WO2017157152A1

WO2017157152A1 - Access processing method and apparatus

Info

Publication number: WO2017157152A1
Application number: PCT/CN2017/074599
Authority: WO
Inventors: 刘锟; 戴博; 鲁照华; 夏树强; 陈宪明; 方惠英; 石靖; 张雯
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-03-15
Filing date: 2017-02-23
Publication date: 2017-09-21

Abstract

The present invention provides an access processing method and apparatus. The method comprises: a terminal selects a sequence corresponding to the terminal in a sequence set; the terminal generates a random access signal at least according to the corresponding sequence; and the terminal sends the random access signal to a base station. By means of the present invention, the problem in the related art of failure to ensure a variety of terminals can all successfully access a system, thereby achieving the effect that the variety of terminals can all successfully access the system.

Description

Access processing method and device

Technical field

The present invention relates to the field of communications, and in particular to an access processing method and apparatus.

Background technique

Machine Type Communication (MTC) User Equipment (UE) (hereinafter referred to as MTC UE), also known as Machine to Machine (M2M) user terminal, is the current stage. The main application form of the Internet of Things. In the 3rd Generation Partnership Project (3GPP) Technical Report TR45.820V200, several technologies suitable for cellular-level Internet of Things are disclosed, in which a cellular-based narrowband Internet of Things (Narrow Band Internet of Things, referred to as NB-IoT, are the most compelling technologies. Considering that the number of user communication devices supported in the Internet of Things is very large, there are many types of terminals supported, including terminals that support only a single subcarrier baseband processing capability and terminals that can support multiple subcarrier baseband processing capabilities. Then how can the base station ensure that all types of terminals are successfully connected to the system, and NB-IoT technology currently lacks an effective solution.

For the problem that the related technologies cannot guarantee that various types of terminals are successfully connected to the system, an effective solution has not been proposed yet.

Summary of the invention

The present invention provides an access processing method and apparatus to solve at least the problem that the related technologies cannot guarantee that all types of terminals successfully access the system.

According to an aspect of the present invention, an access processing method is provided, including: selecting, by a terminal, a sequence corresponding to the terminal in a sequence set; the terminal generating a random access signal according to at least the corresponding sequence; Sending the random access signal to the base station.

Optionally, the sequence set includes a sequence of J sequences having a length of N, wherein the sequence of the index of j is expressed as

J is a positive integer and N is a positive integer.

Optionally, the sequence set includes R sequence subsets, and the R sequence subsets are configured to different terminal sets; where R is a positive integer.

Optionally, the sequence corresponding to the terminal in the terminal selection sequence set includes: the terminal determining, from the R sequence subsets, a sequence subset corresponding to a terminal set to which the terminal belongs; the terminal determining One of the sequence sub-sets is selected as the corresponding sequence.

Optionally, the determining, by the terminal, the sequence sub-set corresponding to the terminal set to which the terminal belongs to the terminal includes: the terminal selecting the (Y+1)th of the R sequence sub-sets The sequence sub-set is a sequence sub-set corresponding to the terminal set to which the terminal belongs, where Y=Mod (Cell ID, R), and the Cell ID is the cell identity index accessed by the terminal.

Optionally, the R sequence subsets are respectively configured to R different terminal sets.

Optionally, the method includes at least one of: when the number of terminal sets is 2, 2 different terminal sets are a first terminal set and a second terminal set, the first terminal set and the second The terminal set satisfies at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers, and the terminal included in the second terminal set is a terminal that supports only single subcarrier transmission; The terminal included in the first terminal set is a terminal that transmits uplink data by using multiple subcarriers, and the terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier; a terminal that simultaneously transmits an Msg3 message, and the terminal included in the second terminal set is a terminal that transmits an Msg3 message by using a single subcarrier; the terminal included in the first terminal set is a Msg3 message bearer transmitted on multiple subcarriers. Terminal, and the terminal included in the second terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission; The set of terminals comprising a terminal support and a single sub-carrier transmission subcarrier spacing f _sc1 terminal, the second set of terminals including a terminal support and a single sub-carrier transmission subcarrier spacing f _sc2 terminal; the first The terminal included in the terminal set is a terminal that transmits uplink data by using a single subcarrier and has a subcarrier spacing of f _sc1 ; the terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier and has a subcarrier spacing of f _sc2 ; The terminal included in the first terminal set is a terminal that uses a single subcarrier to transmit an Msg3 message and has a subcarrier spacing of f _sc1 , and the second terminal set includes a terminal that uses a single subcarrier to transmit an Msg3 message and the subcarrier spacing is f. a terminal of the _sc2 ; the terminal included in the first terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the terminal included in the second terminal set is a Msg3 message carried only in a single sub a terminal that transmits a carrier and has a subcarrier spacing of f _sc2 ; the terminal included in the first terminal set is that the amount of information carried in the Msg3 message is Si The terminal of the ze1, the terminal included in the second terminal set is a terminal that carries the amount of information in the Msg3 message is Size2, where Size1 is not equal to Size2; when the number of terminal sets is 3, three different terminal sets are a terminal set, a second terminal set, and a third terminal set, where the first terminal set, the second terminal set, and the third terminal set meet at least one of the following conditions: the first terminal set includes a terminal To support a terminal that transmits multiple subcarriers simultaneously, the terminal included in the second terminal set is a terminal that supports only a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the terminal included in the third terminal set only supports a single sub a terminal that is transmitted by a carrier and has a subcarrier spacing of f _sc2 ; the terminal included in the first terminal set is a terminal that transmits uplink data by using multiple subcarriers, and the terminal included in the second terminal set transmits uplink data by using a single subcarrier and a terminal with a subcarrier spacing of f _sc1 ; the terminal included in the third terminal set transmits uplink data by using a single subcarrier and the subcarrier spacing is f _{sc 2} terminal; the first terminal comprises a set of terminals using a plurality of subcarriers to transmit the message Msg3 terminal, said second terminal is a terminal set includes a single sub-carrier transmission using message Msg3 terminal and subcarrier spacing of f _sc1 The terminal included in the third terminal set is a terminal that uses a single subcarrier to transmit an Msg3 message and the subcarrier spacing is f _sc2 ; the terminal included in the first terminal set is a terminal that the Msg3 message carries on multiple subcarriers, The terminal included in the second terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the terminal included in the third terminal set is that the Msg3 message is only carried in a single subcarrier transmission and the sub a terminal with a carrier spacing of f _sc2 ; the terminal included in the first terminal set is a terminal that carries information in the Msg3 message is Size1, and the terminal included in the second terminal set is that the amount of information carried in the Msg3 message is Size2. The terminal includes a terminal that is included in the Msg3 message and whose amount of information is Size3, where Size1, Size2, and Size3 are different from each other. And when the number of terminal sets is 4, the four different terminal sets are a first terminal set, a second terminal set, a third terminal set, and a fourth terminal set, and the first terminal set, the second terminal The set, the third terminal set, and the fourth terminal set meet at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers and a subcarrier spacing of f _sc1 , The second terminal set includes a terminal that supports simultaneous transmission of multiple subcarriers and a subcarrier spacing of f _sc2 , and the terminal included in the third terminal set is a terminal that supports only a single subcarrier transmission and has a subcarrier spacing of f _sc3 . The terminal included in the fourth terminal set is a terminal that supports only a single subcarrier transmission and the subcarrier spacing is f _sc4 ; the terminal included in the first terminal set transmits uplink data by using multiple subcarriers and the subcarrier spacing is f _sc1 terminal, the terminal comprises a second set of terminals using a plurality of sub-carriers to transmit the uplink data and the subcarrier spacing f _sc2 terminal, the third terminal set Including using a single terminal is transmitting uplink data subcarriers and subcarrier spacing f _sc3 terminal; said fourth set of terminals including a terminal for the use of a single subcarrier for transmitting uplink data and the subcarrier spacing f _sc4 terminal; said The terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit Msg3 messages and the subcarrier spacing is f _sc1 , and the second terminal set includes terminals that transmit Msg3 messages by using multiple subcarriers and the subcarrier spacing is f _sc2 . a terminal, where the terminal included in the third terminal set is a terminal that transmits an Msg3 message by using a single subcarrier and has a subcarrier spacing of f _sc3 , where the terminal included in the fourth terminal set transmits a Msg3 message by using a single subcarrier and the subcarrier spacing a terminal that is f _sc4 ; the terminal that is included in the first terminal set is a terminal that transmits Msg3 messages on multiple subcarriers and has a subcarrier spacing of f _sc1 , and the terminal included in the second terminal set is a Msg3 message bearer. and transmitting the subcarriers for the subcarrier spacing f _sc2 terminal, the third terminal is a set of terminals included in the Msg3 message carries only a single sub- Wave transmission and the subcarrier spacing f _sc3 terminal, said fourth terminal is a terminal set includes a message Msg3 carrying only a single sub-carrier transmission and the subcarrier spacing f _sc4 terminal; the first set of terminals including a terminal And the terminal that is included in the Msg3 message is a terminal that is in the Msg3 message, and the terminal that is included in the Msg3 message is a terminal that is carried in the Msg3 message. The terminal having the information amount of Size3, the terminal included in the fourth terminal set is a terminal that carries the amount of information in the Msg3 message is Size4, where Size1, Size2, Size3, and Size4 are not equal to each other.

Optionally, the sequence of the J sequences having a length of N satisfies at least one of the following: the length of the J sequences is N The sequence is an orthogonal codeword sequence; the sequence in which the J sequences are all N is a quasi-orthogonal codeword sequence; and the sequence in which the J sequences are all N is a predefined sequence.

Optionally, said

Satisfy at least one of the following: J of different values corresponding to Code _j

Mutual orthogonal code words, or quasi-orthogonal code words; mutually different values of j corresponding to Code _j

They are orthogonal code words, or mutually quasi-orthogonal code words, where 0 ≤ i ≤ N / 2-1.

Optionally, the value of N is one of the following: 2, 4, 6, and 8.

Optionally, when J=1, and N=4, the J sequence sequence length N includes at least one of the following:

Among them, A is

C is a constant,

Optionally, the method includes at least one of the following: when J=1, and N=4, the J sequence sequence length N includes at least one of the following:

When R=2, J=2, and N=4, the sequence of J sequence lengths of N includes at least one of the following:

Wherein, one of Code ₀ and Code ₁ is configured to the terminal in the first terminal set, and the other is configured to the terminal in the second terminal set; when R=2, J=2, and N=8, J The sequence of strip length N includes at least one of the following:

Wherein, one of Code ₀ and Code ₁ is configured to the terminal in the first terminal set, and the other is configured to the terminal in the second terminal set; when R=3, J=3, and N=4, J The sequence of strip length N includes at least one of the following:

Any three of them;

Any three of them; wherein three sequences of sequence length N are respectively allocated to terminals in three terminal sets; when R=4, J=4, and N=4, J sequences of sequence length N are N Includes at least one of the following:

Wherein, four sequences of sequence length N are respectively allocated to terminals in the four terminal sets; wherein A is

C is a constant,

Optionally, when the sequence corresponding to the terminal is

And generating, by the terminal, the random access signal according to the corresponding sequence at least: the terminal determines a subcarrier with an index of f _n in the frequency domain, and occupies consecutive K symbols in the time domain.

The frequency domain expression of the signal transmitted on the kth symbol and on the subcarrier f _n is

The frequency domain expression of the K symbol and the signal transmitted on the subcarrier f _n is

Wherein, 0≤k≤K-1; the terminal is at least according to the

Determining the random access signal.

Optionally, the terminal is at least according to the

Determining the random access signal includes:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol,

For the frequency domain resource occupied by the subcarrier indexed as f _n , F _Offset is the frequency domain offset; and/or, when the current domain sampling interval is T _s ,

Corresponding time domain

The expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol, 0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

Number of samples in the time domain; the terminal is sent on consecutive K symbols

The time domain expression is

Said terminal according to at least said

Determining the random access signal.

Optionally, the terminal is at least according to the

Determining the random access signal comprises: the terminal generating a cyclic prefix CP _n according to the following formula, CP _n ={S _n [QK-L+1],...,S _n [QK]}, where L indicates that the CP _n is included The number of time domain sampling intervals T _s ; then the expression of the random access signal transmitted by the terminal on the subcarrier f _n is Group _n = {CP _n , S _n }, and the terminal is in the subcarrier f ₀ , The expression of the random access signal transmitted on f ₁ , . . . , f _N-1 is {Group ₀ , Group ₁ , ... Group _N-1 }; wherein Group _{n with} different values of _n occupy different time domains. Time domain symbol.

Optionally, the group ₀ to the group _N-1 are the unit units constituting the random access signal, and the terminal sending the random access signal to the base station includes: the terminal determining that the unit is the random connection Transmitting a signal and repeating the random access signal H times for transmission; and/or, the terminal repeating the unit H times in the time domain to form the random access signal, and transmitting the random access signal.

Optionally, after the terminal sends the random access signal Group _n on the subcarrier f _n , the terminal needs to introduce an interval of a time length of Gap.

Optionally, at least one of the following is included: when N=4, K=5, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the Gap The length of the time domain is 0.4 ms; when N=4, K=5, the time domain length of CP _n is 66.7 us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time of the Gap The length of the domain is 0.6ms; when N=4, K=5, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; when N=4, K=5, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75 kHz, Gap The time domain length is 18432*Ts, where Ts=32.55 ns.

Optionally, the H repetitions of the unit include Y groups, and the indexes defining the Y groups are Group ₀ to Group _Y-1 , where Y=H*N; when the terminal completes the Group _start to the Group _end After the transmission of the random access signals of the y groups, it is necessary to introduce an interval of a time length of Gap; wherein, 0≤start≤end≤Y-1, y≤Y.

Optionally, start=offset+y×N _gap , where N _gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first group _start ; or, start=y×N _gap Where N _gap is the number of intervals in which the length of time is introduced as Gap.

Optionally,

or

Or N _gap = Y / y.

Optionally, end=start+y-1.

Optionally, the Gap satisfies at least one of the following conditions: y×L_G+Gap=T×TimeUnit, where L_G is the length of time of the group, Gap≥0, T is a positive integer, and TimeUnit is a length of time. Unit of measure; y × L_G + Gap = T × TimeUnit, where L_G is the length of time of the Group, Gap ≥ 0, T is a positive integer and T is the minimum value that satisfies T × TimeUnit > y × L_G, and TimeUnit is one The unit of measure of the length of time.

Optionally, after the terminal sends a random access signal of the unit, it is required to introduce an interval of a time length of Gap.

Optionally, at least one of the following is included: when N=4, K=5, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the Gap The length of the time domain is 0.6 ms; when N=4, K=5, the time domain length of CP _n is 66.7 us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time of the Gap The length of the domain is 0.4 ms; when N=4, K=5, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55 ns; when N=4, K=5, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75 kHz, Gap The time domain length is 12288*Ts, where Ts=32.55 ns.

Optionally, the H-repetition index of the unit is defined as Unit ₀ to Unit _H-1 . After the terminal completes the unit _start to unit _{end, a} total of y units of random access signals are sent, and the length of time required to be introduced is The interval of Gap; where 0≤start≤end≤Y-1, y≤Y.

Optionally, start=offset+y×N _gap , where N _gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first unit _start ; or, start=y×N _gap Where N _gap is the number of intervals in which the length of time is introduced as Gap.

Optionally,

or

Or N _gap = Y / y.

Optionally, end=start+y-1.

Optionally, the Gap satisfies at least one of the following conditions: y×L_U+Gap=T×TimeUnit, where L_G is the length of time of the unit, gap≥0, T is a positive integer, and TimeUnit is a length of time. The unit of measurement; y × L_U + Gap = T × TimeUnit, where L_G is the length of time of the Unit, Gap ≥ 0, T is a positive integer and T is the minimum value that satisfies T × TimeUnit > y × L_U, TimeUnit is A measure of the length of time.

Optionally, at least one of the following is included: when N=4, K=5, H=1, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75 kHz. The time domain length of Gap is 18432*Ts, where Ts=32.55 ns; when N=4, K=5, H=2, the time domain length of CP _n is 8192*Ts, and the sender of the random access signal is sent. When the carrier spacing or subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 6144*Ts or 36864*Ts, where Ts=32.55 ns; when N=4, K=5, H=4, the time domain of CP _n The length is 8192*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; when N=4, K=5, H=8, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; When N=4, K=5, H=16, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*. Ts, where Ts=32.5 5 ns; when N=4, K=5, H=1, the time domain length of CP _n is 2048*Ts, and the sub-carrier spacing or sub-carrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; when N=4, K=5, H=2, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75. In kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; when N=4, K=5, H=4, the time domain length of CP _n is 2048*Ts, and the random access signal is transmitted. When the subcarrier spacing or subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55 ns; when N=4, K=5, H=8, the time domain length of CP _n is 2048. *Ts, when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 6144*Ts or 36864*Ts, where Ts=32.55 ns; when N=4, K=5 , H=16, the time domain length of CP _n is 2048*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns. ; when N=4, K=5, H=1, C The time domain length of P _n is 266.7us. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.6ms; when N=4, K=5, H=2, The time domain length of CP _n is 266.7us. When the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms; when N=4, K=5, H =4, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.4ms; when N=4, K=5, H =8, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.8ms; when N=4, K=5, H =16, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.6ms; when N=4, K=5, H =1, the time domain length of CP _n is 66.7us, and when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.4 ms; when N=4, K=5, H = 2, CP _n of Field length of 66.7us, when transmitting a random access signal or subcarrier spacing subcarrier bandwidth is 3.75kHz, the time domain Gap length is 0.8ms; if N = 4, K = 5, H = 4, when the CP _n The length of the domain is 66.7us. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.6ms. When N=4, K=5, H=8, CP _n The length of the domain is 66.7us. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms. When N=4, K=5, H=16, CP The time domain length of _n is 66.7us, and the time domain length of Gap is 0.4ms when the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz.

Optionally, the value of the H is determined according to at least a level of the terminal.

Optionally, the level of the terminal includes at least one of: a coverage enhancement level; a physical channel repetition transmission level; and a repeated transmission level of a message or signaling carried on the physical channel.

Optionally, the sending, by the terminal, the random access signal to the base station includes: determining, by the terminal, a random access channel for sending the random access signal; and using, by using the random access channel, the terminal The base station transmits the random access signal.

