WO2015062478A1 - 一种进行通信的方法、***和设备 - Google Patents

一种进行通信的方法、***和设备 Download PDF

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Publication number
WO2015062478A1
WO2015062478A1 PCT/CN2014/089693 CN2014089693W WO2015062478A1 WO 2015062478 A1 WO2015062478 A1 WO 2015062478A1 CN 2014089693 W CN2014089693 W CN 2014089693W WO 2015062478 A1 WO2015062478 A1 WO 2015062478A1
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WIPO (PCT)
Prior art keywords
cell
mbsfn area
user equipment
information
network side
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Application number
PCT/CN2014/089693
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English (en)
French (fr)
Inventor
张惠英
赵亚利
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电信科学技术研究院
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Publication of WO2015062478A1 publication Critical patent/WO2015062478A1/zh

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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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • 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
    • H04W36/0007—Control or signalling for completing the hand-off for multicast or broadcast services, e.g. MBMS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for performing communication.
  • Group communication means that the network transmits data to all User Equipments (UEs) in the group at the same time in a fast and efficient manner.
  • UEs User Equipments
  • LTE Long Term Evolution
  • the LTE system will not be able to maintain the 2/3G network, and the network can be smoothly transitioned to the LTE system.
  • the end-to-end transmission delay requirement of the group communication is 150 ms.
  • the current network architecture reuses the existing Multimedia Broadcast Multicast Service (MBMS) architecture and is existing.
  • MBMS network architecture has been modified to meet this delay requirement.
  • MBMS uses a point-to-multipoint approach to simultaneously send data from the same service source to multiple receivers.
  • MBMS not only expands the types of services in mobile communication networks, but also reduces network operation costs through bearer and resource sharing.
  • the MBMS is implemented by using the MBMS (MBSFN), that is, all cells participating in the MBMS in a certain area are at the same time and The same content is sent on the frequency resource (this area is called the MBSFN area).
  • MBSFN the UE can combine signals from multiple cells for better coverage and transmission quality.
  • the same MBMS service can be transmitted in different MBSFN areas, that is, different MBSFN areas can belong to the same MBMS service area. As shown in FIG. 1, although there are three MBSFN areas, they belong to the same MBMS service area. Different MBSFN areas can overlap and need to be distinguished on radio resources.
  • the use of LTE systems to support public safety group communication is an urgent need.
  • one solution is to use the existing MBMS network architecture to implement group communication functions, but in some scenarios, for example, UE mobile
  • the coverage of the MBSFN area is the result of the multicast/unicast handover.
  • the UE establishes a unicast connection with the target cell after the service of the target cell is failed on the MBMS channel. The delay is long and cannot meet the communication delay requirement.
  • the unicast connection is established with the target cell after the service of the target cell is failed on the MBMS channel, so that the communication delay is increased.
  • the present invention provides a method, a system, and a device for performing communication, which are used to solve the problem that the UE that exists in the prior art moves to the MBSFN area after the UE has failed to perform the service on the MBMS channel.
  • Establishing a unicast connection increases the communication latency.
  • the user equipment receives the traffic carried on the MBMS channel, if the cell handover is performed, it is determined whether the serving cell and the target cell are in the same MBSFN area;
  • the user equipment determines, according to the judgment result, whether to continue receiving the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. If the user equipment is in the process of receiving the service carried on the MBMS channel, if the cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, thereby After the user equipment moves out of the coverage of the MBSFN area, the unicast connection is not established with the target cell after the service of the target cell is failed on the MBMS channel, which reduces the communication delay.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, including:
  • the user equipment determines, according to the notification from the network side device, whether the serving cell and the target cell are in the same MBSFN area.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and further includes:
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, including:
  • the user equipment determines, according to the received cell information in the MBSFN area, whether the serving cell and the target cell are in the same MBSFN area.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in an MBSFN area where the serving cell is located.
  • the method further includes:
  • the user equipment does not receive the cell information in the MBSFN area by using the MCCH of the serving cell, and determines that all neighboring cells of the serving cell are in the same MBSFN area as the serving cell.
  • the user equipment determines, according to the determination result, whether to continue to receive services carried on the MBMS channel, including:
  • the user equipment continues to receive the service carried on the MBMS channel after changing to the target cell.
  • the user equipment determines, according to the determination result, whether to continue to receive services carried on the MBMS channel, including:
  • the user equipment determines whether the target cell is an MBMS cell
  • the target cell has the MBMS service that the user equipment is transmitting, after changing to the target cell, continue to receive the service carried on the MBMS channel;
  • unicast group data transmission is performed with the target cell.
  • the network side device determines cell information in the MBSFN area
  • the network side device sends a notification to the user equipment according to the cell information in the MBSFN area, so that the user equipment determines the serving cell and the target cell if performing cell handover in a service process carried on the MBMS channel. Whether it is in the same MBSFN area, and according to the judgment result, it is determined whether to continue receiving the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. If the user equipment is in the process of receiving the service carried on the MBMS channel, if the cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, thereby After the user equipment moves out of the coverage of the MBSFN area, the unicast connection is not established with the target cell after the service of the target cell is failed on the MBMS channel, which reduces the communication delay.
  • the network side device sends a notification to the user equipment according to the cell information in the MBSFN area, including:
  • the network side device sends the cell information in the MBSFN area to the user equipment by using the MCCH of the cell.
  • the network side device sends the cell information in the MBSFN area to the user equipment by using the MCCH, including:
  • the network side device For each cell, the network side device sends all cell information in the MBSFN area to which the cell belongs by using the MCCH of the cell; or
  • the network side device For each cell, the network side device sends the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs by using the MCCH of the cell.
  • the network side device before the network side device sends the cell information in the MBSFN area to the user equipment by using the MCCH of the cell, the network side device further includes:
  • the network side device determines that the cell and the neighboring cells of the cell are not all in the same MBSFN area.
  • the network side device sends a notification to the user equipment according to the cell information in the MBSFN area, including:
  • the network side device does not send the cell information in the MBSFN area to the user equipment by using the MCCH of the cell, so that the user equipment passes the
  • the MCCH of the cell does not receive the cell information in the MBSFN area, and determines that the cell and the neighboring cell of the cell are all in the same MBSFN area.
  • a determining module configured to determine, in a service process carried on the MBMS channel, whether the serving cell and the target cell are in the same MBSFN area, if performing cell handover;
  • the processing module is configured to determine, according to the judgment result, whether to continue receiving the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. If the user equipment is in the process of receiving the service carried on the MBMS channel, if the cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, thereby After the user equipment moves out of the coverage of the MBSFN area, the unicast connection is not established with the target cell after the service of the target cell is failed on the MBMS channel, which reduces the communication delay.
  • the determining module is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area.
  • the determining module is specifically configured to:
  • the cell information in the MBSFN area from the network side device is received by the MCCH. According to the received cell information in the MBSFN area, it is determined whether the serving cell and the target cell are in the same MBSFN area.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in an MBSFN area where the serving cell is located.
  • the determining module is further configured to:
  • the MCCH in the MBSFN area is not received by the MCCH of the serving cell, it is determined that all neighboring cells of the serving cell are in the same MBSFN area as the serving cell.
  • the processing module is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area, after changing to the target cell, the service carried on the MBMS channel is continuously received.
  • the processing module is specifically configured to:
  • the serving cell and the target cell are not in the same MBSFN area, determine whether the target cell is an MBMS cell;
  • the target cell has the MBMS service that the user equipment is transmitting, after changing to the target cell, continue to receive the service carried on the MBMS channel;
  • unicast group data transmission is performed with the target cell.
