CN101808281B - Method, system and device for transmitting MBMS (Multimedia Broadcast Multicast Service) control signaling scheduling information - Google Patents
Method, system and device for transmitting MBMS (Multimedia Broadcast Multicast Service) control signaling scheduling information Download PDFInfo
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Abstract
The invention discloses a method for transmitting MBMS (Multimedia Broadcast Multicast Service) control signaling scheduling information, comprising the steps of: indicating the position of the scheduling information bearing the MBMS related control signaling on a BCCH (Broadcast Control Channel); and sending the scheduling information of the MBMS related control signaling on a appointed resource in a subframe in the indicated position. The invention also discloses system and device for transmitting MBMS (Multimedia Broadcast Multicast Service) control signaling scheduling information. The invention can be adopted to indicate the scheduling information of the MBMS service control signaling on the BCCH and enable a terminal to conveniently acquire corresponding indication information as well as the scheduling information of the MBMS service control signaling and the control signaling of the MBMS service.
Description
Technical Field
The present invention relates to a transmission technology of information in multimedia broadcast multicast service, and in particular, to a method, a system, and a device for transmitting multimedia broadcast multicast service control signaling scheduling information.
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 appear, for example: video conference, television broadcasting, video on demand, advertisement, online education, interactive games, etc., which satisfy the ever-increasing service demands of mobile users on the one hand, and bring new service growth points for mobile operators on the other hand. 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 (3 GPP) proposes a Multimedia Broadcast Multicast Service (MBMS), which is a technology for transmitting data from a data source to a plurality of targets, implements network resource sharing including a core network and an access network, and improves the utilization of network resources, particularly the utilization of air interface resources. The MBMS defined by 3GPP can not only implement plain text low-rate message-type broadcast and multicast, but also implement broadcast and multicast of high-speed multimedia services, and provide a variety of rich video, audio, and multimedia services, which undoubtedly follows the development trend of future mobile data, and provides a better service prospect for the development of third-generation (3G) mobile communications.
In a Long Term Evolution (LTE) system, the transmission of MBMS service over an air interface is divided into two modes, namely a dedicated carrier and a hybrid carrier, and the two transmission modes mainly differ from each other in that: a special carrier mode, wherein the carrier only bears the MBMS service; in the mixed carrier mode, the carrier not only carries the MBMS service, but also carries a non-MBMS service, such as a unicast (unicast) service. Thus, in the process of carrying the MBMS service in the mixed carrier manner, there is a case where two types of services multiplex the same carrier, and in the process of carrying the MBMS service and the non-MBMS service using the mixed carrier, the two types of services use a Time-Division Multiplexing (TDM) manner. In this case, it is very important how to make the two types of services not interfere with each other and to exert the maximum efficiency in the transmission of the services. Currently, the Multicast Control Channel (MCCH) carries the scheduling information and Control signaling of the service.
In the existing LTE system, the MCCH is designed as follows: a Primary MCCH (P-MCCH, Primary MCCH) is used to carry Primary multicast control channel signaling; a Secondary MCCH (S-MCCH, Secondary MCCH) for carrying Secondary multicast control channel signaling. The P-MCCH is further divided into a single cell mode and a multi-cell mode, and the P-MCCH of the multi-cell mode further carries scheduling configuration information of the S-MCCH, and is mapped to a Multicast Channel (MCH). A Broadcast Control Channel (BCCH) carries scheduling configuration information of one or two P-MCCH, that is, a P-MCCH may be indicated on the BCCH, and the indicated P-MCCH may be in a single cell mode or a multi-cell mode; two P-MCCH may also be indicated on the BCCH, where the indicated P-MCCH is in a single cell mode, which is transmitted on the downlink shared channel (DL-SCH), and in a multi-cell mode, which is transmitted on the Multicast Channel (MCH).
However, what the indication information of the P-MCCH carried on the BCCH is itself; how to indicate scheduling configuration information of an MBMS service control signaling on a BCCH in a Multimedia Broadcast multicast service single frequency Network (MBSFN) area; and how to acquire the indication information of the scheduling configuration information of the MBMS service control signaling after the terminal reads the BCCH.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method, a system, and a device for transmitting MBMS control signaling scheduling information, which can indicate the scheduling information of MBMS service control signaling on BCCH, and enable a terminal to conveniently obtain corresponding indication information and MBMS service control signaling scheduling information.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a transmission method of MBMS control signaling scheduling information, which comprises the following steps:
indicating the position of the scheduling configuration information for bearing the MBMS related control signaling on the BCCH;
and transmitting the scheduling configuration information of the MBMS related control signaling on the appointed resources in the subframe in the indicated position.
