CN111314866B - Communication method and communication system for voice service - Google Patents
Communication method and communication system for voice service Download PDFInfo
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- CN111314866B CN111314866B CN201811508294.3A CN201811508294A CN111314866B CN 111314866 B CN111314866 B CN 111314866B CN 201811508294 A CN201811508294 A CN 201811508294A CN 111314866 B CN111314866 B CN 111314866B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/50—Service provisioning or reconfiguring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
Abstract
The disclosure provides a communication method and a communication system for voice service, and relates to the technical field of communication. The communication method comprises the following steps: the method comprises the steps that a plurality of base stations respectively send notification messages to core network equipment, wherein each notification message comprises a group identity configured by each base station; the plurality of base stations include a first base station and a second base station; under the condition that a user terminal is switched from a first base station to a second base station, the core network equipment determines a base station group, wherein the base station group comprises the second base station and a base station with the same group identity as the second base station; the core network equipment sends a voice service data packet to all base stations in the base station group, wherein the voice service data packet has a number; and the second base station and the user terminal mutually transmit the voice service data packet based on the number of the voice service data packet. The method and the device can reduce the probability of the data packet loss phenomenon in a high-speed scene.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communication method and a communication system for a voice service.
Background
The protocol specifies that voice traffic is in UM (Unacknowledged Mode) Mode. In order to ensure time delay in the UM mode, when a user switches, a data packet which is not successfully transmitted or received in a source cell is not forwarded to a target base station. The terminal sends the data packet which is finished but does not receive the ACK (acknowledgement) at the source base station to the target base station, and does not carry out retransmission. When a user is in a high-speed scene (such as riding a high-speed rail, a train or a car), due to the fast moving speed and frequent switching, the voice quality is seriously affected by frequent switching.
For example, high speed vehicle speeds may reach 350 km/h. The 5G network (fifth generation mobile communication network) adopts high frequency coverage, and the base station distance is smaller than that of the 4G network (fourth generation mobile communication network). Assuming that the base station spacing of a 5G base station covering a high speed is 500 meters, the frame length of a voice frame is 20ms (millisecond), the frame length of a silence frame is 160ms, and the activation factor is 0.4, simulation shows that the packet loss rate caused by high-speed movement can be as high as 1.94%, and the influence is generated on the voice quality.
Fig. 1 is a schematic diagram illustrating a packet loss phenomenon occurring in the related art. Fig. 1 shows a base station 101 and a location point 102 where a packet loss (packet loss for short) phenomenon may occur. In the related art, for the UM mode carrying the voice service, the base station does not forward and send the unfinished data packet during the handover, and the terminal does not retransmit the data packet that does not receive the ACK acknowledgement. In a fast moving scenario, this mechanism may cause an increase in packet loss rate, which has a large impact on voice service quality.
Disclosure of Invention
The technical problem that this disclosure solved is: a communication method for voice service is provided to reduce the probability of a packet loss phenomenon in a high-speed scenario.
According to an aspect of the embodiments of the present disclosure, there is provided a communication method for a voice service, including: the method comprises the steps that a plurality of base stations respectively send notification messages to core network equipment, wherein each notification message comprises a group identity configured by each base station; the plurality of base stations include a first base station and a second base station; under the condition that a user terminal is switched from a first base station to a second base station, the core network equipment determines a base station group, wherein the base station group comprises the second base station and a base station with the same group identity as the second base station; the core network equipment sends voice service data packets to all base stations in the base station group, wherein the voice service data packets have serial numbers; and the second base station and the user terminal mutually transmit the voice service data packet based on the number of the voice service data packet.
In some embodiments, when the user terminal is switched out from a base station, the core network device starts a timer for the base station, and performs zero clearing when the timing time of the timer is greater than a time threshold; wherein the base station group does not include a base station with a timing time different from 0.
In some embodiments, the step of mutually transmitting the voice service data packet by the second base station and the user terminal comprises: the second base station receives a switching indication message from the first base station, wherein the switching indication message comprises the number of the Nth voice service data packet sent to the first base station by the user terminal, and N is a positive integer; the user terminal sends a switching completion message to the second base station, wherein the switching completion message comprises the serial number of the Mth voice service data packet sent to the user terminal by the first base station, and M is a positive integer; the user terminal sends an (N + 1) th voice service data packet to the second base station; and the second base station sends the (M + 1) th voice service data packet to the user terminal.
