WO2010096962A1

WO2010096962A1 - Method, apparatus and system for distributing global system for mobile communications gsm service channel

Info

Publication number: WO2010096962A1
Application number: PCT/CN2009/070556
Authority: WO
Inventors: 邓永锋
Original assignee: 华为技术有限公司
Priority date: 2009-02-26
Filing date: 2009-02-26
Publication date: 2010-09-02
Also published as: CN102396278A

Abstract

An establishing method, apparatus and system for voice service of global system for mobile communications GSM in the wireless communication field are provided by the present invention. The establishing method comprises: receiving the distributing request message including the service quality information of the current service for distributing the channel for the current service of the voice services over adaptive multiuser orthogonal subchannels VAMOS user transmitted by the core network; determining the required service channel type is the VAMOS channel or the traffic channel TCH channel according to the service quality information; distributing the service channel for the current service according to the service channel type.

Description

Method, device and system for allocating GSM traffic channel

The present invention relates to the field of wireless communications, and in particular, to a method, device and system for allocating a GSM traffic channel.

Background technique

In recent years, the number of users of GSM (Global System for Mobile Communications) and voice services have exploded. How to make more efficient use of existing base stations and frequency resources to provide more effective services for more users has become one of the most concerned issues for operators.

In the 3GPP (3rd Generation Partnership Project) GERAN (GSM EDGE Radio Access Network) #33 plenary session, an idea of increasing voice capacity was first proposed, namely OSC (Orthogonal Sub Channel), which simultaneously accesses two MSs (Mobile Stations) on one physical time slot, and distinguishes them by orthogonal training sequences. This approach doubles the number of available channels without increasing the number of base stations and frequency resources. Later, this concept evolved into VAMOS (Voice services over Adaptive Multiuser Orthogonal Subchannels, voice services based on adaptive multi-user orthogonal subchannels). In the VAMOS system, the BSC (Base Station Controller) uses two users to simultaneously multiplex the same time slot for data transmission. Multiplexing two users into the same time slot is called "pairing". According to the convention described for the constellation diagram, these two can be called I-way users and Q-way users. When more than one user is multiplexed in VAMOS mode on a time slot, the time slot is said to be in VAMOS mode. In the existing VAMOS technology, it is generally considered that the I channel can be connected to a conventional mobile phone (a mobile phone that implements DARP Phase I, or an earlier mobile phone), and the Q channel must be connected to a mobile phone that implements VAMOS technology.

The candidate technologies of VAMOS include OSC, a-QPSK (Quadature Phase Shift Keying) and co-TCH (Com-Traffic Channel). These three candidate technologies are basically the same in principle. The introduction of VAMOS technology enables the BSC to transmit data by simultaneously multiplexing two users into the same time slot. Since each user is strongly interfered by another user at this time, the channel quality of the user in the VAMOS pairing state is seriously degraded. In this scenario, the frame error rate of data transmission increases, the voice quality of the call decreases, and the session service with high QoS requirements cannot be provided, and the user experience is impaired.

Summary of the invention

Embodiments of the present invention disclose a method, apparatus, and system for allocating GSM traffic channels that can allocate suitable channels to different clients to meet session requirements.

Embodiments of the present invention use the following technical solutions:

An embodiment of the present invention provides a method for allocating a GSM traffic channel, including:

Receiving, by the MSC (Mobile Switching Center, the core network), an allocation request message for the current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service;

Determining, according to the quality of service information, a service channel type required for the current service is

VAMOS channel or TCH channel (Traffic Channel);

Allocating a traffic channel for the current service according to the traffic channel type.

A method for allocating a GSM traffic channel according to another embodiment of the present invention includes: transmitting, to a BSC, an allocation request message for a current service allocation channel of a VAMOS user, wherein the request message includes the service of the current service Quality information: The BSC is capable of determining, according to the quality of service information, a required traffic channel type for the current service, a VAMOS channel or a TCH channel, and assigning a traffic channel to the current service according to the service channel type.

