WO2012152032A1 - Procédé et dispositif permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (mbms) - Google Patents

Procédé et dispositif permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (mbms) Download PDF

Info

Publication number
WO2012152032A1
WO2012152032A1 PCT/CN2011/084672 CN2011084672W WO2012152032A1 WO 2012152032 A1 WO2012152032 A1 WO 2012152032A1 CN 2011084672 W CN2011084672 W CN 2011084672W WO 2012152032 A1 WO2012152032 A1 WO 2012152032A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
lcid
mac
information carrier
carrier type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/084672
Other languages
English (en)
Chinese (zh)
Inventor
谢芳
许辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012152032A1 publication Critical patent/WO2012152032A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for acquiring MBMS information. Background technique
  • the 3rd Generation Partnership Project (3GPP) proposes multimedia broadcast and multicast services (MBMS), a technology for transmitting data from one data source to multiple targets.
  • MBMS multimedia broadcast and multicast services
  • the sharing of resources including core network and access network
  • network resources especially air interface resources
  • the MBMS defined by the 3GPP can not only realize plain text low-rate message-like multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, and provide a variety of rich multimedia services, which undoubtedly conforms to the future development trend of mobile services. , providing a better prospect for the development of 3G.
  • multiple logical channels multiplex a Multicast Channel (MCH) by: transmitting a transport block ( ⁇ ) within a transmission time interval ( ⁇ ), Each transport data block corresponds to one MAC PDU (Medium Access Control Layer Protocol Data Unit). Multiple service data units can be included in one MAC PDU
  • MAC SDU these MAC SDUs can come from different logical channels, and possible logical channels include Multicast Traffic Channel (MTCH), Multicast Control Channel
  • MTCH Multicast Traffic Channel
  • MTCH Multicast Control Channel
  • MCCH Multicast Control Channel
  • the embodiments of the present invention provide a method and an apparatus for acquiring MBMS information, which are used to obtain MBMS information on different logical channels by applying to a MAC PDU carrying MBMS service data and signaling content.
  • a method for obtaining MBMS information of a multimedia broadcast and a multicast service includes the following steps: receiving a medium access control layer MAC protocol data unit PDU, where the MAC PDU carries a MAC header file, where the MAC header file includes at least one At least two logical channels identify LCIDs, where the MAC PDU includes at least two information packets respectively corresponding to at least two types of information carriers;
  • An apparatus for obtaining MBMS information including:
  • a transceiver unit configured to receive a medium access control layer MAC protocol data unit PDU, where the MAC PDU carries a MAC header file, where the MAC header file includes at least two logical channel identifiers LCID, where the MAC Included in the PDU are at least two information packets respectively corresponding to at least two types of information carriers;
  • a determining unit configured to determine, from the at least two types of information carriers, a first information carrier type corresponding to the first LCID, and based on a correspondence between the information carrier type and the information packet, from the at least two information packets Determining a first information packet corresponding to the first information carrier type;
  • An acquiring unit configured to read a first LCID of the at least two LCIDs, and from the first Obtain MBMS information in a packet.
  • the information carrier type is determined according to the MAC header file carried in the MAC PDU, and then the bearer corresponding to the type of the information carrier is
  • the MBMS information is obtained in the information packet in the MAC PDU, so that the MBMS information on different logical channels is obtained by being applied to the MAC PDU that carries the MBMS service data and the signaling content, so that the MCH can be separately multiplexed when the multiple logical channels are multiplexed.
  • FIG. 1 is a schematic diagram of a main structure of an apparatus for acquiring MBMS information according to an embodiment of the present invention
  • FIG. 2A is a schematic diagram of a MAC sub-header file format when a length field is 7 bits according to an embodiment of the present invention
  • 2B is a schematic diagram of a format of a MAC sub-header file when a length field is 15 bits according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a main method for obtaining MBMS information according to an embodiment of the present invention. detailed description
  • the information carrier type is determined according to the MAC header file carried in the MAC PDU, and the MBMS information is obtained from the information packet carried in the MAC PDU corresponding to the information carrier type, thereby implementing the application.
  • the MAC PDUs on the different logical channels are acquired by the MAC PDUs carrying the MBMS service data and the signaling content, so that the MBMS information in the multiple logical channels can also be separately acquired when the multiple logical channels are multiplexed with the MCH, thereby avoiding confusion.
  • the apparatus for obtaining MBMS information in the embodiment of the present invention includes a transceiver module 101, a determining module 102, and an obtaining module 103.
  • the device in the embodiment of the present invention may be a user equipment (UE).
  • UE user equipment
