CN107820310B - PDSCH power setting method and device in SC-PTM - Google Patents

PDSCH power setting method and device in SC-PTM Download PDF

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CN107820310B
CN107820310B CN201610825505.0A CN201610825505A CN107820310B CN 107820310 B CN107820310 B CN 107820310B CN 201610825505 A CN201610825505 A CN 201610825505A CN 107820310 B CN107820310 B CN 107820310B
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identification information
pdsch
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CN107820310A (en
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魏立梅
陈迎
周志宏
曾奇志
袁乃华
范晨
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters

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Abstract

The embodiment of the invention provides a PDSCH power setting method and device in SC-PTM. The method comprises the following steps: determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service control channel (SC-MCCH); determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH; sending PDSCH corresponding to the SC-MCCH to the user equipment; determining first identification information and second identification information of a PDSCH corresponding to the SC-MTCH; determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH; and sending the PDSCH corresponding to the SC-MTCH to user equipment. The embodiment of the invention realizes the power setting of PDSCH corresponding to SC-MCCH and SC-MTCH respectively.

Description

PDSCH power setting method and device in SC-PTM
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a PDSCH power setting method and device in SC-PTM.
Background
The third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) introduces a Single Cell Point To multipoint (SC-PTM) feature, and a Single-Cell Multimedia Broadcast Multicast Service Control Channel (SC-MCCH) and a Single-Cell Multimedia Broadcast Multicast Service Channel (SC-MTCH) are added To the SC-PTM.
The SC-MCCH carries SC-PTM configuration information of a cell, and User Equipment (UE) in the cell that receives a Multimedia Broadcast Multicast Service (MBMS) all needs to receive the SC-MCCH, and the coverage area of the channel is the entire cell. A Physical Downlink Shared Channel (PDSCH) corresponding to the SC-MCCH cannot adopt a UE-specific P for receiving the MBMS serviceAIts transmit power is determined. P of PDSCH corresponding to SC-MCCHAShould be cell-specific. PDSCH corresponding to SC-MCCH is different from ordinary PDSCH sent to certain UE, and P used by PDSCH corresponding to SC-MCCHBP applicable to normal PDSCH may be different from that on SIB2B. The SC-MTCH bears a certain MBMS service, all the UE interested in the service in the cell can receive the service, and the PDSCH corresponding to the SC-MTCH is broadcasted to all the UE receiving the service in the cell. PDSCH corresponding to SC-MTCH can not adopt a UE special P for receiving MBMS serviceAIts transmit power is determined. P of PDSCH corresponding to SC-MTCHAShould be specific to the MBMS service, each MBMS service can be individually set with PA. PDSCHs corresponding to the SC-MTCHs can share the same PBHowever, due to the particularity of the MBMS service, P used by PDSCH corresponding to SC-MTCHBP possibly different from ordinary PDSCHB。
Since the PDSCH corresponding to SC-MCCH and SC-MTCH is a special PDSCH, the power of the PDSCH corresponding to SC-MCCH and SC-MTCH cannot be set by the existing PDSCH transmission power setting method.
Disclosure of Invention
The embodiment of the invention provides a PDSCH power setting method and device in SC-PTM (single carrier-packet transport channel) to realize the power setting of PDSCH corresponding to SC-MCCH (single carrier-multicast control channel) and SC-MTCH (single carrier-multicast control channel).
One aspect of the embodiments of the present invention is to provide a method for setting PDSCH power in SC-PTM, including:
determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service control channel (SC-MCCH);
determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH;
sending the PDSCH corresponding to the SC-MCCH to the user equipment according to the sending power of the A-type symbol and the sending power of the B-type symbol on the PDSCH corresponding to the SC-MCCH;
determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service channel (SC-MTCH);
determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH;
sending the PDSCH corresponding to the SC-MTCH to the user equipment according to the sending power of the A-type symbols and the sending power of the B-type symbols on the PDSCH corresponding to the SC-MTCH;
the first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
Another aspect of the embodiments of the present invention is to provide a PDSCH power setting apparatus in SC-PTM, including:
the system comprises a first determining module, a second determining module and a sending module, wherein the first determining module is used for determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service control channel (SC-MCCH); determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH;
a first sending module, configured to send, to the user equipment, a PDSCH corresponding to the SC-MCCH according to a sending power of a class symbol and a sending power of a class symbol on the PDSCH corresponding to the SC-MCCH;
a second determining module, configured to determine first identification information and second identification information of a physical downlink shared channel PDSCH corresponding to a single cell multimedia broadcast multicast service traffic channel SC-MTCH; determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH;
a second sending module, configured to send, to the ue, the PDSCH corresponding to the SC-MTCH according to the sending power of the class a symbol and the sending power of the class B symbol on the PDSCH corresponding to the SC-MTCH;
the first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
The method and the device for setting the PDSCH power in SC-PTM provided by the embodiment of the invention determine first identification information and second identification information of a PDSCH corresponding to SC-MCCH through an eNodeB, wherein the first identification information identifies the ratio of the transmission power of an A-type PDSCH symbol to the transmission power of a cell reference signal, the second identification information identifies the ratio of the transmission power of a B-type PDSCH symbol to the transmission power of the A-type PDSCH symbol, and the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, thereby realizing the power setting of the PDSCH corresponding to the SC-MCCH; in addition, the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, and the power setting of the PDSCH corresponding to the SC-MTCH is realized.
