WO2015168985A1 - 更新多媒体广播多播控制信道信息的方法及设备 - Google Patents

更新多媒体广播多播控制信道信息的方法及设备 Download PDF

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Publication number
WO2015168985A1
WO2015168985A1 PCT/CN2014/082207 CN2014082207W WO2015168985A1 WO 2015168985 A1 WO2015168985 A1 WO 2015168985A1 CN 2014082207 W CN2014082207 W CN 2014082207W WO 2015168985 A1 WO2015168985 A1 WO 2015168985A1
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Prior art keywords
mcch
modification period
information
mbms
updated
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PCT/CN2014/082207
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English (en)
French (fr)
Inventor
许辉
马子江
王亚英
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP14891326.2A priority Critical patent/EP3128772B1/en
Priority to US15/308,368 priority patent/US10313185B2/en
Publication of WO2015168985A1 publication Critical patent/WO2015168985A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0803Configuration setting
    • H04L41/0813Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/0816Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present invention relates to data updating techniques in the field of communications, and in particular, to a method for updating multimedia broadcast multicast control channel (MCCH) information, a network device, a method for receiving updated MCCH information, and a user equipment.
  • MCCH multimedia broadcast multicast control channel
  • the 3rd Generation Partnership Project (3GPP) proposes a Multimedia Broadcast/Multicast Service (MBMS) service, which is a data source.
  • MBMS Multimedia Broadcast/Multicast Service
  • the technology of transmitting data to multiple targets realizes the sharing of resources of the network (including the core network and the access network) and improves the utilization of network resources (especially air interface resources).
  • the 3GPP-defined MBMS not only enables plain text low-rate message-like multicast and broadcast, but also enables broadcast and multicast of high-speed multimedia services, providing a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile
  • the trend of data development provides a better business prospect for the development of 3G.
  • the MBMS service can adopt the multicast mode, which is called the MBSFN (Multicast/Broadcast over Single Frequency Network) transmission mode, and the MBMS service generated in the multicast mode, also called the MBSFN service.
  • MBSFN Multicast/Broadcast over Single Frequency Network
  • the same modulation and coding format can be used in multiple cells, and the same content is generated by the same physical resource.
  • the characteristics of MBMS multi-cell transmission are: 1) synchronous transmission in the MBSFN area; 2) support multi-cell MBMS transmission and combination; 3) Multicast traffic channel (MTCH, Multicast Traffic CHannel) and Multicast Control Channel (MCCH, Multicast Control CHannel) are mapped to the MCH transport channel in point-to-multipoint (pTm) mode; 4) - MBSFN synchronization area, MBSNF Zones, MBSFN transmissions, advertisements, reserved cells, are all semi-statically configured by operation and maintenance.
  • the user equipment (UE, User equipment) of the multiple cells can receive multiple MBMS data with the same content and perform single frequency network (SFN) merging, so that the gain of the received signal can be improved.
  • Multiple cells that use the same physical resource and transmit the MBSFN transmission mode to transmit the same MBMS service constitute an MBSFN area.
  • MBSFN MBSFN service group
  • MBSFN service group MBSFN service group
  • MBSFN service group MBSFN service group
  • An MB SFN area includes multiple cells, each of which is configured with an identical MBSFN service group.
  • the data channel MTCH of multiple MBSFN services having the same MBSFN area, and the control channel MCCH of the MBSFN service can be multiplexed into one multicast channel (MCH, Multicast Channel).
  • MCH Multicast Channel
  • the MCCH and multiple MTCHs of the same MBSFN area that is, multiple logical channels can be mapped to the same transport channel MCH; the MCH is carried by the transport block of the MBSFN subframe.
  • an MSAP occasion is introduced in the MBSFN Subframe Allocation Pattern (MSAP, MBSFN Subframe Allocation Pattern) concept, which indicates an MCH corresponding to an MSAP in a time period of a dynamic scheduling period. All multicast resources are included. Multiple MTCHs and dynamic scheduling can be sent in one MSAP occasion
  • the information may further include an MCCH, and the dynamic scheduling information is carried in a MAC (Media Access Control) Protocol Data Unit (PDU) control element (CE, Control Element), and the MSAP occasion may be 320 ms in length.
  • the length of an MSAP occasion is a scheduling period, also known as a dynamic scheduling period.
  • One MCH allocates one or more MBSFN subframes in one or more MBSFN frames through the MSAP, where the subframes transmitted in the multicast mode are referred to as MBSFN subframes, and the frames containing the MBSFN subframes are referred to as MBSFN frames.
  • the dynamic scheduling information is carried on each MSAP occasion configured by an MCH, and carries the mapping information of the MTCH to the auxiliary MSAP subframe.
  • the mapping information is determined by using the MBSFN subframe number index relationship in a scheduling period, and the UE Reading the scheduling information may know which MBSFN subframes each MTCH is allocated, and the UE may read the MTCH of interest on the corresponding MBSFN subframe, and ignore the MBSFN subframes that it does not need to read, thereby improving the UE.
  • the MBMS service receives efficiency and saves the UE's power consumption.
  • the MBSFN subframe number is determined as follows: All MBSFN subframes allocated by one MCH in one scheduling period are sequentially arranged and numbered sequentially.
  • multiple logical channels multiplex the MCH channel in the following manner:
  • One subframe corresponds to one transmission time interval (TTI), and one transmission data block ( ⁇ ) can be transmitted in one ,, corresponding to each ⁇
  • MAC PDU Media Access Control Layer Protocol Data Unit
  • multiple service data units (MAC SDUs) may be included, and these MAC SDUs may be from different logical channels, and possible logical channels include MTCH, MCCH, and the like. These data from different logical channels are concatenated together in the MAC PDU and sent together on the physical channel.
  • the MAC control unit is identified by a MAC PDU subheader carrying a Logical Channel IDentifier (LCID) as shown in FIG.
  • the MAC control unit has a variable length of 2xbytes (x Is the number of elements in the MBMS-SessionInfoList sequence). For each MTCH should contain the following fields:
  • LCID This field indicates the logical channel ID of the MTCH.
  • the length of the field is 5 bits.
  • Stop MTCH This field indicates the sequence number of the corresponding MTCH end subframe in the MSAP occasion. The length of this field is 11 bits.
  • the specified Stop MTCH value 2047 indicates that the corresponding MTCH is not scheduled, and the range of 2043 to 2046 is reserved.
  • the Stop MTCH is identified by 2047.
  • the MCCH information includes the MCH in the MBSFN area, that is, the resource configuration of the Physical Multicast Channel (PMCH), that is, the subframe position of the MCH.
  • the information includes: a modulation and coding scheme (MCS), a MBSFN subframe allocation pattern, and the like, and the UE obtains a corresponding MSI start position by using the MCH configuration information in the MCCH, thereby acquiring an interested Configuration information of the MBMS service.
  • the MCCH is periodically transmitted, including the repetition period and the modification period.
  • the modification period includes multiple repetition periods, and the MCCH content remains unchanged.
  • the MCCH content may change during different modification periods.
  • Figure 2 shows a schematic diagram of the MCCH modification period.
  • the trunking communication system is a dedicated wireless communication system developed for the needs of industry users to command and dispatch. It is a dedicated wireless communication system for specific industry applications. A large number of wireless users share a small number of wireless channels in the system, and the command and dispatch is the main application. It is a multi-purpose and high-efficiency system. Wireless communication system.
  • the trunk communication system has a wide range of application markets in the government sector, public safety, emergency telecommunications, power, civil aviation, petrochemical and military sectors. Cluster communication in 3GPP LTE is called group communication service capability GCSE.
  • the industry is currently discussing the possibility of using MBMS technology to achieve cluster communication.
  • the minimum MCCH modification period is 5.12 seconds and the minimum MSP is 80 ms.
  • 3GPP R12 initially determined to shorten the minimum MSP, but did not agree to shorten the minimum MCCH modification period, and 3GPP R13 determined to shorten the minimum MCCH period.
  • the UE may have a forward compatibility problem for the R12, which is mainly reflected in the impact on the MBMS service data update, and needs to be configured on the network side to solve the problem. This forward compatibility issue. However, for this problem, there is no solution in the related art. Summary of the invention
  • the embodiment of the present invention is to provide a method, a network device, and a terminal device for updating MCCH information, which at least solves that R12 does not shorten the minimum period of MCCH, and shortens the minimum MCCH period at R13, and may generate before the UE of R12. To compatibility issues.
  • An embodiment of the present invention provides a method for updating multimedia broadcast multicast control channel information, where the method includes:
  • the network side needs to update the MCCH information in the short multicast control channel MCCH modification period, and the network side changes the priority of the MBMS service data according to the resource configuration change when the updated MCCH information is related to the resource configuration change of the multimedia broadcast multicast MBMS service data. Selecting to update the MCCH information in the short MCCH modification period; or, selecting to update the MCCH information in the normal MCCH modification period;
  • the network side sends the updated MCCH information.
  • the method further includes:
  • the short MCCH modification period includes: an MCCH modification period of less than 5.12 seconds; the normal MCCH modification period is: an MCCH modification period equal to 5.12 seconds.
  • the resource configuration includes one or more of the following:
  • the method further includes:
  • the MCCH content is not allowed to be changed, and only the MCCH content is allowed to be changed in the normal MCCH modification period, including one or more of the following contents:
  • the data modulation coding mode of each PMCH can only be changed during the normal MCCH modification period
  • the MBSFN subframe allocation mode of the MBSFN area corresponding to the MCCH can only be changed during the normal MCCH modification period;
  • the end subframe of each PMCH can only be changed during the normal MCCH modification period, and the end subframe of the last PMCH can be modified on the current short MCCH modification period;
  • the number of MBSFN subframes occupied by each PMCH can only be changed during the normal MCCH modification period.
  • the MCCH information needs to be updated when the MBMS session starts in the short MCCH modification period, and the MBMS session is not on the last PMCH;
  • the method further includes:
  • the network side determines the priority of the MBMS service data through the MBMS quality QoS information
  • the MCCH information is updated in the short MCCH modification period
  • the MCCH information is updated in the normal MCCH modification period.
  • the MBMS service in one MBSFN area is distributed on one or more PMCHs,
  • the MCCH information needs to be updated when the short MCCH modification period has an MBMS session end; the method further includes:
  • the network device updates the MCCH information in the normal MCCH modification period.
  • the MBMS service in one MBSFN area is distributed on one or more PMCHs, and the MCCH information needs to be updated when the MBMS session is updated in the short MCCH modification period; the method further includes:
  • the network side determines the priority of the MBMS service data through the MBMS quality QoS information
  • the MCCH information is updated in the short MCCH modification period
  • the MCCH information is updated in a normal MCCH modification period
  • the MBMS session update includes one or more of a subframe allocation end, a data modulation and coding mode, and an MBSFN subframe allocation mode.
