WO2010031276A1

WO2010031276A1 - Paging method for system with large bandwidth and multi-carrier

Info

Publication number: WO2010031276A1
Application number: PCT/CN2009/072811
Authority: WO
Inventors: 韩小江; 毕峰; 袁明; 苟伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2008-09-18
Filing date: 2009-07-17
Publication date: 2010-03-25
Also published as: CN101677428A; CN101677428B

Abstract

A paging method for the system with large bandwidth and multi-carrier, includes a system end carries all types of paging information on a main carrier, comprising paging record list of a whole district, broadcast information modification indication and earthquake tsunami warning system (ETWS) indication information, meanwhile the system end carries the broadcast information modification indication and the ETWS indication information on an assistant carrier, the terminal on the coupling state which is working on the main carrier or the assistant carrier, receives the paging information carried by the carrier on the work carrier, the terminal on the idle state which is residing on the main carrier receives the paging information carried by the main carrier on the main carrier.

Description

Paging method in large bandwidth multi-carrier system

The present invention relates to a wireless communication system, and more particularly to a paging method in a large bandwidth multi-carrier system.

Background technique

The 4G wireless communication system has higher spectral efficiency than the third generation mobile communication system. The goal of the 4G system is to make the mobile user data transmission rate reach 100 Mbit/s before 2010, and the static user data transmission rate reaches 1 Gbit/s. Due to the smooth evolution of mobile communication systems, in order to protect the interests of operators, 4G systems and third-generation mobile communication systems, such as TD-SCDMA (Time Division-Synchronous CDMA) systems or 802.16, are available within a certain period of time. E systems, etc., will be compatible or coexist.

At present, the bandwidth of the 4G wireless communication system can be as high as 100 MHz, and the bandwidth is variable, so that the entire network of the 4G system can flexibly set the system bandwidth of each cell according to service requirements. Among them, the paging information in the 4G system is mainly divided into: Paging Record List and System Info Modification, and the newly proposed ETWS (earthquake tsunami warning system) And so on. The Paging Record List i or information is mainly information of one or more terminals (UEs) in the location area that need to be paged; the System Info Modification field information is mainly broadcast information change indication information. There are two methods for sending a Paging Record List to a terminal in a CONNECT state: The first method is to send a paging message, so that the terminal in the connected state listens to the paging information according to the paging cycle; The system sends a paging command to the terminal that needs paging by means of unicast.

For the 4G system with large bandwidth and multi-carrier, according to the current carrier design method, each carrier can work independently, and there is complete paging information, which can let any terminal work on any carrier, but this design method increases the system overhead. , reducing spectrum utilization and failing to meet the throughput requirements of very large bandwidth systems.

For a large-bandwidth multi-carrier 4G system, when designing with reference to the TD-SCDMA multi-carrier method, each cell has only one primary carrier, and the other carriers belong to the secondary carrier, and there is no common control channel on the secondary carrier, thus being in the secondary carrier. The terminal on the terminal needs to be frequently frequency modulated, otherwise the connection state The terminal cannot receive any public control information and read the paging information. In the modern 3G communication system, the terminal in the idle (IDLE) state needs to read the paging information; the terminal in the connection state reads the aging information in order to obtain the change information of the broadcast information and the ETWS information. Therefore, the multi-carrier design method of TD-SCDMA cannot meet the requirements of 3G and higher-level systems. In addition, the ETWS information is also sent by the paging information. Regardless of the status of all terminals and the carrier on which it is located, the ETWS information is information that must be received in time.

In summary, it is necessary to provide a reasonable large bandwidth system, carrier cooperation, and design method of paging information. Summary of the invention

To solve the problems of the prior art, the present invention provides a paging method in a large bandwidth multi-carrier system.

