WO2017201705A1 - Unicast data transmission method and device - Google Patents

Abstract

Disclosed are a unicast data transmission method and device, which relate to the technical field of communications, and can improve the utilization ratio of MBSFN sub-frames and avoid waste of wireless resources. The specific solution is: an eNB sending MBMS scheduling information to a user equipment (UE), wherein the MBMS scheduling information comprises: a sub-frame index number of a first MBSFN sub-frame, and the first MBSFN sub-frame is the last sub-frame for transmitting an MBMS service in at least one MBSFN sub-frame used by the eNB for sending the MBMS service to the UE in a scheduling period; and the eNB sending, in the other MBSFN sub-frames following the first MBSFN sub-frame in the scheduling period, unicast data to the UE, and sending, in each MBSFN sub-frame of the other MBSFN sub-frames, to the UE a CRS transmitting unicast data in an MBSFN sub-frame. The present invention is applied to the transmission process of unicast data.

Description

Method and device for transmitting unicast data Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and a device for transmitting unicast data.

Background technique

In order to improve the signal-to-noise ratio of the data signal of the user equipment (English: User Equipment, UE for short), thereby improving the transmission efficiency of the data signal, a multimedia is proposed in the Long Term Evolution (LTE) system. Broadcast Multicast Service (English: Multimedia Broadcast Multicast Service, abbreviation: MBMS) transmission method. In the MBMS transmission mode, multiple evolved base stations (English: Evolved Node B, eNB for short) are required to simultaneously transmit the same data block to one or more UEs by using the same radio resource.

In order to enable multiple eNBs to transmit the same data block by using the same radio resource, the multi-cell/multicast coordination entity (MCE) in the LTE system can configure all the eNBs. The relevant parameters of the MBMS transmission are performed, for example, the same MBMS Single Frequency Network (MBSFN) subframe for transmitting the MBMS service is allocated to the multiple eNBs.

Considering that the data volume of the MBMS service fluctuates greatly at different times, that is, the data volume of the MBMS service may be large for a period of time, and if the data packet of one MBMS service is not sent to the UE within the delay request thereof, The data packet will be discarded; therefore, in order to avoid the MBMS service data packet being lost due to transmission when the data volume of the MBMS service is large, the MCE can allocate more MBMS services for the MBMS service. The transmitted MBSFN subframe.

However, since the MBSFN subframe can only be used to transmit MBMS services or transmit data for the TM9/10 UE; therefore, if the MCE allocates a larger number of MBMS services. MBSFN subframes, when the amount of data of the MBMS service is small, except that some MBSFN subframes can be used to transmit the MBMS service or transmit data for the TM9/10 UE, the remaining MBSFN subframes are in an idle state, which causes Waste of wireless resources.

Summary of the invention

An embodiment of the present invention provides a method and a device for transmitting unicast data, which can use unicast data in an idle MBSFN subframe to improve the utilization of MBSFN subframes and avoid waste of radio resources.

A first aspect of the embodiments of the present invention provides a method for transmitting unicast data, including: an eNB sending MBMS scheduling information to a user equipment UE, where the MBMS scheduling information includes: a subframe index number of a first MBSFN subframe, first The MBSFN subframe is a subframe in which at least one MBSFN subframe used by the eNB to transmit the MBMS service to the UE in one scheduling period, and the last one used to transmit the MBMS service; the eNB in the scheduling period, after the first MBSFN subframe The MBSFN subframe transmits unicast data to the UE, and sends a cell-specific reference signal for performing unicast data transmission in the MBSFN subframe to each UE in each MBSFN subframe in other MBSFN subframes (English: Cell-specific Reference Signals) , abbreviated as: CRS), so that the UE acquires unicast data in the corresponding MBSFN subframe by using the CRS according to the MBMS scheduling information.

In the unicast data transmission method provided by the embodiment of the present invention, the eNB may send unicast data to the UE in other MBSFN subframes other than the at least one MBSFN subframe in the scheduling period, that is, the idle MBSFN subframe that does not currently carry the MBMS service. And transmitting CRS to the UE in the idle MBSFN subframes; thus, even the UE of the TM9/10 can receive the CRS in the idle MBSFN subframe according to the indication of the MBMS scheduling information, and adopt the CRS in the corresponding MBSFN subframe. The PDSCH obtains unicast data. That is, the unicast data can be transmitted to the non-TM9/10 UE by using the idle MBSFN subframe, so that the utilization of the MBSFN subframe can be improved and the waste of the radio resources can be avoided.

Optionally, in order to enable each UE to obtain unicast data sent by the eNB to the UE in the PDSCH of other MBSFN subframes after the first MBSFN subframe in the scheduling period, the eNB may adopt a cell wireless network of each UE respectively. Temporary logo The Cell Radio Network Temporary Identifier (C-RNTI) scrambles the unicast data sent to the UE on the PDSCH.

Specifically, before the eNB sends the unicast data to the UE by using the physical downlink shared channel, the PDSCH, in the scheduling period, the eNB may adopt the UE. The C-RNTI scrambles the unicast data to be transmitted on the PDSCH.

Correspondingly, the unicast data sent by the eNB to the UE is unicast data scrambled by the C-RNTI of the UE.

It is conceivable that when the eNB transmits the MBMS service in the first MBSFN subframe, the data corresponding to the MBMS service may not occupy all the physical resource blocks (English: Physical Resource Block, PRB) of the first MBSFN subframe. That is, the MBMS service is not carried on part of the PRB of the first MBSFN subframe.

In the first application scenario of the first MBSFN subframe, the eNB can use not only the other MBSFN subframes after the first MBSFN subframe in the scheduling period. The UE transmits the unicast data, and may also transmit the unicast data by using the idle PRB (ie, the PRB that does not carry the MBMS service) on the first MBSFN subframe.

Specifically, in the first application scenario, the MBMS scheduling information may further include: resource block location information of the first PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The method of the embodiment of the present invention may further include: the eNB sends the unicast data to the UE by using the PDSCH by using other PRBs except the first PRB in the first MBSFN subframe.

The unicast data can be transmitted on the idle MBSFN subframe that does not carry the MBMS service, and can also be in the semi-idle MBSFN subframe (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe) The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

It is conceivable that the eNB selects at least one second MBSFN sub-frame other than the first MBSFN sub-frame in the at least one MBSFN subframe. When the MBMS service is transmitted, the data corresponding to the MBMS service may not occupy all the PRBs of each second MBSFN subframe in the at least one second MBSFN subframe, that is, each second MBSFN in the at least one second MBSFN subframe. The MBMS service may not be carried on part of the PRB of the subframe.

In the second application scenario of the second MBSFN subframe, the eNB may also use the idle PRB on the second MBSFN subframe (that is, the PRB that does not carry the MBMS service). )" to transfer unicast data.

Specifically, in the second application scenario, the foregoing MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and each second PRB in the at least one second PRB Resource block location information. The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is at least one second MBSFN The MBMS service in the different second MBSFN subframes in the subframe corresponds to the PRB occupied in the second MBSFN subframe.

The method of the embodiment of the present invention may further include: the eNB sends the unicast data to the UE by using the PDSCH by using a PRB other than the second PRB in each second MBSFN subframe of the at least one second MBSFN subframe.

With this solution, unicast data can be transmitted not only on the idle MBSFN subframes that do not carry the MBMS service, but also in all the half idle MBSFN subframes (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe. The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

Optionally, in the first implementation manner of the embodiment of the present invention, the method for the eNB to send the MBMS scheduling information to the UE may be: the eNB sends the multicast to the UE in the first MBSFN subframe in the at least one MBSFN subframe. Channel (English: Multicast Channel, MCH for short) scheduling information (English: MCH Schedule Information, MSI for short); wherein the MSI includes MBMS scheduling information.

It is conceivable that, in the foregoing first implementation manner, the eNB may include all MBMS scheduling information in the MSI, and indicate to the UE.

In the embodiment of the present invention, all the foregoing MBMS scheduling information may include: a subframe index number of the first MBSFN subframe; or a subframe index number of the first MBSFN subframe and resource block location information of the first PRB; Or the subframe index number of the first MBSFN subframe, the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe, and the resource block location information of each second PRB in the at least one second PRB Or a subframe index number of the first MBSFN subframe, resource block location information of the first PRB, a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe, and at least one second PRB Resource block location information for each second PRB.

Optionally, in the second implementation manner of the embodiment of the present invention, the method for the eNB to send the subframe index number of the first MBSFN subframe to the UE may be: the first MBSFN of the eNB in the at least one MBSFN subframe. The subframe transmits an MSI to the UE; the MSI includes a subframe index number of the first MBSFN subframe.

The method for the eNB to send the resource block location information of the first PRB to the UE is specifically: the eNB passes the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH for short) of the first MBSFN subframe to the UE in the first MBSFN subframe. And sending Downlink Control Schedule Information (DCI), where the DCI includes resource block location information of the first PRB.

It is conceivable that, in the foregoing second implementation manner, the eNB may include the subframe index number of the first MBSFN subframe in the MSI, and indicate to the UE that the resource block location information of the first PRB is included in the DCI. Indicate to the UE.

Optionally, in a possible implementation manner, the method for the eNB to send the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe to the UE may be: the eNB is in the at least one MBSFN subframe. The first MBSFN subframe in which the MSI is sent to the UE; the MSI includes a subframe index number of each of the second MBSFN subframes in the at least one second MBSFN subframe.

The method for the eNB to send the resource block location information of each second PRB in the at least one second PRB to the UE is specifically: the eNB is in the second second MBSFN subframe in the at least one second MBSFN subframe, and the second The PDCCH of the MBSFN subframe transmits a DCI to the UE, where the DCI includes the second PRB corresponding to the second MBSFN subframe. Resource block location information.

Preferably, the eNB sends the DCI transmitted to the UE through the PDCCH of the second MBSFN subframe to the scrambled DCI in each second MBSFN subframe in the second MBSFN subframe.

Specifically, before the eNB sends the DCI to the UE by using the PDCCH of the second MBSFN subframe in the second MBSFN subframe, the method of the embodiment of the present invention may further include: the eNB multicasting The control channel (English: Multicast Control Channel, abbreviated as: MCCH) sends a radio network temporary identifier (English: Radio Network Temporary Identifier, RNTI for short) to the UE; the eNB scrambles the DCI by using the RNTI.

Further, since some UEs may not support receiving unicast data in the MBSFN subframe, the eNB needs to determine the capability of receiving unicast data in the MBSFN subframe before transmitting the MBMS scheduling information to the user equipment UE, and hopes to The MBSFN subframe receives the unicast data UE (denoted as a unicast UE), and then transmits the MBMS scheduling information, and then transmits the unicast data to the unicast UE by using the MBSFN subframe.

Specifically, before the eNB sends the MBMS scheduling information to the UE, the method of the embodiment of the present invention may further include: the eNB receiving the MBMS capability information sent by the UE, where the MBMS capability information is used to indicate that the UE has the capability of receiving the unicast data in the MBSFN subframe. And unicast data is received in the MBSFN subframe, and the eNB sends an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE detects unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. And receiving the detected unicast data.

Further, after the eNB receives the MBMS capability information sent by the UE, the method of the embodiment of the present invention may further include: the eNB sends an idle MBSFN subframe transmission request to the MCE, where the idle MBSFN subframe transmission request is used in the scheduling period. The MBSFN subframe (idle MBSFN subframe) except the at least one MBSFN subframe performs unicast data transmission; the eNB receives the idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB Other MBSFN subframes other than at least one MBSFN subframe in the scheduling period (idle) MBSFN subframe) transmits unicast data.

It is conceivable that the eNB may send an MBMS capability response to the UE after receiving the idle MBSFN subframe transmission response sent by the MCE.

