CN111866749A - Information sending method, information receiving method, terminal and access network equipment - Google Patents

Information sending method, information receiving method, terminal and access network equipment Download PDF

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Publication number
CN111866749A
CN111866749A CN201910355379.0A CN201910355379A CN111866749A CN 111866749 A CN111866749 A CN 111866749A CN 201910355379 A CN201910355379 A CN 201910355379A CN 111866749 A CN111866749 A CN 111866749A
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information
access network
network device
mbms
terminal
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CN111866749B (en
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高有军
江天明
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
China Mobile Xiongan ICT Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
China Mobile Xiongan ICT Co Ltd
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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
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Abstract

The invention provides an information sending method, an information receiving method, a terminal and access network equipment, belonging to the technical field of wireless communication, wherein the information sending method comprises the following steps: receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service issuing; and sending the notification information to the terminal. In the embodiment of the invention, when a plurality of carriers (different carriers correspond to different access network devices) are deployed on the network side and only one or more carriers of the carriers send a specified MBMS service, a terminal which subscribes to the MBMS service and resides on a non-MBMS carrier can receive notification information aiming at the MBMS service, and further can receive service information of the MBMS service.

Description

Information sending method, information receiving method, terminal and access network equipment
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an information sending method, an information receiving method, a terminal, and an access network device.
Background
The notification mechanism is used for the network side to notify the terminal that information carried by an MCCH (Multicast Control Channel) changes (a new MBMS (Multimedia Broadcast Multicast Service, which may also be referred to as a Multimedia Broadcast and Multicast Service) Service starts), and after receiving the MCCH change notification, the terminal listens to the MCCH to acquire new information after the change, so as to acquire new MBMS Service related information.
Referring to fig. 1, the current notification mechanism is to periodically repeat the transmission N (N is the system configuration parameter) times in one MCCH period. The specific time slot for sending the notification needs to be an MBSFN (Multicast Broadcast single frequency Network) subframe, the specific format occupies 8 bits, and the notification is sent through a PDCCH (physical downlink Control Channel).
When multiple carriers are deployed on a network side, but an MBMS service is provided only on one or several carriers (MBMS carriers for short) (for example, MBMS service 1 is transmitted on LTE (Long Term Evolution), and MBMS service 2 is transmitted on 5G NR (5th-Generation New Radio-New air interface), or the MBMS service is transmitted only on 5G NR), it is possible for a UE (MBMS UE for short) that resides in a non-MBMS carrier and has subscribed to the MBMS service to lose the opportunity to receive the MBMS service, thereby reducing user experience.
Disclosure of Invention
In view of this, the present invention provides an information sending method, an information receiving method, a terminal and an access network device, which are used to solve the problem that when a plurality of carriers (different carriers correspond to different access network devices) are deployed on a network side at present and only one or a plurality of carriers send a specified MBMS service, a terminal subscribed with the MBMS service but residing on a non-MBMS carrier may miss a time for receiving the MBMS service.
In order to solve the above technical problem, in a first aspect, the present invention provides an information sending method, applied to a first access network device, including:
receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service issuing;
and sending the notification information to the terminal.
Preferably, the information sending method further includes:
acquiring resource information of the MBMS;
and sending the resource information to the terminal.
Preferably, the information sending method further includes: acquiring time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
the step of sending the notification information to the terminal includes: determining the time for sending the notification information to the terminal according to the time difference information and/or the time synchronization information, and sending the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
and sending the time difference information and/or the time synchronization information to the terminal.
Preferably, the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, where the message of the first access network device includes an SIB message and/or a PMCH message.
Preferably, the information sending method further includes:
sending request information to the second access network device, wherein the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
In a second aspect, the present invention further provides an information sending method, applied to a second access network device, including:
and sending notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service delivery.
Preferably, the information sending method further includes:
acquiring time difference information and/or time synchronization information between the first access network equipment and the first access network equipment;
adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
and issuing the relevant information of the MBMS according to the adjusted time for issuing the relevant information of the MBMS or the adjusted time for issuing all downlink frames, wherein the relevant information comprises the resource information of the MBMS and/or the service information of the MBMS.
In a third aspect, the present invention further provides an information receiving method, applied to a terminal, including:
receiving notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment has MBMS service issuing;
and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
Preferably, the information receiving method further includes:
receiving resource information of the MBMS sent by the first access network equipment;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
Preferably, the information receiving method further includes:
receiving time difference information and/or time synchronization information between the first access network device and the second access network device;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
Determining the time for switching to the second access network equipment to monitor the related information of the MBMS service according to the time difference information and/or the time synchronization information;
and switching to the second access network equipment to monitor the related information of the MBMS according to the determined time.
