CN101964945B - Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) - Google Patents
Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) Download PDFInfo
- Publication number
- CN101964945B CN101964945B CN200910157635.1A CN200910157635A CN101964945B CN 101964945 B CN101964945 B CN 101964945B CN 200910157635 A CN200910157635 A CN 200910157635A CN 101964945 B CN101964945 B CN 101964945B
- Authority
- CN
- China
- Prior art keywords
- retransmission
- qos
- policy
- subfield
- priority
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000011664 signaling Effects 0.000 abstract description 5
- 238000013475 authorization Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1874—Buffer management
- H04L1/1877—Buffer management for semi-reliable protocols, e.g. for less sensitive applications like streaming video
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0093—Point-to-multipoint
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明公开了一种增强型多媒体广播组播服务E-MBMS的重传方法和系统，所述重传方法包括：基站BS根据用户终端UT的服务质量QoS优先级将所有归属该BS的UT分为不同的用户群，并为不同的用户群设置重传策略；所述BS接收到用户群中一个或多个UT的重传请求后，发送所述用户群的QoS优先级、重传策略和重传的数据；所述UT按照接收到QoS优先级和重传策略接收重传的数据。本发明在尽可能降低系统中控制信令往返时延，进而降低其他UT或用户群的等待时间的情况下，在保证一定的公平性的前提下，提高E-MBMS重传效率。
The invention discloses a retransmission method and system of enhanced multimedia broadcast multicast service E-MBMS. The retransmission method includes: a base station BS assigns all UTs belonging to the BS according to the QoS priority of the user terminal UT. Set retransmission policies for different user groups; the BS sends the QoS priority, retransmission policy and Retransmitted data; the UT receives the retransmitted data according to the received QoS priority and retransmission policy. The present invention improves E-MBMS retransmission efficiency on the premise of reducing the round-trip time delay of control signaling in the system as much as possible, further reducing the waiting time of other UTs or user groups, and ensuring certain fairness.
Description
技术领域 technical field
本发明涉无线通信领域，尤其涉及一种增强型多媒体广播组播服务(Enhanced Multimedia Broadcast Multicast Service，E-MBMS)的重传方法和系统。The present invention relates to the field of wireless communication, in particular to an enhanced multimedia broadcast multicast service (Enhanced Multimedia Broadcast Multicast Service, E-MBMS) retransmission method and system.
背景技术 Background technique
在下一代的宽带无线通信网络中，具有许多最近新推出的移动多媒体业务与传统的广播业务，例如通过广播、电视发送比赛集锦视频短片的体育信息业务，手机用户通过特定的电视节目制作程序，从已有的电视信道中截取节目内容等。因为移动网络的频谱是一种有限和昂贵的资源，所以当同一个服务器的众多接收者使用同一个移动链接的时候，极易造成瓶颈现象。因此，增强型多媒体广播组播服务(E-MBMS)也就应运而生。In the next-generation broadband wireless communication network, there are many newly launched mobile multimedia services and traditional broadcast services, such as sports information services that send game highlight video clips through radio and television. Mobile phone users use specific TV program production programs. Intercept program content, etc. from existing TV channels. Because mobile network spectrum is a limited and expensive resource, bottlenecks can easily occur when many recipients of the same server use the same mobile link. Therefore, Enhanced Multimedia Broadcast Multicast Service (E-MBMS) emerges as the times require.
当E-MBMS中有基站(Base Station，BS)与用户终端(User Terminal，UT)互动、下载等服务时，可能会涉及到数据或信令的重传，此时，如何降低系统中控制信令往返时延，进而降低其他UT的等待时间，提高重传效率，是对具有E-MBMS服务的无线通信系统的挑战。When there are base station (Base Station, BS) and user terminal (User Terminal, UT) interaction, downloading and other services in E-MBMS, it may involve retransmission of data or signaling. At this time, how to reduce the control signal in the system It is a challenge to the wireless communication system with E-MBMS service to make the round-trip time delay, thereby reducing the waiting time of other UTs and improving the retransmission efficiency.
发明内容 Contents of the invention
本发明要解决的技术问题提出一种增强型多媒体广播组播服务的重传方法，能够提高E-MBMS的重传效率。The technical problem to be solved by the present invention proposes an enhanced multimedia broadcast multicast service retransmission method, which can improve the retransmission efficiency of E-MBMS.
