CN113950147A - Method and device for sending SC-PTM configuration information in NR cell - Google Patents
Method and device for sending SC-PTM configuration information in NR cell Download PDFInfo
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Abstract
The embodiment of the application provides a sending method and equipment of SC-PTM configuration information in an NR cell, wherein the method provides contents of the SC-PTM configuration information carried on an SC-MCCH in different SC-MCCH configuration modes in the NR cell: when configuring a unique SC-MCCH for each NR cell, SC-PTM configuration information carried by the SC-MCCH consists of general parameter configuration information and MBMS configuration information of each BWP for broadcasting MBMS, and when configuring the unique SC-MCCH for each BWP for broadcasting MBMS in the NR cell, the SC-PTM configuration information carried on the SC-MCCH at least consists of the general parameter configuration information and the MBMS configuration information of the BWP in which the SC-MCCH is positioned, so that the configured SC-MCCH can be broadcast in the NR cell.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a method and equipment for sending SC-PTM configuration information in an NR cell.
Background
Multimedia Broadcast Multicast Service (MBMS) is a typical Service supported by Long Term Evolution (LTE) system in The 3rd Generation Partnership Project (3 GPP) protocol, and The Service can be Broadcast in a Single Cell Point to Multipoint (SC-PTM) manner in an LTE Cell.
With the continuous development of wireless communication technology, 5G systems (5G systems, 5GS) have come into the lives of people. Currently, there are related art proposals for broadcasting MBMS in SC-PTM mode in New Radio Access (NR) cells in 5 GS. In the corresponding method, data of an MBMS is carried through a Single Cell Multicast Traffic Channel (SC-MTCH), and SC-PTM configuration information is carried through a Single Cell Multicast Control Channel (SC-MCCH). And the UE can receive the corresponding MBMS according to the SC-PTM configuration information on the SC-MCCH.
However, the existing method does not provide specific content of SC-PTM configuration information carried on an SC-MCCH in different SC-MCCH configuration modes, so that the SC-MCCH cannot be sent in an NR cell.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a method and a device for sending SC-PTM configuration information in an NR cell.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in a first aspect, an embodiment of the present application provides a method for sending SC-PTM configuration information in an NR cell, where the method includes the following steps: determining a configuration mode of an SC-MCCH in an NR cell broadcasting an MBMS in an SC-PTM mode;
when the determined configuration mode is that an SC-MCCH is configured in the NR cell, SC-PTM configuration information carried on the SC-MCCH is determined, wherein the SC-PTM configuration information consists of general parameter configuration information and MBMS configuration information of Bandwidth Segments (BWPs) of each broadcast MBMS in the NR cell;
when the determined configuration mode configures an SC-MCCH for each BWP of the MBMS by the NR cell, determining SC-PTM configuration information carried on the SC-MCCH configured on the BWP of each MBMS, wherein the SC-PTM configuration information at least consists of general parameter configuration information and MBMS configuration information of the BWP where the SC-MCCH is located;
and broadcasting the configured SC-MCCH on the NR cell, wherein the SC-MCCH bears the SC-PTM configuration information.
In one possible implementation, the MBMS configuration information of a BWP broadcasting an MBMS includes: the basic configuration information of the BWP, the configuration information of a Control-resource set (core) and a search space corresponding to a Physical Downlink Control Channel (PDCCH) on the BWP, and the configuration information of each MBMS broadcast on the BWP.
In one possible implementation manner, the basic configuration information of the BWP includes: the BWP number and the BWP time-frequency resource configuration information, the BWP time-frequency resource configuration information includes the CP type, the subcarrier spacing SCS, the initial RB subscript adopted by the BWP, and the BWP bandwidth.
In a possible implementation manner, the configuration information of the CORESET and the search space corresponding to the PDCCH on the BWP includes: and carrying configuration information of each group of CORESET and search space corresponding to the PDCCH of the scheduling information of each MBMS broadcast on the BWP.
In a possible implementation manner, when only 1 group of core sets and a search space are configured for a PDCCH carrying scheduling information of each MBMS on one BWP, the scheduling information of each MBMS on the BWP is carried to a User Equipment (UE) through the 1 group of core sets and the PDCCH sent on the search space;
when configuring a plurality of sets of CORESET and search spaces for PDCCH carrying each MBMS scheduling information on the BWP, the scheduling information of any one MBMS on the BWP is carried to UE through a set of CORESET in the plurality of sets of CORESET and the search spaces and the PDCCH sent on the search spaces.
In one possible implementation manner, for each BWP broadcasting an MBMS, the configuration information of the MBMS includes, for any MBMS broadcasted thereon: SC-MTCH configuration information list;
for any MBMS, when the MBMS employs a dynamic scheduling method, the SC-MTCH configuration information list in the configuration information of the MBMS includes: TMGI, SESSION ID, G-RNTI and SC-MTCH scheduling information of MBMS, wherein the SC-MTCH scheduling information comprises: DRX cycle T with OFFSET, activation timer onDurationTimer, and keep-alive timer DRX-inactivity timer;
for any MBMS, when the MBMS employs a semi-persistent scheduling mode, the SC-MTCH configuration information list in the configuration information of the MBMS includes: TMGI, SESSION ID, SPS G-RNTI and SC-MTCH scheduling information of the MBMS, wherein the SC-MTCH scheduling information is configuration information of semi-static resources allocated to the MBMS, and the MBMS adopts the allocated semi-static resources to broadcast periodically.
