WO2014180413A1

WO2014180413A1 - Mobile terminal capabilities identification method and system, and computer storage medium

Info

Publication number: WO2014180413A1
Application number: PCT/CN2014/078752
Authority: WO
Inventors: 侯晓辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-10-09
Filing date: 2014-05-29
Publication date: 2014-11-13
Also published as: CN104581692A; CN104581692B

Abstract

The present invention discloses a mobile terminal capabilities identification method, comprising: when a mobile terminal (MS) accesses a network, a base station controller (BSC) first activates and assigns a traditional service channel for the MS; after the traditional service channel is assigned, the BSC then activates and assigns a VAMOS channel for the MS; mobile terminal capabilities are determined in accordance with an assignment completion message or an assignment failure message returned by the MS. The present invention additionally discloses a mobile terminal capabilities identification system and a computer storage medium; the present invention can, unperceived by the user, reduce the amount of dropped calls resulting from a false capabilities report leading to channel assignment failure, thus greatly enhancing the user experience.

Description

Method, system and computer storage medium for identifying mobile terminal capabilities

The present invention relates to a mobile terminal capability identification technology in a Global System for Mobile Communications (GSM) system, and in particular to a method, system and computer storage medium for identifying the capabilities of a mobile terminal. Background technique

Voice services over Adaptive Multi-user channels on One Slot is a GSM system defined by the 3rd Generation Partnership Project (3GPP) for the aggregation sublayer (CS). , Convergence Sublayer), the basic principle of VAMOS is to realize the voice transmission of two users simultaneously under one channel, and the downstream modulation scheme of VAMOS is Adaptive Quadrature Phase Shift Keying (AQPSK). The superposition of two Gaussian Filtered Minimum Shift Keying signals (GMSK) is based on the demodulation capability of the terminal and the support of the new training sequence set. It is divided into: VAMOS is not supported. VAMOS not supported ) Legacy mobile terminal, VAMOS I mobile terminal, VAMOS II mobile terminal. Among them, the VAMOS I and II mobile terminals support a new training sequence code set 2 (TSC Set2, Training Sequence Code Set2), which supports transmission of a slow slow associated channel (Shifted SACCH, Slow Associated Control Channel) and the like.

According to the 3GPP 24.008 v9.12.0 protocol requirements, the mobile terminal will indicate

( classmark 3 ) The VAMOS Standard (Level) field in the message indicates which type of mobile terminal it belongs to. However, it has been found that some mobile terminals that report their own VAMOS mobile terminal capabilities do not have VAMOS capabilities, that is, they cannot support new ones. For the TSC Set2, the specific reporting fields are shown in Table 1. Table 1 shows the value meaning table of the VAMOS Level field.

Table 1

For a mobile terminal that has its own VAMOS capability, if the VAMOS channel is directly assigned, the assignment will fail because the mobile terminal does not actually support the TSC Set2, resulting in the mobile terminal half-rate traffic channel (TCH, Traffic Channel Half Rate). The failure fails, making the mobile terminal unable to make a call, which greatly affects the user's feelings. Summary of the invention

In view of this, the embodiments of the present invention are directed to a method, a system, and a computer storage medium for recognizing the capability of a mobile terminal, which can reduce the call drop caused by the channel assignment failure caused by the capability false alarm, without affecting the user's perception. Greatly improved the user experience.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

A first aspect of the embodiments of the present invention provides a method for identifying a capability of a mobile terminal, where the method includes:

When the mobile terminal (MS) accesses the network, the base station controller (BSC) first activates and assigns a traditional traffic channel to the MS;

After the traditional traffic channel assignment is completed, the BSC activates and assigns a VAMOS channel to the MS; the mobile terminal capability is determined according to the Assignment Complete message or the Assignment Failure message returned by the MS. In the above solution, before the BSC activates and assigns a traditional traffic channel to the MS, the method further includes: The BSC receives the classifier 3 message of the MS forwarded by the base transceiver station (BTS), and records the mobile terminal identification information of the MS.

In the above solution, the method includes: the BSC records the mobile terminal capability of the MS into a database by using the mobile terminal identification information of the MS.

In the above solution, the traditional traffic channel is a channel of a training sequence set 1 (TSC Set1); and the VAMOS channel is a channel of a training sequence set 2 (TSC Set2).