为了解决上述技术问题，本发明提供一种增强型多媒体广播组播服务的重传方法，包括：In order to solve the above technical problems, the present invention provides a method for retransmitting enhanced multimedia broadcast multicast services, including:
基站BS根据用户终端UT的服务质量QoS优先级将所有归属该BS的UT分为不同的用户群，并为不同的用户群设置重传策略；The base station BS divides all UTs belonging to the BS into different user groups according to the QoS priority of the user terminal UT, and sets retransmission policies for different user groups;
所述BS接收到用户群中一个或多个UT的重传请求后，发送所述用户群的QoS优先级、重传策略和重传的数据；After receiving the retransmission request from one or more UTs in the user group, the BS sends the QoS priority, retransmission strategy and retransmission data of the user group;
所述UT按照接收到QoS优先级和重传策略接收重传的数据。The UT receives the retransmitted data according to the received QoS priority and retransmission policy.
进一步地，上述重传方法还可具有以下特点：Further, the above retransmission method may also have the following characteristics:
所述BS根据UT的QoS优先级将所有的UT分为不同的用户群的步骤之前，所述BS将业务划分为不同的类型，并设置与业务类型对应的QoS优先级。Before the step of classifying all UTs into different user groups according to the QoS priorities of the UTs, the BS divides services into different types and sets QoS priorities corresponding to the service types.
进一步地，上述重传方法还可具有以下特点：Further, the above retransmission method may also have the following characteristics:
所述BS发送所述用户群的QoS优先级、重传策略和重传的数据，具体包括：The BS sends the QoS priority, retransmission strategy and retransmission data of the user group, specifically including:
所述BS根据发起重传请求的UT所属用户群的QoS优先级标记QoS类型子字段；The BS marks the QoS type subfield according to the QoS priority of the user group to which the UT that initiates the retransmission request belongs;
所述BS根据发起重传请求的UT所属用户群的QoS优先级对应的重传策略标记重传策略指定子字段；The BS marks the specified subfield of the retransmission policy according to the retransmission policy corresponding to the QoS priority of the user group to which the UT that initiates the retransmission request belongs;
所述BS发送重传请求设置字段和重传的数据，其中，所述重传请求设置字段包括QoS类型子字段和重传策略指定子字段。The BS sends a retransmission request setting field and retransmitted data, wherein the retransmission request setting field includes a QoS type subfield and a retransmission policy specification subfield.
进一步地，上述重传方法还可具有以下特点：Further, the above retransmission method may also have the following characteristics:
所述BS根据所述重传策略发送重传的数据。The BS sends retransmitted data according to the retransmission strategy.
进一步地，上述重传方法还可具有以下特点：Further, the above retransmission method may also have the following characteristics:
所述UT按照接收到QoS优先级和重传策略接收重传的数据，具体是指：The UT receives retransmitted data according to the received QoS priority and retransmission strategy, specifically refers to:
若所述UT与接收到的QoS类型子字段相匹配，则所述UT按照重传策略指定子字段指示的重传策略接收重传的数据；If the UT matches the received QoS type subfield, the UT receives the retransmitted data according to the retransmission strategy indicated by the retransmission strategy specified subfield;
若所述UT与接收到的QoS类型子字段不相匹配，则所述UT在重传的时间内等待。If the UT does not match the received QoS type subfield, the UT waits within the retransmission time.
为了解决上述技术问题，本发明还提供一种增强型多媒体广播组播服务的重传系统，包括BS和归属所述BS的UT，其特征在于，In order to solve the above technical problems, the present invention also provides an enhanced multimedia broadcast multicast service retransmission system, including a BS and a UT belonging to the BS, characterized in that,
所述BS用于根据UT的QoS优先级将所有归属该BS的UT分为不同的用户群，并为不同的用户群设置重传策略；以及，用于当接收到用户群中一个或多个UT的重传请求后，发送所述用户群的QoS优先级、重传策略和重传的数据；The BS is used to divide all UTs belonging to the BS into different user groups according to the QoS priority of the UT, and set retransmission policies for different user groups; and, when receiving one or more user groups in the user group After the retransmission request of the UT, send the QoS priority, retransmission strategy and retransmission data of the user group;
所述UT用于发送重传请求后，按照从BS接收到QoS优先级和重传策略接收重传的数据。The UT is configured to receive retransmitted data according to the QoS priority and retransmission policy received from the BS after sending the retransmission request.
