CN108886811A

CN108886811A - Send method, equipment and the system of Physical Random Access Channel PRACH

Info

Publication number: CN108886811A
Application number: CN201680084047.8A
Authority: CN
Inventors: 吴作敏; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2018-11-23
Anticipated expiration: 2036-03-31
Also published as: CN108886811B; WO2017166255A1

Abstract

The embodiment of the invention discloses a kind of method, apparatus and system for sending PRACH, transmission PRACH provides a kind of implementation on the carrier wave of frequency spectrum resource.This method includes：Access network equipment sends the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service, which is physical layer signaling；The access network equipment detects random access leader sequence in the first PRACH resource in the second time period.

Description

Send method, equipment and the system of Physical Random Access Channel PRACH

Technical field

The present invention relates to the communications fields, and more particularly, to method, equipment and the system for sending Physical Random Access Channel PRACH.

Background technique

In license auxiliary access long term evolution (Licensed-Assisted Access Using LTE, the LAA-LTE) system most started, downlink transfer is mainly considered.With the evolution of system, it is also required to consider uplink in LAA-LTE.Due in the scene of arranging net in LAA-LTE system exist license carrier wave and LAA carrier wave be non-co-sited scene, base station needs dispatch terminal equipment to send Physical Random Access Channel (Physical Random Access Channel, PRACH) exempting to permit Timing Advance (Timing Advance, TA) information on carrier wave to obtain terminal device.Furthermore, it is contemplated that dual link scene or independent LTE (Stand-alone Long Term Evolution, SA-LTE) scene, terminal device also needs to send PRACH and carries out random access.Therefore, terminal device needs send PRACH on exempting from licensed spectrum resource.

When LTE system is applied on the carrier wave for exempt from licensed spectrum, frame structure 3 is used.It include 10 downlink subframes in one frame of frame structure 3, downlink transfer occupies one or more continuous subframes.If future introduces uplink, uplink also accordingly occupies one or more continuous subframes.Therefore, frame structure 3 is more like time division duplex (Time Division Duplex, TDD) frame structure of flexible uplink and downlink proportion.Since equipment is in 3 transmitting data of frame structure, need to carry out listening to for channel, if defining position of the PRACH resource in a radio frames according to existing mode, in fact it could happen that the case where what is actually transmitted in the predefined resource sent for PRACH is downlink data.Therefore, it is seen then that the method in the prior art for sending PRACH is no longer desirable for exempting from the carrier wave of licensed spectrum resource.

Accordingly, it is desirable to provide a kind of method for sending PRACH on the carrier wave for exempting from licensed spectrum resource.

Summary of the invention

The application provides a kind of method for transmitting information, it is intended to transmit PRACH on the carrier wave to exempt from licensed spectrum resource and provide a kind of implementation.

In a first aspect, the application provides a kind of method for sending PRACH, this method comprises: access network equipment sends the first indication signaling in first time period, it include first in first indication signaling PRACH resource indication information, first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service, which is physical layer signaling；The access network equipment detects random access leader sequence in the first PRACH resource in the second time period.

Optionally, in the first possible implementation of the first aspect, the access network equipment sends the first indication signaling in first time period, it include: that the access network equipment sends first indication signaling on the subframe n in the first time period, n is the integer more than or equal to 0, wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions: the deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value；The starting subframe and the deviant of the subframe n are fixed value；The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.

Optionally, in the second possible implementation of the first aspect, the access network equipment sends the first indication signaling in first time period, including at least one of following manner: the access network equipment sends first indication signaling in first subframe in a downlink burst, wherein, the first time period is a downlink burst；The access network equipment sends first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；The access network equipment sends first indication signaling in the discovery reference signal DRS subframe in the first time period.

Optionally, in a third possible implementation of the first aspect, the method also includes: the access network equipment sends the second indication signaling to first terminal equipment, second indication signaling is terminal device dedicated signaling, the first terminal equipment is one in the terminal device under the cell of the access network equipment service, second indication signaling includes the 2nd PRACH resource indication information, wherein, it include at least one of following information: the sequence identifier of the random access leader sequence carried in the 2nd PRACH resource in the 2nd PRACH resource indication information；The format of the random access leader sequence carried in 2nd PRACH resource；The time-domain position information of 2nd PRACH resource；The frequency domain position information of 2nd PRACH resource, the 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment.

Second aspect, the application provides a kind of method for sending PRACH, this method comprises: terminal is set It is standby that the first indication signaling is received in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling；The terminal device sends random access leader sequence in the first PRACH resource in the second time period.

Optionally, in the first possible implementation of the second aspect, the terminal device receives the first indication signaling in first time period, it include: that the terminal device receives first indication signaling on the subframe n in the first time period, n is the integer more than or equal to 0, wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions: the deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value；The starting subframe and the deviant of the subframe n are fixed value；The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.

Optionally, in a second possible implementation of the second aspect, the terminal device receives the first indication signaling in first time period, including at least one of following manner: the terminal device receives first indication signaling in first subframe in a downlink burst, wherein, the first time period is a downlink burst；The terminal device receives first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；The terminal device receives first indication signaling in the discovery reference signal DRS subframe in the first time period.

The third aspect, the application provides a kind of method for sending PRACH, this method comprises: first terminal equipment receives the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling.

Optionally, in the first possible implementation of the third aspect, the first terminal equipment receives the first indication signaling in first time period, it include: that the first terminal equipment receives first indication signaling on the subframe n in the first time period, n is the integer more than or equal to 0, wherein Starting subframe in the subframe n and the second time period meets at least one of the following conditions: the deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value；The starting subframe and the deviant of the subframe n are fixed value；The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.

Optionally, in the second possible implementation of the third aspect, the first terminal equipment receives the first indication signaling in first time period, including at least one of following manner: the first terminal equipment receives first indication signaling in first subframe in a downlink burst, wherein, the first time period is a downlink burst；The first terminal equipment receives first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；The first terminal equipment receives first indication signaling in the discovery reference signal DRS subframe in the first time period.

Optionally, in the third possible implementation of the third aspect, the method also includes: the first terminal equipment receives the second indication signaling that the access network equipment is sent, second indication signaling is terminal device dedicated signaling, one in terminal device under the cell of access network equipment service described in the first terminal equipment, second indication signaling includes the 2nd PRACH resource indication information, wherein, it include at least one of following information: the sequence identifier of the random access leader sequence carried in the 2nd PRACH resource in the 2nd PRACH resource indication information；The format of the random access leader sequence carried in 2nd PRACH resource；The time-domain position information of 2nd PRACH resource；The frequency domain position information of 2nd PRACH resource, wherein the 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment；The first terminal equipment sends third random access leader sequence in the 2nd PRACH resource.

Fourth aspect, the application provide a kind of communication system, which includes the access network equipment in first aspect, the terminal device in second aspect.Optionally, which further includes the first terminal equipment in the third aspect.

In some implementations, the time-domain position information includes at least one of following situations: the information that the first PRACH resource whether there is in the second time period；The location information of first PRACH resource subframe where in the second time period；The location information of first PRACH resource symbol where in the second time period.

In some implementations, the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.

In some implementations, the frequency domain position of the first PRACH resource occupation includes at least one of following situations:

System bandwidth includes 100 RB, and by 100 RB from 1 number to 100, the number of the resource block RB of the first PRACH resource occupation is 10,11,12,13,14,15,86,87,88,89,90,91；

System bandwidth includes 50 RB, and by 50 RB from 1 number to 50, the number of the resource block RB of the first PRACH resource occupation is 5,6,7,8,9,10,41,42,43,44,45,46.

In some implementations, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

In some implementations, further include in first indication signaling in following information at least one of: the format of the random access leader sequence carried in the first PRACH resource；The frequency domain position of the first PRACH resource；Zero correlation block configuration parameter；The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；Random access radio network temporary identifier RA-RNTI.

In some implementations, the first PRACH resource includes first resource block RB and the 2nd RB, wherein the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

Fourth aspect, the application provide a kind of access network equipment for transmitting PRACH, the method in any possible implementation for executing first aspect or first aspect.Specifically, which includes the unit for executing the method in any possible implementation of first aspect or first aspect.

5th aspect, the application provide a kind of terminal device for transmitting PRACH, the method in any possible implementation for executing second aspect or second aspect.Specifically, which includes the unit for executing the method in any possible implementation of second aspect or second aspect.