  • a determining module configured to determine cell information in an MBSFN area
  • the notification module is configured to send a notification to the user equipment according to the cell information in the MBSFN area, so that the user equipment determines the serving cell and the target cell if performing cell handover in a service process carried on the MBMS channel Whether it is in the same MBSFN area, and according to the judgment result, it is determined whether to continue receiving the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. If the user equipment is in the process of receiving the service carried on the MBMS channel, if the cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, thereby After the user equipment moves out of the coverage of the MBSFN area, the unicast connection is not established with the target cell after the service of the target cell is failed on the MBMS channel, which reduces the communication delay.
  • the notification module is specifically configured to:
  • the cell information in the MBSFN area is sent to the user equipment by using the MCCH of the cell.
  • the notification module is specifically configured to:
  • the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs is transmitted through the MCCH of the cell.
  • the notification module is specifically configured to:
  • the cell information in the MBSFN area is sent to the user equipment by using the MCCH of the cell.
  • the notification module is specifically configured to:
  • the cell information in the MBSFN area is not sent to the user equipment by using the MCCH of the cell, so that the user equipment does not receive the MCCH in the cell.
  • the cell information in the MBSFN area determines that both the cell and the neighboring cell of the cell are in the same MBSFN area.
  • the user equipment is configured to determine whether the serving cell and the target cell are in the same MBSFN area, if the cell handover is performed, and determine whether to continue to receive the bearer on the MBMS channel according to the judgment result.
  • a network side device configured to determine cell information in an MBSFN area, and send a notification to the user equipment according to the cell information in the MBSFN area, so that the user equipment performs a cell in a service process carried on an MBMS channel. If the handover is performed, it is determined whether the serving cell and the target cell are in the same MBSFN area, and according to the determination result, determining whether to continue receiving the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. If the user equipment is in the process of receiving the service carried on the MBMS channel, if the cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, thereby After the user equipment moves out of the coverage of the MBSFN area, the unicast connection is not established with the target cell after the service of the target cell is failed on the MBMS channel, which reduces the communication delay.
  • FIG. 1 is a schematic diagram of an MBSFN area in the background art
  • FIG. 2 is a schematic structural diagram of a system for performing communication according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of a first type of side user equipment in a system for performing communication according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic structural diagram of a first network device in a system for performing communication according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic structural diagram of a second user equipment in a system for performing communication according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural diagram of a second network side device in a system for performing communication according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic flowchart of a method for communication performed by a user equipment according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic flowchart of a method for a network side device to send a notification to a user equipment according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic flowchart of a method for a user equipment to perform communication according to Embodiment 4 of the present invention.
  • FIG. 10 is a schematic flowchart of a method for a user equipment to perform communication according to Embodiment 5 of the present invention.
  • FIG. 11 is a schematic flowchart of a method for a user equipment to communicate according to Embodiment 6 of the present invention.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and determines whether to continue to receive the bearer in the MBMS channel according to the judgment result. On the business. Since the user equipment is receiving the service procedure carried on the MBMS channel If cell handover is performed, it is determined whether to continue to receive the service carried on the MBMS channel according to the judgment result of whether the serving cell and the target cell are in the same MBSFN area, so that after the user equipment moves out of the MBSFN area coverage, it is not necessary to wait for If the service carried by the target cell on the MBMS channel fails, a unicast connection is established with the target cell, which reduces the communication delay.
  • the solution of the embodiment of the present invention can reduce the service transmission delay of the group communication in the case of mobile without changing the existing network architecture, and meet the end-to-end transmission delay requirement of the group communication.
  • the system for performing communication in Embodiment 1 of the present invention includes: a network side device 20 and a user equipment 21.
  • the network side device 20 is configured to determine the cell information in the MBSFN area, and send a notification to the user equipment according to the cell information in the MBSFN area, so that if the user equipment performs cell handover in the service process carried on the MBMS channel, Determining whether the serving cell and the target cell are in the same MBSFN area, and determining whether to continue the service carried on the MBMS channel according to the judgment result;
  • the user equipment 21 is configured to determine, in the service process carried on the MBMS channel, whether the serving cell and the target cell are in the same MBSFN area, and determine whether to continue to receive the bearer on the MBMS channel according to the determination result. Business.
  • the services carried on the MBMS channel include, but are not limited to, one of the following services:
  • the cell information in the embodiment of the present invention is information that can uniquely identify a cell, such as a cell identifier, a cell number corresponding to the cell identifier, and the like.
  • the network side device in the embodiment of the present invention may be a Multi-cell/Multicast Coordination Entity (MCE), or may be a base station (such as a macro base station, a home base station, etc.) or a relay (RN).
  • MCE Multi-cell/Multicast Coordination Entity
  • RN relay
  • the device may also be other network side devices or new network side devices.
  • the network side device to notify the user equipment according to the cell information in the MBSFN area, and several types are listed below.
  • the network side device directly sends the cell information in the MBSFN area to the user equipment through the multicast control channel (MCCH) of the cell.
  • MCCH multicast control channel
  • the network side device sends all the cell information in the MBSFN area to which the cell belongs, such as the cell B and the cell C in the MBSFN area A, and the network side device passes the cell B and the cell respectively.
  • C transmits cell information of cell B and cell C; or
  • the network side device For each cell, the network side device sends the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs, such as the cell B, the cell C, and the cell D in the MBSFN area A, and the neighboring cell of the cell B. If the neighboring cell of the cell C is the cell D and the cell E, the network side device transmits the cell information of the cell B and the cell D through the cell B, and transmits the cell information of the cell C and the cell D through the cell C.
  • Transmitting the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs can save the number of cell information transmitted, thereby saving resources.
  • the MCE may interact with each cell to neighbor cell list information according to the cell information in the MBSFN area.
  • Each cell is located in the same MBSFN.
  • the cell of the area that is, the MBMS information broadcast by the cells from the same MCE, mainly includes the correspondence between the cell index (CellIndex) and the cell identity (CellIdentity) in the neighbor cell list information of each cell, so that only the cell sequence number can be used.
  • the user equipment is notified by the MCCH (the SIB includes the correspondence between the cell number and the cell identifier, and the user equipment can obtain the correspondence by using the SIB information). If the MCE does not interact with the neighbor cell information of each cell, the MCE may directly notify the user equipment of the cell identity of the neighboring cell of each cell through the MCCH.
  • Manner 2 The network side device determines the notification mode according to whether the cell and the neighboring cell of the cell are all in the same MBSFN area.
  • the network side device determines whether the cell and the neighboring cell of the cell are in the same MBSFN area, and if yes, does not send the cell information in the MBSFN area to the user equipment by using the MCCH of the cell, so that The user equipment determines that the cell and the neighboring cell of the cell are in the same MBSFN area by using the cell information in the MBSFN area that is not received by the MCCH of the cell;
  • the network side device sends all the cell information in the MBSFN area to which the cell belongs through the MCCH of the cell. For example, if there is a cell B and a cell C in the MBSFN area A, the network side device sends the cell B and the cell through the cell B and the cell C, respectively.
  • the network side device transmits the cell information of the cell B and the cell D through the cell B, and transmits the cell information of the cell C and the cell D through the cell C.
  • the network side device may adopt an implicit notification manner, that is, the cell information is not sent, so that the user equipment knows that the serving cell and the target cell are in the same MBSFN. In the area, thus saving transmission resources.
  • the MCE may exchange neighbor cell list information with each cell before the user equipment is notified according to the cell information in the MBSFN area, and mainly includes a neighbor cell list of each cell.
  • CellIndex the cell number
  • CellIdentity the cell identifier
  • the MCE may directly notify the user equipment of the cell identity of the neighboring cell of each cell through the MCCH.
  • the cell information carried in the MCCH can be seen in the following content:
  • the serving cell and the target cell are in the same MBSFN area.
