CN104954997A - Data communication method and mobile communication system - Google Patents

Data communication method and mobile communication system Download PDF

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Publication number
CN104954997A
CN104954997A CN201510225622.9A CN201510225622A CN104954997A CN 104954997 A CN104954997 A CN 104954997A CN 201510225622 A CN201510225622 A CN 201510225622A CN 104954997 A CN104954997 A CN 104954997A
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China
Prior art keywords
mbms
mobile terminal
base station
data
incoming call
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CN104954997B (en
Inventor
前田美保
望月满
岩根靖
福井范行
御宿哲也
高野道明
藤江良一
谷重纪
大久保晃
尾崎圭介
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority claimed from CN200680050128.2A external-priority patent/CN101351976B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a data communication method. A communication system executing the data communication method comprises a base station and a mobile terminal, wherein the base station is capable of changing sending bandwidth of broadcast data communication for a one-to-many broadcast communication service and sending bandwidth of dedicated communication data for a one-to-one dedicated communication service; the mobile terminal at least is capable of changing the receivable bandwidth for the broadcast data and the dedicated communication data sent from the base station, the bandwidth is used according to the frequency for receiving expected content received expectedly by the mobile terminal, and whether the content provided by the broadcast communication service is capable of receiving the expected content or not is judged, so that the mobile terminal can judge whether to be capable of receiving special E-MBMS (evolved multimedia broadcast multicast service) content or not by considering the position of own UE (user equipment).

Description

Data communications method and mobile communication system
The present patent application is international application no is PCT/JP2006/315755, international filing date is on August 9th, 2006, the application number entering National Phase in China is 200680050128.2, the divisional application of the application for a patent for invention that name is called " data communications method and mobile communication system ".
Technical field
The present invention relates to the mobile communication system that base station and multiple mobile terminal implement radio communication, particularly relate to the data communications method and the mobile communication system that mobile terminal are provided to multicast and broadcast type multimedia service.
Background technology
Be called in the communication mode in the 3rd generation, calendar year 2001, W – CDMA (Wideband Code Division Multiple Access: Wideband Code Division Multiple Access (WCDMA)) is put to commercialization by Japan.And the predetermined channel (HS – DSCH:High Speed – Downlink Shared Channel: high-speed downlink shared channel) started by adding transmitted in packets at down link (individual data channel, individual control channel) realizes using the data of down link to send HSDPA (High Speed Down Link Pack Access: the high-speed downlink packet accesses) business of further high speed.Also propose and discuss HSUPA (High Speed Up Link Pack Access: the High Speed Uplink Packet accesses) mode making the data of up direction send further high speed.W – CDMA is the communication mode that mobile communication system standardisation bodies 3GPP (3rd Generation Partnership Project: the 3 generation Partnership Program) specifies, collects in the standard book of present 6th edition.
Again, in 3GPP, as the communication mode different from W – CDMA, the new traffic mode being called " Long Term Evolution: Long Term Evolution " (LTE) and " System Architecture Evolution: system architecture evolution " (SAE) is being studied to radio zone and the whole system composition comprising core net.In LTE, access way, wireless channel composition is different from current W – CDMA (HSDPA/HSUPA) with agreement.Such as, in access way, W – CDMA employing code division multiple access (Code Division Multiple Access), and LTE uses OFDM (Orthogonal Frequency Division Multiplexing: Orthodoxy Frequency Division Multiplex) at down direction, use SC – FDMA (Single Carrier Frequency Division Access: single-carrier frequency division multiple access) at up direction.And the bandwidth of W – CDMA is 5 (MHz), and LTE application 1.25/2.5/5/10/15/20MHz.Again, in LTE, only use packet communication mode, but not the circuit switching that W – CDMA is such.
Because LTE forms communication system by the new core net that the core net (GPRS) from W – CDMA is different, net with W – CDMA the independently wireless access network separated define so be used as.Thus, in order to distinguish with W – cdma communication system, be called eNB (E – UTRAN Node B:E – UTRAN Node B) by with the base station that mobile terminal UE (User Equipment: subscriber equipment) carries out communicating in the communication system of LTE, the base-station control apparatus (Radio Network Controller: radio network controller) carrying out the exchange of control data and user data with multiple base station is called aGW (Access Gateway: IAD).The multicast and broadcast type multimedia service implemented in the communication system of this LTE is called as E – MBMS (Evolved Multimedia Broadcast Multicast Service: evolutionary multimedia broadcast multicast business), multiple mobile terminal is transmitted news, weather forecast, the Large Copacity broadcasted content such as mobile broadcast.Be referred to as one-to-many (Point to Multipoint) business.E – MBMS data is mapped to DL – SCH (Downlink Shared Channel: DSCH Downlink Shared Channel) or MCH (Multicast Channel: multicast channel) by base station, issues mobile terminal.Again, LTE not only provides broadcasting communication business, and provides the communication service to Individual mobile terminal in multiple mobile terminal.Clean culture (Unicast) business is called by the communication service of Individual mobile terminal.LTE and W – CDMA is different, separate channel (the Dedicated Channel towards other mobile terminal individual is there is not in transmission channel, physical channel, Dedicated Physical Channel: dedicated channel, DPCH), so implement to send the data of Individual mobile terminal with common signal channel (shared channel).
Patent documentation 1 discloses in the communication system of cdma2000 mode, just in the method that (the Point to Point) one to one of the mobile terminal process voice call of receiving broadcast service (Broadcast service) communicates.The minimum ability (Minimum Capability) specifying the received bandwidth of mobile terminal in LTE system in non-patent literature 1 is 10MHz, and the adaptive-bandwidth of base station changes to maximum 20MHz (i.e. 1.25/2.5/5/10/1520MHz).In addition, non-patent literature 2 discloses the treatment step of the eNode B receiving the information enforcement of the necessity of E – MBMS according to the expression sent from mobile terminal.But non-patent literature 2 does not disclose the detailed step receiving E – MBMS and unicast service simultaneously.
Again, non-patent literature 3 discloses and sends paging message (Paging Message) and broadcast message (Broadcast information), to realize mobile terminal low power consumption.But the received bandwidth not disclosing mobile terminal is less than the distinctive problem of this LTE of bandwidth of base station.The relation of position on frequency axis and paging message is not disclosed yet.Non-patent literature 4 discloses the PCH sending method of the UE position be conceived on frequency axis.Disclose again and paging designator (Paging Indicator) is sent to mobile terminal locations side.But, do not disclose the mobile terminal receiving E – MBMS and receive for the problem of the information (paging message, paging designator etc.) of incoming call process or its solution.
Patent documentation 1:WO2004/71125 publication
Non-patent literature 1:3GPP TR25.912V7.1.0
Non-patent literature 2:3GPP R2-61319
Non-patent literature 3:3GPP R1-61772
Non-patent literature 4:3GPP R1-61683
Summary of the invention
, in prior art (UTRAN system), to mobile terminal, base station are all same, bandwidth is decided to be 5MHz.In contrast, in LTE system, the received bandwidth of mobile terminal is decided to be minimum 10MHz, the bandwidth of base station is decided to be maximum 20MHz.In other words, because mobile terminal does not necessarily have the received bandwidth of 20MHz, so can receive bandwidth is the content that the mobile terminal of 10MHz can not receive the E – MBMS sent from base station with 20MHz frequency band.
Again, formulate standard in planning, make the mobile terminal of LTE that E – MBMS can be utilized to communicate with individual data both (clean culture).But the disposal ability of the hardware and software of mobile terminal is low, then can not receive E – MBMS data and unicast data when having simultaneously.And, need the information (paging message, paging designator etc.) for incoming call process (paging) when mobile terminal receives unicast data, but do not specify the method receiving the information for incoming call process during E – MBMS receives.
The present invention proposes for solving above-mentioned problem, perform the communication system of data communications method to comprise and can change for providing the transmission of the broadcast-type data of a pair many types of broadcast communication services and the base station for the bandwidth that provides the individual communication data of type individual communication business one to one to send, and can change at least for receiving the mobile terminal of received bandwidth of broadcast-type data that base station sends and individual communication data, wherein wish that the frequency usage bandwidth of content is wished in the reception received according to for sending mobile terminal, carry out in the content judging that broadcast communication services provides, whether receiving the judgement process that content is wished in this reception.
