KR101656530B1 - Method and apparatus for transmitting and receiving paging using band information in wireless communication system - Google Patents

Abstract

The present invention relates to a method and apparatus for transmitting and receiving a paging message for a terminal in a wireless communication system. The base station transmits band information on a band supported by the terminal to the paging control station when the terminal enters the idle mode, and the paging control station stores the band information. When a paging instruction including band information of a mobile station is received from a paging control station, the base station transmits a paging message through a paging carrier selected in a band supported by the mobile station in a paging listening interval. The present invention can prevent an unnecessary procedure by ensuring reception of a paging message in a band supported by a terminal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for transmitting / receiving paging information using band information in a wireless communication system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting and receiving a paging message in a wireless communication system using a frequency overlay (hereinafter referred to as a 'frequency overlay communication system') .

As communication systems are developed, the types of services they provide are also diversifying, and there is a growing need for research and development of broadband communication systems for providing various types of services over a broadband. Frequency resources in a broadband communication system are limited. That is, since a usable frequency band is limited and backward compatibility with already installed communication systems must be considered, there is a problem that a broadband communication system is difficult to design.

Conventional broadband communication systems are designed on the assumption that different frequency bands are allocated and used to provide various kinds of broadband services. As communications technology evolves, the demand for increased frequency bands for broadband services is inevitable, thereby increasing license costs for use of frequency bands. Therefore, due to the increase of the licensing cost for the frequency band, various methods proposed for providing actual broadband service are not served and are delayed.

Accordingly, there is a need to provide a solution for smoothly providing a broadband service while overcoming the limitation of the frequency band, that is, solving the problem of increasing the license cost for the frequency band. One of such schemes is a broadband communication system overlaid with a conventional communication system and a specific frequency band, for example, a Code Division Multiple Access 2000 3x (CDMA2000 3x) communication system and an overlay orthogonal frequency division And an orthogonal division multiple access (OFDM) communication system. In this case, a new definition of transmission and reception of a paging message transmitted and received between a mobile station (MS) and a base station (BS) of a broadband communication system overlaid over a specific frequency band is required.

The present invention provides a method and apparatus for transmitting and receiving a paging message in a frequency overlayed broadband communication system.

The present invention provides a method and apparatus for transmitting a paging message according to a band supported by a terminal.

The present invention provides a method and apparatus for determining a paging carrier using band information of a band supported by a terminal.

A method according to a preferred embodiment of the present invention is a method for transmitting paging by a base station operating a plurality of frequency bands in a wireless communication system,

Transmitting a paging control message including paging group information for a paging group to which a base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station to a mobile station in an idle mode; Determining a paging carrier to transmit a paging message among paging carriers of bands supported by the terminal based on an identifier for identifying the terminal and a number of paging carriers of a band supported by the terminal; And transmitting the paging message for the UE through the paging message.

A method according to another embodiment of the present invention is a method for receiving paging from a base station operating a plurality of frequency bands in a wireless communication system,

Receiving a paging control message including paging group information for a paging group to which a base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station; Determining a paging carrier to be monitored to receive a paging message among paging carriers of a band supported by the terminal based on an identifier for the paging carrier supported by the terminal and a number of paging carriers of the band supported by the terminal, And receiving the paging message for the MS from the BS through the BS.

An apparatus in a base station for operating a plurality of frequency bands in a wireless communication system and transmitting paging for a terminal in an idle mode in an apparatus according to an embodiment of the present invention,

Generating a paging control message including paging group information for a paging group to which the base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station, A controller for determining a paging carrier to transmit a paging message among paging carriers of bands supported by the terminal, based on the number of paging carriers of the band supported by the terminal, and a controller for transmitting the paging control message to the terminal in the idle mode And a transceiver for transmitting the paging message for the terminal through the determined paging carrier.