In a possible implementation manner, for any one MBMS, when the MBMS uses a dynamic scheduling manner, and when a PDCCH carrying MBMS scheduling information on a BWP broadcasting the MBMS corresponds to multiple groups of CORESET and search spaces, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a serial number of a search space;
for any MBMS, when the MBMS employs a semi-persistent scheduling method and the scheduling information of the MBMS is broadcast on the BWP broadcasting the MBMS through the PDCCH, if the PDCCH carrying the scheduling information of the MBMS on the BWP broadcasting the MBMS corresponds to multiple sets of CORESET and search space, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a sequence number of the search space.
In a possible implementation manner, when an MBMS-level parameter list of the MBMS is not empty, the configuration information of the MBMS further includes: an MBMS level parameter list, configured to provide dedicated parameters for a Physical Downlink Shared Channel (PDSCH) dedicated to the MBMS;
when the BWP-level parameter list is not empty, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH includes: a BWP-level parameter list for providing respective parameters for SC-MCCH dedicated PDSCH on BWP per broadcast MBMS;
when the cell level parameter list is not empty, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further includes: a cell-level parameter list for providing uniformly configured parameters for SC-MCCH dedicated PDSCH on all MBMS-broadcasted BWPs.
In a possible implementation manner, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further includes: a neighbor cell list for notifying all neighbor cells of a current cell to the UE.
In a possible implementation manner, if all MBMS in the NR cell are broadcasted in each cell in a special broadcasting manner, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further includes: cell level broadcast mode indication.
In a possible implementation manner, if not all the MBMS in the NR cell are broadcast in each cell in a special broadcast manner, but there is at least one BWP, and when all the MBMS are broadcast in each cell in a special broadcast manner, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further includes: BWP level broadcast mode indication.
In a possible implementation manner, if the MBMS is broadcast in each cell in a special broadcast manner, but only a part of the MBMS on the BWP where the MBMS is located is broadcast in each cell in the special broadcast manner, the configuration information of the MBMS further includes: and (5) broadcasting mode indication.
In a possible implementation manner, the one MBMS is broadcasted in each cell in a special broadcasting manner as follows:
when the MBMS adopts a dynamic scheduling mode, the MBMS adopts the same G-RNTI in different cells and broadcasts by adopting the same BWP, a PDCCH bearing the MBMS scheduling information is sent by adopting the same BWP, the same CORESET and the same search space in different cells, and the PSDCH special for the MBMS broadcasts by adopting the same PDSCH parameters in different cells;
when a semi-static scheduling mode is adopted for an MBMS, the broadcast of the MBMS in each cell in a special broadcast mode is as follows:
the MBMS adopts the same SPS G-RNTI in different cells, and adopts the same BWP and the same semi-static resource broadcast, and the PSDCH special for the MBMS adopts the same PDSCH parameter broadcast in different cells;
or
The MBMS adopts the same SPS G-RNTI in different cells and the same BWP broadcast, the PDCCH bearing the MBMS semi-persistent scheduling information adopts the same BWP, the same CORESET and the same search space to transmit in different cells, and the PSDCH special for the MBMS adopts the same PDSCH parameter to broadcast in different cells.
In a possible implementation manner, the configuration information of the MBMS further includes: and the adjacent cell MBMS service indication is used for informing the UE of broadcasting the adjacent cell of the current MBMS in all the adjacent cells.
In a possible implementation manner, the SC-PTM configuration information carried on the SC-MCCH configured on the BWP for broadcasting the MBMS further includes: MBMS configuration information of at least one other BWP.
In a second aspect, an embodiment of the present application provides a sending apparatus for SC-PTM configuration information in an NR cell, including:
a configuration mode determining module, configured to determine a configuration mode of an SC-MCCH in an NR cell that broadcasts an MBMS in an SC-PTM manner;
a first configuration information determining module, configured to determine SC-PTM configuration information carried on the SC-MCCH when the determined configuration mode is to configure an SC-MCCH in the NR cell, where the SC-PTM configuration information is composed of general parameter configuration information and MBMS configuration information of a bandwidth segment BWP of each broadcast MBMS in the NR cell;
a second configuration information determining module, configured to determine SC-PTM configuration information carried on an SC-MCCH configured on each BWP broadcasting the MBMS when the determined configuration mode configures an SC-MCCH for each BWP broadcasting the MBMS for the NR cell, where the SC-PTM configuration information at least consists of general parameter configuration information and MBMS configuration information of the BWP where the SC-MCCH is located;
and the information sending module is used for broadcasting the configured SC-MCCH in the NR cell, and the SC-MCCH bears the SC-PTM configuration information.
In a third aspect, an embodiment of the present application provides a sending device for SC-PTM configuration information in an NR cell, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method for sending SC-PTM configuration information in an NR cell as described in the first aspect above and in various possible designs of the first aspect.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer executes instructions are stored, and when a processor executes the computer executes the instructions, the sending method of SC-PTM configuration information in an NR cell according to the first aspect and various possible designs of the first aspect is implemented.