With the present scheme, the eNB may acquire the capability of the UE to receive unicast data in the MBSFN subframe before transmitting the unicast data to the UE in the MBSFN subframe, and then send the unicast data only to the unicast UE in the MBSFN subframe. The accuracy of the eNB transmission data is improved, and the radio resource caused by the eNB not transmitting the unicast data in the MBSFN subframe or the UE receiving the unicast data in the MBSFN subframe may be avoided. The problem of wasting.

A second aspect of the embodiments of the present invention provides a method for transmitting unicast data, including: receiving, by a UE, MBMS scheduling information, where the MBMS scheduling information includes: a subframe index number of a first MBSFN subframe, and a first MBSFN The subframe is a subframe for transmitting the MBMS service in the at least one MBSFN subframe used by the eNB to send the MBMS service to the UE in one scheduling period; the UE is in the scheduling period, the first MBSFN according to the indication of the MBMS scheduling information. Each MBSFN subframe after the subframe receives the CRS, and uses CRS for channel estimation, and demodulates the unicast data from the Physical Downlink Shared Channel (PDSCH) of the MBSFN subframe.

In the unicast data transmission method provided by the embodiment of the present invention, the UE may receive the CRS in each MBSFN subframe after the first MBSFN subframe in the scheduling period according to the MBMS scheduling information received from the eNB, and use the CRS as the channel estimation. Demodulating unicast data from the PDSCH of the MBSFN subframe. That is, by using the scheme, even if the UE is a non-TM9/10 UE, the channel estimation can be performed by using the CRS, and the unicast data can be demodulated from the PDSCH of the MBSFN subframe, thereby improving the utilization of the MBSFN subframe and avoiding the radio resources. Waste.

Specifically, the UE receives the CRS in each MBSFN subframe after the first MBSFN subframe in the scheduling period according to the indication of the MBMS scheduling information, and uses the CRS for channel estimation, and demodulates the PDSCH from the MBSFN subframe. The method for broadcasting data may include: the UE according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information, Determining another MBSFN subframe after the first MBSFN subframe in the scheduling period; the UE receives the CRS in each MBSFN subframe in the other MBSFN subframe, and uses the CRS for channel estimation, and the PDSCH demodulation list from the MBSFN subframe Broadcast data.

It is conceivable that when the eNB transmits the MBMS service in the first MBSFN subframe, the data corresponding to the MBMS service may not occupy all the PRBs of the first MBSFN subframe, that is, the partial PRB of the first MBSFN subframe is not Carry the MBMS service.

In the first application scenario of the first MBSFN subframe, the eNB can use not only the other MBSFN subframes after the first MBSFN subframe in the scheduling period. The UE transmits the unicast data, and may also transmit the unicast data by using the idle PRB (ie, the PRB that does not carry the MBMS service) on the first MBSFN subframe.

Specifically, in the first application scenario, the MBMS scheduling information may further include: resource block location information of the first PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The method of the embodiment of the present invention may further include: the UE receiving, in the first MBSFN subframe, other PRBs except the first PRB, and receiving the unicast data sent by the eNB through the PDSCH.

The unicast data can be transmitted on the idle MBSFN subframe that does not carry the MBMS service, and can also be in the semi-idle MBSFN subframe (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe) The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

It is conceivable that when the eNB transmits the MBMS service in other MBSFN subframes (ie, at least one second MBSFN subframe) other than the first MBSFN subframe in the at least one MBSFN subframe, the data corresponding to the MBMS service may not be All PRBs occupying each of the second MBSFN subframes of the at least one second MBSFN subframe, that is, part of the PRBs of the second MBSFN subframes in the at least one second MBSFN subframe may not carry the MBMS service.

In order to improve the utilization of the PRB on the second MBSFN subframe, the present invention In the second application scenario of the embodiment, the eNB may also use the idle PRB (ie, the PRB that does not carry the MBMS service) on the second MBSFN subframe to transmit the unicast data.

Specifically, in the second application scenario, the foregoing MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and each second PRB in the at least one second PRB Resource block location information. The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is at least one second MBSFN The MBMS service in the different second MBSFN subframes in the subframe corresponds to the PRB occupied in the second MBSFN subframe.

The method of the embodiment of the present invention may further include: receiving, by the UE, unicast data sent by the eNB through the PDS CH, in addition to the other PRBs corresponding to the second PRB, in each second MBSFN subframe of the at least one second MBSFN subframe. .

With this solution, unicast data can be transmitted not only on the idle MBSFN subframes that do not carry the MBMS service, but also in all the half idle MBSFN subframes (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe. The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

Optionally, in the first implementation manner of the embodiment of the present invention, the method for the UE to receive the MBMS scheduling information sent by the eNB may be: the UE sends the first MBSFN subframe in the at least one MBSFN subframe, and the receiving eNB sends the MSI; wherein the MSI includes MBMS scheduling information.

Optionally, in the second implementation manner of the embodiment of the present invention, the method for the UE to receive the subframe index number of the first MBSFN subframe sent by the eNB may be specifically: the first one of the at least one MBSFN subframe of the UE The MBSFN subframe receives the MSI transmitted by the eNB, where the MSI includes the subframe index number of the first MBSFN subframe.

Optionally, in a possible implementation, the method for the UE to receive the resource block location information of the first PRB sent by the eNB is specifically: the UE is in the first MBSFN subframe, and the receiving eNB sends the PDCCH through the first MBSFN subframe. The DCI; wherein the DCI includes resource block location information of the first PRB.

The method for receiving, by the UE, the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe that is sent by the eNB is specifically: the UE is in the first MBSFN subframe in the at least one MBSFN subframe, and receives the eNB. The transmitted MSI; the MSI includes a subframe index number of each of the second MBSFN subframes in the at least one second MBSFN subframe.

The method for the UE to receive the resource block location information of each second PRB in the at least one second PRB sent by the eNB is specifically: the UE is in each second MBSFN subframe in the second MBSFN subframe, and the receiving eNB passes the second MBSFN. The DCI sent by the PDCCH of the subframe; wherein the DCI includes resource block location information of the second PRB corresponding to the MBSFN subframe.

Preferably, the UE receives the DCI that the eNB sends the DCI that can be scrambled by the eNB. Specifically, before the UE receives the DCI sent by the PDCCH of the second MBSFN subframe in the second MBSFN subframe of the UE, the method of the embodiment of the present invention may further include: the UE receiving the eNB RNTI transmitted through the MCCH.

Correspondingly, the UE receives the DCI sent by the eNB in the PDCCH of the MBSFN subframe in each MBSFN subframe of the other MBSFN subframe, including: the UE uses the RNTI to obtain the DCI from the PDCCH of the MBSFN subframe.

Further, since some UEs may not support receiving unicast data in the MBSFN subframe, the eNB needs to determine the capability of receiving unicast data in the MBSFN subframe before transmitting the MBMS scheduling information to the user equipment UE, and hopes to The MBSFN subframe receives the unicast data UE (denoted as a unicast UE), and then transmits the MBMS scheduling information to the unicast UE.

Further, the part of the UE may not support receiving the unicast data in the MBSFN subframe. Before receiving the MBMS scheduling information of the MBMS, the UE may report the MBMS capability information of the UE to the eNB.

Specifically, before the UE receives the MBMS scheduling information sent by the eNB, the method of the embodiment of the present invention may further include: the UE sends the MBMS capability information to the eNB, where the MBMS capability information is used to indicate that the UE has the unicast data received in the MBSFN subframe. Capability, and it is desirable to receive unicast data in an MBSFN subframe; the UE receives an MBMS capability response sent by the eNB, and the MBMS capability response is used to indicate that the UE includes at least one in the scheduling period. Other MBSFN subframes outside the MBSFN subframe receive unicast data.

A third aspect of the embodiments of the present invention provides an eNB, including: an obtaining unit and a sending unit.

And an acquiring unit, configured to acquire MBMS scheduling information, where the MBMS scheduling information includes: a subframe index number of the first MBMS single frequency network MBSFN subframe, where the first MBSFN subframe is used by the eNB to send the MBMS service to the UE in one scheduling period. The last one of the at least one MBSFN subframe used to transmit the MBMS service.

a sending unit, configured to send MBMS scheduling information to the UE; in the scheduling period, other MBSFN subframes after the first MBSFN subframe, send unicast data to the UE, and each MBSFN subframe in other MBSFN subframes The UE sends the CRS for the unicast data transmission in the MBSFN subframe, so that the UE acquires the unicast data in the corresponding MBSFN subframe by using the CRS according to the MBMS scheduling information.

Optionally, the foregoing eNB may further include: a scrambling unit.

a scrambling unit, configured to perform, in the foregoing sending unit, another MBSFN subframe after the first MBSFN subframe in the scheduling period, before transmitting the unicast data to the UE by using the PDSCH, and using the C-RNTI of the UE to scramble the PDSCH to be sent. Unicast data.

Optionally, the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The sending unit is further configured to send the unicast data to the UE by using the PDSCH by using other PRBs except the first PRB in the first MBSFN subframe.

Optionally, the MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and resource block location information of each second PRB in the at least one second PRB.

The at least one second MBSFN subframe is another MBSFN subframe other than the first MBSFN subframe in the at least one MBSFN subframe; each second PRB in the at least one second PRB is respectively in the at least one second MBSFN subframe The MBMS service in the different second MBSFN subframes is in the PRB occupied by the second MBSFN subframe.

a sending unit, configured to use each of the at least one second MBSFN subframe In the two MBSFN subframes, other PRBs than the second PRB, the unicast data is sent to the UE through the PDSCH.

Optionally, the method for the sending unit to send the MBMS scheduling information to the UE is specifically: the sending unit sends the multicast channel MCH scheduling information MSI to the UE in the first MBSFN subframe in the at least one MBSFN subframe, where the MSI includes MBMS scheduling information.

Optionally, the method for the sending unit to send the subframe index number of the first MBSFN subframe to the UE is specifically: the sending unit sends the MSI to the UE in the first MBSFN subframe in the at least one MBSFN subframe; the MSI includes the The subframe index number of an MBSFN subframe.

Optionally, the method for the sending unit to send the resource block location information of the first PRB to the UE is specifically: the sending unit sends the DCI to the UE by using the physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe, where The DCI includes resource block location information of the first PRB.

Optionally, the method for the sending unit to send the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe to the UE is specifically: the first MBSFN subframe of the sending unit in the at least one MBSFN subframe And transmitting an MSI to the UE; the MSI includes a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe.

The method for the sending unit to send the resource block location information of each second PRB in the at least one second PRB to the UE is specifically: the sending unit is in the second second MBSFN subframe in the at least one second MBSFN subframe, by using the second The PDCCH of the MBSFN subframe transmits DCI to the UE, where the DCI includes resource block location information of the second PRB corresponding to the second MBSFN subframe.

Optionally, the sending unit is further configured to: before performing the second DCSFN subframe in the second MBSFN subframe, send the wireless network temporary to the UE by using the MCCH of the second MBSFN subframe before sending the DCI to the UE. Identifies the RNTI.

The scrambling unit is further configured to scramble the DCI by using the RNTI.

Optionally, the foregoing eNB may further include: a receiving unit.

a receiving unit, configured to send, before the sending unit sends the MBMS scheduling information to the UE, Receiving MBMS capability information sent by the UE, the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in the MBSFN subframe, and is expected to receive unicast data in the MBSFN subframe.

The sending unit is further configured to send an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE receives the unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

Optionally, in the embodiment of the present invention, the sending unit is further configured to send an idle MBSFN subframe transmission request to the multi-cell/multicast coordination entity MCE, where the idle MBSFN subframe transmission request is used to request at least one of the scheduling periods. Other MBSFN subframes outside the MBSFN subframe are used for unicast data transmission.

The receiving unit is further configured to receive an idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB to perform unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. transmission.

