WO2013026317A1

WO2013026317A1 - Method and system for obtaining voice services over adaptive multi-user channels on one slot (vamos) information by base station subsystem

Info

Publication number: WO2013026317A1
Application number: PCT/CN2012/077261
Authority: WO
Inventors: 李靖; 况振东; 柯昌伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-08-24
Filing date: 2012-06-20
Publication date: 2013-02-28
Also published as: CN102958110A

Abstract

Disclosed in the embodiments of the present invention are a method and system for obtaining Voice services over Adaptive Multi-user channels on One Slot (VAMOS) information by a Base Station Subsystem (BSS). The method comprises the following step: a BSS sends its own VAMOS information to other BSSs in a network when the VAMOS information of the BSS itself has changed. The technical solutions provided in the embodiments of the present invention enable the BSS to obtain VAMOS information of other BSSs in the network in time, thus avoiding interference generated between VAMOS pairing channels effectively.

Description

Method and system for acquiring VAMOS information by base station subsystem

The present invention relates to a method for acquiring VAMOS information by a base station subsystem (BSS, Base Station Subsystem) and a method for acquiring VAMOS information. system. Background technique

Figure 1 shows the network architecture of the traditional Global System for Mobile Communications (GSM). As shown in Figure 1, GSM includes the core network, base station controller (BSC, Base Station Controller), and base station (BTS, Base). Transceiver Station): The BSC and BTS can be collectively referred to as the Base Station Subsystem (BSS); the interface between the core network and the BSC is called the A interface, and the interface between the BSC and the BTS is called The Abis interface, the interface between the BTS and the mobile terminal is called the Um interface; the core network, the BSC, and the BTS work together to provide the mobile terminal with a complete mobile voice service function.

When GSM is specifically a Time Division Multi Access (TDMA) system, the system capacity is limited to 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, there have been many technologies to improve the efficiency of spectrum utilization, and VAMOS technology is one of them. VAMOS technology allows two FR voice users or four HR voice users to be simultaneously carried on one TS, thereby improving the support of voice user capacity throughout the GSM network without requiring additional spectrum resources.

However, with the continuous development and evolution of VAMOS technology, operators' requirements for VAMOS technology are also increasing, and more attention is paid to the impact of VAMOS technology on network performance.

In the prior art, since the BSS cannot know that other BSSs use VAMOS, Therefore, the BSS can only use VAMOS pairing or contact pairing for mobile terminals based on its own use of VAMOS. In this way, after using the VAMOS function between the BSSs, the VAMOS paired channels will have an influence on each other. For example, as shown in FIG. 2, BTS 1 under BSS 1 uses two endpoint users, End User 1 and End User 2, to perform VAMOS pairing, and multiplex HR channel 1 to perform data. Transmission, and BTS2 under BSS 2 uses the frequency point 1 for both end users 3 and 4, and performs VAMOS pairing and multiplexes HR channel 2 for data transmission. At this time, if BTS1 and BTS2 are close to each other, interference between HR channel 1 and HR channel 2 will occur, which may cause mutual interference of signals of the four terminal users. Summary of the invention

In view of this, the main purpose of the embodiments of the present invention is to provide a method and system for acquiring VAMOS information by a BSS, so that the BSS can obtain VAMOS information of other BSSs in the network in time.

In order to solve the above technical problem, the technical solution of the embodiment of the present invention is implemented as follows: The embodiment of the present invention provides a method for a BSS to acquire VAMOS information, where the method includes: after the BAS's own VAMOS information changes, The VAMOS information is sent to other BSSs in the network.

In the above solution, other BSSs in the network are neighboring BSSs of BSSs that transmit VAMOS information.

In the above solution, the VAMOS information includes: frequency point information used by the VAMOS pairing terminal and cell information in which the VAMOS pairing terminal is used.

In the above solution, the method further includes:

After receiving the VAMOS information, the other BSSs in the network reply the confirmation message to the BSS that sends the VAMOS information, and update the VAMOS information stored by itself.

In the foregoing solution, after updating the VAMOS information stored by the method, the method further includes: the other BSSs in the network preferentially use the frequency-to-mobile end without VAMOS pairing. The end performs VAMOS pairing.

In the foregoing solution, before sending the VAMOS information of the VAMOS information to other BSSs in the network, the method further includes:

Configuring an interface for transmitting VAMOS information between BSSs;

The sending of its own VAMOS information to other BSSs in the network is:

The BSS transmits its own VAMOS information to other BSSs in the network through the interface that transmits the VAMOS information.

In the above solution, the BSS reply acknowledgment message to the VAMOS information is: an interface for transmitting VAMOS information between the BSSs, and acknowledging the acknowledgment message to the BSS transmitting the VAMOS information.