In a fourth aspect, the present invention further provides a first access network device, including:
the transceiver is used for receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment issues an MBMS service; and sending the notification information to the terminal.
Preferably, the transceiver is further configured to acquire resource information of the MBMS service; and sending the resource information to the terminal.
Preferably, the transceiver is further configured to acquire time difference information and/or time synchronization information between the second access network device and the transceiver;
the access network device further comprises a processor, configured to determine, according to the time difference information and/or the time synchronization information, a time at which the notification information is sent to the terminal, where the transceiver is configured to send the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
The transceiver is further configured to send the time difference information and/or the time synchronization information to the terminal.
Preferably, the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, where the message of the first access network device includes an SIB message and/or a PMCH message.
Preferably, the transceiver is further configured to send request information to the second access network device, where the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
In a fifth aspect, the present invention further provides a second access network device, including:
and the transceiver is used for sending notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment issues the MBMS service.
Preferably, the transceiver is configured to acquire time difference information and/or time synchronization information between the first access network device and the transceiver;
the access network equipment also comprises a processor which is used for adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
The transceiver is configured to issue the relevant information of the MBMS service according to the adjusted time for issuing the relevant information of the MBMS service or the adjusted time for issuing all downlink frames, where the relevant information includes resource information of the MBMS service and/or service information of the MBMS service.
In a sixth aspect, the present invention further provides a terminal, including:
the transceiver is used for receiving notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment issues an MBMS service; and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
Preferably, the transceiver is further configured to receive resource information of the MBMS service sent by the first access network device; and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
Preferably, the transceiver is further configured to receive time difference information and/or time synchronization information between the first access network device and the second access network device;
The terminal further comprises a processor, configured to determine, according to the time difference information and/or the time synchronization information, a time for switching to the second access network device to monitor the relevant information of the MBMS service;
and the transceiver is used for switching to the second access network equipment to monitor the related information of the MBMS according to the determined time.
In a seventh aspect, the present invention further provides an access network device, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements any of the above-described information transmission methods when executing the computer program.
In an eighth aspect, the present invention further provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements any of the above-described information receiving methods when executing the computer program.
In a ninth aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps in any of the above-described information transmission methods, or implements the steps in any of the above-described information reception methods.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the present invention, a plurality of carriers (different carriers correspond to different access network devices) are deployed on a network side, but when an MBMS service is provided only on one or several carriers (MBMS carrier for short), if a terminal subscribed to the MBMS service resides on a non-MBMS carrier (first access network device), an access network device currently accessed by the terminal (i.e., first access network device) is responsible for sending notification information that the MBMS service is about to start on the MBMS carrier (second access network device) to the terminal, so that the terminal can switch to the MBMS carrier to receive related information of the MBMS service, that is, the terminal residing on the non-MBMS carrier but subscribed to the MBMS service can be prevented from missing a chance of receiving the MBMS service.
Drawings
FIG. 1 is a flow chart illustrating a current notification mechanism;
fig. 2 is a flowchart illustrating an information sending method according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a communication architecture to which the embodiment of the present invention is applied;
fig. 4 is a signaling flow diagram illustrating an LTE base station actively querying an NR base station for time difference information and/or time synchronization information according to an embodiment of the present invention;
Fig. 5 is a flowchart illustrating an information sending method according to a second embodiment of the present invention;
fig. 6 is a flowchart illustrating an information receiving method according to a third embodiment of the present invention;
fig. 7 is a flowchart illustrating an information transmission method according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a first access network device in a fifth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a second access network device in a sixth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a terminal in a seventh embodiment of the present invention;
fig. 11 is a schematic structural diagram of a first access network device in an eighth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a second access network device in the ninth embodiment of the present invention;
fig. 13 is a schematic structural diagram of a terminal in the tenth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Referring to fig. 2, fig. 2 is a schematic flow chart of an information sending method according to a first embodiment of the present invention, where the method is applied to a first access network device, and includes the following steps:
step 21: the method comprises the steps that first access network equipment receives notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment issues an MBMS service;
step 22: the first access network device sends the notification information to a terminal, so that the terminal is switched to the second access network device (that is, a carrier of the second access network device) to monitor relevant information of the MBMS service, where the relevant information includes resource information and/or service information of the MBMS service.
