CN111447565A - Method, device, system and storage medium for sending SIB (multimedia broadcast single-channel) special for MBMS (multimedia broadcast multicast service) - Google Patents

Method, device, system and storage medium for sending SIB (multimedia broadcast single-channel) special for MBMS (multimedia broadcast multicast service) Download PDF

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Publication number
CN111447565A
CN111447565A CN201910041215.0A CN201910041215A CN111447565A CN 111447565 A CN111447565 A CN 111447565A CN 201910041215 A CN201910041215 A CN 201910041215A CN 111447565 A CN111447565 A CN 111447565A
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sib
configuration information
area
base station
relevant area
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CN111447565B (en
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魏立梅
周志宏
袁乃华
范晨
朱玉梅
闫锐
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TD Tech Chengdu Co Ltd
Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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

Abstract

The invention provides a method, a device, a system and a storage medium for sending SIB special for MBMS. The method for sending the special SIB for the MBMS comprises the steps that MCE divides a cell broadcasting the MBMS into a plurality of areas, allocates air interface resources for the SIB of each area, and determines the configuration information of the SIB of each area; for a base station establishing an M2 interface with the MCE, the MCE determines a relevant area of the base station and sends configuration information of SIB of the relevant area to the station; the base station broadcasts the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area; and sending the SIB of the relevant area by adopting the determined air interface resource in each cell controlled by the base station in each relevant area. The method enables the UE in each cell in each area to obtain diversity gain when receiving the SIB.

Description

Method, device, system and storage medium for sending SIB (multimedia broadcast single-channel) special for MBMS (multimedia broadcast multicast service)
Technical Field
The present invention relates to communication technologies, and in particular, to a method, an apparatus, a System, and a storage medium for sending a System Information Block (SIB) dedicated to a Multimedia Broadcast Multicast Service (MBMS).
Background
In The long Term Evolution (L ong Term Evolution, L TE) system, The transmission modes of MBMS service include MBMS Single Frequency Network (MBSFN) mode, Single cell Point To multipoint (SC-PTM) mode and simulcast SC-PTM mode, wherein MBSFN mode and SC-PTM mode are The transmission modes of MBMS service supported by The third Generation Partnership Project (3 GPP) protocol, and simulcast SC-PTM mode is The transmission mode of MBMS service proposed in The invention patent with publication number CN 107205228A.
In the MBSFN scheme, each cell in an MBSFN area broadcasts configuration information of a Multicast Control Channel (MCCH) of the MBSFN area through SIB 13. Any cell in an MBSFN area may belong to multiple MBSFN areas, and the SIB13 of the cell simultaneously broadcasts the configuration information of MCCH of each MBSFN area to which the cell belongs. Thus, the information carried on the SIB13 of each cell within one MBSFN area is typically different. Moreover, the air interface resources allocated by the base station to the SIB13 of each cell are usually different. Therefore, the UE cannot obtain diversity gain when receiving SIB 13. In the present invention, the air interface resource is used to refer to all configuration information required for transmitting the corresponding physical channel.
In the simulcast SC-PTM approach, the same problem exists: each Cell in the simulcast area broadcasts configuration information of a simulcast Single Cell Multicast Control Channel (SC-MCCH) of the simulcast area through SIB20 or a new SIB, any Cell in one simulcast area may belong to multiple simulcast areas, SIB20 or the new SIB of the Cell simultaneously broadcasts configuration information of the simulcast SC-MCCH of each simulcast area to which the Cell belongs, and air interface resources allocated by the base station to SIB20 or the new SIB of each Cell are usually different. Therefore, the UE cannot obtain diversity gain when receiving SIB20 or a new SIB.
Disclosure of Invention
The invention provides a method, a device, a system and a storage medium for sending SIB special for MBMS, so that UE can obtain diversity gain when receiving SIB of one area.
The invention provides a method for sending SIB special for MBMS, which comprises the following steps:
the MCE divides a cell broadcasting the MBMS into a plurality of areas, allocates air interface resources for SIB of each area, and determines the configuration information of SIB of each area; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB in each region is configuration information of air interface resources allocated by the MCE to the SIB in each region; each area comprises a plurality of adjacent cells broadcasting MBMS service;
for a base station establishing an M2 interface with an MCE, the MCE determines a relevant area of the base station, and sends configuration information of an SIB of the relevant area to the base station, wherein the relevant area is one or more areas of a plurality of areas divided by the MCE, and at least one cell in each relevant area is a cell controlled by the base station;
the base station broadcasts the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area;
and the base station determines the air interface resource adopted by the SIB of each relevant area during transmission according to the received configuration information of the SIB of each relevant area, and transmits the SIB of the relevant area in each cell controlled by the base station in each relevant area by adopting the determined air interface resource.
Optionally, the method for transmitting the MBMS dedicated SIB further includes,
the MCE updates configuration information of the SIB for each of the plurality of regions.
Optionally, the configuration information of the SIB includes: identification of the region, SIB scheduling information, physical channel configuration information.
Optionally, the SIB scheduling information includes:
scheduling period, window start and number of consecutive repeated transmissions.