Embodiments of the present invention provide a GSM traffic channel allocation apparatus, including:

a receiving unit, configured to receive, by the MSC, an allocation request message that is a current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service;

a determining unit, configured to determine, according to the quality of service information, a service channel type required for the current service to be a VAMOS channel or a TCH channel;

And an allocating unit, configured to allocate a traffic channel for the current service according to the service channel type. Another embodiment of the present invention provides a GSM traffic channel allocation apparatus, including: a sending unit, configured to send, to a BSC, an allocation request message for a current service allocation channel of a VAMOS user, where the request message includes the current service Quality of service information; the BSC is capable of determining, according to the quality of service information, a required traffic channel type for the current service.

A VAMOS channel or a TCH channel, and assigning a traffic channel to the current service according to the traffic channel type.

An embodiment of the present invention further provides a system for allocating a GSM traffic channel, including: a first allocating device, configured to send, to the second distributing device, an allocation request message for a current service allocation channel of the VAMOS user, The request message includes service quality information of the current service;

The second allocation device is disposed on the BSC, and configured to receive an allocation request message sent by the first distribution device, and determine, according to the quality of service information, a traffic channel type required by the current service to be a VAMOS channel or a TCH channel. And assigning a traffic channel to the current service according to the traffic channel type.

An embodiment of the present invention provides a method, an apparatus, and a system for allocating a GSM service channel, by including, in an allocation request sent by the MSC to the BSC, service quality information of a current service based on a VAMOS type channel, so that the BSC can be based on the service quality information. The service allocates the corresponding VAMOS channel or TCH channel, which can allocate suitable channels to different clients to meet the session requirements.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set forth in the description of the claims Other drawings may also be obtained from these drawings without the inventive labor.

1 is a flowchart of a method for allocating a voice traffic channel in a GSM according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for allocating a GSM traffic channel according to another embodiment of the present invention;

3 is a schematic diagram of a device for allocating a GSM traffic channel according to an embodiment of the present invention;

4 is a schematic diagram of a system for allocating a GSM traffic channel according to an embodiment of the present invention. detailed description

A method, an apparatus, and a system for allocating a GSM traffic channel according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1, a method for allocating a GSM service channel according to an embodiment of the present invention includes: S101: Receive an allocation request message that is sent by an MSC for a current service allocation channel of a VAMOS user, where the request message includes the current Service quality information of the business;

5102. Determine, according to the quality of service information, that a service channel type required for the current service is a VAMOS channel or a TCH channel.

5103. Assign a service channel to the current service corresponding to the service channel type.

In this embodiment and subsequent embodiments, the quality of service information is indication information of the service quality of the service, such as QoS information. In the description of the embodiment, it is also possible to explain how the quality of service information works in the embodiment by way of an example of QoS information.

The method for allocating the GSM service channel according to the embodiment of the present invention receives the allocation request message of the current service allocation channel of the VAMOS user sent by the MSC, and determines the current service required according to the service quality information of the current service included in the request message. The type of traffic channel can allocate a corresponding VAMOS channel or TCH channel for the current service of the VAMOS user, so that different clients can be allocated appropriate channels to meet the session requirements.

Another embodiment of the present invention provides a method for allocating a GSM traffic channel, including:

Sending, to the BSC, an allocation request message for the current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service; and the BSC can determine the required service quality information for the current service. The traffic channel type is a VAMOS channel or a TCH channel, and the traffic channel is allocated to the current service corresponding to the traffic channel type.

The method for allocating the GSM service channel according to the embodiment of the present invention includes the service quality of the current service in the allocation request message of the current service allocation channel for the VAMOS user sent to the BSC. The information is such that the BSC can determine and allocate a corresponding VAMOS channel or TCH channel for the current service corresponding to the quality of service information, thereby allocating suitable channels for different clients to meet the session requirements.

Embodiment 1

FIG. 2 is a schematic flow chart showing a method for allocating a GSM traffic channel according to Embodiment 1 of the present invention. This embodiment may include the following steps:

S201. The MSC sends an allocation request message "Assignment Request" to the BSC for the current service allocation channel of the VAMOS user, where the request message includes current service quality of service information.

