CN102833788B

CN102833788B - Uplink data sending method, device and system

Info

Publication number: CN102833788B
Application number: CN201210135618.XA
Authority: CN
Inventors: 韩玉楠; 李轶群; 李福昌; 郭省力; 杨剑键; 陈国利
Original assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Current assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Priority date: 2012-05-03
Filing date: 2012-05-03
Publication date: 2015-07-15
Anticipated expiration: 2032-05-03
Also published as: CN102833788A

Abstract

The invention discloses an uplink data sending method, an uplink data sending device and an uplink data sending system, wherein the uplink data sending method comprises the following steps: according to the request information sent by a limited mobile terminal limited by uplink transmission, sending back response message used for indicating the limited mobile terminal to perform uplink transmission to the limited mobile terminal, and sending assistance request to an assistance mobile terminal being in an idle state in a service area; after receiving confirmed assistance information returned by the assistance mobile terminal and the uplink data sent by the limited mobile terminal according to the response message, allocating the uplink data resource, indicating the limited mobile terminal to send data on the first resource, indicating the assistance mobile terminal to capture data on the first resource, and transmitting the data by utilizing a second resource; combining the data received from the first resource and the second resource after demodulation to acquire uplink data after signal strength reinforces. According to the uplink data sending method, the uplink data sending device and the uplink data sending system, the SINR (Signal-to-Interference and Noise Ratio) of receiving uplink data by a base station and the accuracy of demodulating the uplink data can be improved, and the effect of the base station uplink cover is strengthened.

Description

Method for transmitting uplink data, Apparatus and system

Technical field

The present invention relates to wireless communication technology, particularly relate to a kind of method for transmitting uplink data, Apparatus and system.

Background technology

Along with the development of wireless communication technology, 3-G (Generation Three mobile communication system) (the 3th Generation, 3G) popularize gradually, in the face of the challenge that growing high-speed data service demand is brought, mobile communication system needs to the quick evolution of cellular mobile network of future generation, develop into Long Term Evolution (LongTerm Evolution, LTE) system gradually.

For LTE system, unbalanced problem is covered to up-downgoing ubiquitous in various kinds of mobile communication system and is described.

LTE system is generally based on existing global system for mobile communications (Global System forMobile communications, and/or universal mobile telecommunications system (Universal MobileTelecommunications System GSM), UMTS) build, through finding the analysis and simulation comparative study of wireless channel various in LTE system, the upstream data service channel of LTE covers limited channel the most serious.

Studied by simulation analysis, the covering of upstream data service is subject to distributed different resource block (Resource Block, the impact of the factors such as quantity RB) is very faint, the principal element limiting up covering is the maximum power of uplink assignment, namely, under the prerequisite meeting certain data service rate, the restriction that up largest coverage distance is subject to up maximum transmit power is the most serious.

Can improve up covering by increasing the maximum transmit power of terminal in theory, to reaching up-downgoing, the balance of data service and control signal covers.But, improve power and will greatly consume the energy consumption of terminal, due to limiting factors such as terminals physical size and battery capacities, improve to cover in the mode improving maximum transmission power and be subject to serious restriction, and improving power also will cause great adjacent area to be disturbed, and correspondingly also can reduce covering and the capacity of system.Utilize mixed automatic retransfer (Hybrid Automatic Repeat Request, HARQ) technology and ascending frequency-hopping technology in prior art, slightly can improve the covering of upstream data service, but effect is not remarkable.

Due to the restriction of terminal energy consumption, in each mobile communication system, the transmission of ubiquity base station down has comparatively large coverage, and the coverage of base station uplink to compare lower guild much little, occur that up-downgoing covers unbalanced problem, Signal to Interference plus Noise Ratio (the Signal to Interference plus Noise Ratio of the upstream data received by base station, SINR) reduce, cause the accuracy rate of base station demodulates upstream data to reduce.

Summary of the invention

For defect of the prior art, embodiments provide a kind of method for transmitting uplink data, Apparatus and system.

Embodiments provide a kind of method for transmitting uplink data, comprising:

The solicited message that the restricted movement terminal limited according to the uplink received sends, return to described restricted movement terminal and be used to indicate the response message that it carries out uplink, and the assist mobile terminal being in idle condition in service area sends assistance request;

Receive described assist mobile terminal according to described confirmation assistance information of assisting to ask to return, after the upstream data sent according to described response message with described restricted movement terminal, uplink transmission resource is distributed, described restricted movement terminal is indicated to send data on first resource, indicate described assist mobile terminal capture-data utilize Secondary resource to forward on described first resource, wherein said first resource is orthogonal with described Secondary resource;

Merge after respectively demodulation is carried out to the data that described first resource and described Secondary resource receive, obtain the upstream data after signal strength signal intensity enhancing.

The embodiment of the present invention additionally provides a kind of method for transmitting uplink data, comprising:

If to receive, after reference signal that the base station of Serving cell and neighbor cell periodically sends detects, judge that from as restricted movement terminal, then the base station to described Serving cell sends for asking the solicited message of assisting;

Return according to described base station, instruction carries out the response message of uplink, sends upstream data;

Send according to the described base station received, indicate the indication information sending data on first resource, send upstream data.

According to the assistance request that the described base station received sends, return confirmation assistance information;

Send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

The embodiment of the present invention additionally provides a kind of base station, comprising:

First base station module, for the solicited message that the restricted movement terminal limited according to the uplink received sends, return to described restricted movement terminal and be used to indicate the response message that it carries out uplink, and the assist mobile terminal being in idle condition in service area sends assistance request;

Second base station module, for receiving described assist mobile terminal according to described confirmation assistance information of assisting to ask to return, after the upstream data sent according to described response message with described restricted movement terminal, uplink transmission resource is distributed, described restricted movement terminal is indicated to send data on first resource, indicate described assist mobile terminal capture-data utilize Secondary resource to forward on described first resource, wherein said first resource is orthogonal with described Secondary resource;

3rd base station module, merges after carrying out demodulation respectively to the data that described first resource and described Secondary resource receive, and obtains the upstream data after signal strength signal intensity enhancing.

The embodiment of the present invention additionally provides a kind of restricted movement terminal, comprising:

First restricted terminal module, for to receive, reference signal that the base station of Serving cell and neighbor cell periodically sends detects, judge certainly as after restricted movement terminal, the base station to described Serving cell sends for asking the solicited message of assisting;

Second restricted terminal module, for return according to described base station, instruction carries out the response message of uplink, sends upstream data;

3rd restricted terminal module, for send according to the described base station received, indicate the indication information sending data on first resource, send upstream data.

