CN112243275A

CN112243275A - Method for receiving neighbor cell information, method for sending neighbor cell information, terminal and base station

Info

Publication number: CN112243275A
Application number: CN201910645883.4A
Authority: CN
Inventors: 陈宁宇; 旷婧华; 胡南
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: 2019-07-17
Filing date: 2019-07-17
Publication date: 2021-01-19
Also published as: WO2021008521A1

Abstract

A method for receiving and sending adjacent cell information, a terminal and a base station are provided, the method comprises: receiving reselection information sent by a network, wherein the reselection information comprises a corresponding relation between first information and second information, the first information comprises a neighboring cell frequency point and/or a neighboring cell identifier, the second information comprises public land mobile network PLMN and/or prohibit timer information, and the prohibit timer information is used for indicating the time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs. The invention can provide technical support for reducing or avoiding reselection time delay caused by the terminal being reselected to a non-home operator network when the frequency spectrum is shared, and can reduce or avoid co-frequency interference by prohibiting the terminal from accessing the frequency point when the PLMN of the optimal cell of the frequency point is different from the PLMN to which the terminal belongs.

Description

Method for receiving neighbor cell information, method for sending neighbor cell information, terminal and base station

Technical Field

The invention relates to the technical field of mobile communication, in particular to a method for receiving neighbor cell information, a method for sending neighbor cell information, a terminal and a base station.

Background

In the prior art, a network usually broadcasts the following information through system information, including same-frequency neighboring cell information, different-frequency neighboring cell information, and different-system neighboring cell information. And the terminal completes downlink synchronization and decodes necessary system information in the process of cell search. The terminal may select the camping cell according to various preset cell selection criteria.

In order to effectively utilize limited spectrum resources, an application scenario in which multiple operators share the same spectrum is currently presented. In the above scenario, when a terminal may perform cell reselection, how to reduce the terminal reselection delay in the above scenario becomes a technical problem to be solved urgently.

Disclosure of Invention

At least one embodiment of the invention provides a neighboring cell information receiving method, a neighboring cell information sending method, a terminal and a base station, and provides technical support for reducing or avoiding reselection delay caused by the terminal being reselected to a non-home operator network during spectrum sharing.

According to an aspect of the present invention, at least one embodiment provides a method for receiving neighboring cell information, including:

the method comprises the steps of receiving reselection information sent by a network, wherein the reselection information comprises a corresponding relation between first information and second information, the first information comprises a neighboring cell frequency point and/or a neighboring cell identifier, the second information comprises Public Land Mobile Network (PLMN) and/or prohibit timer information, the prohibit timer information is used for indicating the time for prohibiting the terminal from performing cell reselection on a target frequency point when a first event occurs, and the first event is that the PLMN of a cell on the target frequency point is not the PLMN or equivalent PLMN to which the terminal belongs.

Further in accordance with at least one embodiment of the present invention, the reselection information includes at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

Further in accordance with at least one embodiment of the present invention, the correspondence includes at least one of a first correspondence, a second correspondence, a third correspondence, and a fourth correspondence, wherein:

in the first corresponding relation, the first information is a neighboring cell frequency point, and the second information is at least one piece of PLMN information and/or prohibit timer information corresponding to the first information;

in the second corresponding relationship, the second information is PLMN information and/or prohibit timer information of the cell, and the first information is at least one adjacent cell frequency point corresponding to the second information;

in the third correspondence, the first information is an adjacent cell identifier, and the second information is at least one piece of PLMN information and/or prohibit timer information corresponding to the first information;

in the fourth corresponding relationship, the second information is PLMN information and/or prohibit timer information of the cell, and the first information is at least one neighbor cell identifier corresponding to the second information;

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Furthermore, according to at least one embodiment of the present invention, when performing cell reselection, the method further includes:

selecting a target cell on the first frequency point according to a preset cell reselection criterion;

judging whether the PLMN of the target cell is the PLMN or equivalent PLMN to which the terminal belongs according to the reselection information;

and when the PLMN of the target cell is the PLMN to which the terminal belongs or an equivalent PLMN, reselecting or residing to the target cell.

Furthermore, in accordance with at least one embodiment of the present invention, the above method further comprises:

and when the PLMN of the target cell is not the PLMN to which the terminal belongs or the equivalent PLMN, starting a first prohibition timer, and performing cell reselection on a second frequency point, wherein the second frequency band is different from the first frequency point, and the terminal prohibits the cell reselection on the first frequency point before the first prohibition timer is overtime.

