CN102264038B - Method and system for distribution and feedback of multimedia broadcast multicast service (MBMS) uplink resources - Google Patents
Method and system for distribution and feedback of multimedia broadcast multicast service (MBMS) uplink resources Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a method and a system for distribution and feedback of multimedia broadcast and multicast service (MBMS) uplink resources. The network side distributes an uplink subframe for uplink feedback and a physical resource configured in the uplink subframe for the MBMS and informs user equipment in an appointing, or implying or signaling indication way; further, the network side transmits a feedback counting message to the user equipment and carries the MBMS information for informing the user equipment of feedback counting; and the user equipment transmits the feedback information of the MBMS required by the network side in the uplink subframe and the physical resource configured in the uplink subframe. A user grouping feedback way can be adopted for feedback, thereby facilitating the counting of a user. The signaling overhead for the uplink physical resource distribution is low so that the information of the counted MBMS being received can be obtained by the network side.
Description
Technical Field
The present invention relates to the technical field of Multimedia Broadcast Multicast Service (MBMS), and in particular, to an uplink resource allocation and feedback method for an MBMS in which a User Equipment (UE) having an MBMS capability performs uplink feedback in an MBMS system.
Background
With the rapid development of the internet and the popularization of large-screen multifunctional mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services, such as: video conference, television broadcasting, video on demand, video advertisement, online education, interactive games and the like, not only meet the continuously rising business requirements of mobile users, but also bring new business growth points for mobile operators. These mobile data multimedia services require that multiple users can receive the same data at the same time, and compared with general data services, the mobile data multimedia services have the characteristics of large data volume, long duration, time delay sensitivity and the like.
In order to effectively utilize mobile network resources, the third generation partnership Project (3rd 3GPP) proposes an MBMS (Multimedia Broadcast Multicast Service), which is a technology for transmitting data from one data source to a plurality of targets, implements sharing of network (including core network and access network) resources, and improves utilization of network resources (especially air interface resources). The MBMS service defined by 3GPP can not only implement pure text low-rate message multicast and broadcast, but also implement broadcast and multicast of high-speed multimedia service, and provide a variety of rich video, audio, and multimedia services, which undoubtedly follows the development trend of future mobile data, and provides better service prospects for the development of 3G (3rd Generation, third Generation digital communication).
The MBMS service is transmitted in a Multimedia broadcast multicast service Single Frequency Network (MBSFN) mode, where the MBSFN mode is understood as a multi-cell joint transmission mode, that is, cells in a certain geographical location all transmit the same MBMS service data on the same time and Frequency resources, and the certain geographical location is referred to as an "MBSFN area".
In order to know the receiving condition of a certain MBMS service in an MBSFN area, that is, how many terminal UEs are receiving the MBMS service, or how many terminal UEs are interested in the MBMS service to be transmitted. When the network side knows that a certain MBMS service being transmitted is not interested by the user and therefore is not being received by the UE, the network side may adopt to close the transmission of the MBMS service, which may help the network side to save time-frequency resources and save electric energy.
In the LTE system, there are two states for MBMS service reception: one is an IDLE state (RRC _ IDLE), in which the terminal UE keeps synchronization between the downlink and the network side, and the uplink does not necessarily keep synchronization with the network side; the other is a CONNECTED state (RRC _ CONNECTED), in which the terminal UE keeps the downlink and uplink synchronized with the network side at the same time.
If the uplink and the network side are not synchronized, if the UE wants to send data to the network side in uplink, generally, the UE must first complete the uplink random access process from the idle state and then transition to the connected state to send the uplink data to the network side, and the network side can correctly receive and decode the uplink data to obtain the uplink data sent by the UE. Of course, there are some special cases to achieve the special purpose, the UE directly sends uplink data to the network side in the idle state, and the network side can know the purpose of sending uplink data by the UE through special processing.
However, in any uplink transmission scheme, on which uplink resources the UE transmits uplink data to the network? Each UE cannot blindly transmit data on any uplink resource, and a specific resource should be allocated by the network side, so that the network side can only know which terminal UEs transmit the data and what to do when the data arrives at the network side. For the uplink feedback of the MBMS service, it is also necessary to assign an uplink feedback resource to the terminal UE with the MBMS capability, so that the terminal can transmit the uplink data of the MBMS service. How to design resource allocation and signaling of indication and how to perform feedback by the UE for the MBMS service becomes a problem to be solved.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for uplink resource allocation and feedback of MBMS, so as to flexibly allocate physical resources for uplink feedback of MBMS service and perform uplink feedback by using the allocated physical resources.
In order to solve the above problem, the present invention provides a method for uplink resource allocation and feedback of a multimedia broadcast multicast MBMS, comprising:
the network side distributes an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for the multimedia broadcast multicast MBMS service, and notifies the user equipment of the uplink subframe indication information and/or the physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode.
The method further comprises: a network side sends a feedback statistical message to user equipment, wherein the feedback statistical message carries MBMS service information for informing the user equipment of feedback counting; and the user equipment sends the feedback information of the MBMS required by the network side in the uplink subframe distributed by the network side and the physical resources configured in the uplink subframe.
The uplink subframe indication information includes: one or a combination of uplink subframe position information or uplink subframe starting position information, uplink subframe number information and uplink subframe interval information; wherein:
the uplink subframe position information is used for describing the number of the subframe intervals between the allocated uplink subframe and the downlink subframe for sending the statistical message, or describing the number of the subframe intervals between the allocated uplink subframe and the last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe starting position information is used for describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a downlink subframe for sending the statistical message, or describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe number information is used for describing the subframe number of the allocated uplink subframe;
and the uplink subframe interval is used for describing the information of the number of the subframe intervals or the subframe number difference between the allocated uplink subframes.
When the network side distributes uplink feedback resources for a plurality of MBMS services, one uplink subframe is distributed for the plurality of MBMS services, the same or different physical resources are distributed for the plurality of MBMS services in the uplink subframe, and the uplink subframe indication information comprises uplink subframe position information.