The present invention provides a paging method in a large-bandwidth multi-carrier system, where the large-bandwidth multi-carrier system includes at least one primary carrier and a plurality of secondary carriers, where the primary carrier and the secondary carrier are in a cell in the system. The working frequency, the primary carrier supports a complete communication process, and the secondary carrier supports the service communication of the terminal in the connected state, the method includes:

The system side carries paging information on the primary carrier, where the paging information includes a Paging Record List, System Info Modification information, and ETWS indication information in the location area; the system side carries paging information on the secondary carrier, and the paging information Includes System Info Modification information and ETWS instructions;

A terminal operating in a connection state on a primary carrier or a secondary carrier receives paging information carried on the carrier on its working carrier, and the terminal in an idle state residing on the primary carrier receives the primary carrier on the primary carrier. Paging information carried. Further, in the above method, the primary carrier is compatible with the terminal of the LTE R8, and the complete common control channel is configured. Further, in the foregoing method, the secondary carrier is not compatible with the terminal of the LTE R8, and the complete common control channel of the LTE-A or the common control channel is not configured.

Further, in the above method, the System Info Modification information is broadcast information change indication information, including system broadcast information change indication information and carrier specific broadcast information change indication. Information.

Further, in the above method, when the broadcast information is changed, the system side carries the broadcast information change indication information on the carrier whose broadcast information is changed, and the terminal that receives the broadcast information change indication information changes the broadcast information. The broadcast information is read on a broadcast channel of the carrier, where: the system end carries broadcast information on each carrier, or only when the broadcast information is carried on the primary carrier, if the broadcast information is changed, the system end is in each carrier The paging information carried on the uplink includes broadcast information change indication information;

At this time, the terminal that has received the broadcast information change instruction information reads the changed broadcast information on the carrier on which it operates, or reads the changed broadcast information from the broadcast channel of the primary carrier.

The system side carries the complete broadcast information on the primary carrier, and when the secondary carrier only carries the carrier-specific broadcast information on the secondary carrier, if the broadcast information is changed, the paging information carried by the system end on the primary carrier includes the system broadcast. The information change indication information, the paging information carried on the secondary carrier includes system broadcast information change indication information and/or carrier-specific broadcast information change indication information;

At this time, the terminal that receives the system broadcast information change indication information reads the changed system broadcast information from the broadcast channel of the primary carrier, and the secondary carrier from which the terminal that receives the carrier-specific broadcast information change indication information operates The changed carrier-specific broadcast information is read on the broadcast channel.

Further, in the above method, the terminal that receives the ETWS indication information reads the ETWS information on the corresponding carrier carrying the ETWS information.

When the system side carries the ETWS information only on the primary carrier, the terminal that receives the ETWS indication information reads the ETWS information from the primary carrier.

When the system side carries the ETWS information on each carrier, the terminal that receives the ETWS indication information reads the ETWS information from the carrier on which it operates.

Further, in the foregoing method, the paging information carried on the primary carrier includes a Paging Record List in a location area, and the Paging Record List includes paging information in an idle state terminal, or includes a paging in an idle state terminal. Information and paging information of the terminal in a connected state on the primary carrier;

The paging information carried on the secondary carrier does not include Paging Record List information, or the Paging Record List information of the terminal working on the carrier is carried on the secondary carrier.

When the paging information carried on the secondary carrier does not include the Paging Record List information, the system The system sends Paging Record List information to the working terminal through the peer-to-peer service mode. The technical solution of the present invention provides a method for cooperative operation between carriers in a multi-carrier system. At the same time, a hierarchical bearer of paging information and a method for indicating a change indication of carrier-specific broadcast information by paging information are proposed, thereby making the system most cost-effective. In this case, the work is simplified, and the frequent frequency modulation work of the terminal and the complexity of the terminal are reduced. BRIEF abstract

1 is a schematic diagram of hierarchical BCH and paging information in a large bandwidth multi-carrier system proposed by the present invention;

2(a) is a flow diagram of a paging information indication system in a large bandwidth multi-carrier system proposed by the present invention;

Figure 2 (b) is a flow chart of the paging of the Paging Record List according to the Paging Record List paging in the location area in the flow shown in Figure 2 (a);

3 is a flow chart of a paging information indicating terminal in a large bandwidth multi-carrier system proposed by the present invention. Preferred embodiment of the invention