During the establishment of the voice service, the MSC sends an "Assignment Request" message to the BSC to allocate a channel for the current service of the VAMOS user, requesting the BSC to establish an air interface channel. In this message, the MSC joins the channel type cell "Channel Type" to indicate the type of channel that the BSC should establish. In an embodiment, a VAMOS user refers to a user in a VAMOS system. In the embodiment of the present invention, the quality of service information is indication information of a service to a service quality, such as QoS information. The QoS information can correspond to the QoS level of the current service. High-level QoS services can be initiated by high-level users or urgent or important services initiated by low-level users.

According to the definition of the current protocol, the "Channel Type" cell contains all the information of the radio resources required by the BSC to determine the current service. The "Channel Type" cell contains 5 bytes of basic cells. The coding information is shown in Table 1.

Table 1. Cell structure of "Channel Type"

The various components in the cell are described in detail below.

1) voice / data identification "speech I data indicator" cell

The "speech I data indicator" cell is used to indicate the type of service. Such as VAMOS system main In order to handle the user's voice business. Therefore, in the embodiment involved in the solution, this field is always set to 0001 speech, indicating that the voice service is currently being performed. The specific coding information of the "speech I data indicator" cell is shown in Table 2:

Table 2, speech I data indicator "encoding information of the cell

2) channel rate and type "channel rate and type" cells

For voice traffic, the "channel rate and type" cell is used to indicate the type of wireless channel and voice version required to implement the QoS requirements for the current service.

In this embodiment, the existing QoS indication mode is used, and the direct assignment method is used to indicate the QoS information required by the current service of the BSC by sending the BSC the channel type corresponding to the QoS requirement of the current service and the related voice version.

In the present embodiment, the original "channel rate and type" cell coding is extended, and the QoS information of the VAMOS channel is added thereto. Defined in the scheme is a collection of all possible channel types in the VAMOS system. When actually designing the QoS architecture of the VAMOS system, a subset of them can be selected according to actual needs.

The specific "channel rate and type" cell coding information is shown in Table 3.

Table 3. Encoding information of the "channel rate and type" cell.

Full rate TCH channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

0000 1000

Indication

Half rate TCH channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

0000 1001

Indication

Full/half rate TCH channel, full rate TCH channel priority. After the channel allocation of this request is completed, the full half is allowed.

0000 1010

Conversion. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

Full/half rate TCH channel, half rate TCH channel priority. After the channel allocation of this request is completed, the full half is allowed.

0000 1011

Conversion. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell. Full/half rate TCH channel, full rate TCH channel priority. After the channel allocation of this request is completed, not all

0001 1010

Semi-converted. For the priority definition of the allowed voice version, see "Permitted speech version indication" cell full/half rate TCH channel, half rate TCH channel first. After the channel allocation of this request is completed, not all

0001 1011

Semi-converted. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell full/half rate TCH channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

0000 1111

Indication "cell. After the channel allocation of this request is completed, full half conversion is allowed.

Full/half rate TCH channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

0001 1111

Indication "cell. After the channel allocation of this request is completed, full half conversion is not allowed.

Full rate TCH VAMOS channel, full rate TCH channel priority. Priority of the allowed voice version

0100 1000

Righteous ' 'Permitted speech version indication' cell

Half rate TCH VAMOS channel, half rate TCH channel priority. Priority of the allowed voice version

0100 1001

Righteous ' 'Permitted speech version indication' cell

Full/half rate TCH/VAMOS channel, full rate TCH channel priority. After the channel allocation of this request is completed,

0100 1010 Allows full half conversion, VAMOS channel conversion takes precedence. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

0100 1011 Allows full half conversion, all half conversion priority. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

Full/half rate TCH VAMOS channel, full rate TCH channel priority. After the channel allocation of this request is completed,

0101 1010 Full half conversion is not allowed. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

0101 1011 Reserved (Reserve)

Full/half rate TCH/VAMOS channel. The priority definition of the allowed voice versions can be found in "Permitted speech".