When the network side allocates uplink feedback resources for a plurality of MBMS services, a plurality of uplink subframes are allocated for the plurality of MBMS services, and the plurality of uplink subframes are continuous or discrete uplink subframes; in the plurality of continuous or discrete uplink subframes, allocating the same or different physical resources to a plurality of MBMS services in each uplink subframe, or in the plurality of continuous or discrete uplink subframes, each uplink subframe is used for uplink feedback of one MBMS service, and allocating one or more physical resources used for uplink feedback to the corresponding MBMS service in each uplink subframe;
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises uplink subframe initial position information and uplink subframe number information; and when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises the initial position of the uplink subframe, the number of the uplink subframes and the interval of the uplink subframes.
When the network side allocates an uplink subframe for each MBMS service, the network side informs the number of the uplink subframes allocated to the user equipment in a predetermined mode, and omits the transmission of the number of the uplink subframes in the uplink subframe indication information; or the network side informs the user equipment of the number of the uplink subframes distributed in an implicit way, the default number of the uplink subframes is equal to the number of the plurality of MBMS services, and the transmission of the number of the uplink subframes in the uplink subframe indication information is omitted.
When the network side distributes uplink feedback resources for a plurality of MBMS services, an uplink subframe for uplink feedback is distributed for each MBMS service, and the network side distributes physical resources for each MBMS service in the corresponding uplink subframe; the uplink subframe indication information comprises an uplink subframe starting position corresponding to each MBMS service.
When the network side allocates uplink feedback resources for a plurality of MBMS services, allocating a plurality of uplink subframes for uplink feedback for each MBMS service, wherein the plurality of uplink subframes are continuous or discrete uplink subframes, and the same or different physical resources are allocated for the MBMS services in each uplink subframe; after receiving the statistical feedback message, the user equipment calculates the uplink sub-frame corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the uplink sub-frame corresponding to the group and the physical resources in the sub-frame; wherein: when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes and the number of user equipment groups; when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes, an uplink subframe interval and the number of user equipment groups.
When the network side allocates uplink feedback resources for a plurality of MBMS services, only one uplink subframe for uplink feedback is allocated for the plurality of MBMS services, and different physical resources are allocated for the MBMS services in the uplink subframe; the uplink subframe indication information comprises an uplink subframe starting position and the grouping number of user equipment; and after receiving the statistical feedback message, the user equipment calculates the physical resources in the subframe corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the physical resources corresponding to the group.
When the network side adopts a signaling indication mode to inform the user equipment of the allocated uplink subframe indication information and the allocated physical resource information in the uplink subframe: adopting a statistical feedback message to carry the uplink subframe indication information and the physical resource information in the uplink subframe; or, the statistical feedback message is adopted to carry the uplink subframe indication information, and the RNTI mark after the statistical message is issued is used for issuing the physical resource information in the uplink subframe in the following downlink subframe; or, the statistical feedback message is adopted to carry the uplink subframe indication information, and the authorization information signaling is adopted to send the physical resource information in the uplink subframe.
The physical resource is composed of physical resource blocks as basic units; each physical resource is a resource unit for the uplink feedback of the MBMS; the physical resource is formed by one or more physical resource blocks or a fixed number of subcarriers.
The invention also provides a system for distributing and feeding back the multimedia broadcast multicast MBMS uplink resources, which comprises a network side device and a user device,
the network side equipment is used for allocating an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for the multimedia broadcast multicast MBMS service, and informing the user equipment of the uplink subframe indication information and/or the physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode.
Further, the network side device is configured to send a feedback statistics message to the user equipment, where the feedback statistics message carries MBMS service information for notifying the user equipment that feedback counting is required; the user equipment is used for acquiring the uplink subframe for uplink feedback and the physical resources configured in the uplink subframe which are allocated by the network side equipment for the user equipment, and sending the feedback information of the MBMS required by the network side in the uplink subframe and the physical resources configured in the uplink subframe which are allocated by the network side.
The uplink subframe indication information includes: one or a combination of uplink subframe position information or uplink subframe starting position information, uplink subframe number information and uplink subframe interval information; wherein:
the uplink subframe position information is used for describing the number of the subframe intervals between the allocated uplink subframe and the downlink subframe for sending the statistical message, or describing the number of the subframe intervals between the allocated uplink subframe and the last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe starting position information is used for describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a downlink subframe for sending the statistical message, or describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe number information is used for describing the subframe number of the allocated uplink subframe;
and the uplink subframe interval is used for describing the information of the number of the subframe intervals or the subframe number difference between the allocated uplink subframes.
When the network side equipment allocates uplink feedback resources for a plurality of MBMS services, allocating a plurality of uplink subframes for uplink feedback for each MBMS service, wherein the plurality of uplink subframes are continuous or discrete uplink subframes, and the same or different physical resources are allocated for the MBMS services in each uplink subframe; after receiving the statistical feedback message, the user equipment calculates the uplink sub-frame corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the uplink sub-frame corresponding to the group and the physical resources in the sub-frame; wherein:
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes and the number of user equipment groups;
when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes, an uplink subframe interval and the number of user equipment groups.
When the network side equipment allocates uplink feedback resources for a plurality of MBMS services, only one uplink subframe for uplink feedback is allocated for the plurality of MBMS services, and different physical resources are allocated for the MBMS services in the uplink subframe; the uplink subframe indication information comprises an uplink subframe starting position and the grouping number of user equipment; and after receiving the statistical feedback message, the user equipment calculates the physical resources in the subframe corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the physical resources corresponding to the group.
When the network side equipment informs the user equipment of the allocated uplink subframe indication information and the allocated physical resource information in the uplink subframe by adopting a signaling indication mode:
adopting a statistical feedback message to carry the uplink subframe indication information and the physical resource information in the uplink subframe; or, the statistical feedback message is adopted to carry the uplink subframe indication information, and the RNTI mark after the statistical message is issued is used for issuing the physical resource information in the uplink subframe in the following downlink subframe; or,
and adopting a statistical feedback message to carry the uplink subframe indication information, and adopting an authorization information signaling to send the physical resource information in the uplink subframe.
