection release message, wherein the RRC connection release message comprises the dual-connection indication information.

7. The method of claim 1, wherein the second radio access network comprises a fifth generation mobile communications 5G access network and the first radio access network comprises a fourth generation mobile communications 4G access network.

8. A method for cell reselection, applied to a network device, is characterized by comprising:

and sending dual-connection indication information, wherein the dual-connection indication information comprises indication information used for indicating whether the pilot frequency carrier frequency points support dual-connection and/or an identifier of an adjacent cell supporting dual-connection, and the dual-connection comprises connection between the terminal equipment and a first radio access network and connection between the terminal equipment and a second radio access network.

9. The method of claim 8, wherein the sending dual connectivity indication information comprises:

sending a System Information Block (SIB) including the dual connectivity indication information; or

And sending a Radio Resource Control (RRC) connection release message, wherein the RRC connection release message comprises the dual-connection indication information.

10. The method of claim 8, wherein the second radio access network comprises a fifth generation mobile communications 5G access network and the first radio access network comprises a fourth generation mobile communications 4G access network.

11. An apparatus for cell reselection, comprising:

a receiving module, configured to receive dual connectivity indication information, where the dual connectivity indication information includes indication information used to indicate whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes a connection between the terminal device and a first radio access network and a connection between the terminal device and a second radio access network;

and the selection module is used for reselecting the cell according to the double-connection indication information.

12. An apparatus for cell reselection, comprising:

the sending module is configured to send dual connectivity indication information, where the dual connectivity indication information includes indication information used for indicating whether a pilot frequency carrier frequency point supports dual connectivity and/or an identifier of an adjacent cell supporting dual connectivity, and the dual connectivity includes connection between the terminal device and a first radio access network and connection between the terminal device and a second radio access network.

13. An electronic device, comprising:

a processor; and

a memory arranged to store computer executable instructions that when executed perform the method of any one or more of claims 1 to 7 using the processor.

14. An electronic device, comprising:

a processor; and

a memory arranged to store computer executable instructions that when executed perform the method of any one or more of claims 8 to 10 using the processor.