CN103369611A

CN103369611A - A random access processing method, switch processing method, and apparatus

Info

Publication number: CN103369611A
Application number: CN2012100906765A
Authority: CN
Inventors: 祝建建; 谢峰; 陈玉芹; 陈琳; 黄莹
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-03-30
Filing date: 2012-03-30
Publication date: 2013-10-23
Anticipated expiration: 2032-03-30
Also published as: CN103369611B

Abstract

The invention provides a random access processing method, switch processing method, and apparatus. The random access processing method comprises determining whether UE is capable of receiving a low-power random access response message from a base station and notifying the base station of a determined result. The random access processing method resolves a problem that the base station cannot determine whether the UE is capable of receiving a low-power random access response message from a base station in correlated technology, and increases the performance of a system random access mechanism.

Description

Random access processing method, switching handling method and device

Technical field

The present invention relates to the communications field, in particular to a kind of random access processing method, switching handling method and device.

Background technology

In radio honeycomb communication system, the base station is the equipment that wireless access is provided for subscriber equipment (User Equipment is referred to as UE), and a base station may comprise one or more Serving cells.The residential quarter can provide communication service for the UE of certain geographic range, may there be different coverages different residential quarters, usually can the residential quarter be divided into macrocell (Macro Cell), Microcell (Pico Cell), picocell (Femto Cell) according to the coverage of residential quarter and the purpose of deployment, correspondingly, provide the base station of these community user access services to can be described as again macro base station, little base station, Home eNodeB.

Development along with the cordless communication network technology, can appear at the scene that identical or adjacent area is covered by two kinds or more of dissimilar residential quarters, for example, in Macro Cell coverage, dispose Pico Cell and bear load balancing or coverage enhancement, again for example, the domestic consumer also can dispose Femto Cell and bear indoor covering in Macro Cell coverage.Thisly jointly finish the scene that wireless access covers by the polytype residential quarter and can be called heterogeneous network (heterogeneous network is referred to as hetnet) scene.Under the heterogeneous network scene, some new network design scheme and technology constantly occur, for example, and in order to allow Pico Cell serve more user also and then to bear more service traffics, can introduce cell edge expansion (Cell Range Extension is referred to as CRE) technology.But the interference of the Macro Cell that the user who is in accordingly the cell edge extended area is subject to also increases accordingly.In order to reduce the interference for the Pico residential quarter, under the heterogeneous network scene of existing Macro Cell and Pico Cell coexistence, can introduce and be almost gap frame (Almost Blank Subframe, referred to as ABS), can't transmit downlink service data on the Physical Downlink Shared Channel (Physical Downlink Shared Channel is referred to as PDSCH) of Macro residential quarter on the ABS subframe.Above-mentioned mechanism has reduced the interference of interfered cell for neighbor cell, but has also sacrificed the power system capacity of interfered cell simultaneously, and for example, in above-mentioned scene, the power system capacity of Macro can constantly descend along with increasing of ABS number of subframes.In order to address this problem, a kind of scheme that reduces the ABS subframe of power delivery is suggested, and namely interfered cell is not being caused under the prerequisite of severe jamming, and interfered cell uses low-power to transmit downlink service data at the Physical Downlink Shared Channel of ABS subframe.In this kind mechanism, interference base station is based on the present wireless environment of its service UE of mutual judgement between itself and the service UE, and and then the UE that can be on the PDSCH of low-power ABS subframe be in the good state of channel condition for part the service of downlink service data transmission is provided.

Can also strengthen further the random access mechanism of system after the introducing low-power ABS subframe, the base station can be almost on the gap frame part UE transmission accidental access response in low-power.But according to the operation mechanism in the correlation technique, the base station is when receiving the random access code of UE, owing to can't accurately judge whether to use low-power that this UE is sent accidental access response message, causing failed situation when using low-power that this UE is sent accidental access response message, to occur sending.

Can't judge that for base station in the correlation technique whether UE can receive the problem that lower powered accidental access response causes, and not yet proposes effective solution at present.

Summary of the invention

The invention provides a kind of random access processing method, switching handling method and device, with solve at least base station in the correlation technique can't judge UE whether can receive problem that lower powered accidental access response caused one of at least.

According to an aspect of the present invention, provide a kind of random access processing method, having comprised: judged whether user terminal UE can receive the lower powered accidental access response message from the base station; Notify described base station with the result who judges.

Preferably, judge that the lower powered accidental access response message whether described UE can receive from the base station comprises: the parameter of obtaining described UE persistent district and/or described UE persistent district neighbor cell; The described UE persistent district that obtains and/or parameter and the threshold value of described UE persistent district neighbor cell are compared, judge according to result relatively whether described UE can receive the lower powered accidental access response message from described base station.

Preferably, the parameter of described UE persistent district and/or described UE persistent district neighbor cell comprise following one of at least: the wireless signal strength RSRP of described UE persistent district and/or persistent district neighbor cell, the wireless signal strength of the public guide frequency position of described UE persistent district and/or persistent district neighbor cell, described UE persistent district and/or persistent district neighbor cell wireless signal Signal to Interference plus Noise Ratio strength S INR, described UE persistent district and/or persistent district neighbor cell wireless signal signal to noise ratio strength S NR, described UE persistent district and/or persistent district neighbor cell wireless signal signal interference ratio strength S IR, the wireless signal Signal to Interference plus Noise Ratio strength S INR of described UE persistent district and/or persistent district neighbor cell public guide frequency position, described UE persistent district and/or persistent district neighbor cell wireless signal signal to noise ratio strength S NR, described UE persistent district and/or persistent district neighbor cell wireless signal signal interference ratio strength S IR, the wireless signal channel quality states RSRQ of described UE persistent district and/or persistent district neighbor cell is on the descending full bandwidth of described UE persistent district and/or persistent district neighbor cell or specify the wireless signal channel quality states RSRQ of subband on wide.

Preferably, described threshold value is obtained one of in the following manner: receive the described threshold value that described base station sends, and/or draw described threshold value according to the threshold parameter from described base station, wherein, described threshold parameter comprises the different capacity proportioning parameter of the dissimilar subframe of base station configuration.

Preferably, when the link failure between described UE and described base station is rebuild described link, judge that the lower powered accidental access response message whether described UE can receive from described base station comprises, judge whether described UE received the configuration information from described base station before link failure, wherein, described configuration information is used for dispatching described UE transceiving data on the low-power subframe; Judge according to the judged result that whether receives from the described configuration information of base station whether described UE can receive the lower powered accidental access response message from described base station.

Preferably, notify described base station to comprise the result who judges, obtain the random access channel resource information from the configuration of described base station, wherein, described random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set; Notify described base station with the result of described judgement by the channel resource of the described random access channel resource information appointment of obtaining.

Preferably, described UE judges whether described UE can receive the lower powered accidental access response message from described base station.

Preferably, also comprise, after the low-power accidental access response message that receives from described base station, send the first indication information to described base station, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

A kind of switching handling method is provided according to a further aspect in the invention, comprise, be applied to user terminal UE and switched to target BS by source base station, described source base station or described target BS judge according to the parameter of described target BS whether described UE can receive the lower powered accidental access response message from the base station.

Preferably, described source base station judges that according to the parameter of described target BS the lower powered accidental access response message whether described UE can receive from the base station comprises, described source base station receives the parameter of the target BS that described UE obtains; Described source base station judges according to the parameter value of described target BS whether described UE can receive the lower powered accidental access response message from the base station; Described source base station is notified described target BS with described judged result.

Preferably, also comprise, the needed measurement constraint information of the parameter that described source base station configuration UE is obtained described target BS, wherein, described measurement constraint information comprises for the time domain and/or the frequency domain position information that limit UE measurement target base station.

Preferably, described target BS judges that according to the parameter of described target BS the lower powered accidental access response message whether described UE can receive from the base station comprises, described source base station will send to described target BS from the parameter of the target BS of described UE; Described target BS foundation judges from the parameter of the described target BS of described source base station whether described UE can receive the lower powered accidental access response message from the base station.

Preferably, after described source base station judges whether described UE can receive lower powered accidental access response message from the base station, send the first indication information to described target BS, wherein, described the first indication information is used to indicate described target BS and whether can transmits lower powered accidental access response message to described UE.

A kind of random access processing method is provided according to another aspect of the invention, has comprised: the information that sends random access channel resource to terminal use UE; Wherein, the channel resource of the information appointment of described random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel, the frequency domain position set on the Random Access Channel, the channel resource of random access lead code arrangement set; Receive indication information by described random access channel resource, wherein, whether described indication information is used to indicate described UE can receive lower powered accidental access response message from the base station.

Preferably, also comprise: be that described UE can receive in the situation from the lower powered accidental access response message of base station in described judged result, send described lower powered accidental access response message to described UE.

Preferably, sending described lower powered accidental access response message to described UE comprises: described base station judges whether to send described accidental access response message under normal power, in the situation that described base station can't send described accidental access response message at normal power, send described lower powered accidental access response message to described UE.

Preferably, also comprise, after sending described lower powered accidental access response message to described UE, receive the first indication information from described UE, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

Preferably, also comprise, send the second indication information to described UE, wherein, described the second indication information is used to indicate and sends the corresponding subframe of data service to described UE is the low-power subframe.

Preferably, described the second indication information of carrying one of at least in the following manner: the mode of indicating by newly-increased coding method in descending control format indicating channel is carried described the second indication information; In described descending control format indicating channel, add described the second indication information; Add described the second indication information in the public search space in the down control channel of low-power subframe; Add described the second indication information in the privately owned search volume in the down control channel of low-power subframe; Add described the second indication information in the zone of the increase in the down control channel of low-power subframe.

A kind of random access processing unit is provided in accordance with a further aspect of the present invention, has comprised: the first judge module is used for judging whether user terminal UE can receive the lower powered accidental access response message from the base station; Notification module, the result who is used for judging notifies described base station.

Preferably, described the first judge module comprises: the first acquisition module, for the parameter of obtaining described UE persistent district and/or described UE persistent district neighbor cell; Comparison module compares for the described UE persistent district that will obtain and/or parameter and the threshold value of described UE persistent district neighbor cell, judges according to result relatively whether described UE can receive the lower powered accidental access response message from described base station.

Preferably, described the first judge module comprises: the second judge module, when rebuilding described link for the link failure between described UE and described base station, judge whether described UE received the configuration information from described base station before link failure, wherein, described configuration information is used for dispatching described UE transceiving data on the low-power subframe; The 3rd judge module is used for judging according to the judged result that whether receives from the described configuration information of base station whether described UE can receive the lower powered accidental access response message from described base station.