Optionally, the random access channel resource includes one or more time-frequency resource sets Set _m , wherein the Set _m includes F sub-carriers or sub-channels in the frequency domain, and has a length of at least P units in the time domain. The length, m is the index of the Set _m in the time domain, F is a positive integer, and P is a positive integer.

Optionally, the Set _m includes P subset subsets, wherein the subset is configured with the same subcarriers in the frequency domain as the Set _m , and the subset has a length of 1 Unit in the time domain.

Optionally, when the subcarrier spacing is 3.75 kHz and F=12, a 7.5 kHz protection bandwidth is configured on each of the frequency resources of the frequency resource occupied by the Set _m ; and/or when the subcarrier spacing is 3.75 kHz. When F=16, the upper and lower sidebands each reserve a 7.5 kHz protection bandwidth in the frequency resource occupied by the Set _m .

Optionally, when the uplink bandwidth includes 48 subcarriers, and F=12, the uplink bandwidth is configured with a maximum of 4 Set _m , and each Set _m includes F=12 subcarriers or subchannels in the frequency domain, and different Set _{m is} in the Subcarriers or subchannels included in the frequency domain do not overlap.

Alternatively, by the U-bit information indicating a frequency domain location of the terminal or group of terminals assigned the same level Set _m, wherein the different levels of the same terminal configuration of the frequency domain position Set _m, U = 2 or 4.

Optionally, when the uplink bandwidth includes 48 subcarriers, and F=16, the uplink bandwidth is configured with a maximum of 3 Set _m , and each Set _m includes F=16 subcarriers or subchannels in the frequency domain, and different Set _m Subcarriers or subchannels included in the frequency domain do not overlap.

Alternatively, by the U-bit information indicating a frequency domain location of the terminal or group of terminals assigned the same level Set _m, wherein the different levels of the same terminal configuration of the frequency domain position Set _m, U = 2 or 3.

Optionally, the method includes at least one of the following: when N=4, K=5, the set _m is 7 ms in the time domain, and the time domain length of the CP _n is 266.7 us, P=1. When N=4, K=5, the set _m has a length of 13 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=2; when N=8, K=5, The set _m has a length of 13 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=1; when N=4, K=5, the set _m has a length of 26 ms in the time domain. The time domain length of CP _n is 266.7us, P=4; when N=8, K=5, the length of the Set _m is 26ms in the time domain, and the time domain length of the CP _n is 266.7us, P =2; when N=4, K=5, the set _m has a length of 32 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=5; when N=4, K=5 The set _m has a length of 64 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=10; when N=8, K=5, the set _m has a length of 64 ms in the time domain. The time domain length of the CP _n is 266.7us, P=5; when N=4, K=5, the set _m is 6ms in the time domain, and the time domain length of the CP _n is 66.7u. s, P=1; when N=4, K=5, the set _m has a length of 12 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=2; when N=8, K When set to 5, the set _m has a length of 12 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=1; when N=4, K=5, the set _{m is} in the time domain. The length of the CP _n is 66.7us, P=3; when N=4, K=5, the length of the Set _m is 23ms in the time domain, and the time domain length of the CP _n 66.7us, P=4; when N=8, K=5, the set _m is 23ms in the time domain, the time domain length of the CP _n is 66.7us, P=2; when N=4 When K=5, the set _m has a length of 28 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=5; when N=4, K=5, the set _{m is} at the time The length of the domain is 34 ms, the time domain length of the CP _n is 66.7 us, P=6; when N=8, K=5, the length of the Set _m is 34 ms in the time domain, and the time of the CP _n The domain length is 66.7us, P=3.

Optionally, the method includes at least one of the following: when N=4, K=5, when the set _m is 7 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms. When N=4, K=5, when the set _m is 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=8, K=5, the When the set _m is 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=4, K=5, when the set _m is 6 ms in the time domain, the The random access channel resource includes a guard time of 0.4 ms; when N=4, K=5, when the set _m is 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms; When N=8, K=5, when the set _m has a length of 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms; when N=4, K=5, the set _m When the length in the time domain is 17 ms, the random access channel resource includes a guard time of 0.2 ms; when N=4, K=5, when the set _m is 23 ms in the time domain, the random access Letter Resources include a guard time 0.6ms; when N = 8, K = 5, said Set _m length in the time domain is 23ms, the random access channel resource comprises a guard time of 0.6ms; if N = 4, When K=5, when the set _m has a length of 34 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=8, K=5, the set _{m is} in the time domain. When the length is 34 ms, the random access channel resource includes a guard time of 0.4 ms.

Alternatively, the spacing between two adjacent time-domain Set _m V of first time units, wherein, V is an integer, the first unit of time comprises at least one of: when one or more frames of field length Time domain length of one or more subframes, Z ₁ second, Z ₂ milliseconds, time domain length of Z ₃ Set _m , time domain length of Z ₄ Units, where Z ₁ , Z ₂ , Z ₃ , Z ₄ are positive integers.

Optionally, V first time units are separated between two sets of _m adjacent to each other in the time domain, where V is an integer, and the first time unit includes a time domain length of Z ₅ subsets, where Z ₅ is A positive integer.

Optionally, the method includes at least one of the following: the value of V includes at least one of: V=0; V=2 ^y , where y is an integer greater than or equal to 0; the V first time The units are continuously distributed or discretely distributed in the time domain; the two Set _m adjacent to the time domain occupy the same F subcarriers or subchannels in the frequency domain.

Optionally, the configuration period of Set _m is L first time units, where L is a positive integer, and the first time unit includes at least one of: a time domain length of one or more frames, one or more sub- The time domain length of the frame, Z ₁ second, Z ₂ milliseconds, the time domain length of Z ₃ Set _m , the time domain length of Z ₄ Units, where Z ₁ , Z ₂ , Z ₃ , Z ₄ are positive integers .

Alternatively, Set _m arranged a first period of L time units, where, L is a positive integer, said first unit of time length field comprises a subset of Z _5, Z ₅ being a positive integer.

Alternatively, L = 2 ^z , where z is an integer greater than or equal to zero.

Optionally, the method includes at least one of: the 2 ^z first time units are continuously distributed or discretely distributed in the time domain; and the z values are {0, 1, 2, 3, 4, 5, 6 , 7}; two Set _m adjacent in the time domain occupy the same F subcarriers or subchannels in the frequency domain.

Optionally, at least _one of the subsets is configured in a configuration period of the Set _m , and an index of the subset is a subset0 to a subset (L ₁ -1), wherein a subset configuration corresponding to a terminal with a level index g The solution includes: the terminal with the level index g is configured to repeat the Repetition _g times in the time domain, and configure a continuous Repetition _g subset for the terminal with the level index g in a configuration period of the Set _m , and The starting subset index StartingSubsetIndex _g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

Optionally, the configuration of the subset corresponding to the terminal with the level index g is the same between the configuration periods of different Set _m .

Optionally, at least _one of the subsets is configured in a configuration period of the Set _m , and an index of the subset is a subset0 to a subset (L ₁ -1), wherein a subset configuration corresponding to a terminal with a level index g The solution includes: the terminal with the level index g sends the unit repeating Repetition _g times in the time domain, and configures the terminal with the level index g to consecutive consecutive ChanceNum _g ×Repetition _g subsets, where ChanceNum _g ≥1.

Optionally, in a configuration period of the Set _m , the starting subset index StartingSubsetIndex _g in the ChanceNum _g ×Repetition _g subsets is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

Alternatively, the starting index subset ChanceNum _{_g} × Repetition _g in a subset StartingSubsetIndex _g disposed ChanceNum _g of first transmission resource, wherein the first transmission resource for the Unit Repetition repeated in the time domain _G times to send.

Alternatively, the starting index of the subset of first transmission resource ChanceNum _g in the c-th first transmission resources

Calculate according to the following formula:

Optionally, at least _one of the subsets is configured in a configuration period of the Set _m , and an index of the subset is a subset0 to a subset (L ₁ -1), wherein a subset configuration corresponding to a terminal with a level index g The solution includes: the terminal with the level index g sends the unit to repeat the Repetition _g times in the time domain, and the terminal with the level index g is configured with ChanceNum _g ×Repetition _g subsets, and ChanceNum _g ≥1.

Alternatively, the configuration within a period of Set _m, the ChanceNum _{_g} × Repetition _g subset is a subset of the indices 0 to _{_{subset (ChanceNum g × Repetition g -1}} ), and start from 0 subset index contiguous Repetition _g subsets is a first sending resource, wherein the first sending resource is used by the unit to repeat Repetition _g times in the time domain, and one Repetition _g subset in the first sending resource is in the time domain. The packets are consecutively distributed, and different subsets corresponding to the first sending resource are discretely distributed in the time domain.

Optionally, the first sending resource corresponding to the terminal of the G level is included in the configuration period of the Set _m , where the first sending resource corresponding to the terminal with the level index g is used in the time domain of the unit. Repeating the Repetition _g times, the first sending resource corresponding to the terminal with the level index g is N _g

Set _m corresponding to the terminal whose index is g, 0 ≤ g ≤ G-1.

Optionally, in the configuration period of the Set _m , the terminal sequentially allocates N _g according to the rank index g from small to large.

Resources.

Optionally, N _g ≥ 1 or N _g ≥ 0, and when N _g =0, indicating that the first transmission resource corresponding to the terminal with the level index g is not configured in the configuration period of the Set _m .

Optionally, in the configuration period of the Set _m , N _g configured for the terminal with the level index _g

Two adjacent in the resource

The time domain interval is L _g second time units, where L _g ≥ 0.

Optionally, terminals of different levels of indexing have the same L _g .

Optionally, in the configuration period of the Set _m , N _g corresponding to the terminals of different levels of indexing

Between resources, the interval L _{β is} a second time unit, where L _β ≥ 0.

Between resources, the interval L _{g is} a second time unit.

Optionally, N _g corresponding to the terminal with the level index _g

The first in the resource

Time domain starting resource location with the stated

The time domain starting resource location is the same in the configuration period; or the N _g corresponding to the terminal with the level index _g

The first in the resource

Time domain starting resource location with the stated

There is an offset in the time domain starting resource location within the configuration period, wherein the offset is predetermined or configured for the base station.

Optionally, the terminals of different levels of index correspond to

the same.

Alternatively, the configuration of the cycle length D Set _m is the length of the time domain Set _m, wherein, D is a positive integer.

Optionally, D = 2 ^x , x is an integer greater than or equal to zero.

Optionally, a maximum of D*P of the subsets are configured in a configuration period of the set _m , and an index of the subset is a subset0 to a subset (D*P-1), where a terminal with a level index of g corresponds to The subset configuration scheme includes: the terminal with the level index g sends the unit to repeat the Repetition _g times in the time domain, and configures a continuous Repetition _g subset for the terminal with the level index g in a configuration period of the Set _m . And the starting subset index StartingSubsetIndex _g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

Optionally, between different configuration periods of the Set _m , the subset configuration scheme corresponding to the terminal with the level index g is the same.

Optionally, when the uplink bandwidth includes 48 subcarriers with a subcarrier spacing of 3.75 kHz, the subcarrier index is 0 to 47, where the index is 0, 1, 14, 15, 16, 17, 30, 31, The subcarriers of 32, 33, 46, 47 are not allocated to the Set _m .

Optionally, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of the Set _m is 2, the subcarrier configuration with an index of 2 to 25 is configured. Give the Set _m .

Optionally, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=36, and the initial subcarrier index of the Set _m is 2, the subcarrier configuration with an index of 2 to 37 is configured. Give the Set _m .

Optionally, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of the Set _m is 18, the subcarrier configuration with an index of 18 to 41 Give the Set _m .

Optionally, the proportion of the number of subcarriers Num occupied by the random access channel in the F subcarriers is Ratio in the F subcarriers in the Set _m , where the Ratio is sent by the base station The order is sent to the terminal.

Optionally, the value of F is {12, 24, 36, 48}.

Optionally, the value of the Ratio is {1/6, 2/6, 3/6, 4/6, 5/6, 6/6} or {1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/12, 1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/6, 1/6, 2/6, 3/6, 4/6, 5/6, 6/6}.

Optionally, among the F subcarriers in the Set _m , the number of subcarriers occupied by the random access channel for transmitting the random access signal is Num.

Optionally, the value of F is {12, 24, 36, 48}.

Optionally, the Num value is {4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48} or {3, 6, 9, 12, 15, 18, 21 , 24,27,30,33,36,39,42,45,48} or {0,4,8,12,16,20,24,28,32,36,40,44,48} or {0 , 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48}.

Optionally, the random access channel that the terminal sends the random access signal to the base station is allocated by the base station to the terminal by using signaling.

Optionally, the signaling includes at least one of the following: an initial level index; frequency domain location information of the random access channel allocated by the base station to the terminal; The time domain location information of the random access channel of the terminal.

Optionally, the frequency domain location information of the random access channel allocated by the base station to the terminal includes: a subcarrier or a subchannel index where the group ₀ of the unit that constitutes the random access signal is sent. .

Optionally, when the uplink bandwidth includes 48 subcarriers or subchannels, the 6bits indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal.

Alternatively, said information further indicating 6bits F subcarriers in the Set _m in a randomly selected sub-carrier frequency domain position as said random access channel is used to indicate the location of the terminal.

Optionally, when the Set _m includes F subcarriers or subchannels,

The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal.

Optionally, said

Indication information indicating that the terminal is further configured to F subcarriers in the Set _m in a randomly selected sub-carriers of the frequency domain position of the terminal as a random access channel is located.

Optionally, when the Set _m includes F subcarriers or subchannels,

The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal, where the Num is the number of subcarriers occupied by the random access channel.

Optionally, the time domain location information of the random access channel allocated by the base station to the terminal includes: configuration period indication information n of the second Set _m , where the base station allocates to the terminal The Set _m where the random access channel is located is defined as the second Set _m ; the second Set _m is selected from the first Set _m ; and the configuration period length of the second Set _{m is} the configuration period of the first Set _m n times, n is a positive integer; the first Set _m is one or more time-frequency resource sets Set _m , n of the random access channel resource, and n is a positive integer.

Optionally, at least one of the following is included: when the value of n is described by 3 bits, the value of n is {1, 2, 3, 4, 5, 6, 7, 8} or {1, 2, 4, 8,16,32,64,128} or {1,2,4,8,10,12,14,16}; when the value of n is described by 2 bits, the value of n is {1, 2, 3 , 4} or {1, 2, 4, 8} or {1, 4, 6, 8}.

Alternatively, the base station allocates to the time domain position of the random access channel, where the terminal is: a first configuration in a first Set _m periods of the second Set _m.

Alternatively, the base station allocates to the time domain information of the random access channel position where said terminal further comprises: a second location information Offset Set _m disposed within said second period of Set _m; wherein said n first Offset Set _m for the configuration of the second period indication Set _m, the index information allocated to the random access channel, where the first terminal of the Set _m.

Optionally, the time domain location information of the random access channel allocated by the base station to the terminal includes: two consecutive second set _m time domain interval information Interval; the base station allocates to the terminal _m is defined above the Set random access channel where the Set second _m; the second from the first to select the Set _m _m in the Set and the Set successive intervals of first _m interval between two second _m the Set; The first set _m is shown as one or more time-frequency resource sets Set _m included in the random access channel resource.

Optionally, the signaling further includes: triggering positioning operation indication information.

Optionally, when the trigger positioning operation indication information is a trigger positioning operation, the terminal sends the random access signal on the random access channel allocated by the signaling.

Optionally, after the terminal sends the random access signal to the base station, the method further includes: receiving, by the terminal, the random connection sent by the base station after detecting the random access signal according to the detection result. And a response message, where the random access response message includes at least one of the following information: subcarrier spacing indication information; configured subcarrier number indication information.

Optionally, the subcarrier spacing indication information and the configured subcarrier number indication information are indicated by a joint coding manner.

According to another aspect of the present invention, an access processing apparatus is provided, the apparatus being applied to a terminal, including: selecting And the generating module is configured to select a sequence corresponding to the terminal in the sequence set; the generating module is configured to generate a random access signal according to at least the corresponding sequence; and the sending module is configured to send the random access signal to the base station.

According to the present invention, when the terminal generates a random access signal for accessing the base station, it selects a sequence corresponding to the terminal itself to generate, so that the random access signal is a characteristic (eg, type) of the terminal to be accessed. It is matched to ensure that different types of terminals can successfully access the system, thereby solving the problem that the related technologies cannot guarantee that various types of terminals can successfully access the system, thereby realizing various types of terminals. The ability to successfully access the system.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of an access processing method according to an embodiment of the present invention;

2 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 1 of the present invention;

3 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 1 of the present invention;

4 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 2 of the present invention;

5 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 2 of the present invention;

6 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 3 of the present invention;

7 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 3 of the present invention;

8 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 4 of the present invention;

9 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 4 of the present invention;

Figure 10 is a diagram showing a bitmap indication of Set _m according to a fourth embodiment of the present invention;

11 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 5 of the present invention;

Figure 12 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to a fifth embodiment of the present invention;

13 is a schematic diagram showing the interval between two sets of adjacent time-frequency resources, Set _m and Set _m+1 , according to Embodiment 5 of the present invention;

14 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 6 of the present invention;

15 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 6 of the present invention;

16 is a schematic diagram of a configuration period of a time-frequency resource set Set _m according to Embodiment 6 of the present invention;

17 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 7 of the present invention;

Figure 18 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to a seventh embodiment of the present invention;

19 is a schematic diagram of Set _m configured in Vms according to Embodiment 7 of the present invention;

20 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 8 of the present invention;

21 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 8 of the present invention;

22 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 9 of the present invention;

23 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 9 of the present invention;

24 is a schematic diagram of allocation of consecutive Repetition _g subsets for a terminal with a level index of g according to a specific embodiment 9 of the present invention;

25 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to a tenth embodiment of the present invention;

26 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 10 of the present invention;

27 is a schematic diagram of allocation of consecutive Repetition _g subsets for a terminal with a level index of g according to a tenth embodiment of the present invention;

28 is a two-dimensional structural diagram of a time domain and a frequency domain of a basic unit of a random access signal according to Embodiment 11 of the present invention;

29 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 11 of the present invention;

30 is a schematic diagram of resource allocation for transmitting a random access signal by a terminal with a level index of g according to Embodiment 11 of the present invention;

31 is a two-dimensional structural diagram of a time domain and a frequency domain of Set _m according to Embodiment 12 of the present invention;

Figure 32 is a structural diagram of a GT 2 according to a specific embodiment 13 of the present invention;

33 is a schematic diagram of a 64-time repeated transmission structure of a basic unit of a Preamble according to Embodiment 13 of the present invention;

Figure 34 is a structural diagram of a GT 2 according to a specific embodiment 14 of the present invention;

35 is a schematic diagram of a 64-time repeated transmission structure of a basic unit of a Preamble according to Embodiment 14 of the present invention;

36 is a structural diagram of a Subcarrior sent by a terminal selection group according to Embodiment 15 of the present invention;

37 is a structural diagram of a Subcarrior transmitted by a terminal selection group according to a specific embodiment 16 of the present invention;

FIG. 38 is a block diagram showing the structure of an access processing apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

An access processing method is provided in this embodiment. FIG. 1 is a flowchart of an access processing method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102, the terminal selects a sequence corresponding to the terminal in the sequence set;

Step S104: The terminal generates a random access signal according to at least a corresponding sequence.