The embodiment of the present invention additionally provides a kind of assist mobile terminal, comprising:

First assists terminal module, for the assistance request sent according to the described base station received, returns confirmation assistance information;

Second assists terminal module, for send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

The embodiment of the present invention additionally provides a kind of communication system, comprises above-mentioned base station, restricted movement terminal and assist mobile terminal.

In the embodiment of the present invention, base station is after the request receiving the transmission of restricted movement terminal, searching in its service area to provide the mobile terminal of assistance as assist mobile terminal, when restricted movement terminal sends its upstream data, the data that assist mobile terminal sends according to this restricted movement terminal of the instruction active obtaining of base station, by the data retransmission that gets to base station, thus, base station can not only receive the upstream data that restricted movement terminal sends, and can also receive this upstream data that assist mobile terminal forwards.Therefore, the signal strength signal intensity of the upstream data that the restricted movement terminal that base station receives sends obtains enhancing, the SINR that base station receives upstream data can be improved, improve the accuracy rate of base station demodulates upstream data, contribute to the uplink communication quality promoting restricted movement terminal, effectively can strengthen the effect of up covering, thus be conducive to the equilibrium of up-downgoing coverage.

Accompanying drawing explanation

Fig. 1 is the flow chart of the first method for transmitting uplink data embodiment of the present invention;

Fig. 2 is the flow chart of the second method for transmitting uplink data one embodiment of the present invention;

Fig. 3 is the flow chart of another embodiment of the second method for transmitting uplink data of the present invention;

Fig. 4 is the flow chart of the third method for transmitting uplink data one embodiment of the present invention;

Fig. 5 is the flow chart of the third another embodiment of method for transmitting uplink data of the present invention;

Fig. 6 is the structural representation of base station embodiment of the present invention;

Fig. 7 is the structural representation of restricted movement terminal embodiment of the present invention;

Fig. 8 is the structural representation of assist mobile terminal embodiment of the present invention;

Fig. 9 is the structural representation of communication system of the present invention.

Embodiment

Fig. 1 is the flow chart of the first method for transmitting uplink data embodiment of the present invention, and as shown in Figure 1, the method comprises:

The solicited message that step 100, the restricted movement terminal limited according to the uplink received send, return to described restricted movement terminal and be used to indicate the response message that it carries out uplink, and the assist mobile terminal being in idle condition in service area sends assistance request;

Mobile terminal in base station and its service area carries out normal data communication, due to mobile terminal device performance restriction and consider the problems such as adjacent area interference, its uplink transmission power can be limited within the specific limits, thus cause the up coverage of base station to be less than descending coverage, for mobile terminal, when it moves to the descending coverage region larger than up coverage, there will be uplink limited, become restricted movement terminal.For the restricted movement terminal that uplink is limited, base station receive its send upstream data SINR can reduce, and base station can reduce the accuracy that this upstream data carries out demodulation.

In the embodiment of the present invention, mobile terminal needs to send upstream data to base station, but when there is the limited situation of uplink, by the mode to base station transmission request information, request base station provides assistance to its uplink.Concrete, when mobile terminal needs to send upstream data to base station, need first to send random access guiding data to base station, to ask access, therefore solicited message can be the form of the random access guiding data (preamble) that restricted movement terminal sends to base station, be different from prior art, in this lead data, add assistance transmission request (AssistantTransmission Request-eNodeB, the ATR-NB) signaling of assisting request base station.But the form of solicited message is not limited only to this, can also be the form only comprising ATR-NB signaling, and random access guiding data send to base station according to normal signalling format.

It should be noted that, although there is the limited situation of uplink in restricted movement terminal, but during owing to carrying out demodulation for the data of the insubstantial such as lead data and solicited message Content of Communication in base station, because the amount of information of this partial data is less, lower to transmission rate request, the demodulation grade of required use itself is lower, therefore, even if uplink is limited, base station also correctly can receive and demodulate the request that restricted movement terminal initiates.And for the substantial communication content that mobile terminal sends in upstream data, the amount of information of this partial data is comparatively large, and have certain requirement to transmission rate, correspondingly, base station needs to adopt higher demodulation grade to ensure message transmission rate; But, when mobile terminal moves to the limited region of up covering, when namely becoming restricted movement terminal, base station receive its send upstream data SINR will reduce, in order to can normal this upstream data of demodulation, base station needs to coordinate and reduces its demodulation grade.When base station reduces its demodulation grade, the message transmission rate between base station and mobile terminal can be affected, meanwhile, also can not ensure that upstream data can be correctly demodulated.

Base station, after the solicited message receiving the transmission of restricted movement terminal, returns response message to it, starts to carry out uplink to indicate restricted movement terminal.Concrete, the accidental access response message that response message can return to mobile terminal for base station, the form of the response message of the random access guiding the data namely mobile terminal received sent, be different from prior art, add the assistance transmission request that ATR-NB is carried out responding in this accidental access response message and confirm signaling; Also carry the necessary information of proper communication such as Sequence identity identification number (Identity, ID), Timing Advance, resource allocation information in this response message, carry out uplink for this restricted movement terminal according to this information.Correspondingly, restricted movement terminal, after receiving response message, sends its upstream data according to the instruction of base station.

While base station returns response message to restricted movement terminal, search in its service area and can provide the mobile terminal of assistance, as assist mobile terminal for restricted movement terminal.The service condition that wherein assist mobile terminal is current needs for idle condition, i.e. non-executive communication business; And be different from common mobile terminal of the prior art, assist mobile terminal need can in the resource specified by base station capture-data, that is, assist mobile terminal not only has normal communication capacity, the transmitting-receiving of communication data can be carried out with base station, can also according to the instruction of base station, the upstream data that other mobile terminals of active obtaining send in allocated resource.

If communication system is operated in time division duplex (Time Division Duplexing, TDD) under mode of operation, mobile terminal is transceiving data on different uplink and downlink timeslots, therefore, there is the assist mobile terminal of aforementioned capabilities, capture-data on the time slot of correspondingly specifying in base station.

If communication system is operated in Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD) under mode of operation, mobile terminal is transceiving data in different uplink and downlink communication frequencies, therefore, there is the assist mobile terminal of aforementioned capabilities, correspondingly utilize uplink communication frequency can not only send data and can also receive data, and utilize downlink communication frequency can not only receive data can also to send data.That is, the assist mobile terminal with aforementioned capabilities can not only utilize downlink communication frequency, other mobile terminals are given by the data retransmission that receives from base station, uplink communication frequency can also be utilized, receive the upstream data of other mobile terminals transmission and be transmitted to base station, can direct communication between mobile terminal.

But, in order to reduce the load of base station receives communication signaling, there is the mobile terminal of capture-data ability in the resource of specifying in base station, not report to base station it to have the state information of this ability.Therefore, after base station searches the mobile terminal for idle condition in its service area, namely send to the mobile terminal that searches and assist request, ask it to provide assistance for the restricted movement terminal that uplink is limited.Wherein, qualified assist mobile terminal can be one or more.

