US20180110086A1 - Method, Device, and System for Indicating Discontinuous Data Scheduling - Google Patents

Abstract

A method for indicating discontinuous data scheduling includes receiving discontinuous reception (DRX) indication information on an Iur interface; and sending discontinuous scheduling indication information to a base station according to the DRX indication information. A communication system and a radio network control device for implementing the method are also provided.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
• This application is a continuation of U.S. patent application Ser. No. 13/863,110, filed on Apr. 15, 2013. The U.S. patent application Ser. No. 13/863,110 is a continuation of U.S. patent application Ser. No. 12/965,840, filed on Dec. 11, 2010, now U.S. Pat. No. 8,442,565, which is a continuation of International Application No. PCT/CN2009/072226, filed on Jun. 11, 2009, The International Application claims priority to Chinese Patent Application No. 200810067759.6, filed on Jun. 13, 2008, and Chinese Application No. 200810145378.5, filed on Aug. 8, 2008. Each of these documents is incorporated herein by reference.
TECHNICAL FIELD
• The present invention relates to the field of mobile communication technology and, in particular embodiments, to a technology for discontinuous data scheduling.
BACKGROUND
• In order to enable user equipment (UE) in a cell forward access channel (Cell_FACH) state to have a good power saving performance, the UE may perform discontinuous reception (DRX) when receiving data on a high speed downlink shared channel (HS-DSCH). Discontinuous reception performed by the UE in the Cell_FACH state is referred to as enhanced DRX characteristic.
• An Iur interface is an interface for interchanging signaling and data between a radio network controller (RNC) and other RNCs. Two technical solutions may be employed to perform data scheduling on the Iur interface when the following situation exists: a UE supports the enhanced DRX characteristic, a service RNC (SRNC) and a control RNC (CRNC) of the UE are not the same network equipment, and the SRNC does not support the enhanced DRX characteristic and the CRNC supports the enhanced DRX characteristic.
• In Solution I, DRX parameter information is delivered on a broadcast channel. The UE supporting the enhanced DRX characteristic performs discontinuous reception when the UE receives the DRX parameter information on the broadcast channel. When the SRNC dose not support the enhanced DRX characteristic, and the CRNC supports the enhanced DRX characteristic, the CRNC releases a radio resource control (RRC) connection of the UE.
• The release of the RRC connection interrupts services of the UE and therefore influences the continuity of the service of the UE.
• In Solution II, the DRX parameter information is delivered to the UE in a dedicated RRC message, and the UE performs discontinuous reception after receiving the DRX parameter information. If the UE does not receive the DRX parameter information, the UE performs continuous reception.
• Because the CRNC sends the DRX parameter information to the SRNC only after the SRNC notifies the CRNC of capability information that the UE supports the enhanced DRX characteristic. If the SRNC does not support the enhanced DRX characteristic, the SRNC does not notify the CRNC of the capability information that the UE supports the enhanced DRX characteristic. Accordingly, the CRNC does not send the DRX parameter information to the SRNC, and the dedicated RRC message delivered by the SRNC does not contain the DRX parameter information. As a result, the UE performs continuous reception. Therefore, when the SRNC does not support the enhanced DRX characteristic, the UE cannot use the enhanced DRX characteristic.
SUMMARY
• Embodiments of the present invention provide a method, device, and system for discontinuous data scheduling, so as to achieve the objective that an RNC sends a discontinuous scheduling indication to a base station.
• An embodiment of the present invention provides a method for indicating discontinuous data scheduling. The method includes receiving, on an Iur interface, DRX indication information sent by an SRNC and sending discontinuous scheduling indication information to a base station according to the DRX indication information.
• An further embodiment of the present invention provides a radio network control device that includes a receiving unit that is configured to receive DRX indication information on an Iur interface. A sending unit is configured to send discontinuous scheduling indication information to a base station according to the DRX indication information.
• Another embodiment of the present invention provides a communication system that includes a first radio network control device that is configured to receive capability information reported by a UE about the support for an enhanced DRX characteristic and to send DRX indication information to a second radio network control device. The second radio network control device is configured to receive the DRX indication information on an Iur interface and to send discontinuous scheduling indication information to a base station according to the DRX indication information.
• By using the technical solutions of the present invention, the objective that an RNC sends a discontinuous scheduling indication to a base station is achieved, and a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