An apparatus according to another embodiment of the present invention is an apparatus in a terminal that receives paging from a base station that operates a plurality of frequency bands in a wireless communication system,

A paging control message and a paging message from a base station; and a paging control unit configured to receive, from the paging control message, paging group information for a paging group to which the base station belongs and at least one paging carrier included in bands Based on the identifier for identifying the UE and the number of paging carriers of the band supported by the UE, to monitor the paging message among the paging carriers of the bands supported by the UE to receive the paging message Determining a paging carrier, and controlling the transceiver to monitor the determined paging carrier.

The present invention can prevent the overhead caused by using a band class not supported by the UE and effectively distribute the paging load between carriers in the base station. Also, it is possible to reduce the overhead of paging message according to the operation of the paging carrier, while at the same time guaranteeing reception of the paging message in the band supported by the terminal, thereby preventing an unnecessary location update procedure.

Brief Description of the Drawings Figure 1 schematically illustrates the allocation structure of bands and carriers in a frequency overlay communication system;
2 is a message flow diagram illustrating an operation in which a UE selects a paging carrier in a frequency overlay communication system;
3 is a message flow diagram illustrating an operation of transmitting band information of a terminal in an idle mode entry procedure according to an embodiment of the present invention.
4 is a message flow diagram illustrating an operation for sending a paging indication during a paging listening interval according to an embodiment of the present invention.
5 is a message flow diagram illustrating an operation in which a terminal selects a paging carrier and receives a paging message in a paging listening interval according to an embodiment of the present invention.
6A and 6B are flowcharts illustrating an operation in which a base station transmits a paging message using band information of a mobile station according to an embodiment of the present invention.
7 is a block diagram schematically illustrating a configuration of a base station according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation of the present invention are described, and other background techniques are omitted so as not to disturb the gist of the present invention.

Reference will be made herein to communication standards based on IEEE 802.16e and 16m in describing paging transmission and reception operations in a wireless communication system. However, the paging operation according to the present invention is not limited to a particular communication protocol or system configuration, and various modifications may be made without departing from the gist of the present invention. It should be apparent to those skilled in the art, Of course.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram schematically showing a band and carrier allocation structure in a frequency overlay communication system. Fig.

Referring to FIG. 1, the communication system operates in two frequency bands, namely band A 100 and band B 103. As an example, Band A 100 may have a center frequency of 2.5 GHz and Band B 103 may have a center frequency of 3.5 GHz. The base station 1 111 includes the carriers C 1 1 113, C 2 115 and C 3 117 belonging to the band A 100, C12 121, C6 123, and C7 125, which are carriers belonging to the B 103. The base station 2 151 transmits the C 4 159, the C 5 161, and the C 6 161, which are the carriers belonging to the band A 100, which are the carriers belonging to the C 1 153, the C 2 155 and the C 3 157, (163), and C7 (165).

Each base station manages some previously promised carriers as paging carriers in order to mitigate the burden of the terminal in idle mode to monitor all carriers for reception of the paging message. In the illustrated example, the first base station 111 uses C1 113, C3 117, C4 119, C5 121 and C6 123 as paging carriers and the second base station 151 uses C1 153), C2 (155), C3 (157), C4 (159), and C7 (165) are used as paging carriers. The base station 1 (111) or the base station 2 (151) transmits a paging message only through paging carriers when paging is requested from an upper system. These paging carriers have been introduced to prevent paging messages from being transmitted in duplicate on all carriers of the base stations. The paging carriers from among the paging carriers to which the terminal will receive its paging message are selected through a predetermined specific operation.

2 is a message flow diagram illustrating an operation of a terminal selecting a paging carrier in a wireless communication system.

2, the UE 201 is in an idle mode, and the base station 251 operates the carriers C1, C2, C3, C4, C5, C6, and C7, , C4, C5, and C6 are used as paging carriers.