6th aspect, the application provides a kind of terminal device for transmitting PRACH, for executing third party Method in any possible implementation of face or the third aspect.Specifically, which includes the unit for executing the method in any possible implementation of the third aspect or the third aspect.

7th aspect, the application provide a kind of access network equipment for transmitting PRACH, which includes: bus system, processor transceiver and memory.Wherein, transceiver, memory and processor are connected by bus system, memory is for storing instruction, processor is used to execute the instruction of memory storage, to control transceiver receiving and transmitting signal, and when processor executes the instruction of memory storage, so that processor executes the method in any possible implementation of first aspect or first aspect.

Eighth aspect, the application provide a kind of terminal device for transmitting PRACH, which includes: bus system, processor transceiver and memory.Wherein, transceiver, memory and processor are connected by bus system, memory is for storing instruction, processor is used to execute the instruction of memory storage, to control transceiver receiving and transmitting signal, and when processor executes the instruction of memory storage, so that processor executes the method in any possible implementation of second aspect or second aspect.

9th aspect, the application provide a kind of terminal device for transmitting PRACH, which includes: bus system, processor transceiver and memory.Wherein, transceiver, memory and processor are connected by bus system, memory is for storing instruction, processor is used to execute the instruction of memory storage, to control transceiver receiving and transmitting signal, and when processor executes the instruction of memory storage, so that processor executes the method in any possible implementation of the third aspect or the third aspect.

Tenth aspect, the application provides a kind of computer-readable medium, and for storing computer program, which includes the instruction for executing the method in any possible implementation of first aspect or first aspect.

Tenth on the one hand, and the application provides a kind of computer-readable medium, and for storing computer program, which includes the instruction for executing the method in any possible implementation of second aspect or second aspect.

12nd aspect, the application provides a kind of computer-readable medium, and for storing computer program, which includes the instruction for executing the method in any possible implementation of the third aspect or the third aspect.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, creation is not being paid Property labour under the premise of, be also possible to obtain other drawings based on these drawings.

Fig. 1 is the application scenarios for being applicable in the method for transmission PRACH of the embodiment of the present invention.

Fig. 2 a shows the schematic diagram of a downlink burst or a uplink burst.

Fig. 2 b shows a kind of mode of the frequency domain resource of a PRACH resource occupation.

Fig. 2 c shows the another way of the frequency domain resource of a PRACH resource occupation

Fig. 2 d shows another mode of the frequency domain resource of a PRACH resource occupation.

Fig. 3 is the schematic interaction figure of the method according to an embodiment of the present invention for sending PRACH.

Fig. 4 a shows the schematic diagram of the relationship of first time period and second time period.

Fig. 4 b shows the mapping schematic diagram of the format 0 and format 4 of random access leader sequence in a normal cyclic prefix subframe.

Fig. 5 is the schematic block diagram of access network equipment according to an embodiment of the invention.

Fig. 6 is the schematic block diagram of terminal device according to another embodiment of the present invention.

Fig. 7 is the schematic block diagram of terminal device according to yet another embodiment of the invention.

Fig. 8 is the schematic diagram of access network equipment according to an embodiment of the invention.

Fig. 9 is the schematic diagram of terminal device according to another embodiment of the present invention.

Figure 10 is the schematic diagram of terminal device according to yet another embodiment of the invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.

Present invention combination terminal device describes each embodiment, terminal device can be referred to as user equipment (User Equipment, UE), terminal (Terminal), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal) etc..In embodiments of the present invention, terminal device can be communicated through wireless access network (Radio Access Network, RAN) with one or more core nets.For example, terminal device can be mobile phone (or being " honeycomb " phone), computer with mobile terminal etc..For example, terminal device can also be portable, pocket, hand-held, built-in computer or terminal device in vehicle-mounted mobile device and future 5G network, they exchange voice and/or data with wireless access network.

In addition, present invention combination access network equipment describes each embodiment, access network equipment be can be LTE system and its evolution system, evolved base station (Evolutional Node B especially in LAA-LTE system or SA-LTE system, referred to as can be eNB or e-NodeB), macro base station, micro-base station (also referred to as " small base station "), femto base station, access website (Access Point, AP) or transmit website (Transmission Point, TP) etc..

It should be understood that data information of physical channel (physical channel) carrying from high-rise (higher layers).Physical channel can be physical down channel or physical uplink channel, wherein, physical down channel includes Physical Downlink Shared Channel (Physical Downlink Shared CHannel, PDSCH), Physical Downlink Control Channel (Physical Downlink Control CHannel, PDCCH), Physical Control Format Indicator Channel (Physical Control Format Indicator CHannel, PCFICH), physical mixing retransmission indicating chanel (Physical Hybrid ARQ Indicator CHannel, PHICH), enhance physical down control Channel (Enhanced-Physical Downlink Control CHannel, EPDCCH), Physical Broadcast Channel (Physical Broadcast CHannel, PBCH), Physical Multicast Channel (Physical Multicast CHannel, PMCH) etc..Physical uplink channel includes Physical Uplink Shared Channel (Physical Uplink Shared CHannel, PUSCH), Physical Uplink Control Channel (Physical Uplink Control CHannel, PUCCH), Physical Random Access Channel (Physical Random Access CHannel, PRACH) etc..Or the channel that the function that newly introduces in standard is identical but title is different.It is also possible to the combination with upper signal channel.

It should also be understood that in embodiments of the present invention, number " first ", " second " are just to distinguishing different objects, such as in order to distinguish different PRACH resources or different signalings, should not constitute any restriction to the protection scope of the embodiment of the present invention.

When the LAA-LTE system on the carrier wave for exempting from licensed spectrum supports uplink, accordingly, terminal device should send Physical Random Access Channel (Physical Random Access Channel on the carrier wave for exempting from licensed spectrum, PRACH) exempting to permit Timing Advance (Timing Advance, TA) information on carrier wave to obtain terminal device.In addition, dual link scene may be supported on carrier wave in view of exempting from licensed spectrum, or independent LTE (Stand-alone Long Term Evolution, SA-LTE) scene in system in future evolution, terminal device also need to send PRACH and carry out random access.Therefore, terminal device needs send PRACH on exempting from licensed spectrum resource.

The frame structure 3 for exempting from licensed spectrum resource transmission is supported to be more like the Time Division Duplex TDD frame structure of flexible uplink and downlink proportion.Since equipment is in 3 transmitting data of frame structure, need to carry out listening to for channel, if defining position of the PRACH resource in a radio frames according to existing mode, in fact it could happen that the case where what is actually transmitted in the predefined resource sent for PRACH is downlink data.As it can be seen that The method in the prior art for sending PRACH is no longer desirable for exempting from the carrier wave of licensed spectrum resource.

In order to make it easy to understand, Fig. 1 is combined first, it is simple to introduce the scene for being suitable for the method for transmission PRACH of the embodiment of the present invention.

Fig. 1 shows the application scenarios of the method for transmission information according to an embodiment of the present invention.As shown in Figure 1, including cell base station 101 and cell base station 101 neighbouring cell base station 102 and user equipment 103 in scene.Wherein, user equipment 103 is in the coverage area less than base station 101 and is communicated with cell base station 101.Cell base station 101 and user equipment 103 are the communication equipment for supporting to be communicated on exempting from licensed spectrum resource.The frequency range that cell base station 102 is supported can be identical as cell base station 101, and cell base station 102 can be the communication equipment with 101 same type of cell base station, be also possible to and the different types of communication equipment of cell base station 101.Such as, cell base station 101 can be the base station of LTE system, accordingly, user equipment 103 is the user equipment of LTE system, cell base station 102 can be the base station of LTE system, or the wireless router, wireless repeater, user equipment of Wireless Fidelity (Wireless Fidelity, Wi-Fi) system.In specific communication process, user equipment 103 is when the channel by exempting from licensed spectrum transmits signal to cell base station 102, user equipment 103, which needs to obtain, exempts from the channel right to use of licensed spectrum, and follows and exempt from resource in licensed spectrum and use the limitation requirement to transmission power and bandwidth.

The method of the PRACH transmission of the embodiment of the present invention is described in detail with reference to the accompanying drawing.

