CN102870466B - The method of transmission measurement information, equipment and system - Google Patents
The method of transmission measurement information, equipment and system Download PDFInfo
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- CN102870466B CN102870466B CN201280000971.5A CN201280000971A CN102870466B CN 102870466 B CN102870466 B CN 102870466B CN 201280000971 A CN201280000971 A CN 201280000971A CN 102870466 B CN102870466 B CN 102870466B
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 230000005540 biological transmission Effects 0.000 title abstract description 47
- 238000012790 confirmation Methods 0.000 claims description 13
- 230000006854 communication Effects 0.000 abstract description 25
- 238000004891 communication Methods 0.000 abstract description 22
- 230000011664 signaling Effects 0.000 description 14
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- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The method, the equipment and system that the invention discloses a kind of transmission measurement information, relate to the communications field, for solving the problem not in time of transmission of the process metrical information of switching to Target cell from cell-of-origin at UE. Method provided by the invention comprises: the first base station of controlling the first community sends metrical information to the second base station of controlling the second community, and described metrical information comprises the measurement result of user terminal measurement the second community gained; Described metrical information is carried at the first base station in the handover request message of the second base station transmission, or described metrical information is carried at that switching that the first base station sends to mobile management entity MME needs in message and described MME sends in the handover request message of the second base station receiving after described switching needs message. The present invention is applicable to the communications field, for carry out minizone transmission measurement information while switching at UE.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, device, and system for transmitting measurement information.
Background
In an LTE (long term evolution) system, when a UE (user equipment) is switched from a source cell to a target cell, the target base station needs to schedule the UE according to a channel quality between the UE and the target cell. In the existing switching process, measuring the channel quality between the UE and a target cell by the UE; after the UE determines to perform handover to the target cell, the channel quality may be carried in ul data (ul data) or a Physical Uplink Control Channel (PUCCH) and reported to the target base station, and the target base station determines a Modulation and Coding Scheme (MCS) according to the channel quality and schedules the UE according to the MCS.
It can be seen that, in the process of switching the existing UE from the source cell to the target cell, before the UE sends the ul data or the PUCCH, the target base station cannot timely acquire measurement information such as channel quality between the UE and the target cell, so that the data transmission rate between the UE and the target cell is low, or the data transmission accuracy is poor.
Disclosure of Invention
Embodiments of the present invention provide a scheduling method and apparatus in a handover process between cells, which can solve the problem that transmission of measurement information is not timely in a handover process of a UE from a source cell to a target cell.
In one aspect, the present invention provides a scheduling method in an inter-cell handover process, where the method includes:
a first base station controlling a first cell transmits a measurement signal to a second base station controlling a second cell
The measurement information comprises a measurement result obtained by the user terminal measuring the second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message;
the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
On the other hand, the invention also provides a transmission method of the measurement information, which comprises the following steps:
a second base station controlling a second cell receives measurement information from a first base station controlling a first cell, wherein the measurement information comprises a measurement result obtained by a user terminal measuring the second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message;
the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
Optionally, in each of the above solutions, when the measurement information is carried in a handover request message sent by the first base station to the second base station, the measurement information is included in a measurement result information element in the handover request message.
Optionally, in each of the foregoing solutions, when the measurement information is carried in a handover request message sent by the first base station to the second base station, the method further includes: the first base station receives a switching request confirmation message sent by the second base station; wherein the handover request acknowledgement message carries radio resource information allocated by the second base station to the user equipment.
Optionally, in each of the above solutions, when the measurement information is carried in a handover required message sent by the first base station to a mobility management entity MME and the MME receives a handover request message sent by the handover required message to the second base station, the measurement information is included in the handover required message and/or a source-to-target transparent transmission container in the handover request message. Optionally, the measurement information is contained in a radio resource management RRC container in the source-to-target transparent transmission container.
Optionally, in each of the foregoing solutions, when the measurement information is carried in a handover required message sent by the first base station to a mobility management entity MME and in a handover request message sent by the MME to the second base station after receiving the handover required message, the method further includes: the first base station receives a switching command message from the MME, wherein the switching command message is sent by the MME after receiving a switching request confirmation message sent by the second base station; the handover command message includes radio resource information allocated by the second base station to the user equipment, so that the user equipment can communicate with the second base station according to the radio resource information.
In another aspect, the present invention further provides a method for transmitting measurement information, where the method includes:
a mobile management entity MME receives a switching required message sent by a first base station controlling a first cell, wherein the switching required message comprises measurement information;
the MME sends a switching request message to a second base station controlling a second cell, wherein the switching request message comprises the measurement information;
the measurement information comprises a measurement result obtained by the user terminal measuring the second cell; the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
Optionally, in the above scheme, the measurement information is included in a source-to-target transparent transmission container in the handover required message and/or the handover request message. Optionally, the measurement information is contained in an RRC container in the source-to-target transparent transmission container.
