WO2014198058A1

WO2014198058A1 - Method for switching serving cell, network equipment and user equipment

Info

Publication number: WO2014198058A1
Application number: PCT/CN2013/077241
Authority: WO
Inventors: 陈东; 徐小英; 舒兵
Original assignee: 华为技术有限公司
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2014-12-18
Also published as: CN104429125B; CN104429125A

Abstract

Disclosed are a method for switching a serving cell, network equipment and user equipment. The network equipment determines to configure a first cell as a pre-configured cell for quick switching, and the network equipment sends indicating information to the user equipment, to indicate the user equipment to configure the first cell as the pre-configured cell for quick switching, wherein the first cell is a serving cell where the user equipment is currently located.

Description

The present invention relates to the field of communications technologies, and in particular, to a method for switching a serving cell, a network device, and a user equipment. Background technique

A heterogeneous network is a network of different sizes and different types of cells. In a heterogeneous network, the macro cell is subject to more interference due to the deployment of the micro cell, resulting in the user equipment (User Equipment, UE) in the traditional handover. When the macro cell is handed over to the cell, the failure rate of the handover command sent by the network device of the macro cell becomes high, and when the UE switches from the micro cell to the macro cell, the network device of the micro cell is sent due to the fast fading of the micro cell signal. The failure rate of the switch command will also become higher. In the traditional handover process, after the UE reports the 1D measurement report of the target cell, the network device of the source cell sends a handover command to the UE to perform the handover.

To solve the above problem, the current fast switching mechanism is adopted. For example, when the UE moves from the macro cell to the micro cell, when the UE adds the micro cell to the active set of the UE, the network device configures the micro cell to be a pre-configured cell of the fast cell handover, and after the UE sends the 1D measurement report of the micro cell, the UE Receiving a fast cell handover command sent by the network device, so as to implement successful handover of the UE from the macro cell to the micro cell. In the fast handover process, after the UE reports the 1D measurement report of the target cell, the network device of the target cell sends a handover command to the UE to perform the handover.

After the UE is handed over from the macro cell to the micro cell, the macro cell may still be in the active set of the UE. When the UE quickly triggers the handover back to the macro cell, the UE fails to complete the fast cell handover of the macro cell in time before the fast handover. Pre-configuration, that is, the macro cell is not configured as a pre-configured cell for fast handover, so the UE will not be able to switch back to the macro cell using the fast handover function. At this time, the UE can only use the traditional handover function, and the problem that the handover failure rate is too high will be obtained. Not improved.

In addition, when the current UE configures a cell as a fast-switched pre-configured cell, the network device must send configuration related information to the UE, for example, the air interface identifier of the UE, the configuration information of the high-speed downlink shared channel, and the configuration information of the enhanced dedicated channel. And the type of the message used for the handover, the medium access control (MAC) entity indicating whether to reset the high-speed sharing, the transaction identifier of the handover completion message, and the like, even if the serving cell where the UE is currently located is configured as a fast handover pre- - - With the cell, the network device still needs to send this information to the UE, and the signaling overhead is large.

The embodiments of the present invention provide a method for switching a serving cell, a network device, and a user equipment, which can ensure that the user equipment can use the fast handover function to switch between two cells at any time, and the switching success rate is high, and the saving is saved. Signaling overhead.

A first aspect of the embodiments of the present invention provides a method for switching a serving cell, including: determining, by a network device, that a first cell is configured as a pre-configured cell for fast handover; and the network device sends indication information to the user equipment, to indicate the The user equipment configures the first cell as a fast-switched pre-configured cell, where the first cell is a serving cell where the user equipment is currently located.

With reference to the first aspect of the embodiments of the present invention, in a first implementation manner of the first aspect of the embodiments, the network device includes: sending, by the network device, a dedicated message to the user equipment, where the user equipment is configured. Determining that the first cell is a pre-configured cell that is configured to be fast-switched when the high-speed downlink shared channel or the high-speed uplink channel of the first cell is configured; the sending, by the network device, the indication information to the user equipment is: Information is carried in the dedicated message and sent to the user equipment.

With reference to the first aspect of the embodiments of the present invention, in a second implementation manner of the first aspect of the embodiments, the network device includes: sending, by the network device, an active set update command to the user equipment, to request the user When the device adds or deletes the second cell, it is determined that the first cell is configured as a fast-switched pre-configured cell, and the second cell is not the serving cell where the user equipment is currently located; the network device sends the indication information to the user equipment. The network device sends the indication information to the user equipment in the activation set update command.

With reference to the first aspect of the embodiments of the present invention, in a third implementation manner of the first aspect of the embodiments of the present invention, the method includes: the network device is configured to switch from the first cell to the second device to the user equipment Determining, by the handover command of the cell, that the first cell is a pre-configured cell that is fast-switched, the second cell is not the cell where the user equipment is currently located, and the handover command is to quickly switch from the first cell to the first cell. a fast handover command of the second cell, or a normal handover command from the first cell to the second cell; the network device sending the indication information to the user equipment, specifically: the network device The indication information is carried in the handover command and sent to the user equipment.

With reference to the third implementation manner of the first aspect of the embodiment of the present invention, in a fourth implementation manner of the first aspect of the embodiment, the network device is a radio network controller (Radio Network - -

When the handover command is the fast handover command, the network device is the base station device NodeB of the second cell, and when the handover command is a normal handover command, the The network device is the RNC of the first cell.

A second aspect of the embodiments of the present invention provides a method for switching a serving cell, including: acquiring, by a user equipment, indication information sent by a network device; and configuring, by the user equipment, the first cell as a fast handover pre-configuration according to the indication information a cell, where the first cell is a serving cell where the user equipment is currently located.

With reference to the second aspect of the embodiments of the present invention, in a first implementation manner of the second aspect of the embodiments of the present disclosure, the user equipment obtains the indication information from a dedicated message sent by the network device, The dedicated message is used to configure a high-speed downlink shared channel or a high-speed uplink channel of the first cell for the user equipment, where the dedicated message carries the indication information.

With reference to the second aspect of the embodiments of the present invention, in a second implementation manner of the second aspect of the embodiments of the present invention, the method includes: the user equipment acquiring the indication information from an active set update command sent by the network device The activation set update command is used to request the user equipment to add or delete a second cell, where the second cell is not the serving cell where the user equipment is currently located, and the activation set update command carries the indication information. .

With reference to the second aspect of the embodiments of the present invention, in a third implementation manner of the second aspect of the embodiment of the present invention, the method includes: the user equipment acquiring the indication information from a handover command sent by the network device, where The handover command is used to request the user equipment to switch from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the handover command carries the indication information. The handover command is a fast handover command from the first cell to the second cell, or a normal handover command from the first cell to the second cell.

With reference to the second aspect of the embodiments of the present invention, or the first embodiment of the second aspect, or the second embodiment of the second aspect, or the third embodiment of the second aspect, in the embodiment of the present invention In a fourth implementation manner of the second aspect, the user equipment is configured to configure the first cell as a fast-switched pre-configured cell according to the indication information, where the user equipment uses the user equipment according to the indication information. The configuration information of the first cell is updated to the fast-switching pre-matching variable, where the configuration information includes at least an air interface identifier of the user equipment, configuration information of a serving high-speed downlink shared channel of the first cell, and a cell serving the enhanced dedicated channel. One of the configuration information and the scrambling code information of the first cell. The third aspect of the embodiments of the present invention provides a network device, including: a determining unit, configured to determine a pre-configured cell configured to configure a first cell as a fast handover, and a sending unit, configured to send, to the user equipment, indication information, The user equipment is configured to configure the first cell as a pre-configured cell for fast handover, where the first cell is a serving cell where the user equipment is currently located.

With reference to the third aspect of the embodiments of the present invention, in a first implementation manner of the third aspect of the embodiments, the determining unit includes: a first determining unit, configured to send a dedicated message to the user equipment When the user equipment is configured with the high-speed downlink shared channel or the high-speed uplink channel of the first cell, the first cell is configured as a pre-configured cell for fast handover; the sending unit includes: a first sending unit, configured to: The indication information is carried in the dedicated message and sent to the user equipment.