By adopting the scheme, the sending method and the equipment for SC-PTM configuration information in the NR cell provided by the embodiment of the application can respectively provide the detailed contents of the SC-PTM configuration information carried on the SC-MCCH in the corresponding configuration modes aiming at different SC-MCCH configuration modes in the NR cell. Specifically, when configuring a unique SC-MCCH for each NR cell, determining a BWP for transmitting the unique SC-MCCH, wherein scheduling information of the unique SC-MCCH and the SC-MCCH are transmitted on the BWP, and the SC-MCCH carries SC-PTM configuration information of the cell, wherein the information is a set of configuration information of each MBMS broadcast in an SC-PTM mode in the cell, and the information consists of general parameter configuration information and MBMS configuration information of each BWP for broadcasting the MBMS in the NR cell; when configuring a unique SC-MCCH for each BWP broadcasting MBMS in an NR cell, the SC-MCCH configured for the corresponding BWP is transmitted on the BWP, the scheduling information of the SC-MCCH is also transmitted on the BWP, and SC-PTM configuration information carried on the SC-MCCH at least consists of general parameter configuration information and MBMS configuration information of the BWP. More specifically, the general parameter configuration information is used to configure related parameters for PDSCH carrying MBMS and provide neighboring cell and networking related information, and the MBMS configuration information of a BWP broadcasting MBMS is a set of configuration information of each MBMS broadcasted on the BWP. And broadcasting the configured SC-MCCH in the NR cell, wherein the SC-MCCH bears corresponding SC-PTM configuration information, the UE obtains the SC-PTM configuration information borne by the SC-MCCH by receiving the corresponding SC-MCCH, and receives the corresponding MBMS according to the configuration information of each MBMS in the SC-PTM configuration information.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an architecture of a Next Generation Radio Access Network (NG-RAN) in a 5G system according to an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a method for sending SC-PTM configuration information in an NR cell according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a transmitting apparatus for SC-PTM configuration information in an NR cell according to an embodiment of the present application;
fig. 4 is a schematic diagram of a basic hardware architecture of a transmitting device for SC-PTM configuration information in an NR cell according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
The terms "first," "second," "third," and "fourth," if any, in the description and claims of this application and the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic diagram of an architecture of an NG-RAN in a 5G system according to an embodiment of the present invention. In the figure, a gNB is a base station of a 5G system, a cell controlled by the gNB is an NR cell, an ng-eNB is an enhanced LTE base station accessed to a 5G core network, and a cell controlled by the ng-eNB is an LTE cell. The gNB and the NG-eNB are respectively connected with the 5GC through NG interfaces, the gNB is interconnected through an Xn interface, the gNB is connected with the NG-eNB through an Xn interface, and the NG-eNB is interconnected through an Xn interface.
There has been proposed a related art method for broadcasting MBMS in an SC-PTM manner in an NR cell in 5 GS. In the corresponding method, data of one MBMS is carried through SC-MTCH, and SC-PTM configuration information is carried through SC-MCCH. And the UE receives each MBMS according to SC-PTM configuration information on the SC-MCCH.
However, the existing method does not provide specific content of SC-PTM configuration information carried on an SC-MCCH in different SC-MCCH configuration modes, so that the SC-MCCH cannot be broadcasted in an NR cell.
In order to solve the above problems, the present application provides a method for sending SC-PTM configuration information in an NR cell, which respectively provides detailed contents of SC-PTM configuration information carried on an SC-MCCH in different SC-MCCH configuration modes in the NR cell, and broadcasts each configured SC-MCCH in the NR cell, so that a UE can obtain SC-PTM configuration information thereon by receiving a corresponding SC-MCCH, and receives a corresponding MBMS according to the SC-PTM configuration information thereon.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 2 is a flowchart illustrating a method for sending SC-PTM configuration information in an NR cell according to an embodiment of the present application, where an execution subject of the embodiment of the present application may be a base station gNB in the embodiment of fig. 1. As shown in fig. 2, the method of this embodiment may include:
s201: and for the NR cell broadcasting the MBMS in the SC-PTM mode, determining the configuration mode of the SC-MCCH in the NR cell.
For an NR cell broadcasting MBMS in an SC-PTM mode, a base station needs to determine the configuration mode of an SC-MCCH in the NR cell and provide the detailed content of SC-PTM configuration information carried on the SC-MCCH in the corresponding SC-MCCH configuration mode, so that UE can receive each MBMS broadcasted in the NR cell according to the SC-PTM configuration information on the SC-MCCH.
The configuration mode of the SC-MCCH comprises the following steps: a unique SC-MCCH is configured in each NR cell and a unique SC-MCCH is configured in an NR cell for each BWP broadcasting MBMS.
S202: when the determined configuration mode is that an SC-MCCH is configured in an NR cell, SC-PTM configuration information carried on the SC-MCCH is determined, wherein the information consists of general parameter configuration information and MBMS configuration information of BWP of each broadcast MBMS in the NR cell; and when the determined configuration mode is that an SC-MCCH is configured for each BWP broadcasting the MBMS in the NR cell, determining SC-PTM configuration information carried on the SC-MCCH configured on the BWP broadcasting the MBMS, wherein the information at least comprises general parameter configuration information and MBMS configuration information of the BWP in which the SC-MCCH is positioned. The general parameter configuration information is used for configuring related parameters for a PDSCH carrying an MBMS and providing other general information, and the MBMS configuration information of any BWP broadcasting the MBMS is a set of configuration information of each MBMS broadcasted on the BWP.
In the embodiment of the present application, configuring one SC-MCCH in an NR cell may be understood as configuring only one SC-MCCH in an NR cell.
When configuring a unique SC-MCCH in an NR cell, determining the BWP for transmitting the unique SC-MCCH, wherein the scheduling information of the unique SC-MCCH and the SC-MCCH are transmitted on the BWP, and the SC-PTM configuration information carried on the unique SC-MCCH consists of general parameter configuration information and MBMS configuration information of the BWP for each broadcast MBMS.
Configuring one SC-MCCH for each BWP broadcasting MBMS in an NR cell may be understood as configuring only one SC-MCCH for each BWP broadcasting MBMS in an NR cell.
