WO2012019368A1

WO2012019368A1 - Method and apparatus for notifying capability of supporting multi-carrier multiple-input multiple-output

Info

Publication number: WO2012019368A1
Application number: PCT/CN2010/075999
Authority: WO
Inventors: 余波; 贺美芳
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2012-02-16

Abstract

The present invention provides a method and an apparatus for notifying the capability of supporting multi-carrier multiple-input multiple- output (MIMO). When multi-carrier is supported, the number of downlink carriers supporting the MIMO configuration is indicated in a message format for reporting the capability of the cell (710); the message format indicating said number of downlink carriers supporting the MIMO configuration is reported (720). With the method and apparatus for notifying the capability of supporting multi-carrier MIMO in the present invention, the network side can obtain the number of downlink carriers supporting the MIMO configuration, and then can distribute resources reasonably according to the obtained number of downlink carriers supporting the MIMO configuration.

Description

Notification method and device supporting multi-carrier MIMO capability

The present invention relates to the field of communications, and in particular, to a notification method and apparatus supporting multi-carrier multiple-input multiple-output (MIMO) capability. Background technique

In the R7 phase, the WCDMA system introduces Multiple Input Multiple Output (MIMO), and in the R8 phase, DC dual carriers are introduced, but User Equipment (UE) does not support MIMO and DC dual carriers at the same time. In the R9 phase, the UE can support both MIMO and DC dual carriers, and uses Dual Cell MIMO support (MAP) to indicate whether the UE supports MIMO while supporting multiple carriers. These features are greatly introduced. Increased transmission rate. In order to further increase the user's peak rate, more carriers need to be combined for transmission. At the same time, MIMO can be configured on each downlink carrier, but the number of downlink carriers supported by different cells and the downlink carriers that can be configured as MIMO The numbers are not consistent. For example, some base stations (Node b) support the maximum number of downlink carriers to be 4, but MIMO cannot be used when multiple carriers are used. Some Node b cells support the maximum number of downlink carriers to be 3, but they are used more. Only one downlink carrier support is configured for MIMO when the carrier is used.

In the current protocol, the MIMO capability and the multi-carrier capability information of the Node b cell are not displayed, and the number of downlink carriers configured to be MIMO is supported by the Node b cell when the multi-carrier is supported. Therefore, the network side cannot accurately configure the MIMO parameters for the UE. , resources cannot be allocated reasonably. Even if the maximum number of downlink carriers supported by the UE is 4, and the downlink 4 carriers can be configured as MIMO, according to the current protocol, if the network resources are sufficient, the network side cannot give the UE 4 downlink carriers. If MIMO is configured on the top, resources cannot be allocated reasonably and the downlink transmission rate cannot be effectively increased. Summary of the invention

In view of the above, the main object of the present invention is to provide a method and apparatus for supporting multi-carrier MIMO capability, which is configured to support a multi-carrier Node b cell, and support the number of downlink carriers configured to be MIMO, thereby facilitating rational allocation of resources. .

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A notification method supporting multi-carrier MIMO capability, the method comprising:

When multi-carrier is supported, the support configuration is indicated in the message format for reporting the capability of the cell.

The number of downlink carriers of the MIMO; the reporting indicates the message format supporting the number of downlink carriers configured as MIMO.

The method for indicating the number of downlink carriers is:

Extending a cell capability container cell in the audit response message to indicate the number of downlink carriers supported for MIMO configuration; or

A maximum number of carrier-capable cells supporting the auxiliary serving cell configuration MIMO is added to the audit response message to indicate the number of auxiliary downlink carriers supported by the MIMO and their corresponding auxiliary cells; or

A multi-carrier cell MIMO full support indication cell is added to the audit response message, which is used to indicate that all carriers of the cell and its secondary cell support or do not support simultaneous MIMO configuration when configuring multiple carriers.

The method for reporting the message format is:

The audit response is sent to the network side, and the audit response carries the cell that is used to indicate the number of downlink carriers supported to be configured as MIMO.

The method further includes:

And receiving the reported message format, and parsing the number of downlink carriers that are configured to be MIMO, and allocating resources according to the number of downlink carriers that are parsed.

