CN115225698A - Radio data communication method, server and radio network controller - Google Patents
Radio data communication method, server and radio network controller Download PDFInfo
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- CN115225698A CN115225698A CN202210853459.0A CN202210853459A CN115225698A CN 115225698 A CN115225698 A CN 115225698A CN 202210853459 A CN202210853459 A CN 202210853459A CN 115225698 A CN115225698 A CN 115225698A
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Abstract
The invention discloses a radio data communication method, a server and a radio network controller, and relates to the technical field of radio communication. The present invention provides a radio data communication method, a server, and a radio network controller, which can change a control point located in a network when a mobile terminal performs a soft handover in uplink or downlink radio data communication without causing data loss, in a radio communication system in which a radio network controller for a soft handover process of the mobile terminal is changed so that data transmission and reception paths can be optimized and network resources can be efficiently used, and in addition, in a radio communication system in which a control point is changed without impairing the continuity of a sequence number provided to the mobile terminal to be transmitted in downlink radio data communication.
Description
Technical Field
The present invention belongs to the technical field of radio communication, and particularly relates to a radio data communication method, a server and a radio network controller.
Background
In the field of radio communication, a communication system using a new communication format is being constructed along with the development of technology, and radio services are being provided. At that time, since many users do not normally switch to a new radio service immediately but gradually, a plurality of radio services are implemented simultaneously. In addition, when constructing new communication formats, although this involves the introduction of new dedicated equipment to accommodate those formats, since existing services are still being implemented, it is necessary to ensure a location for installing dedicated equipment compatible with the new communication formats.
The Universal Mobile Telecommunications System (UMTS) is known as a wireless communication system standardized by the third generation partnership project (3 GPP). UMTS employs W-CDMA as a radio communication technology and provides soft handover as a handover method for mobile terminals. Soft handoff of a mobile terminal is performed in communication with multiple base stations simultaneously, and data loss may occur when handoff is performed.
A prior published patent cn200780053116.X discloses a radio communication apparatus, a radio communication system and a radio communication method. A radio communication apparatus for performing radio communication includes: a first interface conversion unit extracting a first signal and a second signal which are multiplexed and input and correspond to two different formats, and combining the extracted first signal and second signal; and a common amplifier shared by the first signal and the second signal by amplifying the combined first signal and second signal, wherein a signal output from the common amplifier is transmitted.
However, the above-disclosed technology has a problem that data loss is liable to occur during radio communication.
Disclosure of Invention
An object of the present invention is to provide a radio data communication method, a server, and a radio network controller, which can change a control point located in a network when a mobile terminal performs a soft handover, so as to solve the above-mentioned problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention is a radio data communication method, which is applied in a radio communication system, in which when a mobile terminal performs soft handover, the soft handover of the mobile terminal is performed in at least two control points, the control points include a radio network controller I, a radio network controller II and a radio network controller III, and the method comprises the following steps:
the method comprises the following steps: adding a new control point above an uppermost control point in the radio communication system or changing a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and the access point;
step two: in a downlink radio communication system in which a radio network controller A transmits data to a mobile terminal through a radio network controller B and a base station.
As a preferred technical solution of the present invention, the soft handover processing of the mobile terminal includes the following steps:
the method comprises the following steps: at least one of the radio network controller number one and the radio network controller number two determines a first transmission time for transmitting data to all base stations connected when the mobile terminal performs a soft handover;
step two: at least one of the radio network controller number one and the radio network controller number two divides the data and provides a sequence number for each data segment;
step three: at least one of the radio network controller number one and the radio network controller number two transmits each data segment to all base stations at a first transmission time;
step four: in the radio network controller No. one and the radio network controller No. two, the provision of the sequence numbers of the divided data by the radio network controller No. one and the radio network controller No. two and the timing transmission of the divided data are accepted by the radio network controller No. three.
A server applied to a radio communication system in which, when a mobile terminal performs a soft handover, the soft handover of the mobile terminal is performed in at least two control points including a first radio network controller, a second radio network controller, and a third radio network controller, the server comprising a determiner and a notification provider, the determiner determining to add a new control point above an uppermost control point that is an uppermost portion in the radio communication system or to change a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and an access point; the notification provider notifies the radio network controller related to the change of the determination result.