Optionally, the physical channel configuration information includes: the configuration information of the PMCH is physical multicast control channel, or the configuration information of the PDSCH is physical downlink shared channel.
Optionally, the PMCH configuration information includes: the length of a non-multicast single-frequency network MBSFN domain and a modulation coding strategy MCS adopted by a physical multicast control channel PMCH;
optionally, the PMCH configuration information includes: the length of the non-MBSFN domain, the length of the SIB and the modulation mode adopted by the PMCH;
optionally, the PMCH configuration information includes: the length of a non-MBSFN domain, MCS adopted by the PMCH and resource block RB resources occupied by the PMCH;
optionally, the PDSCH configuration information includes: a cyclic prefix CP type, a control domain length, RB resources occupied by the PDSCH and MCS adopted by the PDSCH;
optionally, the SIB further carries configuration information of the control channel change notification of the area.
The invention relates to a sending device of SIB special for MBMS, comprising: a determining module and a sending module;
the determining module is used for dividing a cell broadcasting the MBMS into a plurality of areas, allocating air interface resources for the SIB of each area and determining the configuration information of the SIB of each area; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB of each region is the configuration information of the air interface resource allocated to the SIB of each region by the determining module; each area comprises a plurality of adjacent cells broadcasting MBMS service;
the determining module is further configured to, for a sending module that establishes an M2 interface with the determining module, determine a relevant area of the sending module, and send configuration information of an SIB of the relevant area to the sending module, where the relevant area is one or more of a plurality of areas divided by the determining module, and at least one cell in each relevant area is a cell controlled by the sending module;
the transmission module is used for broadcasting the configuration information of the SIB of each relevant area in each cell controlled by the transmission module in each relevant area according to the received configuration information of the SIB of each relevant area;
the sending module is further configured to determine, according to the received configuration information of the SIB in each relevant area, an air interface resource used in sending the SIB in each relevant area, and send the SIB in the relevant area in each cell controlled by the sending module using the determined air interface resource.
The invention provides a system for sending SIB special for MBMS, comprising: an MCE and at least one base station;
the MCE is used for determining that a module is used for dividing a cell broadcasting the MBMS into a plurality of areas, the MCE allocates air interface resources for SIB of each area, and configuration information of SIB of each area is determined; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB in each region is configuration information of air interface resources allocated by the MCE to the SIB in each region; each area comprises a plurality of adjacent cells broadcasting MBMS service;
the MCE is also used for determining a relevant area of the base station for the base station which establishes an M2 interface with the MCE, and sending the configuration information of the SIB of the relevant area to the base station, wherein the relevant area is one or more of a plurality of areas divided by the MCE, and at least one cell in each relevant area is a cell controlled by the base station;
the base station is used for broadcasting the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area;
the base station is further configured to determine, according to the received configuration information of the SIB in each relevant area, an air interface resource used in sending the SIB in each relevant area, and send, in each cell controlled by the base station in each relevant area, the SIB in the relevant area using the determined air interface resource.
The present invention provides a storage medium having stored thereon program instructions that, when executed by a processor, implement the above-described method of transmission of MBMS-specific SIBs.
The invention provides a method, a device, a system and a storage medium for sending SIB special for MBMS. The method for sending the MBMS special SIB comprises the following steps: the MCE divides a cell broadcasting the MBMS into a plurality of areas, allocates air interface resources for SIB of each area, and determines the configuration information of SIB of each area; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB in each region is configuration information of air interface resources allocated by the MCE to the SIB in each region; each area comprises a plurality of adjacent cells broadcasting MBMS service; for a base station establishing an M2 interface with an MCE, the MCE determines a relevant area of the base station, and sends configuration information of an SIB of the relevant area to the base station, wherein the relevant area is one or more areas of a plurality of areas divided by the MCE, and at least one cell in each relevant area is a cell controlled by the base station; the base station broadcasts the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area; and the base station determines the air interface resource adopted by the SIB of each relevant area during transmission according to the received configuration information of the SIB of each relevant area, and transmits the SIB of the relevant area by adopting the air interface resource in each cell controlled by the base station in each relevant area. In the method, the SIB in one region only carries the configuration information of the control channel in the region, and the SIB uses the same air interface resource when being transmitted by each cell belonging to the region, so that the UE can combine the received signals of the SIB from different cells to obtain the diversity gain.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of an embodiment of a method for transmitting MBMS-specific SIB according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an MBMS dedicated SIB transmitting apparatus according to the present invention;
fig. 3 is a schematic structural diagram of a system for transmitting MBMS-dedicated SIBs according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of an embodiment of a method for sending MBMS dedicated SIBs according to the present invention. The sending method of the special MBMS SIB provided by the embodiment of the invention can be realized by a sending system of the special MBMS SIB through a software and/or hardware mode. The transmission system of the MBMS dedicated SIB may include a Multi-cell/multicast coordination network element (MCE) and at least one base station, where the base station may be an Evolved NodeB (eNodeB) or another type of base station. As shown in fig. 1, the method for transmitting MBMS dedicated SIB in this embodiment may include:
s101, the MCE divides a cell broadcasting the MBMS into a plurality of areas, the MCE allocates air interface resources for SIB of each area, and determines the configuration information of SIB of each area; the SIB of each region carries configuration information of the control channel of each region; the configuration information of the SIB of each area is the configuration information of the air interface resource allocated by the MCE to the SIB of each area; each area includes a plurality of neighboring cells broadcasting the MBMS service.