The method further comprises the following steps: setting a wireless network temporary identifier of the MBMS service control signaling; correspondingly, the position of the radio network temporary identifier for bearing the MBMS service control signaling is further indicated on the BCCH; and transmitting the radio network temporary identifier on the agreed resources in the subframe within the indicated position.
Wherein the indication bearer position is: indicating the position of the wireless network temporary identifier bearing the MBMS service control signaling and the frame where the scheduling configuration information of the corresponding MBMS related control signaling is located; or indicating the sending time window of the wireless network temporary identifier bearing the MBMS service control signaling and the scheduling configuration information of the corresponding MBMS related control signaling.
Wherein, the position of the frame where the indication bearing is positioned is a multicast frame distributed in the MBMS service in a multi-cell mode; in single cell mode, loading frame of single cell mode MBMS service in MBMS service; the transmission time window is composed of multicast subframes in a multicast frame in a multi-cell mode; and the single cell mode MBMS service bearer consists of subframes for bearing the single cell mode MBMS service.
Wherein the subframe within the indicated position is a first multicast subframe within a multicast frame in a multi-cell mode; and transmitting the subframe of the MBMS service for the first subframe in the frame carrying the MBMS service in the single cell mode.
In the above scheme, the method further comprises: indicating the position of a subframe where scheduling configuration information of MBMS related control signaling is located in BCCH; the appointed resource is the first three orthogonal frequency division multiplexing OFDM symbols in the unicast subframe; or the first two OFDM symbols of the multicast subframe; or the third OFDM symbol of the multicast subframe; the MBMS related control signaling is multicast control channel signaling or main multicast control channel signaling.
In the above scheme, the method further comprises: transmitting the MBMS-related control signaling on the subframe within a specified location.
In the above scheme, the method further comprises:
reading and analyzing the radio network temporary identifier of the MBMS service control signaling on the BCCH and the indication information of the position information of the scheduling configuration information of the corresponding MBMS related control signaling;
detecting the radio network temporary identifier of the MBMS service control signaling on appointed resources, and acquiring the scheduling configuration information of the corresponding MBMS related control signaling;
and receiving the information of the MBMS related control signaling on corresponding resources according to the indication of the scheduling configuration information of the MBMS related control signaling.
The invention also provides a transmission system of the MBMS control signaling scheduling information, which comprises an indication information sending module and a scheduling information sending module which are positioned at a network side, and an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module which are positioned at a terminal side; wherein,
an indication information sending module, configured to send a position indicating scheduling configuration information carrying MBMS-related control signaling on the BCCH;
the scheduling information sending module is used for sending the scheduling configuration information of the MBMS related control signaling on the appointed resource;
the indication information acquisition module is used for acquiring the information of the indication position on the BCCH;
the scheduling information acquisition module is used for reading the scheduling configuration information of the MBMS related control signaling on the indicated appointed resource;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
The transmission system further comprises an identifier setting module used for setting a corresponding wireless network temporary identifier for the MBMS related control signaling;
the indication information sending module is further configured to send, on the BCCH, a position indicating a radio network temporary identifier carrying the MBMS-related control signaling;
the scheduling information sending module is further configured to send the radio network temporary identifier of the MBMS-related control signaling on an appointed resource;
the scheduling information obtaining module is further configured to detect a radio network temporary identifier of the MBMS-related control signaling on the indicated agreed resource.
The invention also provides a network device for transmitting the MBMS control signaling scheduling information, which comprises an indication information sending module and a scheduling information sending module; wherein,
an indication information sending module, configured to send a position indicating scheduling configuration information carrying MBMS-related control signaling on the BCCH;
and the scheduling information sending module is used for sending the scheduling configuration information of the MBMS related control signaling on the appointed resource.
The invention also provides a terminal for transmitting the MBMS control signaling scheduling information, which comprises an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module; wherein,
the indication information acquisition module is used for acquiring the information of the indication position on the BCCH;
the scheduling information acquisition module is used for reading the scheduling configuration information of the MBMS related control signaling on the indicated appointed resource;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
Here, the MBMS-associated control signaling is multicast control channel signaling or primary multicast control channel signaling.
The invention provides a transmission method, a system and equipment of MBMS control signaling scheduling information, which indicate a wireless network temporary identifier of MBMS service control signaling and a position of scheduling configuration information of MBMS related control signaling corresponding to the wireless network temporary identifier on BCCH in an MBSFN area, and the system sends the scheduling configuration information of the MBMS related control signaling and the wireless network temporary identifier of the MBMS related control signaling corresponding to the scheduling configuration information on the indicated position, correspondingly, a terminal determines the position of the MBMS related control signaling scheduling configuration information according to the indication and receives the MBMS related control signaling scheduling configuration information, and then receives and analyzes the MBMS related control signaling. In the invention, only the wireless frame number for sending the scheduling configuration information is indicated on the BCCH, so that the cost is low; moreover, through reasonable configuration, for example, scheduling information is sent in the first subframe in the indication frame, so that the blind detection range of the terminal is greatly reduced, and meanwhile, the flexibility of indication is not lost; the realization is simple, convenient and flexible.