A fourth aspect of the embodiments of the present invention further provides a UE, including: a receiving unit and a demodulating unit.

a receiving unit, configured to receive MBMS scheduling information of the multimedia broadcast multicast service sent by the eNB, where the MBMS scheduling information includes: a subframe index number of the first MBMS single frequency network MBSFN subframe, where the first MBSFN subframe is an eNB in a scheduling period Transmitting, by the UE, a subframe for transmitting an MBMS service in at least one MBSFN subframe used by the MBMS service; and receiving, in the scheduling period, each MBSFN subframe after the first MBSFN subframe according to the indication of the MBMS scheduling information Cell-specific reference signal CRS.

And a demodulation unit, configured to perform channel estimation by using a CRS received by the receiving unit, and demodulate the unicast data from the PDSCH of the MBSFN subframe.

Optionally, the demodulation unit is configured to determine, according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information, other MBSFN subframes after the first MBSFN subframe in the scheduling period.

The receiving unit is specifically configured to receive the CRS in each MBSFN subframe in the other MBSFN subframe.

The demodulation unit is specifically configured to perform channel estimation by using the CRS, and demodulate the unicast data from the PDSCH of the MBSFN subframe.

Optionally, the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The receiving unit is further configured to receive, in the first MBSFN subframe, other unicast data except the first PRB, and receive unicast data sent by the eNB through the PDSCH.

Optionally, the MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and resource block location information of each second PRB in the at least one second PRB.

The at least one second MBSFN subframe is another MBSFN subframe other than the first MBSFN subframe in the at least one MBSFN subframe; each second PRB in the at least one second PRB is respectively in the at least one second MBSFN subframe The MBMS service in the different second MBSFN subframes is in the PRB occupied by the second MBSFN subframe.

The receiving unit is further configured to receive, in each second MBSFN subframe of the at least one second MBSFN subframe, a unicast data that is sent by the eNB through the PDSCH, except for other PRBs corresponding to the second PRB.

Optionally, the method for the receiving unit to receive the MBMS scheduling information sent by the eNB is specifically: the receiving unit is in the first MBSFN subframe in the at least one MBSFN subframe, and receives the multicast channel MCH scheduling information MSI sent by the eNB; where, the MSI Includes MBMS scheduling information.

Optionally, the method for the receiving unit to receive the subframe index of the first MBSFN subframe sent by the eNB is specifically: the receiving unit receives the MSI sent by the eNB in the first MBSFN subframe of the at least one MBSFN subframe, where The subframe index number of the first MBSFN subframe is included in the MSI.

Optionally, the method for receiving, by the receiving unit, the resource block location information of the first PRB sent by the eNB is specifically: receiving, by the receiving unit, the downlink control sent by the eNB by using the physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe Information DCI; wherein the DCI includes resource block location information of the first PRB.

Optionally, the method for receiving, by the receiving unit, the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe that is sent by the eNB is specifically: the first MBSFN of the receiving unit in the at least one MBSFN subframe And receiving, by the eNB, an MSI sent by the eNB; the MSI includes a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe.

The method for the receiving unit to receive the resource block location information of each second PRB in the at least one second PRB sent by the eNB is specifically: the receiving unit is in each second MBSFN subframe in the second MBSFN subframe, and the receiving eNB passes the first The DCI of the PDCCH transmitted by the PDCCH of the two MBSFN subframes, where the DCI includes the resource block location information of the second PRB corresponding to the MBSFN subframe.

Optionally, the receiving unit is further configured to: before each eNB sends the DCI sent by the PDCCH of the second MBSFN subframe, the receiving eNB passes the multicast control channel MCCH in each second MBSFN subframe in the second MBSFN subframe. The transmitted radio network temporary identifier RNTI; the RNTI is used to obtain the DCI from the PDCCH of the MBSFN subframe.

Optionally, the foregoing UE may further include: a sending unit.

And a sending unit, configured to send the MBMS capability information to the eNB before the receiving unit receives the MBMS scheduling information sent by the eNB, where the MBMS capability information is used to indicate that the UE has the capability of receiving the unicast data in the MBSFN subframe, and is required to receive in the MBSFN subframe. Unicast data.

The receiving unit is further configured to receive an MBMS capability response sent by the eNB, where the MBMS capability response is used to indicate that the UE receives the unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

A fifth aspect of the embodiments of the present invention further provides an eNB, including:

One or more processors, memories, bus systems, transceivers, and one or more applications, one or more processors, memories, and transceivers are coupled by a bus system.

One or more applications are stored in a memory, and one or more applications include instructions that, when the processor of the eNB executes the instructions, perform a method of transmitting unicast data as in the first aspect and its various possible implementations .

A sixth aspect of the embodiments of the present invention further provides a computer readable storage medium having one or more programs stored therein, the one or more programs including instructions, when the processor of the evolved base station eNB When the instructions are executed, the eNB performs the transmission method of the unicast data of the first aspect and its various possible implementations.

It should be noted that the detailed description of the eNB in the foregoing third and fifth aspects and the corresponding technical effect analysis can be referred to the detailed description in the foregoing first aspect and various possible implementation manners, and details are not described herein again. .

A seventh aspect of the embodiments of the present invention provides a user equipment UE, including:

One or more processors, memories, bus systems, transceivers, and one or more applications, one or more processors, memories, and transceivers are coupled by a bus system.

One or more applications are stored in the memory, and one or more applications include instructions that, when the processor of the UE executes the instructions, perform a method of transmitting unicast data as in the second aspect and its various possible implementations .

According to an eighth aspect of the embodiments of the present invention, a computer readable storage medium is provided, where one or more programs are stored, and one or more programs include instructions when a processor of the user equipment UE executes an instruction. The UE performs a method of transmitting unicast data as in the second aspect and its various possible implementations.

It should be noted that the detailed description of the UE in the foregoing fourth and seventh aspects, and the corresponding technical effect analysis, refer to the detailed description in the foregoing second aspect and various possible implementation manners, and details are not described herein again. .

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a schematic structural diagram of an MBMS network according to an embodiment of the present disclosure;

2 is a schematic structural diagram of a network of an MBSFN according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a distribution of MBSFN subframes in a scheduling period according to an embodiment of the present disclosure;

FIG. 4 is a flowchart of a method for transmitting unicast data according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a distribution of an MBSFN subframe in another scheduling period according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of another method for transmitting unicast data according to an embodiment of the present invention;

FIG. 7 is a flowchart of another method for transmitting unicast data according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of distribution of MBSFN subframes in another scheduling period according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of distribution of MBSFN subframes in another scheduling period according to an embodiment of the present disclosure;

FIG. 10 is a flowchart of another method for transmitting unicast data according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of distribution of an MBSFN subframe in another scheduling period according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of distribution of an MBSFN subframe in another scheduling period according to an embodiment of the present disclosure;

FIG. 13 is a flowchart of another method for transmitting unicast data according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of an eNB according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of another eNB according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of another eNB according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a UE according to an embodiment of the present disclosure;

FIG. 18 is a schematic structural diagram of another UE according to an embodiment of the present disclosure;

FIG. 19 is a schematic structural diagram of another UE according to an embodiment of the present invention.

detailed description

The terms "first" and "second" and the like in the description of the present invention and the drawings are used to distinguish different objects, and are not intended to describe a specific order of the objects. For example, the first PRB and the second PRB and the like are used to distinguish different PRBs, instead of describing the feature order of the PRBs.

In the description of the present invention, the meaning of "a plurality" means two or more unless otherwise indicated. For example, multiple processors refer to two or more processors.

Furthermore, the terms "comprises" and "comprising" and variations of the invention, as used in the description of the invention, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units not listed, or alternatively Other steps or units inherent to these processes, methods, products or devices are included.

In the following description, for purposes of illustration and description However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the invention.

The technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments.

The method for transmitting unicast data provided by the embodiment of the present invention can be applied to the MBMS network architecture shown in FIG. 1.

As shown in Figure 1, the MBMS network architecture adds a new network element to the existing mobile management entity (English: Mobility Management Entity, MME) and eNB of the original LTE network: Broadcast Multicast Service Center (English: Broadcast) Multicast Service Center (BM-SC), MCE and MBMS Gateway (English: MBMS GateWay, referred to as MBMS-GW).

Moreover, the MBMS network architecture applied in the embodiment of the present invention not only adds three network elements of the foregoing BM-SC, MCE, and MBMS-GW, but also provides a more independent MBMS. Broadcast/multicast mode, that is, MBMS single frequency network (English: Multimedia Broadcast multicast service Single Frequency Network, abbreviation: MBSFN).

Please refer to FIG. 2, which is a schematic diagram of an example of an MBSFN applied to an embodiment of the present invention. MBSFN refers to a base station of a cell belonging to the same MBMS service area that simultaneously transmits MBMS services in the same frequency band, and the UE can combine the received MBMS services at the receiving end to implement receive diversity. The synchronous transmission cell belonging to the same MBMS service area may be defined as an MBSFN synchronization area (English: MBSFN Synchronization Area). In an MBSFN synchronization area, a group of cells that perform the same MBMS service content are divided into the same MBSFN area (English: MBSFN Area). Among them, a cell may belong to only one MBSFN synchronization area, but may belong to multiple MBSFN Areas.

After receiving the MBMS service, the BM-SC shown in FIG. 1 can process the received MBMS service, add a timestamp, and the like, and send the processed MBMS service to the MBMS-GW; the MBMS-GW The MBMS service received by the MBMS-GW may be transmitted to all eNBs in the range of one or more MBSFN Areas through IP multicast; finally, the eNB may transmit the MBMS service received by the eNB to the UE through the wireless channel.

The MCE shown in FIG. 1 is mainly used for performing access control, radio parameter configuration such as modulation and coding, and when performing multi-cell MBMS transmission in MBSFN mode, allocating radio resources for all eNBs in the same MBSFN area. The MCE is a logical entity located in the MBMS network architecture. The MCE can be independently displayed in the network as shown in FIG. 1 or integrated in other network elements, for example, can be integrated in the MME.

For example, the MCE may allocate multiple MBSFN subframes for transmitting MBMS services to multiple eNBs. As shown in FIG. 3, the MCE may divide the MBSFN subframe into a plurality of scheduling periods in a time dimension, and each of the scheduling periods includes at least one MBSFN subframe.

In general, an MBSFN subframe can only be used to transmit MBMS services or transmit data for a TM9/10 UE. Therefore, except for some MBSFN subframes that can be used to transmit the MBMS service or transmit data for the TM9/10 UE, the remaining MBSFN When the subframes are in an idle state, the wireless resources are wasted. In the technical solution protected by the present application, the idle MBSFN subframe transmission may be used to transmit unicast data to the UE in any transmission mode, thereby improving the utilization of the MBSFN subframe and avoiding waste of radio resources.

The first MBSFN subframe in each scheduling period may be used to send an MSI, and the MSI may indicate an MBSFN subframe for transmitting data corresponding to each MBMS service in the current scheduling period, that is, each MBMS service in the current scheduling period. The corresponding data is transmitted in which MBSFN subframes.

Unicast refers to communication between a sender and a receiver over a network, rather than communication between one sender and multiple recipients (multicast). That is, in the embodiment of the present invention, communication between one eNB and one UE is performed through a network, and not communication between one eNB and multiple UEs through a network. The unicast data is the data that the one sender sends to the one receiver, that is, the downlink unicast data in the embodiment of the present invention is the data that the eNB sends to one UE.

MBSFN subframes can only be used to transmit MBMS services or to transmit data for TM9/10 UEs. The reason why MBSFN subframes cannot be used to transmit unicast services is that cell-specific reference signals are not transmitted in most MBSFN subframes (English: Cell-specific Reference) Signals, abbreviated as: CRS), and other UEs other than the TM9/10 UE cannot perform downlink channel estimation and data demodulation without CRS.