With reference to the third aspect of the embodiments of the present invention, in a second implementation manner of the third aspect of the embodiments, the determining unit includes: a second determining unit, configured to send an active set update to the user equipment And the command is to: when the user equipment is required to add or delete the second cell, determine that the first cell is a pre-configured cell that is configured to be fast-switched, where the second cell is not the serving cell where the user equipment is currently located; The second sending unit is configured to send the indication information to the user equipment in the active set update command.

With reference to the third aspect of the embodiments of the present invention, in a third implementation manner of the third aspect of the embodiment, the determining unit includes: a third determining unit, configured to send, to the user equipment, the When the first cell switches to the handover command of the second cell, it is determined that the first cell is a pre-configured cell that is configured to be fast-switched, the second cell is not the cell where the user equipment is currently located, and the handover command is from the first a fast handover command to the second cell, or a normal handover command from the first cell to the second cell; the sending unit includes: a third sending unit, configured to The indication information is carried in the handover command and sent to the user equipment.

With reference to the third embodiment of the third aspect of the embodiments of the present invention, in a fourth implementation manner of the third aspect of the embodiments, the network device is a radio network controller RNC or a base station device NodeB, when When the handover command is the fast handover command, the network device is a base station device NodeB of the second cell, and when the handover command is a normal handover command, the network device is an RNC of the first cell.

A fourth aspect of the embodiments of the present invention provides a user equipment, including: an acquiring unit, configured to acquire indication information sent by a network device, and a configuration unit, configured to configure, according to the indication information, a first cell as a pre-switch for fast handover a cell, the first cell is a small service of the user equipment Area.

With reference to the fourth aspect of the embodiments of the present invention, in a first implementation manner of the fourth aspect of the embodiments, the acquiring unit includes: a first acquiring unit, configured to send a dedicated message from the network device And obtaining the indication information, where the dedicated message is used to configure a high-speed downlink shared channel or a high-speed uplink channel of the first cell for the user equipment, where the dedicated message carries the indication information.

With reference to the fourth aspect of the embodiments of the present invention, in a second implementation manner of the fourth aspect of the embodiments, the acquiring unit includes: a second acquiring unit, configured to update an active set sent by the network device Obtaining the indication information in the command, the activation set update command is used to request the user equipment to add or delete a second cell, where the second cell is not a serving cell where the user equipment is currently located, and the active set update command is The indication information is carried in the middle.

With reference to the fourth aspect of the embodiments of the present invention, in a third implementation manner of the fourth aspect of the embodiments, the acquiring unit includes: a third acquiring unit, configured to be used in a switching command sent by the network device Acquiring the indication information, where the handover command is used to request the user equipment to switch from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, in the handover command Carrying the indication information, where the handover command is a fast handover command from the first cell to the second cell, or a normal handover from the first cell to the second cell command.

With reference to the fourth aspect of the embodiments of the present invention, or the first embodiment of the fourth aspect, or the second embodiment of the fourth aspect, or the third embodiment of the fourth aspect, in the embodiment of the present invention In a fourth implementation manner of the fourth aspect, the configuring, by the configuration unit, the first cell is configured as a fast-switched pre-configured cell according to the indication information, where the configuration unit: the user equipment is located according to the indication information The configuration information of the first cell is updated to the fast-switching pre-matching variable, where the configuration information includes at least an air interface identifier of the user equipment, configuration information of a serving high-speed downlink shared channel of the first cell, and a cell serving the enhanced dedicated channel. One of the configuration information and the scrambling code information of the first cell.

A fifth aspect of the embodiments of the present invention provides a network device, including: a first processor, configured to determine a pre-configured cell that configures a first cell to be a fast handover; and a transmitter, configured to send indication information to the user equipment, The user equipment is configured to configure the first cell as a pre-configured cell for fast handover, where the first cell is a serving cell where the user equipment is currently located.

In conjunction with the fifth aspect of the embodiments of the present invention, the first implementation of the fifth aspect of the embodiments of the present invention In the mode, the first processor is further configured to determine a configuration when a dedicated message is sent to the user equipment, where the user equipment configures a high speed downlink shared channel or a high speed uplink channel of the first cell. A cell is a pre-configured cell for fast handover;

The transmitter is further configured to carry the indication information in the dedicated message and send the information to the user equipment.

With reference to the fifth aspect of the embodiments of the present invention, in a second implementation manner of the fifth aspect of the embodiments, the first processor is further configured to send an activation set update command to the user equipment to request When the user equipment adds or deletes the second cell, it is determined that the first cell is a pre-configured cell that is fast-switched, and the second cell is not the serving cell where the user equipment is currently located;

The transmitter is further configured to send the indication information to the user equipment in the active set update command.

With reference to the fifth aspect of the embodiments of the present invention, in a third implementation manner of the fifth aspect of the embodiments, the first processor is further configured to send, when the user equipment is switched from the first cell Determining, by the handover command of the second cell, that the first cell is a pre-configured cell that is fast-switched, the second cell is not the cell where the user equipment is currently located, and the handover command is fast switching from the first cell to the first cell. The fast handover command of the second cell is an ordinary handover command that is normally switched from the first cell to the second cell;

The transmitter is further configured to carry the indication information in the handover command and send the information to the user equipment.

A sixth aspect of the embodiments of the present invention provides a user equipment, including: a receiver, configured to acquire indication information sent by a network device; and a second processor, configured to configure, according to the indication information, the first cell to be fast switched The pre-configured cell, the first cell is a serving cell where the user equipment is currently located.

With reference to the sixth aspect of the embodiments of the present invention, in a first implementation manner of the sixth aspect of the embodiments, the receiver is further configured to obtain the indication information from a dedicated message sent by the network device. The dedicated message is used to configure a high-speed downlink shared channel or a high-speed uplink channel of the first cell for the user equipment, where the dedicated message carries the indication information.

With reference to the sixth aspect of the embodiments of the present invention, in a second implementation manner of the sixth aspect of the embodiments, the receiver is further configured to obtain the indication from an active set update command sent by the network device. Information, the activation set update command is used to request the user equipment to add or delete the second small - The area, the second cell is not the serving cell where the user equipment is currently located, and the activation set update command carries the indication information.

With reference to the sixth aspect of the embodiments of the present invention, in a third implementation manner of the sixth aspect of the embodiments, the receiver is further configured to obtain the indication information from a handover command sent by the network device, The handover command is used to request the user equipment to switch from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the handover command carries the indication information. The handover command is a fast handover command from the first cell to the second cell, or a normal handover command from the first cell to the second cell.

With reference to the sixth aspect of the embodiments of the present invention, or the first embodiment of the sixth aspect, or the second embodiment of the sixth aspect, or the third embodiment of the sixth aspect, in the embodiment of the present invention In a fourth implementation manner of the sixth aspect, the second processor, configured to configure the first cell as the fast-switched pre-configured cell according to the indication information, is: the second processor, according to the indication information, The user equipment is updated in the configuration information of the first cell to the fast-switched pre-matching variable, where the configuration information includes at least an air interface identifier of the user equipment, configuration information of a service high-speed downlink shared channel of the first cell, and service enhancement. One of the cell configuration information of the dedicated channel and the scrambling code information of the first cell.

As can be seen from the foregoing technical solution, the network device first determines that the first cell is configured as a pre-configured cell for fast handover, and sends indication information to the user equipment, to indicate that the user equipment configures the first cell as a pre-configured cell for fast handover, A cell is a serving cell where the user equipment is currently located. Since the network device has previously determined and instructed the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the previously used first cell still in the active set, The cell has been configured as a pre-configured cell for fast handover, so the fast handover function can be used to ensure the success rate of handover.

