CN102137334A - Attribute consultation method and system - Google Patents
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Abstract
The invention provides an attribute consultation method which comprises the step of carrying out attribute consultation of an application layer protocol by a terminal and a base station through a common signal channel. The invention also provides an attribute consultation system. In the invention, the attribute consultation is carried out through the common signal channel, and thus the service interruption time is shortened and the user experience is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and a system for negotiating an attribute during a handover between a broadcast multicast mode and a unicast mode in a High Rate Packet Data (HRPD) network.
Background
Subsequent evolution of Code Division Multiple Access (CDMA) networks includes two parts, one is an enhancement of CDMA20001x networks and the other is an enhancement of HRPD networks. The HRPD network enhancement introduces a plurality of enhanced technical points aiming at the bottom layer protocol and the upper layer protocol, and the switching of the broadcast multicast mode and the unicast mode is one of the enhanced technical points of the upper layer.
The switching between the broadcast multicast mode and the unicast mode can ensure that a user can still listen to the broadcast multicast service by using a unicast service channel after moving out of a broadcast multicast coverage area under a limited broadcast multicast coverage scene, thereby keeping good user experience.
In order to support the switching function of the broadcast multicast mode and the unicast mode, after a terminal senses that a cell to be visited can not provide the broadcast multicast service through broadcast multicast overhead messages, the terminal can negotiate a stream binding relationship and related attributes related to the broadcast multicast service with a base station, namely, the terminal negotiates different stream applications in a unicast scene, the broadcast multicast service is regarded as a high-level application, negotiates a stream binding relationship and related attributes of a bottom layer for the broadcast multicast service, and then receives the upper-level broadcast multicast service on a unicast service channel.
In the existing multiflow packet application, the enhanced multiflow packet application and the multilink multiflow packet application protocol, new negotiation attribute reservationkkbcmcssflowid association (Reservation and BCMCS (broadcast multicast service) flow ID association attribute), reservationkkbcmcssprogramid association (Reservation and BCMCS program ID association attribute) for the function are introduced, and are used for associating or disassociating the broadcast multicast service flow identified by different broadcast multicast flow ID types with the corresponding Reservation. The Protocol allows dynamic negotiation of the two attributes using a GAUP (Generic Attribute Update Protocol) procedure. After the negotiation of the association relationship attribute is completed, the negotiation of the stream-related attribute carrying the upper layer application also needs to be completed.
However, in the three packet application protocols, the attribute update request message, the attribute update accept message, and the attribute update reject message corresponding to the GAUP flow are currently defined to be only sent on the forward and reverse traffic channels, and cannot satisfy the implementation of the above functions. The reason is that the terminal listens to the broadcast multicast service in the sector and does not establish a service channel with the base station, so the terminal cannot complete the negotiation between the broadcast multicast service stream and the retransmission association relationship attribute and/or the stream correlation attribute of the upper layer application with the base station by using the message, and subsequently can only newly establish connection with other sectors after the terminal moves out of the broadcast multicast coverage area, negotiate the parameters, and open the corresponding application stream transmission to continue the broadcast multicast service.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an attribute negotiation method and system, which can update the attribute in time, reduce the service interruption time and improve the user experience.
In order to solve the above problem, the present invention provides an attribute negotiation method, including:
and the terminal and the base station carry out attribute negotiation of an application layer protocol through a common channel.
Further, the method may further have the following feature, and the application layer protocol includes at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-link multi-stream packet applications.
Further, the method may have a feature that the common channel includes an access channel and a control channel.
Further, the method may further have the following feature, and the attribute negotiation includes: the broadcast multicast service flow negotiates with the association attribute of the Reservation and/or the flow related attribute of the bearer upper layer application.
Further, the method may further have the following characteristics that the negotiation of the association relationship attribute between the broadcast multicast service stream and the Reservation by the terminal and the base station through the common channel includes:
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises an association relation attribute of a multicast broadcast service flow and a Reservation;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, which indicates that the acceptance or rejection terminal accepts or rejects the negotiation value of the association relation attribute of the multicast broadcast service flow and the Reservation.