The second access network device provides an MBMS carrier (that is, the related information of the MBMS service is carried on the carrier of the second access network device), the first access network device provides a non-MBMS carrier, and the terminal resides on the non-MBMS carrier and cannot receive the related information of the MBMS service on the MBMS carrier.
In the embodiment of the present invention, a plurality of carriers (different carriers correspond to different access network devices) are deployed on a network side, but when an MBMS service is provided only on one or several carriers (MBMS carrier for short), if a terminal subscribed to the MBMS service resides on a non-MBMS carrier (first access network device), an access network device currently accessed by the terminal (i.e., first access network device) is responsible for sending notification information that an MBMS service is about to start on the MBMS carrier (second access network device) to the terminal, so that the terminal can switch to the MBMS carrier to receive related information of the MBMS service, that is, the terminal residing on the non-MBMS carrier but subscribed to the MBMS service can be prevented from missing a chance of receiving the MBMS service.
It should be noted that the first access network device and the second access network device may belong to the same communication system, or may belong to different communication systems, for example, the first access network device may belong to an LTE system (or an NR system), and the second access network device may belong to an NR system (or an LTE system). In addition, the first access network device and the second access network device may belong to the same base station (co-sited deployment) or may belong to different base stations (non-co-sited deployment). For example, referring to fig. 3, fig. 3 is a communication architecture, NSA (Non-Standalone networking), in which an LTE base station (which may be a first access network device) and an NR base station (which may be a second access network device) share an EPC (4G core network), which is applicable to the embodiment of the present invention. The LTE base station and the NR base station may be deployed in a co-site manner or may not be deployed in a co-site manner. Of course, the embodiments of the present invention may also be applied to a communication architecture in which an LTE base station and an NR base station coexist but are independent of each other, that is, an SA (independent networking) communication architecture. The first access network device and the second access network device are not limited to the LTE system and the NR system, and may be other communication systems including an existing communication system and various evolved communication systems that will appear in the future.
In addition, the notification message (i.e., notification) is an 8-bit M-RNTI (multimedia broadcast and multicast service control channel radio network temporary identity) mask. Optionally, the notification message may be transmitted by a PMCH (Physical Multicast channel) of the first access network device.
The above-described information transmission method is exemplified below.
In an optional specific implementation manner, the information sending method further includes:
the first access network equipment acquires the resource information of the MBMS, wherein the resource information is generally carried by MBMS configuration information;
and the first access network equipment sends the resource information to the terminal so that the terminal directly receives the service information of the MBMS on the resource corresponding to the resource information after switching to the second access network equipment.
In the embodiment of the invention, the first access network equipment not only sends notification information for notifying the terminal that the second access network equipment is about to start the MBMS to the terminal, but also sends the resource information of the MBMS to be issued by the second access network equipment to the terminal, so that the terminal can directly receive the service information of the MBMS on the resource indicated by the resource information after being switched to the second access network equipment (namely, a carrier wave of the second access network equipment), and does not need to receive the resource information transmitted on the MCCH first and then receive the service information on the resource indicated by the resource information.
Further optionally, the information sending method further includes: the first access network equipment acquires time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
the step of sending the notification information to the terminal by the first access network device includes: the first access network equipment determines the time for sending the notification information to the terminal according to the time difference information and/or the time synchronization information, and sends the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
the first access network device sends the time difference information and/or the time synchronization information to the terminal, so that the terminal determines a time for monitoring relevant information of the MBMS service according to the time difference information and/or the time synchronization information, specifically, the time for monitoring service information of the MBMS service.
That is, the embodiment of the present invention provides two ways of adjusting the time difference:
the first access network equipment automatically adjusts the time of sending the notification information to the terminal according to the time difference after acquiring the time difference information and/or the time synchronization information, and then sends the notification information to the terminal according to the content specified by the original protocol at the adjusted time.
And after receiving the time difference information and/or the time synchronization information, the first access network equipment issues notification information according to the original protocol on the premise of assuming that the first access network equipment and the second access network equipment are synchronized, and simultaneously issues the time difference information and/or the time synchronization information to the terminal, so that the terminal adjusts the time for receiving the related information of the MBMS service according to the time difference information and/or the time synchronization information. It is assumed here that the time when the first access network device issues the notification information is not too late, so as to avoid that the terminal cannot receive the relevant information of the MBMS service in time. Of course, the first Access network device may also send the time difference information and/or the time synchronization information to the terminal at the beginning, for example, the time difference information and/or the time synchronization information may be sent through a Radio Resource Control (RRC) signaling or a Media Access Control (MAC) signaling, and then send the notification information to the terminal.