When configuring a unique SC-MCCH for each BWP broadcasting MBMS in an NR cell, the SC-MCCH configured for one BWP is transmitted on the BWP, and a PDCCH carrying the SC-MCCH scheduling information is also transmitted on the BWP. SC-PTM configuration information carried on SC-MCCH configured for BWP of each broadcast MBMS at least comprises general parameter configuration information and MBMS configuration information of the BWP. Optionally, the SC-PTM configuration information carried on the SC-MCCH configured for BWP of each broadcast MBMS further includes: MBMS configuration information of at least one other BWP.
S203: and broadcasting the configured SC-MCCH in the NR cell, wherein the SC-MCCH bears the SC-PTM configuration information.
As can be seen from the above description, in the embodiments of the present application, for different SC-MCCH configuration modes in an NR cell, detailed contents of SC-PTM configuration information carried on an SC-MCCH in the corresponding configuration modes are respectively given, and the configured SC-MCCH is broadcast in the NR cell, where the SC-MCCH carries the corresponding SC-PTM configuration information, and the UE obtains the SC-PTM configuration information carried on the SC-MCCH by receiving the corresponding SC-MCCH, and receives a corresponding MBMS according to configuration information of each MBMS in the SC-PTM configuration information.
In addition, in the embodiment of the present application, the MBMS configuration information of the BWP broadcasting the MBMS includes: basic configuration information of the BWP, configuration information of the CORESET and search space corresponding to the PDCCH on the BWP, and configuration information of each MBMS.
Wherein, for each BWP broadcasting the MBMS, the basic configuration information of the BWP includes: the number of the BWP and the time-frequency resource configuration information of the BWP.
Wherein, the BWP number may be determined as follows:
numbering each BWP configured on a downlink bandwidth from 0 in an NR cell, wherein the number of one BWP is the number of the BWP;
or
Each BWP broadcasting the MBMS is numbered from 0 in the NR cell, and the number of one BWP is the number of the BWP.
The second method may be preferentially adopted in the embodiment of the present application to determine the BWP number.
In a possible implementation manner, the time-frequency resource configuration information of the BWP includes a CP type used by the BWP, a subcarrier spacing SCS, a starting RB index, and a BWP bandwidth (the number of RBs included in the BWP), which may be specifically determined according to practical situations and is not particularly limited in this embodiment of the present application.
In a possible implementation manner, the configuration information of the CORESET and the search space corresponding to the PDCCH on the BWP includes: and carrying configuration information of each group CORESET and search space corresponding to PDCCH of scheduling information of each MBMS broadcast on the BWP.
In the embodiment of the present application, for each BWP broadcasting an MBMS, a PDCCH carrying scheduling information of each MBMS broadcasted on the BWP corresponds to 1 or more sets of CORESET and search space, where each set of CORESET and search space is composed of one CORESET and one search space defined on the CORESET. The configuration information of each group of CORESET and search space comprises: configuration information of the CORESET within the group and configuration information of the search space within the group. The configuration information of the CORESET and the search space corresponding to the PDCCH on the BWP broadcasting the MBMS is as follows: and carrying configuration information of each group CORESET and search space corresponding to the PDCCH of the scheduling information of each MBMS broadcast on the BWP.
For example, when only 1 set of core set and search space is configured for PDCCH carrying scheduling information of each MBMS on one BWP, the scheduling information of each MBMS on the BWP is carried to the UE through the only set of core set and PDCCH transmitted on the search space.
When configuring multiple sets of CORESET and search space for PDCCH carrying each MBMS scheduling information on a BWP, the scheduling information of any one MBMS on the BWP is carried to UE through one set of CORESET and search space in the multiple sets of CORESET and search space and PDCCH sent on the search space.
In one possible implementation manner, for each BWP broadcasting an MBMS, the configuration information of the MBMS includes, for any MBMS broadcasted thereon: SC-MTCH configuration information list.
In a possible implementation manner, for any MBMS, when the MBMS adopts a dynamic scheduling manner, the SC-MTCH configuration information list in the configuration information of the MBMS includes: the TMGI (Temporary Mobile Group Identifier) of the MBMS is used to identify one MBMS in an application layer, SESSION ID (SESSION ID) is used to identify a SESSION of one MBMS in an application layer, G-RNTI (Group RNTI, for identifying one MBMS in an air interface), and SC-MTCH scheduling information. The SC-MTCH scheduling information comprises: the DRX cycle T is associated with an OFFSET, an activation timer onDurationTimer and a keep alive timer DRX-inactivity timer.
In this embodiment of the present application, when a dynamic scheduling manner is adopted for one MBMS, a start position of each DRX cycle may be determined according to the DRX cycle T and the OFFSET in the SC-MTCH scheduling information, and a timer onDurationTimer is started from this position, during which the UE needs to continuously monitor the PDCCH scrambled by the G-RNTI. If the corresponding PDCCH is monitored, the UE starts a timer drx-InactivetyTimer, and the UE continuously monitors the corresponding PDCCH during the running period of the timer. The UE restarts the timer drx-inactivtytimer whenever the corresponding PDCCH is monitored. And when the UE monitors the corresponding PDCCH, the UE determines the scheduling information of the PDSCH corresponding to the SC-MTCH according to the DCI format on the PDCCH and receives the corresponding PDSCH according to the information.
In a possible implementation manner, for any MBMS, when the MBMS adopts a semi-persistent scheduling manner, the SC-MTCH configuration information list in the configuration information of the MBMS includes: TMGI, SESSION ID, SPS G-RNTI and SC-MTCH scheduling information of MBMS. The SC-MTCH scheduling information is configuration information of semi-static resources allocated to the MBMS, and the MBMS adopts the allocated semi-static resources to broadcast periodically.
For any one MBMS, when the MBMS uses a dynamic scheduling method, and when a PDCCH carrying MBMS scheduling information on a BWP broadcasting the MBMS corresponds to multiple groups of CORESET and search spaces, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a sequence number of the search space.