At the same time, since the first cell is a serving cell currently used by the user equipment, the user equipment itself saves relevant configuration data using the first cell, so the network device indicates that the user equipment configures the first cell as a pre-configured cell for fast handover. The configuration data of the first cell is no longer needed to be sent to the user equipment, which saves signaling overhead. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of an embodiment of a method for switching a serving cell according to an embodiment of the present invention;

2 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present invention; - FIG. 3 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present invention;

4 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another embodiment of a method for switching a serving cell according to an embodiment of the present invention;

6 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of another embodiment of a serving cell handover method according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of an embodiment of a network device according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of an embodiment of a user equipment according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of another embodiment of a network device according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of another embodiment of a user equipment according to an embodiment of the present invention. The embodiments of the present invention provide a method for switching a serving cell, a network device, and a user equipment, which can ensure that the user equipment can use the fast switching function to switch between two cells at any time, and the switching success rate is high, and the saving is achieved. The signaling overhead.

Please refer to FIG. 1 , which is a schematic flowchart of a method for switching a serving cell according to an embodiment of the present invention.

101. The network device determines that the first cell is configured as a pre-configured cell for fast handover.

In the traditional cell handover process, the signal interference and the signal fast fading result in a high failure rate of the handover. Therefore, in this embodiment, the fast handover mechanism is adopted, and the network device determines in advance that the first cell is configured as a fast handover pre-configured cell, where The first cell is a serving cell where the user equipment is currently located. Herein, the network device may be an access network device, such as a radio network controller (RNC) or a base station.

102. The network device sends indication information to the user equipment, to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell.

After the network device determines that the first cell is configured as a fast-switched pre-configured cell, the device sends the indication information to the user equipment to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, that is, the network device is in the user equipment. When a cell is a serving cell, the indication information is determined and sent, and the user equipment is required to configure the first cell as a pre-configured cell for fast handover.

Since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves the relevant configuration data using the first cell, so the network device indicates that the user equipment configures the first cell. - When the pre-configured cell is fast-switched, the configuration data of the first cell is no longer needed to be sent to the user equipment, which saves signaling overhead.

In this embodiment, the network device first determines that the first cell is configured as a pre-configured cell for fast handover, and sends indication information to the user equipment, to indicate that the user equipment configures the first cell as a pre-configured cell for fast handover, where the first cell is The serving cell where the user equipment is currently located. Since the network device has previously determined and instructed the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the previously used first cell still in the active set, due to the first The cell has been configured as a pre-configured cell for fast handover, so the fast handover function can be used to ensure the success rate of handover.

For ease of understanding, the serving cell handover method in the embodiment of the present invention is described in three specific examples. Please refer to FIG. 2 to FIG. First, please refer to FIG. 2, which is a schematic flowchart of a method for switching a serving cell according to another embodiment of the present invention.

201. The network device determines to configure the first cell to be a fast-switched pre-configured cell when sending the dedicated message to the user equipment.

In the traditional cell handover process, the signal interference and the signal fast fading result in a high failure rate of the handover. Therefore, in this embodiment, the fast handover mechanism is adopted, and the network device determines in advance that the first cell is configured as a fast handover pre-configured cell, where The first cell is a serving cell where the user equipment is currently located. In another embodiment of the present invention, the network device determines to configure the first cell to be a fast-switched pre-configured cell when the dedicated message is sent to the user equipment, and the network device sends the dedicated message to the user equipment to configure the first configuration for the user equipment. A high speed downlink shared channel or a high speed upstream channel of a cell. The network device may be a base station device NodeB of the first cell.

202. The network device sends the indication information to the user equipment in a dedicated message, to instruct the user equipment to configure the first cell as a pre-matched cell for fast handover.

In this embodiment, the network device determines that the first cell is a pre-configured cell that is configured to be fast-switched, and the network device may configure the user equipment to configure the first cell as the pre-matched cell of the fast handover, when the network device sends the dedicated message to the user equipment. The indication information is carried in a dedicated message and sent to the user equipment.

Since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves the relevant configuration data using the first cell, so when the network device instructs the user equipment to configure the first cell as a pre-configured cell for fast handover, The configuration data of the first cell is no longer needed to be sent to the user equipment, which saves signaling overhead. - In this embodiment, the network device determines that the first cell is a fast-switched pre-configured cell, and sends the indication information in a dedicated message to the user equipment to indicate that the user equipment is to be A cell is configured as a pre-configured cell for fast handover, and the first cell is a serving cell where the user equipment is currently located. Since the network device has previously determined and instructed the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the previously used first cell still in the active set, The cell has been configured as a pre-configured cell for fast handover, so the fast handover function can be used to ensure the success rate of handover.

Referring to FIG. 3, a schematic flowchart of a method for switching a serving cell in another embodiment of the present invention is shown.

301. The network device determines to configure the first cell to be a fast-switched pre-configured cell when sending the active set update command to the user equipment.

In this embodiment, the fast switching mechanism is adopted, and the network device determines that the first cell is a fast-switched pre-configured cell when the active set update command is sent to the user equipment, and the active set update command may be used to request the user equipment to add or delete the first The second cell is not the serving cell where the user equipment is currently located. For example, the user equipment currently uses the first cell as the serving cell. When the network device or the user equipment finds that the second cell meets the available conditions, the network device sends an activation set update command to the user equipment, requesting the user equipment to add the second cell to the activation. The set, the second cell is configured as a pre-configured cell for fast handover, and the network device determines that the first cell can be configured as a pre-configured cell for fast handover.

In addition, the foregoing active set update command may be used to update a parameter of a cell in the active set, or to replace a certain cell in the active set by using a certain cell that does not exist in the active set, or to add the first cell. An active collection to the user device.

302. The network device sends the indication information to the user equipment in the active set update command, to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell.

In this embodiment, the network device determines that the first cell is a pre-configured cell that is configured to be fast-switched when the network device sends the active set update command to the user equipment, so the network device may configure the user equipment to configure the first cell as the pre-configured cell for fast handover. The indication information is carried in the activation set update command and sent to the user equipment.

Since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves the relevant configuration data using the first cell, so when the network device instructs the user equipment to configure the first cell as a pre-configured cell for fast handover, It is no longer necessary to send the relevant configuration number of the first cell to the user equipment. - - According to, the signaling overhead is saved.

In this embodiment, when the network device sends the active set update command to the user equipment, the network device determines that the first cell is a fast-switched pre-configured cell, and carries the indication information in the active set update command to send to the user equipment to indicate the user equipment. The first cell is configured as a pre-configured cell that is fast-switched, and the first cell is a serving cell where the user equipment is currently located. Since the network device has previously determined and instructed the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the previously used first cell still in the active set, due to the first The cell has been configured as a pre-configured cell for fast handover, so the fast handover function can be used to ensure the success rate of handover.

Referring to FIG. 4, a flow chart of another serving cell handover method in another embodiment of the present invention is shown.

401. The network device determines to configure the first cell to be a fast-switched pre-configured cell when sending the handover command to the user equipment.

When the network device sends a handover command from the first cell to the second cell to the user equipment, the network device determines that the first cell is a pre-configured cell that is fast-switched, and the second cell is not the cell where the user equipment is currently located. In this embodiment, the handover from the first cell to the second cell may be a fast handover or a normal handover, and the normal handover is a handover using a traditional handover method. Therefore, the handover command may be quickly switched from the first cell to the first cell. The fast handover command of the second cell may also be a normal handover command from the first cell to the second cell.

402. The network device sends the indication information to the user equipment in the handover command, to instruct the user equipment to configure the first cell as the pre-matched cell for fast handover.

In this embodiment, the network device may be an RNC or a base station device NodeB. If the handover command is a fast handover command, the network device will be the base station device NodeB of the second cell; if the handover command is a normal handover command, then the network device will be the RNC of the first cell. The network device may carry the indication information indicating that the user equipment configures the pre-configured cell of the first cell to the fast handover to be sent to the user equipment in a fast handover command or a normal handover command.

Since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves the relevant configuration data using the first cell, so when the network device instructs the user equipment to configure the first cell as a pre-configured cell for fast handover, The configuration data of the first cell is no longer needed to be sent to the user equipment, which saves signaling overhead.

In this embodiment, when the network device sends a handover command to the user equipment, it is determined that the first cell is configured. And - the fast-switched pre-configured cell, and the indication information is carried in the handover command and sent to the user equipment, to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, and the first cell is the current service of the user equipment. Community. Since the network device has previously determined and instructed the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the previously used first cell still in the active set, The cell has been configured as a pre-configured cell for fast handover, so the fast handover function can be used to ensure the success rate of handover. The following describes the method for switching the serving cell in the embodiment of the present invention from the perspective of the user equipment. Referring to FIG. 5, a flow chart of another method for switching a serving cell in another embodiment of the present invention is shown.

