CN107005903A

CN107005903A - Method and its device for sending and receiving the data of transmission more than single cell

Info

Publication number: CN107005903A
Application number: CN201680004054.2A
Authority: CN
Inventors: 洪成杓; 崔宇辰
Original assignee: KT Corp
Current assignee: KT Corp
Priority date: 2015-01-08
Filing date: 2016-01-05
Publication date: 2017-08-01
Anticipated expiration: 2036-01-05
Also published as: CN107005903B; KR20160086276A; KR101818833B1

Abstract

The present invention relates to the technology for transmitting data single cell for sending and receiving more.More particularly, the present invention relate to the method and apparatus of point-to-multipoint transmission are provided in single subdistrict in the mobile communication network.Especially, the invention provides a kind of device and a kind of method, it the described method comprises the following steps：The system information for transmitting single cell is received in main plot (PCell) more；Control information being transmitted in main plot the single cell of reception more；And check whether neighbor cell provides transmission more than single cell using transmission control information more than single cell.

Description

Method and its device for sending and receiving the data of transmission more than single cell

Technical field

The present invention relates to it is a kind of be used to send and receive the technologies of data is transmitted single cell more.More specifically, it is of the invention It is related to the method and apparatus for providing point-to-multipoint transmission in single subdistrict in the mobile communication network.

Background technology

3GPP Long Term Evolutions (LTE) employ group communication system enabler (GCSE), so as to need urgency communication (for example Public disaster) when to multiple UE send data.

However, 3GPP versions 12 use multicast broadcast multimedia service (MBMS) to enable one group of UE to receive group Communication.

MBMS is designed in the region (for example, MBSFN regions) preplaned on a large scale provide matchmaker for mobile TV Hold in vivo.MBSFN regions are static to a certain extent.In addition, MBSFN regions can not dynamically be adjusted according to user distribution It is whole.MBMS transmission takes whole system bandwidth.Even if in addition, not in frequency domain using whole Radio Resources, MBMS transmission does not permit Perhaps unicast and multiplexing are carried out in same subframe.

As noted previously, as MBMS takes whole system bandwidth and be static, thus can not according to the quantity of group or Traffic loads are dynamically adjusted.This causes the inefficiency when base station is to multiple UE transmissions group communication datas.

The content of the invention

Technical problem

Basic invention proposes that its object is to propose when multiple UE's in including single subdistrict in view of the above problems Group send and from the group receive many transmission data when for dynamically sent and received by PDSCH many transmission data methods and Device.

The present invention, which is also aimed to, proposes that the group communication service occurred due to movements of the UE from cell to cell can be minimized The method and apparatus for sending and receiving many transmission data while interruption by PDSCH.

Technical scheme

In order to solve the above problems, being used to user equipment (UE) the invention provides one kind and receive transmit data single cell more Method, methods described includes：The system information for transmitting single cell is received in main plot (PCell) more；In main plot Control information being transmitted the middle single cell of reception more；And whether come neighbor identification using the control information of transmission more than single cell Transmission more than single cell is provided.

In addition, for base station sending the method that data are transmitted single cell the invention provides a kind of, methods described includes more： The system information for transmitting single cell is sent in main plot (PCell) more；Control information being transmitted the single cell of generation more；And The control information of transmission more than single cell is sent to UE in the main plot.

The present invention also provides a kind of UE devices for being used to receive and transmitting data more single cell, and the UE devices include：Receive Unit, is configured as receiving the system information for transmitting single cell more in main plot (PCell) and is received in main plot Control information being transmitted single cell more；And control unit, transmission control information more than single cell is configured with to recognize Whether neighbor cell provides transmission more than single cell.

In addition, the present invention provides a kind of base station apparatus for being used to send and transmitting data more single cell, the base station apparatus bag Include：Control unit, is configurable to generate single cell more and transmits control information；And transmitting element, it is configured as in main plot (PCell) send the system information for transmitting single cell in more, and by transmission control letter more than single cell in main plot Breath is sent to UE.

Beneficial effect

As described above, the present invention can dynamically be sent by multiple UEs of the PDSCH in including single subdistrict group and Many transmission data are received from the group, so as to provide the effect that Radio Resource is efficiently used.

In addition, the invention provides can minimize the group communication service caused by movements of the UE from cell to cell The effect of many transmission data is sent and received while interruption by PDSCH.

Brief description of the drawings

Fig. 1 shows the mapping between descending transmission channel and down physical channel；

Fig. 2 shows the mapping between downlink logical channel and descending transmission channel；

Fig. 3 shows the structure of layer two for the downlink for being configured with carrier aggregation (CA)；

Fig. 4 shows the operation of the user equipment (UE) according to an embodiment of the invention；

Fig. 5 shows the operation of the UE according to another embodiment of the present invention；

Fig. 6 shows the operation of the UE according to another embodiment of the invention；

Fig. 7 shows the operation of the base station according to an embodiment of the invention；

Fig. 8 shows the UE of the further embodiment according to present invention configuration；With

Fig. 9 shows the configuration of the base station of the further embodiment according to the present invention.

Embodiment

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.Part is added in each accompanying drawing Plus during reference, if it would be possible, identical part will be indicated by the same numbers (although they are in difference Accompanying drawing in show).In addition, in the following description of the present invention, when it is determined that known function and configuration to being incorporated herein When detailed description may be such that the subject of the present invention does not know very much, will omit these and be described in detail.

In this manual, MTC terminal can refer to support the terminal of inexpensive (or low complex degree), support coverage Enhanced terminal etc..In this specification, MTC terminal, which can refer to refer to, supports inexpensive (or low complex degree) or support coverage Enhanced terminal etc..Or, in this specification, MTC terminal refer to be defined for maintain inexpensive (or low complex degree) and/ Or the enhanced predetermined classification of coverage.

In other words, in this manual, MTC terminal can refer to perform MTC associative operations, new fixed based on LTE Low cost (or low complex degree) UE of 3GPP versions 13 classifications/type of justice.Or, in this manual, MTC terminal can refer to In 3GPP versions 12 or before define, support enhanced coverage compared with existing LTE coverages or support low work( UE classifications/type of consumption, or low cost (or low complex degree) UE classifications/type of version 13 newly defined can be referred to.

Wireless communication system can provide various communication services with widespread deployment, such as voice service, grouped data.Nothing Line communication system can include user equipment (UE) and base station (BS or eNB).Throughout the specification, user equipment can be bag The concept containing property, represents that the user terminal used in radio communication, including WCDMA (WCDMA), LTE, high-speed packet connect Entering the UE (user equipment) in (HSPA) etc. the and MS (mobile station) in global system for mobile communications (GSM), UT, (user is whole End), SS (subscriber station), wireless device etc..

Base station or cell can generally refer to the station communicated with user equipment (UE), and can also be referred to as Node-B (node-b), evolved Node-B (eNB), sector, website, base station transceiver system (BTS), access point, via node, Long distance wireless dateline (RRH), radio unit (RU), cell etc..