According to another aspect of the present invention, at least one embodiment provides a method for sending neighbor cell information, which is applied to a base station, and includes:

and sending reselection information to a terminal, wherein the reselection information comprises a corresponding relation between first information and second information, the first information comprises a neighboring cell frequency point and/or a neighboring cell identifier, the second information comprises Public Land Mobile Network (PLMN) and/or prohibit timer information, the prohibit timer information is used for indicating the time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that the PLMN of the cell reselected on the target frequency point is not the PLMN or equivalent PLMN to which the terminal belongs.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

According to another aspect of the present invention, at least one embodiment provides a terminal including:

the terminal comprises a receiving module and a reselection module, wherein the reselection information comprises a corresponding relation between first information and second information, the first information comprises a neighboring cell frequency point and/or a neighboring cell identifier, the second information comprises Public Land Mobile Network (PLMN) and/or prohibit timer information, the prohibit timer information is used for indicating the time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that the PLMN of a cell on the target frequency point is not the PLMN or equivalent PLMN to which the terminal belongs.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Furthermore, according to at least one embodiment of the present invention, the terminal further includes:

the access module is used for selecting a target cell on a first frequency point according to a preset cell reselection criterion when cell reselection is carried out; judging whether the PLMN of the target cell is the PLMN or equivalent PLMN to which the terminal belongs according to the reselection information; and when the PLMN of the target cell is the PLMN to which the terminal belongs or an equivalent PLMN, reselecting or residing to the target cell.

In addition, according to at least one embodiment of the present invention, the access module is further configured to start a first prohibit timer when the PLMN of the target cell is not the PLMN to which the terminal belongs or an equivalent PLMN, and perform cell reselection on a second frequency point, where the second frequency band is different from the first frequency point, and the terminal prohibits the cell reselection on the first frequency point before the first prohibit timer expires.

In accordance with another aspect of the present invention, at least one embodiment provides a terminal comprising a processor and a transceiver, wherein,

the transceiver is configured to receive reselection information sent by a network, where the reselection information includes a correspondence between first information and second information, the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes public land mobile network PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

According to another aspect of the present invention, at least one embodiment provides a base station comprising:

the device comprises a sending module and a reselection module, wherein the reselection information comprises a corresponding relation between first information and second information, the first information comprises a neighboring cell frequency point and/or a neighboring cell identifier, the second information comprises Public Land Mobile Network (PLMN) and/or prohibit timer information, the prohibit timer information is used for indicating the time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that the PLMN of a cell reselected by the cell on the target frequency point is not the PLMN or equivalent PLMN to which the terminal belongs.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

In accordance with another aspect of the present invention, at least one embodiment provides a base station comprising a processor and a transceiver, wherein,

the transceiver is configured to send reselection information to a terminal, where the reselection information includes a correspondence between first information and second information, the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes public land mobile network PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell reselected on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

According to another aspect of the present invention, at least one embodiment provides a communication apparatus comprising: a memory, a processor and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method as described above.

According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.

Compared with the prior art, the adjacent cell information receiving method, the adjacent cell information sending method, the terminal and the base station provided by the embodiment of the invention have the advantages that the terminal can acquire the PLMN to which the adjacent cell belongs by broadcasting the reselection information comprising the corresponding relation between the adjacent cell and the PLMN/forbidden timer through the network, so that the technical support is provided for reducing or avoiding the reselection time delay caused by the terminal reselecting to a non-home operator network when the frequency spectrum is shared, and the terminal is forbidden to access on a frequency point when the PLMN of the optimal cell of the frequency point is different from the PLMN to which the terminal belongs.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for receiving neighboring cell information according to an embodiment of the present invention;

fig. 3 is a flowchart of a method for sending neighbor cell information according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 7 is another schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

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

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Time Evolution (LTE), LTE-Advanced (LTE-a), and 5G new air interface (NR) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a User terminal or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a core network element, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention only takes the Base Station in the NR system as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

The network side can broadcast the following information through the system information, including the same-frequency adjacent cell information, different-frequency adjacent cell information and different-system adjacent cell information. The neighbor cell information includes a physical cell identifier, but usually does not include Public Land Mobile Network (PLMN) information. Therefore, in a scenario where multiple operators share a spectrum, when reading the neighbor cell information in the system information, the terminal does not know to which PLMN a certain neighbor cell belongs. Therefore, when a terminal reselects a cell, it is usually necessary to obtain PLMN information of a certain neighboring cell by reading system information of the neighboring cell after reselecting the neighboring cell, and at this time, if the neighboring cell does not belong to the PLMN of the terminal, the terminal cannot camp on the neighboring cell, and thus it is necessary to continue cell reselection, which results in a long time consumption in an access process.