In some embodiments, the communication method further comprises: after receiving the switching completion message, the second base station sends a message containing the switching completion message to the first base station; and the first base station clears the cached voice service data packet after acquiring the switching completion information.
In some embodiments, each base station configures one or more group identities.
According to another aspect of the embodiments of the present disclosure, there is provided a communication system for voice service, including: the base stations are used for respectively sending notification messages to the core network equipment, each notification message comprises a group identity configured by each base station, and each base station is used for transmitting a voice service data packet to the user terminal based on the number of the voice service data packet; the plurality of base stations include a first base station and a second base station; the core network device is configured to determine a base station group when a user equipment is handed over from the first base station to the second base station, where the base station group includes the second base station and base stations having a same group identity as the second base station, and is further configured to send a voice service data packet to all base stations in the base station group, where the voice service data packet has a serial number; and the user terminal is used for transmitting the voice service data packet to the base station based on the number of the voice service data packet.
In some embodiments, the core network device is further configured to start a timer for a base station when the user terminal is switched out from the base station, and perform zero clearing when a timing time of the timer is greater than a time threshold; wherein the base station group does not include a base station with a timing time different from 0.
In some embodiments, the second base station is configured to receive a handover indication message from the first base station, the handover indication message including a number of an nth voice service data packet sent by the user terminal to the first base station, where N is a positive integer, and to send an M +1 th voice service data packet to the user terminal, where M is a positive integer; the user terminal is configured to send a handover complete message to the second base station, where the handover complete message includes a number of an mth voice service data packet sent to the user terminal by the first base station, and is configured to send an (N + 1) th voice service data packet to the second base station.
In some embodiments, the second base station is further configured to send a message including handover complete information to the first base station after receiving the handover complete message; and the first base station is used for clearing the cached voice service data packet after acquiring the switching completion information.
In some embodiments, each base station configures one or more group identities.
According to another aspect of the embodiments of the present disclosure, there is provided a communication system for voice service, including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.
According to another aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method as previously described.
In the communication method, a plurality of base stations respectively send notification messages to core network equipment, and each notification message includes a group identity configured by each base station. Under the condition that the user terminal is switched from the first base station to the second base station, the core network equipment determines a base station group, wherein the base station group comprises the second base station and the base station with the same group identity identification as the second base station. The core network device sends a voice service data packet to all base stations in the base station group, wherein the voice service data packet has a number. Based on the number of the voice service data packet, the second base station and the user terminal mutually transmit the voice service data packet. The communication method can reduce the probability of data packet loss in a high-speed scene.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram illustrating a packet loss phenomenon occurring in the related art;
fig. 2 is a flow chart illustrating a communication method for voice traffic according to some embodiments of the present disclosure;
FIG. 3 is a schematic diagram illustrating grouping of base stations according to some embodiments of the present disclosure;
fig. 4 is a flow chart illustrating a communication method for voice traffic according to further embodiments of the present disclosure;
fig. 5 is a block diagram illustrating a communication system for voice traffic in accordance with some embodiments of the present disclosure;
fig. 6 is a block diagram illustrating a communication system for voice traffic according to further embodiments of the present disclosure;
fig. 7 is a block diagram illustrating a communication system for voice services according to further embodiments of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 2 is a flow chart illustrating a communication method for voice traffic according to some embodiments of the present disclosure. Fig. 3 is a schematic diagram illustrating grouping of base stations according to some embodiments of the present disclosure. Communication methods according to some embodiments of the present disclosure are described in detail below in conjunction with fig. 2 and 3. As shown in fig. 2, the communication method includes steps S202 to S208.
In step S202, the plurality of base stations respectively send notification messages (for example, may be referred to as first notification messages) to the core network device, where each notification message includes a group identity (alternatively referred to as a group ID or a cluster ID) configured by each base station. For example, the plurality of base stations includes a first base station and a second base station. Each base station may be configured with one or more group identities.