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Fig. 1 is a flowchart of a PDSCH power setting method in SC-PTM according to an embodiment of the present invention;
fig. 2 is a structural diagram of a PDSCH power setting apparatus in SC-PTM according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a flowchart of a PDSCH power setting method in SC-PTM according to an embodiment of the present invention. The embodiment of the invention provides a PDSCH power setting method in SC-PTM aiming at the problem that PDSCH corresponding to SC-MCCH and SC-MTCH is special PDSCH, so that the power of PDSCH corresponding to SC-MCCH and SC-MTCH can not be set by adopting the existing PDSCH transmitting power setting method, and the specific method steps are as follows:
step S101, determining first identification information and second identification information of a physical downlink shared channel PDSCH corresponding to a single-cell multimedia broadcast multicast service control channel SC-MCCH.
Step S102, determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH.
Step S103, sending the PDSCH corresponding to the SC-MCCH to the user equipment according to the sending power of the A-type symbol and the sending power of the B-type symbol on the PDSCH corresponding to the SC-MCCH.
The first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
A setting method of PDSCH transmission power is defined in the 3GPP protocol. The method comprises the following specific steps:
according to the difference of the relative positions of Resource Elements (REs) mapped to symbols on the PDSCH and REs mapped to Cell Reference Signals (CRSs), the symbols on the PDSCH are divided into two types: class a PDSCH symbols and class B PDSCH symbols. The class a PDSCH symbols refer to: the REs mapped by the PDSCH symbols and the REs mapped by the CRS are not on the same Orthogonal Frequency Division Multiplexing (OFDM) symbol. The class B PDSCH symbols refer to: the REs mapped by the PDSCH symbols and the REs mapped by the CRS are on the same OFDM symbol.
Rho is used as the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signalARepresents that the ratio of the transmission power of the type B PDSCH symbol to the transmission power of the cell reference signal is represented by rhoBRepresents the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class A PDSCH symbol as ρB/ρAAnd (4) showing.
The first identification information is used for identifying the ratio of the transmission power of the A-type PDSCH symbol to the transmission power of the cell reference signal, and the first identification information is PAIs represented by PAAnd rhoACan be expressed as:
when PDSCH is transmitted by 4 special antenna ports of cells in a transmission diversity mode:
ρA＝power-offset+PA+10log10(2)[dB] (1)
other scenarios:
ρA＝power-offset+PA[dB] (2)
the second identification information is used for identifying the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class A PDSCH symbol, and the second identification information is P-type identification informationBIndicates that P is the number of antenna ports specific to different cellsBAnd rhoB/ρACan be represented by table 1:
TABLE 1
Figure BDA0001115079050000051
In the prior art, all UEs in a cell share one second identification information PBEach UE in the cell has exclusive first identification information PA. When a base station, such as an Evolved Node B (eNodeB for short), establishes a cell, first, the transmission power of the CRS and the second identification information are determined according to a cell coverage. When one UE accesses, the base station determines first identification information of a PDSCH corresponding to the UE; then, the base station transmits power, the first identification information, the second identification information and the CRS according to the CRSThe formulas determine the transmit power of class a PDSCH symbols and the transmit power of class B PDSCH symbols on the PDSCH transmitted to the UE, respectively. The base station broadcasts the second identification Information to all UEs in the cell through a System Information Block 2(SIB2 for short), and the UEs in the cell share the second identification Information; when the UE accesses, the base station sends the first identification information of the UE to the UE through a dedicated signaling. The UE obtains the second identification information from SIB2, obtains the first identification information through dedicated signaling, and may obtain the channel estimation of the PDSCH from the channel estimation of the CRS according to the two identifications, and demodulate and decode the PDSCH.
In this embodiment, since the SC-PTM characteristic is introduced by the 3GPP, the SC-MCCH and SC-MTCH are added in the SC-PTM, and therefore, the powers of the PDSCH corresponding to the SC-MCCH and SC-MTCH need to be set respectively.