Step 101, receive described assist mobile terminal according to after described upstream data of assisting to ask the confirmation assistance information that returns and described restricted movement terminal to send according to described response message, uplink transmission resource is distributed, described restricted movement terminal is indicated to send data on first resource, indicate described assist mobile terminal capture-data utilize Secondary resource to forward on described first resource, wherein said first resource is orthogonal with described Secondary resource.

Be in the mobile terminal of idle condition after the assistance request receiving base station transmission, if this mobile terminal is common mobile terminal, namely not there is the ability resource of specifying in base station obtaining data, so correspondingly, this mobile terminal also cannot feed back to base station after receiving assistance request; And only there is the mobile terminal of this ability, after receiving assistance request, confirmation assistance information can be returned to base station, accept the request of base station, become assist mobile terminal.

Assist mobile terminal, after the assistance request receiving base station transmission, returns confirmation assistance information to base station.Restricted movement terminal, after the response message receiving base station transmission, sends its upstream data according to the instruction of base station.

It should be noted that, although restricted movement terminal exists the limited situation of uplink, still need to send its upstream data after receiving response message, and the information comprised in this upstream data is identical with of the prior art.Perform this operating procedure be because, this upstream data sent to base station of mobile terminal, it can be the entry condition of restricted movement terminal and assist mobile terminal distribution resource as base station, namely base station receives the confirmation assistance information that assist mobile terminal returns, and after receiving the upstream data of restricted movement terminal transmission, just can be respectively it and distribute the respective communication resource and perform subsequent operation.Further, identical with prior art, the current state information of this mobile terminal can be carried in the upstream data that mobile terminal sends, the operating state of mobile terminal can be known for base station in time.

Wherein, restricted movement terminal is that it distributes the upstream data sent before first resource, the upstream data sent on first resource according to the instruction of base station with it in base station, can identical also can not be identical.

The confirmation assistance information that base station is receiving assist mobile terminal and returns, and after the upstream data that returns of restricted movement terminal, carry out the sub-distribution again of resource, be respectively first resource required when restricted movement terminal distribution carries out uplink for it, for Secondary resource required when assist mobile terminal distribution carries out uplink for it, and first resource and Secondary resource are orthogonal, namely do not interfere with each other each other; After resource is distributed, send communication instruction to restricted movement terminal, indicate it to utilize first resource to send its upstream data, and send communication instruction to assist mobile terminal, indicate the data on its active obtaining first resource, and utilize Secondary resource by accessed data retransmission to base station.

Concrete, for LTE system, base station assigns is one or more continuous print RB to the resource of mobile terminal, and one or more RB distributing to one or more RB of restricted movement terminal and the assist mobile terminal of distribution has the orthogonality in time domain.When the embodiment of the present invention is applied to other communication systems, distribute to the communications resource of restricted movement terminal and assist mobile terminal, need equally to be mutually orthogonal, to ensure not interfere with each other in data transmit-receive process.

Be understandable that, above-mentioned first resource and Secondary resource are only the title difference of the resource distributing to different mobile terminal, irrelevant with order.

Step 102, respectively demodulation is carried out to the data that described first resource and described Secondary resource receive after merge, obtain signal strength signal intensity strengthen after upstream data.

Base station instruction restricted movement terminal sends data on first resource; Indicate the data on assist mobile terminal active obtaining first resource simultaneously, and on Secondary resource by this data retransmission to after base station, the upstream data that mobile terminal receive sends.The data that first resource and Secondary resource receive are carried out demodulation respectively, the data after demodulation is respectively merged, thus obtains final upstream data.

The upstream data that restricted movement terminal sends, does not arrive base station by means of only the space channel that propagation path between its with base station is corresponding; Also first arrive assist mobile terminal by the space channel that the propagation path between its with assist mobile terminal is corresponding, then reach base station by the space channel that assist mobile terminal is corresponding with the propagation path between base station.Therefore, the upstream data on the first resource that base station receives and Secondary resource is two-way upstream data, and after being merged by two paths of data signal, its signal strength signal intensity obtains enhancing than single-pass data signal.

The method for transmitting uplink data that the embodiment of the present invention provides, base station is after the request receiving the transmission of restricted movement terminal, searching in its service area to provide the mobile terminal of assistance as assist mobile terminal, when restricted movement terminal sends its upstream data, the data that assist mobile terminal sends according to this restricted movement terminal of the instruction active obtaining of base station, by the data retransmission that gets to base station, thus, base station can not only receive the upstream data that restricted movement terminal sends, and can also receive this upstream data that assist mobile terminal forwards.Therefore, the signal strength signal intensity of the upstream data that the restricted movement terminal that base station receives sends obtains enhancing, namely the method in the embodiment of the present invention can improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, contribute to the uplink communication quality promoting restricted movement terminal, effectively can strengthen the effect of up covering, thus be conducive to the equilibrium of up-downgoing coverage.

Further, on the basis of above-described embodiment, restricted movement terminal is within the triggered time, Reference Signal Received Power (the Reference Signal Receiving Power of neighbor cell, RSRP) maximum of the default bias scope of the RSRP of Serving cell is greater than, or the Reference Signal Received Quality of neighbor cell (Reference Signal Receiving Quality, RSRQ) is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

Concrete, assistance for uplink is carried out for the restricted movement terminal in base station service area, therefore need to judge whether mobile terminal belongs to restricted movement terminal, namely whether uplink exists limited situation, and the embodiment of the present invention adopts following determination methods.

Each base station periodically sends reference signal to the mobile terminal in its service area respectively, mobile terminal detects RSRP or RSRQ of its current service cell and neighbor cell after receiving reference signal, if the numerical value of RSRP or RSRQ of neighbor cell meets entry condition, then judge that this mobile terminal is restricted movement terminal, if do not meet entry condition, then this mobile terminal does not belong to restricted movement terminal, communicates with base station according to normal communication process.

Carry out to utilize RSRP being judged as example, the condition of carrying out is described in detail.

Setting Ms is the numerical value of the RSRP of the Serving cell that mobile terminal receives; Mn is the numerical value of the RSRP of the neighbor cell that mobile terminal receives; Off is the threshold value of a setting, this threshold value is determined by network measure, by setting off, Mn is made to be not that numerical values recited that is direct and Ms compares, but compare with the numerical values recited of Ms+off, off is an adjusted value, is reasonably reduced in the number range being applicable to comparing with Mn to make Ms; Hys is off thresholding side-play amount within the specific limits.Thus form the deviation range preset, namely the maximum of this deviation range is Ms+off+hys, and minimum value is Ms+off-hys.

