WO2012041166A1 - Système et procédé de transmission de rapports d'état de service de diffusion/multidiffusion multimédia - Google Patents

Système et procédé de transmission de rapports d'état de service de diffusion/multidiffusion multimédia Download PDF

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Publication number
WO2012041166A1
WO2012041166A1 PCT/CN2011/079771 CN2011079771W WO2012041166A1 WO 2012041166 A1 WO2012041166 A1 WO 2012041166A1 CN 2011079771 W CN2011079771 W CN 2011079771W WO 2012041166 A1 WO2012041166 A1 WO 2012041166A1
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WIPO (PCT)
Prior art keywords
mbms
base station
status report
uplink
bsr
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PCT/CN2011/079771
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English (en)
Chinese (zh)
Inventor
苟伟
马子江
艾建勋
王斌
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中兴通讯股份有限公司
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Publication of WO2012041166A1 publication Critical patent/WO2012041166A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present invention relates to a multimedia broadcast multicast service (MBMS) status reporting technology, and in particular, to a method and system for transmitting a multimedia broadcast multicast service status report.
  • MBMS multimedia broadcast multicast service
  • the 3rd Generation Partnership Project proposes an MBMS service, which is a technology for transmitting data from one data source to multiple targets, and implements the network (including The sharing of resources between the core network and the access network improves the utilization of network resources (especially air interface resources).
  • the MBMS service defined by 3GPP can not only realize plain text low-rate message class multicast and broadcast, but also realize high-speed multimedia service broadcast and multicast, and provide a variety of rich video, audio and multimedia services, which undoubtedly conforms to future mobile
  • 3G, 3rd Generation third-generation digital communication
  • the MBMS service is transmitted by using a Multimedia Broadcast multicast service Single Frequency Network (MBSFN).
  • MMSFN Multimedia Broadcast multicast service Single Frequency Network
  • the uplink feedback user equipment (UE, User Equipment) receives the status information.
  • the network side sends a message to the UE for the MBMS service statistics process (also called the counting process).
  • the network side sends a message containing the identifier of the MBMS service to be counted to the UE. After receiving the message, the related UE receives the message.
  • the MBMS service identifier included in the message it is determined whether the MBMS service is being received, or if the MBMS service status included in the message is an unsent MBMS service, it is necessary to determine whether it is interested in receiving the MBMS service.
  • the UE side forms a corresponding response information (the Counting Report message, that is, the message of the MBMS status report of the UE) for the MBMS service in the message, and there is currently no uniform title for the response information, which is referred to as an MBMS status report in this application file.
  • This information is mainly used as information for feeding back to the network side the MBMS service that the UE is receiving or the MBMS service that is interested in receiving.
  • FIG. 1 is a flow chart of an existing uplink scheduling request (SR, Scheduling Request). As shown in Figure 1, the existing uplink sending mechanism is briefly described as follows:
  • Step 101 The UE initiates an uplink SR, and notifies the base station that the UE has uplink data to be transmitted. In this step, it is assumed that the UE has its own SR resource and is in the connected state (RRC_connected).
  • Step 102 After receiving the SR request, the base station allocates an uplink resource to the UE.
  • the uplink resource is a resource allocated for the UE to transmit a Buffer Status Report (BSR).
  • BSR Buffer Status Report
  • the resource is relatively small and is used only for the UE to report the BSR.
  • the BSR is defined in the LTE protocol 36.321, which is divided into two types, one is a short BSR, the size is 8 bits (1 byte), and the other is a long BSR size of 24 bits (3 bytes). Therefore, the resources allocated by the base station in this step are relatively small, as long as the long BSR can be transmitted.
  • Step 103 The UE sends a BSR 4 report to the base station in the uplink resource allocated in step 102.
  • the BSR carries the size information of the uplink data that the UE needs to transmit;
  • Step 104 The base station combines the measurement result of the UE according to the received BSR of the UE, and the like. Allocate suitable uplink resources for the UE.
  • Steps 103 and 104 mainly implement the principle of performing uplink resource allocation according to the requirements of the UE, so as to avoid waste of uplink resources.
  • Step 105 The UE sends uplink data to the base station in the uplink resource allocated in step 104. It can be seen from the above process of uplink resource allocation that the process of requesting scheduling by the UE is complicated, considering the characteristics of the MBMS status report, such as a small amount of information, and the amount of data is generally fixed. The foregoing uplink resource allocation process is not applicable to the UE to report MBMS status reports. Summary of the invention
  • the main object of the present invention is to provide a method and a system for transmitting a multimedia broadcast multicast service status report, which can implement reporting of an MBMS status report by using a BSR resource allocated by the base station side for the UE.