  • An embodiment of the present invention provides a network device, where the network device includes: a determining unit, a selecting processing unit, and a sending unit;
  • the determining unit is configured to update the MCCH information in the short multicast control channel MCCH modification period, and determine whether the updated MCCH information is related to the resource configuration change of the multimedia broadcast multicast MBMS service data, and the updated MCCH information and the resources of the MBMS service data When the configuration change is related, the notification selection processing unit performs processing;
  • the selection processing unit is configured to: select the MCCH information to be updated in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, select to update the MCCH information in the normal MCCH modification period;
  • a sending unit configured to send updated MCCH information.
  • the short MCCH modification period includes: an MCCH modification week of less than 5.12 seconds
  • the normal MCCH modification period is an MCCH modification period equal to 5.12 seconds.
  • the resource configuration includes one or more of the following:
  • the network device further includes:
  • the configuration unit is configured to be set in the short MCCH modification period. Except for the high priority MBMS service data, the MCCH content is not allowed to be changed, and only the MCCH content is allowed to be changed during the normal MCCH modification period, including one or more of the following contents:
  • the data modulation coding mode of each PMCH can only be changed during the normal MCCH modification period
  • the MBSFN subframe allocation mode of the MBSFN area corresponding to the MCCH can only be changed during the normal MCCH modification period;
  • the end subframe of each PMCH can only be changed during the normal MCCH modification period, and the end subframe of the last PMCH can be modified on the current short MCCH modification period;
  • the number of MBSFN subframes occupied by each PMCH can only be changed during the normal MCCH modification period
  • the network device needs to update the MCCH information when the short MCCH modification period starts with an MBMS session, and if the MBMS session is not on the last PMCH, the method further includes:
  • a priority determining unit configured to determine a priority of the MBMS service data by using quality of service QoS information of the MBMS;
  • the selection processing unit is further configured to: when it is determined that the MBMS service data of the resource configuration change is a high priority, update the MCCH information in a short MCCH modification period; and determine that the MBMS service data of the resource configuration change occurs. When it is not high priority, the MCCH information is updated in the normal MCCH modification period.
  • the network device distributes the MBMS service on one or more PMCHs in an MBSFN area, where the short MCCH modification period needs to update the MCCH information when the MBMS session ends.
  • the selection processing unit is further configured to update the MCCH information in a normal MCCH modification period.
  • the network device is configured to distribute the MBMS service on one or more PMCHs in an MBSFN area, and if the MCCH information needs to be updated when the short MCCH modification period has an MBMS session update, the method further includes:
  • a priority determining unit configured to determine a priority of MBMS service data by using MBMS quality of service QoS information
  • the selection processing unit is further configured to: when it is determined that the MBMS service data of the resource configuration change is a high priority, update the MCCH information in a short MCCH modification period; and determine that the MBMS service data of the resource configuration change occurs. When the priority is not high, the MCCH information is updated in the normal MCCH modification period;
  • the MBMS session update includes one or more of a subframe allocation end, a data modulation and coding mode, and an MBSFN subframe allocation mode.
  • the determining unit, the selecting processing unit, the sending unit, the configuration unit, and the priority determining unit may use a central processing unit (CPU) and a digital signal processor when performing processing. (DSP, Digital Singnal Processor) or Programmable Array (FPGA) implementation.
  • CPU central processing unit
  • DSP Digital Singnal Processor
  • FPGA Programmable Array
  • An embodiment of the present invention provides a method for receiving information for updating a multimedia broadcast multicast control channel, where the method includes: The user side receives the updated MCCH information;
  • the updated MCCH information is: selecting, by the network side, the MCCH information updated in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, selecting the MCCH information updated in the normal MCCH modification period.
  • An embodiment of the present invention provides a user equipment, where the user equipment includes:
  • a receiving unit configured to receive updated MCCH information by the user side
  • the updated MCCH information is: selecting, by the network side, the MCCH information updated in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, selecting the MCCH information updated in the normal MCCH modification period.
  • the receiving unit can implement the processing by using a central processing unit (CPU), a digital signal processor (DSP), or a field-programmable gate array (FPGA).
  • CPU central processing unit
  • DSP digital signal processor
  • FPGA field-programmable gate array
  • the method for updating the MCCH information in the embodiment of the present invention includes: when the network side needs to update the MCCH information in the short MCCH modification period, and the updated MCCH information is related to the resource configuration change of the MBMS service data, the network side changes the MBMS service according to the resource configuration change.
  • the priority of the data selecting to update the MCCH information in the short MCCH modification period; or, selecting to update the MCCH information in the normal MCCH modification period; the network side transmitting the updated MCCH information.
  • the MCCH information that needs to be updated for the short MCCH modification period may be selected to update the MCCH information in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, the normal MCCH modification is selected.
  • the MCCH information is periodically updated. Therefore, after the updated MCCH information is sent by the network side to the UE side, it can be correctly read after being received by the UE, thereby solving the problem that R12 does not shorten the minimum MCCH period, and shortens the minimum MCCH period at 13 to R12.
  • the UE may have a forward compatibility issue.
  • 1 is a schematic diagram of an MBMS dynamic scheduling information MAC control unit
  • 2 is a schematic diagram of an MCCH modification period
  • Figure 3a-3b is a schematic diagram of MBMS scheduling information
  • FIG. 5 is a flowchart of an implementation of Embodiment 1 of the method according to the present invention.
  • FIG. 6 is a flowchart of an implementation of a second embodiment of a method according to the present invention.
  • FIG. 7 is a flowchart of an implementation of a third embodiment of a method according to the present invention.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a structure of an embodiment of a user equipment according to the present invention.
  • FIG. 10 is a schematic structural diagram of a system embodiment of the present invention. detailed description
  • a method for updating the MCCH information includes: when the MCCH information needs to be updated in the MCCH modification period of less than 5.12 seconds, if the updated MCCH information relates to the resource change of the MBMS service, the network side changes according to the The priority of the MBMS service is selected to update the MCCH information in the short MCCH modification period; or, the MCCH information is selected to be updated in the normal MCCH modification period; after that, the network side sends the updated MCCH information to the user side.
  • the short MCCH modification period includes: an MCCH modification period of less than 5.12 seconds;
  • the normal MCCH modification period is: MCCH modification period equal to 5.12 seconds.
  • the UE may have a forward compatibility problem for the R12, which is mainly reflected in the impact on the MBMS service data update, resulting in the UE not recognizing less than 5.12 seconds.
  • the MCMS modifies the MBMS service data of the short MCCH modification period.
  • the UE can only identify the MBMS service data of the long MCCH modification period with a minimum MCCH modification period of 5.12 seconds or more.
  • the configuration on the network side can ensure the forward compatibility of the UEs interested in receiving the MBMS service data when the MCCH modification period of less than 5.12 seconds is used, so that the UE can
  • the MBMS service data of the MCCH modification period is identified to improve the user experience, thereby solving the forward compatibility problem of the UE.
  • the MBMS in the embodiment of the present invention refers to an evolved MBMS, that is, an eMBMS, and the AS refers to a GCSE AS.
  • the legacy UE refers to a UE with a minimum MCCH modification period of 5.12 seconds.
  • the normal MCCH modification period is used.
  • the legacy UE can only read the normal MCCH modification period; the short MCCH modification period (short MCCH MP) is shorter than the normal modification period, and the short MCCH modification period is less than 5.12 seconds, for example: 80ms, 160ms, 320ms, 640ms , 1.28s, 2.56s.
  • a normal UE cannot read the short MCCH modification period.
  • the updated MCCH information cannot be obtained within a time less than 5.12 s, and the UE may generate an error when reading the PMCH 2, that is, the new PMCH 2 starts from the subframe 4, and the legacy UE PMCH2 is also read from subframe 3.
  • the behavior of the MSI to be sent by the network side at this time is limited by the following configuration.
  • the MBSFN information configuration element (MB SFN-ArealnfoList information element) is composed as follows:
  • MBSFN-AreaInfo-r9 SEQUENCE ⁇
  • notificationIndicator-r9 INTEGER (0..7)
  • composition of the PMCH-InfoList information element is as follows:
  • PMCH-InfoList-r9 SEQUENCE (SIZE (0..maxPMCH-PerMBSFN)) OF PMCH-Info-r9
  • PMCH-Info-r9 SEQUENCE ⁇
  • MBMS-SessionInfoList-r9 SEQUENCE (SIZE (0.. maxSessionPerPMCH)) OF MBMS-SessionInfo-r9
  • MBMS-SessionInfo-r9 SEQUENCE ⁇
  • sessionId-r9 OCTET STRING (SIZE (1)) OPTIONAL, - Need OR logicalChannelIdentity-r9 INTEGER (0..maxSessionPerPMCH- 1 ),
  • PMCH-Config-r9 SEQUENCE ⁇
  • Rf8, rfl6, rB2, rf64, rfl28, rf256, rf512, rfl024 ⁇ in addition to the above configurations of one and two, also include:
  • the network side changes the dataMCS of the MBMS, that is, the modulation and coding scheme (MCS) of the PMCH data, or the network side changes the subframe allocation mode of the MBSFN, such as the change of the allocation mode of the OneFrame and the FourFrames, which will change.
  • MCS modulation and coding scheme
  • the content of the PMCH data thereby affecting the legacy UE receiving MBMS data.
  • the following restrictions are imposed on the network side to ensure that the content of the PMCH data is not arbitrarily changed:
  • a certain MBCHN area includes multiple PMCHs (each PMCH is arranged in order, as shown in Figures 3a-3b, according to the MBSFN subframe number from small to large, numbered sequentially, in order), and when the MCCH MP is less than 5.12s , ie: When the shortest MCCH MP is smaller than Rel9, the following configuration requirements are required:
  • Each MCH can increase and decrease MTCH (one LCID for each MTCH), and can also adjust the MBSFN sub-frame occupied by a certain/some MTCH, but except for the last PMCH, the sub-frame occupied by each PMCH
  • LCID X When one or more MTCHs are carried on the PMCH, when one or more MTCHs are added, there is one/multiple service start (session start), such as: LCID X. If the number of subframes configured by the current PMCH cannot carry the newly added MTCH: The priority of the newly added MTCH needs to be considered. If the MTCH is a high-priority MTCH, the subframe resources of the existing MTCH are preempted and updated. MCCH, MSI and PMCH data; otherwise, waiting for the current 5.12s MCCH MP to end, the network side updates the MCCH, MSI and PMCH data.
