WO2014101470A1

WO2014101470A1 - System information block broadcasting method, cell-spanning reselection method, and device

Info

Publication number: WO2014101470A1
Application number: PCT/CN2013/083160
Authority: WO
Inventors: 崔素文
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-12-25
Filing date: 2013-09-09
Publication date: 2014-07-03
Also published as: CN103052036A

Abstract

Disclosed are a system information block (SIB) broadcasting method, a cell-spanning reselection method, and a device. The system information block broadcasting method comprises: according to configuration information about each neighbouring cell, an evolved NodeB (eNB) judging whether each neighbouring cell supports a cluster function; adding neighbouring cells not supporting the cluster function in a cluster neighbouring cell black-list parameter list; arranging the cluster neighbouring cell black-list parameter list in the SIB; and broadcasting the SIB including the cluster neighbouring cell black-list parameter list to a user equipment (UE).The present invention can prevent against reselecting a neighbouring cell without a cluster function during the cell-spanning of a cluster UE.

Description

System information block broadcasting method, cross-area reselection method and device

The present invention relates to mobile communication technologies, and in particular, to a System Information Block (SIB) broadcast method, a cross-region reselection method and apparatus. Background technique

The cluster communication system is a dedicated wireless communication system developed for the specific user application scheduling requirements. The user equipment (UE) in the system shares a small number of wireless channels. The cluster UE refers to the support cluster. Functional UE.

With the development of technology, Long Term Evolution (LTE) broadband wireless communication systems can provide clustering functions. In an actual networking application, the LTE cluster function can be configured in the corresponding cell according to the actual networking requirements, that is, the cluster function in the cell coverage of the cluster network to provide the cluster service; and outside the coverage of the cluster network. The cell only has the LTE function and does not configure the cluster function, and does not provide the cluster service.

The cluster UE should receive the cluster service provided by the cluster network preferentially within the coverage of the cluster network, that is, it should preferentially reside in the serving cell with cluster function; in the cluster network coverage, it can reside in the cluster function. Community.

In practical applications, the following occurs: Cell A is adjacent to cell B. As shown in Figure 1, cell A has LTE and cluster functions, but cell B has only LTE function. Since both cell A and cell B have LTE functions and cells are adjacent, cell A and cell B will match each other. In this way, when the cluster UE moves from the cell A (the cell to which the cluster UE currently belongs) to the neighboring cell B, cell reselection occurs, and the cell B is reselected to the neighboring cell B that does not have the cluster function, which affects the normal use of the cluster by the cluster UE. Features. Summary of the invention

In view of this, the main purpose of the embodiments of the present invention is to provide a system information block broadcast method, a cross-area reselection method, and a device, which can avoid reselecting to a neighboring cell without a cluster function when the cluster UE spans.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a system information block SIB broadcast method, where the method includes: an evolved Node B (eNB) determines whether each neighboring cell supports a cluster function according to configuration information of each neighboring cell;

Add the neighboring area that does not support the cluster function to the cluster neighboring area blacklist parameter list.

The cluster neighboring blacklist parameter list is placed in the SIB;

The SIB including the cluster neighbor blacklist parameter list is broadcast to the UE.

Preferably, the SIB including the cluster neighboring blacklist parameter list is any one of the system information block type 1 (SIB1) to the SIB13, and the cluster neighboring blacklist parameter list is placed in the SIB. In the extended parameters of the SIB.

Preferably, the SIB including the cluster neighbor blacklist parameter list is a SIB added from SIB1 to SIB13.

Preferably, the cluster neighboring blacklist parameter list includes a same-frequency cluster blacklist cell list and an inter-frequency cluster blacklist cell list;

Correspondingly, the neighboring area that does not support the cluster function is added to the cluster neighboring area blacklist parameter list, which is:

The neighboring cell that does not support the cluster function is the same-frequency cell or the inter-frequency cell, and the same-frequency cell that does not support the cluster function is added to the same-frequency cluster blacklist cell list, and the inter-frequency cell that does not support the cluster function is added. A list of blacklisted cells in a different frequency cluster.

Preferably, after the blacklist parameter list of the cluster neighboring area is placed in the SIB, the method further includes: The SIB4 including the intra-frequency neighbor list and the intra-frequency blacklist cell list, and the SIB5 including the inter-frequency neighbor list and the inter-frequency black list cell list are broadcast to the UE.

The embodiment of the present invention provides a cluster UE cross-area reselection method, where the method includes: the cluster UE receives an SIB that is broadcast by the eNB, including a cluster neighboring blacklist parameter list;

The neighboring cell outside the cell in the cluster neighboring blacklist parameter list is selected as the reselected cell.

