CN104813731A

CN104813731A - Method and equipment for transmitting random access message

Info

Publication number: CN104813731A
Application number: CN201380002946.5A
Authority: CN
Inventors: 张向东; 余政
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-11-01
Filing date: 2013-11-01
Publication date: 2015-07-29
Also published as: WO2015062100A1

Abstract

Disclosed in the present invention are a method and equipment for transmitting a random access message, through which coverage enhancement based on the use of signal repetition is realized. The method disclosed in the embodiment of the present invention comprises: receiving random access preamble sequences transmitted by user equipment, and determining a random access response corresponding to the random access preamble sequence transmitted by each user equipment; according to the received random access preamble sequence transmitted by the user equipment as well as a transmission mode for the random access response, determining parameter information required for transmitting the random access response corresponding to the random access preamble sequence; and on the basis of the parameter information determined, transmitting the random access response to the user equipment according to the transmission mode.

Description

METHOD AND EQUIPMENT FOR TRANSMITTING RANDOM ACCESS MESSAGE

The transmission method and equipment of a kind of random accessing message

Technical field

The present invention relates to the communications field, the transmission method and equipment of more particularly to a kind of random accessing message.Background technology

Internet of Things refers to, by various equipment of the deployment with certain perception, calculating, execution and communication capacity, obtain the information of physical world, by real-time performance information transfer, collaboration and processing, so as to realize the network of the interconnection of people and thing, thing and thing.Cylinder speech, Internet of Things seeks to realize interconnecting for people and thing, thing and thing.The possible application of Internet of Things includes the various aspects such as intelligent grid, reading intelligent agriculture, intelligent transportation and environment measuring.

Machine To Machine（Machine to Machine, M2M) communication be third generation partner program（ The 3^rdGeneration Partnership, 3GPP) for research how the technology and standardized concepts that carrier working application is proposed on mobile communications network, and project team is specially set up, research needs the enhancing or optimization carried out to mobile communications network for the introducing of MTC device.Current 3GPP Long Term Evolutions（Long Term Evolution, LTE) project proposes the specific aim research topic of coverage enhancement for the special applications scene of MTC device：For under the larger environment of path loss（Such as basement）MTC device there is provided coverage enhancement support so that the MTC device have access to network with obtain network offer service.

In existing wireless network, in the free time（Idle) terminal of pattern is firstly the need of Stochastic accessing (Random Access, the RA) process of initiation, to obtain uplink synchronous and/or suitable transmission power level, could set up and be connected with network, and then transmit user data.Wherein, the transmitting procedure of random accessing message is specially：Terminal sends random access guiding to base station（Preamble) sequence, base station is bad in the Preamble sequences for receiving terminal transmission¹After J, accidental access response (Random Access Response are returned to terminal, RAR) message, uplink synchronous time advance (Timing Advance, the TA) value and/or suitable transmission power synchronous comprising terminal uplink is realized in the RAR message.

MTC device under the larger environment of path loss is sent after Preamble sequences to base station, and base station possibly can not receive the Preamble sequences of MTC device transmission, or, base station have received this Backward MTC device of Preamble sequences that MTC device is sent returns to RAR message, the MTC device possibly can not receive the RAR message of base station transmission, so that the MTC device can not be linked into network, therefore, need under the larger environment of path loss MTC device carry out coverage enhancement, with ensure base station can effectively receive the MTC device Preamble sequences and MTC device can effectively receive base station return RAR message.

Signal repeats to be one of the method for coverage enhancement of MTC device of realization under the larger environment of path loss.As shown in figure 1, such as, terminal repeats to send m Preamble sequence to base station, to ensure that base station can effectively be received；Further, base station repeats to send R RAR message, to ensure that terminal can be received effectively after the Preamble sequences of terminal transmission are received to terminal.Under above-mentioned coverage enhancement scene, the environment residing for MTC device is different, and the path loss of signal experience is differed, and the demand of corresponding signal coverage enhancement is also differed, then the number of times required for signal is repeated also is differed.During prior art is realized, the coverage enhancement demand of equipment can be divided into different coverage enhancement grades, then, different coverage enhancement grades, the different coverage enhancement demand of correspondence also corresponds to different signal numbers of repetition.

However, there is presently no the specific implementation for the coverage enhancement that multiple user equipmenies are realized by the way of being repeated using signal.The content of the invention

The embodiments of the invention provide a kind of transmission method of random accessing message, the coverage enhancement repeated using signal is realized.

In a first aspect, a kind of transmission method of random accessing message, including：The random access leader sequence that user equipment is sent is received, and determines the corresponding accidental access response of random access leader sequence that each user equipment is sent；

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And,

According to the parameter information of determination, according to described sender formula, accidental access response is sent to the user equipment； Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

With reference to first aspect, under the first possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that sending the number of repetition of one accidental access response message, specifically include：

The random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment；And,

According to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the corresponding number of repetition of coverage enhancement grade maximum in identified coverage enhancement grade is obtained, and be used as the number of repetition for sending one accidental access response message.

With reference to the first possible implementation of first aspect, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that sending the delivery time of one accidental access response message, specifically include：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with. With reference to the first possible implementation of first aspect, or combine second of possible implementation of first aspect, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the scrambler sequence of one accidental access response, specifically include：

It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

With reference to the third possible implementation of first aspect, under the 4th kind of possible implementation, it is determined that being specially for scrambling t-id used in the scrambler sequence calculating of an accidental access response message：User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

With reference to the first possible implementation of first aspect or the 4th kind of possible implementation of the third possible implementation or combination first aspect of second of possible implementation of combination first aspect or combination first aspect, under the 5th kind of possible implementation, if with different coverage enhancement grades at least two described in user equipment have sent identical random access leader sequence using different random access resources, methods described also includes：

The first configured information, first configured information are carried in one accidental access response message For the corresponding accidental access response of random access leader sequence for indicating to send using the user equipment of different random access-in resource in a transmitted accidental access response message, or,

The second configured information is carried in one accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message.

With reference to first aspect, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence sent with different coverage enhancement class user equipment respectively using different accidental access response messages, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that the number of repetition needed for sending the corresponding accidental access response of random access leader sequence that each user equipment is sent, is specifically included：

The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And,

According to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

With reference to the 6th kind of possible implementation of first aspect, under the 7th kind of possible implementation, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that the parameter information needed for sending the corresponding accidental access response of random access leader sequence that each user equipment is sent, is specifically included：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

With reference to the 7th kind of possible implementation of first aspect, under the 8th kind of possible implementation, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, is the corresponding accidental access response message of random access leader sequence that each user equipment is sent A different delivery time is determined, is specifically included：

It is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is wherein, different starting subframes used in random access leader sequence or different end subframes are sent for each user equipment, k is the sub-frame offset being pre-configured with.

With reference to the 7th kind of possible implementation of first aspect, under the 9th kind of possible implementation, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, is specifically included：

It is determined that calculating the numbering of used different subframes when t _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent；And/or,

It is determined that calculating used different frequency domain information when f _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

With reference to the first possible implementation or the 6th kind of possible implementation of combination first aspect of first aspect, under the tenth kind of possible implementation, the random access leader sequence sent according to the user equipment, the coverage enhancement grade of the user equipment is determined, is specifically included：

The random access leader sequence group belonging to random access leader sequence sent according to the user equipment, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, The time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

Second aspect, a kind of transmission method of random accessing message, including：

Random access leader sequence is sent to base station, and the coverage enhancement grade of itself is indicated by the random access leader sequence；

According to the sending method of accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of the random access leader sequence；And,

According to the parameter information of determination, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, the accidental access response message that the base station is sent is received；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying at least one of the running time-frequency resource information of accidental access response, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

With reference to second aspect, under the first possible implementation, random access leader sequence is sent to the base station, is specifically included：

It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or, it is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, It is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

With reference to second aspect or the first possible implementation of combination second aspect, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent, shellfish ^ using an accidental access response message

According to the sending method of accidental access response, it is n+k to determine the time of reception for receiving one accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

With reference to second of possible implementation of the first possible implementation or combination second aspect of second aspect or combination second aspect, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then according to the sending method of accidental access response, it is determined that the scrambler sequence for receiving one accidental access response message, is specifically included：

It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

With reference to the third possible implementation of second aspect, under the 4th kind of possible implementation, it is determined that for descrambling used in the scrambler sequence calculating of the one accidental access response message received T _ id is specially：

User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

With reference to the first possible implementation of second aspect or the 4th kind of possible implementation of the third possible implementation or combination second aspect of second of possible implementation of combination second aspect or combination second aspect, under the 5th kind of possible implementation, this method also includes：

The first configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

The second configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, second configured information is used in the accidental access response message that instruction user equipment is received the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send.

With reference to second aspect or the first possible implementation of combination second aspect, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent, shellfish ^ respectively using different accidental access response messages

According to the sending method of accidental access response, the time of reception for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with.

, can at the 7th kind with reference to second aspect or the first possible implementation of combination second aspect Under the implementation of energy, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself is then determined, is specifically included：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself.

The third aspect, a kind of network equipment, including：

Receiving module, the random access leader sequence for receiving user equipment transmission, and determine the corresponding accidental access response of random access leader sequence that each user equipment is sent；

Processing module, for the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And,

Sending module, for the parameter information determined according to the processing module, according to described sender formula, accidental access response is sent to the user equipment；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

With reference to the third aspect, under the first possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processing module determines to send The delivery time of one accidental access response message, is specifically included：

The random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the maximum corresponding number of repetition of coverage enhancement grade in coverage enhancement grade determined by obtaining, and it is used as the number of repetition for sending one accidental access response message.

With reference to the first possible implementation of the third aspect, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processing module determines to send the delivery time of one accidental access response message, specifically includes：The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

With reference to the first possible implementation or second of possible implementation of the combination third aspect of the third aspect, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processing module determines to send the scrambler sequence of one accidental access response according in the following manner：

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent. With reference to the third possible implementation of the third aspect, under the 4th kind of possible implementation, the processing module determines that the scrambler sequence for scrambling one accidental access response message calculates t _ id used and is specially：

With reference to the first possible implementation of the third aspect or the 4th kind of possible implementation of the third possible implementation or the combination third aspect of second of possible implementation of the combination third aspect or the combination third aspect, under the 5th kind of possible implementation, if user equipment described at least two have sent identical random access leader sequence using different random access resources, the processing module is additionally operable to：

The first configured information is carried in one accidental access response message, first configured information is used to indicate the corresponding accidental access response of random access leader sequence sent in a transmitted accidental access response message using the user equipment of different random access-in resource, or

With reference to the third aspect, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response message of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module determines to send the number of repetition needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the corresponding Stochastic accessing of random access leader sequence that each user equipment is sent rings Answer the number of repetition of message.