Further, the method may further have the following characteristic that the negotiation of the stream-related attribute for carrying the upper layer application by the terminal and the base station through the common channel includes:
a base station sends an attribute updating request message to a terminal on a control channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
the terminal sends an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, which indicates that the base station is accepted or rejected to accept or reject the negotiation value of the flow related attribute of the upper layer application of the bearer;
or,
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, wherein the message indicates that the terminal is accepted or rejected to negotiate the stream-related attribute of the upper-layer application of the bearer.
Further, the above method may further have the following features, and the method further includes:
after successfully negotiating the association relationship attribute between the broadcast multicast service stream and the Reservation through a common channel, the terminal and the base station switch to a target base station which does not support the broadcast multicast service, and in the switching process, the terminal requests the target base station to establish a unicast service channel and open the Reservation associated with the broadcast multicast service stream;
and the target base station establishes a unicast service channel, opens the Reservation associated with the broadcast multicast service flow, and transmits the broadcast multicast service flow to the terminal through the unicast service channel.
The invention also provides an attribute negotiation system, which comprises a terminal and a base station, wherein the terminal and the base station are used for carrying out attribute negotiation of the application layer protocol through a common channel.
Further, the system may further have the following feature, and the application layer protocol includes at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-link multi-stream packet applications.
Further, the system may have a feature that the common channel includes an access channel and a control channel.
Further, the system may further have a feature that the terminal and the base station are configured to perform association attribute negotiation between the broadcast multicast service flow and the Reservation and/or stream related attribute negotiation for carrying upper layer application.
Further, the system may further have the following characteristics that the terminal is configured to send an attribute update request message to the base station on the access channel, where the attribute update request message includes an association attribute between the multicast broadcast service stream and the Reservation;
and the base station is used for sending an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, and indicating that the terminal is accepted or rejected to obtain the negotiation value of the association relation attribute of the multicast broadcast service flow and the retransmission.
Further, the above system may further have the following features that the base station is configured to send an attribute update request message to the terminal on the control channel, where the attribute update request message includes a stream-related attribute carrying an upper layer application;
the terminal is used for sending an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, and indicating that the base station is accepted or rejected to negotiate the flow related attribute of the upper layer application of the bearer;
or,
the terminal is used for sending an attribute updating request message to the base station on the access channel, wherein the attribute updating request message contains the flow related attribute for bearing the upper layer application;
and the base station is used for sending an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, and indicating that the terminal is accepted or rejected to the negotiation value of the flow related attribute of the upper layer application of the bearer.
Further, the above system may further have the following feature, the system further comprising a target base station, wherein:
the terminal is also used for switching to a target base station which does not support the broadcast multicast service after successfully negotiating the association relation attribute between the broadcast multicast service stream and the Reservation with the base station through a common channel; in the switching process, requesting the target base station to establish a unicast service channel and open a Reservation associated with the broadcast multicast service flow;
the target base station is configured to establish a unicast service channel, open a Reservation associated with the broadcast multicast service stream, and transmit the broadcast multicast service stream to the terminal through the unicast service channel.
The invention provides a negotiation process which allows a terminal to complete the association relation attribute of the broadcast multicast service stream and the retransmission and/or the stream correlation attribute of the upper layer application in advance through an access channel and a control channel and a base station under the condition that a service channel is not established, when a subsequent terminal moves to an area which can not provide the broadcast multicast service, the stream carrying the broadcast multicast service can be directly opened while the service channel is established with other sectors, the service interruption time can be reduced, and the user experience is improved.
Drawings
Fig. 1 is a flowchart of an attribute negotiation method according to an embodiment of the present invention.
Detailed Description
The invention provides a negotiation process which allows a terminal to complete the association relation attribute of the broadcast multicast service stream and the Reservation and/or the stream correlation attribute of the upper application through an access channel and a control channel and a base station in advance under the condition that a service channel is not established, so that when the subsequent terminal moves to an area which can not provide the broadcast multicast service, the stream carrying the broadcast multicast service can be directly opened while establishing the service channel with other sectors, the service interruption time can be reduced, and the user experience can be improved.
The attribute negotiation method provided by the invention comprises the following steps: and the terminal and the base station carry out attribute negotiation of an application layer protocol through a common channel.