  • a method for transmitting a multimedia broadcast multicast service status report includes:
  • the UE When the uplink data to be sent by the UE is an MBMS status report, the UE sends an MBMS status report by using the BSR resource allocated by the base station.
  • the resource for allocating a BSR to the UE is:
  • the BSR resource allocated by the base station to the UE is a resource when the long BSR format transmission requirement is met.
  • the base station is in the MBMS counting process:
  • the base station determines that at least one of the initiated MBMS counting procedures has not ended.
  • the MBMS state 4 includes at least one of the following information: information identifying an MBMS service that the UE is receiving or interested in receiving, identifying information of an MBSFN area corresponding to the MBMS status report, and identifying a count corresponding to the MBMS status report.
  • Process information includes:
  • the uplink resource is allocated to the UE;
  • the UE When the uplink data to be sent by the UE is an MBMS status report, the UE sends an MBMS status report by using the uplink resource allocated by the base station.
  • the base station is in the MBMS counting process, specifically:
  • the base station determines that at least one of the initiated MBMS counting procedures has not ended.
  • the MBMS state 4 includes at least one of the following information: information identifying an MBMS service that the UE is receiving or interested in receiving, identifying information of an MBSFN area corresponding to the MBMS status report, and identifying a count corresponding to the MBMS status report. Process information.
  • a transmitting system for a multimedia broadcast multicast service status report comprising: a receiving unit, an allocating unit, and a sending unit; the receiving unit and the allocating unit are disposed in the base station, where the sending unit is located in the UE, where
  • a receiving unit configured to receive the uplink data SR sent by the UE when the base station is in the MBMS counting process
  • An allocating unit configured to allocate a resource of the BSR to the UE
  • a sending unit configured to send an MBMS status report by using the BSR resource allocated by the allocating unit when the uplink data to be sent by the UE is an MBMS status report.
  • the allocating unit further allocates a BSR resource for the UE to meet a long BSR format transmission requirement.
  • a transmitting system for a multimedia broadcast multicast service status report comprising: a receiving unit, an allocating unit, and a sending unit; the receiving unit and the allocating unit are disposed in the base station, where the sending unit is located in the UE, where
  • a receiving unit configured to receive a Random Access Preamble sent by the UE when the base station is in the MBMS counting process
  • An allocating unit configured to allocate an uplink resource to the UE
  • a sending unit configured to send an MBMS status report by using an uplink resource allocated by the allocating unit when the uplink data to be sent by the UE is an MBMS status report.
  • the base station after receiving the notification that the UE transmits the uplink data, the base station does not directly allocate the BSR resource to the UE in the existing manner, but first determines whether it is currently in the MBMS counting process, that is, determines whether to send to the UE. The MBMS counting request, and the current MBMS counting process is not yet completed. If yes, the UE allocates a longer BSR resource (ie, 24 bits of BSR resources) as much as possible; and when the uplink data that the UE needs to send is exactly the MBMS status report. The UE will use the base station to send an MBMS status report for its assigned BSR resources.
  • a longer BSR resource ie, 24 bits of BSR resources
  • the present invention utilizes the existing SR request mechanism, combined with the characteristics of the MBMS status report, and skillfully utilizes part of the process of the existing process to realize the transmission of the MBMS status.
  • the invention has the advantages of simple process and easy implementation, and reduces interaction between the UE and the base station, thereby improving processing efficiency.
  • FIG. 1 is a flowchart of an existing uplink scheduling request
  • Embodiment 2 is a flowchart of Embodiment 1 of transmitting an MBMS status report according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 2 of transmitting an MBMS status report according to the present invention
  • FIG. 4 is a schematic structural diagram of a structure of a system for transmitting a status report of a multimedia broadcast multicast service according to the present invention
  • FIG. 5 is a schematic structural diagram of another structure of a system for transmitting a multimedia broadcast multicast service status report according to the present invention.
  • the basic idea of the present invention is: after receiving the notification that the UE transmits the uplink data, the base station does not directly allocate the BSR resource to the UE in the existing manner, but first determines whether the current MBMS counting process is performed, that is, To determine if an MBMS count request has been sent to the UE, and currently The MBMS counting process is still not completed. If yes, the UE allocates a longer BSR resource (that is, 24 bit BSR resources).