Drawings
Fig. 1 is a schematic flow chart illustrating an implementation of a method for indicating MBMS control signaling scheduling information according to the present invention;
fig. 2 is a schematic diagram illustrating an implementation flow of the method for acquiring MBMS control signaling scheduling information according to the present invention;
fig. 3 is a schematic view of resource allocation of an MBMS service in a multi-cell mode.
Detailed Description
The basic idea of the invention is: indicating the position of the scheduling configuration information of the MBMS related control signaling on the BCCH, and sending the scheduling configuration information of the MBMS related control signaling on the indicated position; correspondingly, the terminal determines the position of the MBMS related control signaling scheduling configuration information according to the indication on the BCCH, receives the scheduling configuration information of the MBMS related control signaling, and further receives and analyzes the MBMS related control signaling. The invention has lower expense on the BCCH, can greatly reduce the range of blind detection of the terminal and does not lose the flexibility of indication.
Furthermore, the invention can set the radio network temporary mark of the MBMS service control signaling, correspondingly, further indicate the position of the radio network temporary mark of the MBMS service control signaling on BCCH, and send the radio network temporary mark of the MBMS service control signaling on the indicated position.
Here, the MBMS-related control signaling is multicast control channel signaling or primary multicast control channel signaling; the multicast control channel signaling refers to signaling carried on the MCCH, hereinafter denoted as MCCH; the primary multicast control channel signaling refers to signaling carried on a P-MCCH, hereinafter referred to as P-MCCH.
Specifically, the system may set a specific Radio Network Temporary Identifier (RNTI) for the MBMS related control signaling, and the RNTI is recorded as MCCH-RNTI. The general wireless network temporary identifier is well agreed in advance, for example, is directly specified by a protocol, so that the terminal does not need to be informed; of course, the temporary identifier may be set again during use, and in this case, the network side needs to notify the temporary identifier of the wireless network set by the terminal. The set MCCH-RNTI is used for identifying all control signaling related to the MBMS, such as MCCH and P-MCCH, and the MCCH-RNTI is known by the terminal. Wherein, the system refers to a network side of a mobile communication system.
The transmission method of the MBMS control signaling scheduling information provided by the invention comprises two parts: a method for indicating MBMS control signaling scheduling information and a method for acquiring MBMS control signaling scheduling information. In the following, the MBMS related control signaling is a P-MCCH for example, where the P-MCCH may be a P-MCCH in a multi-cell mode or a P-MCCH in a single-cell mode.
Fig. 1 is a schematic diagram illustrating an implementation flow of a method for indicating MBMS control signaling scheduling information according to the present invention, and as shown in fig. 1, the method for indicating MBMS control signaling scheduling information according to the present invention includes:
step 11: indicating the position for bearing the scheduling configuration information of the MCCH-RNTI and the corresponding P-MCCH on the BCCH;
here, the MCCH-RNTI is set for the P-MCCH in advance by a system; the indicated position for bearing the scheduling configuration information of the MCCH-RNTI and the P-MCCH corresponding to the MCCH-RNTI can be the position of a frame where the scheduling configuration information of the MCCH-RNTI and the P-MCCH corresponding to the MCCH-RNTI are located, or can be a sending time window where the scheduling configuration information of the MCCH-RNTI and the P-MCCH corresponding to the MCCH are located.
In this step, the system places indication information on the BCCH for transmission, where the indication information is used to indicate the location of the frame carrying the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding thereto. Wherein, the system refers to a network side of a mobile communication system.
In this step, the sending time window means: and sending the MCCH-RNTI and scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI in a period of time. For example: and the system sends the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH once on a subframe within 6ms of the beginning of the indicated frame (including the indicated frame).
For the multi-cell mode, the transmission time window consists of subframes of a multicast frame, i.e.: the timing only calculates the time that the multicast sub-frame has elapsed. Such as: assuming that the transmission time window in the multi-cell mode is 6ms, since each subframe is 1ms in length, the transmission time window includes six multicast subframes, and in particular in the resource allocation structure shown in fig. 3, it is assumed that the radio frame indicated on the BCCH is #0, that is: the transmission time window starts from multicast frame #0, and the constituent subframes of the transmission time window are three multicast subframes in multicast frame #0 and three multicast subframes in multicast frame # 4. Furthermore, the length of the transmission time window can be specified in advance during implementation, so that the terminal does not need to be informed of the length of the transmission time window, and only the start frame of the transmission time window needs to be informed.