Preferably, the SIB including the cluster neighbor blacklist parameter list is any one of SIB1 to SIB13, and the cluster neighbor blacklist parameter list is placed in the extended parameter of the SIB.

Preferably, before the selecting a neighboring cell other than the cell in the blacklist parameter list of the neighboring cell as the reselecting cell, the method further includes:

The cluster UE receives the SIB4 including the same-frequency neighbor list and the same-frequency blacklist cell list broadcasted by the eNB, and the SIB5 including the inter-frequency neighbor list and the inter-frequency black list cell list;

Correspondingly, the neighboring cell outside the cell in the blacklist parameter list of the neighboring cell of the cluster is selected as the reselected cell, as follows:

Select a neighboring cell outside the cell in the blacklist parameter list of the cluster neighboring cell, and the neighboring cell in the same-frequency blacklist cell list and the inter-frequency blacklist cell list as the reselected cell.

Preferably, after the obtaining the cluster neighboring blacklist parameter list from the SIB, the method further includes:

The cluster neighboring blacklist parameter list is stored.

An embodiment of the present invention provides an eNB, where the eNB includes:

The cluster function judging unit is configured to determine whether each neighboring cell supports the cluster function according to the configuration information of each neighboring cell;

The cluster neighboring area blacklist parameter list adding unit is configured to determine the cluster function determining unit The neighboring area that does not support the cluster function is added to the cluster neighboring area blacklist parameter list;

The SIB generating unit is configured to put the cluster neighboring blacklist parameter list generated by the cluster neighboring blacklist parameter list adding unit into the SIB;

The SIB sending unit is configured to broadcast the SIB including the cluster neighbor blacklist parameter list generated by the SIB generating unit to the UE.

An embodiment of the present invention provides a cluster UE, where the cluster UE includes:

The SIB receiving unit is configured to receive, by the eNB, an SIB that includes a cluster neighboring blacklist parameter list;

The cluster neighboring area blacklist parameter list obtaining unit is configured to obtain a cluster neighboring area blacklist parameter list from the SIB received by the SIB receiving unit.

The reselecting the cell selection unit is configured to select a neighboring cell other than the cell in the cluster neighboring blacklist parameter list obtained by the cluster neighboring blacklist parameter list obtaining unit as the reselected cell.

As shown in the above, the technical solution of the embodiment of the present invention includes: the eNB determines whether each neighboring cell supports the cluster function according to the configuration information of each neighboring zone; and adds the neighboring zone that does not support the clustering function to the cluster neighboring zone blacklist parameter list; The cluster neighboring blacklist parameter list is placed in the SIB; the SIB including the cluster neighboring blacklist parameter list is broadcast to the UE; the cluster UE receives the SIB including the cluster neighboring blacklist parameter list broadcast by the eNB; and obtains from the SIB List of blacklist parameters in the neighboring cell of the cluster; select the neighboring cell outside the cell in the blacklist parameter list of the neighboring cell of the cluster as the reselected cell. Thereby, it is possible to avoid reselection to a neighboring cell that does not have a cluster function when the cluster UE spans. DRAWINGS

FIG. 1 is a schematic diagram of a cell network configuration;

2 is a flowchart of an implementation of a first embodiment of a SIB broadcast method according to the present invention;

3 is a flowchart of an implementation of a first embodiment of a method for re-selecting a clustered UE according to the present invention; FIG. 4 is a schematic structural diagram of an embodiment of an eNB according to the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of a cluster UE according to the present invention; FIG. 6 is a flowchart of an implementation of a second embodiment of a SIB broadcast method according to the present invention; FIG. 7 is a flowchart of an implementation of a second embodiment of a cluster UE cross-area reselection method according to the present invention. A first embodiment of an SIB broadcast method provided by the present invention is as shown in FIG. 2, where the method includes:

Step 201: The eNB determines, according to the configuration information of each neighboring area, whether the neighboring area supports the cluster function. Step 202: Add the neighboring area that does not support the cluster function to the cluster neighboring area blacklist parameter list. Step 203: Connect the cluster neighbor The zone blacklist parameter list is placed in the SIB;

Step 204: Broadcast the SIB including the cluster neighboring blacklist parameter list to the UE.

Preferably, the SIB including the cluster neighboring blacklist parameter list is any one of SIB1 to SIB13, and the cluster neighbor blacklist parameter list is placed in the extended parameter of the SIB.