If within the triggered time, the Mn of mobile terminal is greater than Ms+off+hys, then meet entry condition, judges that this mobile terminal is restricted movement terminal.Wherein, the start time point in triggered time is the moment that mobile terminal receives the reference signal that base station periodically sends, and the finish time after the time span that continuous systems pre-sets is the end time point in triggered time.

Owing to there is mathematical operation relation between RSRQ and RSRP, therefore, when judging based on RSRQ, in like manner.

The method for transmitting uplink data that the embodiment of the present invention provides, utilize base station periodically to mobile terminal send reference signal as basis for estimation, whether according to the signal strength signal intensity of the reference signal of its current Serving cell received and neighbor cell, mobile terminal judges whether it meets entry condition, be namely the restricted movement terminal that there is up covering limited situation.If mobile terminal judges that it is current as restricted movement terminal, then when it needs to carry out transmitting uplink data, request base station is assisted its uplink, to improve the signal strength signal intensity that base station receives its upstream data.The method that the embodiment of the present invention provides, initiatively request can be initiated targetedly by the mobile terminal needed by assisting, thus under the assistance of base station and assist mobile terminal, its uplink communication quality is enhanced, effectively can improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, strengthen the effect of the up covering in base station, be conducive to the equilibrium of base station up-downgoing coverage.

Further, on the basis of the various embodiments described above, described restricted movement terminal is within next triggered time, if the RSRP of neighbor cell is less than the minimum value of the default bias scope of the RSRP of Serving cell, or when the RSRQ of neighbor cell is less than the minimum value of default bias scope of the RSRQ of Serving cell, then switch to the state of untethered mobile terminal.

Concrete, if restricted movement terminal is within next triggered time, detect that the numerical value of RSRP or RSRQ of its neighbor cell meets and leave condition, then judge that this restricted movement terminal becomes untethered mobile terminal, can communicate with base station according to normal communication process; If do not meet and leave condition, then still communicate with base station according to the communication process of restricted movement terminal.

Carry out to utilize RSRP being judged as example, the condition of leaving is described in detail.

If within the triggered time, the Mn of restricted movement terminal is less than Ms+off-hys, then meet and leave condition, judge that this restricted movement terminal becomes untethered mobile terminal.When this untethered mobile terminal meets entry condition again, just can again become restricted movement terminal.

Mobile terminal upon actuation, when detecting RSRP or RSRQ of its Serving cell and neighbor cell first, if meet entry condition, is then restricted movement terminal, if do not meet entry condition, does not then belong to restricted movement terminal; When except detecting first, if testing result neither meets entry condition, also do not meet when leaving condition, then maintained the interior state judged of a triggered time it on constant.

The method for transmitting uplink data that the embodiment of the present invention provides, to mobile terminal be whether restricted movement terminal judge time, except being provided with entry condition, be also provided with the condition of leaving, namely utilize the maximum presetting span and minimum value as Rule of judgment.The restricted movement terminal having met entry condition can not meet entry condition because of within next triggered time, is judged as untethered mobile terminal immediately, and when demand fulfillment leaves condition, just can be judged as untethered mobile terminal.Therefore, when mobile terminal is positioned at the limited critical zone of up covering, between the state adopting the method in the embodiment of the present invention that mobile terminal can be avoided may to appear at limited and untethered, switch problem too frequently.

Further, on the basis of the various embodiments described above, described assist mobile terminal is untethered mobile terminal.

Concrete, when base station is searched and can be provided the assist mobile terminal of assistance for restricted movement terminal in its service area, the mobile terminal of assistance can be provided to be in idle condition except needs, and in the resource can specified in base station beyond capture-data, also need for untethered mobile terminal, namely this mobile terminal is within the first triggered time, does not meet entry condition; Meet the mobile terminal of condition of leaving, i.e. untethered mobile terminal, within the last triggered time, do not meet entry condition, or met the mobile terminal of entry condition, be i.e. restricted movement terminal, within the last triggered time, meet and leave condition.

The method for transmitting uplink data that the embodiment of the present invention provides, when assist mobile terminal is selected in base station in its service area, can become provides the mobile terminal of assistance to be in idle condition except demand fulfillment is current and except the ability with capture-data in the resource that can specify in base station, and it does not belong to the condition of restricted movement terminal to go back demand fulfillment.Assistance is provided by selecting there is not the limited mobile terminal of uplink for restricted movement terminal, more can effectively improve base station receive restricted movement terminal send the SINR of upstream data, improve the accuracy rate of base station demodulates upstream data, thus more effectively promote the uplink communication effect of restricted movement terminal, strengthen the up coverage effect of base station, be more conducive to the equilibrium of up-downgoing coverage.

Further, on the basis of the various embodiments described above, in the preset range of described assist mobile terminal between described restricted movement terminal and base station location.

Concrete, when base station is searched and can be provided the assist mobile terminal of assistance for restricted movement terminal in its service area, the mobile terminal of assistance can be provided also to need between base station and the position of asking the restricted movement terminal of assisting, according to Operation system setting, can in the scope of certain predetermined between base station and the position of restricted movement terminal.

Wherein, global positioning system (Global Positioning System, GPS) can be passed through in base station, or according to the information that mobile terminal reports when carrying out proper communication with base station, gets the positional information of each mobile terminal in service area.

The method for transmitting uplink data that the embodiment of the present invention provides, when assist mobile terminal is selected in base station in its service area, the mobile terminal of assistance can be provided, not only need for idle condition, have capture-data in the resource that can specify in base station ability, do not belong to beyond restricted movement terminal, also need its position between base station and restricted movement terminal.Select such assist mobile terminal, can make its receive and forwarding data time, the decay of signal in propagation path is as far as possible little, that is, because the distance limit of assist mobile terminal and base station and restricted movement terminal is in certain scope, can ensure that assist mobile terminal is transmitted to the signal strength signal intensity of the data of base station as far as possible, thus can ensure as far as possible the assist mobile terminal that base station receives send the signal strength signal intensity of data, therefore, more contribute to the uplink communication effect improving restricted movement terminal, improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, promote the effect of the up covering in base station, be conducive to the equilibrium of base station up-downgoing coverage.

Fig. 2 is the flow chart of the second method for transmitting uplink data one embodiment of the present invention, and as shown in Figure 2, the method comprises:

If step 200 to receive, after reference signal that the base station of Serving cell and neighbor cell periodically sends detects, judge that from as restricted movement terminal, then the base station to described Serving cell sends for asking the solicited message of assisting.