In order to solve the above problems, embodiments of the present invention provide a method for receiving neighboring cell information, which can provide technical support for reducing or avoiding reselection delay caused by a terminal reselecting to a non-home operator network during spectrum sharing. Referring to fig. 2, a method for receiving neighboring cell information according to an embodiment of the present invention is applied to a terminal, and includes:

step 21, receiving reselection information sent by a network, where the reselection information includes a corresponding relationship between first information and second information, the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

Here, the reselection information may specifically be one or more of the following information: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information. The reselection information may be sent by a cell where the terminal currently resides, and specifically may be sent by being carried in a system message, or may be sent by an RRC signaling message, which is not specifically limited in this embodiment of the present invention.

Optionally, the correspondence at least includes a correspondence between neighboring cell frequency points/neighboring cell identifiers and PLMNs, so that the PLMN corresponding to each neighboring cell frequency point/neighboring cell identifier can be determined through the chess-playing relationship, so that the terminal can obtain the PLMN to which each neighboring cell belongs.

Optionally, the corresponding relationship further includes the prohibit timer, so as to prohibit the terminal from performing cell reselection on the target frequency point within a subsequent period of time when the terminal finds that the PLMN of the cell on the target frequency point is not the PLMN or the equivalent PLMN to which the terminal belongs, so that the cell reselection efficiency of the terminal can be greatly improved, and the reselection delay is reduced.

Through the steps, the embodiment of the invention realizes that the reselection information of the corresponding relation between the adjacent cell and the PLMN/prohibit timer is sent to the terminal by the current resident cell, so that the terminal can know the PLMN to which each adjacent cell belongs, the adjacent cell under the PLMN to which the terminal belongs can be selected to be accessed when the cell is reselected subsequently, and the technical support is provided for reducing or avoiding the reselection time delay caused by the terminal reselecting to a non-home operator network when the frequency spectrum is shared.

According to at least one embodiment of the present invention, the corresponding relationship may include at least one of a first corresponding relationship, a second corresponding relationship, a third corresponding relationship, and a fourth corresponding relationship, where:

1) in the first corresponding relation, the first information is a neighboring frequency point, and the second information is at least one PLMN information and/or prohibit timer information corresponding to the first information.

Herein, the neighboring cell frequency point refers to a working frequency point of a neighboring cell, and the PLMN information may specifically be a PLMN Identity (ID) of a cell or a PLMN ID list including a plurality of PLMN IDs.

The first correspondence relationship is in the form of one or more pieces of PLMN information (each piece of PLMN information may be a PLMN ID or a PLMN ID list) corresponding to one frequency point, and represents a correspondence relationship between an adjacent cell and a PLMN.

In practical application, there may be multiple cells on a frequency point, and the multiple cells on the frequency point may belong to the same operator, and the operator may have more than one PLMN ID, that is, when multiple cells working at a certain neighboring cell frequency point all belong to the same operator, the first correspondence may be used to indicate the correspondence between all neighboring cells and PLMN information (specifically, one PLMN ID or a list including multiple PLMN IDs, and all PLMN IDs in the list all belong to the same operator) on the neighboring cell frequency point, so that the manner of indicating for each neighboring cell is avoided, and thus, the data amount required by the indication information can be reduced.

2) In the second corresponding relationship, the second information is PLMN information and/or prohibit timer information of the cell, and the first information is at least one neighboring cell frequency point corresponding to the second information.

Here, the second correspondence relationship is in the form of one or more frequency points corresponding to one PLMN information (e.g., one PLMN ID or one PLMN ID list) to indicate a correspondence relationship between the neighboring cell and the PLMN.

3) In the third correspondence, the first information is an adjacent cell identifier, and the second information is at least one PLMN information and/or prohibit timer information corresponding to the first information.

Here, the third correspondence relationship is in the form of one or more pieces of PLMN information (e.g., a PLMN ID or a PLMN ID list) corresponding to one neighboring cell identifier, and represents the correspondence relationship between the neighboring cells and the PLMNs.

4) In the fourth corresponding relationship, the second information is PLMN information and/or prohibit timer information of the cell, and the first information is at least one neighbor cell identifier corresponding to the second information.