With reference to the 6th kind of possible implementation of the third aspect, under the 7th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response message of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module determines to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

With reference to the 7th kind of possible implementation of the third aspect, under the 8th kind of possible implementation, the processing module determines a different delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

With reference to the 7th kind of possible implementation of the third aspect, under the 9th kind of possible implementation, the processing module determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

It is determined that calculating used different frequency domain information when f _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent. With reference to the first possible implementation or the 6th kind of possible implementation of the combination third aspect of the third aspect, under the tenth kind of possible implementation, the processing module determines the coverage enhancement grade of the user equipment, specifically includes：

The random access leader sequence group belonging to random access leader sequence sent according to the user equipment, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, the time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

Fourth aspect, a kind of user equipment, including：

Sending module, for sending random access leader sequence to base station, and indicates by the random access leader sequence coverage enhancement grade of itself；

Processing module, for the sending method according to accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of the random access leader sequence；And,

Receiving module, for the parameter information determined according to processing module, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, receives the accidental access response message that the base station is sent；Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message, Yi Jiyong In at least one of the scrambler sequence of descrambling accidental access response message information.

With reference to fourth aspect, under the first possible implementation, the sending module specifically for：It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or, it is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, it is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

With reference to fourth aspect or the first possible implementation of combination fourth aspect, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, the processing module specifically for：

With reference to second of possible implementation of the first possible implementation or combination fourth aspect of fourth aspect or combination fourth aspect, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processing module determines the scrambler sequence for descrambling the one accidental access response message received, specifically includes：It is determined that calculating used for descrambling the scrambler sequence of the one accidental access response message received T _ id for different coverage enhancement grades user equipment send random access leader sequence when used identical subframe numbering, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

With reference to the third possible implementation of fourth aspect, under the 4th kind of possible implementation, the processing module determines that the scrambler sequence for descrambling the one accidental access response message received calculates t _ id used and is specially：

With reference to the first possible implementation of fourth aspect or the 4th kind of possible implementation of the third possible implementation or combination fourth aspect of second of possible implementation of combination fourth aspect or combination fourth aspect, under the 5th kind of possible implementation

The processing module is additionally operable to：The first configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

The second configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, second configured information is used in the accidental access response message that instruction user equipment is received the random access leader sequence correspondence that there is the user equipment of different coverage enhancement grades to send Accidental access response.

With reference to fourth aspect or the first possible implementation of combination fourth aspect, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, the processing module specifically for：

With reference to fourth aspect or the first possible implementation of combination fourth aspect, under the 7th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself, specifically includes：

5th aspect, a kind of network equipment, including：

Transceiver, the random access leader sequence for receiving user equipment transmission；

Processor, for determining the corresponding accidental access response of random access leader sequence that each user equipment is sent, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And the triggering transceiver, according to described sender formula, accidental access response is sent to the user equipment according to the parameter information of determination；

With reference to the 5th aspect, under the first possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processor determines to send the delivery time of one accidental access response message, specifically includes：

With reference to the first possible implementation of the 5th aspect, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then processor determines to send the delivery time of one accidental access response message, specifically includes：The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

With reference to the first possible implementation or second of possible implementation of the aspect of combination the 5th of the 5th aspect, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processor determines to send the scrambler sequence of one accidental access response according in the following manner： It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

With reference to the third possible implementation of the 5th aspect, under the 4th kind of possible implementation, the processor determines that the scrambler sequence for scrambling one accidental access response message calculates t _ id used and is specially：

With reference to the first possible implementation or second of the possible implementation or the third possible implementation of the aspect of combination the 5th in terms of combination the 5th or the 4th kind of possible implementation in terms of combination the 5th in terms of the 5th, under the 5th kind of possible implementation, if user equipment described at least two have sent identical random access leader sequence using different random access resources, the processor is additionally operable to：

The second configured information is carried in one accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message. With reference to the 5th aspect, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processor determines to send the number of repetition needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

With reference to the 6th kind of possible implementation of the 5th aspect, under the 7th kind of possible implementation, the processor is determined to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, specifically included：

With reference to the 7th kind of possible implementation of the 5th aspect, under the 8th kind of possible implementation, the processor determines a different delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

With reference to the 7th kind of possible implementation of the 5th aspect, under the 9th kind of possible implementation, the processor determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes： It is determined that calculating the numbering of used different subframes when t _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent；And/or,

With reference to the first possible implementation or the 6th kind of possible implementation of the aspect of combination the 5th of the 5th aspect, under the tenth kind of possible implementation,

The processor determines the coverage enhancement grade of the user equipment, specifically includes：

The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

The time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

6th aspect, a kind of user equipment, including：

Transceiver, for sending random access leader sequence to base station, and indicates by the random access leader sequence coverage enhancement grade of itself；

Processor, for the sending method according to accidental access response, it is determined that receiving before the Stochastic accessing Lead the parameter information needed for the corresponding accidental access response message of sequence；And the parameter information that the triggering transceiver is determined according to processor, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, receive the accidental access response message that the base station is sent；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying at least one of the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

With reference to the 6th aspect, under the first possible implementation, the processor specifically for：It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or, it is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, it is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

With reference to the 6th aspect or the first possible implementation of the aspect of combination the 6th, under second of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, the processor specifically for：

According to the sending method of accidental access response, determine that received one accidental access response disappears The time of reception of breath is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

With reference to second of possible implementation of the first possible implementation or the aspect of combination the 6th of the 6th aspect or the aspect of combination the 6th, under the third possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processor determines the scrambler sequence for receiving one accidental access response message, specifically includes：

With reference to the third possible implementation of the 6th aspect, under the 4th kind of possible implementation, the processor determines that the scrambler sequence for descrambling the one accidental access response message received calculates used 1 _ 11 and is specially：

With reference to the first possible implementation or second of the possible implementation or the third possible implementation of the aspect of combination the 6th in terms of combination the 6th or the 4th kind of possible implementation in terms of combination the 6th in terms of the 6th, under the 5th kind of possible implementation, the processor is additionally operable to：The first configured information is carried according in the one accidental access response message received, institute is determined State the corresponding accidental access response of random access leader sequence for belonging to itself transmission in an accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

With reference to the 6th aspect or the first possible implementation of the aspect of combination the 6th, under the 6th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, the processor specifically for：

With reference to the 6th aspect or the first possible implementation of the aspect of combination the 6th, under the 7th kind of possible implementation, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processor determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself, specifically includes：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself. Brief description of the drawings

Fig. 1 be background technology in realize MTC device coverage enhancement method schematic diagram；

Fig. 2 is a kind of transmission method schematic diagram of random accessing message provided in an embodiment of the present invention；Fig. 3 for it is provided in an embodiment of the present invention the first preamble and the schematic diagram of RAR message are sent using code division mode；

Fig. 4 sends preamble and the schematic diagram of RAR message for second provided in an embodiment of the present invention using code division mode；

Fig. 5 is that provided in an embodiment of the present invention the third sends preamble and the schematic diagram of RAR message using code division mode；

Fig. 6 for it is provided in an embodiment of the present invention the first the schematic diagram of preamble and RAR message is sent using frequency division manner；

Fig. 7 is second provided in an embodiment of the present invention using frequency division manner transmission preamble and the schematic diagram of RAR message；

Fig. 8 for it is provided in an embodiment of the present invention the first the schematic diagram of preamble and RAR message is sent using time division way；

Fig. 9 is second provided in an embodiment of the present invention using time division way transmission preamble and the schematic diagram of RAR message；

Figure 10 is the transmission method schematic diagram of another random accessing message provided in an embodiment of the present invention；Figure 11 is a kind of schematic diagram of the network equipment provided in an embodiment of the present invention；

Figure 12 is a kind of schematic diagram of user equipment provided in an embodiment of the present invention；

Figure 13 is the schematic diagram of another network equipment provided in an embodiment of the present invention；

Figure 14 is the schematic diagram of another user equipment provided in an embodiment of the present invention.Embodiment

In order to realize coverage enhancement, the embodiments of the invention provide a kind of transmission method of random accessing message during use signal repetitive mode, this method can be applied in Long Term Evolution (Long Term Evolution, LTE) system, WCDMA（ Wideband Code Division Multiple Access , WCDMA ) System, high-speed packet access（High Speed Packet Access, HSPA) in system or TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) system etc. communication system.

Shown in Figure 2, a kind of transmission method of random accessing message provided in an embodiment of the present invention comprises the following steps：

S21, the random access leader sequence for receiving user equipment transmission, and determine the corresponding accidental access response of random access leader sequence that each user equipment is sent；

Wherein, the corresponding accidental access response RAR of random access leader sequence that user equipment is sent includes the uplink synchronous time advance TA values and/or suitable transmission power for realizing the user equipment uplink synchronous.

In the embodiment of the present invention, the user equipment with different coverage enhancement grades includes following two situations：One is differed to the coverage enhancement grade of the user equipment of base station transmission random access leader sequence, for example, there is three user equipmenies（Be designated as UE1, UE2 and UE3) to base station send random access guiding sequence it is bad ' J, UE1 coverage enhancement grade is coverage enhancement grade（Coverage Improvement level, CI level) 1, the coverage enhancement grade that the coverage enhancement grade that UE2 coverage enhancement grade is CI level2 and UE3 is the user equipment of CI leve, i.e., three differs；Two are differed to the coverage enhancement class section of the user equipment of base station transmission random access leader sequence, for example, there is three user equipmenies（It is designated as UE1, UE2 and UE3) send random access leader sequence to base station, UE1 coverage enhancement grade is that CI levell, UE2 coverage enhancement grade are that CI levell and UE3 coverage enhancement grade is that the coverage enhancement class section of the user equipment of CI level2, i.e., three is differed.

S22, the random access leader sequence sent according to the user equipment received and accidental access response sending method, it is determined that sending the parameter information needed for the corresponding accidental access response of random access leader sequence received；

Wherein, the sending method of accidental access response can be only fitted in coverage enhancement configuration information；The coverage enhancement configuration information can give user equipment by network side configuration concurrency, can also be arranged by network side and user equipment side both sides and each stored, can also provided and be pre-configured with to network side and user equipment side in the protocol.

Further, coverage enhancement configuration information also includes matching somebody with somebody for the random access resource under coverage enhancement scene Confidence breath etc. sends and receives involved information during random accessing message.