BRIEF DESCRIPTION OF THE DRAWINGS
• For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
• FIG. 1 is a flow chart of a method for indicating discontinuous data scheduling according to Embodiment 1 of the present invention;
• FIG. 2 is a flow chart of a method for indicating discontinuous data scheduling according toEmbodiment 2 of the present invention;
• FIG. 3 is a flow chart of a method for indicating discontinuous data scheduling according to Embodiment 3 of the present invention;
• FIG. 4 is a schematic diagram of a communication system and a radio network control device according to Embodiment 4 of the present invention;
• FIG. 5 is a schematic diagram of a communication system and a radio network control device according to Embodiment 5 of the present invention; and
• FIG. 6 is a flow chart of a method for indicating discontinuous data scheduling according to Embodiment 6 of the present invention.
DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
• In the following, the technical solutions of the present invention are described in detail with reference to the accompanying drawings.
Embodiment 1
• In this embodiment, aCRNC13 and anSRNC14 of a UE11 are different network equipment, and the UE11, the CRNC13, and the SRNC14 all support the enhanced DRX characteristic. The technical solution of this embodiment is described now. TheCRNC13 receives, on an Iur interface, an Iur data frame sent by theSRNC14, where the Iur data frame carries DRX indication information; theCRNC13 knows that the Iur data frame requires discontinuous scheduling according to the DRX indication information carried in the Iur data frame, and sends discontinuous scheduling indication information to abase station NodeB12. As shown inFIG. 1, this embodiment includes the following steps.
• In step101, the UE11 reports capability information about the support for the enhanced DRX characteristic to theSRNC14.
• In this step, the UE11 reports the capability information about the support for the enhanced DRX characteristic by using at least one of the following methods reporting through an RRC connection establishment request message, reporting through an RRC connection establishment complete message, and reporting through a cell update message.
• In step102, if whether the UE11 performs discontinuous reception is a configurable characteristic, and the SRNC14 knows that the UE11 supports the enhanced DRX characteristic, theSRNC14 may determine to set the UE11 to use discontinuous reception according to the specific service condition of the UE11. In addition, the SRNC14 carries indication information in dedicated RRC signaling delivered by the SRNC14 to instruct a UE to perform discontinuous reception.
• If both the UE11 and cells in a control range of theCRNC13 where the UE11 is located support the enhanced DRX characteristic, the UE11 must use the enhanced DRX characteristic, that is, whether the UE11 uses discontinuous reception is not a configurable characteristic. Accordingly, after the SRNC14 knows that the UE11 supports the enhanced DRX characteristic, theSRNC14 may use the DRX indication information to notify theCRNC13 of the capability about that the UE11 supports the enhanced DRX characteristic.
• If theSRNC14 does not support the enhanced DRX characteristic, the indication information in this step does not exist, and the UE11 performs continuous data reception.
• The dedicated RRC signaling in this step includes an RRC connection establishment message, a cell update confirmation message, and other messages used to perform resource reconfiguration for the UE11, for example, physical channel reconfiguration, transport channel reconfiguration, radio bearer reconfiguration, and radio bearer establishment.
• Instep103, the SRNC14 sends an Iur data frame of the UE11 to theCRNC13 on the Iur interface. The Iur data frame carries DRX indication information, for example, DRX Indication, and the DRX indication information indicates to perform discontinuous scheduling on the Iur data frame.
• In step104, after receiving the Iur data frame, the CRNC13 transmits a data frame that is sent to the UE11 to the base station NodeB12. The data frame carries discontinuous scheduling indication information, for example, DRX Indication, to notify the NodeB that the NodeB needs to perform discontinuous scheduling on the downlink data delivered to the UE11.
• In step105, the NodeB receives the data frame, and performs discontinuous scheduling on the downlink data of the UE11.
• In this embodiment, a method for indicating discontinuous data scheduling is provided. In this method, the SRNC knows that the Iur data frame requires discontinuous scheduling according to the DRX indication information carried in the Iur data frame, and thus instructs the base station to perform discontinuous scheduling, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
Embodiment 2
• In this embodiment, aCRNC13 and anSRNC14 of a UE11 are different network equipment, and the UE11 and theCRNC13 both support the enhanced DRX characteristic. This embodiment can be described as follows. The UE11 reports capability information about the support for the enhanced DRX characteristic to theCRNC13, so as to enable theCRNC13 to know the information that the UE11 supports the enhanced DRX characteristic. When theCRNC13 receives an Iur data frame, theCRNC13 knows that the Iur data frame requires discontinuous scheduling according to a UE identity in the Iur data frame and the capability information that the UE11 supports the enhanced DRX characteristic. Thus theCRNC13 instructs a base station to perform discontinuous scheduling on the data. As shown inFIG. 2, this embodiment includes the following steps.