Mobile communication system of the present invention, comprise can change for provide the transmission of the broadcast-type data of a pair many types of broadcast communication services and for the bandwidth that provides the individual communication data of type individual communication business one to one to send base station and can change at least for receiving the mobile terminal of the received bandwidth of broadcast-type data that base station sends and individual communication data, wherein according to for sending mobile terminal, mobile terminal wishes that the frequency usage bandwidth of content is wished in the reception received, and judges that whether can receive this reception in the content that broadcast communication services provides wishes content.
Data communications method of the present invention, perform the communication system of the method to comprise and can change for providing the transmission of the broadcast-type data of a pair many types of broadcast communication services and the base station for the bandwidth that provides the individual communication data of type individual communication business one to one to send, and can change at least for receiving the mobile terminal of received bandwidth of broadcast-type data that base station sends and individual communication data, wherein wish that the frequency usage bandwidth of content is wished in the reception received according to for sending mobile terminal, carry out in the content judging that broadcast communication services provides, whether receiving the judgement process that content is wished in this reception, thus mobile terminal can judge whether to receive specific E – MBMS content in the mode of the UE position considering itself.
Mobile communication system of the present invention, comprise and can change for providing the transmission of the broadcast-type data of a pair many types of broadcast communication services and the base station for the bandwidth that provides the individual communication data of type individual communication business one to one to send, and can change at least for receiving the mobile terminal of received bandwidth of broadcast-type data that base station sends and individual communication data, wherein according to for sending mobile terminal, mobile terminal wishes that the frequency usage bandwidth of content is wished in the reception received, judge that whether can receive this reception in the content that broadcast communication services provides wishes content, thus mobile terminal can judge whether to receive specific E – MBMS content in the mode of the UE position considering itself.
The simple declaration of accompanying drawing
Fig. 1 is the key diagram of the structure of the mobile communication system that LTE is shown.
Fig. 2 is the key diagram of the structure that the channel used in LTE communication system is shown.
Fig. 3 is the block diagram of the structure that mobile terminal is shown.
Fig. 4 is the block diagram of the structure that base station is shown.
Fig. 5 is the key diagram of the relation that the bandwidth of base station and the received bandwidth of mobile terminal are shown.
Fig. 6 illustrates the key diagram to the E – MBMS contents table that mobile terminal distributes.
Fig. 7 is the key diagram of the position illustrated on the frequency axis distributing to E – MBMS.
Fig. 8 illustrates the flow chart judging whether the process of the mobile terminal that can receive E – MBMS.
Fig. 9 is the flow chart further describing contents processing shown in Fig. 8.
Figure 10 is the key diagram of the terminal ability information of the mobile terminal that network side reference is shown.
Figure 11 illustrates to judge whether certain mobile terminal can receive the flow chart of the process of the base station of E – MBMS.
Figure 12 illustrates to judge whether certain mobile terminal can receive the flow chart of the process of the network of E – MBMS.
Figure 13 illustrates that judgement is utilizing the mobile terminal of E – MBMS whether can utilize the flow chart of the process of unicast service simultaneously.
Figure 14 illustrates that judgement is utilizing the mobile terminal of E – MBMS whether can receive the flow chart of the process of unicast data.
Figure 15 illustrates that judge whether can to the flow chart of process utilizing the mobile terminal of E – MBMS to send unicast data.
Figure 16 is the Resource Block key diagram of the distribution illustrated Radio Resources such as frequency during mobile terminal transmission E – MBMS data and times.
Figure 17 is the Resource Block key diagram of the distribution illustrated Radio Resources such as frequency during mobile terminal transmission E – MBMS data and times.
Figure 18 illustrates that E – MBMS position can not send the key diagram of the situation of unicast data.
Figure 19 illustrates that E – MBMS position can send the key diagram of the situation of unicast data.
Figure 20 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 21 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 22 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 23 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 24 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 25 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 26 is the Resource Block key diagram of the distribution that the Radio Resources such as frequency when sending information for incoming call process to the mobile terminal receiving E – MBMS data and time are described.
Figure 27 is the flow chart of the hand-off process illustrated the mobile terminal receiving E – MBMS data.
Figure 28 is the flow chart of the hand-off process illustrated the mobile terminal receiving E – MBMS data.
Figure 29 is the key diagram of the Resource Block that the base station of handover source and the base station at switching object place are shown.
Label declaration
1aGW, 2 base stations, 3 travelling carriages, 4 Packet Data Networks, 5 service centers, 6 protocol processes portions, 7 application sections, 8 send data buffer storage portion, 9 encoder portions, 10 modulation portion, 11 frequency conversion parts, 12 antennas, 13 demodulation sections, 14 decoder portions, 15 control parts, 16aGW Department of Communication Force, 17 other base station communication portions, 18 protocol processes portions, 19 transmission data buffer storage portions, 20 encoder portions, 21 modulation portion, 22 frequency conversion parts, 23 antennas.24 demodulation sections, 25 decoder portions, 26 control parts
The best mode carried out an invention
Execution mode 1
Fig. 1 is the key diagram of the structure of the mobile communication system that LTE is shown.In Fig. 1, aGW1 and multiple base station (eNode B) 2 carries out the transmitting-receiving of control data and user data, and the transmitting-receiving of data is carried out to multiple mobile terminal 3 in base station 2.Between base station 2 and mobile terminal 3, send announcement information, information for incoming call process, individual control information, individual user's data, the control data of E – MBMS and user data.And, also mutually communicate between research base station 3 ().Base station 2 has uplink and downlink scheduler.Scheduler makes base station 2 can perform with the data transmit-receive of each mobile terminal 3, and carries out dispatching to improve the treating capacity of each mobile terminal 3 and whole mobile communication system.
E – MBMS provides broadcast-type one-to-many (Point to Multipoint P to M) the type communication service simultaneously sending data from certain base station toward multiple mobile terminal.Specifically, the Large Copacity broadcasting services such as the information service such as news, weather forecast, mobile TV are being studied.E – MBMS send in, studying multiple cell (Multi – cell) send and single community (Single – cell) send these 2 kinds.Multiple cell sends and sends same E – MBMS broadcasting service from multiple base station by same frequency, and thus mobile terminal can synthesize the E – MBMS data from multiple base station.E – MBMS data is mapped to MCH, sends.
On the other hand, single community sends in a community, only sends same E – MBMS broadcasting service.In the case, E – MBMS data is mapped to DL – SCH, sends.Single community sends and also can send E – MBMS data by the frequency that each base station is different.AGW1 is communicated with service center 5 by PDN4 (Packet Data Network: Packet Data Network).Service center 5 is for keeping, distributes the device providing the content of E – MBMS.Content supplier sends the E – MBMS data such as mobile TV broadcast data to service center 5.Store E – MBMS data in service center 5, and by PDN4, aGW1, E – MBMS data is issued base station 2.
Fig. 2 is the key diagram of the structure that channel is shown.The mapping of logic channel shown in Fig. 2 (Logical channel) and transmission channel (Transport channel).Logic channel is classified according to the function of signal transmission and logic behaviour.Transmission channel is classified according to transmission form.Announcement information is positioned on BCCH (Broadcast Control Channel: Broadcast Control Channel).BCCH is mapped to BCH (Broadcast Channel: broadcast channel), issues mobile terminal from base station.The information being used for incoming call process is positioned in PCCH (Paging Control Channel: paging control channel).PCCH is mapped to PCH (Paging Channel: paging channel), issues the mobile terminal in community from base station.Be positioned in giving the unit control data of Individual mobile terminal on DCCH (Dedicated Control Channel: Dedicated Control Channel).
Again, will be positioned on DTCH (Dedicated Traffic Channel: dedicated service amount channel) to individual user's data of Individual mobile terminal.DCCH and DTCH is mapped to DL – SCH (Downlink Shared Channel: downlink sharied signal channel), issues each mobile terminal respectively from base station.Otherwise, use UL – SCH (Uplink Shared Channel: uplink shared channel) to send respectively from each mobile terminal toward base station.DL – SCH is shared channel (Shared Channel).The control data of E – MBMS and user data are positioned in respectively on MCCH (Multicast Control Channel: multicast control channel) and MTCH (Multicast Traffic Channel: multicast traffic channel), and be mapped to DL – SCH or MCH (Multicast Channel: multicast channel), issue mobile terminal from base station.By Random Access Channel (Random Access Channel; RACH) connection request signal from mobile terminal is sent to base station from each mobile terminal.