Specifically, the CRS is transmitted in all downlink subframes in the cell in which the non-MBSFN transmission is used; and when the partial subframe is used in the MBSFN transmission, only one subframe in the subframe (ie, the MBSFN subframe) used for the MBSFN transmission is used. The CRS is transmitted in the first or two Orthogonal Frequency Division Multiplexing (OFDM) symbols in the first slot in the first slot, and the CRS is not transmitted in other MBSFN subframes.

The CRS is used to carry the PDCCH, the physical broadcast channel (English: Physical Broadcast Channel, PBCH for short), and the Hybrid Automatic Repeat ReQuest (HARQ) indicator channel (English: Physical HARQ Indicator Channel). , referred to as: PHICH), and some for Channel status information about channels such as System Information Block (SIB) and PDSCH of paging information type. The UE may perform downlink channel estimation on the relevant channel according to the CRS, thereby decoding data on the relevant channel, and of course, the CRS may also be used for channel quality detection.

The method for transmitting unicast data in the MBSFN according to the embodiment of the present invention is described in detail below by using specific embodiments and related drawings:

Embodiment 1

The embodiment of the invention provides a method for transmitting unicast data. As shown in FIG. 4, the method for transmitting the unicast data includes:

S401. The eNB sends the MBMS scheduling information to the UE, where the MBMS scheduling information includes: a subframe index number of the first MBSFN subframe, where the first MBSFN subframe is at least one MBSFN subframe used by the eNB to send the MBMS service to the UE in one scheduling period. The last and last subframe used to transmit MBMS services.

The eNB may send the MBMS service to the UE through a Multicast Channel (MCH) in at least one MBSFN subframe in one scheduling period. Further, at least one MBSFN subframe used by the eNB to transmit the MBMS service to the UE is an MBSFN subframe sequentially arranged in the scheduling cycle.

Exemplarily, the scheduling period 1 shown in FIG. 5 includes four MBSFN subframes, which are subframe 2, subframe 3, subframe 7, and subframe 8, respectively, and these four subframes can be used for transmitting MBMS services. The eNB may use only part of the MBSFN subframes in the scheduling period 1 to transmit the MBMS service, because the data volume of the MBMS service fluctuates greatly at different times.

For example, suppose that the scheduling period 1 currently has two MBMS services to be transmitted, MBMS service 1 and MBMS service 2, and the eNB starts to transmit the MBMS service 1 in the subframe 2 in the scheduling period 1 as shown in FIG. 5, in the subframe 3 When the data of the MBMS service 1 is transmitted, the eNB starts transmitting the MBMS service 2 in the subframe 7 in the scheduling period 1 shown in FIG. 5, and ends the transmission of the data of the MBMS service 2 in the subframe 7. At this time, the at least one MBSFN subframe is the subframe 2, the subframe 3, and the subframe 7 in the scheduling period 1 as shown in FIG. 5. At least one used by the foregoing eNB to send an MBMS service to the UE in one scheduling period The last MBSFN subframe used for transmitting the MBMS service in the MBSFN subframe is the subframe 7, that is, the first MBSFN subframe is the subframe 7 in the scheduling period 1 as shown in FIG.

In the embodiment of the present invention, the eNB may send the MSI to the UE in the first MBSFN subframe of the at least one MBSFN subframe, where the MSI includes the subframe index number of the first MBSFN subframe. For example, the eNB may transmit the MSI including the subframe index number of the subframe 7 to the UE in the subframe 2 (the first MBSFN subframe of the scheduling period 1) in the scheduling period 1 as shown in FIG. 5.

S402. The UE receives MBMS scheduling information sent by the eNB.

S403. The eNB sends unicast data to the UE through the PDSCH in the other MBSFN subframes in the scheduling period and after the first MBSFN subframe, and sends the MBSFN subframe to the UE in each MBSFN subframe in the foregoing other MBSFN subframes. CRS for unicast data transmission.

Based on the above example, the eNB may send unicast data to the UE through the PDSCH in the subframe 8 in the scheduling period 1 as shown in FIG. 5, and send the unicast in the MBSFN subframe 8 to the UE in the MBSFN subframe 8 CRS for data transmission. That is, the subframe 8 in the scheduling period 1 shown in FIG. 5 is another MBSFN subframe after the first MBSFN subframe (subframe 7) in the scheduling period.

S404. The UE receives the CRS in each MBSFN subframe in the other MBSFN subframes after the first MBSFN subframe in the scheduling period according to the indication of the MBMS scheduling information, and uses the CRS for channel estimation, in the corresponding MBSFN subframe. The PDSCH obtains unicast data.

Exemplarily, the UE may demodulate the PDCCH of the MBSFN subframe according to the CRS received from each MBSFN subframe in the foregoing MBSFN subframe, obtain the DCI transmitted in the PDCCH of the MBSFN subframe, and then obtain the obtained The DCI demodulates unicast data from the PDSCH of the MBSFN subframe.

In the unicast data transmission method provided by the embodiment of the present invention, the eNB may send unicast data to the UE in other MBSFN subframes other than the at least one MBSFN subframe in the scheduling period, that is, the idle MBSFN subframe that does not currently carry the MBMS service. And transmitting CRS to the UE in these idle MBSFN subframes; thus, the UE can be based on MBMS The indication of the scheduling information receives the CRS in the idle MBSFN subframe, and receives and decodes the unicast data in the PDSCH of the corresponding MBSFN subframe by using the CRS. That is, the unicast data can be transmitted to the UE in any transmission mode by using the idle MBSFN subframe, so that the utilization of the MBSFN subframe can be improved, and the waste of the radio resources can be avoided.

Preferably, in order to enable each UE to obtain unicast data sent by the eNB to the UE in the PDSCH of other MBSFN subframes after the first MBSFN subframe in the scheduling period, the eNB may adopt the cell C-RNTI of each UE respectively. The unicast data sent to the UE on the PDSCH is scrambled.

Specifically, as shown in FIG. 6, before the foregoing eNB sends unicast data (ie, S403) to the UE in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period, the method in the embodiment of the present invention may further include S403. ':

S403. The eNB uses the C-RNTI of the UE to scramble the unicast data to be sent on the PDSCH.

Correspondingly, the unicast data sent by the eNB to the UE in S403 is unicast data scrambled by the C-RNTI of the UE.

Exemplarily, as shown in FIG. 7, S404 shown in FIG. 6 can be replaced by:

S404. The UE determines, according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information, other MBSFN subframes after the first MBSFN subframe in the scheduling period.

S404b: The UE receives the CRS in each MBSFN subframe of the other MBSFN subframes, and uses the CRS for channel estimation, and demodulates the unicast data from the PDSCH of the MBSFN subframe.

The UE does not transmit the CRS in the majority of the MBSFN subframes in the prior art, and the UEs other than the UEs of the TM9/10 cannot perform the estimation and demodulation of the downlink channel without the CRS. In the unicast data transmission method, the eNB may send the CRS in each MBSFN subframe in the other MBSFN subframes after the first MBSFN subframe, and in particular, send the CRS in the PDSCH region, so that the other UEs may also perform the downlink. Estimation and demodulation of the channel, thereby obtaining DCI from the PDCCH, and thereby obtaining unicast data from the PDSCH.

It is conceivable that the eNB transmits the MBMS service in the first MBSFN subframe. The data corresponding to the MBMS service may not occupy all the PRBs of the first MBSFN subframe, that is, the part of the PRB of the first MBSFN subframe does not carry the MBMS service. For example, the MBMS service is carried on the part of the PRB of the subframe 7 in the scheduling period 1 shown in FIG. 5, and the MBMS service is not carried on the remaining part of the PRB.

In order to improve the utilization of the PRB on the first MBSFN subframe, the unicast data transmission method provided by the embodiment of the present invention may also use the idle PRB in the first MBSFN subframe (that is, the PRB that does not carry the MBMS service). ) to transfer unicast data. Referring to FIG. 5, as shown in FIG. 8 or FIG. 9, the eNB may use the PRB of the subframe 7 in the scheduling period 1 that does not carry the MBMS service, and send the unicast data to the UE through the PDSCH.

In this way, the eNB needs to indicate to the UE the resource block location information of the PRB that has been used to carry the MBMS service in the first MBSFN subframe, so that the UE can determine the resource block location information of the PRB that has carried the MBMS service. The resource block location of the PRB carrying the MBMS service, so that the unicast data can be received on the PRB that does not carry the MBMS service.

Specifically, the foregoing MBMS scheduling information may further include: resource block location information of the first PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

Exemplarily, in an implementation manner of the embodiment of the present invention, the foregoing MSI further includes resource block location information of the first PRB, that is, the eNB may include the resource block location information of the first PRB in the MSI, and send Give the UE. For example, the MSI transmitted on the subframe 2 (the first MBSFN subframe of the scheduling period 1) in the scheduling period 1 shown in FIG. 8 includes the location information of the PRB occupied by the MBMS service in the subframe 7 (ie, the first Resource block location information of a PRB).

In this implementation, the method for the eNB to send the subframe index number of the first MBSFN subframe in the MBMS to the UE in the S401 may be: the eNB in the first MBSFN subframe in the at least one MBSFN subframe, to the UE Transmitting an MSI; the MSI includes a subframe index number of the first MBSFN subframe. Correspondingly, the method for receiving, by the UE in S402, the subframe index number of the first MBSFN subframe in the MBMS scheduling information sent by the eNB Specifically, the UE may receive, in the first MBSFN subframe of the at least one MBSFN subframe, an MSI that is sent by the eNB and includes a subframe index number of the first MBSFN subframe.

In another implementation manner of the embodiment of the present invention, the eNB may send the DCI to the UE by using the PDCCH of the first MBSFN subframe in the first MBSFN subframe, where the DCI includes the resource block location information of the first PRB. . For example, the resource block location information of the first PRB may be included in the DCI transmitted in the PDCCH channel of the subframe 7 (the first MBSFN subframe) in the scheduling period 1 as shown in FIG. 9.

In this implementation, the method for the eNB to send the subframe index of the first MBSFN subframe in the MBMS to the UE in the S401 may be: the eNB sends the PDCCH of the first MBSFN subframe to the UE in the first MBSFN subframe. Sending a DCI; where the DCI includes resource block location information of the first PRB. Correspondingly, the method for the UE to receive the subframe index of the first MBSFN subframe in the MBMS scheduling information sent by the eNB in the S402 may be: the UE is in the first MBSFN subframe, and the receiving eNB sends the PDCCH through the first MBSFN subframe. The DCI; wherein the DCI includes resource block location information of the first PRB.

Correspondingly, as shown in FIG. 10, the method for transmitting unicast data provided by the embodiment of the present invention may further include S405 and S406:

S405. The eNB uses the other PRBs except the first PRB in the first MBSFN subframe to send unicast data to the UE through the PDSCH.

The eNB uses the other PRBs in the first MBSFN subframe except the first PRB, and sends the unicast data to the UE through the PDSCH, and the other MBSFN subframes in the S403 in the SMB in the first MBSFN subframe, and the PDSCH The method for sending the unicast data by the UE is similar, and details are not described herein again.

S406. The UE receives other unicast data except the first PRB in the first MBSFN subframe, and receives unicast data sent by the eNB through the PDSCH.

The method for receiving the unicast data sent by the eNB through the PDSCH in the first MBSFN subframe except the first PRB, and the UE in the other MBSFN subframe after the first MBSFN subframe in the scheduling period. Each MBSFN subframe receives a CRS and is obtained by using a CRS in a PDSCH of a corresponding MBSFN subframe. The method for unicasting data is similar, and details are not described herein again.

The unicast data can be transmitted on the idle MBSFN subframe that does not carry the MBMS service, and can also be in the semi-idle MBSFN subframe (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe) The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

It is conceivable that when the eNB transmits the MBMS service in other MBSFN subframes (ie, at least one second MBSFN subframe) other than the first MBSFN subframe in the at least one MBSFN subframe, the data corresponding to the MBMS service may not be All PRBs occupying each of the second MBSFN subframes of the at least one second MBSFN subframe, that is, part of the PRBs of the second MBSFN subframes in the at least one second MBSFN subframe may not carry the MBMS service. For example, the MBMS service is carried on the subframe 2 of the scheduling period 1 and the partial PRB of the subframe 3 as shown in FIG. 5, and the remaining part of the PRB does not carry the MBMS service.