• Instep201, the UE11 sends a cell update message. The cell update message carries capability information that the UE11 supports the DRX characteristic.
• Instep202, theCRNC13 receives the cell update message, and knows that the UE11 supports the enhanced DRX characteristic. Furthermore, theCRNC13 saves the capability information that the UE11 supports the enhanced DRX characteristic.
• In step203, theCRNC13 receives an Iur data frame from theSRNC14. In this embodiment, the Iur data frame is, for example, an HS-DSCH data frame.
• Instep204, theCRNC13 checks whether the UE to which the Iur data frame belongs supports the enhanced DRX characteristic according to a UE identity in the Iur data frame. In this embodiment, theCRNC13 knows that the data frame is a data frame delivered to the UE11 that supports the enhanced DRX characteristic according to the UE identity in the HS-DSCH data frame.
• It should be noted that, when theCRNC13 supports the enhanced DRX characteristic, if the cells in a control range of theCRNC13 are not forced to support the enhanced DRX characteristic, theCRNC13 needs to further determine whether the cell where the UE is located supports the enhanced DRX characteristic. That is, beforestep204, theCRNC13 needs to acquire capability information about whether the cells in the control range of theCRNC13 support the enhanced DRX characteristic.
• In step205, theCRNC13 transmits a data frame that is sent to the UE11 to theNodeB12. The data frame carries discontinuous scheduling indication information, for example, DRX Indication.
• In step206, theNodeB12 receives the data frame carrying the discontinuous scheduling indication information, and performs discontinuous scheduling on the downlink data of the UE11.
• In this embodiment, a method for discontinuous data scheduling is provided. When the UE supports the enhanced DRX characteristic, the objective that the network performs discontinuous scheduling of the downlink data of the UE is achieved. If the UE and the service cell of the UE support the enhanced DRX characteristic, the CRNC sends the discontinuous scheduling indication to the NodeB regardless of whether the SRNC supports the enhanced DRX characteristic. In addition, the NodeB performs discontinuous scheduling on the downlink data of the UE, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
Embodiment 3
• In this embodiment, aCRNC13 and anSRNC14 of a UE11 are different network equipment, and the UE11, theCRNC13, and theSRNC14 all support the DRX characteristic. This embodiment can be described as follows. TheCRNC13 knows that the UE11 is set to perform discontinuous reception from DRX indication information carried in Iur interface signaling, and knows that an Iur data frame of a user requires discontinuous scheduling according to the information that the UE11 is set to perform discontinuous reception and a UE identify in the Iur data frame, and thus instructs a base station to perform discontinuous scheduling. As shown inFIG. 3, this embodiment includes the following steps.
• Instep301, the UE11 reports capability information about the support for the DRX characteristic to theSRNC14, and theSRNC14 knows that the UE11 supports the enhanced DRX characteristic.
• In this embodiment, the UE11 reports the capability information about the support for the DRX characteristic through, for example, an RRC connection establishment request message.
• In step302, the UE11 enters a cell in a control range of theCRNC13, and sends a cell update message to a network side.
• Instep303, after receiving the cell update message, theCRNC13 carries the cell update message in an uplink signaling transmission indication and sends the uplink signaling transmission indication to theSRNC14.
• In step304, if whether the UE11 performs discontinuous reception is a configurable characteristic, theSRNC14 that supports the enhanced DRX characteristic determines to set the UE11 to use the enhanced DRX characteristic according to the service condition of the UE, and sends DRX indication information to theCRNC13 through Iur interface signaling, where the DRX indication information indicates that the UE11 is set to use discontinuous reception. In this embodiment, the DRX indication information is carried in, for example, a downlink signaling transmission indication. The DRX indication information may also be carried in other Iur interface signaling, for example, a common transport channel resource request.
• It should be noted that, if theSRNC14 determines to set the UE11 not to use the enhanced DRX characteristic, or theSRNC14 does not support the enhanced DRX characteristic, an corresponding indication may be added to the Iur interface signaling; or, when the Iur interface signaling does not carry the DRX indication information, it is considered that the UE11 is not set to use the enhanced DRX characteristic.
• TheCRNC13 may save the information that the UE11 is set to use discontinuous reception, and for example, save the information in a context of the UE11.