For example, FIG. 3 shows a plurality of base stations 301-311. Wherein base stations 301, 302, 303, and 304 configure group ID1, base stations 304, 305, and 306 configure group ID2, base stations 306, 307, and 308 configure group ID3, and base stations 308, 309, and 310 configure group ID 4. Here, the base station 304 is configured with two group identities (i.e., group ID1 and group ID2), the base station 306 is configured with two group identities (i.e., group ID2 and group ID3), and the base station 308 is configured with two group identities (i.e., group ID3 and group ID 4).
In some embodiments, before the plurality of base stations send the notification message to the core network device, the communication method may further include: the base stations are respectively configured with group identity marks and a high-speed mode. The notification message may also include a high speed mode configured by each base station. The high speed mode is a mode for implementing a communication method of a voice service in a high speed scenario. For example, the altitude mode may cause the base station or the core device or the like to perform the subsequent steps. The high-speed mode is a mode configured by the base station or the core network device, which can support the communication of the user terminal in the case of high-speed operation (for example, on a high-speed rail where a user holding the user terminal is operating). For example, in the high-speed mode, the base station can enable the user terminal to perform good communication even when the user terminal is traveling at a high speed (for example, the user terminal may be referred to as high-speed traveling if the user's traveling speed exceeds a certain speed threshold).
For example, the plurality of base stations configure the high-speed mode and respectively configure the group ids. Each base station notifies the core network device of the group identity and the high-speed mode of the base station by sending a notification message to the core network device. In this way, the base station configures the group identity and the high-speed mode of the base station in a core network in a self-configuration mode. The base station and the core network equipment jointly store the high-speed mode and the group identity identification information.
Returning to fig. 2, in step S204, in a case that the user terminal is handed over from the first base station to the second base station, the core network device determines a base station group, where the base station group includes the second base station and base stations having the same group identity as the second base station.
For example, as shown in fig. 3, in the case where the base station 303 serves as a first base station and the base station 304 serves as a second base station, when the user terminal is handed over from the first base station 303 to the second base station 304, the second base station 304 serves as a current serving base station for the user terminal. The core network device determines that the base station group includes the second base station 304 and the base stations having the same group identity as the second base station 304. Since the base station 304 has the group ID1 and the group ID2, the base station group includes six base stations 301-306. This allows a group of base stations to be determined.
In some embodiments, when the ue is switched out from a base station (a certain base station), the core network device starts a timer for the base station, and clears the timer (i.e., changes the timer to 0) when the time counted by the timer is greater than a time threshold. Wherein, the base station group may not include a base station with a timing time different from 0.
For example, when a user terminal is handed over from a first base station 303 to a second base station 304, the user terminal is handed off from the first base station 303, and the core network device starts a timer for the first base station 303. If the counted time of the timer is not 0 (i.e., the timer is counting), the base station group does not include the base station 303 whose counted time is not 0. Similarly, if the time counted by the timer of the current base station 302 is also not 0, the base station group also does not include the base station 302. Thus, the currently determined group of base stations may include base stations 301, 304, 305, and 306. Therefore, the number of base stations included in the base station group can be reduced by setting the timer. Therefore, in the subsequent step, the core network device can send the data packets to fewer base stations in the process of sending the data packets to all the base stations in the base station group, so that the network pressure is reduced.
On the other hand, if a relatively long time has elapsed and the counted time of the timer exceeds the time threshold, the count is cleared. For example, if the timing time of the base station 301 exceeds the time threshold and the timing of the base station 301 is 0, the base station group includes the base station 301. Thus, for special situations, for example, a user may take a high-speed rail back to pass through the base station 301, the base station 301 may still be the base station included in the current base station group. In the subsequent steps, the core network equipment sends data packets to all base stations in the base station group, so that the phenomenon of packet loss is prevented as much as possible.
It should be noted that the "time threshold" herein may be determined according to actual needs. For example, the time threshold may be any value within 5 minutes to 10 minutes. Of course, the scope of the time threshold of the present disclosure is not so limited.