The reporting party is a base station, and the receiving party is a radio network controller. A notification device supporting a multi-carrier MIMO capability, the device comprising a message format extension unit and a message format reporting unit;

The message format extension unit is configured to: when the multi-carrier is supported, indicate, in a message format for reporting the capability of the cell, the number of downlink carriers that are configured to be MIMO, and notify the message format reporting unit of the indication ;

The message format reporting unit is configured to report, according to the indication that the message format extension unit is notified, the message format that supports the number of downlink carriers configured to be MIMO.

When the message format extension unit indicates the number of downlink carriers, it is used to:

When the message format reporting unit reports the message format, it is used to:

The apparatus is coupled to a recipient of the message format, the receiver for:

The reporting party is a base station, and the receiving party is a radio network controller.

The method and the device for supporting the multi-carrier MIMO capability of the present invention enable the network side to know the number of downlink carriers that the Node b cell supports for MIMO, and can be learned according to the knowledge The support configuration is to allocate resources reasonably for the number of downlink carriers of MIMO. DRAWINGS

FIG. 1 is a flowchart of a notification for supporting multi-carrier MIMO capability according to Embodiment 1 of the present invention. FIG. 2 is a flowchart of supporting a multi-carrier MIMO capability according to Embodiment 2 of the present invention. FIG. 3 is a flowchart of supporting multi-carrier MIMO according to Embodiment 3 of the present invention. FIG. 4 is a flowchart of a notification for supporting multi-carrier MIMO capability according to Embodiment 4 of the present invention. FIG. 6 is a flowchart of supporting a multi-carrier MIMO capability according to Embodiment 5 of the present invention. FIG. 6 is a flowchart of Embodiment 6 of the present invention. Notification flow chart of multi-carrier MIMO capability FIG. 7 is a schematic diagram of a notification process supporting multi-carrier MIMO capability according to the present invention;

FIG. 8 is a diagram of a notification apparatus supporting multi-carrier MIMO capability according to Embodiment 1 of the present invention. detailed description

In general, when the Node b cell supports multiple carriers, the Node b supports the number of downlink carriers configured to be MIMO and is sent to the RNC in an interaction message with a Radio Network Controller (RNC). The RNC parses the interaction message from the Node b, and obtains the number of downlink carriers that the Node b cell supports as MIMO.

Specifically, there are various methods for the Node b to configure its own support as the number of downlink carriers of the MIMO to be sent to the RNC in the interaction message with the RNC, such as:

Method 1: Extend the twelfth bit to the fifteenth bit of the Cell Capability Container cell by 4 bits in the AUDIT RESPONSE message, as an indication cell, to indicate the support configuration of the Node b cell. The number of downlink carriers for MIMO. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC. The protocol description of the Cell Capability Container is shown in Table 1:

Information element/group name existence range information element class semantic description Type and reference

Cell Capability Container Bit String (128) Twelfth to Fifteenth: Support Configuration

The maximum number of carriers for MIMO is encoded in binary. The twelfth bit is the most significant bit and the fifteenth bit is the least significant bit. 0 means that when multi-carrier is used, simultaneous configuration of MIMO table is not supported.

Method 2: Add a Max No. of Secondary Cell with MIMO Capability (MIMO) message to the AUDIT RESPONSE message as the number of auxiliary downlink carriers that the Node b cell supports for MIMO. The indicator cell is used to indicate the number of the auxiliary downlink carriers supported by the Node b cell and the corresponding secondary cells. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC. The protocol description of Max No. of Secondary Cell with MIMO Capability is shown in Table 2:

Table 2 Method 3: Add a Multi-Cell MIMO Support indicator cell to the AUDIT RESPONSE message, which is used to indicate that the Node b cell is all in the cell and its secondary cell when configuring multiple carriers. Carriers support simultaneous configuration of MIMO. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC. If all carriers supporting the cell and its secondary cell are configured with MIMO at the same time, the value is MIMO (All MIMO Support); otherwise, the value is MIMO (All MIMO Not Support). The protocol for Multi Cell All MIMO Support is shown in Table 3:

table 3

It can be seen from the above operation that the Node b can carry the support of the MIMO downlink carrier in the interaction message with the RNC and send it to the RNC when the multi-carrier is supported. The RNC can exchange the message from the Node B. Perform analysis to obtain the number of downlink carriers that Node b supports for MIMO.