  • session start such as: LCID X.
  • the method for updating the MCCH information is as follows:
  • the traditional UE is a UE with a minimum MCCH modification period of 5.12 seconds, and includes the following steps:
  • Step 101 The network device needs to update the MCCH content in a short MCCH modification period.
  • the normal MCCH modification period may be an MCCH modification period equal to 5.12 seconds with respect to the short MCCH modification period, for example, a modification period of less than 5.12 seconds, and no further description is made.
  • the network device includes at least one of the following: an eNB, an MCE.
  • the less than 5.12 seconds means any one of the following: 2.56s, 1.28s, 640ms, 320ms, 160ms, 80ms.
  • Step 102 Whether the updated content is related to resource configuration, if yes, then go to step 103, otherwise, go to step 104.
  • the resource configuration includes one or more of the following: subframe allocation end sf-AllocEnd, data modulation and coding scheme dataMCS, subframe allocation subframeAllocation, or MBSFN subframe allocation mode MSAP.
  • Step 103 whether the updated MBMS service has a high priority, and if so, the steering step
  • step 104 otherwise, go to step 105.
  • the high priority refers to a higher priority than the MBMS service on the existing MCCH.
  • Step 104 The network device selects to update the MCCH information in a short MCCH modification period.
  • the network device may further update the MBMS scheduling information and/or the PMCH data in addition to updating the MCCH information.
  • the network device updates the MCCH, the scheduling information, and the PMCH data.
  • This step updates the MCCH, and the MBMS scheduling information and/or the PMCH data may affect the legacy UE, such as The legacy UE cannot receive the MBMS service of interest normally.
  • Step 105 The network device selects to update the MCCH information in the normal MCCH modification period.
  • the network device may further update the MBMS scheduling information and/or the PMCH data in addition to updating the MCCH information.
  • the 5.12s refers to the current MCCH modification period corresponding to 5.12s.
  • the current MCCH MP 2.56s, after the current MCCH MP ends, continue to wait for 2.56s, then update the MCCH, MSI and PMCH data.
  • MCCH MP is less than 5.12 s
  • the MBMS service is distributed on multiple PMCHs and there is a MBMS session start scenario.
  • the implementation method is as shown in Figure 5, including:
  • step 201 there is an MBMS session start in the MCCH modification period of less than 5.12 seconds.
  • the MBMS session is not the MTCH on the last PMCH; if the MBMS session is on the last PMCH, the starting position of the current other PMCH is not changed, and the legacy UE reads the MBMS session scheduling information, because the UE cannot Discard directly.
  • the MBMS session results in any one or more of the following parameter changes: dataMCS, sf-AllocEnd, MSAP.
  • Step 202 The MBMS UE receives the MCCH information.
  • the MBMS UE refers to a UE that is receiving or interested in receiving an MBMS service; wherein the legacy UE cannot receive the updated MCCH information in the MCCH MP less than 5.12s, that is, the MCCH information received by the legacy UE is not yet updated.
  • Step 203 Whether the MBMS service has a high priority, and if yes, go to step 204, otherwise, go to step 205.
  • the high priority of the MBMS service may be determined by the network side through the MBMS Good Quality of Service (QoS) information, such as the Allcation and Retention Priority (ARP) parameter information.
  • QoS Quality of Service
  • ARP Allcation and Retention Priority
  • Step 204 The network device sends updated MCCH information, MBMS scheduling information, and/or PMCH data to the UE.
  • the updated MCCH information, scheduling information and/or PMCH data may affect legacy UEs, eg legacy UEs may not be able to read updated MCCH, MSI, and/or may not be able to read updates PMCH data.
  • Step 205 The network device waits for the 5.12 second MCCH modification period to complete, and then sends the updated MCCH information, scheduling information MSI and/or PMCH data.
  • the update does not affect the legacy UE, ie the legacy UE can normally read the updated MCCH, MSI and/or PMCH data.
  • the MBMS service is distributed on one or more PMCHs, and there is a MBMS session sto scenario.
  • the method is implemented as shown in Figure 6, including:
  • Step 301 There is an MBMS Session stop in the MCCH modification period of less than 5.12 seconds.
  • the MBMS session sto refers to the end of the MBMS service.
  • Step 302 The MBMS UE receives the MCCH information.
  • Step 303 The network device waits for 5.12 seconds to update the MCCH information, the MBMS scheduling information, and/or the PMCH data after the MCCH modification period ends.
  • the network device If the MBMS session is located in the MTCH of the last PMCH in the MCCH, the network device updates the MCCH and the MSI in time, because the MBMS session has little effect on the MSI received by the legacy UE in the MSI, that is, the legacy UE can ignore the change of the MBMS session. Otherwise, the network device waits for the MCCH MP of 5.12s before updating the MCCH, MSI and/or PMCH data.
  • the MBMS service is distributed on one or more PMCHs, and there is a MBMS session update scenario.
  • the implementation method is as shown in Figure 7, including:
  • Step 401 An MBMS session update occurs in an MCCH modification period of less than 5.12 seconds.
  • the MBMS session update includes any one or more of the following: Sf-AllocaEnd, dataMCS, MSAP.
  • Step 403 whether the updated MBMS service is high priority, if yes, go to step 404, otherwise, go to step 405.
  • Step 404 The network device updates the MCCH information, the MBMS scheduling information, and/or the PMCH data.
  • Step 405 The network device waits for 5.12 seconds after the end of the MCCH modification period to send updated MCCH information, MBMS scheduling information, and/or PMCH data.
  • the network device waits for the current 5.12s MCCH MP to end, and then updates the MCCH, MSI and/or PMCH data; otherwise, the network The device updates the MCCH, MSI and/or PMCH data in a timely manner.
  • An embodiment of the present invention provides a method for updating MCCH information, where the method includes: when an MCCH channel is configured with one MCCH channel and multiple PMCH channels are configured, and the network side needs to update the MCCH information in the MCCH modification period of the short multicast control channel,
  • the method includes: when an MCCH channel is configured with one MCCH channel and multiple PMCH channels are configured, and the network side needs to update the MCCH information in the MCCH modification period of the short multicast control channel,
  • the data modulation coding mode of each PMCH cannot be changed in the short MCCH modification period, that is, it can only be changed during the normal MCCH modification period;
  • the MBSFN subframe allocation mode of the MBSFN area corresponding to the MCCH cannot be changed in the short MCCH modification period, that is, it can only be changed during the normal MCCH modification period;
  • the end subframe of the last PMCH may be changed in a short MCCH modification period.
  • the normal MCCH modification period is an MCCH modification period equal to 5.12 seconds.
  • the number of MBSFN subframes occupied by each PMCH can only be changed during the normal MCCH modification period.
  • the embodiment of the present invention further provides a network device.
  • the network device includes: a determining unit 11, a selecting processing unit 12, and a sending unit 13; wherein, determining The unit 11 is configured to update the MCCH information in the short multicast control channel MCCH modification period, and determine whether the updated MCCH information is related to the resource configuration change of the multimedia broadcast multicast MBMS service data, and the resource configuration of the updated MCCH information and the MBMS service data.
  • the notification selection processing unit 12 performs processing.
  • the selection processing unit 12 is configured to select to update the MCCH information in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or to select to update the MCCH information in the normal MCCH modification period.
  • the transmitting unit 13 is configured to transmit updated MCCH information.
  • the short MCCH modification period includes: an MCCH modification period of less than 5.12 seconds;
  • the normal MCCH modification period is an MCCH modification period equal to 5.12 seconds.
  • the resource configuration includes one or more of the following:
  • the network device further includes:
  • a configuration unit configured to be set in the short MCCH modification period, except for high priority
  • MBMS service data which is not allowed to change MCCH content, only allows MCCH content to be changed during normal MCCH modification period, including one or more of the following:
  • the data modulation and coding mode of each PMCH can only be changed during the normal MCCH modification period. Change
  • the MBSFN subframe allocation mode of the MBSFN area corresponding to the MCCH can only be changed during the normal MCCH modification period;
  • the end subframe of each PMCH can only be changed during the normal MCCH modification period, and the end subframe of the last PMCH can be modified on the current short MCCH modification period;
  • the number of MBSFN subframes occupied by each PMCH can only be changed during the normal MCCH modification period.
  • the network device needs to update the MCCH information when the MBMS session starts in the short MCCH modification period, and if the MBMS session is not on the last PMCH, the network device further includes :
  • a priority determining unit configured to determine a priority of MBMS service data by using MBMS quality of service QoS information
  • the selection processing unit is further configured to: when it is determined that the MBMS service data of the resource configuration change is a high priority, update the MCCH information in a short MCCH modification period; and determine that the MBMS service data of the resource configuration change occurs. When it is not high priority, the MCCH information is updated in the normal MCCH modification period.
  • the network device distributes the MBMS service on one or more PMCHs in an MBSFN area, and the MCCH information needs to be updated when the MBMS session ends in the short MCCH modification period.
  • the selection processing unit is further configured to update the MCCH information in a normal MCCH modification period.
  • the network device distributes the MBMS service on one or more PMCHs in an MBSFN area, and needs to update the MCCH information when there is an MBMS session update in the short MCCH modification period. In the case of, it also includes:
  • a priority determining unit configured to determine MBMS by quality of service QoS information of MBMS Priority of business data
  • the selection processing unit is further configured to: when it is determined that the MBMS service data of the resource configuration change is a high priority, update the MCCH information in a short MCCH modification period; and determine that the MBMS service data of the resource configuration change occurs. When the priority is not high, the MCCH information is updated in the normal MCCH modification period;
  • the MBMS session update includes one or more of a subframe allocation end, a data modulation and coding mode, and an MBSFN subframe allocation mode.
  • the embodiment of the present invention further provides a method for receiving MCCH information, where the method includes: receiving, by the user side, updated MCCH information.
  • the updated MCCH information is: selecting, by the network side, the MCCH information updated in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or selecting the MCCH information updated in the normal MCCH modification period.
  • the method further includes:
  • the user side receives the updated MCCH information, reads the updated MBMS scheduling information according to the updated MCCH information, and reads the updated PMCH data according to the updated MCCH and the updated MBMS scheduling information.
  • the embodiment of the present invention further provides a user equipment.
  • the user equipment includes:
  • the receiving unit 21 is configured to receive updated MCCH information by the user side.
  • the updated MCCH information is: selecting, by the network side, the MCCH information updated in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or selecting the MCCH information updated in the normal MCCH modification period.
  • the user equipment further includes:
  • a reading unit configured to receive updated MCCH information, read updated MBMS scheduling information according to the updated MCCH information, according to the updated MCCH and the updated The MBMS scheduling information reads the updated PMCH data.