In this embodiment, the MCE divides a cell broadcasting the MBMS service into a plurality of areas, each area is composed of several adjacent cells among the plurality of cells broadcasting the MBMS service, different areas do not include the same cell, each area has a unique SIB, and the SIB carries configuration information of a control channel of the area, and may be referred to as an MBMS dedicated SIB. For each divided region, the MCE allocates air interface resources for the SIB of the region, and determines configuration information of the SIB. The configuration information of the SIB is configuration information of an air interface resource allocated by the MCE for the SIB. Optionally, for the divided region, when the MCE reallocates the air interface resource to the SIB in the region, the MCE updates the configuration information of the SIB in the region. When the MBMS service is transmitted in the region in an MBSFN mode, the region is an MBSFN region, and the SIB of the region carries the configuration information of the MCCH of the MBSFN region; when the MBMS service is sent in the area in a simulcast SC-PTM mode, the area is a simulcast area, and the SIB of the area bears the configuration information of the simulcast SC-MCCH of the simulcast area.
S102, for a base station establishing an M2 interface with the MCE, the MCE determines a relevant area of the base station, and sends configuration information of an SIB of the relevant area to the base station, wherein the relevant area is one or more areas of a plurality of areas divided by the MCE, and at least one cell in each relevant area is a cell controlled by the base station.
Specifically, for any base station that establishes an M2 interface with the MCE, if at least one cell in a certain area established by the MCE is a cell controlled by the base station, the MCE needs to send the configuration information of the SIB in the area to the base station, so that the base station broadcasts the configuration information of the SIB in each cell belonging to the area in the controlled cell. Specifically, the MCE sends the configuration information of the SIB of the region to the base station through dedicated signaling at an M2 interface. The M2 interface is an interface between the MCE and the base station, and the MCE exchanges information with the base station through the interface to manage the radio resources of each cell controlled by the base station.
S103, the base station broadcasts the configuration information of the SIB of the relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area.
Optionally, after receiving the configuration information of the SIB in the relevant area, the base station may store the configuration information of the SIB.
After receiving the configuration information of the SIB in each relevant area sent by the MCE, for any relevant area, the base station broadcasts the configuration information of the SIB in the area through the SIB1 or SIB2 in each cell belonging to the area in the controlled cell, and after receiving the configuration information of the SIB on the SIB1 or SIB2, the UE in each cell may receive the SIB according to the configuration information of the SIB. The UE may be a mobile phone, an intelligent terminal, a multimedia device, a streaming media device, and the like, which is not limited in the present invention.
S104, the base station determines the air interface resource adopted by the SIB of each relevant area in the sending process according to the received configuration information of the SIB of each relevant area, and sends the SIB of the relevant area in each cell controlled by the base station in each relevant area by adopting the determined air interface resource.
Specifically, for received configuration information of an SIB in any one relevant area, the base station determines, according to the configuration information of the SIB in the area, an air interface resource used when the SIB in the area is sent, and sends the SIB using the determined air interface resource in each cell belonging to the area in a cell controlled by the base station. Since the base station transmits the SIB in the area using the same air interface resource in each cell belonging to the area, the UE may regard the received signal of the SIB from each cell as a multipath signal, and may naturally obtain a diversity gain when receiving the SIB.
The method for sending the MBMS service dedicated SIB according to this embodiment includes: the MCE divides areas, each area comprises a plurality of cells for broadcasting the MBMS service, and preferably, each area comprises a plurality of adjacent cells for broadcasting the MBMS service; each region has a unique SIB, the SIB carries configuration information of a control channel of the region, the MCE allocates air interface resources for the SIB of each region, the configuration information of the SIB of the region is determined, and the configuration information of the SIB of each region is the configuration information of the air interface resources allocated for the SIB of each region by the MCE; the MCE sends the configuration information of the SIB of the relevant area to the base station; the base station broadcasts the SIB configuration information of a certain relevant area in each controlled area belonging to the area; the base station determines the air interface resource adopted when the SIB of a certain relevant area is sent according to the configuration information of the SIB of the area, and sends the SIB in each cell belonging to the area in the cell controlled by the base station by adopting the determined air interface resource. In summary, the base station sends the SIB in the area in each cell belonging to the area using the air interface resource allocated by the MCE, and the SIB in the area carries only the configuration information of the control channel in the area, so that the physical signals of the SIB sent by each cell in the area are completely the same, and the UE in the area may regard the received physical signals of the SIB from different cells as multipath signals, and obtain the diversity gain by combining the multipath signals.