Each base station periodically sends reference signal to the mobile terminal in its service area respectively, mobile terminal to its current serving cell site received send the signal strength signal intensity of reference signal, with neighbor cell base station send reference signal signal strength signal intensity compare, judge it and current serving cell site carries out transmitting uplink data time, whether there is limited situation, if so, then judge that its current state is restricted movement terminal, need request base station to assist its uplink.

When mobile terminal needs to send upstream data to base station, but when there is the limited situation of uplink, by the mode to base station transmission request information, request base station provides assistance to its uplink.Concrete, when mobile terminal needs to send upstream data to base station, need first to send random access guiding data to base station, to ask access, therefore solicited message can be the form of the random access guiding data that restricted movement terminal sends to base station, be different from prior art, in this lead data, add ATR-NB signaling.But the form of solicited message is not limited only to this, can also be the form only comprising ATR-NB signaling, and random access guiding data send to base station according to normal signalling format.

Step 201, return according to described base station, instruction carries out the response message of uplink, sends upstream data.

Base station correspondingly returns response message, starts to carry out uplink to indicate restricted movement terminal after receiving the solicited message of restricted movement terminal transmission.Concrete, the accidental access response message that response message can return to mobile terminal for base station, difference and prior art, add the assistance transmission request carrying out responding for ATR-NB and confirm signaling in this accidental access response message; Also carry the necessary information of proper communication such as serial ID, Timing Advance, resource allocation information in this response message, carry out uplink for restricted movement terminal according to this information.Restricted movement terminal, after receiving response message, sends its upstream data according to the instruction of base station.

The assist mobile terminal that can provide assistance, after the solicited message receiving the transmission of restricted movement terminal, while returning response message, is also found to it in base station in its service area, and sends assistance request to the mobile terminal of the provided assistance searched.

Step 202, send according to the described base station received, indicate the indication information sending data on first resource, send upstream data.

The response message that restricted movement terminal sends according to base station, after sending its upstream data to base station.The upstream data that base station returns according to response message in reception restricted movement terminal, and receive assist mobile terminal according to after the confirmation assistance information of assisting to ask to return, carry out the sub-distribution again of transfer resource, base station is being restricted movement terminal distribution first resource, after carrying out uplink, sends indication information to this restricted movement terminal for it, indicate it on first resource, send data, correspondingly, this restricted movement terminal, according to the instruction of base station, sends its upstream data.

It should be noted that, restricted movement terminal is when performing step 201 and step 202, and the upstream data sent respectively can be identical, also can not be identical.

The method for transmitting uplink data that the embodiment of the present invention provides, by judging himself to there is the limited situation of uplink when mobile terminal, and when needing to carry out uplink, initiatively initiate request to base station, request base station is based on the assistance of uplink, and according to the instruction of base station, the resource of distributing sends upstream data.Adopt the method that the embodiment of the present invention provides, only assist for restricted movement terminal, less on the impact of other mobile terminals in communication system, and the instruction that restricted movement terminal sends according to base station correspondingly sends upstream data, assistance operation is completed by base station and assist mobile terminal, higher requirement can not be configured with to restricted movement terminal, also can not have an impact to the performance of restricted movement terminal.Do not affecting under restricted movement terminal carries out the prerequisite communicated, by coordinating of base station and assist mobile terminal, the SINR of the upstream data of received restricted movement effectively can be improved in base station side, improve the accuracy rate of base station demodulates upstream data, the effect of the up covering in effective raising base station, is conducive to the equilibrium of base station up-downgoing coverage.

Further, respectively state on the basis of embodiment upper, restricted movement terminal is within the triggered time, the RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

After the reference signal that mobile terminal sends in the base station receiving its Serving cell and neighbor cell, detect the base station in service sector that receives send RSRP or RSRQ of reference signal, and neighbor cell base station send RSRP or RSRQ of reference signal.If the numerical value of RSRP or RSRQ of neighbor cell meets entry condition, then judge that this mobile terminal is restricted movement terminal, if do not meet entry condition, then this mobile terminal does not belong to restricted movement terminal, communicates with base station according to normal communication process.

The method for transmitting uplink data that the embodiment of the present invention provides, utilize base station periodically to mobile terminal send reference signal as basis for estimation, whether according to the signal strength signal intensity of the reference signal of its current Serving cell received and neighbor cell, mobile terminal judges whether it meets entry condition, be namely the restricted movement terminal that there is up covering limited situation.If mobile terminal judges that it is current as restricted movement terminal, then when it needs to carry out transmitting uplink data, request base station is assisted its uplink, to improve the signal strength signal intensity that base station receives its upstream data.The method that the embodiment of the present invention provides, initiatively request can be initiated targetedly by the mobile terminal needed by assisting, thus under the assistance of base station and assist mobile terminal, its uplink communication quality is enhanced, effectively can improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, strengthen the effect of up covering, be conducive to the equilibrium of base station up-downgoing coverage.

The method for transmitting uplink data that the embodiment of the present invention provides, to mobile terminal be whether restricted movement terminal judge time, except being provided with entry condition, be also provided with the condition of leaving, namely utilize the maximum presetting span and minimum value as Rule of judgment.The restricted movement terminal having met entry condition can not meet entry condition because of within next triggered time, is judged as untethered mobile terminal immediately, and when demand fulfillment leaves condition, just can be judged as untethered mobile terminal.Therefore, when mobile terminal is positioned at the limited critical zone of up covering, adopt the method in the embodiment of the present invention, then avoid between state that mobile terminal may appear at limited and untethered and switch problem too frequently.

Fig. 3 is the flow chart of another embodiment of the second method for transmitting uplink data of the present invention, and as shown in Figure 3, after step 202, described method also comprises:

Be in idle condition and capture-data in the resource can specified in base station if step 300 is current, then according to the assistance request that the described base station received sends, return confirmation assistance information.

When mobile terminal needs to send upstream data to base station, but when being in the limited situation of uplink, this mobile terminal can to base station transmission request information, and request base station provides assistance to its uplink; Base station, after receiving this solicited message, can be searched and currently be in idle condition, i.e. the mobile terminal of non-executive communication business in its service area.

Base station is when selecting assist mobile terminal, and the mobile terminal being in idle condition in its service area sends assists request, but the mobile terminal with capture-data ability in the allocated resource of base station just can feed back to base station.Therefore, even if mobile terminal is within the last triggered time, restricted movement terminal is judged as, but it does not carry out transmitting uplink data, namely current is idle condition, and capture-data in the resource can specified in base station, equally can as assist mobile terminal.Under these circumstances, if restricted movement terminal receives the assistance request that base station sends, ask its for other restricted movement in this base station service area assistance is provided time, it returns confirmation assistance information to correspondingly base station.

Step 301, send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

Base station is receiving this confirmation assistance information, and after receiving the upstream data of asking the restricted movement terminal of base station assistance to send, and the mobile terminal of assistance can be provided to divide the resource being used in uplink respectively for the mobile terminal of request assistance.

