WO2017050091A1

WO2017050091A1 - Method and device for performing continuous receiving, and computer storage medium

Info

Publication number: WO2017050091A1
Application number: PCT/CN2016/097027
Authority: WO
Inventors: 王志
Original assignee: 深圳市中兴微电子技术有限公司
Priority date: 2015-09-23
Filing date: 2016-08-26
Publication date: 2017-03-30
Also published as: CN106550420A

Abstract

Disclosed is a method for performing continuous receiving, comprising: acquiring service area indicating (SAI) information of all neighboring cells of a cell where a user equipment (UE) resides; and when it is determined, based on the acquired SAI information, that there is a target cell corresponding to an eMBMS that is currently received, reelecting the target cell corresponding to the eMBMS that is currently received. Also disclosed is a device for performing continuous receiving, and a computer storage medium.

Description

Continuous receiving method, device and computer storage medium

Technical field

The present invention relates to receiving techniques, and more particularly to a method, apparatus and computer storage medium for continuous reception.

Background technique

Evolved Multimedia Broadcast Multicast Service (eMBMS) is a broadcast multicast technology based on the 3rd Generation Partnership Project (3GPP) R9 protocol. It is the most efficient video in the mobile field. One of the bearing technologies. eMBMS has more bandwidth, can provide more channels and content, and the playback picture is clearer and smoother, and the user experience is better.

FIG. 1 is a schematic diagram of a network architecture of an eMBMS in the prior art. As shown in FIG. 1 , the network architecture of the eMBMS includes, in addition to a Mobility Management Entity (MME) and an evolved Node B (eNB). Introducing a Multi-cell/Multicast Coordination Entity (MCE), a Multimedia Broadcast Multicast Service Gate (MBMS GW), an M1 interface, an M2 interface, and an M3 interface. The M1 interface is an MBMS GW. A logical interface between the MCE and the eNB, the M3 interface is the interface between the MCE and the MME, and the MME is the key control of the 3GPP protocol Long Term Evolution (LTE) access network. The node is responsible for the positioning and paging of the user equipment (UE) in the idle mode; the eNB is a bridge between the UE in the LTE and the evolved core network; in the network structure, the MCE can appear as a single network element. It can also be integrated into other network elements. It mainly performs access control and multicast/multicast single frequency network (Multimedia Broadcast multicast service Single Frequency N Etwork, MBSFN) Radio resource allocation for multiple cells, eMBMS Session control; MBMS-GW is also a logical entity whose main function is to send or broadcast data to an eNB that performs eMBMS content transmission using an IP (Internet Protocol) multicast protocol, and execute an eMBMS session control command sent by the MME, thereby controlling the direction. The transmission of eNB data; here, the eMBMS session control command includes session start and stop.

In order to receive the eMBMS service, the UE needs to read the eMBMS related system information of the cell and the corresponding resource configuration information. The following describes the system information block (SIB) of the eMBMS: the content of the SIB1 includes the cell-related camping parameters and the scheduling information of other SIBs, and the content of the SIB4 includes the same-frequency cell list, and the content of the SIB5 includes different contents. The frequency reselection parameter and the inter-frequency cell list, the content of the SIB13 includes the related parameters of the acquired MBMS control information, and the content of the SIB15 includes the eMBMS service frequency point and the Service Area Id (SAI) information on the adjacent frequency point.