501. The user equipment acquires indication information sent by the network device.

The user equipment may be a mobile phone, a tablet computer, or the like, and the network device may be an RNC, a base station device, a NodeB, etc., and the user equipment acquires indication information sent by the network device, where the indication information is used to indicate that the user equipment configures the first cell as a pre-configured cell for fast handover. .

502. The user equipment configures the first cell as a fast-switched pre-configured cell according to the indication information. The user equipment configures the first cell as a fast-switched pre-configured cell according to the obtained indication information, where the first cell is a serving cell where the user is currently located.

In this embodiment, the user equipment acquires the indication information sent by the network device, and configures the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a service cell where the user equipment is currently located. Since the user equipment has previously configured the first cell of the serving cell as the pre-configured cell of the fast handover, when the user equipment needs to switch from the other cell to the first cell that is still in the active set, the first The cell has been configured as a pre-configured cell for fast handover. Therefore, the user equipment can quickly switch back to the first cell by using the fast handover mechanism, and can ensure the success rate of the handover.

In addition, since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves the relevant configuration data of the first cell, so the user equipment does not need to wait when configuring the first cell to be a fast-switched pre-configured cell. The configuration data of the first cell sent by the network device improves the switching efficiency.

For ease of understanding, the serving cell handover method in the embodiment of the present invention is described by three specific examples. Please refer to FIG. 6 to FIG. 8. First, please refer to FIG. 6, which is a schematic flowchart of another serving cell handover method according to another embodiment of the present invention.

601. The user equipment obtains the indication information from a dedicated message sent by the network device. - The above-mentioned dedicated message is used to configure a high-speed downlink shared channel or a high-speed uplink channel of the first cell for the user equipment, and the network device carries the indication information in a dedicated message and sends the information to the user equipment. Therefore, the user equipment can be from the network equipment. Obtain the indication information in the dedicated message sent.

602. The user equipment configures the first cell as a fast-switched pre-configured cell according to the indication information. The user equipment configures the first cell as a fast-switched pre-configured cell according to the obtained indication information, where the first cell is a serving cell where the user is currently located. In another embodiment of the present invention, the user equipment updates the related configuration information of the user equipment in the first cell to the pre-matching variable of the fast handover according to the indication information, where the configuration information includes at least the air interface identifier of the user equipment, and the first cell. One of the configuration information of the High-Speed Downlink Shared Channel (HS-DSCH), the cell configuration information of the Enhanced Dedicated Channel (E-DCH), and the scrambling code information of the first cell.

Since the first cell is the serving cell where the user is currently located, the user equipment itself saves the relevant configuration information in the first cell, so the user equipment no longer needs to wait to receive the configuration information in the first cell from the network device, thereby improving Switching efficiency.

In addition, the pre-configured cell configured with the first cell as the fast handover also needs the following three information: The type of the message used for the handover completion, indicating whether to reset the high-speed shared MAC entity, and sending the transaction identifier of the handover completion message. If the user equipment itself still stores the message type used for the handover completion, indicating whether to reset the media access control (MAC) entity of the high speed sharing, the transaction information of the handover completion message is sent, and the network device does not want to change the original information. In some configurations, the network device may not send the three information to the user equipment, and the user equipment may continue to use the original information.

If the user equipment does not have the above three messages, the network device may generate the foregoing message and send it to the user equipment through a Radio Resource Control (RRC) layer.

In this embodiment, the user equipment obtains the indication information from the dedicated message sent by the network device, and configures the first cell as the fast-switched pre-configured cell according to the indication information, where the first cell is the serving cell where the user equipment is currently located. Since the user equipment has previously configured the first cell of the serving cell as the pre-configured cell of the fast handover, when the user equipment needs to switch from the other cell to the first cell that is still in the active set, the first The cell has been configured as a pre-configured cell for fast handover. Therefore, the user equipment can quickly switch back to the first cell by using the fast handover mechanism, and can ensure the success rate of the handover. Referring to FIG. 7, a flow chart of another method for switching a serving cell in another embodiment of the present invention is shown.

701. The user equipment obtains the indication information by sending an activation set update command from the network device.

The foregoing active set update command may be used to require the user equipment to add or delete the second cell, and the second cell is not the cell where the user is currently located. For example, the user equipment currently uses the first cell as the serving cell. When the network device or the user equipment finds that the second cell meets the available conditions, the network device sends an activation set update command to the user equipment, requesting the user equipment to add the second cell to the activation. The set, configures the second cell to be a fast-switched pre-configured cell, and the network device sends the indication information to the user equipment in the active set update command, to indicate that the user equipment configures the first cell as the fast-switched pre-configured cell. Therefore, the user equipment can obtain the indication information from the network device to send the activation set update command.

In addition, the foregoing active set update command may be used to update a parameter of a cell in the active set, or to replace a certain cell in the active set by using a certain cell that does not exist in the active set, or to add the first cell. Go to the active collection of user devices.

702. The user equipment configures the first cell as a fast-switched pre-configured cell according to the indication information. The user equipment configures the first cell as a fast-switched pre-configured cell according to the obtained indication information, where the first cell is a serving cell where the user is currently located. In another embodiment of the present invention, the user equipment updates the related configuration information of the user equipment in the first cell to the pre-matching variable of the fast handover according to the indication information, where the configuration information includes at least the air interface identifier of the user equipment, and the first cell. One of the configuration information of the high speed downlink shared channel, the cell configuration information of the service enhanced dedicated channel, and the scrambling code information of the first cell.

In addition, the pre-configured cell configured with the first cell as the fast handover also needs the following three information: The type of the message used for the handover completion, indicating whether to reset the high-speed shared MAC entity, and sending the transaction identifier of the handover completion message. If the user equipment itself still stores the message type used for the handover completion, indicating whether to reset the high-speed shared MAC entity, and the transaction identifier of the handover completion message is sent, and the network device does not want to change the original configuration, the network device may not The three pieces of information are sent to the user equipment, and the user equipment can continue to use the original information.

If the user equipment does not have the above three messages, the network device may generate the foregoing message through the RRC layer and send the message to the user equipment. - In this embodiment, the user equipment obtains the indication information from the active set update command sent by the network device, and configures the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is the serving cell where the user equipment is currently located. . Since the user equipment has previously configured the first cell of the serving cell as the pre-configured cell of the fast handover, when the user equipment needs to switch from the other cell to the first cell that is still in the active set, the first The cell has been configured as a pre-configured cell for fast handover. Therefore, the user equipment can quickly switch back to the first cell by using the fast handover mechanism, and can ensure the success rate of the handover.

FIG. 8 is a schematic flowchart of another serving cell handover method according to another embodiment of the present invention.

801. The user equipment obtains indication information from a network device sending a handover command.

The foregoing handover command is used to require the user equipment to switch from the first cell to the second cell. In this embodiment, the handover from the first cell to the second cell may be a fast handover or a normal handover, and the normal handover is a handover using a traditional handover method. Therefore, the handover command may be quickly switched from the first cell to the first cell. The fast handover command of the second cell is an ordinary handover command that is normally switched from the first cell to the second cell.

Further, if the upper network device can be a radio network controller RNC or a base station device NodeB. If the handover command is a fast handover command, the network device will be the base station device NodeB of the second cell; if the handover command is a normal handover command, the network device will be the RNC of the first cell. The network device may send the indication information indicating that the user equipment configures the pre-configured cell of the first cell to the fast handover to the user equipment in the fast handover command or the normal handover command, and the user equipment may obtain the indication information from the network device sending the handover command.

802. The user equipment configures the first cell as a fast-switched pre-configured cell according to the indication information. The user equipment configures the first cell as a fast-switched pre-configured cell according to the obtained indication information, where the first cell is a serving cell where the user is currently located. In another embodiment of the present invention, the user equipment updates the related configuration information of the user equipment in the first cell to the pre-matching variable of the fast handover according to the indication information, where the configuration information includes at least the air interface identifier of the user equipment, and the first cell. One of the configuration information of the high speed downlink shared channel, the cell configuration information of the service enhanced dedicated channel, and the scrambling code information of the first cell.