In the above solution, the mobile terminal identification information is IMSI or IMEI.

A second aspect of the embodiments of the present invention further provides a system for identifying a capability of a mobile terminal, where the system includes:

The MS, configured to return a legacy service channel assignment complete message after receiving the BSC activation and assigning the legacy traffic channel; returning the assignment complete message or the assignment failure message after receiving the activation and assigning the VAMOS channel;

a BSC, configured to activate and assign a legacy traffic channel to the MS when the MS accesses the network; activate and assign a VAMOS channel to the MS after receiving the legacy traffic channel assignment complete message returned by the MS; The assignment failure message determines the mobile terminal capabilities.

In the above solution, the system further includes a BTS configured to provide communication transmission between the MS and the BSC;

The BSC is further configured to receive a classmark indication message of the MS forwarded by the BTS, and record the mobile terminal identification information of the MS.

In the above solution, the BSC is further configured to record the mobile terminal capability into the database by using the mobile terminal identification information.

The third aspect of the embodiments of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the method according to any one of the first aspects of the embodiments of the present invention. method.

Method, system and computer for identifying mobile terminal capability provided by embodiments of the present invention The storage medium, when the mobile terminal (MS) accesses the network, the base station controller (BSC) first activates and assigns a traditional traffic channel to the MS; after the traditional traffic channel assignment is completed, the BSC activates and assigns the VAMOS channel to the MS; The assignment completion message or the assignment failure message determines the mobile terminal capability; thus, the mobile terminal capability can be identified without affecting the user's perception, and the call drop caused by the VAMOS channel assignment failure caused by the mobile terminal capability false alarm is reduced. Greatly improved the user experience. DRAWINGS

1 is a schematic flowchart of a method for identifying a capability of a mobile terminal according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a method for identifying a capability of a mobile terminal according to Embodiment 1 of the present invention; FIG. 4 is a schematic structural diagram of a system for identifying a mobile terminal according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a method for implementing the capability of identifying a mobile terminal according to an embodiment of the present invention; Schematic diagram of the device structure. detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the embodiment of the present invention, when the mobile terminal (MS) accesses the network, the base station controller (BSC) first activates and assigns a traditional traffic channel to the MS; after the traditional traffic channel assignment is completed, the BSC activates and assigns a VAMOS channel to the MS; The mobile terminal capability is determined based on the assignment completion message or the assignment failure message returned by the MS.

Here, the legacy traffic channel (legacy TCH) is a channel of training sequence code set 1 (TSC Setl); the VAMOS channel is a channel of TSC Set2.

Preferably, after the BSC assigns the VAMOS channel to the MS, the BSC records the real VAMOS capability of the MS into the database by using the mobile terminal identification information of the MS; The mobile terminal identification information is an International Mobile Subscriber Identity (IMSI), or an International Mobile Equipment Identity (IMEI).

FIG. 1 is a schematic flowchart of a method for identifying a capability of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 1 , the method for identifying a capability of a mobile terminal includes:

Step 101: When the MS accesses the network, the BSC first activates and assigns a traditional traffic channel to the MS. Here, before the BSC activates and assigns the traditional traffic channel to the MS, the method further includes: the BSC receiving the base transceiver station (BTS) forwarding MS class 3 message, and record mobile terminal identification information of the MS; wherein the mobile terminal identification information is IMSI or IMEI; Step 102: After the traditional traffic channel assignment is completed, the BSC activates and assigns a VAMOS channel to the MS ;

The traditional traffic channel is a channel of TSC Set1; the VAMOS channel is a channel of TSC Set2;

Step 103: Determine the mobile terminal capability according to the assignment completion message or the assignment failure message returned by the MS.

In practical applications, the BSC assigns a VAMOS channel to the MS, and may assign a success, or may fail to assign. After the step 102, the method further includes: the BSC records the real VAMOS capability of the MS into the database by using the mobile terminal identification information of the MS;

The mobile terminal identification information is IMSI or IMEI.

FIG. 2 is a schematic flowchart of a method for identifying a capability of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 2, the method for identifying a capability of a mobile terminal in this embodiment includes the following steps:

Step 201: The MS establishes a communication connection with the BTS, and reports the VAMOS capability that the VAMOS has. The VAMOS capability of the MS is determined by the VAMOS Level field in the classmark 3 message, as shown in Table 1. Show.