For the single-cell mode, the sending time window is composed of subframes for bearing the MBMS service of the single-cell mode.
Step 12: and the system sends scheduling configuration information containing the MCCH-RNTI and the corresponding P-MCCH on appointed resources in a subframe in the indicated position, and sends the P-MCCH information on the subframe.
Wherein, the frame refers to a multicast frame distributed by a system in the MBMS service in a multi-cell mode; in the single cell mode, the frame is used for bearing the MBMS service in the single cell mode.
In the invention, for the MBMS service in a multi-cell mode, the system preferentially places the MCCH-RNTI of the P-MCCH and the scheduling configuration information of the P-MCCH on the first multicast subframe in a multicast frame indicated by the BCCH for transmission so as to reduce the blind detection times when the terminal receives the MCCH-RNTI.
For the MBMS service in a single-cell mode, the system preferentially places the MCCH-RNTI of the P-MCCH and scheduling configuration information of the P-MCCH on a first subframe for transmitting the MBMS service in a frame which is indicated by the BCCH and bears the MBMS service, so that the number of blind tests when the terminal receives the MCCH-RNTI is reduced.
In the invention, the BCCH can directly indicate the position of the subframe for bearing the MCCH-RNTI and the corresponding P-MCCH scheduling configuration information, namely, the BCCH indicates the position of the frame where the MCCH-RNTI and the corresponding P-MCCH scheduling configuration information are located, and further indicates the position of the subframe in the frame; or directly indicating the position information of the subframe where the MCCH-RNTI and the corresponding P-MCCH scheduling configuration information are located on the BCCH. Correspondingly, when the terminal receives the information, the terminal only needs to detect the MCCH-RNTI in the subframe indicated by the BCCH to acquire the scheduling configuration information of the corresponding P-MCCH, and then receives the P-MCCH information according to the scheduling configuration information indication of the P-MCCH.
In the present invention, the agreed resource in the subframe may be the first three Orthogonal Frequency Division Multiplexing (OFDM) symbols in the unicast subframe, or referred to as a Physical Downlink Control CHannel (PDCCH); it may be the first two OFDM symbols of the multicast subframe or the third OFDM symbol of the multicast subframe.
Fig. 2 is a schematic diagram of an implementation flow of the method for acquiring MBMS control signaling scheduling information according to the present invention, and as shown in fig. 2, the method for acquiring MBMS control signaling scheduling information according to the present invention includes:
step 21: a terminal reads and analyzes indication information of frame position information of MCCH-RNTI and corresponding P-MCCH scheduling configuration information on BCCH;
step 22-23: after the analysis, the terminal detects the appointed resources in the subframe in the frame in the step 21 until the MCCH-RNTI is obtained; acquiring scheduling configuration information of a P-MCCH corresponding to the MCCH-RNTI;
if the frame indicated in the step 21 is the initial position of the sending time window, the terminal detects the frame on the appointed resource of the subframe forming the sending time window according to the length of the sending time window appointed in advance until the MCCH-RNTI is obtained, and obtains the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI;
step 24: and receiving and analyzing the P-MCCH information on corresponding resources according to the indication of the P-MCCH scheduling configuration information.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and specific examples.
Fig. 3 is a schematic diagram of resource allocation of an MBMS service in a multi-cell mode, in fig. 3, a horizontal direction is a time axis, a vertical direction is a frequency axis, 32 radio frames constitute a modification period, each radio frame includes 10 subframes, and each subframe is 1ms in length. The diagonal filling part is multicast resources allocated to the MBSFN area by the system and is used for transmitting MBMS service data. It can be seen that a modification period allocates eight MBMS radio frames in total, with three multicast subframes in each MBMS radio frame.
The first embodiment is as follows:
this embodiment describes a method for transmitting scheduling configuration information of a P-MCCH in MBMS control signaling in a multi-cell mode. Wherein,
the method for indicating the scheduling configuration information of the P-MCCH in the MBMS control signaling by the network side comprises the following steps:
step a 11: the system sets MCCH-RNTI corresponding to the P-MCCH, and the MCCH-RNTI is recognized by the terminal;
step a 12: sending the number of a frame used by a system for bearing the scheduling configuration information of the MCCH-RNTI and the corresponding P-MCCH on the BCCH;
this number may be a relative number in a modification period, for example, in fig. 3, the number of the frame for carrying the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding thereto should be # 0;
step a 13: the system carries the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI in the first two OFDM symbols of the first multicast subframe of the multicast frame #0 for transmission, or carries the scheduling configuration information in the third OFDM symbol for transmission, or carries the scheduling configuration information on other appointed resources in the subframe for transmission.