Correspondingly, according to the instruction of base station, provide the mobile terminal of assistance, the restricted movement terminal that assistance is provided namely in the present embodiment, the data on active obtaining first resource, and utilize base station to be the Secondary resource that it distributes, by the data retransmission that gets to base station.

The method for transmitting uplink data that the embodiment of the present invention provides, when mobile terminal judges himself to there is the limited situation of uplink, if its current not executive communication business, and there is the ability resource of specifying in base station obtaining data, then can become assist mobile terminal equally.By under the assistance of assist mobile terminal, even if under the assistance of restricted movement terminal with assistance ability, the SINR of the upstream data making base station receive equally is enhanced, improve the accuracy rate of base station demodulates upstream data, be conducive to the lifting of the up coverage effect in base station, and be conducive to the equilibrium of base station up-downgoing coverage.

Further, on the basis of the various embodiments described above, above-mentioned steps 301 can also be:

Send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, after amplifying the data of catching on described first resource, utilize described Secondary resource to be transmitted to base station.

Concrete, the mobile terminal of assistance is provided, namely the restricted movement terminal that assistance is provided in the present embodiment, according to the instruction of base station, carry out reception and forwarding data time, after the data got are carried out to the amplification of signal strength signal intensity for first resource, the data retransmission that signal strength signal intensity is amplified by recycling Secondary resource is to base station.

The method for transmitting uplink data that the embodiment of the present invention provides, there is provided the mobile terminal of assistance after getting data according to the instruction of base station, after the signal strength signal intensity of these data is amplified, just be transmitted to base station, more can be conducive to the SINR improving the upstream data that base station receives, improve the accuracy rate of base station demodulates upstream data, be conducive to the effect promoting the up covering in base station, and be conducive to the equilibrium of base station up-downgoing coverage.

Fig. 4 is the flow chart of the third method for transmitting uplink data one embodiment of the present invention, and as shown in Figure 4, described method comprises:

Step 401, the assistance request sent according to the described base station received, return confirmation assistance information.

Currently in the embodiment of the present invention be in idle condition, i.e. non-executive communication business, and there is the mobile terminal of capture-data ability in the resource of specifying in base station, uplink can be provided to assist for needing the restricted movement terminal of carrying out transmitting uplink data, with strengthen base station receive restricted movement terminal send the signal strength signal intensity of upstream data.

In the service area of base station, have mobile terminal after its transmission request information, the mobile terminal meeting above-mentioned condition correspondingly can be found, as assist mobile terminal in base station in its service area.Therefore, by base station selected assist mobile terminal by receive base station the assistance that sends ask, and to ask according to this assistance, return confirmation assistance information to base station.

Step 402, send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

Correspondingly, according to the instruction of base station, the data on assist mobile terminal active obtaining first resource, and utilize base station to be the Secondary resource that it distributes, by the data retransmission that gets to base station.

The method for transmitting uplink data that the embodiment of the present invention provides, by after receiving the instruction that base station sends, according to the instruction active obtaining data of base station, and be transmitted to base station, effectively can improve the SINR that base station receives upstream data, promote the effect of the up covering in base station, be conducive to the equilibrium of base station up-downgoing coverage.

Further, on the basis of the various embodiments described above, above-mentioned steps 402 can also be:

Send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, after carrying out signal strength signal intensity amplification to the data of catching on described first resource, described Secondary resource is utilized to be transmitted to base station.

Fig. 5 is the flow chart of the third another embodiment of method for transmitting uplink data of the present invention, and as shown in Figure 4, before execution step 401, described method also comprises:

Step 400, to receive, reference signal that the base station of Serving cell and neighbor cell periodically sends detects, testing result is reported the base station of described Serving cell, described testing result comprises whether belonging to restricted movement terminal.

Each base station periodically sends reference signal to the mobile terminal in its service area respectively, mobile terminal to its current serving cell site received send the signal strength signal intensity of reference signal, with neighbor cell base station send reference signal signal strength signal intensity carry out detecting and comparing, judge it and current serving cell site carries out transmitting uplink data time, whether there is limited situation, if, then judge that its current state is restricted movement terminal, if not, then judge that its current state does not belong to restricted movement terminal.After detection completes, the testing result whether this mobile terminal being belonged to restricted movement terminal reports the base station of its Serving cell.

Because base station periodically sends the reference signal for detecting to mobile terminal, correspondingly, namely mobile terminal periodically detects the state whether it belongs to restricted movement terminal, and upon completion of the assays, result is reported base station, therefore, the operating state of each mobile terminal in its service area periodically can be known in base station.Whether so that base station is when selecting assist mobile terminal, can know that its service goes interior mobile terminal whether to be in idle condition, be restricted movement terminal, thus select qualified assist mobile terminal to provide the assistance of uplink for restricted movement terminal.

Be understandable that, base station and mobile terminal are for ensure proper communication, and base station knows the information such as the operating state of mobile terminal in its service area in time, and whether such as current is idle traffic state, and its positional information etc., mobile terminal regularly can report its state information to base station.The testing result described in the present embodiment, whether mobile terminal being belonged to restricted movement terminal reports base station, and its implementation and mobile terminal report implementation during other state information consistent to base station.

The method for transmitting uplink data that the embodiment of the present invention provides, whether mobile terminal exists the check result of uplink limited situation according to its periodically acquisition, correspondingly periodically report base station, make base station can know the operating state of mobile terminal in its service area in time, be conducive to for restricted movement terminal provides assistance, and be conducive to its selection to assist mobile terminal in service area.

Further, on the basis of the various embodiments described above, restricted movement terminal is within the triggered time, the RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

When providing the mobile terminal of assistance for restricted movement terminal, i.e. assist mobile terminal, due to the movement of its position, after becoming restricted movement terminal, its communication means is identical with the method that the request upstream data described in above-described embodiment strengthens, and repeats no more herein.

Method for transmitting uplink data provided by the invention, utilize base station periodically to mobile terminal send reference signal as basis for estimation, whether according to the signal strength signal intensity of the reference signal of its current Serving cell received and neighbor cell, mobile terminal judges whether it meets entry condition, be namely the restricted movement terminal that there is up covering limited situation.If mobile terminal judges that it is current as restricted movement terminal, then when it needs to carry out transmitting uplink data, request base station is assisted its uplink, to improve the signal strength signal intensity that base station receives its upstream data.The method that the embodiment of the present invention provides, initiatively request can be initiated targetedly by the mobile terminal needed by assisting, thus under the assistance of base station and assist mobile terminal, its uplink communication quality is enhanced, effectively can improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, strengthen the effect of up covering, be conducive to the equilibrium of base station up-downgoing coverage.