Since the first cell is the serving cell where the user is currently located, the user equipment itself saves the configuration information in the first cell, so the user equipment no longer needs to wait to receive the configuration information in the first cell from the network device, which is improved. Switching efficiency. In addition, the pre-configured cell configured as the fast handover of the first cell also needs the following three types of information: the message type used for the handover completion, indicating whether to reset the high-speed shared MAC entity, and transmitting the transaction identifier of the handover complete message. If the user equipment itself still stores the message type used for the handover completion, indicating whether to reset the high-speed shared MAC entity, and the transaction identifier of the handover completion message is sent, and the network device does not want to change the original configuration, the network device may not The three pieces of information are sent to the user equipment, and the user equipment can continue to use the original information.

If the foregoing three pieces of information do not exist in the user equipment, the user equipment may obtain, after switching to the second cell, the message type used for completing the handover to the second cell, indicating whether to reset the high-speed shared MAC entity, and send the handover completion message. The three information are used to configure the first cell as a pre-configured cell for fast handover, because the above three information can be used between the cells.

In this embodiment, the user equipment obtains the indication information from the handover command sent by the network device, and configures the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell currently in which the user equipment is located. Since the user equipment has previously configured the first cell of the serving cell as the pre-configured cell of the fast handover, when the user equipment needs to switch from the other cell to the first cell that is still in the active set, the first The cell has been configured as a pre-configured cell for fast handover. Therefore, the user equipment can quickly switch back to the first cell by using the fast handover mechanism, and can ensure the success rate of the handover.

The following describes the network device in the embodiment of the present invention. Referring to FIG. 9, FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. The network device may be an access network device, such as an RNC or a base station, where the network is The device includes: a determining unit 901, configured to determine a pre-configured cell that configures the first cell to be a fast handover, and a sending unit 902, configured to send, to the user equipment, indication information, to indicate that the user equipment configures the first cell as a pre-matching of the fast handover The first cell is a serving cell where the user equipment is currently located.

In another embodiment of the present invention, the determining unit 901 may include a first determining unit 9011 or a second determining unit 9012 or a third determining unit 9013, and the sending unit 902 may include a first sending unit 9021 or a second sending unit 9022 or The third transmitting unit 9023.

The first determining unit 9011 is configured to determine, when the user equipment is configured to send a dedicated message to the user equipment, the high-speed downlink shared channel or the high-speed uplink channel of the first cell, to configure the first cell to be a fast-switched pre-configured cell; The first sending unit 9021 is configured to carry the indication information in a dedicated message and send the information to the user equipment. - a second determining unit 9012, configured to: when the user equipment is required to send or delete the second cell, to determine that the first cell is a fast-switched pre-configured cell, and the second cell is not a user equipment Correspondingly, the second sending unit 9022 is configured to carry the indication information in the active set update command and send the information to the user equipment.

The third determining unit 9013 is configured to: when the handover command from the first cell to the second cell is sent to the user equipment, determine that the first cell is a pre-configured cell that is fast-switched, and the second cell is not the cell where the user equipment is currently located; Correspondingly, the third sending unit 9023 is configured to carry the indication information in the handover command and send the information to the user equipment.

For the sake of understanding, the interaction between the units of the network device in this embodiment is described in an application scenario.

In the traditional cell handover process, the signal interference and the signal fast fading result in a high failure rate of the handover. Therefore, in this embodiment, the fast handover mechanism is adopted, and the determining unit 901 predetermines that the first cell is configured as a pre-configured cell for fast handover. The first cell is a serving cell where the user equipment is currently located.

In another embodiment of the present invention, the first determining unit 9011 may determine, when the first sending unit 9021 sends a dedicated message to the user equipment, that the first cell is configured as a pre-configured cell for fast handover, and the first sending unit 9021 is configured to the user equipment. The purpose of sending the dedicated message is to configure the high-speed downlink shared channel or the high-speed uplink channel of the first cell for the user equipment, and the first sending unit 9021 may carry the indication information in the dedicated message and send it to the user equipment, to indicate that the user equipment A cell is configured as a pre-configured cell for fast handover, and the first cell is a serving cell where the user equipment is currently located.

In another embodiment of the present invention, when the second sending unit 9012 sends the active set update command to the user equipment, the second determining unit 9012 determines that the first cell is configured as a pre-configured cell for fast handover, and the second sending unit 9022 The purpose of the user equipment to send the active set update command may be to require the user equipment to add or delete the second cell, where the second cell is not the serving cell where the user equipment is currently located. For example, the user equipment currently uses the first cell as the serving cell. When the second determining unit 9012 or the user equipment finds that the second cell meets the available condition, the second sending unit 9022 sends an active set update command to the user equipment, requesting the user equipment. The second cell is added to the active set, and the second cell is configured as a fast-switched pre-configured cell. The second sending unit 9022 can send the indication information to the user equipment in the active set update command to indicate that the user equipment is to be the first. The cell is configured as a pre-configured cell for fast handover, and the first cell is a serving cell where the user equipment is currently located.

In another embodiment of the present invention, the above activation set update command may also be used to update an activation set. - a parameter of the cell in the middle, or used to replace a cell in the active set with a cell that does not exist in the active set, or to add the first cell to the active set of the user equipment.

In another embodiment of the present invention, when the third sending unit 9013 sends a handover command to the user equipment, the third determining unit 9013 determines that the first cell is a fast-switched pre-configured cell, and the third sending unit 9023 sends the user equipment to the user equipment. The purpose of the handover command is to request the user equipment to switch from the first cell to the second cell, and the third sending unit 9023 may send the indication information to the user equipment in the handover command to indicate that the user equipment configures the first cell as a fast handover. The pre-configured cell, the first cell is the serving cell where the user equipment is currently located.

In another embodiment of the present invention, since the first cell is a serving cell where the user equipment is currently located, the user equipment itself saves relevant configuration data using the first cell, so the first sending unit 9021 or the second sending unit 9022, or the third sending unit 9023, when sending the indication information to the user equipment to indicate that the user equipment configures the first cell as the pre-configured cell of the fast handover, does not need to send the relevant configuration data of the first cell to the user equipment, which saves Signaling overhead.

In this embodiment, the determining unit determines to configure the first cell to be a fast-switched pre-configured cell when the sending unit sends a handover command to the user equipment, or activates the set update command, or the handover command, and the sending unit carries the indication information in the foregoing command. The user equipment is sent to the user equipment to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, and the first cell is a serving cell where the user equipment is currently located. Since the transmitting unit has previously transmitted the indication information to the user equipment to instruct the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the first used previously in the active set In the case of a cell, since the first cell has been configured as a pre-configured cell for fast handover, the fast handover function can be used to ensure the success rate of handover.

The following describes the user equipment in the embodiment of the present invention. Referring to FIG. 10, it is a schematic structural diagram of a user equipment according to another embodiment of the present invention. The user equipment includes: an acquiring unit 1001, configured to acquire indication information sent by a network device. The configuration unit 1002 is configured to configure the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell where the user equipment is currently located.

In another embodiment of the present invention, the obtaining unit 1001 includes: a first obtaining unit 10011, configured to obtain indication information from a dedicated message sent by the network device; or a second obtaining unit 10012, configured to send from the network device Obtaining the indication information in the activation of the set update command; or the third obtaining unit 10013, configured to obtain the indication information from the handover command sent by the network device.

For ease of understanding, the following is an application scenario between the units of the user equipment in this embodiment. - - Description in interactive mode.