In step 211, the base station 251 transmits a paging control message for advertising a paging group supported by the base station 251 at a predetermined position within a paging listening interval according to a paging cycle, that is, And transmits a paging group information (PGID_Info) message to terminals in the idle mode. The PGID_Info message may be sent on all carriers configured in the base station 251, all paging carriers, or carriers indicated by the parent system. In particular, the PGID_Info message includes information on at least one paging carrier operated by the base station, that is, paging carrier information. As one example, the PGID_Info message includes a number of PGIDs included in the PGID_Info message, a paging group identifier of the paging group to which the base station transmitting the PGID_Info message belongs, a paging carrier indication bit indicating whether each carrier in the base station is a paging carrier Map. The paging carrier indication bitmap has the same size as the number of carriers operable in the base station, and the bits in the bitmap correspond to the operable carriers, respectively. The number of paging carriers becomes equal to the number of bits set to '1' in the bitmap.

In step 213, the UE 201 in the idle mode obtains paging carrier information of the BS 251 for grasping a paging carrier to receive a Paging Advertisement (PAG-ADV) message from the PGID_Info message. The paging carrier information includes, by way of example, a paging carrier indication bitmap indicating at least one carrier to use as a paging carrier among the carriers of the base station 251. [ In the illustrated example, the paging carrier information indicates C1, C3, C4, C5, and C6 among the carriers C1 to C7.

In step 215, the UE 201 determines a paging carrier to monitor a paging message during a paging listening interval in accordance with a predetermined arithmetic expression. As an example, an operation expression used for determining a paging carrier is expressed by Equation (1) below.

Here, the DID (Deregistration Identifier) is a deregistration identifier uniquely assigned to identify the UE in the idle mode, N means the number of paging carriers operated by the base station, and 'mod' means modulo operation. The DID is allocated when the UE enters the idle mode, i.e., at the time of deregistration, and N is obtained from the paging carrier information of the PGID_Info message.

For example, if the DID of the UE 201 is '237', since the number of paging carriers operated by the BS 251 is 5, the paging carrier of the UE 201 is determined to be C4.

In step 217, the terminal 201 receives a paging message for paging the terminal 201 in the determined paging carrier C4, that is, a paging advertisement (PAG-ADV) message. As an example, the PAG-ADV message is transmitted according to the Advanced Air Interface (AAI) according to IEEE 802.16m. The PAG-ADV message includes paged MS information indicating whether each of the terminals of the corresponding paging group is paged. For example, the paged terminal information includes a DID and an action code. The terminal performs network re-entry or ranging for location update according to the operation code. .

Since the PAG-ADV message is transmitted through only one carrier unlike the PGID_Info message, the UE 201 selects and monitors one of all the paging carriers operated by the base station 251 as described above.

If the base station 251 operates the band A and the band B having different band characteristics and the terminal 201 does not support both the band A and the band B and supports only one band, The terminal 201 can not perform the transmission / reception operation in the C4 even if C4 is selected by the calculation formula. Accordingly, the terminal 201 can not receive a paging message for itself. In this case, the UE 201 performs a location update procedure at the BS 251 to notify the BS 1 251 and the parent system, that is, the paging control station, of the paging carrier preferred by the UE 201. The paging message for the terminal 201 is then transmitted over the preferred paging carrier.

If there is a restriction on the band that can be connected to the MS as described above, there will be an overhead of performing a location update procedure. Also, in a situation where a plurality of bands and a plurality of carriers exist, A problem that can not be adequately dispersed can occur.

In order to solve this problem, a paging carrier is determined by using band information of bands supported by the UE in the following embodiments. The band information of the terminal is stored and managed by the paging control station when the terminal enters the idle mode. The idle mode entry procedure may be performed in an MS-initiated or BS-initiated manner.

3 is a message flow diagram illustrating an operation of transmitting band information of a terminal in an idle mode entry procedure according to an embodiment of the present invention. Herein, it is assumed that the terminal 301 supports the band A managed by the base station 331.

Referring to FIG. 3, in step 311, the UE 301 transmits and receives data through the C1 of the BS 331 and transmits a Deregistration Request (DREG-REQ) message for entering the idle mode. In step 313, the base station 331 transmits a state change request message (State Change REQ) message to the paging control station 341 for requesting an idle mode entry (IM Entry) of the UE 301. The status change request message includes band information supported by the UE 301. In the illustrated example, the band information indicates a band A in which the terminal 301 performs the idle mode entry. As another example, the status change request message may indicate all the bands supported by the UE 301. That is, when the terminal 301 supports the band C in addition to the band A, information on the band A and the band C can be included in the terminal state change request message.