Be understandable that, various embodiments of the present invention are carried out in conjunction with ascending resource scheduling and hybrid automatic repeat-request (Hybrid Automatic Repeat Request, HARQ) mechanism, and method is identical with the application process related in proper communication flow process.

One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Fig. 6 is the structural representation of base station embodiment of the present invention, and as shown in Figure 6, this base station comprises the first base station module 11, second base station module 12 and the 3rd base station module 13.

Wherein, the solicited message that first base station module 11 sends for the restricted movement terminal limited according to the uplink received, return to described restricted movement terminal and be used to indicate the response message that it carries out uplink, and the assist mobile terminal being in idle condition in service area sends assistance request; Second base station module 12 is for receiving described assist mobile terminal according to described confirmation assistance information of assisting to ask to return, after the upstream data sent according to described response message with described restricted movement terminal, uplink transmission resource is distributed, described restricted movement terminal is indicated to send data on first resource, indicate described assist mobile terminal capture-data utilize Secondary resource to forward on described first resource, wherein said first resource is orthogonal with described Secondary resource; 3rd base station module 13 merges after carrying out demodulation respectively to the data that described first resource and described Secondary resource receive, and obtains the upstream data after signal strength signal intensity enhancing.

Further, on the basis of above-described embodiment, described restricted movement terminal is included in the triggered time, the Reference Signal Received Power RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the Reference Signal Received Quality RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

Concrete, the method that upstream data transmission is carried out in the base station that the embodiment of the present invention provides see the treatment step described in above-mentioned corresponding method embodiment, can repeat no more herein.

The base station that the embodiment of the present invention provides, after the request receiving the transmission of restricted movement terminal, searching in its service area to provide the mobile terminal of assistance as assist mobile terminal, when restricted movement terminal sends its upstream data, the data that assist mobile terminal sends according to this restricted movement terminal of the instruction active obtaining of base station, by the data retransmission that gets to base station, thus, base station can not only receive the upstream data that restricted movement terminal sends, and can also receive this upstream data that assist mobile terminal forwards.Therefore, the signal strength signal intensity of the upstream data that the restricted movement terminal that base station receives sends obtains enhancing, the SINR that base station receives upstream data can be improved, improve the accuracy rate of base station demodulates upstream data, contribute to the uplink communication quality promoting restricted movement terminal, effectively can strengthen the effect of up covering, thus be conducive to the equilibrium of up-downgoing coverage.

Fig. 7 is the structural representation of restricted movement terminal embodiment of the present invention, and as shown in Figure 7, this restricted movement terminal comprises the first restricted terminal module 21, second restricted terminal module 22 and the 3rd restricted terminal module 23.

Wherein, first restricted terminal module 21 for receive, reference signal that the base station of Serving cell and neighbor cell periodically sends detects, judge certainly as after restricted movement terminal, the base station to described Serving cell sends for asking the solicited message of assisting; Second restricted terminal module 22 for return according to described base station, instruction carries out the response message of uplink, sends upstream data; 3rd restricted terminal module 23 for send according to the described base station received, indicate the indication information sending data on first resource, send upstream data.

Further, on the basis of above-described embodiment, described restricted movement terminal is included in the triggered time, the RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

Further, on the basis of the various embodiments described above, described restricted movement terminal also comprises the 4th restricted terminal module 24 and the 5th restricted terminal module 25.

Wherein, the 4th restricted terminal module 24 is in idle condition for current and in the resource that base station is specified during capture-data, according to the assistance request that the described base station received sends, can return confirmation assistance information; 5th restricted terminal module 25 for send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

Further, on the basis of the various embodiments described above, 5th restricted terminal module 25 also for, send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, after carrying out signal strength signal intensity amplification to the data of catching on described first resource, described Secondary resource is utilized to be transmitted to base station.

Concrete, the method that the restricted movement terminal that the embodiment of the present invention provides carries out upstream data transmission see the treatment step described in above-mentioned corresponding method embodiment, can repeat no more herein.

The restricted movement terminal that the embodiment of the present invention provides, by judging himself to there is the limited situation of uplink when mobile terminal, and when needing to carry out uplink, initiatively initiate request to base station, request base station is based on the assistance of uplink, and according to the instruction of base station, the resource of distributing sends upstream data.Adopt the method that the embodiment of the present invention provides, only assist for restricted movement terminal, less on the impact of other mobile terminals in communication system, and the instruction that restricted movement terminal sends according to base station correspondingly sends upstream data, assistance operation is completed by base station and assist mobile terminal, higher requirement can not be configured with to restricted movement terminal, also can not have an impact to the performance of restricted movement terminal.Meanwhile, the restricted movement terminal being in idle condition also can as assist mobile terminal, for other restricted movement terminals provide the assistance of uplink.Do not affecting under restricted movement terminal carries out the prerequisite communicated, by coordinating of base station and assist mobile terminal, the SINR of the upstream data of received restricted movement effectively can be improved in base station side, improve the accuracy rate of base station demodulates upstream data, the effect of the up covering in effective raising base station, is conducive to the equilibrium of base station up-downgoing coverage.

Fig. 8 is the structural representation of assist mobile terminal embodiment of the present invention, and as shown in Figure 8, this assist mobile terminal comprises the first assistance terminal module 31 and second and assists terminal module 32.

Wherein, first assists terminal module 31 for the assistance request sent according to the described base station received, and returns confirmation assistance information; Second assist terminal module 32 for send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

Further, on the basis of above-described embodiment, second assist terminal module 32 also for, send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, after carrying out signal strength signal intensity amplification to the data of catching on described first resource, described Secondary resource is utilized to be transmitted to base station.

Further, on the basis of the various embodiments described above, described assist mobile terminal also comprises the 3rd and assists terminal module 33.3rd assist terminal module 33 for receive, reference signal that the base station of Serving cell and neighbor cell periodically sends detects, testing result is reported the base station of described Serving cell, described testing result comprises whether belonging to restricted movement terminal.

Further, on the basis of the various embodiments described above, described restricted movement terminal is included in the triggered time, the RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

Concrete, the method that the assist mobile terminal that the embodiment of the present invention provides carries out upstream data transmission see the treatment step described in above-mentioned corresponding method embodiment, can repeat no more herein.

The assist mobile terminal that the embodiment of the present invention provides, by after receiving the instruction that base station sends, according to the instruction active obtaining data of base station, and be transmitted to base station, effectively can improve the SINR that base station receives upstream data, improve the accuracy rate of base station demodulates upstream data, promote the effect of the up covering in base station, be conducive to the equilibrium of base station up-downgoing coverage.