In practical applications, the UE is in a mobile state anytime and anywhere. In order to ensure the continuity of the eMBMS service received by the UE, a related technical solution must be provided for guarantee. In the existing technical solutions, there are mainly two major measures, the first measure is: for all cells in the same multicast/multicast single frequency network area (MBSFN AREA), all have the same eMBMS resource configuration, and Time synchronization; in this way, when the cell moves here, it is not necessary to re-obtain the eMBMS resource configuration from the new cell, and use the eMBMS resource configuration of the original cell to continue the service reception; the second measure is: through the user service description information (User Service Description) , USD) and SIB15 to indicate which neighboring frequency points can provide eMBMS services, and the UE can perform cell reselection according to the neighboring frequency points that can provide the eMBMS service to ensure the continuity of the eMBMS service; FIG. 2 shows the performance of the SIB15 in the prior art. A schematic diagram of the form, as shown in FIG. 2, in SIB15, Freq1 to Freqn respectively represent n frequency points, n is a natural number; each frequency point corresponds to one SAI list, and each SAI list includes a corresponding frequency point that can be provided. SAI information of each eMBMS service; the SAI list corresponding to the frequency Freqi is represented as SAIDisti, and i takes 1 to n.

However, in the eMBMS network, not all cells on one frequency point can provide The service, or not necessarily, can provide the same service. Therefore, in the existing technical solution, when the UE needs to reselect to the target cell, if the target cell is a non-eMBMS serving cell or the target cell cannot provide the existing eMBMS service, the current eMBMS service reception is interrupted.

Summary of the invention

In order to solve the above technical problems, embodiments of the present invention are intended to provide a method, apparatus, and computer storage medium for continuous reception.

The technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a method for continuous reception, including:

Obtaining SAI information of each neighboring cell of the cell in which the UE resides;

When it is determined that there is a target cell corresponding to the eMBMS being received, it is reselected to the target cell corresponding to the eMBMS service being received.

In an embodiment, the acquiring the SAI information of each neighboring cell of the cell in which the UE resides includes: setting, in the SIB, SAI information of each neighboring cell of the cell in which the UE resides, the base station, the SIB The UE sends the SAI information of each neighboring cell of the cell in which the UE resides by receiving the SIB.

In an embodiment, the setting, in the SIB, the SAI information of each neighboring cell of the cell in which the UE resides includes: the correspondence between the original frequency point and the cell list in the SIB, and the original frequency point in the SIB15. Corresponding relationship with the SAI information, setting the correspondence between the cell and the SAI information in the SIB 15;

The corresponding relationship between the original frequency point and the cell list in the SIB includes at least one of the following: a correspondence between the SIB4 intermediate frequency point and the same-frequency cell list, and a correspondence between the SIB5 intermediate frequency point and the different-frequency cell list.

In an embodiment, after acquiring the SAI information of each neighboring cell of the cell in which the UE resides, the method further includes: the UE performs a neighbor cell measurement, and determines the presence based on the neighboring cell measurement result. When the target cell that meets the reselection condition is satisfied, it is determined whether there is a target cell corresponding to the eMBMS being received in the target cell that satisfies the reselection condition according to the neighboring cell measurement result and the acquired SAI information.

In an embodiment, the method further comprises: if there is no target cell that satisfies the reselection condition and the cell in which the UE camps no longer satisfies the camping condition, the UE selects a frequency point currently corresponding to the eMBMS to be received. Resident.

In an embodiment, each neighboring cell of the cell in which the UE camps includes at least one of the following: a cell in the same-frequency cell list in SIB4, and a cell in the inter-frequency cell list in SIB5.

The embodiment of the invention further provides an apparatus for continuously receiving, comprising: an obtaining module and a reselecting module; wherein

The acquiring module is configured to acquire SAI information of each neighboring cell of a cell in which the UE resides;

The reselection module is configured to reselect to the target cell corresponding to the eMBMS being received when determining that there is a target cell corresponding to the eMBMS being received based on the acquired SAI information.

In an embodiment, the acquiring module is further configured to perform neighbor cell measurement after acquiring SAI information of each neighboring cell of the cell in which the UE resides, and determine, according to the neighboring cell measurement result, that the target meets the reselection condition In the case of the cell, based on the neighboring cell measurement result and the acquired SAI information, it is determined whether there is a target cell corresponding to the eMBMS being received in the target cell that satisfies the reselection condition.

In an embodiment, the reselection module is further configured to: when the target cell that satisfies the reselection condition does not exist and the cell where the UE camps no longer meets the camping condition, select the frequency point corresponding to the eMBMS being received. Resident.

The embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the continuous receiving method according to the embodiment of the present invention.

The method, the device, and the computer storage medium provided by the embodiment of the present invention acquire the service area indication SAI information of each neighboring cell of the cell in which the UE resides, and determine, according to the acquired SAI information, that there is an eMBMS currently being received. When the target cell corresponding to the service is reselected to the target cell corresponding to the eMBMS service currently being received, the UE can accurately reselect the target cell corresponding to the eMBMS service currently being received, thereby ensuring continuity of the eMBMS service. Sexual reception improves user experience.

DRAWINGS

1 is a schematic diagram of a network architecture of an eMBMS in the prior art;

2 is a schematic diagram showing the expression form of the SIB 15 in the prior art;

3 is a flow chart of a first embodiment of a method for continuous reception of the present invention;

4 is a first schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for continuously receiving according to the present invention;

FIG. 5 is a second schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for continuously receiving according to the present invention;

FIG. 6 is a third schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for continuously receiving according to the present invention;

Figure 7 is a flow chart of a second embodiment of a method for continuous reception of the present invention;

Figure 8 is a flow chart of a third embodiment of the method for continuous reception of the present invention;

FIG. 9 is a schematic structural diagram of a device for continuously receiving according to an embodiment of the present invention.

detailed description

The technical solution in the embodiment of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention. Clearly and completely described.

First embodiment

FIG. 3 is a flowchart of a first embodiment of a method for continuously receiving according to the present invention. As shown in FIG. 3, the method includes:

Step 300: Acquire SAI information of each neighboring cell of the cell in which the UE resides.

The step of the method includes: setting, in the SIB, the SAI information of each neighboring cell of the cell in which the UE is camped, the base station sending the SIB to the UE, and the UE acquiring the SIB by using the SIB SAI information of neighboring cells.

Here, the SAI information of each neighboring cell of the cell in which the UE camps includes: a SAI list corresponding to each neighboring cell of the cell in which the UE resides; and each neighboring cell of the cell in which the UE camps The corresponding SAI list includes at least one SAI; each neighboring cell of the cell in which the UE resides includes at least one of the following cells: a cell in the same-frequency cell list in SIB4, and a cell in the inter-frequency cell list in SIB5.

Specifically, the SAI information of each neighboring cell of the cell in which the UE resides is set in the SIB, including: the correspondence between the original frequency point and the cell list in the SIB, and the original frequency and SAI information in the SIB15. Corresponding relationship between the cell and the SAI information is set in the SIB15, and the correspondence between the frequency point and the cell list is set. Here, the correspondence between the original frequency point and the cell list in the SIB includes at least one of the following: SIB4 intermediate frequency point The correspondence between the correspondence with the intra-frequency cell list and the SIB5 intermediate frequency point and the inter-frequency cell list.

As an implementation manner, the correspondence between the original frequency point and the cell list in the SIB, the original frequency point and the SAI information in the SIB15, and the bitMap mapping manner may be used to set the correspondence between the cell and the SAI information; It is determined that according to the correspondence between the original frequency point and the SAI information in the SIB15, it is determined whether each frequency point of the SIB4 and/or the SIB5 has SAI information corresponding to itself; the frequency point of the corresponding SAI information is recorded as the eMBMS service. Frequency point, use bitMap mapping mode to set the correspondence between eMBMS service frequency and SAI information; here, The frequency of SIB4 is the same frequency point, and each frequency point of SIB5 is the frequency of each frequency of SIB.

After the correspondence between the frequency of the eMBMS service and the SAI information is set by using the bit map mapping mode, the correspondence between the original frequency point and the cell list in the SIB and the correspondence between the eMBMS service frequency and the SAI information are used in the SIB. The cell corresponding to the SAI information exists in each cell at the frequency point, and the corresponding relationship between the SAI and the SAI information is set by using the bit map mapping mode. Here, each cell in the original frequency of the SIB includes the cell list corresponding to the same frequency point in the SIB4. Each cell and each cell in the cell list corresponding to each of the different frequency points in the SIB5.