In the above embodiment, if the transmission mode of the MBMS service is the MBSFN mode, the area is the MBSFN area, for one MBSFN area, the SIB in the MBSFN area carries the configuration information of the MCCH, and the base station transmits the SIB in the MBSFN area through a Physical Multicast Channel (PMCH) according to the configuration information of the SIB in the MBSFN area, and PMCH signals of each cell are completely the same. If the transmission mode of the MBMS is a simulcast SC-PTM mode, the area is a simulcast area, for one simulcast area, the SIB of the simulcast area bears the configuration information of the simulcast SC-MCCH, the base station transmits the SIB of the simulcast area through a PDSCH according to the configuration information of the SIB of the simulcast area, the Physical Downlink Shared Channel (PDSCH) is transmitted in the simulcast SC-PTM mode, and PDSCH signals of all cells are completely the same.
The following describes, with reference to a specific example, a process of determining, by the MCE in S101, configuration information of an SIB for each region. Based on the above embodiments, the configuration information of the MBMS-dedicated SIB may specifically include SIB scheduling information, physical channel configuration information, and may further include an Identifier (ID) of an area.
The SIB scheduling information in the configuration information of the MBMS dedicated SIB may specifically include: scheduling period, window start and number of consecutive repeated transmissions. The information is used to determine the period for transmitting the SIB, and the starting radio frame number, the starting subframe number, and the number of subframes for continuously transmitting the SIB in each period.
According to the scheduling period and the window starting point, the starting radio frame number and the starting subframe number of the SIB transmitted in each scheduling period can be determined. The number of subframes in which the SIBs are continuously transmitted from the starting subframe may be determined according to the number of repeated transmissions.
Specifically, the starting radio frame number and the starting subframe number of the transmission window of the SIB in each scheduling period are determined by the following formulas (1) and (2), respectively:
SFN mod T ═ WindowStart/10 equation (1)
Subframe No. WindowStart mod 10 equation (2)
The SFN is the initial radio frame number of a SIB sending window in each scheduling period; mod represents a modulo operation; t is a scheduling period, and is determined by an Information Element (IE) "scheduling period," the IE indicating the number of radio frames included in each scheduling period; WindowStart is determined by IE "window start"; subframe no is the starting subframe number of the SIB transmitted within the starting radio frame of the transmission window of the SIB in each scheduling period. From the subframe indicated by the initial subframe number in the initial radio frame, the SIB is repeatedly transmitted in consecutive downlink subframes, and the number of repeated transmissions or the number of subframes in which the SIB is repeatedly transmitted in each scheduling period is determined by IE "number of repeated transmissions".
The contents included in the physical channel configuration information in the configuration information of the MBMS dedicated SIB in the MBSFN mode and in the simulcast SC-PTM mode are illustrated below, respectively. The physical channel configuration information is used to determine the physical channel employed when transmitting the SIB in each subframe in which the MBMS-dedicated SIB is transmitted and all parameters required to transmit the physical channel.
If the MBMS service is transmitted in an MBSFN manner, an SIB in an MBSFN area only carries configuration information of MCCH in the MBSFN area, a Broadcast Control Channel (BCCH) carrying the SIB is mapped onto a Multicast Channel (MCH), and the MCH is mapped onto a PMCH. The physical channel configuration information in the configuration information of the MBMS dedicated SIB is PMCH configuration information.
If the BCCH and MBMS dedicated logical channel and MBMS Media Access Control (MAC) Control Element (CE) that are allowed to carry the SIB in the 3GPP protocol are multiplexed on the same MCH, the PMCH configuration information of the SIB includes: length of non-MBSFN domain, MCS employed by PMCH. The MBMS dedicated logical channel includes: MCCH and Multicast Traffic Channel (MTCH); the MBMS MAC CE includes: MCH Scheduling Information MAC CE (MCH Scheduling Information MAC Control Element) and Extended MCH Scheduling Information MAC CE (Extended MCH Scheduling Information MAC Control Element).
The PMCH configuration information of the MBMS dedicated SIB provides information required for PMCH transmission corresponding to the SIB in a static configuration manner. This static configuration avoids the use of PDCCH resources.
If the BCCH carrying the SIB, the MBMS dedicated logical channel, and the MBMS MAC CE are not allowed to be multiplexed on the same MCH in the 3GPP protocol, the PMCH carrying only the SIB monopolizes all the bandwidth in the entire MBMS domain of the MBSFN subframe, which greatly wastes air interface resources. To solve this problem, the PMCH configuration information of the SIB may be determined in any one of the following two ways.
In one implementation, the PMCH configuration information of the SIB includes: non-MBSFN domain length, SIB length, and modulation scheme adopted by PMCH. The base station carries the SIB through a BCCH in a Radio Resource Control (RRC) layer of a cell, where the length of information bits on the BCCH is equal to the length indicated by IE "SIB length", and the MAC layer transparently transmits the BCCH through the MCH: the transport blocks on the MCH are completely composed of this SIB. The modulation scheme adopted by the PMCH corresponding to the MCH is determined by IE "the modulation scheme adopted by the PMCH". The channel coding of the transport blocks on the MCH is kept unchanged.