Firstly, being illustrated to a downlink burst or a uplink burst.Downlink burst refers to that access network equipment obtains the subframe transmitted after the channel right to use on the carrier wave for exempting from licensed spectrum for downlink signal.

Fig. 2 a shows the schematic diagram of a downlink burst or a uplink burst.As shown in Figure 2 a, a downlink burst includes one or more subframes, and when the number for the subframe that a downlink burst includes is greater than 1, the subframe for including in a downlink burst is continuous.

Optionally, first subframe in a downlink burst is descender subframe.

Optionally, the last one subframe in a downlink burst is descender subframe.Wherein, descender subframe refers to that at least one symbol is not used in the downlink subframe of downlink transfer.

Uplink burst refer to terminal device obtain exempt from the channel right to use on the carrier wave of licensed spectrum after be used for the subframes of uplink signal transmissions.As shown in Figure 2 a, a uplink burst includes one or more subframes, and when the number for the subframe that a uplink burst includes is greater than 1, the subframe for including in a uplink burst is continuous.

Optionally, first subframe in a uplink burst is ascender subframe.

Optionally, the last one subframe in a uplink burst is ascender subframe.Wherein, ascender subframe refers to that at least one symbol is not used in the sub-frame of uplink of uplink.

Optionally, in the case where including a subframe in a uplink burst, which can be part subframe.

Under normal conditions, as shown in Figure 2 a, once uplink burst after a downlink burst.There is regular hour resource to convert between downlink burst and a uplink burst for uplink and downlink.

It should be understood that, if existing downlink transfer in a subframe, also there is uplink, wherein, some resource is converted for uplink and downlink in the subframe, so, the downlink transfer part of the subframe may be considered a descender subframe, and the uplink part of the subframe may be considered an ascender subframe.That is, both it is considered that the subframe is the last one subframe of a downlink burst, it is also assumed that the subframe is first subframe of a uplink burst.

One PRACH resource refers to the resource for the time domain and frequency domain that terminal device occupies in a random access leader sequence transmission process.

In the prior art, a PRACH resource occupies continuous 6 resource blocks (Resource Block, RB) on frequency domain.It should be understood that certain countries define communication equipment (for example, terminal device) when licensed spectrum resource is exempted from use, the ratio that the signal of transmission occupies system bandwidth needs to reach certain threshold value (for example, 80%).In order to meet this requirement, optionally, a PRACH resource includes the first RB and the 2nd RB, wherein the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.For example, the difference between the index value of the first RB and the index value of the 2nd RB should be greater than or be equal to 88 for the system of 20M bandwidth.

Fig. 2 b shows a kind of mode of the frequency domain resource of a PRACH resource occupation.As shown in Figure 2 b, a PRACH resource includes two basic resource units, wherein a basic resource unit occupies continuous 6 RB on frequency domain.First RB and the 2nd RB is respectively first RB in two basic resource units, and the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

Fig. 2 c shows the another way of the frequency domain resource of a PRACH resource occupation.As shown in Figure 2 c, system bandwidth is divided into N number of frequency domain unit, wherein each frequency domain unit includes M continuous RB.One PRACH resource includes N number of basic resource unit, wherein a basic resource unit occupies 1 RB on frequency domain.N number of RB is located in N number of frequency domain unit, and the occupied RB of PRACH is identical as the deviant of first RB in the frequency domain unit in each frequency domain unit.First RB and the 2nd RB is respectively the RB in first frequency domain unit and n-th frequency domain unit, and the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

It is understood that the transmission of physical uplink channel requires meet the needs of bandwidth occupancy.In addition to improving resource utilization, multiple physical uplink channels multiplexing transmission in the same subframe should be able to be allowed.For example, PRACH, PUSCH or PUCCH are transmitted in the same subframe.One possible multiplexing method is that system bandwidth is divided into N number of frequency domain unit, wherein each frequency domain unit includes M continuous RB.RB identical with the deviant of first RB in the frequency domain unit in each frequency domain unit is formed into a group, i.e. system resource includes M group, wherein each group includes N number of RB.Access network equipment carries out resource allocation as unit of group, and a PRACH or PUSCH or PUCCH occupies at least one group, to realize that different physical uplink channels is multiplexed in the same subframe.

For example, it is assumed that system bandwidth is 20M, including 100 RB.100 RB are divided into 10 frequency domain units, wherein each frequency domain unit includes 10 continuous RB.RB identical with the deviant of first RB in the frequency domain unit in each frequency domain unit is formed into a group, i.e. system resource includes 10 groups, wherein each group includes 10 RB.It is understood that the mode of the frequency domain resource of a PRACH resource occupation shown in Fig. 2 c may be implemented PRACH or PUSCH or PUCCH and is multiplexed in the same subframe.

It, can be using mode shown in Fig. 2 d in order to realize that PRACH and PUSCH or PUCCH are multiplexed in the same subframe for the mode of the frequency domain resource of a PRACH resource occupation shown in Fig. 2 b.10 frequency domain units are equally divided into 20M system bandwidth, each frequency domain unit includes 10 continuous RB, RB identical with the deviant of first RB in the frequency domain unit is a group in each frequency domain unit, and access network equipment is illustrated for carrying out resource allocation as unit of group.One PRACH resource includes two basic resource units, wherein a basic resource unit occupies continuous 6 RB, the 1st, 2,3,4,5 RB of specially the 10th of frequency domain unit #1 the RB and frequency domain unit #2 on frequency domain.Another basic resource unit also occupies continuous 6 RB, the 1st RB of the specially the 6th of frequency domain unit #9 the, 7,8,9,10 RB and frequency domain unit #10 on frequency domain.Access network equipment still can distribute the 2nd, 3,4,5,6,7,8, the 9 group of transmission for PUSCH or PUCCH, wherein, for not including the RB in frequency domain unit #2 in the 2nd, 3,4,5 group of resource, for not including the RB in frequency domain unit #9 in the 6th, 7,8,9 group of resource, i.e., the RB number for including in these groups is 9.For a new group can not formed for the RB of PRACH transmission in the 1st group and the 10th group, includes 16 RB in the new group and still meet the needs of bandwidth occupancy.

It should be noted that the resource allocation of uplink PUSCH usually requires that RB of distribution number meets 2,3,5 multiple demand in order to realize DFT, every group of RB number still meets this demand in the above-mentioned new method of salary distribution.

Similarly, 10M system bandwidth includes 50 RB, and 50 RB are numbered from 1 to 50.50 RB can be divided into 5 frequency domain units, and each frequency domain unit includes 5 continuous RB, and RB identical with the deviant of first RB in the frequency domain unit is a group in each frequency domain unit, and access network equipment carries out resource allocation as unit of group.Under this configuration, if PRACH and PUSCH or PUCCH multiplexing, the number for the RB that PRACH is occupied is 5,6,7,8,9,10,41,42,43,44,45,46.

Below in conjunction with Fig. 3, the method according to an embodiment of the present invention for sending PRACH is described in detail.

Fig. 3 shows the schematic interaction figure 100 of the method according to an embodiment of the present invention for sending PRACH.As shown in figure 3, this method 100 includes:

101, access network equipment sends the first indication signaling in first time period.

Wherein, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, and the first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service.

Optionally, first indication signaling is physical layer signaling perhaps wireless heterogeneous networks (Radio Resource Control RRC) signaling or media access control (Media Access Control, MAC) layer signaling.

Preferably, first indication signaling is physical layer signaling.

Optionally, first time period is a downlink burst.

Optionally, second time period is a uplink burst.

Fig. 4 a gives the schematic diagram of the relationship of first time period and second time period.As shown in fig. 4 a, first time period is a downlink burst, includes 5 downlink subframes in first time period, subframe number is respectively 1,2,3,4,5.Second time period is a uplink burst after first time period, includes 4 sub-frame of uplink in second time period, subframe number is respectively m, m+1, m+2, m+3.It include the time-domain resource for being not used in transmission between first time period and second time period.

It should be noted that second time period can be recent uplink burst after the corresponding downlink burst of first time period.It also may include one or many uplink bursts on time resource between second time period and first time period.

Optionally, the first PRACH resource occupies continuous 6 RB on frequency domain.

Optionally, the first PRACH resource include the first RB and the 2nd RB, wherein the first RB with Frequency domain interval between 2nd RB is greater than or equal to default frequency domain interval.