The following describes a process of setting the correspondence between the cell and the SAI information by using the bitMap mapping mode through a specific example.

FIG. 4 is a first schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for continuously receiving according to the present invention. As shown in FIG. 4, the same frequency frequency point in the SIB4 is a service frequency point, and the SIB5 is used. There are eight different frequency points, which are represented as Freq1 to Freq8; the frequency point bitmap data freqBitMap is set in SIB15, and the frequency bitmap data freqBitMap includes nine bit data, which are represented as bit0 to bit8 respectively. Wherein, the service frequency point in SIB4 corresponds to bit data bit0, and the eight different frequency points correspond to bit1 to bit8 one-to-one; here, the value of each bit data is 0 or 1, when the value of bit data is 0, it indicates There is no SAI information for the corresponding frequency point; when the value of the bit data is 1, it indicates that the corresponding frequency point has SAI information. Exemplarily, in the frequency bitmap data freqBitMap, the values of the bit data bit0, bit2, bit5, and bit8 are all 1, and the values of the remaining bit data are 0. It can be seen that bit data bit0 corresponds to the same-frequency cell list under SIB4, bit2 corresponds to the second inter-frequency cell list in SIB5, bit5 corresponds to the fifth inter-frequency cell list in SIB5, and bit8 corresponds to SIB5. The eighth list of cells under the different frequency points.

After the frequency point bitmap data freqBitMap is set, the correspondence relationship with the frequency point bitmap data freqBitMap and the SAI information is set. FIG. 5 is a second schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for continuously receiving according to the present invention, as shown in FIG. 5 As shown, freqBitMap corresponds to the FreqSaiInfoList array, and the FreqSaiInfoList array consists of four SAI information. The four SAI information in the FreqSaiInfoList array corresponds to the four bit data of one value; here, the four SAI information in the FreqSaiInfoList array respectively represent FreqSaiInfoList[0], FreqSaiInfoList[1], FreqSaiInfoList[2], and FreqSaiInfoList[3], where FreqSaiInfoList[0] corresponds to bit0, FreqSaiInfoList[1] corresponds to bit2, FreqSaiInfoList[2] corresponds to bit5, and FreqSaiInfoList[3] ] corresponds to bit8.

Specifically, each SAI information in the FreqSaiInfoList array includes the following two parts: a SAI identity saiId and a cell mapping data cellBitMap; wherein the cellBitMap identifies which cells in the frequency point contain the saiId. FIG. 6 is a third schematic diagram of setting a correspondence between a cell and SAI information by using a bitMap mapping manner in the first embodiment of the method for implementing continuous reception of eMBMS according to the present invention. As shown in FIG. 6, there are 16 original frequency points in the SIB. The cells are respectively represented as Cell1 to Cell16, and the 16 cells in the original frequency of the SIB include each cell in the cell list corresponding to the same frequency point in SIB4 and each cell in the cell list corresponding to each different frequency point in SIB5; 16 bits of data are set in the SIB15, and the 16 bits of data are respectively represented as Bit0 to Bit15, and Bit0 to Bit15 are in one-to-one correspondence with 16 cells in the original frequency point in the SIB. The value of each bit data in Bit0 to Bit15 is 0 or 1. In Bit0 to Bit15, when the value of bit data is 0, it indicates that the corresponding cell does not have corresponding SAI information; when the value of bit data is 1, it indicates that The cell has corresponding SAI information.

In the above manner, the SAI information that can be provided by the serving cell and all neighboring cells can be identified. The base station generates SAI information in the serving cell and all neighboring cells according to this manner, and broadcasts the information to the UE.