Fig. 3 is the block diagram of the structure that mobile terminal is shown.The transmission processing performing mobile terminal 3 is as follows.First, by from agreement handling part 6 control data, from the user data of application section 7 be saved in send data buffer storage portion 8.Passing to encoder portion 9 by sending the data of preserving in data buffer storage portion 8, implementing the coded treatment such as error correction.Also can exist and do not implement coded treatment and directly output to the data of modulation portion 10 from sending data buffer storage portion 8.Data after modulation portion 10 pairs of encoder portions 9 carry out coded treatment carry out modulation treatment.After data after modulation are transformed into baseband signal, output to frequency conversion part 11, be transformed into wireless transmission frequency.Thereafter, transmission signal is issued base station 2 from antenna 12.Again, the reception process performing mobile terminal 3 is as follows.The wireless signal from base station 2 is received by antenna 12.By Received signal strength after frequency conversion part 11 becomes baseband signal from wireless receiving frequency translation, carry out demodulation process at demodulation section 13.Data after demodulation are passed to decoder portion 14, carries out the decoding process such as error correction.In data after decoding, control data is passed to protocol processes portion 6, and user data is passed to application section 7.A series of transmitting-receiving process of mobile terminal control by control part 15.
Fig. 4 is the block diagram of the structure that base station is shown.The transmission processing performing base station 2 is as follows.AGW Department of Communication Force 16 carries out the data transmit-receive between base station 2 and aGW1.Other base station communication portion 17 carries out the data transmit-receive between other base station.AGW Department of Communication Force 16, other base station communication portion 17 carry out the handing-over of information with protocol processes portion 18 respectively.Control data from agreement handling part 18 or the user data from aGW Department of Communication Force 16 and other base station communication portion 17 are saved in and send data buffer storage portion 19.Passing to encoder portion 20 by sending the data of preserving in data buffer storage portion 19, implementing the coded treatment such as error correction.Also can exist and do not implement coded treatment and directly output to the data of modulation portion 21 from sending data buffer storage portion 19.In modulation portion 21, modulation treatment is carried out to the data after coding.
After data after modulation are transformed into baseband signal, output to frequency conversion part 22, be transformed into wireless transmission frequency.Thereafter, transmission signal is issued one or more mobile terminal 1 from antenna 23.Again, the reception process performing base station 2 is as follows.Received from one or more wireless signal from mobile terminal 3 by antenna 23.By Received signal strength after frequency conversion part 22 becomes baseband signal from wireless receiving frequency translation, carry out demodulation process at demodulation section 24.Data after demodulation are passed to decoder portion 25, carries out the decoding process such as error correction.In data after decoding, control data is passed to protocol processes portion 18, and user data is passed to aGW Department of Communication Force 16, other base station communication portion 17.A series of transmitting-receiving process of base station 2 control by control part 26.
Fig. 5 is the key diagram of the relation that the bandwidth of base station and the received bandwidth of mobile terminal are shown.Specify in LTE system: the bandwidth of base station can be selected from 1.25/2.5/5/10/15/20MHz and utilize.The received bandwidth of mobile terminal is specified to maximum 20MHz, at least supports 10MHz.When the received bandwidth of mobile terminal is less than the bandwidth of base station, mobile terminal and base station negotiate, move between position (position), and namely mobile terminal carries out the process of the centre frequency changing wireless receiving and dispatching frequency.This process is called readjustment (re-tune).In Fig. 5, as an example, illustrate that the bandwidth of base station is 20MHz, the received bandwidth of mobile terminal is the situation of 10MHz and 20MHz.When the received bandwidth of mobile terminal is 10MHz, whole frequency band can not be received to the 20MHz bandwidth of base station, so use 10MHz frequency range to communicate simultaneously.In the case, the position of carrying out the 10MHz communicated is not limited to 1, following the example of according to centre frequency, exists multiple as the slot # 1 in figure, #2, #3.Moreover, when the received bandwidth of mobile terminal is 20MHz, consistent with the bandwidth of base station, so the whole transmission bandwidth from base station can be used.In the case, above-mentioned readjustment is not needed.
Below, illustrate that the received bandwidth of mobile terminal 3 is 10MHz, the bandwidth of base station 2 judges the mobile terminal no process that can receive E – MBMS when being 20MHz.Fig. 6 illustrates the key diagram to the E – MBMS contents table that mobile terminal distributes.Fig. 7 is the key diagram of the position illustrated on the frequency axis distributing to E – MBMS.
When the bandwidth of base station is maximum 20MHz, the received bandwidth of mobile terminal is 10MHz, there is the situation that frequency usage bandwidth mobile terminal that some E – MBMS content (program) uses can not receive.Existing W – CDMA technology is equal due to the received bandwidth of the bandwidth sum mobile terminal of base station, is all 5MHz, does not consider to solve the problem, and mobile terminal can not judge whether to receive specific E – MBMS content.Therefore, in order to can to consider that the mode of the ability (can receive bandwidth) that mobile terminal represents judges whether to receive specific E – MBMS content, the E – MBMS contents table of mobile terminal being distributed from base station, with each E – MBMS content with corresponding relation add that each content uses (namely for receive and dispatch this content) frequency usage bandwidth as parameter.Comprise the frequency usage bandwidth of each E – MBMS use in E – MBMS contents table in the mode being used as parameter like this, thus mobile terminal can judge whether to receive specific E – MBMS content in the mode of the received bandwidth considering itself.
Again, there is the situation of E – MBMS contents table interpolation towards the unicast service of certain specific mobile terminal.Such as, when the E – MBMS content utilizing communication to sell, consider the situation of user with reference to the details of certain commodity (suitcase).In the case, mobile terminal, according to the instruction from user, sends the up direction (mobile terminal of specifying " suitcase " network side) unicast data.The details of " suitcase " are used as down direction (network side by the network side of the unicast data that mobile terminal receive sends mobile terminal) unicast info send.At this moment, the specific user of the details of " suitcase " toward this information of request is sent.Such reception adds the E – MBMS content of unicast service, can process premised on E – MBMS and unicast service by mobile terminal in the disposal ability of hardware or software simultaneously.But mobile terminal can not judge that the transmitting-receiving of specific E – MBMS content is with unicast service.
Therefore, in order to judge whether to receive the E – MBMS content with unicast service in the mode of the ability of mobile terminal (here for considering the disposal ability of hardware and software) itself, the E – MBMS contents table of mobile terminal being distributed from base station, comprise itself whether with the parameter (information with or without individual communication) of unicast service with each E – MBMS content with corresponding relation.Like this, in E – MBMS contents table, comprise expression whether with the parameter of unicast service with each E – MBMS content with corresponding relation, thus mobile terminal can judge whether to receive specific E – MBMS content in the mode of the disposal ability (whether can receive E – MBMS and unicast data) considering itself simultaneously.
Bandwidth of base station is maximum 20MHz, mobile terminal is when can to receive bandwidth be 10MHz, 3 receiving positions different because centre frequency is followed the example of shown in this mobile terminal receiving position on the frequency axis (UE position) imaginary picture of primitive people 8.Thus, there is such as UE position is the problem that the mobile terminal of position 1 can not receive the E – MBMS content utilizing the frequency band of position 2 (E – MBMS position) to send.In order to address this is that, mobile terminal preferably can to consider that the mode of UE position and E – MBMS position judges whether to receive specific E – MBMS content.Therefore, in order to mobile terminal can judge whether to receive specific E – MBMS content, the E – MBMS contents table of mobile terminal being distributed from base station, with each E – MBMS content with corresponding relation comprise that each content uses (for receiving and dispatching this content) E – MBMS position as parameter (content transmission band information).Comprise E – MBMS position as parameter in E – MBMS contents table like this, thus mobile terminal can judge whether to receive specific E – MBMS content in the mode of the UE position considering itself.
Fig. 6 illustrate to comprise like that illustrated by an example above frequency usage bandwidth, whether with unicast service, E – MBMS position as the E – MBMS contents table of parameter.Moreover E – MBMS contents table need not comprise whole above-mentioned parameter, and can be used alone certain parameter, also use capable of being combined.And above-mentioned parameter does not add as the parameter in E – MBMS contents table, and mobile terminal of issuing a separate notice, also can obtain same effect.Again, above-mentioned explanation is illustrated the situation that the received bandwidth of mobile terminal is 10MHz, but also can apply the thought disclosed in above-mentioned explanation in the communication system different with the bandwidth of mobile terminal of base station.