In the embodiment of the present invention, because a time difference exists between the first access network device and the second access network device, after the resource information of the MBMS service is acquired, the time for sending the notification information to the terminal needs to be adjusted according to the time difference, or the time difference information and/or the time synchronization information is directly sent to the terminal, so that the terminal automatically adjusts the time for switching to the second access network device to receive the MBMS service information, thereby avoiding the increase of power consumption of the terminal or the missing of the time for receiving the MBMS service information.
Wherein the time synchronization information may be an absolute time. The time information between the access network devices can be acquired according to a GPS (global positioning system), a Beidou system or a V1588 synchronous clock.
Optionally, the information sending method further includes:
sending request information to the second access network device, wherein the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
In the embodiment of the present invention, the time difference information and/or the time synchronization information need to be transferred between two different access network devices, so a time difference IE (information element in signaling message) or an absolute time IE is newly added in the X2 interface.
Specifically, referring to fig. 4, fig. 4 is a process of acquiring time difference information and/or time synchronization information between a first access network device (LTE base station) and a second access network device (NR base station): the first access network equipment (LTE base station) sends a REQUEST message (EN-DC X2 SETUP REQUEST) to the second access network equipment (NR base station), which sends a RESPONSE message (EN-DC X2 SETUP RESPONSE) to the first access network equipment according to the REQUEST message. That is, the first access network device actively requests the second access network device for the time difference information and/or the time synchronization information. The request message, please refer to table 1, carries an NR neighbor Information field (NR neighbor Information), in which MBMS capability Information elements are added, for example, the added part.
TABLE 1
Figure BDA0002045230840000101
The Time Tag is how many unit times after the terminal is switched to the second access network device relative to the first access network device, and the MBMS resource can be monitored, and the resource may include at least one of NR system synchronization information, cell broadcast information, and MBMS service resource. The NR system synchronization information is used for the terminal to access the NR base station and establish a synchronization relationship, and the cell broadcast information is used to indicate the resource specific allocation of the MBMS service.
Optionally, the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, where the message of the first access network device includes an SIB message and/or a PMCH message.
That is to say, in some embodiments of the present invention, the resource Information of the MBMS service is carried by an SIB message (System Information Block) of the first access network device. Specifically, the configuration information of the MBMS service to which the service information is delivered by the second access network device may be sent in an SIB message of an air interface of the first access network device, for example, an SIB22 added message is used to configure resource information of the MBMS service. After receiving the configuration information, the terminal monitors the resources corresponding to the resource information on the carrier of the second access network device according to the time difference between the first access network device and the second access network device, so as to acquire the MBMS service information. In other embodiments of the present invention, the resource information of the MBMS service may be transmitted by a PMCH (Physical Multicast channel) of the first access network device. In other embodiments of the present invention, the resource information of the MBMS service may be simultaneously carried by an SIB message of the first access network device and transmitted by the PMCH of the first access network device.
In the embodiment of the present invention, the PMCH of the first access network device may directly schedule the MCCH of the second access network device, so as to send the resource information of the MBMS service to the terminal.
Referring to fig. 5, fig. 5 is a flowchart illustrating an information sending method according to a second embodiment of the present invention, where the method is applied to a second access network device, and includes the following steps:
step 51: and the second access network equipment sends notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment issues the MBMS.
In the embodiment of the present invention, when an MBMS service starts, the second access network device sends notification information to the first access network device, so that the first access network device can send the notification information to a terminal residing on a carrier of the first access network device, and thus, a terminal that has subscribed to the MBMS service but resides on the carrier of the first access network device can switch to the carrier of the second access network device in time to receive the MBMS service information.
Optionally, the information sending method further includes:
the second access network equipment acquires time difference information and/or time synchronization information with the first access network equipment;
The second access network equipment adjusts the time for transmitting the related information of the MBMS service or adjusts the time for transmitting all downlink frames according to the time difference information and/or the time synchronization information;
and the second access network equipment issues the related information of the MBMS according to the adjusted time for issuing the related information of the MBMS or the adjusted time for issuing all downlink frames, wherein the related information comprises the resource information of the MBMS and/or the service information of the MBMS, so that the terminal is switched to the second access network equipment after receiving the notification information sent by the first access network equipment, can receive the related information of the MBMS in time and has low power consumption.