The embodiment of the present invention further provides a system for acquiring VAMOS information by using a BSS, where the system includes: a first BSS and a second BSS;

The first BSS is configured to send its own VAMOS information to the second BSS after the VAMOS information changes.

The second BSS is configured to receive the VAMOS information sent by the first BSS.

In the above solution, the number of the second BSSs is one or more.

In the above solution, the second BSS is further configured to: reply to the first BSS with an acknowledgement message, and update the VAMOS information stored by the first BSS;

The first BSS is further configured to receive a confirmation message of the second BSS reply.

In the above solution, the second BSS is further configured to preferentially perform VAMOS pairing on the mobile terminal by using a frequency point that is not VAMOS paired.

In the above solution, the system further includes: a configuration unit, configured to configure an interface for transmitting VAMOS information between the first BSS and the second BSS.

The method and system for acquiring VAMOS information by the BSS provided by the embodiment of the present invention, after the VAMOS information of the BSS itself changes, transmitting its own VAMOS information to the network Its BSS, in this way, enables the BSS to timely acquire the VAMOS information of other BSSs in the network, effectively avoiding interference generated between the VAMOS paired channels.

In addition, after the other BSSs in the network update the VAMOS information stored by themselves, the VAMOS pairing of the mobile terminal is preferentially performed using the frequency point in which the VAMOS pairing is not performed, so that interference generated between the VAMOS paired channels can be effectively avoided. DRAWINGS

Figure 1 is a schematic diagram of a network architecture of GSM;

2 is a schematic diagram of multiplexed HR channel 1 , end users 3 and 4 multiplexed HR channel 2 in GSM mode;

3 is a schematic flowchart of a method for acquiring VAMOS information by a BSS according to an embodiment of the present invention; FIG. 4 is a schematic flowchart of a method for acquiring VAMOS information by a BSS according to an embodiment of the present invention; and FIG. 5 is a schematic structural diagram of a system for acquiring VAMOS information by a BSS according to an embodiment of the present invention. detailed description

The basic idea of the embodiment of the present invention is: After the BAS's own VAMOS information changes, its own VAMOS information is sent to other BSSs in the network.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The method for obtaining the VAMOS information by the BSS in the embodiment of the present invention, as shown in FIG. 3, includes the following steps:

Step 301: After the BAS's own VAMOS information changes, send its own VAMOS information to other BSSs in the network.

Here, the VAMOS information includes: frequency point information used by the VAMOS pairing terminal and the cell information in which the VAMOS pairing terminal is used; the frequency point information used by the VAMOS pairing terminal and the cell information in which the VAMOS pairing terminal is located may be referred to as VAMOS pairing information, and one VAMOS information may be Contains more than one VAMOS pairing information. In practical applications, VAMOS is sent to other BSSs in the network. The information may be VAMOS information that the BSS itself changes, or may be all VAMOS information of the BSS itself. The attributes of the VAMOS information sent to other BSSs in the network may be configured in advance on the BSS as the VAMOS information of the BSS itself or the VAMOS information of the BSS itself. The BSS is determined to be sent to the network according to the configured attributes. The attributes of the VAMOS information of other BSSs are the VAMOS information of which the BSS itself changes, or the VAMOS information of the BSS itself.

The timing at which the BSS's own VAMOS information changes is: The VAMOS pairing situation changes, for example: VAMOS pairing or VAMOS pairing is performed. BSS; wherein the BSS has previously configured its own adjacent BSS, according to which, when the BSS's own VAMOS information changes, it can send its own VAMOS information to the adjacent BSS.

Before performing this step, the method may further include:

Configuring an interface for transmitting VAMOS information between BSSs; the interface is a logical interface, and may be based on an Internet Protocol (IP) bearer or a Time Division Multiplex and Multiplexer (TDM), between BSSs The format of the transmitted message can be specified in the Message Transfer Part (MTP) and the Signalling Connection Control Part (SCCP) in Signaling System No. 7.

The BSS includes: BSC and BTS. Therefore, in the actual application process, the interface for transmitting VAMOS information can be configured on the BSC, that is, the VAMOS information is transmitted through the interface between the BSCs.

The sending of its own VAMOS information to other BSSs in the network is:

Step 302: After receiving the VAMOS information, the other BSSs in the network send the VAMOS The BSS of the information replies with the acknowledgment message, and updates the VAMOS information stored by itself; here, the acknowledgment message is sent to the BSS that sends the VAMOS information, specifically: sending the VAMOS information to the eNB by transmitting the VAMOS information interface between the BSSs The BSS replies with a confirmation message.

After updating the VAMOS information stored by itself, the method may further include: the other BSSs in the network preferentially perform VAMOS pairing on the mobile terminal using frequency points that are not VAMOS paired. The other BSSs in the network can learn, according to the VAMOS information stored in the network, which frequency points are not VAMOS paired. The specific processing of the VAMOS pairing of the mobile terminal is a prior art, and details are not described herein.