0100 1111

Version indication "cell. After the channel allocation of this request is completed, full half conversion is allowed.

0101 1111

Version indication "cell. After the channel allocation of this request is completed, full semi-conversion is not allowed.

Full rate TCH/VAMOS channel, full rate VAMOS channel priority. Priority of the allowed voice version

1000 1000

See "Permitted speech version indication" cell for definition

Half rate TCH VAMOS channel, half rate VAMOS channel priority. Priority of the allowed voice version

1000 1001

See "Permitted speech version indication" cell for definition

1000 1010 Reserve

Full/half rate TCH/VAMOS channel, half rate VAMOS channel priority. After the channel allocation of this request is completed,

1000 1011 Allows full half conversion, VAMOS channel conversion takes precedence. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

1001 1010 Allows full half conversion, full half conversion priority. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

1001 1011 Full/half rate TCH/VAMOS channel, half rate VAMOS channel priority. After the channel allocation of this request is completed, Full half conversion is not allowed. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

1000 1111 Reserved (Reserve)

1001 1111 Reserved (Reserve)

Full rate VAMOS channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

1100 1000

Indication

Half rate VAMOS channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

1100 1001

Indication

Full/half rate VAMOS channel, full rate VAMOS channel priority. After the channel allocation of this request is completed,

1100 1010

Xu all half converted. For the priority definition of the allowed voice version, see "Permitted speech version indication" cell full/half rate VAMOS channel, half rate VAMOS channel first. After the channel allocation of this request is completed,

1100 1011

Xu all half converted. For the priority definition of the allowed voice version, see "Permitted speech version indication" cell full/half rate VAMOS channel, full rate VAMOS channel priority. After the channel allocation of this request is completed, no

1101 1010 Allows full half conversion. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

Full/half rate VAMOS channel, half rate VAMOS channel priority. After the channel allocation of this request is completed, no

1101 1011 Allows full half conversion. The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell.

Full/half rate VAMOS channel. The priority definition of the allowed voice versions can be found in "Permitted speech version"

1100 1111

1101 1111

Indication "cell. After the channel allocation of the request is completed, the full semi-transition is not allowed to be seen from Table 3. The QoS information includes channel type information of the current service priority, and the current service priority channel type includes: full rate VAMOS Channel, half rate VAMOS channel, full rate TCH channel or half rate TCH channel.

And the QoS information further includes information indicating whether the allocated channel is allowed to be converted after the channel allocation is completed, for example, whether to allow the full-rate VAMOS channel to be converted into the information of the half-rate VAMOS channel, and whether the half-rate VAMOS channel is allowed to be converted to the full Information of the rate VAMOS channel, whether to allow conversion of the full rate TCH channel to the information of the half rate VAMOS channel, or whether the half rate TCH channel is allowed to be converted to the information of the full rate VAMOS channel; and the QoS information further includes whether the channel allocation is completed Information that allows the allocated channel to be converted, such as: whether to allow the VAMOS channel to be converted to information of the TCH channel; or whether to allow the TCH channel to be converted to information of the VAMOS channel. Of course, in the embodiment of the present invention, the "channel rate and type" cell coding information is not limited to Table 3, and may have other forms. Table 3 is only one aspect of the embodiment of the present invention.

3) "Permitted speech version indication" cell For voice services, the "Permitted speech version indication" cell is used to indicate the voice version allowed for the current service. The final voice version of the session is selected by the BSC based on priority. The selection principles are as follows:

If there is a clear channel rate requirement in the "channel rate and type" cell, the "Permitted speech version indication" cell requirement cannot be empty, and the voice version in the cell should be sorted by priority. The voice version indicated by the first byte is the highest priority voice version.

If only the channel rate priority principle is given in the "channel rate and type" cell, the "Permitted speech version indication" cell requirement cannot be empty, and the speech versions in the cell are first sorted according to the priority of the channel rate. Sort the voice channel priority according to the same channel rate. The voice version indicated by the first byte is the highest priority voice version.