Optionally, the frequency domain resource of the first PRACH resource occupation includes two basic resource units, wherein each basic resource unit occupies continuous 6 RB on frequency domain.Still optionally further, the first RB and the 2nd RB is respectively first RB in two basic resource units, and the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

Optionally, the frequency domain resource of the first PRACH resource occupation is fixed in a subframe.For example, 100 RB that frequency domain includes are occupied 12 RB from 1 number to 100, the first PRACH resources on frequency domain, and its corresponding number of RB occupied is 10,11,12,13,14,15,86,87,88,89,90,91 in the system that bandwidth is 20M.In another example 50 RB that frequency domain includes are occupied 12 RB from 1 number to 50, the first PRACH resources on frequency domain, and its corresponding number of RB occupied is 5,6,7,8,9,10,41,42,43,44,45,46 in the system that bandwidth is 10M.Still optionally further, once user equipment receives the time-domain position information of the first PRACH resource, so user equipment can determine the time domain and frequency domain position of the first PRACH resource, and the RB of PRACH resource occupation should be avoided when carrying out the resource impact of PUSCH or PUCCH or other uplink signals.

Optionally, the frequency domain resource of the first PRACH resource occupation includes N number of RB, wherein the frequency domain interval in N number of RB between the adjacent RB of any two is equal.

Still optionally further, the first RB and the 2nd RB is respectively first RB and the last one RB that the first PRACH resource occupies on frequency domain, and the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

Optionally, first indication signaling is sent on subframe n of the access network equipment in first time period, n is the integer more than or equal to 0.For example, the value of n is 0,5,20,100 etc..Optionally, the value range of n is fixed, wherein n value numbering cycle.For example, n is the integer more than or equal to 0 and less than or equal to 9, wherein the latter subframe of subframe 9 is subframe 0.

Optionally, the deviant of the starting subframe in second time period and the last one subframe in the downlink burst where subframe n is fixed value.

Wherein, first time period is the downlink burst, which is the integer more than or equal to 0.It is illustrated by taking such as Fig. 4 a as an example, assuming that n=2, fixed value 1, then subframe n is downlink subframe #2, the offset of the last one downlink subframe #5 of starting subframe and first time period in second time period is 1 subframe, i.e., the starting subframe #m in second time period is subframe #6.It should be noted that first subframe that deviant is 0 the last one subframe for referring specifically to first time period and second time period is same First subframe of subframe, i.e. the last one subframe of first time period and second time period is part subframe.

Optionally, the starting subframe in second time period and the deviant of subframe n are fixed value.

Optionally, the starting subframe in second time period is first ascender subframe after subframe n+k, which is the subframe that at least one symbol is not used in uplink, and k is the integer more than or equal to 1.

Optionally, the starting subframe in second time period is first uplink complete subframe after subframe n+k, which is all used for the sub-frame of uplink of uplink for whole symbols in a subframe, and k is the integer more than or equal to 1.

Optionally, the first indication signaling is sent in first subframe of the access network equipment in a downlink burst, wherein first time period is a downlink burst.

Preferably, the first indication signaling is sent in first complete subframe of the access network equipment in a downlink burst.

Optionally, access network equipment sends the first indication signaling in the last one subframe in a downlink burst, wherein first time period is a downlink burst.

Optionally, the first indication signaling is sent in discovery reference signal DRS subframe of the access network equipment in first time period.

Optionally, time-domain position information of the first PRACH resource in second time period includes at least one of following situations:

The information that first PRACH resource whether there is in second time period；

The location information of first PRACH resource subframe where in second time period；

The location information of first PRACH resource symbol where in second time period.

It should be noted that; the format 0 of random access leader sequence generally takes up 1 subframe; wherein the effective information part of random access leader sequence occupies 800us; in view of the redundancy of cyclic prefix or guard time under the format; the symbol initial time of the corresponding PRACH of format 0 can be the symbol #0 of a normal cyclic prefix subframe; or the initial time of symbol #1 or symbol #2；Alternatively, the symbol initial time of the corresponding PRACH of format 0 can be the symbol #0 of a long loop prefix subframe or the initial time of symbol #1 or symbol #2.The format 4 of random access leader sequence occupies about 2 symbols, is more often available in first ascender subframe in a uplink burst.

Fig. 4 b gives the mapping schematic diagram of the format 0 and format 4 of random access leader sequence in a normal cyclic prefix subframe.

When time-domain position information of the first PRACH resource in second time period is the location information that symbol indicates, optionally, the format information of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction of the first PRACH resource in second time period.

Such as, if the number of the symbol in a subframe of the first PRACH resource where in second time period is the positive integer more than or equal to 3, the format of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction is format 4 or the format of other occupancy less time resources similar with format 4.If the number of first symbol of the first PRACH resource where in second time period is the integer more than or equal to 0 and less than 3, the format of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction is the format of format 0 or other occupancy about 1ms time resources similar with format 0.

Optionally, it include configuration index of the first PRACH resource in the second time period in first PRACH resource indication information, wherein, time-domain position information of the first PRACH resource in second time period passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

It specifically, may include following manner.

It should be noted that here, the generation parameter of root sequence is used to generate the root sequence of random access leader sequence.

Further, random access leader sequence can be generated according to root sequence and zero correlation block configuration parameter.

PRACH resource instruction form on the predefined carrier wave for exempting from licensed spectrum resource of access network equipment, the PRACH resource instruction form are used to indicate the configuration of the PRACH resource in one or more subframes of uplink.Wherein, it include the time-domain resource (the opposite subframe numbers in second time period) of PRACH configuration index and PRACH in PRACH resource instruction form, it further include at least one in the Format Series Lines of the random access leader sequence carried in PRACH resource, the frequency domain resource of PRACH and wireless access radio network temporary identifier (Radio Access Radio Network Tempory Identity, RA-RNTI) in PRACH resource instruction form.

Table 1 shows a kind of possible form (for ease of description, hereinafter referred to as indicating mode 1) of PRACH resource instruction form.

Table 1

PRACH configuration instruction	Format Series Lines	Opposite subframe numbers	The instruction of PRACH group
0	4	0	Arbitrarily
1	4	1	Arbitrarily
2	4	0,1	Arbitrarily
3	0	1	0
4	0	1	0,1
5	0	1,2	(0；0)
6	0	1,2	(0；1)
7	0	1,2	(1；0)
8	Retain	Retain	Retain

It should be noted that the opposite subframe numbers 0 in table 1 indicate first subframe in second time period.Wherein, which can be an ascender subframe or a uplink complete subframe.

It should be noted that due to exempt from licensed spectrum carrier wave on cell coverage area be usually more than 1.5 kilometers, it is believed that exempt from only to need support random access leader sequence format 0 or format 4 on the carrier wave of licensed spectrum.

It should be noted that 1 PRACH group in table 1 indicates that access network equipment configures 1 PRACH resource in a subframe for cell, cell can be configured multiple PRACH groups, wherein the frequency domain position of each PRACH resource group is preconfigured.

It should also be noted that, (x in the instruction of PRACH group；Y) and with respect to subframe numbers joint instructions PRACH resource.For example, by PRACH configuration index 6 for, indicate the cell PRACH resource distribution be 1 with respect to subframe numbers in second time period subframe on the 0th group of PRACH resource and with respect to subframe numbers be 2 subframe on the 1st group of PRACH resource.

It should also be noted that, PRACH configuration index 8 may be used to indicate does not have PRACH resource in second time period.

From above-mentioned table 1 it is found that PRACH is only configured on preceding 3 sub-frame of uplink in a uplink burst, channel can be accessed quickly.

Optionally, the first indication signaling is sent in first subframe of the access network equipment in a downlink burst, wherein include the first PRACH resource indication information, the first PRACH in the first indication signaling It include configuration index of the first PRACH resource in second time period in resource indication information.

Table 2 shows the alternatively possible form (for ease of description, hereinafter referred to as indicating mode 2) of PRACH resource instruction form.

Table 2

PRACH configuration index	Format Series Lines	Opposite subframe numbers	PRACH group index
0	4	n-1	Arbitrarily
1	4	n	Arbitrarily
2	4	n-1,n	Arbitrarily
3	0	n	0
4	0	n	0,1
5	0	n-1,n	(0；0)
6	0	n-1,n	(0；1)
7	0	n-1,n	(1；0)
8	Retain	Retain	Retain

It should be noted that the opposite subframe numbers n in table 2 indicates the last one subframe in second time period.Wherein, the last one subframe in second time period can be an ascender subframe or a uplink complete subframe.