  • the user equipment receives the cell information in the MBSFN area from the network side device through the MCCH, it is determined whether the serving cell and the target cell are in the same MBSFN area according to the received cell information in the MBSFN area.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in the MBSFN area in which the serving cell is located.
  • the cell information received by the MCCH of the serving cell has the cell information of the target cell, it can be determined that the serving cell and the target cell are in the same MBSFN area; if not, it can be determined that the serving cell and the target cell are not in the same In the MBSFN area.
  • the MCCH does not receive the cell information, and it can be determined that all the neighboring cells of the serving cell are in the same MBSFN area as the serving cell, that is, the serving cell and the target cell are in the same MBSFN area.
  • the user equipment is changed to the target. After the cell, the service carried on the MBMS channel continues to be received.
  • the change here may be to switch to the target cell or to reselect to the target cell.
  • the user equipment may further determine whether the target cell is an MBMS cell;
  • the target cell has an MBMS service that is being transmitted by the user equipment, after the change to the target cell, the service carried on the MBMS channel is continuously received;
  • unicast group data transmission is performed with the target cell.
  • the user equipment determines, according to the received System Information Block (SIB) of the target cell, whether the target cell is an MBMS cell.
  • SIB System Information Block
  • the user equipment determines the location information of the MCCH of the target cell according to the received system information of the target cell, and receives the MCCH according to the location information. According to the MCCH, it is determined whether the target cell has the MBMS service that the user equipment is transmitting.
  • the first type of user equipment in the system for communicating in the first embodiment of the present invention includes:
  • the determining module 310 is configured to determine, in a service process that is carried on the MBMS channel, whether the serving cell and the target cell are in the same MBSFN area, if performing cell handover;
  • the processing module 320 is configured to determine, according to the determination result, whether to continue receiving the service carried on the MBMS channel.
  • the determining module 310 is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area.
  • the determining module 310 is specifically configured to:
  • the cell information in the MBSFN area from the network side device is received by the MCCH; and according to the cell information in the received MBSFN area, it is determined whether the serving cell and the target cell are in the same MBSFN area.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in the MBSFN area in which the serving cell is located.
  • the determining module 310 is further configured to:
  • the MCCH of the serving cell does not receive the cell information in the MBSFN area, it is determined that all neighboring cells of the serving cell are in the same MBSFN area as the serving cell.
  • the processing module 320 is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area, after changing to the target cell, the service carried on the MBMS channel is continuously received.
  • the processing module 320 is specifically configured to:
  • the serving cell and the target cell are not in the same MBSFN area, determine whether the target cell is an MBMS cell;
  • the target cell has an MBMS service that is being transmitted by the user equipment, after the change to the target cell, the service carried on the MBMS channel is continuously received;
  • unicast group data transmission is performed with the target cell.
  • the first network side device in the system for communicating in the first embodiment of the present invention includes:
  • a determining module 410 configured to determine cell information in an MBSFN area
  • the notification module 420 is configured to send a notification to the user equipment according to the cell information in the MBSFN area, so that if the user equipment performs cell handover in the service process carried on the MBMS channel, it is determined whether the serving cell and the target cell are in the same In an MBSFN area, and according to the judgment result, it is determined whether to continue receiving the service carried on the MBMS channel.
  • the notification module 420 is specifically configured to:
  • the cell information in the MBSFN area is transmitted to the user equipment through the MCCH of the cell.
  • the notification module 420 is specifically configured to:
  • the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs is transmitted through the MCCH of the cell.
  • the notification module 420 is specifically configured to:
  • the cell information in the MBSFN area is sent to the user equipment by using the MCCH of the cell.
  • the notification module 420 is specifically configured to:
  • the cell information in the MBSFN area is not sent to the user equipment by the MCCH of the cell, so that the user equipment does not receive the cell in the MBSFN area by using the MCCH in the cell.
  • the information determines that the cell and the neighboring cells of the cell are both in the same MBSFN area.
  • the second type of user equipment in the system for communicating in the first embodiment of the present invention includes:
  • the processor 500 is configured to determine whether the serving cell and the target cell are in the same MBSFN area, if the cell handover is performed in the service process that is received by the receiver 510 on the MBMS channel, and determine whether to continue to pass the determination according to the judgment result.
  • Receiver 510 receives the traffic carried on the MBMS channel;
  • the receiver 510 is configured to receive and transmit data under the control of the processor 500.
  • the determining module 310 is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area.
  • the processor 500 is specifically configured to:
  • the control receiver 510 receives the cell information in the MBSFN area from the network side device through the MCCH, and determines whether the serving cell and the target cell are in the same MBSFN area according to the received cell information in the MBSFN area. in.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in the MBSFN area in which the serving cell is located.
  • the processor 500 is further configured to:
  • the MCCH of the serving cell does not receive the cell information in the MBSFN area, it is determined that all neighboring cells of the serving cell are in the same MBSFN area as the serving cell.
  • the processing module 320 is specifically configured to:
  • the serving cell and the target cell are in the same MBSFN area, after changing to the target cell, the service carried on the MBMS channel is continuously received by the receiver 510.
  • the processing module 320 is specifically configured to:
  • the serving cell and the target cell are not in the same MBSFN area, determine whether the target cell is an MBMS cell;
  • the target cell has the MBMS service that the user equipment is transmitting, after the change to the target cell, the service carried on the MBMS channel is continuously received by the receiver 510;
  • unicast group data transmission is performed by the receiver 510 and the target cell.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 510 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 500 when performing operations.
  • the second network side device in the system for communicating in the first embodiment of the present invention includes:
  • the processor 600 is configured to determine cell information in the MBSFN area, and control, according to the cell information in the MBSFN area, the receiver 610 to send a notification to the user equipment, so that the user equipment is carried on the MBMS channel of the multimedia broadcast multicast service. If the cell handover is performed in the process, it is determined whether the serving cell and the target cell are in the same MBSFN area, and determining, according to the determination result, whether to continue receiving the service carried on the MBMS channel;
  • the receiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the processor 600 is specifically configured to:
  • the control receiver 610 transmits the cell information in the MBSFN area to the user equipment through the MCCH of the cell.
  • the processor 600 is specifically configured to:
  • control receiver 610 For each cell, the control receiver 610 transmits all cell information in the MBSFN area to which the cell belongs through the MCCH of the cell; or
  • control receiver 610 For each cell, the control receiver 610 transmits the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs by using the MCCH of the cell.
  • the processor 600 is specifically configured to:
  • control receiver 610 After determining that the cell and the neighboring cell of the cell are not all in the same MBSFN area, the control receiver 610 sends the cell information in the MBSFN area to the user equipment by using the MCCH of the cell.
  • the processor 600 is specifically configured to:
  • the control receiver 610 does not send the cell information in the MBSFN area to the user equipment through the MCCH of the cell, so that the user equipment does not receive the MBSFN through the MCCH of the cell.
  • the cell information in the area determines that both the cell and the neighboring cell of the cell are in the same MBSFN area.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • the embodiment of the present invention further provides a method for the network side device to notify the user equipment and a method for the user equipment to communicate, and the device corresponding to the method is a device in the system for communicating according to the embodiment of the present invention, and the method
  • the principle of solving the problem is similar to the system, so the implementation of the method can be referred to the implementation of the system, and the repetition will not be repeated.
  • the method for performing communication by a user equipment according to Embodiment 2 of the present invention includes:
  • Step 701 The user equipment, in receiving the service procedure carried on the MBMS channel, determines whether the serving cell and the target cell are in the same MBSFN area, if performing cell handover;
  • Step 702 The user equipment determines, according to the judgment result, whether to continue to receive the service carried on the MBMS channel.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, including:
  • the user equipment determines, according to the notification from the network side device, whether the serving cell and the target cell are in the same MBSFN area.