  • the uplink data that the UE needs to send is the MBMS status report
  • the UE uses the base station to The assigned BSR resource sends an MBMS status report.
  • the network side when the UE is in the connected state, and the network side allocates the SR resource on the physical uplink control channel (PUCCH, Physical Uplink Control Channel), if the network side initiates a counting process (here, the upper layer network element is actually initiated).
  • the command of the related counting process is sent to the relevant base station, and the relevant base station sends the MBMS counting command to the UE.
  • the UE needs to participate in the MBMS counting process, that is, the MBMS or the MBMS of interest needs to be reported. Give the network side.
  • the UE sends the SR request information to the base station, and after receiving the SR request information of the UE, the base station allocates the corresponding uplink resource to the UE.
  • the base station is in the MBMS counting process. Considering that the UE may use the allocated uplink resource to transmit the MBMS status report. Of course, if the counting process ends, the UE does not need to consider, the UE sends an MBMS status report to the base station in the allocated uplink resource, and the base station receives the uplink of the UE.
  • the UE After the data, it is detected whether the UE sends an MBMS status report to the base station (because the base station is in the counting process, the MBMS status report needs to be detected, and if the counting process ends, the base station does not need to perform this detection).
  • the base station detects that the UE sends an MBMS status report, the UE-initiated SR request process ends. If the base station detects that the UE sends the BSR, the base station needs to allocate the uplink resource to the UE by referring to the BSR content, and the UE sends the uplink data to the base station in the allocated uplink resource, and the base station receives the data sent by the UE.
  • the MBMS status report includes at least one of the following information: information identifying an MBMS service that the UE is receiving or interested in receiving, identifying information of an MBSFN area corresponding to the MBMS status report, and identifying a counting process corresponding to the MBMS status report. Information.
  • a counting command of the related counting process is configured by a Multi-cell/Multicast Coordination Entity (MCE), and
  • MCE Multi-cell/Multicast Coordination Entity
  • the counting command is sent to the relevant base station, and the base station sends the relevant counting command to the UE through a multicast control channel (MCCH, Multicast Control Channel).
  • MCCH Multicast Control Channel
  • the base station may record the time at which the counting command is sent or the start time of the MBMS counting process (such as when the counting command indicates the start time of the MBMS counting process) as a time starting point, and then until the end of the counting process, the base station needs to consider with the MBMS. Relevant processing of status reports.
  • the UE After receiving the counting command sent by the base station, the UE parses the command and obtains information of the MBMS service that needs to perform feedback counting. The UE determines whether the uplink feedback needs to be performed according to the information of the MBMS service, that is, whether the MBMS status report needs to be transmitted to the base station. The basis for the feedback is that the MBMS service to be fed back is the MBMS service that the UE is receiving or is interested in receiving. MBMS business. This example assumes that there is feedback that the UE needs to participate in the counting process.
  • the specific flow of the MBMS status report transmission for the UE is as shown in FIG. 2.
  • FIG. 2 is a flowchart of Embodiment 1 of the present invention for transmitting an MBMS status report, which is sent by the present invention.
  • the MBMS status report specifically includes the following steps:
  • Step 201 The UE sends the SR information to the base station in the SR resource of the Physical Uplink Control Channel (PUCCH), indicating that the UE needs to transmit the uplink data to the base station.
  • PUCCH Physical Uplink Control Channel
  • Step 202 After receiving the SR information of the UE, the base station allocates an uplink resource to the UE. Because the base station is in the process of counting, the base station needs to consider that the UE may use the allocated uplink resource to transmit the MBMS status report when performing the uplink resource allocation in this step. Therefore, when the uplink resource size is allocated, the MBMS status is allocated as much as possible. Report the uplink resources transmitted. Combined with existing protocols, considering that the MBMS status report may exceed 8bits, therefore, this issue In the description, the base station preferably allocates a longer BSR resource for the UE, that is, allocates 24 bits of the BSR resource to the UE, so that the UE can use the BSR resource to transmit the MBMS status report. Of course, if a longer BSR resource cannot carry the MBMS status report of the UE, the BSR resource may be extended to enable the base station to provide a larger capacity BSR resource.
  • Step 203 The UE sends an MBMS status report to the base station in the uplink resource allocated in step 202.