In step 315, the paging control station 341 transmits a State Change RSP message to the base station 331 in response to the status change request message. The status change response message may include band information of the terminal 301 transmitted through the status change request message.

In step 317, the base station 331 transmits a DREGistration Response (DREG-RSP) message to the UE 301 to notify that the idle mode entry procedure is completed. In step 319, Transitions to idle mode according to the message. In step 321, the first base station 331 transmits a state change acknowledgment message to the paging control station 341. In step 323, the paging control station 341 transmits paging information of the terminal 301, for example, a paging cycle, a paging offset, a DID, a paging group, information, and the like. The band information is stored in the paging control station 341 in order to be utilized in the paging of the terminal 301. [

Although FIG. 3 will describe a procedure for entering the terminal-initiated idle mode, it is a matter of course that the base station-initiated idle mode entry procedure can also exchange band information between the base station and the paging control station through a similar operation. That is, the BS exchanges band information indicating a band supported by the MS with the paging control station before transmitting a DREG-RSP message for entering the idle mode to the MS.

When a paging of a terminal is requested, the base station refers to the band information of the terminal acquired from the paging control station, and notifies all the bands operated by the base station, a band paging carrier indicating a paging carrier belonging to a band supported by the terminal And provides the information to the terminal in advance. Then, the paging message for the UE is transmitted through the paging carrier selected in the band supported by the UE. The paging carrier information for each band is transmitted through a paging control message, for example, a PGID_Info message, before the paging message is transmitted.

4 is a diagram illustrating a signal flow for transmitting a paging indication for a terminal in a paging listening interval according to an embodiment of the present invention. Herein, it is assumed that the terminal 401 supports a band A operated by the base station 1 431 and the base station 2 435, and the base station 3 432 operates a band other than the band A.

4, in steps 411, 413, 415, the paging control station 441 transmits a paging announce message informing the terminal 401 in the idle mode to transmit a paging advertisement (PAG-ADV) message to the paging control station 431, 433, and 435 managed by the first base station 431 and the second base station 431, respectively. In particular, the paging indication message includes band information about a band through which the paging advertisement message is transmitted. The band information included in the paging indication message is the same as the band information managed by the paging control station 441 with respect to the terminal 401. For example, the band information may be stored in the paging control station 441 by the procedure of FIG.

The paging control station 441 searches the stored band information for the terminal 401 to generate the paging indication message including the band information when the paging for the terminal 401 is requested, And transmits the message to the base stations belonging to the paging group managed by the base station. If there is no stored band information for the terminal 401, the paging control station 441 queries the band information to another paging control station that stores band information for the terminal 401, do.

The base station 1 431, the base station 2 433 and the base station 3 435 transmit a PGID_Info message and a PAG-ADV message according to the information of the terminal 401 indicated by the paging indication message and the band information to which the terminal 401 belongs. . That is, each of the base stations 431, 433, 435 selects a band supported by the terminal 401 among at least one band operated by itself, and selects a carrier to be used as a paging carrier from the carriers belonging to the selected band. In step 417, 419, 421, a PGID_Info message including paging group information of each base station and paging carrier information by band is transmitted from each base station to the terminal 401.

For example, the paging carrier information for each band includes a number of bands operated by the base station, a number of carriers included in each band operated by the base station, a bitmap indicating a paging carrier among the carriers in each band ). Accordingly, there are bitmaps as many as the number of bands to be operated. The size of each bitmap is the same as the number of carriers included in the corresponding band. A bit set to '1' indicates a paging carrier among the carriers included in the corresponding band it means.