Correspondingly, the method for the terminal side to acquire the scheduling configuration information of the P-MCCH in the MBMS control signaling comprises the following steps:
step b 11: the terminal receives BCCH, and acquires the number information of a frame indicating the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH on the BCCH, wherein the number #0 of the multicast frame is acquired in the embodiment;
step b 12: detecting the appointed resources of each multicast subframe in the multicast frame #0, such as the first two OFDM symbols of the first multicast subframe, or the third OFDM symbol, or other resources appointed with a sending end in the first multicast subframe until MCCH-RNTI is obtained;
step b 13: and the terminal reads the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI, and receives and analyzes the P-MCCH information according to the scheduling configuration information of the P-MCCH.
Example two:
this embodiment describes a method for transmitting scheduling configuration information of a P-MCCH in MBMS control signaling in a single cell mode. Wherein,
the method for indicating the scheduling configuration information of the P-MCCH in the MBMS control signaling by the network side comprises the following steps:
step a 21: the system sets MCCH-RNTI corresponding to the P-MCCH, and the MCCH-RNTI is recognized by the terminal;
since the resource usage of the MBMS service in the single cell mode is not specified in the current LTE system, it is assumed here that the resource allocation of the MBMS service in the multi-cell mode is also adopted in the single cell mode, and if the LTE system specifies another method later, the frame number is selected from the specified resources.
Step a 22: sending the number of a frame used by a system for bearing the scheduling configuration information of the MCCH-RNTI and the corresponding P-MCCH on the BCCH;
this number may be a relative number in a modification period, for example, in fig. 3, the number of the frame for carrying the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding thereto should be # 0;
step a 23: the system loads the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH thereof in the first three OFDM symbols of the first subframe of the wireless frame #0 for loading the MBMS service to be sent, or loads the scheduling configuration information on other appointed resources in the subframe to be sent.
Here, the subframe may be a unicast subframe; or a subframe carrying MBMS in single cell mode.
Correspondingly, the method for the terminal side to acquire the scheduling configuration information of the P-MCCH in the MBMS control signaling comprises the following steps:
step b 21: the terminal receives BCCH, and acquires the number information of a frame indicating the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH on the BCCH, wherein the embodiment acquires a radio frame number # 0;
step b 22: detecting the appointed resources of each subframe in the wireless frame #0, such as the first three OFDM symbols of the subframe carrying the MBMS service or other resources appointed with the sending end in the subframe carrying the MBMS service until the MCCH-RNTI is obtained;
step b 23: and the terminal reads the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI, and receives and analyzes the P-MCCH information according to the scheduling configuration information of the P-MCCH.
Example three:
this embodiment describes a transmission method of scheduling configuration information of a P-MCCH in MBMS control signaling in an MBMS service of a dedicated carrier. Wherein,
the method for indicating the scheduling configuration information of the P-MCCH in the MBMS control signaling by the network side comprises the following steps:
step a 31: the system sets MCCH-RNTI corresponding to the P-MCCH, and the MCCH-RNTI is recognized by the terminal;
since there is no clear regulation on how to allocate and use the physical resources of the dedicated carrier MBMS service, it is assumed here that the dedicated carrier MBMS service also adopts the resource allocation mode of the MBMS service in the multi-cell mode, and if there is another method specified later by the dedicated carrier, the frame number is selected in the resource specified in the MBMS service area.
Step a 32: sending the number of a frame used by a system for bearing the scheduling configuration information of the MCCH-RNTI and the corresponding P-MCCH on the BCCH;
this number may be a relative number in a modification period, for example, in fig. 3, the number of the frame for carrying the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding thereto should be # 0;
step a 33: the system loads the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH in the first three OFDM symbols of the first subframe of the wireless frame #0 for transmission or loads the scheduling configuration information on other appointed resources in the subframe for transmission.
Here, the subframe is an MBMS subframe.
Correspondingly, the method for the terminal side to acquire the scheduling configuration information of the P-MCCH in the MBMS control signaling comprises the following steps:
step b 31: the terminal receives BCCH, and acquires the number information of a frame indicating the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH on the BCCH, wherein the embodiment acquires a radio frame number # 0;
step b 32: detecting the appointed resources of each subframe in the wireless frame #0, such as the first three OFDM symbols of the first subframe or other appointed resources with the sending terminal in the first subframe until MCCH-RNTI is obtained;
step b 33: and the terminal reads the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI, and receives and analyzes the P-MCCH information according to the scheduling configuration information of the P-MCCH.