Optionally, in the foregoing scheme, the method further includes that the MME receives a handover request acknowledgement message sent by the second base station, and the MME sends a handover command message to the first base station, where the handover command message includes radio resource information allocated by the second base station to the user terminal, so that the user terminal communicates with the second base station according to the radio resource information.
Optionally, in each of the above schemes, the measurement information is used by the second base station to perform uplink scheduling and/or downlink scheduling on the user terminal. Optionally, the measurement result includes quality of a channel between the user terminal and the second cell.
In another aspect, the present invention also provides an apparatus, comprising:
a first sending unit, configured to send measurement information to a second base station controlling a second cell, where the measurement information includes a measurement result obtained by a user terminal measuring the second cell; the measurement information is carried in a handover request message sent by the first sending unit to the second base station, or the measurement information is carried in a handover required message sent by the first sending unit to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message;
the device controls a first cell, where the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
Optionally, the apparatus further includes a first receiving unit, wherein: when the measurement information is carried in a handover request message sent by the first sending unit to the second base station, the first receiving unit is configured to receive a handover request acknowledgement message sent by the second base station; wherein, the handover request acknowledgement message carries the radio resource information allocated by the second base station to the user equipment; or,
when the measurement information is carried in a handover required message sent by the first sending unit to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message, the first receiving unit is configured to receive a handover command message from the MME, where the handover command message is sent by the MME after receiving a handover request acknowledgement message sent by the second base station; the handover command message includes radio resource information allocated by the second base station to the user equipment, so that the user equipment can communicate with the second base station according to the radio resource information.
In another aspect, the present invention also provides an apparatus, comprising:
a second receiving unit, configured to receive measurement information from a first base station controlling a first cell, where the measurement information includes a measurement result obtained by a user terminal measuring a second cell; the measurement information is carried in a handover request message sent by the first base station to the device, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the device after receiving the handover required message;
the device controls a second cell, where the first cell is a source cell of the ue and the second cell is a target cell of the ue.
Optionally, the apparatus further includes a second sending unit, where: when the measurement information is carried in a handover request message sent by the first base station to the device, the second sending unit is configured to send a handover request acknowledgement message to the first base station; the switching request confirmation message carries wireless resource information distributed by the equipment to the user terminal, so that the user terminal can communicate with the equipment according to the wireless resource information; or,
when the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the device after receiving the handover required message, the second sending unit is configured to send a handover request acknowledgement message to the MME, and the MME sends a handover command message to the first base station after receiving the handover request acknowledgement message; the handover command message includes radio resource information allocated by the device to the ue, so that the ue communicates with the device according to the radio resource information.
In another aspect, the present invention also provides an apparatus, comprising:
a third receiving unit, configured to receive a handover required message sent by a first base station controlling a first cell, where the handover required message includes measurement information; and a process for the preparation of a coating,
a third sending unit, configured to send a handover request message to a second base station controlling a second cell, where the handover request message includes the measurement information;
the measurement information comprises a measurement result obtained by the user terminal measuring the second cell; the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
Optionally, the third receiving unit is further configured to receive a handover request acknowledgement message sent by the second base station;
the third sending unit is further configured to send a handover command message to the first base station, where the handover command message includes radio resource information allocated by the second base station to the user equipment, so that the user equipment communicates with the second base station according to the radio resource information.
In another aspect, the present invention further provides a communication system, which includes a first base station controlling a first cell, a second base station controlling a second cell, and a mobility management entity MME, where the first cell is a source cell of a user terminal, and the second cell is a target cell of the user terminal; wherein:
the first base station is configured to send measurement information to the second base station, where the measurement information includes a measurement result obtained by a user equipment measuring the second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message;
the second base station is used for receiving measurement information from the first base station, wherein the measurement information comprises a measurement result obtained by a user terminal measuring a second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the second base station after receiving the handover required message;
the MME is used for receiving a switching required message sent by the first base station, and the switching required message comprises measurement information; and sending a handover request message to the second base station, the handover request message including the measurement information.
The method, the equipment and the system provided by the technical scheme can solve the problem that the transmission of the measurement information is not timely in the process of switching the existing UE from the source cell to the target cell, further ensure the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the target cell and ensure the communication quality.