• Instep305, theCRNC13 sends DRX indication information to the UE11, to instruct the UE11 to perform discontinuous reception, and in this embodiment, the DRX indication information is carried, for example, in a cell update confirmation message.
• In step306, theCRNC13 receives an Iur data frame from theSRNC14, and in this embodiment, the Iur data frame is, for example, an HS-DSCH data frame.
• In step307, theCRNC13 checks whether the Iur data frame is a data frame delivered to the UE11 that supports the enhanced DRX characteristic according to a UE identity in the Iur data frame. In this embodiment, theCRNC13 knows that the Iur data frame is a data frame delivered to the UE11 that supports the enhanced DRX characteristic according to the UE identity in the HS-DSCH data frame.
• In step308, theCRNC13 transmits a data frame that is sent to the UE11 to theNodeB12, in which the data frame carries discontinuous scheduling indication information, for example, DRX Indication.
• In step309, theNodeB12 receives the data frame carrying the discontinuous scheduling indication information, and performs discontinuous scheduling on the downlink data of the UE11.
• In this embodiment, a method for indicating discontinuous data scheduling is provided. The CRNC knows that the UE is set to perform discontinuous reception according to the DRX indication information carried in the Iur interface signaling, and obtains Iur data frames that require discontinuous scheduling according to the information that the UE is set to perform discontinuous reception and the UE identity in the Iur data frame, and therefore the CRNC instructs the base station to perform discontinuous scheduling, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
Embodiment 4
• In this embodiment, a communication system and a radio network control device are provided. As shown inFIG. 4, the communication system includes aUE401, abase station402, a first radionetwork control device403, and a second radio network control device404.
• TheUE401 is configured to report capability information about the support for the enhanced DRX characteristic to the first radionetwork control device403.
• The first radionetwork control device403 is configured to receive the capability information reported by theUE401 about the support for the enhanced DRX characteristic, set theUE401 to use discontinuous reception, and send DRX indication information to the second radio network control device404.
• The second radio network control device404 is configured to receive the DRX indication information on an Iur interface, and send discontinuous scheduling indication information to thebase station402 according to the DRX indication information.
• The radio network control device of this embodiment is applied to the communication system of this embodiment, that is, the second radio network control device. As shown inFIG. 4, the second radio network control device404 includes: a receivingunit4041 and a sendingunit4042. The receivingunit4041 is configured to receive the DRX indication information on the Iur interface, and the sendingunit4042 is configured to send the discontinuous scheduling indication information to the base station404 according to the DRX indication information.
• The DRX indication information may be carried in an Iur data frame, and the DRX indication information indicates to perform discontinuous scheduling on the Iur data frame. The DRX indication information may also be carried in Iur interface signaling, and at this time, the DRX indication information indicates that the UE is set to perform discontinuous reception.
• It should be noted that, when the methods of Embodiment 1 and Embodiment 3 are implemented by using the communication system of this embodiment, the first radio network control device and the second radio network control device of this embodiment correspond to the SRNC and the CRNC in Embodiment 1 and Embodiment 3 respectively.
• In the communication system and the radio network control device of this embodiment, the radio network control device instructs the base station to perform discontinuous scheduling according to the DRX indication information carried in the Iur data frame or the Iur interface signaling, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
Embodiment 5
• In this embodiment, a communication system and a radio network control device are provided. As shown inFIG. 5, the communication system includes a UE501, abase station502, and a radio network control device503.
• The UE501 is configured to report capability information about the support for the enhanced DRX characteristic.
• The radio network control device503 is configured to receive an Iur data frame, and send discontinuous scheduling indication information to thebase station502 according to a UE identity in the Iur data frame and the capability information that the UE supports the enhanced DRX characteristic.
• The radio network control device of this embodiment is applied to the communication system of this embodiment, that is, the radio network control device503. As shown inFIG. 5, the radio network control device503 further includes areceiving unit5031 and a sendingunit5032. The receivingunit5031 is configured to receive the capability information reported by the UE501 about the support for the enhanced DRX characteristic. The sendingunit5032 is configured to receive the Iur data frame, and send the discontinuous scheduling indication information to thebase station502 according to the UE identity in the Iur data frame and the capability information that the UE supports the enhanced DRX characteristic.