In the case that the time difference exists between the first access network device and the second access network device, according to the first embodiment, the time at which the first access network device sends the notification information to the terminal may be adjusted, or the time at which the terminal monitors the relevant information of the MBMS service may be adjusted. Also, according to this embodiment, the second access network device may adjust the time for sending the relevant information of the MBMS service or adjust the time for sending all downlink frames. Therefore, the problem that the power consumption of the terminal is increased or the related information of the MBMS service cannot be received in time can be avoided.
Referring to fig. 6, fig. 6 is a schematic flow chart of an information receiving method according to a third embodiment of the present invention, where the method is applied to a terminal, and includes the following steps:
step 61: a terminal receives notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment has MBMS service issuing;
step 62: and the terminal switches to the second access network equipment according to the notification information and monitors the related information of the MBMS, wherein the related information comprises the resource information of the MBMS and/or the service information of the MBMS.
The terminal subscribes to the MBMS service, and the related information of the MBMS service is transmitted only on the carrier of the second access network device, but the terminal currently resides on the carrier of the first access network device.
In the embodiment of the present invention, the terminal may receive, from the carrier of the first access network device, the notification information indicating that the second access network device has the MBMS service to be delivered, so that the terminal may switch to the carrier of the second access network device in time to receive the relevant information of the MBMS service.
The following exemplifies the above-described information receiving method.
Optionally, the information receiving method further includes:
The terminal receives the resource information of the MBMS sent by the first access network equipment;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
and the terminal switches to the second access network equipment according to the notification information and receives the service information of the MBMS on the resource determined according to the resource information.
In the embodiment of the invention, the first access network equipment not only sends the notification information for indicating that the second access network equipment has the MBMS service to the terminal, but also sends the resource information of the MBMS service to the terminal, so that the terminal can directly receive the service information of the MBMS service according to the resource information sent by the first access network equipment after being switched to the carrier wave of the second access network equipment, and does not need to receive the resource information of the MBMS service first.
Further optionally, the information receiving method further includes:
the terminal receives time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
the terminal switches to the second access network device according to the notification information, and the step of monitoring the relevant information of the MBMS service comprises the following steps:
The terminal determines the time for switching to the second access network equipment to monitor the related information of the MBMS service according to the time difference information and/or the time synchronization information;
and the terminal switches to the second access network equipment to monitor the related information of the MBMS according to the determined time.
As another optional implementation manner, if the resource information of the MBMS service sent by the first access network device is received, the information receiving method further includes:
the terminal receives time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
the step of switching to the second access network device according to the notification information and receiving the service information of the MBMS service on the resource determined according to the resource information includes:
the terminal determines the time for switching to the second access network equipment to monitor the service information of the MBMS service according to the time difference information and/or the time synchronization information;
and the terminal switches to the second access network equipment to monitor the service information according to the determined time.
In the embodiment of the present invention, the terminal determines, according to the time difference information and/or the time synchronization information between the first access network device and the second access network device, a time when the terminal is switched to the second access network device (that is, a carrier of the second access network device) to monitor the relevant information of the MBMS service, and switches to the second access network device to monitor the relevant information of the MBMS service according to the determined time. Therefore, the related information of the MBMS sent by the second access network equipment can be received in time, and meanwhile, the low power consumption of the terminal can be ensured.
The embodiments of the present invention provide technical solutions corresponding to the above embodiments and having the same inventive concept, and can achieve the same technical effects.
Referring to fig. 7, fig. 7 is a schematic flowchart of an information transmission method according to a fourth embodiment of the present invention, including the following steps:
step 71, the LTE base station (i.e. 4G eNB) acquires: the system comprises a notification unit for indicating that an NR base station (i.e. 5G NR gnnb) has MBMS service upcoming notification information, MBMS service configuration information, and time difference information and/or time synchronization information between an LTE base station and the NR base station, wherein the configuration information includes resource information of the MBMS service.
And step 72, the LTE base station determines the time for issuing the notification information to the terminal according to the resource information, the time difference information and/or the time synchronization information in step 71, so that the terminal can receive the MBMS service information issued by the NR base station in time and can ensure that the power consumption of the terminal is as low as possible. And the LTE base station transmits notification information and resource information to the terminal according to the determined time.
And 73, the terminal is switched to the NR base station in time according to the notification information, and the MBMS information is monitored on the resource indicated by the resource information.
And step 74, the NR base station sends the MBMS information.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a first access network device according to a fifth embodiment of the present invention, where the first access network device 80 includes:
a transceiver 81, configured to receive notification information of a second access network device, where the notification information is used to indicate that the second access network device has an MBMS service delivered; and sending the notification information to the terminal.