A radio network controller applied to a radio communication system, in downlink radio data communication in which a first radio network controller transmits data to a mobile terminal through a second radio network controller and a base station, when the mobile terminal performs a soft handover, the radio network controller including a notification receiver, a data divider, a sequence number provider, a transmission time determiner, a data transmitter, the notification receiver receiving a notification instructing the first radio network controller to perform the soft handover, wherein the notification includes a determination result of determining to add a new control point over an uppermost control point as an uppermost portion in the radio data communication system or to change a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and an access point; the data divider divides the data according to the notification; the sequence number provider provides a sequence number for each data segment based on the sequence number providing status according to the notification; a transmission time determiner determining, according to the notification, a first transmission time at a base station managed by the first radio network controller and a second transmission time at which the data is transmitted to the second radio network controller among base stations connected when the mobile terminal performs the soft handover; the data transmitter transmits each of the data segments to which the information for requesting the status of providing the sequence number is added to the second radio network controller at the second transmission time according to the notification, and transmits each of the data segments to a base station managed by the first radio network controller among base stations connected when the mobile terminal performs the soft handover at the first transmission time according to the notification.
As a preferred embodiment of the present invention, the data transmitter adds information requesting the provision status of the sequence number to the data segment and transmits the information to the second radio network controller.
As a preferred embodiment of the present invention, the sequence number provider manages the provision state of the sequence number based on the sequence number provided to the data segment to which the information requesting the provision state of the sequence number notified by the second radio network controller is added and the number of data segments transmitted from the transmission of the data segment to which the information requesting the provision state of the sequence number is added to the reception of the sequence number.
As a preferable aspect of the present invention, the radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to the notification from the server.
As a preferred aspect of the present invention, the radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to a notification from the server.
As a preferable aspect of the present invention, the radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to the notification from the server.
The invention has the following beneficial effects:
1. the present invention is to provide a radio communication system in which a radio network controller for a soft handover process of a mobile terminal is changed when the mobile terminal performs a soft handover in uplink or downlink radio data communication, so that data transmission and reception paths can be optimized and network resources can be efficiently used, and further, in which a first radio network controller can be located upstream of a second radio network controller located thereafter, or processing can be performed on the first radio network controller located at the uppermost portion until time has stopped, or processing can be performed on a second radio network controller located downstream of the first radio network controller until time has stopped, or the second radio network controller can be located downstream of the first radio network controller before time, which makes it possible to more flexibly optimize data transmission and reception paths, and in which a control point is changed without impairing continuity of a serial number provided to it to be transmitted to the mobile terminal in downlink radio data communication.
2. The present invention provides a radio data communication method, a server, and a radio network controller that can change a control point located in a network without causing data loss when a mobile terminal performs soft handover.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of a radio data communication method of the present invention;
FIG. 2 is a flow chart of a soft handoff process of a mobile terminal in accordance with the present invention;
fig. 3 is a schematic diagram of a wireless data transmission structure of the server and the radio network controller of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention is a radio data communication method applied in a radio communication system in which a mobile terminal performs a soft handover in at least two control points when the mobile terminal performs the soft handover, the control points including a first radio network controller, a second radio network controller and a third radio network controller, comprising the steps of:
the method comprises the following steps: adding a new control point above an uppermost control point in the radio communication system or changing a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and the access point;
step two: in a downlink radio communication system in which a radio network controller A transmits data to a mobile terminal through a radio network controller B and a base station.
Example two
The technical scheme is based on the first embodiment. Referring to fig. 2, the soft handover process of the mobile terminal includes the following steps:
the method comprises the following steps: at least one of the radio network controller number one and the radio network controller number two determines a first transmission time for transmitting data to all base stations connected when the mobile terminal performs a soft handover;
step two: at least one of the radio network controller number one and the radio network controller number two divides the data and provides a sequence number for each data segment;
step three: at least one of the radio network controller number one and the radio network controller number two transmits each data segment to all base stations at a first transmission time;
step four: in the radio network controller No. one and the radio network controller No. two, the provision of the sequence numbers of the divided data by the radio network controller No. one and the radio network controller No. two and the timing transmission of the divided data are accepted by the radio network controller No. three.