In the scenario where the above conditions are not met, the voice versions in the cells should be sorted according to the priority level. The voice version indicated by the first byte is the highest priority voice version.

The specific voice version coding is shown in Table 4.

Table 4, voice version coding information

5202. After receiving the allocation request message sent by the MSC, the BSC determines, according to the quality of service information, a service channel type required by the current service.

S203. The BSC allocates a service channel to the current service according to the service channel type.

When the QoS information in the embodiment indicates that the current service is a higher-level service, the required service channel type corresponding to the determined current service may be a TCH channel, and the TCH channel may be determined to be half corresponding to the QoS information. Rate channel or full rate channel, which ensures session quality for high-level services. When the QoS information indicates that the current service is a normal or relatively low-level service, the service channel type required to determine the current service may be VOMAS, or further determine that the VOMAS channel is a half rate channel or a full rate channel to fully utilize system resources.

In an embodiment, the MSC may further indicate, by using the QoS information, channel information preferentially allocated by the BSC, and may further indicate whether the channel is allowed to perform full rate/half rate conversion. The following describes an embodiment of the present invention. In the following example, the MSC indicates the QoS information of the current service by using a "channel rate and type" cell in the allocation request message.

For example, for a voice service with low QoS requirements, the MSC includes the 1001 1011 code shown in Table 3 in the "channel rate and type" cell code in the allocation request message, meaning: / Half rate TCH/VAMOS channel, half rate VAMOS channel priority. After the channel allocation of this request is completed, full half conversion is not allowed. The priority of the allowed voice versions is defined in the "Permitted speech version indication" cell. Therefore, the BSC will preferentially allocate a half rate VAMOS channel for the service, and no channel conversion will be performed during subsequent voice calls.

For example, for a voice service initiated by a user with high QoS requirements, the MSC includes the code of 0100 1011 shown in Table 3 in the "channel rate and type" cell coding in the allocation request message, meaning : "Full/half rate TCH/VAMOS channel, full rate TCH channel priority. After the channel allocation of this request is completed, full half conversion is allowed, and full half conversion is prioritized." The priority definition of the allowed voice versions can be found in the "Permitted speech version indication" cell. Therefore, the BSC will preferentially allocate the full-rate TCH channel for the service, but during the subsequent voice call, if the user load is increased, the user is preferentially considered to switch to the half-rate TCH channel. If the user is at half speed When the TCH channel is on, the serving cell load is still too heavy to implement a normal call, and the user can consider whether to switch to the VAMOS channel.

For example, for a voice service initiated by a subscriber with a higher QoS requirement, the MSC includes the code of 0001 1010 shown in Table 3 in the "channel rate and type" cell coding in the allocation request message. The meaning is: "Full/half rate TCH channel, full rate TCH channel priority. After the channel allocation of this request is completed, full half conversion is not allowed." The priority of the allowed voice versions is defined in the "Permitted speech version indication" cell. Therefore, the BSC will preferentially allocate a full rate TCH channel for the service, and no channel switching will be performed during subsequent voice calls. Therefore, the service data transmission of the user with high QoS requirements can be ensured, and the user experience is improved.

S204. After the BSC allocates a channel for the current service, the feedback message that the allocation is completed is sent to the MSC. This step is an optional step.

In addition, if the BSC converts the channel for the current service, it may also send a feedback message of the channel transition to the MSC.

The embodiment of the present invention is not limited to being extended only by the "channel rate and type" in the "Channel Type" cell, and the QoS information of the VAMOS channel can be carried in the Assignment Request message by extending other different cells. Allocate a variety of channels including VAMOS for VAMOS services, so as to provide customers with more available data transmission channels corresponding to customer needs under existing base stations and frequency resources.

Embodiment 2

The steps of this embodiment can be the same as those of FIG. 2. When the MSC sends an Assignment Request message to the BSC, the solution in this embodiment introduces a new cell in the request message, where the cell includes the service quality information of the current service based on the VAMOS type channel.