• In the communication system and the radio network control device of this embodiment, when the UE supports the enhanced DRX characteristic, the objective that the network performs discontinuous scheduling of the downlink data of the UE is achieved. If the UE and the service cell of the UE support the enhanced DRX characteristic, the CRNC sends the discontinuous scheduling indication to the base station regardless of whether the service radio network control device supports the enhanced DRX characteristic, and the base station performs discontinuous scheduling on the downlink data of the UE, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
Embodiment 6
• In this embodiment, aCRNC13 and anSRNC14 of a UE11 are different network equipment, and the UE11, theCRNC13, and theSRNC14 all support the DRX characteristic. This embodiment can be described as follows. TheCRNC13 knows capability information that the UE11 supports the enhanced DRX from DRX indication information carried in Iur interface signaling, and knows that an Iur data frame of a user requires discontinuous scheduling according to the capability information that the UE11 supports the enhanced DRX and a UE identity in the Iur data frame, and thus instructs a base station to perform discontinuous scheduling. As shown inFIG. 6, this embodiment includes the following steps.
• In step601, the UE11 reports the capability information about the support for the DRX characteristic to theSRNC14, and theSRNC14 knows that the UE11 supports the enhanced DRX characteristic.
• In this embodiment, the UE11 reports the capability information about the support for the DRX characteristic through, for example, an RRC connection establishment request message.
• In step602, the UE11 enters a cell in a control range of theCRNC13, and sends a cell update message to a network side.
• In step603, after receiving the cell update message, theCRNC13 carries the cell update message in an uplink signaling transmission indication and sends the uplink signaling transmission indication to theSRNC14.
• In step604, if the UE11 and cells in the control range of theCRNC13 where the UE11 is located support the enhanced DRX characteristic, the UE11 must use the enhanced DRX characteristic, that is, whether the UE11 uses discontinuous reception is not a configurable characteristic, and accordingly, after theSRNC14 knows that the UE11 supports the enhanced DRX characteristic, theSRNC14 may use the DRX indication information to notify theCRNC13 of the capability information about the support for the enhanced DRX characteristic of the UE11. In this embodiment, the DRX indication information is carried in, for example, a downlink signaling transmission indication. The DRX indication information may also be carried in other Iur interface signaling, for example, a common transport channel resource request.
• If the Iur interface signaling does not carry the DRX indication information, it is considered that the UE does not support the enhanced DRX characteristic.
• TheCRNC13 may save the capability information that the UE11 supports the enhanced DRX, and for example, save the information in a context of the UE11.
• In step605, theCRNC13 sends a cell update confirmation message to the UE11.
• Instep606, theCRNC13 receives an Iur data frame from theSRNC14. In this embodiment, the Iur data frame is, for example, an HS-DSCH data frame.
• In step607, theCRNC13 checks whether the Iur data frame is a data frame delivered to the UE that supports the enhanced DRX characteristic according to a UE identity in the Iur data frame. In this embodiment, theCRNC13 determines whether the data frame requires discontinuous scheduling according to the UE identity in the HS-DSCH data frame and the capability information of whether the UE11 supports the enhanced DRX that is obtained in step604.
• In step608, theCRNC13 transmits a data frame that is sent to the UE11 to theNodeB12. The data frame carries discontinuous scheduling indication information, for example, DRX Indication.
• In step609, theNodeB12 receives the data frame carrying the discontinuous scheduling indication information, and performs discontinuous scheduling on the downlink data of the UE11.
• In this embodiment, a method for indicating discontinuous data scheduling is provided. The CRNC knows the capability information that the UE supports the enhanced DRX according to the DRX indication information carried in the Iur interface signaling, and obtains Iur data frames that require discontinuous scheduling according to the capability information that the UE supports the enhanced DRX and the UE identity in the Iur data frame, and therefore the CRNC instructs the base station to perform discontinuous scheduling, so that a UE that supports the enhanced DRX characteristic is enabled to perform discontinuous reception.
• A part of the steps in the embodiments of the present invention may be implemented by software, and the corresponding software programs may be stored in a readable storage medium, for example, an optical disk or a hard disk.
• The specific embodiments are not intended to limit the present invention. Persons of ordinary skill in the art should understand that any modification, equivalent replacement, or improvement made without departing from the principle of the present invention should fall within the scope of the present invention.