In the embodiment of the present invention, the sending method of accidental access response includes following two modes：Mode one, the corresponding accidental access response of random access leader sequence that the user equipment transmission with different coverage enhancement grades is sent using an accidental access response message, the corresponding accidental access response of random access leader sequence that will have the user equipment of different coverage enhancement grades to send, which is all encapsulated in an accidental access response message, to be sent；

Under which, sent because the corresponding accidental access response of random access leader sequence for sending the user equipment with different coverage enhancement grades is all encapsulated in an accidental access response message, so as to reduce the transmission expense of accidental access response message, Internet resources are saved.

Mode two, the corresponding accidental access response of random access leader sequence that the user equipment transmission with different coverage enhancement grades is sent using different accidental access response messages, i.e., using the different independently transmitted corresponding accidental access responses of random access leader sequence sent with different coverage enhancement class user equipment of accidental access response messages.

In the embodiment of the present invention, it is determined that transmission user equipment accidental access response needed for parameter information include：

For carrying at least one of the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and 4 outstanding yards of sequences of accidental access response message for scrambling base station transmission information.

It is preferred that, scrambler sequence can be Stochastic accessing ad Hoc wireless network temporary mark（Random Access-Radio Network Temporary Identity , RA-RNTI ).

S23, the parameter information according to determination, according to the sending method of accidental access response, accidental access response is sent to the user equipment with different coverage enhancement grades.

In the embodiment of the present invention, the executive agent of the above method is base station, is specifically as follows macro base station, micro-base station or control device etc..

In the embodiment of the present invention, the random access leader sequence that user equipment is sent is received, and determine the corresponding accidental access response of random access leader sequence that each user equipment is sent；The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, is received it is determined that sending Parameter information needed for the corresponding accidental access response of random access leader sequence arrived；And according to the parameter information of determination, according to the sending method of accidental access response, corresponding accidental access response is sent to the user equipment with different coverage enhancement grades, it is achieved thereby that the coverage enhancement repeated using signal.

In the embodiment of the present invention, one subframe of acquiescence is only used for transmission primaries random access leader sequence or an accidental access response message.

In the embodiment of the present invention, in step S22, random access leader sequence and the sending method of accidental access response that the user equipment with different coverage enhancement grades according to receiving is sent, it is determined that sending the number of repetition of the corresponding accidental access response message of random access leader sequence received, specifically include：If the first, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way one, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent using an accidental access response message, then：The random access leader sequence sent according to each user equipment received, it is determined that the coverage enhancement grade of each user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the number of repetition of the maximum corresponding accidental access response of coverage enhancement grade in coverage enhancement grade determined by obtaining, and it is used as the number of repetition for sending an accidental access response message.

Illustrate, assuming that user equipment 1 (its coverage enhancement grade is levell) user equipment 2 (its coverage enhancement grade is level2) have sent preamble to base station respectively, base station is after the preamble that user equipment 1 and user equipment 2 are sent is received, random access leader sequence group according to belonging to preamble determines that the coverage enhancement grade of user equipment 1 and user equipment 2 is respectively levell and level2 respectively, and according to the corresponding relation of coverage enhancement grade and number of repetition, the number of repetition for determining the corresponding preamble of levell and level2 is respectively rl and r2, and corresponding accidental access response RAR number of repetition is respectively R1 and R2 (assuming that R2>R1 ).Because configuration sends accidental access response using aforesaid way one in coverage enhancement configuration information, therefore, base station sends the accidental access response message for the accidental access response corresponding with the random access leader sequence that user equipment 2 is sent that encapsulates user equipment 1 according to R2.

Due to using number of repetition of the maximum corresponding number of repetition of coverage enhancement grade as an accidental access response message, so as to ensure that each user equipment can effectively receive an accidental access response message, and each user equipment is repeated according to the corresponding accidental access response of coverage enhancement grade of itself Number of times, receives the accidental access response message that base station is sent.

If the 2, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way two, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages, then：The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition corresponding to the corresponding accidental access response of the random access leader sequence for sending each user equipment.Further, according to the number of repetition corresponding to the corresponding accidental access response of random access leader sequence of each user equipment, the corresponding accidental access response message of random access leader sequence of the user equipment is sent.

In the embodiment of the present invention, in step S22, in the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that the delivery time of the corresponding accidental access response of the random access leader sequence for sending each user equipment, and during the scrambler sequence of the corresponding accidental access response of random access leader sequence for scrambling each user equipment, not only need to consider the sending method of random access leader sequence that the user equipment received sends and accidental access response, also need to consider random access leader sequence indicates different coverage enhancement grades using which kind of mode.The following detailed description of the scrambler sequence for the corresponding accidental access response of random access leader sequence for how determining to send the delivery time for the corresponding accidental access response of random access leader sequence that user equipment is sent and send for scrambling user equipment.

In the embodiment of the present invention, random access leader sequence can using it is following it is any be pre-configured with by the way of indicate different coverage enhancement grades：

Mode 1, random access leader sequence indicate different coverage enhancement grades in code division mode；Under which, the random access leader sequence being pre-configured with is divided into multiple random access leader sequence groups, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different.

It is preferred that, the maximal cover that be able to can be supported according to base station enhancing grade determines the quantity of random access leader sequence group so that the quantity of random access leader sequence group not ' j, can be supported in base station Maximal cover strengthens grade.

Illustrate, assuming that the maximal cover enhancing grade that base station can be supported is 3, that is CI level3, then the random access leader sequence preamble being pre-configured with three random access leader sequence groups be can be divided into, cl, c2 are designated as, c3, coverage enhancement grade is the preamble in i user equipment selection random access leader sequence group ci (i=l, 2,3).

Under which, after the random access leader sequence of user equipment transmission is received, the random access leader sequence group according to belonging to the random access leader sequence of the user equipment, it is determined that sending the coverage enhancement grade of the user equipment.

Under which, the sending method of accidental access response is different, it is determined that the mode of the parameter information needed for sending the corresponding accidental access response of user equipment random access leader sequence is also different, specifically：

If the first, the sending method of accidental access response is aforesaid way one, i.e., send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent, shellfish using an accidental access response message¹ J :

In step S23, according to the parameter information of determination, according to the sending method of accidental access response, accidental access response is sent to the user equipment with different coverage enhancement grades, is specially：

According to the parameter information of determination, an accidental access response message of the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent will be packaged with, be sent to the above-mentioned user equipment with different coverage enhancement grades.

Under which, it is determined that the parameter information needed for sending the corresponding accidental access response of random access leader sequence of user equipment is specially：

1st, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the delivery time of an accidental access response message, is specifically included：

It is n+k to determine the delivery time for sending an accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

It should be noted that last subframe for being used to carry random access leader sequence refers to, one In the random access resource in individual cycle, last is used for the subframe for carrying random access leader sequence.Illustrate, the first as shown in Figure 3 sends preamble and the schematic diagram of RAR message using code division mode, the running time-frequency resource that the preamble with different coverage enhancement grades is used in Fig. 3 is overlapping, and Fig. 3 is by the way of separated only to facilitate representing the preamble with different coverage enhancement grades that different user equipmenies is sent.The user equipment 1 of coverage enhancement grade 1 is identical with the starting subframe that the user equipment 2 of coverage enhancement grade 2 sends preamble in Fig. 3 and is n, the end subframe that user equipment 1 sends preamble is that the end subframe that user equipment 2 sends preamble is η₂ , n₃For the preamble of coverage enhancement grade 3 end subframe, the user equipment for being not covered with strengthening grade 3 in the present embodiment sends preamble to base station, then base station determines that the delivery time of an accidental access response message is n₃+ k.For user equipment 1 and user equipment 2, at the time of the end subframe that preamble can be sent by itself calculates reception one accidental access response message, it is specially：The time of reception for the accidental access response message that user equipment 1 is determined is+Ι ^,^ki ⁼ⁿ3 _ ⁿi ^{+ k};The time of reception for the accidental access response message that user equipment 2 is determined is n₂ +1^ , =n₃ _ n₂ + k。

And as shown in Figure 4 second sends preamble and the schematic diagram of RAR message using code division mode, the running time-frequency resource that the preamble of different coverage enhancement grades is used in Fig. 4 is overlapping, and Fig. 4 is by the way of separated only to facilitate representing the preamble for the different coverage enhancement grades that different user equipmenies is sent₀The user equipment 1 of coverage enhancement grade 1 is identical with the end subframe that the user equipment 2 of coverage enhancement grade 2 sends preamble in Fig. 4 and is n, and the starting subframe that user equipment 1 sends preamble is that the starting subframe that user equipment 2 sends preamble is n₂, n₃For the preamble of coverage enhancement grade 3 starting subframe, the user equipment for being not covered with strengthening grade 3 in the present embodiment sends preamble to base station, then base station determines that the delivery time of an accidental access response message is n+k；Accordingly, user equipment 1 and user equipment 2 determine that the time of reception of an accidental access response message is also n+k.

2nd, the random access leader sequence that is sent according to the user equipment that receives and accidental access response Sending method, it is determined that sending the scrambler sequence of an accidental access response message, is specifically included：It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of an accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with presetting coverage enhancement grade is sent；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of an accidental access response message, under which, due to indicating different coverage enhancement grades using code division, therefore, frequency domain information used in different random access leader sequences is identical.

Inside existing protocol, used scrambler sequence is RA-RNTI, and the computational methods of the scrambler sequence are as follows：

RA- ΚΝΉ = l + t _id + 10* f _id；

Wherein, t _ id is used Physical Random Access Channel（Physical Random Access Channel, PRACH) running time-frequency resource subframe number, its scope is 0≤t _ id<10, f _ id is used PRACH frequency domain information, and its scope is 0≤f _ id< 6.

It is preferred that, if the starting subframe that the user equipment with different coverage enhancement grades sends random access leader sequence is identical, then determine that the scrambler sequence for scrambling an accidental access response message calculates the numbering that t _ id used sends the identical starting subframe of random access leader sequence for the user equipment with different coverage enhancement grades, as shown in figure 3, determine " _ 1 is the numbering n for the identical starting subframe that user equipment 1 and user equipment 2 send preamble;

If the end subframe that the user equipment with different coverage enhancement grades sends random access leader sequence is identical, then determine that the scrambler sequence for scrambling an accidental access response message calculates the numbering that t _ id used sends the identical end subframe of random access leader sequence for the user equipment with different coverage enhancement grades, as shown in figure 4, determine 1 _ 11 be the numbering n of user equipment 1 and the transmission of user equipment 2 preamble identical starting subframe; If the starting subframe and end subframe when the user equipment with different coverage enhancement grades sends random access leader sequence are differed, it is determined that calculate the numbering or the numbering of end subframe that t-id used are used starting subframe when the random access leader sequence made an appointment is sent for scrambling the scrambler sequence of an accidental access response message.It is used as 4 outstanding yards of sequences to calculate t _ id used the numbering of starting subframe of the random access leader sequence when sending in the maximum or minimum corresponding random access leader sequence group of coverage enhancement grade or the numbering of end subframe for example, making an appointment.