  • the transceiver module 101 is configured to receive a MAC PDU, where the MAC PDU carries a MAC header. And the at least two logical channel identifiers (LCIDs) are included in the MAC header file, where the MAC PDU includes at least two information packets respectively corresponding to at least two types of information carriers.
  • the MAC PDU may include a MAC header file, and the MAC header file may include at least two MAC sub-header files. Each MAC subheader file corresponds to a packet from an information carrier.
  • the determining module 102 is configured to determine, from the at least two types of information carriers, a first information carrier type corresponding to the first LCID, and based on a correspondence between the information carrier type and the information packet, from the at least two information packets Determining a first information packet corresponding to the first information carrier type.
  • the type of the information carrier may include an MTCH, an MCCH, a MAC CE, a padding, and the like. For example, if there are two MAC sub-headers in a MAC header file, and each MAC sub-header file contains an LCID, the determining module 102 first determines the first information carrier corresponding to the first LCID in the first MAC sub-header file.
  • the notification obtaining module 103 acquires the MBMS information from the first information packet, and then the determining module 102 continues to determine the second in the second MAC sub-header file.
  • the second type of information carrier corresponding to the LCID corresponding to the LCID.
  • the determining module 102 may sequentially determine the first information carrier type and the second information carrier type corresponding to the first LCID in the first MAC sub-header file and the second LCID in the second MAC sub-header file, respectively, and determine The first information packet and the second information packet respectively corresponding to the first information carrier type and the second information carrier type are described, and then the obtaining module 103 acquires the MBMS information from the first information packet and the second information packet respectively.
  • the MAC sub-header file format in the embodiment of the present invention is shown.
  • 2A shows that the length field L is 7 bits
  • FIG. 2B shows that the length field is 15 bits. Its
  • LCID Logical channel identifier, identifying the type of information carrier it corresponds to.
  • the LCID can occupy 7 bits, and the type of the information carrier corresponding thereto can be determined by the value of the 7 bits.
  • the correspondence can be as shown in Table 1.
  • the MAC control element MAC Control Element, MAC CE
  • DSI Dynamic Scheduling Infomation
  • the service quality is divided into a group. Each different group corresponds to one MCH.
  • the LCID identifiers can be reused in different MCHs. That is, the same LCID value can represent different service types in different MCHs. More than 125 services are represented by multiple MCHs.
  • L Length field, which identifies the length of the corresponding MAC SDU or MAC control element.
  • the length field is 7 bits. The length field can be used to indicate the length of the corresponding MAC SDU or MAC CE and the location in the MAC PDU.
  • F Format field, used to indicate the size of the length field. If the value of F is 0, it means that the length field is 7 bits; if the value of F is 1, it means that the length field is 15 bits. If the value of the corresponding LCID is 0000001, indicating that the information carrier is a MAC CE, the F field can be used as a reserved field with a value of 0.
  • E Extended field, indicating whether there are other MAC sub-headers in this MAC header file. Such as If the value of E is 0, it means that it is a MAC SDU in the next byte, or a MAC CE, or a padding packet; if the value of E is 1, it means that there is a MAC sub-header file in the next byte.
  • the determining module 102 can know the type of the corresponding information carrier according to the value of the LCID field in the MAC sub-header file.
  • the determining module 102 may also determine a specific location of the information packet corresponding to the MAC sub-header file according to the value of the L field in the MAC sub-header file.
  • the information packet in the embodiment of the present invention may be different types of information packets such as MAC SDU, MAC CE, and Padding.
  • the unit of the MAC PDU is generally a byte. If the last byte cannot fill the data, it can be supplemented with 0, that is, Padding is added, and the bits in Padding are generally all 0s. If a MAC header file contains a plurality of MAC sub-header files, the determining module 102 can sequentially determine the type of information carrier corresponding to the LCIDs in the plurality of MAC sub-header files, respectively.
  • the obtaining module 103 is configured to read a first LCID of the at least two LCIDs, and obtain MBMS information from the first information packet. For example, the obtaining module 103 reads the MAC header file from the MAC PDU received by the transceiver module 101.
  • the MAC header file may include multiple MAC sub-header files, and the determining module 102 determines that the logical channel type corresponding to a MAC sub-header file is MTCH.
  • the corresponding information packet is the MAC SDU
  • the determining module 102 determines the specific location of the corresponding MAC SDU in the MAC PDU
  • the obtaining module 103 obtains the MBMS information in the corresponding MAC SDU according to the information determined by the determining module 102. .
  • An embodiment of the present invention further provides a system for acquiring MBMS information, including the apparatus for acquiring MBMS information and a sending apparatus.
  • the sending device is configured to send the MBMS information to the device that obtains the MBMS information.