In this step, the intra-frequency cell list in the SIB4 may be represented as an IntraFreqNeighCellList, and the inter-frequency cell list in the SIB5 may be represented as an InterFreqNeighCellList; wherein the intra-frequency cell list IntraFreqNeighCellList in the SIB4 may be exemplarily illustrated by the following code:

The correspondence between the cell list and the SAI information set in the SIB 15 can be exemplarily illustrated by the following code:

It can be seen that the modification of the content in the SIB 15 can represent the SAI information that each neighboring cell of the cell in which the UE camps can provide.

In this step, the UE acquires the SAI information of each neighboring cell of the cell in which the UE resides by receiving the SIB, including: the UE camps on the cell that provides the eMBMS, and simultaneously receives the USD and each cell of the cell in which the UE resides. The SAI information of the neighboring cell; wherein the USD includes the SAI information corresponding to the currently received eMBMS. Obviously, when the UE is camped on to the cell providing the eMBMS, an eMBMS reception is started.

Step 301: Determine, according to the acquired SAI information, that there is a target cell corresponding to the eMBMS that is being received, and reselect the target cell corresponding to the eMBMS that is being received.

The method includes: performing, by the UE, the neighboring area measurement, determining, according to the neighboring area measurement result and the acquired SAI information, whether there is a target cell corresponding to the eMBMS currently being received, and if yes, reselecting the eMBMS currently being received. Corresponding target cell; otherwise, if there is no target cell corresponding to the eMBMS currently being received, cell reselection is performed according to the following cell arrangement order: target cell corresponding to other eMBMSs of interest, target cell with SAI information, The remaining cell; here, the SAI information of the eMBMS of interest may be pre-identified, and thus, according to the SAI information of the eMBMS of the pre-identified e-message and the SAI information that each neighboring cell of the cell in which the UE camps, The cell is reselected to the target cell corresponding to other eMBMSs of interest. In addition, the remaining cells are: in addition to the target cell corresponding to the eMBMS currently being received, the target cell corresponding to other interested eMBMSs, and the target cell in which the SAI information exists, in each neighboring cell of the cell in which the UE is camped. Community.

It can be seen that, through the above target cell reselection mode, the UE can be preferentially reselected to the target cell corresponding to the eMBMS currently being received, thereby ensuring continuous reception of the eMBMS.

In this step, the neighboring cell measured by the UE includes at least one of the following: a cell in the SIB4 co-frequency cell list, and a cell in the SIB5 inter-frequency cell list.

The UE needs to perform cell reselection when the neighboring cell is completely completed, which can prevent cell reselection errors from occurring due to measurement of the desired cell. Here, the process of the UE performing the neighbor cell measurement has various existing implementation manners, which will not be described in detail herein.

Specifically, the determining, according to the neighboring area measurement result and the acquired SAI information, whether there is a target cell corresponding to the eMBMS currently being received, including: determining, according to the neighboring area measurement result and the 3GPP reselection criterion, whether the reselection condition exists Target cell, if there is a target cell that satisfies the reselection condition; then, in the target cell satisfying the reselection condition, according to the neighboring area measurement result and the location The acquired SAI information determines whether there is a target cell corresponding to the eMBMS currently being received.

Here, the reselection condition may be a condition set based on a 3GPP reselection criterion, for example, the reselection condition is a condition set based on the S criterion.

Further, if the UE reselects to the target cell, it attempts to camp on the target cell and continues to receive the corresponding eMBMS. When the UE fails to camp on the target cell or fails to continue receiving the corresponding eMBMS, the upper layer service is notified to hang.

If there is no target cell that satisfies the reselection condition, and the cell in which the UE camps still meets the camping condition, the UE does not perform cell reselection and continues to perform eMBMS reception on the currently camped cell.