The method comprises the following specific steps:
the SC-MCCH bears SC-PTM configuration information of a cell, all UE (user equipment) receiving the MBMS service in the cell need to receive the channel, and the coverage range of the channel is the whole cell. PDSCH corresponding to SC-MCCH can not adopt UE special P for receiving MBMS serviceAIts transmit power is determined. P of PDSCH corresponding to SC-MCCHAShould be cell-specific. PDSCH corresponding to SC-MCCH is different from ordinary PDSCH sent to certain UE, and P used by PDSCH corresponding to SC-MCCHBP applicable to normal PDSCH may be different from that on SIB2B。
The SC-MTCH bears a certain MBMS service, all the UE interested in the service in the cell can receive the service, and the PDSCH corresponding to the SC-MTCH is broadcasted to all the UE receiving the service in the cell. PDSCH corresponding to SC-MTCH can not adopt a UE special P for receiving MBMS serviceAIts transmit power is determined. P of PDSCH corresponding to SC-MTCHAShould be specific to the MBMS service, each MBMS service can be individually set with PA. PDSCHs corresponding to the SC-MTCHs can share the same PBHowever, due to the particularity of the MBMS service, P used by PDSCH corresponding to SC-MTCHBP possibly different from ordinary PDSCHB。
In summary, it is necessary to provide a power setting method for a PDSCH corresponding to SC-MCCH and a power setting method for a PDSCH corresponding to SC-MTCH, and to send first identification information and second identification information of the PDSCH corresponding to SC-MCCH and send the first identification information and the second identification information of the PDSCH corresponding to SC-MTCH to a UE.
In this embodiment, the execution subject may be a base station eNodeB, and in step S101, the eNodeB needs to determine the first identification information P of the PDSCH corresponding to the SC-MCCHAAnd second identification information PB。
Before the eNodeB sends the PDSCH corresponding to the SC-MCCH, the eNodeB needs to determine the transmission power of the class a symbol and the transmission power of the class B symbol on the PDSCH corresponding to the SC-MCCH in step S102. In particular, eNodeB is according to PAAnd calculating the ratio rho of the transmitting power of the A-type PDSCH symbol to the transmitting power of the cell reference signal by the formulas (1) and (2)AIn addition, according to ρAAnd the transmitting power of the cell reference signal, and calculating the transmitting power of the A-type PDSCH symbols on the PDSCH corresponding to the SC-MCCH. In addition, the base station can also be based on the second identification information PBDetermining ρ in conjunction with Table 1B/ρAAccording to the obtained transmitting power and rho of the A-type PDSCH symbol on the PDSCH corresponding to the SC-MCCHB/ρAAnd calculating the transmission power of the B-type PDSCH symbol on the PDSCH corresponding to the SC-MCCH.
When the PDSCH corresponding to the SC-MCCH is transmitted each time, the eNodeB transmits the PDSCH corresponding to the SC-MCCH according to the calculated transmission power of the a-type symbol and the calculated transmission power of the B-type symbol on the PDSCH corresponding to the SC-MCCH in step S103.
The modulation mode of the PDSCH corresponding to the SC-MCCH may or may not fixedly adopt the QPSK modulation mode. When the modulation mode of the PDSCH corresponding to the SC-MCCH is fixed to be the QPSK modulation mode, the eNodeB does not need to send the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the UE. And when the modulation mode of the PDSCH corresponding to the SC-MCCH is not a fixed Quadrature Phase Shift Keying (QPSK) modulation mode, the eNodeB sends first identification information and second identification information of the PDSCH corresponding to the SC-MCCH to the UE.
And the UE obtains the channel estimation of the PDSCH corresponding to the SC-MCCH according to the channel estimation of the CRS and the first identification information and the second identification information sent by the eNodeB when receiving the PDSCH corresponding to the SC-MCCH each time, so that the PDSCH corresponding to the SC-MCCH can be demodulated and decoded.
The method for obtaining the channel estimation of the PDSCH by the UE according to the channel estimation of the CRS and the first and second identification information may be a method in the prior art, and is not described herein again.
Step S104, determining first identification information and second identification information of a physical downlink shared channel PDSCH corresponding to a single-cell multimedia broadcast multicast service channel SC-MTCH.
Step S105, determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH.
Step S106, sending the PDSCH corresponding to the SC-MTCH to the user equipment according to the sending power of the A-type symbol and the sending power of the B-type symbol on the PDSCH corresponding to the SC-MTCH.
Similarly, before the eNodeB sends the PDSCH corresponding to the SC-MTCH, the eNodeB needs to determine the first identification information P of the PDSCH corresponding to the SC-MTCH firstAAnd second identification information PBThen according to the transmission power of CRS and the first identification information P of PDSCH corresponding to SC-MTCHAAnd second identification information PBAnd determining the transmitting power of the A-type symbols and the transmitting power of the B-type symbols on the PDSCH corresponding to the SC-MTCH. And the eNodeB transmits the PDSCH corresponding to the SC-MTCH according to the determined transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MTCH when transmitting the PDSCH corresponding to the SC-MTCH.