进一步地，上述重传系统还可具有以下特点：Further, the above retransmission system may also have the following characteristics:
所述BS进一步用于将业务划分为不同的类型，并设置与业务类型对应的QoS优先级。The BS is further used for classifying services into different types, and setting QoS priorities corresponding to the types of services.
进一步地，上述重传系统还可具有以下特点：Further, the above retransmission system may also have the following characteristics:
所述BS进一步用于根据发起重传请求的UT所属用户群的QoS优先级标记QoS类型子字段；用于根据发起重传请求的UT所属用户群的QoS优先级对应的重传策略标记重传策略指定子字段；以及，用于发送重传请求设置字段和重传的数据，其中，所述重传请求设置字段包括QoS类型子字段和重传策略指定子字段。The BS is further used to mark the QoS type subfield according to the QoS priority of the user group to which the UT that initiates the retransmission request belongs; to mark the retransmission according to the retransmission policy corresponding to the QoS priority of the user group to which the UT that initiates the retransmission request belongs A policy specification subfield; and, used to send the retransmission request setting field and retransmission data, wherein the retransmission request setting field includes a QoS type subfield and a retransmission policy specification subfield.
进一步地，上述重传系统还可具有以下特点：Further, the above retransmission system may also have the following characteristics:
所述BS进一步用于根据所述重传策略发送重传的数据。The BS is further configured to send retransmitted data according to the retransmission strategy.
进一步地，上述重传系统还可具有以下特点：Further, the above retransmission system may also have the following characteristics:
所述UT进一步用于当自身的优先级与接收到的QoS类型子字段相匹配时，按照重传策略指定子字段指示的重传策略接收重传的数据；当自身的优先级与接收到的QoS类型子字段不相匹配时，在重传的时间内等待。The UT is further used to receive retransmitted data according to the retransmission policy indicated by the specified subfield of the retransmission policy when its own priority matches the received QoS type subfield; when its own priority matches the received QoS type subfield When the QoS type subfield does not match, wait for the retransmission time.
本发明具有以下有益效果：根据服务质量(Quality of Service，QoS)优先级将UT进行分级为不同的用户群，对于不同分级下的UT或用户群采用不同的重传策略。通过定义不同的QoS优先级，实现对不同业务的区分对待，在尽可能降低系统中控制信令往返时延，进而降低其他UT或用户群的等待时间的情况下，在保证一定的公平性的前提下，提高E-MBMS重传效率。The present invention has the following beneficial effects: UTs are classified into different user groups according to Quality of Service (QoS) priorities, and different retransmission strategies are adopted for UTs or user groups under different classifications. By defining different QoS priorities, different services are treated differently, and the round-trip delay of control signaling in the system is reduced as much as possible, thereby reducing the waiting time of other UTs or user groups, while ensuring a certain degree of fairness Under the premise, the E-MBMS retransmission efficiency is improved.
其中，用户群的设置将无线通信网络内的所有UT进行分类，重传时，只对符合重传要求的用户群中的所有UT进行处理，降低了信令开销及往返时延；Among them, the user group setting classifies all UTs in the wireless communication network, and only processes all UTs in the user group that meet the retransmission requirements during retransmission, reducing signaling overhead and round-trip delay;
重传请求设置字段对不同的QoS类型设置了不同的重传策略，并在BS和UT之间进行了约定，BS根据QoS类型所指定的重传策略发送数据，UT根据约束的重传策略接收重传的数据，大大的改善了重传的效率。The retransmission request setting field sets different retransmission strategies for different QoS types, and an agreement is made between BS and UT. BS sends data according to the retransmission strategy specified by the QoS type, and UT receives data according to the constrained retransmission strategy. The retransmitted data greatly improves the efficiency of retransmission.
附图说明 Description of drawings
图1为本发明实施例的无线通信网络E-MBMS重传方法流程图；Fig. 1 is the flow chart of the wireless communication network E-MBMS retransmission method of the embodiment of the present invention;
图2为本发明实施例的E-MBMS重传的重传请求设置字段的结构图。FIG. 2 is a structural diagram of a retransmission request setting field of an E-MBMS retransmission according to an embodiment of the present invention.