  • the embodiment of the present invention further provides a system for updating MBMS service data.
  • the system includes: a UE 30 and a network device 40.
  • the UE 30 is configured to receive updated MCCH information.
  • the network device 40 is configured to select to transmit updated MCCH information to the UE 30 in a short MCCH modification period according to the MBMS service priority; or to transmit updated MCCH information to the UE 30 in a normal MCCH modification period.
  • the network device 40 includes any one of an MCE and an eNB.
  • the UE30 specifically includes:
  • the receiving unit 31 is configured to receive updated MCCH information by the user side;
  • the reading unit 32 is configured to receive the updated MCCH information, read the updated MBMS scheduling information based on the updated MCCH information, and read the updated PMCH data based on the updated MCCH and the updated MBMS scheduling information.
  • the network device 40 specifically includes:
  • the determining unit 41 is configured to update the MCCH information in the short multicast control channel MCCH modification period, and determine whether the updated MCCH information is related to the resource configuration change of the multimedia broadcast multicast MBMS service data, and the updated MCCH information and the resources of the MBMS service data.
  • the notification selection processing unit 12 performs processing;
  • the selection processing unit 42 is configured to: update the MCCH information in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, select to update the MCCH information in the normal MCCH modification period;
  • Transmitting unit 43 is configured to transmit updated MCCH information.
  • EPS Evolved Packet System, an evolved packet system
  • MAC Media Access Control, media access control
  • MBMS Multimedia Broadcast/Multicast Service, multimedia broadcast/multicast service
  • GCSE Group Communication Service Enabler, group communication monthly service capability
  • BM-SC Broadcast Multicast - Service Centre, Broadcast Multicast Service Center
  • MBSFN MBMS over a Single Frequency Network, single frequency network MBMS
  • MCH Multicast Channel, multicast channel
  • PMCH Physical Multicast Channel, physical multicast channel
  • MCE Multicell/Multicast Coordination Entity, multi-cell/multicast collaboration entity
  • MME Mobility Management Entity, mobile management entity
  • MSI MCH Scheduling Information, MCH scheduling information
  • MTCH Multicast Traffic Channel, multicast traffic channel
  • QoS Quality of Service, quality of service
  • TMGI Temporary Mobile Group Identity, Temporary Mobile Group ID.
  • the integrated modules described in the embodiments of the present invention may also be stored in a computer readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product.
  • the computer software product is stored in a storage medium and includes a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is implemented to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk and the like.
  • an embodiment of the present invention further provides a computer storage medium, where a calculation is stored
  • the computer program is used to execute the method for updating MCCH information and the method for receiving MCCH information in the embodiment of the present invention.
  • the MCCH information that needs to be updated for the short MCCH modification period may be selected to update the MCCH information in the short MCCH modification period according to the priority of the MBMS service data in which the resource configuration change occurs; or, the normal MCCH modification is selected.
  • the MCCH information is periodically updated. Therefore, after the updated MCCH information is sent by the network side to the UE side, it can be correctly read after being received by the UE, thereby solving the problem that R12 does not shorten the minimum MCCH period, and shortens the minimum MCCH period at 13 to R12.
  • the UE may have a forward compatibility issue.

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Abstract

本发明公开了一种更新多媒体广播多播控制信道信息的方法、更新多媒体广播多播控制信道信息的接收方法、网络设备及用户设备,其中,该方法包括:网络侧在短多播控制信道MCCH修改周期需要更新MCCH信息,更新的MCCH信息与多媒体广播多播MBMS业务数据的资源配置变更有关时,网络侧根据发生资源配置变更的MBMS业务数据的优先级,选择在短MCCH修改周期更新MCCH信息;或者,选择在普通MCCH修改周期更新MCCH信息;网络侧发送更新的MCCH信息。

Description

更新多媒体广播多播控制信道信息的方法及设备 技术领域
本发明涉及通信领域的数据更新技术, 尤其涉及一种更新多媒体广播 多播控制信道(MCCH )信息的方法、 网络设备、 更新 MCCH信息的接收 方法及用户设备。 背景技术
本申请发明人在实现本申请实施例技术方案的过程中, 至少发现相关 技术中存在如下技术问题:
随着 Internet的迅猛发展和大屏幕多功能手机的普及, 出现了大量移动 数据多媒体业务和各种高带宽多媒体业务, 例如, 视频会议、 电视广播、 视频点播、 广告、 网上教育、 互动游戏等, 这一方面满足了移动用户不断 上升的业务需求, 同时也为移动运营商带来新的业务增长点。 这些移动数 据多媒体业务要求多个用户能够同时接收相同数据, 与一般的数据业务相 比, 具有数据量大、 持续时间长、 时延敏感等特点。
为了有效地利用移动网络资源, 第三代合作伙伴计划 (3GPP, 3rd Generation Partnership Project ) 提出了多媒体广播 /多播服务 (MBMS, Multimedia Broadcast/Multicast Service ) 业务, 该业务是一种从一个数据源 向多个目标传送数据的技术, 实现了网络(包括核心网和接入网) 资源的 共享, 提高了网络资源 (尤其是空中接口资源) 的利用率。 3GPP 定义的 MBMS不仅能够实现純文本低速率的消息类多播和广播, 而且还能够实现 高速多媒体业务的广播和多播, 提供多种丰富的视频、 音频和多媒体业务, 这无疑顺应了未来移动数据发展的趋势,为 3G的发展提供了更好的业务前 景。 在 LTE 中, MBMS 业务可以釆用多播模式, 称为单频网多播广播 ( MBSFN, Multicast/Broadcast over Single Frequency Network )发送模式, 釆用多播模式发生的 MBMS业务, 也称为 MBSFN业务, 可以在多个小区 釆用相同的调制后编码格式, 釆用相同的物理资源发生相同内容, MBMS 多小区传输的特征: 1 )在 MBSFN 区域内同步传输; 2 )支持多小区 MBMS 传输合并; 3 ) 多播业务信道(MTCH, Multicast Traffic CHannel )和多播 控制信道( MCCH, Multicast Control CHannel )在点到多点 ( p-T-m )模式 下映射到 MCH传输信道上; 4)-MBSFN 同步区域, MBSNF 区域, MBSFN 传输, 广告, 保留小区, 均由操作维护半静态配置。 这样多个小区的用户 设备( UE, User equipment ) 可以接收到多个内容相同的 MBMS数据并进 行单频网 (SFN, Single Frequency Network )合并, 从而可以提高接收信号 的增益。 釆用相同的物理资源并发送 MBSFN发送模式发送相同 MBMS业 务的多个小区构成了一个 MBSFN区域。