In another implementation, the PMCH configuration information of the SIB includes: length of non-MBSFN domain, MCS adopted by PMCH, RB resource occupied by PMCH. When sending the PMCH carrying the SIB, the PMCH uses only the RB indicated by IE "RB resource occupied by PMCH," and sends the MBSFN Reference Signal (RS) corresponding to the MBSFN area only on the RB occupied by the PMCH. The process of determining the length of a Transport Block (TB) on the MCH and the modulation mode adopted by the TB according to the MCS adopted by the PMCH and the RB resource occupied by the PMCH is the same as the process of determining corresponding parameters according to the MCS adopted by the PDSCH and the RB resource occupied by the PDSCH in the 3GPP TS36.213 protocol. In the subframe for transmitting the PMCH, other unoccupied RBs may be used for transmitting PMCHs corresponding to SIBs of other MBSFN areas.
When the MBMS service is transmitted in a simulcast SC-PTM mode, an SIB in a simulcast area carries the configuration information of a simulcast SC-MCCH in the simulcast area, BCCH carrying the SIB is mapped to an exclusive downlink shared channel (D L-SCH), D L-SCH is mapped to an exclusive PDSCH, and PDSCH is transmitted in the simulcast SC-PTM mode.
Optionally, when the sending mode of the MBMS service is a simulcast SC-PTM mode, and when each Cell in a simulcast area still sends a Cell-specific reference signal (CRS) of each Cell in a simulcast bandwidth of a simulcast subframe, the PDSCH configuration information further includes: and configuration information of CRS mapping patterns in the simulcast region.
The configuration information of the CRS mapping pattern in the simulcast region comprises the following steps: in a cell which adopts 1 antenna port to transmit CRS in a simulcast region, all values of a physical layer cell ID module 6 are taken; in a cell which adopts 2 antenna ports to transmit CRS in a simulcast region, all values of a physical layer cell ID module 6 are taken; in a cell which adopts 4 antenna ports to transmit CRS in a simulcast region, all values of ID modulo 6 of a physical layer cell are obtained. The base station can determine Resource Elements (REs) occupied by CRSs transmitted by each cell in the simulcast subframe in a simulcast region according to the information. In the simulcast SC-PTM scheme, if the dedicated RS is used, these REs need to be avoided in RE mapping of the dedicated RS, and these REs need to be avoided in RE mapping of PDSCH corresponding to the simulcast SC-MTCH and the simulcast SC-MCCH.
The PDSCH configuration information of the special SIB for the MBMS provides the information needed when the PDSCH corresponding to the SIB is sent in a simulcast SC-PTM mode in a static configuration mode. This static configuration avoids the use of PDCCH resources.
Meanwhile, the ID of the area may specifically be an MBSFN area ID when the transmission mode of the MBMS service is an MBSFN mode, and may specifically be a simulcast area ID when the transmission mode of the MBMS service is a simulcast SC-PTM mode.
The base station can determine each subframe for transmitting the corresponding physical channel and the air interface resource adopted when the corresponding physical channel is transmitted according to the configuration information of the MBMS special SIB, namely, the same subframe can transmit the same physical signal of the MBMS special SIB through the same physical channel.
The following describes, with reference to a specific example, a process in which the MCE sends the configuration information of the SIB in the relevant area to the base station in S102.
The M2SETUP RESPONSE (M2SETUP RESPONSE) message, the base station CONFIGURATION UPDATE acknowledge (ENB CONFIGURATION UPDATE ACKNOW L EDGE) message, the MCE CONFIGURATION UPDATE (MCE CONFIGURATION UPDATE) message, and the MBMS Session scheduling INFORMATION (MBMS SCHEDU L ING INFORMATION) message.
In one implementation, in the M2 interface establishment process initiated by the base station, if the MCE receives an M2 establishment REQUEST (M2SETUP REQUEST) message sent by the base station, the MCE may send an M2 establishment response message to the base station, where the M2 establishment response message includes configuration information of SIBs already existing in relevant areas in each area of the MCE. Specifically, if at least one of the cells controlled by the base station belongs to an area already existing in the MCE, the area is a relevant area of the base station, and the MCE records the area ID. The MCE transmits the configuration information of the SIB of each recorded area to the base station through an M2setup response message.
In another implementation, in the M2 interface configuration update process, the MCE sends the configuration information of the SIB of the relevant area in the following area to the base station through dedicated signaling.
(1) The configuration information of the SIB is updated in each area.
(2) Newly created regions.
If the M2 interface configuration update process is initiated by the base station, for the base station sending the "ENB configuration update message", the MCE may send the configuration information of the SIB in the relevant area in the area to the base station through the "ENB configuration update confirm message". Specifically, for a base station that transmits an "ENB configuration update message", when at least one cell in the cells controlled by the base station belongs to one of the two regions, the region is a relevant region of the base station, and the MCE records the region. The MCE transmits the configuration information of the SIB of each recorded area to the base station through an "ENB configuration update confirm message".
If the M2 interface configuration update process is initiated by the MCE, the MCE determines each base station that receives the "MCE configuration update message", and for each determined base station, the MCE sends the configuration information of the SIB in the relevant area of the two areas to the base station through the "MCE configuration update message". Specifically, for a base station that establishes an M2 interface with an MCE, when at least one of cells controlled by the base station belongs to one of the two areas, the area is the relevant area of the base station, and the MCE records the base station and the area. For each recorded base station, the MCE sends the configuration information of the SIB of the corresponding respective recorded area to the base station through an "MCE configuration update message".