The physical resource is composed of physical resource blocks as basic units; each physical resource is a resource unit for the uplink feedback of the MBMS; the physical resource is formed by one or more physical resource blocks or a fixed number of subcarriers.
The network side equipment allocates a plurality of uplink subframes for a plurality of MBMS services when allocating uplink feedback resources for the plurality of MBMS services, wherein the plurality of uplink subframes are continuous or discrete uplink subframes; in the plurality of continuous or discrete uplink subframes, allocating the same or different physical resources to a plurality of MBMS services in each uplink subframe, or in the plurality of continuous or discrete uplink subframes, each uplink subframe is used for uplink feedback of one MBMS service, and allocating one or more physical resources used for uplink feedback to the corresponding MBMS service in each uplink subframe;
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises uplink subframe initial position information and uplink subframe number information; and when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises the initial position of the uplink subframe, the number of the uplink subframes and the interval of the uplink subframes.
When the network side equipment allocates an uplink subframe for each MBMS service, the network side equipment informs the number of the uplink subframes allocated to the user equipment in a predetermined mode, and omits the transmission of the number of the uplink subframes in the uplink subframe indication information; or the network side equipment informs the user equipment of the number of the uplink subframes distributed in an implicit mode, the number of the default uplink subframes is equal to the number of the plurality of MBMS services, and the transmission of the number of the uplink subframes in the uplink subframe indication information is omitted.
The network side device includes: the system comprises a multi-cell coordination entity MCE, a base station eNB, a relay station, a broadcast multicast service center and an MBMS gateway.
The invention can provide flexible MBMS service uplink physical resource allocation, and the signaling overhead is very small by prearrangement or implication. The invention also adopts a UE grouping feedback mode, combines with an uplink feedback resource distribution mode, and utilizes a user grouping feedback mode of physical resources in an uplink subframe or a subframe to realize that a network side approximately knows the UE order magnitude information of the MBMS being received and counted.
Drawings
Fig. 1 is a schematic diagram of allocating an uplink subframe using a parameter K;
FIG. 2 is a diagram of allocating consecutive uplink subframes;
FIG. 3 is a schematic diagram of allocating discrete uplink subframes;
FIG. 4 is a schematic diagram of uplink subframe allocation for UE packet feedback;
fig. 5 is a diagram illustrating allocation of a plurality of uplink subframes for one MBMS service.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
The MBMS uplink resource allocation method and system provided by the invention provide a specific uplink subframe and a physical resource allocation scheme in the subframe aiming at various allocation scenes of uplink feedback resources. The uplink feedback resource allocation scheme of the invention can be directly applied to the uplink feedback statistics of the MBMS service by combining the feedback statistical message. Specifically, the uplink feedback statistics mode of the MBMS service is as follows: the network side sends feedback statistical information aiming at one or more MBMS services, and after the UE receives the statistical information, the UE feeds corresponding information back to the network side in an uplink mode according to the content of the statistical information.
The function of the statistic message is that the network side is used to notify the UEs of which MBMS services need to perform feedback counting, so as to determine whether the MBMS services are being received by the UEs, how many UEs are being received by the UEs, or which UEs are being received by the UEs, and the main purpose is to determine the UE receiving status of the MBMS services.
The network side comprises: MCE (Multi-cell/Multi-cell Coordination Entity), eNB (base station), relay station (relay), BMSC (broadcast multicast service center), MBMS GW (MBMS gateway).
The system for distributing and feeding back the multimedia broadcast multicast MBMS uplink resources comprises network side equipment and user equipment, wherein:
and the network side equipment is used for allocating an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for the multimedia broadcast multicast MBMS service, and informing the user equipment of the uplink subframe indication information and/or the physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode.
The network side device is further configured to send a feedback statistical message to the user equipment, where the feedback statistical message carries MBMS service information for notifying the user equipment that feedback counting is required;
the user equipment is used for acquiring the uplink subframe for uplink feedback and the physical resources configured in the uplink subframe which are allocated by the network side equipment for the user equipment, and sending the feedback information of the MBMS required by the network side in the uplink subframe and the physical resources configured in the uplink subframe which are allocated by the network side.
In the invention, the specific signaling for the network side to perform uplink resource allocation for the MBMS service comprises: the uplink subframe information distributed by the network side, the physical resource distribution information in the uplink subframe and the like. Specifically, the uplink subframe information may further include one or a combination of the following information: the information of the position or the initial position of the uplink subframe, the interval information of the uplink subframe and the number information of the uplink subframe. Wherein:
the uplink subframe position information is used for describing the number of the subframe intervals between the allocated uplink subframe and the downlink subframe for sending the statistical message, or describing the number of the subframe intervals between the allocated uplink subframe and the last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe starting position information is used for describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a downlink subframe for sending the statistical message, or describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe number information is used for describing the subframe number of the allocated uplink subframe;
and the uplink subframe interval is used for describing the information of the number of the subframe intervals or the subframe number difference between the allocated uplink subframes.
The network side allocates uplink resources for MBMS uplink feedback to form specific signaling of uplink resource allocation, and notifies the allocated uplink subframe information and physical resource allocation information in the uplink subframe to the user equipment through the signaling. And the user equipment performs uplink feedback on the MBMS according to the uplink subframe distributed by the network side and the physical resource in the uplink subframe.
The Physical Resource in the uplink subframe in the present invention may be composed of a Physical Resource Block (PRB) or a subcarrier basic unit. I.e. one physical resource may contain one or more physical resource blocks or one physical resource consists of a fixed number of sub-carriers. In the invention, the physical resource is a basic unit for MBMS service feedback. The physical resource is a resource unit that can be used for MBMS uplink feedback.
The invention discloses a method for allocating and feeding back uplink resources of a Multimedia Broadcast Multicast Service (MBMS), which comprises the following steps:
the network side distributes an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for the multimedia broadcast multicast MBMS service, and notifies the user equipment of the uplink subframe indication information and/or the physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode.