In the unicast data transmission method provided by the embodiment of the present invention, the at least one second MBSFN subframe may also be used in the method for transmitting the unicast data in the second MBSFN subframe in the foregoing at least one second MBSFN subframe. The idle PRB (ie, the PRB that does not carry the MBMS service) on each of the second MBSFN subframes transmits unicast data. As shown in FIG. 11 or FIG. 12, the eNB may also use the subframe in the scheduling period 1 in addition to the unicast data sent to the UE by the PRB that does not carry the MBMS service in the subframe 7 in the scheduling period 1. 2 and a part of the subframe 3 does not carry the PRB of the MBMS service, and transmits the unicast data to the UE through the PDSCH.

In this way, the eNB needs to indicate to the UE resource block location information of the PRB that has been used to carry the MBMS service in each second MBSFN subframe of the at least one second MBSFN subframe, so that the UE can carry the MBMS service according to the UE. The resource block location information of the PRB determines the resource block location of the PRB that does not carry the MBMS service, so that the unicast data can be received on the PRB that does not carry the MBMS service.

Specifically, the foregoing MBMS scheduling information may further include: a subframe index number and at least one second of each second MBSFN subframe in the at least one second MBSFN subframe Resource block location information for each second PRB in the PRB.

The at least one second MBSFN subframe is another MBSFN subframe of the at least one MBSFN subframe except the first MBSFN subframe; and each of the at least one second PRB is the MBMS service at least A PRB occupied by a second MBSFN subframe in a second MBSFN subframe. For example, at least one second MBSFN subframe may be subframe 2 and subframe 3 as shown in FIG. 5, assuming that the first PRB and the second PRB of the subframe 2 carry the MBMS service, and the first to the subframe 3 The third PRB carries the MBMS service, and the second PRB may be: the first PRB and the second PRB of the subframe 2, and the first to third PRBs of the subframe 3.

Exemplarily, in an implementation manner of the embodiment of the present invention, the MSI further includes a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and each of the at least one second PRB The resource block location information of the second PRB, that is, the eNB may use the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and the resource block of each second PRB in the at least one second PRB The location information is included in the MSI and sent to the UE.

For example, the MSI transmitted on the subframe 2 (the first MBSFN subframe of the scheduling period 1) in the scheduling period 1 shown in FIG. 11 may include not only the location information of the PRB occupied by the MBMS service in the subframe 7 ( That is, the resource block location information of the first PRB may further include the location information of the PRB occupied by the MBMS service in the subframe 2 and the subframe 3 (ie, the resource block location information of each second PRB in the at least one second PRB).

In this implementation, the eNB sends, in the S401, the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe in the MBMS and the resources of each second PRB in the at least one second PRB. The method for the block location information may be: the eNB sends the MSI to the UE in the first MBSFN subframe in the at least one MBSFN subframe; the MSI includes the second MBSFN subframe in each of the at least one second MBSFN subframe. a subframe index number and resource block location information of each second PRB in the at least one second PRB. Correspondingly, the UE receives the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe in the MBMS scheduling information sent by the eNB, and the resource block of each second PRB in the at least one second PRB. Location information The method may be specifically: the UE is in a first MBSFN subframe of the at least one MBSFN subframe, and receives, by the eNB, a subframe index number that includes each second MBSFN subframe in the at least one second MBSFN subframe, and at least one The MSI of the resource block location information of each second PRB in the two PRBs.

In another implementation manner of the embodiment of the present invention, the foregoing MSI further includes a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe, but the MSI does not include at least one Resource block location information of each second PRB in the second PRB. In this implementation, the method for the eNB to send the resource block location information of each second PRB in the at least one second PRB included in the MBMS to the UE in the S401 may be: the eNB is in the at least one second MBSFN subframe. Each of the second MBSFN subframes transmits DCI to the UE by using the PDCCH of the second MBSFN subframe, where the DCI includes resource block location information of the second PRB corresponding to the MBSFN subframe. For example, the DCI transmitted in the PDCCH channel of the subframe 2 (the second MBSFN subframe) in the scheduling period 1 shown in FIG. 12 may include the resource block location information of the second PRB corresponding to the subframe 2, and the scheduling period 1 The DCI transmitted in the PDCCH channel of the subframe 3 (the second MBSFN subframe) may include the resource block location information of the second PRB corresponding to the subframe 3.

As shown in FIG. 13, the method for transmitting unicast data provided by the embodiment of the present invention may further include S407 and S408:

S407. The eNB sends unicast data to the UE through the PDSCH by using a PRB other than the second PRB in each second MBSFN subframe of the at least one second MBSFN subframe.

The eNB uses the PRB of the second MBSFN subframe in each of the at least one second MBSFN subframe, except for the PRB other than the second PRB, and sends the unicast data to the UE through the PDSCH. The method for transmitting the unicast data to the UE through the PDSCH is similar to the other MBSFN subframes after the MBSFN subframe, and is not described herein again in the embodiment of the present invention.

Exemplarily, it is assumed that in the scheduling period 1 shown in FIG. 11 or 12, the first PRB and the second PRB of the subframe 2 carry the MBMS service, and the first of the subframe 3 If the MBMS service is carried on the third PRB, the eNB may use the PRB other than the first PRB and the second PRB in the subframe 2 to send unicast data to the UE through the PDSCH, and the eNB may use the subframe 3 Other PRBs except the first to third PRBs transmit unicast data to the UE through the PDSCH.

S408. The UE receives, in each second MBSFN subframe of the at least one second MBSFN subframe, a unicast data sent by the eNB through the PDSCH, except for other PRBs corresponding to the second PRB.

The UE receives the unicast data sent by the eNB through the PDSCH in the second PRSFN subframe of the at least one second MBSFN subframe, and the UE in the S404 is scheduled in the S404. The method of receiving the CRS in each MBSFN subframe of the other MBSFN subframes after the first MBSFN subframe, and using the CRS to obtain the unicast data in the PDSCH of the corresponding MBSFN subframe is similar to that of the embodiment of the present invention.

With this solution, unicast data can be transmitted not only on the idle MBSFN subframes that do not carry the MBMS service, but also in all the half idle MBSFN subframes (that is, the partial PRB carries the MBMS service, but the remaining PRB does not carry the MBMS service MBSFN subframe. The unicast data is transmitted on the PRB that does not carry the MBMS service. It can be seen that, through the solution, the utilization rate of the MBSFN subframe can be further improved.

Preferably, the eNB sends the DCI transmitted to the UE through the PDCCH of the second MBSFN subframe to the scrambled DCI in each second MBSFN subframe in the second MBSFN subframe.

Specifically, before the eNB sends the DCI to the UE in the second MBSFN subframe in the second MBSFN subframe, the method in the embodiment of the present invention may further include:

S409. The eNB sends the RNTI to the UE by using the MCCH.

S410: The eNB uses the RNTI to scramble DCI, where the DCI includes resource block location information of the second PRB corresponding to the second MBSFN subframe.

It is conceivable that the eNB transmits the foregoing RNTI to a plurality of UEs capable of receiving unicast data in an MBSFN subframe through the MCCH, and all of the RNTIs can be received in the MBSFN subframe. The UE that broadcasts the data may use the RNTI to demodulate the PDCCH, and obtain the DCI of the resource block location information of the second PRB corresponding to the second MBSFN subframe.

It should be noted that the RNTI may be a fixed identifier set in advance by a protocol. The RNTI set by the pre-protocol is well-known by the eNB and the UE, and the eNB may use the RNTI set by the pre-protocol to scramble DCI, and the UE may perform descrambling processing on the scrambled DCI by using the same RNTI.

It is conceivable that in the embodiment of the present invention, if the eNB scrambles the DCI by using the RNTI set by the pre-protocol, the RNTI is not required to be sent to the UE through the MCCH. That is, S409 is optional. When the eNB scrambles the DCI by using the RNTI set by the pre-protocol, S409 may not be performed.

Further, since some UEs may not support receiving unicast data in the MBSFN subframe, the eNB needs to determine the capability of receiving unicast data in the MBSFN subframe before transmitting the MBMS scheduling information to the user equipment UE, and hopes to The MBSFN subframe receives the unicast data UE (denoted as a unicast UE), and then transmits the MBMS scheduling information to the unicast UE. Specifically, before the S401, the method of the embodiment of the present invention may further include S501-S506:

S501. The UE sends MBMS capability information to the eNB, where the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in the MBSFN subframe, and it is desirable to receive the unicast data in the MBSFN subframe.

It is conceivable that the UE needs to use the MBMS scheduling information to receive the unicast data in the MBSFN subframe, and the acquisition of the MBMS scheduling information is based on the related information read by the UE from the system data block SIB 13 or the MCCH; therefore, the UE has The capability of receiving unicast data in an MBSFN subframe may specifically be a UE having the capability of reading the SIB 13, or receiving data on the MCCH, and desiring to receive unicast data in the MBSFN subframe.

S502. The eNB receives the MBMS capability information sent by the UE, where the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in the MBSFN subframe.

S503. The eNB sends an idle MBSFN subframe transmission request to the MCE, where the idle MBSFN subframe transmission request is used to indicate that the eNB requests to include at least one in the scheduling period. Other MBSFN subframes outside the MBSFN subframe are used for unicast data transmission.

S504: The eNB receives an idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB to perform unicast data transmission in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

It is to be noted that, in the embodiment of the present invention, S503 and S504 are optional. When the eNB indicates, by using the DCI, the resource block location information of the PRB occupied by the MBMS service in the MBSFN subframe, the S503 and the S504 may not be performed. The eNB does not need to send an idle MBSFN subframe transmission request to the MCE.

S505. The eNB sends an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE detects the received unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

S506. The UE receives an MBMS capability response sent by the eNB.

With the present scheme, the eNB may acquire the capability of the UE to receive unicast data in the MBSFN subframe before transmitting the unicast data to the UE in the MBSFN subframe, and then send the unicast data only to the unicast UE in the MBSFN subframe. The accuracy of the eNB transmission data is improved, and the radio resource caused by the eNB not transmitting the unicast data in the MBSFN subframe or the UE receiving the unicast data in the MBSFN subframe may be avoided. The problem of wasting.

In the unicast data transmission method provided by the embodiment of the present invention, the eNB may send unicast data to the UE in other MBSFN subframes other than the at least one MBSFN subframe in the scheduling period, that is, the idle MBSFN subframe that does not currently carry the MBMS service. And transmitting CRS to the UE in the idle MBSFN subframes; in this manner, the UE may receive the CRS in the idle MBSFN subframe according to the indication of the MBMS scheduling information, and obtain the unicast data in the PDSCH of the corresponding MBSFN subframe by using the CRS. . That is, the unicast data can be transmitted by using the idle MBSFN subframe, so that the utilization of the MBSFN subframe can be improved, and the waste of the wireless resources can be avoided.

Moreover, the eNB may transmit unicast data to the UE in the MBSFN subframe only for the UE having the capability of receiving the unicast data in the MBSFN subframe, and thus, the eNB may prevent the eNB from transmitting unicast data to all UEs in the MBSFN subframe, but Some UEs do not have The ability to receive unicast data in an MBSFN subframe is not capable of receiving unicast data transmitted by the eNB in the MBSFN subframe, resulting in waste of radio resources.

Embodiment 2

An embodiment of the present invention provides an eNB. As shown in FIG. 14, the eNB includes: an obtaining unit 1401 and a sending unit 1402.