Wherein the common channel includes an Access Channel (AC) and a Control Channel (CC).
Wherein the application layer-by-layer protocol comprises at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-network multi-stream packet applications.
Wherein the attribute negotiation comprises: the broadcast multicast service flow negotiates with a Reservation association attribute and/or a flow related attribute carrying an upper layer application.
The negotiation of the association relationship attribute between the broadcast multicast service stream and the Reservation by the terminal and the base station through the common channel comprises the following steps:
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises an association relation attribute of a multicast broadcast service flow and a Reservation;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, which indicates that the acceptance or rejection terminal accepts or rejects the negotiation value of the association relation attribute of the multicast broadcast service flow and the Reservation.
Wherein: the negotiation of the flow related attribute for bearing the upper layer application by the terminal and the base station through the common channel comprises the following steps:
a base station sends an attribute updating request message to a terminal on a control channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
the terminal sends an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, which indicates that the base station is accepted or rejected to accept or reject the negotiation value of the flow related attribute of the upper layer application of the bearer;
or,
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, wherein the message indicates that the terminal is accepted or rejected to negotiate the stream-related attribute of the upper-layer application of the bearer.
After the terminal and the base station successfully negotiate the association relationship attribute between the broadcast multicast service stream and the Reservation through a common channel, the terminal switches to a target base station which does not support the broadcast multicast service, and in the switching process, the terminal requests the target base station to establish a unicast service channel and open the Reservation associated with the broadcast multicast service stream; and the target base station establishes a unicast service channel, opens the Reservation associated with the broadcast multicast service flow, and transmits the broadcast multicast service flow to the terminal through the unicast service channel.
The present invention adds an access channel and a control channel in the transmission channel types of the AttributeUpdateRequest message, the AttributeUpdateAccept message, and the AttributeUpdateReject message related to the GAUP flow in the multiflow packet application, the enhanced multiflow packet application, and the multilink multiflow packet application protocol, and the specific description is as follows:
1. the related information of the original AttributeUpdateRequest message is shown in Table 1, and the related information of the modified AttributeUpdateRequest message is shown in Table 2, so that the type of a transmission channel is increased.
TABLE 1 Prior to amendment
| Channels (Channels) | FTC RTC (Forward service (reverse backup channel) | SLP (service location protocol) | Reliable (Reliable transport) |
| Addressing (Addressing mode) | unicast (unicast) | Priority (Priority) | 40 |
Table 2 modified
| Channels | CC (control signal FTC RTC channel) AC (Access channel) | SLP | Reliable on FTC and RTC (Reliable transport on Forward and reverse traffic channels) Best efficiency on CC and AC (Best Effort transport on Access channel, control channel) |
| Addressing | Unicast | Priority | 40 |
2. The related information of the original AttributeUpdateAccept message is shown in table 3, and the related information of the modified AttributeUpdateAccept message is shown in table 4, which increases the type of the transmission channel.
TABLE 3 Prior to amendment
| Channels | FTC RTC | SLP | Reliable |
| Addressing | unicast | Priority | 40 |
Table 4 modified
| Channels | CC AC FTC RTC | SLP | Reliable on FTC and RTCBest Effort on CC and AC |
| Addressing | unicast | Priority | 40 |
3. The related information of the original AttributeUpdateReject message is shown in Table 5, and the related information of the modified AttributeUpdateReject message is shown in Table 6, so that the type of a transmission channel is increased.
