CN107959948B - Compression processing method, base station and system - Google Patents
Compression processing method, base station and system Download PDFInfo
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- CN107959948B CN107959948B CN201610900180.8A CN201610900180A CN107959948B CN 107959948 B CN107959948 B CN 107959948B CN 201610900180 A CN201610900180 A CN 201610900180A CN 107959948 B CN107959948 B CN 107959948B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The invention discloses a compression processing method, a base station and a system, wherein the method comprises the following steps: determining a target base station for switching operation of terminal equipment, and acquiring capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing; and if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process of executing switching by the terminal equipment.
Description
Technical Field
The present invention relates to signal transmission technologies in the field of communications, and in particular, to a compression processing method, a base station, and a system.
Background
When a User Equipment (UE) performs data interaction with a base station, Uplink Data Compression (UDC) may be used to process redundant information (information repeatedly transmitted) in data transmission. The above UDC mainly refers to: and storing the redundant information in the base station side through an uplink compression algorithm, so that the UE does not need to transmit the redundant information any more and only transmits the non-redundant information and the relative position relation between the non-redundant information and the base station side cache data. However, the above scheme does not take mobility into account in a mobile communication scenario.
Disclosure of Invention
The present invention is directed to a compression processing method, a base station and a system, and aims to solve the above problems in the prior art.
In order to achieve the above object, the present invention provides a compression processing method, including:
determining a target base station for switching operation of terminal equipment, and acquiring capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process of executing switching by the terminal equipment
The invention provides a compression processing method, which is applied to a target base station and comprises the following steps:
after determining a target base station used as a terminal device for switching operation, providing capability information for a source base station corresponding to the terminal device; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment;
and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
The invention provides a compression processing method, which is applied to a target base station and comprises the following steps:
determining a target base station serving as a terminal device for switching operation, and acquiring at least part of redundant information in redundant information corresponding to the terminal device, which is transmitted by a source base station and stored by the source base station, in the process of executing switching by the terminal device;
and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
The present invention provides a base station, comprising:
the information acquisition unit is used for determining a target base station for switching operation of the terminal equipment and acquiring the capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
and the information sending unit is used for sending at least part of redundant information stored by the terminal equipment to the target base station in the process of executing switching by the terminal equipment if the capability information of the target base station indicates that the target base station supports uplink compression.
The present invention provides a base station, comprising:
the information sending unit is used for providing capability information for a source base station corresponding to the terminal equipment after determining a target base station which is used as the terminal equipment for switching operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
an information receiving unit, configured to, if the capability information of the target base station indicates that the target base station supports uplink compression, acquire at least part of redundant information in redundant information corresponding to the terminal device and stored by the source base station, where the redundant information is sent from the source base station in a process in which the terminal device performs handover;
and the communication unit is used for performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation.
The present invention provides a base station, comprising:
an information receiving unit, configured to determine a target base station serving as a terminal device for performing a handover operation, and acquire at least part of redundant information in redundant information corresponding to the terminal device, which is sent by the source base station and stored in the source base station, in a handover process of the terminal device;
and the communication unit is used for performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation.
The present invention provides a compression processing system, the system comprising:
the source base station is used for determining a target base station for switching operation of the terminal equipment and acquiring the capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process that the terminal equipment executes switching;
the target base station is used for providing capability information for a source base station corresponding to the terminal equipment after determining the target base station which is used as the terminal equipment for switching operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment; and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
The present invention provides a compression processing system, the system comprising:
the target base station is used for determining the target base station which is used as the terminal equipment for switching operation, and acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored in the source base station and corresponds to the terminal equipment in the process of switching execution of the terminal equipment; the communication unit is used for performing interaction processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation;
and the source base station is used for sending at least part of redundant information stored by the source base station and corresponding to the terminal equipment to the target base station.
According to the compression processing method, the base station and the system, when the terminal equipment performs switching operation, at least part of redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly adopt the redundant information to perform communication interaction with the terminal equipment, and the target base station can interact with the terminal equipment under the scene of supporting uplink compression. Therefore, the processing of uplink compression is ensured to be applicable to the switching operation scene, and the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured.