Drawings
FIG. 1 is a schematic flow chart of a method provided by an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method provided by another embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method provided by another embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method provided by another embodiment of the present invention;
FIG. 5 is a schematic flow chart of a method provided by another embodiment of the present invention;
FIG. 6 is a block diagram of an apparatus according to another embodiment of the present invention;
FIG. 7 is a block diagram of an apparatus according to another embodiment of the present invention;
FIG. 8 is a block diagram of an apparatus provided by another embodiment of the present invention;
fig. 9 is a block diagram of a system according to another embodiment of the present invention.
Detailed Description
The following describes a scheduling method and apparatus in a handover procedure between cells in detail in accordance with an embodiment of the present invention with reference to the accompanying drawings.
An embodiment of the present invention provides a method for transmitting measurement information, as shown in fig. 1, the method including the following steps:
101. a first base station controlling a first cell sends measurement information to a second base station controlling a second cell, wherein the measurement information comprises a measurement result obtained by a user terminal measuring the second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to an MME (mobile management entity) and a handover request message sent by the MME to the second base station after receiving the handover required message. The first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
It should be noted that, when the first base station establishes a connection with the second base station through an X2 interface, the first base station carries the measurement information in a handover request message sent by the first base station to the second base station;
when the first base station establishes connection with the second base station through an S1 interface, the first base station carries the measurement information in a handover required message sent by the first base station to an MME, and after receiving the handover required message, the MME carries the measurement information in a handover request message sent to the second base station, so that the second base station obtains the measurement information.
After the second base station acquires the measurement information, the second base station can allocate radio resources to the user terminal according to the measurement information, so that the user terminal can communicate with the second base station through the radio resources.
Optionally, the method provided in this embodiment further includes the following steps:
102. and the first base station acquires the wireless resource information distributed by the second base station for the user terminal.
Specifically, after acquiring the radio resource information, the first base station may send the radio resource information to the user terminal, so that the user terminal can communicate with the second base station.
According to the transmission method of the measurement information provided by the embodiment of the invention, in the process of switching the UE from the source cell to the target cell, the base station of the control source cell can send the measurement information to the base station of the control target cell in time, so that the wireless resource information distributed to the user terminal by the base station of the control target cell is obtained in time, the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the control target cell can be further ensured, and the communication quality is ensured.
Another embodiment of the present invention provides a method for transmitting measurement information, as shown in fig. 2, the method including the steps of:
201. a second base station controlling a second cell receives measurement information from a first base station controlling a first cell, wherein the measurement information comprises a measurement result obtained by a user terminal measuring the second cell; the measurement information is carried in a handover request message sent by the first base station to the second base station, or the measurement information is carried in a handover required message sent by the first base station to an MME and a handover request message sent by the MME to the second base station after receiving the handover required message. The first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
It should be noted that, when the second base station establishes a connection with the first base station through an X2 interface, the measurement information is carried in a handover request message sent by the first base station to the second base station;
when the second base station establishes connection with the first base station through an S1 interface, the measurement information is carried in a handover required message sent by the first base station to an MME, and the MME sends the second base station with the measurement information carried in a handover request message after receiving the handover required message.
The first base station carries the measurement information in a handover required message sent by the first base station to an MME, and the MME carries the measurement information in a handover request message sent to the second base station after receiving the handover required message, so that the second base station acquires the measurement information.
202. And the second base station receives the measurement information, obtains a measurement result obtained by measuring the second cell by the user terminal, and determines the channel quality between the user terminal and the second base station.
It should be noted that, in step 202, it is optional, and after obtaining the channel quality between the user equipment and the second base station, the second base station may allocate radio resource information to the user equipment according to the channel quality, so as to perform uplink scheduling and/or downlink scheduling on the user equipment.
According to the transmission method of the measurement information provided by the embodiment of the invention, in the process of switching the UE from the source cell to the target cell, the base station controlling the target cell can timely acquire the measurement result obtained by measuring the target cell by the UE, so that the wireless resource information is timely distributed to the user terminal, the transmission rate and the transmission accuracy of signaling and data between the UE and the base station controlling the target cell can be ensured, and the communication quality is ensured.
Another embodiment of the present invention provides a method for transmitting measurement information, as shown in fig. 3, the method includes the following steps:
301. the MME receives a switching required message sent by a first base station controlling a first cell, wherein the switching required message comprises measurement information.
It should be noted that the method provided in this embodiment may be implemented by an MME, or may be implemented by other network element devices having the function of an MME, which is not limited herein.
302. The MME sends a switching request message to a second base station controlling a second cell, wherein the switching request message comprises the measurement information.
The measurement information comprises a measurement result obtained by the user terminal measuring the second cell; the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal; in this embodiment, the first base station and the second base station are connected through an S1 interface.
