WO2013071760A1

WO2013071760A1 - Transmit diversity controlling method and system and radio network controller

Info

Publication number: WO2013071760A1
Application number: PCT/CN2012/077676
Authority: WO
Inventors: 史莉荣; 贺美芳
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-11-16
Filing date: 2012-06-27
Publication date: 2013-05-23
Also published as: CN103117783B; CN103117783A

Abstract

Disclosed are a transmit diversity controlling method and system. The method comprises: a radio network controller sending a control message to a receiving end thereof, the control message carrying indication information about whether an F-PCICH uses an STTD; and using the indication information as a reference for the receiving end in selecting whether to activate transmit diversity. By means of the technical solutions provided by the present invention, the problem in the related art that no corresponding provisions about how to control the transmit diversity of the F-PCICH are provided when a user equipment is merely configured with a dedicated channel is solved.

Description

Transmit diversity control method, system and radio network controller

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a method and system for controlling transmit diversity. BACKGROUND OF THE INVENTION Multi-antenna technology achieves higher system capacity, wider cell coverage, and better quality of service by using multiple antennas at the transmitting end and/or the receiving end. In implementation, multiple antennas at the transmitting end and/or the receiving end can be used to implement either transmit or receive diversity or spatial multiplexing. The transmit diversity technique is an anti-fading technique in the field of wireless communication in which at least two signals containing the same information are transmitted at the transmitting end. These signals carrying the same information are derived from at least two mutually independent signal sources. The transmit diversity technology can be divided into three basic types: space, frequency, and time, depending on the structure and statistical characteristics of the transmitted signal samples and the radio resources it occupies. It can also be any one or more of the three types. The combination of the three basic types is now described in detail. The so-called spatial diversity refers to the use of different locations (spaces) of different transmission locations, and the signal is irrelevant in statistical characteristics when it reaches the receiving end after the channel is experienced, and the anti-fading function is realized. The so-called frequency diversity refers to the function of anti-fading (frequency selective) by using the statistically uncorrelated characteristics of the signals in different frequency bands after fading channels, that is, the difference in statistical characteristics of fading in different frequency bands. In implementation, the information to be transmitted may be separately modulated on a carrier with no frequency correlation for transmission. The so-called time diversity refers to the use of a random fading signal. When the time interval of the sampling points is sufficiently large (greater than the coherence time of the transmission channel), the fading between the samples is statistically uncorrelated, that is, using the statistical characteristics of temporal fading. The difference is to achieve resistance to time-selective fading. The transmit diversity technology is classified into an open loop transmit diversity mode and a closed loop transmit diversity mode according to whether the receiving end needs to feed back the diversity of the transmit end. In the open-loop transmit diversity mode, the receiving end does not feed back any additional transmission-related information to the transmitting end, and the transmitting end can perform transmission diversity by using the corresponding coding technique (for example, simple space-time coding). In the closed-loop transmit diversity mode, the receiving end needs to use feedback channel feedback to the transmitting end with a parameter related to transmit diversity (for example, a precoding vector required for transmitting diversity, indicated by precoding indication information), and the transmitting end uses the post after receiving. The feedback information completes the transmit diversity. In 3GPP Release 10, the uplink open-loop transmit diversity of the HSUPA (High Speed Uplink Packet Access) system user has been completed in the standard (TR25.863), and the closed loop is currently under discussion. Sending related content, introducing PCI (Precoding control) Indication, precoding control indication). At present, the industry has reached a consensus on the channel structure of the uplink closed-loop transmit diversity, and adds an uplink channel, that is, a secondary dedicated physical control channel (S-DPCCH), uploads the pilot frequency value to the network side, and the network side utilizes the received pilot frequency value and The pilot value in the Dedicated Physical Control Channel (DPCCH) is used to understand the weakening of the channel path; in addition, a new downlink channel is added, similar to the Fractional Dedicated Physical Channel (F-DPCH), ie, the Fractional Precoding Indicator Channel (F) -PCICH), used to transmit the precoding value of the uplink transmit diversity to the terminal to achieve better prevention of path weakening. At present, it has been agreed that when the UE configures the F-DPCH, if the F-DPCH activates transmit diversity, the Bay U F-PCICH uses STTD (Space Time Transmit Diversity). However, how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel is not currently regulated. In the related art, how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel has no corresponding problem at present, and no effective solution has been proposed yet. SUMMARY OF THE INVENTION The present invention provides a method and system for controlling transmit diversity, which is not related to how to control the transmit diversity of the F-PCICH in the case where the user equipment is configured with only a dedicated channel. At least solve the above problem. According to an embodiment of the present invention, a method for controlling transmit diversity is provided, including: a radio network