Returning to fig. 2, in step S206, the core network device transmits a voice service data packet to all base stations in the base station group, where the voice service data packet has a number.
For example, for a Voice service, the core network device numbers each Voice service data packet, and adds a number (Voice Sequence) to the data packet. This number is used for management of data transmission.
For example, a voice service data packet (or encapsulated packet called a voice frame) may include: a number Header (Voice Sequence Header), an IP (Internet Protocol) Header (IP Header), a UDP (User Datagram Protocol) Header (UDP Header), an RTP (Real-time Transport Protocol) Header (RTP Header), an AMR (Adaptive Muti Rate), and the like.
In step S208, the second base station and the user terminal mutually transmit the voice service data packet based on the number of the voice service data packet.
In some embodiments, this step S208 may include: and the second base station receives a switching indication message from the first base station, wherein the switching indication message comprises the number of the Nth voice service data packet sent to the first base station by the user terminal, and N is a positive integer. The step S208 may further include: the user terminal sends a switching completion message to the second base station, wherein the switching completion message comprises the serial number of the Mth voice service data packet sent to the user terminal by the first base station, and M is a positive integer. The step S208 may further include: and the user terminal sends the (N + 1) th voice service data packet to the second base station. The step S208 may further include: and the second base station sends the (M + 1) th voice service data packet to the user terminal.
In this embodiment, the user terminal sends the (N + 1) th voice service data packet to the second base station, and the second base station sends the (M + 1) th voice service data packet to the user terminal, so that the voice service data packet can be prevented from being lost, and the voice service data packet that the user terminal has received or sent does not need to be repeatedly received or sent, thereby reducing the network pressure.
It should be noted that the core network device and the user terminal respectively number the voice service data packets sent by them. That is, for a voice service data packet sent by a core network device to a base station, the core network device may add a number in front of the voice service data packet; for a voice service data packet sent by a user terminal to a base station, the user terminal may add a number before the voice service data packet.
To this end, a communication method for voice traffic according to some embodiments of the present disclosure is provided. In the method, a plurality of base stations respectively send notification messages to core network equipment, wherein each notification message comprises a group identity configured by each base station. Under the condition that the user terminal is switched from the first base station to the second base station, the core network equipment determines a base station group, wherein the base station group comprises the second base station and the base station with the same group identity identification as the second base station. The core network device sends a voice service data packet to all base stations in the base station group, wherein the voice service data packet has a number. Based on the number of the voice service data packet, the second base station and the user terminal mutually transmit the voice service data packet. The communication method can reduce the probability of data packet loss in a high-speed scene. Therefore, the voice quality can be effectively improved, and the user experience is improved.
The method disclosed by the invention realizes the 5G voice service resource management aiming at the high-speed scene. In the method, the network side can estimate base stations which a user may pass through, and set the base stations as a base station group, and when the core network equipment pushes voice service data to the base stations, the base stations are pushed to all the base stations in the group at the same time, so that voice packet loss caused by frequent switching is reduced, voice quality is effectively improved, and user experience is improved.
In some embodiments, the communication method may further include: after receiving a handover complete message (the handover complete message includes handover complete information), the second base station sends a message (e.g., a notification message) including the handover complete information to the first base station; and the first base station clears the cached voice service data packet after acquiring the switching completion information. This can make the base station switched out by the user terminal clear the buffered data packet, reducing the resource occupancy.
Fig. 4 is a flow chart illustrating communication methods for voice traffic according to further embodiments of the present disclosure. As shown in fig. 4, the communication method includes steps S402 to S422.
In step S402, the plurality of base stations configure the group id and the high speed mode, respectively.
In step S404, the plurality of base stations respectively send notification messages to the core network device, where each notification message includes the group identity and the high-speed mode configured by each base station. In this way, the core network device also knows and configures the group ids and the high-speed mode.
In step S406, when the ue is switched from a certain base station, the core network device starts a timer for the base station, wherein the timer is cleared when the timing time t of the timer is greater than the time threshold.