  • the base station After receiving the uplink data sent by the UE in step 203, the base station needs to perform the following detection. Since the base station is still in the MBMS counting process, the base station needs to detect whether the uplink data sent by the UE using the BSR resource is the MBMS status report or the BSR itself. If it is an MBMS status report, the base station receives the MBMS status report sent by the UE, and the base station can send the relevant information to the UE to confirm the correct reception, such as ACK information. The base station can also directly terminate the current SR request process of the UE. So far, the MBMS status report transmission flow of the present invention ends.
  • the base station If the base station detects that the uplink data is a BSR, the base station allocates uplink resources to the UE according to the BSR data and the measurement report of the UE. The UE generates uplink data that the UE needs to transmit in the uplink resource allocated by the base station.
  • the MBMS status report is directly sent by using the uplink resource (BSR resource) in step 202, mainly because the data volume of the MBMS status report is relatively small and remains substantially fixed, and can be complete in the uplink resource allocated in step 202.
  • the bearer is used, so that the uplink resource in step 202 can be directly used; and whether the base station performs the detection of whether the uplink data transmitted by the UE in step 203 is an MBMS status report has a trigger condition, that is, the base station must be in a certain MBMS counting process.
  • the detection of the MBMS status report is performed, otherwise the base station does not perform the detection of the MBMS status report, which correspondingly reduces the unnecessary burden on the base station.
  • the process of uploading the MBMS status report in this embodiment is simple, and the interaction process between the UE and the base station is reduced.
  • This embodiment performs some adjustments on the basis of the first embodiment, mainly for those in the How does a UE without SR resources in the PUCCH send an MBMS status report.
  • the network side initiates an MBMS counting process for some MBMS services in a certain MBSFN area.
  • the MCE configures a counting command of the related counting process, and sends a counting command to the relevant base station, and the base station sends the relevant counting command to the UE through the MCCH.
  • the base station can record the start time of the MBMS counting process at the time of transmitting the counting command as a time starting point, and then until the end of the counting process, the base station needs to consider the related processing with the MBMS status report.
  • the UE After receiving the counting command sent by the base station, the UE parses the command and obtains information of the MBMS service that needs to perform feedback counting. The UE determines whether the uplink feedback needs to be performed according to the information of the MBMS service, that is, whether the MBMS status report needs to be transmitted to the base station. The basis for the feedback is that the MBMS service to be fed back is that the UE is receiving the MBMS service or is interested in receiving. The MBMS service. This example assumes that there is a feedback that the UE needs to participate in the counting process.
  • the specific process for sending the MBMS status report for the UE is as shown in FIG. 3.
  • FIG. 3 is a flowchart of Embodiment 2 of the present invention for transmitting an MBMS status report, which is sent by the present invention.
  • the MBMS Status 4 report specifically includes the following steps:
  • Step 301 The UE sends a random access Preamble of the random access in the Physical Random Access Channel (PRACH), indicating that the UE needs to perform uplink random access.
  • PRACH Physical Random Access Channel
  • Step 302 After receiving the preamble code of the UE, the base station allocates an uplink resource to the UE corresponding to the Preamble code.
  • the base station is in the counting process. Therefore, when performing the uplink resource allocation in this step, the base station needs to consider that the UE may use the allocated uplink resource to transmit the MBMS status report. Therefore, when the uplink resource size is allocated, the MBMS status is allocated as much as possible. Report the uplink resources transmitted.
  • Step 303 The UE sends an MBMS status report to the base station in the uplink resource allocated in step 302.
  • the base station After receiving the data sent by the UE in step 303, the base station needs to perform the following detection. Due to The base station is in the counting process, and the base station needs to detect whether the data is an MBMS status report or a BSR. If yes, the base station receives the MBMS status report sent by the UE, and the base station can send the relevant information to the UE to confirm the correct reception, such as ACK information. The base station may also directly terminate the current uplink random access request process of the UE.
  • the UE directly sends the MBMS status report by using the uplink resource in the step 302, which is mainly because the data volume of the MBMS status report is relatively small, and is basically kept fixed, and can be completely carried in the uplink resource allocated in step 302. Therefore, the uplink resource in step 302 can be directly used, and whether the base station performs the detection of whether the data transmitted by the UE in step 303 is an MBMS status report has a trigger condition, that is, the base station must be in a certain MBMS counting process. The detection of the MBMS status report is performed, otherwise the base station does not perform the detection of the MBMS status report, which correspondingly reduces the unnecessary burden on the base station.