Example four:
in the transmission method of the P-MCCH scheduling configuration information in the MBMS control signaling described in this embodiment, a manner of indicating a transmission time window on the BCCH is adopted. Specifically, a frame indicating scheduling configuration information for carrying the MCCH-RNTI and the corresponding P-MCCH is indicated on the BCCH as the starting position of the transmission time window. In this embodiment, it is assumed that the length of the pre-agreed transmission time window is 6 ms.
The method for indicating the scheduling configuration information of the P-MCCH in the MBMS control signaling by the network side comprises the following steps:
step a 41: the system sets MCCH-RNTI corresponding to the P-MCCH, and the MCCH-RNTI is recognized by the terminal;
step a 42: sending the number of a frame used by a system for bearing the scheduling configuration information of the MCCH-RNTI and the corresponding P-MCCH on the BCCH;
this number may be a relative number in a modification period, for example, in fig. 3, the number of the frame for carrying the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding thereto should be # 0;
step a 43: the system sends the MCCH-RNTI and the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI in the first two OFDM symbols of a certain subframe forming a sending time window, or the scheduling configuration information is sent by being carried in the third OFDM symbol, or the scheduling configuration information is sent by being carried in other appointed resources in the subframe.
Correspondingly, the method for the terminal side to acquire the scheduling configuration information of the P-MCCH in the MBMS control signaling comprises the following steps:
step b 41: the terminal receives BCCH, and acquires the number information of a frame indicating the MCCH-RNTI and the scheduling configuration information of the corresponding P-MCCH on the BCCH, wherein the embodiment acquires a radio frame number # 0;
step b 42: starting from a wireless frame #0, detecting on appointed resources of a subframe forming a sending time window, such as the first two OFDM symbols of the subframe forming the sending time window, or the third OFDM symbol, or other resources appointed with a sending end in the subframe forming the sending time window until MCCH-RNTI is obtained;
step b 43: and the terminal reads the scheduling configuration information of the P-MCCH corresponding to the MCCH-RNTI, and receives and analyzes the P-MCCH information according to the scheduling configuration information of the P-MCCH.
In order to realize the method, the invention also provides a transmission system of the MBMS control signaling scheduling information, which comprises an indication information sending module and a scheduling information sending module which are positioned at a network side, and an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module which are positioned at a terminal side. Wherein,
an indication information sending module, configured to send a position indicating scheduling configuration information carrying MBMS-related control signaling on the BCCH;
the scheduling information sending module is used for sending the scheduling configuration information of the MBMS related control signaling on the appointed resource;
the indication information acquisition module is used for acquiring the information of the indication position on the BCCH;
the scheduling information acquisition module is used for reading the scheduling configuration information of the MBMS related control signaling on the indicated appointed resource;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
Generally, the radio network temporary identifier is predetermined, such as directly specified by a protocol; but may also be provided in use, in which case the transmission system may further comprise: the identification setting module is used for setting a corresponding wireless network temporary identification for the MBMS related control signaling; correspondingly, the indication information sending module is further configured to send a position indicating a radio network temporary identifier carrying an MBMS related control signaling on the BCCH; the scheduling information sending module is further used for sending the wireless network temporary identifier of the MBMS related control signaling on the appointed resource; the scheduling information obtaining module is further configured to detect a radio network temporary identifier of the MBMS-related control signaling on the indicated agreed resource.
Here, the radio network temporary identifier of the MBMS-related control signaling is MCCH-RNTI, and the MBMS-related control signaling is MCCH signaling or P-MCCH signaling.
In practical application, the network side device and the terminal side device can be used independently. Specifically, the invention provides a network device for transmitting MBMS control signaling scheduling information, which comprises an indication information sending module and a scheduling information sending module; wherein,
an indication information sending module, configured to send a position indicating scheduling configuration information carrying MBMS-related control signaling on the BCCH; and the scheduling information sending module is used for sending the scheduling configuration information of the MBMS related control signaling on the appointed resource.
The network equipment further comprises an identification setting module used for setting a corresponding wireless network temporary identification for the MBMS related control signaling; the indication information sending module is further used for sending the position of the radio network temporary identifier for bearing the MBMS related control signaling on the BCCH; the scheduling information sending module is further configured to send the radio network temporary identifier of the MBMS-related control signaling on the appointed resource.
The radio network temporary identifier of the MBMS related control signaling is MCCH-RNTI, and the MBMS related control signaling is MCCH signaling or P-MCCH signaling.
The invention can also provide a terminal for transmitting the MBMS control signaling scheduling information, which comprises an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module; wherein,
the indication information acquisition module is used for acquiring the information of the indication position on the BCCH;
the scheduling information acquisition module is used for reading the scheduling configuration information of the MBMS related control signaling on the indicated appointed resource;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
The scheduling information obtaining module may be further configured to detect a radio network temporary identifier of the MBMS-related control signaling on the indicated appointed resource.