controller sending a control message to a receiving end thereof, wherein the control message carries a fractional precoding indicating whether the channel F-PCICH is empty or not The indication information of the diversity STTD is sent; the indication message is used for the receiving end to select whether to activate the basis of the transmission diversity. In the above method, the receiving end comprises at least one of the following devices: a user equipment, a Node B, and a drift radio network controller. In the foregoing method, when the receiving end is the user equipment, the user equipment selects whether to activate the transmit diversity according to the indication information, and includes: when the indication information is that the F-PCICH uses the STTD, the user equipment configures the link corresponding to the F-PCICH to use the STTD. In the above method, the user equipment selects whether to activate the transmit diversity according to the indication information, and further includes: the user equipment sets the STTD indication corresponding to the link corresponding to the F-PCICH. In the above method, the control message is a Uu interface message, where the Uu port is an interface between the radio network controller and the user equipment. In the above method, the control message includes at least one of the following: a radio bearer setup message, a radio bearer reconfiguration message, an active set update message, a radio resource control setup message, and a new control message. In the foregoing method, when the receiving end is the Node B, the Node B selects whether to activate the transmit diversity according to the indication information, and includes: when the indication information is that the F-PCICH uses the STTD, the Node B activates the transmit diversity to perform data transmission. In the above method, the control message is an Iub interface message, where the Iub port is an interface between the radio network controller and the Node B. In the above method, the control message includes at least one of the following: a radio link setup request message, a radio link add request message, a radio reconfiguration request message, and a new control message. In the above method, when the receiving end is a drift radio network controller, the drift radio network controller selects whether to activate the transmit diversity according to the indication information, including: when the indication information is that the F-PCICH uses the STTD, the drift radio network controller activates the transmit diversity, Send data. In the above method, the control message is an Iur interface message, where the Iur port is an interface between the radio network controller and the drift radio network controller. In the above method, the control message includes at least one of the following: a radio link setup request message, a radio link add request message, a radio link reconfiguration request message, and a new control message. In the above method, the radio network controller sends a control message to its receiving end, including: The radio network controller uses the value of the indication field to indicate whether the F-PCICH in the indication message uses the STTD. In the above method, when the indication field is Used, the F-PCICH uses the STTD; when the indication field is Not Used, it indicates that the F-PCICHI does not use the STTD; or when the indication field exists, the F-PCICH uses the STTD; the indication field does not exist. When F-PCICHI does not use STTD; or indicates that F-PCICH does not use STTD when the field is present; indicates that F-PCICHI uses STTD when the indication field does not exist. In the foregoing method, before the radio network controller sends the control message to the receiving end, the method includes: determining, by the radio network controller, that the data quality received by the current link is worse than the data quality threshold, determining that the F-PCICH of the current link uses the STTD When the quality of the data received by the radio network controller from the current link is better than the data quality threshold, it is determined that the F-PCICH of the current link does not use the STTD. According to another embodiment of the present invention, a radio network controller is provided, including: a generating module, configured to generate a control message, where the control message carries a fractional precoding indicating channel F-PCICH whether to use The indication information of the diversity STTD is sent in space; the indication message is used for the receiving end to select whether to activate the transmission diversity; and the sending module is configured to send a control message to the receiving end of the radio network controller. According to still another aspect of the present invention, a control system for transmitting diversity is provided, comprising: a radio network controller and a receiving end thereof: the radio network controller, configured to send a control message to a receiving end thereof, wherein the control The message carries the indication information of whether the fractional precoding indicates that the channel F-PCICH uses the space-time transmit diversity STTD; and the receiving end is configured to select whether to activate the transmit diversity according to the indication information. In the above system, when the receiving end is a user equipment, the user equipment is set to use the STTD corresponding to the link corresponding to the F-PCICH when the indication information is that the F-PCICH uses the STTD. In the above system, the user equipment is further configured to set an STTD indication corresponding to the link corresponding to the F-PCICH. In the above system, when the receiving end is the Node B, the Node B is set to activate the transmit diversity and transmit the data when the indication information is the F-PCICH using the STTD. In the above system, when the receiving end is a drift radio network controller, the drift radio network controller is set to activate transmit diversity and perform data transmission when the indication information is F-PCICH using the STTD. In the embodiment of the present invention, the radio network controller sends to its receiving end whether the F-PCICH is carried or not.