  • the flow of sending the MBMS status report in this embodiment is simple, and the interaction process between the UE and the base station is reduced.
  • This embodiment is also applicable to the UE in the idle state (RRC_IDLE) to send an MBMS status report. That is, when the UE in the RRC_IDLE needs to send the MBMS status report, the foregoing process (step 301 to step 303) can be implemented.
  • the transmitting system of the multimedia broadcast multicast service status report of the present invention includes a receiving unit 40, an allocating unit 41, and a sending unit.
  • the unit 42 is configured in the base station, and the sending unit 42 is disposed in the UE, where
  • the receiving unit 40 is configured to: when the base station is in the MBMS counting process, receive the uplink data SR sent by the UE;
  • An allocating unit 41 configured to allocate resources of the BSR to the UE
  • the sending unit 42 is configured to send an MBMS status report by using the BSR resource allocated by the allocating unit when the uplink data to be sent by the UE is an MBMS status.
  • the foregoing allocation unit 41 further, that the BSR resource allocated to the UE is a long BSR The resource when the format is transferred.
  • the MBMS status report includes at least one of the following information: information identifying an MBMS service that the UE is receiving or interested in receiving, information identifying an MBSFN area corresponding to the MBMS status 4, and indicating a counting process corresponding to the MBMS status 4 information.
  • FIG. 5 is a schematic diagram of another composition structure of a system for transmitting a multimedia broadcast multicast service status report according to the present invention.
  • the transmission of the multimedia broadcast multicast service status report of the present invention includes a receiving unit 50, an allocating unit 51, and a sending unit 52; the receiving unit 50 and the allocating unit 51 are disposed in the base station, and the sending unit 52 is disposed in the UE, where
  • the receiving unit 50 is configured to: when the base station is in the MBMS counting process, receive a Random Access Preamble sent by the UE;
  • An allocating unit 51 configured to allocate an uplink resource to the UE
  • the sending unit 52 is configured to send an MBMS status report by using an uplink resource allocated by the allocating unit when the uplink data to be sent by the UE is an MBMS status.
  • the foregoing MBMS status report includes at least one of the following information: information identifying an MBMS service that the UE is receiving or interested in receiving, information identifying an MBSFN area corresponding to the MBMS status 4, and information indicating a counting process corresponding to the MBMS status 4 report. .
  • the transmitting system of the multimedia broadcast multicast service status report shown in FIG. 4 and FIG. 5 is designed to implement the foregoing method for transmitting a multimedia broadcast multicast service status report, and each processing unit is configured.
  • the implementation function can be understood by referring to the related description of the foregoing third embodiment.
  • the functions of the various processing units in the figures may be implemented by a program running on a processor or by a specific logic circuit.

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

Abstract

L'invention concerne un procédé de transmission de rapports d'état de service de diffusion/multidiffusion multimédia (MBMS). Selon ce procédé : lorsqu'une station de base est dans le processus de comptage MBMS, la station de base attribue des ressources de rapport d'état de tampon (BSR) à un équipement utilisateur lors de la réception d'un rapport d'état de données de liaison montante transmise par l'équipement utilisateur ; et lorsque les données de liaison montante à transmettre par l'équipement utilisateur sont un rapport d'état MBMS, l'équipement utilisateur transmet le rapport d'état MBMS au moyen des ressources BSR attribuées par la station de base. En variante, lorsque la station de base est dans le processus de comptage MBMS, elle attribue des ressources de liaison montante à un équipement utilisateur lors de la réception d'un préambule d'accès aléatoire de liaison montante transmis par l'équipement utilisateur ; lorsque les données de liaison montante à transmettre par l'équipement utilisateur sont un rapport d'état MBMS, l'équipement utilisateur transmet le rapport d'état MBMS au moyen des ressources de liaison montante attribuées à l'équipement utilisateur. L'invention concerne également un système de transmission de rapports d'état de service de diffusion/multidiffusion multimédia mettant en oeuvre ce procédé. La présente invention met en oeuvre un mécanisme de demande de ressources de liaison montante courantes permettant d'utiliser intelligemment une partie du traitement du flux de travaux courant, ce qui permet la transmission de rapports d'état MBMS.
PCT/CN2011/079771 2010-09-29 2011-09-16 Système et procédé de transmission de rapports d'état de service de diffusion/multidiffusion multimédia WO2012041166A1 (fr)

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