The radio network temporary identifier of the MBMS related control signaling is MCCH-RNTI, and the MBMS related control signaling is MCCH signaling or P-MCCH signaling.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (14)
1. A transmission method for multimedia broadcast multicast service MBMS control signaling scheduling information is characterized in that the method comprises the following steps:
indicating the position of a subframe where scheduling configuration information for bearing MBMS related control signaling (MCCH) and a radio network temporary identifier are located on a broadcast control channel BCCH;
transmitting scheduling configuration information and a wireless network temporary identifier of the MBMS related control signaling on appointed resources in the position of the indicated subframe;
the position of the indication bearing subframe is as follows: indicating the position of a frame where a radio network temporary identifier bearing the MBMS service control signaling and scheduling configuration information of the corresponding MBMS related control signaling are located, and indicating the position of a subframe of the radio network temporary identifier bearing the MBMS service control signaling and the scheduling configuration information of the corresponding MBMS related control signaling in the frame;
or indicating the sending time window of the wireless network temporary identifier bearing the MBMS service control signaling and the scheduling configuration information of the corresponding MBMS related control signaling.
2. The transmission method according to claim 1, wherein before indicating the location of the subframe where the scheduling configuration information carrying the MBMS-associated control signaling (MCCH) and the radio network temporary identifier are located on the BCCH, the method further comprises: and setting a radio network temporary identifier of the MBMS service control signaling.
3. The transmission method according to claim 1, wherein the indication carries the location of the frame, and is a multicast frame allocated in the MBMS service in the multi-cell mode; in single cell mode, loading frame of single cell mode MBMS service in MBMS service;
the transmission time window is composed of multicast subframes in a multicast frame in a multi-cell mode; and the single cell mode MBMS service bearer consists of subframes for bearing the single cell mode MBMS service.
4. The transmission method according to claim 3, wherein the subframe in the indicated position is the first multicast subframe in a multicast frame in a multi-cell mode; and transmitting the subframe of the MBMS service for the first subframe in the frame carrying the MBMS service in the single cell mode.
5. The transmission method according to any one of claims 1 to 4,
the appointed resource is the first three orthogonal frequency division multiplexing OFDM symbols in the unicast subframe; or the first two OFDM symbols of the multicast subframe; or the third OFDM symbol of the multicast subframe;
the MBMS related control signaling is multicast control channel signaling or main multicast control channel signaling.
6. The transmission method according to any one of claims 1 to 4, characterized in that the method further comprises: and transmitting the MBMS related control signaling at the position of a designated subframe.
7. The transmission method according to any one of claims 1 to 4, characterized in that the method further comprises:
reading and analyzing the indication information of the position information of the subframe where the radio network temporary identifier of the MBMS service control signaling on the BCCH and the corresponding scheduling configuration information of the MBMS related control signaling are located;
detecting the radio network temporary identifier of the MBMS service control signaling on appointed resources, and acquiring the scheduling configuration information of the corresponding MBMS related control signaling;
and receiving the information of the MBMS related control signaling on corresponding resources according to the indication of the scheduling configuration information of the MBMS related control signaling.
8. A transmission system of MBMS control signaling scheduling information is characterized in that the system comprises an indication information sending module and a scheduling information sending module which are positioned at a network side, and an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module which are positioned at a terminal side; wherein,
the indication information sending module is used for sending the scheduling configuration information for indicating and bearing the MBMS related control signaling and the position of the subframe where the radio network temporary identifier is located on the BCCH;
the position of the indication bearing subframe is as follows: indicating the position of a frame where a radio network temporary identifier bearing the MBMS service control signaling and scheduling configuration information of the corresponding MBMS related control signaling are located, and indicating the position of a subframe of the radio network temporary identifier bearing the MBMS service control signaling and the scheduling configuration information of the corresponding MBMS related control signaling in the frame;
or indicating a wireless network temporary identifier bearing the MBMS service control signaling and a sending time window where scheduling configuration information of the corresponding MBMS related control signaling is located;
a scheduling information sending module, configured to send scheduling configuration information of the MBMS-related control signaling and the radio network temporary identifier on an appointed resource in the position of the indicated subframe;
the indication information acquisition module is used for acquiring the information of the position of the indication subframe on the BCCH;
a scheduling information acquisition module for reading the scheduling configuration information and the radio network temporary identifier of the MBMS related control signaling on the appointed resource in the indicated subframe position;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
9. The transmission system according to claim 8, wherein the transmission system further comprises an identifier setting module, configured to set a corresponding radio network temporary identifier for the MBMS-associated control signaling.