Step S106, the terminal sends the random access signal to the base station.

The sequence corresponding to the terminal may be a sequence corresponding to the type of the terminal. Because the terminal has multiple types, the terminal may select a random connection according to its own type feature when performing random access. a sequence of incoming signals. Therefore, before performing random access, the terminal may select a sequence corresponding to itself from a sequence set consisting of multiple sequences, and generate a corresponding random access signal, and access the system accordingly. The above-mentioned base station) solves the problem that the related technologies cannot ensure that all types of terminals successfully access the system, thereby achieving the effect that various types of terminals can successfully access the system.

In an optional embodiment, the sequence set includes a sequence of J sequences having a length of N, wherein the sequence of the index of j is expressed as

J is a positive integer and N is a positive integer.

In an optional embodiment, the sequence set includes R sequence subsets, that is, R sequence subsets in which J sequences included in the sequence set are divided, and R sequence subsets can be configured. Give a different set of terminals, where R is a positive integer.

In the above step S102, when the terminal selects a sequence corresponding to the terminal in the sequence set, the terminal may adopt the following selection manner: the terminal determines a sequence subset corresponding to the terminal set to which the terminal belongs by the terminal from the R sequence subsets; A sequence is selected in the sequence sub-set as the corresponding sequence. Optionally, when there is only one sequence in the sequence subset determined by the terminal, the terminal selects the one sequence in the sequence subset as the corresponding sequence; when there are multiple sequences in the sequence subset determined by the terminal, The terminal randomly selects a sequence from the determined sequence subset as a corresponding sequence; wherein R is a positive integer. In this embodiment, the foregoing sequence set may be divided into R sequence sub-sets. Therefore, when selecting a sequence corresponding to the terminal, the terminal may first select a sequence sub-set that is configured for the terminal set to which the terminal belongs, and then A corresponding sequence is selected from the selected subset of sequences.

In an optional embodiment, the determining, by the terminal, the sequence subset corresponding to the terminal set to which the terminal belongs from the R sequence subsets includes: the terminal selecting the (Y+1)th sequence from the R sequence subsets The sub-set is a sequence sub-set corresponding to the terminal set to which the user belongs, where Y=Mod (Cell ID, R), and the Cell ID is a cell identity index accessed by the terminal. In this embodiment, the base station may configure a subsequence for the terminal set to which the terminal belongs, in combination with the Mod (Cell ID, R) described above as a remnant algorithm, that is, Y is a remainder obtained by dividing the Cell ID by R.

In an optional embodiment, the R sequence subsets may be respectively configured to R different terminal sets, that is, the sequence subset and the terminal set are in one-to-one correspondence. Of course, in an application, a sequence of sub-sets and terminal sets may also be a many-to-one or one-to-many relationship.

In an optional embodiment, the terminal set may be divided into multiple modes. The following describes different terminal set division modes:

When the number of terminal sets is 2, the two different terminal sets are the first terminal set and the second terminal set, and the first terminal set and the second terminal set satisfy at least one of the following conditions: the terminal included in the first terminal set A terminal that supports simultaneous transmission of multiple subcarriers, and the terminal included in the second terminal set is a terminal that supports only one subcarrier transmission; the terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data, and the second terminal The terminal included in the set is a terminal that transmits uplink data by using a single subcarrier; the terminal included in the first terminal set is a terminal that simultaneously transmits an Msg3 message by using multiple subcarriers, and the terminal included in the second terminal set transmits the Msg3 message by using a single subcarrier. The terminal included in the first terminal set is a terminal that transmits the Msg3 message on the multiple subcarriers, and the terminal included in the second terminal set is that the Msg3 message is only carried in the terminal of the single subcarrier transmission; the first terminal set includes a terminal support and a single sub-carrier transmission subcarrier spacing f _sc1 terminal, the second terminal sets Comprising a terminal support and a single sub-carrier transmission subcarrier spacing f _sc2 terminal; a first set of terminals including a terminal for the use of a single subcarrier for transmitting uplink data and the subcarrier spacing f _sc1 terminal; a second set of terminals included The terminal is a terminal that uses a single subcarrier to transmit uplink data and has a subcarrier spacing of f _sc2 ; the terminal included in the first terminal set is a terminal that transmits an Msg3 message by using a single subcarrier and has a subcarrier spacing of f _sc1 , and the second terminal set includes The terminal is a terminal that uses a single subcarrier to transmit an Msg3 message and the subcarrier spacing is f _sc2 . The terminal included in the first terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the second terminal is set. The terminal included is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc2 ; the terminal included in the first terminal set is a terminal in which the amount of information carried in the Msg3 message is Size1, and the second terminal set includes The terminal is a terminal that carries the amount of information in the Msg3 message is Size2, where Size1 is not equal to Size2;

When the number of terminal sets is 3, the three different terminal sets are the first terminal set, the second terminal set, and the third terminal set, and the first terminal set, the second terminal set, and the third terminal set satisfy at least the following conditions: The first terminal set includes terminals that support simultaneous transmission of multiple subcarriers, and the second terminal set includes terminals that support only a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the third terminal set includes terminals. A terminal that supports only a single subcarrier transmission and has a subcarrier spacing of f _sc2 ; the terminal included in the first terminal set is a terminal that transmits uplink data by using multiple subcarriers, and the terminal included in the second terminal set transmits uplink data by using a single subcarrier. And the terminal with the subcarrier spacing is f _sc1 ; the terminal included in the third terminal set is a terminal that uses one subcarrier to transmit uplink data and the subcarrier spacing is f _sc2 ; the terminal included in the first terminal set is to transmit the Msg3 message by using multiple subcarriers. Terminal, the second terminal set includes terminals for transmitting Msg3 messages by using a single subcarrier and the subcarrier spacing is f The terminal of the _sc1 , the terminal included in the third terminal set is a terminal that transmits the Msg3 message by using a single subcarrier and the subcarrier spacing is f _sc2 ; the terminal included in the first terminal set is a terminal that the Msg3 message carries on the multiple subcarriers, The terminal included in the second terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc1 , and the terminal included in the third terminal set is that the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f _sc2. The terminal included in the first terminal set is a terminal that has the information amount of the S1 in the Msg3 message, and the terminal in the second terminal set is a terminal that has the information amount of the S2 in the Msg3 message, and the third terminal set includes The terminal is a terminal that carries information in the Msg3 message with a size of Size3, where Size1, Size2, and Size3 are not equal to each other;

When the number of terminal sets is 4, the four different terminal sets are a first terminal set, a second terminal set, a third terminal set, and a fourth terminal set, and the first terminal set, the second terminal set, and the third terminal set. And the fourth terminal set satisfies at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers and the subcarrier spacing is f _sc1 , and the terminal included in the second terminal set supports simultaneous transmission of multiple subcarriers. And the terminal with the subcarrier spacing is f _sc2 , the terminal included in the third terminal set is a terminal that supports only a single subcarrier transmission and the subcarrier spacing is f _sc3 , and the terminal included in the fourth terminal set supports only a single subcarrier transmission and the sub The terminal with the carrier spacing is f _sc4 ; the terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data and the subcarrier spacing is f _sc1 , and the second terminal set includes terminals that use multiple subcarriers to transmit uplink data and carrier spacing for f _sc2 set includes a terminal, a third terminal is a terminal using a single subcarrier, and the subcarrier for transmitting uplink data between F _sc3 terminal; and a fourth set of terminals including a terminal for the use of a single subcarrier for transmitting uplink data and the subcarrier spacing f _sc4 terminal; a first set of terminals including a terminal using a plurality of sub-carrier transmission and the subcarrier spacing message Msg3 For the terminal of the f _sc1 , the terminal included in the second terminal set is a terminal that transmits the Msg3 message by using multiple subcarriers and the subcarrier spacing is f _sc2 , and the terminal included in the third terminal set transmits the Msg3 message by using a single subcarrier and the subcarrier spacing For the terminal of the f _sc3 , the terminal included in the fourth terminal set is a terminal that transmits the Msg3 message by using a single subcarrier and the subcarrier spacing is f _sc4 ; the terminal included in the first terminal set is the Msg3 message bearer transmitted on multiple subcarriers and the sub The terminal with the carrier spacing is f _sc1 , and the terminal included in the second terminal set is a terminal that transmits the Msg3 message on multiple subcarriers and the subcarrier spacing is f _sc2 , and the terminal included in the third terminal set is that the Msg3 message is only carried in a single sub A terminal that transmits a carrier and has a subcarrier spacing of f _sc3 , and the terminal included in the fourth terminal set is a Msg3 message that is only carried in a single subcarrier. A terminal that transmits a wave and has a subcarrier spacing of f _sc4 ; the terminal included in the first terminal set is a terminal that carries information in the Msg3 message is Size1, and the terminal included in the second terminal set is that the amount of information carried in the Msg3 message is Size2 The terminal includes a terminal that is a terminal that has a quantity of information carried in the Msg3 message, and a terminal that is included in the fourth terminal set is a terminal that has an information amount of Size4 in the Msg3 message, where Size1, Size2, Size3 Size4 is not equal to each other. It should be noted that the foregoing several terminal set division manners are only a few examples, and other reasonable division manners may also be used to divide the terminal set. In the above embodiment, the values of f _sc1 and f _{sc2 are} different. For example, f _sc1 can take a value of 15 kHz, and f _sc2 can take a value of 3.75 kHz; the above f _sc3 and f _{sc4 have} different values, for example, f _sc3 can be The value is 15 kHz, and f _sc4 can be 3.75 kHz.

In an optional embodiment, the types of the J sequences in the sequence set may be multiple. The following describes the types of the sequences in the sequence set: the sequence of the J sequences whose lengths are all N meets the following At least one of the J sequences having a length of N is an orthogonal codeword sequence; the sequence of J sequences having a length of N is a quasi-orthogonal codeword sequence; and the sequence of J sequences having a length of N is predefined. sequence. In this embodiment, the predefined sequence includes an all-one sequence of length N, or a sequence of all As of length N, which may be a positive integer.

In an alternative embodiment, the above

In an optional embodiment, the value of N may be one of the following: 2, 4, 6, and 8.

The following is an example of each sequence in a sequence set:

Wherein one of Code ₀ and Code ₁ is configured to the terminal in the first terminal set, and the other is configured to the terminal in the second terminal set;

When R=3, J=3, and N=4, the sequence of J sequences of length N includes at least one of the following:

Any three of them;

Any three of them; wherein three sequences of sequence length N are respectively allocated to terminals in three terminal sets, that is, three sequences of sequence length N and three terminal sets can be configured in any one-to-one combination ;

When R=4, J=4, and N=4, the sequence of J sequence lengths of N includes at least one of the following:

The four sequences of length N are respectively allocated to the terminals in the four terminal sets, that is, four sequences of sequence length N and four terminal sets can be configured in any one-to-one combination;

C is a constant,

In an optional embodiment, when the sequence corresponding to the terminal is

And generating, by the terminal, the random access signal according to the corresponding sequence at least: the terminal determines the subcarrier with the index f _n in the frequency domain, and occupies consecutive K symbol transmissions in the time domain.

The frequency domain expression of the above K symbols and the signal transmitted on the subcarrier f _n is

Where 0 ≤ k ≤ K-1; the above terminal is based at least

Determine the random access signal.

In an optional embodiment, the foregoing terminal is based at least according to

Determining the random access signal includes:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol,

Corresponding time domain

The expression is

The time domain expression is

The terminal is based at least on the above

Determine the random access signal.

Determining the random access signal includes: the terminal generates a cyclic prefix CP _n according to the following formula, CP _n ={S _n [QK-L+1],...,S _n [QK]}, where L represents a time domain included in the CP _n The number of sampling intervals T _s ; then the expression of the random access signal transmitted by the terminal on the subcarrier f _n is Group _n = {CP _n , S _n }, and the terminal is in the subcarriers f ₀ , f ₁ , ..., f _N The expression of the random access signal transmitted on _-1 is {Group ₀ , Group ₁ , ... Group _N-1 }; wherein Group _{n with} different values of _n occupy different symbols in the time domain.

In an optional embodiment, the group ₀ to the group _N-1 are the unit units constituting the random access signal, and the terminal sending the random access signal to the base station includes: the terminal determines that a unit is a random access signal, and The random access signal is repeated H times for transmission; and/or, the terminal repeats the unit H times in the time domain to form a random access signal, and transmits the random access signal.

In an optional embodiment, after the terminal sends the random access signal Group _n on the sub-carrier f _n , the interval of the time length Gap needs to be introduced, where the terminal is no longer in the interval of the Gap interval. The random access signal after the group _n is sent, and the terminal continues to send the random access signal after the group _n after the interval of the time length Gap.

In an optional embodiment, when N=4, K=5, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time of the Gap is The length of the domain is 0.4 ms; and/or, when N=4, K=5, the time domain length of CP _n is 66.7 us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the above Gap The time domain length is 0.6 ms; and/or, when N=4, K=5, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75 kHz, Gap The time domain length is 12288*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, the time domain length of CP _n is 2048*Ts, the subcarrier spacing of the random access signal is transmitted or When the subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55 ns.

In an optional embodiment, the H repetitions of the above unit include Y groups (Y groups are Group ₀ to Group _N-1 , Group ₀ to Group _N-1 , Group ₀ to Group _N-1, ...) , a total of H times), you can define the index of Y groups as Group ₀ ~ Group _Y-1 , where Y = H * N; when the terminal completes Group _start to Group _{end a} total of y Group (y group index After the transmission of the random access signal, which may be continuous, it is necessary to introduce an interval of time Gap, wherein the terminal no longer transmits a random access signal in the interval of time Gap, and the terminal is at the time The random access signal after the group _{end is} transmitted after the interval of the gap of Gap; wherein 0≤start≤end≤Y-1, y≤Y.

In an optional embodiment, start=offset+y×N _gap , where N _gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first group _start ; or, start = y × N _gap , where N _gap is the number of intervals in which the introduction time length is Gap.

In an alternative embodiment,

or

Or N _gap = Y / y.

In an alternative embodiment, end = start + y-1.

In an optional embodiment, the Gap satisfies at least one of the following conditions: y×L_G+Gap=T×TimeUnit, where L_G is the length of the group, Gap≥0, T is a positive integer, and TimeUnit is a type. The unit of measurement of the length of time; y × L_G + Gap = T × TimeUnit, where L_G is the length of the Group, Gap ≥ 0, T is a positive integer and T is the minimum value of T × TimeUnit > y × L_G, TimeUnit is a The unit of measure of the length of time. In this embodiment, the TimeUnit may be seconds, milliseconds, microseconds, nanoseconds, frames, subframes, slots.

In an optional embodiment, after the terminal sends a random access signal of a unit, the terminal needs to be introduced. The time interval is the gap of the gap, wherein the terminal does not send the random access signal after the unit in the interval where the time is Gap, and the terminal continues to send the random access signal after the unit after the interval of the time length of Gap.

In an optional embodiment, when N=4, K=5, the time domain length of CP _n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain of Gap The length is 0.6ms; and/or, when N=4, K=5, the time domain length of CP _n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain of Gap The length is 0.4ms; and/or, when N=4, K=5, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time of Gap The length of the field is 18432*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier of the random access signal is transmitted. When the bandwidth is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns.

In an optional embodiment, the index of the H repetitions of the above unit is defined as Unit ₀ to Unit _H-1 , and the terminal completes the unit _start to the unit _{end by a} total of y units (the index numbers of the y units may be consecutive) After the random access signal is sent, the interval of the time length Gap needs to be introduced, wherein the terminal does not send the random access signal during the time interval of the gap, and the terminal continues to send after the interval of the time length of Gap. Random access signal after unit _end ; where 0≤start≤end≤Y-1, y≤Y.

In an optional embodiment, start=offset+y×N _gap , where N _gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first unit _start ; or, start = y × N _gap , where N _gap is the number of intervals in which the introduction time length is Gap.

In an alternative embodiment,

or

Or N _gap = Y / y.

In an alternative embodiment, end = start + y-1.

In an optional embodiment, the Gap satisfies at least one of the following conditions: y×L_U+Gap=T×TimeUnit, where L_G is the length of time of the unit, gap≥0, T is a positive integer, and TimeUnit is a type. The unit of measurement of the length of time; y × L_U + Gap = T × TimeUnit, where L_G is the length of time of Unit, Gap ≥ 0, T is a positive integer and T is the minimum value of T × TimeUnit > y × L_U, TimeUnit is A measure of the length of time. In this embodiment, the TimeUnit may be seconds, milliseconds, microseconds, nanoseconds, frames, subframes, slots.