Then, the concrete process of the mobile terminal of the E – MBMS contents table using Fig. 6 is described.Fig. 8 illustrates that frequency band can receive the flow chart of the process of the mobile terminal of E – MBMS.Fig. 9 is the flow chart further describing content shown in Fig. 8.In the step 1 of Fig. 8, E – MBMS contents table is sent to mobile terminal 3 through base station 2 (eNode B) by the network that such as service center 5 is such; In step 2, mobile terminal 3 receives E – MBMS contents table.Base station 2 can receive E – MBMS contents table with mobile terminal 3 simultaneously.This E – MBMS contents table comprise frequency usage bandwidth, whether with unicast service, these 3 parameters of E – MBMS position all or part of.And above-mentioned parameter also can not be included in E – MBMS contents table, and separate with E – MBMS contents table and send.
The MCH that E – MBMS contents table can be used as transmission channel notifies, also can notify with BCH, DL – SCH.Again, consideration can be mapped to the MCCH as logic channel (Logical Channel), and is mapped to the method that IP head carries out notifying.Mobile terminal 3 receives E – MBMS contents table, then E – MBMS content desired by will receiving in step 3 selection, carries out the process judging whether to receive the E – MBMS content selected in step 4.The detailed condition of the process of description of step 4 in Fig. 9.The judged result of step 4 is when can receive the E – MBMS content selected, and mobile terminal 3 sends E – MBMS in step 5 and receives request, to receive the E – MBMS content wishing to receive.Process transmission being used for the reception request receiving E – MBMS content is called logins (entry).Sometimes will login be called order use (subscribe), activate (activation).The E – MBMS sent at service center 5 mobile terminal receive 3 receives request.Except service center 5 reception is logined, base station 2 also can receive.Again, can will notify the calculating (Counting) of startup E – MBMS content reception and login simultaneously or issue base station 2 dividually.
Fig. 9 is the flow chart of the process of the step 4 being shown specifically Fig. 8.In the step 1 of Fig. 9, the received bandwidth of the frequency usage bandwidth sum mobile terminal of the E – MBMS content of hope compared and considered, and judging whether to receive the E – MBMS content of wishing.The judgement of this step 1 is with reference to this parameter of frequency usage bandwidth of figure 6.Such as, when the received bandwidth of mobile terminal is 10MHz, be judged as that frequency usage bandwidth is the film that the content number of 20MHz can not receive CH3.When step 1 is judged as receiving, perform step 2.In step 2, judge that whether the E – MBMS content of wishing is with unicast service.This step 2 judge with reference to figure 6 whether with this parameter of unicast service.When the E – MBMS content of wishing is with unicast service, perform step 3.On the other hand, when without unicast service, perform step 4.
In step 2, when the E – MBMS content of wishing is with unicast service, judge whether receive E – MBMS data and unicast data in step 3 simultaneously.As long as this is because mobile terminal can not receive E – MBMS data and unicast data simultaneously, the E – MBMS content with unicast service is just completely meaningless.To consider the hardware of mobile terminal, the mode of software processing capability perform this process.The judged result of step 3 is that mobile terminal has when can receive E – MBMS data and unicast data simultaneously, performs the process of step 4.The judgement of this step 4 is with reference to this parameter of E – MBMS position of figure 6.Such as, be judged as: UE position is that the mobile terminal of position 1 judges to receive weather forecast that E – MBMS position is the content number CH1 of 1, the live coverage of baseball of CH2, the communication of CH4 are sold.So far, perform step 1 to the result of the series of steps of step 4 when being judged as that mobile terminal can receive the E – MBMS content of wishing, mobile terminal sends E – MBMS reception to network side and asks (step 5 of Fig. 8).On the other hand, step 1,3, when being judged as that mobile terminal can not receive the E – MBMS content of hope in arbitrary step of 4, be judged as receiving in the step 4 of Fig. 8.
In the step 4 of Fig. 9, when mobile terminal is the E – MBMS content that can not receive hope according to E – MBMS position and the UE position judgment of itself, can be judged as " the UE position of present situation can not receive ", but not be only judged as " can not receive " and ends process.In the case, mobile terminal in order to change UE position to base station requests, from mobile terminal to " UE position move request " of base station notice to the E – MBMS position of hope.The negotiation result of base station and mobile terminal, base station accepts UE position when moving request, and mobile terminal changes the setpoint frequency of frequency conversion part 11 to UE position, by making centre frequency change, thus obtains the effect of the E – MBMS content receiving hope.This process is called readjustment (re-tune).
As described above, the received bandwidth of mobile terminal and the bandwidth of base station can be different LTE communication system in when utilizing E – MBMS, mobile terminal judges to judge whether receive the E – MBMS content of wishing, so not to the reception request of the E – MBMS content that the ability of network advertisement mobile terminal can not receive in the mode of the ability considering mobile terminal itself.Thus, effectively utilizing Radio Resource this respect favourable.And, when can not receive the E – MBMS content of hope because the UE position of mobile terminal is different from the position (E – MBMS position) of the E – MBMS content of hope, UE position is sent to base station and moves request, thus obtain the effect that can receive the E – MBMS content of wishing.
Execution mode 2
Execution mode 1 the received bandwidth of mobile terminal and the bandwidth of base station can be different LTE communication system in, mobile terminal itself judges whether receive specific E – MBMS content or whether can receive E – MBMS and unicast service simultaneously.And, in order to do to judge whether the frequency usage bandwidth sum of E – MBMS content is used as parameter with unicast service and adds in the E – MBMS contents table of distributing mobile terminal from network side at mobile terminal.But, above-mentioned process not necessarily mobile terminal itself carry out, also can carry out at the network side that base station or aGW, service center are such.
Below, illustrate in base station, network side that aGW, service center are such implements judging whether certain mobile terminal can receive the situation of E – MBMS.Figure 10 is the key diagram that the terminal ability information (UE capability) that mobile terminal sends is shown.When the bandwidth of base station is 20MHz, the received bandwidth of mobile terminal is 10MHz, there is the frequency usage bandwidth because E – MBMS content (program) uses, the situation that mobile terminal can not receive.But, as long as the received bandwidth of nonrecognition mobile terminal, just can not judge whether certain mobile terminal can receive E – MBMS content at network side.Therefore, in order to judge whether mobile terminal can receive specific E – MBMS content, mobile terminal toward base station, aGW or the such network side of service center, bandwidth can be received and be used as terminal ability information (UE Capability) and be sent to network side.
Again, there is the situation to the interpolation of E – MBMS content towards the unicast service of certain specific mobile terminal.But mobile terminal does not have the situation that can process the ability of E – MBMS and unicast service in hardware or software simultaneously, do not mean that the E – MBMS content of this terminal transmission with unicast service., network side can not judge whether certain mobile terminal has the ability that simultaneously can process E – MBMS and unicast service.Therefore, whether expression is had the information that simultaneously can process the ability of E – MBMS and unicast service and is used as terminal ability information and issues network side by certain mobile terminal.Again, as terminal ability information, the UE position (selection band information) illustrated in execution mode 1 also can be notified.Above-mentioned parameter (bandwidth can be received, whether can process E – MBMS and clean culture simultaneously, UE position) can be notified dividually with terminal ability information.And, all can not use above-mentioned parameter, and use its part.Above-mentioned explanation is illustrated the situation that the received bandwidth of mobile terminal is 10MHz, but the base station communication system different from the bandwidth of mobile terminal can apply the thought disclosed in above-mentioned explanation.
Figure 10 is the key diagram of the terminal ability information of the mobile terminal that network side reference is shown.Comprise in table shown in Figure 10 and can receive bandwidth and represent the information whether with the ability that can process E – MBMS and unicast service (such as receiving E – MBMS data and unicast data) simultaneously simultaneously, their terminal ability information is recorded in mobile terminal accordingly.Table shown in Figure 10 is the table in network side reference, and the terminal ability information can issuing network side according to mobile terminal is made.Figure 11 illustrates to judge whether certain mobile terminal can receive the flow chart of the process of the base station of E – MBMS.In the step 1 of Figure 11, terminal ability information (UE Capabilities) is issued base station 2 and the such network of aGW1 by mobile terminal 3.In step 2, base station 2 receives the terminal ability information from mobile terminal 3.Specifically, mobile terminal 3 utilization is called the agreement of RRC (Radio Resource Control: wireless heterogeneous networks) and notifies base station with layer 3 message.Also can consider to be used as the method for MAC (Media Access Control: medium education) signaling from mobile terminal informing base station.The terminal ability information sent in step 1 comprises and can receive bandwidth sum and whether have the information that simultaneously can process the ability of E – MBMS and unicast service.