  • the MBMS information in the embodiment of the present invention may be carried in the MAC PDU.
  • the transmitting device in the embodiment of the present invention may be an eNB (base station;).
  • the eNB may send a MAC PDU to the UE by using a system broadcast message, and the UE reads the content of the MAC header file from the MAC PDU, and is included according to each MAC sub-header file in the MAC header file.
  • the information determines the type of the information carrier to which it corresponds, and determines the corresponding information packet according to the type of the information carrier, and reads the MBMS information from the determined information packet.
  • the eNB may be further configured to: before the system broadcast message is sent to the UE, set an LCID corresponding to each information carrier type in the MAC sub-header file according to the type of the information carrier, and according to the information packet corresponding to each information carrier in the MAC PDU The location in the setting sets the value of L in the MAC subheader file.
  • the MAC CE when setting up a MAC PDU, can be set to the front, that is, the location closest to the MAC sub-header file, and then MCCH and MTCH are set in sequence, and Padding is added if there are unfilled bytes. Since the MAC CE carries dynamic scheduling information, it is more important than MCCH/MTCH, so it can be placed in front of the MCCH/MTCH. However, it is also possible to set it in other orders without following this order. When placing the MAC sub-header file, you can also first place the sub-header file corresponding to the MAC CE, and then set the MAC sub-header files corresponding to MCCH and MTCH in turn, or you can set them in other order. The arrangement in any order is within the scope of the invention as long as it does not depart from the design concept of the invention.
  • Step 301 Receive a MAC PDU, where the MAC PDU carries a MAC header file, and the MAC header file includes at least two LCIDs.
  • the MAC PDU includes at least two information packets respectively corresponding to at least two types of information carriers.
  • Step 302 Read a first LCID of the at least two LCIDs.
  • Step 303 Determine a first information carrier type corresponding to the first LCID from the at least two types of information carriers.
  • Step 304 Determine, according to a correspondence between the information carrier type and the information packet, a first information packet corresponding to the first information carrier type from the at least two information packets.
  • Step 305 Obtain MBMS information from the first information packet.
  • the information carrier is determined according to the MAC header file carried in the MAC PDU. And acquiring MBMS information from a packet carried in the MAC PDU corresponding to the information carrier type, thereby obtaining MBMS information by using a MAC PDU applied to carry MBMS service data and signaling content, so as to obtain When multiple logical channels are multiplexed with the MCH, MBMS information in different logical channels can also be acquired separately.
  • the embodiment of the present invention provides a MAC header file format applied to an MBMS service, and the LCID occupies 7 bits, which can represent not only the type of the information carrier but also 125 types of services, so as to ensure that data of different service types are not It will be confused to make the data transfer process more reliable.
  • embodiments of the present invention can be provided as a method, system, or computer program product.
  • the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • 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 and optical storage, etc.) in which computer usable program code is embodied.
  • 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 apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded into a computer or other programmable data processing device Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing, such that instructions executed on a computer or other programmable device are provided for implementing a process or processes in a flowchart and/or Or block diagram the steps of a function specified in a box or multiple boxes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (MBMS pour Multimedia Broadcast and Multicast Service) qui peut être appliqué dans les informations de service MBMS sur différents canaux logiques par l'intermédiaire d'une unité de données de protocole de contrôle d'accès au support (MACPU pour Medium Access Control Protocol Data Unit) qui peut être appliquée dans le transport des données de service MBMS et d'un contenu de signalisation. Le procédé consiste à : recevoir l'unité MACPU, l'unité MACPDU comportant un fichier d'en-tête de contrôle MAC, le fichier d'en-tête de contrôle MAC comportant au moins deux identifiants de canal logique (LCID pour Logical Channel IDentifier), et l'unité MACPDU comprenant au moins deux paquets d'information correspondant respectivement à au moins deux types de support d'informations ; lire le premier identifiant LCID ; déterminer un premier type de support d'informations correspondant au premier identifiant LCID ; déterminer entre les deux paquets d'informations ou plus un premier paquet d'informations correspondant au premier type de support d'informations sur la base de la relation correspondante entre le type de support d'informations et le paquet d'informations ; et acquérir les informations de service MBMS du premier paquet d'informations. La présente invention se rapporte également à un dispositif destiné à être utilisé lors de la mise en œuvre du procédé.
PCT/CN2011/084672 2011-09-29 2011-12-26 Procédé et dispositif permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (mbms) Ceased WO2012152032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110302243A CN102333281A (zh) 2011-09-29 2011-09-29 一种获取mbms信息的方法及装置
CN201110302243.7 2011-09-29