It should be noted that, the corresponding relation of coverage enhancement grade and random access leader sequence group, and the information such as running time-frequency resource used in the random access leader sequence in random access leader sequence group, t-id random access leader sequence used as scrambler sequence calculating made an appointment etc. can be only fitted in coverage enhancement configuration information, so that user equipment can learn above- mentioned information with base station.

Under which, because the user equipment of different covering grades is when random access leader sequence is sent, identical running time-frequency resource can be used, an equal amount of running time-frequency resource can send a high random access leader sequence of coverage enhancement grade, the low random access leader sequence of multiple coverage enhancement grades can also be sent, as shown in Figure 5, on the running time-frequency resource of 15 repetitions of coverage enhancement grade 3, the preamble of 10 repetitions of a coverage enhancement grade 2 can be transmitted simultaneously, the preamble of 5 repetitions of three coverage enhancement grades 1 can also be transmitted simultaneously.Fig. 5 can regard the extension to situation shown in Fig. 4 as.

Under scene shown in Fig. 5, if subframe nll will be terminated, terminate four groups of corresponding RAR of preamble that subframe is nl2 and finish time is nl3 and be encapsulated in transmission in same RAR message, the three selected preamble of user equipment that may have coverage enhancement grade 1 are identical, now, for three groups of preamble of coverage enhancement grade 1, the preamble marks carried in the RAR message are identical, so, above-mentioned three groups of preamble user equipment be have sent after the RAR message is received, cannot distinguish the corresponding RAR of the above-mentioned three groups of preamble included in RAR message whether be oneself preamble accidental access response.

It is preferred that, under which, if at least two user equipmenies have sent identical random access leader sequence using different random access resources, this method also includes：

The first configured information is carried in an accidental access response message, wherein, the first instruction letter Cease for indicating different random access-in resource in a transmitted accidental access response message（Such as, running time-frequency resource) user equipment send the corresponding accidental access response of random access leader sequence.

For example, carrying the first configured information of two bits such as in the RAR, for distinguishing the corresponding accidental access responses of preamble that the user equipment of same coverage enhancement grade is sent, it so can be used for distinguishing four groups of preamble

Certainly, here can also be using other method processing preamble conflicts, such as user equipment reselects preamble, and the preamble newly selected is sent to base station, so that base station carries out subsequent treatment based on the preamble newly received.

If the 2, the sending method of accidental access response is aforesaid way two, send the accidental access response of the user equipment with different coverage enhancement grades respectively using different accidental access response messages, in shellfish ^ steps S23, according to the parameter information of determination, according to the sending method of accidental access response, accidental access response is sent to the user equipment with different coverage enhancement grades, is specially：

According to the parameter information of determination, the corresponding accidental access response message of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively to corresponding user equipment.

Under which, it is determined that the parameter information needed for sending the corresponding accidental access response of random access leader sequence that each user equipment is sent is specially：According to the sending method of the random access leader sequence of the user equipment received and accidental access response, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

Under which, due to sending the accidental access response of each user equipment respectively using different accidental access response messages, only need to allow the accidental access response message of the user equipment with different coverage enhancement grades to have the different frequency domain resource of different delivery times, occupancy or be scrambled using different scrambler sequences, so that ensureing the accidental access response message of the user equipment with different coverage enhancement grades will not clash.It is of course also possible to make the delivery time and scrambler sequence of the accidental access response message of the user equipment with different coverage enhancement grades differ.

Further, according to the random access leader sequence and accidental access response of the user equipment received Sending method, it is determined that the delivery time of the corresponding accidental access response message of the random access leader sequence for sending each user equipment, is specifically included：

It is determined that the delivery time of the accidental access response message of each user equipment is A+k, wherein, it is that each user equipment sends different starting subframes used in random access leader sequence or different end subframes, k is the sub-frame offset being pre-configured with.

Illustrate, still so that the first shown in Fig. 3 sends preamble and RAR message schematic diagram using code division mode as an example, the delivery time of the accidental access response message of user equipment 1 is+k, and the delivery time of the accidental access response message of user equipment 2 is n₂ + k。

And for example, second of use code division mode shown in Fig. 4 sends preamble and the schematic diagram of RAR message, the delivery time of the accidental access response message of user equipment 1 be l+k, the delivery time of the accidental access response message of user equipment 2 is n₂ + k。

Further, according to the sending method of the random access leader sequence of the user equipment received and accidental access response, it is determined that the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, is specifically included：

It is determined that calculating the numbering of used different subframes when t _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

Illustrate, still so that the first shown in Fig. 3 sends preamble and RAR message schematic diagram using code division mode as an example, used end subframe is different when sending random access leader sequence due to user equipment 1 and user equipment 2, therefore, 1 _ 11 for the RA-RNTI of the accidental access response message of scrambling user equipment 1 can be that user equipment 1 sends the used numbering for terminating subframe during random access leader sequence, t _ id for the RA-RNTI of the accidental access response message of scrambling user equipment 2 can be that user equipment 1 sends the used numbering n for terminating subframe during random access leader sequence₂。

And as shown in Figure 4 second is sent using code division mode exemplified by the schematic diagram of preamble and RAR message, used starting during due to user equipment 1 and the transmission random access leader sequence of user equipment 2 Subframe is different, therefore, and t _ id for the RA-RNTI of the accidental access response message of scrambling user equipment 1 can be the numbering that user equipment 1 sends used starting subframe during random access leader sequence

II！, t _ id for the RA-RNTI of the accidental access response message of scrambling user equipment 2 can be the numbering n that user equipment 1 sends used starting subframe during random access leader sequence₂。

Mode 2, random access leader sequence indicate different coverage enhancement grades with frequency division manner；Under which, by the random access resource being pre-configured with（Random access resource i.e. used in random access procedure, the configuration information of the random access resource can be only fitted in coverage enhancement configuration information, so that base station and user equipment can get the configuration information）It is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain.

It is preferred that, the maximal cover enhancing grade that be able to can be supported according to base station determines the quantity of resource group so that the quantity of resource group is not less than the maximal cover enhancing grade that base station can be supported.

Illustrate, it is assumed that the maximal cover enhancing grade that base station can be supported（CI level) it is 3, that is CI leve, the random access resource being pre-configured with can be then divided into three resource groups on frequency domain, first resource group fl (frequency domain of each random access resource is fl in the resource group) correspondence coverage enhancement grade 1, second resource group f2 (frequency domain of each random access resource is f2 in the resource group) correspondence coverage enhancement grade 2, and second resource group f3 (frequency domain of each random access resource is β in the resource group) correspondence coverage enhancement grade 3, coverage enhancement grade sends preamble for i user equipment selection on the corresponding random access resources of frequency domain fi.

Under which, the sending method of the accidental access response configured in coverage enhancement configuration information is different, it is determined that the mode of the parameter information needed for sending the corresponding accidental access response of user equipment random access leader sequence is also different, specifically：

If the first, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way one, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent using an accidental access response message, then：

In step S23, according to the parameter information of determination, according to the sending method of accidental access response, accidental access response is sent to the user equipment with different coverage enhancement grades, is specially： According to the parameter information of determination, an accidental access response message of the corresponding accidental access response of random access leader sequence that the user equipment for being packaged with different coverage enhancement grades is sent is sent to the user equipment of above-mentioned different coverage enhancement grades.

Under which, it is determined that the parameter information needed for sending the accidental access response of user equipment is specially：

1st, according to the random access leader sequence and the sending method of accidental access response of the user equipment received, it is determined that sending the delivery time of an accidental access response message, specifically include：

The delivery time for determining an accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with, and for details, reference can be made to the description in code division mode.

2nd, according to the random access leader sequence and the sending method of accidental access response of the user equipment received, it is determined that sending the scrambler sequence of an accidental access response message, specifically include：

It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of an accidental access response message, or, the numbering of used subframe, for details, reference can be made to the description in code division mode when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And, it is determined that being used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent for scrambling the scrambler sequence of an accidental access response message to calculate frequency domain index f _ id used, under which, due to indicating different coverage enhancement grades using frequency division, therefore, frequency domain information used in different random access leader sequences is different.

It is preferred that, make an appointment and used frequency domain information when random access leader sequence is sent in the maximum or minimum corresponding random access leader sequence group of coverage enhancement grade is calculated into f _ id used as scrambler sequence.

For example, the frequency domain resource that the first preamble for sending different coverage enhancement grades in preamble and the schematic diagram of RAR message, Fig. 6 using frequency division manner as shown in Figure 6 is used is nonoverlapping.The user equipment 1 of coverage enhancement grade 1 is identical with the starting subframe that the user equipment 2 of coverage enhancement grade 2 sends preamble in Fig. 6 and is n, and the end subframe that user equipment 1 sends preamble is , the end subframe that user equipment 2 sends preamble is n₂, n₃For the preamble of coverage enhancement grade 3 end subframe, the user equipment for being not covered with strengthening grade 3 in the present embodiment sends preamble to base station, then base station determines that the delivery time of an accidental access response message is n₃+ k.For user equipment 1 and user equipment 2, at the time of the end subframe that preamble can be sent by itself calculates reception one accidental access response message, it is specially：The time of reception for the accidental access response message that user equipment 1 is determined is ι+1^, k_{1 =}n₃- ^ + k ;The time of reception for the accidental access response message that user equipment 2 is determined is n₂ + k₂ , 1¾ =n₃ _ n₂ + k。

And the frequency domain resource that the preamble that as shown in Figure 7 second sends different coverage enhancement grades in preamble and the schematic diagram of RAR message, Fig. 7 using frequency division manner is used is nonoverlapping.The user equipment 1 of coverage enhancement grade 1 is identical with the end subframe that the user equipment 2 of coverage enhancement grade 2 sends preamble in Fig. 7 and is n, and the starting subframe that user equipment 1 sends preamble is that the starting subframe that user equipment 2 sends preamble is n₂, n₃For the preamble of coverage enhancement grade 3 starting subframe, the user equipment for being not covered with strengthening grade 3 in the present embodiment sends preamble to base station, then base station determines that the delivery time of an accidental access response message is n+k;Accordingly, user equipment

1 and user equipment 2 determine an accidental access response message the time of reception also be n+k.