If there is no target cell that satisfies the reselection condition and the cell in which the UE camps no longer satisfies the camping condition, the UE performs frequency camping according to the following priority order: the UE is currently receiving the frequency point corresponding to the eMBMS, and other senses. The frequency corresponding to the eMBMS of interest, the other frequency in the USD, the remaining frequency in the SIB15, and the remaining frequencies in the full band; here, the other frequencies in the USD are: all the frequencies in the USD except that the UE is currently The frequency points corresponding to the frequency points corresponding to the eMBMS and the frequency points corresponding to the other eMBMSs are received, and the remaining frequency points in the SIB 15 are: all the frequency points of the SIB 15 are removed: the UE is currently receiving the frequency points corresponding to the eMBMS, and other senses. The frequency point corresponding to the eMBMS of interest and the frequency points other than the other frequency points in the USD, the remaining frequency points of the whole frequency band are: all frequency points in the full frequency band except the frequency point corresponding to the eMBMS that the UE is currently receiving, and other interested The frequency point corresponding to the eMBMS, the other frequency points in the USD, and the frequency points other than the remaining frequency points in the SIB15.

Here, the camping condition, the frequency range of the full frequency band, and the frequency points in the full frequency band can be preset.

It should be noted that, in the case that the eMBMS service unicast is prioritized, the UE may also perform cell reselection according to the existing 3GPP protocol standard.

According to the first embodiment of the present invention, without increasing the size of the SIB4\SIB5 content, Corresponding relationship between the original frequency point and the cell list in the SIB and the original frequency point and SAI information in the SIB 15 are used to set the correspondence between the cell and the SAI information in the SIB 15; thus, the UE can be broadcasted through the system information. The SAI information of each neighboring cell of the camped cell, instead of broadcasting the SAI information under the frequency point according to the prior art scheme, and further, when the UE performs the target cell reselection, the direct reselection to the current receiving is performed. The eMBMS corresponds to the target cell, thereby ensuring the continuity reception of the eMBMS.

Second embodiment

In order to further embodies the object of the present invention, further exemplification will be made on the basis of the first embodiment of the present invention.

FIG. 7 is a flowchart of a second embodiment of a method for continuously receiving according to the present invention. As shown in FIG. 7, the process includes:

Step 700: The UE starts to camp on the cell CELL1 and receives the SIB from the base station.

Step 701: The UE performs eMBMS reception in the cell CELL1.

The step specifically includes: the UE initiates an eMBMS request, reads a control message of a multicast control channel (MCCH) according to the content of the SIB13, and starts receiving the eMBMS after receiving the control information of the MCCH.

Here, the process of the UE initiating the eMBMS request includes: the UE configuring the USD information through the application layer (AP), and initiating the eMBMS request based on the configured USD information.

Step 702: The UE performs neighbor cell measurement on the designated cell of the SIB4 and/or the SIB5, and after the neighboring cell is measured, performs cell reselection according to the preset cell reselection priority order.

Here, the preset cell reselection priority order is: the SAI information exists in the target cell corresponding to the eMBMS currently being received, the target cell corresponding to other interested eMBMSs, and all the designated cells in SIB4 and/or SIB5. Target cell, remaining cells.

Here, the remaining cells are: the target cell corresponding to the eMBMS currently being received, the target cell corresponding to other interested eMBMSs, and all the designated cells of the SIB4 and/or the SIB5, And a cell other than the target cell in which the SAI information exists in all the designated cells of the SIB4 and/or the SIB5.

Step 703: The UE determines, according to the neighboring cell measurement result, the number of target cells that meet the preset cell reselection condition, and performs corresponding operations based on the number of target cells that meet the preset cell reselection condition.

Here, the preset cell reselection condition may be: the S value is greater than the set threshold within the set time period.

Specifically, the corresponding operation according to the number of target cells that meet the preset cell reselection condition includes: if only one target cell CELL2 satisfies a preset cell reselection condition, the UE initiates a weight to the target cell CELL2. selected.