In the transmission method of measurement information provided by the embodiment of the invention, in the process of switching the UE from the source cell to the target cell, the MME can acquire the measurement result obtained by measuring the target cell by the UE from the base station of the control source cell in time and send the measurement result to the base station of the control target cell, so that the base station of the control target cell acquires the measurement result in time, the base station of the control target cell allocates the wireless resource information to the user terminal in time, the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the control target cell are ensured, and the communication quality is ensured.
The following describes the transmission method of measurement information according to the embodiment of the present invention.
Another embodiment of the present invention provides a method for transmitting measurement information, which is suitable for a handover procedure based on an X2 interface in an LTE system, and as shown in fig. 4, the method includes the following steps:
401. the UE receives a measurement control (MeasCrtol) message issued by a base station controlling a source cell (i.e., a cell in which the UE is currently located), and measures signal quality of the source cell and a neighboring cell to obtain a measurement report.
The measurement report includes measurement results obtained by the UE measuring the source cell and neighboring cells of the source cell (hereinafter referred to as neighboring cells), where the measurement results may include a result indicating quality of a channel between the UE and the source cell and a result indicating quality of a channel between the UE and the neighboring cells of the source cell, and are used for a base station controlling the source cell to determine whether the UE performs handover.
402. And the UE reports the measurement report to a base station controlling the source cell, wherein the measurement report comprises measurement results of each cell obtained by measuring the source cell and the adjacent cell by the UE.
For convenience of description, in this embodiment, the base station controlling the source cell is taken as the first base station, and the base station controlling the target cell is taken as the second base station.
403. The first base station judges whether the UE needs to be switched to an adjacent cell or not according to the measurement report; if yes, selecting the cell with the best channel quality with the UE as the target cell of the UE, and performing step 404; and if not, the first base station continues to provide communication service for the UE.
404. The first base station sends a handover request message (HandoverRequest) to the second base station, where the handover request message carries measurement information, the measurement information includes measurement results obtained by the UE measuring the target cell and measurement information of the measurement results obtained by the UE measuring the target cell, and the measurement results include quality of a channel between the UE and the target cell.
Optionally, the handover request message further carries an identifier of the target cell, which is used for the second base station to determine the target cell to which the UE needs to be handed over
Wherein the measurement information is included in a measurement result information element in the handover request message. Optionally, the first base station may add a MeasResults message cell in the handover request message, that is: and carrying the measurement information in the MeasResults message cell and sending the MeasResults message cell to the second base station.
For example, The specific content of The MeasResults cell may be The same as or similar to The content of The MeasResults information eutra in The MeasResults information element (measurement result cell) that is generated by The UE after completing The measurement and meets The 36.331 protocol specification of 3GPP (The 3rd generation partnership project) or The MeasResults information element for The target cell, which is generated by The UE, and is not limited herein.
405. And the second base station receives the switching request message sent by the first base station, determines a target cell to be switched by the UE, acquires the measurement information from the switching request message, acquires a measurement result obtained by measuring the target cell by the UE, and determines the quality of a channel between the UE and the target cell according to the measurement result.
406. And the second base station allocates wireless resources for the UE according to the quality of the channel between the UE and the target cell.
For example, the second base station may set an MCS value according to the quality of the channel between the UE and the target cell, and allocate an RB (resource block) to the UE according to the MCS value, so that the UE communicates with the second base station according to the RB allocated to the UE by the second base station, so that the second base station performs uplink scheduling and/or downlink scheduling on the UE.
It should be noted that, in the LTE system, when performing uplink and downlink scheduling on the UE, it is necessary to set an MCS value according to the communication quality between the UE and the base station, and then allocate an RB to the UE according to the MCS value, thereby completing scheduling of the UE. For example, if the quality of the channel between the UE and the target cell is high, the second base station may set a large MCS value for the UE, allocate fewer RBs to the UE on the premise of ensuring the communication quality, and select a large code rate to implement transmission of signaling and data between the UE and the second base station, so as to ensure the transmission quality and transmission speed of the signaling and data in the communication process.
407. And the second base station sends a switching request confirmation message to the first base station to inform the first base station of switching the UE to the target cell, wherein the switching request confirmation message carries the wireless resource information distributed by the second base station to the UE.
408. And the first base station sends a switching indication message to the UE, wherein the switching indication message is used for indicating the UE to be switched to the target cell, and the switching indication message comprises the wireless resource information distributed to the UE by the second base station.
409. And the UE receives the switching indication message sent by the first base station, determines the wireless resource allocated to the UE by the second base station according to the wireless resource information, and communicates with the second base station through the wireless resource to switch to the target cell.
