WO2011109987A1

WO2011109987A1 - Method for establishing transport bearer, method and system for transmitting media access control-dedicated flow

Info

Publication number: WO2011109987A1
Application number: PCT/CN2010/075486
Authority: WO
Inventors: 程翔; 刘霖; 柯雅珠
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-03-11
Filing date: 2010-07-27
Publication date: 2011-09-15
Also published as: CN102196501A

Abstract

A method and system for transmitting Media Access Control-dedicated flow (MAC-d flow) are provided in the present invention. Said method includes the following steps: for two cells that can be combined to a dual-cell, a first Radio Network Controller (RNC) transmits a MAC-d flow, which is sent by a terminal from said two cells, to a second RNC through an Interconnection of RNC (IUR) interface transport bearer; and for a single cell of an non-dual-cell, the first RNC transmits each MAC-d flow, which is sent by the terminal from said single cell, to the second RNC through an IUR interface transport bearer corresponding to the MAC-d flow. The method and system in the present invention need not perform amendments or additions on the characteristics of an IUR interface and the configuration information provided on an IUR interface, which are provided in the prior art. Thus a better backwards compatibility is enabled.

Description

Transmission bearer establishment method, dedicated media access control flow transmission method and system

Technical field

The present invention relates to a wireless communication system, and more particularly to a transmission bearer establishment method, a transmission method and system for a dedicated medium access control flow.

Background technique

In a wireless communication system, an IUR (Interconnection of RNC) interface is an interface used by a radio network controller for signaling and data interaction with other radio network controllers, and is between wireless network subsystems. Interconnected ties.

The Media Access Control-dedicated (MAC-d) Protocol Data Unit (hereinafter referred to as PDU) maps the data stream to the enhanced dedicated channel, which is called the dedicated media access control flow (Media). Access Control-dedicated flow, hereinafter referred to as MAC-d flow). A terminal has one or more dedicated media access control flows (MAC-d flows).

The IUR interface transport bearer (Transport Bearer) provides a dedicated medium access control flow (MAC-d flow) transmission mode between the radio network controllers, and the dedicated media access control flow (MAC-d flow) is transmitted by the IUR interface. To host, pass on the IUR interface.

The goal of high-speed uplink packet access technology is to improve capacity and data throughput in the upstream direction and to reduce hysteresis in dedicated channels. With the development of technology, dual-carrier high-speed uplink packet access technology (this technology enables terminals to transmit data on high-speed uplink packet access technology on two carriers, so that the uplink data rate can be multiplied) is expected to be introduced into existing systems. . The carrier including the high-speed dedicated physical control channel in the dual carrier is called the primary carrier, and the other carrier in the dual carrier is called the secondary carrier. The primary carrier and the secondary carrier are adjacent carriers. The primary carrier and the secondary carrier have their own independent macro diversity, that is, the primary carrier layer is independently soft-switched, and the secondary carrier is independently soft-switched. The number of cells in the active set of the primary carrier soft handover may be different from the number of cells in the active set of the secondary carrier soft handover.

A cell has one and only one carrier, so dual-carrier high-speed uplink packet access technology is applied. At least two cells must be used, one carrier of one cell is used as the primary carrier, and the carrier of the other cell is used as the secondary carrier. Such two cells are called dual-cells.

If the use of the dual-carrier high-speed uplink packet access technology crosses the IUR interface, then the IUR interface will be used to transmit the neighboring cell information between the radio network controllers, and the cell in the radio network controller The configuration information of the possible secondary serving cell is transmitted to another wireless network controller. If the configuration information of the possible secondary serving cell of the cell exists, the cell may be combined with any one of the possible secondary serving cells as a dual-cell. For example, there are two possible secondary serving cells of the cell 100, which are the cell 101 and the cell 102. Then: Cell 100 and cell 101 can be combined into a dual-cell, and cell 100 and cell 102 can be combined into a dual-cell.

In the prior art, if the dual-carrier high-speed uplink packet access technology is used across the IUR interface, the dual-carrier high-speed uplink packet access technology uses the transport bearer to transmit the IUR interface dedicated media access control flow, which is: receiving from a cell A dedicated media access control flow (MAC-d flow) sent by the terminal is carried by an IUR interface transport bearer (Transport Bearer), which is transmitted on the IUR interface, and the IUR interface transport bearer (Transport Bearer) is wasteful.