When the PDCCH corresponds to a plurality of groups of CORESET and search spaces on the BWP, the sequence numbers of the groups of CORESET and the search spaces are determined according to the sequence of the arrangement information of the groups of CORESET and the search spaces in the MBMS arrangement information of the BWP.
For any one MBMS, when the MBMS employs a dynamic scheduling manner, a group of CORESET and search space corresponding to the PDCCH carrying the MBMS scheduling information are determined by sequence numbers of the group of CORESET and search space, and the configuration information of the MBMS includes: a group of CORESET corresponding to the MBMS and a sequence number of the search space.
For any MBMS, when the MBMS adopts a semi-persistent scheduling scheme and scheduling information of the MBMS (i.e., configuration information of semi-persistent resources) is broadcast on a BWP broadcasting the MBMS through a PDCCH, if the PDCCH carrying the scheduling information of the MBMS on the BWP broadcasting the MBMS corresponds to multiple sets of CORESET and search space, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a sequence number of the search space.
And the general parameter configuration information in the SC-PTM configuration information on the SC-MCCH is used for providing corresponding parameters for the SC-MTCH special PDSCH and providing other general information. The method comprises the following specific steps:
here, in the physical layer, the processing procedure adopted by the SC-MTCH dedicated PDSCH (MBMS dedicated PDSCH) is the same as that adopted by the normal PDSCH (PDSCH carrying DTCH or DCCH). However, the parameters used by the SC-MTCH dedicated PDSCH in some processing steps need to be configured in a manner that is SC-MTCH specific. These parameters include:
PDSCH time domain resource allocation list, nRNTIAnd nIDInterleaving parameters, PDSCH resource allocation parameters, DMRS related parameters and PT-RS special parameters.
Wherein the content of the first and second substances,
for nRNTIAnd nIDIn PDSCH bit scrambling, c is calculated using these two parameters and the following formulainit
cinit＝nRNTI·215+q·214+nID
The 3GPP protocol specifies: for SC-MTCH dedicated PDSCH, n is used when dynamic scheduling is adopted for corresponding MBMSRNTIG-RNTI; when semi-persistent scheduling is employed for the corresponding MBMS, nRNTI＝SPSG-RNTI；
Is the physical layer cell ID of the current NR cell.
The interleaving parameter includes a PRB bundle Length.
The PDSCH resource allocation parameters include: pdsch-aggregation factor and resource allocation.
The DMRS related parameters include:
DMRS configuration type, maxLength, and DMRS-additionposition.
As described above
The 3GPP protocol specifies: for the SC-MTCH dedicated PDSCH,
refer to with DMRS specific parameters: DMRS configuration type, maxLength, and DMRS-additionposition.
The special PT-RS parameters comprise: timeDenstity and frequency Densty, resourceElementOffset and epre-Ratio.
Among the above parameters, the parameter values of the following parameters are not determined:
PDSCH time domain resource allocation list, interleaving parameter, PDSCH resource allocation parameter, DMRS special parameter and PT-RS special parameter.
Here, the configuration unit of each parameter in the 5 parameters is determined, when the configuration unit of one parameter is a cell, the parameter is configured uniformly for all MBMS broadcasted in the cell, and the name and value of the parameter are recorded in a cell-level parameter list; when the configuration unit of a parameter is BWP, configuring the parameter for each BWP broadcasting MBMS separately, wherein the parameter configured for each BWP independently is applicable to all MBMS on the BWP, and recording the name of the parameter and the parameter value configured for each BWP independently in a BWP-level parameter list, and each BWP corresponds to one parameter value; when the configuration unit of a parameter is MBMS, the parameter is configured separately for each MBMS, and the name and value of the parameter are recorded in the MBMS level parameter list.
According to the above configuration method, if an MBMS level parameter list of an MBMS is not empty, an "MBMS level parameter list" is added to the configuration information of the MBMS, and the list provides PDSCH parameters for the MBMS.
According to the above configuration method, if the BWP-level parameter list is not empty, the BWP-level parameter list is added to the general parameter configuration information, and the BWP-level parameter list provides the PDSCH parameters configured uniformly for the MBMS on each BWP.
According to the configuration method, if the cell level parameter list is not empty, a 'cell level parameter list' is added in the general parameter configuration information, and the list provides uniformly configured PDSCH parameters for all BWPs broadcasting MBMS.
In order to facilitate the UE to receive the same MBMS in different cells during mobility, the following MBMS mobility-related information needs to be provided in the generic parameter configuration information.
Adding a parameter in the general parameter configuration information: a neighbor cell list. The parameters include the respective neighbor cells of the current cell. Each adjacent cell is uniquely identified by the frequency point of the adjacent cell and the ID of the physical layer cell.
For each MBMS, in order to inform the UE of the neighbor cell broadcasting the current MBMS, a parameter is added to the configuration information of each MBMS: and indicating the MBMS service of the adjacent cell. The parameter is composed of N bits, and each bit corresponds to the neighboring cell list from the first neighboring cell to the last neighboring cell according to the sequence from left to right. When the corresponding bit is 1, it indicates that the corresponding neighbor cell provides the current MBMS, and when the corresponding bit is 0, it indicates that the corresponding neighbor cell does not provide the current MBMS.
When each MBMS in a cell is broadcasted in each cell in a special broadcasting mode, adding a parameter in the general parameter configuration information: when the parameter value is 1, the cell-level broadcast mode indication indicates that: all MBMS in the current cell are broadcasted based on a special broadcasting mode when being broadcasted in each cell.