The embodiment of the invention provides a method for transmitting measurement information, which can solve the problem that the transmission of the measurement information is not timely in the process of switching the existing UE from a source cell to a target cell, further ensure the transmission rate and the transmission accuracy of signaling and data between the UE and a base station controlling the target cell and ensure the communication quality.
Another embodiment of the present invention provides a method for transmitting measurement information, which is applicable to a handover procedure based on an X2 interface in an LTE system, and as shown in fig. 5, the method includes:
501. the UE receives a measurement control message sent by a base station controlling a source cell (i.e., a cell in which the UE is currently located), measures signal quality of the source cell and signal quality of neighboring cells, and obtains a measurement report.
The measurement report includes measurement results obtained by the UE measuring the source cell and neighboring cells of the source cell (hereinafter referred to as neighboring cells), where the measurement results are used to indicate quality of a channel between the UE and the source cell and quality of a channel between the UE and the neighboring cells of the source cell, and are used for a base station controlling the source cell to determine whether the UE is handed over.
For convenience of description, in the present embodiment, the base station controlling the source cell is taken as the first base station, and the base station controlling the target cell is taken as the second base station.
502. And the UE reports the measurement report to the first base station, wherein the measurement report comprises measurement results of each cell obtained by measuring the source cell and the adjacent cell by the UE.
503. And the first base station judges whether the UE needs to be switched to other cells or not according to the measurement report. If yes, selecting a cell with the best channel quality with the UE as a target cell of the UE, and executing 504; and if not, the first base station continues to provide communication service for the UE.
504. The first base station sends a handover required message (handover required) to an MME (mobility management entity), where the handover required message request message carries measurement information, the measurement information includes a measurement result obtained by the UE measuring the target cell, and the measurement result includes quality of a channel between the UE and the target cell.
Optionally, the handover required message further carries an identifier of the target cell.
Optionally, the first base station may carry the measurement information in a sourcetotargetttransparentcontainer (source-to-target transparent container) message in the handover required message, so that the MME obtains the measurement information from the handover required message after receiving the handover required message.
Specifically, the first base station may carry the measurement information in an RRCContainer (radio resource control container) in the sourcetotargettranspartmentcontainer message, or the first base station may add a MeasResults cell in the sourcetotargettranspartmentcontainer message, and carry the measurement information in the MeasResults cell, so that the second base station obtains the measurement information. For example, the specific content of the MeasResults cell may be the same as or similar to the content of the measresultsnformation element that is generated after the UE completes measurement and meets the 36.331 protocol specification of 3GPP or the measurement result information measresultsnformation element for the target cell, MeasResultEUTRA, and is not limited herein.
505. And the MME sends a handover request message (HandoverRequest) to the second base station, wherein the handover request message comprises measurement information obtained by the UE measuring the target cell.
Optionally, the handover request message further carries an identifier of the target cell, which is used for the second base station to determine the target cell to which the UE needs to be handed over.
Optionally, the MME may carry the measurement information in a sourcetotargetttransparentcontainer message in the handover request, so that the second base station obtains the measurement information from the handover request message after receiving the handover request message.
Specifically, the MME may carry the measurement information in the RRCContainer in the sourcetotargetttransparentcontainer message, or the MME may add a MeasResults cell in the sourcetotargetttransparentcontainer message newly, and carry the measurement information in the MeasResults cell, so that the second base station obtains the measurement information.
For example, the specific content of the MeasResults cell may be the same as or similar to the content of the measresultsnformation element that is generated after the UE completes measurement and meets the 36.331 protocol specification of 3GPP or the measurement result information measresultsnformation element for the target cell, MeasResultEUTRA, and is not limited herein.
506. The second base station receives a switching request message sent by the MME and determines that the UE needs to be switched to the target cell; and acquiring the measurement information from the switching request message, acquiring a measurement result obtained by measuring the target cell by the UE, and determining the quality of a channel between the UE and the target cell according to the measurement result.
507. And the second base station allocates wireless resources for the UE according to the quality of the channel between the UE and the target cell.
For example, the second base station may set an MCS value according to the quality of the channel between the UE and the target cell, and allocate an RB to the UE according to the MCS value, so that the UE communicates with the second base station according to the RB allocated to the UE by the second base station, so that the second base station performs uplink scheduling and/or downlink scheduling on the UE.