The obtaining unit 1001 obtains the indication information sent by the network device. In another embodiment of the present invention, the first obtaining unit 10011 may obtain the indication information from the dedicated message sent by the network device, where the dedicated message is used to configure the user equipment. a high-speed downlink shared channel or a high-speed uplink channel of the first cell, where the dedicated message carries the indication information; or the second acquisition unit 10012 obtains the indication information from the active set update command sent by the network device, where the set update command is activated. The user equipment may be used to add or delete the second cell, where the second cell is not the serving cell where the user equipment is currently located, or is used to update the parameters of the cell in the active set, or is used to utilize a certain cell that does not exist in the active set. Replacing a certain cell in the active set, or in the active set for adding the first cell to the user equipment, the active set update command carries the indication information; or is obtained by the third obtaining unit 10013 from the handover command sent by the network device. Instructing information, switching commands are used to request The user equipment is switched from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the handover command carries the indication information, and the handover command is fast switching from the first cell to the second cell. The handover command is either a normal handover command that is normally switched from the first cell to the second cell.

The configuration unit 1002 may configure the first cell as a fast-switched pre-configured cell according to the indication information acquired by the first obtaining unit 10011, or the second obtaining unit 10012, or the third obtaining unit 10013, where the first cell is the current service of the user. Community. In another embodiment of the present invention, the configuration unit 1002 updates the configuration information of the user equipment in the first cell to the pre-matching variable of the fast handover according to the indication information, where the configuration information includes the air interface identifier of the user equipment, and the service of the first cell. Configuration information of the high speed downlink shared channel HS-DSCH, cell configuration information of the service enhanced dedicated channel E-DCH, scrambling code information of the first cell, and the like.

In another embodiment of the invention, the configuration information includes the information in Listing 1 below.

- -

Information Need Type and Semantics description

Element/Group name

(requires (semantic description) element/group name)

Sex) (type and parameters)

Activation time offset (input) (0..255) (user equipment) is indicated in the triggering the pre-configured 1D measurement report (in the case of the integer (the number of the activation time offset is selected by the UE active time offset)) To the RNC (Radio Network Controller), the deadline for indicating the HS-SCCH (High Speed Dedicated Physical Control Channel) command to stop receiving the pre-configured cell (cutoff time = current content forwarding network reported to 1D + the amount of deviation)

New H-RNTK new high-speed MP must be H-RNTI UE logo

Line wireless network temporary identification) Save 10.3.3.14a

New Multi E- NTI (Primary Increase OP E-RNTI UE Logo

High-speed downlink of strong dedicated channel

10.3.3.10a

Line network temporary identification)

New Secondary E-RNTI OP E-RNTI 10.3.3.10a UE Logo

(Secondary enhanced dedicated channel speed

Downstream wireless network temporary identification) - -

Serving HS-DSCH cell MP Serving HS-DSCH service HS-DSCH cell configuration information (monthly high-speed downlink cell information λ 1-^ self,

Configuration information for link shared channel 10.3.6.74a

Interest)

E-DCH reconfiguration MP E-DCH service E-DCH cell configuration information information (service enhancement dedicated reconfiguration

Channel configuration information)

10.3.6.69a

DTX-DRX timing OP DTX-DRX timing Discontinuous transmission or discontinuous reception information (discontinuous transmission or timing configuration information of information) Timing configuration information for discontinuous reception 10.3.6.34b

Interest)

DTX-DRX Information (Not OP DTX-DRX Discontinuous or discontinuous reception Configuration information of continuously or discontinuously received Information

Configuration information) 10.3.6.34a

HS-SCCH less Information OP HS-SCCH less Reduces the configuration of HS-SCCH transmission

Information λ 1-^ From,

(Reduced high speed shared control channel

10.3.6.36ab

Configuration information sent)

MIMO parameters (multiple input OP MIMO parameters MIMO configuration information multiple output configuration information) 10.3.6.41a

MIMO mode with four OP MIMO mode with 4 transmit antenna MIMO mode transmit antennas four transmit

Parameters (4 antennas for transmitting antennas)

MIMO mode) parameters

10.3.6.142 - -

Downlink secondary cell OP Downlink Configuration information of the downlink secondary cell info FDD (frequency division duplex downlink secondary secondary cell info

Cell configuration information) FDD 10.3.6.31a

Additional downlink OP Additional downlink secondary cell configuration secondary cell info list FDD λ 1-^ From,

(Additional downlink secondary cell allocation

Set information)

>Downlink secondary cell OP Downlink FDD only

Info FDD (frequency division duplex subordinate secondary secondary cell info info

Cell configuration information) FDD 10.3.6.31a

Additional downlink OP Additional downlink secondary cell configuration secondary cell info list FDD information

2 (Additional downlink secondary cell allocation

Set information)

>Downlink secondary cell OP Downlink Configuration information of the downlink secondary cell info FDD (secondary cell of the secondary secondary cell info info

Set information) FDD 10.3.6.31a

Uplink secondary cell info OP Uplink secondary Configuration information of the uplink secondary cell FDD (configuration of the uplink secondary cell)

Information) 10.3.6.115

- -

E-DCH reconfiguration OP E-DCH E-DCH re-allocation on the secondary carrier frequency information on secondary reconfiguration

UL frequency (in the carrier frequency information on

Enhanced dedicated channel reconfiguration information) secondary UL

Frequency

10.3.6.121

Uplink CLTD info FDD (Upper OP Uplink CLTD info Configuration of uplink closed loop transmit diversity Configuration information of line closed loop transmit diversity FDD information

Interest)

10.3.6.125

F-TPICH reconfiguration OP F-TPICH small transmission precoding indication channel info (small transmission precoding indicates reconfiguration reconfiguration information

Channel reconfiguration information) info

10.3.6.128

Uplink OLTD info FDD (Upper OP Uplink OLTD info Configuration of uplink open loop transmit diversity Configuration information of open loop transmit diversity FDD λ 1-^自,

Interest)

10.3.6.126

UL 16QAM configuration OP UL 16QAM uplink 16QAM configuration information

(Upstream 16 quadrature amplitude modulation configuration

Set information) 10.3.6.86ο

UL 64QAM configuration OP UL 64QAM Upstream 64QAM configuration information

(Upstream 64 quadrature amplitude modulation configuration

Set information) 10.3.6.86b

Uplink MIMO info FDD (upper OP Uplink MIMO info uplink MIMO configuration information line MIMO configuration information) FDD 10.3.6.145 ~ ~

The configuration information of the service high-speed downlink shared channel HS-DSCH of the first cell is as shown in Table 2.

- -

Service Enhancement Dedicated Channel The cell configuration information (only for FDD) of the E-DCH is shown in Table 3.

table 3

Information Element/Group Need Type and Semantics Version name (requires reference (type description (semantic (version)) and parameters) Description)

E-DCH RL Info new serving OP REL-6 cell of the new serving cell (enhanced new cell enhanced special channel

Use channel wireless link information) line link information - -

>Primary CPICH info (main public MP Primary CPICH indicates scheduling active set REL-6 pilot channel information) info 10.3.6.60 E-DCH small in the middle

Area information

>E-AGCH Info (Absolute authorization letter MP E-AGCH Info REL-6 channel configuration information for absolute authorization channel) 10.3.6.100 Configuration information

>E- OCH Info (relative authorization letter OP E- OCH Info Relative REL-11 channel configuration information for the authorized channel) FDD 10.3.6.146 Configuration information

>Serving Grant (Service Authorization) OP REL-6

»Serving Grant value (Enhanced OP Integer E-DCH Service Authorization REL-6 Index of the index of the dedicated channel service grant (0..37,38)

Value)

»Primary/ S econdary Grant MP Enumerated Indicates whether the service is granted REL-6 Selector (indicating whether the service is authorized, (primary, right, whether through the main

Whether to pass the E-RNTI of the primary E-RNTI or the secondary secondary)

E-RNTI to indicate) E-RNTI to indicate

>E-DPCCH/DPCCH power OP Integer (0..8) Power offset of the channel REL-6 offset (power offset of the channel)

> eference E-TFCIs (Refer to OP See [29] REL-6 E-TFCIs)

- -

» eference E-TFCI (Refer to MP Integer (0..127) Reference E-TFCI value REL-6 E-TFCI value)

» eference E-TFCI PO (refer to MP Integer (0..29, refer to E-TFCI's work REL-6 test E-TFCI power offset value) rate offset value