Preferably, described notification module comprises, the second acquisition module, be used for obtaining the random access channel resource information from the configuration of described base station, wherein, described random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set; The second notification module is used for notifying described base station with the result of described judgement by the channel resource of the described random access channel resource information appointment of obtaining.

Preferably, also comprise the first sending module, be used for after the low-power accidental access response message that receives from described base station, send the first indication information to described base station, wherein, whether described the first indication information is used to indicate described UE can receive the data of dispatching on the low-power subframe.

According to of the present invention again on the other hand, a kind of switch processing device is provided, being applied to user terminal UE is switched to target BS by source base station, comprise, the 4th judge module is used for described source base station and/or described target BS and judges according to the parameter of described target BS whether described UE can receive the lower powered accidental access response message from the base station.

Preferably, also comprise, the second sending module, be used for after described source base station judges whether described UE can receive lower powered accidental access response message from the base station, send the first indication information to described target BS, wherein, described the first indication information is used to indicate described target BS and whether can transmits lower powered accidental access response message to described UE.

Provide a kind of random access processing unit also on the one hand according to of the present invention, having comprised: the 3rd sending module is used for to the information of terminal use UE transmission random access channel resource; Wherein, the channel resource of the information appointment of described random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel, the frequency domain position set on the Random Access Channel, the channel resource of random access lead code arrangement set; The first receiver module is used for receiving indication information by described random access channel resource, and wherein, whether described indication information is used to indicate described UE can receive lower powered accidental access response message from the base station.

Preferably, also comprise: the 4th sending module, being used in described judged result is that described UE can receive in the situation from the lower powered accidental access response message of base station, sends described lower powered accidental access response message to described UE.

Preferably, also comprise: the second receiver module, be used for after sending described lower powered accidental access response message to described UE, receive the first indication information from described UE, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

Preferably, also comprise: the 5th sending module, be used for sending the second indication information to described UE, wherein, described the second indication information is used to indicate and sends the corresponding subframe of data service to described UE is the low-power subframe.

By the present invention, adopt and judge whether user terminal UE can receive the lower powered accidental access response message from the base station; Notify described base station to solve in the correlation technique base station result who judges and to judge that whether UE can receive the problem that lower powered accidental access response causes, and has improved the performance of the random access mechanism of system.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart according to the random access processing method of the embodiment of the invention;

Fig. 2 is the flow chart according to the switching handling method of the embodiment of the invention;

Fig. 3 is the flow chart according to another random access processing method of the embodiment of the invention;

Fig. 4 is the structured flowchart according to a kind of random access processing unit of the embodiment of the invention;

Fig. 5 is the structured flowchart according to the first judge module in the random access processing unit of the embodiment of the invention;

Fig. 6 is the another structured flowchart according to the first judge module in the random access processing unit of the embodiment of the invention;

Fig. 7 is the structured flowchart according to notification module in the random access processing unit of the embodiment of the invention;

Fig. 8 is a kind of according to the preferred embodiment of the invention structured flowchart of random access processing unit;

Fig. 9 is the structured flowchart according to the switch processing device of the embodiment of the invention;

Figure 10 is the structured flowchart of switch processing device according to the preferred embodiment of the invention;

Figure 11 is the structured flowchart according to the random access processing unit of the embodiment of the invention;

Figure 12 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit;

Figure 13 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit;

Figure 14 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit;

Figure 15 is the scene schematic diagram of according to the preferred embodiment of the invention typical heterogeneous network;

Figure 16 is the basic flow sheet according to the Idle state UE method for network access of the embodiment of the invention two;

Figure 17 is the basic flow sheet according to the connected state UE handover operation of the embodiment of the invention three;

Figure 18 is the basic flow sheet according to the UE reconstruction operation of the embodiment of the invention four.

Embodiment

Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.

In the present embodiment, can't judge for base station in the correlation technique whether UE can receive the problem that lower powered accidental access response causes, propose the complete scheme of a cover.

In the present embodiment, provide a kind of random access processing method, Fig. 1 is the flow chart according to the random access processing method of the embodiment of the invention, and as shown in Figure 1, this flow process comprises the steps:

Step S102 judges whether UE can receive the lower powered accidental access response message from the base station;

Step S104 is with the as a result informing base station of judging.

Pass through above-mentioned steps, at first whether can receive from the accidental access response message that is lower than normal power of base station UE and judge, again above-mentioned judged result is notified to the base station, so that can judging UE, the base station can receive lower powered accidental access response message, solved in the correlation technique base station and can't judge that whether UE can receive the problem that lower powered accidental access response causes, and has improved the performance of the random access mechanism of system.

In step S102, judge that the mode whether UE can receive from the lower powered accidental access response message of base station has a variety of, as a kind of preferred implementation, the mode that can compare by the threshold value to the signal parameter of the persistent district of this UE and/or this persistent district neighbor cell and thresholding is judged.For example, step S102 can comprise: the parameter of obtaining UE persistent district and/or UE persistent district neighbor cell; The UE persistent district that obtains and/or parameter and the threshold value of UE persistent district neighbor cell are compared, judge according to result relatively whether UE can receive the lower powered accidental access response message from the base station.By the way, judge that based on the criterion of system's setting whether UE can use low-power that it is carried out accidental access response by the base station, and this judged result is transferred to the base station, finish corresponding accidental access response operation with assistant base station.

Preferably, the parameter of UE persistent district and/or UE persistent district neighbor cell can comprise following one of at least: in this way, so that the scope of application of this programme is wider, occupation mode is more flexible.

Preferably, above-mentioned threshold value one of can be in the following manner obtained: receive the threshold value that the base station sends, and/or draw threshold value according to the threshold parameter from the base station.Wherein, this threshold parameter can be the parameter from the base station, and for example, this threshold parameter can be the different capacity proportioning parameter of the dissimilar subframe of base station configuration.Power ratio calculation of parameter according to subframe obtains threshold value.The type of parameter also can comprise following one of at least: described UE persistent district wireless signal strength RSRP, the wireless signal strength RSRP of described UE persistent district public guide frequency position, described UE persistent district and/or described UE persistent district neighbor cell wireless signal Signal to Interference plus Noise Ratio strength S INR, described UE persistent district and/or described UE persistent district neighbor cell wireless signal signal to noise ratio strength S NR, described UE persistent district and/or described UE persistent district neighbor cell wireless signal signal interference ratio strength S IR, wireless signal Signal to Interference plus Noise Ratio strength S INR and/or SNR and/or the SIR of described UE persistent district and/or described UE persistent district neighbor cell public guide frequency position; Described UE persistent district and/or described UE persistent district neighbor cell wireless signal channel quality states RSRQ are on described UE persistent district and/or the descending full bandwidth of described UE persistent district neighbor cell or specify the wireless signal channel quality states RSRQ of subband on wide.

In the implementation process of step S104, the mode of the as a result informing base station judged is had a variety of, for example, can be by channel notification also can be by a certain specific channel notification to the base station to the base station arbitrarily.And this specific channel namely can be in advance unique appointment, also can be by obtaining with base station negotiate.As a kind of preferred implementation, can obtain the random access channel resource information from the base station configuration, wherein, this random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set; With the result that the judges channel resource informing base station by the random access channel resource information appointment of obtaining.

When the link failure between this UE and this base station is rebuild this link, the lower powered the accidental access response message whether above-mentioned UE of judgement can receive from the base station comprises, judge whether UE received the configuration information from the base station before link failure, wherein, configuration information receives business datum for scheduling UE in the low-power subframe; Judge according to the judged result that whether receives from the configuration information of base station whether this UE can receive the lower powered accidental access response message from the base station, particularly, when the configuration information that receives from the base station, just judge that this UE can receive the low-power accidental access response message from the base station, when the configuration information that do not receive from the base station, just judge that this UE can not receive the low-power accidental access response message from the base station.

As a kind of preferred implementation, the judgement among the step S102 can be undertaken by UE self, also can be that carry out other base stations, even also might be that carry out this base station self.For example, when UE is in Idle state (IDLE attitude), can judge whether UE can receive the lower powered accidental access response message from the base station by UE self, and when UE is in connected state, can replace UE to judge by other base stations.For example, when UE is in connected state and need to switches from source base station to target BS, can carry out judgement among the step S102 by source base station, even can also be that target BS is judged.By the way, improved the flexibility of this programme.

A kind of switching handling method also is provided in the present embodiment, and Fig. 2 is the flow chart according to the switching handling method of the embodiment of the invention, and as shown in Figure 2, the method comprises the steps:

Step S202, UE is switched to target BS by source base station;

Step S204, source base station and/or target BS judge according to the parameter of target BS whether UE can receive lower powered accidental access response message.

The present embodiment passes through above-mentioned steps, when UE is switched to target BS by source base station, this source base station and/or target BS are according to the parameter of target BS, this UE can be judged and whether the accidental access response message that is lower than normal power can be received, thereby can learn that can UE receive lower powered accidental access response message, solved in the correlation technique base station and can't judge that whether UE can receive the problem that lower powered accidental access response causes, and has improved the performance of the random access mechanism of system.

In step S204, source base station judges that according to the parameter of target BS the mode whether UE can receive lower powered accidental access response message has a variety of, as a kind of preferred implementation, the source base station configuration UE is obtained the needed measurement constraint information of parameter of this target BS, wherein, this measurement constraint information comprises for the time domain that limits Random Access Channel, the positional information of frequency domain, and source base station receives UE obtains target BS according to above-mentioned measurement constraint information parameter; Source base station judges according to the parameter of target BS whether UE can receive the lower powered accidental access response message from the base station; Source base station is with judged result notification target base station.In this way, can target BS can get access to this UE receive lower powered accidental access response message, thereby judges whether that can send lower powered accidental access response message to this UE provides foundation for this target BS switches at UE after complete.

In addition, in step S204, target BS self also can judge whether this UE can receive lower powered accidental access response message according to the parameter of target BS, judgment mode also has a variety of, as a kind of preferred implementation, can be that source base station will send to this target BS from the parameter of this target BS of UE; This target BS judges according to above-mentioned parameter whether UE can receive the lower powered accidental access response message from the base station.In this way, can target BS also can get access to this UE receive lower powered accidental access response message, thereby judges whether that can send lower powered accidental access response message to this UE provides foundation for this target BS switches at UE after complete.