The acquiring unit 1401 is configured to obtain MBMS scheduling information of the MBMS scheduling information, where the MBMS scheduling information includes: a subframe index number of the MBSFN subframe of the first MBMS single frequency network, where the first MBSFN subframe is sent by the eNB to the UE in one scheduling period. The last one of the at least one MBSFN subframe used by the MBMS service for transmitting the MBMS service.

The sending unit 1402 is configured to send MBMS scheduling information to the UE. In the scheduling period, other MBSFN subframes after the first MBSFN subframe, send unicast data to the UE, and each MBSFN subframe in other MBSFN subframes. The CRS for performing unicast data transmission in the MBSFN subframe is sent to the UE, so that the UE acquires the unicast data in the corresponding MBSFN subframe by using the CRS according to the MBMS scheduling information.

Further, as shown in FIG. 15, the foregoing eNB may further include: a scrambling unit 1403.

The scrambling unit 1403 is configured to perform, in the foregoing sending unit 1402, other MBSFN subframes after the first MBSFN subframe in the scheduling period, and use the C-RNTI of the UE to scramble the PDSCH before transmitting the unicast data to the UE through the PDSCH. Unicast data to be sent.

Further, the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The sending unit 1402 is further configured to send the unicast data to the UE by using the PDSCH by using other PRBs except the first PRB in the first MBSFN subframe.

Further, the MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and resource block location information of each second PRB in the at least one second PRB.

At least one second MBSFN subframe is at least one of the at least one MBSFN subframe Other MBSFN subframes other than the MBSFN subframes; each of the second PRBs in the at least one second PRB is an MBMS service in a different second MBSFN subframe in the at least one second MBSFN subframe, respectively, in the corresponding second MBSFN subframe. The PRB occupied in the middle.

The sending unit 1402 is further configured to send unicast data to the UE by using the PDSCH by using a PRB other than the second PRB in each of the at least one second MBSFN subframe.

Further, the method for the sending unit 1402 to send the MBMS scheduling information to the UE is specifically: the sending unit 1402 sends the multicast channel MCH scheduling information MSI to the UE in the first MBSFN subframe in the at least one MBSFN subframe; wherein, in the MSI Includes MBMS scheduling information.

Further, the method for the sending unit 1402 to send the subframe index number of the first MBSFN subframe to the UE is specifically: the sending unit 1402 sends the MSI to the UE in the first MBSFN subframe in the at least one MBSFN subframe; the MSI includes The subframe index number of the first MBSFN subframe.

Further, the method for the sending unit to send the resource block location information of the first PRB to the UE is specifically: the sending unit 1402 sends the DCI to the UE by using the PDCCH of the first MBSFN subframe in the first MBSFN subframe, where the DCI is included Resource block location information of the first PRB.

Further, the method for the sending unit 1402 to send the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe to the UE is specifically: the first MBSFN of the at least one MBSFN subframe of the sending unit 1402 a frame, the MSI is sent to the UE; the MSI includes a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe.

The sending unit 1402 is configured to send the resource block location information of each second PRB in the at least one second PRB to the UE, where the sending unit 1402 passes each second MBSFN subframe in the at least one second MBSFN subframe. The PDCCH of the second MBSFN subframe transmits DCI to the UE, where the DCI includes resource block location information of the second PRB corresponding to the second MBSFN subframe.

Further, the sending unit 1402 is further configured to perform in the second MBSFN subframe. Each second MBSFN subframe transmits a radio network temporary identifier RNTI to the UE through the MCCH before transmitting the DCI to the UE by using the PDCCH of the second MBSFN subframe.

The scrambling unit 1403 is further configured to scramble the DCI by using the RNTI.

Further, as shown in FIG. 15, the foregoing eNB may further include: a receiving unit 1404.

The receiving unit 1404 is configured to: before the sending unit 1402 sends the MBMS scheduling information to the UE, receive the MBMS capability information sent by the UE, where the MBMS capability information is used to indicate that the UE has the capability of receiving the unicast data in the MBSFN subframe, and is required to be in the MBSFN sub- The frame receives unicast data.

The sending unit 1402 is further configured to send an idle MBSFN subframe transmission request to the MCE, where the idle MBSFN subframe transmission request is used to request transmission of unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

The receiving unit 1404 is further configured to receive an idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB to perform unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. Transmission.

The sending unit 1402 is further configured to send an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE receives the unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

It should be noted that the specific description of some functional modules in the eNB provided by the embodiments of the present invention may be referred to the corresponding content in the method embodiments, and details are not described in detail in this embodiment.

The eNB provided by the embodiment of the present invention may send unicast data to the UE in other MBSFN subframes other than the at least one MBSFN subframe in the scheduling period, that is, the idle MBSFN subframe that does not currently carry the MBMS service, and in these idle MBSFNs. The CRS is transmitted to the UE in the subframe; thus, even if the UE of the TM9/10 can receive the CRS in the idle MBSFN subframe according to the indication of the MBMS scheduling information, the CRS is used to obtain the unicast data in the PDSCH of the corresponding MBSFN subframe. That is, the unicast data can be transmitted to the UE in any transmission mode by using the idle MBSFN subframe, so that the utilization of the MBSFN subframe can be improved, and the waste of the radio resources can be avoided.

Embodiment 3

An embodiment of the present invention provides an eNB. As shown in FIG. 16, the eNB includes:

One or more processors 1601, memory 1602, bus system 1603, transceiver 1604, and one or more applications, one or more processors 1601, memory 1602, and transceivers 1604 are coupled by a bus system 1603.

One or more applications are stored in the memory 1602, and the one or more applications include instructions. When the processor 1601 of the eNB executes the instructions, the eNB performs any of the operations of FIG. 4, FIG. 6, FIG. 7, FIG. 10 or FIG. A method of transmitting unicast data as shown in the accompanying drawings.

The transceiver 1604 is configured to interact with the UE and the MCE in place of the receiving unit 1404 and the transmitting unit 1402. The processor 1601 is configured to execute an instruction, and is specifically used to replace the scrambling unit 1403 and the obtaining unit 1401. That is, the processor 1601 may be an integration of the functional unit or the functional module, such as the scrambling unit 1403 and the obtaining unit 1401, that is, the foregoing functional modules may be integrated into one processor 1601.

The processor 1601 may be a central processing unit (English: Central Processing Unit, CPU for short), or an application specific integrated circuit (ASIC), or configured to implement the embodiment of the present invention. One or more integrated circuits.

Among them, the bus can be an industry standard architecture (English: Industry Standard Architecture, ISA for short) bus, external device interconnection (English: Peripheral Component Interconnect, referred to as: PCI) bus or extended industry standard architecture (English: Extended Industry Standard Architecture, referred to as EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 16, but it does not mean that there is only one bus or one type of bus.

The embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores one or more programs, where the one or more programs include instructions, when the processor of the eNB executes the instruction, the eNB performs, for example, A method of transmitting unicast data as shown in any of FIG. 4, FIG. 6, FIG. 7, FIG. 10 or FIG.

The computer readable storage medium may contain high speed RAM memory and may also include A non-volatile memory, such as at least one disk storage.

The eNB provided by the embodiment of the present invention may send unicast data to the UE in other MBSFN subframes other than the at least one MBSFN subframe in the scheduling period, that is, the idle MBSFN subframe that does not currently carry the MBMS service, and in these idle MBSFNs. The CRS is transmitted to the UE in the subframe; thus, even if the UE of the TM9/10 can receive the CRS in the idle MBSFN subframe according to the indication of the MBMS scheduling information, the CRS is used to obtain the unicast data in the PDSCH of the corresponding MBSFN subframe. That is, the unicast data can be transmitted to the UE in any transmission mode by using the idle MBSFN subframe, so that the utilization of the MBSFN subframe can be improved, and the waste of the radio resources can be avoided.

Embodiment 4

The embodiment of the present invention further provides a UE. As shown in FIG. 17, the UE includes: a receiving unit 1701 and a demodulating unit 1702.

The receiving unit 1701 is configured to receive the MBMS scheduling information of the multimedia broadcast multicast service sent by the eNB, where the MBMS scheduling information includes: a subframe index number of the MBSFN subframe of the first MBMS single frequency network, where the first MBSFN subframe is an eNB in a scheduling period. Transmitting, to the UE, a subframe of the at least one MBSFN subframe used by the MBMS service for transmitting the MBMS service; and according to the indication of the MBMS scheduling information, each MBSFN subframe after the first MBSFN subframe in the scheduling period The cell-specific reference signal CRS is received.

The demodulation unit 1702 is configured to perform channel estimation by using the CRS received by the receiving unit 1701, and demodulate the unicast data from the PDSCH of the MBSFN subframe.

Further, the demodulation unit 1702 is specifically configured to determine other MBSFN subframes after the first MBSFN subframe in the scheduling period according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information.

The receiving unit 1701 is specifically configured to receive the CRS in each MBSFN subframe in the other MBSFN subframe.

The demodulation unit 1702 is specifically configured to perform channel estimation by using the CRS, and demodulate the unicast data from the PDSCH of the MBSFN subframe.

Further, the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, where the first PRB is a PRB occupied by the MBMS service in the first MBSFN subframe.

The receiving unit 1701 is further configured to receive, in the first MBSFN subframe, other unicast data except the first PRB, and receive unicast data that is sent by the eNB through the PDSCH.

Further, the MBMS scheduling information further includes: a subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe and resource block location information of each second PRB in the at least one second PRB.

The at least one second MBSFN subframe is another MBSFN subframe other than the first MBSFN subframe in the at least one MBSFN subframe; each second PRB in the at least one second PRB is respectively in the at least one second MBSFN subframe The MBMS service in the different second MBSFN subframes is in the PRB occupied by the second MBSFN subframe.

The receiving unit 1701 is further configured to receive, in each second MBSFN subframe of the at least one second MBSFN subframe, unicast data sent by the eNB through the PDSCH, except for other PRBs corresponding to the second PRB.

Further, the method for the receiving unit 1701 to receive the MBMS scheduling information sent by the eNB is specifically: the receiving unit 1701 receives the multicast channel MCH scheduling information MSI sent by the eNB in the first MBSFN subframe in the at least one MBSFN subframe, where MBMS scheduling information is included in the MSI.

Further, the receiving unit 1701 receives the subframe index number of the first MBSFN subframe that is sent by the eNB, where the receiving unit 1701 receives the MSI sent by the eNB in the first MBSFN subframe in the at least one MBSFN subframe. The MSI includes a subframe index number of the first MBSFN subframe.

Further, the method for the receiving unit 1701 to receive the resource block location information of the first PRB sent by the eNB is specifically: the receiving unit 1701 receives the downlink of the eNB by using the physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe. Control information DCI; wherein the DCI includes resource block location information of the first PRB.

Further, the method for receiving, by the receiving unit 1701, the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe that is sent by the eNB is specifically: The receiving unit 1701 receives the MSI transmitted by the eNB in the first MBSFN subframe of the at least one MBSFN subframe, and includes the subframe index number of each of the second MBSFN subframes in the at least one second MBSFN subframe.

The method for the receiving unit 1701 to receive the resource block location information of each second PRB in the at least one second PRB sent by the eNB is specifically: the receiving unit 1701 is in each second MBSFN subframe in the second MBSFN subframe, and the receiving eNB passes the a DCI sent by the PDCCH of the second MBSFN subframe, where the DCI includes resource block location information of the second PRB corresponding to the MBSFN subframe.

Further, the receiving unit 1701 is further configured to: before each eNB sends the DCI sent by the PDCCH of the second MBSFN subframe, the receiving eNB passes the multicast control channel MCCH in each second MBSFN subframe in the second MBSFN subframe. The transmitted radio network temporary identifier RNTI; the RNTI is used to obtain the DCI from the PDCCH of the MBSFN subframe.

Further, as shown in FIG. 18, the foregoing UE may further include: a sending unit 1703.