30, 31) REL-7

>Power Offset for Scheduling OP Integer (0..6) Power for scheduling REL-6 Info (power offset for scheduling) Offset

>3 -Index-Step OP Integer (0..37) REL-6 in "SG-Table"

Threshold (index value in "SG-Table")

Index value)

>2-Index-Step OP Integer (0..37) REL-6 in "SG-Table"

Threshold (index value in "SG-Table")

Index value)

>E-HICH Information (Preconfigured OP E-HICH Info Pre-configured E-HICH REL-6 E-HICH configuration information) 10.3.6.101 Configuration information

>CHOICE E-RGCH OP Select E-RGCH REL-6 Information (Select E-RGCH configuration information)

Configuration information)

»E- GCH Information (pre-MP E-RGCH Info pre-configured E-RGCH REL-6 configuration information for E-RGCH)

10.3.6.102 - -

»E- GCH release indicator E-RGCH release REL-6 (E-RGCH release indication) indication

E-DCH RL Info other cells (enhanced OP other cell enhancement REL-6 enhanced cell dedicated channel wireless dedicated channel wireless chain

Link information) road information

>Primary CPICH info (Main Common MP Primary CPICH Primary Common Pilot Channel REL-6 Pilot Channel Information) info 10.3.6.60 Information

>CHOICE E-HICH OP Select E-HICH information REL-6 Information (Select E-HICH letter

Interest)

»E-HICH Information MP E-HICH Info E-HICH configuration letter REL-6 (E-HICH configuration information) 10.3.6.101

»E-HICH release indicator E-HICH release refers to REL-6 (E-HICH release indication)

»Secondary TB E-HICH Release of E-HICH REL-11 release indicator (auxiliary E-HICH indication

Release indication)

Configuration information)

- -

If the user equipment does not have the above three messages, the network device may generate the foregoing message and send it to the user equipment through the RRC layer of the RRC.

In this embodiment, the acquiring unit obtains the indication information from the dedicated message sent by the network device, or activates the set update command, or the handover command, and the configuration unit configures the first cell as the fast-switched pre-configured cell according to the indication information, where the first The cell is the serving cell where the user equipment is currently located. Since the configuration unit has previously configured the first cell of the serving cell as the pre-configured cell of the fast handover, when the user equipment needs to switch from the other cell to the first cell that is still in the active set, the first The cell has been configured as a fast-switched pre-configured cell, so the user equipment can quickly switch back to the first cell using the fast handover mechanism, and the success rate of the handover can be guaranteed.

The following is a further description of the network device in the embodiment of the present invention. Referring to FIG. 11, another embodiment of the network device in the embodiment of the present invention includes: a first processor 1101 and a transmitter 1102.

The first processor 1101 performs the following process:

Determining that the first cell is configured as a pre-configured cell for fast handover.

The sender 1102 performs the following process:

The indication information is sent to the user equipment to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, where the first cell is a serving cell where the user equipment is currently located.

Specifically, the first processor 1101 determines that the first cell is a fast-switched pre-configured cell when the user equipment allocates a dedicated message to the user equipment to configure the high-speed downlink shared channel or the high-speed uplink channel of the first cell; The transmitter 1102 carries the indication information in a dedicated message and sends it to the dedicated message. - - User equipment.

Or the first processor 1101 is configured to send an active set update command to the user equipment, to request the user equipment to add or delete the second cell, and determine that the first cell is a fast-switched pre-configured cell, where the second cell is not the current service of the user equipment. Correspondingly, the sender 1102 carries the indication information in the active set update command and sends it to the user equipment.

Or the first processor 1101 determines to configure the first cell to be a fast-switched pre-configured cell when the handover command is switched from the first cell to the second cell, and the second cell is not the cell where the user equipment is currently located, and the handover command is used. a fast handover command to quickly switch from the first cell to the second cell, or a normal handover command from the first cell to the second cell; correspondingly, the transmitter 1102 carries the indication information in the handover command and sends the indication information to the user. device.

In another embodiment of the present invention, since the first cell is the serving cell where the user equipment is currently located, the user equipment itself saves relevant configuration data using the first cell, so the sender sends the indication information to the user equipment to indicate the user equipment. When the first cell is configured as a fast-switched pre-configured cell, the configuration data of the first cell is no longer needed to be sent to the user equipment, which saves signaling overhead.

In this embodiment, the first processor determines that the first cell is configured as a pre-configured cell that is fast-switched, and the transmitter sends the indication information to the user equipment to indicate that the user equipment configures the first cell as a pre-configured cell that is fast-switched. The cell is the serving cell where the user equipment is currently located. Since the transmitter has previously sent the indication information to the user equipment to instruct the user equipment to configure the first cell as a pre-configured cell for fast handover, when the user equipment needs to switch back from other cells to the first used previously in the active set In the case of a cell, since the first cell has been configured as a pre-configured cell for fast handover, the fast handover function can be used to ensure the success rate of handover.

The following is a description of the user equipment in the embodiment of the present invention. Referring to FIG. 12, another embodiment of the user equipment in the embodiment of the present invention includes: a receiver 1201 and a second processor 1202.

The receiver 1201 performs the following process:

Obtain the indication information sent by the network device.

The second processor 1202 performs the following process:

The first cell is configured as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell where the user equipment is currently located.

Specifically, the receiver 1201 may obtain indication information from a dedicated message sent by the network device, where the dedicated message is used to configure the high-speed downlink shared channel or the high-speed uplink signal of the first cell for the user equipment. - - Channel, the private message carries the indication information.

Or the receiver 1201 may obtain the indication information from the activation set update command sent by the network device, where the activation set update command is used to request the user equipment to add or delete the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the active set update is activated. The command carries the indication information.

Or the receiver 1201 may obtain the indication information from the handover command sent by the network device, where the handover command is used to request the user equipment to switch from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the handover is performed. The command carries the indication information, and the handover command is a fast handover command that is quickly switched from the first cell to the second cell, or is a normal handover command that is normally switched from the first cell to the second cell.

The second processor 1202 may be configured to update the configuration information of the user equipment in the first cell to the fast according to the indication information acquired by the receiver 1201. The configuration information of the handover includes at least one of an air interface identifier of the user equipment, configuration information of the serving high speed downlink shared channel of the first cell, cell configuration information of the service enhanced dedicated channel, and 4 special code information of the first cell. .

In this embodiment, the receiver acquires the indication information, and the second processor configures the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell where the user equipment is currently located. Since the second processor has previously configured the currently located serving cell first cell as the fast-switched pre-configured cell, when the user equipment needs to switch from another cell to the previously located first cell still in the active set, The first cell has been configured as a fast-switched pre-configured cell, so the user equipment can quickly switch back to the first cell using the fast handover mechanism, and can guarantee the success rate of the handover.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. - The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. on. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents; and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for switching a serving cell, characterized in that it comprises:

The network device determines that the first cell is configured as a pre-configured cell for fast handover;

The network device sends the indication information to the user equipment to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, where the first cell is a service cell where the user equipment is currently located.

2. The method according to claim 1, wherein the determining, by the network device, that the first cell is configured as a fast handover pre-configured cell comprises:

Determining, by the network device, that the first cell is a fast-switched pre-configured cell when the user equipment is configured to send a dedicated message to the user equipment to configure the high-speed downlink shared channel or the high-speed uplink channel of the first cell;

The sending, by the network device, the indication information to the user equipment is specifically:

The network device carries the indication information in the dedicated message and sends the indication information to the user equipment.

The method according to claim 1, wherein the determining, by the network device, that the first cell is a fast-switched pre-configured cell comprises:

The network device sends an activation set update command to the user equipment, to determine that the user equipment adds or deletes the second cell, and determines that the first cell is configured as a fast handover pre-configured cell, where the second cell is not the The serving cell where the user equipment is currently located;

The network device carries the indication information in the activation set update command and sends the indication information to the user equipment.

When the network device sends a handover command from the first cell to the second cell to the user equipment, the network device determines that the first cell is a fast-switched pre-configured cell, and the second cell is not the current user equipment. The handover command is a fast handover command from the first cell to the second cell, or an ordinary handover command from the first cell to the second cell; The sending, by the network device, the indication information to the user equipment is specifically:

The network device carries the indication information in the handover command and sends the indication information to the user equipment.