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, and further includes:
  • the user equipment receives cell information in the MBSFN area from the network side device through the MCCH;
  • the user equipment determines whether the serving cell and the target cell are in the same MBSFN area, including:
  • the user equipment determines, according to the received cell information in the MBSFN area, whether the serving cell and the target cell are in the same MBSFN area.
  • the cell information in the MBSFN area is cell information of all cells in the MBSFN area where the serving cell is located; or
  • the cell information in the MBSFN area is cell information of a cell adjacent to the serving cell in the MBSFN area in which the serving cell is located.
  • the method of the embodiment of the present invention further includes:
  • the user equipment does not receive the cell information in the MBSFN area through the MCCH of the serving cell, and determines that all neighboring cells of the serving cell are in the same MBSFN area as the serving cell.
  • the user equipment determines, according to the determination result, whether to continue to receive the service carried on the MBMS channel, including:
  • the user equipment continues to receive the service carried on the MBMS channel after changing to the target cell.
  • the user equipment determines, according to the determination result, whether to continue to receive the service carried on the MBMS channel, including:
  • the user equipment determines whether the target cell is an MBMS cell
  • the target cell has an MBMS service that is being transmitted by the user equipment, after the change to the target cell, the service carried on the MBMS channel is continuously received;
  • unicast group data transmission is performed with the target cell.
  • the method for the network side device to send a notification to the user equipment includes:
  • Step 801 The network side device determines cell information in the MBSFN area.
  • Step 802 The network side device sends a notification to the user equipment according to the cell information in the MBSFN area, so that if the user equipment performs cell handover in the service process carried on the MBMS channel, it is determined whether the serving cell and the target cell are in the same MBSFN. In the area, according to the judgment result, it is determined whether to continue receiving the service carried on the MBMS channel.
  • the network side device notifies the user equipment, including:
  • the network side device sends the cell information in the MBSFN area to the user equipment through the MCCH of the cell.
  • the network side device sends the cell information in the MBSFN area to the user equipment by using the MCCH, including:
  • the network side device For each cell, the network side device sends the location in the MBSFN area to which the cell belongs through the MCCH of the cell. Have cell information; or
  • the network side device For each cell, the network side device transmits the cell information of the cell adjacent to the cell in the MBSFN area to which the cell belongs by using the MCCH of the cell.
  • the network side device before the network side device sends the cell information in the MBSFN area to the user equipment by using the MCCH of the cell, the network side device further includes:
  • the network side device determines that the neighboring cells of the cell and the cell are not all in the same MBSFN area.
  • the network side device sends a notification to the user equipment, including:
  • the network side device does not send the cell information in the MBSFN area to the user equipment through the MCCH of the cell, so that the user equipment does not receive the MBSFN area by using the MCCH in the cell.
  • the cell information in the middle determines that the cell and the neighboring cell of the cell are both in the same MBSFN area.
  • the method for performing communication by a user equipment according to Embodiment 4 of the present invention includes:
  • Steps 910 to 920 The MCE includes the cell list information in the MBSFN Area in the MCCH addressed to each eNB (evolved base station), and broadcasts to the UE in the MBSFN Area.
  • Step 930 The UE receives the MBMS/group communication service of the current serving cell (source eNB).
  • Step 940 The UE finds that the signal of the current serving cell is weak (for example, below a certain threshold), and the signal of the neighboring cell is strong (for example, higher than a certain threshold).
  • Step 950 The UE determines, by using the cell list information of the MBSFN Area carried in the received MCCH, that the target cell (target eNB) and the current serving cell (source eNB) belong to the same MBSFN Area.
  • Step 960 The UE directly switches/reselects to the target cell to continue receiving the MBMS/group communication service.
  • a method for a user equipment to communicate according to Embodiment 5 of the present invention includes:
  • Step 1010 to step 1020 The MCE includes the cell list information in the MBSFN Area in the MCCH addressed to each eNB, and broadcasts to the UE in the MBSFN Area.
  • Step 1030 The UE receives the MBMS/group communication service of the current serving cell (source eNB).
  • Step 1040 The UE finds that the signal of the current serving cell is weak (for example, below a certain threshold), and the signal of the neighboring cell is strong (for example, higher than a certain threshold).
  • Step 1050 The UE determines, by using the cell list information of the MBSFN Area carried in the received MCCH, that the target cell (target eNB) and the current serving cell (source eNB) do not belong to the same MBSFN Area.
  • Step 1060 The UE determines, according to the read SIB of the target cell, that the target cell is a non-MBMS cell, and determines that an RRC connection needs to be established with the target cell for unicast transmission.
  • Step 1070 The UE establishes an RRC connection with the target cell.
  • Step 1080 The UE performs unicast group data transmission with the target cell.
  • the UE establishes an MBMS connection with other MBSFN Areas with the target cell.
  • the method for the user equipment to communicate according to Embodiment 6 of the present invention includes:
  • Steps 1110 to 1120, MCE1 and MCE2 respectively include the cell list information in the MBSFN Area in the MCCH addressed to each eNB, and broadcast to the UE in the MBSFN Area.
  • Step 1130 The UE receives an MBMS/group communication service of a current serving cell (source eNB).
  • Step 1140 The UE finds that the signal of the current serving cell is weak (for example, below a certain threshold), and the signal of the neighboring cell is strong (for example, above a certain threshold).
  • Step 1150 The UE determines, by using the cell list information of the MBSFN Area carried in the received MCCH, that the target cell (target eNB) and the current serving cell (source eNB) do not belong to the same MBSFN Area.
  • Step 1160 The UE determines, according to the read SIB of the target cell, that the target cell is an MBMS cell, and determines a handover/reselection time according to the received MCCH transmission location information of the target cell (the determining time can reduce the service interruption time, and the UE directly The cell conversion is performed at the time when the target cell MCCH can be received, and the service of the original cell is continued to be received before.