Specifically, the eNodeB is based on the first identification information PAAnd the above formulas (1) and (2) can calculate the ratio rho of the transmission power of the A-type PDSCH symbol to the transmission power of the cell reference signalAIn addition, according to ρAAnd the transmitting power of the cell reference signal, and calculating the transmitting power of the A-type PDSCH symbols on the PDSCH corresponding to the SC-MTCH. In addition to this, the present invention is,the eNodeB can also be based on the second identification information PBDetermining ρ in conjunction with Table 1B/ρABased on the obtained transmission power sum rho of class A PDSCH symbol on PDSCH corresponding to SC-MTCHB/ρAAnd calculating the transmission power of the B-type PDSCH symbols on the PDSCH corresponding to the SC-MTCH.
The following may be specified in the 3GPP protocol: when the PDSCH corresponding to the SC-MTCH adopts amplitude modulation or is not configured by a high layer (when the eNodeB does not configure the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH for the UE), the first identification information of the PDSCH corresponding to the SC-MCCH is 0, the ratio of the transmission power of a type-B PDSCH symbol on the PDSCH corresponding to the SC-MCCH to the transmission power of a type-A PDSCH symbol is 1, at the moment, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH are fixed values, and the eNodeB does not need to transmit the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the UE.
When the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH are not fixed values, the eNodeB needs to send the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the UE.
And the UE obtains the channel estimation of the PDSCH corresponding to the SC-MTCH according to the channel estimation of the CRS and the first identification information and the second identification information sent by the eNodeB when receiving the PDSCH corresponding to the SC-MTCH each time, so that the PDSCH corresponding to the SC-MTCH can be demodulated and decoded.
The method for the UE to obtain the channel estimation of the PDSCH corresponding to the SC-MTCH according to the channel estimation of the CRS and the first identifier information and the second identifier information may be a method in the prior art, and is not described herein again.
In this embodiment, an eNodeB determines first identification information and second identification information of a PDSCH corresponding to an SC-MCCH, where the first identification information identifies a ratio of transmission power of a class-a PDSCH symbols to transmission power of a cell reference signal, the second identification information identifies a ratio of transmission power of B class-PDSCH symbols to transmission power of a class-a PDSCH symbols, and the eNodeB determines the transmission power of the a class symbol and the transmission power of the B class symbol on the PDSCH corresponding to the SC-MCCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, thereby implementing power setting of the PDSCH corresponding to the SC-MCCH; in addition, the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, and the power setting of the PDSCH corresponding to the SC-MTCH is realized.
On the basis of the above embodiment, for the PDSCH corresponding to SC-MCCH, the following 3 aspects can be introduced:
1) when the PDSCH corresponding to the SC-MCCH fixedly adopts a Quadrature Phase Shift Keying (QPSK) modulation scheme, since QPSK is Phase modulation and is not amplitude modulation, the user equipment is insensitive to the amplitude difference between the channel estimation of the PDSCH and the channel estimation of the CRS, and thus, the user equipment can demodulate the PDSCH directly based on the channel estimation of the CRS. In this case, the eNodeB does not need to transmit the P of the PDSCH corresponding to the SC-MCCHAAnd PBBroadcast to the UE. The PDSCH power corresponding to SC-MCCH may be set by eNodeB.
2) When the PDSCH corresponding to the SC-MCCH is not fixed to QPSK Modulation, and may use high-order Modulation such as Quadrature Amplitude Modulation (QAM) including 16 symbols or QAM including 64 symbols, the eNodeB needs to apply P of the PDSCH corresponding to the SC-MCCHAAnd PBBecause a System Information Block 1(SIB1 for short) is used to configure cell-level important parameters including cell reselection parameters, the P of the PDSCH corresponding to SC-MCCH may be used to determine a setting method for the PDSCH power, which is broadcasted to the UEAAnd PBThrough SIB1 configuration, in addition, System Information Block 2(SIB2 for short) is used for configuration including PBUE radio resource configuration common parameter in the inner cell, P of PDSCH corresponding to SC-MCCHAAnd PBIs a common parameter of UE in a cell, therefore, the P of PDSCH corresponding to SC-MCCH can also be usedAAnd PBConfigured through SIB 2.
Also, the transmission cycle of SIB1 is generally smaller than that of SIB2, and P is configured by SIB1AAnd PBThe UE may be the mostFast acquisition of P of SC-MCCHAAnd PB。
3) Provision is made on the protocol for: when PDSCH employs amplitude modulation, PAAnd ρB/ρATaking a fixed value or when higher layers are not configured, PAAnd ρB/ρATake a fixed value. Preferably, P is the amplitude modulation used for PDSCHA＝0dB，ρB/ρAWhen the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH are not configured in 1 or higher layer, PA＝0dB，ρB/ρA＝1。
When PDSCH corresponding to SC-MCCH is transmitted by 4 special antenna ports of cells in a transmission diversity mode:
ρA＝power-offset+PA+10log10(2)[dB]
other scenarios:
ρA＝power-offset+PA[dB]
for the PDSCH corresponding to SC-MCCH, since the PDSCH can only adopt Transmission mode 1 (TM 1 for short) and Transmission mode 2 (TM 2 for short), the PDSCH is transmitted through a single antenna port or transmitted in diversity, where the above formula is shown in the specificationpower-offsetIs 0 dB.