In an optional embodiment, when N=4, K=5, H=1, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75 kHz. The time domain length of Gap is 18432*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 8192*Ts, and random access is sent. When the subcarrier spacing or subcarrier bandwidth of the signal is 3.75 kHz, the time domain length of Gap is 6144*Ts or 36864*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H= 4. The time domain length of CP _n is 8192*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; and / Or, when N=4, K=5, H=8, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=16, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or sub-send of the random access signal is transmitted. When the carrier bandwidth is 3.75kHz, the time domain of Gap is long. To 18432 * Ts, where, Ts = 32.55ns; and / or, if N = 4, K = 5, H = 1, the length of the time domain CP _n is 2048 * Ts, transmitting a random access signal or subcarrier spacing When the subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 2048. *Ts, when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; and/or, when N=4, K=5 , H=4, the time domain length of CP _n is 2048*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55 ns. And/or, when N=4, K=5, H=8, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, Gap time The length of the field is 6144*Ts or 36864*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=16, the time domain length of CP _n is 2048*Ts, and random access is sent. When the subcarrier spacing or subcarrier bandwidth of the signal is 3.75 kHz, The time domain length of Gap is 12288*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=1, the time domain length of CP _n is 266.7us, and the random access signal is transmitted. When the subcarrier spacing or subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 0.6 ms; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 266.7us, and the transmission is random. When the subcarrier spacing or subcarrier bandwidth of the access signal is 3.75 kHz, the time domain length of Gap is 0.2 ms or 1.2 ms; and/or, when N=4, K=5, H=4, the time domain of CP _n The length is 266.7us. When the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75kHz, the time domain length of Gap is 0.4ms; and/or, when N=4, K=5, H=8, CP The time domain length of _n is 266.7us, and the time domain length of Gap is 0.8ms when the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz; and/or, when N=4, K=5, H =16, the time domain length of CP _n is 266.7us, and the time domain length of Gap is 0.6ms when the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz; and/or, when N=4, K =5, H=1, the time domain length of CP _n is 66.7us When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.4 ms; and/or, when N=4, K=5, H=2, the time domain of CP _n The length is 66.7us. When the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75kHz, the time domain length of Gap is 0.8ms; and/or, when N=4, K=5, H=4, CP The time domain length of _n is 66.7us, and when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.6 ms; and/or, when N=4, K=5, H =8, the time domain length of CP _n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms; and/or when N= 4, K=5, H=16, the time domain length of CP _n is 66.7us, and the sub-carrier spacing or sub-carrier bandwidth of the random access signal is 3.75 kHz, and the time domain length of Gap is 0.4 ms.

In an optional embodiment, the value of the above H is determined according to at least the level of the terminal, that is, the H corresponding to the terminals of different levels may be different.

In an optional embodiment, the level of the foregoing terminal may include at least one of the following: an coverage enhancement level; a physical channel repetition transmission level; and a repeated transmission level of a message or signaling carried on the physical channel.

In an optional embodiment, the sending, by the terminal, the random access signal to the base station includes: determining, by the terminal, a random access channel for transmitting the random access signal; and transmitting, by the terminal, the random access signal to the base station by using a random access channel. In this embodiment, the random access channel used by the terminal to perform random access signal transmission may be part of a random access channel resource, and the random access channel resource may include multiple random accesses for different terminals. A random access channel for signal transmission.

In an optional embodiment, the random access channel resource includes one or more time-frequency resource sets Set _m , where the set _m includes F sub-carriers or sub-channels in the frequency domain, and the length is at least in the time domain. For the length of P units, m is the index of Set _m in the time domain, F is a positive integer, and P is a positive integer. In this embodiment, the random access channel resource may include a random access channel in which multiple terminals send random access signals, and the foregoing set _m may be used by one terminal or may be used by multiple terminals. Or multiple Set _m are used by one terminal.

In an optional embodiment, the Set _m includes P subset subsets, wherein the subset is configured with the same subcarriers in the frequency domain as the Set _m , and the subset has a length of 1 Unit in the time domain.

In an optional embodiment, the protection bandwidth is configured before and after the frequency resource occupied by the Set _m , and/or the protection bandwidth is configured on the upper and lower sides of the frequency resource occupied by the Set _m . The following describes the protection bandwidth of the frequency resource configuration occupied by Set _m :

When the subcarrier spacing is 3.75 kHz, F=12, the 7.5 kHz protection bandwidth is configured on the frequency resources before and after the frequency resource occupied by Set _m ; and/or, when the subcarrier spacing is 3.75 kHz, F=16, In the frequency resource occupied by Set _m , the upper and lower sidebands each have a reserved bandwidth of 7.5 kHz.

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers, and F=12, the uplink bandwidth is configured with a maximum of 4 Set _m , and each Set _m includes F=12 subcarriers or subchannels in the frequency domain. The subcarriers or subchannels included in the frequency domain of different Set _m do not overlap.

Optionally, the frequency domain positions of the Set _m allocated to the terminal or the terminal group of the same level may be indicated by the U bit information, where the frequency domain positions of the Set _m configured by the different levels are the same, U=2 or 4 .

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers, and F=16, the uplink bandwidth is configured with a maximum of 3 Set _m , and each Set _m includes F=16 subcarriers or subchannels in the frequency domain. The subcarriers or subchannels included in the frequency domain of different Set _m do not overlap.

Optionally, the frequency domain locations of the Set _m allocated to the terminal or the terminal group of the same level may be indicated by the U bit information, where the frequency domain locations of the Set _m configured by the different levels are the same, U=2 or 3 .

In an optional embodiment, the foregoing method may include at least one of the following: when N=4, K=5, the set _m is 7 ms in the time domain, and the time domain length of the CP _n is 266.7. Us, P=1; when N=4, K=5, the set _m is 13ms in the time domain, the time domain length of the CP _n is 266.7us, P=2; when N=8, K When set to 5, the set _m has a length of 13 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=1; when N=4, K=5, the set _{m is} in the time domain. The length of the CP _n is 266.7us, P=4; when N=8, K=5, the length of the Set _m is 26ms in the time domain, and the time domain length of the CP _n 266.7us, P=2; when N=4, K=5, the set _m has a length of 32ms in the time domain, the time domain length of the CP _n is 266.7us, P=5; when N=4 When K=5, the set _m has a length of 64 ms in the time domain, the time domain length of the CP _n is 266.7 us, P=10; when N=8, K=5, the set _{m is} at the time The length of the domain is 64 ms, the length of the time domain of the CP _n is 266.7us, P=5; when N=4, K=5, the length of the Set _m is 6 ms in the time domain, The time domain length of CP _n is 66.7us, P=1; when N=4, K=5, the length of the Set _m in the time domain is 12ms, and the time domain length of the CP _n is 66.7us, P= 2; when N=8, K=5, the set _m has a length of 12 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=1; when N=4, K=5, The set _m has a length of 17 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=3; when N=4, K=5, the set _m has a length of 23 ms in the time domain. The time domain length of the CP _n is 66.7us, P=4; when N=8, K=5, the set _m is 23ms in the time domain, and the time domain length of the CP _n is 66.7us. P=2; when N=4, K=5, the set _m has a length of 28 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=5; when N=4, K=5 The set _m has a length of 34 ms in the time domain, the time domain length of the CP _n is 66.7 us, P=6; when N=8, K=5, the length of the Set _m in the time domain is 34ms, the time domain length of the CP _n is 66.7us, P=3.

In the foregoing embodiment, when N=4, K=5, when Set _m is 7 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms; when N=4, K=5 When Set _m has a length of 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=8, K=5, when Set _{m is} 26 ms in the time domain, the random connection is performed. The inbound channel resource includes a guard time of 0.4 ms; when N=4, K=5, when the set _m is 6 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=4, K =5, when Set _m is 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms; when N=8, K=5, when Set _m is 12 ms in the time domain, the above The random access channel resource includes a guard time of 0.8 ms; when N=4, K=5, when the set _{m is} 17 ms in the time domain, the random access channel resource includes a guard time of 0.2 ms; when N=4 , K = 5 when, Set _m of length 23ms in time domain, the random access channel resource comprises a guard time of 0.6ms; if N = 8, K = 5 when, Set _m in Domain length is 23ms, the random access channel resource comprises a guard time of 0.6ms; when N = 4, K = 5 when, Set _m length in the time domain is 34ms, the random access channel resource comprises 0.4ms The guard time; when N=8, K=5, when the set _m is 34 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms.

In an alternative embodiment, a first time interval of a V-domain unit time between two adjacent Set _m, wherein, V is an integer, the first unit of time comprises at least one of the following: one or more The time domain length of the frame, the time domain length of one or more subframes, Z ₁ second, Z ₂ milliseconds, the time domain length of Z ₃ Set _m , the time domain length of Z ₄ Units, and the time domain of Z ₅ subsets The length, wherein Z ₁ , Z ₂ , Z ₃ , Z ₄ , and Z ₅ are all positive integers.

In the above embodiment, at least one of the following may be included: the value of V includes at least one of the following: V=0; V=2 ^y , where y is an integer greater than or equal to 0; V first time units are The time domain is continuously distributed or discretely distributed; two Set _m adjacent in the time domain occupy the same F subcarriers or subchannels in the frequency domain.

In an optional embodiment, the configuration period of the Set _m is L first time units, where L is a positive integer, and the first time unit includes at least one of: a time domain length of one or more frames Time domain length of one or more subframes, Z ₁ second, Z ₂ milliseconds, time domain length of Z ₃ Set _m , time domain length of Z ₄ Units, time domain length of Z ₅ subsets, where Z ₁ , Z ₂ , Z ₃ , Z ₄ , and Z ₅ are all positive integers.

In an alternative embodiment, L = 2 ^z , where z is an integer greater than or equal to zero.

In the above embodiment, 2 ^z first time units are continuously distributed or discretely distributed in the time domain; z is taken as {0, 1, 2, 3, 4, 5, 6, 7}; time domain adjacent Two Set _m occupy the same F subcarriers or subchannels in the frequency domain.

In an optional embodiment, at most L ₁ subsets are configured in the configuration period of the Set _m , and the index of the subset is subset 0 to subset (L ₁ -1), wherein the terminal with the level index g corresponds to The subset configuration scheme includes: the terminal with the level index g transmits the Repetition _g times in the time domain, and configures consecutive Repetition _g subsets for the terminal with the level index g in the configuration period of a Set _m , and starts The subset index StartingSubsetIndex _g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals. Optionally, in this embodiment, G may also be the number of levels of terminals that need to configure resources in Set _m . The above G may each be 1.

In an optional embodiment, the configuration of the subset corresponding to the terminal with the level index g is the same between the configuration periods of different Set _m .

In an optional embodiment, at most L ₁ subsets are configured in the configuration period of the Set _m , and the index of the subset is subset 0 to subset (L ₁ -1), wherein the subset corresponding to the terminal with the level index g is The configuration scheme includes: the terminal with the level index g sends the Unit repeating Repetition _g times in the time domain, and configures the consecutive ChanceNum _g ×Repetition _g subsets for the terminal with the level index g, where ChanceNum _g ≥1.

In an optional embodiment, in a configuration period of Set _m , the starting subset index StartingSubsetIndex _g in ChanceNum _g ×Repetition _g subsets can be calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals. Optionally, the foregoing G may be the number of levels of terminals configured by the base station, or may be the number of levels of terminals that send random access signals on the Set _m resource. Optionally, in this embodiment, G may also be the number of levels of terminals that need to configure resources in Set _m . The above G may each be 1.

In an optional embodiment, the starting subset index is ChanceNum _g ×Repetition _g subsets of StartingSubsetIndex _g , and is configured with ChanceNum _g first sending resources, where the first sending resource is used for Unit in the time domain. Repeat Repetition _g times, that is, Unit repeats Repetition _g times in the time domain and can be executed on the first resource.

In an alternative embodiment, the above-described ChanceNum _g of first transmission resources in the c-th starting index of the first subset of transmission resources

It can be calculated according to the following formula:

In an optional embodiment, at most L ₁ subsets are configured in the configuration period of the Set _m , and the index of the subset is subset 0 to subset (L ₁ -1), wherein the terminal with the level index g corresponds to The subset configuration scheme includes: the terminal with the level index g sends the Unit repeating Repetition _g times in the time domain, and the terminal with the level index g is configured with ChanceNum _g ×Repetition _g subsets, and ChanceNum _g ≥1.

In an alternative embodiment, in a configuration cycle of Set _m, ChanceNum _{_g} × Repetition _g subset is a subset of the indices 0 to _{_{subset (ChanceNum g × Repetition g -1}} ), and starts from the subset 0, continuous index The Repetition _g subset is a first transmission resource, wherein the first transmission resource is used for the Unit to repeat the Repetition _g transmission in the time domain, and the Repetition _g subsets in the first transmission resource are continuously distributed in the time domain. The subsets corresponding to different first transmission resources are discretely distributed in the time domain.

In an optional embodiment, the first sending resource corresponding to the terminals of the G levels is included in the configuration period of the Set _m , wherein the first sending resource corresponding to the terminal with the level index g is used for the Unit in the time domain. Repeating the Repetition _g times, the first sending resource corresponding to the terminal with the level index g is N _g

Set _m corresponding to the terminal whose index is g, 0 ≤ g ≤ G-1.

In an optional embodiment, during the configuration period of the Set _m , the terminal sequentially allocates N _g according to the rank index g from small to large.

Resources.

In an optional embodiment, N _g ≥ 1 or N _g ≥ 0, and when N _g =0, it indicates that the first transmission resource corresponding to the terminal with the level index g is not configured in the configuration period of Set _m .

In an optional embodiment, N _g configured for the terminal with the level index g in the configuration period of Set _m

Two adjacent in the resource

The time domain interval is L _g second time units, where L _g ≥ 0.

In an alternative embodiment, the same index different levels corresponding to the terminal L _g.

In an optional embodiment, in the configuration period of the Set _m , the N _g corresponding to the terminals of different levels of indexing

Between resources, the interval L _{β is} a second time unit, where L _β ≥ 0. Wherein, N _g of terminals corresponding to different levels of indexing

The interval between resources L _β second time units refers to the corresponding level of a terminal

The resource corresponds to another level of terminal

The interval between resources is L _β second time units.

In an optional embodiment, in the configuration period of Set _m , N _g of terminals corresponding to different levels of indexing

Between resources, the interval L _{g is} a second time unit.

In an optional embodiment, the first time unit and the second time unit may be the same or different.

In an optional embodiment, the N _g corresponding to the terminal whose rank index is g

The first in the resource

Time domain starting resource location with the stated

The first in the resource

Time domain starting resource location with the stated

In an optional embodiment, terminals of different levels of index correspond to

the same.

The length of the time domain In an alternative embodiment, the length of the arrangement period of the D Set _m Set _m, wherein, D is a positive integer.

In an alternative embodiment, D = 2 ^x and x is an integer greater than or equal to zero.

In an optional embodiment, a maximum of D*P subsets are configured in the configuration period of the Set _m , and an index of the subset is a subset 0 to a subset (D*P-1), where the terminal with a level index of g corresponds to The subset configuration scheme includes: the terminal with the level index g is configured to repeat the Repetition _g times in the time domain, and configure a continuous Repetition _g subset for the terminal with the level index g in a configuration period of the set _m , and The starting subset index StartingSubsetIndex _g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers with a subcarrier spacing of 3.75 kHz, the subcarrier index is 0 to 47, where the index is 0, 1, 14, 15, 16, 17, The subcarriers of 30, 31, 32, 33, 46, 47 are not configured for Set _m .

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of the Set _m is 2, the index is 2-25. The subcarriers are configured for the Set _m . The meaning of "to" means "to". For example, the subcarriers with an index of 2 to 25 are 24 subcarriers whose indices are from 2 to 25. The following embodiments are similar and will not be described again.

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=36, and the initial subcarrier index of the Set _m is 2, the index is 2 to 37. The subcarriers are configured for the Set _m .

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of Set _m is 18, the index is 18 to 41. The carrier is configured to the Set _m .

In an optional embodiment, among the F subcarriers in the Set _m , the ratio of the number of subcarriers Num occupied by the random access channel in the F subcarriers is Ratio, wherein the Ratio is sent by the base station to the signaling. The terminal.

In an alternative embodiment, the value of F above is {12, 24, 36, 48}.

In an optional embodiment, the value of the Ratio is {1/6, 2/6, 3/6, 4/6, 5/6, 6/6} or {1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/12, 1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/6, 1/6, 2/6, 3/6, 4/6, 5/6, 6/6}.

In an optional embodiment, among the F subcarriers in the Set _m , the number of subcarriers occupied by the random access channel for transmitting the random access signal is Num.

In an alternative embodiment, the value of F above is {12, 24, 36, 48}.

In an optional embodiment, the value of Num is {4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48} or {3, 6, 9, 12, 15 ,18,21,24,27,30,33,36,39,42,45,48} or {0,4,8,12,16,20,24,28,32,36,40,44,48 } or {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48}.

In an optional embodiment, the random access channel that the terminal sends a random access signal to the base station is allocated by the base station to the terminal by using signaling. In this embodiment, the signaling may include at least one of: signaling for a single terminal, signaling for a single terminal in a connected state, and signaling transmitted on a control channel.

In an optional embodiment, the signaling includes at least one of the following: a starting level index; frequency domain location information of the random access channel allocated by the base station to the terminal; and the random number allocated by the base station to the terminal Time domain location information of the access channel.

In an optional embodiment, the frequency domain location information of the random access channel allocated by the base station to the terminal includes: a subcarrier or a subchannel index where the group ₀ of the unit that constitutes the random access signal is sent. . Optionally, the frequency domain resources of several groups other than Group ₀ in the unit are indicated by the frequency domain location of Group ₀ (for example, according to a predefined rule, determined according to the frequency domain of Group ₀ ).

In an optional embodiment, when the uplink bandwidth includes 48 subcarriers or subchannels, the 6bits indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal. In the present embodiment, for example, "000000" represents a Subcarrior whose index is 0, and the index "101111" represents a Subcarrior whose index is 47.

In an optional embodiment, the foregoing 6 bits indication information is further used to indicate that the terminal randomly selects one subcarrier among the F subcarriers in Set _m as the frequency domain location where the random access channel is located. For example, “110000” may indicate that the terminal randomly selects one subcarrier among the F subcarriers in Set _m as the frequency domain location where the random access channel is located.

In an alternative embodiment, when included in Set _m F subcarriers or subchannels, by

The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal. In this embodiment,

Is the rounding operation operator.

In an alternative embodiment,

The indication information is further used to indicate that the terminal randomly selects one subcarrier among the F subcarriers in the Set _m as the frequency domain location where the random access channel of the terminal is located. In this embodiment,

Is the rounding operation operator.

In an optional embodiment, when the above set _M includes F subcarriers or subchannels,

The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal, where Num is the number of subcarriers occupied by the random access channel.

In an optional embodiment, the time domain location information of the random access channel allocated by the base station to the terminal includes: configuration period indication information n of the second Set _m ; wherein the base station is allocated to the terminal Set _m of the random access channel is defined as a second location Set _m; the second Set _m is selected from the first Set _m; the length of the second period, and arranged Set _m as a first configuration Set _m n times the period, n is a positive integer; the first Set _m is one or more time-frequency resource sets Set _m included in the random access channel resource, and n is a positive integer. When n=1, it is stated that the first Set _m and the second Set _m are equal.