It should also be noted that, (x in the instruction of PRACH group；Y) and with respect to subframe numbers joint instructions PRACH resource.For example, indicating that the PRACH resource distribution of the cell is the 0th group of PRACH resource in second time period in penultimate subframe and the 1st group of PRACH resource in the last one subframe by taking PRACH configuration index 6 as an example.

From above-mentioned table 2 it is found that PRACH is only configured on rear 2 sub-frame of uplink in a uplink burst, therefore, terminal device can have the longer processing time.Therefore, optionally, access network equipment sends the first indication signaling in the last one subframe in a downlink burst, wherein, include the first PRACH resource indication information in first indication signaling, includes configuration index of the first PRACH resource in second time period in the first PRACH resource indication information.

Optionally, as one embodiment, access network equipment determines the frequency domain position in PRACH including the first PRACH resource.

In the indicating mode of the embodiment of the present invention, access network equipment is by becheduleding for PRACH resource instruction form, it is possible to reduce dynamic signaling expense.

Optionally, it include the first PRACH resource indication information in first indication signaling, first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, further include in the first indication signaling in the format of random access leader sequence carried in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI at least one of.

In the indicating mode of the embodiment of the present invention, access network equipment indicates the time domain or frequency domain position of the first PRACH resource every time, can increase the flexibility of scheduling.

102, terminal device receives the first indication signaling in first time period.

It wherein, include the first PRACH resource indication information in first indication signaling；

The first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period；

The first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service.

Optionally, first indication signaling is physical layer signaling.

Optionally, first time period is a downlink burst.

Optionally, second time period is a uplink burst.

Optionally, the first indication signaling is received on subframe n of the terminal device in first time period, n is the integer more than or equal to 0.For example, the value of n is 0 to 20.Still optionally further, n is the integer more than or equal to 0 and less than or equal to 9.

Optionally, the deviant of the starting subframe in second time period and the last one subframe in the downlink burst where subframe n is fixed value；

Optionally, the starting subframe in second time period and the deviant of subframe n are fixed value；

Optionally, the starting subframe in second time period is first ascender subframe after subframe n+k, which is the subframe that at least one symbol is not used in uplink, k >=1；

Optionally, the starting subframe in second time period is first uplink complete subframe after subframe n+k, which is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.

Optionally, the first indication signaling is received in first subframe of the terminal device in a downlink burst, wherein first time period is a downlink burst；

Optionally, terminal device receives the first indication signaling in the last one subframe in a downlink burst, wherein first time period is a downlink burst；

Optionally, the first indication signaling is received in discovery reference signal DRS subframe of the terminal device in first time period.

Optionally, the format information of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction of the first PRACH resource in second time period.

Such as, for example, if the number of first symbol of the first PRACH resource where in second time period is the positive integer more than or equal to 3, the format of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction is format 4 or the format of other occupancy less time resources similar with format 4.If the number of first symbol of the first PRACH resource where in second time period is the integer more than or equal to 0 and less than 3, the format of the random access leader sequence carried in the first PRACH resource of time-domain position information implicit instruction is the format of format 0 or other occupancy about 1ms time resources similar with format 0.Correspondingly, terminal device determines the corresponding format of random access leader sequence in the first PRACH resource according to the time-domain position information.

Specifically, the configuration index instruction may be used to indicate the parameter being pre-configured in table.Tables 1 and 2 has given two kinds of possible forms.

It optionally, include the first PRACH resource indication information, the first PRACH in the first indication signaling Resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, further include in the first indication signaling in the format of random access leader sequence carried in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI at least one of.

103, random access leader sequence is sent in the first PRACH resource of the terminal device in second time period.

Optionally, terminal device selects any one candidate random access leader sequence, and sends in the first PRACH resource.Wherein, candidate random access leader sequence is available random access leader sequence in the cell of access network equipment service.

Optionally, terminal device selects corresponding random access leader sequence according to the instruction of the signaling of access network equipment, and sends in the first PRACH resource.

Optionally, terminal device is according to information such as the sizes of the obtained path loss of measurement or data volume to be sent, a random access leader sequence group is selected from multiple random access leader sequence groups that access network equipment configures, and selects a random access leader sequence to send in the first PRACH resource from the random access leader sequence group.

Optionally, in random access procedure, which time transmitting random access preamble sequence terminal device determination is currently, then it is configured in multiple random access leader sequence groups from access network equipment and selects corresponding random access leader sequence group, and select a random access leader sequence to send in the first PRACH resource from the random access leader sequence group.

104, random access leader sequence is detected in the first PRACH resource of the access network equipment in the second time period.

Optionally, the method for random access leader sequence being detected in the first PRACH resource of the access network equipment in second time period, which includes: access network equipment, to be carried out coherent detection with the signal received for the candidate random access leader sequence under cell that the access network equipment services and judges peak value.If peak value is more than predetermined threshold value, access network equipment judges the random access leader sequence that the corresponding random access leader sequence of the peak value sends for terminal device.

Still optionally further, the method also includes: access network equipments sends random sequence access response to terminal device.

Optionally, the sequence identifier for the random access leader sequence that the terminal device is sent is that access net is set For what is indicated by signaling.Access network equipment detects random access leader sequence method in the first PRACH resource in second time period includes: that the random access leader sequence for being sent to terminal device and the signal received are carried out coherent detection and judge peak value by access network equipment.If peak value is more than predetermined threshold value, the random access leader sequence that access network equipment judges that the terminal device is sent is received successfully.

Still optionally further, the method also includes: access network equipments sends random sequence access response to terminal device, with the success of instruction terminal equipment random access.

Optionally, as one embodiment, access network equipment based on a certain particular terminal device of the scheduling into cell (i.e., the first terminal equipment in the embodiment of the present invention can be corresponded to) send indication signaling (i.e., the second indication signaling in the embodiment of the present invention can be corresponded to), to indicate PRACH resource indicated in indication signaling that the particular terminal device is sent based on access network equipment (i.e., the 2nd PRACH resource sent out in the embodiment of the present invention can be corresponded to) carry out random access in the case where, the method of the transmission PRACH of the embodiment of the present invention, it can also be including step 105 shown in Fig. 3 to step 108.

105, access network equipment sends the second indication signaling to first terminal equipment.

The first terminal equipment is one in the terminal device under the cell of the access network equipment service, and second indication signaling is terminal device dedicated signaling；Second indication signaling includes the 2nd PRACH resource indication information, wherein includes at least one of following information in the 2nd PRACH resource indication information:

The sequence identifier of the random access leader sequence carried in 2nd PRACH resource；

The format of the random access leader sequence carried in 2nd PRACH resource；

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

The 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment.

It should be noted that herein, which can terminal device #B in corresponding diagram 3.In other words, in this embodiment, terminal device is a specific terminal device (that is, first terminal equipment) under the cell of access network equipment service.

106, first terminal equipment receives the second indication signaling that access network equipment is sent.

First terminal equipment determines at least one of information such as the 2nd PRACH resource, the sequence identifier of the random access leader sequence carried in the 2nd PRACH resource, the format of random access leader sequence that carries in the 2nd PRACH resource according to the second indication signaling.

107, first terminal equipment sends random access leader sequence in the 2nd PRACH resource.

Wherein, the 2nd PRACH resource is different from the first PRACH resource.

Optionally, first terminal equipment selects corresponding random access leader sequence according to the instruction of the signaling of access network equipment, and sends in the 2nd PRACH resource.

108, access network equipment detects random access leader sequence in the 2nd PRACH resource.

Optionally, the random access leader sequence for being sent to first terminal equipment and the signal received are carried out coherent detection and judge peak value by access network equipment.If peak value is more than predetermined threshold value, the random access leader sequence that access network equipment judges that first terminal equipment is sent is received successfully.

Still optionally further, the method also includes: access network equipments sends random sequence access response to first terminal equipment, with the success of instruction terminal equipment random access.