The method further comprises:
a network side sends a feedback statistical message to user equipment, wherein the feedback statistical message carries MBMS service information for informing the user equipment of feedback counting; and the user equipment sends the feedback information of the MBMS required by the network side in the uplink subframe distributed by the network side and the physical resources configured in the uplink subframe.
The uplink resource allocation and feedback method can be well applied to the uplink feedback resource allocation of the counted MBMS service, and indicates which uplink physical resources are used for the uplink transmission of the feedback information of the counted MBMS service by the UE.
The technical solution for implementing MBMS uplink resource allocation and feedback according to the present invention is further described in detail with reference to the specific embodiments.
Embodiment 1 allocating only one uplink subframe to a plurality of MBMS services
It is assumed that the network side allocates uplink physical resources for a plurality of MBMS services only in one uplink subframe.
The network side sends the downlink sub-frame of the statistical message (if the data volume of the statistical message is large, a plurality of downlink sub-frames are used for sending the statistical message, then the last downlink sub-frame is marked as N), and the uplink feedback sub-frame of the MBMS service is indicated through the parameter K.
In this embodiment, if multiple MBMS services need to be counted simultaneously, the network side allocates the same uplink subframe to the multiple MBMS services for uplink feedback of each MBMS service, that is, multiple MBMS services all perform uplink feedback in the uplink subframe, different or the same physical resources can be provided for different MBMS services in the subframe, and the UE that needs to feedback performs feedback on the physical resources of the corresponding MBMS service. When a network side sends a statistical message for a certain MBMS service to a UE, and a downlink subframe for sending the statistical message is denoted as N, an uplink feedback subframe of the MBMS service is N + K, as shown in fig. 1, a value of K is an integer, and generally K is an integer greater than or equal to 4, specifically, the value of K is configured by the network side as needed, and the parameter K is sent to the UE after configuration. At this time, the network side directly indicates the positions of the uplink subframes allocated for the multiple MBMS services, that is, the uplink feedback subframe is the (N + K) th subframe. Further, if the network side does not need to consider the flexibility of the uplink feedback subframe, the uplink feedback subframe parameter K in this embodiment may be obtained by the network side and the UE in advance by agreeing the value of K, that is, the value of K is fixed by standardization, so that the value of K may be omitted from being sent to the UE, for example, the corresponding uplink feedback subframe parameter K between the network side and the terminal UE is directly specified in a communication standard protocol, and at this time, the network side does not need to notify the UE of K through signaling.
After an uplink feedback subframe is allocated to the MBMS service, which physical resources in the uplink subframe are used for the UE to perform feedback for the MBMS service, and physical resource allocation in the uplink feedback subframe is further required.
In this embodiment, the UE may be notified of an Uplink grant signaling (Uplink grant) for the Uplink subframe through a Physical Downlink Control Channel (PDCCH). The uplink authorization signaling is used for describing which physical resources in the uplink subframe are used for uplink feedback of the counted MBMS service, and the physical resource information used for the uplink feedback is used as uplink authorization information.
The uplink authorization information in the uplink authorization signaling may also be carried in the statistical message to be sent, or a pre-agreed manner may be adopted to determine which physical resources in the subframe are used for the feedback of the MBMS service. For example, multiple physical resources may be appointed in the uplink subframe as physical resources for the MBMS service to perform feedback, that is, once the uplink subframe for feedback is determined in the above manner, it is not necessary to signal to the UE that the physical resources in the subframe are for the MBMS uplink feedback, and the UE and the network side both use the default appointed physical resources as uplink feedback physical resources in the uplink subframe.
The physical resource distribution mode in the subframe can adopt a mode of distributing the same physical resource for a plurality of MBMS services, and the feedback of the UE aiming at different MBMS services can be distinguished through an uplink feedback sequence during uplink feedback; in this way, after the UE feeds back, the network side distinguishes the feedback of the UE for different MBMS services according to the position of the fed back physical resource.
If the uplink authorization information is not agreed in advance, the uplink authorization information can be sent by adopting a signaling mode, and the method comprises the following two steps:
first, uplink grant information (referred to as uplink grant information, which is actually information indicating which physical resources in an allocated uplink subframe are used for MBMS service feedback) is carried in a statistical message and sent to the UE. Here, it may be distinguished from the uplink grant information in the LTE protocol, and only the resource allocation information in the existing uplink grant information may be used as the uplink grant information in this embodiment, or the uplink grant information in the LTE protocol may be directly used, but only some information unrelated to the MBMS feedback may be used as invalid information.
Secondly, in a downlink subframe after a downlink subframe in which a Network side sends a statistical message, the UE detects uplink authorization information for MBMS service feedback in a PDCCH by using a Radio Network Temporary Identifier (RNTI) (a specific Identifier process is the same as that described in 5.3.3.2 of the 36.212 protocol). Therefore, the physical resources in the appointed uplink subframe are used for the MBMS service uplink feedback. In general, a UE receives and parses data in one subframe, which takes a time length of about 3 to 4 subframes. That is to say, the sending subframe of the statistical message is N, then the uplink authorization information for the MBMS service feedback by the RNTI appointed in advance is retrieved in the PDCCH of the downlink subframe greater than or equal to N +4, the subframe where the UE retrieves the uplink authorization information of the RNTI is denoted as M, and then the UE sends the feedback information of the MBMS service in the uplink subframe greater than or equal to M + 4.
In summary, the subframe information indicating uplink feedback and/or the physical resource information for feedback in the uplink subframe in the present invention may be predetermined, and then signaling overhead is omitted.
Embodiment 2 manner for allocating a plurality of continuous uplink subframes to a plurality of MBMS services
Assume that a network side allocates a plurality of consecutive uplink subframes for a plurality of MBMS services, and allocates physical resources within the consecutive uplink subframes.
The network side sends the downlink sub-frame of the statistical message (if the data volume of the statistical message is large, a plurality of downlink sub-frames are used for sending the statistical message, then the last downlink sub-frame is marked as N), and the initial sub-frame of the uplink feedback sub-frame of the MBMS service is indicated by the parameter K.