When implementing, the scene when no matter UE is in the idle attitude and accesses at random, still be in various types of handoff scenario, and detect link and disconnect when need to again link, and, judge whether to receive accidental access response message from the base station no matter be by UE, still obtain the judged result from source base station or target BS, can be again send the first indication information to the base station that needs send business datum, whether this first indication information is used to indicate UE can be received in the data of dispatching on the low-power subframe.

A kind of random access processing method also is provided in the present embodiment, and Fig. 3 is the flow chart according to another random access processing method of the embodiment of the invention, and as shown in Figure 3, the method comprises the steps:

Step S302, send the information of random access channel resource to terminal use UE, wherein, this random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel, the frequency domain position set on the Random Access Channel, the channel resource of random access lead code arrangement set;

Step S304 receives indication information by random access channel resource, and wherein, whether this indication information is used to indicate UE can receive lower powered accidental access response message from the base station.

Pass through above-mentioned steps, can whether UE can be received from the judged result of the lower powered accidental access response message of base station according to the Random Access Channel of base station appointment and notify to the base station, thereby make the base station can learn that can UE receive lower powered accidental access response message, solve in the correlation technique base station and can't judge whether UE can receive the problem that lower powered accidental access response causes, improved the success rate that the base station sends lower powered accidental access response.

Preferably, be that UE can receive in the situation from the lower powered accidental access response message of base station in above-mentioned judged result, the base station one of can be in such a way sends lower powered accidental access response message to UE: mode one, when UE can receive lower powered accidental access response message, will only be restricted to the mode of this UE transmission message and send message in low-power ABS subframe; Mode two, when UE can receive lower powered accidental access response message, the preferential normal power subframe of using sends accidental access response message to this UE, in the situation that can't use the normal power subframe that UE is sent this message, use low-power ABS subframe that this UE is sent accidental access response message.For example, in the situation that following one of at least, use low-power ABS subframe that this UE is sent accidental access response message: the channel that uses the normal power subframe to send random accessing message takes, uses the normal power subframe to send that sequential that accidental access response message can't satisfy system requires and/or the delay requirement of the UE receiving random access response of system requirements.

More preferably, after having sent lower powered accidental access response message to UE, send the second indication information to this UE, wherein, the second indication information is used to indicate and sends the corresponding subframe of data service to UE is the low-power subframe.Carrying this second indication information can mode can adopt following several: indicate by new coding method in the descending control format indicating channel of low-power subframe the base station, in this channel, directly add indication information, add indication information in the public search space in the down control channel of low-power subframe, add indication information in the privately owned search volume in the down control channel of low-power subframe, the indication information that adds in the zone that in the down control channel of low-power subframe, newly increases.Above-mentioned indication information all is to be the low-power subframe in order to indicate subframe corresponding to UE.

Fig. 4 is the structured flowchart according to a kind of random access processing unit of the embodiment of the invention, and as shown in Figure 4, this device comprises the first judge module 42 and notification module 44, and the below describes this device.

The first judge module 42 is used for judging whether user terminal UE can receive the lower powered accidental access response message from the base station; Notification module 44, the result who is used for judging notifies this base station.

Fig. 5 is that as shown in Figure 5, this first judge module 42 comprises the first acquisition module 52 and comparison module 54 according to the structured flowchart of the first judge module 42 in the random access processing unit of the embodiment of the invention.The below describes this first judge module 42.The first acquisition module 52 is for the parameter of obtaining this UE persistent district and/or this UE persistent district neighbor cell; Comparison module 54 compares for this UE persistent district that will obtain and/or parameter and the threshold value of this UE persistent district neighbor cell, judges according to result relatively whether this UE can receive the lower powered accidental access response message from this base station.

Fig. 6 is the another structured flowchart according to the first judge module 42 in the random access processing unit of the embodiment of the invention, and as shown in Figure 6, this first judge module 42 comprises the second judge module 62 and the 3rd judge module 64.The below describes this first judge module 42.The second judge module 62, when rebuilding described link for the link failure between UE and base station, judge whether this UE received the configuration information from the base station before link failure, wherein, this configuration information is used for this UE of scheduling and receives business datum in the low-power subframe; The 3rd judge module 64 is used for judging according to the judged result that whether receives from the configuration information of base station whether UE can receive the lower powered accidental access response message from the base station.

Fig. 7 is the structured flowchart according to notification module 44 in the random access processing unit of the embodiment of the invention, and as shown in Figure 7, this notification module 44 comprises the second acquisition module 72 and the second notification module 74.The below describes this notification module 44.The second acquisition module 72, be used for obtaining the random access channel resource information from this base station configuration, wherein, this random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set; The second notification module 74 is used for the result that will judge and notifies this base station by the channel resource of this random access channel resource information appointment of obtaining.

Fig. 8 is a kind of according to the preferred embodiment of the invention structured flowchart of random access processing unit, as shown in Figure 8, also comprise this device all modules in comprising Fig. 4, the first sending module 82, be used for after the low-power accidental access response message that receives from the base station, send the first indication information to this base station, wherein, whether this first indication information is used to indicate UE can be received in the data of dispatching on the low-power subframe.

A kind of switch processing device also is provided in embodiments of the present invention, Fig. 9 is the structured flowchart according to the switch processing device of the embodiment of the invention, as shown in Figure 9, this application of installation is switched to target BS by source base station in user terminal UE, this device comprises the 4th judge module 92, the 4th judge module 92 is used for this source base station and/or this target BS and judges according to the parameter of this target BS whether this UE can receive the lower powered accidental access response message from the base station.

Figure 10 is the structured flowchart of switch processing device according to the preferred embodiment of the invention, as shown in figure 10, this device is except comprising the 4th judge module, also comprise, the second sending module 1002 is used for sending the first indication information to this target BS after source base station judges whether described UE can receive accidental access response message from the base station, wherein, this first indication information is used to indicate UE and whether can be received in the data of dispatching on the low-power subframe.

A kind of random access processing unit also is provided in embodiments of the present invention, and Figure 11 is the structured flowchart according to the random access processing unit of the embodiment of the invention, and as shown in figure 11, this device comprises the 3rd sending module 1102 and the first receiver module 1104.The below describes this device.The 3rd sending module 1102 is used for to the information of terminal use UE transmission random access channel resource; Wherein, the channel resource of the information appointment of this random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel, the frequency domain position set on the Random Access Channel, the channel resource of random access lead code arrangement set; The first receiver module 1104 is connected to the 3rd sending module 1102, is used for receiving indication information by this random access channel resource, and wherein, whether this indication information is used to indicate this UE can receive lower powered accidental access response message from the base station.

A kind of random access processing unit also is provided in embodiments of the present invention, Figure 12 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit, as shown in figure 12, this device all modules in comprising Figure 11, also comprise the 4th sending module 1202, be used for this judged result can receive situation from the lower powered accidental access response message of base station for this UE under, to this this lower powered accidental access response message of UE transmission.

Figure 13 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit, as shown in figure 13, this device all modules in comprising Figure 11, also comprise the second receiver module 1302, also comprise: the second receiver module 1302 is used for receiving the first indication information from this UE send described lower powered accidental access response message to UE after, wherein, this first indication information is used to indicate UE and whether can be received in the data of dispatching on the low-power subframe.

Figure 14 is the structured flowchart that accesses at random according to the preferred embodiment of the invention processing unit, as shown in figure 14, this device all modules in comprising Figure 11, also comprise the 5th sending module 1402, also comprise: the 5th sending module 1402, be used for sending the second indication information to this UE, wherein, described the second indication information is used to indicate and sends the corresponding subframe of data service to this UE is the low-power subframe.

Describe below in conjunction with preferred embodiment, following preferred embodiment combines above-described embodiment and preferred implementation thereof.

Figure 15 is typical according to the preferred embodiment of the invention heterogeneous network (heterogeneous network, referred to as hetnet) the scene schematic diagram, as shown in figure 15, macro base station residential quarter (Macro Cell) and little base station cell (Pico Cell) have been comprised in this heterogeneous network scene.Comprised in the Pico Cell overlay area that wherein the CRE zone is to improve the coverage of Pico Cell.In the Macro residential quarter, introduced and fallen lower powered ABS subframe and come being in the UE of channel condition good position, for example the UE of the Macro central area among Figure 15 provides service to promote the power system capacity of Macro Cell under the prerequisite that Pico CRE zone UE is not produced severe jamming.

Can serve impact to the random access mechanism band of UE after introducing the ABS subframe.UE is linked into Serving cell by random access procedure, and in random access procedure, UE sends random access code to selected residential quarter, and random access code sends at specific Physical Random Access Channel.The base station is after Physical Random Access Channel receives random access code, can send accidental access response to UE in the accidental access response window, this accidental access response is to dispatch by the Downlink Control Information (DCI) on the public search space of down control channel (PDCCH) (common search space).The public search space of each subframe can only hold at most 4 Downlink Control Information, and (one or more) random access code that each accidental access response correspondence receives at a Physical Random Access Channel in random access.In fact, because public search space also needs to carry the Downlink Control Information for dispatching patcher message and beep-page message, therefore, the Physical Random Access Channel number that can respond on 1 shielded subframe may be n (n＜=4).Can see from top analysis, accidental access response chance number can produce larger impact to the random access capacity of UE in the system and corresponding collision probability.If cannot transmission of accidental access response message on the ABS subframe, then can the reduction system in the random access capacity of UE and the corresponding random access collision probability that promotes.If on low-power ABS subframe, the UE that can receive the low-power accidental access response is carried out the accidental access response operation, then can improve the random access capacity of system and reduce accordingly the random access collision probability.But according to the existing system operation mechanism, UE do not have and the base station between mutual its whether be in and can receive lower powered accidental access response message, do not judge whether that exactly can be almost the gap frame in low-power carries out accidental access response to UE therefore the base station has way when receiving the random access code of UE.

In following preferred embodiment, can't judge for base station in the correlation technique whether UE can receive the problem that lower powered accidental access response causes, UE judges based on the criterion of system's setting whether oneself can receive lower powered accidental access response message, and this judged result is transferred to the base station, finish corresponding accidental access response operation with the performance of the network insertion mechanism of elevator system with assistant base station, and the base station can also be at the lower powered accidental access response of normal sub-frames use transmission to this UE based on the indication information of its low-power accidental access response that can receive of UE notice.

Embodiment one

In this preferred embodiment, a kind of accidental access method has been proposed, the method can comprise:

Step 1, UE judges can or cannot receive lower powered accidental access response message;

Step 2, it can or cannot receive lower powered accidental access response message this UE indication base station.