  • Step 1170 The UE receives the MCCH of the target cell according to the determined MCCH transmission location information, determines whether there is a group communication service that the UE needs to receive according to the information in the MCCH, and if yes, uses the MBMS to receive the group communication service, otherwise, establishes a single with the target cell. Broadcast connection.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the device is implemented in a flow or a flow or a block diagram of a block or multiple The function specified in the box.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例涉及无线通信技术领域，特别涉及一种进行通信的方法、***和设备，用以解决现有技术中存在的UE移动出MBSFN区域覆盖范围后，需要在目标小区承载在MBMS信道上的业务失败后，才与目标小区建立单播连接，使得通信时延增加的问题。本发明实施例的方法包括：用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。采用本发明实施例在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。

Description

一种进行通信的方法、***和设备
本申请要求在2013年10月30日提交中国专利局、申请号为201310529055.7、发明名称为“一种进行通信的方法、***和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，特别涉及一种进行通信的方法、***和设备。
背景技术
组通信就是网络以快速有效的方式同时向组内所有用户设备(User Equipment，UE)数据传输。随着LTE(Long Term Evolution，长期演进)技术成熟，如果运营商可利用LTE***提供组通信功能，当LTE***成熟后，将可以不再维护2/3G网络，可以实现网络平滑过渡到LTE***。对于LTE***，组通信端到端传输时延要求为150ms，为了满足该时延要求，目前采用的网络架构重用现有多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)架构，并在现有MBMS网络架构上做一定修改以满足该时延要求。
MBMS采用“点到多点”的方式，将同一个业务源发出的数据同时发送给多个接收端。MBMS不仅扩展了移动通信网络中的业务种类，而且能够通过承载和资源共享，降低网络运营成本。在时分长期演进(Time Division Long Term Evolution，TD-LTE)中采用MBMS单频网(Multimedia Broadcast multicast service Single Frequency Network，MBSFN)实现MBMS，即某一区域内参与MBMS的所有小区在相同的时间和频率资源上发送相同的内容(这个区域称为MBSFN区域)。利用MBSFN技术，UE能够将来自多个小区的信号进行合并处理，从而获得更好的覆盖范围和传输质量。
不同MBSFN区域内可以传输相同的MBMS业务，即不同的MBSFN区域可以属于同一MBMS业务区域。如图1所示，其中虽然存在三个MBSFN区域，但属于同一MBMS业务区域。不同MBSFN区域之间可以交叠，需要在无线资源上进行区分。
目前利用LTE***支持公共安全组通信是一个比较迫切的需求，而为了满足这个需求，一种解决方案就是利用现有的MBMS网络架构实现组通信的功能，但在一些场景下，例如，UE移动出MBSFN区域覆盖范围，导致多播(Multicast)/单播(Unicast)切换，现有***中，UE在目标小区承载在MBMS信道上的业务失败后，才与目标小区建立单播连接，这中间的时延较长，无法满足通信时延要求。
综上所述，目前UE移动出MBSFN区域覆盖范围后，需要在目标小区承载在MBMS信道上的业务失败后，才与目标小区建立单播连接，使得通信时延增加。
发明内容
本发明提供一种进行通信的方法、***和设备，用以解决现有技术中存在的UE移动出MBSFN区域覆盖范围后，需要在目标小区承载在MBMS信道上的业务失败后，才与目标小区建立单播连接，使得通信时延增加的问题。
本发明实施例提供的一种进行通信的方法，包括：
用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；
所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
较佳地，所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
所述用户设备根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，还包括：
所述用户设备通过MCCH接收来自网络侧设备的MBSFN区域中的小区信息；
所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
所述用户设备根据收到的所述MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中所有小区的小区信息；或
所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中与所述服务小区相邻的小区的小区信息。
较佳地，所述方法还包括：
所述用户设备通过所述服务小区的MCCH未接收到所述MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
较佳地，所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
若服务小区和目标小区在同一个MBSFN区域中，所述用户设备在变更到所述目标小区后，继续接收承载在MBMS信道上的业务。
较佳地，所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
若服务小区和目标小区不在同一个MBSFN区域中，所述用户设备判断目标小区是否是MBMS小区；
如果是，且目标小区有所述用户设备正在传输的MBMS业务，则在变更到所述目标小区后，继续接收承载在MBMS信道上的业务；
否则，与所述目标小区进行单播组数据传输。
本发明实施例提供的另一种进行通信的方法，包括：
网络侧设备确定MBSFN区域中的小区信息；
所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
较佳地，所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，包括：
所述网络侧设备通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息。
较佳地，所述网络侧设备通过MCCH向所述用户设备发送MBSFN区域中的小区信息，包括：
针对每个小区，所述网络侧设备通过所述小区的MCCH，发送所述小区所属的MBSFN区域中的所有小区信息；或
针对每个小区，所述网络侧设备通过所述小区的MCCH，发送所述小区所属的MBSFN区域中与所述小区相邻的小区的小区信息。
较佳地，所述网络侧设备通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息之前，还包括：
所述网络侧设备确定所述小区和所述小区的邻区不都在同一个MBSFN区域中。
较佳地，所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，包括：
若所述小区和所述小区的邻区都在同一个MBSFN区域中，所述网络侧设备不通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
本发明实施例提供的一种进行通信的用户设备，包括：
判断模块，用于在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；
处理模块，用于根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
较佳地，所述判断模块具体用于：
根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，所述判断模块具体用于：
通过MCCH接收来自网络侧设备的MBSFN区域中的小区信息；根据收到的所述MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中所有小区的小区信息；或
所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中与所述服务小区相邻的小区的小区信息。
较佳地，所述判断模块还用于：
通过所述服务小区的MCCH未接收到所述MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
较佳地，所述处理模块具体用于：
若服务小区和目标小区在同一个MBSFN区域中，在变更到所述目标小区后，继续接收承载在MBMS信道上的业务。
较佳地，所述处理模块具体用于：
若服务小区和目标小区不在同一个MBSFN区域中，判断目标小区是否是MBMS小区；
如果是，且目标小区有所述用户设备正在传输的MBMS业务，则在变更到所述目标小区后，继续接收承载在MBMS信道上的业务；
否则，与所述目标小区进行单播组数据传输。
本发明实施例提供的一种进行通信的网络侧设备，包括：
确定模块，用于确定MBSFN区域中的小区信息；
通知模块，用于根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
较佳地，所述通知模块具体用于：
通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息。
较佳地，所述通知模块具体用于：