It should be understood that in this embodiment, the scheduling initiating random access procedure of terminal device (that is, first terminal equipment in the corresponding embodiment of the present invention) based on access network equipment.Therefore, after terminal device receives the second indication signaling, according to the 2nd PRACH resource indication information carried in the second indication signaling, the specified PRACH resource (that is, the 2nd PRACH resource in the corresponding embodiment of the present invention) for carrying out random access of access network equipment is determined.Next, terminal device is in the 2nd PRACH resource to access network equipment initiating random access procedure.

Above in association with Fig. 1 to Fig. 4 b, the method according to an embodiment of the present invention for sending PRACH is described in detail.Below in conjunction with Fig. 5 to Fig. 7, illustrate the access network equipment and terminal device of transmission PRACH according to an embodiment of the present invention.

Fig. 5 shows the schematic block diagram of access network equipment according to an embodiment of the present invention.As shown, the access network equipment 300 includes transmission unit and processing unit, wherein

Transmission unit 310, for sending the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service, and first indication signaling is physical layer signaling

Processing unit 320 detects random access leader sequence in the first PRACH resource in the second time period.

Optionally, as one embodiment, the transmission unit is specifically used for:

First indication signaling is sent on the subframe n in the first time period, n is the integer more than or equal to 0, wherein the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value；

The starting subframe and the deviant of the subframe n are fixed value；

The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；

The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.

Optionally, as one embodiment, the transmission unit sends at least one of first indication signaling, including following manner in first time period:

First indication signaling is sent in first subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is sent in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is sent in the discovery reference signal DRS subframe in the first time period.

Optionally, as one embodiment, the time-domain position information includes at least one of following situations: the information that the first PRACH resource whether there is in the second time period；The location information of first PRACH resource subframe where in the second time period；The location information of first PRACH resource symbol where in the second time period.

Optionally, as one embodiment, the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.

Optionally, as one embodiment, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

Optionally, further include as one embodiment, in first indication signaling in following information at least one of:

The format of the random access leader sequence carried in the first PRACH resource；

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；

Random access radio network temporary identifier RA-RNTI.

Optionally, as one embodiment, the first PRACH resource includes first resource block RB and the 2nd RB, wherein the frequency domain interval between the first RB and the 2nd RB is greater than or equal to default frequency domain interval.

Optionally, as one embodiment, the transmission unit is specifically also used to:

The second indication signaling is sent to first terminal equipment, second indication signaling is terminal device dedicated signaling, the first terminal equipment is one in the terminal device under the cell of the access network equipment service, second indication signaling includes the 2nd PRACH resource indication information, wherein, include at least one of following information in the 2nd PRACH resource indication information:

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

Wherein, the 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment.

The access network equipment of transmission PRACH according to an embodiment of the present invention can correspond to the access network equipment in the method according to an embodiment of the present invention for sending PRACH.Also, each unit and above-mentioned other operation and/or functions that access network equipment includes respectively in order to realize in Fig. 3 by access network equipment execute each step.For sake of simplicity, details are not described herein again.

Above in association with Fig. 5, the access network equipment of transmission information according to an embodiment of the present invention is described in detail.Below in conjunction with Fig. 6, illustrate terminal device according to an embodiment of the present invention.

Fig. 6 shows the schematic block diagram of the terminal device of transmission PRACH according to an embodiment of the present invention.As shown in fig. 6, the terminal device includes receiving unit 610 and transmission unit 620, wherein

Receiving unit 410, for receiving the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling；

Transmission unit 420 sends random access leader sequence in the first PRACH resource in the second time period.

Optionally, as one embodiment, the receiving unit is specifically used for:

First indication signaling is received on the subframe n in the first time period, n is the integer more than or equal to 0, wherein the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The starting subframe and the deviant of the subframe n are fixed value；

Optionally, as one embodiment, the receiving unit receives at least one of first indication signaling, including following manner in the first time period:

First indication signaling is received in first subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is received in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is received in the discovery reference signal DRS subframe in the first time period.

Optionally, as one embodiment, the time-domain position information includes at least one of following situations:

The information that the first PRACH resource whether there is in the second time period；

The location information of first PRACH resource subframe where in the second time period；

The location information of first PRACH resource symbol where in the second time period.

Optionally, as one embodiment, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information is also used to indicate to carry in the first PRACH resource by configuration index instruction, the configuration index At least one of the format of random access leader sequence, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

Random access radio network temporary identifier RA-RNTI.

Terminal device according to an embodiment of the present invention can correspond to the terminal device in the method according to an embodiment of the present invention for sending PRACH.Also, each unit and above-mentioned other operation and/or functions that terminal device includes respectively in order to realize in Fig. 3 by terminal device execute each step.For sake of simplicity, details are not described herein again.

Fig. 7 shows the schematic block diagram of terminal device according to an embodiment of the present invention.As shown in fig. 7, the terminal device includes receiving unit 510,

Receiving unit 510, for receiving the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling.

Optionally., as one embodiment, the receiving unit is specifically used for:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value；The starting subframe and the deviant of the subframe n are fixed value；

Optionally, as one embodiment, the receiving unit is specifically used for:

Receive the second indication signaling that the access network equipment is sent, second indication signaling is terminal device dedicated signaling, one in terminal device under the cell of access network equipment service described in the terminal device, second indication signaling includes the 2nd PRACH resource indication information, it wherein, include at least one of following information: the sequence identifier of the random access leader sequence carried in the 2nd PRACH resource in the 2nd PRACH resource indication information；

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

Wherein, the 2nd PRACH resource is different from the first PRACH resource,

And the terminal device further include:

Transmission unit, for sending third random access leader sequence in the 2nd PRACH resource.

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

Random access radio network temporary identifier RA-RNTI.

Terminal device according to an embodiment of the present invention can correspond to the first terminal equipment in the method according to an embodiment of the present invention for sending PRACH.Also, each unit and above-mentioned other operation and/or functions that terminal device includes are respectively in order to realize each step executed in Fig. 3 by first terminal equipment.For sake of simplicity, details are not described herein again.

Above in association with Fig. 5 to Fig. 7, the access network equipment and terminal device of transmission PRACH according to an embodiment of the present invention is described in detail.Illustrate access network equipment and terminal device according to an embodiment of the present invention below in conjunction with Fig. 8 to Figure 10.

Fig. 8 shows the schematic diagram of access network equipment 600 according to an embodiment of the present invention.As shown in figure 8, the access network equipment 600 includes processor 610, transceiver 620 and memory 630.Optionally, which further includes bus system 640, wherein processor 610, transceiver 620 and memory 630 can be connected by bus system 640.Memory 630 can be used for store instruction, and processor 610 is used to execute the instruction of the storage of memory 630, and transceiver 620 is used for,

The first indication signaling is sent in first time period, includes the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate described first Time-domain position information of the PRACH resource in second time period, the first PRACH resource are the terminal equipment configurations under the cell for the access network equipment service, and first indication signaling is physical layer signaling；

Processor 610 detects random access leader sequence in the first PRACH resource in the second time period.

Optionally, as one embodiment, transceiver 620 is specifically used for,

The starting subframe and the deviant of the subframe n are fixed value；

Optionally, as one embodiment, transceiver 620 sends the first indication signaling in first time period, specifically includes at least one of following manner:

It optionally, include described as one embodiment, in the first PRACH resource indication information Configuration index of the first PRACH resource in the second time period, the time-domain position information passes through configuration index instruction, at least one of the format of random access leader sequence, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, the generation parameter of root sequence and the random access radio network temporary identifier RA-RNTI that the configuration index is also used to indicate to carry in the first PRACH resource, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

Random access radio network temporary identifier RA-RNTI.

Optionally, as one embodiment, the transceiver 620 is specifically also used to:

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

It should be understood that, in embodiments of the present invention, processor 610 can be central processing unit (central processing unit, CPU), processor 610 can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General place Reason device can be microprocessor or the processor is also possible to any conventional processor etc..

Memory 630 may include read-only memory and random access memory, and provide instruction and data to processor 610.The a part of of processor 610 can also include nonvolatile RAM.For example, processor 610 can be with the information of storage device type.

Bus system 640 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 640 in figure.

During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 610 or the instruction of software form.The step of method of PRACH is sent in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and execute completion, or in processor hardware and software module combine and execute completion.Software module can be located at random access memory, flash memory, read-only memory, in the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory 630, and processor 610 reads the information in memory 630, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.