In step 3, E – MBMS contents table is issued mobile terminal 3 through base station 2 (eNode B) by the network that such as service center 5 is such.In step 4, base station 2 receives E – MBMS contents table; In step 5, mobile terminal 3 receives E – MBMS contents table.The E – MBMS contents table that mobile terminal 3 receives is identical with execution mode 1, also can comprise frequency usage bandwidth, whether with unicast service, these 3 parameters of E – MBMS position all or part of, but present embodiment is not must be like this.This is because implement at base station 2 network side such as grade the judgement process that in execution mode 1, mobile terminal carries out with reference to above-mentioned parameter.This situation due to the amount of information in the interval (between base station and mobile terminal) that must send as wireless signal must be cut down, so effectively utilize in Radio Resource favourable.Specifically, such as utilization is called that E – MBMS contents table is used as layer 3 message from network advertisement base station 2 by the agreement of NBAP (Node B Application Part: node B application part).
In step 6, mobile terminal 3, in order to select to wish E – MBMS content desired by reception and receive the E – MBMS content wishing to receive, sends E – MBMS reception request in step 7.Specifically, such as mobile terminal 3 utilizes the agreement being called RRC (Radio Resource Control: wireless heterogeneous networks), and the request that received by E – MBMS is used as layer 3 message and is sent.Also can consider to be used as the method that MAC signaling carries out notifying.The E – MBMS that in step 8, base station 2 mobile terminal receive 3 sends receives request.Consider that this E – MBMS receives request and uses calculating (Counting), logins (also referred to as Entry, ordering use, activation) etc.
In step 9, base station 2 one side is with reference to the table shown in Figure 10, and one side judges whether mobile terminal 3 has the ability receiving desired E – MBMS content.Specifically, base station 2 according to desired E – MBMS content whether with the received bandwidth of the frequency usage bandwidth sum mobile terminal of unicast service, desired E – MBMS content, and whether mobile terminal can receive E – MBMS data and these viewpoints of unicast data simultaneously, judge whether the E – MBMS content desired by receiving.Again, when notice UE position, base station 2 judges with the position (E – MBMS position) of the E – MBMS content considered mobile terminal and select and the mode of UE position.
In the step 9 of Figure 11, base station be judged as mobile terminal 3 can not mobile terminal receive 3 select E – MBMS content, then in step 10,2 pairs, base station mobile terminal 3 sends the notice not allowing E – MBMS to login, and refusal is logined.On the other hand, in step 9, base station is judged as the E – MBMS content that mobile terminal 3 energy mobile terminal receive 3 is selected, then carry out E – MBMS start treatment to mobile terminal 3.But, can be judged as " the UE position of present situation can not receive ", but not step 10 sends the notice that do not allow E – MBMS to login like that and ends process.In the case, if change UE position, base station judges whether to receive desired E – MBMS content, if can receive, then can carry out processing (such as, allowing to reset to mobile terminal), make E – MBMS position and UE position consistency.
Moreover the above-mentioned explanation based on Figure 11 illustrates that the flow chart of process when whether certain mobile terminal can receive E – MBMS is carried out judging in base station 2, but aGW1, service center also can be made to perform judge process, but not base station 2.Figure 12 illustrates to judge whether certain mobile terminal can receive the flow chart of the process of the network of E – MBMS.It is different that Figure 12 moves on to network this point in each step performed base station 2 of Figure 11, but the content of its step is identical, so detailed.
As described above, when the received bandwidth of mobile terminal and the bandwidth of base station can be different LTE communication system in utilize E – MBMS, in the mode of the ability considering certain mobile terminal, base station, aGW service center etc. judge whether certain mobile terminal can receive desired E – MBMS content.Again, when can not receive desired E – MBMS content because the UE position of mobile terminal is different with the position (E – MBMS position) of desired E – MBMS content, if controlled, make base station change UE position to mobile terminal, just there is the effect of the change expanding the E – MBMS content that mobile terminal can utilize.
Execution mode 3
Execution mode 1 and 2 the received bandwidth of mobile terminal and the bandwidth of base station can be different LTE communication system in, judge whether mobile terminal can receive specific E – MBMS content or whether can receive E – MBMS and unicast service simultaneously.And in execution mode 1, mobile terminal itself implements above-mentioned judgement; In execution mode 2, base station or aGW, service center implement above-mentioned judgement.Below, illustrate that the mobile terminal receiving E – MBMS data (comprising control information) starts the step of the such unicast data reception of such as voice call.
Figure 13 illustrates that judgement is utilizing the mobile terminal of E – MBMS whether can utilize the flow chart of the process of unicast service.In Figure 13, user represents to base station notice which side the prior information (step 11) preferentially utilizing E – MBMS and unicast service.The prior information (step 12) that base station mobile terminal receive sends.Utilization is called the agreement of RRC (wireless heterogeneous networks), this prior information is used as layer 3 message informing base station.Also can by the method etc. being used as MAC (medium education) signaling base station.According to this prior information, when the incoming call that generation voice call is such when mobile terminal is receiving E – MBMS content, control, the reception making E – MBMS content preferentially and refusal call incoming call, or makes voice call incoming call and stops the reception of E – MBMS content.
The mobile terminal receiving E – MBMS content by receiving the information (paging message, paging designator etc.) for incoming call process (paging), identify produce such as voice call such to indivedual incoming calls of this terminal.In the step 1 of Figure 13, mobile terminal judges whether to receive the information for this TV station incoming call process.Mobile terminal receives when being used for the information of incoming call process (being yes in step 1), and in step 2, mobile terminal judges, except the current E – MBMS data received, whether also to carry out the reception of unicast data.Figure 14 illustrates the detailed condition of the judgement process of this step 2.Figure 14 illustrates that judgement is utilizing the mobile terminal of E – MBMS whether to receive the flow chart of the process of unicast data.In the step 1 of Figure 14, in order to utilize E – MBMS and unicast service simultaneously, judge that whether the ability of mobile terminal is enough.The ability of mobile terminal is enough (being yes in step 1), then in step 2, judge whether user allows to receive E – MBMS and unicast service simultaneously.
User allows to receive E – MBMS and unicast service (being yes in step 2) simultaneously, then receive unicast data to base station notice, so that except E – MBMS, also utilize unicast service (step 4 of Figure 13) simultaneously.On the other hand, when the ability of mobile terminal is not enough (being no in step 1) or when not allowing to receive E – MBMS and unicast service (being no in step 2) simultaneously, judges whether to be set in E – MBMS and unicast service and preferentially utilize E – MBMS data (step 3 of Figure 13).Be set to and preferentially utilize E – MBMS data (being yes in step 3), then refuse the unicast data of new incoming call, continue to utilize E – MBMS (step 9).Preferentially utilize unicast service (being no in step 3) if be set to, then perform the process and unicast data reception process (step 10) that stop E – MBMS data to receive.
In the step 4 of Figure 13, mobile terminal, in order to utilize E – MBMS and unicast service simultaneously, receives unicast data to base station notice; In step 5, the notice that base station mobile terminal receive sends.Base station judges whether unicast data to issue mobile terminal in step 6.Figure 15 illustrates the detailed condition of the judgement process of step 6.Figure 15 illustrates the flow chart judging whether unicast data to be issued the mobile terminal process utilizing E – MBMS.In the step 1 of Figure 15, base station receives unicast data to judge whether to utilize to reset, and judges the whether discontinuous transmission of E – MBMS.Figure 16 and Figure 17 is the Resource Block key diagram of the distribution illustrated the Radio Resource such as frequency, time during mobile terminal transmission E – MBMS data.In Figure 16, X direction represents frequency.The bandwidth of base station is the 20MHz of A to E.Y direction represents the time.When the received bandwidth of mobile terminal is 10MHz, because the 20MHz of the bandwidth A to E to base station can not receive whole frequency band, so communicate by the frequency range of 10MHz simultaneously.Following the example of according to centre frequency, what the position 1 (A-C frequency band, centre frequency F1) in figure, position 2 (C-D frequency band, centre frequency F2), position 3 (B-D frequency band, centre frequency F3) were mobile terminal can frequency acceptance band.