针对每个小区，通过所述小区的MCCH，发送所述小区所属的MBSFN区域中的所有小区信息；或
针对每个小区，通过所述小区的MCCH，发送所述小区所属的MBSFN区域中与所述小区相邻的小区的小区信息。
较佳地，所述通知模块具体用于：
确定所述小区和所述小区的邻区不都在同一个MBSFN区域中后，通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息
较佳地，所述通知模块具体用于：
若所述小区和所述小区的邻区都在同一个MBSFN区域中，不通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
本发明实施例提供的一种进行通信的***，包括：
用户设备，用于在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务；
网络侧设备，用于确定MBSFN区域中的小区信息；根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
附图说明
图1为背景技术中MBSFN区域示意图；
图2为本发明实施例一提供的进行通信的***的结构示意图；
图3为本发明实施例一提供的进行通信的***中的第一种侧用户设备的结构示意图；
图4为本发明实施例一提供的进行通信的***中的第一种网络设备的结构示意图；
图5为本发明实施例一提供的进行通信的***中的第二种用户设备的结构示意图；
图6为本发明实施例一提供的进行通信的***中的第二种网络侧设备的结构示意图；
图7为本发明实施例二提供的用户设备进行通信的方法流程示意图；
图8为本发明实施例三提供的网络侧设备向用户设备发送通知的方法流程示意图；
图9为本发明实施例四提供的用户设备进行通信的方法流程示意图；
图10为本发明实施例五提供的用户设备进行通信的方法流程示意图；
图11为本发明实施例六提供的用户设备进行通信的方法流程示意图。
具体实施方式
本发明实施例用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务。由于用户设备在接收承载在MBMS信道上的业务过程 中，若进行小区切换，根据服务小区和目标小区是否在同一个MBSFN区域的判断结果，确定是否继续接收承载在MBMS信道上的业务，从而在用户设备移动出MBSFN区域覆盖范围后，不用等到在目标小区承载在MBMS信道上的业务失败，才与目标小区建立单播连接，减少了通信时延。
采用本发明实施例的方案在不改变现有网络架构的情况下，可以减小组通信在移动的情况下的业务传输时延，满足组通信端到端传输时延要求。
如图2所示，本发明实施例一中进行通信的***包括：网络侧设备20和用户设备21。
网络侧设备20，用于确定MBSFN区域中的小区信息，根据MBSFN区域中的小区信息向所述用户设备发送通知，以使用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续承载在MBMS信道上的业务；
用户设备21，用于在承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
其中，承载在MBMS信道上的业务包括但不限于下列业务中的一种：
MBMS业务和组通信业务。
本发明实施例的小区信息是能够唯一标识小区的信息，比如小区标识、小区标识对应的小区序号等。
本发明实施例的网络侧设备可以是多小区/多播协调实体(Multi-cell/multicast Coordination Entity，MCE)，还可以是基站(比如宏基站，家庭基站等)，也可以是中继(RN)设备，还可以是其它网络侧设备或新的网络侧设备。
其中，网络侧设备根据MBSFN区域中的小区信息通知用户设备的方式有很多种，下面列举几种。
方式一、网络侧设备通过小区的多播控制信道(Multicast Control Channel，MCCH)，直接向用户设备发送MBSFN区域中的小区信息。
具体的，针对每个小区，网络侧设备通过小区的MCCH，发送小区所属的MBSFN区域中的所有小区信息，比如MBSFN区域A中有小区B和小区C，则网络侧设备分别通过小区B和小区C发送小区B和小区C的小区信息；或
针对每个小区，网络侧设备通过小区的MCCH，发送小区所属的MBSFN区域中与小区相邻的小区的小区信息，比如MBSFN区域A中有小区B、小区C和小区D，小区B的邻小区是小区D和小区E，小区C的邻小区是小区D和小区E，则则网络侧设备通过小区B发送小区B和小区D的小区信息，通过小区C发送小区C和小区D的小区信息。
发送小区所属的MBSFN区域中与小区相邻的小区的小区信息的方式相比发送小区所 属的MBSFN区域中的所有小区信息的方式，可以节省传递的小区信息的数量，从而节省资源。
较佳地，如果本发明实施例的网络侧设备是MCE，则根据MBSFN区域中的小区信息通知用户设备之前，MCE可以与每个小区交互邻小区列表信息(这里的每个小区是位于相同MBSFN区域的小区，也就是这些小区广播的MBMS信息来自同一个MCE)，主要包含每个小区的邻小区列表信息中小区序号(CellIndex)与小区标识(CellIdentity)的对应关系，这样可以只将小区序号通过MCCH通知用户设备(SIB包含小区序号与小区标识的对应关系，用户设备可以通过SIB信息就可以获得该对应关系)。如果MCE没有与每个小区的邻小区信息交互，MCE也可以直接将每个小区的邻小区的小区标识通过MCCH通知用户设备。
方式二、网络侧设备根据小区和小区的邻区是否都在同一个MBSFN区域中，确定通知方式。
具体的，针对一个小区，网络侧设备判断该小区和该小区的邻区是否都在同一个MBSFN区域中，如果是，则不通过小区的MCCH向用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中；
否则，网络侧设备通过小区的MCCH，发送小区所属的MBSFN区域中的所有小区信息，比如MBSFN区域A中有小区B和小区C，则网络侧设备分别通过小区B和小区C发送小区B和小区C的小区信息；或通过小区的MCCH，发送小区所属的MBSFN区域中与小区相邻的小区的小区信息，比如MBSFN区域A中有小区B、小区C和小区D，小区B的邻小区是小区D和小区E，小区C的邻小区是小区D和小区E，则则网络侧设备通过小区B发送小区B和小区D的小区信息，通过小区C发送小区C和小区D的小区信息。
其中，如果小区和小区的邻区是否都在同一个MBSFN区域中，则网络侧设备可以采用隐式的通知方式，即不发送小区信息，这样用户设备就知道服务小区和目标小区在同一个MBSFN区域中，从而节省传输资源。
发送小区所属的MBSFN区域中与小区相邻的小区的小区信息的方式相比发送小区所属的MBSFN区域中的所有小区信息的方式，可以节省传递的小区信息的数量，从而节省资源。
较佳地，如果本发明实施例的网络侧设备是MCE，则根据MBSFN区域中的小区信息通知用户设备之前，MCE可以与每个小区交互邻小区列表信息，主要包含每个小区的邻小区列表信息中小区序号(CellIndex)与小区标识(CellIdentity)的对应关系，这样可以只将小区序号通过MCCH通知用户设备。如果MCE没有与每个小区的邻小区信息交互，MCE也可以直接将每个小区的邻小区的小区标识通过MCCH通知用户设备。
MCCH中承载的小区信息可以参见下面内容：
Figure PCTCN2014089693-appb-000001
对于用户设备，根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
具体的，如果用户设备通过MCCH接收到来自网络侧设备的MBSFN区域中的小区信息，则根据收到的MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，MBSFN区域中的小区信息为服务小区所在的MBSFN区域中所有小区的小区信息；或
MBSFN区域中的小区信息为服务小区所在的MBSFN区域中与服务小区相邻的小区的小区信息。
比如，通过服务小区的MCCH收到的小区信息中有目标小区的小区信息，就可以确定服务小区和目标小区在同一个MBSFN区域中；相反如果没有，就可以确定服务小区和目标小区不在同一个MBSFN区域中。
如果采用上述方式二通知，则通过MCCH没有收到小区信息，就可以确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域，即确定服务小区和目标小区在同一个MBSFN区域中。
在实施中，若服务小区和目标小区在同一个MBSFN区域中，用户设备在变更到目标 小区后，继续接收承载在MBMS信道上的业务。
这里的变更可以是切换到目标小区，也可以是重选到目标小区。
较佳地，若服务小区和目标小区不在同一个MBSFN区域中，用户设备还可以进一步判断目标小区是否是MBMS小区；
如果是，且目标小区有用户设备正在传输的MBMS业务，则在变更到目标小区后，继续接收承载在MBMS信道上的业务；
否则，与目标小区进行单播组数据传输。
在实施中，用户设备根据收到的目标小区的***信息块(System Information Block，SIB)，判断目标小区是否是MBMS小区。
在实施中，用户设备根据收到的目标小区的***信息确定目标小区的MCCH的位置信息，并根据位置信息接收MCCH；根据MCCH，判断目标小区是否有用户设备正在传输的MBMS业务。
如图3所示，本发明实施例一中进行通信的***中的第一种用户设备包括：
判断模块310，用于在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；
处理模块320，用于根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
较佳地，判断模块310具体用于：
根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，判断模块310具体用于：
通过MCCH接收来自网络侧设备的MBSFN区域中的小区信息；根据收到的MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，MBSFN区域中的小区信息为服务小区所在的MBSFN区域中所有小区的小区信息；或
MBSFN区域中的小区信息为服务小区所在的MBSFN区域中与服务小区相邻的小区的小区信息。
较佳地，判断模块310还用于：
通过服务小区的MCCH未接收到MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
较佳地，处理模块320具体用于：
若服务小区和目标小区在同一个MBSFN区域中，在变更到目标小区后，继续接收承载在MBMS信道上的业务。
较佳地，处理模块320具体用于：