That is, base station or cell can be understood as inclusive concept, represent that (base station is controlled by the BSC in CDMA Device), the part in the region of covering or the function such as the eNB in Node B, LTE in WCDMA or sector (website), and this is general Read can include various overlay areas, such as million cells, macrocell, Microcell, picocell, Femto cell, via node, RRH, RU, communication range of cell etc..

Each in above-mentioned each cell has the base station of control respective cell, therefore, base station can by two ways come Explain：I) base station can be to provide million cells associated with wireless zone, macrocell, Microcell, picocell, Femto cell With the equipment of cell in itself；Or ii) base station can refer to wireless zone in itself.There is provided the dress of predetermined wireless zone in i) Putting can be controlled by same entity or interactively with each other can be referred to as base station with all devices of the collaborative configuration wireless zone.Base In the Configuration Type of wireless zone, eNB, RRH, antenna, RU, low power nodes (LPN), point, transmission/receiving point, sending point, connect Sink etc. can be the embodiment of base station.In ii) in, for terminal or the angle of adjacent base station, receive or send signal Wireless zone can be referred to as base station in itself.

Therefore, million cells, macrocell, Microcell, picocell, Femto cell, cell, RRH, antenna, RU, LPN, Point, eNB, transmission/receiving point, sending point and receiving point are collectively referred to as base station.

In this manual, user equipment and base station are used as two inclusive transmitting-receiving objects to implement described in specification Technology and technological concept, and predetermined term or word can be not limited to.In this manual, user equipment and base station by with Make two (uplink and downlink) inclusives and receive and dispatch object to implement the technology and technological concept described in specification, and can not It is limited to predetermined term or word.Here, up-link (UL) refers to that be used for UE sends data and base station from UE reception numbers to base station According to scheme, and downlink (DL) refers to send the scheme that data and UE receive data from base station to UE for base station.

Various Multiple Access schemes applied to wireless communication system can be with unrestricted.Various Multiple Access schemes can be used, are wrapped Include CDMA (CDMA), TDMA (time division multiple acess), FDMA (frequency division multiple access), OFDMA (OFDM), OFDM-FDMA, OFDM-TDMA, OFDM-CDMA etc..Embodiments of the present invention go for being evolved into by GSM, WCDMA and HSPA Resource allocation in LTE and LTE-A asynchronous wireless communication scheme, and go for by CDMA, CDMA-2000 It is evolved into the resource allocation in UMB sychronous wireless communication scheme.The present invention can be not limited to specific wireless communication field, and Technological thought all technical fields applicatory of the present invention can be included.

It can be carried out according to TDD (time division duplex) schemes being transmitted based on different time or according to based on different frequency FDD (FDD) schemes of transmission perform uplink and downlink transfer.

In addition, in the system such as LTE and LTE-A, can be by based on single carrier wave or a pair of carrier wave collocating uplinks Link and downlink develop standard.Up-link and downlink can pass through control channel such as PDCCH (physical down controls Channel processed), PCFICH (Physical Control Format Indicator Channel), PHICH (physical mixed ARQ (HARQ) indicate letter Road), PUCCH (Physical Uplink Control Channel), EPDCCH (enhancing Physical Downlink Control Channel) etc. send control information, and Data channel can be configured as such as PDSCH (Physical Downlink Shared Channel), PUSCH (Physical Uplink Shared Channel), from And send data.

EPDCCH (enhancing PDCCH or extension PDCCH) can be used to send control information.

In this manual, cell can refer to the coverage of the signal sent from transmission/receiving point, with from hair Give/receiving point (sending point or transmission/receiving point) send signal coverage component carrier or transmission/receiving point sheet Body.

Refer to that two of which or more transmission/receiving point collaboration sends signal according to the wireless communication system of embodiment Collaboration multiple spot transmission/reception (CoMP) system, collaboration multi-aerial transmission system or coordinating multi-cell communication system.CoMP systems System can include transmission/receiving point and terminal more than at least two.

Many transmission/receiving points can be base station or macrocell (hereinafter referred to as " eNB ") and by optical cable or optical fiber It is connected to eNB and is had line traffic control and there is at least one RRH of high transmit power or low transmit power in macrocell area.

Hereinafter, downlink refers to the communication from many transmission/receiving points to terminal or communication path, and up-link Refer to from terminal to the communication of many transmission/receiving points or communication path.In the downlink, emitter can be sent/connect more A part for sink, and receiver can be a part for terminal.In the uplink, emitter can be one of terminal Point, and receiver can be a part for many transmission/receiving points.

Hereinafter, situation about being sent and received signal by PUCCH, PUSCH, PDCCH, PDSCH etc. can be by such as It is lower to express to describe：" send or receive PUCCH, PUSCH, PDCCH or PDSCH ".

In addition, hereinafter, expression " send or receive PDCCH or signal is sent or received by PDCCH " includes " sending Or receive EPDCCH or signal is sent or received by EPDCCH ".

That is, Physical Downlink Control Channel used herein can refer to PDCCH or EPDCCH, and can be with Refer to the implication for including both PDCCH and EPDCCH.

In addition, for the ease of description, EPDCCH corresponding with embodiments of the present invention can be applied to use PDCCH The part of description, and applied to the part described using EPDCCH.

Meanwhile, in the description, high-level signaling includes sending the RRC signaling for the rrc message for including RRC parameters.

ENB performs the downlink transfer for pointing to terminal.ENB can send the thing as the primary physical channel for unicast transmission DSCH Downlink Shared Channel (PDSCH) is managed, can also be sent for sending Downlink Control Information (such as receiving the scheduling needed for PDSCH) With the physical down of the scheduling grant information for sending uplink data channels (for example, Physical Uplink Shared Channel (PUSCH)) Control channel (PDCCH).Hereinafter, being sent and received signal by each channel will be described as sending and receiving accordingly Channel.

The present invention relates to for sending and receiving the method and apparatus that data are transmitted single cell more.

In traditional E-UTRAN, group UE needs to use static region or static radio-resource-configuration to use multimedia Broadcast/multicast service (MBMS) receives a group communication data (Downlink multicast or multicast)., can in order to eliminate this poor efficiency To consider the method for receiving same downlink data by PDSCH in a multicast mode.Pass through however, not yet providing for multiple groups of UE PDSCH receives the specific procedure of downlink data.In addition, may be independent by the PDSCH methods for receiving descending group of communication data Ground is performed in each cell, therefore when the mobile change cell by UE, it is impossible to ensure service continuity.On solving Problem is stated, the present invention is intended to provide receiving the method and apparatus of descending group of communication data by PDSCH.In addition, the present invention is provided Communicated while the service disconnection occurred due to the UE movement from cell to cell can be minimized by PDSCH receptions group The method and apparatus of data.

Fig. 1 shows the mapping between descending transmission channel and down physical channel.With reference to Fig. 1, PDSCH physical channels are worked as Before can be only used for carrying DL-SCH (DSCH Downlink Shared Channel) transmission channels and PCH (PCH) transmission channel.

Fig. 2 shows the mapping between downlink logical channel and descending transmission channel.With reference to Fig. 2, DL-SCH transmission channels It may map to BCCH (BCCH) logic channel, CCCH (CCCH) logic channel, DCCH (special controls Channel) logic channel and DTCH (dedicated transport channel) logic channels and it is transmitted.