Specifically, in this embodiment, a QoS extension architecture based on VAMOS priority is proposed. The architecture introduces a new cell for the ASSIGNMENT REQUEST message. The VAMOS preference scheme VAMOS preference^ indicates the VAMOS channel type required by the MSC to indicate the BSC of the current service through the cell. The BSC can only use the actual allocation of the wireless channel. The cell determines whether the current service can be optionally carried by the VAMOS channel. The specific coding information of the "VAMOS preference" cell is shown in Table 5.

Table 5. Encoding information of the "VAMOS preference" cell

As shown in Table 5, when the MSC selects the VAMOS usage priority to use only the TCH channel, the BSC will only allocate the TCH channel for the terminal's service. The selection of the full/half rate TCH channel during channel allocation is selected by the BSC based on the existing "channel rate and type" cells. When the MSC selects the VAMOS usage priority to use only the VAMOS channel, the BSC will only allocate the VAMOS channel to the terminal. Whether the channel rate is selected for full rate or half rate is also determined based on the existing "channel rate and type" cells.

If the MSC selects the VAMOS priority to be TCH priority, the BSC will preferentially allocate the TCH channel to the terminal. Whether the channel rate selects the full rate or the half rate is also determined based on the "channel rate and type" cell. The BSC only determines whether to allocate the TCH channel to the terminal to meet the performance requirements of the current cell. For example, if the channel capacity requirement is insufficient, it is determined whether the VAMOS channel is allocated for the terminal. During the call, when the channel quality of the terminal and the cell load change require the BSC to perform channel reconfiguration, the BSC should also preferentially configure the TCH channel for the terminal.

Similarly, for the scenario where the MSC selects the VAMOS priority, if the current cell load is heavy, the BSC will preferentially allocate the VAMOS channel to the terminal. The selection of the full rate or half rate TCH channel during channel assignment is selected by the BSC based on the existing "channel rate and type" cells. During the call, when the channel quality of the terminal and the cell load change require the BSC to perform channel reconfiguration, the BSC should also give priority to configuring the VAMOS channel for the terminal.

In the scenario where the TCH channel and the VAMOS channel are not prioritized, the BSC can arbitrarily configure the user's channel according to its RRM (Radio Resource Management) algorithm. Types of.

The embodiment of the present invention is not limited to adding "VAMOS preference" cells in the Assignment Request message, and may also add QoS information of other cells carrying VAMOS channels, thereby providing customers with existing base stations and frequency resources. More available data transfer channels corresponding to customer needs.

Embodiment 3

The steps of this embodiment can be the same as those of FIG. 2. When the MSC sends an Assignment Request message to the BSC, the scheme of this embodiment includes the QoS information of the current service based on the VAMOS type channel in the "priority riority" cell in the request message.

The bit is redefined as a "VAMOS licensed VAMOS permitted" cell using the original spare bit (bit) 8 in the "priority" cell. The coding structure of the "priority" cell is shown in Table 6.

Table 6, the coding structure of the "priority" cell

The scheme determines whether the QoS requirement of the current session service can use the VAMOS channel bearer only for the priority of the client subscription. For high priority users, the MSC indicates the BSC through the "VAMOS permitted" cell, and the current service cannot be configured on the VAMOS channel. The BSC will only allocate the TCH channel to the current user. For normal users, the MSC sets the "VAMOS permitted" cell to allow the current service to be configured on the VAMOS channel. The BSC preferentially configures the lower priority users on the VAMOS channel according to the cell load and the user priority indicated by the "priority" cell in the Assignment Request message. It is worth noting that, in this scenario, regardless of the extent to which the cell load rises, the high-priority users whose "VAMOS permitted" cells are set to not allow the current service to be configured on the VAMOS channel will always remain on the TCH channel. .