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

The application scenario of this embodiment is as follows: The network includes the BSS 1 and the BSS 2, and the BSS 2 is the adjacent BSS of the BSS 1, and the VAMOS information of the BSS 1 is changed. In this embodiment, the BSS obtains the VAMOS information, as shown in FIG. Show, including the following steps:

Step 401: After the VAMOS information of the BSS 1 changes, send the BSS 2 its own

VAMOS information;

Here, the VAMOS information transmitted to the BSS 2 may be VAMOS information in which the BSS 1 itself changes, or may be all VAMOS information in the BSS 1 itself.

Step 402: After receiving the VAMOS information sent by the BSS 1, the BSS 2 updates the VAMOS information stored by itself, and when performing terminal pairing, preferentially uses the frequency point without VAMOS pairing, performs VAMOS pairing on the mobile terminal, and then performs step 403. ;

Here, after receiving the VAMOS information sent by the BSS 1, the BSS 2 indicates that the BSS 2 knows the frequency of the VAMOS pairing terminal used by the BSS 1, so that the frequency point without VAMOS pairing can be preferentially used to perform VAMOS pairing on the mobile terminal.

Step 403: The BSS 2 sends a confirmation message to the BSS 1 to end the current processing flow.

Here, it should be noted that: in actual application, step 403 may also be performed first, and then executed. Step 402, in other words, when performing step 402 and step 403, there is no order.

In order to implement the above method, the embodiment of the present invention further provides a system for acquiring BAS information by a BSS. As shown in FIG. 5, the system includes: a first BSS 51 and a second BSS 52; wherein, the first BSS 51 is used to When its own VAMOS information changes, it will

VAMOS information is sent to the second BSS 52;

The second BSS 52 is configured to receive the VAMOS information sent by the first BSS 51.

Here, it should be noted that the second BSS 52 is another BSS in the network. Further, the second BSS 52 may be an adjacent BSS of the first BSS 51, and the number of the second BSSs 52 may be one or more.

The second BSS 52 is further configured to reply the confirmation message to the first BSS 51, and update the VAMOS information stored by itself.

The first BSS 51 is further configured to receive an acknowledgement message replied by the second BSS 52.

The second BSS 52 is further configured to preferentially perform VAMOS pairing on the mobile terminal using frequency points that are not VAMOS paired.

The system may further include: a configuration unit configured to configure an interface for transmitting VAMOS information between the first BSS 51 and the second BSS 52.

Here, the specific processing of the first BSS and the second BSS in the system in the embodiment of the present invention has been described in detail above, and details are not described herein again.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for obtaining adaptive single-slot multi-user channel voice (VAMOS) information by a base station subsystem (BSS), the method comprising:

When the BSS's own VAMOS information changes, its own VAMOS information is sent to other BSSs in the network.

2. The method according to claim 1, wherein the other BSSs in the network are adjacent BSSs of BSSs that transmit VAMOS information.

The method according to claim 1 or 2, wherein the VAMOS information comprises: frequency point information used by the VAMOS pairing terminal and cell information in which the VAMOS pairing terminal is located.

The method according to claim 3, wherein the method further comprises: after receiving the VAMOS information, the other BSSs in the network reply to the BSS that sends the VAMOS information, and update the stored information. VAMOS information.

The method according to claim 4, wherein after updating the VAMOS information stored by itself, the method further comprises:

The other BSSs in the network preferentially perform VAMOS pairing on the mobile terminal using frequency points that are not VAMOS paired.

The method according to claim 1 or 2, wherein before the VAMOS information is transmitted to other BSSs in the network, the method further comprises:

Configuring an interface for transmitting VAMOS information between BSSs;

The sending of its own VAMOS information to other BSSs in the network is:

The method according to claim 4, wherein the reply message to the BSS that sends the VAMOS information is:

Transmitting VAMOS information to the interface through the interface for transmitting VAMOS information between the BSSs The BSS replies with a confirmation message.

8. A system for acquiring VAMOS information by a BSS, the system comprising: a first BSS and a second BSS; wherein

The system according to claim 8, wherein the number of the second BSSs is one or more.

10. The system of claim 8 wherein:

The second BSS is further configured to reply the confirmation message to the first BSS, and update the VAMOS information stored by the second BSS;

11. The system according to claim 10, wherein the second BSS is further configured to preferentially perform VAMOS pairing on the mobile terminal using a frequency point that is not VAMOS paired.

The system according to any one of claims 8 to 11, characterized in that the system further comprises: a configuration unit, configured to configure an interface for transmitting VAMOS information between the first BSS and the second BSS.