The present invention is to provide a radio communication system in which a radio network controller for a soft handover process of a mobile terminal is changed when the mobile terminal performs a soft handover in uplink or downlink radio data communication, so that data transmission and reception paths can be optimized and network resources can be efficiently used, and further, in which a first radio network controller can be located upstream of a second radio network controller located thereafter, or processing can be performed on the first radio network controller located at the uppermost portion until time has stopped, or processing can be performed on a second radio network controller located downstream of the first radio network controller until time has stopped, or the second radio network controller can be located downstream of the first radio network controller before time, which makes it possible to more flexibly optimize data transmission and reception paths, and in which a control point is changed without impairing continuity of a serial number provided to it to be transmitted to the mobile terminal in downlink radio data communication.
EXAMPLE III
Based on the technical scheme of the second embodiment. Referring to fig. 3, a server is applied to a radio communication system in which a mobile terminal performs a soft handover in at least two control points when the mobile terminal performs the soft handover, wherein the control points include a first radio network controller, a second radio network controller, and a third radio network controller. The server includes a determiner which determines to add a new control point above an uppermost control point which is an uppermost portion in the radio communication system or to change a control point located at a lower control point to the uppermost control point, according to a radio communication environment between the mobile terminal and the access point; the notification provider notifies the radio network controller related to the change of the determination result.
Example four
Based on the technical scheme of the third embodiment. Referring to fig. 3, a radio network controller applied to a radio communication system, in downlink radio data communication in which a first radio network controller transmits data to a mobile terminal through a second radio network controller and a base station, when the mobile terminal performs a soft handover, the radio network controller including a notification receiver, a data divider, a sequence number provider, a transmission time determiner, and a data transmitter, the notification receiver receiving a notification instructing the first radio network controller to perform the soft handover, wherein the notification includes a determination result of determining to add a new control point above an uppermost control point as an uppermost portion in the radio data communication system or to change a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and an access point; the data divider divides the data according to the notification; the sequence number provider provides a sequence number for each data segment based on the sequence number providing status according to the notification; a transmission time determiner determining, according to the notification, a first transmission time at a base station managed by the first radio network controller and a second transmission time at which the data is transmitted to the second radio network controller among base stations connected when the mobile terminal performs the soft handover; the data transmitter transmits each of the data segments to which the information for requesting the status of providing the sequence number is added to the second radio network controller at the second transmission time according to the notification, and transmits each of the data segments to a base station managed by the first radio network controller among base stations connected when the mobile terminal performs the soft handover at the first transmission time according to the notification.
The data transmitter adds information for requesting the provision status of the sequence number to the data segment and transmits to the second radio network controller.
A sequence number provider that takes care of the provision state of the sequence number on the basis of a sequence number provided to a data segment to which information for requesting the provision state of the sequence number notified by the second radio network controller is added and the number of data segments transmitted from the transmission of the data segment to which the information for requesting the provision state of the sequence number is added until the sequence number is received.
The radio network controller number two performs selective combining of data segments from base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to the notification from the server.
The radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover according to the notification from the server.
The radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover according to the notification from the server.
The present invention provides a radio data communication method, a server, and a radio network controller that can change a control point located in a network without causing data loss when a mobile terminal performs soft handover.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A radio data communication method applied to a radio communication system in which, when a mobile terminal performs a soft handover, the soft handover of the mobile terminal is performed in at least two control points including a radio network controller No. one, a radio network controller No. two, and a radio network controller No. three, the method comprising the steps of:
the method comprises the following steps: adding a new control point above an uppermost control point in the radio communication system or changing a control point located at a lower control point to the uppermost control point according to a radio communication environment between the mobile terminal and the access point;
step two: in a downlink radio communication system in which a radio network controller A transmits data to a mobile terminal through a radio network controller B and a base station.