It should be noted that, in the LTE system, when performing uplink and downlink scheduling on the UE, it is necessary to set an MCS value according to the communication quality between the UE and the base station, and then allocate an RB to the UE according to the MCS value, thereby completing scheduling of the UE. For example, if the quality of the channel between the UE and the target cell is high, the second base station may set a large MCS value for the UE, allocate fewer RBs to the UE on the premise of ensuring the communication quality, and select a large code rate to implement transmission of signaling and data between the UE and the second base station, so as to ensure the transmission quality and transmission speed of the signaling and data in the communication process.
508. And the second base station sends a switching request confirmation message to an MME, wherein the switching request confirmation message comprises the wireless resource information distributed by the second base station for the UE.
509. After receiving the handover request acknowledgement message, the MME sends a handover command message to the first base station, so as to notify the first base station to handover the UE to the target cell; wherein the handover command message includes radio resource information allocated by the second base station to the user equipment.
510. And the first base station receives the switching request confirmation message and sends a switching indication message to the UE for indicating the UE to be switched to the target cell, wherein the switching indication message comprises the wireless resource information distributed to the UE by the second base station.
511. And the UE receives the switching indication message sent by the first base station, determines the wireless resource allocated to the UE by the second base station according to the wireless resource information, and communicates with the second base station through the wireless resource to switch to the target cell.
The embodiment of the invention provides a method for transmitting measurement information, which can solve the problem that the transmission of the measurement information is not timely in the process of switching the existing UE from a source cell to a target cell, further ensure the transmission rate and the transmission accuracy of signaling and data between the UE and a base station controlling the target cell and ensure the communication quality.
The present invention further provides a device for implementing the method for transmitting measurement information provided in the foregoing embodiment, which is described below by way of example, and for details, reference may also be made to the foregoing method embodiment.
Another embodiment of the present invention provides an apparatus 60, which is capable of implementing the operation of the first base station in the foregoing method embodiment, as shown in fig. 6, where the apparatus 60 includes: a first sending unit 601, configured to send measurement information to a second base station controlling a second cell, where the measurement information includes a measurement result obtained by a ue measuring the second cell; the measurement information is carried in a handover request message sent by the first sending unit 601 to the second base station, or the measurement information is carried in a handover required message sent by the first sending unit 601 to a mobility management entity MME and a handover request message sent by the MME to the second base station after receiving the handover required message; wherein the device 60 controls a first cell, the first cell being a source cell of the ue, and the second cell being a target cell of the ue.
Optionally, as shown in dotted line part in fig. 6, the apparatus 60 further includes a first receiving unit 602, where:
when the measurement information is carried in a handover request message sent by the first sending unit 601 to the second base station, the first receiving unit 602 is configured to receive a handover request acknowledgement message sent by the second base station; wherein, the handover request acknowledgement message carries the radio resource information allocated by the second base station to the user equipment; or, when the measurement information is carried in a handover required message sent by the first sending unit 601 to a mobility management entity MME and a handover request message sent by the MME to the second base station after receiving the handover required message, the first receiving unit 602 is configured to receive a handover command message from the MME, where the handover command message is sent by the MME after receiving a handover request acknowledgement message sent by the second base station; the handover command message includes radio resource information allocated by the second base station to the user equipment, so that the user equipment can communicate with the second base station according to the radio resource information.
Alternatively, the device 60 may be a base station.
The device provided by the embodiment of the invention can send the measurement information to the base station of the control target cell in time in the process of switching the UE from the source cell to the target cell, so that the wireless resource information distributed by the base station of the control target cell to the user terminal can be obtained in time, the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the control target cell can be further ensured, and the communication quality is ensured.
Another embodiment of the present invention further provides an apparatus 70, which is capable of implementing the operation of the second base station in the foregoing method embodiment, as shown in fig. 7, where the apparatus 70 includes: a second receiving unit 701, configured to receive measurement information from a first base station controlling a first cell, where the measurement information includes a measurement result obtained by a user terminal measuring a second cell; the measurement information is carried in a handover request message sent by the first base station to the device, or the measurement information is carried in a handover required message sent by the first base station to a Mobility Management Entity (MME) and a handover request message sent by the MME to the device after receiving the handover required message; wherein the device 70 controls a second cell, the first cell being a source cell of the ue, and the second cell being a target cell of the ue.
Optionally, as shown in dotted line part in fig. 7, the apparatus 70 further includes a second sending unit 702, where: when the measurement information is carried in a handover request message sent by the first base station to the device 70, the second sending unit 702 is configured to send a handover request acknowledgement message to the first base station; wherein, the handover request acknowledgement message carries the radio resource information allocated by the device 70 to the user equipment, so that the user equipment communicates with the device 70 according to the radio resource information; or, when the measurement information is carried in a handover required message sent by the first base station to a mobility management entity MME and a handover request message sent by the MME to the device 70 after receiving the handover required message, the second sending unit 702 is configured to send a handover request acknowledgement message to the MME, and the MME sends a handover command message to the first base station after receiving the handover request acknowledgement message; wherein, the handover command message includes radio resource information allocated by the device 70 to the ue, so that the ue communicates with the device 70 according to the radio resource information.