If there are multiple cells satisfying the preset cell reselection condition, the cell reselection is performed based on the preset cell reselection priority order. For example, there are three cells that satisfy a preset cell reselection condition, and the three cells are CELL3, CELL4, and CELL5 in order of high and low signal strength, wherein the cell CELL5 corresponds to the eMBMS service currently being received, and the cell CELL3 is the remaining cell in step 702, and cell CELL4 is the target cell corresponding to other eMBMS services of interest. It can be seen that although the cell CELL5 has the worst signal in the above three cells, according to the preset cell reselection priority order in step 702, the UE initiates reselection to the cell CELL5.

Further, when one or more cells meet the preset cell reselection condition, after the UE reselects to the target cell, the UE attempts to camp on the target cell and continues to receive the corresponding eMBMS, and fails to camp on the target cell. If the corresponding eMBMS fails to be received, the upper layer service is notified to hang.

If there is no target cell that satisfies the reselection condition, the UE does not perform cell reselection and continues to perform eMBMS reception on the currently camped cell.

Third embodiment

In order to further embodies the object of the present invention, based on the first embodiment of the present invention, Further examples.

FIG. 8 is a flowchart of a third embodiment of a method for implementing continuous reception of eMBMS according to the present invention. As shown in FIG. 8, the process includes:

Steps 800 to 802 are completely consistent with steps 700 to 702, and are not repeated here.

Step 803: If there is no target cell that satisfies the reselection condition, and the cell where the UE camps no longer meets the camping condition, the UE attempts to camp at the frequency point currently receiving the eMBMS, if the camping succeeds. Then, the eMBMS reception is resumed, and the process is ended; if the camping fails, the process jumps to step 804.

Step 804: The UE attempts to camp at the frequency point corresponding to other interested eMBMSs. If the camping is successful, the eMBMS reception is resumed, and the process ends. If the camping fails, the process jumps to step 805.

Step 805: The UE attempts to camp at other frequency points in the USD. If the camping is successful, the eMBMS reception is resumed, and the process ends; if the camping fails, then the process proceeds to step 806.

Step 806: The UE attempts to camp on the remaining frequency points in the SIB 15. If the camping is successful, the eMBMS reception is resumed, and the process ends; if the camp fails, then the process goes to step 807.

Step 807: The UE attempts to camp at the remaining frequency points of the full frequency band. If the resident is successful, the eMBMS reception is resumed, and the process ends. If the resident fails, the upper AP is notified, and the eMBMS is suspended. Reception of eMBMS.

Fourth embodiment

The method of the embodiment of the present invention is further illustrated on the basis of the first embodiment of the present invention.

FIG. 9 is a schematic structural diagram of a device for continuously receiving according to an embodiment of the present invention. As shown in FIG. 9, the device includes an obtaining module 900 and a reselecting module 901;

The obtaining module 900 is configured to acquire SAI information of each neighboring cell of the cell in which the UE resides.

The reselection module 901 is configured to reselect to the target cell corresponding to the eMBMS being received when determining that there is a target cell corresponding to the eMBMS being received based on the acquired SAI information.

The obtaining module 900 is further configured to perform neighbor cell measurement after acquiring the SAI information of each neighboring cell of the cell in which the UE resides, and determine, according to the neighboring cell measurement result, that the target cell that meets the reselection condition exists, according to the neighboring cell The area measurement result and the acquired SAI information determine whether there is a target cell corresponding to the eMBMS being received in the target cell that satisfies the reselection condition.

The reselection module 901 is further configured to select, when the target cell that meets the reselection condition does not exist and the cell in which the UE resides no longer satisfies the camping condition, select a frequency point corresponding to the eMBMS to be camped.

Each of the neighboring cells of the cell in which the UE resides includes at least one of the following: a cell in the same-frequency cell list in the SIB4, and a cell in the inter-frequency cell list in the SIB5.

In this embodiment, the acquisition module 900 and the reselection module 901 in the continuously received device can be processed by the central processing unit (CPU) in the continuously received device in the actual application. (DSP, Digital Signal Processor) or Programmable Gate Array (FPGA) implementation.

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

The units described above 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. The party may also 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 in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code.