Drawings
FIG. 1 is a first flowchart of a compression processing method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a second compression processing method according to an embodiment of the present invention;
FIG. 3 is a third schematic flow chart of a compression processing method according to an embodiment of the present invention;
FIG. 4 is a fourth schematic flowchart of a compression processing method according to an embodiment of the present invention;
FIG. 5 is a first schematic diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a base station structure according to an embodiment of the present invention;
fig. 7 is a third schematic structural diagram of a base station according to an embodiment of the present invention;
FIG. 8 is a first schematic structural diagram of a system according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a system configuration structure according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
The first embodiment,
An embodiment of the present invention provides a compression processing method, which is applied to a source base station, and as shown in fig. 1, the method includes:
step 101: determining a target base station for switching operation of terminal equipment, and acquiring capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
step 102: and if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process of executing switching by the terminal equipment.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
When the step 101 is executed in this embodiment, it is further necessary to determine a working mode corresponding to the switching operation, which is specifically as follows: the determining a target base station to which the terminal device performs handover, and acquiring capability information of the target base station include:
and judging a working mode corresponding to the switching operation, if the working mode of the switching operation is a confirmation mode, acquiring the capability information of the target base station, and sending the capability information to the terminal equipment.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
In the following, how to acquire the capability of the target base station is described, and this embodiment focuses on a processing manner of performing capability acquisition of the target base station in cooperation with the source base station side:
the first treatment method,
Directly acquiring capability information sent by a target base station; here, the direct acquisition may signal, for the target base station, whether the source base station supports uplink compression. In addition, the directly acquired time may be acquired and stored by the source base station when performing information interaction with other base stations, that is, the acquired time may not be related to the current handover operation.
The second treatment method,
Sending a capability inquiry signaling to the target base station, and receiving feedback information of the target base station aiming at the capability inquiry signaling; and acquiring the capability information of the target base station from the feedback information.
On the basis of the foregoing scenario, the sending of at least part of redundant information, which is stored by the target base station and corresponds to the terminal device, to the target base station according to this embodiment may include the following two processing scenarios:
scene one,
Selecting part of redundant information with the use frequency higher than a preset threshold value based on the use frequency of the stored redundant information; and sending the selected part of redundant information and the sequence number of the protocol data unit corresponding to the part of redundant information to the target base station.
The use frequency represents the calling times of the redundant information in the preset time length, or can be understood as the ratio of the calling times of the redundant information to the preset time length.
The preset threshold may be set according to an actual situation, for example, the preset threshold may be set to be used for 3 times within a preset time period, and this embodiment is not exhaustive.
Scene two,
And sending all the redundant information corresponding to the terminal equipment stored by the target base station and the serial number of the protocol data unit corresponding to each redundant information to the target base station.
In such a scenario, it is not necessary to count the frequency and the number of times of use, and all the redundant information is directly packed and transmitted.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example II,
Correspondingly to the embodiment, the method for performing compression processing in the handover process at the target base station side, as shown in fig. 2, includes:
step 201: after determining a target base station used as a terminal device for switching operation, providing capability information for a source base station corresponding to the terminal device; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
step 202: if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment;
step 203: and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
In addition, it is necessary to determine a working mode corresponding to the switching operation, which is specifically as follows: and if the capability information of the target base station indicates that the target base station does not support uplink compression or if the working mode corresponding to the switching operation is not the confirmed mode, directly performing uplink and downlink information interaction with the terminal equipment.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
In the following, how to acquire the capability of the target base station is described, and this embodiment focuses on a processing manner of acquiring the capability of the target base station:
the first treatment method,
Directly sending the capability information to the source base station; here, the direct acquisition may signal, for the target base station, whether the source base station supports uplink compression. In addition, the directly acquired time may be acquired and stored by the source base station when performing information interaction with other base stations, that is, the acquired time may not be related to the current handover operation.
The second treatment method,
Receiving a capability inquiry signaling sent by a source base station, and sending feedback information aiming at the capability inquiry signaling to the source base station; the feedback information at least carries the capability information of the target base station.
The following is a general processing description with reference to fig. 3 and the processing manners of the source base station and the target base station provided in the first and second embodiments:
the method comprises the following steps: determining whether the switching is an AM mode or an UM mode; if the mode is the AM mode, continuing to execute the step two; if the mode is UM, because PDCP PDU SN will reset in the switching process, execute step four.