As shown in fig. 2, the parameter K in embodiment 2 describes a starting subframe position of an uplink subframe allocated for the MBMS service, that is, a plurality of consecutive subframes from the N + K-th subframe are subframes for uplink feedback. In this embodiment, if the plurality of consecutive uplink subframes are regarded as a whole uplink subframe, it can be regarded as a special case of embodiment 1.
The specific number N of the continuous multiple uplink subframesCMay be predetermined as a fixed value, e.g., fixed to 3 uplink subframes, such that the specific number N of consecutive subframes isCThe configuration is not needed, and the configuration is not needed to be sent to the UE in a signaling mode; otherwise, the specific number N of the continuous numbers is requiredCAs a parameter is also sent to the UE. If the parameter of the number of the continuous subframes is not transmitted, only one uplink subframe is implicitly allocated or a fixed number of continuous subframes are allocated by defaultAnd an uplink subframe.
For the manner of allocating multiple consecutive uplink subframes, it may be further agreed that the physical resources for uplink feedback allocated to the same MBMS service in each uplink subframe are the same, or the physical resources for uplink feedback allocated in each uplink subframe are the same. Thus, only one uplink authorization message needs to be configured and sent by the network side to describe the physical resource information fed back for the MBMS service in the uplink subframes. Of course, the physical resource information in the subframe may also be configured independently for each uplink subframe. For a specific way of how to allocate the uplink feedback physical resource through the uplink grant information in the subframe, reference may be made to the allocation way in embodiment 1, which is not described herein again.
In the plurality of continuous uplink subframes, each uplink subframe is used for the feedback of one MBMS service, and one or more physical resources used for uplink feedback are allocated to the corresponding MBMS service in each uplink subframe.
As a special example of this embodiment, one uplink subframe may also be allocated for each MBMS service that needs to be counted to be used by the UE to send uplink feedback information, and the method may be applied to a network side to allocate uplink subframes for multiple MBMS services at a time. If the network side needs to allocate uplink subframes for 3 MBMS services simultaneously for the UE to send uplink feedback information, and each MBMS is allocated with only one uplink subframe, then the above-mentioned multiple continuous allocation manner is adopted. When the continuous uplink sub-frames are distributed, the parameter K is adopted, and the number N of the continuous uplink sub-framesCThe allocation is realized by the parameter K being predetermined, for example, 4, and the number N of consecutive uplink subframes is predeterminedCOr implicitly, that is, equal to the number of MBMS services to be statistically fed back in the statistical message sent by the network side. This may save overhead. Of course, both or one of the parameters may be configured by signaling. In this specific example, each consecutive uplink subframe corresponds to an uplink feedback for one MBMS service.
Embodiment 3 manner for allocating a plurality of discrete uplink subframes to a plurality of MBMS services
Assume that a network side allocates a plurality of discrete uplink subframes for a plurality of MBMS services for uplink feedback of the MBMS services.
In this embodiment 3, the discrete manner of the discrete uplink subframes is described as a pattern, which may be predetermined. For example, in the discrete pattern shown in fig. 3, 3 discrete uplink subframes are allocated, and the interval between the 3 uplink subframes is 1 (in this embodiment, the number of subframe intervals between the allocated uplink subframes is used as the uplink subframe interval parameter). At this time, the parameter K describes the position of the first uplink subframe in the 3 discrete uplink subframes, or K describes the first uplink subframe of the pattern, and the remaining uplink subframes are sequentially derived according to the predetermined pattern (or the predetermined interval).
For example, when the starting position of the first uplink subframe is determined to be the N + K uplink subframes, the uplink subframe interval N may be accumulated againiTo obtain the position of the second uplink subframe, and so on. Wherein, if NiWhen the number of the sub-frame intervals between the allocated uplink sub-frames is the number, the number of the next allocated uplink sub-frame is determined by adding 1 to the obtained accumulated value; if N is presentiWhen the difference value between the numbers of the two allocated uplink subframes is obtained, the number of the next allocated uplink subframe can be obtained by directly accumulating the number of the uplink subframe allocated previously and the difference value of the numbers. When the assigned next subframe number is obtained, the location of the assigned next subframe is determined.
The resource allocation method needs parameters K (starting position of uplink sub-frame) and the number N of uplink sub-framesdUplink subframe spacing NiThree parameters, which may be predetermined to include at least one of the above-mentioned 3 parameters, are used to determine all uplink subframes for the MBMS service.
The allocation process for allocating physical resources in the subframe is the same as the process for allocating multiple consecutive uplink subframes, and the physical resources used for uplink feedback of the MBMS service in the uplink subframe may all be the same, or the physical resources in the subframe may be independently allocated for each uplink subframe.
In the plurality of continuous uplink subframes, each uplink subframe is used for the feedback of one MBMS service, and one or more physical resources used for uplink feedback are allocated to the corresponding MBMS service in each uplink subframe.
As a special example of this embodiment, one uplink subframe may also be allocated for each MBMS service that needs to be counted to be used by the UE to send uplink feedback information, and the method may be applied to a network side to allocate uplink subframes for multiple MBMS services at a time. For example, if the network side needs to allocate uplink subframes for 3 MBMS services at the same time for the UE to send uplink feedback information, and only one uplink subframe is allocated for each MBMS service, then the above-mentioned multiple discrete allocation manners are adopted.
When the uplink sub-frame is distributed discretely, the parameter K is adopted, and the uplink sub-frame interval N is adoptediNumber of uplink subframes NdAnd 3 parameters are used for realizing the distribution, and the parameter K can be agreed in advance, for example, 4 is agreed, and the number N of uplink subframes is NdOr implicitly, that is, equal to the number of MBMS services to be statistically fed back in the statistical message sent by the network side, the uplink subframe interval may also be agreed, for example, agreed to be 4, so that overhead may be omitted. Of course, all or part of the three parameters may also be configured by signaling. Then, according to the sequence of the 3 MBMS services appearing in the statistical message or the size sequence of the 3 MBMS service IDs, the 3 MBMS services are respectively corresponding to the first, second and third uplink subframes for respective feedback. The physical resource allocation in the uplink subframe may be performed in the physical resource allocation manner in embodiment 1. In this particular case, each discrete uplink subframe corresponds to an uplink feedback for one MBMS service.