When not every MBMS is broadcasted in each cell in a special broadcasting mode, if there is at least one BWP in the BWPs broadcasting the MBMS, and the MBMS is broadcasted in each cell in the special broadcasting mode, adding a parameter in the general parameter configuration information: the BWP level broadcast mode indication includes K bits, each bit corresponds to a BWP broadcasting MBMS, when each MBMS on a BWP is broadcasted in each cell in a special broadcast mode, the bit corresponding to the BWP in the BWP level broadcast mode indication has a value of 1, otherwise, the corresponding bit has a value of 0.
For each BWP broadcasting MBMS, if only part of MBMS is broadcasted in each cell in a special broadcasting mode, when one MBMS is broadcasted in each cell in the special broadcasting mode, adding a parameter in the configuration information of the MBMS: when the parameter value is 1, the broadcast mode indication indicates that: the current MBMS is broadcast based on a special broadcast mode when broadcast in each cell.
In this embodiment, the broadcasting of the MBMS in each cell in a special broadcasting manner is as follows:
when the MBMS adopts a dynamic scheduling mode, the MBMS adopts the same G-RNTI in different cells and broadcasts by adopting the same BWP, and the PDCCH bearing the MBMS scheduling information is sent by adopting the same BWP, the same CORESET and the same search space in different cells. The PSDCH dedicated to the MBMS broadcasts by adopting the same PDSCH parameters in different cells.
When a semi-static scheduling mode is adopted for an MBMS, the broadcast of the MBMS in each cell in a special broadcast mode is as follows:
the MBMS adopts the same SPS G-RNTI in different cells, and adopts the same BWP and the same semi-static resource broadcast, and the PSDCH special for the MBMS adopts the same PDSCH parameter broadcast in different cells;
or
The MBMS adopts the same SPS G-RNTI in different cells and the same BWP broadcast, and the PDCCH bearing the MBMS semi-persistent scheduling information is transmitted in different cells by adopting the same BWP, the same CORESET and the same search space. The PSDCH dedicated to the MBMS broadcasts by adopting the same PDSCH parameters in different cells.
The embodiment of the application respectively provides the detailed contents of SC-PTM configuration information carried on the SC-MCCH in corresponding configuration modes aiming at different SC-MCCH configuration modes in an NR cell.
When configuring a unique SC-MCCH in each NR cell, SC-PTM configuration information carried by the SC-MCCH consists of general parameter configuration information and MBMS configuration information of BWP of each broadcast MBMS in the cell, wherein the MBMS configuration information of the BWP of one broadcast MBMS comprises the following steps: BWP basic configuration information, configuration information of the CORESET and search space corresponding to the PDCCH on BWP, and configuration information of each MBMS.
When configuring a unique SC-MCCH for each BWP broadcasting the MBMS in an NR cell, SC-PTM configuration information on the SC-MCCH configured for the corresponding BWP at least consists of general parameter configuration information and MBMS configuration information of the BWP. Optionally, the SC-PTM configuration information carried on the SC-MCCH may further include MBMS configuration information of at least one other BWP.
Fig. 3 is a schematic structural diagram of a transmitting apparatus for SC-PTM configuration information in an NR cell according to an embodiment of the present application, corresponding to the transmitting method for SC-PTM configuration information in an NR cell according to the foregoing embodiment. For convenience of explanation, only portions related to the embodiments of the present application are shown. Fig. 3 is a schematic structural diagram of a transmitting apparatus for SC-PTM configuration information in an NR cell according to an embodiment of the present application. As shown in fig. 3, the transmitting apparatus 30 of SC-PTM configuration information in an NR cell includes: a configuration mode determining module 301, a first configuration information determining module 302, a second configuration information determining module 303 and an information sending module 304. The transmitting means of the SC-PTM configuration information in the NR cell may be a chip or an integrated circuit that realizes the function of the base station gNB. It should be noted here that the division of the configuration mode determining module, the first configuration information determining module, the second configuration information determining module, and the information sending module is only a division of one logic function, and these modules may be integrated or independent physically.
The configuration mode determining module 301 is configured to determine, in an NR cell that broadcasts an MBMS in an SC-PTM manner, a configuration mode of an SC-MCCH in the NR cell.
A first configuration information determining module 302, configured to determine SC-PTM configuration information carried on an SC-MCCH when the determined configuration mode is to configure an SC-MCCH in the NR cell, where the SC-PTM configuration information is composed of general parameter configuration information and MBMS configuration information of a bandwidth segment BWP of each broadcast MBMS in the NR cell.
A second configuration information determining module 303, configured to determine SC-PTM configuration information carried on an SC-MCCH configured on each BWP broadcasting the MBMS when the determined configuration mode configures an SC-MCCH for each BWP broadcasting the MBMS for the NR cell, where the SC-PTM configuration information at least includes general parameter configuration information and MBMS configuration information of the BWP where the SC-MCCH is located. Optionally, the SC-PTEM configuration information further includes: MBMS configuration information of at least one other BWP.
An information sending module 304, configured to broadcast the configured SC-MCCH in the NR cell, where the SC-MCCH carries the SC-PTM configuration information.
The apparatus provided in the embodiment of the present application may be configured to implement the technical solution of the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again in the embodiment of the present application.
Alternatively, fig. 4 schematically provides one possible basic hardware architecture of the transmitting device of SC-PTM configuration information in NR cells described in the present application.
Referring to fig. 4, a transmitting device 400 of SC-PTM configuration information in an NR cell includes at least one processor 401 and a communication interface 403. Further optionally, a memory 402 and a bus 404 may also be included.