Step two: and acquiring the uplink compression capability of the target base station. The method specifically comprises the following steps: and the source base station and the target base station inform User Equipment (UE) whether to support uplink compression through signaling interaction.
The method comprises the following processing schemes:
the implementation mode is as follows: the source base station inquires whether the target base station supports uplink compression or not through signaling, and the target base station replies whether the target base station supports uplink compression or not through the signaling;
the implementation mode two is as follows: the target base station informs the source base station whether the source base station supports the uplink compression or not through signaling.
Further, if the target base station supports uplink compression, step three is executed. And if the target base station does not support the uplink compression, executing the step four.
Step three: and in the switching process, the transmission of the buffer data and the sequence number of the corresponding PDCP PDU is carried out between the source base station and the target base station.
There are 2 implementations here:
the first implementation scheme is as follows: the source base station extracts the redundant information which is frequently used according to the use frequency of the cache data and transmits the redundant information to the target base station through an X2 interface
The second implementation scheme is as follows: and the source base station transmits all the cached redundant information to the target base station.
Step four: if the UM mode at handover or the target base station does not support uplink compression, the UE performs normal transmission (non-compression mode). And if the AM mode is switched and the target base station supports uplink compression, starting uplink compression transmission between the UE and the target base station.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example III,
Different from the foregoing embodiments, in that the present embodiment mainly aims at the interaction between the target base station and the terminal device, and completes the compression processing method in the handover process, as shown in fig. 4, the method includes:
step 401: determining a target base station serving as a terminal device for switching operation, and acquiring at least part of redundant information in redundant information corresponding to the terminal device, which is transmitted by a source base station and stored by the source base station, in the process of executing switching by the terminal device;
step 402: and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
The following two processing manners how the target base station interacts with the terminal device to determine the capability information:
the first mode,
Before acquiring at least part of redundant information corresponding to the terminal device and stored by the source base station, the method further includes:
acquiring compression capacity information of the terminal equipment through a source base station corresponding to the terminal equipment; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, before the interactive processing of the compressed uplink information based on the at least part of redundant information and the terminal device, the method further includes:
and when the compression capability information of the terminal equipment represents that the terminal equipment supports uplink compression processing and the target base station supports the uplink compression processing, sending an instruction for controlling the start of uplink compression to the terminal equipment.
That is, in the switching process, the source base station informs the target base station that the current UE supports uplink compression; and after the switching is finished, the target base station indicates whether the UE starts the uplink compression or not through signaling.
The second mode,
The interactive processing of the compressed uplink information based on the at least part of redundant information and the terminal device includes:
acquiring compression capacity information sent by the terminal equipment, wherein the compression capacity information at least comprises whether the terminal equipment supports uplink compression processing or not;
and when the compression capability information represents that the terminal equipment supports uplink compression processing and the target base station indicates the uplink compression processing, performing interactive processing on compressed uplink information with the terminal equipment based on at least part of redundant information.
That is, the UE reports its uplink compression capability to the target base station, and the target base station replies a signaling indicating whether the UE starts uplink compression.
In addition, it is necessary to determine a working mode corresponding to the switching operation, which is specifically as follows: and if the capability information of the target base station indicates that the target base station does not support uplink compression or if the working mode corresponding to the switching operation is not the confirmed mode, directly performing uplink and downlink information interaction with the terminal equipment.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
Acquiring at least part of redundant information in the redundant information corresponding to the terminal device, which is sent by the source base station, and includes:
receiving at least partial redundant information sent by the source base station and a sequence number of a protocol data unit corresponding to each redundant information.
Here, it can be understood that whether to acquire part of redundant information or all of the redundant information may be determined by the source base station, and the determination method is the same as that in the first embodiment, and is not described here again.
The method comprises the following steps: determining whether a handover is AM mode or UM mode
If the mode is AM mode, the step two is continuously executed.
If the mode is UM, because PDCP PDU SN will reset in the switching process, execute step four.
Step two: and acquiring the uplink compression capability of the target base station.
Whether the target base station and the terminal support uplink compression or not through signaling interaction; the implementation schemes are various, and can be but are not limited to the following:
the first implementation scheme is as follows: the UE reports the uplink compression capability of the UE to a target base station, and the target base station replies a signaling to indicate whether the UE starts uplink compression or not;
the second implementation scheme is as follows: in the switching process, the source base station informs the target base station that the current UE supports uplink compression, and after the switching is finished, the target base station indicates whether the UE starts the uplink compression or not through signaling.