在实际的 LTE组网中, 一个 MBSFN区域上有若干个 MBSFN业务, 这些属于同一个 MBSFN区域的所有 MBSFN业务称为一个 MBSFN业务 组, 也就是说一个 MB SFN业务组仅属于一个 MB SFN区域。 一个 MB SFN 区域包括多个小区,每个小区都配置了完全相同的一个 MBSFN业务组。具 备相同的 MBSFN区域的多个 MBSFN业务的数据信道 MTCH,以及 MBSFN 业务的控制信道 MCCH 可以复用到一条多播信道 (MCH, Multicast Channel )。 相同 MBSFN区域的 MCCH和多个 MTCH, 即多条逻辑信道可 以映射到同一传输信道 MCH上; MCH通过 MBSFN子帧的传输块承载。
现有公开技术中,在 MBSFN子帧分配模式( MSAP, MBSFN Subframe Allocation Pattern ) 概念中同时引入 MSAP 时机( MSAP occasion ), 其指 示了一个动态调度周期的时间段内某个 MSAP所对应的一条 MCH所包括 全部多播资源。 在一个 MSAP occasion中可以发送多个 MTCH和动态调度 信息,还可以包括 MCCH,动态调度信息承载在媒体接入控制( MAC, Media Access Control )协议数据单元(PDU, Protocol Data Unit )控制粒子(CE, Control Element ), MSAP occasion长度可以为 320ms。 一个 MSAP occasion 时间长度就是一个调度周期, 也称为一个动态调度周期。 一条 MCH通过 MSAP分配了一个或多个 MBSFN帧中的一个或多个 MBSFN子帧,其中釆 用多播模式发送的子帧称为 MBSFN 子帧, 含有 MBSFN 子帧的帧称为 MBSFN帧。
在一条 MCH所配置的每个 MSAP occasion上承载了动态调度信息,携 带 MTCH到辅助 MSAP子帧的映射信息,这种映射信息借助于在一个调度 周期内的 MBSFN子帧编号索引关系确定的, UE读取调度信息可以知道每 个 MTCH被分配在哪些 MBSFN子帧上, UE可以在相应的 MBSFN子帧上 读取其感兴趣的 MTCH, 而忽略它不需要读取的 MBSFN子帧, 从而提高 UE的 MBMS业务接收效率, 节省 UE的电能消耗。 这里, 所述 MBSFN子 帧编号是这样确定的: 将一个 MCH 在在一个调度周期内所分配的所有 MBSFN子帧按照顺序排列, 依次编号。
在现有 LTE技术中, 多个逻辑信道通过如下的方式复用 MCH信道: 一个子帧对应一个传输时间间隔 (TTI ), 在一个 ΤΤΙ 内可以发送一个传输 数据块( ΤΒ ),每个 ΤΒ对应一个媒体接入控制层协议数据单元( MAC PDU )。 在一个 MAC PDU中,可以包含多个服务数据单元( MAC SDU ),这些 MAC SDU可以来自不同的逻辑信道, 可能的逻辑信道包括 MTCH、 MCCH等。 这些来自不同逻辑信道的数据在 MAC PDU中串接在一起后一起在物理信 道上发送。
MBMS调度信息( MSI, MCH Scheduling Information ) MAC控制单元 如图 1所示, 通过携带逻辑信道标识 (LCID, Logical Channel IDentifier ) 的 MAC PDU子头来标识。 该 MAC控制单元具有可变长度, 为 2xbytes ( x 为 MBMS-SessionlnfoList序列中元素的个数)。 对每条 MTCH应该包含如 下域:
LCID: 该域指示 MTCH的逻辑信道 ID, 该域长度为 5 bits;
Stop MTCH:该域指示 MSAP occasion中相应 MTCH结束子帧的序号, 该域长度为 11 bits, 指定 Stop MTCH值 2047指示相应的 MTCH没有被调 度, 2043到 2046范围值为预留。
当 MAC PDU中某个 MTCH没有发送, 用 2047标识该 Stop MTCH. MCCH信息中包含了 MBSFN区域中的 MCH, 即物理多播信道( PMCH, Physical Multicast Channel ) 的资源配置, 即 MCH的子帧位置信息, 还有: 调制编码方式(MCS, Modulation and Coding Scheme), MBSFN子帧分配 模式( Subframe allocation pattern )等, UE通过 MCCH中的 MCH配置信 息得到对应的 MSI起始位置, 从而获取感兴趣的 MBMS业务的配置信息。 MCCH周期性发送, 包括重复周期和修改周期, 在修改周期内包含多个重 复周期, 且 MCCH内容保持不变, 在不同的修改周期, MCCH内容可以发 生变化。 图 2给出了 MCCH修改周期的示意图。
集群通信系统是为了满足行业用户指挥调度需求而开发的、 面向指定 行业应用的专用无线通信系统, 系统中大量无线用户共享少量无线信道, 以指挥调度为主体应用, 是一种多用途、 高效能的无线通信系统。 集群通 信系统在政府部门、 公共安全、 应急通信、 电力、 民航、 石油化工和军队 等领域有着广泛的应用市场。在 3GPP LTE中集群通信称为组通信服务能力 GCSE。
目前业界正在讨论釆用 MBMS技术实现集群通信的可能性。 现有的最 小 MCCH修改周期为 5.12秒, 最小 MSP为 80ms; 为了满足 GCSE业务的 时延要求, 特别是加速 MBMS的会话开始 ( session start )过程, 需要考虑 缩短最小的 MCCH修改周期和最小 MSP, 考虑到前向兼容性问题, 3GPP R12初步确定缩短最小 MSP, 但对于缩短最小 MCCH修改周期, 没有达成 一致, 而 3GPP R13确定缩短最小 MCCH周期。
如果 3GPP R12不缩短 MCCH最小周期,而在 R13缩短最小 MCCH周 期, 则对 R12的 UE可能产生前向兼容性问题, 主要体现在对 MBMS业务 数据更新的影响上, 需要在网络侧进行配置以解决这个前向兼容性问题。 然而, 对于这个问题, 相关技术中并未存在解决方案。 发明内容
有鉴于此, 本发明实施例希望提供一种更新 MCCH信息的方法、 网络 设备及终端设备, 至少解决了 R12不缩短 MCCH最小周期, 而在 R13缩短 最小 MCCH周期, 对 R12的 UE可能产生的前向兼容性问题。
本发明实施例的技术方案是这样实现的:
本发明实施例提供了一种更新多媒体广播多播控制信道信息的方法, 所述方法包括:
网络侧在短多播控制信道 MCCH修改周期需要更新 MCCH信息,更新 的 MCCH信息与多媒体广播多播 MBMS业务数据的资源配置变更有关时, 网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更 新 MCCH信息;
网络侧发送更新的 MCCH信息。
优选地, 所述方法还包括:
所述短 MCCH修改周期包括: 小于 5.12秒的 MCCH修改周期; 所述普通 MCCH修改周期为: 等于 5.12秒的 MCCH修改周期。
优选地, 所述资源配置包括以下一种或多种:
子帧分配结束;
数据调制编码方式; 子帧分配个数;
单频网多媒体广播多播 MBSFN子帧分配模式。
优选地, 所述方法还包括:
在所述短 MCCH修改周期, 除了高优先级的 MBMS业务数据, 不允 许改变 MCCH内容, 仅允许在普通 MCCH修改周期改变 MCCH内容, 包 括以下内容的一个或多个:
每个 PMCH的数据调制编码方式只能在所述普通 MCCH修改周期时改 变;
MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式只能在所述普 通 MCCH修改周期时改变;
除了最后一个 PMCH,每个 PMCH的结束子帧只能在所述普通 MCCH 修改周期时改变,最后一个 PMCH的结束子帧能在当前的短 MCCH修改周 期上修改;
除了最后一个 PMCH, 每个 PMCH所占用的 MBSFN子帧个数只能在 所述普通 MCCH修改周期时改变。
优选地, 在所述短 MCCH修改周期内有 MBMS会话开始时需要更新 所述 MCCH信息, 所述 MBMS会话不在最后一个 PMCH上;
所述方法还包括:
网络侧通过 MBMS的 务质量 QoS信息确定 MBMS业务数据的优先 级;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的是高优先级 时, 在短 MCCH修改周期更新 MCCH信息;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的不是高优先 级时, 在普通 MCCH修改周期更新 MCCH信息。
优选地,一个 MBSFN区域中 MBMS业务分布在一个或多个 PMCH上, 在所述短 MCCH修改周期有 MBMS会话结束时需要更新所述 MCCH信息; 所述方法还包括:
网络设备在普通 MCCH修改周期更新 MCCH信息。
优选地,一个 MBSFN区域中 MBMS业务分布在一个或多个 PMCH上, 在所述短 MCCH修改周期有 MBMS会话更新时需要更新所述 MCCH信息; 所述方法还包括:
网络侧通过 MBMS的 务质量 QoS信息确定 MBMS业务数据的优先 级;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的是高优先级 时, 在短 MCCH修改周期更新 MCCH信息;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的不是高优先 级时, 在普通 MCCH修改周期更新 MCCH信息;
所述 MBMS会话更新包括:子帧分配结束、数据调制编码方式、 MBSFN 子帧分配模式中的一种或多种。
本发明实施例提供了一种网络设备, 所述网络设备包括: 判断单元、 选择处理单元、 发送单元; 其中,
判断单元, 配置为在短多播控制信道 MCCH修改周期需要更新 MCCH 信息, 判断更新的 MCCH信息与多媒体广播多播 MBMS业务数据的资源 配置变更是否有关, 当更新的 MCCH信息与 MBMS业务数据的资源配置 变更有关时, 通知选择处理单元执行处理;
选择处理单元, 配置为根据发生资源配置变更的 MBMS业务数据的优 先级,选择在短 MCCH修改周期更新 MCCH信息;或者,选择在普通 MCCH 修改周期更新 MCCH信息;
发送单元, 配置为发送更新的 MCCH信息。
优选地, 所述短 MCCH修改周期包括: 小于 5.12秒的 MCCH修改周 所述普通 MCCH修改周期为等于 5.12秒的 MCCH修改周期。
优选地, 所述资源配置包括以下一种或多种:
子帧分配结束;
数据调制编码方式;
子帧分配个数;
单频网多媒体广播多播 MBSFN子帧分配模式。
优选地, 所述网络设备还包括:
配置单元, 配置为设置在所述短 MCCH修改周期, 除了高优先级的 MBMS业务数据, 不允许改变 MCCH内容, 仅允许在普通 MCCH修改周 期改变 MCCH内容, 包括以下内容的一个或多个:
每个 PMCH的数据调制编码方式只能在所述普通 MCCH修改周期时改 变;
MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式只能在所述普 通 MCCH修改周期时改变;
除了最后一个 PMCH,每个 PMCH的结束子帧只能在所述普通 MCCH 修改周期时改变,最后一个 PMCH的结束子帧能在当前的短 MCCH修改周 期上修改;
除了最后一个 PMCH, 每个 PMCH所占用的 MBSFN子帧个数只能在 所述普通 MCCH修改周期时改变;
优选地, 所述网络设备在所述短 MCCH修改周期有 MBMS会话开始 时需要更新所述 MCCH信息, 所述 MBMS会话不在最后一个 PMCH上的 情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级; 所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息。
优选地, 所述网络设备在一个 MBSFN区域中 MBMS业务分布在一个 或多个 PMCH上, 所述短 MCCH修改周期有 MBMS会话结束时需要更新 所述 MCCH信息的情况下,
所述选择处理单元,还配置为在普通 MCCH修改周期更新 MCCH信息。 优选地, 所述网络设备在一个 MBSFN区域中 MBMS业务分布在一个 或多个 PMCH上, 在所述短 MCCH修改周期有 MBMS会话更新时需要更 新所述 MCCH信息的情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级;
所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息;
所述 MBMS会话更新包括:子帧分配结束、数据调制编码方式、 MBSFN 子帧分配模式中的一种或多种。
所述判断单元、 所述选择处理单元、 所述发送单元、 所述配置单元、 所述优先级确定单元在执行处理时, 可以釆用中央处理器 (CPU, Central Processing Unit )、 数字信号处理器(DSP, Digital Singnal Processor )或可 编程逻辑阵列 (FPGA, Field - Programmable Gate Array ) 实现。
本发明实施例提供了一种更新多媒体广播多播控制信道信息的接收方 法, 所述方法包括: 用户侧接收更新的 MCCH信息;