Summary of the invention

The present invention provides an IUR interface transmission bearer establishment method, a dedicated media access control flow transmission method and system, to achieve the purpose of saving IUR interface transport bearer resources.

In order to solve the prior art problem, the present invention provides a dedicated media access control streaming method, including:

For two cells in the first radio network controller that can be combined into a dual cell, the first radio network controller uses a radio network controller to interconnect the IUR interface to transmit the same identity transmitted by the bearer transmission terminal from the two cells. The dedicated media access control flow is sent to the second radio network controller.

The above method may further have the following features, the method further comprising: for each single cell of the non-two-cell in the first radio network controller, for each dedicated media access control flow sent by the terminal from the single cell The first radio network controller transmits, by using an IUR interface transmission bearer corresponding to the dedicated media access control flow, the dedicated media access control flow to the second radio network control The above method may also have the following features, and the method further includes:

The second radio network controller establishes an IUR interface transmission bearer for the same dedicated media access control flow sent by the terminal from the two cells;

The first radio network controller uses an IUR interface to transmit a same dedicated medium access control flow sent by the bearer transmission terminal from the two cells to the second radio network controller, where the first radio network control The IUR interface transmission bearer established by the second radio network controller transmits a dedicated media access control flow corresponding to the IUR interface transmission bearer to the second radio network controller.

The method may further include: determining, by the second radio network controller, whether cells in the first radio network controller can be combined into a dual cell according to configuration information of possible secondary serving cells in the first radio network controller .

The invention also provides a method for establishing an IUR interface transmission bearer, including:

The second radio network controller establishes an IUR interface transport bearer for the same dedicated medium access control flow sent by the terminal from the two cells to the two cells in the first radio network controller that can be combined into two cells.

The method may further include: determining, by the second radio network controller, whether cells in the first radio network controller can be combined into a dual cell according to configuration information of possible secondary serving cells in the first radio network controller.

The above method may further include: for a single cell in the first radio network controller that cannot be combined into a dual cell, the second radio network controller is each dedicated media access that the terminal sends from the single cell The control flow establishes an IUR interface transport bearer. The present invention also provides a dedicated media access control streaming system, including:

a first radio network controller, configured to transmit, to the two radio network controllers, two cells that can be combined into two cells, using an IUR interface to transmit the same dedicated medium that the bearer transmission terminal transmits from the two cells Access control flow to the second radio network controller.

The above system may also have the following features, the first radio network controller is further configured to: to a single cell of the non-dual cell in the first radio network controller, to the terminal from the single small Each dedicated medium access control flow sent in the zone transmits the dedicated media access control flow to the second radio network controller using an IUR interface transport bearer corresponding to the dedicated media access control flow.

The system may further have the following features, the system further includes a second radio network controller, where the second radio network controller is configured to be two cells in the first radio network controller that can be combined into a dual cell, The terminal establishes an IUR interface transmission from the same dedicated medium access control flow sent in the two cells;

The first radio network controller is configured to: when transmitting, by using an IUR interface, the same dedicated medium access control flow sent by the bearer transmission terminal from the two cells to the second radio network controller, using the The IUR interface transport bearer established by the radio network controller transmits a dedicated media access control flow corresponding to the IUR interface transport bearer to the second radio network controller.

The foregoing system may further have the following feature, the second radio network controller is further configured to determine, according to configuration information of a possible secondary serving cell in the first radio network controller, whether the cell in the first radio network controller can Combined into two communities.

In summary, the present invention provides a dedicated media access control flow transmission method and system, for a dual-cell (Dual-cell) received by a terminal to send a dedicated media access control flow (MAC-d flow ), because the service quality characteristics are close, it is placed on an IUR interface transport bearer (Transport Bearer) to save the IUR interface transport bearer resources. In addition, some cells independently use an IUR interface transport bearer (Transport) Bearer), the dedicated media access control flow (MAC-d flow) sent by the terminal is transmitted on the IUR interface. The present invention does not need to be revised or added in the characteristics of the IUR interface provided by the prior art and the configuration information that can be provided on the IUR interface, and the backward compatibility is good.

BRIEF abstract

1 is a schematic diagram of a scenario of Embodiment 1 of the present invention;

Fig. 2 is a view showing the processing steps of the embodiment 1 of the present invention.

Preferred embodiment of the invention The implementation of the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.