With the "VAMOS permitted" bit, the BSC can be made to distinguish high-priority sessions that can only be allocated on the TCH channel, thereby ensuring the quality of QoS service provided to high-level users. Embodiments of the present invention are not limited to carrying QoS information of a VAMOS channel by the spare bits of "priority" in the Assignment Request message, and may also use vacant bits in other cells to carry QoS information of the VAMOS channel.

Embodiments of the present invention are capable of allocating services to multiple channels including full rate TCH, half rate TCH, full rate VAMOS, half rate VAMOS, etc., corresponding to services with different QoS requirements, and defining whether to allow conversion during subsequent calls. Therefore, the embodiment of the present invention further subdivides the QoS requirements of the VAMOS system, so that the GSM system introduces the VAMOS channel to expand the system capacity, and at the same time ensures the QoS service quality of the high priority users, thereby ensuring The experience of high priority users. The embodiments of the present invention provide customers with more available data transmission channels corresponding to customer requirements under the existing base station and frequency resources, improve the use efficiency of wireless resources, and improve the user experience. As shown in FIG. 3, an embodiment of the present invention further provides a device for allocating a GSM traffic channel, including:

The receiving unit 301 is configured to receive, by the MSC, an allocation request message that is a current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service, and the determining unit 302 is configured to correspond to the service request. The quality information determines that the service channel type required for the current service is a VAMOS channel or a TCH channel;

The allocating unit 303 is configured to allocate a service channel to the current service corresponding to the service channel type.

The apparatus for allocating the GSM traffic channel in this embodiment may be disposed on the BSC.

The embodiment of the present invention further provides another apparatus for allocating a GSM traffic channel, including: a sending unit, configured to send, to the BSC, an allocation request message for a current service allocation channel of the VAMOS user, where the request message includes the current The service quality information of the service; the BSC is capable of determining, according to the quality information of the service, the type of the service channel required for the current service is

a VAMOS channel or a TCH channel, and a traffic channel is allocated for the current service corresponding to the traffic channel type. The device for allocating the GSM traffic channel in this embodiment may be disposed on the MSC.

As shown in FIG. 4, an embodiment of the present invention further provides a system for allocating a GSM traffic channel, including:

a first allocation device, configured to send, by the MSC, an allocation request message for the current service allocation channel of the VAMOS user to the second distribution device, where the request message includes the service quality information of the current service;

The second allocation device is disposed on the BSC, and configured to receive an allocation request message sent by the first distribution device, and determine, according to the quality of service information, a traffic channel type required by the current service to be a VAMOS channel or a TCH channel. And corresponding to the service channel type to allocate a traffic channel for the current service.

Embodiments of the present invention The apparatus and system for allocating GSM traffic channels can implement the allocation of traffic channels by referring to various embodiments of the foregoing method for allocating traffic channels in GSM, thereby realizing the establishment of voice services.

The apparatus and system for allocating the GSM service channel according to the embodiment of the present invention includes the QoS information of the current service based on the VAMOS type channel in the allocation request sent by the MSC to the BSC, so that the BSC can determine and allocate the service quality information for the current service. A variety of types of channels, including VAMOS channels, thereby increasing the number of available channels without increasing the number of base stations and frequency resources, improving the efficiency of use of radio resources, and improving the user experience.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim

A method for allocating a GSM traffic channel, comprising:

Receiving, by the core network, an allocation request message for a current service allocation channel of the VAMOS user, where the request message includes service quality information of the current service;

Determining, according to the quality of service information, a service channel type required for the current service is a VAMOS channel or a TCH channel;

A traffic channel is allocated to the current service corresponding to the traffic channel type.

The method according to claim 1, wherein the request message includes the service quality information of the current service, which is specifically:

The channel rate and the type cell in the request message include extended coding, and the service quality information of the current service is added to the extended code;

Defining quality of service information indicating a current service in a spare field of an existing cell in the request message; or

The request message includes a new cell, and the added cell is used to define service quality information of the current service.

3. The method according to claim 1, wherein the quality of service information comprises channel type information of a current service priority, and the channel type of the current service priority is: a full rate VAMOS channel, a half rate VAMOS channel, a full rate TCH channel or half rate TCH channel.