In the embodiment of the present invention, when a plurality of carriers are deployed on a network side, but an MBMS service is provided only on one or several carriers (MBMS carrier for short), if a terminal subscribed to the MBMS service resides on a non-MBMS carrier (first access network device), an access network device currently accessed by the terminal (i.e., the first access network device) is responsible for sending notification information that the MBMS service is about to start on the MBMS carrier (second access network device) to the terminal, so that the terminal can switch to the MBMS carrier to receive related information of the MBMS service, that is, the terminal residing on the non-MBMS carrier but subscribed to the MBMS service can be prevented from missing a chance of receiving the MBMS service.
Optionally, the transceiver 81 is further configured to acquire resource information of the MBMS service; and sending the resource information to the terminal.
Optionally, the transceiver 81 is further configured to acquire time difference information and/or time synchronization information between the second access network device and the second access network device;
the access network device further includes a processor configured to determine a time when the notification information is sent to the terminal according to the time difference information and/or the time synchronization information, and the transceiver 81 is configured to send the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
the transceiver 81 is further configured to transmit the time difference information and/or the time synchronization information to the terminal.
Optionally, the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, where the message of the first access network device includes an SIB message and/or a PMCH message.
Optionally, the transceiver 81 is further configured to send request information to the second access network device, where the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the first embodiment in detail.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a second access network device according to a sixth embodiment of the present invention, where the second access network device 90 includes:
the transceiver 91 is configured to send notification information to the first access network device, where the notification information is used to indicate that the second access network device has an MBMS service delivered.
In the embodiment of the present invention, when an MBMS service starts, the second access network device sends notification information to the first access network device, so that the first access network device can send the notification information to a terminal residing on a carrier of the first access network device, and thus, a terminal that has subscribed to the MBMS service but resides on the carrier of the first access network device can switch to the carrier of the second access network device in time to receive the MBMS service information.
Optionally, the transceiver 91 is configured to acquire time difference information and/or time synchronization information between the first access network device and the second access network device;
the access network equipment also comprises a processor which is used for adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
The transceiver 91 is configured to issue the relevant information of the MBMS service according to the adjusted time for issuing the relevant information of the MBMS service or the adjusted time for issuing all downlink frames, where the relevant information includes resource information of the MBMS service and/or service information of the MBMS service.
The embodiment of the present invention is a product embodiment corresponding to the above method embodiment, and therefore, detailed description is omitted here, and please refer to the second embodiment.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a terminal according to a seventh embodiment of the present invention, where the terminal 100 includes:
the transceiver 101 is configured to receive notification information sent by a first access network device, where the notification information is used to indicate that a second access network device has an MBMS service delivered; and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
In the embodiment of the present invention, the terminal may receive, from the carrier of the first access network device, the notification information indicating that the second access network device has the MBMS service to be delivered, so that the terminal may switch to the carrier of the second access network device in time to receive the relevant information of the MBMS service.
Optionally, the transceiver 101 is further configured to receive resource information of the MBMS service sent by the first access network device; and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
Optionally, the transceiver 101 is further configured to receive time difference information and/or time synchronization information between the first access network device and the second access network device;
the terminal further comprises a processor, configured to determine, according to the time difference information and/or the time synchronization information, a time for switching to the second access network device to monitor the relevant information of the MBMS service;
the transceiver 101 is configured to switch to the second access network device to monitor the related information of the MBMS service according to the determined time.
The embodiment of the present invention is a product embodiment corresponding to the third embodiment of the method, and therefore, detailed description is omitted here, and please refer to the third embodiment.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a first access network device according to an eighth embodiment of the present invention, where the first access network device 110 includes a processor 111, a memory 112, and a computer program stored in the memory 112 and executable on the processor 111; the processor 111, when executing the computer program, implements the steps of:
Receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service issuing;
and sending the notification information to the terminal.
In the embodiment of the present invention, when a plurality of carriers are deployed on a network side, but an MBMS service is provided only on one or several carriers (MBMS carrier for short), if a terminal subscribed to the MBMS service resides on a non-MBMS carrier (first access network device), an access network device currently accessed by the terminal (i.e., the first access network device) is responsible for sending notification information that the MBMS service is about to start on the MBMS carrier (second access network device) to the terminal, so that the terminal can switch to the MBMS carrier to receive related information of the MBMS service, that is, the terminal residing on the non-MBMS carrier but subscribed to the MBMS service can be prevented from missing a chance of receiving the MBMS service.