具体实施方式 Detailed ways
在本发明中，BS根据UT的QoS优先级将所有归属该BS的UT分为不同的用户群，并为不同的用户群设置重传策略；BS接收到用户群中一个或多个UT的重传请求后，发送所述用户群的QoS优先级、重传策略和重传的数据；所述UT按照接收到QoS优先级和重传策略接收重传的数据。In the present invention, the BS divides all UTs belonging to the BS into different user groups according to the QoS priority of the UT, and sets retransmission strategies for different user groups; After transmitting the request, send the QoS priority, retransmission strategy and retransmission data of the user group; the UT receives the retransmission data according to the received QoS priority and retransmission strategy.
其中，BS根据QoS类型所指定的重传策略发送数据，UT根据重传策略接收重传的数据，提高了E-MBMS的重传效率。Among them, the BS sends data according to the retransmission strategy specified by the QoS type, and the UT receives the retransmission data according to the retransmission strategy, which improves the retransmission efficiency of E-MBMS.
下面结合附图及具体实施例对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1所示，本发明实施例E-MBMS的重传方法包括如下步骤：As shown in Figure 1, the retransmission method of E-MBMS in the embodiment of the present invention includes the following steps:
S101，BS确定QoS优先级数目；S101, the BS determines the number of QoS priorities;
BS可以根据系统需求，设置与业务对应的不同的优先级，例如，将所有的业务分为五种，主动授权业务、实时轮询业务、扩展的实时轮询业务、非实时轮询业务和尽力而为业务；BS can set different priorities corresponding to services according to system requirements. For example, all services are divided into five types, active authorization service, real-time polling service, extended real-time polling service, non-real-time polling service and best effort for business;
S102，BS根据UT的QoS优先级将所有的UT分为不同的用户群；S102, the BS divides all UTs into different user groups according to the QoS priorities of the UTs;
本步骤的目的是将UT根据QoS优先级进行区分，当具有重传请求时，只对相应的QoS优先级内用户群内的所有UT进行处理，而其他的QoS优先级的UT在重传的时间内等待；The purpose of this step is to distinguish the UTs according to the QoS priority. When there is a retransmission request, only all UTs in the user group in the corresponding QoS priority are processed, and the UTs with other QoS priorities are retransmitted. time waiting;
S103，BS为不同的用户群设置重传策略；S103, the BS sets retransmission policies for different user groups;
本步骤的目的是对不同的QoS优先级所对应的重传采取不同的重传方式，减少信令的交互及往返时延，例如，对于尽力而为业务，为了确保其服务质量，重传时，需要尽量保证QoS优先级所对应的用户群内的所有UT都能够正确接收到重传的数据，此时，可能需要的重传数目或混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)的进程数会较多，例如，5次，而对于主动授权业务则需要的较少，例如，1次。当然，重传策略中还可以包括其他的与重传相关的内容，而不限于本文所指定的内容；The purpose of this step is to adopt different retransmission methods for retransmissions corresponding to different QoS priorities, and reduce signaling interaction and round-trip delay. For example, for best-effort services, in order to ensure their service quality, , it is necessary to ensure that all UTs in the user group corresponding to the QoS priority can correctly receive the retransmitted data. At this time, the number of retransmissions that may be required or the number of Hybrid Automatic Repeat Request (HARQ) The number of processes will be more, for example, 5 times, but less is required for the active authorization service, for example, 1 time. Of course, the retransmission strategy can also include other retransmission-related content, not limited to the content specified in this article;
S104，BS设置重传请求设置字段，该字段包括：QoS类型子字段、重传策略指定子字段；S104, the BS sets the retransmission request setting field, which includes: a QoS type subfield and a retransmission policy specified subfield;
重传请求设置字段的结构如图2所示，其中，QoS类型子字段的作用是指示与QoS类型子字段相匹配的用户群内的所有UT按照重传策略指定的内容接收重传的数据，而其他的QoS类型则不进行处理；重传策略指定子字段的作用是按照预先确定的在BS和UT之间约定的重传策略开始重传数据，而UT则按照该策略接收数据；The structure of the retransmission request setting field is shown in Figure 2, wherein the function of the QoS type subfield is to indicate that all UTs in the user group matching the QoS type subfield receive retransmitted data according to the content specified by the retransmission policy, Other QoS types are not processed; the role of the retransmission strategy specified subfield is to start retransmitting data according to the predetermined retransmission strategy agreed between the BS and the UT, and the UT receives the data according to the strategy;
S105，BS接收UT或用户群的重传请求；S105, the BS receives a retransmission request from a UT or a user group;
其中，所述用户群的重传请求是指：该用户群的多个UT发起的重传请求；Wherein, the retransmission request of the user group refers to: a retransmission request initiated by multiple UTs of the user group;
S106，BS根据发起重传请求的UT或用户群的QoS优先级确定QoS类型子字段；S106, the BS determines the QoS type subfield according to the QoS priority of the UT or user group that initiates the retransmission request;
S107，BS根据预先确定的重传策略，标记重传策略指定子字段；S107, the BS marks the specified subfield of the retransmission strategy according to the predetermined retransmission strategy;
S108，BS发送重传请求设置字段及重传的数据；S108, the BS sends the retransmission request setting field and the retransmitted data;
其中，BS使用广播的方式，发送重传请求设置字段及重传的数据；Among them, the BS uses the broadcast method to send the retransmission request setting field and the retransmitted data;
S109，UT接收重传请求设置字段并按照重传策略接收重传的数据。S109, the UT receives the retransmission request setting field and receives the retransmitted data according to the retransmission strategy.