Embodiment 4 manner for allocating one uplink subframe to each MBMS service
This embodiment 4 describes a case where different uplink feedback resources are allocated to multiple MBMS services requiring feedback statistics on a network side.
In this embodiment, a downlink subframe (if there are multiple downlink subframes used for sending the statistical message, the last downlink subframe is denoted as N) in which the network side sends the downlink statistical message is denoted as N, and the position of the uplink feedback subframe or the starting position of the uplink feedback subframe of each MBMS service is indicated by the parameter K.
If the network side sends a message in the statistics that 2 MBMS services need to be fed back and only one uplink subframe is allocated to each MBMS service, the network side configures a value of K for each service (the values of K for two services may be configured to be the same).
Each corresponding MBMS service has respective uplink subframe information for uplink feedback. The value ranges and meanings of K are given in example 1.
For example, the K values assigned to 2 services are 4 and 8, respectively, and each service is assigned only one uplink subframe. Physical resource allocation within a subframe is shown in example 1. When the values of K of the two services are the same, different physical resources are further allocated in the subframe.
Embodiment 5 a method for allocating multiple uplink subframes for an MBMS service, which employs a user grouping feedback
This embodiment 5 describes a method for allocating multiple different uplink feedback subframes or physical resources for one MBMS service and performing uplink feedback by UE grouping. The network side distributes a plurality of uplink subframes for an MBMS service which needs to be subjected to uplink feedback statistics, and only one uplink feedback resource is arranged in each subframe aiming at the MBMS service, or a plurality of different physical resources are used for uplink feedback in one uplink subframe.
It is assumed that 4 different uplink subframes are allocated to the MBMS service, and physical resources for uplink feedback in each subframe may be the same or different, and if the physical resources are the same, signaling overhead may be reduced, and if the physical resources are different, flexibility of system resource allocation may be improved. Here, the manner of allocating multiple uplink subframes in the above embodiment 3 may be adopted, but only there are 1 MBMS service at this time, that is, it is agreed that one contains 4 subframe patterns, where 4 uplink subframes may be continuous or discrete, and K is used to indicate the first uplink subframe of the pattern. As shown in fig. 4, K is 4, and the uplink subframe interval (in this embodiment, the number difference between the allocated subframes is used as the uplink subframe interval parameter) is 4, for a total of 4 uplink subframes.
After the UE receives the statistical message, the UE which needs to perform feedback calculates grouping according to an agreed rule, the number of the grouping is the same as that of the distributed different uplink physical resources, and the UE of each group performs uplink feedback on the corresponding uplink physical resource. In this embodiment, the uplink physical resources are divided into 4 groups, because there are 4 different uplink physical resources. And the UE of each group sends the uplink feedback information aiming at the MBMS on the physical resource of one uplink subframe corresponding to the group to which the UE belongs. Here, the physical resource for uplink feedback in the subframe may be agreed in advance or may use the manner of allocating the physical resource in the subframe in the above embodiment.
The grouping rules of the UE are many, and a simple way is provided here, the value corresponding to the UE ID is used to modulo the packet number Ng, that is, UE _ ID mod Ng is offset, where UE _ ID represents the decimal value corresponding to the UE ID, Ng represents the number of required packets, and offset represents the modulus value.
In this embodiment, Ng is 4, 4 types of UEs with modulus values of 0, 1, 2, and 3 can be obtained after the calculation, and the uplink feedback resources corresponding to the UEs are physical resources in the 1 st, 2 nd, 3 th, and 4 th uplink subframes, respectively. Here, after receiving the statistics message, if the UE is receiving the MBMS service, the UE is a UE that needs to perform feedback, and the UE must first calculate its own grouping information according to its UE ID, and then determine in which subframe of uplink physical resource to perform uplink feedback according to the grouping information. Thus, after grouping the UEs that need to be fed back for the feedback statistical information of the MBMS service, each group sends uplink feedback information, so that if the network side detects that there is UE feedback information on all 4 allocated uplink resources (it is possible to detect information energy on the uplink resources, and also receive data for decoding processing, etc.), the network side can know that there are at least 4 UEs receiving the MBMS service.
If it is detected that there is UE feedback only on 3 of the uplink resources, the network side may also know that there are at least 3 UEs receiving the MBMS service. Thus, as the number of packets increases, the network side can approximately know the order of magnitude of the UE receiving the MBMS service.
Embodiment 6 an MBMS service allocates an uplink sub-frame, and physical resources in the sub-frame are fed back in a user grouping manner
Assuming that the network side only allocates one uplink subframe for one MBMS service, if there are multiple different physical resources in the subframe for uplink feedback, the method in embodiment 5 may be referred to, that is, the different physical resources in one uplink subframe correspond to multiple uplink subframes. Specifically, the users may be grouped, and the user equipment in each group performs uplink feedback by using the physical resource corresponding to the group in the subframe.
In the above embodiments 1 to 6, the user grouping feedback methods in embodiments 5 and 6 can be applied to the uplink subframe and the physical resource allocation method in each embodiment.