For example, the Timer configured by the core network device may be referred to as a Group Prohibit Timer (Group Prohibit Timer). The timer can be used for maintaining a base station group by a core network, when each user is switched out from a certain base station, the timer is started aiming at the base station, and when the timing time t is greater than a time threshold value, the timing is cleared by 0.
In step S408, in the case where the user terminal is handed over from the first base station (as the source base station) to the second base station (as the target base station), the core network device determines a base station group. The base station group comprises a second base station and base stations with the same group identity as the second base station, and does not comprise the base station with the timing time not being 0.
In this step, when the ue switches to a certain base station, the core network device maintains a user-level base station group. The base station group is active for voice traffic. The base station group includes: the base station comprises a service base station and base stations with the same group identity as the service base station, but does not comprise the base station with the timing time different from 0. In the above embodiment, the second base station is the current serving base station of the ue.
In step S410, the core network device sends a voice service data packet to all base stations in the base station group, where the voice service data packet has a number.
For example, when forwarding a voice service data packet to a second base station (the second base station is a serving base station), the core network device forwards the voice service data packet to all base stations in the base station group.
In step S412, the second base station receives a handover indication message from the first base station, where the handover indication message includes the number of the nth voice service data packet sent by the ue to the first base station, where N is a positive integer.
That is, the handover indication message carries the Voice Sequence number of the last successful Voice packet received by the first base station: and N is added. The second base station receives the switching indication message, and then can know that the voice service data packet successfully received by the first base station recently is the Nth voice service data packet.
In step S414, the ue sends a handover complete message to the second base station, where the handover complete message includes the number of the mth voice service data packet sent to the ue by the first base station, where M is a positive integer.
That is, the handover completion message carries the Voice service data packet number Voice Sequence that the user terminal has successfully received recently: and M. The second base station receives the switching completion message, and can know that the voice service data packet which is successfully received recently by the user terminal is the Mth voice service data packet.
In step S416, the ue sends the (N + 1) th voice service data packet to the second base station.
In step S418, the second base station transmits the M +1 th voice service data packet to the user terminal.
In step S420, after receiving the handover complete message, the second base station sends a message containing handover complete information to the first base station. The handover complete message contains handover complete information. For example, after receiving the handover complete message, the second base station sends a notification message (which may be referred to as a second notification message) containing the handover complete information to the first base station.
In step S422, the first base station clears the cached voice service data packet after acquiring the handover completion information.
To this end, communication methods for voice services according to further embodiments of the present disclosure are provided. The method realizes the network resource management of the 5G voice service in a high-speed scene, can reduce the packet loss probability of voice data caused by frequent switching of the user terminal in the high-speed moving process of the user terminal, improves the user experience of the voice service of a high-speed running user, and further improves the network competitiveness.
Fig. 5 is a block diagram illustrating a communication system for voice traffic according to some embodiments of the present disclosure. As shown in fig. 5, the communication system may include a plurality of base stations (e.g., base stations 511, 512, and 513), a core network device 520, and a user terminal 530.
The plurality of base stations are configured to send notification messages to the core network device 520, respectively. Each notification message includes a group identity configured by each base station. Each base station may be configured to transmit voice service data packets to user terminal 530 based on the numbering of the voice service data packets. The plurality of base stations includes a first base station 511 and a second base station 512. For example, each base station may be configured with one or more group identities.
The core network device 520 is used to determine a base station group in case of a handover of a user terminal 530 from a first base station 511 to a second base station 512. The base station set includes the second base station 512 and base stations having the same group id as the second base station 512. The core network device 520 is also configured to send voice service data packets to all base stations in the base station group. The voice service data packet has a number.
The user terminal 530 is configured to transmit the voice service data packet to the base station based on the number of the voice service data packet.
To this end, a communication system for voice services according to some embodiments of the present disclosure is provided. The communication system can reduce the packet loss probability of voice data caused by frequent switching of the user terminal in the high-speed moving process of the user terminal, improve the user experience of voice services of users running at high speed, and further improve the network competitiveness.
In some embodiments, the core network device 520 may further be configured to start a timer for a base station (e.g., the first base station 511) when the ue 530 is switched out from the base station, and clear the timer when the counted time of the timer is greater than a time threshold. Wherein the base station group does not include a base station with a timing time different from 0.