The main idea of the present invention is that for a large-bandwidth multi-carrier system, the primary or secondary carrier or the primary and secondary frequency bands can be configured to achieve carrier or frequency band functional grading, wherein the primary carrier or the primary frequency band supports complete communication functions, such as initial connection of the terminal. Incoming and idle state of the terminal, etc.; the secondary carrier or the auxiliary frequency band is only used for the service communication of the terminal in the connected state;

According to the functional characteristics of the primary/secondary carrier or the primary and secondary frequency bands, and the two methods of currently transmitting the Paging Record List to the connection state terminal, the paging information is classified, that is, all the information advertised on the primary carrier, that is, the Paging Record List and The system Info Modification information and the ETWS indication information, the paging information on the secondary carrier is the paging information that the terminal in the connected state on the secondary carrier needs to read, that is, the system Info Modification information and the ETWS indication information, or the terminal on the secondary carrier. Paging Record List information. Specifically, paging information is classified into the following two types:

The first type: carries all types of paging information on the primary carrier, such as Paging Record List, broadcast information change indication, and ETWS indication information of the entire location area; Information change indication and ETWS indication information;

The second type: carries all types of paging information on the primary carrier, such as a Paging Record List, a broadcast information change indication, and an ETWS indication information of the entire location area; the secondary carrier includes a broadcast information change indication, an ETWS indication information, and a secondary carrier. Paging Record List of the terminals carried on each

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments. A multi-carrier large-bandwidth system, which is configured to flexibly configure multiple carriers according to the requirements of the cell, but the cell has at least one primary carrier. In some application scenarios, multiple primary carriers can be configured, and the idle state terminals reside on the primary carrier, and the connection is performed. The terminal of the state can be arbitrarily scheduled. At this time, the bearer information and the working process of the terminal are as follows:

First, let's explain the working process of the multi-carrier system:

Step 201: The system receives the Paging Record List or the broadcast information or the ETWS information of the location area. After receiving the broadcast information, the system proceeds to step 202. If the ETWS information is received, the process proceeds to step 204, and if the Paging Record List of the location area is received. Go to step 205; when the core network generates any one or two or three of the above three types of information, it can be delivered.

Step 202: If the system receives the broadcast information, it determines whether the broadcast information has changed, and if yes, proceeds to step 203, otherwise proceeds to step 206;

Method for judging the change of broadcast information: The system decodes the received broadcast information, and compares the broadcast information stored on the system side with bit bits. If there are different bit positions, or the information block size is different, the broadcast information is considered to have occurred. Change, otherwise, there is no change to the broadcast information.

Step 203: The system side carries the paging information on the carrier whose broadcast information is changed, including the broadcast information change indication information, and then proceeds to step 206;

In this step, the broadcast information change indication may be performed on the carrier whose broadcast information is changed according to the prior art, for example:

When the broadcast information is carried on the primary and secondary carriers, or the broadcast information is only carried on the primary carrier, the paging information carried by the system on each carrier includes the broadcast information change indication information;

When the broadcast information is hierarchically carried on the primary and secondary carriers, that is, the system carries the complete broadcast information on the primary carrier, and the secondary carrier only carries the broadcast information specific to the carrier (for example, the RACH resource of the carrier) The paging information carried on the primary carrier by the system includes the system broadcast information change indication information, and the paging information carried on the secondary carrier is system broadcast when the relatively frequent message is changed (for example, TDD uplink and downlink subframe allocation information). Information change indication information and/or carrier-specific broadcast information change indication information.

Step 204: If the system receives the ETWS information, the paging information carried by the system on each carrier includes the ETWS indication information, and then proceeds to step 206;

The ETWS main notification information is carried on each carrier or only on the primary carrier. When the system has the ETWS type information, the paging information carried on each carrier includes the ETWS indication information. Step 205: The system receives the Paging Record List of the location area, and the paging information carried on the primary and secondary carriers includes the Paging in the location area. Record List;

In this step, the paging information carried on the primary carrier includes a Paging Record List in the location area, which mainly includes a Paging Record List in the idle state terminal, or includes a Paging Record List in the idle state terminal and works on the primary carrier. The Paging Record List of the terminal (connection status). The paging information carried on the secondary carrier does not include the Paging Record List information, or the Paging Record List information of the terminal working on the carrier is carried on the secondary carrier.