Under which, user equipment with different coverage enhancement grades is possible to select identical random access leader sequence, because employing mode one sends accidental access response message, so, whether the user equipment with different coverage enhancement grades just cannot be distinguished by being the accidental access response for being directed to the random access leader sequence oneself sent after the accidental access response message of base station transmission is received.It is preferred that, in the embodiment of the present invention, in step S23, according to the parameter information of determination, an accidental access response message of the accidental access response of the user equipment of different coverage enhancement grades will be packaged with, the user equipment of above-mentioned different coverage enhancement grades is sent to, in addition to：

The second configured information is carried in an accidental access response message, wherein, second configured information is used to indicate the coverage enhancement grade corresponding to each accidental access response packaged by an accidental access response message.

For example, such as setting the configured information of two bits, it can be used for distinguishing four groups of different coverings Strengthen the preamble of grade, coverage enhancement grade as corresponding to " 00 " indicates the accidental access response is levell, " 01 " indicates that the coverage enhancement grade corresponding to the accidental access response is leve2, " 10 " indicate that the coverage enhancement grade corresponding to the accidental access response is leve3, and " 11 " indicate that the coverage enhancement grade corresponding to the accidental access response is leve4 etc..

If the 2, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way two, using the independently transmitted corresponding accidental access response of random access leader sequence sent with different coverage enhancement class user equipment of different accidental access response messages, then：

According to the parameter information of determination, by the corresponding accidental access response message of user equipment with different coverage enhancement grades, corresponding user equipment is sent respectively to.

Under which, it is determined that the parameter information needed for sending the accidental access response of user equipment is specially：According to the sending method of the random access leader sequence of the user equipment received and accidental access response, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

Under which, due to different coverage enhancement grades user equipment send random access leader sequence when used frequency domain information differ, therefore, the scrambler sequence for the accidental access response message for the user equipment for scrambling different coverage enhancement grades calculates f _ id used and differed.

Further, the random access leader sequence and the sending method of accidental access response sent according to each user equipment, it is determined that the delivery time for sending the corresponding accidental access response message of random access leader sequence that each user equipment is sent is A+k, wherein, different starting subframes used in random access leader sequence or different end subframes are sent for each user equipment, k is the sub-frame offset being pre-configured with, referring specifically to the description in code division mode.

Mode 3, random access leader sequence indicate different coverage enhancement grades in a time division manner； Under which, by the random access resource being pre-configured with（Random access resource i.e. used in random access procedure, the configuration information of the random access resource can be only fitted in coverage enhancement configuration information, so that base station and user equipment can get the configuration information）It is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

Illustrate, it is assumed that the maximal cover enhancing grade that base station can be supported（CI level) it is 3, that is CI leve, the random access resource being pre-configured with can be then divided into three resource groups in time domain, first resource group tl (delivery time of each random access resource is tl in the resource group) correspondence coverage enhancement grade 1, second resource group t2 (delivery time of each random access resource is t2 in the resource group) correspondence coverage enhancement grade 2, and second resource group t3 (delivery time of each random access resource is t3 in the resource group) correspondence coverage enhancement grade 3, coverage enhancement grade sends preamble for i user equipment selection on the corresponding random access resources of ti.

If the first, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way one, the corresponding accidental access response of random access leader sequence that the user equipment for sending different coverage enhancement grades using an accidental access response message is sent, shellfish¹J：

In step S23, according to the parameter information of determination, according to the sending method of accidental access response, accidental access response is sent to user equipment, is specially：

According to the parameter information of determination, an accidental access response message of the corresponding accidental access response of random access leader sequence that the user equipment for being packaged with different coverage enhancement grades is sent is sent to the user equipment of above-mentioned different coverage enhancement grades.

It is determined that the delivery time for sending an accidental access response message is n+k, wherein, n is advance Last of configuration is used for the numbering for carrying the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with, and for details, reference can be made to the description in code division mode.

It is determined that calculating the numbering of used subframe when subframe index t _ id used sends for random access leader sequence corresponding with coverage enhancement grade set in advance for scrambling the scrambler sequence of an accidental access response message, under which, due to indicating different coverage enhancement grades using the time-division, therefore, the delivery time of different random access leader sequences is different；And,

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment of different coverage enhancement grades for scrambling the scrambler sequence of an accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

It is preferred that, it is determined that calculating the numbering or the numbering of end subframe that subframe index t _ id used is used starting subframe when the corresponding random access leader sequence of maximum or minimum coverage enhancement grade is sent for scrambling the scrambler sequence of an accidental access response message.

For example, the time-domain resource that the first preamble for sending different coverage enhancement grades in preamble and the schematic diagram of RAR message, Fig. 8 using time division way as shown in Figure 8 is used is nonoverlapping.The preamble of the user equipment 1 of coverage enhancement grade 1 delivery time is tl in Fig. 8, and the preamble of the user equipment 2 of coverage enhancement grade 2 delivery time is t2, and the end subframe that user equipment 1 sends preamble is_ηι, the end subframe that user equipment 2 sends preamble is n₂, n₃For the preamble of coverage enhancement grade 3 end subframe, the user equipment for being not covered with strengthening grade 3 in the present embodiment sends preamble to base station, then base station determines that the delivery time of an accidental access response message is n₃+ k.For user equipment 1 and user equipment 2, at the time of the end subframe that preamble can be sent by itself calculates reception one accidental access response message, it is specially：The time of reception for the accidental access response message that user equipment 1 is determined is+l, k^^-^+k;User The time of reception for the accidental access response message that equipment 2 is determined is n₂ + k₂ , =η₃ _ η₂+ k.Under which, the user equipment of different coverage enhancement grades is possible to select identical random access leader sequence, because employing mode one sends accidental access response message, so, whether the user equipment of different coverage enhancement grades just cannot be distinguished by being the accidental access response for being directed to the random access leader sequence oneself sent after the accidental access response message of base station transmission is received.It is preferred that, in the embodiment of the present invention, in step S23, according to the parameter information of determination, an accidental access response message of the accidental access response of the user equipment of different coverage enhancement grades will be packaged with, the user equipment of above-mentioned different coverage enhancement grades is sent to, in addition to：

The second configured information is carried in an accidental access response message, wherein, the configured information is used to indicate the coverage enhancement grade corresponding to each accidental access response packaged by an accidental access response message, for details, reference can be made to the description in frequency division manner.

If the 2, the sending method of the accidental access response configured in coverage enhancement configuration information is aforesaid way two, use the different independently transmitted corresponding accidental access responses of random access leader sequence sent with different coverage enhancement class user equipment of accidental access response message, shellfish ^:

In step S23, according to the parameter information of determination, according to the sending method of accidental access response, accidental access response is sent to the user equipment of different coverage enhancement grades, is specially：

According to the parameter information of determination, by the corresponding accidental access response message of user equipment of different coverage enhancement grades, corresponding user equipment is sent respectively to.

Under which, it is determined that the parameter information needed for sending the accidental access response of user equipment is specially：According to the sending method of the random access leader sequence of the user equipment received and accidental access response, a different scrambler sequence for being used to scramble the corresponding accidental access response message of random access leader sequence that the user equipment is sent is determined for each user equipment, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

Under which, because the delivery time of random access leader sequence that the user equipment of different coverage enhancement grades is sent is differed, therefore, for scramble different coverage enhancement grades user equipment it is random Access response message scrambler sequence calculates t _ id used and differed.

Further, according to the sending method of the random access leader sequence of each user equipment and accidental access response, it is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is wherein, different starting subframes used in random access leader sequence or different end subframes are sent for each user equipment, k is the sub-frame offset being pre-configured with, referring specifically to the description in code division mode.

For example, the time-domain resource that as shown in Figure 9 second preamble for sending different coverage enhancement grades in preamble and the schematic diagram of RAR message, Fig. 9 using time division way is used is nonoverlapping.The preamble of the user equipment 1 of coverage enhancement grade 1 delivery time is tl in Fig. 9, the preamble of the user equipment 2 of coverage enhancement grade 2 delivery time is t2, and the end subframe that user equipment 1 sends preamble is that the end subframe that user equipment 2 sends preamble is n₂, then the delivery time that base station determines to send the corresponding accidental access response message of random access leader sequence of each user equipment transmission is 1+k；Accordingly, user equipment 1 determines that the time of reception of its corresponding accidental access response message of preamble sent isⁿi + ^k, the time of reception of its corresponding accidental access response message of preamble sent of the determination of user equipment 2 is n₂ + k。

Based on same inventive concept, the embodiment of the present invention additionally provides a kind of transmission method of random accessing message, and shown in Figure 10, this method includes：

S101, to base station random access leader sequence is sent, and the coverage enhancement grade of itself is indicated by the random access leader sequence of transmission；

S102, the sending method according to accidental access response, determine the parameter information needed for itself receiving random access response message；

Wherein, above-mentioned sending method sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages is sent；Above-mentioned parameter information includes：It is random for carrying Access at least one of running time-frequency resource information, the time of reception of accidental access response message and the scrambler sequence for descrambling accidental access response message of response message information.

Further, the sending method of accidental access response can be only fitted in coverage enhancement configuration information；The coverage enhancement configuration information can give user equipment by network side configuration concurrency, can also be arranged by network side and user equipment side both sides and each stored, can also provided and be pre-configured with to network side and user equipment side in the protocol.

Further, configuration information of random access resource etc. that coverage enhancement configuration information is also included under coverage enhancement scene sends and receives involved information during random accessing message.

In the embodiment of the present invention, the parameter information needed for user equipment receiving random access response message includes：For carrying at least one of the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

S103, the parameter information according to determination, according to the number of repetition of the corresponding accidental access response of coverage enhancement grade of itself, receive the accidental access response message that base station is sent.

The executive agent of the above method is user equipment, can be mobile terminal, MTC device etc..

In the embodiment of the present invention, random access leader sequence is sent to base station, and the coverage enhancement grade of itself is referred to by the random access leader sequence of transmission；According to the sending method of accidental access response, the parameter information needed for itself receiving random access response is determined；And according to the parameter information of determination, according to the number of repetition of the corresponding accidental access response of coverage enhancement grade of itself, receive the accidental access response message that base station is sent, it is achieved thereby that the coverage enhancement repeated using signal, it ensure that base station can effectively receive the random access leader sequence that each user equipment is sent, also ensure that terminal can effectively receive base station and send accidental access response.