The control message of the indication information of the STTD, correspondingly, the receiving end selects whether to activate the transmit diversity according to the above indication information. That is, the embodiment of the present invention provides a corresponding rule for how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel, and solves the technical problems existing in the related art. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a process flow diagram of a method for controlling transmit diversity according to an embodiment of the present invention; FIG. 2 is a flow chart of a method for a radio network controller to send an F-PCICH to an Node B using an STTD according to an embodiment of the present invention; FIG. 3 is a flowchart of whether a radio network controller sends an F-PCICH using an STTD indication to a user equipment according to an embodiment of the present invention; FIG. 4 is a flowchart of whether a serving radio network controller transmits an F-PCICH to an SD radio station controller using an STTD indication according to an embodiment of the present invention; FIG. 5 is a diagram of a radio network controller dynamically controlling F-PCICH use according to an embodiment of the present invention; Embodiment of the decision of the STTD; FIG. 6 is an embodiment of a decision of the radio network controller to dynamically control the F-PCICH not using the STTD according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of a radio network controller according to an embodiment of the present invention; 8 is a schematic structural diagram of a control system for transmit diversity according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. It is mentioned in the related art that how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel is not currently specified. In order to solve the above technical problem, the embodiment of the present invention provides a control method for transmit diversity, and the processing flow thereof is as shown in FIG. 1 , including: Step S102: The radio network controller sends a control message to its receiving end; The indication information of whether the F-PCICH uses the STTD is carried in the following step; Step S104: The indication message is used by the receiving end to select whether to activate the transmission diversity. In the embodiment of the present invention, the radio network controller sends, to its receiving end, a control message carrying the indication information of whether the F-PCICH uses the STTD, and correspondingly, the receiving end selects whether to activate the transmit diversity according to the indication information. That is, the embodiment of the present invention provides a corresponding rule for how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel, and solves the technical problems existing in the related art. The method for controlling transmit diversity provided by the embodiments of the present invention can be applied to any system that has transmit diversity, and is preferably applicable to an uplink transmit diversity system. In implementation, the receiving end may be any device capable of receiving a control message sent by the radio network controller. In this example, preferably, the receiving end may select at least one of the following devices: user equipment, node B, and drift wireless network control. Device. According to the different devices selected by the receiving end, the corresponding processing methods are also different, and they are respectively described. Case 1: The receiving end is a user equipment. In this case, the indication information is that the F-PCICH uses the STTD, and the user equipment configures the link corresponding to the F-PCICH to use the STTD. Further, the user equipment also sets an STTD indication corresponding to the link corresponding to the F-PCICH. When the receiving end is a user equipment, the control message may use a Uu interface message, where the Uu port is an interface between the radio network controller and the user equipment. The Uu interface message is currently available, for example, at least one of the following: a radio bearer setup message, a radio bearer reconfiguration message, an active set update message, a radio resource control setup message, and a new control message. Case 2: The receiving end is Node B. At this time, the indication information is that the F-PCICH uses the STTD, and the Node B activates the transmit diversity to perform data transmission. The control message may use an Iub interface message, where the Iub port is an interface between the radio network controller and the Node B. Iub port messages are currently available, for example, at least one of the following: a radio link setup request message, a radio link add request message, a radio reconfiguration request message, and a new control message. Case 3: Considering that the user equipment performs the movement between the wireless network controllers, the wireless network controllers involved in the user equipment may be divided into a service radio network controller and a drift radio network controller. The receiving end is a drift radio network controller. At this time, the indication information is that the F-PCICH uses the STTD, and the drift radio network controller activates the transmit diversity to perform data transmission. The control message may use an Iur interface message, where the Iur port is an interface between the radio network controller and the drift radio network controller. Iur port messages are currently available, for example, at least one of the following: a radio link setup request message, a radio link add request message, a radio link reconfiguration request message, and a new control message. In any of the above preferred embodiments, the radio network controller may use the value of the indication field to indicate whether the F-PCICH in the indication message uses the STTD. The specific setting of the indication field can be as follows: When the indication field is Used, it means that the F-PCICH uses STTD; when the indication field is Not Used, it means that F-PCICHI does not use STTD; or when the indication field exists, it means that the F-PCICH uses STTD; when the indication field does not exist, it means F- PCICHI does not use STTD; or indicates that the F-PCICH does not use STTD when the indication field exists; indicates that F-PCICHI uses STTD when the indication field does not exist. In order to make the setting of the indication field clearer and more clear, it will be described in a tabular manner. Tables 1-3 show whether the F-PCICH sent by the radio network controller to the Node B or to the user equipment or to the drift radio network controller through control signaling uses STTD indication information.