Step 202: After receiving the BTS, forward the classmark 3 message sent by the MS to the BSC. The BSC records the IMSI or IMEI of the MS.

Step 203: The BSC sends a legacy TCH channel activation message to the BTS to activate the legacy TCH channel.

Here, the legacy TCH channel is a channel of TSC Set1;

Step 204: The BTS replies to the activation confirmation message to the BSC.

Step 205: After receiving the activation confirmation message, the BSC assigns a legacy TCH channel to the MS. Here, the assigned legacy TCH channel to the MS is: BSC according to the protocol 3GPP 44.018 vll .3.0 ό Figure 10.5.2.5.1 : Channel Description information element And Table 10.5.2.5.1: Channel Description information element is executed. In the channel description information table, the second byte (8^8 of (^61 2 ) is set to 0, that is, TSC Setl is selected, as shown in Table 2. Table 3 shows that Table 2 and Table 3 are the composition of the Channel Description information element and the information meaning description table.

8 7 6 5 4 3 2 1

MAIO HSN

(low part) (frequency hopping serial number) octet 4

ARFCN (low part)

Table 2

TN, Timeslot number (octet 2)

The TN field is coded as the binary representation of the timeslot number as as defined in 3GPP TS 45.010.

Range: 0 to 7.

The Timeslot number field shall be ignored and all bits treated as spare when received in a PDCH ASSIGNMENT COMMAND message. The sender sets the spare bits as ΌΟΟ' Table 3

Step 206: The MS returns a legacy TCH channel assignment complete message to the BSC.

Step 207: After receiving the legacy TCH channel assignment complete message, the BSC activates the VAMOS channel.

Here, the VAMOS channel is a channel of TSC Set2;

Step 208: The MS replies with a VAMOS channel activation confirmation message to the BSC;

Step 209: After receiving the VAMOS channel activation confirmation message, the BSC assigns a VAMOS channel to the MS.

Here, the BSC assigns a VAMOS channel to the MS as: BSC performs according to the protocol 3GPP 44.018 vll .3.0 ό Figure 10.5.2.5.1 : Channel Description information element and Table 10.5.2.5.1 : Channel Description information element, channel description information In the table, the second byte of Bits 8 is set to 1, which is selected as TSC Set2.

Step 210: The MS replies to the VAMOS channel assignment complete message to the BSC, or the MS replies with a VAMOS channel assignment failure message to the BSC; and the BSC may determine the mobile terminal capability according to the MS completes the assignment completion message or the assignment failure message;

Here, the MS returns a VAMOS channel assignment failure message to the BSC, specifically: the MS sends a VAMOS channel assignment failure message with an RR cause value of 00001001 to the BSC; After the MS returns a VAMOS channel assignment failure message to the BSC, the method further includes: the MS returns the original legacy TCH channel.

Step 211: The BSC records the mobile terminal capability into the database by using the IMSI or IMEI of the MS;

Here, the BSC records the mobile terminal capability into the database by using the IMSI or IMEI of the MS: setting 0 means that the VAMOS capability is not available, 1 means having the VAMOS capability, and the BSC uses the MSSI or IMEI of the MS to record the real VAMOS capability of the MS. And stored in the database.

FIG. 3 is a flowchart of a method for identifying a capability of a mobile terminal according to Embodiment 2 of the present invention. As shown in FIG. 3, the method for identifying a capability of a mobile terminal in this embodiment includes the following steps:

Step 301: The MS establishes a communication connection with the BTS, and reports that it has the VAMOS capability. The report has its own VAMOS capability. Specifically, the MS indicates that the VAMOS capability is available through the VAMOS Level field in the classmark 3 message.

Step 302: The BSC uses the mobile terminal identification information to query the database to determine whether there is a mobile terminal capability record. If yes, go to step 303; if not, go to step 305;

Here, the mobile terminal identification information may be IMSI or IMEI;

Before the BSC queries the database by using the IMEI, the method further includes: the BTS forwards the classmark 3 message sent by the MS to the BSC, and the BSC records the IMSI and the IMEI.