In example shown in Figure 16, distinguish by E – MBMS content assignment to position 1 (that is, position 1 is E – MBMS position), and discontinuous transmission on the time shaft of the longitudinal axis.Namely, when carrying out the judgement of the step 1 of Figure 15, as shown in figure 16, discontinuous transmission is carried out to E – MBMS and its discontinuous phase guarantee mobile terminal reset needed for time (hereinafter setting forth detailed condition) when, base station is judged as changing centre frequency by utilizing to reset and changing UE position, receives the unicast data being distributed in diverse location.On the other hand, in example shown in Figure 17, distinguish by E – MBMS content assignment to position 1, and send continuously on the time shaft of the longitudinal axis.That is, when sending E – MBMS content as shown in Figure 17 continuously, there is not the time carrying out resetting to receive the unicast data being distributed in diverse location.Thus, when carrying out the judgement of the step 1 of Figure 15, when sending E – MBMS as shown in Figure 17 on a timeline continuously, be judged as to receive in the mode of carrying out resetting the unicast data being distributed in diverse location.Moreover, such as when E – MBMS use A-B frequency band, clean culture use B-C frequency band, B-C frequency band comprises the received bandwidth A-C (10MHz) of mobile terminal, so can receive the unicast data being distributed in frequency band B-C simultaneously, no matter whether sends E – MBMS data.
Also intention or the ability that can consider about whether performing the mobile terminal of readjustment in step 1.The concrete Notification Method of the intention of mobile terminal utilizes the agreement being called RRC (Radio Resource Control: wireless heterogeneous networks), with layer 3 message informing base station.Also can be used as MAC (Media Access Control: medium education) signaling from mobile terminal informing base station, also can consider the method being mapped to physical channel.Again, the intention of mobile terminal or ability can be used as terminal ability information and notify, also can be used as other parameter and notify.As concrete contents processing, in step 1 during discontinuous transmission E – MBMS, confirm intention, the ability of mobile terminal.At this moment, when " do not reset (maybe can not reset) ", be treated to no in step 1, proceed to step 2.When " reset (maybe can reset) ", being treated in step 1 is proceed to step 4.Mobile terminal was resetted by the short time (in units of Resource Block), made the process load of control part 15 and frequency conversion part 11 become large.Therefore, consider that intention or the ability of the readjustment of mobile terminal are good.
In step 1, owing to sending E – MBMS continuously, be judged as receiving the unicast data (being no in step 1) being distributed in diverse location, then judging whether in step 2 can to E – MBMS position schedule of apportionment multicast data.Figure 18 and Figure 19 is whether Resource Block is shown and illustrates can to the key diagram of E – MBMS position schedule of apportionment multicast data.Figure 18 illustrates that Figure 19 illustrates the key diagram to E – MBMS position schedule of apportionment multicast data not to the key diagram of E – MBMS position schedule of apportionment multicast data.In Figure 18, E – MBMS position is the position 1 (10MHz) as A-C frequency band of Figure 18, and in use location 1, A-B frequency band (being used as 5MHz in figure to represent) sends E – MBMS content continuously.And, distinguish the control data of B-C bandwidth assignment unicast service, the transmission of user data in position 1.
In Figure 18, distinguish in B-C frequency band there is not idle Resource Block substantially, so in the frequency band of E – MBMS position, send crowded by the down direction of dispatching distribution.In this case, in E – MBMS position, new unicast data can not be distributed.When such E – MBMS position not existing the Resource Block distributing new unicast data, be judged as distributing unicast data (being no in step 2) on E – MBMS position, and start in the step 7 of Figure 13 or proceed the business that user is set to preferential receipt in E – MBMS and unicast service.
When being judged as NO in the step 2 of Fig. 5 again, the process shown in below can carrying out.Even if the first process also carries out E – MBMS in different positions (situation of such as Figure 18, then between the D-E in position 2).Like this, position 1 and position 2 is made to be E – MBMS position.Therefore, pass through and base station negotiate, mobile terminal only once makes UE position move to the readjustment of position 2 from position 1, just proceeds to step 3.Thus, the E – MBMS in a mobile terminal energy receiving position 2, the unicast service in a receiving position 2.2nd process is passed through and base station negotiate, and mobile terminal only once moves to the readjustment of the position (such as when Figure 18, being then position 2) that there is the Resource Block distributing new unicast data, just proceeds to step 3.Even if base station multiple cell sends, also E – MBMS data is mapped to DL – SCH and sends.From base station by the schedule information (frequency, time etc.) of the E – MBMS data and clean culture number that are mapped to DL – SCH according to notifying this mobile terminal, thus the E – MBMS in a mobile terminal energy receiving position 2, the unicast service in a receiving position 2.Again, by from base station to multiple mobile terminal notice schedule information (frequency, time etc.), the mobile terminal of these information notified receiving position 2 can map to the E – MBMS data of DL – SCH.By adding above-mentioned 1st process and/or the 2nd process, situation about being judged as NO in the step 2 of Figure 15, compared with the situation proceeding to step 7 of Figure 13, has advantage can receive in E – MBMS and unicast service simultaneously.
On the other hand.In Figure 19, identical with Figure 18, E – MBMS position is the position 1 (10MHz) as A-C frequency band, and in use location 1, A-B frequency band (being used as 5MHz in figure to represent) sends E – MBMS content continuously.And, distinguish the control data of B-C bandwidth assignment unicast service, the transmission of user data in position 1.But, Tu19Zhong, B-C frequency band exists idle Resource Block, so can new unicast data be distributed in E – MBMS position.Like this, when E – MBMS position exists the Resource Block distributing new unicast data, be judged as E – MBMS position schedule of apportionment multicast data (being yes in step 2), and step 3 to be performed.Otherwise, to be judged as in the step 2 of Figure 15 on E – MBMS position can not schedule of apportionment multicast data when, perform the process of the step 7 of Figure 13.The process of the step 7 of Figure 13 is identical with the process of the step 3 of Figure 13, so omit the description.
E – MBMS uses A-B frequency band, when clean culture use B-C frequency band, even if send E – MBMS continuously, be also limited to the received bandwidth A-C (10MHz) including mobile terminal in, can receive E – MBMS data and unicast data, two kinds of business all can be enjoyed.Thus, E – MBMS (being no in step 1) is sent continuously in step 1, and exist when distributing the Resource Block of new unicast data to E – MBMS position (being yes in step 2) in step 2, in step 3, base station sends unicast data to the mobile terminal receiving E – MBMS data, so dispatch, to new unicast data Resources allocation block.In the case, do not carry out resetting to change UE position, and E – MBMS data and unicast data can be received.Moreover the process of the step 3 of Figure 15 is equivalent to the process of the step 8 of Figure 13.
On the other hand, at the step 1 of Figure 15 discontinuous transmission E – MBMS, by carrying out readjustment, UE position is changed, thus can be judged as receiving unicast data (being yes in step 1), and in step 4, base station judges whether that the actual mobile terminal that makes is resetted.The downlink quality information (Channel Quality Indicator) that base station utilizes mobile terminal to send the frequency band (such as A-B, B-C, C-D, D-E) of such as Resource Block shown in each Figure 16 can grasp frequency characteristic and quality.Thus, base station, when such as frequency band C-D, D-E poor quality, can judge that mobile terminal is resetted unsatisfactory to receive unicast data.Again, when the position 2 (position beyond E – MBMS position) of Figure 16 is crowded, unicast data is dispatched to E – MBMS position, so mobile terminal need not be resetted.When being judged as in step 4 not making mobile terminal reset (being no in step 4), perform the process of step 2.On the other hand, when being judged as mobile terminal is resetted (being yes in step 4), perform the process of step 6.
In step 6, whether base station judges can schedule of apportionment multicast data on position, readjustment object place.In this step 6, also identical with step 2, judge whether to there is the Resource Block distributing new unicast data, but idle contrary with reference to the Resource Block of E – MBMS position with step 2, step 6 is idle with reference to the Resource Block of position, readjustment object place, and on this aspect, both are different.And, base station step 6 with consider mobile terminal reset required for the mode of time with reference to free time of Resource Block of position, readjustment object place.
, mobile terminal is by transforming to from F1 the readjustment that F2 (Figure 16) carries out UE position to change to from position 1 position 2 by the reference frequency produced in frequency conversion part 11.But, when reference frequency is changed to F2 from F1 by frequency conversion part 11, before the frequency F2 at stable generation readjustment object place, need the regular hour.Consider this mobile terminal characteristic, base station is to consider that mobile terminal is made the mode of readjustment required time and dispatched.Specifically, want to make as shown in Figure 16 the mobile terminal receiving E – MBMS1 in position 1 to reset position 2 when receiving unicast service, base station is dispatched, and the new clean culture 1 produced is assigned to from the call duration time time departure RT of E – MBMS1 (mobile terminal reset required for time) Resource Block.Carry out the scheduling of clean culture 2 similarly, to be assigned to the Resource Block of the call duration time time departure RT from E – MBMS2.When although the Resource Block of position, readjustment object place is had time but can not guarantee time RT, base station can be judged as in position, readjustment object place can not schedule of apportionment multicast data, also can, on the basis of estimated quality deterioration, be judged as distributing.Equally, reset from position 2 position 1 time, mobile terminal also spends the time required for resetting.Therefore, base station need with consider mobile terminal reset required for the mode of time dispatch.