本步骤中，若所述UT与接收到的QoS类型子字段相匹配，则所述UT按照重传策略指定子字段指示的重传策略接收重传的数据；In this step, if the UT matches the received QoS type subfield, the UT receives the retransmitted data according to the retransmission strategy indicated by the retransmission strategy specified subfield;
若所述UT与接收到的QoS类型子字段不相匹配，则所述UT在重传的时间内等待。If the UT does not match the received QoS type subfield, the UT waits within the retransmission time.
本发明实施例的E-MBMS的重传系统，包括BS和归属所述BS的UT，The E-MBMS retransmission system in the embodiment of the present invention includes a BS and a UT belonging to the BS,
其中，所述BS用于根据UT的QoS优先级将所有归属该BS的UT分为不同的用户群，并为不同的用户群设置重传策略；以及，用于当接收到用户群中一个或多个UT的重传请求后，发送所述用户群的QoS优先级、重传策略和重传的数据；Wherein, the BS is used to divide all UTs belonging to the BS into different user groups according to the QoS priority of the UT, and set retransmission policies for different user groups; and, when receiving one or After the retransmission requests of multiple UTs, send the QoS priority, retransmission strategy and retransmission data of the user group;
所述UT用于发送重传请求后，按照从BS接收到QoS优先级和重传策略接收重传的数据。The UT is configured to receive retransmitted data according to the QoS priority and retransmission policy received from the BS after sending the retransmission request.
所述BS进一步用于将业务划分为不同的类型，并设置与业务类型对应的QoS优先级。The BS is further used for classifying services into different types, and setting QoS priorities corresponding to the types of services.
所述BS进一步用于根据发起重传请求的UT所属用户群的QoS优先级标记QoS类型子字段；用于根据发起重传请求的UT所属用户群的QoS优先级对应的重传策略标记重传策略指定子字段；以及，用于发送重传请求设置字段和重传的数据，其中，所述重传请求设置字段包括QoS类型子字段和重传策略指定子字段。The BS is further used to mark the QoS type subfield according to the QoS priority of the user group to which the UT that initiates the retransmission request belongs; to mark the retransmission according to the retransmission policy corresponding to the QoS priority of the user group to which the UT that initiates the retransmission request belongs A policy specification subfield; and, used to send the retransmission request setting field and retransmission data, wherein the retransmission request setting field includes a QoS type subfield and a retransmission policy specification subfield.
所述BS进一步用于根据所述重传策略发送重传的数据。The BS is further configured to send retransmitted data according to the retransmission strategy.
所述UT进一步用于当自身的优先级与接收到的QoS类型子字段相匹配时，按照重传策略指定子字段指示的重传策略接收重传的数据；当自身的优先级与接收到的QoS类型子字段不相匹配时，在重传的时间内等待。The UT is further used to receive retransmitted data according to the retransmission policy indicated by the specified subfield of the retransmission policy when its own priority matches the received QoS type subfield; when its own priority matches the received QoS type subfield When the QoS type subfield does not match, wait for the retransmission time.