Fig. 9 is the structural representation of communication system of the present invention, as shown in Figure 9, this communication system to comprise in above-described embodiment in arbitrary described base station 1, above-described embodiment arbitrary at least one described assist mobile terminal 3 in arbitrary described restricted movement terminal 2 and above-described embodiment, and communicates to connect between base station 1, restricted movement terminal 2 and at least one assist mobile terminal 3.

Concrete, base station 1 periodically sends reference signal to the mobile terminal in its service area, and mobile terminal, according to the intensity of the Serving cell received and neighbor cell reference signal, judges whether it exists the limited situation of uplink, if exist, then it becomes restricted movement terminal 2.When restricted movement terminal 2 needs to carry out transmitting uplink data, send request the solicited message of assistance to base station 1; After base station 1 receives the solicited message of restricted movement terminal 2 transmission, the response message indicating it to carry out transmitting uplink data is returned to it, in its service area, select qualified mobile terminal as assist mobile terminal 3 simultaneously, and send assistance request to assist mobile terminal 3; Assist mobile terminal 3, after receiving assistance request, returns confirmation assistance information to base station 1; Base station 1 is receiving the upstream data of restricted movement terminal 2 transmission, and after receiving the confirmation assistance information that assist mobile terminal 3 returns, carry out the reallocation of transfer resource, instruction restricted movement terminal 2 sends its upstream data on first resource, and indicate the data on assist mobile terminal 3 active obtaining first resource, and utilize Secondary resource that the data got are sent to base station 1; Base station 1 merges after the data that first resource and Secondary resource receive are carried out demodulation respectively, the upstream data after being enhanced.

The base station related in the communication system that the embodiment of the present invention provides, restricted movement terminal and assist mobile terminal, the base station that the various embodiments described above all can be adopted to provide, restricted movement terminal and assist mobile terminal, repeat no more herein.

The communication system that the embodiment of the present invention provides, base station is after the request receiving the transmission of restricted movement terminal, searching in its service area to provide the mobile terminal of assistance as assist mobile terminal, when restricted movement terminal sends its upstream data, the data that assist mobile terminal sends according to this restricted movement terminal of the instruction active obtaining of base station, by the data retransmission that gets to base station, thus, base station can not only receive the upstream data that restricted movement terminal sends, and can also receive this upstream data that assist mobile terminal forwards.Therefore, the signal strength signal intensity of the upstream data that the restricted movement terminal that base station receives sends obtains enhancing, the SINR that base station receives upstream data can be improved, improve the accuracy rate of base station demodulates upstream data, contribute to the uplink communication quality promoting restricted movement terminal, effectively can strengthen the effect of up covering, thus be conducive to the equilibrium of up-downgoing coverage.

Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims

1. a method for transmitting uplink data, is characterized in that, comprising:

2. method for transmitting uplink data according to claim 1, is characterized in that, described restricted movement terminal comprises:

Within the triggered time, the Reference Signal Received Power RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the Reference Signal Received Quality RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell.

3. method for transmitting uplink data according to claim 2, it is characterized in that, described restricted movement terminal is within next triggered time, if the RSRP of neighbor cell is less than the minimum value of the default bias scope of the RSRP of Serving cell, or when the RSRQ of neighbor cell is less than the minimum value of default bias scope of the RSRQ of Serving cell, then switch to the state of untethered mobile terminal.

4. method for transmitting uplink data according to claim 3, is characterized in that, described assist mobile terminal is untethered mobile terminal.

5. method for transmitting uplink data according to claim 4, is characterized in that, in the preset range of described assist mobile terminal between described restricted movement terminal and base station location.

6. a method for transmitting uplink data, is characterized in that, comprising:

7. method for transmitting uplink data according to claim 6, is characterized in that, described restricted movement terminal comprises:

Within the triggered time, the RSRP of neighbor cell is greater than the maximum of the default bias scope of the RSRP of Serving cell, or the RSRQ of neighbor cell is greater than the mobile terminal of the maximum of the default bias scope of the RSRQ of Serving cell;

Correspondingly, described restricted movement terminal is within next triggered time, if the RSRP of neighbor cell is less than the minimum value of the default bias scope of the RSRP of Serving cell, or when the RSRQ of neighbor cell is less than the minimum value of default bias scope of the RSRQ of Serving cell, then switch to the state of untethered mobile terminal.

8. method for transmitting uplink data according to claim 6, is characterized in that, described method also comprises:

Be in idle condition if current and capture-data in the resource can specified in base station, then according to the assistance request that the described base station received sends, return confirmation assistance information;

9. method for transmitting uplink data according to claim 8, it is characterized in that, that the described base station that described basis receives sends, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, to receive and forwarding data comprises:

10. a base station, is characterized in that, comprising:

11. base stations according to claim 10, is characterized in that, described restricted movement terminal comprises:

12. base stations according to claim 11, it is characterized in that, described restricted movement terminal is within next triggered time, if the RSRP of neighbor cell is less than the minimum value of the default bias scope of the RSRP of Serving cell, or when the RSRQ of neighbor cell is less than the minimum value of default bias scope of the RSRQ of Serving cell, then switch to the state of untethered mobile terminal.

13. base stations according to claim 12, is characterized in that, described assist mobile terminal is untethered mobile terminal.

14. base stations according to claim 13, is characterized in that, in the preset range of described assist mobile terminal between described restricted movement terminal and base station location.

15. 1 kinds of restricted movement terminals, is characterized in that, comprising:

16. restricted movement terminals according to claim 15, is characterized in that, described restricted movement terminal comprises:

17. restricted movement terminals according to claim 15, is characterized in that, described restricted movement terminal also comprises:

4th restricted terminal module, is in idle condition for current and in the resource that base station is specified during capture-data, according to the assistance request that the described base station received sends, can return confirmation assistance information;

5th restricted terminal module, for send according to the described base station received, indicate capture-data on described first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data.

18. restricted movement terminals according to claim 17, is characterized in that, described 5th restricted terminal module also for:

19. 1 kinds of communication systems, is characterized in that, comprise as arbitrary in claim 10-14 as described in base station, as arbitrary in claim 15-18 as described in restricted movement terminal, and assist mobile terminal; Described base station, to communicate to connect between described restricted movement terminal and described assist mobile terminal; Wherein,

Described assist mobile terminal, comprising:

First assists terminal module, for the assistance request sent according to the base station received, returns confirmation assistance information;

Second assists terminal module, for send according to the described base station received, indicate capture-data on first resource and utilize Secondary resource to be transmitted to the indication information of base station, receive and forwarding data, merge after demodulation being carried out respectively to the data that described first resource and described Secondary resource receive to make described base station, obtain the upstream data after signal strength signal intensity enhancing, wherein, described first resource and described Secondary resource are the resource of uplink.