PCCH is used to send paging information and system information change notification.For example, in order to which idle pulley UE receives paging, when UE wakes up and detected P (the paging)-RNTI for addressed page message sent on PDCCH in corresponding paging occasion When (Radio Network Temporary Identifier), UE can be handled the corresponding downlink page message sent to receive on PCH.

BCCH is used for broadcast system control information.For example, the Master Information Block (MIB) on BCCH logic channels is mapped to BCH is simultaneously sent by PBCH.In another example, the system information block (SIB) in addition to SIB1 on BCCH logic channels System information (SI message) is mapped to, and is sent by DL-SCH.SIB in addition to SIB1 is mapped to SI message It is flexible, and indicated by SIB1.UE needs to obtain SIB1 to recognize how other SIB are scheduled.Each SIB is included in list In individual SI message, and single SI message can include multiple SIB with same period.SI message is dynamically scheduled.SI Message can be sent in the referred to as periodic time window of SI windows.Each SI message and a SI windows associate, and Other SI message are broadcasted on other non-overlapped SI windows.When broadcasting SIB1 and SI message on DL-SCH, with DL-SCH The PDCCH of association is addressed using single SI (system message)-RNTI to the SIB1 in a cell and all SI message.UE exists The SI-RNTI on PDCCH is decoded in SI windows, to obtain the detailed scheduling of the system information in SI windows.

CCCH is used to send the control information with the Stochastic accessing connection without the RRC UE being connected.Can repeatedly it connect The RRC information on CCCH is received, because MAC HARQ re-transmissions can be performed.

DCCH is the point-to-point channel for sending dedicated control information to the UE connected with RRC.DTCH is to be exclusively used in UE point-to-point channel, for sending user profile.

The descending distribution of PDCCH reception that UE has carried out mask by using UE C-RNTI.Descending distribution indicates HARQ information With the information of the Radio Resource on the PDSCH on being distributed.

Fig. 3 shows the structure of layer two for the downlink for being configured with carrier aggregation (CA)

As set forth above, it is possible to receive the public affairs for specific UE specific information and for specific UE using PDSCH Co-information.For this reason, it may be necessary to UE UE unique identifiers (for example, C-RNTI).In addition, PDSCH can be used for receiving for all UE or one group of UE paging information and public information.For this reason, it may be necessary to common group identifier (for example, P-RNTI and SI-RNTI). In E-UTRAN, FFFE is used as P-RNTI values and FFFF is used as SI-RNTI values.

In the description of this specification, by by one cell between the UE that specific group includes share PDSCH radio resources send data and are referred to as transmission (single-cell multi-transmission) more than single cell, and will By in one cell between the UE that specific group includes share PDSCH Radio Resources send downlink Multicast data, Multicast packet or group communication data are referred to as transmitting data single cell more.In addition, number will be sent and received by transmission more than single cell According to communication pattern be referred to as group communication.

Group unique identifier (the groups-specific of data is transmitted single cell in addition, specific group will be distributed to and be used to send more RNTI) it is referred to as a group identification information (group RNTI：G-RNTI).UE service referred to as group communication service will be supplied to by group communication, And group communication service identification information will be referred to as recognizing each group communication service, group communication sessions or organizing the information of communication carrier (Temporary Mobile Group Identity：TMGI).In addition, by the UE of desired carry out group communication, to wanting to carry out what is transmitted by single cell more The UE that the UE of group communication and can carrying out is transmitted single cell more is referred to as wanting the UE of carry out group communication.

Meanwhile, UE needs the information for recognizing many transmitting control messages of single cell sent by base station, and the information is determined Justice is list cell-RNTI (SC-RNTI).UE can use SC-RNTI and transmit control information single cell more to recognize.Single cell is more Transmitting control message includes the control information transmitted for single cell more.

It is to understand for convenience rather than restricted purpose to provide above-mentioned term.

Wanting the UE of carry out group communication can be known by application server (for example, GCS AS or BM-SC) for recognizing Want the TMGI of specific group communication service carried out.Or, it can be pre-configured with UE and want the specific of progress for recognizing The TMGI of group communication service.

For the downlink transfer of group communication service, MBMS can be used, one in transmission and unicast bearer more than single cell. In addition, for uplink, unicast bearer can be used.

When using MBMS, being pre-configured in MBMS carrying of the broadcast/multicast service center (BM-SC) between base station can For setting up group communication service/session/carrying.Or, can be according to from group communication service application server (GCS AS) Request, the MBMS that program is configured to use between BM-SC and eNB is carried by the MBMS of activation and carried.For recognizing The TMGI of the descending MBMS carrying services of group communication, the MBMS session identifications (ID) for recognizing each MBMS sessions, MBSFN areas Domain identification information and for recognize group communication service/session/carrying downstream service/session/carrying identification information in one It is individual or it is multiple can by BM-SC, GCS AS or another evolved packet systems (EPS) entity be allocated, it is possible to pass through control The EPS entities of group communication are (for example, GCS AS, IMS (IP multimedia subsystem), PCRF ("Policy and Charging Rules Function), other EPS entities) or by controlling the EPS entities of registration (or certification or verification) to be provided to UE.In order that being received with MBMS is used for The downlink transfer of group communication, the EPS entities or control that UE can communicate in GCS AS, control group is registered (or certification or verification) Registered in EPS entities.According to another method, pre-configured in UE it can be used to recognize the descending MBMS carryings for being used for group communication The TMGI of service, the MBMS session identifications (ID) for recognizing each MBMS sessions, MBSFN Area Identification informations and logical for organizing The group identification information of letter.When the EPS entities that GCS AS or control group communicate determine to provide in specific cell by MBMS to be used for During the downlink transfer of group communication, GCS AS, the EPS entities of control group communication or control registration (or certification or verification) EPS are real Body can start the MBMS sessions with base station by BM-SC.

When using transmitting single cell, base station is distributed G-RNTI and taken with providing specific group communication by transmission more than single cell more Business.G-RNTI can be associated with TMGI.Or, G-RNTI can be associated with TMGI and/or MBMS session ids.Or, G-RNTI It can be associated with the downstream service of group communication service.Or, G-RNTI can with for recognizing group communication service/session/carrying Downstream service/session/carrying identification information association.

Fig. 4 shows the operation of the UE according to an embodiment of the invention.

The invention discloses a kind of method, transmitting data the single cell of wherein UE receptions, it is included in main plot (PCell) more It is middle receive for transmitting single cell more system information, receive in PCell and to transmit the information of control single cell more and use Transmit control information more single cell and come whether neighbor identification provides transmission more than single cell.