In an optional embodiment, at least one of the following is included: when the value of n is described by 3 bits, the value of n is {1, 2, 3, 4, 5, 6, 7, 8} or {1 , 2, 4, 8, 16, 32, 64, 128} or {1, 2, 4, 8, 10, 12, 14, 16}; when the value of n is described by 2 bits, the value of n is { 1,2,3,4} or {1,2,4,8} or {1,4,6,8}.

In an optional embodiment, the time domain location of the random access channel allocated by the base station to the terminal is: the first first Set _m in the configuration period of the second Set _m .

In an alternative embodiment, the base station assigned to the time domain location of the random access channel terminal is located further comprising: a second position information Offset Set _m arranged in a period of the second Set _m; wherein the Offset Set _m for n first configuration in a second period indicative of Set _m, allocated to the index information of the random access channel where the first terminal of the Set _m.

In an alternative embodiment, the base station assigned to the domain location information of the random access channel where a terminal comprising: a field interval information Interval Set _m consecutive two second time; and the base station allocates to the terminal Set _m of the random access channel is defined as a second location Set _m; Set _m between the second selected Set _m from the first, and the second two consecutive first-Set _m interval interval Set _m The first set _m is shown as one or more time-frequency resource sets Set _m included in the random access channel resource.

In an optional embodiment, the signaling further includes: triggering positioning operation indication information. For example, “0” means that the positioning operation is not triggered; “1” means that the positioning operation is triggered.

In an optional embodiment, when the trigger location operation indication information is a trigger location operation, the terminal sends the random access signal on the signaling random access channel. In this embodiment, the random access signal sent by the terminal is used by the base station to perform location location use of the terminal.

In an optional embodiment, after the terminal sends the random access signal to the base station, the method further includes: receiving, by the terminal, a random access response message sent by the base station according to the detection result after detecting the random access signal. The random access response message includes at least one of the following information: subcarrier spacing indication information; configured subcarrier number indication information. In this embodiment, the subcarrier spacing indication information may be used to indicate the subcarrier spacing configuration when the Msg3 message is sent.

In an optional embodiment, the foregoing subcarrier spacing indication information and the configured subcarrier number indication information are indicated by a joint coding manner.

The present invention will be described below in conjunction with specific embodiments:

Specific embodiment 1

In the communication system, the terminal may select a corresponding sequence from the sequence set according to the first rule, and generate a random access signal according to at least the selected sequence; the terminal transmits the random access signal to the base station through the random access channel.

In this embodiment, the terminal may be divided into two sets, that is, the first terminal set and the second terminal set, and the first terminal set and the second terminal set may satisfy the following conditions:

The terminal included in the first terminal set is a terminal that transmits an Msg3 message by using multiple subcarriers, and the terminal included in the second terminal set is a terminal that transmits an Msg3 message by using a single subcarrier.

The sequence set may include two sequences of length N=4, that is,

The following first describes the operation of the sender:

The terminal selects a corresponding sequence from the sequence set according to the first rule, including:

a terminal selection sequence Code ₀ belonging to the first terminal set; a terminal selection sequence Code ₁ belonging to the second terminal set;

The terminal selects a corresponding sequence from the sequence set according to the first rule

After (j=0 or 1), generate a random access signal as follows:

Step 1: Subcarriers indexed as f _n (0 ≤ _n ≤ 3) in the frequency domain and occupying consecutive K symbols in the time domain

Then the frequency domain expression of the signal transmitted on the kth symbol and on the subcarrier f _n is

Then the frequency domain expression of the above K symbols and the signal transmitted on the subcarrier f _n is

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

For the frequency domain resource occupied by the subcarrier indexed as f _n , F _Offset is the frequency domain offset.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 3: The terminal sends a cyclic prefix CP _{n in} addition to the S _n , wherein the cyclic prefix CP _n ={S _n [QK-L+1],...,S _n [QK]}, L represents The number of time domain sampling intervals T _s included in the CP.

Step 4: Define Group _n as {CP _n , S _n }, that is, send the terminal

(0 ≤ j ≤ J-1, 0 ≤ n ≤ N-1) the expression form of the corresponding time domain signal; and Group _{n with} different values of _n occupy different symbols in the time domain.

Step 5: Define Group ₀ to Group _N-1 as the basic unit (corresponding to the above unit) constituting the random access signal.

Step 6: The random access signal sent by the terminal is formed by the Unit repeating H times in the time domain, or the random access signal sent by the terminal is formed by a Unit, where when the random access signal is formed by a Unit, it is sent. When the random access signal is used, the random access signal is repeated H times and then sent;

Among them, the number of repetitions H of different levels of terminal configurations is different.

Optionally, the foregoing level may include at least one of the following: an coverage enhancement level; a physical channel repetition transmission level; and a repeated transmission level of a message or signaling carried on the physical channel.

In this embodiment, the subcarrier spacing Δf of the random access channel configured by the system may be 3.75 kHz, and the time domain symbol length is

(microseconds). The cyclic prefix CP _n length is configured to be 266.7us, K=5, and the Group _n time domain length is 1.6ms (milliseconds). The length of the basic unit (Unit) in which the group ₀ to the group ₃ generates the random access signal is 6.4 ms;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 2, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, if the number of repetitions of the terminal configuration is one, only the basic unit (Unit) needs to be sent once.

In this embodiment, the random access channel resource occupied by the terminal transmitting the random access signal is included in one time-frequency resource set Set _m , where m is an index of the Set _m . As shown in FIG. 3, the set _m includes 12 subcarriers in the frequency domain, which are respectively Subcarrior0-Subcarrior11, and the set _m is at least four times longer than the time domain length of the unit in the time domain. In this embodiment, Set _{m has} a time domain length of 26ms. In addition to the time domain length of 4 Units, it also includes a guard time of 0.4ms. The terminal sends a Unit on Resource 0 in Set _m .

The following describes the operation of the receiving end:

The actions performed by the receiving end include:

Step 1: The base station receives the data on Group ₀ to Group ₃ , and combines the data received on the five symbols in each group to obtain the combined received data Y0, Y1, Y2 on Group ₀ to Group ₃ . Y3;

Step 2: Calculate according to the following formula to get [Corr1, Corr 2]:

Step 3: The base station performs coherent detection with [1, 1] and [1, -1] and [Corr1, Corr 2], respectively, when the energy values detected by [1, 1] and [Corr1, Corr 2] are greater than [1, -1] and the energy value detected by [Corr1, Corr 2], it is determined that the code transmitted by the terminal is code0; otherwise, it is determined that the code transmitted by the UE is code1.

Step 4: After determining the code sent by the terminal, the base station further completes the estimation of the terminal uplink synchronization timing error.

After successfully completing the random access signal detection sent by the terminal and the uplink timing synchronization deviation estimation of the terminal, the base station sends a random access response message (RAR, also referred to as message 2, Message 2, referred to as Msg2) to the base station. terminal. The terminal receives the RAR message, and obtains uplink timing synchronization information and uplink resources. However, it is not certain at this time that the RAR message is sent to the terminal itself rather than to other terminals because there is a possibility that different terminals transmit the same random access signal on the same time-frequency resource (this case is called For random access conflicts, the terminal needs to send a message 3 (Message3, referred to as Msg3) on the uplink resource allocated in the RAR to solve the random access conflict. In the initial random access process, Msg3 carries a specific ID of a terminal to distinguish different terminals.

The terminal sends an Msg3 message on the Msg3 message resource configured by the base station. After receiving the Msg3 sent by the terminal, the base station finally solves such a random access conflict by sending a message 4 (Message4, referred to as Msg4). Among them, Msg4 will carry a specific ID sent by the terminal in Msg3. When the terminal receives the Msg4 message sent by the base station, and the ID carried in the terminal matches the specific ID reported to the base station in Msg3, the terminal considers that it has won the random access collision and the random access succeeds; otherwise, the terminal It is considered that the access fails and the random access process is re-executed.

Optionally, two sequences of length N=4 in the sequence set include at least one of the following:

Among them, A is

C is a constant,

Optionally, the first terminal set and the second terminal set may also be at least one of the following:

The terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers, and the terminal included in the second terminal set is a terminal that supports only single subcarrier transmission;

The terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data, and the terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier;

The terminal included in the first terminal set is a terminal that is transmitted by the Msg3 message on multiple subcarriers, and the terminal included in the second terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission.

Specific embodiment 2

In the communication system, the terminal selects a corresponding sequence from the sequence set, and generates a random access signal according to at least the selected corresponding sequence; the terminal transmits the random access signal to the base station through the random access channel.

The multiple terminals may be divided into two sets, that is, the first terminal set and the second terminal set.

The sequence set includes two sequences of length N=4, that is,

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 3: In addition to sending S _n , the above terminal sends:

The cyclic prefix CP _n , wherein the cyclic prefix CP _n = {S _n [QK-L+1], ..., S _n [QK]}, L represents the number of time domain sampling intervals T _s included in the CP.

Step 4: You can define Group _n as {CP _n , S _n }, which is sent by the terminal.

The expression of the corresponding time domain signal; and the Group _{n with} different values of _n occupy different symbols in the time domain.

Step 5: Define Group ₀ to Group _N-1 as a basic unit (Unit) for generating the random access signal by the terminal;

Step 6: The random access signal sent by the terminal is repeated by the Unit H in the time domain;

Optionally, the number of repetitions H of different levels of terminal configurations is different.

Optionally, the level of the terminal includes at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

Repeated transmission level of messages or signaling carried on the physical channel.

In this embodiment, the subcarrier spacing Δf of the random access channel configured by the system is 3.75 KHz, and the time domain symbol length is

In this embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, the basic unit of the terminal generates a random access signal The two-dimensional structure of the time domain and the frequency domain of (Unit) is as shown in FIG. 4, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the configurations of Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, if the number of repetitions of the terminal configuration is H=1, only the basic unit (Unit) needs to be transmitted once.

In this embodiment, the random access channel resource occupied by the terminal transmitting the random access signal is included in one time-frequency resource set Set _m , where m is an index of the Set _m . As shown in FIG. 5, the set _m includes 12 subcarriers in the frequency domain, which are respectively Subcarrior0-Subcarrior11, and the set _m is at least four times longer than the time domain length of the unit in the time domain. In this embodiment, Set _{m has} a time domain length of 26ms. In addition to the time domain length of 4 Units, it also includes a guard time of 0.4ms. The upper and lower frequency resources occupied by Set _m are configured with 7.5 kHz guard bandwidth; the terminal sends Units on subset 0 in Set _m .

The base station can receive the random access signal sent by the terminal according to the following steps:

Step 2: After [Y0, Y1], [Y2, Y3] are coherently detected with [1, 1], the detection results are added together as Corr1; [Y0, Y1], [Y2, Y3] and [1, respectively -1] After performing coherent detection, the detection results are added as Corr2; when Corr1 is larger than Corr2, it is determined that the code transmitted by the terminal is code0; otherwise, it is determined that the code transmitted by the UE is code1.

Step 3: After determining the code sent by the terminal, the base station further completes the uplink timing synchronization deviation estimation of the terminal.

Specific embodiment 3

The sequence set includes two sequences of length N=8, that is,

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 1: Subcarriers indexed as f _n (0 ≤ _n ≤ 7) in the frequency domain and occupying consecutive K symbols in the time domain

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 3: The terminal sends a cyclic prefix CP _{n in} addition to the S _n , wherein the cyclic prefix CP _n = {S _n [QK-L+1], ..., S _n [QK]}, L Indicates the number of time domain sampling intervals T _s included in the CP.

Step 4: You can define that Group _n is {CP _n , S _n }

Step 5: Group ₀ to Group _N-1 may be defined as a basic unit (Unit) for generating the random access signal by the terminal.

Step 6: The random access signal sent by the terminal is composed of the Unit repeating H times in the time domain;

The level of the above terminal may include at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

(microseconds). The cyclic prefix CP _n length is configured to be 66.7us, K=5, and the Group _n time domain length is 1.4ms (milliseconds). The length of the basic unit (Unit) that the group ₀ to the group ₇ generates the random access signal is 11.2 ms;

In this embodiment, Group ₀ ~ Group ₇ corresponding to frequency domain subcarrier index f ₀ ~ f ₇ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, subcarrior 2, subcarrior 3, subcarrior 9, subcarrior 8, then the The two-dimensional structure of the time domain and the frequency domain of the basic unit (Unit) in which the terminal generates the random access signal is as shown in FIG. 6, and the subcarriers configured by Group ₀ and Group ₁ are adjacent, and the Group ₂ and Group _{3 are} configured. The subcarriers are adjacent to each other, and the subcarriers configured by Group ₄ and Group ₅ are adjacent to each other, and the subcarriers configured by Group ₆ and Group ₇ are adjacent.

The subcarriers configured in Group ₁ and Group ₂ are separated by 6 subcarriers, and the subcarriers configured in Group ₅ and Group ₆ are separated by 6 subcarriers. Group ₀ and Group ₄ subcarrier index is determined according to a predefined interval rules Examples Group ₀ and Group ₄ subcarrier index interval is two subcarriers of the present embodiment;

In this embodiment, if the number of repetitions of the terminal configuration is H=1, only the basic unit (Unit) needs to be sent once.

In this embodiment, the random access channel resource occupied by the terminal transmitting the random access signal is included in one time-frequency resource set Set _m , where m is an index of the Set _m . As shown in FIG. 7 , the Set _m includes 12 subcarriers in the frequency domain, which are respectively Subcarrior 0 ～ Subcarrior 11 , and the Set _m is at least 3 times longer than the time domain length of the Unit in the time domain. In this embodiment, Set _{m has} a time domain length of 34ms. In addition to the time domain length of 3 Units, it also includes a guard time of 0.4ms. The frequency resources occupied by Set _m are respectively configured with 7.5 kHz guard bandwidth in the upper and lower sidebands; the terminal sends a Unit on subset 0 in Set _m .

Step 1: The base station receives the data on Group ₀ to Group ₇ , and combines the data received on the five symbols in each group to obtain the combined received data Y0, Y1, Y2 on Group ₀ to Group ₇ . Y3, Y4, Y5, Y6, Y7.

Step 2: [Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7] After coherent detection with [1,1,1,1,1,1,1,1], the test results are added together as Corr1 ;[Y0,Y1,Y2,Y3,Y4,Y5,Y6,Y7] and [1,1,1,1,-1,-1,-1,-1] after coherent detection, the test results are added together Corr2; when Corr1 is greater than Corr2, it is determined that the code sent by the terminal is code0; otherwise, it is determined that the code sent by the UE is code1.

Specific embodiment 4

The multiple terminals may be divided into two sets, that is, the first terminal set and the second terminal set, and the first terminal set and the second terminal set meet the following conditions:

The sequence set may include two sequences of length N=4, that is,

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols The time domain signal expression is

Step 3: The terminal sends a cyclic prefix CP _{n in} addition to the S _n , wherein the cyclic prefix CP _n ={S _n [QK-L+1],...,S _n [QK]},L Indicates the number of time domain sampling intervals T _s included in the CP.

Optionally, the level of the terminal may include at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

(microseconds). The cyclic prefix CP _n length is configured to be 266.7us, K=5, and the Group _n time domain length is 1.6ms (milliseconds). Since N=4, the length of the basic unit (Unit) that Group ₀ to Group ₃ generates as the random access signal is 6.4 ms.

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 8. The subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource occupied by the terminal transmitting the random access signal is included in one time-frequency resource set Set _m , where m is an index of the Set _m . As shown in FIG. 9 , the Set _m includes 12 subcarriers in the frequency domain, which are respectively Subcarrior 0 ～ Subcarrior 11 , and the Set _m is at least 4 times longer than the time domain length of the Unit in the time domain. In this embodiment, Set _{m has} a time domain length of 26ms. In addition to the time domain length of 4 Units, it also includes 0.4ms Guard Time. The terminal sends a Unit on the subset 0 in Set _m .

When the uplink bandwidth includes 48 subcarriers, up to 4 Set _m can be configured.

As shown in Figure 10. 2bit indicated by the frequency domain location of the terminal configuration Set _m, e.g. Configuration "00" indicates that the terminal is configured Set _m

Configuration "01" indicates that the terminal is configured Set _m

Configuration "10" Set _m indicates the terminal is configured

Configuration "11" Set _m indicates the terminal is configured

Step 1: The base station receives the data on Group ₀ to Group ₃ , and combines the data received on the five symbols in each group to obtain the combined received data Y0, Y1, Y2 on Group ₀ to Group ₃ . Y3.

Step 2: Calculate according to the following formula to obtain [Corr1, Corr 2].

Step 4: After determining the code sent by the terminal, the base station further completes the uplink timing synchronization deviation estimation of the terminal.

Optionally, the set _m configured for the terminal may also be indicated by a bitmap bitmap. For example, when the uplink bandwidth includes 48 subcarriers, a maximum of 4 Set _m may be configured.

As shown in Figure 10. 4bit bitmap indicated by a frequency domain location of the terminal configuration Set _m, e.g. Configuration "0001" indicates that the terminal is configured Set _m

Configuration "0010" Set _m indicates the terminal is configured

Configuration "0100" Set _m indicates the terminal is configured

Configuration "1000" Set _m indicates the terminal is configured

Configuration "1100" Set _m indicates the terminal is configured

Specific embodiment 5

Wherein the sequence set comprises two sequences of length N=4, ie

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Optionally, the number of repetitions H of the terminal configurations of different levels is different.

Optionally, the level of the foregoing terminal may include at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 11 , the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, if the number of repetitions of the terminal configuration is H=8, the basic unit (Unit) needs to be repeated 8 times.

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . 12, the Set _m includes 12 subcarriers in the frequency domain, respectively Subcarrior0 ~ Subcarrior11, time domain Set _m length is 26ms, the length of the time domain in addition contains Unit 4, further comprising 0.4ms Guard Time.

The interval between the adjacent two time-frequency resource sets Set _m and Set _m+1 is Vms, as shown in FIG. 13 , where V is at least one of the following:

V=0;

V=2 ^y , where y is a positive integer greater than or equal to 0;

In this embodiment, y can take a value range of {1, 2, 3, 4, 5, 6, 7}.

In this embodiment, the terminal repeats the transmission of the Unit 8 times in Set _m and Set _m+1 .

Optionally, the adjacent two time-frequency resource sets Set _m and Set _m+1 are separated by Vms, wherein Vms can also be determined as follows:

The value of V is at least one of the following:

V=0;

V=B×2 ^y , where y is a positive integer greater than or equal to 0; B is the time domain length of Set _m .