The sending unit 1703 is configured to: before the receiving unit 1701 receives the MBMS scheduling information sent by the eNB, send the MBMS capability information to the eNB, where the MBMS capability information is used to indicate that the UE has the capability of receiving the unicast data in the MBSFN subframe, and hopes to be in the MBSFN sub- The frame receives unicast data.

The receiving unit 1701 is further configured to receive an MBMS capability response sent by the eNB, where the MBMS capability response is used to instruct the UE to receive unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period.

It should be noted that the specific description of some of the functional modules in the UE provided by the embodiment of the present invention may refer to the corresponding content in the method embodiment, and details are not described in detail in this embodiment.

The UE provided by the embodiment of the present invention may receive the CRS in each MBSFN subframe after the first MBSFN subframe in the scheduling period according to the MBMS scheduling information received from the eNB, and use the CRS for channel estimation, from the MBSFN subframe. The PDSCH demodulates unicast data. That is, according to the present scheme, even if the UE is a non-TM9/10 UE, channel estimation can be performed by using CRS, and unicast data can be demodulated from the PDSCH of the MBSFN subframe, that is, The UE in any transmission mode can demodulate the unicast data from the PDSCH of the MBSFN subframe, thereby improving the utilization of the MBSFN subframe and avoiding waste of radio resources.

Embodiment 5

An embodiment of the present invention provides a UE. As shown in FIG. 19, the UE includes:

One or more processors 1901, memory 1902, bus system 1903, transceiver 1904, and one or more applications, one or more processors 1901, memory 1902, and transceiver 1904 are coupled by a bus system 1903.

One or more applications are stored in the memory 1902, and the one or more applications include instructions. When the processor 1901 of the UE executes the instructions, the UE performs any of FIG. 4, FIG. 6, FIG. 7, FIG. 10 or FIG. A method of transmitting unicast data as shown in the accompanying drawings.

The transceiver 1904 is configured to interact with the eNB in place of the receiving unit 1701 and the transmitting unit 1703. The processor 1901 is configured to execute an instruction, and is specifically used to replace the demodulation unit 1702 and the like. That is, the processor 1901 may be an integration of functional units or functional modules such as the demodulation unit 1702 described above, that is, the foregoing functional modules may be integrated into one of the processors 1901.

The processor 1601 may be a CPU, or an ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

The bus can be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 19, but it does not mean that there is only one bus or one type of bus.

The embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores one or more programs, where the one or more programs include instructions, when the processor of the UE executes the instruction, the UE performs, for example, A method of transmitting unicast data as shown in any of FIG. 4, FIG. 6, FIG. 7, FIG. 10 or FIG.

The computer readable storage medium may include high speed RAM memory and may also include nonvolatile memory such as at least one disk memory.

The UE provided by the embodiment of the present invention may receive the CRS in each MBSFN subframe after the first MBSFN subframe in the scheduling period according to the MBMS scheduling information received from the eNB, and use the CRS for channel estimation, from the MBSFN subframe. PDSCH demodulation list Broadcast data. That is, by using the scheme, even if the UE is a non-TM9/10 UE, the channel estimation can be performed by using the CRS, and the unicast data can be demodulated from the PDSCH of the MBSFN subframe, that is, the UE in any transmission mode can be from the MBSFN subframe. The PDSCH demodulates unicast data, thereby improving the utilization of MBSFN subframes and avoiding waste of radio resources.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit is implemented in the form of a software functional unit and is independent When the product is sold or used, it can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims (46)