Step 303: The BSC determines whether the mobile terminal identification information corresponding capability record is 1 or 0. If yes, step 304 is performed; if 0, step 305 is performed, the BSC assigns a legacyTCH channel to the MS; Process.

Step 304: The BSC assigns a legacy TCH channel or a VAMOS channel to the MS, and performs step 310 to end the processing flow.

Here, the legacyTCH channel is a channel of TSC Set1;

The VAMOS channel is a channel of TSC Set2; Before the BSC assigns a legacyTCH channel or a VAMOS channel to the MS, the method further includes: the BSC sends a legacyTCH channel activation message to the BTS, the BTS replies an activation confirmation message to the BSC, or the BSC sends a VAMOS channel activation message to the BTS, and the BTS replies to the activation. Confirmation message to the BSC;

Here, the BSC assigns a legacyTCH channel or a VAMOS channel to the MS, specifically: the BSC performs according to Figure 10.5.2.5.1 of the protocol 3GPP 44.018 vll.3.0: Channel Description information element and Table 10.5.2.5.1: Channel Description information element In the channel description information table, Bits 8 of the second byte is set to 0 or 1, that is, TSC Setl or TSC Set2 is selected.

Step 305: The BSC assigns a legacyTCH channel to the MS.

Step 306: The BSC activates the VAMOS channel.

Here, before the BSC activates the VAMOS channel, the method further includes: the MS returns a legacy TCH channel assignment complete message to the BSC;

Step 307: The BSC assigns a VAMOS channel to the MS.

Step 308: The MS replies to the VAMOS channel assignment complete message to the BSC, or the MS replies

The VAMOS channel assignment failure message is sent to the BSC; the BSC may determine the mobile terminal capability according to the assignment completion message or the assignment failure message of the MS reply;

Here, the MS returns a VAMOS channel assignment failure message to the BSC, specifically: the MS sends a VAMOS channel assignment failure message with an RR cause value of 00001001 to the BSC; after the MS returns a VAMOS channel assignment failure message to the BSC, the method Also includes:

The MS returns to the original legacy TCH channel.

Step 309: The BSC records the mobile terminal capability into the database by using the mobile terminal identification information, and updates the database record.

Here, the BSC records the mobile terminal capability into the database by using the mobile terminal identification information, where the mobile terminal identification information is an IMSI or an IMEI; specifically: setting 0 represents Does not have VAMOS capability, 1 represents VAMOS capability, BSC uses IMSI or IMEI to record the real VAMOS capability of the mobile terminal, and stores it in the database to update the database record.

Step 310: End the processing flow.

FIG. 4 is a schematic structural diagram of a system for identifying a capability of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 4, the system component structure for identifying the capability of the mobile terminal includes:

The MS 41 is configured to return a traditional service channel assignment complete message after receiving the BSC activation and assigning the traditional traffic channel; returning the assignment completion message or the assignment failure message after receiving the activation and assigning the VAMOS channel;

The BSC 42 is configured to activate and assign a legacy traffic channel to the MS when the MS accesses the network; activate and assign a VAMOS channel to the MS after receiving the legacy traffic channel assignment complete message returned by the MS; Or assign a failure message to determine the capabilities of the mobile terminal.

Preferably, the system further includes a BTS 43 for providing communication transmission between the MS and the BSC;

The BSC 42 is further configured to receive the class mark 3 message of the MS 41 forwarded by the BTS 43 and record the mobile terminal identification information of the MS 41;

Here, the mobile terminal identification information is IMSI or IMEI.

Preferably, the traditional traffic channel is a channel of TSC Setl;

The VAMOS channel is a channel of TSC Set2.

Preferably, the MS 41 is further configured to report that it has VAMOS capability through the VAMOS Level field in the classmark 3 message.

Preferably, the BSC 42 activates and assigns the legacy traffic channel to the MS 41 as: BSC 42 sends a legacy traffic channel activation message to the BTS 43, BTS 43 replies an activation confirmation message to the BSC 42, BSC 42 Figure 10.5 according to the protocol 3GPP 44.018 vll.3.0 .2.5.1: Channel Description information element and Table 10.5.2.5.1 : Channel Description information element execution, set Bits 8 of the second byte in the channel description information table to 0, that is, select TSC Setl.