TABLE 5 before modification
| Channels | FTC | SLP | Reliable |
| Addressing | Unicast | Priority | 40 |
Table 6 modified
| Channels | CC FTC | SLP | Reliable on FTCBest Effort on CC |
| Addressing | Unicast | Priority | 40 |
The invention provides an attribute negotiation method, as shown in fig. 1, comprising:
step 101, an AT (Access Terminal) is under A base transceiver station A (BTS-A);
step 102, AT and AN (Access Network ) establish a session;
step 103, AT completes the broadcast multicast service registration, AN/BTS-A opens the broadcast multicast channel;
step 104, the AN starts to transmit the broadcast multicast service flow under BTS-A, and the AT can receive the service flow;
step 105a, if the AT wishes to associate one or more broadcast-multicast flows with a certain Reservation, the AT and the AN need to update the newly added negotiation attribute for identifying the association between the Reservation and the broadcast-multicast service identification ID through the air interface common channel, i.e. the access channel and the control channel, using the GAUP procedure. Specifically, the AT sends AN AttributeUpdateRequest message to the AN on the access channel, including the above-mentioned attributes;
step 105b, the AN sends AN AttributeUpdateAccept message to the AT through the control channel, which indicates that the AT is accepted about the negotiation value of the attribute;
step 106a, the AT and the AN also need to update the stream related attribute carrying the upper layer application using the GAUP flow, specifically, the AN sends AN AttributeUpdateRequest message to the AT on the control channel, including the stream related attribute;
step 106b, the AT sends AN AttributeUpdateAccept message to the AN through the access channel, which indicates that the negotiation value of the AN about the flow correlation attribute is received;
step 107, the AT monitors the broadcast multicast overhead message;
step 108, the AT knows that the BTS-B does not deploy the broadcast multicast channel according to the monitored broadcast multicast overhead message, and the AT decides to apply for distributing a unicast service channel to the BTS-B so as to continue to receive the broadcast service in the moving process of the AT to the BTS-B;
step 109, the AT sends AN airlink establishment request message to the AN, requesting establishment of a unicast service channel, and simultaneously sending a Reservation request (Reservation onrequest) opening message to the AN, requesting opening of the Reservation associated with the broadcast multicast service stream;
step 110, the AN establishes a unicast service channel, opens the Reservation associated with the broadcast multicast service flow, and sends a TCA (traffic channel assignment) message and a Reservation accept message to the AT as a response;
step 111, the AN starts to transmit the broadcast multicast service stream through the unicast service channel;
AT step 112, the AT receives the broadcast multicast traffic stream over the unicast traffic channel.
The invention also provides an attribute negotiation system, which comprises a terminal and a base station, wherein the terminal and the base station are used for carrying out attribute negotiation of the application layer protocol through a common channel.
The application layer protocol includes at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-link multi-stream packet applications. The common channel includes an access channel and a control channel. The attribute negotiation comprises the association relationship attribute of the broadcast multicast service flow and the Reservation and/or the flow related attribute negotiation of the bearing upper layer application.
The terminal is configured to send an attribute update request message to a base station on an access channel, where the attribute update request message includes an association attribute of a multicast broadcast service stream and a Reservation, and the base station is configured to send an attribute update acceptance or attribute update rejection message to the terminal through a control channel, indicating that the acceptance or rejection terminal accepts or rejects a negotiation value of the association attribute of the multicast broadcast service stream and the Reservation.
The base station is configured to send an attribute update request message to the terminal on a control channel, where the attribute update request message includes a stream-related attribute carrying an upper layer application; the terminal is used for sending an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, and indicating that the base station is accepted or rejected to negotiate the flow related attribute of the upper layer application of the bearer; or, the terminal is configured to send an attribute update request message to the base station on the access channel, where the attribute update request message includes a stream-related attribute carrying an upper layer application; and the base station is used for sending an attribute updating acceptance or attribute updating rejection message to the base station through a control channel, and indicating that the base station accepts or rejects the negotiation value of the terminal about the flow related attribute of the upper-layer application of the bearer.
The system further comprises a target base station, wherein: the terminal is also used for switching to a target base station which does not support the broadcast multicast service after successfully negotiating the association relation attribute between the broadcast multicast service stream and the Reservation with the base station through a common channel; in the switching process, requesting the target base station to establish a unicast service channel and open a Reservation associated with the broadcast multicast service flow; the target base station is configured to establish a unicast service channel, open a Reservation associated with the broadcast multicast service stream, and transmit the broadcast multicast service stream to the terminal through the unicast service channel.
Claims (14)
1. A method for attribute negotiation, comprising:
and the terminal and the base station carry out attribute negotiation of an application layer protocol through a common channel.
2. The method of claim 1, wherein the application layer protocol comprises at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-link multi-stream packet applications.