In this embodiment, the value of y may be {1, 2, 3, 4, 5, 6, 7}.

Specific embodiment 6

Wherein the sequence set comprises two sequences of length N=4, ie

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: Define that Group _n is {CP _n , S _n } is sent by the terminal.

Step 5: Group ₀ to Group _N-1 may be defined as a basic unit (Unit) for generating the random access signal by the terminal;

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 14 , the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . Shown in Figure 15, the Set _m includes 12 subcarriers in the frequency domain, respectively Subcarrior0 ~ Subcarrior11, time domain Set _m length is 26ms, the length of the time domain in addition contains Unit 4, further comprising 0.4ms Guard Time.

The configuration period of the time-frequency resource set Set _m is Vms, as shown in Figure 16, where the value of V is:

V=2 ^y , where y is a positive integer;

In this embodiment, the value of y may be {5, 6, 7, 8, 9, 10, 11, 12}.

Optionally, the configuration period of the time-frequency resource set Set _m is Vms, where Vms can also be determined as follows:

The value of V is:

V=B×2 ^y , where y is an integer greater than or equal to 0; B is the time domain length of Set _m .

In this embodiment, the value of y may be {0, 1, 2, 3, 4, 5, 6, 7}.

The terminal repeats the transmission of the Unit 8 times in Set _m and Set _m+1 .

Specific embodiment 7

Wherein the sequence set comprises two sequences of length N=4, ie

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: You can define that Group _n is {CP _n , S _n }

Optionally, the foregoing terminal level may include at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 17, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . 18, the Set _m includes 12 subcarriers in the frequency domain, respectively Subcarrior0 ~ Subcarrior11, time domain Set _m length is 26ms, the length of the time domain in addition contains Unit 4, further comprising 0.4ms Guard Time.

The configuration period of the time-frequency resource set Set _m is Vms, V=B×2 ^y , where y is a positive integer greater than or equal to 0; B is the time domain length of Set _m .

In this embodiment, the value of y may be {0, 1, 2, 3, 4, 5, 6, 7}.

In this embodiment, y=2, that is, up to 4 Set _m can be configured in Vms. As shown in FIG. 19, since each Set _m includes 4 subsets, up to 16 subsets can be configured in Vms, and the index of the subset is defined. For subset 0 to subset 15. In this embodiment, the terminal is divided into three levels, level 1, level 2, and level 3. The number of repeated transmissions of the unit in the time domain is 2, 4, and 8 times, respectively. Then, subset 0 to subset 1 are assigned to the terminal of level 1, subset 2 to subset 5 are assigned to the terminal of level 2, and subset 6 to subset 13 are assigned to the terminal of level 3. The same subset allocation method is adopted between the configuration periods of different time-frequency resource sets Set _m .

Specific embodiment 8

Wherein the sequence set comprises two sequences of length N=4, ie

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: You can define that Group _n is {CP _n , S _n }

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 20, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . 21, the Set _m includes 12 subcarriers in the frequency domain, respectively Subcarrior0 ~ Subcarrior11, time domain Set _m length is 26ms, the length of the time domain in addition contains Unit 4, further comprising 0.4ms Guard Time.

The configuration period of the time-frequency resource set Set _m is Vms, V=B×D, where D is a positive integer greater than or equal to 1; B is a time domain length of Set _m .

D is preferably 2 ^x , wherein x is an integer greater than or equal to 0;

That is, up to D Set _m can be configured in Vms. Since each Set _m includes 4 subsets, up to 4*D subsets can be configured in Vms, and the index of the defined subset is subset 0 to subset (4*D-1). In this embodiment, the terminal may be divided into G levels, which are respectively level 0 to level (G-1), wherein the level g (0 ≤ g ≤ G-1) (corresponding to the above-mentioned level index is g The terminal sends a random access signal, and the number of times that the Unit repeats the transmission in the time domain is Repetition _g . Therefore, in one of the configuration periods, consecutive Repetition _g subsets are configured for the level g terminals, and the starting subset index StartingSubsetIndex _g is calculated according to the following formula:

The same subset allocation method can be adopted between different configuration periods.

Specific embodiment 9

The first terminal set includes terminals that support single subcarrier transmission and have a subcarrier spacing of 3.75 kHz, and the second terminal set includes terminals that support single subcarrier transmission and subcarrier spacing of 15 kHz.

The sequence set includes two sequences of length N=4, that is,

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: You can define that Group _n is {CP _n , S _n }

Optionally, the level of the foregoing terminal includes at least one of the following:

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 22, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . As shown in FIG. 23, the Set _m includes 12 subcarriers in the frequency domain, which are Subcarrior0~Subcarrior11, and the Set _m time domain length is a time domain length of 1 Unit. The Set _m includes a subset, wherein the subset is configured with the same subcarrier in the frequency domain as the Set _m , and the subset has a length of 1 Unit in the time domain;

The configuration period of the time-frequency resource set Set _m is Vms, V=B×D, where D is an integer greater than or equal to 1; B is the time domain length of Set _m .

In this embodiment, D=2 ^y , where y is an integer greater than or equal to 0;

In this embodiment, y=4, that is, up to 16 Set _m can be configured in Vms. Since each Set _m includes 1 subset, up to 16 subsets can be configured in Vms, and the index of the defined subset is subset 0 to subset. 15. In this embodiment, the terminal is divided into three levels, which are level 0, level 1, and level 2. The terminal of level g (0 ≤ g ≤ 2) needs to repeat the number of times that the Unit repeats the transmission in the time domain is Repetition _g . In this embodiment, Repetition ₀ = 2, Repetition ₁ = 4, and Repetition ₂ = 8.

During one of the configuration periods, consecutive Repetition _g subsets are configured for the level g terminals, and the starting subset index StartingSubsetIndex _g can be calculated according to the following formula:

That is, StartingSubsetIndex ₀ =0, StartingSubsetIndex ₁ = 2, StartingSubsetIndex ₂ = 6.

Level index was assigned to the terminal disposed contiguous g Repetition _g of a subset of the diagram shown in Figure 24.

Between different configuration periods of the Set _m , the subset configuration scheme corresponding to the terminal with the level index g may be the same.

Specific embodiment 10

Wherein the sequence set comprises two sequences of length N=4, ie

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After (j=0 or 1), the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: You can define that Group _n is {CP _n , S _n }

Coverage enhancement level;

Physical channel repeat transmission level;

The cyclic prefix CP _n length is configured to be 266.7us, K=5, and the Group _n time domain length is 1.6ms (milliseconds). The length of the basic unit (Unit) in which the group ₀ to the group ₃ generates the random access signal is 6.4 ms;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 25, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the Group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . As shown in FIG. 26, the Set _m includes 12 subcarriers in the frequency domain, which are Subcarrior0~Subcarrior11, and the Set _m time domain length is a time domain length of 1 Unit. The Set _m includes a subset, wherein the subset is configured with the same subcarrier in the frequency domain as the Set _m , and the subset has a length of 1 Unit in the time domain;

The configuration period of the time-frequency resource set Set _m is Vms. In this embodiment, V=2 ^y , where y is an integer greater than or equal to 0;

In this embodiment, y=6, then V=64ms; then up to 10 Set _m can be configured in Vms. Since each Set _m includes 1 subset, up to 10 subsets can be configured in Vms, and the index of the defined subset is Subset 0 to subset 9. In this embodiment, the terminal is divided into three levels, which are level 0, level 1, and level 2. The terminal g of the level g (0 ≤ g ≤ 2) needs to repeat the number of times that the unit repeats the transmission in the time domain is Repetition _g . In this embodiment, Repetition ₀ =1, Repetition ₁ = 2, and Repetition ₂ = 4.

During one of the configuration periods, consecutive Repetition _g subsets are configured for the level g terminals, and the starting subset index StartingSubsetIndex _g is calculated according to the following formula:

That is, startingSubsetIndex ₀ =0, StartingSubsetIndex ₁ =1, StartingSubsetIndex ₂ = 3, the allocation of consecutive Repetition _g subsets for the terminal with the level index g is as shown in FIG. 27 .

Specific embodiment 11

Wherein the sequence set comprises a sequence of length N=4, ie

Where j=0;

The terminal selects a corresponding sequence from the sequence set, including:

Terminal selection sequence

After that, the random access signal can be generated as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: You can define that Group _n is {CP _n , S _n }

Coverage enhancement level;

Physical channel repeat transmission level;

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and frequency domain of the unit is shown in FIG.

The subcarriers configured in Group ₀ and Group ₁ are adjacent to each other. The subcarriers configured in Group ₂ and Group ₃ are adjacent to each other. The subcarriers configured in Group ₁ and Group ₂ are separated by 6 subcarriers. Further, the subcarrier indexes of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource includes a plurality of time-frequency resource sets Set _m , where m is an index of the Set _m . As shown in Figure 29.

The Set _m includes 12 subcarriers in the frequency domain, respectively Subcarrior0~Subcarrior11, and the set _m time domain length is 26ms, including the time domain length of 4 Units and the guard time of 0.4ms. The Set _m includes four subsets, wherein the subset is configured with the same subcarriers in the frequency domain as the Set _m , and the subset has a length of 4 Units in the time domain;

In this embodiment, y=10, then V=1024 ms; then, up to 39 Set _m can be configured in Vms. In this embodiment, the terminal is divided into three levels, namely level 0, level 1, level 2, respectively. . The terminal g of the level g (0 ≤ g ≤ 2) needs to repeat the number of times that the unit repeats the transmission in the time domain is Repetition _g . In this embodiment, Repetition ₀ =1, Repetition ₁ = 2, and Repetition ₂ = 4.

In the present embodiment, the terminal allocates a basic unit of resource allocation of the random access signal with Set _m = 26 ms as the level g (0 ≤ g ≤ 2). In the present embodiment, the N _g Set _m resources allocated for the terminal (0 ≤ _g ≤ 2) whose rank index is g are 2 Set _m , 2 Set _m, and 4 Set _{m, respectively} .

In this embodiment, the time domain interval between Set _m configured for the terminal with the level index g is L _g ms.

In the present embodiment, the same index different levels corresponding to the terminal L _g; the present embodiment, L _g = 32ms.

In this embodiment, between the N _g Set _m resources corresponding to the terminals of different level indexes, the interval L _β = L _g .

In this embodiment, the start time of the first Set _m configured for the terminal with the level index g=0 is the same as the start time of the configuration period of the time-frequency resource set Set _m .

Then, in V=1024 ms, the resource allocation of the random access signal transmitted by the terminal whose rank index is g (0≤g≤2) is as shown in FIG.

For the terminal with the level index g=0, a total of 8 subsets are configured in the two Set _m , and the terminal with the level index g=0 has a total of 8 opportunities to send random access signals, and the corresponding resources are: Set ₀ the subset0, Set ₀ in subset1, Set ₀ in subset2, Set ₀ in subset3, Set ₁ in subset0, Set ₁ in subset1, Set ₁ in subset2, Set ₁ in subset3; terminal in the above 8 A resource is randomly selected from the resources as a transmission resource of the random access signal;

For a terminal with a level index g=1, a total of 8 subsets are configured in the two Set _m , and the terminal with the level index g=1 has a total of 4 opportunities for transmitting random access signals, and the corresponding resources are: Set ₂ the subset0, subset1, subset2 in ₂ Set, _subset0 in _{3 subset3,} Set, subset1, subset2 in ₃ Set, _subset3; terminal randomly selects one of the four resource transmission resource as the resource of the random access signal;

For the terminal level index g = 2, a total of four arranged in a Set _m Subset 16, the terminal level index g = 2, a total of four random access signal transmission opportunity, corresponding resources are: Set ₄ in the subset0, subset0 in _{6 subset1, subset2, subset3, Set} 5 in subset0, subset1, subset2, subset3, Set, subset0 in _{7 subset1, subset2, subset3, Set} , subset1, subset2, subset3; terminal of the four A resource is randomly selected from the resources as a transmission resource of the random access signal;

The resource allocation scheme corresponding to the terminal with the level index g may be the same between the configuration periods of different Set _m .

Specific embodiment 12

The terminal included in the first terminal set is a terminal that has the information amount of the S1 in the Msg3 message, and the terminal in the second terminal set is a terminal that has the information amount of the S2 in the Msg3 message, where Size1 is not equal to Size2.

The sequence set may include two sequences of length N=4, that is,

The following first describes the operation of the sender:

After (j=0 or 1), generate a random access signal as follows:

Step 2:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol.

When the domain sampling interval is T _s ,

The corresponding time domain expression is

The number of sampling points in the time domain;

Then the terminal sends on consecutive K symbols

The time domain signal expression is

Step 4: Define Group _n as {CP _n , S _n }, that is, send the terminal

In the present embodiment, Group ₀ ~ Group ₃ corresponding to frequency domain subcarrier index f ₀ ~ f ₃ are _{_{_{subcarrior 0, subcarrior 1, subcarrior 7}}} , subcarrior 6, then the terminal generates a random access signal substantially The two-dimensional structure of the time domain and the frequency domain of the unit is as shown in FIG. 2, the subcarriers configured by Group ₀ and Group ₁ are adjacent, the subcarriers configured by Group ₂ and Group ₃ are adjacent, and the group ₁ and Group _{2 are} configured. The subcarriers are separated by 6 subcarriers. Further, the subcarrier indices of Group ₁ , Group _2, and Group ₃ can be determined according to the subcarrier index of Group ₀ .

In this embodiment, the random access channel resource occupied by the terminal transmitting the random access signal is included in one time-frequency resource set Set _m , where m is an index of the Set _m . 31, the Set _m in the frequency domain comprises 12 subcarriers (Subcarrior), respectively Subcarrior0 ~ Subcarrior11, the arrangement period Set _m to 40ms. In this embodiment, the number of subcarriers occupied by the random access channel for transmitting the random access signal is Num, and Num=10, and the 10 subcarriors with the smallest default subcarrier index are used as the subcarriers occupied by the random access channel. In the embodiment, Subcarrior0~Subcarrior9, the Subcarrior0~Subcarrior9 are subcarrier indexes in which the Group ₀ in the unit unit constituting the random access signal is transmitted, and Group ₁ and Group _{2 in the} Unit except Group ₀ and The frequency domain resource where Group ₃ is located is determined by the frequency domain location of Group ₀ and according to predefined rules. In this embodiment, Group ₀ , Group ₁ , Group _2, and Group ₃ respectively correspond to subcarrier indexes of Subcarrior0, Subcarrior1, Subcarrior7, and Subcarrior6.

In this embodiment, the RAR message sent to the terminal includes the following information:

The indication information of the subcarrier spacing used when transmitting Msg3;

The number of subcarriers indication information when Msg3 is sent;

In this embodiment, the indication information of the subcarrier spacing used when Msg3 is transmitted and the indication information of the number of subcarriers when the Msg3 is transmitted are indicated by a joint coding manner.

When the terminal transmits the Msg3 message by using a single subcarrier transmission manner, the single subcarriers have two configurations of 3.75 kHz and 15 kHz. When the uplink available bandwidth is 180 kHz, for a single subcarrier interval of 3.75 kHz, up to 48 subcarriers can be configured in the uplink available bandwidth, and the subcarrier index is A0 to A47; for a single subcarrier of 15 kHz A maximum of 12 subcarriers can be configured in the uplink available bandwidth, and the subcarrier index is B0 to B11. The joint coding mode indication is:

Configure joint coding indication information of 6 bits, where "000000" to "101111" indicate subcarrier indexes A0 to A47,

"110000" to "111011" indicate subcarrier indexes B0 to B11.

When the terminal transmits the Msg3 message by using multiple subcarrier transmission modes, the subcarrier spacing is 15 kHz. When the uplink available bandwidth is 180 kHz, a maximum of 12 subcarriers can be configured in the uplink available bandwidth, and the subcarrier index is 0 to 11. The frequency domain resource allocation of the Msg3 message has the following configurations:

1. All 12 subcarriers occupying the subcarrier index {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11},

2. 6 subcarriers occupying the subcarrier index {0, 1, 2, 3, 4, 5}, or 6 subcarriers occupying the subcarrier index {6, 7, 8, 9, 10, 11};

3. 3 subcarriers occupying the subcarrier index {0, 1, 2}, or 3 subcarriers occupying the subcarrier index {3, 4, 5}, or 3 subcarriers occupying the subcarrier index {6, 7, 8} Carrier, or 3 subcarriers occupying subcarrier index {9, 10, 11}.

Then the joint coding mode indication is:

Configure joint coding indication information of 3 bits, where "000" indicates occupied subcarrier index {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}; "001" and "010" respectively Indicates 6 subcarriers occupying the subcarrier index {0, 1, 2, 3, 4, 5} and 6 subcarriers occupying the subcarrier index {6, 7, 8, 9, 10, 11}; "011" "100 "101" and "110" respectively indicate 3 subcarriers occupying the subcarrier index {0, 1, 2}, 3 subcarriers occupying the subcarrier index {3, 4, 5}, and the occupied subcarrier index {6, 7, 3 subcarriers of 8} and 3 subcarriers of {9, 10, 11}.

Specific embodiment 13

In the NB-IoT system, the uplink system bandwidth is 180 kHz. As shown in FIG. 32, in this embodiment, the uplink access bandwidth (PRACH) configured by the base station occupies an uplink bandwidth of 45 kHz, and the PRACH subcarrier spacing Δf is 3.75 kHz. A total of 12 PRACH subcarriers are configured, respectively, which are Subcarrior 0 ～ Subcarrior 11.

Group ₁ to Group _{4 are} defined as the basic unit (Unit) that constitutes a random access signal (Preamble). Group ₁ to Group ₄ are respectively sent on different subcarriers; each group includes one cyclic prefix (CP) and five Preamble symbols (symbol), and one Preamble symbol time domain symbol length.

When the length of the CP is 0.2667ms, the length of each group is 0.2667+0.2667*5=1.6ms, and the length of the Unit is 1.6*4=6.4ms.

When the length of the CP is 0.0667ms, the length of each group is 0.0667+0.2667*5=1.4ms, and the length of the unit is 1.4*4=5.6ms;

In this embodiment, the CP length is 0.2667 ms, and the unit length is 6.4 ms;

When the terminal selects the Subcarrior sent by Group ₁ as Subcarrior0, the Subcarrior sent by Group ₂ is Subcarrior1, the Subcarrior sent by Group ₃ is Subcarrior7, and the Subcarrior sent by Group ₄ is Subcarrior6, as shown in Figure 32.