Since the signaling interaction between the target base station and the UE occurs after the handover is completed, the scheme potentially considers that, in the handover execution process, step three is executed regardless of whether the target base station supports uplink compression or not.
Step three: and in the switching process, the transmission of the buffer data and the sequence number of the corresponding PDCP PDU is carried out between the source base station and the target base station.
There are 2 implementation schemes:
the first implementation scheme is as follows: the source base station extracts the redundant information which is frequently used according to the use frequency of the cache data and transmits the redundant information to the target base station through an X2 interface
The second implementation scheme is as follows: and the source base station transmits all the cached redundant information to the target base station.
Step four: if the UM mode is switched or the target base station does not support the uplink compression, the UE performs the normal transmission. And if the AM mode is switched and the target base station supports uplink compression, starting uplink compression transmission between the UE and the target base station.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example four,
An embodiment of the present invention provides a base station, as shown in fig. 5, including:
an information obtaining unit 51, configured to determine a target base station for performing a handover operation by a terminal device, and obtain capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
an information sending unit 52, configured to send at least part of redundant information, which is stored by the terminal device and corresponds to the terminal device, to the target base station in a process in which the terminal device performs handover if the capability information of the target base station indicates that the target base station supports uplink compression.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
The information obtaining unit 51, configured to determine a target base station to which the terminal device performs handover, and obtain capability information of the target base station, includes:
and judging a working mode corresponding to the switching operation, if the working mode of the switching operation is a confirmation mode, acquiring the capability information of the target base station, and sending the capability information to the terminal equipment.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
In the following, how to acquire the capability of the target base station is described, and this embodiment focuses on a processing manner of performing capability acquisition of the target base station in cooperation with the source base station side:
the first treatment method,
An information acquiring unit 51, configured to directly acquire capability information sent by a target base station; here, the direct acquisition may signal, for the target base station, whether the source base station supports uplink compression. In addition, the directly acquired time may be acquired and stored by the source base station when performing information interaction with other base stations, that is, the acquired time may not be related to the current handover operation.
The second treatment method,
The information sending unit is used for sending a capability inquiry signaling to the target base station;
correspondingly, the information obtaining unit is configured to receive feedback information of the target base station for the capability query signaling; and acquiring the capability information of the target base station from the feedback information.
On the basis of the foregoing scenario, the sending of at least part of redundant information, which is stored by the target base station and corresponds to the terminal device, to the target base station according to this embodiment may include the following two processing scenarios:
scene one,
Selecting part of redundant information with the use frequency higher than a preset threshold value based on the use frequency of the stored redundant information; and sending the selected part of redundant information and the sequence number of the protocol data unit corresponding to the part of redundant information to the target base station.
The use frequency represents the calling times of the redundant information in the preset time length, or can be understood as the ratio of the calling times of the redundant information to the preset time length.
The preset threshold may be set according to an actual situation, for example, the preset threshold may be set to be used for 3 times within a preset time period, and this embodiment is not exhaustive.
Scene two,
And sending all the redundant information corresponding to the terminal equipment stored by the target base station and the serial number of the protocol data unit corresponding to each redundant information to the target base station.
In such a scenario, it is not necessary to count the frequency and the number of times of use, and all the redundant information is directly packed and transmitted.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example V,
An embodiment of the present invention provides a base station, as shown in fig. 6, including:
an information sending unit 61, configured to provide capability information for a source base station corresponding to a terminal device after determining a target base station serving as the terminal device for performing a handover operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
an information receiving unit 62, configured to, if the capability information of the target base station indicates that the target base station supports uplink compression, acquire at least part of redundant information, which is sent by the source base station and stored in the redundant information corresponding to the terminal device, in a process that the terminal device performs handover;
and a communication unit 63, configured to perform, after the terminal device completes the switching operation, interactive processing on compressed uplink information with the terminal device based on the at least part of redundant information.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
In addition, it is necessary to determine a working mode corresponding to the switching operation, which is specifically as follows: the communication unit is configured to directly perform uplink and downlink information interaction with the terminal device if the capability information of the target base station indicates that the target base station does not support uplink compression or if a working mode corresponding to a switching operation is an unacknowledged mode.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
In the following, how to acquire the capability of the target base station is described, and this embodiment focuses on a processing manner of acquiring the capability of the target base station:
the first treatment method,
The information sending unit is used for directly sending the capability information to the source base station; here, the direct acquisition may signal, for the target base station, whether the source base station supports uplink compression. In addition, the directly acquired time may be acquired and stored by the source base station when performing information interaction with other base stations, that is, the acquired time may not be related to the current handover operation.
