WO2011060573A1 - Method and system for acquiring capability supporting services over adaptive multi-user channels on one slot of a mobile terminal - Google Patents

Abstract

A method and a system for acquiring capability supporting to voice services over adaptive multi-user channels on one slot (VAMOS) of a mobile terminal. A mobile switching center informs a target base station sub-system of capability information supporting to technology of voice services over adaptive multi-user channels on one slot (VAMOS); the capability of the terminal for supporting VAMOS technology is acquired by the target base station sub-system according to the acquired support capability information. By using the method of the invention, the state of the mobile terminal for supporting technology of voice services over adaptive multi-user channels on one slot is acquired by the target base station sub-system according to the support capability information reported by the mobile terminal, and the target base station sub-system can distinguish whether VAMOS technique is supported by the mobile terminal, thereby VAMOS technology is reasonably used, thus the support to capacity of voice user by an entire GSM network is improved without increasing frequency resources after VAMOS technology is used by the GSM network.

Description

 Method and system for acquiring mobile terminal support VAMOS capability

 The present invention relates to a Voice Service over Adaptive Multi-user channels on One Slot (VAMOS) system, in particular, a Global System for Mobile Communications (GSM) system. Next, when the mobile terminal is handed over, the switched target base station subsystem acquires a method and system for the mobile terminal to support the VAMOS capability. Background technique

 FIG. 1 is a schematic diagram of a network architecture of a conventional GSM system. As shown in FIG. 1, the core network includes a base station controller (BSC, Base Station Controller) and a base station (BTS, Base Station). The BSC and BTS can in turn be collectively referred to as a Base Station Subsystem (BSS). The interface between the core network and the BSC is called the A interface. The interface between the BSC and the BTS is called the Abis interface. The interface between the BTS and the mobile terminal (MS) is called the Um interface. The core network, BSC and BTS work together to provide complete mobile voice service capabilities to the MS.

As the technology evolves, a flattened GSM network architecture emerges. Figure 2 shows the network architecture of the flattened GSM system. As shown in Figure 2, the flattened GSM network mainly includes the core network and the enhanced base station (eBTS, Enhanced Base). Station ) Two floors. The interface between the core network and the enhanced base station is an A interface, and the interface between the enhanced base station and the mobile terminal is an Um interface; a new interface is defined between the enhanced base stations, which is called an enhanced inter-base station interface, and is enhanced. The inter-base station interface is used for interaction between the enhanced base station and the enhanced base station. Although the traditional GSM system network architecture and the flat GSM network architecture behave the same in the air interface, one of the advantages of the flat GSM network architecture is that it can be enhanced with high-speed packet access that is also flat ( HSPA+ or Long Term Evolution (LTE) networks use the same architecture to operate together, this flat Flattened GSM and HSPA+ or LTE co-speaking operations will enable operators to dynamically share limited spectrum resources among different wireless technologies (eg GSM, HSPA+, LTE, etc.). An application scenario that may occur is as follows: HSPA+ or LTE occupies most of the spectrum resources, and GSM occupies a small portion of spectrum resources, but the number of GSM users does not decrease drastically. At this time, the GSM network is required to provide voice services for these users with relatively less spectrum resources. In order to adapt to this operation mode, the traditional GSM technology is brought to great challenges. Because the traditional GSM is a Time Division Multi Access (TDMA) system, the system capacity is limited by time slots (TS, Time Slot) resources, and one TS can only carry one full rate (FR, Full Rate) voice at the same time. User or two half-rate (HR, Half Rate) voice users.

 With the evolution of technology, many technologies have been developed to improve the efficiency of spectrum utilization. One of them is the Voice Services over Adaptive Multi-user channels on One Slot (VAMOS) technology. VAMOS technology allows two FR voice users or four HR voice users to be carried simultaneously in one time slot, thereby improving the support of voice user capacity throughout the GSM network without requiring additional spectrum resources.

 In the use of the VAMOS technology, when the handover occurs in the mobile terminal, the target base station subsystem after the handover needs to know the support capability of the mobile terminal for the VAMOS technology, but no specific implementation scheme is given in the prior art, therefore, when new After the VAMOS technology is introduced, when the handover occurs, the target base station subsystem after the handover cannot distinguish whether the mobile terminal supports the VAMOS technology, so that the VAMOS technology cannot be used reasonably. Summary of the invention

 In view of this, the main object of the present invention is to provide a method for acquiring VAMOS capability of a mobile terminal, which enables the target base station subsystem after handover to distinguish whether the mobile terminal supports VAMOS technology, thereby reasonably using the VAMOS technology.

Another object of the present invention is to provide a system for acquiring VAMOS capability of a mobile terminal, which enables the target base station subsystem after handover to distinguish whether the mobile terminal supports VAMOS technology. Therefore, the VAMOS technology can be used reasonably.