Preferably, after the cluster neighboring blacklist parameter list is placed in the SIB, the method further includes:

The SIB4 including the intra-frequency neighbor list and the intra-frequency blacklist cell list, and the SIB5 including the inter-frequency neighbor list and the inter-frequency black list cell list are broadcast to the UE. A first embodiment of a clustered UE cross-area reselection method is provided by the present invention. As shown in FIG. 3, the method includes:

Step 301: The cluster UE receives, by the eNB, a list of cluster neighboring blacklist parameters.

SIB;

Step 302: Obtain a blacklist parameter list of the cluster neighboring area from the SIB.

Step 303: Select a neighboring cell outside the cell in the cluster neighboring blacklist parameter list as the reselection cell.

Preferably, before the selecting a neighboring cell other than the cell in the cluster neighboring blacklist parameter list as the reselecting cell, the method further includes:

The cluster UE receives the same-frequency neighbor list and the same-frequency blacklist cell list broadcast by the eNB.

SIB4, and SIB5 including an inter-frequency neighbor list and an inter-frequency blacklist cell list;

Select the cluster neighboring blacklist parameter list (including the same-frequency cluster blacklist cell list and the inter-frequency cluster blacklist cell list), and the same-frequency blacklist cell list in SIB4 and the inter-frequency blacklist cell in SIB5. The neighboring cells outside the cell in the list serve as reselected cells.

Preferably, after the obtaining the cluster neighboring blacklist parameter list from the SIB, the method further includes: storing the cluster neighboring blacklist parameter list.

An embodiment of an eNB provided by the present invention, as shown in FIG. 4, the eNB includes: a cluster function determining unit 401, configured to determine, according to configuration information of each neighboring cell, whether each neighboring cell supports a cluster function;

The cluster neighboring area blacklist parameter list adding unit 402 is configured to add the neighboring area that is not supported by the cluster function determining unit to the cluster neighboring area blacklist parameter list;

The SIB generating unit 403 is configured to place the cluster neighboring blacklist parameter list generated by the cluster neighboring blacklist parameter list adding unit in the SIB; The SIB sending unit 404 is configured to broadcast the SIB including the cluster neighbor blacklist parameter list generated by the SIB generating unit to the UE.

Preferably, the SIB including the cluster neighboring blacklist parameter list is any one of SIB1 to SIB13, and the cluster neighboring blacklist parameter list is placed in the extended parameter of the SIB, or the cluster neighbor is included. The SIB of the area blacklist parameter list is a new SIB other than SIB1 to SIB13.

Preferably, the cluster neighboring blacklist parameter list includes a same-frequency cluster blacklist cell list and an inter-frequency cluster blacklist cell list; the cluster neighboring blacklist parameter list adding unit 402 is further configured to determine a neighbor that does not support the cluster function. Is the same-frequency cell or the inter-frequency cell, and the same-frequency cell that does not support the cluster function is added to the same-frequency cluster blacklist cell list, and the inter-frequency cell that does not support the cluster function is added to the inter-frequency cluster blacklist cell list. .

Preferably, the SIB sending unit 404 is further configured to broadcast, to the UE, the SIB4 including the intra-frequency neighbor list and the intra-frequency black list cell list, and the SIB5 including the inter-frequency neighbor list and the inter-frequency black list cell list.

In a practical application, the cluster function determining unit 401, the cluster neighboring blacklist parameter list adding unit 402, the SIB generating unit 403, and the SIB transmitting unit 404 may be configured by a central processing unit (CPU) in the eNB, and a digital signal. processor (DSP, Digital Signal processor) or a programmable logic array bad ^{1 J (FPGA, Field - programmable} Gate array) implementation.

A cluster UE provided by the embodiment of the present invention, as shown in FIG. 5, the cluster UE includes:

The SIB receiving unit 501 is configured to receive, by the eNB, an SIB that includes a cluster neighboring blacklist parameter list;

The cluster neighboring blacklist parameter list obtaining unit 502 is configured to obtain a cluster neighboring blacklist parameter list from the SIB received by the SIB receiving unit.

The reselection cell selection unit 503 is configured to select a cluster neighboring blacklist parameter list obtaining unit. The neighboring cell outside the cell in the obtained cluster neighboring blacklist parameter list is used as the reselected cell.