The core idea of the present invention is that a dedicated media access control flow (MAC-d flow) sent by a terminal for a dual-cell (Dual-cell) is placed on an IUR interface transmission bearer due to the close proximity of service quality characteristics. (Transport Bearer) to carry. Considering the dual-carrier high-speed uplink packet access technology, the primary carrier and the secondary carrier have their own independent macro diversity, and for the non-two-cell (Cell-cell) cell, the non-double-cell (Dual-cell) is received. A dedicated media access control flow (MAC-d flow) sent by the terminal is carried on an IUR interface transport bearer (Transport Bearer) and transmitted on the IUR interface. That is, some cells share an IUR interface transport bearer (Transport Bearer), and some cells independently use an IUR interface transport bearer (Transport Bearer) to transmit a dedicated media access control flow (MAC-d flow) sent by the terminal on the IUR interface. Therefore, the purpose of saving the IUR interface Transport Bearer resources is achieved.

The present invention provides a dedicated media access control flow transmission method, including:

For two cells in the first radio network controller that can be combined into a dual cell, the first radio network controller uses an IUR interface to transmit the same dedicated media access control that the bearer transmission terminal transmits from the two cells. Flow to the second radio network controller. And for each dedicated media access control flow sent by the terminal from the single cell to a single cell of the non-dual cell in the first radio network controller, the first radio network controller uses the dedicated media An IUR interface transport bearer corresponding to the access control flow transmits the dedicated media access control flow to the second radio network controller.

Wherein, for the two cells in the first radio network controller that can be combined into two cells, the second radio network controller is the same dedicated media access control flow that the terminal sends from the two cells. Establishing an IUR interface transmission bearer, where the first radio network controller transmits the dedicated media access control flow corresponding to the bearer transmission by using the IUR interface established by the second radio network controller.

The second radio network controller determines, according to the configuration information of the possible secondary serving cell in the first radio network controller, whether the cells in the first radio network controller can be combined into a dual cell.

The invention also provides a method for establishing an IUR interface transmission bearer, including: The second radio network controller establishes an IUR interface transmission for the same dedicated medium access control flow sent by the terminal from the two cells to two cells in the first radio network controller that can be combined into two cells. Hosted.

The second radio network controller determines, according to the configuration information of the possible secondary service cell in the first radio network controller, whether the cells in the first radio network controller can be combined into two small cells.

Wherein, for a single cell in the first radio network controller that cannot be combined into a dual cell, the second radio network controller establishes, for the terminal, a dedicated media access control flow sent by the terminal from the single cell. The IUR interface transport bearer.

The present invention also provides a dedicated media access control streaming system, including:

a first radio network controller, configured to transmit, to the two radio network controllers, two cells that can be combined into two cells, using an IUR interface to transmit the same dedicated medium that the bearer transmission terminal transmits from the two cells Accessing a control flow to a second radio network controller; for a single cell of the non-dual cell in the first radio network controller, for each dedicated media access control flow sent by the terminal from the single cell And transmitting, by using an IUR interface transmission bearer corresponding to the dedicated media access control flow, the dedicated media access control flow to the second radio network controller.

The system further includes a second radio network controller, where the second radio network controller is configured to pair two cells of the first radio network controller that can be combined into a dual cell, and the terminal is from the terminal The same dedicated medium access control flow sent in the two cells establishes an IUR interface transmission bearer; the first radio network controller is configured to transmit the bearer transmission by using the IUR interface established by the second network controller The IUR interface transmits a corresponding dedicated media access control flow.

The second radio network controller is further configured to determine, according to the configuration information of the possible secondary serving cell in the first radio network controller, whether the cells in the first radio network controller can be combined into a dual cell.

The dedicated media access control stream transmission method provided by the present invention includes:

Step 1: The second radio network controller determines whether it can be combined into a dual cell according to the obtained configuration information of possible secondary serving cells of the cell in the first radio network controller:

If it can be combined into a dual cell, the second radio network controller is the designated terminal from the two small Each dedicated medium access control flow sent in the area establishes an IUR interface transmission bearer, and the same dedicated medium access control flow sent by the terminal from the dual cell uses an IUR interface to transmit bearers; if not, it can be combined into two The dual cell, the second radio network controller establishes an IUR interface transport bearer for each dedicated media access control flow sent by the designated terminal from the single cell.