The method according to claim 3, wherein the quality of service information further includes information indicating whether the allocated channel is allowed to be converted after the channel allocation is completed, and whether the allocated channel is allowed to be converted. The information is:

Whether to allow the conversion of the full-rate VAMOS channel to the information of the half-rate VAMOS channel, whether to allow the conversion of the half-rate VAMOS channel to the information of the full-rate VAMOS channel, whether to allow the conversion of the full-rate TCH channel to the information of the half-rate VAMOS channel, or whether the half rate is allowed The TCH channel is converted to information of a full rate VAMOS channel.

The method according to claim 4, wherein the information about whether the allocated channel is allowed to be converted after the channel allocation is completed further includes: Whether to allow the VAMOS channel to be converted to information of the TCH channel; or

Whether to allow the TCH channel to be converted to information of the VAMOS channel.

The method according to claim 3 or 4 or 5, wherein the service channel is allocated to the current service corresponding to the traffic channel type, specifically:

Corresponding to the channel type of the current service priority in the quality of service information, a traffic channel is allocated for the current service.

7. A method for allocating a GSM traffic channel, characterized by comprising:

Sending, to the base station controller, an allocation request message for the current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service; and the base station controller can correspond to the service quality information as the current service. Determining that the required traffic channel type is a VAMOS channel or a TCH channel, and assigning a traffic channel to the current service corresponding to the traffic channel type.

The method according to claim 7, wherein the request message includes the service quality information of the current service, which is specifically:

And performing channel coding on the channel rate and the type cell in the request message, and adding the service quality information of the current service to the extended code;

Defining a vacant field of an existing cell in the request message as quality of service information indicating a current service; or

A cell is added to the request message, and the cell is used to define service quality information of a current service.

The method according to claim 7 or 8, wherein the quality of service information comprises channel type information of the current service priority, and the channel type of the current service priority is: a full rate VAMOS channel, a half rate VAMOS channel, Full rate TCH channel or half rate TCH channel.

The method according to claim 9, wherein the quality of service information further includes information about whether the allocated channel is allowed to be converted after the channel allocation of the base station controller is completed, and whether the The information about the assigned channel for conversion is:

Whether to allow the conversion of the full-rate VAMOS channel to the information of the half-rate VAMOS channel, whether to allow the conversion of the half-rate VAMOS channel to the information of the full-rate VAMOS channel, whether to allow the conversion of the full-rate TCH channel to the information of the half-rate VAMOS channel, or Whether the half rate TCH channel is allowed to be converted to information of the full rate VAMOS channel.

The method according to claim 10, wherein the information about whether the allocated channel is allowed to be converted after the channel allocation of the base station controller is completed further includes:

Whether to allow the conversion of the VAMOS channel to the TCH channel; or

12. A device for allocating a GSM traffic channel, comprising:

a receiving unit, configured to receive an allocation request message sent by the core network, which is a current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service;

a determining unit, configured to determine, according to the quality information of the quality information, a traffic channel type required for the current service to be a VAMOS channel or a TCH channel;

And an allocating unit, configured to allocate a traffic channel to the current service corresponding to the service channel type.

13. A device for allocating a GSM traffic channel, comprising:

a sending unit, configured to send, to the base station controller, an allocation request message for a current service allocation channel of the VAMOS user, where the request message includes service quality information of the current service; and the base station controller can correspond to the service requirement The quality information determines that the service channel type required for the current service is a VAMOS channel or a TCH channel, and the traffic channel is allocated to the current service corresponding to the service channel type.

14. A system for allocating a GSM traffic channel, comprising:

a first distribution device, configured to send, to the second distribution device, an allocation request message for the current service allocation channel of the VAMOS user, where the request message includes the service quality information of the current service;

The second distribution device is disposed on the base station controller, and configured to receive an allocation request message sent by the first distribution device, and determine, according to the quality of service information, a service channel type required for the current service is a VAMOS channel or a TCH channel, and corresponding to the traffic channel type, a traffic channel is allocated for the current service.