In step 6, to be judged as in base station on position, readjustment object place can schedule of apportionment multicast data time (being yes in step 6), perform the process of step 5.When being judged as distributing (being no in step 6), perform the process of step 2.In step 5, base station in order to send unicast data to the mobile terminal receiving the E – MBMS time, to the position of the new unicast data produced beyond E – MBMS position in the mode different from the time of E – MBMS data to unicast data Resources allocation block.This dispatch deal is carried out by base station, in E – MBMS position during mobile terminal reception E – MBMS data, in the position of schedule of apportionment multicast data during reception unicast data, one side is resetted, and one side carries out the reception of E – MBMS data and unicast data in the different time.That is, mobile terminal can utilize E – MBMS and unicast service.Moreover the process of the step 5 of Figure 15 is equivalent to the process of the step 8 of Figure 13.The processing sequence of Figure 15 also can be consistent with above-mentioned explanation.Such as, first carry out the process of step 2, proceed to step 3 when step 2 is judged as YES.Carry out the process of step 1, step 4 and step 6 when step 2 is judged as NO, when step 6 is judged as YES, carry out the process of step 5.The process of the step 7 of Figure 13 is performed when being judged as NO in step 1 or step 4,6.
In the step 1 of Figure 13, mobile terminal determines whether to receive the information (paging information, paging designator etc.) for incoming call process (paging).The information being used for incoming call process is sent from base station, so that the mobile terminal receiving E – MBMS data can receive the information for incoming call process by following method.Data that this time sends from base station can not be received in order to solve mobile terminal on the position beyond UE position this is less than the peculiar problem of this LTE of bandwidth of base station and the problem produced because mobile terminal can receive bandwidth, need the method.Figure 20 and Figure 21 is the Resource Block key diagram that the allocation of radio resources such as frequency and time when sending information for incoming call process to the mobile terminal receiving E – MBMS data is described.In Figure 20, by A-C frequency band (10MHz) discontinuous transmission E – MBMS content.That is, E – MBMS position is position 1, and the mobile terminal receiving E – MBMS data also receives at the frequency band of position 1 simultaneously.Each position is used to send the information being used for incoming call process from base station, so that (the UE position, position can selected regardless of mobile terminal; Select frequency band) can receive.When Figure 20, use location 1 and position 2 and the frequency band B-D of position 3 overlap are distributed in multiple Resource Block of the time discontinuous transmission different from E – MBMS.That is, multiple Resource Block is used to send identical information.
Figure 21 is key diagram when utilizing A-B frequency band to send E – MBMS content continuously.Owing to sending E – MBMS content continuously, information for incoming call process can not be sent with staggering with E – MBMS content transmitting time.But, to the A-B frequency band in E – MBMS content only distribution locations 1 (A-C), so the information of incoming call process can be used for the B-C bandwidth assignment of position 1.In Figure 21, identical with Figure 20, also use each position sends the information being used for incoming call process from base station, can receive regardless of the position (UE position) of mobile terminal selection.When Figure 21, use location 1 and position 2 and the frequency band B-D of position 3 overlap are distributed in multiple Resource Block of the time discontinuous transmission different from E – MBMS.That is, multiple Resource Block is used to send identical for incoming call process information.
Figure 22 and Figure 23 is the Resource Block key diagram that the allocation of radio resources such as frequency and time when sending information (Paging message, Paging Indicator etc.) for incoming call process (Paging) to the mobile terminal receiving E – MBMS data is described.In Figure 22, by A-C frequency band (position 1) discontinuous transmission E – MBMS content.And, to the information distribution for incoming call process in E – MBMS position with the Resource Block of the time discontinuous transmission different from E – MBMS.The Resource Block of the frequency band B-D of Figure 20 distribution locations 1 and position 2 and position 3 overlap, can receive the information being used for incoming call process and the position (frequency band is selected in UE position) no matter mobile terminal is selected, the difference of Figure 22 divides to E – MBMS position the information being used in incoming call process.Thus different from the situation shown in Figure 20, Figure 21, the information distribution that will not be used for incoming call process, to multiple Resource Block, contributes to effective utilization of Radio Resource.Figure 23 is the key diagram that the situation sending E – MBMS content is continuously described.Due to the A-B frequency band in E – MBMS content only distribution locations 1 (A-C), so will the B-C frequency band of information distribution in position 1 of incoming call process be used for.Due to mobile terminal can frequency acceptance band be 10MHz, can receive in the case no problemly.Figure 23 is also identical with Figure 22, is dividing the message context being used in incoming call process to have feature to E – MBMS position, effectively utilize in Radio Resource favourable.Divide to E – MBMS position the information being used in incoming call process, but also can consider that the scope on the frequency axis identical with E – MBMS content (program) that the mobile terminal in E – MBMS position receives often divides the information being used in incoming call process.Therefore, reduce mobile terminal and receive in process and operate required frequency range, so can think the advantage of process load obtaining and reduce demodulation section 13, control part 15.
Figure 24 and Figure 25 is the Resource Block key diagram that the allocation of radio resources such as frequency and time when sending information for incoming call process to the mobile terminal receiving E – MBMS data is described.In Figure 24, by A-C frequency band (position 1) discontinuous transmission E – MBMS content.And, the information being used for incoming call process is used as the part notice mobile terminal of E – MBMS content.Specifically, the information MAP of the incoming call process of the mobile terminal receiving E – MBMS will be used for MCH (transmission channel).Below, as an example of content transmission common signal channel, MCH is described.Or, be positioned in MCCH (logic channel) or MTCH (logic channel).In other words, the eNode B carrying out medium education, the aGW performing paging process or the high-end network equipment is utilized to accept the calculating of the E – MBMS content from mobile terminal or login (ordering use, activation) etc., at MCH but not PCH sends the information for incoming call process to the mobile terminal receiving E – MBMS.Or, also can at MCCH or MTCH but not PCCH send.At this moment, to do not receive E – MBMS mobile terminal the information for incoming call process routinely such PCH send.Like this, the information being used for incoming call process is used as a part for E – MBMS data, be sent to mobile terminal with MCH, MCCH, MTCH, thus the mobile terminal receiving E – MBMS carries out the reception of E – MBMS data, then also can receive the information for incoming call process.On this aspect, the paging that can simplify in mobile terminal reception E – MBMS process receives process.Figure 25 is key diagram when sending E – MBMS content continuously.To the A-B frequency band in E – MBMS content only distribution locations 1 (A-C), and send the information being used for incoming call process with MCH or MCCH, MTCH without PCH.This point is identical with Figure 24.
Figure 26 is the Resource Block key diagram that the allocation of radio resources such as frequency and time when sending information for incoming call process to the mobile terminal receiving E – MBMS data is described.In Figure 26, in A-C frequency band (position 1) discontinuous transmission E – MBMS content.And, in the position 2 point different from E – MBMS position (being position 1 in Figure 26), the Resource Block of the time discontinuous transmission different with E – MBMS content is equipped with to the information for incoming call process.As shown in figure 26, by E – MBMS data and be used for incoming call process information when different positions is sent to mobile terminal, mobile terminal needs to carry out resetting to from E – MBMS position the position sent for the information of incoming call process.When mobile terminal is resetted, carry out the process being switched to F2 from centre frequency F1 (position 1), but after switching, before the frequency F2 of stable output switching, need the elapsed time (RT).Consider this readjustment the time difference needed, in Figure 26 after transmission E – MBMS content, the time RT that sky opens readjustment to be needed sends the information for incoming call process, Resources allocation block by this way.
As system, the time of carrying out adjustment, makes PCH transmitting time not overlapping with E – MBMS transmitting time, then in base station, aGW, more high-end equipment, do not mind which mobile terminal and whether receiving E – MBMS, even if the mobile terminal receiving E – MBMS also can receive PCH.Moreover, when the information for incoming call is sent to the mobile terminal receiving E – MBMS, also can carry out above-mentioned adjustment to PCH transmitting time, and the mobile terminal not receiving E – MBMS is sent in the mode be positioned on the PCH not carrying out time adjustment.By such formation, do not need relative to the PCH transmitting time regulation time of mobile terminal not receiving E – MBMS, so the degree of freedom increases.But, need regulation time, in order to avoid overlapping with E – MBMS transmitting time relative to the PCH of the mobile terminal receiving E – MBMS.