The subframe of preferably, carrying this lower powered accidental access response message can comprise reduce power and/or zero energy be almost gap frame and/or normal sub-frames; This base station can be base station under the interfered cell under the heterogeneous network scene, for example, can comprise the Macro base station under Macro and the Pico coexistence scene.

Preferably, UE judges that the method that can or cannot receive lower powered accidental access response message can comprise: UE carries out and measures operation, threshold value based on measurement result and system configuration compares, and the result judges whether it can receive lower powered accidental access response message based on the comparison.

Preferably, the method that UE carry out to measure operation can comprise following one of at least: UE measures wireless signal strength (the Reference Signal Received Power of persistent district, referred to as RSRP), and/or, comprise the wireless signal strength of the cell common pilots position that measures persistent district;

UE measures wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (the Signal to Noise Ratio of persistent district, referred to as SNR) and/or wireless signal signal interference ratio intensity (Signal to Interference Ratio, referred to as SIR), and further comprise wireless signal Signal to Interference plus Noise Ratio intensity and/or wireless signal signal to noise ratio intensity and/or the wireless signal signal interference ratio intensity of the cell common pilots position that measures persistent district;

UE measures wireless signal channel quality states (the Reference Signal Received Quality of persistent district, referred to as RSRQ), and/or, comprise on the cell downlink full bandwidth that measures persistent district or specify the wireless signal channel quality states of subband on wide, this measurement subband is wide is indicated to this UE by the measurement target base station.

Preferably, UE method that carry out to measure operation can comprise following one of at least:

UE measures the wireless signal strength (RSRP) of persistent district neighbor cell, and/or, comprise the wireless signal strength of the cell common pilots position that measures the persistent district neighbor cell;

UE measures wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (SNR) and/or the wireless signal signal interference ratio intensity (SIR) of persistent district neighbor cell, and further comprises wireless signal Signal to Interference plus Noise Ratio intensity and/or wireless signal signal to noise ratio intensity and/or the wireless signal signal interference ratio intensity of the cell common pilots position that measures the persistent district neighbor cell;

UE measures the wireless signal channel quality states (RSRQ) of persistent district neighbor cell, and/or, comprise on the cell downlink full bandwidth that measures the persistent district neighbor cell or specify the wireless signal channel quality states of subband on wide, this measurement subband is wide is indicated to this UE by the measurement target base station.

Preferably, the UE mode of obtaining the threshold value of system configuration can comprise following one of at least:

UE directly receive from the base station clear and definite wireless signal strength measure threshold value, wireless signal Signal to Interference plus Noise Ratio value measure threshold value, wireless signal channel quality states measure the threshold value one of at least; This measurement threshold value can comprise the combination of a parameter or a plurality of parameters, for example, can comprise: the parameter that the residential quarter is relevant, parameter that carrier frequency is relevant, parameter that rate travel is relevant, adjust in the factor parameter one of at least, described compound mode comprises linearity or the nonlinear combination computing of many kinds of parameters;

Obtain this threshold value the parameter of being correlated with in the residential quarter that UE sends from the base station indirectly, for example, the power ratio coaptation that the residential quarter that UE sends from the base station is relevant goes out this measurements threshold value, and the power ratio parameter that this residential quarter is relevant can comprise that non-on the polytype descending sub frame that UE receives carry the power on the data resource unit on the cell reference signals symbol and carry difference or the ratio of the power on the data resource unit on the cell reference signals symbol.

Preferably, UE can extrapolate by above-mentioned direct measurement threshold value the configuration information of residential quarter polytype descending sub frame, for example, this configuration information can comprise: the power ratio value on the polytype descending sub frame comprises the power on the data resource unit and the difference or the ratio that carry the power on the data resource unit on the cell reference signals symbol on the non-reference signal symbol that carries the residential quarter.

Preferably, UE judge its mode that whether can receive lower powered accidental access response message comprise following one of at least:

When UE is not less than the thresholding of system configuration for current persistent district measurement result, then UE judges that it can receive lower powered accidental access response message, and/or, when UE was less than or equal to the thresholding of system configuration for current persistent district measurement result, then UE judged that it cannot receive lower powered accidental access response message;

When UE is less than or equal to the thresholding of system configuration for current persistent district neighbor cell measurements, then UE judges that it can receive lower powered accidental access response message, and/or, when UE was not less than the thresholding of system configuration for current persistent district neighbor cell measurements, then UE judged that it cannot receive lower powered accidental access response message;

When the system configuration of thresholding UE is not less than to(for) ratio or the difference of current persistent district and neighbor cell measurements, then UE judges that it can receive lower powered accidental access response message, and/or, when the system configuration of thresholding UE is less than or equal to to(for) ratio or the difference of current persistent district and neighbor cell measurements, then UE judges that it cannot receive lower powered accidental access response message.

Preferably, the UE mode obtaining above-mentioned direct measurement threshold value or calculate the parameter of this measurement threshold value from the base station can comprise following one of at least: UE obtains from the system broadcast message that the base station sends, UE obtains from the RRC signaling message that the base station sends, UE obtains from the descending control message that the base station sends.

Preferably, UE judges that it can receive lower powered accidental access response message or judge that it cannot receive after the lower powered accidental access response message, can use specific random access channel resource to carry out random access operation.

For example, this specific random access channel resource can comprise following one of at least: the upper specific time-domain position set of Random Access Channel (Physical Random Access Channel is referred to as PRACH), specific frequency domain position set, specific random access lead code arrangement set.Preferably, the mode that UE obtains this specific random access channel resource can comprise following one of at least: the system broadcast message of UE by sending from the base station, RRC signaling message, the descending control message one of at least in, obtain following set one of at least: specific time-domain position set, specific frequency domain location sets, specific random access lead code arrangement set.

Preferably, the mode that the base station one of configures in the set of specific time-domain position, specific frequency domain position set, the specific random access lead code arrangement set at least can comprise: for the UE that can receive lower powered accidental access response message, the base station configures it and selects the specific time-domain position set that is applicable near radio transmission, specific time domain and/or the frequency domain position in the frequency domain position set, send in random access lead code sequence, the specific random access lead code arrangement set in the specific random access lead code one of at least; For the UE that cannot receive lower powered accidental access response message, the base station configures it and selects specific time domain and/or frequency domain position in the specific time domain that is applicable to remote wireless transmission, the frequency domain position set, send in random access lead code sequence, the specific random access lead code arrangement set in the specific random access lead code one of at least.

Preferably, UE can be by sending the random access lead code sequence with the specific time domain in the set of specific time domain and/or frequency domain position and/or frequency domain position and/or send in the specific random access lead code arrangement set specific random access lead code to come informing base station whether it can receive lower powered accidental access response message.

Preferably, the base station receive UE in the set of specific time domain and/or frequency domain position specific time domain and/or the random access lead code that sends of frequency domain position and/or send specific random access lead code in the specific random access lead code arrangement set, judge that then this UE can receive lower powered accidental access response message; Further, lower powered accidental access response message can be selected to send to this UE in this base station.Preferably, this base station also can receive the not random access lead code that sends of the specific time domain in the set of specific time domain and/or frequency domain position and/or frequency domain position and/or do not send specific random access lead code in the specific random access lead code arrangement set of UE, judges that then this UE cannot receive lower powered accidental access response message.

Preferably, this base station can comprise for the operation that the UE that can receive lower powered accidental access response message carries out: the base station preferentially uses normal power that UE is sent accidental access response message, uses low-power that UE is sent accidental access response message under the accidental access response message scene can't using normal power that UE is sent.Can't use normal power that UE is sent the accidental access response message scene and can comprise that the channel that uses normal power to send accidental access response message has taken and/or used normal power to send that sequential that accidental access response message can't satisfy system requires and/or the delay requirement of the UE receiving random access response of system requirements.

Preferably, UE judges in its situation that can receive lower powered accidental access response message, then correspondingly can be almost monitoring reception accidental access response on the gap frame in low-power; When this UE judges in its situation that cannot receive lower powered accidental access response message, monitoring reception accidental access response on the low-power subframe not correspondingly then.

Preferably, link failure when occuring in UE, whether can be by the low-power subframe (for example before link failure based on this UE, it can be the ABS subframe, also can be normal sub-frames) state of service judges whether it can receive lower powered accidental access response message in the corresponding link re-establishment process of link failure, and and then by with send on the specific time domain in the set of specific time domain and/or frequency domain position and/or the frequency domain position random access lead code and/or specifically the specific random access lead code in the random access lead code arrangement set come informing base station whether it can receive lower powered accidental access response message.

Preferably, UE judges that the method that whether can receive lower powered accidental access response message before its link failure can comprise: UE receive before link failure that the base station sends for the power ratio parameter of low-power subframe and/or receive the measurement constraint subset that the base station sends, then UE judges can receive lower powered accidental access response message in the corresponding link re-establishment process of link failure; UE do not receive before link failure that the base station sends for the power ratio parameter of low-power subframe and/or receive the measurement constraint subset that the base station sends, then UE judges cannot receive lower powered accidental access response message in the corresponding link re-establishment process of link failure.

Preferably, the set of employed specific time domain and/or frequency domain position and/or specific random access lead code arrangement set can be configured before link failure occurs UE by the base station in the random access operation of this UE in the corresponding link re-establishment process of this link failure, collocation method can comprise that the base station using the RRC signaling message as UE configures low power subframe (for example, can be to be almost the gap frame, also can be normal sub-frames) corresponding power ratio parameter, and/or the base station send measurement constraint subset the time configure simultaneously corresponding specific time domain, and/or frequency domain position set and/or specific random access lead code arrangement set, and/or be configured by the mode that the base station sends configuration information, for example, can pass through system broadcast information and/or other RRC signaling message, and/or the descending control signaling message arrangement is to UE.

Preferably, UE can be at the up signaling message indicating of follow-up random access operation its be the low-power subframe (for example, can be to be almost the gap frame, also can be normal sub-frames) UE that can serve, for example add in the uplink signaling after receiving accidental access response message directly or indication information indirectly, for example, in the uplink signaling, directly add a bit and whether can carry out the downstream data traffic transmission in lower powered subframe to UE, such as, this bit is to represent that this UE can be in the transmission of the enterprising row data of lower powered subframe business at 1 o'clock, and bit is to represent that this UE can not carry out data traffic transmission in lower powered subframe at 0 o'clock.Again for example, this UE and base station appoint in advance, between UE and base station, carried out data traffic transmission and just represented that this base station can be professional at low-power subframe transmitting data, and when not having corresponding data traffic transmission just expression can not transmit in lower powered subframe.The base station judges whether and can provide the downstream data traffic transmission for UE on the PDSCH of low-power subframe channel based on the Indication message of UE.Need to prove, the processing of adopting such Indication message to indicate the base station to carry out the professional transmission of follow-up data goes for various scenes, for example, being in switching, UE that the UE Network with Random Multiple Access System of Idle attitude, the UE that is in connected state carry out type is in the process that link failure then rebuilds.