In order to avoid interference between the PRACH and the Sounding Reference Signal (SRS) in the NB-IoT system (the SRS may be configured by the NB-IoT system or configured by other systems), the NB-IoT system PRACH The second protection time (Guard Time 2, GT2 for short) is added to the resource configuration. In this embodiment, the SRS is from the LTE system, and after the terminal completes the transmission of the random access signal of one group, the GT2 with a time length of 0.4 ms needs to be introduced. As shown in FIG. 32, the unit length becomes 8 ms.

The time length of the basic unit of the random access signal (Preamble) T_Unit1 is 8 ms;

In this embodiment, the transmission period of the random access signal (Preamble) transmitted on the PRACH is 1280 ms;

The starting position offset of the Preamble transmission is 128ms.

The number of repeated transmissions of the basic unit transmitted by the Preamble, R1; R1 is selected from {1, 2, 4, 8, 16, 32, 64, 128}, in this embodiment, R1=64;

Guard Time of Preamble transmission, GT1=1ms;

In this embodiment, the 64-time repeated transmission of the basic unit of the Preamble transmission has a total length of 512 ms;

When the number of repeated transmissions of the basic unit of the Preamble transmission is greater than R1set, after the transmission of the R1set secondary Preamble basic unit is completed, the Preamble transmission interval Gap1 needs to be introduced, and the Preamble is not transmitted during the Gap1 time. In this embodiment, R1set=32 and Gap1=20 ms, and the 64-time repeated transmission structure of the basic unit of the Preamble is as shown in FIG.

Specific embodiment 14

In the NB-IoT system, the uplink system bandwidth is 180 kHz. As shown in FIG. 34, in this embodiment, the uplink access bandwidth (PRACH) configured by the base station occupies an uplink bandwidth of 45 kHz, and the PRACH subcarrier spacing Δf is 3.75 kHz. A total of 12 PRACH subcarriers are configured, respectively, which are Subcarrior 0 ～ Subcarrior 11.

When the length of the CP is 0.0667ms, the length of each group is 0.0667+0.2667*5=1.4ms, and the length of the Unit is 1.4*4=5.6ms.

In this embodiment, the CP length is 0.2667 ms, and the unit length is 6.4 ms;

When the terminal selects Subcarrior sent by Group ₁ as Subcarrior0, the Subcarrior sent by Group ₂ is Subcarrior1, the Subcarrior sent by Group ₃ is Subcarrior7, and the Subcarrior sent by Group ₄ is Subcarrior6, as shown in Figure 34.

In order to avoid interference between the PRACH and the Sounding Reference Signal (SRS) in the NB-IoT system (the SRS may be configured by the NB-IoT system or configured by other systems), the NB-IoT system PRACH The second protection time (Guard Time 2, GT2 for short) is added to the resource configuration. In this embodiment, the SRS is from the LTE system, and after the terminal completes the transmission of the random access signals of the two groups, the GT2 with a length of 0.8 ms needs to be introduced. As shown in FIG. 34, the unit length becomes 8 ms.

In this embodiment,

The transmission period of the random access signal (Preamble) transmitted on the PRACH is 1280 ms;

The starting position offset of the Preamble transmission is 128ms.

Guard Time of Preamble transmission, GT1=1ms;

When the number of repeated transmissions of the basic unit of the Preamble transmission is greater than R1set, after the transmission of the R1set secondary Preamble basic unit is completed, the Preamble transmission interval Gap1 needs to be introduced, and the Preamble is not transmitted during the Gap1 time. In this embodiment, R1set=32 and Gap1=20 ms, and the 64-time repeated transmission structure of the basic unit of the Preamble is as shown in FIG. 35.

Specific embodiment 15

In the NB-IoT system, the uplink system bandwidth is 180 kHz. As shown in FIG. 36, in this embodiment, the uplink access bandwidth (PRACH) configured by the base station occupies an uplink bandwidth of 45 kHz, and the PRACH subcarrier spacing Δf is 3.75 kHz. A total of 12 PRACH subcarriers are configured, respectively, which are Subcarrior 0 ～ Subcarrior 11.

When the CP length is 0.2667ms, each group length is 0.2667+0.2667*5=1.6ms;

When the length of the CP is 0.0667ms, the length of each group is 0.0667+0.2667*5=1.4ms;

In this embodiment, the length of the CP is 0.2667 ms, and the length of each group is 0.2667 + 0.2667 * 5 = 1.6 ms;

When the terminal selects the Subcarrior sent by Group ₁ as Subcarrior0, the Subcarrior sent by Group ₂ is Subcarrior1, the Subcarrior sent by Group ₃ is Subcarrior7, and the Subcarrior sent by Group ₄ is Subcarrior6, as shown in Figure 36.

In this embodiment, the number of repeated transmissions of the Unit transmitted by the Preamble is R1=64; the 64 units include Y (Y=64*4=256) Groups, and the indexes defining the 256 Groups are Group ₀ to Group ₂₅₅ ;

In order to avoid interference between the PRACH and the Sounding Reference Signal (SRS) in the NB-IoT system (the SRS may be configured by the NB-IoT system or configured by other systems), the NB-IoT system PRACH Increase the time interval (Gap) in the resource configuration. After the present embodiment, the SRS from the LTE system, and is completed when the terminal transmits a random access signal of Group 6, the length of time necessary to introduce the Gap 0.4ms; the introduction of the number N _gap Gap

The index of the six groups is Group _start to Group _end ; where start=6×n _gap , 0≤n _gap ≤N _gap −1; end=start+5.

Specific embodiment 16

In the NB-IoT system, the uplink system bandwidth is 180 kHz. As shown in FIG. 37, in this embodiment, the uplink access bandwidth (PRACH) configured by the base station occupies an uplink bandwidth of 45 kHz, and the PRACH subcarrier spacing Δf is 3.75 kHz. A total of 12 PRACH subcarriers are configured, respectively, which are Subcarrior 0 ～ Subcarrior 11.

When the CP length is 0.2667ms, each group length is 0.2667+0.2667*5=1.6ms;

When the terminal selects the Subcarrior sent by Group ₁ as Subcarrior0, the Subcarrior sent by Group ₂ is Subcarrior1, the Subcarrior sent by Group ₃ is Subcarrior7, and the Subcarrior sent by Group ₄ is Subcarrior6, as shown in Figure 37.

In this embodiment, the number of repeated transmissions of the Unit transmitted by the Preamble is R1=64; the index defining the 64 Units is Unit ₀ to Unit ₆₃ ;

In order to avoid interference between the PRACH and the Sounding Reference Signal (SRS) in the NB-IoT system (the SRS may be configured by the NB-IoT system or configured by other systems), the NB-IoT system PRACH Increase the time interval (Gap) in the resource configuration. After the present embodiment, the SRS from the LTE system, and is completed when the terminal transmits a random access signal Unit 4, the length of time necessary to introduce the Gap 0.4ms; the introduction of the number N _gap Gap

The index of the 4 units is Unit _start to Unit _end ; where start=4×n _gap , 0≤n _gap ≤N _gap −1; end=start+3.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, an access processing device is also provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 38 is a structural block diagram of an access processing apparatus according to an embodiment of the present invention. The apparatus may be applied to a terminal. As shown in FIG. 38, the apparatus includes a selection module 382, a generating module 384, and a sending module 386. Description of the device:

The selecting module 382 is configured to select a sequence corresponding to the terminal in the sequence set; the generating module 384 is connected to the selecting module 382, configured to generate a random access signal according to at least the corresponding sequence; and the sending module 386 is connected to the generating module 384. And configured to send the random access signal to the base station.

J is a positive integer and N is a positive integer.

The selection module 382 may select a sequence corresponding to the terminal in the sequence set by: determining a sequence subset corresponding to the terminal set to which the terminal belongs to the R sequence subsets; and selecting a piece from the determined sequence subset The sequence acts as the corresponding sequence. Optionally, when there are only one sequence in the determined sequence subset, the one sequence in the sequence subset is selected as a corresponding sequence; when there are multiple sequences in the determined sequence subset, the determined sequence is determined A sequence is randomly selected in the subset as a corresponding sequence; where R is a positive integer. In this embodiment, the foregoing sequence set may be divided into R sequence sub-sets. Therefore, when selecting a sequence corresponding to the terminal, the terminal may first select a sequence sub-set that is configured for the terminal set to which the terminal belongs, and then A corresponding sequence is selected from the selected subset of sequences.

In an optional embodiment, the selecting module 382 may determine a sequence subset corresponding to the terminal set to which it belongs from the R sequence subsets by selecting the (Y+) from the R sequence subsets. 1) A sequence sub-set is a sequence sub-set corresponding to a terminal set to which it belongs, where Y=Mod (Cell ID, R), and the Cell ID is a cell identity index accessed by the terminal. In this embodiment, the base station may configure a subsequence for the terminal set to which the terminal belongs, in combination with the Mod (Cell ID, R) described above as a remnant algorithm, that is, Y is a remainder obtained by dividing the Cell ID by R.

When the number of terminal sets is 4, the four different terminal sets are a first terminal set, a second terminal set, a third terminal set, and a fourth terminal set, and the first terminal set, the second terminal set, and the third terminal set. And the fourth terminal set satisfies at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers and the subcarrier spacing is f _sc1 , and the terminal included in the second terminal set supports simultaneous transmission of multiple subcarriers. And the terminal with the subcarrier spacing is f _sc2 , the terminal included in the third terminal set is a terminal supporting only a single subcarrier transmission and the subcarrier spacing is f _sc3 , and the terminal included in the fourth terminal set is only supporting a single subcarrier transmission and the sub The terminal with the carrier spacing is f _sc4 ; the terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data and the subcarrier spacing is f _sc1 , and the second terminal set includes terminals that use multiple subcarriers to transmit uplink data and carrier spacing for f _sc2 set includes a terminal, a third terminal is a terminal using a single subcarrier, and the subcarrier for transmitting uplink data between F _sc3 terminal; and a fourth set of terminals including a terminal for the use of a single subcarrier for transmitting uplink data and the subcarrier spacing f _sc4 terminal; a first set of terminals including a terminal using a plurality of sub-carrier transmission and the subcarrier spacing message Msg3 For the terminal of the f _sc1 , the terminal included in the second terminal set is a terminal that transmits the Msg3 message by using multiple subcarriers and the subcarrier spacing is f _sc2 , and the terminal included in the third terminal set transmits the Msg3 message by using a single subcarrier and the subcarrier spacing For the terminal of the f _sc3 , the terminal included in the fourth terminal set is a terminal that transmits the Msg3 message by using a single subcarrier and the subcarrier spacing is f _sc4 ; the terminal included in the first terminal set is the Msg3 message bearer transmitted on multiple subcarriers and the sub The terminal with the carrier spacing is f _sc1 , and the terminal included in the second terminal set is a terminal that transmits the Msg3 message on multiple subcarriers and the subcarrier spacing is f _sc2 , and the terminal included in the third terminal set is that the Msg3 message is only carried in a single sub A terminal that transmits a carrier and has a subcarrier spacing of f _sc3 , and the terminal included in the fourth terminal set is a Msg3 message that is only carried in a single subcarrier. A terminal that transmits a wave and has a subcarrier spacing of f _sc4 ; the terminal included in the first terminal set is a terminal that carries information in the Msg3 message is Size1, and the terminal included in the second terminal set is that the amount of information carried in the Msg3 message is Size2 The terminal includes a terminal that is a terminal that has a quantity of information carried in the Msg3 message, and a terminal that is included in the fourth terminal set is a terminal that has an information amount of Size4 in the Msg3 message, where Size1, Size2, Size3 Size4 is not equal to each other. It should be noted that the foregoing several terminal set division manners are only a few examples, and other reasonable division manners may also be used to divide the terminal set. In the above embodiment, the values of f _sc1 and f _{sc2 are} different. For example, f _sc1 can take a value of 15 kHz, and f _sc2 can take a value of 3.75 kHz; the above f _sc3 and f _{sc4 have} different values, for example, f _sc3 can be The value is 15 kHz, and f _sc4 can be 3.75 kHz.

In an optional embodiment, the types of the J sequences in the sequence set may be multiple. The following describes the types of the sequences in the sequence set: the sequence of the J sequences whose lengths are all N meets the following At least one of the J sequences having a length of N is an orthogonal codeword sequence; the sequence of J sequences having a length of N is a quasi-orthogonal codeword sequence; and the sequence of J sequences having a length of N is predefined. sequence.

In an alternative embodiment, the above

The following is an example of each sequence in a sequence set:

Any three of them;

C is a constant,

In an optional embodiment, when the sequence corresponding to the terminal is

The generating module 384 may generate a random access signal by determining a subcarrier indexed as f _n in the frequency domain and occupying consecutive K symbol transmissions in the time domain.

Where 0 ≤ k ≤ K-1; at least according to

Determine the random access signal.

In an optional embodiment, the generating module 384 may be configured as follows.

Determine the random access signal:

The corresponding time domain expression is

Where 0 _≤ t _≤ T _k , T _k is the length of the kth time domain symbol,

Corresponding time domain

The expression is

The time domain expression is

At least according to the above

Determine the random access signal.

In an optional embodiment, the generating module 384 may be based on at least

Determining the random access signal: generating a cyclic prefix CP _n according to the following equation, CP _n ={S _n [QK-L+1],...,S _n [QK]}, where L represents a time domain sample included in CP _n The number of intervals T _s ; then the expression of the random access signal transmitted by the terminal on the subcarrier f _n is Group _n = {CP _n , S _n }, and the terminal is in the subcarrier f ₀ , f ₁ , ..., f The expression of the random access signal transmitted on _N-1 is {Group ₀ , Group ₁ , ... Group _N-1 }; wherein Group _{n with} different values of _n occupy different symbols in the time domain.

In an optional embodiment, Group ₀ to Group _N-1 are unit units constituting the random access signal, and the sending module 386 may send a random access signal to the base station by: determining that a unit is random access. Signaling, and repeating the random access signal for H times; and/or, repeating the unit H times in the time domain to form a random access signal, and transmitting the random access signal.

In an optional embodiment, after the terminal sends the random access signal Group _n on the sub-carrier f _n , the interval of the time length Gap needs to be introduced, where the terminal is no longer in the interval of the Gap interval. The random access signal after the group _{n is} sent, and the terminal continues to send the random access signal after the group _n after the interval of the time length of the gap.

In an alternative embodiment,

or

Or N _gap = Y / y.

In an alternative embodiment, end = start + y-1.

In an optional embodiment, after the terminal sends a random access signal of a unit, the terminal needs to introduce a time interval of Gap, where the terminal does not send the unit after the time interval is Gap. The random access signal, the terminal continues to send the random access signal after the unit after the interval of the time length of Gap.

In an alternative embodiment,

or

Or N _gap = Y / y.

In an alternative embodiment, end = start + y-1.

In an optional embodiment, when N=4, K=5, H=1, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75 kHz. The time domain length of Gap is 18432*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 8192*Ts, and random access is sent. When the subcarrier spacing or subcarrier bandwidth of the signal is 3.75 kHz, the time domain length of Gap is 6144*Ts or 36864*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H= 4. The time domain length of CP _n is 8192*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; and / Or, when N=4, K=5, H=8, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=16, the time domain length of CP _n is 8192*Ts, and the subcarrier spacing or sub-send of the random access signal is transmitted. When the carrier bandwidth is 3.75kHz, the time domain of Gap is long. To 18432 * Ts, where, Ts = 32.55ns; and / or, if N = 4, K = 5, H = 1, the length of the time domain CP _n is 2048 * Ts, transmitting a random access signal or subcarrier spacing When the subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 2048. *Ts, when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*Ts, where Ts=32.55 ns; and/or, when N=4, K=5 , H=4, the time domain length of CP _n is 2048*Ts. When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55 ns. And/or, when N=4, K=5, H=8, the time domain length of CP _n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, Gap time The length of the field is 6144*Ts or 36864*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=16, the time domain length of CP _n is 2048*Ts, and random access is sent. When the subcarrier spacing or subcarrier bandwidth of the signal is 3.75 kHz, G The time domain length of ap is 12288*Ts, where Ts=32.55 ns; and/or, when N=4, K=5, H=1, the time domain length of CP _n is 266.7us, and the random access signal is transmitted. When the subcarrier spacing or subcarrier bandwidth is 3.75 kHz, the time domain length of Gap is 0.6 ms; and/or, when N=4, K=5, H=2, the time domain length of CP _n is 266.7us, and the transmission is random. When the subcarrier spacing or subcarrier bandwidth of the access signal is 3.75 kHz, the time domain length of Gap is 0.2 ms or 1.2 ms; and/or, when N=4, K=5, H=4, the time domain of CP _n The length is 266.7us. When the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75kHz, the time domain length of Gap is 0.4ms; and/or, when N=4, K=5, H=8, CP The time domain length of _n is 266.7us, and the time domain length of Gap is 0.8ms when the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz; and/or, when N=4, K=5, H =16, the time domain length of CP _n is 266.7us, and the time domain length of Gap is 0.6ms when the subcarrier spacing or subcarrier bandwidth for transmitting random access signals is 3.75kHz; and/or, when N=4, K =5, H=1, the time domain length of CP _n is 66.7us When the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.4 ms; and/or, when N=4, K=5, H=2, the time domain of CP _n The length is 66.7us. When the subcarrier spacing or subcarrier bandwidth for transmitting the random access signal is 3.75kHz, the time domain length of Gap is 0.8ms; and/or, when N=4, K=5, H=4, CP The time domain length of _n is 66.7us, and when the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.6 ms; and/or, when N=4, K=5, H =8, the time domain length of CP _n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms; and/or when N= 4, K=5, H=16, the time domain length of CP _n is 66.7us, and the sub-carrier spacing or sub-carrier bandwidth of the random access signal is 3.75 kHz, and the time domain length of Gap is 0.4 ms.

In an optional embodiment, the sending module 386 may send a random access signal to the base station by: determining a random access channel for transmitting the random access signal; and sending a random connection to the base station by using a random access channel. Into the signal. In this embodiment, the random access channel used by the terminal to perform random access signal transmission may be part of a random access channel resource, and the random access channel resource may include multiple random accesses for different terminals. A random access channel for signal transmission.

Alternatively, the U bit information indicating a frequency domain location of the terminal or group of terminals assigned the same level Set _m, wherein the different levels of the same terminal configuration of the frequency domain position Set _m, U = 2 or 4 .