Access network equipment 600 according to an embodiment of the present invention can correspond to the access network equipment in the method for transmitting random access preamble sequence according to an embodiment of the present invention.Also, each unit and above-mentioned other operation and/or functions in equipment 600 respectively in order to realize in figure by access network equipment execute each step.For sake of simplicity, details are not described herein again.

Fig. 9 shows the schematic diagram of terminal device 700 according to another embodiment of the present invention.As shown in figure 9, terminal device 700 includes processor 710, transceiver 720 and memory 730.Optionally, which further includes bus system 740, wherein and processor 710, transceiver 720 and memory 730 can be connected by bus system 740, and memory 730 can be used for store instruction, and processor 710 is used to execute the instruction of the storage of memory 730,

Transceiver 720 in first time period for receiving the first indication signaling, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling；

Transmission unit sends random access leader sequence in the first PRACH resource in the second time period.

Optionally, as one embodiment, the transceiver 720 is specifically used for,

The starting subframe and the deviant of the subframe n are fixed value；

Optionally, as one embodiment, the transceiver 720 receives the first indication signaling in the first time period, specifically includes at least one of following manner:

Optionally, as one embodiment, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information is indexed in the format of random access leader sequence, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, the generation parameter of root sequence and the random access radio network temporary identifier RA-RNTI for being also used to indicate to carry in the first PRACH resource by configuration index instruction, the configuration It is at least one, wherein the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

Random access radio network temporary identifier RA-RNTI.

It should be understood that, in embodiments of the present invention, processor 710 can be central processing unit (central processing unit, CPU), processor 710 can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor etc..

Memory 730 may include read-only memory and random access memory, and provide instruction and data to processor 710.The a part of of processor 710 can also include nonvolatile RAM.For example, processor 710 can be with the information of storage device type.

Bus system 740 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 740 in figure.

During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 710 or the instruction of software form.In conjunction with disclosed in the embodiment of the present invention the step of method of transmitting random access preamble sequence, hardware processor can be embodied directly in and execute completion, or in processor hardware and software module combination execute completion.Software module can be located at random access memory, flash memory, read-only memory, in the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory 730, and processor 710 reads the information in memory 730, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.

Terminal device according to an embodiment of the present invention can correspond to the terminal device in the method according to an embodiment of the present invention for sending PRACH.Also, each unit and above-mentioned other operation and/or functions that the terminal device equipment includes respectively in order to realize in Fig. 3 by terminal device execute each step.For sake of simplicity, details are not described herein again.

Figure 10 shows the schematic block diagram of terminal device 800 according to another embodiment of the present invention.As shown in Figure 10, equipment 800 includes processor 810, transceiver 820 and memory 830.Optionally, which further includes bus system 840, wherein and processor 810, transceiver 820 and memory 830 can be connected by bus system 1040, and memory 830 can be used for store instruction, and processor 810 is used to execute the instruction of the storage of memory 830,

Transceiver 820, for receiving the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling.

Optionally., as one embodiment, the transceiver 820 is specifically used for:

Optionally, as one embodiment, the transceiver 820 receives the first indication signaling in the first time period, specifically includes at least one of following manner:

The first instruction letter is received in the discovery reference signal DRS subframe in the first time period It enables.

Optionally, as one embodiment, the transceiver 820 is specifically used for:

Receive the second indication signaling that the access network equipment is sent, second indication signaling is terminal device dedicated signaling, one in terminal device under the cell of access network equipment service described in the equipment, second indication signaling includes the 2nd PRACH resource indication information, it wherein, include at least one of following information: the sequence identifier of the random access leader sequence carried in the 2nd PRACH resource in the 2nd PRACH resource indication information；

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

Wherein, the 2nd PRACH resource is different from the first PRACH resource,

The transceiver 820 is specifically also used to, and third random access leader sequence is sent in the 2nd PRACH resource.

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

Random access radio network temporary identifier RA-RNTI.

It should be understood that, in embodiments of the present invention, processor 810 can be central processing unit (central processing unit, CPU), processor 810 can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor etc..

Memory 830 may include read-only memory and random access memory, and provide instruction and data to processor 810.The a part of of processor 810 can also include nonvolatile RAM.For example, processor 810 can be with the information of storage device type.

Bus system 840 can also include power bus, control bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 840 in figure.

During realization, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 810 or the instruction of software form.In conjunction with disclosed in the embodiment of the present invention the step of method of transmitting random access preamble sequence, hardware processor can be embodied directly in and execute completion, or in processor hardware and software module combination execute completion.Software module can be located at random access memory, flash memory, read-only memory, in the storage medium of this fields such as programmable read only memory or electrically erasable programmable memory, register maturation.The step of storage medium is located at memory 830, and processor 810 reads the information in memory 830, completes the above method in conjunction with its hardware.To avoid repeating, it is not detailed herein.

Terminal device according to an embodiment of the present invention can correspond to the first terminal equipment in the method according to an embodiment of the present invention for sending PRACH.Also, each unit and above-mentioned other operation and/or functions that the terminal device includes are respectively in order to realize each step executed in Fig. 3 by first terminal equipment.For sake of simplicity, details are not described herein again.

It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence of each process be should be determined by its function and internal logic, without answering Any restriction is constituted to the implementation process of the embodiment of the present invention.

Those of ordinary skill in the art may be aware that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.

If the function is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, substantially the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (read-only memory, RAM), random access memory (random access memory, ROM), magnetic or disk etc. are various can be with Store the medium of program code.

It is described above; only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and anyone skilled in the art is in the technical scope disclosed by the present invention; it can easily think of the change or the replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

A method of sending Physical Random Access Channel PRACH, which is characterized in that the described method includes:

Access network equipment sends the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service, and first indication signaling is physical layer signaling；

The access network equipment detects random access leader sequence in the first PRACH resource in the second time period.
The method according to claim 1, wherein the access network equipment sends the first indication signaling in first time period, comprising:

The access network equipment sends first indication signaling on the subframe n in the first time period, and n is the integer more than or equal to 0；

Wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value, wherein the first time period is the downlink burst；

The starting subframe and the deviant of the subframe n are fixed value；

The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；

The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.
Method according to claim 1 or 2, which is characterized in that the access network equipment sends at least one of first indication signaling, including following manner in first time period:

The access network equipment sends first indication signaling in first subframe in a downlink burst, wherein the first time period is a downlink burst；

The access network equipment sends first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

The access network equipment sends first indication signaling in the discovery reference signal DRS subframe in the first time period.
According to the method in any one of claims 1 to 3, which is characterized in that the time-domain position information includes at least one of following situations:

The information that the first PRACH resource whether there is in the second time period；

The location information of first PRACH resource subframe where in the second time period；

The location information of first PRACH resource symbol where in the second time period.
Method according to claim 1 to 4, which is characterized in that the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.
Method according to claim 1 to 4, it is characterized in that, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.
Method according to claim 1 to 4, which is characterized in that further include at least one in following information in first indication signaling:

The format of the random access leader sequence carried in the first PRACH resource；

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；

Random access radio network temporary identifier RA-RNTI.
The method according to any one of claims 1 to 5, which is characterized in that the frequency domain position of the first PRACH resource occupation includes at least one of following situations:

System bandwidth includes 100 RB, and by 100 RB from 1 number to 100, the number of the resource block RB of the first PRACH resource occupation is 10,11,12,13,14,15,86,87,88,89,90,91；

System bandwidth includes 50 RB, and by 50 RB from 1 number to 50, the number of the resource block RB of the first PRACH resource occupation is 5,6,7,8,9,10,41,42,43,44,45,46.
Method according to any one of claim 1 to 8, which is characterized in that the method Further include:

The access network equipment sends the second indication signaling to first terminal equipment, second indication signaling is terminal device dedicated signaling, the first terminal equipment is one in the terminal device under the cell of the access network equipment service, second indication signaling includes the 2nd PRACH resource indication information, wherein, include at least one of following information in the 2nd PRACH resource indication information:

The sequence identifier of the random access leader sequence carried in 2nd PRACH resource；

The format of the random access leader sequence carried in 2nd PRACH resource；

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource；

The 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment.
A method of sending Physical Random Access Channel PRACH, which is characterized in that the described method includes:

Terminal device receives the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling；

The terminal device sends random access leader sequence in the first PRACH resource in the second time period.
According to the method described in claim 10, it is characterized in that, the terminal device receives the first indication signaling in first time period, comprising:

The terminal device receives first indication signaling on the subframe n in the first time period, and n is the integer more than or equal to 0；

Wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value, wherein the first time period is the downlink burst；

The starting subframe and the deviant of the subframe n are fixed value；

The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；

The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.
Method described in 0 or 11 according to claim 1, which is characterized in that the terminal device receives at least one of first indication signaling, including following manner in first time period:

The terminal device receives first indication signaling in first subframe in a downlink burst, wherein the first time period is a downlink burst；

The terminal device receives first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

The terminal device receives first indication signaling in the discovery reference signal DRS subframe in the first time period.
Method according to any one of claims 10 to 12, which is characterized in that the time-domain position information includes at least one of following situations:

The information that the first PRACH resource whether there is in the second time period；

The location information of first PRACH resource subframe where in the second time period；

The location information of first PRACH resource symbol where in the second time period.
Method described in any one of 0 to 13 according to claim 1, which is characterized in that the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.
Method described in any one of 0 to 13 according to claim 1, it is characterized in that, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.
Method described in any one of 0 to 13 according to claim 1, which is characterized in that further include at least one in following information in first indication signaling:

The format of the random access leader sequence carried in the first PRACH resource；

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；

Random access radio network temporary identifier RA-RNTI.
Method described in any one of 0 to 14 according to claim 1, which is characterized in that the frequency domain position of the first PRACH resource occupation includes at least one of following situations:

System bandwidth includes 100 RB, and by 100 RB from 1 number to 100, the number of the resource block RB of the first PRACH resource occupation is 10,11,12,13,14,15,86,87,88,89,90,91；

System bandwidth includes 50 RB, and by 50 RB from 1 number to 50, the number of the resource block RB of the first PRACH resource occupation is 5,6,7,8,9,10,41,42,43,44,45,46.
A kind of access network equipment, which is characterized in that the access network equipment includes:

Transmission unit, for sending the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell for the access network equipment service, and first indication signaling is physical layer signaling；

Processing unit detects random access leader sequence in the first PRACH resource in the second time period.
Access network equipment according to claim 18, which is characterized in that the transmission unit is specifically used for sending first indication signaling on the subframe n in the first time period, and n is the integer more than or equal to 0,

Wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n is fixed value, wherein the first time period is the downlink burst；

The starting subframe and the deviant of the subframe n are fixed value；

The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；

The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.
Access network equipment described in 8 or 19 according to claim 1, which is characterized in that the transmission unit sends first indication signaling in the first time period, including at least one in following manner Kind:

First indication signaling is sent in first subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is sent in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

First indication signaling is sent in the discovery reference signal DRS subframe in the first time period.
Access network equipment described in any one of 8 to 20 according to claim 1, which is characterized in that the time-domain position information includes at least one of following situations:

The information that the first PRACH resource whether there is in the second time period；

The location information of first PRACH resource subframe where in the second time period；

The location information of first PRACH resource symbol where in the second time period.
Access network equipment described in any one of 8 to 21 according to claim 1, which is characterized in that the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.
Access network equipment described in any one of 8 to 21 according to claim 1, it is characterized in that, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.
Access network equipment described in any one of 8 to 21 according to claim 1, which is characterized in that further include at least one in following information in first indication signaling:

The format of the random access leader sequence carried in the first PRACH resource；

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；

Random access radio network temporary identifier RA-RNTI.
Access network equipment described in any one of 8 to 22 according to claim 1, which is characterized in that the frequency domain position of the first PRACH resource occupation includes at least one of following situations:

System bandwidth includes 100 RB, and by 100 RB from 1 number to 100, the number of the resource block RB of the first PRACH resource occupation is 10,11,12,13,14,15,86,87,88,89,90,91；

System bandwidth includes 50 RB, and by 50 RB from 1 number to 50, the number of the resource block RB of the first PRACH resource occupation is 5,6,7,8,9,10,41,42,43,44,45,46.
Access network equipment described in any one of 8 to 25 according to claim 1, it is characterized in that, the transmission unit is specifically also used to send the second indication signaling to first terminal equipment, second indication signaling is terminal device dedicated signaling, the first terminal equipment is one in the terminal device under the cell of the access network equipment service, second indication signaling includes the 2nd PRACH resource indication information

Wherein, include at least one of following information in the 2nd PRACH resource indication information:

The sequence identifier of the random access leader sequence carried in 2nd PRACH resource；

The format of the random access leader sequence carried in 2nd PRACH resource；

The time-domain position information of 2nd PRACH resource；

The frequency domain position information of 2nd PRACH resource,

The 2nd PRACH resource is different from the first PRACH resource, and the 2nd PRACH resource carries out random access for the first terminal equipment.
A kind of terminal device, which is characterized in that the terminal device includes:

Receiving unit, for receiving the first indication signaling in first time period, it include the first PRACH resource indication information in first indication signaling, the first PRACH resource indication information is used to indicate time-domain position information of the first PRACH resource in second time period, the first PRACH resource is the terminal equipment configuration under the cell that access network equipment is the access network equipment service, and first indication signaling is physical layer signaling；

Transmission unit sends random access leader sequence in the first PRACH resource in the second time period.
Terminal device according to claim 27, which is characterized in that the receiving unit is specifically used for receiving first indication signaling on the subframe n in the first time period, and n is the integer more than or equal to 0,

Wherein, the starting subframe in the subframe n and the second time period meets at least one of the following conditions:

The deviant of the starting subframe and the last one subframe in the downlink burst where the subframe n For fixed value, wherein the first time period is the downlink burst；

The starting subframe and the deviant of the subframe n are fixed value；

The starting subframe is first ascender subframe after subframe n+k, and the ascender subframe is the subframe that at least one symbol is not used in uplink, k >=1；

The starting subframe is first uplink complete subframe after subframe n+k, and the uplink complete subframe is all used for the sub-frame of uplink of uplink, k >=1 for whole symbols in a subframe.
The terminal device according to claim 27 or 28, which is characterized in that the receiving unit receives at least one of first indication signaling, including following manner in the first time period:

The receiving unit is specifically used for receiving first indication signaling in first subframe in a downlink burst, wherein the first time period is a downlink burst；

The receiving unit is specifically used for receiving first indication signaling in the last one subframe in a downlink burst, wherein the first time period is a downlink burst；

The receiving unit is specifically used for receiving first indication signaling in the discovery reference signal DRS subframe in the first time period.
The terminal device according to any one of claim 27 to 29, which is characterized in that the time-domain position information includes at least one of following situations:

The information that the first PRACH resource whether there is in the second time period；

The location information of first PRACH resource subframe where in the second time period；

The location information of first PRACH resource symbol where in the second time period.
The terminal device according to any one of claim 27 to 30, which is characterized in that the format information of the random access leader sequence carried in the first PRACH resource described in the time-domain position information implicit instruction.
The terminal device according to any one of claim 27 to 30, it is characterized in that, it include configuration index of the first PRACH resource in the second time period in the first PRACH resource indication information, the time-domain position information passes through configuration index instruction, the format for the random access leader sequence that the configuration index is also used to indicate to carry in the first PRACH resource, the frequency domain position of the first PRACH resource, zero correlation block configuration parameter, at least one of the generation parameter of root sequence and random access radio network temporary identifier RA-RNTI, wherein, the generation parameter of described sequence is used to generate the root sequence of the random access leader sequence.
The terminal device according to any one of claim 27 to 30, which is characterized in that further include at least one in following information in first indication signaling:

The format of the random access leader sequence carried in the first PRACH resource；

The frequency domain position of the first PRACH resource；

Zero correlation block configuration parameter；

The generation parameter of root sequence, for generating the root sequence of the random access leader sequence；

Random access radio network temporary identifier RA-RNTI.
The terminal device according to any one of claim 27 to 31, which is characterized in that the frequency domain position of the first PRACH resource occupation includes at least one of following situations:

System bandwidth includes 100 RB, and by 100 RB from 1 number to 100, the number of the resource block RB of the first PRACH resource occupation is 10,11,12,13,14,15,86,87,88,89,90,91；

System bandwidth includes 50 RB, and by 50 RB from 1 number to 50, the number of the resource block RB of the first PRACH resource occupation is 5,6,7,8,9,10,41,42,43,44,45,46.