Step 2: The first radio network controller sends a corresponding dedicated media access control flow to the second radio network controller through the established IUR interface transmission bearer.

Embodiment 1 The setting scenario is as shown in FIG. 1 , and the details are as follows:

The second radio network controller and the first radio network controller are connected through an IUR interface.

The carrier of cell 1 and the carrier of cell 2 are adjacent carriers, and both cell 1 and cell 2 are in node B1. Node B1 is in the first radio network controller.

The carrier of cell 3 is the same as the carrier of cell 2. Cell 3 is in node B2. Node B2 is in the first radio network controller.

The carrier of cell 4 is the same as the carrier of cell 1. Cell 4 is in node B3. Node B3 is in the first radio network controller.

The terminal 1 accesses the dual-carrier uplink high-speed packet access technology in the cell 1, the cell 2, the cell 3, and the cell 4. Terminal 1 has three mac-d flows, which are identified as mac-d flowl, mac-d flow2, and mac-d flow3.

Embodiment 1 describes a process in which the second radio network controller configures the IUR interface transmission bearer, and the first radio network controller transmits the dedicated media access control flow to the second radio network controller through the IUR interface, and the implementation steps are as follows: As shown in Figure 2, the details are as follows:

Step 110: The first radio network controller sends signaling of neighboring cell information to the second radio network controller through the IUR interface. The second radio network controller is caused to obtain configuration information of possible secondary serving cells of cell 1, cell 2, cell 3, cell 4 in the first radio network controller. Specifically:

The possible secondary serving cell of cell 1 is cell 2;

Cell 2 has no possible secondary service cell;

Cell 3 has no possible secondary service cells; Cell 4 has no possible secondary serving cell.

Step 120: According to the obtained configuration information of the possible secondary serving cells of the cell 1, the cell 2, the cell 3, and the cell 4 in the first radio network controller, the second radio network controller determines:

Cell 1 and cell 2 can combine a dual cell (Dual-cell).

Cell 3 cannot combine a dual-cell with any cell.

Cell 4 cannot combine a dual-cell with any cell.

Step 130: The second radio network controller sends the signaling for establishing the IUR interface transmission bearer to the first radio network controller through the IUR interface, and the established IUR interface transport bearer is specifically:

Cell 1 and cell 2, which can be combined into a dual-cell, are one unit, and an IUR interface transmission bearer is established for each mac-d flow sent by the designated terminal from the two cells. That is, the IUR interface transport bearer 1 is established for the mac-d flow1 sent by the terminal 1 received from the cell 1 and the cell 2; the IUR is established for the mac-d flow 2 sent by the terminal 1 received from the cell 1 and the cell 2 The interface transport bearer 2; establishes an IUR interface transport bearer 3 for the mac-d flow 3 sent by the terminal 1 received from the cell 1 and the cell 2.

Each cell that cannot be combined into a dual-cell is a unit, and an IUR interface transport bearer is established for each mac-d flow sent by the designated terminal from the single cell. That is, the cell 3 is a unit, and the IUR interface transport bearer 31 is established for the mac-d flow1 sent by the terminal 1 received from the cell 3; the IUR is established for the mac-d flow2 sent by the terminal 1 received from the cell 3. The interface transport bearer 32; establishes an IUR interface transport bearer 33 for the mac-d flow3 sent by the terminal 1 received from the cell 3. That is, the cell 4 is used as a unit, and the IUR interface transport bearer 41 is established for the mac-d flow1 sent from the terminal 1 received from the cell 4; the IUR is established for the mac-d flow2 sent by the terminal 1 received from the cell 4. The interface transport bearer 42; establishes an IUR interface transport bearer 43 for the mac-d flow 3 sent by the terminal 1 received from the cell 4.

A total of nine IUR interface transport bearers are established, and the transport bearer identifiers are: 1, 2, 3, 31, 32, 33, 41, 42, 43.

Step 140: The first radio network controller transmits the mac-d flow sent by the terminal 1 to the second radio network controller through the IUR interface transmission bearer. Specifically:

The first radio network controller receives the mac-d flow1 sent by the terminal 1 from the cell 1, first The radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transmission bearer 1;

The first radio network controller receives the mac-d flow2 sent by the terminal 1 from the cell 1, and the first radio network controller transmits the bearer 2 through the IUR interface to the second radio network controller.