In some embodiments, the second base station 512 may be configured to receive a handover indication message from the first base station 511. The handover indication message includes the number of the nth voice service data packet sent by the ue 530 to the first base station 511, where N is a positive integer. The second base station 512 is further configured to send an M +1 th voice service data packet to the user terminal 530, where M is a positive integer.
In some embodiments, the user terminal 530 may be configured to send a handover complete message to the second base station 512. The handover complete message includes the number of the mth voice service data packet transmitted by the first base station 511 to the user terminal 530. The user terminal 530 is further configured to send an (N + 1) th voice service data packet to the second base station 512.
In some embodiments, the second base station 512 may be further configured to send a message containing handover complete information to the first base station 511 after receiving the handover complete message. The first base station 511 is configured to clear the cached voice service data packet after acquiring the handover completion information.
In some embodiments, the plurality of base stations may be further configured to configure the group identity and the high speed mode, respectively. The notification message may further include a high-speed mode configured by each base station.
Fig. 6 is a block diagram illustrating a communication system for voice services according to further embodiments of the present disclosure. The communication system includes a memory 610 and a processor 620. Wherein:
the memory 610 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing the instructions in the embodiments corresponding to fig. 2 and/or fig. 4.
It should be noted that the communication system may include a plurality of memories 610 and a plurality of processors 620, and these memories 610 and processors 620 may be respectively configured in the base station, the core network device, and the user terminal to implement the method in the embodiment corresponding to fig. 2 and/or fig. 4.
In some embodiments, as also shown in fig. 7, the communication system 700 includes a memory 710 and a processor 720. Processor 720 is coupled to memory 710 by BUS 730. The communication system 700 may also be coupled to an external storage device 750 via a storage interface 740 for facilitating retrieval of external data, and may also be coupled to a network or another computer system (not shown) via a network interface 760, which will not be described in detail herein.
In the embodiment, the data instruction is stored in the memory, and the instruction is processed by the processor, so that the packet loss probability of the voice data caused by frequent switching of the user terminal is reduced, the user experience of the voice service of the user running at a high speed is improved, and the network competitiveness is further improved.
It should be noted that the communication system may include a plurality of memories 710, a plurality of processors 720, a plurality of BUS buses 730, a plurality of storage interfaces 740, a plurality of external storage devices 750, and a plurality of network interfaces 760, and these memories 710, processors 720, BUS buses 730, storage interfaces 740, external storage devices 750, and network interfaces 760 may be respectively configured in the base station, the core network device, and the user terminal, so as to implement the method in the embodiment corresponding to fig. 2 and/or fig. 4.
In other embodiments, the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored, the instructions implementing the steps of the method in the embodiments corresponding to fig. 2 and/or fig. 4 when executed by a processor. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. A communication method for voice traffic, comprising:
the method comprises the steps that a plurality of base stations respectively send notification messages to core network equipment, wherein each notification message comprises a group identity configured by each base station; the plurality of base stations include a first base station and a second base station;
under the condition that a user terminal is switched from the first base station to the second base station, the core network equipment determines a base station group, wherein the base station group comprises the second base station and a base station with the same group identity as the second base station;
the core network equipment sends voice service data packets to all base stations in the base station group, wherein the voice service data packets have serial numbers; and
based on the number of the voice service data packet, the second base station and the user terminal mutually transmit the voice service data packet;
when the user terminal is switched out from a base station, the core network equipment starts a timer for the base station, and when the timing time of the timer is greater than a time threshold value, the timing is cleared;
wherein the base station group does not include a base station with a timing time different from 0.
2. The communication method according to claim 1, wherein the step of the second base station and the user terminal transmitting the voice service data packet to each other comprises:
the second base station receives a switching indication message from the first base station, wherein the switching indication message comprises the number of the Nth voice service data packet sent to the first base station by the user terminal, and N is a positive integer;
the user terminal sends a switching completion message to the second base station, wherein the switching completion message comprises the serial number of the Mth voice service data packet sent to the user terminal by the first base station, and M is a positive integer;
the user terminal sends an (N + 1) th voice service data packet to the second base station; and
and the second base station sends the (M + 1) th voice service data packet to the user terminal.