Whether the F-PCICH uses the STTD indication information as an indication field, and indicates whether to use/not use according to different values. For example, Used indicates that the use is not used, and Not Used indicates that it is not used. The schematic diagram is as shown in Table 1. Table 1

Or whether the F-PCICH uses the STTD indication information as an indication field. When the indication field exists, it indicates the use, and the absence of the indication indicates that it is not used.

Table 2

Or whether the F-PCICH uses the STTD indication information as an indication field. When the indication field exists, it indicates that it is not used, and there is no indication of use. table 3

In implementation, before the radio network controller sends a control message to its receiving end, it needs to determine the content of its control message. Specifically, when the quality of the data received by the radio network controller from the current link is worse than the data quality threshold (ie, the chain) When the data quality of the road is poor, it is determined that the F-PCICH of the current link uses the STTD; and the quality of the data received by the radio network controller from the current link is better than the data quality threshold (ie, the data quality of the link is good) When), it is determined that the F-PCICH of the current link does not use the STTD. In order to clarify and better understand the control method of the transmit diversity provided by the embodiment of the present invention, a specific embodiment will now be described. Embodiment 1 FIG. 2 illustrates whether the radio network controller sends an F-PCICH to the Node B to use the STTD indication procedure. Specific steps are as follows:

S202. The radio network controller sends a control message to the node B, where the message includes whether the F-PCICH uses the STTD indication information.

S204. The Node B obtains whether the F-PCICH uses the STTD indication information. If the STTD is used, the transmission diversity is activated according to the indication information. If the STTD is not used, the transmission diversity is not activated. Node B then performs the corresponding data transmission. The control message is a radio link setup request message, a radio link add request message, a radio link reconfiguration request message, and the like. You can also use a new message, such as the STTD usage indicator notification. Embodiment 2 FIG. 3 shows whether the radio network controller sends an F-PCICH to the user equipment to use the STTD indication procedure. Specific steps are as follows:

S302. The radio network controller sends a control message to the user equipment, where the message includes whether the F-PCICH uses the STTD indication information. S304: The user equipment acquires whether the F-PCICH uses the STTD indication information, and the user equipment performs configuration. If the F-PCICH uses the STTD, the link corresponding to the F-PCICH uses the STTD, and the STTD indication corresponding to the link is set. The message is the existing Uu port message, such as: radio bearer setup message, radio bearer reconfiguration message, active set update message, radio resource control setup message, and the like. You can also use a new message, such as STTD usage notifications. Embodiment 3 FIG. 4 shows whether the serving radio network controller sends the F-PCICH to the drift radio network controller whether to use the STTD indication procedure. Specific steps are as follows:

S402. The serving radio network controller sends a control message to the drift radio network controller, where the message includes whether the F-PCICH uses the STTD indication information.