Embodiments 5 and 6 provide a preferred scheme for UE grouping feedback, where a basic idea of grouping feedback is to group according to the number of physical resources capable of performing uplink feedback, and then each group of UEs uses one physical resource for uplink feedback to perform uplink feedback.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (19)
1. A method for uplink resource allocation and feedback of multimedia broadcast multicast MBMS comprises the following steps:
a network side allocates an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for a Multimedia Broadcast Multicast Service (MBMS), and notifies user equipment of uplink subframe indication information and/or physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode;
when the network side distributes uplink feedback resources for a plurality of MBMS services, a plurality of uplink subframes are distributed for the plurality of MBMS services, and the plurality of uplink subframes are continuous or discrete uplink subframes; in the multiple continuous or discrete uplink subframes, the same or different physical resources are allocated to multiple MBMS services in each uplink subframe, or in the multiple continuous or discrete uplink subframes, each uplink subframe is used for uplink feedback of one MBMS service, and one or more physical resources used for uplink feedback are allocated to the corresponding MBMS service in each uplink subframe; or,
when the network side allocates uplink feedback resources for a plurality of MBMS services, allocating a plurality of uplink subframes for uplink feedback for each MBMS service, wherein the plurality of uplink subframes are continuous or discrete uplink subframes, and the same or different physical resources are allocated for the MBMS services in each uplink subframe; or,
when the network side distributes uplink feedback resources for a plurality of MBMS services, only one uplink subframe for uplink feedback is distributed for the plurality of MBMS services, and different physical resources are distributed for the MBMS services in the uplink subframe.
2. The method of claim 1, wherein the method further comprises:
a network side sends a feedback statistical message to user equipment, wherein the feedback statistical message carries MBMS service information for informing the user equipment of feedback counting;
and the user equipment sends the feedback information of the MBMS required by the network side in the uplink subframe distributed by the network side and the physical resources configured in the uplink subframe.
3. The method of claim 1 or 2,
the uplink subframe indication information includes: one or a combination of uplink subframe position information or uplink subframe starting position information, uplink subframe number information and uplink subframe interval information; wherein:
the uplink subframe position information is used for describing the number of the subframe intervals between the allocated uplink subframe and the downlink subframe for sending the statistical message, or describing the number of the subframe intervals between the allocated uplink subframe and the last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe starting position information is used for describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a downlink subframe for sending the statistical message, or describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe number information is used for describing the subframe number of the allocated uplink subframe;
and the uplink subframe interval is used for describing the information of the number of the subframe intervals or the subframe number difference between the allocated uplink subframes.
4. The method of claim 1 or 2,
when the network side allocates uplink feedback resources for a plurality of MBMS services and allocates a plurality of uplink subframes for the plurality of MBMS services, and the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises uplink subframe initial position information and uplink subframe number information;
and when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises the initial position of the uplink subframe, the number of the uplink subframes and the interval of the uplink subframes.
5. The method of claim 4,
when the network side allocates an uplink subframe for each MBMS service,
the network side informs the number of the uplink subframes distributed by the user equipment in a predetermined mode, and omits the transmission of the number of the uplink subframes in the uplink subframe indication information; or,
the network side informs the user equipment of the number of the distributed uplink subframes in an implicit mode, the number of the default uplink subframes is equal to the number of the plurality of MBMS services, and the transmission of the number of the uplink subframes in the uplink subframe indication information is omitted.
6. The method of claim 2,
when the network side allocates uplink feedback resources for a plurality of MBMS services and allocates a plurality of uplink subframes for uplink feedback for each MBMS service;
after receiving the statistical feedback message, the user equipment calculates the uplink sub-frame corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the uplink sub-frame corresponding to the group and the physical resources in the sub-frame;
wherein:
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes and the number of user equipment groups;
when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes, an uplink subframe interval and the number of user equipment groups.
7. The method of claim 2,
when the network side allocates uplink feedback resources for a plurality of MBMS services and only allocates one uplink subframe for uplink feedback for the plurality of MBMS services;
the uplink subframe indication information comprises an uplink subframe starting position and the grouping number of user equipment;
and after receiving the statistical feedback message, the user equipment calculates the physical resources in the subframe corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the physical resources corresponding to the group.
8. The method of claim 1 or 2,
when the network side adopts a signaling indication mode to inform the user equipment of the allocated uplink subframe indication information and the allocated physical resource information in the uplink subframe:
adopting a statistical feedback message to carry the uplink subframe indication information and the physical resource information in the uplink subframe; or,
adopting a statistical feedback message to carry the uplink subframe indication information, and sending physical resource information in an uplink subframe in a subsequent downlink subframe by using an RNTI (radio network temporary identifier) after the statistical message is sent; or,
and adopting a statistical feedback message to carry the uplink subframe indication information, and adopting an authorization information signaling to send the physical resource information in the uplink subframe.
9. The method of claim 1 or 2,
the physical resource is composed of physical resource blocks as basic units; each physical resource is a resource unit for the uplink feedback of the MBMS;
the physical resource is formed by one or more physical resource blocks or a fixed number of subcarriers.
10. A system for distributing and feeding back the uplink resources of multimedia broadcast multicast MBMS comprises a network side device and a user device,
the network side equipment is used for distributing an uplink subframe for uplink feedback and physical resources configured in the uplink subframe for the multimedia broadcast multicast MBMS service, and informing the user equipment of the uplink subframe indication information and/or the physical resource information in the uplink subframe in an appointed, or implied, or signaling indication mode;
the network side equipment allocates a plurality of uplink subframes for a plurality of MBMS services when allocating uplink feedback resources for the plurality of MBMS services, wherein the plurality of uplink subframes are continuous or discrete uplink subframes; in the plurality of continuous or discrete uplink subframes, allocating the same or different physical resources to a plurality of MBMS services in each uplink subframe, or in the plurality of continuous or discrete uplink subframes, each uplink subframe is used for uplink feedback of one MBMS service, and allocating one or more physical resources used for uplink feedback to the corresponding MBMS service in each uplink subframe; or,
when uplink feedback resources are allocated to a plurality of MBMS services, the network side equipment allocates a plurality of uplink subframes for uplink feedback to each MBMS service, wherein the uplink subframes are continuous or discrete uplink subframes, and the same or different physical resources are allocated to the MBMS services in each uplink subframe; or,
when allocating uplink feedback resources for a plurality of MBMS services, the network side equipment allocates only one uplink subframe for uplink feedback for the plurality of MBMS services, and allocates different physical resources for the MBMS services in the uplink subframe.