若服务小区和目标小区不在同一个MBSFN区域中，判断目标小区是否是MBMS小区；
如果是，且目标小区有用户设备正在传输的MBMS业务，则在变更到目标小区后，继续接收承载在MBMS信道上的业务；
否则，与目标小区进行单播组数据传输。
如图4所示，本发明实施例一中进行通信的***中的第一种网络侧设备包括：
确定模块410，用于确定MBSFN区域中的小区信息；
通知模块420，用于根据MBSFN区域中的小区信息向所述用户设备发送通知，以使用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
较佳地，通知模块420具体用于：
通过小区的MCCH向用户设备发送MBSFN区域中的小区信息。
较佳地，通知模块420具体用于：
针对每个小区，通过小区的MCCH，发送小区所属的MBSFN区域中的所有小区信息；或
针对每个小区，通过小区的MCCH，发送小区所属的MBSFN区域中与小区相邻的小区的小区信息。
较佳地，通知模块420具体用于：
确定小区和小区的邻区不都在同一个MBSFN区域中后，通过小区的MCCH向用户设备发送MBSFN区域中的小区信息
较佳地，通知模块420具体用于：
若小区和小区的邻区都在同一个MBSFN区域中，不通过小区的MCCH向用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
如图5所示，本发明实施例一中进行通信的***中的第二种用户设备包括：
处理器500，用于在通过接收机510接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；根据判断结果，确定是否继续通过接收机510接收承载在MBMS信道上的业务；
接收机510，用于在处理器500的控制下接收和发送数据。
较佳地，判断模块310具体用于：
根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，处理器500具体用于：
控制接收机510通过MCCH接收来自网络侧设备的MBSFN区域中的小区信息；根据收到的MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域 中。
较佳地，MBSFN区域中的小区信息为服务小区所在的MBSFN区域中所有小区的小区信息；或
MBSFN区域中的小区信息为服务小区所在的MBSFN区域中与服务小区相邻的小区的小区信息。
较佳地，处理器500还用于：
通过服务小区的MCCH未接收到MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
较佳地，处理模块320具体用于：
若服务小区和目标小区在同一个MBSFN区域中，在变更到目标小区后，继续通过接收机510接收承载在MBMS信道上的业务。
较佳地，处理模块320具体用于：
若服务小区和目标小区不在同一个MBSFN区域中，判断目标小区是否是MBMS小区；
如果是，且目标小区有用户设备正在传输的MBMS业务，则在变更到目标小区后，继续通过接收机510接收承载在MBMS信道上的业务；
否则，通过接收机510与目标小区进行单播组数据传输。
其中，在图5中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理，存储器520可以存储处理器500在执行操作时所使用的数据。
处理器500负责管理总线架构和通常的处理，存储器620可以存储处理器500在执行操作时所使用的数据。
如图6所示，本发明实施例一中进行通信的***中的第二种网络侧设备包括：
处理器600，用于确定MBSFN区域中的小区信息，根据MBSFN区域中的小区信息控制接收机610向所述用户设备发送通知，以使用户设备在承载在多媒体广播多播业务MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务；
接收机610，用于在处理器600的控制下接收和发送数据。
较佳地，处理器600具体用于：
控制接收机610通过小区的MCCH向用户设备发送MBSFN区域中的小区信息。
较佳地，处理器600具体用于：
针对每个小区，控制接收机610通过小区的MCCH，发送小区所属的MBSFN区域中的所有小区信息；或
针对每个小区，控制接收机610通过小区的MCCH，发送小区所属的MBSFN区域中与小区相邻的小区的小区信息。
较佳地，处理器600具体用于：
确定小区和小区的邻区不都在同一个MBSFN区域中后，控制接收机610通过小区的MCCH向用户设备发送MBSFN区域中的小区信息
较佳地，处理器600具体用于：
若小区和小区的邻区都在同一个MBSFN区域中，控制接收机610不通过小区的MCCH向用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口630还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。
基于同一发明构思，本发明实施例中还提供了网络侧设备通知用户设备的方法和用户设备进行通信的方法，由于这些方法对应的设备是本发明实施例进行通信的***中的设备，并且方法解决问题的原理与***相似，因此该方法的实施可以参见***的实施，重复之处不再赘述。
如图7所示，本发明实施例二提供的用户设备进行通信的方法包括：
步骤701、用户设备在接收承载在MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中；
步骤702、用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
较佳地，用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
用户设备根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，还包括：
用户设备通过MCCH接收来自网络侧设备的MBSFN区域中的小区信息；
用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
用户设备根据收到的MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
较佳地，MBSFN区域中的小区信息为服务小区所在的MBSFN区域中所有小区的小区信息；或
MBSFN区域中的小区信息为服务小区所在的MBSFN区域中与服务小区相邻的小区的小区信息。
较佳地，本发明实施例的方法还包括：
用户设备通过服务小区的MCCH未接收到MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
较佳地，用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
若服务小区和目标小区在同一个MBSFN区域中，用户设备在变更到目标小区后，继续接收承载在MBMS信道上的业务。
较佳地，用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
若服务小区和目标小区不在同一个MBSFN区域中，用户设备判断目标小区是否是MBMS小区；
如果是，且目标小区有用户设备正在传输的MBMS业务，则在变更到目标小区后，继续接收承载在MBMS信道上的业务；
否则，与目标小区进行单播组数据传输。
如图8所示，本发明实施例三提供的网络侧设备向用户设备发送通知的方法包括：
步骤801、网络侧设备确定MBSFN区域中的小区信息；
步骤802、网络侧设备根据MBSFN区域中的小区信息向用户设备发送通知，以使用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
较佳地，网络侧设备通知用户设备，包括：
网络侧设备通过小区的MCCH向用户设备发送MBSFN区域中的小区信息。
较佳地，网络侧设备通过MCCH向用户设备发送MBSFN区域中的小区信息，包括：
针对每个小区，网络侧设备通过小区的MCCH，发送小区所属的MBSFN区域中的所 有小区信息；或
针对每个小区，网络侧设备通过小区的MCCH，发送小区所属的MBSFN区域中与小区相邻的小区的小区信息。
较佳地，网络侧设备通过小区的MCCH向用户设备发送MBSFN区域中的小区信息之前，还包括：
网络侧设备确定小区和小区的邻区不都在同一个MBSFN区域中。
较佳地，网络侧设备向所述用户设备发送通知，包括：
若小区和小区的邻区都在同一个MBSFN区域中，网络侧设备不通过小区的MCCH向用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
下面在列举几个实例，对本发明的方案进行说明。
目标小区属于接收到的MCCH广播的小区列表的情况。如图9所示，本发明实施例四提供的用户设备进行通信的方法包括：
步骤910～920、MCE将MBSFN Area(区域)下的小区列表信息包含在发往各个eNB(演进基站)的MCCH中，向该MBSFN Area下的UE进行广播。
步骤930、UE接收当前服务小区(源eNB)的MBMS/组通信业务。
步骤940、UE通过测量发现当前服务小区的信号较弱(例如低于某个门限)，而邻小区的信号较强(例如高于某个门限)。
步骤950、UE通过接收到的MCCH中携带的MBSFN Area的小区列表信息判断目标小区(目标eNB)与当前服务小区(源eNB)属于同一MBSFN Area。
步骤960、UE直接切换/重选到目标小区继续接收MBMS/组通信业务。
目标小区不属于接收到的MCCH广播的小区列表的情况，UE与目标小区建立单播连接。如图10所示，本发明实施例五提供的用户设备进行通信的方法包括：
步骤1010～步骤1020、MCE将MBSFN Area下的小区列表信息包含在发往各个eNB的MCCH中，向该MBSFN Area下的UE进行广播。
步骤1030、UE接收当前服务小区(源eNB)的MBMS/组通信业务。
步骤1040、UE通过测量发现当前服务小区的信号较弱(例如低于某个门限)，而邻小区的信号较强(例如高于某个门限)。
步骤1050、UE通过接收到的MCCH中携带的MBSFN Area的小区列表信息判断目标小区(目标eNB)与当前服务小区(源eNB)不属于同一MBSFN Area。
步骤1060、UE根据读取的目标小区的SIB确定目标小区是非MBMS小区，确定需要与目标小区建立RRC连接进行单播传输。
步骤1070、UE与目标小区建立RRC连接。
步骤1080、UE与目标小区进行单播组数据传输。
目标小区不属于接收到的MCCH广播的小区列表的情况，UE与目标小区建立其他MBSFN Area的MBMS连接。如图11所示，本发明实施例六提供的用户设备进行通信的方法包括：