Specifically, the Node b may extend the twelfth bit to the fifteenth bit of the Cell Capability Container cell by 4 bits in the AUDIT RESPONSE message as an indication cell, and indicate that the Node b cell supports the downlink carrier supported by the MIMO. Number. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC. In addition, the Node b can also add a Max No. of Secondary Cell with MIMO Capability cell to the AUDIT RESPONSE message as an indication cell indicating the number of auxiliary downlink carriers supported by the Node b cell to be MIMO, to indicate the Node. The support of the b cell is configured as the number of auxiliary downlink carriers of MIMO and their corresponding secondary cells. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC.

In addition, the Node B can also add a Multi Cell All MIMO Support indication cell to the AUDIT RESPONSE message to indicate that the Node b cell is configured with multiple carriers, and the carrier of the primary cell and its configured secondary cell supports simultaneous MIMO configuration. If the Node b cell supports multiple carriers, the indication cell is carried in an AUDIT RESPONSE message and sent to the RNC. If all carriers supporting the cell and its secondary cell are configured with MIMO at the same time, the value is All MIMO Support, otherwise the value is All MIMO Not Support.

The technical solutions of the present invention are further elaborated below in conjunction with the accompanying drawings and specific embodiments. Referring to the first embodiment shown in FIG. 1 , when the cell supports the number of downlink carriers configured for MIMO to be 4 (that is, in addition to supporting the MIMO configuration of the local cell, three additional auxiliary cells configured with MIMO may be configured) The Node b that supports the multi-carrier capability carries the Cell Capability Container cell in the AUDIT RESPONSE message sent to the RNC, and the twelfth bit takes the value 0, the thirteenth bit takes the value 1, and the fourteenth bit takes the value 0. The fifteenth bit takes a value of 0; the RNC parses the received AUDIT RESPONSE message, and according to the twelfth to fifteenth bits of the Cell Capability Container cell in the message, the Node b cell support configured to send the message is configured as The number of downlink carriers of MIMO is 4.

Referring to the second embodiment shown in FIG. 2, when the cell supports the number of downlink carriers configured for MIMO to be 3 (that is, in addition to supporting the MIMO configuration in the local cell, two additional secondary cells configured with MIMO can be configured separately), the support is increased. The carrier capable Node b carries the Cell Capability Container cell in the AUDIT RESPONSE message sent to the RNC, and the twelfth bit value is 0, the thirteenth bit takes a value of 0, the fourteenth bit takes a value of 1, and the fifteenth bit takes a value of one; the RNC parses the received AUDIT RESPONSE message and according to the Cell Capability Container cell in the message The twelfth to fifteenth bits can know that the number of downlink carriers configured to be MIMO supported by the Node b cell that sends the message is 3.

Referring to the third embodiment shown in FIG. 3, when the cell supports the number of downlink carriers configured for MIMO is 4 (that is, in addition to supporting the MIMO configuration in the local cell, three additional auxiliary cells configured with MIMO can be configured), the support is more. The carrier-capable Node b carries the Max No. of Secondary Cell with MIMO Capability cell in the AUDIT RESPONSE message sent to the RNC, and sets the value of Max No. of Secondary Cell with MIMO Capability to 3, possibly assisting the serving cell list ( Possible Secondary Serving Cell List ) corresponds to the supported 3 cell IDs.

Referring to the fourth embodiment shown in FIG. 4, when the cell supports the number of downlink carriers configured for MIMO is 3 (that is, in addition to supporting the MIMO configuration in the local cell, two additional auxiliary cells configured with MIMO can be configured separately), the support is increased. The carrier capable Node b carries the Max No. of Secondary Cell with MIMO Capability message in the AUDIT RESPONSE message sent to the RNC, and sets the value of Max No. of Secondary Cell with MIMO Capability to 2, and the Possible Secondary Serving Cell List corresponds to 2 cell IDs supported.

Referring to the fifth embodiment shown in FIG. 5, when the number of downlink carriers configured by the cell to be MIMO is 0 (that is, the MIMO is not supported by the local cell, and the MIMO is not supported by other secondary cells), the multi-capacity capable Node is supported. b The Max No. of Secondary Cell with MIMO Capability cell is not included in the AUDIT RESPONSE message sent to the RNC.