Preferably, UE is switching to when supporting low-power to be almost gap frame base station, the source base station of this handover operation by and UE between judge whether this UE can receive lower powered accidental access response message alternately.Wherein, above-mentioned judgment mode can comprise following one of at least: the wireless signal strength (RSRP) of the Target cell that measures that UE reports, the radio signal quality (RSRQ) of the Target cell that measures that UE reports, the wireless signal Signal to Interference plus Noise Ratio intensity (SINR) of the Target cell that measures that UE reports, the wireless signal signal to noise ratio intensity (SNR) of the Target cell that measures that UE reports, the threshold value that whether is not less than one of at least system configuration in the wireless signal signal interference ratio intensity (SIR) of the Target cell that measures that UE reports, if be not less than the threshold value of system configuration, then UE can receive lower powered accidental access response message, if be lower than the threshold value of system configuration, then UE cannot receive lower powered accidental access response message.A kind of mode in addition is: whether UE has been configured the measurement constraint subset for Target cell, if be configured, then UE can receive lower powered accidental access response message, if be not configured, then UE cannot receive lower powered accidental access response message.

Preferably, UE is when switching to this support low-power subframe base station, the source base station of this handover operation judges that UE could be after Target cell receives lower powered accidental access response message, then in sending to the signaling message of target BS, comprise indication information, wherein, this signaling message comprises: the handover request message in the X2 handover operation flow process, or the source base station in the S1 handover operation flow process sends to the handoff requirement message of mobile management entity and the handover request message that mobile management entity sends to target BS.Above-mentioned indication information can comprise: whether comprise the measurement constraint subset information of UE and/or UE in the signaling message according to the parameter message of measuring the target BS that the constraint subset measures, for example, the wireless signal strength of target BS (RSRP) and/or radio signal quality (RSRQ) and/or wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (SNR) and/or wireless signal signal interference ratio intensity (SIR) and/or directly indicate UE could receive the indication information of low-power accidental access response.

Preferably, target BS is behind the signaling message that carries this indication information that receives above-mentioned source base station transmission, judge further then whether UE can receive lower powered accidental access response message, wherein, this determination methods can comprise following one of at least: whether the wireless signal strength (RSRP) of the Target cell that measures that the UE that target BS receives reports is not less than the threshold value of system configuration, the radio signal quality (RSRQ) of the Target cell that measures that UE reports, the wireless signal Signal to Interference plus Noise Ratio intensity (SINR) of the Target cell that measures that UE reports, the wireless signal signal to noise ratio intensity (SNR) of the Target cell that measures that UE reports, whether the wireless signal signal interference ratio intensity (SIR) of the Target cell that measures that UE reports is not less than the threshold value of system configuration, and determines whether and receive direct indication information.

Preferably, target BS distribute in (PRACH) on the specific Random Access Channel upper specific time-domain position set, frequency domain position set, the specific random access lead code arrangement set one of at least, the UE that carries out handover operation is given in indication, and send to source base station by the response message of the above-mentioned signaling message in corresponding X2 handover operation flow process or the S1 handover operation flow process, and send to this UE by source base station by switching command message; The response message of this signaling message comprises the handover request ack message in the X2 handover operation, or target BS sends to the handover request ack message of mobile management entity and the switching command message that corresponding mobile management entity sends to source base station in the S1 handover operation.

Preferably, target BS is in the handover request ack message that sends to source base station or send to by mobile management entity in the switching command message of source base station, comprises that following information one of at least: for power ratio parameter, the low-power subframe distribution message bit pattern of low-power subframe, measure the constraint subset information.

Preferably, target BS receive this UE in the set of specific time domain, frequency domain position specific time domain and/or the specific random access lead code in the random access lead code that sends of frequency domain position, specific random access lead code arrangement set that this UE sends in one of at least the time, can judge then whether UE can receive lower powered accidental access response message.

Preferably, this target BS can be carried out following operation for the UE that switches access: the base station preferentially uses normal power that UE is sent accidental access response message, uses low-power that UE is sent accidental access response message under the accidental access response message scene can't using normal power that UE is sent.Wherein, above-mentioned can't use normal power to UE send the accidental access response message scene can comprise following one of at least: the channel that uses normal power to send accidental access response message takes, uses normal power to send that sequential that accidental access response message can't satisfy system requires and/or the delay requirement of the UE receiving random access response of system requirements.

Preferably, this UE based on from the switching command parameter of source base station, get access to for the power ratio parameter on the low-power subframe, low-power subframe distribution message bit pattern, measure in the constraint subset information one of at least, receive the data that target BS sends in the handover operation process.

Preferably, target BS can be in down control channel indication low-power subframe when sending data, comprise that following methods one of at least: indicate by new coding method in the descending control format indicating channel of low-power subframe the base station, and/or in this indicating channel, directly add indication information, add indication information in the public search space in the down control channel of low-power subframe, add indication information in the privately owned search volume in the down control channel of low-power subframe, add indication information in the zone that in the down control channel of low-power subframe, newly increases.Indicating subframe corresponding to UE by above-mentioned indication information is the low-power subframe.

Preferably, when introducing multiple power type descending sub frame, in order to finish above-mentioned initial access, switch access, to rebuild access, system introduces corresponding polytype measurement threshold value allows UE judge the accidental access response whether it sends to receive all kinds power only, and can introduce further polytype specific random access channel resource and allow UE use, and then allow the ability of its receiving random access response message of UE informing base station.

UE is in random access procedure, UE sends random access code to selected residential quarter, random access code sends at specific Physical Random Access Channel, the base station can send accidental access response to UE in the accidental access response window after Physical Random Access Channel receives random access code.But the random response chance number that the base station can be carried out on a descending sub frame is no more than 4, and this also shows the probability that the descending access of UE exists certain quilt to conflict, particularly in the more scene of number of users.By the scheme in this preferred embodiment, system can also be used for the PDSCH channel on the low-power ABS subframe to carry the accidental access response chance of some, will increase like this chance of UE random response, and and then improve random access opportunity of success, and after also being used for carrying accidental access response message on the PDSCH channel on the low-power ABS subframe, random access chance is identical with accidental access response chance under not introducing ABS subframe scene, therefore can not introduce the scene the inside employing of low-power ABS subframe introducing the random access capacity of some systems under the ABS subframe scene and the conclusion of researching and analysing and obtaining of collision probability.In addition, the scheme in this preferred embodiment has also correspondingly proposed number of mechanisms and has improved the network insertion mechanism introduced after the low-power ABS subframe with the optimization system performance.

Embodiment two

Figure 16 is the basic flow sheet according to the Idle state of the embodiment of the invention two (Idle attitude) UE method for network access, as shown in figure 16, among Figure 16 the base station be under the Macro+Pico coexistence scene introducing the Macro base station of low-power ABS subframe, UE is the Idle attitude UE that resides in the Macro residential quarter.The step of the method is as follows:

Step S1602, Idle attitude UE receive the threshold value thresholding of system configuration to judge whether it can receive low-power accidental access response and corresponding specific random access channel resource from the base station.

UE receives the threshold value thresholding of the system configuration that the base station sends to judge whether it can be almost gap frame receiving random access response and corresponding specific random access channel resource in low-power by system broadcast message.Concrete, the SIB2 (SystemInformationBlock2) of the system broadcast message that this parameter can send from the base station and/or UE enter in the RRC signaling message that receives before the Idle attitude and/or the descending control message (indication of PDCCH channel) and carry alternatively.

Wherein, this UE method of obtaining the threshold value of system configuration comprises:

UE directly receives clear and definite wireless signal strength (Reference Signal Received Power from the base station, referred to as RSRP) measurement threshold value and/or wireless signal Signal to Interference plus Noise Ratio intensity (Signal to Interference plus Noise Ratio, referred to as SINR) threshold value and/or wireless signal signal to noise ratio intensity (Signal to Noise Ratio, referred to as SNR) threshold value and/or wireless signal signal interference ratio intensity (Signal to Interference Ratio, referred to as SIR) threshold value and/or wireless signal channel quality states (Reference Signal Received Quality is referred to as RSRQ) measurement threshold value; This measurement threshold value can be made of a parameter or a plurality of parameter combinations; Comprise: the parameter that the residential quarter is relevant, the parameter that carrier frequency is relevant, parameter, the adjustment factor parameter that rate travel is relevant.

Obtain this threshold value the parameter of being correlated with in the residential quarter that UE sends from the base station indirectly, comprise: the power ratio coaptation that the residential quarter that UE sends from the base station is relevant goes out this measurements threshold value, and the power ratio parameter that this residential quarter is relevant comprises that UE receives non-on the polytype descending sub frame and carries on the cell reference signals symbol on the data resource unit power and carry on the cell reference signals symbol difference of power or ratio on the data resource unit.

Wherein, this UE method of obtaining the specific random access channel resource of system configuration comprises:

This specific random access channel resource comprises: (PRACH) upper specific time domain and/or frequency domain position set and/or specific random access lead code arrangement set on the Random Access Channel; And comprise further: UE is by obtaining this specific time domain and/or frequency domain position set and/or specific random access lead code arrangement set the system broadcast message that sends from the base station and/or RRC signaling message and/or the descending control message.

Specifically, this random access channel resource can be to repartition to obtain or redesign to obtain in existing random access channel resource, and can indicate that maybe cannot to receive the UE of lower powered accidental access response message private or also can share with the common UE of part earlier version by receiving lower powered accidental access response message.The mode of (PRACH) upper specific time domain and/or frequency domain position set comprises independent indication and joint instructions on its indicating Random Access Channel: 1) independent indication, the configuration of the corresponding cover Physical Random Access Channel of each index of channel resource.Can receive lower powered accidental access response message UE cannot receive maybe that lower powered accidental access response message UE receives can be by searching allocation list to know the available Physical Random Access Channel of base station configuration behind some index values.2) joint instructions, this information can be indicated a subset of the Physical Random Access Channel that all UE can use, (can receive in other words lower powered accidental access response message UE maybe cannot receive lower powered accidental access response message UE and whether can use arbitrarily Physical Random Access Channel perhaps to indicate whether to use the Physical Random Access Channel that can use all UE, whether can receive in other words lower powered accidental access response message UE maybe cannot receive lower powered accidental access response message UE and use Physical Random Access Channel to be restricted), perhaps whether the indication special mechanism that maybe cannot receive lower powered accidental access response message UE to receiving lower powered accidental access response message UE is opened indirectly.Wherein, the base station also alternatively indication can receive lower powered accidental access response message UE and maybe cannot receive the random access lead code arrangement set that lower powered accidental access response message UE can use.