Here, the fourth correspondence relationship is in the form of one or more neighbor cell identifiers corresponding to one piece of PLMN information (e.g., one PLMN ID or one PLMN ID list), and represents a correspondence relationship between the neighbor cells and the PLMNs.

According to at least one embodiment of the present invention, after step 21, when performing cell reselection, the terminal may further select a target cell on a certain frequency point (e.g., a first frequency point) according to a predetermined cell reselection criterion; then, according to the reselection information, judging whether the PLMN of the target cell is the PLMN or an equivalent PLMN to which the terminal belongs; and when the PLMN of the target cell is the PLMN to which the terminal belongs or an equivalent PLMN, reselecting or residing to the target cell.

Optionally, if it is determined that the PLMN of the target cell is not the PLMN or the equivalent PLMN to which the terminal belongs, the terminal may start a first prohibition timer and perform cell reselection on a second frequency point, where the second frequency band is different from the first frequency point, where the terminal prohibits the cell reselection on the first frequency point before the first prohibition timer expires. And the timeout time of the first prohibit timer is set according to the prohibit timer information corresponding to the first frequency point or the target cell in the reselection information.

Therefore, through the prohibition timer, the embodiment of the invention can prevent the terminal from reselecting the suboptimal cell by prohibiting the terminal from accessing the frequency point when the PLMN of the optimal cell of the frequency point is different from the PLMN to which the terminal belongs, so that when the terminal reselects the suboptimal cell, the downlink signal of the optimal cell can bring downlink interference to the terminal, and the uplink signal of the terminal can also bring interference to the uplink signal of the optimal cell, thereby generating a serious co-frequency interference problem. The embodiment of the invention can avoid the terminal from staying at the frequency point within a period of time through the prohibition timer, and prompt the terminal to reselect other frequency points, thereby reducing or avoiding the same frequency interference.

The above introduces a method flow at the terminal side. Referring to fig. 3, an embodiment of the present invention further provides a neighboring cell information sending method, which is applied to a base station, and includes:

step 31, reselection information is sent to a terminal, where the reselection information includes a corresponding relationship between first information and second information, the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes public land mobile network PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell reselected by the terminal on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

Optionally, the reselection information includes at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

Optionally, the corresponding relationship includes at least one of a first corresponding relationship, a second corresponding relationship, a third corresponding relationship, and a fourth corresponding relationship, where:

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Through the steps, the reselection information can be sent to the terminal by the network, so that the terminal can know the PLMN to which each neighboring cell belongs, and can select the neighboring cell under the PLMN to which the terminal belongs to access when performing subsequent cell reselection, thereby providing technical support for reducing or avoiding reselection delay caused by the fact that the terminal reselects to a non-home operator network when sharing frequency spectrum.

Several possible examples of the correspondence described in step 31 are listed below, which are characterized by a frequency or a neighboring cell, corresponding to several pieces of PLMN information (specifically, one PLMN ID or a PLMN list including multiple PLMN IDs), where the several pieces may be one or more:

1) the same-frequency reselection information contains the physical cell identifier of the same-frequency neighboring cell and the 'PLMN information + prohibit timer information'. Herein, "a + B" means a combination including a and B, and as such, "PLMN information + prohibit timer information" means a combination including both PLMN information and prohibit timer information.

2) The pilot frequency reselection information includes adjacent frequency information and "PLMN information + prohibit timer information".

3) The pilot frequency reselection information comprises adjacent frequency information, wherein the adjacent frequency information comprises frequency point information, physical cell identification and 'PLMN information + forbidden timer information'. The physical cell identifier is the physical cell identifier of the cell on the frequency point indicated by the frequency point information. The PLMN information is a PLMN ID or PLMN ID list of the cell.

4) The inter-system reselection information includes radio access network (RAT) information, frequency information, and "PLMN information + prohibit timer information".

5) The inter-system reselection information includes RAT information, frequency information, physical cell identification information, and "PLMN information + prohibit timer information". The physical cell identifier is a physical cell identifier of a cell of the RAT on the frequency, and the PLMN information is a PLMN ID or a PLMN ID list corresponding to the cell.

Some other possible examples of correspondences described in step 31 are as follows, which are characterized by one or a group of PLMNs, corresponding to a plurality of frequencies or to a plurality of cells:

1) the same-frequency reselection information comprises one or a group of PLMN (public land mobile network) corresponding to a plurality of physical cell identifiers.

2) The pilot frequency reselection information comprises one or a group of PLMNs corresponding to a plurality of frequency points.