The method of claim 4, wherein the network device is a radio network controller RNC or a base station device NodeB, and when the handover command is the fast handover command, the network device is the The base station device NodeB of the second cell, when the handover command is a normal handover command, the network device is an RNC of the first cell.

A handover method for a serving cell, characterized in that it comprises:

The user equipment acquires indication information sent by the network device;

The user equipment configures the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell where the user equipment is currently located.

The method according to claim 6, wherein the user equipment obtains the indication information sent by the network device, specifically:

The user equipment acquires the indication information from a dedicated message sent by the network device, where the dedicated message is used to configure a high-speed downlink shared channel or a high-speed uplink channel of the first cell for the user equipment, The indication message is carried in the dedicated message.

The user equipment acquires the indication information from an activation set update command sent by the network device, where the activation set update command is used to request the user equipment to add or delete a second cell, where the second cell is not the The service cell in which the user equipment is currently located, the activation set update command carries the indication information.

The user equipment acquires the indication information from a handover command sent by the network device, where the handover command is used to request the user equipment to switch from the first cell to a second cell, where the second cell is not The service cell in which the user equipment is currently located, where the handover command carries the indication information, where the handover command is a fast handover command from the first cell to the second cell, or The first cell normally switches to the normal handover command of the second cell.

The method according to any one of claims 6 to 9, wherein the user equipment root The pre-configured cell configured to configure the first cell as the fast handover according to the indication information is specifically:

The user equipment updates the configuration information of the user equipment in the first cell to the fast-switching pre-matching variable according to the indication information, where the configuration information includes at least an air interface identifier of the user equipment, and the first cell. One of the configuration information of the high speed downlink shared channel, the cell configuration information of the service enhanced dedicated channel, and the 4th code information of the first cell.

A network device, comprising:

a determining unit, configured to determine a pre-configured cell configured to configure the first cell as a fast handover;

And a sending unit, configured to send the indication information to the user equipment, to indicate that the user equipment configures the first cell as a fast-switched pre-configured cell, where the first cell is a serving cell where the user equipment is currently located.

The network device according to claim 11, wherein the determining unit comprises: a first determining unit, configured to: configure a first cell for the user equipment by sending a dedicated message to the user equipment Determining that the first cell is a pre-configured cell for fast handover when the high speed downlink shared channel or the high speed uplink channel is used;

The sending unit includes:

The first sending unit is configured to carry the indication information in the dedicated message and send the information to the user equipment.

The network device according to claim 11, wherein the determining unit comprises: a second determining unit, configured to send an activation set update command to the user equipment, to request the user equipment to add or delete Determining, by the second cell, that the first cell is a pre-configured cell that is fast-switched, and the second cell is not a serving cell where the user equipment is currently located;

The sending unit includes:

And a second sending unit, configured to carry the indication information in the active set update command, and send the information to the user equipment.

The network device according to claim 11, wherein the determining unit comprises: a third determining unit, configured to send a handover command from the first cell to the second cell to the user equipment Determining that the first cell is a fast-switched pre-configured cell, the second cell is not the cell where the user equipment is currently located, and the handover command is fast switching from the first cell to the second cell. a handover command, or an ordinary handover command that is normally switched from the first cell to the second cell; The sending unit includes:

And a third sending unit, configured to carry the indication information in the handover command and send the information to the user equipment.

The network device according to claim 14, wherein the network device is a radio network controller RNC or a base station device NodeB, and when the handover command is the fast handover command, the network device is The base station device NodeB of the second cell, when the handover command is a normal handover command, the network device is an RNC of the first cell.

16. A user equipment, comprising:

An obtaining unit, configured to acquire indication information sent by the network device;

And a configuration unit, configured to configure, according to the indication information, the first cell as a pre-configured cell that is fast-switched, where the first cell is a serving cell where the user equipment is currently located.

The user equipment according to claim 16, wherein the acquiring unit comprises: a first acquiring unit, configured to acquire the indication information, the dedicated message, from a dedicated message sent by the network device And configured to configure the high-speed downlink shared channel or the high-speed uplink channel of the first cell for the user equipment, where the dedicated message carries the indication information.

The user equipment according to claim 16, wherein the acquiring unit comprises: a second obtaining unit, configured to acquire the indication information from an active set update command sent by the network device, where the The set update command is used to request the user equipment to add or delete the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the activation set update command carries the indication information.

The user equipment according to claim 16, wherein the acquiring unit comprises: a third obtaining unit, configured to acquire the indication information from a handover command sent by the network device, where the handover command is used The user equipment is required to be handed over from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the switching command carries the indication information, the switching command A fast handover command for quickly switching from the first cell to the second cell, or a normal handover command from the first cell to the second cell.

The user equipment according to any one of claims 16 to 19, wherein the pre-configured cell configured by the configuration unit to configure the first cell as the fast handover according to the indication information is specifically:

And the configuration unit updates the configuration information of the user equipment in the first cell to the fast-switched pre-matching variable according to the indication information, where the configuration information includes at least an empty space of the user equipment. The port identifier, the configuration information of the service high speed downlink shared channel of the first cell, the cell configuration information of the service enhanced dedicated channel, and one of the 4th code information of the first cell.

21. A network device, comprising:

a first processor, configured to determine a pre-configured cell configured to configure the first cell as a fast handover;

And a transmitter, configured to send the indication information to the user equipment, to indicate that the user equipment configures the first cell as a pre-configured cell for fast handover, where the first cell is a service cell where the user equipment is currently located.

The network device according to claim 21, wherein the first processor is further configured to: configure a high-speed downlink of the first cell for the user equipment by sending a dedicated message to the user equipment Determining a pre-configured cell in which the first cell is a fast handover when the shared channel or the high-speed uplink channel is used;

The network device according to claim 21, wherein the first processor is further configured to: when sending an active set update command to the user equipment, to request the user equipment to add or delete a second cell Determining that the first cell is a pre-configured cell that is fast-switched, and the second cell is not a serving cell where the user equipment is currently located;

The network device according to claim 21, wherein the first processor is further configured to determine a configuration when transmitting a handover command from the first cell to the second cell to the user equipment. a cell is a fast-switched pre-configured cell, the second cell is not a cell in which the user equipment is currently located, and the handover command is a fast handover command from the first cell to the second cell, or The normal switching command is used to switch from the first cell to the second cell. The transmitter is further configured to carry the indication information in the handover command and send the information to the user equipment.

25. A user equipment, comprising:

a receiver, configured to acquire indication information sent by the network device;

And a second processor, configured to configure the first cell as a fast-switched pre-configured cell according to the indication information, where the first cell is a serving cell where the user equipment is currently located.

The user equipment according to claim 25, wherein the receiver is further configured to acquire the indication information from a dedicated message sent by the network device, where the dedicated message is used for the user The device configures a high speed downlink shared channel or a high speed uplink channel of the first cell, where the dedicated message carries the indication information.

The user equipment according to claim 25, wherein the receiver is further configured to acquire the indication information from an activation set update command sent by the network device, where the activation set update command is used for requesting The user equipment adds or deletes the second cell, where the second cell is not the serving cell where the user equipment is currently located, and the activation set update command carries the indication information.

The user equipment according to claim 25, wherein the receiver is further configured to acquire the indication information from a handover command sent by the network device, where the handover command is used to request the user equipment Switching from the first cell to the second cell, where the second cell is not the serving cell where the user equipment is currently located, the handover command carries the indication information, and the handover command is from the first The cell quickly switches to the fast handover command of the second cell, or is a normal handover command that is normally switched from the first cell to the second cell.

The user equipment according to any one of claims 25 to 28, wherein the second processor is configured to configure the first cell as a fast-switched pre-configured cell according to the indication information: The second processor updates the configuration information of the user equipment in the first cell to the fast-switching pre-matching variable according to the indication information, where the configuration information includes at least an air interface identifier of the user equipment, and a first cell One of the configuration information of the high speed downlink shared channel, the cell configuration information of the service enhanced dedicated channel, and the 4th code information of the first cell.