Alternatively, the device 70 may be a base station.
The device provided by the embodiment of the invention can acquire the measurement result obtained by measuring the target cell by the UE in time in the process of switching the UE from the source cell to the target cell, thereby allocating the wireless resource information to the user terminal in time, ensuring the transmission rate and the transmission accuracy of signaling and data between the UE and the device and ensuring the communication quality.
Another embodiment of the present invention provides an apparatus 80, which is capable of implementing the operation of the MME in the foregoing method embodiment, as shown in fig. 8, the apparatus 80 includes: a third receiving unit 801, configured to receive a handover required message sent by a first base station controlling a first cell, where the handover required message includes measurement information; and a third sending unit 802, configured to send a handover request message to a second base station controlling a second cell, where the handover request message includes the measurement information; the measurement information comprises a measurement result obtained by the user terminal measuring the second cell; the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
Optionally, the third receiving unit 801 is further configured to receive a handover request acknowledgement message sent by the second base station; the third sending unit 802 is further configured to send a handover command message to the first base station, where the handover command message includes radio resource information allocated by the second base station to the ue, so that the ue communicates with the second base station according to the radio resource information.
Optionally, the apparatus 80 may be a mobility management entity MME.
The device provided by the embodiment of the invention can acquire the measurement result obtained by measuring the target cell by the UE from the base station of the control source cell in time and send the measurement result to the base station of the control target cell in the process of switching the UE from the source cell to the target cell, so that the base station of the control target cell can acquire the measurement result in time, the base station of the control target cell can distribute wireless resource information to the user terminal in time, the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the control target cell are ensured, and the communication quality is ensured.
Another embodiment of the present invention further provides a communication system, which can implement the foregoing method embodiment, and as shown in fig. 9, the system includes a first base station 901 controlling a first cell, a second base station 902 controlling a second cell, and a mobility management entity MME903, where the first cell is a source cell of a user terminal, and the second cell is a target cell of the user terminal; wherein:
the first base station 901 is configured to send measurement information to the second base station 902, where the measurement information includes a measurement result obtained by a ue measuring the second cell; the measurement information is carried in a handover request message sent by the first base station 901 to the second base station 902, or the measurement information is carried in a handover required message sent by the first base station 901 to a mobility management entity MME903 and in a handover request message sent by the MME903 to the second base station 902 after receiving the handover required message;
the second base station 902 is configured to receive measurement information from the first base station 901, where the measurement information includes a measurement result obtained by a user terminal measuring a second cell; the measurement information is carried in a handover request message sent by the first base station 901 to the second base station 902, or the measurement information is carried in a handover required message sent by the first base station 901 to a mobility management entity MME903 and in a handover request message sent by the MME903 to the second base station 902 after receiving the handover required message;
the MME903 is configured to receive a handover required message sent by the first base station 901, where the handover required message includes measurement information; and sending a handover request message to the second base station 902, the handover request message comprising the measurement information.
For example, the above method embodiment and embodiments of the device 60, the device 70, and the device 80 may be referred to for the communication process and details between the first base station 901, the second base station 902, and the MME903, and details are not described herein again.
The communication system provided by the embodiment of the invention can solve the problem that the transmission of the measurement information is not timely in the process of switching the existing UE from the source cell to the target cell, further can ensure the transmission rate and the transmission accuracy of signaling and data between the UE and the base station of the target cell, and ensures the communication quality.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be substantially implemented or a part of the technical solutions contributing to the prior art may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (16)
1. A method for transmitting measurement information, comprising:
a first base station controlling a first cell sends measurement information to a second base station controlling a second cell, wherein the measurement information comprises a measurement result obtained by a user terminal measuring the second cell, and the measurement information is carried in a switching request message sent by the first base station to the second base station, so that the second base station obtains the measurement result obtained by the user terminal measuring the second cell, and allocates wireless resources for the user terminal according to the obtained measurement result;
the first base station receives a handover request confirmation message sent by the second base station, wherein the handover request confirmation message carries the radio resource information allocated by the second base station to the user terminal;
the first base station sends a switching indication message to the user terminal, wherein the switching indication message comprises the wireless resource information allocated to the user terminal by the second base station, so that the user terminal communicates with the second base station through the wireless resource information to be switched to the second cell;
the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
2. The method of claim 1, wherein the measurement information is included in a measurement result information element in the handover request message.