A method for transmitting unicast data, comprising: The evolved base station eNB sends the multimedia broadcast multicast service MBMS scheduling information to the user equipment UE, where the MBMS scheduling information includes: a subframe index number of the first MBMS single frequency network MBSFN subframe, where the first MBSFN subframe is And the last one of the at least one MBSFN subframe used by the eNB to transmit the MBMS service to the UE in one scheduling period; The eNB sends unicast data to the UE in the other MBSFN subframes after the first MBSFN subframe in the scheduling period, and sends a cell in each MBSFN subframe in the other MBSFN subframes. Exclusive reference signal CRS. The method according to claim 1, wherein the eNB sends a single to the UE through the physical downlink shared channel PDSCH in the other MBSFN subframes of the first MBSFN subframe in the scheduling period. Before the data is broadcast, the method further includes: The eNB uses the cell radio network temporary identifier C-RNTI of the UE to scramble the unicast data to be sent on the PDSCH. The method according to claim 1 or 2, wherein the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, wherein the first PRB is the MBMS service at the first The PRB occupied in the MBSFN subframe; The method further includes: The eNB uses the other PRBs except the first PRB in the first MBSFN subframe to send unicast data to the UE through the PDSCH. The method according to any one of claims 1-3, wherein the MBMS scheduling information further comprises: a subframe index number and at least one of each second MBSFN subframe in the at least one second MBSFN subframe Resource block location information of each second PRB in the second PRB; The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is In the at least one second MBSFN subframe The PRMS occupied by the MBMS service in the second MBSFN subframe is corresponding to the PRB occupied by the second MBSFN subframe; The method further includes: The eNB uses the PRBs other than the second PRB in each of the at least one second MBSFN subframe to send unicast data to the UE through the PDSCH. The method according to any one of claims 1-4, wherein the method for the eNB to send the MBMS scheduling information to the UE is specifically: The eNB sends a multicast channel MCH scheduling information MSI to the UE in a first MBSFN subframe of the at least one MBSFN subframe; The MSI includes the MBMS scheduling information. The method according to any one of claims 1-4, wherein the method for the eNB to send the subframe index number of the first MBSFN subframe to the UE is specifically: The eNB sends an MSI to the UE in a first MBSFN subframe of the at least one MBSFN subframe; the MSI includes a subframe index number of the first MBSFN subframe. The method according to claim 3 or 4, wherein the method for the eNB to send the resource block location information of the first PRB to the UE is specifically: The eNB sends downlink control information DCI to the UE by using a physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe, where the DCI includes the resource block of the first PRB. location information. The method according to claim 4, wherein the method for the eNB to send the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe to the UE is specifically: The eNB sends an MSI to the UE in a first MBSFN subframe in the at least one MBSFN subframe, where the MSI includes each second MBSFN subframe in the at least one second MBSFN subframe. Subframe index number; Transmitting, by the eNB, each second of the at least one second PRB to the UE The method for the resource block location information of the PRB is specifically as follows: The eNB sends a DCI to the UE by using a PDCCH of the second MBSFN subframe in each second MBSFN subframe of the at least one second MBSFN subframe, where the DCI includes the first Resource block location information of the second PRB corresponding to the two MBSFN subframes. The method according to claim 8, wherein the eNB sends a DCI to the UE by using a PDCCH of the second MBSFN subframe in each second MBSFN subframe in the second MBSFN subframe. Previously, the method further includes: Transmitting, by the eNB, a radio network temporary identifier RNTI to the UE by using a multicast control channel MCCH; The eNB scrambles the DCI using the RNTI. The method according to any one of claims 1 to 9, wherein before the eNB sends the MBMS scheduling information to the user equipment UE, the method further includes: The eNB receives the MBMS capability information sent by the UE, where the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in an MBSFN subframe, and is expected to receive unicast data in an MBSFN subframe. The eNB sends an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE receives unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. The method according to claim 10, wherein, after the eNB receives the MBMS capability information sent by the UE, and before the eNB sends an MBMS capability response to the UE, the method further includes: The eNB sends an idle MBSFN subframe transmission request to the multi-cell/multicast coordination entity MCE, where the idle MBSFN subframe transmission request is used to request other MBSFN sub-members other than the at least one MBSFN subframe in the scheduling period. Frame for unicast data transmission; Receiving, by the eNB, an idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB to be in the The unicast data is transmitted in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. A method for transmitting unicast data, comprising: The user equipment UE receives the MBMS scheduling information of the multimedia broadcast multicast service sent by the evolved base station eNB, where the MBMS scheduling information includes: a subframe index number of the first MBMS single frequency network MBSFN subframe, where the first MBSFN subframe is a subframe in which at least one MBSFN subframe used by the eNB to transmit the MBMS service to the UE in one scheduling period and the last one used to transmit the MBMS service; Receiving, by the UE according to the indication of the MBMS scheduling information, a cell-specific reference signal CRS in each MBSFN subframe after the first MBSFN subframe in the scheduling period, and using the CRS to perform channel estimation, The physical downlink shared channel PDSCH of the MBSFN subframe demodulates unicast data. The method according to claim 12, wherein the UE receives a cell-specific reference in each MBSFN subframe after the first MBSFN subframe in the scheduling period according to the indication of the MBMS scheduling information. The signal CRS is used to perform channel estimation by using the CRS, and the unicast data is demodulated from the physical downlink shared channel PDSCH of the MBSFN subframe, including: Determining, by the UE, other MBSFN subframes after the first MBSFN subframe in the scheduling period according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information; The UE receives a CRS in each MBSFN subframe of the other MBSFN subframes, and uses the CRS for channel estimation, and demodulates the unicast data from the PDSCH of the MBSFN subframe. The method according to claim 12 or 13, wherein the MBMS scheduling information further comprises: resource block location information of the first physical resource block PRB, wherein the first PRB is the MBMS service at the first The PRB occupied in the MBSFN subframe; The method further includes: The UE receives, in the first MBSFN subframe, other unicast data except the first PRB, and receives unicast data sent by the eNB through the PDSCH. The method according to any one of claims 12-14, wherein the MBMS scheduling information further comprises: a subframe index number and at least one of each second MBSFN subframe in the at least one second MBSFN subframe Resource block location information of each second PRB in the second PRB; The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is The PRMS occupied by the MBMS service in the second MBSFN subframe in the at least one second MBSFN subframe is corresponding to the PRB occupied by the second MBSFN subframe; The method further includes: The UE receives unicast data sent by the eNB through the PDSCH in each of the second MBSFN subframes of the at least one second MBSFN subframe, except for other PRBs corresponding to the second PRB. The method according to any one of claims 12-15, wherein the method for the UE to receive the MBMS scheduling information sent by the eNB is specifically: The UE receives the multicast channel MCH scheduling information MSI sent by the eNB in the first MBSFN subframe of the at least one MBSFN subframe; The MSI includes the MBMS scheduling information. The method according to any one of claims 12-15, wherein the method for the UE to receive the subframe index number of the first MBSFN subframe sent by the eNB is specifically: Receiving, by the UE, the MSI transmitted by the eNB in a first MBSFN subframe of the at least one MBSFN subframe; The MSI includes a subframe index number of the first MBSFN subframe. The method according to claim 14 or 15, wherein the method for the UE to receive the resource block location information of the first PRB sent by the eNB is specifically: The UE receives, in the first MBSFN subframe, downlink control information DCI that is sent by the eNB through a physical downlink control channel PDCCH of the first MBSFN subframe, where the DCI includes resources of the first PRB Block location information. The method according to claim 15, wherein the method for the UE to receive the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe sent by the eNB is specifically: Receiving, by the UE, an MSI sent by the eNB in a first MBSFN subframe of the at least one MBSFN subframe; and including, in the MSI, each second MBSFN subframe in the at least one second MBSFN subframe Subframe index number; The method for the UE to receive the resource block location information of each second PRB in the at least one second PRB that is sent by the eNB is specifically: Receiving, by the UE, a DCI sent by the eNB through a PDCCH of the second MBSFN subframe in each second MBSFN subframe of the second MBSFN subframe, where the DCI includes the MBSFN subframe Corresponding resource block location information of the second PRB. The method according to claim 19, wherein in the second MBSFN subframe of the second MBSFN subframe, the UE receives the PDCCH sent by the eNB through the second MBSFN subframe. Before the DCI, the method further includes: Receiving, by the UE, a radio network temporary identifier RNTI sent by the eNB through a multicast control channel MCCH; Receiving, by the UE, the DCI sent by the eNB in the PDCCH of the MBSFN subframe in each of the other MBSFN subframes, including: The UE obtains the DCI from the PDCCH of the MBSFN subframe by using the RNTI. The method according to any one of claims 12 to 20, wherein before the UE receives the MBMS scheduling information of the multimedia broadcast multicast service sent by the evolved base station eNB, the method further includes: The UE sends MBMS capability information to the eNB, where the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in an MBSFN subframe, and is expected to receive unicast data in an MBSFN subframe. The UE receives an MBMS capability response sent by the eNB, where the MBMS capability response is used to indicate that the UE receives unicast data in other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. An evolved base station eNB, comprising: An acquiring unit, configured to acquire MBMS scheduling information of the multimedia broadcast multicast service, where the MBMS scheduling information includes: a subframe index number of a first MBMS single frequency network MBSFN subframe, where the first MBSFN subframe is the eNB in one The scheduling period sends, to the UE, a subframe for transmitting an MBMS service among the at least one MBSFN subframe used by the MBMS service; a sending unit, configured to send the MBMS scheduling information to the user equipment UE, and send, in the scheduling period, other MBSFN subframes after the first MBSFN subframe to the UE, and send the unicast data to Each MBSFN subframe in the other MBSFN subframe transmits, to the UE, a cell-specific reference signal CRS for performing unicast data transmission in the MBSFN subframe, so that the UE adopts the CRS according to the MBMS scheduling information. Obtain unicast data in the corresponding MBSFN subframe. The eNB according to claim 22, further comprising: a scrambling unit, configured to: after the sending, by using the sending, the other MBSFN subframes in the scheduling period, after the first MBSFN subframe, send the unicast data to the UE by using a PDSCH, The cell radio network temporary identifier C-RNTI of the UE scrambles the unicast data to be transmitted on the PDSCH. The eNB according to claim 22 or 23, wherein the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, where the first PRB is the MBMS service at the first The PRB occupied in the MBSFN subframe; The sending unit is further configured to use the other PRBs except the first PRB in the first MBSFN subframe to send unicast data to the UE by using the PDSCH. The eNB according to any one of claims 22 to 24, wherein the MBMS scheduling information further includes: a subframe index number and at least one of each second MBSFN subframe in the at least one second MBSFN subframe Resource block location information of each second PRB in the second PRB; The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is In the at least one second MBSFN subframe The PRMS occupied by the MBMS service in the second MBSFN subframe is corresponding to the PRB occupied by the second MBSFN subframe; The sending unit is further configured to send, by using the PDSCH, a unicast to the UE by using a PRB other than the second PRB in each second MBSFN subframe of the at least one second MBSFN subframe. data. The eNB according to any one of claims 22-25, wherein the method for the sending unit to send the MBMS scheduling information to the UE is specifically: The transmitting unit sends a multicast channel MCH scheduling information MSI to the UE in a first MBSFN subframe of the at least one MBSFN subframe; The MSI includes the MBMS scheduling information. The eNB according to any one of claims 22-25, wherein the method for the sending unit to send the subframe index number of the first MBSFN subframe to the UE is specifically: The sending unit sends an MSI to the UE in a first MBSFN subframe of the at least one MBSFN subframe; the MSI includes a subframe index number of the first MBSFN subframe. The eNB according to claim 24 or 25, wherein the method for the sending unit to send the resource block location information of the first PRB to the UE is specifically: Transmitting, by the sending unit, downlink control information DCI to the UE by using a physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe, where the DCI includes the resource of the first PRB Block location information. The eNB according to claim 25, wherein the method for the sending unit to send the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe to the UE is specifically: Transmitting, by the sending unit, an MSI to the UE in a first MBSFN subframe of the at least one MBSFN subframe; and including, in the MSI, each second MBSFN subframe in the at least one second MBSFN subframe Subframe index number; The method for the sending unit to send the resource block location information of each second PRB in the at least one second PRB to the UE is specifically: Transmitting, by the sending unit, a DCI to the UE by using a PDCCH of the second MBSFN subframe in each second MBSFN subframe of the at least one second MBSFN subframe, where the DCI includes the Resource block location information of the second PRB corresponding to the second MBSFN subframe. The eNB according to claim 29, wherein the sending unit is further configured to perform, in each second MBSFN subframe in the second MBSFN subframe, a PDCCH direction of the second MBSFN subframe. Before transmitting the DCI, the UE sends a radio network temporary identifier RNTI to the UE by using a multicast control channel MCCH; The scrambling unit is further configured to scramble the DCI by using the RNTI. The eNB according to any one of claims 22 to 30, further comprising: a receiving unit, configured to receive, after the sending unit sends the MBMS scheduling information to the UE, the MBMS capability information that is sent by the UE, where the MBMS capability information is used to indicate that the UE has the capability of receiving unicast data in an MBSFN subframe. And hoping to receive unicast data in the MBSFN subframe; The sending unit is further configured to send an MBMS capability response to the UE, where the MBMS capability response is used to indicate that the UE receives other MBSFN subframe receiving orders in the scheduling period except the at least one MBSFN subframe. Broadcast data. The eNB according to claim 31, wherein the sending unit is further configured to: after the receiving unit receives the MBMS capability information sent by the UE, the sending unit sends an MBMS capability response to the UE. And transmitting an idle MBSFN subframe transmission request to the multi-cell/multicast coordination entity MCE, where the idle MBSFN subframe transmission request is used to request other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. Perform unicast data transmission; The receiving unit is further configured to receive an idle MBSFN subframe transmission response sent by the MCE, where the idle MBSFN subframe transmission response is used to indicate that the MCE allows the eNB to include the at least one in the scheduling period. Other MBSFN subframes outside the MBSFN subframe are used for unicast data transmission. A user equipment (UE), comprising: a receiving unit, configured to receive MBMS scheduling information of a multimedia broadcast multicast service sent by an evolved base station eNB, where the MBMS scheduling information includes: a subframe index number of a first MBMS single frequency network MBSFN subframe, the first MBSFN subframe a subframe for transmitting an MBMS service in the at least one MBSFN subframe used by the eNB to send the MBMS service to the UE in one scheduling period; according to the indication of the MBMS scheduling information, in the scheduling period Receiving a cell-specific reference signal CRS for each MBSFN subframe after the first MBSFN subframe; And a demodulation unit, configured to perform channel estimation by using the CRS received by the receiving unit, and demodulate unicast data from a physical downlink shared channel (PDSCH) of the MBSFN subframe. The UE according to claim 33, wherein the demodulation unit is configured to determine, according to the subframe index number of the first MBSFN subframe in the MBMS scheduling information, the scheduling period. Other MBSFN subframes after the first MBSFN subframe; The receiving unit is specifically configured to receive a CRS in each MBSFN subframe in the other MBSFN subframes; The demodulation unit is specifically configured to perform channel estimation by using the CRS, and demodulate the unicast data from the PDSCH of the MBSFN subframe. The UE according to claim 33 or 34, wherein the MBMS scheduling information further includes: resource block location information of the first physical resource block PRB, wherein the first PRB is the MBMS service at the first The PRB occupied in the MBSFN subframe; The receiving unit is further configured to receive, in the first MBSFN subframe, other unicast data except the first PRB, and receive unicast data sent by the eNB by using the PDSCH. The UE according to any one of claims 33 to 35, wherein the MBMS scheduling information further comprises: a subframe index number and at least one of each second MBSFN subframe in the at least one second MBSFN subframe Resource block location information of each second PRB in the second PRB; The at least one second MBSFN subframe is another MBSFN subframe in the at least one MBSFN subframe except the first MBSFN subframe; each second PRB in the at least one second PRB is In the at least one second MBSFN subframe The PRMS occupied by the MBMS service in the second MBSFN subframe is corresponding to the PRB occupied by the second MBSFN subframe; The receiving unit is further configured to receive, in each second MBSFN subframe of the at least one second MBSFN subframe, a PRB sent by the eNB by using the PDSCH except for a PRB other than the second PRB. Broadcast data. The UE according to any one of claims 33 to 36, wherein the method for the receiving unit to receive the MBMS scheduling information sent by the eNB is specifically: The receiving unit receives the multicast channel MCH scheduling information MSI sent by the eNB in the first MBSFN subframe of the at least one MBSFN subframe; The MSI includes the MBMS scheduling information. The UE according to any one of claims 33 to 36, wherein the receiving unit receives the subframe index number of the first MBSFN subframe sent by the eNB, specifically: The receiving unit receives an MSI sent by the eNB in a first MBSFN subframe of the at least one MBSFN subframe; The MSI includes a subframe index number of the first MBSFN subframe. The UE according to claim 35 or claim 36, wherein the method for the receiving unit to receive the resource block location information of the first PRB sent by the eNB is specifically: Receiving, by the receiving unit, downlink control information DCI sent by the eNB by using a physical downlink control channel PDCCH of the first MBSFN subframe in the first MBSFN subframe, where the DCI includes the first PRB Resource block location information. The UE according to claim 36, wherein the receiving unit receives the subframe index number of each second MBSFN subframe in the at least one second MBSFN subframe sent by the eNB, specifically: Receiving, by the receiving unit, an MSI sent by the eNB in a first MBSFN subframe of the at least one MBSFN subframe; and including, in the MSI, each second MBSFN sub of the at least one second MBSFN subframe The subframe index number of the frame; Receiving, by the receiving unit, each of the at least one second PRB sent by the eNB The method for the resource block location information of the second PRB is specifically: The receiving unit receives, in each second MBSFN subframe of the second MBSFN subframe, a DCI sent by the eNB by using a PDCCH of the second MBSFN subframe, where the DCI includes the MBSFN sub- Resource block location information of the second PRB corresponding to the frame. The UE according to claim 40, wherein the receiving unit is further configured to receive, by each second MBSFN subframe in the second MBSFN subframe, the eNB by using the second MBSFN subframe. Before receiving the DCI of the PDCCH, receiving the radio network temporary identifier RNTI sent by the eNB through the multicast control channel MCCH; The receiving unit is further configured to obtain the DCI from the PDCCH of the MBSFN subframe by using the RNTI. The UE according to any one of claims 33 to 41, further comprising: a sending unit, configured to send, to the eNB, MBMS capability information, where the MBMS capability information is used to indicate that the UE has a MBSFN subframe receiving list, before the receiving unit receives the MBMS scheduling information sent by the eNB The ability to broadcast data, and hope to receive unicast data in MBSFN subframes; The receiving unit is further configured to receive an MBMS capability response sent by the eNB, where the MBMS capability response is used to indicate that the UE receives other MBSFN subframes except the at least one MBSFN subframe in the scheduling period. Unicast data. An evolved base station eNB, where the eNB includes: One or more processors, memories, bus systems, transceivers, and one or more applications, the one or more processors, the memory, and the transceiver being coupled by the bus system; The one or more applications are stored in the memory, the one or more applications including instructions, when the processor of the eNB executes the instructions, the eNB performs as in claims 1-11 A method of transmitting unicast data as described in any one of the preceding claims. A computer readable storage medium, wherein the computer readable storage medium stores one or more programs, the one or more programs including instructions The eNB performs the transmission method of the unicast data according to any one of claims 1 to 11 when the processor of the evolved base station eNB executes the instruction. A user equipment UE, wherein the UE includes: One or more processors, memories, bus systems, transceivers, and one or more applications, the one or more processors, the memory, and the transceiver being coupled by the bus system; The one or more applications are stored in the memory, the one or more applications including instructions, when the processor of the UE executes the instructions, the UE performs as in claims 12-21 A method of transmitting unicast data as described in any one of the preceding claims. A computer readable storage medium, wherein the computer readable storage medium stores one or more programs, the one or more programs including instructions when a processor of a user equipment UE executes the instructions The UE performs the method of transmitting unicast data according to any one of claims 12-21.

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