On the basis of the above embodiment, for the PDSCH corresponding to SC-MTCH, the first identification information PAAnd second identification information PBIs sent to the user equipment by different modes, specifically, for PDSCH corresponding to SC-MTCH, the first identification information PACan be configured by the following 4 ways:
1) the first identification information P of the PDSCH corresponding to the SC-MTCH is transmitted through the SC-MCCHAAnd sending the information to user equipment, wherein the SC-MTCH shares one piece of the first identification information. For example, configuring one P on SC-MCCHAOf the PAIs an optional IE applicable to all SC-MTCHs.
In addition, one cell may include a plurality of MBMS services, each of which may have a different PAHowever, in the field practical application, different MBMS services use the same for simplicityPAQuality of Service (QOS) of different MBMS services is implemented by setting different Modulation and Coding Schemes (MCS). In order to reduce the number of fragments of SC-PTM information on SC-MCCH, in order to reduce the bit number of SC-PTM configuration information on SC-MCCH as much as possible in the scene, a P suitable for all MBMS services is setA。
2) And sending first identification information of the PDSCH corresponding to the SC-MTCH to user equipment through SIB1 or SIB2, wherein the SC-MTCH shares one piece of the first identification information. For example, one P is configured by SIB1 or SIB2AOf the PAIs an optional IE applicable to all SC-MTCHs.
Compared with configuring one P on SC-MCCHAThe first identification information of the PDSCH corresponding to the SC-MTCH is sent to the ue through SIB1 or SIB2, which can ensure that the ue receives the P corresponding to the SC-MTCH fasterA。
3) And sending the first identification information of the PDSCH corresponding to each SC-MTCH to the user equipment through the SC-MCCH. For example, each SC-MTCH is configured with one P on SC-MCCHAOf the PAIs an optional IE for SC-MTCH, applicable only to the corresponding SC-MTCH. Different QOS of different MBMS services can be adapted to different QOS by adjusting PA.
4) Provision is made on the protocol for: when PDSCH employs amplitude modulation, PATaking a fixed value, or when the first identification information and the second identification information of PDSCH corresponding to SC-MTCH are not configured by the higher layer, PATake a fixed value. Preferably, P is the amplitude modulation used for PDSCHA0dB or no higher layer configuration, PA＝0dB。
When the first identification information of some SC-MTCHs has the same value and the first identification information of other SC-MTCHs has different values, the first identification information of each SC-MTCH can be configured through the above-mentioned mode (1) and mode (3) at the same time. Specifically, for each SC-MTCH with different values, first identification information is configured on the SC-MCCH for each SC-MTCH individually, and the identification information is only applicable to the SC-MTCH. For each SC-MTCH with the same first identification information, a common first identification information is configured on the SC-MCCH, and the identification information is suitable for the SC-MTCHs. Each of the SC-MTCHs is no longer individually configured with the first identification information.
In addition, for PDSCH corresponding to SC-MTCH, second identification information PBCan be configured by the following 4 ways:
1) and sending the second identification information of the PDSCH corresponding to the SC-MTCH to user equipment through the SC-MCCH. For example, P of PDSCH corresponding to SC-MTCH via SC-MCCHBBroadcast to the UE.
2) And sending second identification information of the PDSCH corresponding to the SC-MTCH to user equipment through SIB1 or SIB2, wherein the SC-MTCH shares one piece of the second identification information. For example, broadcast to the UEs via SIB1 or SIB 2. This parameter is configured by an optional IE and is applicable to all SC-MTCHs.
3) The protocol specifies: p of ordinary PDSCH configured by SIB2 for PDSCH corresponding to SC-MTCHBAnd is not separately configured. That is, in the prior art, the second identification information shared by the ue in the cell is used as the second identification information of the PDSCH corresponding to the SC-MTCH in this embodiment, and the second identification information of the PDSCH corresponding to the SC-MTCH is sent to the ue through the system information block 2SIB 2.
4) The protocol specifies: when amplitude modulation is used for PDSCH, ρB/ρATaking fixed values or higher layers not to configure PBTime, rhoB/ρATake a fixed value. Preferably, when amplitude modulation is used for PDSCH, ρB/ρANo configuration of P for 1 or higher layerBTime, rhoB/ρA＝1。
In this embodiment, the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MCCH according to the first identification information and the second identification information, thereby implementing demodulation and decoding of the PDSCH corresponding to the SC-MCCH; in addition, the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information, and the demodulation and decoding of the PDSCH corresponding to the SC-MTCH are realized.