3. The communication method of claim 2, further comprising:
after receiving the switching completion message, the second base station sends a message containing the switching completion message to the first base station; and
and the first base station clears the cached voice service data packet after acquiring the switching completion information.
4. The communication method according to claim 1,
each base station configures one or more group identities.
5. A communication system for voice services, comprising:
the base stations are used for respectively sending notification messages to the core network equipment, each notification message comprises a group identity configured by each base station, and each base station is used for transmitting a voice service data packet to the user terminal based on the number of the voice service data packet; the plurality of base stations include a first base station and a second base station;
the core network device is configured to determine a base station group when a user equipment is handed over from the first base station to the second base station, where the base station group includes the second base station and base stations having a same group identity as the second base station, and is further configured to send a voice service data packet to all base stations in the base station group, where the voice service data packet has a serial number; and
the user terminal is used for transmitting the voice service data packet to the base station based on the number of the voice service data packet;
the core network equipment is further used for starting a timer for the base station when the user terminal is switched out from the base station, and clearing the timer when the timing time of the timer is greater than a time threshold;
wherein the base station group does not include a base station with a timing time different from 0.
6. The communication system of claim 5,
the second base station is configured to receive a handover indication message from the first base station, where the handover indication message includes a number of an nth voice service data packet sent by the ue to the first base station, where N is a positive integer, and send an M +1 th voice service data packet to the ue, where M is a positive integer;
the user terminal is configured to send a handover complete message to the second base station, where the handover complete message includes a number of an mth voice service data packet sent to the user terminal by the first base station, and is configured to send an (N + 1) th voice service data packet to the second base station.
7. The communication system of claim 6,
the second base station is further configured to send a message including handover completion information to the first base station after receiving the handover completion message;
and the first base station is used for clearing the cached voice service data packet after acquiring the switching completion information.
8. The communication system of claim 5,
each base station configures one or more group identities.
9. A communication system for voice services, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-4 based on instructions stored in the memory.
10. A computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of any one of claims 1 to 4.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757141A1 (en) * | 2004-04-27 | 2007-02-28 | Sepura Limited | Mobile communications systems |
| CN1949925A (en) * | 2005-10-10 | 2007-04-18 | 华为技术有限公司 | Smooth switching method for use in LTE technique |
| CN101374324A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method, system and node equipment for implementing district switch by mobile terminal |
| CN101399588A (en) * | 2007-09-24 | 2009-04-01 | 大唐移动通信设备有限公司 | Base station system, baseband unit and processing method and device for base band signal |
| CN103118403A (en) * | 2013-01-25 | 2013-05-22 | 北京久华信信息技术有限公司 | Inter-base station seamless handover method for terminal equipment in wireless communication system |
| WO2018202798A1 (en) * | 2017-05-04 | 2018-11-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | UE GROUPS, UE GROUP MANAGER UEs AND UE GROUP MEMBER UEs |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI382718B (en) * | 2007-08-30 | 2013-01-11 | A method and a system of wireless communication for mobile voice data |
-
2018
- 2018-12-11 CN CN201811508294.3A patent/CN111314866B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757141A1 (en) * | 2004-04-27 | 2007-02-28 | Sepura Limited | Mobile communications systems |
| CN1949925A (en) * | 2005-10-10 | 2007-04-18 | 华为技术有限公司 | Smooth switching method for use in LTE technique |
| CN101374324A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method, system and node equipment for implementing district switch by mobile terminal |
| CN101399588A (en) * | 2007-09-24 | 2009-04-01 | 大唐移动通信设备有限公司 | Base station system, baseband unit and processing method and device for base band signal |
| CN103118403A (en) * | 2013-01-25 | 2013-05-22 | 北京久华信信息技术有限公司 | Inter-base station seamless handover method for terminal equipment in wireless communication system |
| WO2018202798A1 (en) * | 2017-05-04 | 2018-11-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | UE GROUPS, UE GROUP MANAGER UEs AND UE GROUP MEMBER UEs |
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