In step 205, it is further determined according to the state of the terminal paging by the Paging Record List in the location area, when the paged terminal is in an idle state, it resides on the primary carrier, and receives paging information on the primary carrier, when the terminal When it is in the working state (CON ENT state), the terminal receives paging information on the working carrier. The specific process is shown in Figure 2 (b), including the following steps:

Step A: The system receives the Paging Record List of the location area of a terminal;

Step B: The system determines whether the paged terminal is in an idle state, and if yes, proceeds to step C, otherwise proceeds to step D;

Step C: The Paging Record List of the terminal is carried in the paging information of the primary carrier, and the process ends;

Step D: The Paging Record List of the terminal is carried in the paging information on the working carrier, or is sent to the terminal in a normal service manner.

Step 206: Complete the bearer information of the paging information of each carrier, and send the paging information.

Let me introduce the following: The working process of the multi-carrier terminal: Step 301: Each terminal monitors paging information of a carrier where it is located.

In this step, the paging information mainly monitored by the terminal in the working state is a broadcast information change indication and an ETWS indication information, and the terminal in the working state can monitor such paging information on the control channel. In other embodiments, the terminal in the working state further The Paging Record List information on the carrier on which it is located is monitored; and the terminal in the IDEL state resides on the primary carrier to monitor the complete paging information on the primary carrier, that is, the Paging Record List of the location area, the broadcast information change indication, and the ETWS indication information. The terminal in the IDEL state listens to the Paging Record List of the location area from the primary carrier, and performs subsequent processing according to the prior art;

Step 302: The terminal determines whether there is a broadcast information change indication or an ETWS indication information, and if yes, proceeds to step 303, otherwise ends the process;

In this step, the terminal parses the paging information. When there is broadcast information change indication information or ETWS indication information in the paging information, it is considered that the broadcast information of the system is changed or the ETWS information exists.

Step 303: determining whether the terminal is on the primary carrier, and if yes, proceeding to step 304, otherwise proceeding to step 305;

Step 304: The terminal directly reads the updated broadcast information or reads the ETWS information on the primary carrier where the terminal is located, and ends the process.

Step 305: The terminal reads the updated broadcast information or reads the ETWS information on the secondary carrier where the terminal is located, or the terminal frequency-modulates to read the updated broadcast information or read the ETWS information on the primary carrier, and ends the process.

In the above process, after receiving the broadcast change indication information, the terminal reads the updated broadcast information on the broadcast channel of the carrier on which it is located; or

After receiving the change indication information, the terminal on the primary carrier reads the updated broadcast information on the broadcast channel of the primary carrier, and after receiving the change indication information, the terminal of the secondary carrier hops to the primary carrier, and broadcasts from the primary carrier. Reading updated broadcast information on the channel; or

When receiving the system broadcast information change indication information, the terminal on the primary carrier reads the updated broadcast information on the broadcast channel of the primary carrier, and when the terminal on the secondary carrier receives the system broadcast information change indication information, it hops to the primary carrier. The updated broadcast information is read from the broadcast channel of the primary carrier, and when the terminal on the secondary carrier receives the carrier-specific broadcast information change indication information, the broadcast information is read on the carrier. Reach the update of the broadcast information.

When receiving the ETWS indication information, the terminal reads the ETWS information on the resource location that carries the ETWS indication information; when the ETWS primary notification information is carried on the primary carrier, the terminal may use the ETWS information as indicated in the control channel. The resource or protocol stipulates that the ETWS information occupies a fixed resource and reads the ETWS information. When the terminal works on the secondary carrier, the hopping frequency is required to read the ETWS information on the primary carrier; when the ETWS main notification information is carried on all the carriers. The terminal may specify that the ETWS information occupies a fixed resource of each carrier according to the occupied resources or protocols of the ETWS information indicated by the control channel of each carrier, and reads the ETWS information.