11. The system of claim 10,
the network side device is further configured to send a feedback statistical message to the user equipment, where the feedback statistical message carries MBMS service information for notifying the user equipment that feedback counting is required;
the user equipment is used for acquiring the uplink subframe for uplink feedback and the physical resources configured in the uplink subframe which are allocated by the network side equipment for the user equipment, and sending the feedback information of the MBMS required by the network side in the uplink subframe and the physical resources configured in the uplink subframe which are allocated by the network side.
12. The system of claim 10 or 11,
the uplink subframe indication information includes: one or a combination of uplink subframe position information or uplink subframe starting position information, uplink subframe number information and uplink subframe interval information; wherein:
the uplink subframe position information is used for describing the number of the subframe intervals between the allocated uplink subframe and the downlink subframe for sending the statistical message, or describing the number of the subframe intervals between the allocated uplink subframe and the last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe starting position information is used for describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a downlink subframe for sending the statistical message, or describing the subframe interval number of a first uplink subframe in a plurality of allocated uplink subframes and a last downlink subframe in a plurality of downlink subframes for sending the statistical message;
the uplink subframe number information is used for describing the subframe number of the allocated uplink subframe;
and the uplink subframe interval is used for describing the information of the number of the subframe intervals or the subframe number difference between the allocated uplink subframes.
13. The system of claim 11,
when the network side equipment allocates uplink feedback resources for a plurality of MBMS services and allocates a plurality of uplink subframes for uplink feedback for each MBMS service;
after receiving the statistical feedback message, the user equipment calculates the uplink sub-frame corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the uplink sub-frame corresponding to the group and the physical resources in the sub-frame;
wherein:
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes and the number of user equipment groups;
when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises an uplink subframe starting position, the number of uplink subframes, an uplink subframe interval and the number of user equipment groups.
14. The system of claim 11,
when the network side equipment allocates uplink feedback resources for a plurality of MBMS services and only allocates one uplink subframe for uplink feedback for the plurality of MBMS services;
the uplink subframe indication information comprises an uplink subframe starting position and the grouping number of user equipment;
and after receiving the statistical feedback message, the user equipment calculates the physical resources in the subframe corresponding to the group to which the user equipment belongs according to an agreed grouping rule, and carries out MBMS service feedback to the network side on the physical resources corresponding to the group.
15. The system of claim 10 or 11,
when the network side equipment informs the user equipment of the allocated uplink subframe indication information and the allocated physical resource information in the uplink subframe by adopting a signaling indication mode:
adopting a statistical feedback message to carry the uplink subframe indication information and the physical resource information in the uplink subframe; or,
adopting a statistical feedback message to carry the uplink subframe indication information, and sending physical resource information in an uplink subframe in a subsequent downlink subframe by using an RNTI (radio network temporary identifier) after the statistical message is sent; or,
and adopting a statistical feedback message to carry the uplink subframe indication information, and adopting an authorization information signaling to send the physical resource information in the uplink subframe.
16. The system of claim 10 or 11,
the physical resource is composed of physical resource blocks as basic units; each physical resource is a resource unit for the uplink feedback of the MBMS;
the physical resource is formed by one or more physical resource blocks or a fixed number of subcarriers.
17. The system of claim 10 or 11,
when the network side equipment allocates uplink feedback resources for a plurality of MBMS services and allocates a plurality of uplink subframes for the plurality of MBMS services,
when the plurality of uplink subframes are continuous uplink subframes, the uplink subframe indication information comprises uplink subframe initial position information and uplink subframe number information;
and when the plurality of uplink subframes are discrete uplink subframes, the uplink subframe indication information comprises the initial position of the uplink subframe, the number of the uplink subframes and the interval of the uplink subframes.
18. The system of claim 17,
when the network side equipment allocates one uplink subframe for each MBMS service,
the network side equipment informs the user equipment of the number of the uplink subframes distributed in a predetermined mode, and omits the transmission of the number of the uplink subframes in the uplink subframe indication information; or,
the network side equipment informs the user equipment of the number of the distributed uplink subframes in an implicit mode, the number of the default uplink subframes is equal to the number of the plurality of MBMS services, and the transmission of the number of the uplink subframes in the uplink subframe indication information is omitted.
19. The system according to claim 10 or 11, wherein the network-side device comprises: the system comprises a multi-cell coordination entity MCE, a base station eNB, a relay station, a broadcast multicast service center and an MBMS gateway.
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| CN107852700B (en) * | 2015-02-11 | 2021-01-29 | 华为技术有限公司 | Group scheduling feedback method, base station and user equipment |
| BR112018015859A2 (en) * | 2016-02-05 | 2018-12-26 | Huawei Technologies Co., Ltd. | Feedback information transmitting method and apparatus |
| PH12022551748A1 (en) | 2020-01-16 | 2023-03-27 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Information feedback method and related device |
| EP4140155A4 (en) * | 2020-05-20 | 2023-05-03 | ZTE Corporation | METHODS AND DEVICES FOR ALLOCATING UPLINK RESOURCES FOR MBMS UPLINK FEEDBACK INFORMATION |
| EP4169300A4 (en) * | 2020-06-19 | 2024-07-31 | FG Innovation Company Limited | METHOD OF CARRYING OUT A FEEDBACK TRANSMISSION FOR MULTICAST OR BROADCAST SERVICE AND ASSOCIATED DEVICE |
| CN113825102B (en) * | 2020-06-19 | 2024-07-16 | 展讯通信（上海）有限公司 | Information feedback and resource allocation method and related products |
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| CN101473567A (en) * | 2006-06-21 | 2009-07-01 | Lg电子株式会社 | Method for supporting quality of multimedia broadcast multicast service (MBMS) in mobile communications system and terminal thereof |
| CN101541045A (en) * | 2008-03-20 | 2009-09-23 | 中兴通讯股份有限公司 | Multicast channel resource allocating method |
| CN101640843A (en) * | 2008-07-29 | 2010-02-03 | 中兴通讯股份有限公司 | Method for transmitting multimedia broadcast and multicast service resource configuration information |
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| CN102264038A (en) | 2011-11-30 |
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