所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息。
本发明实施例提供了一种用户设备, 所述用户设备包括:
接收单元, 配置为用户侧接收更新的 MCCH信息;
所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息。
所述接收单元在执行处理时, 可以釆用中央处理器 ( CPU, Central Processing Unit )、 数字信号处理器(DSP, Digital Singnal Processor )或可 编程逻辑阵列 (FPGA, Field - Programmable Gate Array ) 实现。
本发明实施例的更新 MCCH信息的方法, 包括: 网络侧在短 MCCH 修改周期需要更新 MCCH信息, 更新的 MCCH信息与 MBMS业务数据的 资源配置变更有关时, 网络侧根据发生资源配置变更的 MBMS业务数据的 优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更新 MCCH信息; 网络侧发送更新的 MCCH信息。
釆用本发明实施例, 由于针对短 MCCH修改周期需要更新的 MCCH 信息, 可以根据发生资源配置变更的 MBMS业务数据的优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更 新 MCCH信息, 因此, 使得更新的 MCCH信息由网络侧发送到 UE侧后, 能被 UE接收后正确读取, 从而解决了 R12不缩短 MCCH最小周期, 而在 13缩短最小 MCCH周期, 对 R12的 UE可能产生的前向兼容性问题。 附图说明
图 1为 MBMS动态调度信息 MAC控制单元的示意图; 图 2为 MCCH修改周期的示意图;
图 3a-3b为 MBMS调度信息的示意图;
图 4为本发明方法实施例的基本原理实现流程图;
图 5为本发明方法实施例一的实现流程图;
图 6为本发明方法实施例二的实现流程图;
图 7为本发明方法实施例三的实现流程图;
图 8为本发明网络设备实施例的组成结构示意图;
图 9为本发明用户设备实施例的组成结构示意图;
图 10为本发明系统实施例的组成结构示意图。 具体实施方式
下面结合附图对技术方案的实施作进一步的详细描述。
本发明实施例主要包括以下内容:
就网络侧而言,一种更新 MCCH信息的方法,包括: 网络侧在小于 5.12 秒的 MCCH修改周期需要更新 MCCH信息时, 如果更新的 MCCH信息涉 及 MBMS业务的资源变更, 网络侧根据发生变更的 MBMS业务的优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修 改周期更新 MCCH信息; 之后, 网络侧发送更新的 MCCH信息给用户侧。
优选地, 所述短 MCCH修改周期包括: 小于 5.12秒的 MCCH修改周 期;
所述普通 MCCH修改周期为: 等于 5.12秒的 MCCH修改周期。
由于 3GPP R12不缩短 MCCH最小周期,而在 R13缩短最小 MCCH周 期, 则对 R12的 UE可能产生前向兼容性问题, 主要体现在对 MBMS业务 数据更新的影响上, 导致 UE不能识别小于 5.12秒的 MCCH修改周期这种 短 MCCH修改周期的 MBMS业务数据, UE通常只能识别最小 MCCH修 改周期为 5.12秒及以上这种长 MCCH修改周期的 MBMS业务数据, 而釆 用本发明实施例, 通过在网络侧的配置能够实现在釆用小于 5.12 秒的 MCCH修改周期时, 仍然能保证感兴趣接收 MBMS业务数据的 UE的前向 兼容性,使得 UE可以对这种短 MCCH修改周期的 MBMS业务数据进行识 别, 提高用户体验, 从而解决了 UE的前向兼容性问题。
如无具体说明,本发明实施例的 MBMS是指演进的 MBMS即 eMBMS, AS是指 GCSE AS, 传统 UE是指最小 MCCH修改周期为 5.12秒的 UE, 在本发明实施例中,普通 MCCH修改周期为 5.12s和 10.24s,传统 UE只能 读取普通 MCCH修改周期; 短 MCCH修改周期( short MCCH MP )比普通 修改周期短,短 MCCH修改周期小于 5.12秒, 比如: 80ms, 160ms, 320ms, 640ms, 1.28s, 2.56s。 普通 UE不能读取短 MCCH修改周期。
如图 3a-3b所示, 假设在一个 MBSFN区域中 PMCH1和 PMCH2上有 MBMS业务, 其中 PMCH1上有业务 LCID1, LCID2, LCID3; PMCH2上 有业务 LCID4, LCID5 , LCID6。 图 3a 中, PMCHl 的结束位置为 2: Sf-AllocEnd=2。 PMCH的子帧配置信息在 MCCH 中, 当小于 5.12秒的 MCCH修改周期内 (如 2.56s, 1.28s, 640ms, …)出现新的 MBMS业务, 图 3b中的 LCID7,且 LCID7属于语音业务,即分配在 PMCH1中,则 MCCH 中的 PMCHl的子帧配置发生变化, 如 Sf-AllocEnd=3。 对于最小 MCCH修 改周期是 5.12s的 UE,不能在小于 5.12s的时间内获取更新的 MCCH信息, 则 UE在读取 PMCH2时会发生错误, 即: 新的 PMCH2从子帧 4开始, 而 传统 UE还从子帧 3开始读取 PMCH2。
综上所述, 为了保证传统 UE (最小 MCCH修改周期为 5.12s ) 的前向 兼容性, 需要对此时网络侧发送 MSI的行为通过以下配置作出限制。
下面给出了 MCCH信息中配置的一些相关内容:
一、 MBSFN信息配置元素( MB SFN-ArealnfoList information element ) 组成结构如下所示:
-- ASN1 START MBSFN-AreaInfoList-r9 SEQUENCE (SIZE(L.maxMBSFN-Area)) OF MBSFN-AreaInfo-r9
MBSFN-AreaInfo-r9 ::= SEQUENCE {
mbsfn-AreaId-r9 INTEGER (0..255),
non-MB SFNregionLength ENUMERATED {si, s2},
notificationIndicator-r9 INTEGER (0..7),
mcch-Config-r9 SEQUENCE {
mcch-RepetitionPeriod-r9 ENUMERATED {rB2, rf64, rfl28, rf256}
mcch-Oflfset-r9 INTEGER (0..10),
mcch-ModificationPeriod-r9 ENUMERATED {rf512, rfl024},
sf-Allodnfo-r9 BIT STRING (SIZE(6)),
signallingMCS-r9 ENUMERATED {n2, n7, nl3, nl9}
},
-- ASN1STOP 二、 PMCH信息配置元素( PMCH-InfoList information element )组成结 构如下所示:
-- ASN1 START
PMCH-InfoList-r9:: = SEQUENCE (SIZE (0..maxPMCH-PerMBSFN)) OF PMCH-Info-r9
PMCH-Info-r9:: = SEQUENCE {
pmch-Config-r9 PMCH-Config-r9,
mbms-Session!nfoList-r9 MBMS-SessionInfoList-r9.
}
MBMS-SessionInfoList-r9:: = SEQUENCE (SIZE (0.. maxSessionPerPMCH)) OF MBMS-SessionInfo-r9
MBMS-SessionInfo-r9:: = SEQUENCE {
tmgi-r9 TMGI-r9,
sessionId-r9 OCTET STRING (SIZE (1)) OPTIONAL, - Need OR logicalChannelIdentity-r9 INTEGER (0..maxSessionPerPMCH- 1 ),
}
PMCH-Config-r9:: = SEQUENCE {
sf-AllocEnd-r9 INTEGER (0..1535),
dataMCS-r9 INTEGER (0..28),
mch-SchedulingPeriod-r9 ENUMERATED {
rf8, rfl6, rB2, rf64, rfl28, rf256, rf512, rfl024}, 除去上面一和二的配置之外, 还包括: 当在小于 5.12秒的 MCCH修改 周期内, 网络侧改变了 MBMS的 dataMCS, 即 PMCH数据的调制编码方案 ( MCS, Modulation Coding and Scheme ), 或者网络侧改变了 MBSFN的子 帧分配模式,如 OneFrame和 FourFrames分配方式的变化,都会改变 PMCH 数据的内容, 从而影响传统 UE接收 MBMS数据。 为了保证传统 UE的前 向兼容性, 对网络侧作出以下限定, 以确保 PMCH数据的内容不会被随意 改变:
当某个 MBSFN area上包括多个 PMCH (每个 PMCH按序排列, 如图 3a-3b所示, 根据 MBSFN子帧编号从小到大, 依次编号, 按序排列), 且 当 MCCH MP小于 5.12s, 即: 小于 Rel9的最短 MCCH MP的时候, 有如 下配置要求:
1 ) 除了最后一个 PMCH, 每个 PMCH 的结束子帧只能在 MCCH MP=5.12s的时候改变,最后一个 PMCH的结束子帧可以在当前的短 MCCH MP上爹改;
2 )每个 PMCH的 MCS只能在 MCCH MP=5.12s的时候改变;
3 ) MBSFN subframe allocation pattern只能在 MCCH MP=5.12s的时候 改变;
4 )每个 PMCH上可以增加和减少 MTCH(每个 MTCH对应一个 LCID ), 也可以调整某个 /某些 MTCH 所占用的 MBSFN 子帧, 但除了最后一个 PMCH, 每个 PMCH所占用的子帧数目的改变, 即: 每个 PMCH所占用的 MBSFN子帧的数目和开始 /结束子帧的编号只能在 MCCH MP=5.12s的时候 改变。
当该 PMCH上承载了 1个或多个 MTCH, 当增加 1个或多个 MTCH, 也就是有 1个 /多个业务开始( session start ), 如: LCID X。 如果当前 PMCH 所配置的子帧数目无法承载所新增的 MTCH: 需要考虑新增的 MTCH的优 先级, 如果为高优先级 MTCH, 则抢占现有 MTCH的子帧资源, 即时更新 MCCH, MSI和 PMCH数据; 否则, 等待到当前 5.12s的 MCCH MP结束, 网络侧再更新 MCCH, MSI和 PMCH数据。
有鉴于上述本发明所包括的主要内容的描述, 以下对本发明实施例进 行描述。
本发明实施例提供的一种更新 MCCH信息的方法, 其实现基本原理如 图 4所示, 其中传统 UE是指最小 MCCH修改周期为 5.12秒的 UE, 包括 如下步骤:
步骤 101、 网络设备需要在短 MCCH修改周期更新 MCCH内容。
本步骤中, 相对于所述短 MCCH修改周期, 比如可以为小于 5.12秒的 修改周期而言, 普通 MCCH修改周期, 可以为等于 5.12秒的 MCCH修改 周期, 不做赘述。
所述网络设备包括以下至少一种: eNB, MCE。
所述小于 5.12秒是指以下任意一种: 2.56s, 1.28s, 640ms, 320ms, 160ms, 80ms。
步骤 102, 更新的内容是否与资源配置有关,如果是, 则转向步骤 103, 否则, 转向步骤 104。
所述资源配置包括以下一种或多种: 子帧分配结束 sf-AllocEnd、 数据 调制编码方案 dataMCS、 子帧分配 subframeAllocation或 MBSFN子帧分配 模式 MSAP。
步骤 103, 更新的 MBMS业务是否具有高优先级, 如果是, 转向步骤
104, 否则, 转向步骤 105。
所述高优先级是指比现有 MCCH上的 MBMS业务的优先级高。
步骤 104, 网络设备选择在短 MCCH修改周期更新 MCCH信息。
本步骤中, 网络设备除了更新 MCCH信息, 还可以进一步更新 MBMS 调度信息和 /或 PMCH数据。 这里,针对更新的 MBMS业务具有高优先级,则网络设备更新 MCCH, 调度信息和 PMCH数据, 需要注意的是: 本步骤更新 MCCH, MBMS调度 信息和 /或 PMCH数据可能对传统 UE产生影响, 如传统 UE无法正常接收 感兴趣的 MBMS业务。
步骤 105, 网络设备选择在普通 MCCH修改周期更新 MCCH信息。 本步骤中, 网络设备除了更新 MCCH信息, 还可以进一步更新 MBMS 调度信息和 /或 PMCH数据。
所述 5.12s是指当前的 MCCH修改周期对应的 5.12s. 例如当前 MCCH MP=2.56s, 则当前 MCCH MP结束后, 继续等待 2.56s后, 再更新 MCCH, MSI和 PMCH数据.