With reference to Fig. 4, UE receives the system information (step S410) for transmitting single cell more in PCell.For example, base station Can be by sending the system information for transmitting single cell for the PCell that UE is configured more, and UE can receive this is used for list The system information transmitted cell more.For example, base station can be by system information broadcast on transmitting single cell more information.Specifically Ground, base station can pass through system information broadcast G-RNTI.Or, base station can be closed by system information broadcast TMGI and with TMGI The G-RNTI of connection.Or, base station can be used for the descending clothes for recognizing group communication service/session/carrying by system information broadcast The identification information of business/session/carrying and the G-RNTI associated with the identification information.In another example, base station can be by being System information is broadcasted includes the information of transmission control information more than G-RNTI single cell for receiving.Or, base station can be by being System information broadcasts the information for receiving transmission control information more than the G-RNTI single cell for including TMGI and being associated with TMGI.Or Person, base station can be used to receive the descending clothes for including being used to recognize group communication service/session/carrying by system information broadcast The identification information of business/session/carrying to transmit the letter of control information the G-RNTI associated with the identification information single cell more Breath.Therefore, UE can be recognized for a group G-RNTI for communication.Whether UE can recognize cell by reception system information The group communication service provided by the cell being transmitted and recognizing the single cell of offer more.

In addition, UE is received in PCell transmits control information (step S420) single cell more.The control letter of transmission more than single cell Breath can be scheduled more by the system information for transmitting single cell.For example, UE can in step S410 reception system Information, is used to send cycle and the skew of the control information of transmission more than single cell for recognizing.Pass through that is, UE can be received Control information being transmitted single cell of scheduling system information more.

Meanwhile, the control information of transmission more than single cell can include the letter for the neighbor cell transmitted on the single cell of offer more Breath.Or, control information is transmitted single cell to be included on the information for the group communication service that can be provided by each cell more. Or, control information is transmitted single cell can include the corresponding informance of the matching on group communication service and neighbor cell more.Example Such as, transmitted single cell more control information can include on the neighbor cell transmitted single cell is provided more cell identification information, At least one in TMGI and information on providing the neighbor cell transmitted single cell for being associated with G-RNT more.Therefore, UE can To obtain the information of the neighbor cell on providing the group communication service for wanting to carry out.Or, UE can recognize single on providing The information for the neighbor cell transmitted cell more.Control information is transmitted single cell to be instructed to by PDCCH more.

In addition, UE transmits (step single cell more using whether the neighbor identification of transmission control information more than single cell provides S430).UE can use the control information of transmission more than the single cell received to come whether neighbor identification provides biography more than single cell It is defeated.Or, the group communication service type that UE can be provided with neighbor identification.Or, UE can recognize that offer UE wants to carry out Group communication service neighbor cell.Or, UE can recognize the cell for providing and transmitting single cell more.Therefore, UE can be recognized Whether neighbor cell provides transmission more than single cell, or whether provides the group communication that UE wants to carry out, without checking on adjacent The system information of cell.

Meanwhile, UE can use G-RNTI to receive single cell more and transmit data.For example, UE can pass through PDSCH radio Data being transmitted the single cell of resource reception more.It can also pass through shared PDSCH Radio Resources with the other UE of UE in the same set Data are transmitted the single cell of reception more, and UE can receive the schedule information on PDSCH by PDCCH region, so as to pass through Data being transmitted the single cell of PDSCH Radio Resources reception more.Meanwhile, UE can use the G-RNTI of distribution to recognize biography more than single cell Whether transmission of data wants the group communication service of progress on UE.

As described above, the UE of the present invention can receive transmission more than single cell on group communication service by PDSCH region Data, and whether transmission more than single cell can be provided by serving cell neighbor identification.UE can identify whether to provide Transmit single cell more or whether provide group communication service, so as to transmit data the continuous single cell of reception in movement more.

Fig. 5 shows the operation of the UE according to another embodiment of the present invention.

When transmitting neighbor cell does not provide single cell, UE of the invention can ask to receive a group communication by unicast more Service.

Referring to Fig. 5, above with reference to described in step S410 to S430, UE of the invention can be received in PCell for single The system information (step S510) transmitted cell more, and can be received in PCell and transmit control information (step single cell more S520).Base station can pass through system information broadcast G-RNTI.Or, base station can by system information broadcast TMGI and with The G-RNTI of TMGI associations.Or, base station can be used to recognize group communication service/session/carrying by system information broadcast The identification information of downstream service/session/carrying and the G-RNTI associated with the identification information.In another example, base station can be with The information of control information is transmitted the single cell for including G-RNTI for receiving by system information broadcast more.Or, base station can be with It is used to receiving the G-RNTI single cell for including TMGI and being associated with TMGI by system information broadcast more and transmits control information Information.Or, base station can be broadcasted for receiving the downstream service/meeting for including being used to recognize group communication service/session/carrying The information of control information is transmitted the identification information of words/carrying and the G-RNTI associated with the identification information single cell more.

Control information being transmitted by being dispatched for the system information transmitted single cell single cell more more.For example, UE Cycle and deviant for sending the control information of transmission more than single cell etc. can be recognized with reception system information.That is, UE can transmit control information single cell more being received by the time of scheduling system information.Meanwhile, the control letter of transmission more than single cell Breath can include the information for the neighbor cell transmitted on the single cell of offer more.Or, transmit control information single cell can be with more Include the information of the group communication service on that can be provided by each cell.Or, control information is transmitted single cell to wrap more Include the information on the corresponding relation between group communication service and cell.For example, transmission control information can include more than single cell On providing the cell identification information of the neighbor cell transmitted single cell, TMGI and small on providing the list that is associated with G-RNTI more At least one in the information for the neighbor cell transmitted more in the area.

Whether UE can use the control information of transmission more than single cell to come neighbor identification and provide to transmit (step single cell more S530).UE can use transmission control information more than single cell of reception to come whether neighbor identification provides transmission more than single cell. Or, the group communication service type that UE can be provided with neighbor identification.Or, UE, which can be recognized, provides the group that UE wants to carry out The neighbor cell of communication service.Or, UE can recognize the cell for providing and transmitting single cell more.

When transmitting neighbor cell does not provide single cell, UE can ask to receive by unicast before cell change more Group communication service (step S540).For example, as the result of identification control information, when the UE neighbor cells for wanting to move to are not provided When being transmitted the single cell for the group communication service that progress is wanted for UE, UE can be directly by GCS AS to the group by unicast more Communication service makes requests on.For example, when in Pcell by transmission receives group communication service more than single cell when, UE can be asked Pass through the group communication service of unicast.In another example, the UE of RRC connections can be directly by GCS AS to passing through unicast Group communication service makes requests on.In another example, RRC- idle UEs can set up RRC connections, may then pass through GCS AS asks the group communication service by unicast.The end-to-end delay transmitted using the media of unicast bearer is about 40ms.Meanwhile, make The end-to-end delay transmitted with MBMS MRB (MBMS point-to-multipoints radio bearer) media is about 160ms.Therefore, in order to provide Service continuity, if the neighbor cell that UE wants to move to does not support transmission more than single cell, even if MBMS is supported in neighbor cell (or the MBSFN of same services is communicated or provided by MBMS group), UE can also ask the service by unicast first, so as to subtract Few service disruption.Then, UE moves to Target cell, and can receive group communication service by MBMS.

Fig. 6 shows the operation of the UE according to another embodiment of the invention.