In force, because random access leader sequence can send random access leader sequence to base station, specifically include following three kinds of implementations using code division, frequency division, indicate in different coverage enhancement grades, step S101 by the way of the time-division：

1st, random access leader sequence indicates different coverage enhancement grades using code division mode, then step

S101 is specially：

It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and from identified A random access leader sequence is selected in random access leader sequence group, selected random access leader sequence is sent to base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different.

2nd, random access leader sequence indicates different coverage enhancement grades using frequency division manner, then step

S101 is specially：

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain.

3rd, random access leader sequence indicates different coverage enhancement grades using time division way, then step

S101 is specially：It is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

It should be noted that random access leader sequence specifically indicates that different coverage enhancement grades can be configured in coverage enhancement configuration information using which kind of mode.

In force, according to the difference of the sending method of accidental access response, the parameter information needed for the base station determined in step S102 sends accidental access response is also different, specific as follows：

First, the sending method of accidental access response is the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, shellfish ^:

1st, according to the sending method of accidental access response, it is n+k to determine the time of reception for receiving an accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, k is the sub-frame offset being pre-configured with, and for details, reference can be made to the description in above-mentioned network side method.

It should be noted that the numbering of last subframe for carrying random access leader sequence, and the sub-frame offset being pre-configured with, it can be configured in coverage enhancement configuration information, so that network side Above- mentioned information can be got with user equipment side.

2nd, according to the sending method of accidental access response, it is determined that descrambling the scrambler sequence of an accidental access response message, specifically include：

It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of an accidental access response message, or, the numbering of used subframe, for details, reference can be made to the description in above-mentioned network side method when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of an accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent, for details, reference can be made to the description in above-mentioned network side method.

It is preferred that, t _ id that above-mentioned determination is used to descramble used in the scrambler sequence calculating of an accidental access response message is specially：

Because the user equipment with different coverage enhancement grades is possible to select identical random access leader sequence, in order to avoid the random access leader sequence of the user equipment with different coverage enhancement grades is clashed, therefore, this method also includes：

The first configured information is carried according in the accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in an accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource.

2nd, the sending method of accidental access response is to be sent respectively using different accidental access response messages The corresponding accidental access response of random access leader sequence that the user equipment of different coverage enhancement grades is sent, then:

1st, according to the sending method of accidental access response, the time of reception for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, 1^ originates subframe or end subframe itself to send used in random access leader sequence, k is the sub-frame offset being pre-configured with, and for details, reference can be made to the description in above-mentioned network side method.

2nd, the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself is determined, is specifically included：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself, the description in above-mentioned network side method for details, reference can be made to；And/or,

It is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself, the description in above-mentioned network side method for details, reference can be made to.

Based on same inventive concept, a kind of network equipment is additionally provided in the embodiment of the present invention, because the principle that the equipment solves problem is similar to a kind of transmission method of random accessing message shown in Fig. 2, therefore implementations of the equipment may refer to the implementation of method, be repeated no more in place of repeating.

It is shown in Figure 11, the network equipment provided in an embodiment of the present invention, including：

Receiving module 111, for receiving the random access leader sequence of user equipment transmission, and determines the corresponding accidental access response of random access leader sequence that each user equipment is sent；

Processing module 112, for the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of random access leader sequence；And,

Sending module 113, for the parameter information determined according to processing module 112, according to the sending method of accidental access response, accidental access response is sent to user equipment；

Wherein, sending method is sent including the use of an accidental access response message has different coverage enhancements The corresponding accidental access response of random access leader sequence that the user equipment of grade is sent, or, the corresponding accidental access response of random access leader sequence that the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages is sent；It is determined that the parameter information needed for sending the corresponding accidental access response of random access leader sequence includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

In force, if the sending method of accidental access response is the corresponding accidental access response of random access leader sequence that the user equipment for sending specific different coverage enhancement grades using an accidental access response message is sent, then processing module 112 determines to send the delivery time of an accidental access response message, specifically includes：

The random access leader sequence sent according to user equipment, determines the coverage enhancement grade of user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the maximum corresponding number of repetition of coverage enhancement grade in coverage enhancement grade determined by obtaining, and it is used as the number of repetition for sending an accidental access response message.

Further, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then processing module 112 determines to send the delivery time of an accidental access response message, specifically includes：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining an accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

Further, if the sending method of accidental access response is the corresponding accidental access response of random access leader sequence that the user equipment for sending different coverage enhancement grades using an accidental access response message is sent, processing module 112 determines to send the scrambler sequence of an accidental access response according in the following manner：It is determined that calculating subframe index used for the scrambler sequence for scrambling an accidental access response message The numbering of used identical subframe when t _ id sends random access leader sequence for the user equipment of different coverage enhancement grades, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is preferred that, processing module 112 determines that the scrambler sequence for scrambling an accidental access response message calculates t _ id used and is specially：

The numbering or identical of used identical starting subframe terminate the numbering of subframe during the user equipment transmission random access leader sequence of different coverage enhancement grades；Or,

Based on above-described embodiment, if at least two user equipmenies have sent identical random access leader sequence using different random access resources, processing module 112 is additionally operable to：

The first configured information is carried in an accidental access response message, first configured information is used to indicate the corresponding accidental access response of random access leader sequence sent in a transmitted accidental access response message using the user equipment of different random access-in resource, or

The second configured information is carried in an accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message.

In force, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then processing module 112 determines to send the number of repetition needed for the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence sent according to each user equipment, it is determined that the covering of each user equipment Strengthen grade；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

Further, if the sending method of accidental access response is the corresponding accidental access response message of random access leader sequence that the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages is sent, then processing module 112 determines to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

Specifically, processing module 112, which is the corresponding accidental access response message of random access leader sequence that each user equipment is sent, determines a different delivery time, specifically include：

It is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is A+k, wherein, different starting subframes used in random access leader sequence or different end subframes are sent for each user equipment, k is the sub-frame offset being pre-configured with.

Specifically, processing module 112 determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, specifically include：

In force, processing module 112 determines the coverage enhancement grade of user equipment, specifically includes：Random access leader sequence group according to belonging to the random access leader sequence that user equipment is sent, really Surely the coverage enhancement grade of the user equipment of random access leader sequence is sent, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

According to the frequency domain position for the random access resource for carrying the random access leader sequence that each user equipment is sent, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

According to the time-domain position for the random access resource for carrying the random access leader sequence that each user equipment is sent, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

Based on same inventive concept, a kind of user equipment is additionally provided in the embodiment of the present invention, because the principle that the equipment solves problem is similar to a kind of transmission method of random accessing message shown in Figure 10, therefore implementations of the equipment may refer to the implementation of method, be repeated no more in place of repeating.

It is shown in Figure 12, user equipment provided in an embodiment of the present invention, including：

Sending module 121, for sending random access leader sequence to base station, and indicates by random access leader sequence the coverage enhancement grade of itself；

Processing module 122, for the sending method according to accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of random access leader sequence；And,

Receiving module 123, for the parameter information determined according to processing module 122, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, receives the accidental access response message that base station is sent；Wherein, the sending method of accidental access response sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages is sent；

Parameter information needed for receiving the corresponding accidental access response message of random access leader sequence includes： For carrying at least one of the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

In force, sending module 121 specifically for：

It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, it is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

In force, if the sending method of accidental access response is the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, processing module 122 specifically for：

According to the sending method of accidental access response, it is n+k to determine the time of reception for receiving an accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

In force, if the sending method of accidental access response is the accidental access response for the user equipment that different coverage enhancement grades are sent using an accidental access response message, then processing module 122 determines that descrambling receives the scrambler sequence of an accidental access response message, specifically includes：

It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment of different coverage enhancement grades for descrambling the scrambler sequence of the accidental access response message received, or, random access leader sequence corresponding with coverage enhancement grade set in advance The numbering of used subframe during transmission；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment of different coverage enhancement grades for descrambling the scrambler sequence of the accidental access response message received, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

It is preferred that, processing module 122 determines that the scrambler sequence for descrambling the accidental access response message received calculates t _ id used and is specially：

In force, processing module 122 is additionally operable to：

The first configured information is carried according in the accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in an accidental access response message, wherein, the first configured information be used for the corresponding accidental access response ^ of random access leader sequence sent in an accidental access response message being received of instruction user equipment using the user equipment of different random access-in resource or

The second configured information is carried according in the accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in an accidental access response message, wherein, the second configured information is used for the corresponding accidental access response of random access leader sequence that the user equipment of different coverage enhancement grades in the accidental access response message that instruction user equipment is received is sent.

In force, if the sending method of accidental access response is to send the accidental access response of the user equipment with different coverage enhancement grades respectively using different accidental access response messages, processing module 122 specifically for：

According to the sending method of accidental access response, determine itself random access leader sequence it is corresponding with The time of reception of machine access response is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with.

In force, if the sending method of accidental access response is the accidental access response for the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages, then processing module 122 determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself, specifically includes：

With reference to preferred hardware configuration, structure, processing mode to the network equipment provided in an embodiment of the present invention and user equipment are illustrated.

It is shown in Figure 13, the network equipment provided in an embodiment of the present invention, including：

Transceiver 131, for receiving the random access leader sequence of user equipment transmission, and determines the corresponding accidental access response of random access leader sequence that each user equipment is sent；

Processor 132, for the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of random access leader sequence；And, triggering transceiver 131, according to the sending method of accidental access response, accidental access response is sent to user equipment according to the parameter information of determination；

Wherein, sending method sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that each user equipment is sent is sent respectively using different accidental access response messages；Parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

In force, if the sending method of accidental access response is to be sent out using an accidental access response message The corresponding accidental access response of random access leader sequence for sending the user equipment with different coverage enhancement grades to send, the then determination of processor 132 sends the delivery time of an accidental access response message, specifically includes：

Further, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, processor 132 is determined to send the delivery time of an accidental access response message, specifically included：The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining an accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

Further, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, processor 132 determines to send the scrambler sequence of an accidental access response according in the following manner：It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment of different coverage enhancement grades for scrambling the scrambler sequence of an accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is preferred that, processor 132 determines the scrambler sequence for scrambling an accidental access response message Calculating t _ id used is specially：

Based on above-described embodiment, if at least two user equipmenies have sent identical random access leader sequence using different random access resources, processor 132 is additionally operable to：

The second configured information is carried in an accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that the user equipment of different coverage enhancement grades in a transmitted accidental access response message is sent.