The BSC 42 activates and assigns the VAMOS channel to the MS 41 as: BSC 42 sends a VAMOS channel activation message to the BTS 43, BTS 43 replies an activation confirmation message to the BSC 42; BSC 42 follows Figure 10.5.2.5 of the protocol 3GPP 44.018 vll.3.0. 1 : Channel Description information element and Table 10.5.2.5.1 : Channel Description information element is executed. In the channel description information table, Bits 8 of the second byte is set to 1, that is, TSC Set2 is selected.

The BSC 42 is further configured to record the mobile terminal capabilities into the database using the mobile terminal identification information and update the database records.

The embodiment of the invention further describes a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the function of identifying the mobile terminal according to any one of the embodiments of the present invention. Method; specifically the method as described in any of Figures 1 to 3. The computing and storage medium may specifically be a storage medium such as a USB flash drive, an optical disk, or a magnetic tape, and is preferably a non-transitory storage medium.

The embodiment of the present invention further provides the apparatus shown in FIG. 5, the apparatus includes a processor 302, a storage medium 54, and at least one external communication interface 51; the processor 52, the storage medium 54, and the external communication interface 51 all pass through the bus. 53 connections. The processor 53 can be a processing component such as a microprocessor, a central processing unit, a digital signal processor or a programmable logic array.

The device acts as part of a base station controller or a device connected to the base station controller over a network.

Computer-executable instructions are stored on the storage medium 54; the processor 302 executing the computer-executable instructions stored in the storage medium 54 can implement the following solutions:

When the mobile terminal MS accesses the network, the base station controller BSC first activates and assigns a legacy to the MS. Traffic channel; After the traditional traffic channel assignment is completed, the BSC activates and assigns a VAMOS channel to the MS; and determines the mobile terminal capability according to the Assignment Complete message or the Assignment Failure message returned by the MS. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Modifications made in accordance with the principles of the invention are to be understood as falling within the scope of the invention.

Claims

claims

1. A method for identifying mobile terminal capabilities, the method includes:

When the mobile terminal MS accesses the network, the base station controller BSC first activates and assigns traditional service channels to the MS;

After the traditional service channel assignment is completed, the BSC activates and assigns the VAMOS channel to the MS; determines the mobile terminal capabilities based on the assignment completion message or assignment failure message returned by the MS.

2. The method according to claim 1, wherein before the BSC activates and assigns a traditional service channel to the MS, the method further includes:

The BSC receives the classmark indication classmark 3 message of the MS forwarded by the base transceiver station BTS, and records the mobile terminal identification information of the MS.

3. The method according to claim 1, wherein the method includes: the BSC uses the mobile terminal identification information of the MS to record the mobile terminal capabilities of the MS into a database.

4. The method according to claim 1, 2 or 3, wherein the traditional service channel is a channel of training sequence set 1 (TSC Setl);

The VAMOS channel is the channel of training sequence set 2 (TSC Set2).

5. The method according to claim 2 or 3, wherein the mobile terminal identification information is IMSI or IMEI.

6. A system for identifying mobile terminal capabilities, the system includes:

The MS is configured to return a traditional service channel assignment completion message after receiving BSC activation and assignment of a traditional service channel; after receiving activation and assignment of a VAMOS channel, return an assignment completion message or assignment failure message;

The BSC is configured to activate and assign a traditional service channel to the MS when the MS accesses the network; after receiving the traditional service channel assignment completion message returned by the MS, activate and assign the VAMOS channel to the MS; according to the assignment completion message returned by the MS or The assignment failure message determines the mobile terminal capabilities.

7. The system according to claim 6, wherein the system further includes a BTS configured to provide For communication transmission between MS and BSC;

The BSC is also configured to receive the classmark indication classmark 3 message of the MS forwarded by the BTS, and record the mobile terminal identification information of the MS.

8. The system according to claim 6, wherein the BSC is further configured to use the mobile terminal identification information to record the capabilities of the mobile terminal into the database.

9. The system according to claim 6, 7 or 8, wherein the traditional service channel is a channel of TSC Set1;

The VAMOS channel is a channel of TSC Set2.

10. The system according to claim 7 or 8, wherein the mobile terminal identification information is IMSI or IMEI.

11. A computer storage medium, the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method described in any one of claims 1 to 5.