Optionally, the processor 111 may further implement the following steps when executing the computer program:
acquiring resource information of the MBMS;
and sending the resource information to the terminal.
Optionally, the processor 111 may further implement the following steps when executing the computer program:
acquiring time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
The step of sending the notification information to the terminal includes: determining the time for sending the notification information to the terminal according to the time difference information and/or the time synchronization information, and sending the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
and sending the time difference information and/or the time synchronization information to the terminal.
Optionally, the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, where the message of the first access network device includes an SIB message and/or a PMCH message.
Optionally, the processor 111 may further implement the following steps when executing the computer program:
sending request information to the second access network device, wherein the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
The specific working process of the embodiment of the present invention is the same as that of the first embodiment of the method, and therefore, detailed description is not repeated here, and please refer to the description of the method steps in the first embodiment.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a second access network device according to a ninth embodiment of the present invention, where the second access network device 120 includes a processor 121, a memory 122, and a computer program stored in the memory 122 and executable on the processor 121; the processor 121, when executing the computer program, implements the following steps:
And sending notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service delivery.
In the embodiment of the present invention, when an MBMS service starts, the second access network device sends notification information to the first access network device, so that the first access network device can send the notification information to a terminal residing on a carrier of the first access network device, and thus, a terminal that has subscribed to the MBMS service but resides on the carrier of the first access network device can switch to the carrier of the second access network device in time to receive the MBMS service information.
Optionally, the processor 121, when executing the computer program, may further implement the following steps:
acquiring time difference information and/or time synchronization information between the first access network equipment and the first access network equipment;
adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
and issuing the relevant information of the MBMS according to the adjusted time for issuing the relevant information of the MBMS or the adjusted time for issuing all downlink frames, wherein the relevant information comprises the resource information of the MBMS and/or the service information of the MBMS.
The specific working process of the embodiment of the present invention is the same as that of the second embodiment of the method, and therefore, the detailed description thereof is omitted, and refer to the description of the method steps in the second embodiment.
Referring to fig. 13, fig. 13 is a schematic structural diagram of a terminal according to a tenth embodiment of the present invention, where the terminal 130 includes a processor 131, a memory 132, and a computer program stored in the memory 132 and capable of running on the processor 131; the processor 131, when executing the computer program, implements the following steps:
receiving notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment has MBMS service issuing;
and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
In the embodiment of the present invention, the terminal may receive, from the carrier of the first access network device, the notification information indicating that the second access network device has the MBMS service to be delivered, so that the terminal may switch to the carrier of the second access network device in time to receive the relevant information of the MBMS service.
Optionally, the processor 131, when executing the computer program, may further implement the following steps:
receiving resource information of the MBMS sent by the first access network equipment;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
Optionally, the processor 131, when executing the computer program, may further implement the following steps:
receiving time difference information and/or time synchronization information between the first access network device and the second access network device;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
determining the time for switching to the second access network equipment to monitor the related information of the MBMS service according to the time difference information and/or the time synchronization information;
and switching to the second access network equipment to monitor the related information of the MBMS according to the determined time.
The specific working process of the embodiment of the present invention is the same as that of the third embodiment of the method, and therefore, the detailed description thereof is omitted, and please refer to the description of the method steps in the third embodiment.
An eleventh embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the information sending method according to any one of the first embodiment and the second embodiment, or implements the steps in the information receiving method according to any one of the third embodiment. Please refer to the above description of the method steps in the corresponding embodiments.
The Access network device in the embodiment of the present invention may be a Base Transceiver Station (BTS) in Global System for mobile communications (GSM) or Code Division Multiple Access (CDMA), may also be a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), may also be an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, or a relay Station or Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.
The terminal in the embodiments of the present invention may be a wireless terminal or a wired terminal, and the wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a Terminal (User device or User Equipment), which are not limited herein.
The computer-readable storage media described above, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (23)

1. An information sending method is applied to a first access network device, and is characterized by comprising the following steps:
receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service issuing;
and sending the notification information to the terminal.
2. The method according to claim 1, further comprising:
acquiring resource information of the MBMS;
and sending the resource information to the terminal.
3. The information transmission method according to claim 1 or 2,
further comprising: acquiring time difference information and/or time synchronization information between the first access network equipment and the second access network equipment;
the step of sending the notification information to the terminal includes: determining the time for sending the notification information to the terminal according to the time difference information and/or the time synchronization information, and sending the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
and sending the time difference information and/or the time synchronization information to the terminal.
4. The information sending method according to claim 2, wherein the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, and the message of the first access network device includes an SIB message and/or a PMCH message.