Claims (14)

1. A method, comprising:

sending, by user equipment (UE), capability information to a radio network control device, wherein the capability information indicates that the UE supports an enhanced DRX characteristic; and

receiving, by the UE, downlink data that is discontinuously scheduled by a base station for the UE according to indication information that is from the radio network control device and generated according to the capability information.

2. The method according toclaim 1, wherein sending the capability information comprises:

sending, by the UE, a cell update message to the radio network control device, wherein cell update message carries the capability information.

3. The method according toclaim 1, wherein sending the capability information comprises:

sending, by the UE, a radio resource control (RRC) connection establishment complete message to the radio network control device, wherein RRC connection establishment complete message carries the capability information.

4. (canceled)

5. The method according toclaim 1, wherein the indication information indicates that the UE supports the enhanced DRX characteristic.

6. A device, applied to user equipment (UE), wherein the device comprises:

a processor; and

a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and the processor is configured to:

send capability information to a radio network control device, wherein the capability information indicates that the UE supports an enhanced DRX characteristic; and

receive downlink data that is discontinuously scheduled by a base station for the UE according to indication information that is from the radio network control device and generated according to the capability information.

7. The device according toclaim 6, wherein the capability information is carried in a cell update message.

8. The device according toclaim 6, wherein the capability information is carried in a radio resource control (RRC) connection establishment complete message.

9. (canceled)

10. The device according toclaim 6, wherein the indication information indicates that the UE supports the enhanced DRX characteristic.

11. A method, comprising:

receiving, by a base station, a data frame from a first radio network control device, wherein the data frame comprises downlink data and discontinuous scheduling (DRX) indication information; and

performing, by the base station, discontinuous scheduling for the downlink data according to the DRX indication information.

12. The method according toclaim 11, wherein the DRX indication information indicates that a user equipment supports an enhanced DRX characteristic.

13. A device, applied to a base station, wherein the device comprises:

a processor; and

a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program, and the processor is configured to:

receive a data frame from a radio network control device, wherein the data frame comprises downlink data and discontinuous scheduling (DRX) indication information that is generated according to capability information that indicates that user equipment (UE) supports an enhanced DRX characteristic; and

discontinuously schedule the downlink data for the UE according to the DRX indication information.

14. The device according toclaim 13, wherein the DRX indication information indicates that a user equipment supports an enhanced DRX characteristic.

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