The UE of the present invention can be by performing more to the frequency assigned highest priority for providing the cell transmitted single cell Cell reselection procedures.

With reference to Fig. 6, as described in above with reference to Fig. 4 and Fig. 5, UE can be received for transmitting single cell more in PCell System information (step S610), and can be received in PCell and transmit control information (step S620) single cell more.UE can be with Pass through received control information and transmit (step S630) single cell more come whether neighbor identification provides.

RRC- idle UEs can be by performing more to the frequency assigned highest priority for providing the cell transmitted single cell Cell reselection procedures (step S640).UE can be received in PCell and be transmitted data single cell more.Or, UE, which can move to, to be carried Data being transmitted for the neighbor cell transmitted single cell single cell to receive more more.In this case, UE can perform cell To providing the frequency assigned highest priority of the cell transmitted single cell during gravity treatment more.For example, in cell reselection, with switching not Together, detect and select frequency according to the priority of frequency is distributed to.Accordingly, it is possible to can occur or expected using single cell The UE that many transmission receive group communication service selects not provide single small in cell reselection according to the priority of each frequency is distributed to The problem of cell transmitted more in the area.In order to solve this problem, UE can want to carry out in cell reselection procedures to providing UE Or the cell assigned highest priority of the group communication service received, so as to prevent group communication service because of cell reselection procedures It is interrupted.Specific priority distribution method described in detail below.

Hereinafter, the UE of the present invention and the behaviour of base station is described in detail into Fig. 6 in Fig. 4 with reference to embodiment Make.

Base station can be by system information broadcast on transmitting single cell more information.For example, base station can broadcast G- RNTI.In another example, base station can broadcast TMGI and the G-RNTI associated with TMGI.In another example, base station can be with Broadcast downstream service/session/carrying for recognizing group communication service/session/carrying identification information and with the identification information The G-RNTI of association.In another example, base station can broadcast transmission control letter more than the single cell for including G-RNTI for receiving The information of breath.In another example, the list that base station can broadcast the G-RNTI for including TMGI for reception and being associated with TMGI is small Transmitting the information of control information more in the area.In another example, base station can be broadcasted includes being used for identification group communication clothes for receiving The identification information of downstream service/session/carrying of business/session/carrying and the G-RNTI associated with the identification information single cell The information of many transmission control information.Therefore, it is desirable to which carrying out the UE of corresponding group communication can recognize corresponding to group communication service G-RNTI。

When receive (or receiving) by transmitting that the specific group of transmission communicates single cell more it is downlink transfer, want into When the UE of row group communication moves (or moving or move to another base station cell between the base stations) between cells, it is desirable to provide Service continuity is to reduce service disruption.The method that service continuity is provided in each scene is as described below.

Scene 1：UE is moved to the cell for not supporting to transmit single cell from the cell for supporting to transmit single cell more more

When resting in cell-of-origin, UE can be based on many Transmission system information of single cell on neighbor cell and list The control information of many Transmission system information associations of cell or the control for whether supporting to transmit single cell for neighbor identification more Whether single cell more than transmission is supported in the neighbor cell that information moves to recognize UE to want.

When transmitting the UE neighbor cells for wanting to move to do not support single cell, UE can pass through single cell in cell-of-origin more The service that request passes through unicast while many transmission receive service.The UE of RRC connections directly can be passed through by GCS AS requests The service of unicast.RRC- idle UEs can set up RRC connections, may then pass through the service that GCS AS requests pass through unicast.

The end-to-end delay transmitted using the media of unicast bearer is about 40ms.Meanwhile, passed using MBMS MRB media The end-to-end delay sent about 160ms.Therefore, in order to provide service continuity, if the neighbor cell that UE wants to move to is not propped up Transmission more than single cell is held, even if then neighbor cell supports MBMS (or same services to be communicated or provided by MBMS group MBSFN), UE can also ask the service by unicast first, so as to reduce service disruption.Then, UE moves to Target cell, and Group communication service can be received by MBMS.

When as UE, transmission cell is moved to the cell for not supporting to transmit single cell more more than single cell, UE may undergo short Service disruption.As another method for avoiding or relaxing service disruption, when transmitting UE receives single cell more, cell-of-origin The data forwarding that (or source base station) will can be transmitted by BM-SC (or GCS AS or arbitrary group communication data transfers entity) Give Target cell (target BS).

For example, when Target cell/base station is received by BM-SC by cell-of-origin/base station, (or GCS AS or arbitrary groups are logical Letter data transmit entity) transmission group communication data when, target BS can send the data to UE.For example, target BS Data can be sent by transmission more than single cell.Received therefore, target BS can prepare message via switching from source base station And use G-RNTI., can be with the data forwarding tunnel of configuration data when preparing switching.In another example, target BS can Data are sent with the Data Radio Bearer by UE., can be with data forwarding of the configuration pin to the data during switching is prepared Tunnel.

Scene 2：UE moves to many transmitting cells of single cell from many transmitting cells of single cell

When resting in cell-of-origin, UE can be based on many Transmission system information of single cell on neighbor cell, with closing Whether the control information for the system information association transmitted in single cell supports transmission more than single cell more for neighbor identification The neighbor cell that is moved to recognize UE to want of control information whether support transmission more than single cell.

Hereinafter, the embodiment that service continuity is provided for RRC- idle UEs is described in detail.

According to a kind of method for providing service continuity for RRC- idle UEs, on neighbor cell or adjacent base station The many related transmitting informations of single cell of the specific group communication service/session/carrying of (hereinafter referred to as neighbor cell) can lead to X2 signalings (for example, X2 is set up and eNB config updates program) and/or Operations, Administration and Maintenance (OAM) is crossed to provide.

When receiving on many Transmission system information of single cell of neighbor cell, with single many Transmission system information associations of cell Control information or can neighbor identification when whether supporting the control information transmitted single cell more, base station can be by single small The many Transmission system information in area, the control information with single many Transmission system information associations of cell or can neighbor identification whether prop up Hold the control information transmitted single cell more and transmit information single cell on neighbor cell more to broadcast, so as to support UE service Continuity.

Information being transmitted single cell on neighbor cell included in above-mentioned X2 signalings and/or to be broadcast and can more Control information or use with many Transmission system information of the single cell provided by OAM or with many Transmission system information associations of single cell Whether supporting details included in the control information transmitted single cell to include cell and know in neighbor identification more The identification of other information, TMGI, G-RNTI and downstream service/session/carrying for recognizing group communication service/session/carrying is believed Breath.

The UE for wanting carry out group communication can be by said system information, with many Transmission system information associations of single cell control Whether information processed supports the control information transmitted single cell is avoided more in neighbor cell or adjacent for neighbor identification Single many Transmission system information of cell or related control information are read under frequency.Or, it is desirable to the UE of carry out group communication can pass through Whether said system information, the control information with many Transmission system information associations of single cell support list for neighbor identification The control information transmitted cell is known whether more to be transmitted the single cell of offer more, provides which kind of group communication service or provide based on single small Which kind of group communication service transmitted more in the area.