As another example, the PGID_Info message may include only paging carrier information of the same band, that is, the band to which the carrier to which the PGID_Info message is transmitted belongs. The paging carrier information is composed of a bitmap (Bitmap_Band) indicating a paging carrier among the carriers in the band. The size of the bitmap is equal to the number of carriers included in the band, and a bit set to '1' Means a paging carrier among the carriers included in the band. At this time, the BS separately configures a PGID_Info message for each band and transmits a PGID_Info message corresponding to the band from the carriers in the band. The MS receives the PGID_Info message from a carrier belonging to a band supported by the MS, and the PGID_Info message includes only paging carrier information belonging to the band. That is, the PGID_Info message includes paging carrier information of a band to which the PGID_Info message is transmitted, that is, a band supported by the terminal.

Since the terminal 401 supports a band operated by the base station 1 431 and the base station 3 435, the terminal 401 receives the PGID_Info message transmitted from the base station 1 431 or the base station 3 435 . In another embodiment, the base station 2 433 may determine from the band information that the terminal 401 does not support the band it operates, and may decide not to transmit the PGID_Info message and the PAG-ADV message.

After the PGID_Info message is transmitted, the first base station 431, the second base station 433, and the third base station 435 transmit PAG-ADV messages in the selected paging carriers in steps 423, 425, and 427, respectively. The PAG-ADV message includes only the information of the terminal 401 determined to receive the PAG-ADV message in each of the selected paging carriers. Since the terminal 401 supports a band operated by the base station 1 431 and the base station 3 435, the terminal 401 receives the PAG-ADV message from the paging carrier selected by the base station 1 431 or the base station 3 435 .

5 is a message flow diagram illustrating an operation in which a terminal selects a paging carrier and receives a paging message in a paging listening interval according to an embodiment of the present invention. Here, the base station 531 operates two bands, band A and band B, band A includes carriers C1, C2, C3, and band B includes carriers C4, C5, C6, and C7. Also, the carriers C1 and C3 belonging to the band A are used as the paging carriers of the band A, and the carriers C4, C5 and C6 belonging to the band B are used as the paging carriers of the band B.

5, in step 511, the paging control station 541 transmits a paging indication message to the BS 501 to instruct the MS 501 to transmit a paging message, that is, a PAG-ADV message. As described above, the paging indication message includes a band supported by the UE 501, for example, a band index indicating a band A. [

In step 513, the base station 531 recognizes that the terminal 501 supports band A through the paging indication message. Then, the base station 531 determines the paging carrier of the terminal 501 according to the predetermined calculation formula. As an example, the calculation formula used to determine the paging carrier is shown in Equation (2).

Here, DID is an identifier uniquely assigned to identify a UE in the idle mode, and N_Band denotes the number of paging carriers of the corresponding band. The terminal 501 can recognize N_Band from the paging carrier information for each band of the bands supported by the terminal 501. For example, if the DID of the UE 501 is '237', since the number of paging carriers of the band A supported by the UE 501 is two, the paging carrier of the UE 501 is determined to be C3.

In step 515, the base station 531 transmits a paging control message, that is, a PGID_Info message. The PGID_Info message includes paging group information of the base station 531 and paging carrier information by band. As an example, the paging carrier information per band includes a bitmap '101' for band A and a bitmap '1110' for band B. As another example, the PGID_Info message may include paging carrier information of the same band. That is, the paging carrier information for each band of the PGID_Info message transmitted from the carrier belonging to the band A includes the bit map '101' for the band A, and the paging carrier information for each band of the PGID_Info message transmitted from the carrier belonging to the band B Includes a bitmap '1110' for the band B. The terminal 501 can receive the PGID_Info message through a carrier belonging to the band to which the terminal 501 is connected, that is, C1.

In step 517, the UE 501 obtains information on the paging carriers C1 and C3 operated by the base station 531 in the band A supported by the UE 501 from the paging carrier information per band included in the PGID_Info message. In step 519, the UE 501 determines a paging carrier C3 to receive a paging message using Equation (2), which is the same as that used in the base station 531, as an example, and sets the determined paging carrier Monitoring. In step 521, the UE 501 receives a paging message, i.e., a PAG-ADV message, transmitted from the base station 531 in the paging carrier C3.