In yet another implementation, when the MCE sends the MBMS session scheduling information message to the base station, the MCE may send the configuration information of the SIB of the relevant area in the following two areas to the base station through the dedicated signaling.
(1) The configuration information of the SIB is updated in each area.
(2) Newly created regions.
Specifically, for a base station receiving the "MBMS session scheduling information message", if at least one cell in the cells controlled by the base station belongs to one of the two areas, the area is the relevant area of the base station, and the MCE records the area. The MCE transmits the configuration information of the SIB of each recorded area to the base station through an "MBMS session scheduling information message".
More specifically, in S101, before allocating air interface resources to the SIB in each region, the MCE determines information carried on the SIB in each region: when the area is an MBSFN area, the information carried on the SIB of the MBSFN area is the configuration information of the MCCH; and when the region is a simulcast region, the information carried on the SIB of the simulcast region is the configuration information of the simulcast SC-MCCH, and the MCE allocates air interface resources for the SIB of each region according to the length of the information carried on the SIB of the region.
More specifically, in S102, the MCE transmits the configuration information of the SIB of each relevant area to the base station, and simultaneously transmits the information carried on the SIB of each relevant area to the base station as the additional configuration information of the SIB.
And the base station determines the air interface resource adopted by the SIB of each relevant area during transmission according to the received configuration information of the SIB of each relevant area, and transmits the SIB of the relevant area in each cell controlled by the base station in each relevant area by adopting the determined air interface resource.
Further, in the above S104, before the SIB of each relevant area is sent in each cell controlled by the base station in each relevant area according to the configuration information of the SIB of each relevant area, the base station determines, according to the received additional configuration information of the SIB, information carried on the SIB, that is: and the information carried on the logical channel BCCH corresponding to the SIB.
On the basis of the foregoing embodiment, the SIB in one region may also preferably carry configuration information of a control channel change notification of the region, in addition to carrying the configuration information of the control channel of the region, accordingly, the length of information carried on the SIB in each region is the sum of the length of the configuration information of the control channel of the region and the length of the configuration information of the control channel change notification of the region, and the additional configuration information of the SIB in one region includes, in addition to the configuration information of the control channel of the region, preferably, also includes the configuration information of the control channel change notification of the region. Thus, when the UE in each cell in the area receives the SIB, the UE may also obtain the configuration information of the control channel change notification in the corresponding area from the SIB, so that the UE may also obtain the diversity gain when receiving the configuration information of the control channel change notification in the corresponding area.
Specifically, for the MBSFN area and the simulcast area, the control channel change notification is respectively: MCCH change notification and simulcast SC-MCCH change notification.
The invention also provides a device for transmitting the SIB special for the MBMS. Fig. 2 is a schematic structural diagram of an embodiment of an apparatus for transmitting MBMS-dedicated SIBs according to the present invention. As shown in fig. 2, the apparatus includes: a determination module 201 and a sending module 202.
The determination module 201 is configured to: dividing a cell broadcasting MBMS service into a plurality of areas, allocating air interface resources for SIB of each area, and determining the configuration information of SIB of each area; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB in each area is the configuration information of the air interface resource allocated to the SIB in each area; each area includes a plurality of neighboring cells broadcasting the MBMS service.
The determination module 201 is further configured to: for the sending module 202 that establishes the M2 interface with the determining module 201, determining a relevant area of the sending module, and sending configuration information of the SIB of the relevant area to the sending module 202, where the relevant area is one or more of a plurality of areas divided by the determining module 201, and at least one cell in each relevant area is a cell controlled by the sending module 202.
The sending module 202 is configured to: according to the received configuration information of the SIB of each relevant area, the configuration information of the SIB of the relevant area is broadcasted in each cell controlled by the sending module 202 in each relevant area.
The sending module 202 is further configured to: determining an air interface resource used in sending the SIB of each relevant region according to the received configuration information of the SIB of each relevant region, and sending the SIB of the relevant region in each cell controlled by the sending module 202 in each relevant region using the determined air interface resource.
Optionally, the determining module 201 is further configured to update configuration information of the SIB in each of the plurality of regions.
Optionally, each area includes a plurality of neighboring cells.
The configuration information of the SIB includes: identification of the region, SIB scheduling information, physical channel configuration information.
Optionally, the SIB scheduling information includes: scheduling period, window start and number of consecutive repeated transmissions.
Optionally, the physical channel configuration information includes: PMCH configuration information, or PDSCH configuration information.
Optionally, the PMCH configuration information includes: length of non-MBSFN domain, MCS employed by PMCH.
Optionally, the PMCH configuration information includes: the length of the non-MBSFN domain, the length of the SIB, and the modulation scheme adopted by the PMCH.
Optionally, the PMCH configuration information includes: length of non-MBSFN domain, MCS adopted by PMCH, RB resource occupied by PMCH.