For example, it is desirable to which the UE of carry out group communication or the UE communicated by the group of transmission reception more than single cell can be searched by cell Physical-layer cell identification informations (PhysCellId) of the Suo Zhidao on neighbor cell.For example, physical-layer cell identification information can With the value with scope from 0 to 503.Therefore, the list when serving cell by system information broadcast in cell on neighbor cell When transmitting information cell, UE can avoid reading many Transmission system information of single cell on neighbor cell by the information more.

For example, when base station is broadcasted on transmitting single cell for specific group service/session/carrying more in the serving cells It is (for example, TMGI, GRNTI or identification/identification information on group communication service/session/carrying) and many on providing single cell The cell identification information of the neighbor cell of transmission is (for example, PhysCellId (Physical Cell Identifier) or CellIdentity (cells Mark)) mapping when, UE can be by obtaining the physical-layer cell of (or determine) in the cell search process to neighbor cell Identification information knows whether neighbor cell provides transmission more than single cell for specific group service/session/carrying, without reading System information on neighbor cell.

In another example of service continuity is provided for RRC- idle UEs, carried when wanting the cell (re-selecting cell) of gravity treatment During for for transmitting group single cell of communication, it is desirable to which the UE of carry out group communication or current receives group by transmission more than single cell more The RRC- idle UEs of communication, can be in cell reselection procedures to the cell or cell frequency distribution and current area or current small Area frequency zones identical priority.Even if for example, the cell reselection priority of the cell frequency is less than current service cell (or again Cell before choosing) frequency priority, UE can also be to the cell or cell frequency distribution and the priority of current area frequency Identical cell reselection priority.That is, can allow the cell that there is the specific gravity treatment priority of cell.

Or, when the cell (re-selecting cell) for wanting gravity treatment provide for group communication single cell more transmit when, it is desirable to carry out The RRC- idle UEs that the UE or current of group communication is communicated by transmission reception group more than single cell, can be right in cell reselection procedures Transmission provides frequency assigned highest priority more than the cell of wanting gravity treatment, the cell frequency for gravity treatment or single cell.Even if for example, should It is (or small before gravity treatment less than current service cell that transmission more than cell frequency or single cell provides the cell reselection priority of frequency Area) frequency priority, UE can also to the cell distribute highest cell reselection priority.That is, this can be allowed small Area has the specific gravity treatment priority of cell.

Or, when current area is provided for transmitting group single cell of communication more, it is desirable to which the RRC- of carry out group communication is empty The cell or cell frequency, can be considered as most by the RRC- idle UEs that not busy UE or current is communicated by transmission reception group more than single cell High priority.

Or, when re-selecting cell provides the MBMS transmission for group communication, it is desirable to which the RRC- of carry out group communication is idle The cell that provide MBMS, can be considered as most by the RRC- idle UEs that UE or current is communicated by transmission reception group more than single cell High priority.

When each frequency is allocated frequency specific cell gravity treatment priority, if UE is receiving MBMS or wanted Receive MBMS and can be resided in UE when MBMS is provided in frequency and receive MBMS, then UE can be by the frequency Rate is considered as the limit priority frequency in MBMS sessions.However, when using transmitting single cell, even if using identical frequency. more Rate, cell/base station may also be operating independently.In addition, the configuration of many transmission regions of single cell may not be according to frequency.Cause This, although serving cell frequency provides transmission more than single cell, but if the frequency is configured as being considered to be limit priority, Then it is very likely to the cell that gravity treatment does not provide respective sets communication.As described above, the present invention can be more by adjusting the single cell of offer The priority of the cell of transmission or the current cell that data are received by transmission more than single cell solves this problem.

Meanwhile, embodiment being illustrated below, wherein being passed in above-mentioned cell reselection procedures to providing single cell more The cell distribution cell reselection that defeated cell or offer UE wants to transmit the specific group communication service of progress by single cell more is excellent First level.

For example, when the UE for wanting carry out group communication is not received and transmitted single cell more, being used for if neighbor cell is provided Being transmitted single cell of group communication, then UE can will provide the cell transmitted single cell more and be considered as limit priority more.Therefore, when small Area meets Squal during time interval Treselection>Threshx, HighQ or Squal>When Threshx, HighP, UE Gravity treatment there can be the neighbor cell of higher priority in cell reselection procedures.Here, Threshx, HighQ and Threshx, HighP represents predetermined threshold value, and Squal refers to the value for representing cell reselection quality (referring to 3GPP TS.36.304, Section 5.2).

In another example, when the UE for wanting carry out group communication is not received to be transmitted single cell more, if neighbor cell There is provided for transmitting group single cell of communication, then UE can will provide the cell frequency that transmits single cell more to be considered as highest preferential more Level.Therefore, when the cell with higher priority frequency meets Squal during time interval Treselection> Threshx, HighQ or Squal>When Threshx, HighP, UE can be with adjacent higher than current area priority frequency of gravity treatment Cell.

In another example, when the UE for wanting carry out group communication is communicated by the group of transmission reception more than single cell, If neighbor cell is provided for transmitting group single cell of communication more, UE can will provide the cell transmitted single cell more and be considered as Limit priority.Therefore, when cell meets Squal during time interval Treselection>Threshx, HighQ or Squal>When Threshx, HighP, UE can have the neighbor cell of higher priority with gravity treatment.

In another example, when the UE for wanting carry out group communication is communicated by the group of transmission reception more than single cell, such as Fruit neighbor cell is provided for transmitting group single cell of communication more, then UE can will provide the preferential of the cell transmitted single cell more Level is considered as identical with the priority of current area.Therefore, (reference signal connects the grade or the RSRP of cell that UE can be based on cell Receive power) measure to carry out cell reselection.

In another example, when the UE for wanting carry out group communication is communicated by the group of transmission reception more than single cell, such as Fruit neighbor cell is provided for transmitting group single cell of communication more, then UE can will provide the cell frequency that transmits single cell more Priority is considered as identical with current area frequency priority.Therefore, for the frequency of current area or current area, UE can be with base Cell reselection is carried out in the cell frequency grade including current area frequency or the RSRP measurements based on cell.

Meanwhile, in order to maintain service continuity, when UE is resting on cell-of-origin (current area or the resident cells of UE) Control information by many Transmission system information of single cell on neighbor cell, with single many Transmission system information associations of cell or The control information for whether supporting to transmit single cell for neighbor identification, identifies that the neighbor cell that UE wants to move to is not propped up more Holding when transmitting single cell, UE can ask pass through the service of unicast by GCS AS more.For example, RRC- idle UEs can be set up RRC connections, may then pass through the service that GCS AS requests pass through unicast.

Hereinafter, the distribution to the above-mentioned G-RNTI of the present invention is illustrated.

For example, above-mentioned G-RNTI can be one of RNTI values FFF4-FFFC for currently preserving.

In another example, G-RNTI can be 0001-003C or 003D-FFF3.

In another example, in the case where distributing G-RNTI from multiple values, when distribution is used to provide specific group communication During the G-RNTI of service/session/carrying, G-RNTI can be distributed or selected in base station by coordinating with BM-SC or GCS AS.Cause This, can give specific group communication service/session/carrying distribution G-RNTI, to prevent from conflicting with other base stations or other cells.