First identification information P of PDSCH corresponding to SC-MCCH and SC-MTCHAAnd second identification information PBThe specific cell design is as follows:
configuring first identification information P of SC-MTCH through SC-MCCHAAnd second identification information PBFirst identification information PAAnd second identification information PBThe corresponding parameters and positions in the SC-PTM configuration information on the SC-MCCH are as follows, and the corresponding parameters are used for configuring the P suitable for all SC-MTCHsAAnd PB：
Figure BDA0001115079050000111
Figure BDA0001115079050000121
Figure BDA0001115079050000122
Configuring first identification information P of SC-MTCH through SC-MCCHAFirst identification information PAThe parameters and locations in the SC-PTM configuration information on SC-MCCH are as follows, and the corresponding parameters only apply to the corresponding SC-MTCH:
Figure BDA0001115079050000123
Figure BDA0001115079050000131
Figure BDA0001115079050000132
configuring first identification information P of SC-MCCH through SIB1AAnd second identification information PBFirst identification information P of SC-MTCHAAnd second identification information PBFirst identification information PAAnd second identification information PBThe parameters and positions in SIB1 are as follows:
Figure BDA0001115079050000133
Figure BDA0001115079050000141
Figure BDA0001115079050000151
Figure BDA0001115079050000161
configuring first identification information P of SC-MCCH through SIB2AAnd second identification information PBFirst identification information P of SC-MTCHAAnd second identification information PBFirst identification information PAAnd second identification information PBThe parameters and positions in SIB2 are as follows:
Figure BDA0001115079050000162
Figure BDA0001115079050000171
Figure BDA0001115079050000181
fig. 2 is a structural diagram of a PDSCH power setting apparatus in SC-PTM according to an embodiment of the present invention. The PDSCH power setting apparatus in SC-PTM described in this embodiment may specifically be an eNodeB in the foregoing method embodiment. The PDSCH power setting device in SC-PTM provided by the embodiment of the present invention may execute the processing procedure provided by the PDSCH power setting method in SC-PTM, as shown in fig. 2, the PDSCH power setting device in SC-PTM includes a first sending module 21, a first determining module 22, a second sending module 22 and a second determining module 24, where the first determining module 22 is configured to determine first identification information and second identification information of a PDSCH of a physical downlink shared channel corresponding to an SC-MCCH of a single-cell multimedia broadcast multicast service control channel; determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH; the first sending module 21 is configured to send, to the user equipment, the PDSCH corresponding to the SC-MCCH according to the sending power of the class a symbol and the sending power of the class B symbol on the PDSCH corresponding to the SC-MCCH; the second determining module 24 is configured to determine first identification information and second identification information of a physical downlink shared channel PDSCH corresponding to a single cell multimedia broadcast multicast service traffic channel SC-MTCH; determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH; the second sending module 23 is configured to send the PDSCH corresponding to the SC-MTCH to the user equipment according to the sending power of the class a symbol and the sending power of the class B symbol on the PDSCH corresponding to the SC-MTCH; the first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
The method comprises the steps that first identification information and second identification information of a PDSCH corresponding to an SC-MCCH are determined through an eNodeB, the first identification information identifies the ratio of the transmission power of an A-type PDSCH symbol to the transmission power of a cell reference signal, the second identification information identifies the ratio of the transmission power of a B-type PDSCH symbol to the transmission power of the A-type PDSCH symbol, and the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, so that the power setting of the PDSCH corresponding to the SC-MCCH is realized; in addition, the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, and the power setting of the PDSCH corresponding to the SC-MTCH is realized.
On the basis of the foregoing embodiment, the first sending module 21 is further configured to, when the modulation mode of the PDSCH corresponding to the SC-MCCH is not a fixed quadrature phase shift keying QPSK modulation mode, send the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment, so that the user equipment calculates the channel estimation of the PDSCH corresponding to the SC-MCCH according to the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH.
The first sending module 21 is specifically configured to send the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment through a system information block 1(SIB1) or a system information block 2(SIB 2).
The second sending module 23 is further configured to send the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment, so that the user equipment calculates the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH.
The second sending module 23 is specifically configured to send, to the user equipment, the first identification information of the PDSCH corresponding to the SC-MTCH through the SC-MCCH, where the SC-MTCH shares one piece of the first identification information; or transmitting first identification information of a PDSCH corresponding to the SC-MTCH to a user equipment through a system information block 1(SIB1) or a system information block 2(SIB2), the SC-MTCH sharing one piece of the first identification information; or sending the first identification information of the PDSCH corresponding to each SC-MTCH to the user equipment through the SC-MCCH.