It can be seen from the foregoing embodiments that, in the technical solution of the present invention, based on the cooperative work between carriers in a multi-carrier system, a carrier or band function grading and grading of paging information are proposed, so that paging information on each carrier can be adopted. Indicating the broadcast information change indication of the carrier and the ETWS information, the system simplifies the working process, reduces the frequent frequency modulation work of the terminal and reduces the complexity of the terminal in the most cost-saving manner.

The above described embodiments are merely preferred embodiments for the purpose of fully illustrating the invention, and the scope of the invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of the present invention. The scope of the invention is defined by the claims. Industrial applicability

Compared with the prior art, the technical solution of the present invention provides a method for hierarchical cooperation between primary and secondary carriers in a multi-carrier system, and at the same time, a hierarchical bearer of paging information and a change indication indicating carrier-specific broadcast information by paging information are proposed. The method, so that the system is simplified in the most cost-saving situation, and reduces the frequent frequency modulation work of the terminal and the complexity of the terminal.

Claims

Claim

A paging method in a large-bandwidth multi-carrier system, the large-bandwidth multi-carrier system comprising at least one primary carrier and a plurality of secondary carriers, wherein the primary carrier and the secondary carrier are working in a cell in the system a frequency point, the primary carrier supports a complete communication process, and the secondary carrier supports a service communication of a terminal in a connected state, where the method includes:

The system side carries paging information on the primary carrier, and the paging information carried on the primary carrier includes a paging list Paging Record List, system information modification System Info Modification information, and earthquake tsunami warning information ETWS indication information in the location area;

The system side carries paging information on the secondary carrier, and the paging information carried on the secondary carrier includes System Info Modification information and ETWS indication information;

A terminal operating in a connection state on the primary carrier or the secondary carrier receives paging information carried on the carrier on its working carrier;

A terminal camping on the primary carrier in an idle state receives paging information carried on the primary carrier on the primary carrier.

2. The method of claim 1 wherein said primary carrier is LTE R8 compliant and operates with a complete common control channel.

3. The method of claim 1, wherein the secondary carrier does not support R8 terminal operation and configures a complete common control channel of LTE-A or no common control channel.

4. The method of claim 1 wherein:

The System Info Modification information is broadcast information change indication information, including system broadcast information change indication information and carrier-specific broadcast information change indication information.

5. The method of claim 4, wherein:

When the broadcast information is changed, the system side carries the broadcast information change indication information on the corresponding carrier whose broadcast information is changed, and the terminal that receives the broadcast information change indication information is in the carrier of the broadcast information change The broadcast information is read on the broadcast channel.

6. The method of claim 4 wherein: The system side carries the broadcast information on each carrier, or only carries the broadcast information on the primary carrier. When the broadcast information is changed, the paging information carried by the system end on each carrier includes the broadcast information. Change the indication information;

7. The method of claim 4, wherein:

The system side carries the complete broadcast information on the primary carrier, and when the secondary carrier only carries the carrier-specific broadcast information on the secondary carrier, when the broadcast information is changed, the paging information carried by the system end on the primary carrier includes The system broadcast information change indication information, where the paging information carried on the secondary carrier includes the system broadcast information change indication information and/or the carrier-specific broadcast information change indication information;

8. The method of claim 1, wherein the method further comprises

The terminal receiving the ETWS indication information reads the ETWS information on the corresponding carrier carrying the ETWS information.

9. The method of claim 1 wherein:

The system side carries the ETWS information only on the primary carrier, and the terminal that receives the ETWS indication information reads the ETWS information from the primary carrier.

10. The method of claim 1 wherein:

The system side carries the ETWS information on each carrier, and the terminal that receives the ETWS indication information reads the ETWS information from the carrier on which it operates.

11. The method of claim 1 wherein:

The paging information carried on the primary carrier includes Paging Record List information in the location area, and the Paging Record List information includes paging information of the terminal in an idle state, or includes Paging information of a terminal in an idle state and paging information of a terminal in a connection state on a primary carrier;

12. The method of claim 11 wherein:

When the paging information carried on the secondary carrier does not include the Paging Record List information, the system sends the Paging Record List information to the working terminal through the peer-to-peer service mode.