According to another example, in the case where distributing G-RNTI from multiple values, when distribution is used to provide specific group communication During the G-RNTI of service/session/carrying, each base station can independently distribute G-RNTI, and in the event of any conflict, can So that G-RNTI is distributed or selected by coordinating.

According to another example, in the case where distributing G-RNTI from multiple values, when distribution is used to provide specific group communication During the G-RNTI of service/session/carrying, base station can be distributed or be selected G-RNTI by the coordination between base station.Therefore, can X2 signalings can be needed.

According to another example, in the case where distributing G-RNTI from multiple values, when distribution is used to provide specific group communication During the G-RNTI of service/session/carrying, base station can be calculated and be distributed G-RNTI based on the TMGI of association.UE can be with base G- is calculated and uses in TMGI being received by application server (for example, GCS AS or BM-SC) or being pre-configured with RNTI。

According to another example, in the case where distributing G-RNTI from multiple values, when distribution is used to provide specific group communication During the G-RNTI of service/session/carrying, base station can be based on for recognizing that the association of specific group communication service/session/carrying is known Other information calculates and distributed G-RNTI.UE is also based on being used to be identified by application server (for example, GCS AS or BM- SC the identification information of specific group communication service/session/carrying) receiving or being pre-configured with calculates and used G-RNTI.

According to another example, in the case where distributing G-RNTI from multiple values, base station can specify a RNTI (under Referred to herein as SC-RNTI) including transmitting control the mono- cells of G-RNTI of specific group communication service/session/carrying to broadcast to UE more Information processed.UE can be received on PDSCH on PDCCH using SC-RNTI indicate single cell more transmit control information.This Outside, UE can recognize the G- with specific group communication service/session/bearing association by transmission control information more than single cell RNTI。

The above-mentioned embodiment of the present invention can be provided either individually or in combination.

Therefore, the present invention can be provided by the PDSCH radio shared between the UE in specific group in one cell Source provides continuous service, though the movement of the UE due to receiving downlink Multicast/multicast/group communication data and occur cell and change Become, it may also reduce service disruption.

Fig. 7 shows the operation of the base station according to an embodiment of the invention.

The method that data are transmitted single cell being sent the invention discloses a kind of base station, it is included in main plot (PCell) more The middle system information sent for transmitting single cell more；Control information being transmitted the single cell of generation more；And will in the PCell Transmit control information more single cell and be sent to UE.

With reference to Fig. 7, base station can send the system information (step S710) for transmitting single cell more in PCell.Example Such as, base station can be by sending the system information for transmitting single cell for the PCell that UE is configured more, and UE can receive this For the system information transmitted single cell more.For example, base station can be by system information broadcast on transmitting single cell more letter Breath.Specifically, base station can pass through system information broadcast G-RNTI.Or, base station can by system information broadcast TMGI and The G-RNTI associated with TMGI.Or, base station can be used to recognize group communication service/session/carrying by system information broadcast Downstream service/session/carrying identification information and the G-RNTI that is associated with the identification information.In another example, base station can To be used to receiving the information for including transmission control information more than G-RNTI single cell by system information broadcast.Or, base station can Control information being transmitted to be used to receiving the G-RNTI single cell for including TMGI and being associated with TMGI by system information broadcast more Information.Or, base station can be used for the downstream service/meeting for recognizing group communication service/session/carrying by system information broadcast The information of control information is transmitted the identification information of words/carrying and the G-RNTI associated with the identification information single cell more.

In addition, base station can be generated transmits control information (step S720) single cell more.Control information being transmitted single cell more The information of neighbor cell transmitted on the single cell of offer can be provided more.Or, control information is transmitted single cell to wrap more Include the information of the group communication service on being provided by each cell.Or, single cell more transmit control information can include on The information of corresponding relation between group communication service and cell.For example, transmission control information can include on carrying more than single cell For the cell identification information of the neighbor cell transmitted single cell, TMGI and on providing biography more than the single cell associated with G-RNTI more At least one in the information of defeated neighbor cell.

In addition, base station can be into PCell UE send and transmit control information (step S730) single cell more.Can by The time of scheduling system information for transmitting single cell sends and transmits control information single cell more more.For example, base station can be System information includes schedule information (such as the cycle for receiving control information and skew value information), and can be according to tune Spend information and send control information.Control information is transmitted single cell to be instructed to by PDCCH more.Therefore, UE can obtain pass Information in the neighbor cell for providing the group communication service for wanting to carry out.Being passed in addition, UE can be identified on providing single cell more The information of defeated neighbor cell.

Meanwhile, UE can use transmission control information more than single cell of reception to come whether neighbor identification provides single cell Many transmission.Or, the group communication service type that UE can be provided with neighbor identification.Or, UE can recognize that offer UE wants The neighbor cell of the group communication service of progress.Or, UE can recognize the cell for providing and transmitting single cell more.Therefore, although no The system information on neighbor cell is checked, but whether UE can provide transmission, Huo Zhexiang more than single cell with neighbor identification Whether adjacent cell provides the group communication service that UE wants to carry out.

UE can be to providing the cell frequency assigned highest priority transmitted single cell, so that in cell reselection procedures more Use the frequency.Or, UE can in cell reselection procedures according to distribution cell reselection priority aforementioned embodiments come Priority is distributed to cell, and cell reselection procedures can be performed according to priority.

Therefore, base station can allow whether RRC- idle UEs provide biography more than single cell by serving cell neighbor identification It is defeated, and without coming whether neighbor identification provides biography more than single cell using system information or on the control information of neighbor cell It is defeated.In addition, UE can be to providing the cell frequency assigned highest priority transmitted single cell, so that in cell reselection more Also it is continuous that group communication service is provided.

Briefly describe all or part of UE that can perform the aforementioned operation of the present invention as needed and the configuration of base station.

Fig. 8 shows the UE of the further embodiment according to present invention configuration.

With reference to Fig. 8, included according to the UE800 of transmission data more than the single cell of the reception of the present invention：Receiving unit 830, is used for Receive the system information for transmitting single cell more in main plot and received in main plot and transmit control information single cell more； With control unit 810, for coming whether neighbor identification provides transmission more than single cell using the control information of transmission more than single cell.

In addition, receiving unit 830 can be received transmits control information the single cell being instructed to by PDCCH more.Single cell Many transmission control information can include on the cell identification information that the neighbor cell transmitted single cell is provided more, TMGI and on At least one in the information for the neighbor cell transmitted single cell for being associated with G-RNTI is provided more.The control letter of transmission more than single cell Breath can be scheduled by system information.Believe in addition, receiving unit 830 receives descending control by corresponding channel from base station Breath, data and message.

In addition, control unit 810 can be performed more to providing the cell frequency assigned highest priority transmitted single cell Cell reselection procedures.

In addition, UE 800 necessary to the control of control unit 810 performs the invention described above is receiving descending many by PDSCH Broadcast/multicast/group communication data when or minimizing the service that occurs due to movement of the RRC- idle UEs from cell to cell Overall operation during multicast/multicast/group communication data is received by PDSCH while interruption.