5. The method according to claim 3, further comprising:
sending request information to the second access network device, wherein the request information includes: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
6. An information sending method is applied to a second access network device, and is characterized by comprising the following steps:
and sending notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment has MBMS service delivery.
7. The method for transmitting information according to claim 6, further comprising:
acquiring time difference information and/or time synchronization information between the first access network equipment and the first access network equipment;
adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
and issuing the relevant information of the MBMS according to the adjusted time for issuing the relevant information of the MBMS or the adjusted time for issuing all downlink frames, wherein the relevant information comprises the resource information of the MBMS and/or the service information of the MBMS.
8. An information receiving method applied to a terminal, the method comprising:
receiving notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment has MBMS service issuing;
and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
9. The information receiving method according to claim 8, further comprising:
receiving resource information of the MBMS sent by the first access network equipment;
the step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
10. The information receiving method according to claim 8 or 9, characterized by further comprising:
receiving time difference information and/or time synchronization information between the first access network device and the second access network device;
The step of switching to the second access network device according to the notification information and monitoring the relevant information of the MBMS service includes:
determining the time for switching to the second access network equipment to monitor the related information of the MBMS service according to the time difference information and/or the time synchronization information;
and switching to the second access network equipment to monitor the related information of the MBMS according to the determined time.
11. A first access network device, comprising:
the transceiver is used for receiving notification information of second access network equipment, wherein the notification information is used for indicating that the second access network equipment issues an MBMS service; and sending the notification information to the terminal.
12. The first access network device of claim 11, wherein the transceiver is further configured to acquire resource information of the MBMS service; and sending the resource information to the terminal.
13. The first access network device of claim 11 or 12,
the transceiver is further configured to acquire time difference information and/or time synchronization information between the second access network device and the transceiver;
the access network device further comprises a processor, configured to determine, according to the time difference information and/or the time synchronization information, a time at which the notification information is sent to the terminal, where the transceiver is configured to send the notification information to the terminal at the determined time; alternatively, the first and second electrodes may be,
The transceiver is further configured to send the time difference information and/or the time synchronization information to the terminal.
14. The first access network device of claim 12, wherein the resource information of the MBMS service is transmitted to the terminal by a message of the first access network device, and the message of the first access network device includes an SIB message and/or a PMCH message.
15. The first access network device of claim 13, wherein the transceiver is further configured to send request information to the second access network device, the request information comprising: a field for requesting to acquire MBMS capability information of the second access network device, and/or a field for requesting the time difference information and/or time synchronization information.
16. A second access network device, comprising:
and the transceiver is used for sending notification information to the first access network equipment, wherein the notification information is used for indicating that the second access network equipment issues the MBMS service.
17. The second access network device of claim 16,
the transceiver is used for acquiring time difference information and/or time synchronization information between the transceiver and the first access network equipment;
The access network equipment also comprises a processor which is used for adjusting the time of transmitting the related information of the MBMS service or adjusting the time of transmitting all downlink frames according to the time difference information and/or the time synchronization information;
the transceiver is configured to issue the relevant information of the MBMS service according to the adjusted time for issuing the relevant information of the MBMS service or the adjusted time for issuing all downlink frames, where the relevant information includes resource information of the MBMS service and/or service information of the MBMS service.
18. A terminal, comprising:
the transceiver is used for receiving notification information sent by first access network equipment, wherein the notification information is used for indicating that second access network equipment issues an MBMS service; and switching to the second access network equipment according to the notification information, and monitoring related information of the MBMS, wherein the related information comprises resource information of the MBMS and/or service information of the MBMS.
19. The terminal of claim 18, wherein the transceiver is further configured to receive resource information of the MBMS service sent by the first access network device; and switching to the second access network equipment according to the notification information, and receiving the service information of the MBMS on the resource determined according to the resource information.
20. The terminal according to claim 18 or 19, wherein the transceiver is further configured to receive time difference information and/or time synchronization information between the first access network device and the second access network device;
the terminal further comprises a processor, configured to determine, according to the time difference information and/or the time synchronization information, a time for switching to the second access network device to monitor the relevant information of the MBMS service;
and the transceiver is used for switching to the second access network equipment to monitor the related information of the MBMS according to the determined time.
21. An access network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the information transmission method according to any one of claims 1 to 7.
22. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the computer program, implements the information receiving method according to any one of claims 8 to 10.
23. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps in the information transmitting method according to any one of claims 1 to 7 or the steps in the information receiving method according to any one of claims 8 to 10.
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