The sending device 400 of the SC-PTM configuration information in the NR cell may be the above-mentioned base station gNB, which is not particularly limited in this application. In the transmitting apparatus 400 of the SC-PTM configuration information in the NR cell, the number of processors 401 may be one or more, and fig. 4 illustrates only one of the processors 401. Alternatively, the processor 401 may be a Digital Signal Processor (DSP), a Central Processing Unit (CPU), or a Graphics Processing Unit (GPU). If the transmitting device 400 of the SC-PTM configuration information in the NR cell has a plurality of processors 401, the types of the plurality of processors 401 may be different, or may be the same. Alternatively, the plurality of processors 401 of the transmitting device 400 of SC-PTM configuration information in an NR cell may also be integrated as a multicore processor.
The communication interface 403 may provide information input/output for the at least one processor. Any one or any combination of the following devices may also be included: a network interface (e.g., an ethernet interface), a wireless network card, etc. having a network access function.
Optionally, the communication interface 403 may also be used for data communication between the sending device 400 of SC-PTM configuration information in an NR cell and other computing devices or terminals.
Further alternatively, fig. 4 shows bus 404 as a thick line. The bus 404 may connect the processor 401 with the memory 402 and the communication interface 403. Thus, via bus 404, processor 401 may access memory 402 and may also interact with other computing devices or terminals using communication interface 403.
In the present application, sending apparatus 400 of SC-PTM configuration information in an NR cell executes computer instructions in memory 402, so that sending apparatus 400 of SC-PTM configuration information in an NR cell implements the sending method of SC-PTM configuration information in an NR cell provided in the present application, or so that sending apparatus 400 of SC-PTM configuration information in an NR cell deploys the sending apparatus of SC-PTM configuration information in an NR cell.
From the viewpoint of logical function division, for example, as shown in fig. 4, the memory 402 may include a configuration mode determining module 301, a first configuration information determining module 302, a second configuration information determining module 303, and an information sending module 304. The present invention includes only the instructions stored in the memory, and when executed, can implement the functions of the configuration mode determination module, the first configuration information determination module, the second configuration information determination module, and the information transmission module, respectively, without limiting to a physical structure.
In addition, the sending device of the SC-PTM configuration information in the NR cell may be implemented by software as shown in fig. 4, or may be implemented by hardware as a hardware module, or as a circuit unit.
The present application provides a computer-readable storage medium, the computer program product comprising computer instructions that instruct a computing device to execute the above-mentioned sending method of SC-PTM configuration information in an NR cell provided in the present application.
The present application provides a chip comprising at least one processor and a communication interface providing information input and/or output for the at least one processor. Further, the chip may also include at least one memory for storing computer instructions. The at least one processor is configured to invoke and execute the computer instructions to perform the sending method of SC-PTM configuration information in an NR cell provided by the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Claims (18)
1. A method for transmitting SC-PTM configuration information in an NR cell, comprising:
determining a configuration mode of a single-cell multicast control channel SC-MCCH in an NR cell in a new wireless access NR cell broadcasting a multimedia broadcast multicast service MBMS in a single-cell point-to-multipoint SC-PTM mode;
when the determined configuration mode is that an SC-MCCH is configured in the NR cell, SC-PTM configuration information carried on the SC-MCCH is determined, wherein the SC-PTM configuration information consists of general parameter configuration information and MBMS configuration information of bandwidth segmentation BWP of each broadcast MBMS in the NR cell;
when the determined configuration mode configures an SC-MCCH for each BWP of the MBMS by the NR cell, determining SC-PTM configuration information carried on the SC-MCCH configured on the BWP of each MBMS, wherein the SC-PTM configuration information at least consists of general parameter configuration information and MBMS configuration information of the BWP where the SC-MCCH is located;
and broadcasting the configured SC-MCCH on the NR cell, wherein the SC-MCCH bears the SC-PTM configuration information.
2. The method of claim 1, wherein the MBMS configuration information for a BWP broadcasting MBMS comprises: the basic configuration information of the BWP, the configuration information of a control resource set CORESET and a search space corresponding to a PDCCH of a physical downlink control channel on the BWP, and the configuration information of each MBMS broadcast on the BWP.
3. The method according to claim 2, wherein the basic configuration information of the BWP comprises: the BWP number and the BWP time-frequency resource configuration information, the BWP time-frequency resource configuration information includes the CP type, the subcarrier spacing SCS, the initial RB subscript adopted by the BWP, and the BWP bandwidth.
4. The method of claim 2, wherein the configuration information of the CORESET and the search space corresponding to the PDCCH on the BWP comprises: and carrying configuration information of each group of CORESET and search space corresponding to the PDCCH of the scheduling information of each MBMS broadcast on the BWP.
5. The method of claim 4, wherein when only 1 set of CORESET and search space are configured for the PDCCH carrying scheduling information of each MBMS on one BWP, the scheduling information of each MBMS on the BWP is carried to the user equipment UE through the 1 set of CORESET and the PDCCH sent on the search space;
when configuring a plurality of sets of CORESET and search spaces for PDCCH carrying each MBMS scheduling information on the BWP, the scheduling information of any one MBMS on the BWP is carried to UE through a set of CORESET in the plurality of sets of CORESET and the search spaces and the PDCCH sent on the search spaces.