Meanwhile, when transmitting neighbor cell does not provide single cell, transmitting element 820 can be sent for asking by single more Broadcast to receive the solicited message of group communication service.The solicited message can be sent to serving cell, neighbor cell or GCS AS. In addition, transmitting element 820 sends ascending control information, data and message by corresponding channel to base station.

With reference to Fig. 9, base station 900 of the invention can include control unit 910, for generating transmission control letter more than single cell Breath；With transmitting element 920, for sending the system information for transmitting single cell in main plot and will be single in main plot more Transmit control information more cell and be sent to UE.

Transmitting element 920 can indicate to send by PDCCH transmits control information single cell more.Control is transmitted single cell more Information can be included on the cell identification information for providing the neighbor cell transmitted single cell, TMGI and on providing and G- more At least one in the information of neighbor cell transmitted single cell of RNTI associations more.Transmit control information single cell can be by more System information is scheduled.

Receiving unit 930 can receive the request to the group communication service by unicast from UE.

The control of control unit 910 performs the required base station 900 of the foregoing present invention and is sending downlink Multicast/group by PDSCH Broadcast/group communication data when or minimizing the service disruption that occurs due to movement of the RRC- idle UEs from cell to cell Overall operation during multicast/multicast/group communication data is sent by PDSCH simultaneously.

In addition, transmitting element 920 and receiving unit 930 are used to send/send from UE to UE to receive the foregoing present invention of execution Required signal, message and data.

The standard elements or normative document mentioned in the above-described embodiment have been omitted to simplify the description of specification, and Constitute the part of this specification.Therefore, when the standard content of standard elements and normative document is added in this specification or When carrying out open to it in the claims, it should be interpreted that and fall within the scope of the present invention.

Although describing the preferred embodiment of the present invention for illustration purposes, those skilled in the art It is to be appreciated that in the case where not departing from the scope and spirit of the present invention as disclosed in the dependent claims, can carry out various Modification, addition and replacement.Therefore, illustrative aspect of the invention is described not for limitative purposes.Should be to cause It is equal to all technical concepts included in the range of claims to belong to the mode of the present invention to be based on appended right Claim explains the scope of the present invention.

The cross reference of related application

This application claims the Application No. 10-2015-0002948 submitted on January 8th, 2015 korean patent application and The Application No. 10-2016-0000376 submitted on January 4th, 2016 korean patent application in 35 U.S.C. § 119 (a) Under priority and rights and interests, its all the elements is incorporated herein by reference for all purposes herein.In addition, this application claims except The priority of national identical korean patent application outside the U.S., entire contents will be incorporated herein by reference.

Claims

1. a kind of receive the method that data are transmitted single cell more for user equipment, methods described includes：

The system information for transmitting single cell is received in main plot (PCell) more；

Control information being transmitted in the main plot the single cell of reception more；With

Come whether neighbor identification provides transmission more than single cell using the control information of transmission more than single cell.

2. according to the method described in claim 1, wherein, single cell more transmit control information include：It is single small on providing Cell identification information, the group communication service identification information (Temporary Mobile Group Identity for the neighbor cell transmitted more in the area：TMGI) and close In providing (radio network temporary identifier is organized with group identification information：G-RNTI) the neighbor cell transmitted the single cell of association more At least one in information.

3. according to the method described in claim 1, controlling to believe by physical down wherein transmitting control information single cell more Road (PDCCH) indicates, and by the scheduling system information.

4. according to the method described in claim 1, in addition to：When transmitting the neighbor cell does not provide single cell, small more Ask to receive group communication service by unicast before changing in area.

5. according to the method described in claim 1, in addition to：By the frequency distribution to providing the cell transmitted single cell most more High priority performs cell reselection procedures.

6. a kind of send the method that data are transmitted single cell more for base station, methods described includes：

The system information for transmitting single cell is sent in main plot (PCell) more；

Control information being transmitted the single cell of generation more；With

The control information of transmission more than single cell is sent to user equipment (UE) in the main plot.

7. method according to claim 6, wherein control information is transmitted single cell to be included more：On providing single cell Cell identification information, the group communication service identification information (Temporary Mobile Group Identity for the neighbor cell transmitted more：TMGI) and on There is provided and group identification information (group radio network temporary identifier：G-RNTI) the letter for the neighbor cell transmitted single cell of association more At least one in breath.

8. method according to claim 6, wherein, transmit control information more single cell and control to believe by physical down Road (PDCCH) indicates, and by the scheduling system information.

9. method according to claim 6, wherein the UE is adjacent using transmission control information identification more than single cell Whether cell provides transmission more than single cell.

10. method according to claim 6, wherein, the UE passes through the frequency to providing the cell transmitted single cell more Assigned highest priority performs cell reselection procedures.

11. a kind of be used to receive the user equipment (UE) that data are transmitted single cell more, the UE includes：

Receiving unit, the receiving unit is configured as receiving the system for transmitting single cell in main plot (PCell) more Information, and transmit control information the single cell of reception in the main plot more；With

Control unit, described control unit, which is configured with the control information of transmission more than single cell, which comes neighbor identification, is It is no that transmission more than single cell is provided.

12. UE according to claim 11, wherein, control information is transmitted single cell to be included more：It is single small on providing Cell identification information, the group communication service identification information (Temporary Mobile Group Identity for the neighbor cell transmitted more in the area：TMGI) and close In providing (radio network temporary identifier is organized with group identification information：G-RNTI) the neighbor cell transmitted the single cell of association more At least one in information.

13. UE according to claim 11, wherein, transmit control information more single cell and control to believe by physical down Road (PDCCH) indicates, and by the scheduling system information.

14. UE according to claim 11, in addition to transmitting element, the transmitting element are configured as described adjacent small Area is not provided when transmitting single cell more, asks to receive group communication service by unicast before cell change.

15. UE according to claim 11, wherein, described control unit passes through to providing the cell transmitted single cell more Frequency assigned highest priority performs cell reselection procedures.

16. a kind of be used to send the base station that data are transmitted single cell more, the base station includes：

Control unit, described control unit is configurable to generate single cell more and transmits control information；With

Transmitting element, the transmitting element is configured as sending the system for transmitting single cell in main plot (PCell) more Information, and the control information of transmission more than single cell is sent to user equipment (UE) in the main plot.

17. base station according to claim 16, wherein, control information is transmitted single cell to be included more：It is single on providing Cell identification information, the group communication service identification information (Temporary Mobile Group Identity for the neighbor cell transmitted cell more：TMGI) and On providing and group identification information (group radio network temporary identifier：G-RNTI) the neighbor cell transmitted single cell of association more Information at least one.

18. base station according to claim 16, wherein, transmit control information more single cell and pass through physical down control Channel (PDCCH) is instructed to, and by the scheduling system information.

19. base station according to claim 16, wherein, the UE uses transmission control information identification phase more than single cell Whether adjacent cell provides transmission more than single cell.

20. base station according to claim 16, wherein, the UE passes through the frequency to providing the cell transmitted single cell more Assigned highest priority performs cell reselection procedures.