 In order to achieve the above object, the technical solution of the present invention is achieved as follows:

 A method for obtaining a mobile terminal supporting VAMOS capability, the method comprising:

 The mobile switching center informs the target base station subsystem of the support capability information of the mobile terminal to the adaptive single-slot multi-user channel voice VAMOS technology;

 The target base station subsystem learns the mobile terminal's ability to support the VAMOS technology according to the obtained support capability information.

 The support capability information is carried in the custom message or the existing message to the target base station subsystem.

 The mobile switching center notifying the target base station subsystem of the support capability information includes: the mobile switching center will indicate whether the mobile terminal supports the support capability information of the VAMOS technology, and is carried in the handover request message to the target base station subsystem.

 The support capability information is represented by an indicator of one or more bit information.

 When the support capability information is represented by an indicator of one bit information, the indicator occupies 1 bit for indicating whether the mobile terminal supports the VAMOS technology:

 When the indicator is 0, it means that the mobile terminal does not support VAMOS technology;

 When the indicator is 1, it indicates that the mobile terminal supports VAMOS technology.

 When the support capability information is represented by an indicator of more than one bit information, the indicator is used to indicate whether the base station subsystem mobile terminal supports VAMOS technology and supported

The level of VAMOS technology.

 The method further includes: presetting that when the mobile switching center does not report the support capability information of the VAMOS technology, the target base station subsystem defaults that the mobile terminal does not support the VAMOS technology.

A system for acquiring a VAMOS capability of a mobile terminal, comprising at least a mobile switching center and a target base station subsystem after handover, wherein a mobile switching center, configured to notify the target base station subsystem of the support capability information of the mobile terminal to the VAMOS technology;

 The target base station subsystem is configured to learn whether the mobile terminal supports the VAMOS technology according to the support capability information reported by the mobile switching center.

 The mobile switching center is specifically configured to: support capability information indicating whether the mobile terminal supports the VAMOS technology, and carry the information in the handover request message to the target base station subsystem.

 It can be seen from the technical solution provided by the present invention that the mobile switching center informs the target base station subsystem of the support capability information of the mobile terminal to the VAMOS technology; the target base station subsystem learns the support of the mobile terminal for the VAMOS technology according to the obtained support capability information. ability. According to the method of the present invention, the target base station subsystem learns the support situation of the mobile terminal for the adaptive single-slot multi-user channel voice technology capability according to the support capability information reported by the mobile terminal, so that the target base station subsystem distinguishes whether the mobile terminal is out. The VAMOS technology is supported, so that the VAMOS technology is used reasonably. Thus, after the VAMOS technology is used in the GSM network, the support of the voice capacity of the entire GSM network is improved without requiring an increase in spectrum resources. DRAWINGS

 1 is a schematic diagram of a network architecture of a conventional GSM system;

 2 is a schematic diagram of a network architecture of a flat GSM system;

 3 is a flowchart of a method for obtaining a VAMOS capability of a mobile terminal according to the present invention; FIG. 4 is a schematic diagram of a system for acquiring a VAMOS capability of a mobile terminal according to the present invention; FIG. Figure. detailed description

 FIG. 3 is a flowchart of a method for obtaining a VAMOS capability of a mobile terminal according to the present invention. As shown in FIG. 3, the method includes the following steps:

Step 300: The mobile switching center reports the mobile terminal's support capability for the VAMOS technology. Know the target base station subsystem.

 The implementation of this step may be: when a handover between base station subsystems is required, when the mobile switching center sends a Handover Request message to the target base station subsystem after handover, the VAMOS technology of the mobile terminal that needs to be handed over The support capability information is carried in the handover request message and sent to the target base station subsystem.

 In this step, when the mobile terminal establishes a call, the mobile terminal actively uploads the support capability information of the mobile terminal to the VAMOS technology to the mobile switching center, or the mobile switching center requests the mobile terminal to report the support capability information of the mobile terminal to the VAMOS technology, etc. Obtained, the specific implementation does not belong to the protection scope of the present invention, and details are not described herein again.

 Step 301: The target base station subsystem learns the mobile terminal's support capability for the VAMOS technology according to the obtained support capability information.

 In step 300, the target base station subsystem learns the support status of the mobile terminal for the VAMOS technical capability according to the support capability information reported by the mobile switching center for subsequent processing.

 Further, when the mobile switching center does not report the support capability information of the VAMOS technology, the target base station subsystem defaults that the mobile terminal does not support the VAMOS technology.