Preferably, the SIB receiving unit 501 is further configured to receive, by the eNB, an SIB4 including a co-frequency neighbor list and an intra-frequency blacklist cell list, and an SIB5 including an inter-frequency neighbor list and an inter-frequency blacklist cell list;

The reselection cell selection unit 503 is configured to select a cell other than the cell in the cluster neighboring blacklist parameter list, and the same-frequency blacklist cell list in the SIB4 and the neighboring cell in the inter-frequency blacklist cell list in the SIB5. As a reselected cell.

In an actual application, the SIB receiving unit 501, the cluster neighboring blacklist parameter list obtaining unit 502, and the reselecting cell selecting unit 503 may be implemented by a CPU, a DSP, or an FPGA in the cluster UE.

A second embodiment of the SIB broadcast method provided by the present invention, as shown in FIG. 6, the method includes:

Step 601: The eNB determines, according to the configuration information of each neighboring cell, whether the neighboring cell supports the cluster function. The configuration information is set when the cell neighboring cell is configured, and the configuration information indicates whether each neighboring cell supports the cluster function.

Step 602: Determine whether the neighboring cell that does not support the cluster function is the same-frequency cell or the inter-frequency d and the area, and add the same-frequency cell that does not support the cluster function to the same-frequency cluster blacklist cell list, and the cluster function is not supported. The inter-frequency cell is added to the inter-frequency cluster blacklist cell list;

Here, the cells in the same-frequency cluster blacklist cell list are identified by the physical cell's sequence number (IDentity); the cells in the inter-frequency cluster blacklist cell list are identified by the physical cell's serial number (IDentity), and each cell's The downlink carrier frequency is also explained.

Step 603: The cluster neighboring blacklist parameter list including the same-frequency cluster blacklist cell list and the inter-frequency cluster blacklist cell list is placed in the SIB;

Here, the SIB including the cluster neighboring blacklist parameter list is any one of SIB1 to SIB13, and the cluster neighboring blacklist parameter list is placed in the extended parameter of the SIB; or The SIB including the cluster neighbor blacklist parameter list is a new SIB other than SIB1 to SIB13.

The cluster parameters are generally selected in the extended parameters of the SIB (here, SIB1-SIB13 specified in the LTE R9 protocol version) or in the new system information block type (unlike the SIB1-SIB13 specified in the LTE R9 protocol version). At least one system information block can be arbitrarily expanded according to actual conditions, and the newly added cluster neighbor blacklist parameter list also belongs to the cluster parameter category. Here, it can be assumed that the newly added cluster neighbor blacklist parameter list is placed in the SIBX (in the extended parameter of SIB1-SIB13, or in the newly added SIB).

Step 604: Broadcast an SIB including a cluster neighboring blacklist parameter list (including a same-frequency cluster blacklist cell list and an inter-frequency cluster blacklist cell list) to the UE, and include an intra-frequency neighbor list and an intra-frequency blacklist cell list. And SIB5 including an inter-frequency neighbor list and an inter-frequency blacklist cell list.

A second embodiment of a cluster UE cross-area reselection method is provided by the present invention. As shown in FIG. 7, the method includes:

Step 701: The cluster UE receives, by the eNB, a list of cluster neighboring blacklist parameters.

The SIB, the SIB4 including the intra-frequency neighbor list and the intra-frequency blacklist cell list, and the SIB5 including the inter-frequency neighbor list and the inter-frequency black list cell list;

Step 702: Obtain a cluster neighboring blacklist parameter list from the SIB, and store the cluster neighbor blacklist parameter list.

Step 703: Select a cell in the cluster neighboring blacklist parameter list (including the same-frequency cluster blacklist cell list and the inter-frequency cluster blacklist cell list), and the same-frequency blacklist cell list in SIB4 and the inter-frequency in SIB5. The neighboring cell outside the cell in the blacklisted cell list serves as a reselected cell.

When the cluster UE resides in the cluster cell (the cell with the cluster function), as long as the cluster cell exists in the neighboring cell, the cluster UE does not reselect to the non-clustered cell according to the stored cluster neighbor blacklist parameter list (not available) Cluster function cell); when cluster UE moves to cluster network coverage When the cluster service is not available, you can choose to camp on the non-clustered cell. When the UE resides in the non-clustered cell, the cluster UE will reselect the cluster cell as its camping cell as long as there is a cluster cell in the appropriate cell.