10. The transmission system according to claim 8, wherein the MBMS-associated control signaling is multicast control channel signaling or primary multicast control channel signaling.
11. A network equipment for transmitting MBMS control signaling scheduling information is characterized in that the network equipment comprises an indication information sending module and a scheduling information sending module; wherein,
the indication information sending module is used for sending the scheduling configuration information for indicating and bearing the MBMS related control signaling and the position of the subframe where the radio network temporary identifier is located on the BCCH;
the position of the indication bearing subframe is as follows: indicating the position of a frame where a radio network temporary identifier bearing the MBMS service control signaling and scheduling configuration information of the corresponding MBMS related control signaling are located, and indicating the position of a subframe of the radio network temporary identifier bearing the MBMS service control signaling and the scheduling configuration information of the corresponding MBMS related control signaling in the frame;
or a wireless network temporary identifier for indicating the bearing of the MBMS service control signaling and a sending time window of the scheduling configuration information of the corresponding MBMS related control signaling
And the scheduling information sending module is used for sending the scheduling configuration information of the MBMS related control signaling and the wireless network temporary identifier on the appointed resource in the position of the indicated subframe.
12. The network device of claim 11, wherein the network device further comprises an identifier setting module, configured to set a corresponding radio network temporary identifier for the MBMS-related control signaling;
the MBMS related control signaling is multicast control channel signaling or main multicast control channel signaling.
13. A terminal for transmitting MBMS control signaling scheduling information is characterized in that the terminal comprises an indication information acquisition module, a scheduling information acquisition module and a service information acquisition module; wherein,
the indication information acquisition module is used for acquiring the information of the position of the indication subframe on the BCCH;
the positions of the subframes are: the method comprises the steps that a wireless network temporary identifier for bearing MBMS service control signaling and the position of a frame where scheduling configuration information of MBMS related control signaling corresponding to the wireless network temporary identifier are located, and the position of a subframe of the wireless network temporary identifier for bearing MBMS service control signaling and the scheduling configuration information of the MBMS related control signaling corresponding to the wireless network temporary identifier are located in the frame;
or a wireless network temporary identifier bearing the MBMS service control signaling and a sending time window where the scheduling configuration information of the corresponding MBMS related control signaling is located;
a scheduling information acquisition module for reading the scheduling configuration information and the radio network temporary identifier of the MBMS related control signaling on the appointed resource in the indicated subframe position;
and the service information acquisition module receives and analyzes the MBMS related control signaling according to the scheduling configuration information of the MBMS related control signaling.
14. The terminal of claim 13, wherein the MBMS-associated control signaling is multicast control channel signaling or primary multicast control channel signaling.
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| CN200910077716.0A CN101808281B (en) | 2009-02-12 | 2009-02-12 | Method, system and device for transmitting MBMS (Multimedia Broadcast Multicast Service) control signaling scheduling information |
| PCT/CN2010/070337 WO2010091608A1 (en) | 2009-02-12 | 2010-01-22 | Method, system and apparatus for transmitting a scheduling information of mbms control signaling |
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| WO2015123845A1 (en) * | 2014-02-20 | 2015-08-27 | 华为技术有限公司 | Resource scheduling method, and data transmission method and equipment |
| CN105992158B (en) * | 2015-02-13 | 2020-09-08 | 中兴通讯股份有限公司 | Scheduling method and device for single-cell Multimedia Broadcast Multicast Service (MBMS) |
| CN105992363A (en) * | 2015-02-27 | 2016-10-05 | 北京信威通信技术股份有限公司 | Group communication establishing and communication method in cluster communication system |
| AU2016309108B2 (en) | 2015-08-14 | 2019-01-17 | Huawei Technologies Co., Ltd. | Multicast service reading and sending method, and relevant device |
| CN105764146B (en) * | 2016-02-05 | 2019-03-08 | 宇龙计算机通信科技(深圳)有限公司 | A kind of method of sub-frame configuration, method, relevant device and the system of data transmission |
| CN106454901A (en) | 2016-11-04 | 2017-02-22 | 维沃移动通信有限公司 | Detecting method and indicating method for downlink control channel, terminal and network equipment |
| CN108024349A (en) * | 2016-11-04 | 2018-05-11 | 维沃移动通信有限公司 | Detection method, sending method, network side equipment and the terminal of down control channel |
| CN112118540B (en) * | 2019-06-20 | 2023-09-05 | 华为技术有限公司 | Communication method and device |
| CN114765493B (en) * | 2021-01-12 | 2023-11-21 | 上海交通大学 | Method, receiving end, transmitting end and system for realizing service scheduling |
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