总之, 在短 MCCH MP ( MCCH MP小于 5.12s ), 除了高优先级业务, 不允许改变 MCCH内容, 即:仅允许在普通 MCCH MP ( MCCH MP=5.12s ) 上改变的 MCCH内容, 包括以下内容的一个或多个:
1 )每个 PMCH的 MCS只能在 MCCH MP=5.12s的时候改变;
2 )该 MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式 MSAP ( MBSFN subframe allocation pattern )只能在 MCCH MP=5.12s的时候改变;
3 ) 除了最后一个 PMCH, 每个 PMCH 的结束子帧只能在 MCCH MP=5.12s的时候改变,最后一个 PMCH的结束子帧可以在当前的短 MCCH MP上爹改;
4 )除了最后一个 PMCH,每个 PMCH所占用的 MBSFN子帧个数只能 在 MCCH MP=5.12s的时候改变。
其中: 除了最后一个 PMCH, 其他 PMCH的结束子帧不能改变。 所述 PMCH的结束子帧不改变, 是指: PMCH的结束子帧的编号不能改变, 即: sf-AllocEnd的数值不能改变。
基于上述方法实施例的基本实现原理, 以下以三个具体应用场景进行 举例描述。应用场景分别为 MBMS会话开始( session start )的场景、 MBMS 会话结束( MBMS session stop ) 的场景、 MBMS会话更新 ( MBMS session update ) 的场景进行举例描述。
方法实施例一:
针对一个 MBSFN区域中 MBMS业务分布在多个 PMCH上,有 MBMS session start的场景, 实现的方法如图 5所示, 包括:
步骤 201, 在小于 5.12秒 MCCH修改周期内有 MBMS session start。 所述 MBMS session不是最后一个 PMCH上的 MTCH;如果所述 MBMS session在最后一个 PMCH上, 则不改变当前其他 PMCH的起始位置,传统 UE读到该 MBMS session调度信息, 因为不能识别, UE可以直接丟弃。 所 述 MBMS session导致以下任意一种或多种参数变化: dataMCS, sf-AllocEnd, MSAP。
步骤 202, MBMS UE接收 MCCH信息。
所述 MBMS UE是指正在接收或感兴趣接收 MBMS业务的 UE; 其中 传统 UE不能在小于 5.12s的 MCCH MP内接收更新的 MCCH信息, 即传 统 UE接收的是尚未更新的 MCCH信息。
步骤 203, MBMS业务是否具有高优先级, 如果是, 转向步骤 204, 否 则转向步骤 205。
所述 MBMS 业务的高优先级可以由网络侧通过 MBMS 的月良务质量 ( QoS )信息确定, 如分配和保留优先级(ARP, Allcation and Retention Priority )参数信息。
步骤 204, 网络设备向 UE发送更新的 MCCH信息, MBMS调度信息 和 /或 PMCH数据。
所述更新的 MCCH信息,调度信息和 /或 PMCH数据可能影响传统 UE, 例如传统 UE 可能无法读取更新的 MCCH, MSI, 和 /或不能读取更新的 PMCH数据。
步骤 205, 网络设备等待 5.12秒的 MCCH修改周期结束后再发送更新 的 MCCH信息, 调度信息 MSI和 /或 PMCH数据。
所述更新不影响传统 UE, 即传统 UE 可以正常读取更新的 MCCH, MSI和 /或 PMCH数据。
方法实施例二:
针对一个 MBSFN区域中 MBMS业务分布在一个或多个 PMCH上,有 MBMS session sto 的场景, 实现的方法如图 6所示, 包括:
步骤 301, 在小于 5.12秒 MCCH修改周期内有 MBMS Session stop。 所述 MBMS session sto 是指 MBMS业务结束。
步骤 302, MBMS UE接收 MCCH信息。
步骤 303, 网络设备等待 5.12秒 MCCH修改周期结束后再更新 MCCH 信息, MBMS调度信息和 /或 PMCH数据。
如果上述 MBMS session位于 MCCH中最后一个 PMCH的 MTCH, 则 网络设备及时更新 MCCH和 MSI, 因为该 MBMS session在 MSI中对传统 UE接收更新的 MSI影响不大, 即传统 UE可以忽略该 MBMS session的变 化; 否则网络设备等待 5.12s的 MCCH MP之后再更新 MCCH, MSI和 /或 PMCH数据。
方法实施例三:
针对一个 MBSFN区域中 MBMS业务分布在一个或多个 PMCH上,有 MBMS session update的场景, 实现的方法如图 7所示, 包括:
步骤 401, 在小于 5.12 秒的 MCCH修改周期内发生 MBMS session update。
所述 MBMS session update包括以下任意一种或多种: Sf-AllocaEnd, dataMCS, MSAP。 步骤 402, MBMS UE接收 MCCH信息。
步骤 403,更新的 MBMS业务是否为高优先级,如果是,转向步骤 404, 否则, 转向步骤 405。
步骤 404, 网络设备更新 MCCH信息, MBMS调度信息和 /或 PMCH 数据。
步骤 405, 网络设备等待 5.12秒的 MCCH修改周期结束后再发送更新 的 MCCH信息, MBMS调度信息和 /或 PMCH数据。
如果上述 MBMS session update 改变了当前 PMCH 的子帧位置, 且 PMCH不是 MCCH上最后一个, 则所述网络设备等待当前 5.12s的 MCCH MP结束, 再更新 MCCH, MSI和 /或 PMCH数据; 否则, 网络设备及时更 新 MCCH, MSI和 /或 PMCH数据。
方法实施例四:
本发明实施例提供一种更新 MCCH信息的方法, 该方法包括: 当一个 MBSFN区域配置一条 MCCH信道和配置多个 PMCH信道, 网 络侧在短多播控制信道 MCCH修改周期需要更新 MCCH信息时候,需要遵 循以下一种或多种准则:
每个 PMCH的数据调制编码方式不能在短 MCCH修改周期改变,即只 能在所述普通 MCCH修改周期时改变;
MCCH 所对应的 MBSFN 区域的 MBSFN 子帧分配模式不能在短 MCCH修改周期改变, 即只能在所述普通 MCCH修改周期时改变;
除了最后一个 PMCH,每个 PMCH的结束子帧不能在短 MCCH修改周 期改变, 即只能在所述普通 MCCH修改周期时改变;
最后一个 PMCH的结束子帧可以在短 MCCH修改周期上改变; 在本发明实施例一优选实施方式中, 所述普通 MCCH修改周期为等于 5.12秒的 MCCH修改周期。 在本发明实施例一优选实施方式中,除了最后一个 PMCH,每个 PMCH 所占用的 MBSFN子帧个数只能在所述普通 MCCH修改周期时改变。
对应上述网络侧的方法实施例描述, 本发明实施例还提供了一种网络 设备, 如图 8所示, 所述网络设备包括: 判断单元 11、 选择处理单元 12、 发送单元 13; 其中, 判断单元 11配置为在短多播控制信道 MCCH修改周 期需要更新 MCCH信息,判断更新的 MCCH信息与多媒体广播多播 MBMS 业务数据的资源配置变更是否有关, 当更新的 MCCH信息与 MBMS业务 数据的资源配置变更有关时, 通知选择处理单元 12执行处理。 选择处理单 元 12配置为根据发生资源配置变更的 MBMS业务数据的优先级, 选择在 短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期 更新 MCCH信息。 发送单元 13配置为发送更新的 MCCH信息。
在本发明实施例一优选实施方式中, 所述短 MCCH修改周期包括: 小 于 5.12秒的 MCCH修改周期;
所述普通 MCCH修改周期为等于 5.12秒的 MCCH修改周期。
在本发明实施例一优选实施方式中, 所述资源配置包括以下一种或多 种:
子帧分配结束;
数据调制编码方式;
子帧分配个数;
单频网多媒体广播多播 MBSFN子帧分配模式。
在本发明实施例一优选实施方式中, 所述网络设备还包括:
配置单元, 配置为设置在所述短 MCCH修改周期, 除了高优先级的
MBMS业务数据, 不允许改变 MCCH内容, 仅允许在普通 MCCH修改周 期改变 MCCH内容, 包括以下内容的一个或多个:
每个 PMCH的数据调制编码方式只能在所述普通 MCCH修改周期时改 变;
MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式只能在所述普 通 MCCH修改周期时改变;
除了最后一个 PMCH,每个 PMCH的结束子帧只能在所述普通 MCCH 修改周期时改变,最后一个 PMCH的结束子帧能在当前的短 MCCH修改周 期上修改;
除了最后一个 PMCH, 每个 PMCH所占用的 MBSFN子帧个数只能在 所述普通 MCCH修改周期时改变。
在本发明实施例一优选实施方式中, 所述网络设备在所述短 MCCH修 改周期内有 MBMS会话开始时需要更新所述 MCCH信息, 所述 MBMS会 话不在最后一个 PMCH上的情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级;
所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息。
在本发明实施例一优选实施方式中,所述网络设备在一个 MBSFN区域 中 MBMS业务分布在一个或多个 PMCH上, 所述短 MCCH修改周期内有 MBMS会话结束时需要更新所述 MCCH信息的情况下,
所述选择处理单元,还配置为在普通 MCCH修改周期更新 MCCH信息。 在本发明实施例一优选实施方式中,所述网络设备在一个 MBSFN区域 中 MBMS业务分布在一个或多个 PMCH上, 在所述短 MCCH修改周期内 有 MBMS会话更新时需要更新所述 MCCH信息的情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级;
所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息;
所述 MBMS会话更新包括:子帧分配结束、数据调制编码方式、 MBSFN 子帧分配模式中的一种或多种。
就用户侧而言,本发明实施例还提供一种更新 MCCH信息的接收方法, 所述方法包括: 用户侧接收更新的 MCCH信息。
这里, 所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS业务数据的优先级,选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息。
在本发明实施例一优选实施方式中, 所述方法还包括:
所述用户侧接收到更新的 MCCH信息,根据所述更新的 MCCH信息读 取更新的 MBMS调度信息, 根据所述更新的 MCCH和所述更新的 MBMS 调度信息读取更新的 PMCH数据。
对应上述用户侧的方法实施例描述, 本发明实施例还提供了一种用户 设备, 如图 9所示, 所述用户设备包括:
接收单元 21, 配置为用户侧接收更新的 MCCH信息。
这里, 所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS业务数据的优先级,选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息。
在本发明实施例一优选实施方式中, 所述用户设备还包括:
读取单元, 配置为接收到更新的 MCCH信息, 根据所述更新的 MCCH 信息读取更新的 MBMS调度信息, 根据所述更新的 MCCH和所述更新的 MBMS调度信息读取更新的 PMCH数据。
本发明实施例还提供了一种更新 MBMS业务数据的系统, 如图 10所 示, 所述系统包括: UE30和网络设备 40。 其中, UE30配置为接收更新的 MCCH信息。网络设备 40配置为根据 MBMS业务优先级,选择在短 MCCH 修改周期向 UE30发送更新的 MCCH信息;或者在普通 MCCH修改周期向 UE30发送更新的 MCCH信息。
网络设备 40包括 MCE、 eNB中的任意一种。
UE30具体包括:
接收单元 31配置为用户侧接收更新的 MCCH信息;