It can be clearly seen from the above description of the cell reselection of the clustered UE that, within the coverage of the cluster network, the cluster UE preferentially accepts the cluster service provided by the cluster network, and outside the cluster network coverage, the cluster UE will reside. The LTE cell (the cell does not have the cluster function) accepts the LTE service provided by the LTE network.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

claims

1. A system information block (SIB) broadcast method, the method includes:

The evolved base station (eNB) determines whether each neighboring cell supports the cluster function based on the configuration information of each neighboring cell;

Add neighboring cells that do not support the cluster function to the cluster neighbor blacklist parameter list;

Place the cluster neighbor blacklist parameter list in the SIB;

Broadcast the SIB including the cluster neighbor blacklist parameter list to the user equipment (UE).

2. The method according to claim 1, wherein the SIB including the cluster neighbor blacklist parameter list is any SIB from system information block type 1 (SIB1) to SIB13, and the cluster neighbor blacklist parameter list Placed in the extension parameters of the SIB.

3. The method according to claim 1, wherein the SIB including the cluster neighbor blacklist parameter list is a newly added SIB other than SIB1 to SIB13.

4. The method according to claim 1, wherein,

The cluster neighbor cell blacklist parameter list includes an intra-frequency cluster blacklist cell list and an inter-frequency cluster blacklist cell list;

Correspondingly, the neighbor cells that do not support the cluster function are added to the cluster neighbor cell blacklist parameter list, as follows:

Determine whether the neighboring cells that do not support the clustering function are same-frequency cells or inter-frequency cells with this cell, add the same-frequency cells that do not support the clustering function to the same-frequency cluster blacklist cell list, and add the inter-frequency cells that do not support the clustering function to the same-frequency clustering blacklist. Inter-frequency cluster blacklist cell list.

5. The method according to any one of claims 1 to 3, wherein after placing the cluster neighbor blacklist parameter list in the SIB, the method further includes:

SIB4 including the intra-frequency neighbor cell list and the intra-frequency blacklist cell list, and SIB5 including the inter-frequency neighbor cell list and the inter-frequency blacklist cell list are broadcast to the UE.

6. A cluster UE cross-area reselection method, the method includes: The cluster UE receives the SIB broadcast by the eNB including the cluster neighbor cell blacklist parameter list;

Get the cluster neighbor blacklist parameter list from SIB;

Select a neighboring cell other than the cell in the cluster neighbor blacklist parameter list as the reselection cell.

7. The method according to claim 6, wherein the SIB including the cluster neighbor blacklist parameter list is any one of SIB1 to SIB13, and the cluster neighbor blacklist parameter list is placed in an extension of the SIB parameters.

8. The method according to claim 6, wherein the SIB including the cluster neighbor blacklist parameter list is a newly added SIB other than SIB1 to SIB13.

9. The method according to any one of claims 6 to 8, wherein before selecting a neighboring cell outside the cell in the cluster neighbor blacklist parameter list as the reselection cell, the method further includes:

The cluster UE receives the SIB4 including the intra-frequency neighbor cell list and the intra-frequency blacklist cell list broadcast by the eNB, and the SIB5 including the inter-frequency neighbor cell list and the inter-frequency blacklist cell list;

Correspondingly, the selection of neighboring cells outside the cells in the cluster neighbor blacklist parameter list as the reselection cell is:

Select the neighboring cells outside the cells in the cluster neighbor cell blacklist parameter list, as well as the cells in the intra-frequency blacklist cell list and the inter-frequency blacklist cell list as reselection cells.

10. The method according to claim 6, wherein after obtaining the cluster neighbor blacklist parameter list from the SIB, the method further includes:

Store the cluster neighbor blacklist parameter list.

11. An eNB, the eNB includes:

The cluster function judgment unit is configured to determine whether each neighboring cell supports the cluster function based on the configuration information of each neighboring cell;

The cluster neighbor blacklist parameter list adding unit is configured to add the neighbor cells determined by the cluster function judgment unit that do not support the cluster function to the cluster neighbor blacklist parameter list; The SIB generation unit is configured to place the cluster neighbor blacklist parameter list generated by the cluster neighbor blacklist parameter list adding unit into the SIB;

The SIB sending unit is configured to broadcast the SIB generated by the SIB generating unit and including the cluster neighbor cell blacklist parameter list to the UE.

12. A cluster UE, the cluster UE includes:

The SIB receiving unit is configured to receive the SIB broadcast by the eNB and including the cluster neighbor blacklist parameter list;

The cluster neighbor blacklist parameter list acquisition unit is configured to acquire the cluster neighbor blacklist parameter list from the SIB received by the SIB receiving unit;

The reselection cell selection unit is configured to select a neighboring cell other than the cell in the cluster neighbor cell blacklist parameter list obtained by the cluster neighbor cell blacklist parameter list acquisition unit as the reselection cell.