In force, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then processor 132 determines to send the number of repetition needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

Further, if the sending method of accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then processor 132 determines to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence and the hair of accidental access response sent according to the user equipment received Send mode, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

Specifically, processor 132, which is the corresponding accidental access response message of random access leader sequence that each user equipment is sent, determines a different delivery time, specifically include：

Specifically, processor 132 determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, specifically include：

In force, processor 132 determines the coverage enhancement grade of user equipment, specifically includes：Random access leader sequence group according to belonging to the random access leader sequence that user equipment is sent, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

According to the frequency domain position for the random access resource for carrying the random access leader sequence that each user equipment is sent, it is determined that sending the coverage enhancement grade of the user equipment of random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, each resource group pair on frequency domain Answer a different coverage enhancement grade；Or,

It is shown in Figure 14, user equipment provided in an embodiment of the present invention, including：

Transceiver 141, for sending random access leader sequence to base station, and indicates by random access leader sequence the coverage enhancement grade of itself；

Processor 142, for the sending method according to accidental access response, it is determined that the parameter information needed for the corresponding accidental access response message of the random access leader sequence for receiving itself；And triggering transceiver 141 is according to the parameter information of determination, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, the accidental access response message that base station is sent is received；

Wherein, the sending method of accidental access response sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that each user equipment is sent is sent respectively using different accidental access response messages；

Parameter information needed for sending the corresponding accidental access response message of random access leader sequence includes：For carrying at least one of the running time-frequency resource information of accidental access response message, the delivery time of accidental access response message and scrambler sequence for scrambling accidental access response message information.

In force, transceiver 141 specifically for：

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, random access leader sequence is sent on identified frequency domain position to base station, wherein, the random access resource used in random access procedure exists It is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or, it is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

In force, if the sending method of accidental access response is the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, processor 142 specifically for：

In force, if the sending method of accidental access response is the accidental access response that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then processor 142 determines the scrambler sequence for descrambling the accidental access response message received, specifically includes：

It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment of different coverage enhancement grades for descrambling the scrambler sequence of the accidental access response message received, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is preferred that, processor 142 determines that the scrambler sequence for descrambling the accidental access response message received calculates t _ id used and is specially：

Used when random access leader sequence corresponding with coverage enhancement grade set in advance is sent The numbering of beginning subframe or the numbering for terminating subframe.

In force, processor 142 is additionally operable to：

In force, if the sending method of accidental access response be sent respectively using different accidental access response messages different coverage enhancement grades user equipment accidental access response, processor 142 specifically for：According to the sending method of accidental access response, the delivery time for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with.

In force, if the sending method of accidental access response is the accidental access response for the user equipment for sending different coverage enhancement grades respectively using different accidental access response messages, then processor 142 determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for scrambling itself, specifically includes：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for scrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for scrambling itself.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or Computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can be used (includes but is not limited to magnetic disk storage, CD-ROM, optical memory etc. in one or more computer-usable storage mediums for wherein including computer usable program code）The form of the computer program product of upper implementation.

The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow chart and/or block diagram of computer program product are described.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that produce the device for being used for realizing the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames by the instruction of the computing device of computer or other programmable data processing devices.

These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices, make to perform series of operation steps on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.The spirit and scope of invention.So, if these modifications and variations of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims

Claim

1st, a kind of transmission method of random accessing message, it is characterised in that this method includes：The random access leader sequence that user equipment is sent is received, and determines the corresponding accidental access response of random access leader sequence that each user equipment is sent；

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And,

According to the parameter information of determination, according to described sender formula, accidental access response is sent to the user equipment；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

2nd, the method as described in claim 1, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that sending the number of repetition of one accidental access response message, specifically include：

The random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment；And,

According to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the corresponding number of repetition of coverage enhancement grade maximum in identified coverage enhancement grade is obtained, and be used as the number of repetition for sending one accidental access response message. 3rd, method as claimed in claim 2, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that sending the delivery time of one accidental access response message, specifically include：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

4th, method as claimed in claim 2 or claim 3, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the scrambler sequence of one accidental access response, specifically include：

It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

5th, method as claimed in claim 4, it is characterised in that it is determined that being specially for scrambling t _ id used in the scrambler sequence calculating of one accidental access response message：

User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or, The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

6th, the method as described in any one of claim 2 ~ 5, it is characterized in that, if with different coverage enhancement grades at least two described in user equipment have sent identical random access leader sequence using different random access resources, methods described also includes：

The first configured information is carried in one accidental access response message, first configured information is used to indicate the corresponding accidental access response of random access leader sequence sent in a transmitted accidental access response message using the user equipment of different random access-in resource, or

The second configured information is carried in one accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message.

7th, the method as described in claim 1, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence sent with different coverage enhancement class user equipment respectively using different accidental access response messages, the random access leader sequence and the sending method of accidental access response then sent according to the user equipment received, it is determined that the number of repetition needed for sending the corresponding accidental access response of random access leader sequence that each user equipment is sent, is specifically included：

The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And,

According to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

8th, method as claimed in claim 7, it is characterized in that, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that the parameter information needed for sending the corresponding accidental access response of random access leader sequence that each user equipment is sent, is specifically included：The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is The corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

9th, method as claimed in claim 8, it is characterized in that, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the corresponding accidental access response message of random access leader sequence sent for each user equipment determines a different delivery time, specifically includes：

It is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is wherein, 1^ sends different starting subframes used in random access leader sequence or different end subframes for each user equipment, and k is the sub-frame offset being pre-configured with.

10th, method as claimed in claim 8, it is characterized in that, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, is specifically included：

It is determined that calculating used 1 for the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent；_ 13 be the numbering of used different subframes when each user equipment sends random access leader sequence；And/or,

It is determined that calculating used different frequency domain information when f _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

11st, the method as described in claim 2 or 7, it is characterised in that the random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment, specifically includes：The random access leader sequence group belonging to random access leader sequence sent according to the user equipment, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or, The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

The time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

12nd, a kind of transmission method of random accessing message, it is characterised in that this method includes：Random access leader sequence is sent to base station, and the coverage enhancement grade of itself is indicated by the random access leader sequence；

According to the sending method of accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of the random access leader sequence；And,

According to the parameter information of determination, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, the accidental access response message that the base station is sent is received；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying at least one of the running time-frequency resource information of accidental access response, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

13rd, method as claimed in claim 12, it is characterised in that send random access leader sequence to the base station, specifically include：

It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, each random access leader sequence group one different coverage enhancement grade of correspondence, each random access leader sequence group includes the random access guiding that at least one is pre-configured with The random access leader sequence included in sequence and different random access lead sequence group is different；Or,

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

It is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

14th, the method as described in claim 12 or 13, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message,：

According to the sending method of accidental access response, it is n+k to determine the time of reception for receiving one accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

15th, the method as described in any one of claim 12 ~ 14, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then according to the sending method of accidental access response, it is determined that the scrambler sequence for descrambling the one accidental access response message received, is specifically included：

It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that being made for descrambling when f _ id used in the scrambler sequence calculating of the one accidental access response message received sends random access leader sequence by the user equipment with different coverage enhancement grades Same frequency information, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

16th, method as claimed in claim 15, it is characterised in that it is determined that being specially for descrambling t _ id used in the scrambler sequence calculating of the one accidental access response message received：

User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

17th, the method as described in any one of claim 13 ~ 16, it is characterised in that methods described also includes：

The first configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

The second configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, second configured information is used in the accidental access response message that instruction user equipment is received the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send.

18th, the method as described in claim 12 or 13, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages,：

According to the sending method of accidental access response, the time of reception for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with. 19th, the method as described in claim 12 or 13, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself is then determined, is specifically included：It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself.

20th, a kind of network equipment, it is characterised in that the network equipment includes：

Receiving module, the random access leader sequence for receiving user equipment transmission, and determine the corresponding accidental access response of random access leader sequence that each user equipment is sent；

Processing module, for the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And,

Sending module, for the parameter information determined according to the processing module, according to described sender formula, accidental access response is sent to the user equipment；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the number of repetition of accidental access response message, the delivery time of accidental access response message and for scrambling at least one of the scrambler sequence of accidental access response message sent information.

21st, the network equipment as claimed in claim 20, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processing module is determined The delivery time of one accidental access response message is sent, is specifically included：

The random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the maximum corresponding number of repetition of coverage enhancement grade in coverage enhancement grade determined by obtaining, and it is used as the number of repetition for sending one accidental access response message.

22nd, the network equipment as claimed in claim 21, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processing module determines to send the delivery time of one accidental access response message, specifically includes：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

23rd, the network equipment as described in claim 21 or 22, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processing module determines to send the scrambler sequence of one accidental access response according in the following manner：

It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

24th, the network equipment as claimed in claim 23, it is characterised in that the processing module determines to use Calculating t _ id used in the scrambler sequence for scrambling one accidental access response message is specially：User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

25th, the network equipment as described in any one of claim 21 ~ 24, it is characterised in that if user equipment described at least two have sent identical random access leader sequence using different random access resources, the processing module is additionally operable to：

The first configured information is carried in one accidental access response message, first configured information is used to indicate the corresponding accidental access response of random access leader sequence sent in a transmitted accidental access response message using the user equipment of different random access-in resource, or

The second configured information is carried in one accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message.

26th, the network equipment as claimed in claim 20, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response message of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module determines to send the number of repetition needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence sent according to each user equipment, it is determined that the coverage enhancement grade of each user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

27th, the network equipment as claimed in claim 26, it is characterized in that, if the sending method of the accidental access response is the corresponding accidental access response message of random access leader sequence that the user equipment for sending specific different coverage enhancement grades respectively using different accidental access response messages is sent, the processing Module is determined to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, specifically included：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

28th, the network equipment as claimed in claim 27, it is characterised in that the processing module determines a different delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

It is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is wherein, different starting subframes used in random access leader sequence or different end subframes are sent for each user equipment, k is the sub-frame offset being pre-configured with.

29th, the network equipment as claimed in claim 27, it is characterised in that the processing module determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

It is determined that calculating the numbering of used different subframes when t _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent；And/or,

It is determined that calculating used different frequency domain information when f _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

30th, the network equipment as described in claim 21 or 26, it is characterised in that the processing module determines the coverage enhancement grade of the user equipment, specifically includes：

The random access leader sequence group belonging to random access leader sequence sent according to the user equipment, it is determined that the coverage enhancement grade of the user equipment of the random access leader sequence is sent, wherein, often The random access leader sequence included in individual random access leader sequence group one different coverage enhancement grade of correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

The time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

31st, a kind of user equipment, it is characterised in that the user equipment includes：

Sending module, for sending random access leader sequence to base station, and indicates by the random access leader sequence coverage enhancement grade of itself；

Processing module, for the sending method according to accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of the random access leader sequence；And,

Receiving module, for the parameter information determined according to the processing module, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, receives the accidental access response message that the base station is sent；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying at least one of the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message and scrambler sequence for descrambling accidental access response message information.