S404. The drift radio network controller acquires whether the F-PCICH uses the STTD indication information, and then activates the transmit diversity according to the indication information. If the STTD is not used, the transmit diversity is not activated. After the drift radio network controller obtains whether the F-PCICH uses the STTD indication information, whether the F-PCICH uses the STTD indication information to be transmitted to the Node B controlled by the radio network controller, and whether the Node B uses the STTD indication information according to the F-PCICH. Transmit diversity is activated, and if STTD is not used, transmit diversity is not activated. Node B then performs the corresponding data transmission. The control message is an existing Iur port message: a radio link setup request message, a radio link add request message, a radio link reconfiguration request message, and the like. You can also use a new message, such as STTD usage notifications. Embodiment 4 FIG. 5 is an embodiment in which the radio network controller dynamically controls the F-PCICH to use the STTD decision. Specific steps are as follows:

S502. The radio network controller acquires data sent by the user equipment. S504. If the quality of the data received on a link is poor, the radio network controller determines that the dedicated physical channel of the corresponding link adopts transmit diversity, and the F-PCICH of the corresponding link uses the STTD. The method for evaluating the received data quality is poor, such as the received block error rate is greater than a preset threshold; or the statistical retransmission rate is higher than a preset threshold. Embodiment 5 FIG. 6 is an embodiment of a decision of a radio network controller to dynamically control an F-PCICH not using an STTD. Specific steps are as follows:

S602. The radio network controller acquires data sent by the user equipment.

S604. If the quality of the data received on a link is good, the radio network controller determines that the dedicated physical channel of the corresponding link does not use transmit diversity, and the F-PCICH of the corresponding link does not use the STTD. A method for evaluating the quality of the received data, such as the received block error rate being less than the preset threshold; or the statistical retransmission rate being less than the preset threshold. Based on the same inventive concept, the embodiment of the present invention further provides a radio network controller, and a schematic structural diagram thereof is shown in FIG. 7. The method includes: a generating module 701, configured to generate a control message, where the control message carries a fractional precoding Indicates whether the channel F-PCICH uses the indication information of the space-time transmission diversity STTD; the indication message is used for the receiving end to select whether to activate the transmission diversity basis; the sending module 702 is configured to send a control message to the receiving end of the radio network controller. Based on the same inventive concept, an embodiment of the present invention further provides a control system for transmitting diversity, which is shown in FIG. 8. The wireless network controller 801 and the receiving end 802 thereof: the wireless network controller 801 are set. The control message is sent to the receiving end 802, where the control message carries the indication information of whether the F-PCICH uses the STTD. The receiving end 802 is configured to select whether to activate the transmit diversity according to the indication information. In a preferred embodiment, when the receiving end 802 is a user equipment, the user equipment is configured to configure the link corresponding to the F-PCICH to use the STTD when the indication information is the F-PCICH using the STTD indication information. In a preferred embodiment, the user equipment is further arranged to set the STTD indication corresponding to the link corresponding to the F-PCICH. In a preferred embodiment, when the receiving end 802 is the node B, the node B is set to indicate that the information is

When the F-PCICH uses the STTD indication information, the transmit diversity is activated and data transmission is performed. In a preferred embodiment, when the receiving end 802 is a drift radio network controller, the drift radio network controller is configured to activate transmit diversity and perform data transmission when the indication information is F-PCICH using the STTD indication information. From the above description, it can be seen that the present invention achieves the following technical effects: In the embodiment of the present invention, the radio network controller sends to its receiving end whether the F-PCICH is carried or not.

The control message of the indication information of the STTD, correspondingly, the receiving end selects whether to activate the transmission diversity according to the above indication information. That is, the embodiment of the present invention provides a corresponding rule for how to control the transmit diversity of the F-PCICH in the case where the user equipment is only configured with a dedicated channel, and solves the technical problems existing in the related art. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

1. A method of controlling transmit diversity, comprising:

The radio network controller sends a control message to its receiving end, where the control message carries the indication information of whether the fractional precoding indicating channel F-PCICH uses the space-time transmitting diversity STTD; the indication message is used for the receiving The terminal chooses whether to activate the basis of transmit diversity.

2. The method according to claim 1, wherein the receiving end comprises at least one of the following devices: a user equipment, a Node B, and a drift radio network controller.

The method according to claim 2, wherein, when the receiving end is the user equipment, the user equipment, according to the indication information, whether to select the activation of the transmit diversity, includes:

When the indication information is that the F-PCICH uses the STTD, the user equipment configures the link corresponding to the F-PCICH to use the STTD.