步骤1110～步骤1120、MCE1和MCE2分别将MBSFN Area下的小区列表信息包含在发往各个eNB的MCCH中，向该MBSFN Area下的UE进行广播。
步骤1130、UE接收当前服务小区(源eNB)的MBMS/组通信业务。
步骤1140、UE通过测量发现当前服务小区的信号较弱(例如低于某个门限)，而邻小区的信号较强(例如高于某个门限)。
步骤1150、UE通过接收到的MCCH中携带的MBSFN Area的小区列表信息判断目标小区(目标eNB)与当前服务小区(源eNB)不属于同一MBSFN Area。
步骤1160、UE根据读取的目标小区的SIB，确定目标小区是MBMS小区，并根据接收到的目标小区的MCCH发送位置信息，确定切换/重选时间(确定时间可以减少业务中断时间，UE直接在可以接收目标小区MCCH的时间进行小区转换，之前都继续接收原小区的业务)。
步骤1170、UE根据确定的MCCH发送位置信息，接收目标小区的MCCH，根据MCCH中的信息判断是否有UE需要接收的组通信业务，如果有则使用MBMS接收组通信业务，否则与目标小区建立单播连接。
本领域内的技术人员应明白，本发明的实施例可提供为方法、***、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (25)

  1. 一种进行通信的方法，其特征在于，该方法包括：
    用户设备在接收承载在多媒体广播多播业务MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个多媒体广播多播业务单频网MBSFN区域中；
    所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
  2. 如权利要求1所述的方法，其特征在于，所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
    所述用户设备根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
  3. 如权利要求2所述的方法，其特征在于，所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，还包括：
    所述用户设备通过多播控制信道MCCH接收来自网络侧设备的MBSFN区域中的小区信息；
    所述用户设备判断服务小区和目标小区是否在同一个MBSFN区域中，包括：
    所述用户设备根据收到的所述MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
  4. 如权利要求3所述的方法，其特征在于，所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中所有小区的小区信息；或
    所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中与所述服务小区相邻的小区的小区信息。
  5. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    所述用户设备通过所述服务小区的MCCH未接收到所述MBSFN区域中的小区信息，确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
  6. 如权利要求1所述的方法，其特征在于，所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
    若服务小区和目标小区在同一个MBSFN区域中，所述用户设备在变更到所述目标小区后，继续接收承载在MBMS信道上的业务。
  7. 如权利要求1～6任一所述的方法，其特征在于，所述用户设备根据判断结果，确定是否继续接收承载在MBMS信道上的业务，包括：
    若服务小区和目标小区不在同一个MBSFN区域中，所述用户设备判断目标小区是否是MBMS小区；
    如果是，且目标小区有所述用户设备正在传输的MBMS业务，则在变更到所述目标小区后，继续接收承载在MBMS信道上的业务；
    否则，与所述目标小区进行单播组数据传输。
  8. 一种进行通信的方法，其特征在于，该方法包括：
    网络侧设备确定多媒体广播多播业务单频网MBSFN区域中的小区信息；
    所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在多媒体广播多播业务MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
  9. 如权利要求8所述的方法，其特征在于，所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，包括：
    所述网络侧设备通过小区的多播控制信道MCCH向所述用户设备发送MBSFN区域中的小区信息。
  10. 如权利要求9所述的方法，其特征在于，所述网络侧设备通过MCCH向所述用户设备发送MBSFN区域中的小区信息，包括：
    针对每个小区，所述网络侧设备通过所述小区的MCCH，发送所述小区所属的MBSFN区域中的所有小区信息；或
    针对每个小区，所述网络侧设备通过所述小区的MCCH，发送所述小区所属的MBSFN区域中与所述小区相邻的小区的小区信息。
  11. 如权利要求9所述的方法，其特征在于，所述网络侧设备通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息之前，还包括：
    所述网络侧设备确定所述小区和所述小区的邻区不都在同一个MBSFN区域中。
  12. 如权利要求11所述的方法，其特征在于，所述网络侧设备根据所述MBSFN区域中的小区信息向所述用户设备发送通知，包括：
    若所述小区和所述小区的邻区都在同一个MBSFN区域中，所述网络侧设备不通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
  13. 一种进行通信的用户设备，其特征在于，该用户设备包括：
    判断模块，用于在接收承载在多媒体广播多播业务MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个多媒体广播多播业务单频网MBSFN区域中；
    处理模块，用于根据判断结果，确定是否继续接收承载在MBMS信道上的业务。
  14. 如权利要求13所述的用户设备，其特征在于，所述判断模块具体用于：
    根据来自网络侧设备的通知，判断服务小区和目标小区是否在同一个MBSFN区域中。
  15. 如权利要求14所述的用户设备，其特征在于，所述判断模块具体用于：
    通过多播控制信道MCCH接收来自网络侧设备的MBSFN区域中的小区信息；根据收到的所述MBSFN区域中的小区信息，判断服务小区和目标小区是否在同一个MBSFN区域中。
  16. 如权利要求15所述的用户设备，其特征在于，所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中所有小区的小区信息；或
    所述MBSFN区域中的小区信息为所述服务小区所在的MBSFN区域中与所述服务小区相邻的小区的小区信息。
  17. 如权利要求15所述的用户设备，其特征在于，所述判断模块还用于：
    通过所述服务小区的MCCH未接收到所述MBSFN区域中的小区信息，则确定服务小区的所有邻小区都与服务小区处于相同MBSFN区域。
  18. 如权利要求13所述的用户设备，其特征在于，所述处理模块具体用于：
    若服务小区和目标小区在同一个MBSFN区域中，在变更到所述目标小区后，继续接收承载在MBMS信道上的业务。
  19. 如权利要求13～17任一所述的用户设备，其特征在于，所述处理模块具体用于：
    若服务小区和目标小区不在同一个MBSFN区域中，判断目标小区是否是MBMS小区；
    如果是，且目标小区有所述用户设备正在传输的MBMS业务，则在变更到所述目标小区后，继续接收承载在MBMS信道上的业务；
    否则，与所述目标小区进行单播组数据传输。
  20. 一种进行通信的网络侧设备，其特征在于，该网络侧设备包括：
    确定模块，用于确定多媒体广播多播业务单频网MBSFN区域中的小区信息；
    通知模块，用于根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在多媒体广播多播业务MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
  21. 如权利要求20所述的网络侧设备，其特征在于，所述通知模块具体用于：
    通过小区的多播控制信道MCCH向所述用户设备发送MBSFN区域中的小区信息。
  22. 如权利要求21所述的网络侧设备，其特征在于，所述通知模块具体用于：
    针对每个小区，通过所述小区的MCCH，发送所述小区所属的MBSFN区域中的所有小区信息；或
    针对每个小区，通过所述小区的MCCH，发送所述小区所属的MBSFN区域中与所述 小区相邻的小区的小区信息。
  23. 如权利要求21所述的网络侧设备，其特征在于，所述通知模块具体用于：
    确定所述小区和所述小区的邻区不都在同一个MBSFN区域中后，通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息。
  24. 如权利要求23所述的网络侧设备，其特征在于，所述通知模块具体用于：
    若所述小区和所述小区的邻区都在同一个MBSFN区域中，不通过小区的MCCH向所述用户设备发送MBSFN区域中的小区信息，以使得所述用户设备通过在小区的MCCH未收到MBSFN区域中的小区信息确定所述小区和所述小区的邻区都在同一个MBSFN区域中。
  25. 一种进行通信的***，其特征在于，该***包括：
    用户设备，用于在接收承载在多媒体广播多播业务MBMS信道上的业务过程中，若进行小区切换，则判断服务小区和目标小区是否在同一个多媒体广播多播业务单频网MBSFN区域中；根据判断结果，确定是否继续接收承载在MBMS信道上的业务；
    网络侧设备，用于确定MBSFN区域中的小区信息；根据所述MBSFN区域中的小区信息向所述用户设备发送通知，以使所述用户设备在承载在MBMS信道上的业务过程中若进行小区切换，则判断服务小区和目标小区是否在同一个MBSFN区域中，并根据判断结果确定是否继续接收承载在MBMS信道上的业务。
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