The second treatment method,
The information sending unit is used for receiving a capability inquiry signaling sent by a source base station and sending feedback information aiming at the capability inquiry signaling to the source base station; the feedback information at least carries the capability information of the target base station.
The following is a general processing description with reference to fig. 3 and the processing manners of the source base station and the target base station provided in the first and second embodiments:
the method comprises the following steps: determining whether the switching is an AM mode or an UM mode; if the mode is the AM mode, continuing to execute the step two; if the mode is UM, because PDCP PDU SN will reset in the switching process, execute step four.
Step two: and acquiring the uplink compression capability of the target base station. The method specifically comprises the following steps: and the source base station and the target base station inform User Equipment (UE) whether to support uplink compression through signaling interaction.
The method comprises the following processing schemes:
the implementation mode is as follows: the source base station inquires whether the target base station supports uplink compression or not through signaling, and the target base station replies whether the target base station supports uplink compression or not through the signaling;
the implementation mode two is as follows: the target base station informs the source base station whether the source base station supports the uplink compression or not through signaling.
Further, if the target base station supports uplink compression, step three is executed. And if the target base station does not support the uplink compression, executing the step four.
Step three: and in the switching process, the transmission of the buffer data and the sequence number of the corresponding PDCP PDU is carried out between the source base station and the target base station.
There are 2 implementations here:
the first implementation scheme is as follows: the source base station extracts the redundant information which is frequently used according to the use frequency of the cache data and transmits the redundant information to the target base station through an X2 interface
The second implementation scheme is as follows: and the source base station transmits all the cached redundant information to the target base station.
Step four: if the UM mode at handover or the target base station does not support uplink compression, the UE performs normal transmission (non-compression mode). And if the AM mode is switched and the target base station supports uplink compression, starting uplink compression transmission between the UE and the target base station.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example six,
Unlike the previous embodiments, the present embodiment provides a base station, as shown in fig. 7, including:
an information receiving unit 71, configured to determine a target base station serving as a terminal device for performing a handover operation, and acquire at least part of redundant information in redundant information corresponding to the terminal device and sent by the source base station in a handover process of the terminal device;
a communication unit 72, configured to perform, after the terminal device completes the switching operation, interactive processing on the compressed uplink information with the terminal device based on the at least part of redundant information.
It should be understood that, when the terminal device performs handover, the source base station and the terminal device are first required to cooperate with each other to select the target base station.
The following two processing manners how the target base station interacts with the terminal device to determine the capability information:
the first mode,
Before acquiring at least part of redundant information corresponding to the terminal device and stored by the source base station, the method further includes:
the information receiving unit is configured to obtain compression capability information of the terminal device through a source base station corresponding to the terminal device; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, before the interactive processing of the compressed uplink information based on the at least part of redundant information and the terminal device, the communication unit is configured to send an instruction for controlling to start uplink compression to the terminal device when the compression capability information of the terminal device indicates that the terminal device supports uplink compression and the target base station supports uplink compression.
That is, in the switching process, the source base station informs the target base station that the current UE supports uplink compression; and after the switching is finished, the target base station indicates whether the UE starts the uplink compression or not through signaling.
The second mode,
The interactive processing of the compressed uplink information based on the at least part of redundant information and the terminal device includes:
the information receiving unit is configured to acquire compression capability information sent by the terminal device, where the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the communication unit is configured to perform, when the compression capability information indicates that the terminal device supports uplink compression processing and the target base station indicates uplink compression processing, interactive processing of uplink information compressed with the terminal device based on the at least part of redundant information.
That is, the UE reports its uplink compression capability to the target base station, and the target base station replies a signaling indicating whether the UE starts uplink compression.
In addition, it is necessary to determine a working mode corresponding to the switching operation, which is specifically as follows: and if the capability information of the target base station indicates that the target base station does not support uplink compression or if the working mode corresponding to the switching operation is not the confirmed mode, directly performing uplink and downlink information interaction with the terminal equipment.