Step S1604, UE judges based on measuring whether it can be almost receiving random access response on the gap frame in low-power.

Preferably, the method for this UE execution measurement operation can comprise:

UE measures persistent district and/or described UE persistent district neighbor cell wireless signal strength (RSRP), and and then can comprise the wireless signal strength RSRP that measures persistent district and/or described UE persistent district neighbor cell public guide frequency position;

UE measures persistent district and/or described UE persistent district neighbor cell wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (SNR) and/or wireless signal signal interference ratio intensity (SIR), and further comprises wireless signal Signal to Interference plus Noise Ratio intensity and/or wireless signal signal to noise ratio intensity and/or the wireless signal signal interference ratio intensity of the cell common pilots position that measures persistent district and/or described UE persistent district neighbor cell;

UE measures the wireless signal channel quality states (RSRQ) of persistent district and/or described UE persistent district neighbor cell, and and then can comprise on the cell downlink full bandwidth that measures persistent district and/or described UE persistent district neighbor cell or specify the wireless signal channel quality states of subband on wide, this measurement subband is wide is indicated to this UE by the measurement target base station.

Preferably, this UE judges that can or cannot receive lower powered accidental access response message method can comprise:

When UE is greater than or equal to the thresholding of system configuration for current persistent district measurement result, then UE judges that it can receive lower powered accidental access response message and/or when UE was less than or equal to the thresholding of system configuration for current persistent district measurement result, then UE judged that it cannot receive lower powered accidental access response message;

When UE is less than or equal to the thresholding of system configuration for current persistent district neighbor cell measurements, then UE judges that it can receive lower powered accidental access response message and/or when UE was greater than or equal to the thresholding of system configuration for current persistent district neighbor cell measurements, then UE judged that it cannot receive lower powered accidental access response message;

When the system configuration of thresholding UE is greater than or equal to to(for) ratio or the difference of current persistent district and neighbor cell measurements, then UE judges that it can receive lower powered accidental access response message and/or when the system configuration of thresholding UE is less than or equal to to(for) ratio or the difference of current persistent district and neighbor cell measurements, then UE judges that it cannot receive lower powered accidental access response message.

Step S1606 based on the result of the decision among the S1604, can receive lower powered accidental access response message and maybe cannot receive lower powered accidental access response message UE in the random access operation of specific random access channel resource execution.

Can receive lower powered accidental access response message maybe cannot receive lower powered accidental access response message UE and know one or more its own available Physical Random Access Channel by this random access channel resource that receives the base station and send, when a plurality of available Physical Random Access Channel is arranged, can receive lower powered accidental access response message and maybe cannot receive lower powered accidental access response message UE and select one of them Physical Random Access Channel to send random access code.If the base station has been indicated and can have been received lower powered accidental access response message and maybe cannot receive the random access sequence collection that lower powered accidental access response message UE can use, need send the random access sequence that belongs to this set at UE.

Step S1608, the base station judges whether that need to be almost the gap frame in low-power carries out the accidental access response operation.

The base station is based on receiving the specific random access lead code that sends on specific time domain in the set of the specific time domain of being somebody's turn to do among the S1606 and/or frequency domain position and/or the frequency domain position in random access lead code and/or the specific random access lead code arrangement set, judge this UE and can receive lower powered accidental access response message, then further, this base station can be chosen in low-power and is almost on the gap frame and sends accidental access response to this UE; Preferably, this base station is based on receiving the specific random access lead code that sends on specific time domain in the set of the specific time domain of being somebody's turn to do among the S1606 and/or frequency domain position and/or the frequency domain position in random access lead code and/or the specific random access lead code arrangement set, judge this UE and cannot receive lower powered accidental access response message, then further, this base station can be selected not to be almost the gap frame in low-power and send accidental access response to this UE.

Preferably, this base station has two kinds to select operation mechanism, the base station can be limited for the UE that can receive lower powered accidental access response message and be transmitted accidental access response to be almost the gap frame in low-power only, also can operate as follows for the priority that the UE that can receive lower powered accidental access response message selects to carry out random access operation response subframe: the base station preferentially uses the normal power subframe that UE is sent accidental access response message, UE is sent accidental access response message can't using the normal power subframe that UE is sent to use low-power to be almost the gap frame under the accidental access response message scene, this can't use normal power that UE is sent the accidental access response message scene to comprise that the channel that uses the normal power subframe to send accidental access response message has taken and/or used the normal power subframe to send that sequential that accidental access response message can't satisfy system requires and/or the delay requirement of the UE receiving random access response of system requirements.

Step S1610, the base station selects suitable subframe to send accidental access response message according to the operating result among the S1608.This accidental access response comprises corresponding physical down control (Downlink Control Indication is called for short DCI) indication information and corresponding MAC PDU information.

Step S1612, remaining network insertion operation is finished in UE and base station.

Preferably, this UE judges that it can receive lower powered accidental access response message, then correspondingly can be almost monitoring reception accidental access response on the gap frame in low-power, when this UE judges that it cannot receive lower powered accidental access response message, then correspondingly can not be almost monitoring reception accidental access response on the gap frame in low-power.

Preferably, this UE can it be almost the UE that the gap frame can be served for low-power at the up signaling message indicating of follow-up random access operation, for example add in the uplink signaling after receiving accidental access response message directly or indication information indirectly, the base station judges whether to be almost on the PDSCH channel of gap frame in low-power based on the Indication message of UE provides the downstream data traffic transmission for UE.

Embodiment three

Figure 17 is the basic flow sheet according to the connected state UE handover operation of the embodiment of the invention three, as shown in figure 17, in this preferred embodiment, switch to be linked into based on X2 handover operation flow process take connected state UE and introduce low-power and be almost gap frame base station and describe as example.Among the figure target BS be under the Macro+Pico coexistence scene introducing the Macro base station of low-power ABS subframe, source base station is the Pico base station under the Macro+Pico coexistence scene, the method step is as follows:

Step S1702, the measurement constraint information of source base station configuration UE measurement target Macro base station cell, measurement constraint information herein can correspond to the bitmap indication information that target Macro base station cell normal sub-frames and/or low-power are almost the measurement subframe subset of gap frame for a kind of.

Step S1704, the measurement that UE finishes for target Macro base station cell based on the measurement constraint information operates.

Method for the measurement of target Macro base station cell operation can comprise:

UE measurement target Macro base station cell is measured the wireless signal strength (RSRP) on the constrained, and and then can comprise and measure the wireless signal strength that target Macro base station cell is measured the cell common pilots position on the constrained;

UE measurement target Macro base station cell is measured wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (SNR) and/or the wireless signal signal interference ratio intensity (SIR) on the constrained, and further comprises wireless signal Signal to Interference plus Noise Ratio intensity and/or wireless signal signal to noise ratio intensity and/or the wireless signal signal interference ratio intensity of the cell common pilots position on the measurement target Macro base station cell measurement constrained;

UE measurement target Macro base station cell is measured the wireless signal channel quality states (RSRQ) on the constrained, and and then can comprise that measuring target Macro base station cell measures on the cell downlink full bandwidth on the constrained or specify the wireless signal channel quality states of subband on wide, this measurement subband is wide is indicated to this UE by source base station.

Step S1706, UE is reported to source base station with measurement result, this measurement report method comprises periodically and/or the measurement of Event triggered reports, and can comprise that in measurement report target Macro base station cell normal sub-frames and/or low-power are almost the measurement result corresponding to measurement subframe subset of gap frame.

Step S1708, source base station can carry out and judge whether UE can receive in the target BS residential quarter decision operation of low-power accidental access response message.

This judgment mode can comprise: whether the wireless signal signal interference ratio intensity (SIR) of the wireless signal Signal to Interference plus Noise Ratio intensity (SINR) of the wireless signal strength (RSRP) of the Target cell that measures that this UE reports and/or the radio signal quality (RSRQ) of the Target cell that measures that UE reports and/or the Target cell that measures that UE reports and/or the wireless signal signal to noise ratio intensity (SNR) of the Target cell that measures that UE reports and/or the Target cell that measures that UE reports is not less than or higher than the threshold value of system configuration and/or UE, whether has not been configured measurement constraint subset for Target cell.

If the source base station in step S1708 is not carried out decision operation, then the target BS among the follow-up S1712 need to be carried out decision operation.The below does not carry out decision operation take the source base station among the step S1708 and describes as example.

Step S1710, source base station send handover request message to target BS.

The source base station of this handover operation judges that UE can or cannot after Target cell receives the low-power accidental access response message, then comprise indication information in sending to the handover request signaling message of target BS; This indication information comprises: whether comprise wireless signal strength (RSRP) and/or radio signal quality (RSRQ) and/or wireless signal Signal to Interference plus Noise Ratio intensity (SINR) and/or wireless signal signal to noise ratio intensity (SNR) and/or the wireless signal signal interference ratio intensity (SIR) of the measurement constraint subset information of UE and/or the Target cell that UE measures in this signaling message and/or directly indicate UE could receive the indication information of low-power accidental access response.

Step S1712, target BS judge whether UE can receive in the target BS residential quarter operation of low-power accidental access response message.

The target base station receives the source base station transmits a signaling message carrying the indication message, the switching operation can be judged UE, the target base station may or may not be in a low power cell receives the random access response message operations, the determination method comprising: the target base station receives the measurement reported by the UE to the target cell to which the radio signal strength (RSRP), and / or measurements reported by the UE to the target cell radio signal quality (RSRQ), and / or reported by the UE to measure target cell radio signal strength signal to interference noise ratio (SINR), and / or measurements reported by the UE to the target cell radio signal to noise ratio strength (SNR), and / or measurements reported by the UE to the target cell radio signal signal to interference ratio strength (SIR) is not less than the threshold threshold or not higher than the system configuration the threshold and / or contains a UE measurement constrained subset of the information and / or to determine whether the received direct instructions; and further assign a specific random access channel (PRACH) on a particular time domain, and / or frequency domain location of the collection, and / or a specific set of random access preamble sequence indication to perform the switching operation of the UE.

Step S1714, target BS send handover request ack message to source base station.