The method according to claim 3, wherein the user equipment selects whether to activate the transmit diversity according to the indication information, and further includes: the STTD corresponding to the link corresponding to the F-PCICH by the user equipment Indicates the settings.

The method according to claim 3 or 4, wherein the control message is a Uu interface message, where the Uu port is an interface between the radio network controller and the user equipment.

6. The method according to claim 5, wherein the control message comprises at least one of the following:

The radio bearer setup message, the radio bearer reconfiguration message, the active set update message, the radio resource control setup message, and the new control message.

The method according to claim 2, wherein, when the receiving end is the node B, the node B selects whether to activate the transmit diversity according to the indication information, including:

When the indication information is that the F-PCICH uses the STTD, the Node B activates the transmit diversity and performs data transmission.

The method according to claim 7, wherein the control message is a lub interface message, wherein the lub port is an interface between the radio network controller and the node B.

9. The method according to claim 8, wherein the control message comprises at least one of the following: A radio link setup request message, a radio link add request message, a radio reconfiguration request message, and a new control message.

10. The method according to claim 2, wherein, when the receiving end is the drift radio network controller, the drift radio network controller selects whether to activate the transmit diversity according to the indication information, including: When the indication information is that the F-PCICH uses the STTD, the drift radio network controller activates the transmit diversity to perform data transmission.

The method according to claim 10, wherein the control message is a lur interface message, wherein the lur port is an interface between the radio network controller and the drift radio network controller.

12. The method according to claim 11, wherein the control message comprises at least one of the following:

A radio link setup request message, a radio link add request message, a radio link reconfiguration request message, and a new control message.

The method according to any one of claims 1 to 4, wherein the radio network controller sends a control message to its receiving end, including: the radio network controller uses the indication field The value indicates whether the F-PCICH in the indication message uses the STTD.

14. The method according to claim 13, wherein

When the indication field is Used, it indicates that the F-PCICH uses STTD;

When the indication field is Not Used, it indicates that the F-PCICHI does not use the STTD; or when the indication field exists, it indicates that the F-PCICH uses the STTD;

When the indication field does not exist, it indicates that the F-PCICHI does not use the STTD; or when the indication field exists, it indicates that the F-PCICH does not use the STTD;

When the indication field does not exist, it indicates that the F-PCICHI uses STTD.

The method according to any one of claims 1 to 4, 6 to 12, wherein, before the wireless network controller sends a control message to its receiving end, the method includes:

Determining, by the radio network controller, that the data quality received by the current link is worse than a data quality threshold, determining that the F-PCICH of the current link uses the STTD;

When the data quality received by the radio network controller from the current link is better than the data quality threshold, it is determined that the F-PCICH of the current link does not use the STTD.

16. A radio network controller, comprising:

a generating module, configured to generate a control message, where the control message carries the indication information of whether the fractional precoding indication channel F-PCICH uses the space-time transmission diversity STTD; the indication message is used by the receiving end to select whether The basis for activating transmit diversity;

And a sending module, configured to send the control message to a receiving end of the radio network controller.

A control system for transmitting diversity, comprising: a radio network controller and a receiving end thereof, wherein the radio network controller is configured to send a control message to a receiving end thereof, where the control message carries The fractional precoding indicates whether the channel F-PCICH uses the indication information of the space-time transmit diversity STTD;

The receiving end is configured to select whether to activate transmit diversity according to the indication information.

The system according to claim 17, wherein, when the receiving end is a user equipment, the user equipment is configured to configure the F- when the indication information is that the F-PCICH uses the STTD The link corresponding to PCICH uses the STTD.

The system according to claim 18, wherein the user equipment is further configured to set an STTD indication corresponding to the link corresponding to the F-PCICH.

The system according to claim 17, wherein, when the receiving end is a Node B, the Node B is configured to activate the transmit diversity when the indication information is that the F-PCICH uses the STTD , for data transmission.

The system according to claim 17, wherein, when the receiving end is a drift radio network controller, the drift radio network controller is configured to use the STTD when the indication information is the F-PCICH , the transmit diversity is activated, and data is sent.