Correspondingly, if the working mode of the switching operation is the non-confirmation mode, the interaction processing between the terminal equipment and the source base station and between the terminal equipment and the target base station is directly carried out in a normal interaction mode.
Wherein, the confirmation mode is AM; in Unacknowledged Mode (UM), the PDCP PDU SN is reset during handover, so the method provided in this embodiment is not required to be adopted, and the processing method provided in this embodiment is particularly suitable for the workflow in acknowledged mode.
Acquiring at least part of redundant information in the redundant information corresponding to the terminal device, which is sent by the source base station, and includes:
receiving at least partial redundant information sent by the source base station and a sequence number of a protocol data unit corresponding to each redundant information.
Here, it can be understood that whether to acquire part of redundant information or all of the redundant information may be determined by the source base station, and the determination method is the same as that in the first embodiment, and is not described here again.
By adopting the above scheme, in the embodiment, when the terminal device performs the switching operation, at least part of the redundant information stored in the source base station can be sent to the target base station, so that the target base station can directly perform communication interaction with the terminal device by using the redundant information, and the target base station can perform interaction with the terminal device in a scenario supporting uplink compression. Therefore, the efficiency of switching operation of the terminal equipment in the mobile communication process is ensured, and the processing of uplink compression is ensured to be applicable to the switching operation scene.
Example seven,
The present embodiment provides a compression processing system, as shown in fig. 8, including:
the source base station 81 is configured to determine a target base station for performing a handover operation by a terminal device, and acquire capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process that the terminal equipment executes switching;
the target base station 82 is configured to provide capability information for a source base station corresponding to a terminal device after determining a target base station that is used as the terminal device to perform handover operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment; and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
The target base station in this embodiment is the same as that in the fifth embodiment, and is not described again here; the source base station is the same as the fourth embodiment, and details are not repeated.
Example eight,
The present embodiment provides a compression processing system, as shown in fig. 9, including:
the target base station 91 is configured to determine a target base station serving as a terminal device for performing a handover operation, and acquire at least part of redundant information in redundant information corresponding to the terminal device, which is sent by the source base station and stored in the source base station, in a process of performing the handover by the terminal device; the communication unit is used for performing interaction processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation;
and the source base station 92 is configured to send at least part of redundant information corresponding to the terminal device, which is stored by the source base station, to the target base station.
The source base station 92 is configured to send compression capability information of the terminal device to a target base station; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the target base station 92 is configured to send an instruction for controlling to start uplink compression to the terminal device when the compression capability information of the terminal device indicates that the terminal device supports uplink compression processing and the target base station supports uplink compression processing.
The system further comprises:
the terminal device 93 is configured to send compression capability information to a target base station after a handover operation is completed, where the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the target base station 91 is configured to perform, when the compression capability information indicates that the terminal device supports uplink compression processing and the target base station indicates uplink compression processing, interactive processing of uplink information compressed with the terminal device based on the at least part of redundant information.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (27)
1. A compression processing method applied to a source base station is characterized by comprising the following steps:
determining a target base station for switching operation of terminal equipment, and acquiring capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process that the terminal equipment executes switching; the redundant information is redundant information related to uplink compression.
2. The method of claim 1, wherein the determining a target base station to which the terminal device performs handover, and acquiring capability information of the target base station comprises:
and judging a working mode corresponding to the switching operation, if the working mode of the switching operation is a confirmation mode, acquiring the capability information of the target base station, and sending the capability information to the terminal equipment.
3. The method of claim 1, wherein the obtaining the capability information of the target base station comprises:
sending a capability inquiry signaling to the target base station, and receiving feedback information of the target base station aiming at the capability inquiry signaling;
and acquiring the capability information of the target base station from the feedback information.
4. The method of claim 1, wherein sending at least part of redundant information corresponding to the terminal device, which is stored by the target base station, to the target base station comprises:
selecting part of redundant information with the use frequency higher than a preset threshold value based on the use frequency of the stored redundant information;
and sending the selected part of redundant information and the sequence number of the protocol data unit corresponding to the part of redundant information to the target base station.
5. The method of claim 1, wherein sending at least part of redundant information corresponding to the terminal device, which is stored by the target base station, to the target base station comprises:
and sending all the redundant information corresponding to the terminal equipment stored by the target base station and the serial number of the protocol data unit corresponding to each redundant information to the target base station.