32nd, user equipment as claimed in claim 31, it is characterised in that the sending module specifically for： It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；

Or,

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

It is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

33rd, the user equipment as described in claim 31 or 32, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, the processing module specifically for：

According to the sending method of accidental access response, it is n+k to determine the time of reception for receiving one accidental access response message, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

34th, the user equipment as described in any one of claim 31 ~ 33, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processing module determines the scrambler sequence for descrambling the one accidental access response message received, specifically includes：It is determined that being made for descrambling when t _ id used in the scrambler sequence calculating of the one accidental access response message received sends random access leader sequence by the user equipment with different coverage enhancement grades The numbering of identical subframe, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

35th, user equipment as claimed in claim 34, it is characterised in that the processing module determines that the scrambler sequence for descrambling the one accidental access response message received calculates t _ id used and is specially：

User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

36th, the user equipment as described in any one of claim 32 ~ 35, it is characterised in that the processing module is additionally operable to：

The first configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

The second configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, second configured information is used in the accidental access response message that instruction user equipment is received the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send.

37th, the user equipment as described in claim 31 or 32, it is characterised in that if described connect at random The sending method for entering response is to send the corresponding accidental access response of random access leader sequence that user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module specifically for：

According to the sending method of accidental access response, the time of reception for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with.

38th, the user equipment as described in claim 31 or 32, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processing module determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself, specifically includes：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself.

39th, a kind of network equipment, it is characterised in that the network equipment includes：

Transceiver, the random access leader sequence for receiving user equipment transmission；

Processor, for determining the corresponding accidental access response of random access leader sequence that each user equipment is sent, the random access leader sequence and the sending method of accidental access response sent according to the user equipment received, it is determined that sending the parameter information needed for the corresponding accidental access response of the random access leader sequence；And the triggering transceiver, according to described sender formula, accidental access response is sent to the user equipment according to the parameter information of determination；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying At least one of running time-frequency resource information, the number of repetition of accidental access response message, the delivery time of accidental access response message and the scrambler sequence of accidental access response message for scrambling transmission of accidental access response message information.

40th, the network equipment as claimed in claim 39, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processor determines to send the delivery time of one accidental access response message, specifically includes：

The random access leader sequence sent according to the user equipment, determines the coverage enhancement grade of the user equipment；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, the maximum corresponding number of repetition of coverage enhancement grade in coverage enhancement grade determined by obtaining, and it is used as the number of repetition for sending one accidental access response message.

41st, the network equipment as claimed in claim 40, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processor determines to send the delivery time of one accidental access response message, specifically includes：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the delivery time for determining one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

42nd, the network equipment as described in claim 40 or 41, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, the processor determines to send the scrambler sequence of one accidental access response according in the following manner：

It is determined that calculating the numbering of used identical subframe when subframe index t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, before Stochastic accessing corresponding with coverage enhancement grade set in advance Lead the numbering of used subframe when sequence is sent；And,

It is determined that calculating used same frequency information when frequency domain index f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for scrambling the scrambler sequence of one accidental access response message, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

43rd, the network equipment as claimed in claim 42, it is characterised in that the processor determines that the scrambler sequence for scrambling one accidental access response message calculates t _ id used and is specially：

User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

44th, the network equipment as described in any one of claim 40 ~ 43, it is characterised in that if user equipment described at least two have sent identical random access leader sequence using different random access resources, the processor is additionally operable to：

The first configured information is carried in one accidental access response message, first configured information is used to indicate the corresponding accidental access response of random access leader sequence sent in a transmitted accidental access response message using the user equipment of different random access-in resource, or

The second configured information is carried in one accidental access response message, second configured information is used to indicate the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send in a transmitted accidental access response message.

45th, the network equipment as claimed in claim 39, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processor determines to send the number of repetition needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, and specifically includes：

The random access leader sequence sent according to each user equipment, it is determined that each user sets Standby coverage enhancement grade；And, according to the corresponding relation of coverage enhancement grade and accidental access response number of repetition, it is determined that the number of repetition for the corresponding accidental access response message of random access leader sequence that each user equipment is sent.

46th, the network equipment as claimed in claim 45, it is characterised in that the processor is determined to send the parameter information needed for the corresponding accidental access response of random access leader sequence that each user equipment is sent, specifically included：

The random access leader sequence and the sending method of accidental access response sent according to the user equipment received, the random access leader sequence sent for each user equipment determines a different scrambler sequence for being used to scramble the corresponding accidental access response message of the random access leader sequence, and/or, it is that the corresponding accidental access response message of random access leader sequence that each user equipment is sent determines a different delivery time.

47th, the network equipment as claimed in claim 46, it is characterised in that the processor determines a different delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

It is determined that the delivery time for the corresponding accidental access response message of random access leader sequence that each user equipment is sent is wherein, 1^ sends different starting subframes used in random access leader sequence or different end subframes for each user equipment, and k is the sub-frame offset being pre-configured with.

48th, the network equipment as claimed in claim 46, it is characterised in that the processor determines the scrambler sequence for scrambling the corresponding accidental access response message of random access leader sequence that each user equipment is sent, and specifically includes：

It is determined that calculating the numbering of used different subframes when t _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent；And/or,

It is determined that calculating used different frequency domain information when f _ id used sends random access leader sequence for each user equipment for scrambling the scrambler sequence for the corresponding accidental access response message of random access leader sequence that each user equipment is sent. 49th, the network equipment as described in claim 40 or 45, it is characterised in that the processor determines the coverage enhancement grade of the user equipment, specifically includes：

The random access leader sequence group belonging to random access leader sequence sent according to the user equipment, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；Or,

The frequency domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

The time-domain position of the random access resource of the random access leader sequence sent according to each user equipment of carrying, it is determined that sending the coverage enhancement grade of the user equipment of the random access leader sequence, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

50th, a kind of user equipment, it is characterised in that the user equipment includes：

Transceiver, for sending random access leader sequence to base station, and indicates by the random access leader sequence coverage enhancement grade of itself；

Processor, for the sending method according to accidental access response, it is determined that receiving the parameter information needed for the corresponding accidental access response message of the random access leader sequence；And the parameter information that the triggering transceiver is determined according to processor, according to the corresponding accidental access response number of repetition of the coverage enhancement grade of itself, receive the accidental access response message that the base station is sent；

Wherein, described sender formula sends the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent including the use of an accidental access response message, or, the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent is sent respectively using different accidental access response messages；The parameter information includes：For carrying the running time-frequency resource information of accidental access response message, the time of reception of accidental access response message, Yi Jiyong In at least one of the scrambler sequence of descrambling accidental access response message information.

51st, user equipment as claimed in claim 50, it is characterised in that the processor specifically for：It is determined that random access leader sequence group corresponding with the coverage enhancement grade of itself, and a random access leader sequence is selected from identified random access leader sequence group, selected random access leader sequence is sent to the base station, wherein, the random access leader sequence included in one different coverage enhancement grade of each random access leader sequence group correspondence, random access leader sequence and different random access lead sequence group that each random access leader sequence group is pre-configured with comprising at least one is different；

Or,

It is determined that frequency domain position corresponding with the coverage enhancement grade of itself, on identified frequency domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence on frequency domain；Or,

It is determined that time-domain position corresponding with the coverage enhancement grade of itself, on identified time-domain position random access leader sequence is sent to the base station, wherein, random access resource used in random access procedure is divided into multiple resource groups, one different coverage enhancement grade of each resource group correspondence in time domain.

52nd, the user equipment as described in claim 50 or 51, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using accidental access response message, the processor specifically for：

According to the sending method of accidental access response, the time of reception for determining received one accidental access response message is n+k, wherein, n is the numbering that last being pre-configured with is used to carry the subframe of random access leader sequence, and k is the sub-frame offset being pre-configured with.

53rd, the user equipment as described in any one of claim 50 ~ 52, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent using an accidental access response message, then the processor determines the scrambler sequence for receiving one accidental access response message, specifically includes： It is determined that calculating the numbering of used identical subframe when t _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, the numbering of used subframe when random access leader sequence corresponding with coverage enhancement grade set in advance is sent；And,

It is determined that calculating used same frequency information when f _ id used sends random access leader sequence for the user equipment with different coverage enhancement grades for descrambling the scrambler sequence of the one accidental access response message received, or, used frequency domain information when random access leader sequence corresponding with coverage enhancement grade set in advance is sent.

54th, user equipment as claimed in claim 53, it is characterised in that the processor determines that the scrambler sequence for descrambling the one accidental access response message received calculates t-id used and is specially：User equipment with different coverage enhancement grades when sending random access leader sequence the numbering or identical of used identical starting subframe terminate the numbering of subframe；Or,

The numbering of random access leader sequence corresponding with coverage enhancement the grade set in advance numbering of used starting subframe or end subframe when sending.

55th, the user equipment as described in any one of claim 51 ~ 54, it is characterised in that the processor is additionally operable to：

The first configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, first configured information is used for the corresponding accidental access response of random access leader sequence sent in the accidental access response message that instruction user equipment is received using the user equipment of different random access-in resource；Or,

The second configured information is carried according in the one accidental access response message received, determine to belong to the corresponding accidental access response of random access leader sequence itself sent in one accidental access response message, wherein, second configured information is used in the accidental access response message that instruction user equipment is received the corresponding accidental access response of random access leader sequence that there is the user equipment of different coverage enhancement grades to send. 56th, the user equipment as described in claim 50 or 51, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, the processor specifically for：

According to the sending method of accidental access response, the time of reception for determining the corresponding accidental access response of random access leader sequence of itself is A+k, wherein, it is itself to send starting subframe used in random access leader sequence or terminate subframe, k is the sub-frame offset being pre-configured with.

57th, the user equipment as described in claim 50 or 51, it is characterized in that, if the sending method of the accidental access response is to send the corresponding accidental access response of random access leader sequence that the user equipment with different coverage enhancement grades is sent respectively using different accidental access response messages, then the processor determines the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself, specifically includes：

It is determined that the scrambler sequence of the corresponding accidental access response message of random access leader sequence for descrambling itself calculates the numbering of used subframe when t _ id used sends random access leader sequence for itself；And/or, it is determined that calculating used frequency domain information when f _ id used sends random access leader sequence for itself for the corresponding scrambler sequence of random access leader sequence for descrambling itself.