In addition, the second sending module 23 is specifically configured to send the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment through the SC-MCCH; or transmitting second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment through a system information block 1(SIB1) or a system information block 2(SIB2), the SC-MTCH sharing one piece of the second identification information; or using second identification information shared by the user equipment in the cell as second identification information of the PDSCH corresponding to the SC-MTCH, and sending the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment through a system information block 2SIB2
In addition, when amplitude modulation is adopted for the PDSCH corresponding to the SC-MCCH or the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH are not configured by a high layer, the first identification information is 0, and the ratio of the transmission power of the B-type PDSCH symbol to the transmission power of the A-type PDSCH symbol is 1; when the PDSCH corresponding to the SC-MTCH adopts amplitude modulation or a high layer does not configure the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, the first identification information is 0, and the ratio of the transmission power of the B-type PDSCH symbol to the transmission power of the A-type PDSCH symbol is 1.
The PDSCH power setting apparatus in SC-PTM provided in the embodiments of the present invention may be specifically configured to execute the method embodiment provided in fig. 1, and specific functions are not described herein again.
In the embodiment of the invention, the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MCCH according to the first identification information and the second identification information, thereby realizing the demodulation and decoding of the PDSCH corresponding to the SC-MCCH; in addition, the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information, and the demodulation and decoding of the PDSCH corresponding to the SC-MTCH are realized.
In summary, in the embodiment of the present invention, the eNodeB determines the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, where the first identification information identifies the ratio of the transmission power of the class a PDSCH symbol to the transmission power of the cell reference signal, and the second identification information identifies the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class a PDSCH symbol, and the eNodeB determines the transmission power of the class a symbol and the transmission power of the class B symbol on the PDSCH corresponding to the SC-MCCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, thereby implementing the power setting of the PDSCH corresponding to the SC-MCCH; in addition, the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information, and the demodulation and decoding of the PDSCH corresponding to the SC-MTCH are realized; in addition, the eNodeB determines the transmission power of the A-type symbol and the transmission power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, and realizes the power setting of the PDSCH corresponding to the SC-MTCH; the eNodeB sends the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment, so that the user equipment can calculate the channel estimation of the PDSCH corresponding to the SC-MCCH according to the first identification information and the second identification information, and the demodulation and decoding of the PDSCH corresponding to the SC-MCCH are realized.
In the embodiments provided in the present invention, 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 invention 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.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
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 (16)

1. A PDSCH power setting method in SC-PTM is characterized by comprising the following steps:
determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service control channel (SC-MCCH);
determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH;
sending the PDSCH corresponding to the SC-MCCH to user equipment according to the sending power of the A-type symbol and the sending power of the B-type symbol on the PDSCH corresponding to the SC-MCCH;
determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service channel (SC-MTCH);
determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH;
sending the PDSCH corresponding to the SC-MTCH to the user equipment according to the sending power of the A-type symbols and the sending power of the B-type symbols on the PDSCH corresponding to the SC-MTCH;
the first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
2. The method of claim 1, wherein the modulation scheme of the PDSCH corresponding to the SC-MCCH is fixed by a QPSK modulation scheme.
3. The method of claim 1, wherein the modulation scheme of the PDSCH corresponding to the SC-MCCH is not fixed by a QPSK modulation scheme.
4. The method of claim 3, wherein before determining the transmission power of the class-A symbol and the transmission power of the class-B symbol on the PDSCH corresponding to the SC-MCCH according to the transmission power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH, the method further comprises:
and sending the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to user equipment so that the user equipment calculates the channel estimation of the PDSCH corresponding to the SC-MCCH according to the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH.
5. The method of claim 4, wherein the sending first identification information and second identification information of the PDSCH corresponding to the SC-MCCH to a user equipment comprises:
and sending the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment through a system information block 1SIB1 or a system information block 2SIB 2.
6. The method of claim 1, wherein before determining the transmit power of the class a symbols and the transmit power of the class B symbols on the PDSCH corresponding to the SC-MTCH according to the transmit power of the cell reference signal, the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH, the method further comprises:
and sending the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to user equipment, so that the user equipment calculates the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH.
7. The method of claim 6, wherein the sending first identification information and second identification information of the PDSCH corresponding to the SC-MTCH to a user equipment comprises:
sending first identification information of a PDSCH corresponding to the SC-MTCH to user equipment through the SC-MCCH, wherein the SC-MTCH shares one piece of the first identification information; or
Transmitting first identification information of a PDSCH corresponding to the SC-MTCH to user equipment through a system information block 1SIB1 or a system information block 2SIB2, wherein the SC-MTCH shares one piece of the first identification information; or
And sending the first identification information of the PDSCH corresponding to each SC-MTCH to the user equipment through the SC-MCCH.