3. The method according to claim 1 or 2, wherein the measurement result comprises a quality of a channel between the user terminal and the second cell.
4. A method for transmitting measurement information, comprising:
a second base station controlling a second cell receives measurement information from a first base station controlling a first cell, wherein the measurement information comprises a measurement result obtained by a user terminal measuring the second cell, and the measurement information is carried in a switching request message sent by the first base station to the second base station;
the second base station sends a handover request confirmation message to the first base station, wherein the handover request confirmation message carries radio resource information allocated by the second base station to the user terminal according to the measurement result, so that the first base station sends a handover indication message including the radio resource information to the user terminal, and the user terminal communicates with the second base station according to the radio resource information to be handed over to the second cell;
the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
5. The method of claim 4, wherein the measurement information is included in a measurement result information element in the handover request message when the measurement information is carried in the handover request message sent by the first base station to the second base station.
6. The method according to claim 4 or 5, wherein the measurement result comprises the quality of the channel between the user terminal and the second cell.
7. The method of claim 4, further comprising:
and the second base station carries out uplink scheduling and/or downlink scheduling on the user terminal according to the measurement information.
8. An apparatus for transmitting measurement information, the apparatus comprising:
a first sending unit, configured to send measurement information to a second base station controlling a second cell, where the measurement information includes a measurement result obtained by a ue measuring the second cell, and the measurement information is carried in a handover request message sent by the first sending unit to the second base station, so that the second base station obtains the measurement result obtained by the ue measuring the second cell, and allocates a radio resource to the ue according to the obtained measurement result; the apparatus further comprises:
a first receiving unit, configured to receive a handover request acknowledgement message sent by the second base station; wherein, the handover request acknowledgement message carries the radio resource information allocated by the second base station to the user equipment;
the first sending unit is further configured to send a handover indication message to the ue, where the handover indication message includes the radio resource information allocated by the second base station to the ue, so that the ue communicates with the second base station through the radio resource information to handover to the second cell;
the device controls a first cell, where the first cell is a source cell of the user terminal, and the second cell is a target cell of the user terminal.
9. The apparatus of claim 8, wherein the measurement information is included in a measurement result information element in the handover request message.
10. The apparatus according to claim 8 or 9, wherein the measurement result comprises a quality of a channel between the user terminal and the second cell.
11. The apparatus of claim 10, wherein the apparatus is a base station.
12. An apparatus for transmitting measurement information, the apparatus comprising:
a second receiving unit, configured to receive measurement information from a first base station controlling a first cell, where the measurement information includes a measurement result obtained by a user terminal measuring a second cell, and the measurement information is carried in a handover request message sent by the first base station to the device; the apparatus further comprises:
a second sending unit, configured to send a handover request acknowledgement message to the first base station; the handover request confirmation message carries radio resource information allocated by the equipment to the user terminal according to the measurement result, so that the user terminal can communicate with the equipment according to the radio resource information;
the device controls a second cell, where the first cell is a source cell of the ue and the second cell is a target cell of the ue.
13. The apparatus of claim 12, wherein the measurement information is included in a measurement result information element in the handover request message.
14. The apparatus according to claim 12 or 13, wherein the measurement result comprises a quality of a channel between the user terminal and the second cell.
15. The apparatus according to claim 12, wherein the apparatus performs uplink scheduling and/or downlink scheduling for the ue according to the measurement information.
16. The apparatus of claim 12, wherein the apparatus is a base station.
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| CN101207905A (en) * | 2006-12-21 | 2008-06-25 | 中兴通讯股份有限公司 | Method and apparatus for switch optimization |
| CN101374325A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and system for implementing district switch by mobile terminal |
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| CN100441021C (en) * | 2003-10-16 | 2008-12-03 | 华为技术有限公司 | Mobile Station Cell Handover Method |
| CN101646212B (en) * | 2008-08-06 | 2012-01-11 | 电信科学技术研究院 | Cell switching control method, device and communication system |
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| CN101207905A (en) * | 2006-12-21 | 2008-06-25 | 中兴通讯股份有限公司 | Method and apparatus for switch optimization |
| CN101374325A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and system for implementing district switch by mobile terminal |
| CN101534532A (en) * | 2008-03-12 | 2009-09-16 | 中兴通讯股份有限公司 | Switch-based bearing establishing method and system thereof |
| CN102238680A (en) * | 2010-05-07 | 2011-11-09 | 华为技术有限公司 | Heterogeneous network switching control method, signal transmission method, equipment and communication system |
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