6. The method of claim 2, wherein for each BWP broadcasting an MBMS, the configuration information of the MBMS comprises, for any MBMS broadcasted thereon: SC-MTCH configuration information list;
for any MBMS, when the MBMS employs a dynamic scheduling method, the SC-MTCH configuration information list in the configuration information of the MBMS includes: TMGI, SESSIONID, G-RNTI and SC-MTCH scheduling information of MBMS, wherein the SC-MTCH scheduling information comprises: DRX cycle T with OFFSET, activation timer onDurationTimer, and keep-alive timer DRX-inactivity timer;
for any MBMS, when the MBMS employs a semi-persistent scheduling mode, the SC-MTCH configuration information list in the configuration information of the MBMS includes: TMGI, SESSIONID, SPS G-RNTI and SC-MTCH scheduling information of the MBMS, wherein the SC-MTCH scheduling information is configuration information of semi-static resources allocated to the MBMS, and the MBMS adopts the allocated semi-static resources to broadcast periodically.
7. The method of claim 6, wherein for any MBMS, when the MBMS uses dynamic scheduling, and when a PDCCH carrying MBMS scheduling information on a BWP broadcasting the MBMS corresponds to multiple sets of CORESET and search space, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a serial number of a search space;
for any MBMS, when the MBMS employs a semi-persistent scheduling method and the scheduling information of the MBMS is broadcast on the BWP broadcasting the MBMS through the PDCCH, if the PDCCH carrying the scheduling information of the MBMS on the BWP broadcasting the MBMS corresponds to multiple sets of CORESET and search space, the configuration information of the MBMS further includes: a group of CORESET corresponding to the MBMS and a sequence number of the search space.
8. The method of claim 7, wherein when an MBMS-level parameter list of the MBMS is not empty, the configuration information of the MBMS further comprises: an MBMS level parameter list, wherein the MBMS level parameter list is used for providing special parameters for the PDSCH of the MBMS special physical downlink shared channel;
when the BWP-level parameter list is not empty, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH includes: a BWP-level parameter list for providing respective parameters for SC-MCCH dedicated PDSCH on BWP per broadcast MBMS;
when the cell level parameter list is not empty, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further includes: a cell-level parameter list for providing uniformly configured parameters for SC-MCCH dedicated PDSCH on all MBMS-broadcasted BWPs.
9. The method of claim 2, wherein the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further comprises: a neighbor cell list for notifying all neighbor cells of a current cell to the UE.
10. The method of claim 9, wherein if all MBMS in the NR cell are broadcasted in each cell in a special broadcasting manner, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further comprises: cell level broadcast mode indication.
11. The method of claim 9, wherein if not all MBMS in the NR cell are broadcast in the special broadcast mode in each cell, but there is at least one BWP, and all MBMS on the BWP are broadcast in each cell in the special broadcast mode, the general parameter configuration information in the SC-PTM configuration information carried on the SC-MCCH further comprises: BWP level broadcast mode indication.
12. The method of claim 9, wherein if the MBMS is broadcasted in each cell in a special broadcasting manner, but only a part of the MBMS is broadcasted in each cell in the special broadcasting manner on the BWP where the MBMS is located, the configuration information of the MBMS further comprises: and (5) broadcasting mode indication.
13. The method according to any of claims 10 to 12, wherein one MBMS is broadcast in each cell in a special broadcast mode as follows:
when the MBMS adopts a dynamic scheduling mode, the MBMS adopts the same G-RNTI in different cells and broadcasts by adopting the same BWP, a PDCCH bearing the MBMS scheduling information is sent by adopting the same BWP, the same CORESET and the same search space in different cells, and the PSDCH special for the MBMS broadcasts by adopting the same PDSCH parameters in different cells;
when a semi-static scheduling mode is adopted for an MBMS, the broadcast of the MBMS in each cell in a special broadcast mode is as follows:
the MBMS adopts the same SPS G-RNTI in different cells, and adopts the same BWP and the same semi-static resource broadcast, and the PSDCH special for the MBMS adopts the same PDSCH parameter broadcast in different cells;
or
The MBMS adopts the same SPS G-RNTI in different cells and the same BWP broadcast, the PDCCH bearing the MBMS semi-persistent scheduling information adopts the same BWP, the same CORESET and the same search space to transmit in different cells, and the PSDCH special for the MBMS adopts the same PDSCH parameter to broadcast in different cells.
14. The method of claim 9, wherein the configuration information of the MBMS further comprises: and the adjacent cell MBMS service indication is used for informing the UE of broadcasting the adjacent cell of the current MBMS in all the adjacent cells.
15. The method of claim 1, wherein the SC-PTM configuration information carried on the SC-MCCH configured on the BWP for one broadcast MBMS further comprises: MBMS configuration information of at least one other BWP.
16. A transmission apparatus of SC-PTM configuration information in an NR cell, comprising:
a configuration mode determining module, configured to determine a configuration mode of an SC-MCCH in an NR cell that broadcasts an MBMS in an SC-PTM manner;
a first configuration information determining module, configured to determine SC-PTM configuration information carried on the SC-MCCH when the determined configuration mode is to configure an SC-MCCH in the NR cell, where the SC-PTM configuration information is composed of general parameter configuration information and MBMS configuration information of a bandwidth segment BWP of each broadcast MBMS in the NR cell;
a second configuration information determining module, configured to determine SC-PTM configuration information carried on an SC-MCCH configured on each BWP broadcasting the MBMS when the determined configuration mode configures an SC-MCCH for each BWP broadcasting the MBMS for the NR cell, where the SC-PTM configuration information at least consists of general parameter configuration information and MBMS configuration information of the BWP where the SC-MCCH is located;
and the information sending module is used for broadcasting the configured SC-MCCH in the NR cell, and the SC-MCCH bears the SC-PTM configuration information.
17. A transmitting device of SC-PTM configuration information in an NR cell, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method of transmitting SC-PTM configuration information in an NR cell according to any of claims 1 to 15.
18. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the method of transmitting SC-PTM configuration information in an NR cell according to any of claims 1 to 15.
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