6A and 6B are flowcharts illustrating an operation of a base station transmitting a paging message using band information of a mobile station according to an embodiment of the present invention.

Referring to FIG. 6A, the BS performs a network entry procedure with the MS in step 601, and acquires band information on a band supported by the MS in step 603. FIG. The base station performs data transmission / reception with the mobile station in step 605 and determines whether the mobile station performs an idle mode entry procedure for transition to the idle mode in step 607. [ The idle mode entry procedure includes exchanging a DREG-REQ message and a DREG-RSP message between the UE and the BS. If it is determined that the UE performs the idle mode entry procedure, the BS transmits paging information and band information of the UE to the paging control station in step 609. The paging information and the band information are included in a state change request / response / confirmation message exchanged between the base station and the paging control station. After the terminal is deregistered, in step 611, the base station performs a general base station operation such as performing data transmission / reception with another terminal in active mode.

In step 613 of FIG. 6B, the base station determines whether a paging indication message is received from the paging control station while performing a general base station operation. The paging indication message includes paging information and band information of a terminal to which a base station transmits a paging message. In step 607, the terminal transmitting the paging message may be the same terminal as the terminal that has performed the idle mode entry procedure, or may be another terminal.

When the paging indication message is received, the base station acquires the band information of the terminal from the paging indication message in step 615. Therefore, the BS can receive the band information of the MS from the Paging Control Station even if the MS does not perform the idle mode entry procedure in the BS. In step 617, the base station determines whether the terminal supports a band operated by the base station. In step 619, the base station determines at least one paging carrier to be used in the band and monitors the paging message for reception of the paging message The paging carrier is determined. In step 621, the BS transmits paging carrier information for each band indicating at least one paging carrier determined for the band to the MS in the paging control message. In step 623, the BS transmits paging carrier information for the MS And transmits a paging message.

The operations according to the embodiment of the present invention described above can be realized by providing the base station and the terminal with the memory device storing the program code. That is, the base station and the terminal execute the above-described operation by reading and executing the program code stored in the memory device by a controller composed of a processor or a CPU (Central Processing Unit), and transmitting and receiving necessary information through each other through the transceiver.

As a specific example, the base station may include a controller (processor or CPU (Central Processor Unit)) for generating a paging control message and a paging message and interpreting a paging indication message, and a paging control message And at least one band transceiver for transmitting a paging message. Similarly, the terminal may include a controller (which may be comprised of a processor or a CPU) that interprets a paging control message and a paging message and confirms whether or not the paging message has been paged, and at least one band that receives a paging control message and a paging message under the control of the controller And a transceiver.

7 is a block diagram briefly showing a configuration of a base station according to an embodiment of the present invention.

7, the controller 701 receives the paging indication message from the paging control station, which is an upper system, and obtains the terminal information and the band information included in the paging indication message and stores the information in the memory 703, And generates a paging control message and a paging message for the UE according to the band information. In addition, the controller 701 determines a paging carrier to transmit a paging message for the mobile station in a band supported by the mobile station according to the band information. The paging control message is transmitted through the band transceivers 705 and 709 operated by the base station, and the paging message is transmitted through a paging carrier for the terminal selected by the controller 701 after the paging control message is transmitted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Claims (20)