3) The pilot frequency reselection information comprises one or a group of PLMNs (public land mobile networks), and corresponds to a plurality of frequency points, and each frequency point comprises a plurality of physical cell identifications.

4) The inter-system reselection information comprises one or a group of PLMNs (public land mobile networks), which correspond to a plurality of frequency points, and each frequency point comprises a plurality of physical cell identifications.

Based on the method, the embodiment of the invention also provides equipment for implementing the method.

Referring to fig. 4, an embodiment of the present invention provides a terminal 40, including:

a receiving module 41, configured to receive reselection information sent by a network, where the reselection information includes a corresponding relationship between first information and second information, where the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes public land mobile network PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Optionally, the terminal further includes:

Optionally, the access module is further configured to start a first prohibit timer when the PLMN of the target cell is not the PLMN to which the terminal belongs or an equivalent PLMN, and perform cell reselection on a second frequency point, where the second frequency band is different from the first frequency point, and the terminal prohibits the cell reselection on the first frequency point before the first prohibit timer expires.

Referring to fig. 5, another structure of a terminal according to an embodiment of the present invention is shown, in which the terminal 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface, wherein:

in this embodiment of the present invention, the terminal 500 further includes: a program stored on a memory 503 and executable on a processor 501, the program when executed by the processor 501 implementing the steps of:

In fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 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 502 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. For different user devices, the user interface 504 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 may store data used by the processor 501 in performing operations.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Optionally, the program may further implement the following steps when executed by the processor 503:

when cell reselection is carried out, a target cell is selected on a first frequency point according to a preset cell reselection criterion;

Referring to fig. 6, an embodiment of the present invention provides a base station 60, including:

a sending module 61, configured to send reselection information to a terminal, where the reselection information includes a correspondence between first information and second information, the first information includes a neighboring cell frequency point and/or a neighboring cell identifier, the second information includes public land mobile network PLMN and/or prohibit timer information, the prohibit timer information is used to indicate a time for the terminal to prohibit cell reselection on a target frequency point when a first event occurs, and the first event is that a PLMN of a cell reselected on the target frequency point is not a PLMN or an equivalent PLMN to which the terminal belongs.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Referring to fig. 7, another schematic structural diagram of a network device according to an embodiment of the present invention includes: a processor 701, a transceiver 702, a memory 703 and a bus interface, wherein:

in this embodiment of the present invention, the network device 700 further includes: a program stored on a memory 703 and executable on a processor 701, which when executed by the processor 701 performs the steps of:

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 703, 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 702 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 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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

2. The method of claim 1, wherein the reselection information comprises at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

3. The method of claim 1, wherein the correspondence comprises at least one of a first correspondence, a second correspondence, a third correspondence, and a fourth correspondence, wherein:

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

4. A method according to any of claims 1 to 3, wherein, in performing cell reselection, the method further comprises:

5. The method of claim 4, further comprising:

6. A method for sending neighbor cell information is applied to a base station, and is characterized by comprising the following steps:

7. The method of claim 6, wherein the reselection information comprises at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

8. The method of claim 6, wherein the correspondence comprises at least one of a first correspondence, a second correspondence, a third correspondence, and a fourth correspondence, wherein:

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

9. A terminal, comprising:

10. The terminal of claim 9, wherein the reselection information comprises at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

11. The terminal of claim 9, wherein the correspondence comprises at least one of a first correspondence, a second correspondence, a third correspondence, and a fourth correspondence, wherein:

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

12. The terminal according to any of claims 9 to 11, further comprising:

13. The terminal of claim 12,

the access module is further configured to start a first prohibit timer and perform cell reselection on a second frequency point when the PLMN of the target cell is not the PLMN to which the terminal belongs or an equivalent PLMN, where the second frequency band is different from the first frequency point, and the terminal prohibits the cell reselection on the first frequency point before the first prohibit timer expires.

14. A terminal comprising a processor and a transceiver, wherein,

15. A base station, comprising:

16. The base station of claim 15, wherein the reselection information comprises at least one of: common-frequency reselection information, pilot-frequency reselection information and inter-system reselection information.

17. The base station of claim 15, wherein the correspondence comprises at least one of a first correspondence, a second correspondence, a third correspondence, and a fourth correspondence, wherein:

and the PLMN information is a PLMN ID or a PLMN ID list of the cell.

18. A base station comprising a processor and a transceiver, wherein,

19. A communication device, comprising: memory, processor and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 1 to 8.

20. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a program which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.