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910157635.1A CN101964945B (en) | 2009-07-21 | 2009-07-21 | Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) |
| PCT/CN2009/075221 WO2011009254A1 (en) | 2009-07-21 | 2009-11-30 | Retransmission method and system for enhanced multimeia broadcast multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910157635.1A CN101964945B (en) | 2009-07-21 | 2009-07-21 | Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101964945A CN101964945A (en) | 2011-02-02 |
| CN101964945B true CN101964945B (en) | 2014-09-10 |
Family
ID=43498720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910157635.1A Active CN101964945B (en) | 2009-07-21 | 2009-07-21 | Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101964945B (en) |
| WO (1) | WO2011009254A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115801691B (en) * | 2022-10-25 | 2024-08-06 | 微网优联科技(成都)有限公司 | Method and device for processing data packet loss and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780255A (en) * | 2004-11-24 | 2006-05-31 | 大唐移动通信设备有限公司 | Wireless data transmission with nonuniform protection |
| CN101141158A (en) * | 2007-03-13 | 2008-03-12 | 中兴通讯股份有限公司 | Service types based power distribution method on reverse link power control channel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2057774B1 (en) * | 2006-08-23 | 2013-07-24 | Electronics and Telecommunications Research Institute | Mbms packet data transmission and receiving based on a cellular system |
| KR20080052042A (en) * | 2006-12-07 | 2008-06-11 | 삼성전자주식회사 | Method and apparatus for multicasting data |
| US20100110960A1 (en) * | 2007-03-21 | 2010-05-06 | Jung-Im Kim | Mbms data transmission and receiving in packet based on mobile communication system |
-
2009
- 2009-07-21 CN CN200910157635.1A patent/CN101964945B/en active Active
- 2009-11-30 WO PCT/CN2009/075221 patent/WO2011009254A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780255A (en) * | 2004-11-24 | 2006-05-31 | 大唐移动通信设备有限公司 | Wireless data transmission with nonuniform protection |
| CN101141158A (en) * | 2007-03-13 | 2008-03-12 | 中兴通讯股份有限公司 | Service types based power distribution method on reverse link power control channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101964945A (en) | 2011-02-02 |
| WO2011009254A1 (en) | 2011-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8588100B2 (en) | Method and apparatus for data retransmission in an enhanced multimedia broadcast and multicast service | |
| CN114760710B (en) | Method and apparatus for managing data communications in a wireless communication network | |
| CN109792587B (en) | Method and equipment for sending multicast service | |
| CN103748907B (en) | In cellular band and exempt to authorize the switching between shared frequency band | |
| US20230074542A1 (en) | Communication method and apparatus | |
| WO2011076022A1 (en) | Method and device for enhancing quality of service (qos) in wireless local area network (wlan) | |
| CN102045393A (en) | Method, equipment and system for controlling band width | |
| CN108633016B (en) | Method and device for receiving and transmitting downlink control information | |
| US20090022054A1 (en) | Apparatus and method for service flow management in a broadband wireless communication system | |
| CN107920333A (en) | Multicasting schedule method, HARQ message receiving methods, user equipment and base station | |
| CN102625461B (en) | Method and system for random access to heterogeneous network | |
| EP4057768B1 (en) | Transmission rate configuration method and apparatus | |
| CN105338646A (en) | Start control method and device for RTS/CTS mechanism | |
| CN101964945B (en) | Method and system for retransmitting enhanced multimedia broadcast multicast service (E-MBMS) | |
| Maqhat et al. | Performance analysis of fair scheduler for A-MSDU aggregation in IEEE802. 11n wireless networks | |
| CN106332153A (en) | Method and device for controlling bandwidth in WLAN (wireless local area network) | |
| CN112866125B (en) | Downlink data transmission method and device | |
| CN114765742A (en) | Multicast communication method, device and related equipment | |
| CN105050199A (en) | Uplink access method of orthogonal frequency division multiple access mechanism | |
| CN113938839B (en) | Data transmission method and device | |
| WO2010026636A1 (en) | Method for controlling communication, wireless device, and base station | |
| WO2021018213A1 (en) | Communication method and apparatus | |
| US9479351B2 (en) | Method and apparatus for providing voice service in communication system | |
| CN108134965B (en) | Method for wireless side group broadcast transmission of order broadcasting service | |
| KR101268580B1 (en) | Method and apparatus for providing multimedia broadcast multicast service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: No.105 Wengang South Road, Xinhe street, Chengnan New District, Yancheng City, Jiangsu Province (CNx) Patentee after: Yancheng hi tech Pioneer Park Co.,Ltd. Address before: 518057 Department of law, Zhongxing building, South hi tech Industrial Park, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee before: ZTE Corp. |