A method for transmitting paging by a base station operating a plurality of frequency bands in a wireless communication system,
Transmitting a paging control message including paging group information for a paging group to which a base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station to a mobile station in an idle mode;
Determining a paging carrier to transmit a paging message among paging carriers of bands supported by the terminal based on an identifier for identifying the terminal and a number of paging carriers of a band supported by the terminal;
And transmitting the paging message for the UE through the determined paging carrier.
2. The method of claim 1, wherein the band-
And a bitmap indicating at least one paging carrier among the carriers included in a band operated by the base station.
2. The method of claim 1, wherein the band-
And a bitmap indicating at least one paging carrier among carriers belonging to a band to which the paging control message is transmitted among a plurality of bands operated by the base station.
2. The method according to claim 1,
(DID) for identifying the UE to a number (N_Band) of paging carriers of a band supported by the UE is calculated as a paging carrier index of a paging carrier to which the paging message is to be transmitted The paging transmission method comprising:
The paging transmission method according to claim 1, further comprising the step of receiving band information indicating a band supported by the terminal from a paging control station before transmitting the paging control message.
The method according to claim 1,
Acquiring band information indicating a band supported by the terminal when the terminal enters the network;
Further comprising the step of transmitting the band information to the paging control station through a status change request message in order to allow the paging control station to store the band information when the terminal enters the idle mode.
A method for receiving paging from a base station operating a plurality of frequency bands in a wireless communication system,
Receiving a paging control message including paging group information for a paging group to which a base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station;
Determining a paging carrier to be monitored to receive a paging message among paging carriers of bands supported by the terminal based on an identifier for identifying the terminal and a number of paging carriers of a band supported by the terminal;
And receiving the paging message for the UE from the BS through the determined paging carrier.
[8] The method of claim 7,
And a bitmap indicating at least one paging carrier among carriers included in a band operated by the base station.
[8] The method of claim 7,
And a bitmap indicating at least one paging carrier among carriers belonging to a band to which the paging control message is transmitted among a plurality of bands operated by the base station.
8. The method according to claim 7,
(DID) for identifying the mobile station to a number (N_Band) of paging carriers of a band supported by the mobile station by a paging carrier index of a paging carrier to which the paging message is to be transmitted And determining a paging reception time.
An apparatus in a base station for operating a plurality of frequency bands in a wireless communication system and transmitting paging for a terminal in an idle mode,
Generating a paging control message including paging group information for a paging group to which the base station belongs and paging carrier information for each band indicating at least one paging carrier included in a band operated by the base station, A controller for determining a paging carrier to transmit a paging message among paging carriers of bands supported by the terminal based on the number of paging carriers of the band supported by the terminal,
And a transceiver for transmitting the paging control message to a mobile station in an idle mode and transmitting the paging message for the mobile station via the determined paging carrier.
12. The method of claim 11,
And a bitmap indicating at least one paging carrier among the carriers included in a band operated by the base station.
12. The method of claim 11,
And a bitmap indicating at least one paging carrier among carriers belonging to a band to which the paging control message is transmitted among a plurality of bands operated by the base station.
12. The apparatus of claim 11,
(DID) for identifying the mobile station to a number (N_Band) of paging carriers of a band supported by the mobile station by a paging carrier index of a paging carrier to which the paging message is to be transmitted The paging transmission apparatus comprising:
12. The transceiver of claim 11,
Wherein the base station receives band information indicating a band supported by the terminal from the paging control station prior to transmitting the paging control message.
12. The apparatus of claim 11,
Wherein the base station acquires band information indicating a band supported by the terminal when the terminal enters the network and stores the band information in the idle mode of the terminal when the terminal enters the idle mode, To the paging control station.
An apparatus in a terminal for receiving paging from a base station operating a plurality of frequency bands in a wireless communication system,
A transceiver for receiving a paging control message and a paging message from a base station,
From the paging control message, paging group information for the paging group to which the base station belongs and paging carrier information for each band indicating at least one paging carrier included in the band operated by the base station, And determining a paging carrier to be monitored for receiving the paging message among paging carriers of bands supported by the terminal based on the number of paging carriers of the band supported by the terminal, And a controller for controlling the transceiver.
18. The method of claim 17, wherein the band-
And a bitmap indicating at least one paging carrier among carriers included in a band operated by the base station.
18. The method of claim 17, wherein the band-
And a bitmap indicating at least one paging carrier among carriers belonging to a band to which the paging control message is transmitted among a plurality of bands operated by the base station.
18. The apparatus of claim 17,
(DID) for identifying the UE to a number (N_Band) of paging carriers of a band supported by the UE is calculated as a paging carrier index of a paging carrier to which the paging message is to be transmitted Wherein the paging reception apparatus comprises:

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