So far, describe base station to the method for mobile terminal transmission for the information of incoming call process with Figure 20 ~ Figure 26, but also can use when not only sending PCH but also when sending SCH (Synchronized Channel: synchronizing channel).And, also can use when MCCH (multicast control channel), the MTCH (multicast traffic channel) of the control data for sending E – MBMS and user data are sent.At this moment, E – MBMS data being changed into MTCH, the information being used for incoming call process is changed into the mode of MCCH and consider, then can use above-mentioned thought.Execution mode 3 describes the mobile terminal receiving E – MBMS data (comprising control information) and starts the step that unicast data receives as above, but the mobile terminal that the thought shown in execution mode 3 also can be used for receiving unicast data starts step when receiving E – MBMS data (comprising control information).
Execution mode 4
There is the mobile terminal receiving E – MBMS carry out moving thus need to switch the situation of carrying out the switching of the community communicated.Perform receiving E – MBMS and also with MCH or MCCH, MTCH but not PCH sends information for incoming call process time switching (direct-cut operation) when, switch object place and also must send to mobile terminal the information being used for incoming call process in the same manner as handover source.Therefore, in the communication system of LTE, directly communicate between predetermined landing, so notify to the base station switching object the information representing " mobile terminal switched is receiving E – MBMS " from the base station of handover source.The identification of base stations switching object place moves the mobile terminal come and is receiving E – MBMS, be then scheduled to and do not carry out PCH transmission overlappingly with E – MBMS transmitting time.Or, with MCH or MCCH, MTCH but not the information being used for incoming call process is sent to mobile terminal by PCH.Moreover, when being adjusted to not overlapping with the transmitting time of E – MBMS data to the transmitting time of PCH (information for incoming call process) of the mobile terminal receiving E – MBMS, also carry out process same as above.
Figure 27 is the flow chart of the hand-off process illustrated the mobile terminal receiving E – MBMS data.In step 1, the mobile terminal receiving E – MBMS content notifies (to calculate, login the E – MBMS content that (ordering use, activation) receives hope to the eNode B (1) as handover source base station.After receiving this notice, E – MBMS content is sent to mobile terminal.In step 2, eNode B (1) PCH sends information for incoming call process in not overlapping with E – MBMS content transmitting time mode.In step 3, determine to make mobile terminal be switched to the eNode B (2) (object eNode B) as switching object base station from the eNode B (1) (source eNode B) as handover source base station, then in step 4eNode B (1), " mobile terminal switched is utilizing E – MBMS " is notified to eNode B (2).Complete hand-off process in step 5, then the notified eNode B (2) of step 4 step 6 to mobile come PCH used for mobile terminal to send information for incoming call process with the nonoverlapping mode of E – MBMS content transmitting time.
Moreover the process of step 2 can either party carries out by base station or aGW, also jointly can carry out with eNode B.The information needed when switching by the communication path notice between this base station, compared with when notifying with the path of the middle handover source base station-base-station control apparatus (RNC) of prior art (UTRAN system)-switch base station, object place, there is the advantage can passed on the short time.But, also can switch object base station from handover source base station through network advertisement.Again, mobile terminal can again (calculate to switching base station, object place notice, login (ordering use, activation) and receive E – MBMS content.And, with MCH or MCCH, MTCH but not PCH sends when being used for the information of incoming call process also identical.
Again, when utilizing the mobile terminal of E – MBMS and unicast service to switch, switch the transmission that base station, object place also needs to determine whether to carry out mobile terminal E – MBMS data and unicast data.Such as, in some situations, even if handover source has enough abundant Radio Resource to transmission E – MBMS data and unicast data, if the Radio Resource switching object place is not abundant, also have to E – MBMS or unicast service are given up.Figure 28 is the flow chart of the hand-off process illustrated the mobile terminal receiving E – MBMS data and unicast data.In Figure 28, when mobile terminal utilizes E – MBMS and unicast service (step 1), determine hand-off process (step 2), then to switching base station, object place eNode B (2) notice, handover source base station eNode B (1) represents that mobile terminal is receiving the information of E – MBMS data.Also the message of " mobile terminal receives E – MBMS and unicast service just at the same time " can be notified.Whether notified eNode B (2) has the judgement of Radio Resource mobile terminal being provided to E – MBMS and unicast service.Illustrate that this judges the detailed condition processed, so omit the description with Figure 15.
Figure 29 is the key diagram of the Resource Block that the base station of handover source and the base station at switching object place are shown.A () illustrates the Resource Block of handover source base station, (b) illustrates the Resource Block switching base station, object place.When the process of Figure 29 (a) step 2 in fig .15 judges whether to utilize E – MBMS and unicast service simultaneously, be judged as utilizing, thus the frequency band carried out in position 1 sends E – MBMS data and unicast data to mobile terminal simultaneously.On the other hand, Figure 29 (b) is judged as: almost do not have assignable Resource Block on the frequency band of position 1, can not utilize E – MBMS and unicast service simultaneously.In the case, preferential E – MBMS data or unicast data user is specified to issue mobile terminal.
As described above, when utilizing the mobile terminal of E – MBMS and unicast service to switch, before switching, handover source base station is utilizing the message of E – MBMS and unicast service to switching base station, object place notice mobile terminal, thus judges whether in switching base station, object place transmission mobile terminal being carried out to E – MBMS data and unicast data.Like this by judging whether can utilize E – MBMS and unicast service before the handover simultaneously, thus can obtain and can switch the effect of community at object place base station selected more suitable (such as can be no problem utilize two kinds of business).

Claims (8)

1. a communication means, this communication means is used for carrying out radio communication between the mobile terminal and the base station, it is characterized in that, comprising:
MBMS forwarding step, in this MBMS forwarding step, sends MBMS data in time upper discontinuous mode; And
Incoming call forwarding step, in this incoming call forwarding step, sends in time upper discontinuous mode the information adopted in incoming call process,
In described MBMS forwarding step and described incoming call forwarding step, the moment sending described MBMS data is different from the moment sending the information adopted in described incoming call process.
2. communication means as claimed in claim 1, is characterized in that,
Comprise the synchronized transmission step sending synchronizing signal in time upper discontinuous mode,
In described MBMS forwarding step and described synchronized transmission step, the moment of the described MBMS data of transmission is made to be different from the moment sending described synchronizing signal.
3. a mobile communication system, this mobile communication system possesses mobile terminal and base station, and wherein, radio communication is carried out in this base station between described mobile terminal, it is characterized in that,
Described base station comprises MBMS transmitting element, and this MBMS transmitting element sends MBMS data in time upper discontinuous mode; And incoming call transmitting element, this incoming call transmitting element sends in time upper discontinuous mode the information adopted in incoming call process,
Described MBMS transmitting element and described incoming call transmitting element make the moment of the described MBMS data of transmission be different from the moment sending the information adopted in described incoming call process.
4. communication system as claimed in claim 3, is characterized in that,
Comprise the synchronized transmission unit sending synchronizing signal in time upper discontinuous mode,
In described MBMS transmitting element and described synchronized transmission unit, the moment of the described MBMS data of transmission is made to be different from the moment sending described synchronizing signal.
5. a base station, radio communication is carried out in this base station between mobile terminal, it is characterized in that, comprising:
MBMS transmitting element, this MBMS transmitting element sends MBMS data in time upper discontinuous mode; And
Incoming call transmitting element, this incoming call transmitting element sends in time upper discontinuous mode the information adopted in incoming call process,
Described MBMS transmitting element and described incoming call transmitting element make the moment of the described MBMS data of transmission be different from the moment sending the information adopted in described incoming call process.
6. communication system as claimed in claim 5, is characterized in that,
Comprise the synchronized transmission unit sending synchronizing signal in time upper discontinuous mode,
In described MBMS transmitting element and described synchronized transmission unit, the moment of the described MBMS data of transmission is made to be different from the moment sending described synchronizing signal.
7. a mobile terminal, this mobile terminal carries out radio communication between base station, it is characterized in that, comprising:
MBMS receiving element, this MBMS transmitting element receives MBMS data in time upper discontinuous mode; And
Incoming call receiving element, this incoming call transmitting element receives in time upper discontinuous mode the information adopted in incoming call process,
The moment of the described MBMS data of reception is made to be different from the moment receiving the information adopted in described incoming call process.
8. communication system as claimed in claim 7, is characterized in that,
Comprise the synchronous receiving element receiving synchronizing signal in time upper discontinuous mode,
The moment of the described MBMS data of reception is made to be different from the moment receiving described synchronizing signal.
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