2. The radio data communication method according to claim 1, wherein: the soft handoff processing of the mobile terminal includes the following steps:
the method comprises the following steps: at least one of the radio network controller number one and the radio network controller number two determines a first transmission time for transmitting data to all base stations connected when the mobile terminal performs a soft handover;
step two: at least one of the radio network controller number one and the radio network controller number two divides the data and provides a sequence number for each data segment;
step three: at least one of the radio network controller number one and the radio network controller number two transmits each data segment to all base stations at a first transmission time;
step four: in the radio network controller number one and the radio network controller number two, the provision of the sequence numbers of the divided data by the radio network controller number one and the radio network controller number two and the timing transmission of the divided data are accepted by the radio network controller number three.
3. A server for use in a radio communication system in which a mobile terminal performs a soft handover among at least two control points when the mobile terminal performs the soft handover, the control points including a radio network controller No. one, a radio network controller No. two, and a radio network controller No. three, the server characterized by: comprises that
A determiner that determines to add a new control point above an uppermost control point that is an uppermost portion in the radio communication system or to change a control point located at a lower control point to the uppermost control point, according to a radio communication environment between the mobile terminal and the access point;
a notification provider that notifies the radio network controller related to the change of the determination result.
4. A radio network controller applied to a radio communication system, the radio network controller being a control point for performing a soft handover process of a mobile terminal when the mobile terminal performs a soft handover in downlink radio data communication in which a first radio network controller transmits data to the mobile terminal through a second radio network controller and a base station, characterized in that: comprises that
A notification receiver that receives a notification instructing the first radio network controller to perform a soft handover process, wherein the notification includes a determination result of determining to add a new control point above an uppermost control point that is an uppermost portion in the radio data communication system or to change a control point located at a lower control point to the uppermost control point, according to a radio communication environment between the mobile terminal and the access point;
a data divider that divides the data according to the notification;
a sequence number provider that provides a sequence number for each data segment based on a sequence number providing status according to the notification;
a transmission time determiner which determines, according to the notification, a first transmission time at which data is transmitted to a base station managed by the first radio network controller among base stations connected when the mobile terminal performs soft handover and a second transmission time at which the data is transmitted to the second radio network controller;
a data transmitter which transmits each of the data segments to which the information for requesting the status of the provision of the sequence number is added to the second radio network controller at the second transmission time according to the notification, and transmits each of the data segments to the base station managed by the first radio network controller among the base stations connected when the mobile terminal performs the soft handover at the first transmission time according to the notification.
5. A radio network controller according to claim 4, characterized by: the data transmitter adds information for requesting the provision status of the sequence number to the data segment and transmits to the second radio network controller.
6. A radio network controller according to claim 5, characterized by: and a sequence number provider for managing the provision state of the sequence number based on the sequence number provided to the data segment to which the information for requesting the provision state of the sequence number notified by the second radio network controller is added and the number of data segments transmitted from the transmission of the data segment to which the information for requesting the provision state of the sequence number is added until the sequence number is received.
7. A radio network controller according to claim 6, characterized by: the radio network controller number two performs selective combining of data segments from base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to the notification from the server.
8. A radio network controller according to claim 7, characterized by: the radio network controller number two performs selective combination of data segments of base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover according to the notification from the server.
9. A radio network controller according to claim 8, characterized by: the radio network controller number two performs selective combining of data segments from base stations managed by the radio network controller number two among base stations connected when the mobile terminal performs soft handover, according to the notification from the server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210853459.0A CN115225698A (en) | 2022-07-08 | 2022-07-08 | Radio data communication method, server and radio network controller |
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| CN202210853459.0A CN115225698A (en) | 2022-07-08 | 2022-07-08 | Radio data communication method, server and radio network controller |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098562A (en) * | 2003-02-26 | 2008-01-02 | 株式会社Ntt都科摩 | Radio data communication method, server and radio network controller |
| EP2372938A2 (en) * | 2010-04-05 | 2011-10-05 | NTT DoCoMo, Inc. | Transmission rate adjustment method and radio communication apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098562A (en) * | 2003-02-26 | 2008-01-02 | 株式会社Ntt都科摩 | Radio data communication method, server and radio network controller |
| EP2372938A2 (en) * | 2010-04-05 | 2011-10-05 | NTT DoCoMo, Inc. | Transmission rate adjustment method and radio communication apparatus |
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