Referring to the sixth embodiment shown in FIG. 6, when the number of multi-carriers supported by the cell is 4 (that is, in addition to supporting the MIMO in the local cell, three auxiliary cells configured with MIMO at the same time) may be additionally configured, and four configured. When the carrier supports simultaneous MIMO configuration, the Node b supporting multi-carrier capability carries the Multi Cell All in the AUDIT RESPONSE message sent to the RNC. MIMO Support cells, and the value of Multi Cell All MIMO Support is All MIMO Support.

It can be seen from the above embodiment that when performing the notification operation of the multi-carrier MIMO capability of the present invention, the overall operation idea can be expressed as shown in FIG. 7. Referring to FIG. 7, FIG. 7 is a schematic diagram of a notification process for supporting multi-carrier MIMO capability according to the present invention, where the process includes the following steps:

Step 710: When the multi-carrier is supported, the number of downlink carriers configured to support MIMO is indicated in the message format for reporting the capability of the cell.

Specifically, the message format used for reporting the cell capability may be the foregoing AUDIT RESPONSE, or other notification messages.

Step 720: Reporting the message format indicating the number of downlink carriers configured to be MIMO.

Specifically, the reported subject may be a relay station in the access network or another device on the user side, in addition to the foregoing Node b. Moreover, the main body that receives the message format may be an operation and maintenance center (OMC) or other device for performing resource or user management, in addition to the foregoing RNC.

In order to realize the operations in the above respective flowcharts, a device as shown in Fig. 8 can be provided. Referring to FIG. 8, FIG. 8 is a diagram of a notification device supporting multi-carrier MIMO capability according to Embodiment 1 of the present invention. The device may be disposed in a Node b or a relay station in an access network or other device on a user side, including a connected message format. Expansion unit, message format reporting unit. The message format extension unit can indicate the number of downlink carriers that are configured to be MIMO in the message format for reporting the capability of the cell when the multi-carrier is supported, and notify the message format reporting unit of the indication. The message format reporting unit can report the message format indicating the number of downlink carriers configured to be MIMO according to the indication of the notification by the message format extension unit.

Certainly, after receiving the message format of the RNC, the receiver can also receive the reported message format, and parse out the number of downlink carriers supported by the MIMO, according to the parsed The number of rows of carriers is allocated resources.

The specific operations that can be implemented by the above units are described in detail in the foregoing process, and are not described herein again.

In summary, the notification technology supporting the multi-carrier MIMO capability of the present invention enables the network side to know the number of downlink carriers supported by the Node b cell to be MIMO, and can be configured according to the obtained support configuration. Reasonably allocate resources for the number of downlink carriers of MIMO.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent flow transformation made by the specification and the drawings of the present invention may be directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Claims

Claim

A notification method for supporting multi-carrier multiple-input multiple-output MIMO capability, the method comprising:

When the multi-carrier is supported, the number of downlink carriers that are configured to be MIMO is indicated in the message format for reporting the capability of the cell; and the message format indicating the number of downlink carriers configured to be MIMO is reported.

2. The method according to claim 1, wherein the method for indicating the number of downlink carriers is:

3. The method according to claim 2, wherein the method for reporting the message format is:

The method according to any one of claims 1 to 3, wherein the method further comprises:

The method according to claim 4, wherein the reporting party is a base station, The receiver is the radio network controller.

A notification device for supporting multi-carrier MIMO capability, wherein the device includes a message format extension unit and a message format reporting unit;

The device according to claim 6, wherein the message format extension unit indicates the number of downlink carriers, and is used to:

The device according to claim 7, wherein when the message format reporting unit reports the message format, it is used to:

9. Apparatus according to any one of claims 6 to 8, wherein the apparatus is connected to a recipient of the message format, the receiver for:

Receiving the reported message format, and parsing the downlink carrier supporting the configuration as MIMO The number is allocated based on the number of downlink carriers analyzed.

10. The apparatus according to claim 9, wherein the reporting party is a base station, and the receiving party is a radio network controller.