3. The method of claim 1, wherein the common channel comprises an access channel and a control channel.
4. The method of claim 1, 2 or 3, wherein the attribute negotiation comprises: the broadcast multicast service flow negotiates with the association attribute of the Reservation and/or the flow related attribute of the bearer upper layer application.
5. The method of claim 4, wherein the terminal and the base station performing association attribute negotiation of the broadcast multicast service flow and the Reservation through a common channel comprises:
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises an association relation attribute of a multicast broadcast service flow and a Reservation;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, which indicates that the acceptance or rejection terminal accepts or rejects the negotiation value of the association relation attribute of the multicast broadcast service flow and the Reservation.
6. The method of claim 4, wherein the terminal and the base station performing flow-related attribute negotiation for carrying upper layer applications over a common channel comprises:
a base station sends an attribute updating request message to a terminal on a control channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
the terminal sends an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, which indicates that the base station is accepted or rejected to accept or reject the negotiation value of the flow related attribute of the upper layer application of the bearer;
or,
a terminal sends an attribute updating request message to a base station on an access channel, wherein the attribute updating request message comprises a flow related attribute for bearing upper layer application;
and the base station sends an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, wherein the message indicates that the terminal is accepted or rejected to negotiate the stream-related attribute of the upper-layer application of the bearer.
7. The method of claim 4, further comprising,
after successfully negotiating the association relationship attribute between the broadcast multicast service stream and the Reservation through a common channel, the terminal and the base station switch to a target base station which does not support the broadcast multicast service, and in the switching process, the terminal requests the target base station to establish a unicast service channel and open the Reservation associated with the broadcast multicast service stream;
and the target base station establishes a unicast service channel, opens the Reservation associated with the broadcast multicast service flow, and transmits the broadcast multicast service flow to the terminal through the unicast service channel.
8. The attribute negotiation system is characterized by comprising a terminal and a base station, wherein the terminal and the base station are used for carrying out attribute negotiation of an application layer protocol through a common channel.
9. The system of claim 8, wherein the application layer protocol includes at least one of: multi-stream packet applications, enhanced multi-stream packet applications, and multi-link multi-stream packet applications.
10. The system of claim 8, wherein the common channel comprises an access channel and a control channel.
11. The system according to claim 8, 9 or 10, wherein the terminal and the base station are configured to perform association attribute negotiation between the broadcast multicast service flow and the Reservation and/or flow related attribute negotiation of the bearer upper layer application.
12. The system of claim 11,
the terminal is used for sending an attribute updating request message to the base station on the access channel, wherein the attribute updating request message comprises an association relation attribute of the multicast broadcast service flow and the Reservation;
and the base station is used for sending an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, and indicating that the terminal is accepted or rejected to obtain the negotiation value of the association relation attribute of the multicast broadcast service flow and the retransmission.
13. The system of claim 11,
the base station is used for sending an attribute updating request message to the terminal on a control channel, wherein the attribute updating request message contains the stream-related attribute for bearing the upper layer application;
the terminal is used for sending an attribute updating acceptance or attribute updating rejection message to the base station through the access channel, and indicating that the base station is accepted or rejected to negotiate the flow related attribute of the upper layer application of the bearer;
or,
the terminal is used for sending an attribute updating request message to the base station on the access channel, wherein the attribute updating request message contains the flow related attribute for bearing the upper layer application;
and the base station is used for sending an attribute updating acceptance or attribute updating rejection message to the terminal through the control channel, and indicating that the terminal is accepted or rejected to the negotiation value of the flow related attribute of the upper layer application of the bearer.
14. The system of claim 11, wherein the system further comprises a target base station, wherein:
the terminal is also used for switching to a target base station which does not support the broadcast multicast service after successfully negotiating the association relation attribute between the broadcast multicast service stream and the Reservation with the base station through a common channel; in the switching process, requesting the target base station to establish a unicast service channel and open a Reservation associated with the broadcast multicast service flow;
the target base station is configured to establish a unicast service channel, open a Reservation associated with the broadcast multicast service stream, and transmit the broadcast multicast service stream to the terminal through the unicast service channel.
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| CN102137334B (en) | 2016-08-10 |
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