Optionally, the PDSCH configuration information includes: CP type, control domain length, RB resources occupied by PDSCH and MCS adopted by PDSCH.
Optionally, the SIB further carries configuration information of a control channel change notification of the region.
The apparatus for transmitting the MBMS dedicated SIB according to this embodiment may be configured to perform the method for transmitting the MBMS dedicated SIB according to the embodiment shown in fig. 1, and the implementation principle and the technical effect are the same, and are not described herein again.
The invention also provides a system for transmitting the SIB special for the MBMS. Fig. 3 is a schematic structural diagram of a system for transmitting MBMS-dedicated SIBs according to the present invention. As shown in fig. 3, the system for transmitting MBMS-dedicated SIBs includes: MCE301 and at least one base station 302; two base stations are illustrated in fig. 3.
The MCE301 is configured to divide a cell broadcasting the MBMS service into multiple regions, allocate an air interface resource to an SIB of each region, and determine configuration information of the SIB of each region; the SIB of each area carries the configuration information of the control channel of each area; the configuration information of the SIB in each region is configuration information of air interface resources allocated to the SIB in each region by the MCE 301; each area includes a plurality of neighboring cells broadcasting the MBMS service.
The MCE301 is further configured to, for a base station 302 that establishes an M2 interface with the MCE301, the MCE301 determines a relevant area of the base station 302, and sends configuration information of SIBs of the relevant area to the base station 302, where the relevant area is one or more areas of a plurality of areas divided by the MCE, and each relevant area has at least one cell that is a cell controlled by the base station 302.
The base station 302 is configured to broadcast the configuration information of the SIB of each relevant area in each cell controlled by the base station 302 in each relevant area according to the received configuration information of the SIB of the relevant area.
The base station 302 is further configured to determine, according to the received configuration information of the SIB in each relevant area, an air interface resource used in sending the SIB in each relevant area, and send the SIB in the relevant area in each cell controlled by the base station 302 using the determined air interface resource.
Optionally, MCE301 is further configured to update configuration information of the SIB for each of the plurality of regions.
Optionally, each area includes a plurality of neighboring cells.
The configuration information of the SIB includes: identification of the region, SIB scheduling information, physical channel configuration information.
Optionally, the SIB scheduling information includes: scheduling period, window start and number of consecutive repeated transmissions.
Optionally, the physical channel configuration information includes: PMCH configuration information, or PDSCH configuration information.
Optionally, the PMCH configuration information includes: length of non-MBSFN domain, MCS employed by PMCH.
Optionally, the PMCH configuration information includes: the length of the non-MBSFN domain, the length of the SIB, and the modulation scheme adopted by the PMCH.
Optionally, the PMCH configuration information includes: length of non-MBSFN domain, MCS adopted by PMCH, RB resource occupied by PMCH.
Optionally, the PDSCH configuration information includes: CP type, control domain length, RB resources occupied by PDSCH and MCS adopted by PDSCH.
Optionally, the SIB further carries configuration information of a control channel change notification of the region.
The system for transmitting the MBMS dedicated SIB according to this embodiment may be configured to perform the method for transmitting the MBMS dedicated SIB according to the embodiment shown in fig. 1, and the implementation principle and the technical effect are the same, and are not described herein again.
The present invention may also provide a storage medium having stored thereon program instructions that, when executed by a processor, implement the method of transmitting MBMS-specific SIBs of the embodiment shown in fig. 1.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. A method for transmitting MBMS special SIB, comprising:
the method comprises the steps that a multi-cell multicast coordination network element MCE divides a cell for broadcasting a multimedia broadcast multicast service MBMS service into a plurality of regions, the MCE allocates air interface resources for a system information block SIB of each region, and configuration information of the SIB of each region is determined; the SIB of each area carries configuration information of the control channel of each area; the configuration information of the SIB of each region is configuration information of air interface resources allocated by the MCE to the SIB of each region; each area comprises a plurality of adjacent cells for broadcasting MBMS;
for a base station establishing an M2 interface with the MCE, the MCE determining a relevant area of the base station, and sending configuration information of an SIB of the relevant area to the base station, where the relevant area is one or more areas of the multiple areas, and at least one cell in each relevant area is a cell controlled by the base station;
the base station broadcasts the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of each relevant area;
and the base station determines the air interface resource adopted by the SIB of each relevant area during transmission according to the received configuration information of the SIB of each relevant area, and transmits the SIB of each relevant area by adopting the air interface resource in each cell controlled by the base station in each relevant area.
2. The method of claim 1, further comprising,
the MCE updates configuration information of SIBs for each of the plurality of regions.
3. The method of claim 1, wherein the configuration information of the SIB comprises: identification of the region, SIB scheduling information, physical channel configuration information.
4. The method of claim 3, wherein the SIB scheduling information comprises:
scheduling period, window start and number of consecutive repeated transmissions.
5. The method of claim 3, wherein the physical channel configuration information comprises: the configuration information of the PMCH is physical multicast control channel, or the configuration information of the PDSCH is physical downlink shared channel.