读取单元 32配置为接收到更新的 MCCH信息,根据所述更新的 MCCH 信息读取更新的 MBMS调度信息, 根据所述更新的 MCCH和所述更新的 MBMS调度信息读取更新的 PMCH数据。
网络设备 40具体包括:
判断单元 41 配置为在短多播控制信道 MCCH 修改周期需要更新 MCCH信息, 判断更新的 MCCH信息与多媒体广播多播 MBMS业务数据 的资源配置变更是否有关, 当更新的 MCCH信息与 MBMS业务数据的资 源配置变更有关时, 通知选择处理单元 12执行处理;
选择处理单元 42配置为根据发生资源配置变更的 MBMS业务数据的 优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更新 MCCH信息;
发送单元 43配置为发送更新的 MCCH信息。
本文涉及的缩略语如下所示:
EPS: Evolved Packet System, 演进的分组系统;
MAC: Media Access Control, 媒体接入控制;
MBMS: Multimedia Broadcast/Multicast Service,多媒体广播 /多播服务; GCSE: Group Communication Service Enabler, 组通信月良务能力;
BM-SC: Broadcast Multicast - Service Centre, 广播多播服务中心;
MBSFN: MBMS over a Single Frequency Network, 单频网 MBMS;
MCH: Multicast Channel, 多播信道;
MCCH ulticast Control Channel, 多播控制信道;
MS AP BSFN Subframe Allocation Pattern, MBSFN子帧分配模式;
PMCH:Physical Multicast Channel, 物理多播信道;
MCE: Multicell/Multicast Coordination Entity, 多小区 /多播协作实体;
MCS odulation Coding and Scheme, 调制编码方案;
MME: Mobility Management Entity, 移动管理实体;
MSI: MCH Scheduling Information, MCH调度信息;
MTCH:Multicast Traffic Channel, 多播业务信道;
QoS: Quality of Service, 服务质量;
TMGI: Temporary Mobile Group Identity, 临时移动组标识。
本发明实施例所述集成的模块如果以软件功能模块的形式实现并作为 独立的产品销售或使用时, 也可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明实施例的技术方案本质上或者说对现有技术做出 贡献的部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一 个存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算 机、 服务器、 或者网络设备等)执行本发明各个实施例所述方法的全部或 部分。 而前述的存储介质包括: U盘、 移动硬盘、 只读存储器 (ROM, Read-Only Memory ), 随机存取存 4诸器 ( RAM, Random Access Memory )、 磁碟或者光盘等各种可以存储程序代码的介质。 这样, 本发明实施例不限 制于任何特定的硬件和软件结合。
相应的, 本发明实施例还提供一种计算机存储介质, 其中存储有计算 机程序, 该计算机程序用于执行本发明实施例的更新 MCCH信息的方法及 更新 MCCH信息的接收方法。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 工业实用性
釆用本发明实施例, 由于针对短 MCCH修改周期需要更新的 MCCH 信息, 可以根据发生资源配置变更的 MBMS业务数据的优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更 新 MCCH信息, 因此, 使得更新的 MCCH信息由网络侧发送到 UE侧后, 能被 UE接收后正确读取, 从而解决了 R12不缩短 MCCH最小周期, 而在 13缩短最小 MCCH周期, 对 R12的 UE可能产生的前向兼容性问题。

Claims

权利要求书
1、 一种更新多媒体广播多播控制信道信息的方法, 所述方法包括: 网络侧在短多播控制信道 MCCH修改周期需要更新 MCCH信息,更新 的 MCCH信息与多媒体广播多播 MBMS业务数据的资源配置变更有关时, 网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新 MCCH信息; 或者, 选择在普通 MCCH修改周期更 新 MCCH信息;
网络侧发送更新的 MCCH信息。
2、 根据权利要求 1所述的方法, 其中, 所述方法还包括:
所述短 MCCH修改周期包括: 小于 5.12秒的 MCCH修改周期; 所述普通 MCCH修改周期为: 等于 5.12秒的 MCCH修改周期。
3、 根据权利要求 1或 2所述的方法, 其中, 所述资源配置包括以下一 种或多种:
子帧分配结束;
数据调制编码方式;
子帧分配个数;
单频网多媒体广播多播 MBSFN子帧分配模式。
4、 根据权利要求 1或 2所述的方法, 其中, 所述方法还包括: 在所述短 MCCH修改周期, 除了高优先级的 MBMS业务数据, 不允 许改变 MCCH内容, 仅允许在普通 MCCH修改周期改变 MCCH内容, 包 括以下内容的一个或多个:
每个 PMCH的数据调制编码方式只能在所述普通 MCCH修改周期时改 变;
MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式只能在所述普 通 MCCH修改周期时改变; 除了最后一个 PMCH,每个 PMCH的结束子帧只能在所述普通 MCCH 修改周期时改变,最后一个 PMCH的结束子帧能在当前的短 MCCH修改周 期上修改;
除了最后一个 PMCH, 每个 PMCH所占用的 MBSFN子帧个数只能在 所述普通 MCCH修改周期时改变。
5、 根据权利要求 1或 2所述的方法, 其中, 在所述短 MCCH修改周 期内有 MBMS会话开始时需要更新所述 MCCH信息, 所述 MBMS会话不 在最后一个 PMCH上;
所述方法还包括:
网络侧通过 MBMS的 务质量 QoS信息确定 MBMS业务数据的优先 级;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的是高优先级 时, 在短 MCCH修改周期更新 MCCH信息;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的不是高优先 级时, 在普通 MCCH修改周期更新 MCCH信息。
6、根据权利要求 1或 2所述的方法,其中,一个 MBSFN区域中 MBMS 业务分布在一个或多个 PMCH上, 在所述短 MCCH修改周期有 MBMS会 话结束时需要更新所述 MCCH信息;
所述方法还包括:
网络设备在普通 MCCH修改周期更新 MCCH信息。
7、根据权利要求 1或 2所述的方法,其中,一个 MBSFN区域中 MBMS 业务分布在一个或多个 PMCH上, 在所述短 MCCH修改周期有 MBMS会 话更新时需要更新所述 MCCH信息;
所述方法还包括:
网络侧通过 MBMS的 务质量 QoS信息确定 MBMS业务数据的优先 级;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的是高优先级 时, 在短 MCCH修改周期更新 MCCH信息;
网络侧在判断发生所述资源配置变更的 MBMS业务数据的不是高优先 级时, 在普通 MCCH修改周期更新 MCCH信息;
所述 MBMS会话更新包括:子帧分配结束、数据调制编码方式、 MBSFN 子帧分配模式中的一种或多种。
8、 一种网络设备, 所述网络设备包括: 判断单元、 选择处理单元、 发 送单元; 其中,
判断单元, 配置为在短多播控制信道 MCCH修改周期需要更新 MCCH 信息, 判断更新的 MCCH信息与多媒体广播多播 MBMS业务数据的资源 配置变更是否有关, 当更新的 MCCH信息与 MBMS业务数据的资源配置 变更有关时, 通知选择处理单元执行处理;
选择处理单元, 配置为根据发生资源配置变更的 MBMS业务数据的优 先级,选择在短 MCCH修改周期更新 MCCH信息;或者,选择在普通 MCCH 修改周期更新 MCCH信息;
发送单元, 配置为发送更新的 MCCH信息。
9、 根据权利要求 8所述的网络设备, 其中, 所述短 MCCH修改周期 包括: 小于 5.12秒的 MCCH修改周期;
所述普通 MCCH修改周期为等于 5.12秒的 MCCH修改周期。
10、 根据权利要求 8或 9所述的网络设备, 其中, 所述资源配置包括 以下一种或多种:
子帧分配结束;
数据调制编码方式;
子帧分配个数; 单频网多媒体广播多播 MBSFN子帧分配模式。
11、 根据权利要求 8或 9所述的网络设备, 其中, 所述网络设备还包 括:
配置单元, 配置为设置在所述短 MCCH修改周期, 除了高优先级的 MBMS业务数据, 不允许改变 MCCH内容, 仅允许在普通 MCCH修改周 期改变 MCCH内容, 包括以下内容的一个或多个:
每个 PMCH的数据调制编码方式只能在所述普通 MCCH修改周期时改 变;
MCCH所对应的 MBSFN区域的 MBSFN子帧分配模式只能在所述普 通 MCCH修改周期时改变;
除了最后一个 PMCH,每个 PMCH的结束子帧只能在所述普通 MCCH 修改周期时改变,最后一个 PMCH的结束子帧能在当前的短 MCCH修改周 期上修改;
除了最后一个 PMCH, 每个 PMCH所占用的 MBSFN子帧个数只能在 所述普通 MCCH修改周期时改变。
12、 根据权利要求 8或 9所述的网络设备, 其中, 所述网络设备在所 述短 MCCH修改周期有 MBMS会话开始时需要更新所述 MCCH信息, 所 述 MBMS会话不在最后一个 PMCH上的情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级;
所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息。
13、 根据权利要求 8或 9所述的网络设备, 其中, 所述网络设备在一 个 MBSFN区域中 MBMS业务分布在一个或多个 PMCH上,所述短 MCCH 修改周期有 MBMS会话结束时需要更新所述 MCCH信息的情况下,
所述选择处理单元,还配置为在普通 MCCH修改周期更新 MCCH信息。
14、 根据权利要求 8或 9所述的网络设备, 其中, 所述网络设备在一 个 MBSFN 区域中 MBMS 业务分布在一个或多个 PMCH 上, 在所述短 MCCH修改周期有 MBMS会话更新时需要更新所述 MCCH信息的情况下, 还包括:
优先级确定单元,配置为通过 MBMS的服务质量 QoS信息确定 MBMS 业务数据的优先级;
所述选择处理单元, 还配置为在判断发生所述资源配置变更的 MBMS 业务数据的是高优先级时,在短 MCCH修改周期更新 MCCH信息;在判断 发生所述资源配置变更的 MBMS 业务数据的不是高优先级时, 在普通 MCCH修改周期更新 MCCH信息;
所述 MBMS会话更新包括:子帧分配结束、数据调制编码方式、 MBSFN 子帧分配模式中的一种或多种。
15、 一种更新多媒体广播多播控制信道信息的接收方法, 所述方法包 括:
用户侧接收更新的 MCCH信息;
所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息。
16、 一种用户设备, 所述用户设备包括:
接收单元, 配置为用户侧接收更新的 MCCH信息;
所述更新的 MCCH信息为: 由网络侧根据发生资源配置变更的 MBMS 业务数据的优先级, 选择在短 MCCH修改周期更新的 MCCH信息; 或者, 选择在普通 MCCH修改周期更新的 MCCH信息 ,
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