Alternatively, the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.

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.

Industrial applicability

The technical solution of the embodiment of the present invention obtains the SAI information of each neighboring cell of the cell in which the UE is located, and determines, according to the acquired SAI information, that there is a target cell corresponding to the eMBMS being received, and reselects to the eMBMS that is being received. Corresponding target cell; in this way, the UE can accurately reselect to the target cell corresponding to the eMBMS currently being received, thereby ensuring continuous reception of the eMBMS and improving the user experience.

Claims

A method of continuous reception, the method comprising:

Obtaining service area indication SAI information of each neighboring cell of the cell in which the user terminal UE camps;

When it is determined that the target cell corresponding to the enhanced multimedia broadcast multicast service eMBMS that is being received is present, the reselected to the target cell corresponding to the eMBMS service being received.
The method according to claim 1, wherein the acquiring the SAI information of each neighboring cell of the cell in which the UE camps includes: setting, in the SIB, SAI information of each neighboring cell of the cell in which the UE resides, The base station sends the SIB to the UE, and the UE acquires SAI information of each neighboring cell of the cell in which the UE resides by receiving the SIB.
The method according to claim 2, wherein the setting the SAI information of each neighboring cell of the cell in which the UE resides in the SIB comprises: according to the correspondence between the original frequency point and the cell list in the SIB, and the SIB15 Corresponding relationship between the original frequency point and the SAI information, and setting the correspondence between the cell and the SAI information in the SIB 15;

The corresponding relationship between the original frequency point and the cell list in the SIB includes at least one of the following: a correspondence between the SIB4 intermediate frequency point and the same-frequency cell list, and a correspondence between the SIB5 intermediate frequency point and the different-frequency cell list.
The method according to claim 1, wherein after acquiring the SAI information of each neighboring cell of the cell in which the UE is camped, the method further comprises: the UE performing the neighbor cell measurement, determining that the presence satisfaction is based on the neighboring cell measurement result When the target cell is selected, the neighboring cell measurement result and the acquired SAI information are used to determine whether there is a target cell corresponding to the eMBMS being received in the target cell that satisfies the reselection condition.
The method according to claim 4, wherein the method further comprises: if there is no target cell that satisfies the reselection condition and the cell in which the UE camps becomes no longer satisfying the camping condition, The UE selects a frequency point currently corresponding to the eMBMS to be camped on.
The method according to any one of claims 1 to 5, wherein each neighboring cell of the cell in which the UE camps includes at least one of the following: a cell in the same-frequency cell list in SIB4, and an inter-frequency cell in SIB5. The cell in the list.
A continuously receiving device, the device comprising: an acquisition module and a reselection module; wherein

The acquiring module is configured to acquire service area indication SAI information of each neighboring cell of the cell where the user terminal UE is camped;

The reselection module is configured to reselect to the target cell corresponding to the eMBMS being received when determining that there is a target cell corresponding to the eMBMS being received based on the acquired SAI information.
The apparatus according to claim 7, wherein the acquiring module is further configured to perform neighboring area measurement after acquiring SAI information of each neighboring cell of the cell in which the UE resides, and determine that the presence is satisfied based on the neighboring area measurement result. When the target cell of the reselection condition is used, it is determined whether there is a target cell corresponding to the eMBMS being received in the target cell that satisfies the reselection condition according to the neighboring cell measurement result and the acquired SAI information.
The apparatus according to claim 8, wherein the reselection module is further configured to select to receive when a target cell that satisfies a reselection condition does not exist and a cell in which the UE camps no longer satisfies a camping condition The frequency corresponding to the eMBMS resides.
The apparatus according to any one of claims 7 to 9, wherein each neighboring cell of the cell in which the UE camps includes at least one of the following: a cell in a co-frequency cell list in SIB4, and an inter-frequency cell in SIB5. The cell in the list.
A computer storage medium having stored therein computer executable instructions for performing the method of continuous reception of any one of claims 1 to 6.