6. The method of claim 5, wherein the PMCH configuration information includes: the length of a non-multicast single frequency network MBSFN domain and a modulation coding strategy MCS adopted by a physical multicast channel PMCH.
7. The method of claim 5, wherein the PMCH configuration information includes: the length of the non-MBSFN domain, the length of the SIB and the modulation mode adopted by the PMCH.
8. The method of claim 5, wherein the PMCH configuration information includes: the length of a non-MBSFN domain, MCS adopted by the PMCH and resource block RB resources occupied by the PMCH.
9. The method of claim 5, wherein the PDSCH configuration information comprises: a Cyclic Prefix (CP) type, a control domain length, RB resources occupied by the PDSCH, and a Modulation and Coding Scheme (MCS) adopted by the PDSCH.
10. The method of any of claims 1-9, wherein the SIB further carries configuration information for a control channel change notification for the region.
11. An apparatus for transmitting MBMS-dedicated SIBs, comprising: a determining module and a sending module;
the determining module is used for dividing a cell for broadcasting the multimedia broadcast multicast service MBMS into a plurality of areas, allocating air interface resources for a system information block SIB of each area, and determining the configuration information of the SIB of each area; the SIB of each area carries configuration information of the control channel of each area; the configuration information of the SIB of each region is the configuration information of the air interface resource allocated to the SIB of each region by the determination module; each area comprises a plurality of adjacent cells for broadcasting MBMS;
the determining module is further configured to determine, for a sending module that establishes an M2 interface with the determining module, a relevant area of the sending module, and send configuration information of an SIB of the relevant area to the sending module, where at least one cell in the relevant area is controlled by the sending module;
the transmission module is configured to broadcast the configuration information of the SIB of each relevant area in each cell controlled by the transmission module in each relevant area according to the received configuration information of the SIB of each relevant area;
the sending module is further configured to determine, according to the received configuration information of the SIB in each relevant area, an air interface resource used in sending the SIB in each relevant area, and send, in each cell controlled by the sending module in each relevant area, the SIB in each relevant area using the air interface resource.
12. A system for transmitting MBMS-specific SIBs, comprising: a multi-cell multicast coordination network element MCE and at least one base station;
the MCE is used for dividing a cell for broadcasting the Multimedia Broadcast Multicast Service (MBMS) into a plurality of areas, the MCE allocates air interface resources for a System Information Block (SIB) of each area, and determines the configuration information of the SIB of each area; the SIB of each area carries configuration information of the control channel of each area; the configuration information of the SIB of each region is configuration information of air interface resources allocated by the MCE to the SIB of each region; each area comprises a plurality of adjacent cells for broadcasting MBMS;
the MCE is also used for determining a relevant area of the base station for the base station which establishes an M2 interface with the MCE, and sending the configuration information of the SIB of the relevant area to the base station, wherein at least one cell in the relevant area is controlled by the base station;
the base station is used for broadcasting the configuration information of the SIB of each relevant area in each cell controlled by the base station in each relevant area according to the received configuration information of the SIB of the relevant area;
the base station is further configured to determine, according to the received configuration information of the SIB in the relevant area, an air interface resource used in sending the SIB in each relevant area, and send, in each cell controlled by the base station in each relevant area, the SIB in each relevant area using the air interface resource.
13. A storage medium having stored thereon program instructions which, when executed by a processor, implement the method of transmission of the MBMS-specific SIB of any one of claims 1 to 10.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114727299A (en) * 2021-01-04 2022-07-08 中国移动通信有限公司研究院 System information sending method, system information receiving method, terminal and base station

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2051410A1 (en) * 2006-10-30 2009-04-22 Panasonic Corporation Wireless communication base station device and wireless communication method
CN102264031A (en) * 2010-05-25 2011-11-30 中兴通讯股份有限公司 Method and system for distributing radio resources for multicast control channel
CN106341839A (en) * 2015-07-07 2017-01-18 电信科学技术研究院 Information reporting/receiving method and device and bearer establishment method and device
CN107295484A (en) * 2016-03-31 2017-10-24 中兴通讯股份有限公司 The method of reseptance and mobile terminal of multimedia broadcast multi-broadcasting business, base station
CN108141815A (en) * 2015-08-14 2018-06-08 瑞典爱立信有限公司 System information broadcast in wireless network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2051410A1 (en) * 2006-10-30 2009-04-22 Panasonic Corporation Wireless communication base station device and wireless communication method
CN102264031A (en) * 2010-05-25 2011-11-30 中兴通讯股份有限公司 Method and system for distributing radio resources for multicast control channel
CN106341839A (en) * 2015-07-07 2017-01-18 电信科学技术研究院 Information reporting/receiving method and device and bearer establishment method and device
CN108141815A (en) * 2015-08-14 2018-06-08 瑞典爱立信有限公司 System information broadcast in wireless network
CN107295484A (en) * 2016-03-31 2017-10-24 中兴通讯股份有限公司 The method of reseptance and mobile terminal of multimedia broadcast multi-broadcasting business, base station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114727299A (en) * 2021-01-04 2022-07-08 中国移动通信有限公司研究院 System information sending method, system information receiving method, terminal and base station

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