6. A compression processing method applied to a target base station is characterized by comprising the following steps:
after determining a target base station used as a terminal device for switching operation, providing capability information for a source base station corresponding to the terminal device; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment;
and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
7. The method according to claim 6, wherein the providing capability information for the source base station corresponding to the terminal device comprises:
receiving a capability inquiry signaling sent by a source base station, and sending feedback information aiming at the capability inquiry signaling to the source base station; the feedback information at least carries the capability information of the target base station.
8. The method of claim 6, wherein if the capability information of the target base station indicates that the target base station supports uplink compression, the method further comprises:
and if the capability information of the target base station indicates that the target base station does not support uplink compression or if the working mode corresponding to the switching operation is not the confirmed mode, directly performing uplink and downlink information interaction with the terminal equipment.
9. A compression processing method applied to a target base station is characterized by comprising the following steps:
determining a target base station serving as a terminal device for switching operation, and acquiring at least part of redundant information in redundant information corresponding to the terminal device, which is transmitted by a source base station and stored by the source base station, in the process of executing switching by the terminal device; the redundant information is redundant information related to uplink compression;
and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
10. The method according to claim 9, wherein before obtaining at least part of redundant information corresponding to the terminal device and stored by the source base station, the method further comprises:
acquiring compression capacity information of the terminal equipment through a source base station corresponding to the terminal equipment; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, before the interactive processing of the compressed uplink information based on the at least part of redundant information and the terminal device, the method further includes:
and when the compression capability information of the terminal equipment represents that the terminal equipment supports uplink compression processing and the target base station supports the uplink compression processing, sending an instruction for controlling the start of uplink compression to the terminal equipment.
11. The method according to claim 9, wherein the interactive processing of the uplink information compressed by the terminal device based on the at least part of redundant information comprises:
acquiring compression capacity information sent by the terminal equipment, wherein the compression capacity information at least comprises whether the terminal equipment supports uplink compression processing or not;
and when the compression capability information represents that the terminal equipment supports uplink compression processing and the target base station indicates the uplink compression processing, performing interactive processing on compressed uplink information with the terminal equipment based on at least part of redundant information.
12. The method of claim 9, wherein obtaining at least part of redundant information corresponding to the terminal device and stored in the redundant information sent by the source base station comprises:
receiving at least partial redundant information sent by the source base station and a sequence number of a protocol data unit corresponding to each redundant information.
13. A base station, comprising:
the information acquisition unit is used for determining a target base station for switching operation of the terminal equipment and acquiring the capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
an information sending unit, configured to send at least part of redundant information, which is stored by the terminal device and corresponds to the terminal device, to the target base station in a process in which the terminal device performs handover if the capability information of the target base station indicates that the target base station supports uplink compression; the redundant information is redundant information after uplink compression processing.
14. The base station according to claim 13, wherein the information obtaining unit is configured to determine a working mode corresponding to a handover operation, and if the working mode of the handover operation is an acknowledgement mode, obtain the capability information of the target base station, and send the capability information to the terminal device.
15. The base station of claim 13,
the information sending unit is used for sending a capability inquiry signaling to the target base station;
correspondingly, the information obtaining unit is configured to receive feedback information of the target base station for the capability query signaling; and acquiring the capability information of the target base station from the feedback information.
16. The base station of claim 13, wherein the information sending unit is configured to select, based on a usage frequency of the stored redundant information, a part of the redundant information whose usage frequency is higher than a preset threshold; sending the selected part of redundant information and the serial number of the protocol data unit corresponding to the part of redundant information to the target base station;
or, the information sending unit is configured to send all redundant information corresponding to the terminal device that is stored by the information sending unit and a sequence number of a protocol data unit corresponding to each piece of redundant information to the target base station.
17. A base station, comprising:
the information sending unit is used for providing capability information for a source base station corresponding to the terminal equipment after determining a target base station which is used as the terminal equipment for switching operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing;
an information receiving unit, configured to, if the capability information of the target base station indicates that the target base station supports uplink compression, acquire at least part of redundant information in redundant information corresponding to the terminal device and stored by the source base station, where the redundant information is sent from the source base station in a process in which the terminal device performs handover; the redundant information is redundant information after uplink compression processing;
and the communication unit is used for performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation.