8. The method of claim 6, wherein the sending first identification information and second identification information of the PDSCH corresponding to the SC-MTCH to a user equipment comprises:
sending second identification information of the PDSCH corresponding to the SC-MTCH to user equipment through the SC-MCCH; or
Transmitting second identification information of a PDSCH corresponding to the SC-MTCH to user equipment through a system information block 1SIB1 or a system information block 2SIB2, wherein the SC-MTCH shares one piece of the second identification information; or
And taking second identification information shared by the user equipment in the cell as second identification information of the PDSCH corresponding to the SC-MTCH, and sending the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment through a system information block 2SIB 2.
9. The method of claim 1, wherein when the PDSCH corresponding to the SC-MCCH is amplitude modulated or not configured by a higher layer, the first identification information is 0, and the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class a PDSCH symbol is 1;
when the PDSCH corresponding to the SC-MTCH adopts amplitude modulation or high-level non-configuration, the first identification information is 0, and the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class a PDSCH symbol is 1.
10. A PDSCH power setting apparatus in SC-PTM, comprising:
the system comprises a first determining module, a second determining module and a sending module, wherein the first determining module is used for determining first identification information and second identification information of a Physical Downlink Shared Channel (PDSCH) corresponding to a single cell multimedia broadcast multicast service control channel (SC-MCCH); determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MCCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MCCH;
a first sending module, configured to send, to a user equipment, a PDSCH corresponding to the SC-MCCH according to a sending power of a class symbol and a sending power of a class symbol on the PDSCH corresponding to the SC-MCCH;
a second determining module, configured to determine first identification information and second identification information of a physical downlink shared channel PDSCH corresponding to a single cell multimedia broadcast multicast service traffic channel SC-MTCH; determining the transmitting power of the A-type symbol and the transmitting power of the B-type symbol on the PDSCH corresponding to the SC-MTCH according to the transmitting power of the cell reference signal, and the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH;
a second sending module, configured to send, to the ue, the PDSCH corresponding to the SC-MTCH according to the sending power of the class a symbol and the sending power of the class B symbol on the PDSCH corresponding to the SC-MTCH;
the first identification information is used for identifying the ratio of the transmission power of the class-A PDSCH symbol to the transmission power of the cell reference signal, and the second identification information is used for identifying the ratio of the transmission power of the class-B PDSCH symbol to the transmission power of the class-A PDSCH symbol.
11. The device for setting PDSCH power in SC-PTM according to claim 10, wherein the first sending module is further configured to send the first identification information and the second identification information of the PDSCH corresponding to SC-MCCH to the user equipment when the modulation scheme of the PDSCH corresponding to SC-MCCH is not fixed to the QPSK modulation scheme, so that the user equipment calculates the channel estimation of the PDSCH corresponding to SC-MCCH according to the first identification information and the second identification information of the PDSCH corresponding to SC-MCCH.
12. The device of claim 11, wherein the first sending module is specifically configured to send first identification information and second identification information of the PDSCH corresponding to the SC-MCCH to the user equipment through a system information block 1SIB1 or a system information block 2SIB 2.
13. The device of claim 10, wherein the second sending module is further configured to send the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment, so that the user equipment calculates the channel estimation of the PDSCH corresponding to the SC-MTCH according to the first identification information and the second identification information of the PDSCH corresponding to the SC-MTCH.
14. The device of claim 13, wherein the second sending module is specifically configured to send first identification information of the PDSCH corresponding to the SC-MTCH to a user equipment through the SC-MCCH, and the SC-MTCH shares one piece of the first identification information; or
Transmitting first identification information of a PDSCH corresponding to the SC-MTCH to user equipment through a system information block 1SIB1 or a system information block 2SIB2, wherein the SC-MTCH shares one piece of the first identification information; or
And sending the first identification information of the PDSCH corresponding to each SC-MTCH to the user equipment through the SC-MCCH.
15. The device for setting PDSCH power in SC-PTM according to claim 13, wherein the second sending module is specifically configured to send the second identification information of the PDSCH corresponding to the SC-MTCH to the ue through the SC-MCCH; or
Transmitting second identification information of a PDSCH corresponding to the SC-MTCH to user equipment through a system information block 1SIB1 or a system information block 2SIB2, wherein the SC-MTCH shares one piece of the second identification information; or
And taking second identification information shared by the user equipment in the cell as second identification information of the PDSCH corresponding to the SC-MTCH, and sending the second identification information of the PDSCH corresponding to the SC-MTCH to the user equipment through a system information block 2SIB 2.
16. The device for setting PDSCH power in SC-PTM according to claim 10, wherein when PDSCH corresponding to the SC-MCCH is amplitude modulated or not configured by higher layer, the first identification information is 0, and the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class a PDSCH symbol is 1;
when the PDSCH corresponding to the SC-MTCH adopts amplitude modulation or high-level non-configuration, the first identification information is 0, and the ratio of the transmission power of the class B PDSCH symbol to the transmission power of the class a PDSCH symbol is 1.
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