Target BS sends handover request ack message to source base station based on the operating result among the S1712, can comprise on the specific Random Access Channel of distributing among the S1712 (PRACH) upper specific time domain and/or frequency domain position set and/or specific random access lead code arrangement set in this handover request ack message, can comprise that also the power ratio parameter and/or the low-power that are almost the gap frame for low-power are almost gap frame distribution message bit pattern and/or measure the constraint subset information.

Step S1716, source base station send switching command message to UE.

Source base station is with (PRACH) on the specific Random Access Channel that receives in the S1714 step upper specific time domain and/or frequency domain position set and/or specific random access lead code arrangement set and be almost the power ratio parameter of gap frame and/or low-power for low-power and be almost gap frame distribution message bit pattern and/or measure the constraint subset information and be included in and send to UE in the switching command message.

Step S1718, UE, source base station, target BS finish remaining network and switch access operation.

Target BS can judge then that receiving specific time domain and/or the frequency domain position when sending random access lead code and/or using specific random access lead code in the specific random access lead code arrangement set of this UE in the set of specific time domain and/or frequency domain position UE could receive lower powered accidental access response message.

This target BS is based on receiving the specific random access lead code that sends on specific time domain in the set of the specific time domain of being somebody's turn to do among the S1706 and/or frequency domain position and/or the frequency domain position in random access lead code and/or the specific random access lead code arrangement set, judge this UE and can receive lower powered accidental access response message, then further, this target BS can be chosen in low-power and is almost on the gap frame and sends accidental access response to this UE; Further, this target BS is based on receiving the specific random access lead code that sends on specific time domain in the set of the specific time domain of being somebody's turn to do among the S1206 and/or frequency domain position and/or the frequency domain position in random access lead code and/or the specific random access lead code arrangement set, judge this UE and cannot receive lower powered accidental access response message, then further, this target BS can be selected not to be almost the gap frame in low-power and send accidental access response to this UE.

Preferably, this target BS has two kinds to select operation mechanism, this target BS can limit for the UE that can receive lower powered accidental access response message and transmit accidental access response to be almost the gap frame in low-power only, also can operate as follows for the priority that the UE that can receive lower powered accidental access response message selects to carry out random access operation response subframe: this target BS preferentially uses the normal power subframe that UE is sent accidental access response message, UE is sent accidental access response message can't using the normal power subframe that UE is sent to use low-power to be almost the gap frame under the accidental access response message scene, this can't use normal power that UE is sent the accidental access response message scene to comprise that the channel that uses the normal power subframe to send accidental access response message has taken and/or used the normal power subframe to send that sequential that accidental access response message can't satisfy system requires and/or the delay requirement of the UE receiving random access response of system requirements.

This UE is almost the data that gap framing bit figure information receives target BS transmission in the handover operation process based on the power ratio parameter and/or the low-power that are almost on the gap frame for low-power that get access to from the switching command parameter of source base station.

Target BS is when sending downlink data, can also be by the low-power sub-frame property of indication subframe on the down control channel, be included in low-power be almost in the descending control format indicating channel (PCFICH) of gap frame by new coding method and/or add direct indication information and/or the indication information that in low-power is almost public search space in the down control channel of gap frame, adds and/or the indication information that in low-power is almost privately owned search volume in the down control channel of gap frame, adds and or be almost the indication information that adds in the zone that newly increases in the down control channel of gap frame in low-power, be that low-power is almost the gap frame by subframe corresponding to this indication information indication UE; Note, low-power is almost the low-power that gap frame indication information can also be applied to when data send in the non-handover operation process and is almost gap frame indication scene on the down control channel herein.

Embodiment four

Figure 18 is the basic flow sheet according to the UE reconstruction operation of the embodiment of the invention four, and as shown in figure 13, the service UE reconstruction operation flow process that is almost the base station cell of gap frame in this preferred embodiment to introduce low-power describes as example.Among the figure base station be under the Macro+Pico coexistence scene introducing the Macro base station of low-power ABS subframe, the method flow process is as follows:

S1802, the low-power that the UE that is connected to the Macro base station receives the base station configuration is almost the relevant parameter of gap frame scheduling transmission, this parameter comprises: the base station configures corresponding specific time domain and/or frequency domain position set and/or specific random access lead code arrangement set simultaneously when being almost the measurement constraint subset that power ratio parameter corresponding to gap frame and/or base station send for the UE configures low power when judging that UE can be almost the service of gap frame scheduling by low-power.

S1804, UE detects link failure, and the residential quarter that UE attempts connecting before link failure carries out reconstruction operation, and then UE judges whether to receive the low-power accidental access response message.

Link failure when occuring in UE, based on whether judging whether it can receive low-power accidental access response message method and comprise in the corresponding link-recovery operating process of this link failure by the state that low-power is almost the service of gap frame before its link failure: UE receives the base station sends be almost the power ratio parameter of gap frame and/or receive the measurement constraint subset that the base station sends for low-power before link failure, and then UE judges in the corresponding link-recovery operating process of this its link failure and can receive the low-power accidental access response message; UE does not receive the base station sends be almost the power ratio parameter of gap frame and/or receive the measurement constraint subset that the base station sends for low-power before link failure, then UE judges in the corresponding link-recovery operating process of this its link failure and cannot receive the low-power accidental access response message.

S1806, UE carries out random access operation at specific random access channel resource.

Whether it can receive the low-power accidental access response message to UE by coming informing base station with the specific random access lead code in transmission random access lead code and/or the specific random access lead code arrangement set on the specific time domain in specific time domain and/or the frequency domain position set and/or the frequency domain position.

S1808 finishes remaining network and rebuilds access operation between UE and the base station.

The base station receives UE by sending the specific random access lead code in random access lead code and/or the specific random access lead code arrangement set on the specific time domain in the specific time domain of use and/or the frequency domain position set and/or the frequency domain position, judge then whether UE is passable. receive the low-power accidental access response message, and and then correspondingly on suitable subframe, UE is sent accidental access response message, this selects the mode of suitable subframe can be identical with embodiment two.The operation of UE receiving random access response message also can be identical with embodiment two.

Embodiment five

The present embodiment is described UE and is switched the basic procedure that is linked into introducing low-power ABS subframe base station based on the S1 handover operation; Handover-target base station be under the Macro+Pico coexistence scene introducing the Macro base station of low-power ABS subframe, source base station is the Pico base station under the Macro+Pico coexistence scene, is with respect to the difference among the embodiment three:

The signaling information that source base station sends to target BS becomes the signaling message in the S1 handover operation flow process, and namely source base station sends to comprise between the base station of being somebody's turn to do among the embodiment three in the handoff requirement message of mobile management entity and the handover request message that mobile management entity sends to target BS and carrying out required signaling in the handover operation process at UE mutual on the X2 interface to target BS.

The signaling information of target BS transmission source base station becomes the signaling message in the S1 handover operation flow process, and target BS sends to comprise between the base station of being somebody's turn to do among the embodiment three in the handover request ack message of mobile management entity and the switching command message that corresponding mobile management entity sends to source base station carries out required signaling in the handover operation process at UE mutual on the X2 interface at target BS.

All the other operating processes are with describing among the embodiment three.

Embodiment six

The present embodiment specifically describes a kind of single antenna configuration on the basis of previous embodiment, and under the scene of two kinds of downlink transmission power subframes of system's support, how UE calculates by the direct measurement threshold value that obtains how the mode of the power ratio parameter that this residential quarter is relevant and UE obtain the measurement threshold value indirectly from the relevant power ratio parameter in the residential quarter of base station transmission.

The power ratio coaptation that the residential quarter that UE sends from the base station is relevant goes out following being somebody's turn to do of method of this measurement threshold value:

In the existing LTE system, base station configurating downlink subframe power division relevant parameter has following relation:

E _RS=η ((6*E _{TOT, A})/N _A)=6 η E _A(formula one)

In the following formula, E _{TOT, A}Be the gross power of transmitting on symbol on the subframe of residential quarter, N _ABe the data resource unit on symbol on the subframe of residential quarter (Resource Element is called for short RE) number, E _RSBe the relevant locational through-put power of cell reference signals (Cell Specific Reference Signal is referred to as CRS) in residential quarter, E _AFor not carrying data resource unit (Resource Element the is called for short RE) average power on the CRS symbol on the subframe of residential quarter, η is the parameter of a system configuration.And following relational expression arranged further:

E _B=((6* (1-η))/5) * E _A(formula two)

In the following formula two, E _BFor carrying the data resource cell-average power on the CRS symbol on the subframe of residential quarter.

The CRS location transmission power that UE can get access to from cell broadcast messages on the subframe (is the E in the formula one _RS), the cell downlink bandwidth (and then can obtain N in the formula one _A), the power ratio parameter E on the subframe of residential quarter _B/ E _A, namely carry the ratio of data resource unit (Resource Element the is called for short RE) average power of not carrying on data resource cell-average power on the CRS symbol and the residential quarter subframe on the CRS symbol on the subframe of residential quarter, and and then UE can get access to η and E _{TOT, A}Parameter.Therefore UE is by getting access to all parameters in following formula one and the formula two in the existing information that receives.

When a kind of normal power subframe and a kind of when reducing power subframe and described UE and directly measuring ratio between the gross power that threshold value can embody two kinds of subframes or difference and concern is introduced in same residential quarter, system can allow UE know power ratio parameter on the low-power subframe based on following mode.

After the relevant parameter of the normal power subframe that UE receives, again based on the gross power of the Relation acquisition in the above-mentioned formula one, two to each symbol of normal power subframe, extrapolate again the gross power of low-power subframe based on the direct measurement threshold value that obtains.And and then the CRS location transmission power by each subframe on the same residential quarter is identical again, the principle convolution one that the RE number is identical, the two anti-relevant parameters of each power division that push away on the low-power subframe, comprising the power ratio parameter on the low-power subframe, also is to carry the ratio that does not carry the data resource cell-average power on the CRS symbol on data resource cell-average power on the CRS symbol and the residential quarter subframe on the subframe of residential quarter.

Based on aforesaid way, namely can allow UE receive only the relevant power ratio parameter of normal power subframe and be somebody's turn to do and obtain the relevant power ratio parameter of another reduction power subframe under the condition of directly measuring threshold value.