18. The base station of claim 17, wherein the information sending unit is configured to receive a capability query signaling sent by a source base station, and send feedback information for the capability query signaling to the source base station; the feedback information at least carries the capability information of the target base station.
19. The base station of claim 17, wherein the communication unit is configured to directly perform uplink and downlink information interaction with the terminal device if the capability information of the target base station indicates that the target base station does not support uplink compression or if a working mode corresponding to a handover operation is not an acknowledged mode.
20. A base station, comprising:
an information receiving unit, configured to determine a target base station serving as a terminal device for performing a handover operation, and acquire at least part of redundant information in redundant information corresponding to the terminal device, which is sent by a source base station and stored in the source base station, in a handover process of the terminal device; the redundant information is redundant information after uplink compression processing;
and the communication unit is used for performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation.
21. The base station of claim 20, wherein the information receiving unit is configured to obtain compression capability information of the terminal device through a source base station corresponding to the terminal device; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the communication unit is configured to send an instruction for controlling to start uplink compression to the terminal device when the compression capability information of the terminal device indicates that the terminal device supports uplink compression processing and the target base station supports uplink compression processing.
22. The base station according to claim 20, wherein the information receiving unit is configured to obtain compression capability information sent by the terminal device, where the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the communication unit is configured to perform, when the compression capability information indicates that the terminal device supports uplink compression processing and the target base station indicates uplink compression processing, interactive processing of uplink information compressed with the terminal device based on the at least part of redundant information.
23. The base station of claim 20, wherein the information receiving unit is configured to receive at least part of redundant information sent by the source base station and a sequence number of a protocol data unit corresponding to each of the redundant information.
24. A compression processing system, the system comprising:
the source base station is used for determining a target base station for switching operation of the terminal equipment and acquiring the capability information of the target base station; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, at least part of redundant information in the redundant information corresponding to the terminal equipment stored by the terminal equipment is sent to the target base station in the process that the terminal equipment executes switching; the redundant information is redundant information after uplink compression processing;
the target base station is used for providing capability information for a source base station corresponding to the terminal equipment after determining the target base station which is used as the terminal equipment for switching operation; wherein, the capability information at least includes whether the target base station supports uplink compression processing; if the capability information of the target base station represents that the target base station supports uplink compression, acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored and corresponds to the terminal equipment in the process of executing switching by the terminal equipment; and after the terminal equipment completes the switching operation, performing interactive processing on compressed uplink information with the terminal equipment based on the at least part of redundant information.
25. A compression processing system, the system comprising:
the target base station is used for determining the target base station which is used as the terminal equipment for switching operation, and acquiring at least part of redundant information in the redundant information which is sent by the source base station and is stored in the source base station and corresponds to the terminal equipment in the process of switching execution of the terminal equipment; the redundant information is redundant information after uplink compression processing; the communication unit is used for performing interaction processing on compressed uplink information with the terminal equipment based on the at least part of redundant information after the terminal equipment completes switching operation;
and the source base station is used for sending at least part of redundant information stored by the source base station and corresponding to the terminal equipment to the target base station.
26. The system of claim 25,
the source base station is used for sending the compression capacity information of the terminal equipment to a target base station; wherein, the compression capability information at least includes whether the terminal device supports uplink compression processing;
correspondingly, the target base station is configured to send an instruction for controlling to start uplink compression to the terminal device when the compression capability information of the terminal device indicates that the terminal device supports uplink compression processing and the target base station supports uplink compression processing.
27. The system of claim 25, further comprising:
the terminal device is used for sending compression capacity information to a target base station after the switching operation is finished, wherein the compression capacity information at least comprises whether the terminal device supports uplink compression processing or not;
correspondingly, the target base station is configured to perform, when the compression capability information indicates that the terminal device supports uplink compression processing and the target base station indicates uplink compression processing, interactive processing of uplink information compressed with the terminal device based on the at least part of redundant information.
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| CN103533586A (en) * | 2012-07-03 | 2014-01-22 | 电信科学技术研究院 | Method and apparatus for signaling interaction and layer reconstruction in switching process |
| WO2014110773A1 (en) * | 2013-01-17 | 2014-07-24 | 华为技术有限公司 | Data packet processing method and device |
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