The first radio network controller receives the mac-d flow3 sent by the terminal 1 from the cell 1, and the first radio network controller transmits the bearer 3 through the IUR interface to the second radio network controller;

The first radio network controller receives the mac-d flow1 sent by the terminal 1 from the cell 2, and the first radio network controller transmits the bearer through the IUR interface, and sends the mac-d flow1 to the second radio network controller.

The first radio network controller receives the mac-d flow2 sent by the terminal 1 from the cell 2, and the first radio network controller transmits the bearer 2 through the IUR interface to the second radio network controller;

The first radio network controller receives the mac-d flow3 sent by the terminal 1 from the cell 2, and the first radio network controller transmits the bearer 3 through the IUR interface to the second radio network controller;

The first radio network controller receives the mac-d flow1 sent by the terminal 1 from the cell 3, and the first radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transport bearer 31.

The first radio network controller receives the mac-d flow2 sent by the terminal 1 from the cell 3. The first radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transport bearer 32.

The first radio network controller receives the mac-d flow3 sent by the terminal 1 from the cell 3, and the first radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transport bearer 33;

The first radio network controller receives the mac-d flow1 sent by the terminal 1 from the cell 4, and the first radio network controller sends the mac-d flow1 to the second non-transport through the IUR interface transport bearer 41. Line network controller

The first radio network controller receives the mac-d flow2 sent by the terminal 1 from the cell 4, and the first radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transport bearer 42.

The first radio network controller receives the mac-d flow3 sent by the terminal 1 from the cell 4, and the first radio network controller transmits the mac-d flow1 to the second radio network controller through the IUR interface transport bearer 43.

Industrial applicability

Compared with the prior art, the present invention does not need to be revised or added in the characteristics of the IUR interface provided by the prior art and the configuration information that can be provided on the IUR interface, and the backward compatibility is good.

Claims

Claim

A dedicated medium access control flow transmission method, comprising:

2. The method of claim 1, further comprising: for each of the non-dual cells of the first radio network controller, for each dedicated medium access control flow sent by the terminal from the single cell And the first radio network controller transmits the dedicated media access control flow to the second radio network controller by using an IUR interface transmission bearer corresponding to the dedicated media access control flow.

3. The method of claim 1 further comprising:

The second radio network controller establishes an IUR interface transmission bearer for the same dedicated medium access control flow sent by the terminal from the two cells;

4. The method according to claim 2 or 3, further comprising: the second radio network controller determining the first wireless network according to configuration information of possible secondary serving cells in the first radio network controller Whether cells in the controller can be combined into two cells.

5. A method for establishing an IUR interface transmission bearer, comprising:

6. The method of claim 5, further comprising: the second radio network controller determining the first radio network controller according to configuration information of possible secondary serving cells in the first radio network controller Whether the cells in the middle can be combined into two cells.

The method according to claim 5 or 6, further comprising: a single cell in the first radio network controller that cannot be combined into a dual cell, where the second radio network controller is the terminal An IUR interface transport bearer is established for each dedicated medium access control flow sent in a single cell.

8. A dedicated media access control streaming system, comprising:

a first radio network controller, configured to: use the IUR interface to transmit the same dedicated transmission from the two cells to the two cells of the first radio network controller that can be combined into two cells The media access control flows to the second radio network controller.

9. The system of claim 8, wherein the first radio network controller is further configured to: to a single cell of the non-dual cell in the first radio network controller, to the terminal from the Each dedicated medium access control flow sent in a single cell transmits the dedicated medium access control flow to the second radio network controller using an IUR interface transport bearer corresponding to the dedicated medium access control flow.

10. The system of claim 8 or 9, further comprising a second radio network controller, the second radio network controller configured to: combine the two radio network controllers into two cells Two cells, for the terminal to establish an IUR interface transmission from the same dedicated medium access control flow sent by the two cells;

The first radio network controller is configured to: use the second radio network controller when transmitting, by using an IUR interface, the same dedicated medium access control flow sent by the bearer transmission terminal from the two cells to the second radio network controller The IUR interface transport bearer established by the radio network controller transmits a dedicated media access control flow corresponding to the IUR interface transport bearer to the second radio network controller.

The system of claim 10, wherein the second radio network controller is further configured to determine the first wireless network according to configuration information of possible secondary serving cells in the first radio network controller. Whether cells in the controller can be combined into two cells.