The reckoning mode of obtaining this measurement threshold value the power ratio parameter of being correlated with in the residential quarter that UE sends from the base station indirectly is as follows:

When a kind of normal power subframe and a kind of reduction power subframe are introduced in same residential quarter, and two kinds of subframes of system broadcasts are separately during corresponding power ratio parameter, UE can calculate the transmission gross power that gets access to two types of subframes based on the signaling message that receives and above-mentioned formula one, two, and and then can get access to two types of power differences on the subframe, when system will measure power difference on threshold value and the two types of subframes and shine upon, then UE can calculate required measurement threshold value based on mapping ruler.

Embodiment seven

The present embodiment is described the method for network access when introducing multiple power type descending sub frame.

When introducing multiple power type descending sub frame, in order to finish initial access, switching access, the reconstruction access of being somebody's turn to do in above-described embodiment.System need to introduce corresponding polytype measurement threshold value allows UE judge the accidental access response whether it send to receive all kinds power only, and introduces accordingly polytype specific random access channel resource and allow UE use with and then allow the ability of its receiving random access response message of UE informing base station.

The base station is based on the ability of UE receiving random access response message, for UE selects suitable subframe and uses suitable power to send accidental access response message.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a random access processing method is characterized in that, comprising:

Judge whether user terminal UE can receive the lower powered accidental access response message from the base station;

Notify described base station with the result who judges.

2. method according to claim 1 is characterized in that, judges that the lower powered accidental access response message whether described UE can receive from the base station comprises:

Obtain the parameter of described UE persistent district and/or described UE persistent district neighbor cell;

The described UE persistent district that obtains and/or parameter and the threshold value of described UE persistent district neighbor cell are compared,

Judge according to result relatively whether described UE can receive the lower powered accidental access response message from described base station.

3. method according to claim 2 is characterized in that, the parameter of described UE persistent district and/or described UE persistent district neighbor cell comprise following one of at least:

The wireless signal strength RSRP of described UE persistent district and/or persistent district neighbor cell, the wireless signal strength RSRP of the public guide frequency position of described UE persistent district and/or persistent district neighbor cell,

Described UE persistent district and/or persistent district neighbor cell wireless signal Signal to Interference plus Noise Ratio strength S INR, described UE persistent district and/or persistent district neighbor cell wireless signal signal to noise ratio strength S NR, described UE persistent district and/or persistent district neighbor cell wireless signal signal interference ratio strength S IR, the wireless signal Signal to Interference plus Noise Ratio strength S INR of described UE persistent district and/or persistent district neighbor cell public guide frequency position, described UE persistent district and/or persistent district neighbor cell wireless signal signal to noise ratio strength S NR, described UE persistent district and/or persistent district neighbor cell wireless signal signal interference ratio strength S IR

The wireless signal channel quality states RSRQ of described UE persistent district and/or persistent district neighbor cell is on the descending full bandwidth of described UE persistent district and/or persistent district neighbor cell or specify the wireless signal channel quality states RSRQ of subband on wide.

4. method according to claim 2 is characterized in that, described threshold value is obtained one of in the following manner:

Receive the described threshold value that described base station sends, and/or draw described threshold value according to the threshold parameter from described base station,

Wherein, described threshold parameter comprises the different capacity proportioning parameter of the dissimilar subframe of base station configuration.

5. method according to claim 1 is characterized in that, when the link failure between described UE and described base station is rebuild described link, judges that the lower powered accidental access response message whether described UE can receive from described base station comprises,

Judge whether described UE received the configuration information from described base station before link failure, wherein, described configuration information is used for dispatching described UE transceiving data on the low-power subframe;

Judge according to the judged result that whether receives from the described configuration information of base station whether described UE can receive the lower powered accidental access response message from described base station.

6. method according to claim 1 is characterized in that, notifies described base station to comprise the result who judges,

Obtain the random access channel resource information from the configuration of described base station, wherein, described random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set;

Notify described base station with the result of described judgement by the channel resource of the described random access channel resource information appointment of obtaining.

7. each described method in 6 according to claim 1 is characterized in that, described UE judges whether described UE can receive the lower powered accidental access response message from described base station.

8. each described method in 6 according to claim 1, it is characterized in that, also comprise, after the low-power accidental access response message that receives from described base station, send the first indication information to described base station, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

9. switching handling method, it is characterized in that, comprise, be applied to user terminal UE and switched to target BS by source base station, described source base station and/or described target BS judge according to the parameter of described target BS whether described UE can receive lower powered accidental access response message.

10. method according to claim 9 is characterized in that, described source base station judges according to the parameter of described target BS whether described UE can receive lower powered accidental access response message and comprise,

Described source base station receives the parameter of the target BS that described UE obtains;

Described source base station judges according to the parameter of described target BS whether described UE can receive lower powered accidental access response message;

Described source base station is notified described target BS with described judged result.

11. method according to claim 10, it is characterized in that, also comprise, the needed measurement constraint information of the parameter that described source base station configuration UE is obtained described target BS, wherein, described measurement constraint information comprises for the time domain and/or the frequency domain position information that limit UE measurement target base station.

12. method according to claim 9 is characterized in that, described target BS judges according to the parameter of described target BS whether described UE can receive lower powered accidental access response message and comprise,

Described source base station will send to described target BS from the parameter of the target BS of described UE;

Described target BS foundation judges from the parameter of the described target BS of described source base station whether described UE can receive lower powered accidental access response message.

13. according to claim 9 or 10 described methods, it is characterized in that, after described source base station judges whether described UE can receive lower powered accidental access response message from the base station, send the first indication information to described target BS, wherein, described the first indication information is used to indicate described target BS and whether can transmits lower powered accidental access response message to described UE.

14. a random access processing method is characterized in that, comprising:

Send the information of random access channel resource to terminal use UE, wherein, the channel resource of the information appointment of described random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel, the frequency domain position set on the Random Access Channel, the channel resource of random access lead code arrangement set;

Receive indication information by described random access channel resource, wherein, whether described indication information is used to indicate described UE can receive lower powered accidental access response message from the base station.

15. method according to claim 14, it is characterized in that, also comprise: be that described UE can receive in the situation from the lower powered accidental access response message of base station in described judged result, send described lower powered accidental access response message to described UE.

16. method according to claim 15, it is characterized in that, sending described lower powered accidental access response message to described UE comprises: described base station judges whether to send described accidental access response message under normal power, in the situation that described base station can't send described accidental access response message at normal power, send described lower powered accidental access response message to described UE.

17. each described method in 16 according to claim 14, it is characterized in that, also comprise, after sending described lower powered accidental access response message to described UE, receive the first indication information from described UE, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

18. each described method in 16 is characterized in that according to claim 14, also comprises, sends the second indication information to described UE, wherein, described the second indication information is used to indicate and sends the corresponding subframe of data service to described UE is the low-power subframe.

19. method according to claim 18 is characterized in that, in the following manner described the second indication information of carrying one of at least:

The mode of indicating by newly-increased coding method in descending control format indicating channel is carried described the second indication information; In described descending control format indicating channel, add described the second indication information; Add described the second indication information in the public search space in the down control channel of low-power subframe; Add described the second indication information in the privately owned search volume in the down control channel of low-power subframe; Add described the second indication information in the zone of the increase in the down control channel of low-power subframe.

20. a random access processing unit is characterized in that, comprising:

The first judge module is used for judging whether user terminal UE can receive the lower powered accidental access response message from the base station;

Notification module, the result who is used for judging notifies described base station.

21. device according to claim 20 is characterized in that, described the first judge module comprises:

The first acquisition module is for the signal parameter value of obtaining described UE persistent district and/or described UE persistent district neighbor cell;

Comparison module, signal parameter value for the described UE persistent district that will obtain and/or described UE persistent district neighbor cell compares with the threshold value that sets in advance, and judges according to result relatively whether described UE can receive the lower powered accidental access response message from described base station.

22. device according to claim 20 is characterized in that, described the first judge module comprises:

The second judge module, when rebuilding described link for the link failure between described UE and described base station, judge whether described UE received the configuration information from described base station before link failure, wherein, described configuration information is used for dispatching described UE transceiving data on the low-power subframe;

The 3rd judge module is used for judging according to the judged result that whether receives from the described configuration information of base station whether described UE can receive the lower powered accidental access response message from described base station.

23. device according to claim 20 is characterized in that, described notification module comprises,

The second acquisition module, be used for obtaining the random access channel resource information from the configuration of described base station, wherein, described random access channel resource information is used to specify following channel resource one of at least: the channel resource of the time domain on the Random Access Channel, frequency domain position set, random access lead code arrangement set;

The second notification module is used for notifying described base station with the result of described judgement by the channel resource of the described random access channel resource information appointment of obtaining.

24. each described device in 23 according to claim 20, it is characterized in that, also comprise, the first sending module, be used for after the low-power accidental access response message that receives from described base station, send the first indication information to described base station, wherein, whether described the first indication information is used to indicate described UE can receive the data of dispatching on the low-power subframe.

25. switch processing device, it is characterized in that, being applied to user terminal UE is switched to target BS by source base station, comprise, the 4th judge module is used for described source base station and/or described target BS and judges according to the parameter of described target BS whether described UE can receive the lower powered accidental access response message from the base station.

26. device according to claim 25, it is characterized in that, also comprise, the second sending module, be used for after described source base station judges whether described UE can receive lower powered accidental access response message from the base station, send the first indication information to described target BS, wherein, whether described the first indication information is used to indicate described target BS can transmit lower powered accidental access response message to described UE.

27. a random access processing unit is characterized in that, comprising:

The 3rd sending module is used for to the information of terminal use UE transmission random access channel resource; Wherein, the channel resource of the information appointment of described random access channel resource comprise following one of at least: the time-domain position set on the Random Access Channel and/or, the frequency domain position set on the Random Access Channel and/or, the channel resource of random access lead code arrangement set;

The first receiver module, be used for receiving indication information by the described channel resource of described random access channel resource information appointment, wherein, described indication information is used to indicate and judges whether described UE can receive the judged result from the lower powered accidental access response message of base station.

28. device according to claim 27, it is characterized in that, also comprise: the 4th sending module, being used in described judged result is that described UE can receive in the situation from the lower powered accidental access response message of base station, sends described lower powered accidental access response message to described UE.

29. according to claim 27 or 28 described devices, it is characterized in that, also comprise: the second receiver module, be used for after sending described lower powered accidental access response message to described UE, receive the first indication information from described UE, wherein, described the first indication information is used to indicate described UE and whether can receives the data of dispatching on the low-power subframe.

30. according to claim 27 or 28 described devices, it is characterized in that, also comprise: the 5th sending module is used for sending the second indication information to described UE, wherein, to be used to indicate and to send the corresponding subframe of data service to described UE be the low-power subframe to described the second indication information.