Publications (1)

Publication Number Publication Date
WO2012152032A1 true WO2012152032A1 (fr) 2012-11-15

Family

ID=45484858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/084672 Ceased WO2012152032A1 (fr) 2011-09-29 2011-12-26 Procédé et dispositif permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (mbms)

Country Status (2)

Country Link
CN (1) CN102333281A (fr)
WO (1) WO2012152032A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106559808B (zh) * 2015-09-28 2020-09-29 中兴通讯股份有限公司 媒体接入控制层处理方法及装置
CN108307319B (zh) * 2016-08-09 2021-08-27 夏普株式会社 用户设备、基站和相关方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009054655A2 (fr) * 2007-10-23 2009-04-30 Lg Electronics Inc. Procédé de transmission de données de canal de commande commun
CN101931872A (zh) * 2009-06-26 2010-12-29 中兴通讯股份有限公司 一种mbms中的逻辑信道标识传输方法和系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873530B (zh) * 2009-04-23 2016-08-03 电信科学技术研究院 一种信息获取方法及装置
US8457033B2 (en) * 2009-06-19 2013-06-04 Innovative Sonic Corporation Method and apparatus for handling MBMS dynamic scheduling information
CN102036169B (zh) * 2009-09-25 2013-10-02 电信科学技术研究院 一种确定mbms信息的方法、系统和装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009054655A2 (fr) * 2007-10-23 2009-04-30 Lg Electronics Inc. Procédé de transmission de données de canal de commande commun
CN101931872A (zh) * 2009-06-26 2010-12-29 中兴通讯股份有限公司 一种mbms中的逻辑信道标识传输方法和系统

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Medium Access Control (MAC) protocol specification (Release 10)", 3GPP TS 36.321 V10.2.0, June 2011 (2011-06-01) *
HUAWEI ET AL.: "Capturing MBMS agreements in MAC", 3GPP TSG-RAN WG2 MEETING #67BIS, R2-096157, 16 October 2009 (2009-10-16) *

Also Published As

Publication number Publication date
CN102333281A (zh) 2012-01-25

Similar Documents

Publication Publication Date Title
CN102918881B (zh) 用于传递bsr信息以辅助高效调度的方法和设备
CN101574005B (zh) 用于经由高速下行链路共享信道发射和接收公共逻辑信道和专用逻辑信道传输的方法和设备
CN101316267B (zh) 无线通讯系统中改善下行链路共用传输信道传输方法及装置
JP4526564B2 (ja) 無線プロトコル層のデータユニット処理システム
CN102111808B (zh) 一种报告缓存数据量的方法及装置
CN101483810B (zh) 演进型多媒体广播/多播业务数据发送和接收方法及设备
CN101990166B (zh) 多媒体广播组播控制信道资源分配方法和系统
WO2014026370A1 (fr) Procédé et dispositif de transmission de données
CN112752227B (zh) 一种通信方法及装置
CN102377803A (zh) 一种数据处理方法、装置和系统
CN103703829A (zh) 一种数据传输方法和装置
CN101931872B (zh) 一种mbms中的逻辑信道标识传输方法和系统
WO2013179268A1 (fr) Procédé, appareil et programme informatique pour exécuter des communications
CN102123487B (zh) 一种载波激活方法、装置和系统
CN115804201A (zh) 集中式单元和分布式单元分离架构中的数据转发
CN104469747B (zh) 接收下行数据的方法及终端
CN101931882B (zh) 多媒体广播多播业务的标识及接收方法与装置
CN101771942B (zh) 多媒体广播组播业务分组的方法，设备及系统
EP4489473A1 (fr) Procédé et appareil de traitement de paquets de données
CN102668660A (zh) 基于载波聚合的通信系统中进行数据分段的方法和装置
US20110151911A1 (en) Multimedia broadcast/multicast service system, and data transmission and reception method thereof
CN104080173B (zh) 一种lte系统中基站mac层对mbms业务的处理系统
WO2012152032A1 (fr) Procédé et dispositif permettant d'acquérir des informations de service de diffusion/multidiffusion multimédia (mbms)
WO2011153891A1 (fr) Procédé de transmission de données, station de base et terminal
CN107113908B (zh) 一种数据发送、数据处理方法和设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11865003

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11865003

Country of ref document: EP

Kind code of ref document: A1