 For the method of the present invention, a system for acquiring a VAMOS capability of a mobile terminal is provided. FIG. 4 is a schematic diagram of a composition of a system for acquiring a VAMOS capability of a mobile terminal according to the present invention. As shown in FIG. 4, at least a mobile switching center and a switched a target base station subsystem, wherein

 The mobile switching center is configured to notify the target base station subsystem of the support capability information of the mobile terminal to the VAMOS technology.

 The target base station subsystem is configured to learn whether the mobile terminal supports the VAMOS technology according to the support capability information reported by the mobile switching center.

 The method of the present invention will be described in detail below with reference to the embodiments.

FIG. 5 is a flowchart of an embodiment of the present invention for acquiring a VAMOS capability of a mobile terminal. As shown in FIG. 5, the method includes: Step 500: The mobile switching center not only performs the functions specified by the existing protocol, but also indicates whether the mobile terminal supports the support capability information of the VAMOS technology, and carries the information in the Handover Request message to the target base station subsystem.

The support capability information in this step can be expressed by using the indicator shown in Table 1. The indicator shown in Table 1 is used to inform the base station subsystem whether the mobile terminal that needs to access supports the VAMOS technology.

 Table 1

In Table 1, there is one byte, including 8 bits, wherein the indicator of VAMOS capability occupies 1 bit, which is used to indicate whether the mobile terminal supports VAMOS technology. The value of this bit is shown in Table 2.

 Table 2

In addition, considering the continuous development and evolution of VAMOS technology and the continuous maturity of technology, mobile terminal support for VAMOS technology will also be different. Different mobile terminals will have different support capabilities for VAMOS technology. For example: Some mobile terminals only support the primary VAMOS technology, which can be defined as technology level 1, and some mobile terminals support higher level VAMOS technology, which can be defined as technology level 2, and so on. Therefore, optionally, the mobile terminal's support capability information for the VAMOS technology sent by the mobile terminal to the base station subsystem may also use the indicator representation shown in Table 3, which is used to inform the base station subsystem that the mobile terminal supports The level of VAMOS technology.

table 3 In Table 3, the VAMOS technology level indicator occupies 2 bits, (which may occupy more bits as the level increases), and the 2 are used to indicate the level of the VAMOS technology supported by the mobile terminal. Here, the VAMOS technology level indicator occupies 2 bits as an example, and its value and meaning are shown in Table 4.

 Table 4

 Step 501: The target base station subsystem learns the support status of the mobile terminal for the VAMOS technology according to the support capability information carried in the Handover Request message reported by the mobile switching center.

 It should be noted that, in this embodiment, the support capability information is reported in the Handover Request message as an example, and is not used to limit the scope of protection of the present invention. The support capability information can also be carried in a custom message or other existing message, as long as the base station subsystem is informed of the mobile terminal's ability to support the VAMOS technology.

 The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim A method for obtaining a mobile terminal supporting VAMOS capability, characterized in that the method comprises:  The mobile switching center informs the target base station subsystem of the support capability information of the mobile terminal to the adaptive single-slot multi-user channel voice VAMOS technology;  The target base station subsystem learns the mobile terminal's ability to support the VAMOS technology according to the obtained support capability information.  2. The method according to claim 1, wherein the support capability information is carried in the custom message or the existing message to the target base station subsystem.  3. The method according to claim 2, wherein the mobile switching center notifying the target base station subsystem of the support capability information comprises:  The mobile switching center will indicate whether the mobile terminal supports the support capability information of the VAMOS technology, and is carried in the handover request message to the target base station subsystem.  The method according to any one of claims 1 to 3, wherein the support capability information is represented by an indicator of one or more bit information.  The method according to claim 4, wherein when the support capability information is represented by an indicator of bit information, the indicator occupies 1 bit, and is used to indicate whether the mobile terminal supports VAMOS. Technology:  When the indicator is 0, it means that the mobile terminal does not support VAMOS technology;  When the indicator is 1, it indicates that the mobile terminal supports VAMOS technology.  6. The method according to claim 4, wherein when the support capability information is represented by an indicator of more than one bit information, the indicator is used to indicate that the base station subsystem moves The method according to any one of claims 1 to 3, further comprising: When the mobile switching center does not report the support capability information of the VAMOS technology, the target base station subsystem defaults that the mobile terminal does not support the VAMOS technology.  8. A system for acquiring a VAMOS capability of a mobile terminal, characterized in that it comprises at least a mobile switching center and a target base station subsystem after handover, wherein  a mobile switching center, configured to notify the target base station subsystem of the support capability information of the mobile terminal to the VAMOS technology;  The target base station subsystem is configured to learn whether the mobile terminal supports the VAMOS technology according to the support capability information reported by the mobile switching center.  The system according to claim 8, wherein the mobile switching center is specifically configured to:: support capability information indicating whether the mobile terminal supports the VAMOS technology, and carry the information in the handover request message to the target base station subsystem.