In the foregoing embodiment, when N=4, K=5, when Set _m is 7 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms; when N=4, K=5 When Set _m has a length of 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=8, K=5, when Set _{m is} 26 ms in the time domain, the random connection is performed. The inbound channel resource includes a guard time of 0.4 ms; when N=4, K=5, when the set _m is 6 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms; when N=4, K =5, when Set _m is 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms; when N=8, K=5, when Set _m is 12 ms in the time domain, the above The random access channel resource includes a guard time of 0.8 ms; when N=4, K=5, when the set _{m is} 17 ms in the time domain, the random access channel resource includes a guard time of 0.2 ms; when N=4 When K=5, when the length of Set _m is 23 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms; when N=8, K=5, Set _{m is} in time. When the length of the domain is 23 ms, the random access channel resource includes a guard time of 0.6 ms; when N=4, K=5, when the set _m is 34 ms in the time domain, the random access channel resource includes 0.4 ms. The guard time; when N=8, K=5, when the set _m is 34 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms.

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals. Optionally, the foregoing G may be the number of levels of the terminal configured by the base station, or may be the number of levels of the terminal that sends the random access signal on the Set _m resource.

It can be calculated according to the following formula:

Set _m corresponding to the terminal whose index is g, 0 ≤ g ≤ G-1.

Resources.

Two adjacent in the resource

The time domain interval is L _g second time units, where L _g ≥ 0.

The resource corresponds to another level of terminal

The interval between resources is L _β second time units.

Between resources, the interval L _{g is} a second time unit.

The first in the resource

Time domain starting resource location with the stated

The first in the resource

Time domain starting resource location with the stated

In an optional embodiment, terminals of different levels of index correspond to

the same.

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.

In an alternative embodiment, the value of F above is {12, 24, 36, 48}.

Is the rounding operation operator.

In an alternative embodiment,

Is the rounding operation operator.

In an optional embodiment, the apparatus further includes a random access response receiving module, configured to: after the terminal sends the random access signal to the base station, the receiving base station detects the random access signal, according to the detection result. And the received random access response message, where the random access response message includes at least one of the following information: subcarrier spacing indication information; configured subcarrier number indication information. In this embodiment, the subcarrier spacing indication information may be used to indicate the subcarrier spacing configuration when the Msg3 message is sent.

In an optional embodiment, the foregoing subcarrier spacing indication information and the configured subcarrier number indication information are connected Coding mode indication.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The terminal selects a sequence corresponding to the terminal in the sequence set;

S2. The foregoing terminal generates a random access signal according to at least a corresponding sequence.

S3. The terminal sends the random access signal to the base station.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs the above steps according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, an access processing method and apparatus provided by the embodiments of the present invention have the following beneficial effects: solving the problem that the related technologies cannot ensure that all types of terminals successfully access the system, thereby implementing various Types of terminals can successfully access the system.

Claims

An access processing method includes:

The terminal selects a sequence corresponding to the terminal in the sequence set;

Generating, by the terminal, a random access signal according to at least the corresponding sequence;

The terminal sends the random access signal to a base station.
The method according to claim 1, wherein said sequence set comprises J sequences of sequence length N, wherein the sequence of index j is expressed as
0 ≤ j ≤ J-1, 0 ≤ n ≤ N-1, J is a positive integer, and N is a positive integer.
The method of claim 2, wherein the set of sequences comprises R sequence subsets, the R sequence subsets being configured for different sets of terminals; wherein R is a positive integer.
The method according to claim 3, wherein the sequence corresponding to the terminal in the terminal selection sequence set comprises:

Determining, by the terminal, a sequence sub-set corresponding to the terminal set to which the UE belongs, from the R sequence sub-sets;

The terminal selects a sequence from the determined sequence subset as the corresponding sequence.
The method according to claim 4, wherein the determining, by the terminal, the sequence subset corresponding to the terminal set to which the terminal belongs is determined by the terminal from the R sequence subsets includes:

The terminal selects the (Y+1)th sequence sub-set from the R sequence subsets as a sequence subset corresponding to the terminal set to which the UE belongs, where Y=Mod(Cell ID, R), and the Cell ID is The cell identification index of the terminal access.
The method of claim 3, wherein the R sequence subsets are each configured for R different terminal sets.
The method of claim 3, comprising at least one of the following:

When the number of terminal sets is 2, the two different terminal sets are the first terminal set and the second terminal set, and the first terminal set and the second terminal set satisfy at least one of the following conditions: the first The terminal set includes a terminal that supports simultaneous transmission of multiple subcarriers, and the terminal included in the second terminal set is a terminal that supports only a single subcarrier transmission; the terminal included in the first terminal set is transmitted by using multiple subcarriers. a terminal of the uplink data, and the terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier; the terminal included in the first terminal set is a terminal that simultaneously transmits an Msg3 message by using multiple subcarriers, and the terminal The terminal included in the second terminal set is a terminal that transmits an Msg3 message by using a single subcarrier; the terminal included in the first terminal set is a terminal that the Msg3 message carries on a plurality of subcarriers, and the terminal that is included in the second terminal set The Msg3 message is only carried in the terminal of the single subcarrier transmission; the first terminal set includes the terminal to support a single subcarrier. And a transmission subcarrier spacing f sc1 terminal, the second set of terminals including a terminal support and a single sub-carrier transmission subcarrier spacing f sc2 terminal; the first set of terminals including a terminal employing a single subcarrier a terminal that transmits uplink data and has a subcarrier spacing of f sc1 ; the terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier and has a subcarrier spacing of f sc2 ; the terminal included in the first terminal set is a terminal that transmits an Msg3 message with a single subcarrier and has a subcarrier spacing of f sc1 , where the terminal included in the second terminal set is a terminal that transmits an Msg3 message by using a single subcarrier and has a subcarrier spacing of f sc2 ; the first terminal set The terminal included is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f sc1 , and the second terminal set includes a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f sc2 . a terminal that is included in the first terminal set is a terminal that has a quantity of information carried in the Msg3 message, and the second terminal set includes End of message information carried in Msg3 size2 terminal, wherein, Size1 is not equal size2;

When the number of terminal sets is 3, the three different terminal sets are a first terminal set, a second terminal set, and a third terminal set, the first terminal set, the second terminal set, and the third terminal. The set meets at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers, and the second terminal set includes terminals that support only a single subcarrier transmission and the subcarrier spacing is f sc1 The terminal included in the third terminal set is a terminal that supports only a single subcarrier transmission and the subcarrier spacing is f sc2 ; the terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data. The terminal included in the second terminal set is a terminal that transmits uplink data by using a single subcarrier and has a subcarrier spacing of f sc1 ; the terminal included in the third terminal set transmits uplink data by using a single subcarrier and the subcarrier spacing is f sc2 The terminal included in the first terminal set is a terminal that transmits an Msg3 message by using multiple subcarriers, and the second terminal set includes End for the introduction of a single subcarrier message Msg3 transmission and subcarrier spacing f sc1 terminal, the third terminal is a terminal set includes a single subcarrier using message Msg3 transmission and the subcarrier spacing f sc2 terminal; the first The terminal set includes a terminal that is a Msg3 message that is transmitted on a plurality of subcarriers, and the second terminal set includes a terminal that is a Msg3 message that is only carried in a single subcarrier transmission and has a subcarrier spacing of f sc1 . The terminal included in the three-terminal set is a terminal in which the Msg3 message is only carried in a single sub-carrier transmission and the sub-carrier spacing is f sc2 ; the terminal included in the first terminal set is a terminal in which the amount of information carried in the Msg3 message is Size1, The terminal included in the second terminal set is a terminal that has the information amount of the S2 in the Msg3 message, and the terminal included in the third terminal set is a terminal that has the information amount of the S3 in the Msg3 message, where Size1, Size2, and Size3 are mutually not equal;

When the number of terminal sets is 4, the four different terminal sets are a first terminal set, a second terminal set, a third terminal set, and a fourth terminal set, the first terminal set, the second terminal set, The third terminal set and the fourth terminal set meet at least one of the following conditions: the terminal included in the first terminal set is a terminal that supports simultaneous transmission of multiple subcarriers and has a subcarrier spacing of f sc1 , and the second The terminal set includes a terminal that supports simultaneous transmission of multiple subcarriers and a subcarrier spacing of f sc2 , and the terminal included in the third terminal set is a terminal that supports only a single subcarrier transmission and has a subcarrier spacing of f sc3 . The terminal included in the fourth terminal set is a terminal that supports only a single subcarrier transmission and the subcarrier spacing is f sc4 ; the terminal included in the first terminal set is a terminal that uses multiple subcarriers to transmit uplink data and the subcarrier spacing is f sc1 said second set of terminals including a terminal using a plurality of subcarriers to transmit the uplink data and the sub-carrier spacing f sc2 terminal, the third terminal set comprises Using a single terminal is transmitting uplink data subcarriers and subcarrier spacing f sc3 terminal; a fourth set of terminals including the terminal is using a single subcarrier for transmitting uplink data and the subcarrier spacing f sc4 terminal; the first The terminal included in the terminal set is a terminal that uses a plurality of subcarriers to transmit an Msg3 message and the subcarrier spacing is f sc1 , and the terminal included in the second terminal set is a terminal that uses a plurality of subcarriers to transmit an Msg3 message and the subcarrier spacing is f sc2 . The terminal included in the third terminal set is a terminal that transmits an Msg3 message by using a single subcarrier and has a subcarrier spacing of f sc3 , and the terminal included in the fourth terminal set transmits a Msg3 message by using a single subcarrier and the subcarrier spacing is f. a terminal of the sc4 ; the terminal included in the first terminal set is a terminal in which the Msg3 message is transmitted on multiple subcarriers and the subcarrier spacing is f sc1 , and the terminal included in the second terminal set is a Msg3 message carried on multiple subcarriers. a terminal that transmits and has a subcarrier spacing of f sc2 , and the third terminal set includes a terminal that the Msg3 message is carried only on a single subcarrier. a terminal that transmits and has a subcarrier spacing of f sc3 , where the terminal included in the fourth terminal set is a terminal in which the Msg3 message is only carried in a single subcarrier transmission and the subcarrier spacing is f sc4 ; the terminal included in the first terminal set is The terminal that is included in the Msg3 message is the terminal of the Size1, and the terminal that is included in the second terminal set is the terminal that has the information amount of the S2 in the Msg3 message, and the terminal included in the third terminal set is the information carried in the Msg3 message. The terminal of the third terminal set is a terminal that is in the Msg3 message and whose amount of information is Size4, where Size1, Size2, Size3, and Size4 are not equal to each other.
The method according to any one of claims 2 to 7, wherein the sequence of J sequences having a length of N satisfies at least one of the following:

The sequence in which the J sequences are all N in length is an orthogonal codeword sequence;

The sequence in which the J sequences are all N in length is a quasi-orthogonal codeword sequence;

The sequence in which the J sequences are all N in length is a predefined sequence.
The method according to any one of claims 2 to 7, wherein said
Meet at least one of the following:

Different values of j corresponding to Code j
Mutual orthogonal code words, or mutually quasi-orthogonal code words;

Different values of j corresponding to Code j
Mutual orthogonal code words, or mutually quasi-orthogonal code words;

Different values of j corresponding to Code j
They are orthogonal code words, or mutually quasi-orthogonal code words, where 0 ≤ i ≤ N / 2-1.
The method according to claim 8 or 9, wherein the value of N is one of the following: 2, 4, 6, 8.
The method according to claim 2, wherein when J = 1, and N = 4, the sequence of J sequences of length N includes at least one of the following:

Among them, A is
C is a constant,
The method according to any one of claims 3 to 7, wherein at least one of the following is included:

When J=1, and N=4, the J sequence sequence length N includes at least one of the following:

When R=2, J=2, and N=4, the sequence of J sequence lengths of N includes at least one of the following:

Wherein one of Code 0 and Code 1 is configured to the terminal in the first terminal set, and the other is configured to the terminal in the second terminal set;

When R=2, J=2, and N=8, the sequence of J sequence lengths of N includes at least one of the following:

Wherein one of Code 0 and Code 1 is configured to the terminal in the first terminal set, and the other is configured to the terminal in the second terminal set;

When R=3, J=3, and N=4, the sequence of J sequences of length N includes at least one of the following:

Any three of them;

Any three of them; wherein three sequences of sequence length N are respectively allocated to terminals in three terminal sets;

When R=4, J=4, and N=4, the sequence of J sequence lengths of N includes at least one of the following:

Wherein, four sequences of sequence length N are respectively allocated to terminals in the four terminal sets;

Among them, A is
C is a constant,
The method according to any one of claims 2 to 12, wherein when the sequence corresponding to the terminal is
And generating, by the terminal, the random access signal according to the corresponding sequence at least:

The terminal determines a subcarrier indexed as f n in the frequency domain and occupies consecutive K symbols in the time domain.
The frequency domain expression of the signal transmitted on the kth symbol and on the subcarrier f n is
The frequency domain expression of the K symbol and the signal transmitted on the subcarrier f n is
Where 0 ≤ k ≤ K-1;

Said terminal according to at least said
Determining the random access signal.
The method of claim 13 wherein said terminal is based at least on said
Determining the random access signal includes:

The corresponding time domain expression is
Where 0 ≤ t ≤ T k , T k is the length of the kth time domain symbol,
For the frequency domain resource occupied by the subcarrier indexed as f n , F Offset is the frequency domain offset; and/or,

When the domain sampling interval is T s ,
Corresponding time domain
The expression is
Where 0 ≤ t ≤ T k , T k is the length of the kth time domain symbol, 0 ≤ k ≤ K-1, 0 ≤ q ≤ Q-1,
Number of samples in the time domain; the terminal is sent on consecutive K symbols
The time domain expression is

Said terminal according to at least said
Determining the random access signal.
The method of claim 14, wherein the terminal is at least according to the
Determining the random access signal includes:

The terminal generates a cyclic prefix CP n , CP n ={S n [QK-L+1],...,S n [QK]} according to the following formula, where L represents the number of time domain sampling intervals T s included in the CP n ;

The expression of the random access signal sent by the terminal on the subcarrier f n is Group n = {CP n , S n }, and the terminal is on the subcarriers f 0 , f 1 , ..., f N-1 The expression of the random access signal sent is {Group 0 , Group 1 , ... Group N-1 };

Among them, Group n with different values of n occupy different time domain symbols in the time domain.
The method according to claim 15, wherein the group 0 to the group N-1 are the unit units constituting the random access signal, and the terminal transmitting the random access signal to the base station includes:

Determining, by the terminal, that the unit is the random access signal, and repeating the random access signal for H times; and/or,

The terminal repeats the H times in the time domain to form the random access signal, and sends the random access signal.
The method of claim 16 wherein

After completion of the terminal transmits a random access signal on sub-carriers Group n f n, the length of time necessary to introduce the interval Gap.
The method of claim 17 comprising at least one of:

When N=4, K=5, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of the Gap is 0.4 ms;

When N=4, K=5, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of the Gap is 0.6 ms;

When N=4, K=5, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts=32.55ns;

When N=4, K=5, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts = 32.55 ns.
The method of claim 16 wherein

The H repetitions of the Unit include Y groups, and the indexes defining the Y groups are Group 0 to Group Y-1 , where Y=H*N; when the terminal completes Group start to Group end, a total of y Groups After the random access signal is sent, it is necessary to introduce an interval of time Gap;

Among them, 0 ≤ start ≤ end ≤ Y-1, y ≤ Y.
The method of claim 19, wherein

Start=offset+y×N gap , where N gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first group start ; or

Start=y×N gap , where N gap is the number of intervals in which the introduction time length is Gap.
The method of claim 20, wherein
or
Or N gap = Y / y.
The method according to any one of claims 19 to 21, wherein end = start + y-1.
The method of claim 19, wherein the Gap satisfies at least one of the following conditions:

y×L_G+Gap=T×TimeUnit, where L_G is the length of time of the group, Gap ≥ 0, T is a positive integer, and TimeUnit is a unit of measure of time length;

y×L_G+Gap=T×TimeUnit, where L_G is the length of time of the group, Gap ≥ 0, T is a positive integer and T is a minimum value satisfying T×TimeUnit>y×L_G, and TimeUnit is a time length Unit of measure.
The method of claim 16 wherein

After the terminal completes the random access signal of the unit, it needs to introduce an interval of time Gap.
The method of claim 24, comprising at least one of the following:

When N=4, K=5, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of the Gap is 0.6 ms;

When N=4, K=5, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of the Gap is 0.4 ms;

When N=4, K=5, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*Ts, where Ts=32.55ns;

When N=4, K=5, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*Ts, where Ts = 32.55 ns.
The method of claim 16 wherein

The H-repetition index of the unit is defined as Unit 0 to Unit H-1 . After the terminal completes the unit start to unit end and sends a total of y units of random access signals, it is necessary to introduce an interval of time Gap.

Among them, 0 ≤ start ≤ end ≤ Y-1, y ≤ Y.
The method of claim 26, wherein

Start=offset+y×N gap , where N gap is the number of intervals in which the length of the introduction time is Gap; offset is the offset of the index of the first unit start ; or

Start=y×N gap , where N gap is the number of intervals in which the introduction time length is Gap.
The method of claim 27, wherein
or
Or N gap = Y / y.
A method according to any one of claims 26 to 28, wherein end = start + y-1.
The method of claim 26, wherein the Gap satisfies at least one of the following conditions:

y×L_U+Gap=T×TimeUnit, where L_G is the length of time of the unit, gap≥0, T is a positive integer, and TimeUnit is a unit of measure of time length;

y×L_U+Gap=T×TimeUnit, where L_G is the length of time of the unit, Gap ≥ 0, T A positive integer and T is the minimum value that satisfies T×TimeUnit>y×L_U, which is a unit of measure of time length.
A method according to any one of claims 26 to 29, comprising at least one of the following:

When N=4, K=5, H=1, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=2, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 6144*. Ts or 36864*Ts, where Ts=32.55 ns;

When N=4, K=5, H=4, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=8, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=16, the time domain length of CP n is 8192*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=1, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=2, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 24576*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=4, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 18432* Ts, where Ts=32.55 ns;

When N=4, K=5, H=8, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 6144*. Ts or 36864*Ts, where Ts=32.55 ns;

When N=4, K=5, H=16, the time domain length of CP n is 2048*Ts, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 12288*. Ts, where Ts=32.55 ns;

When N=4, K=5, H=1, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.6 ms;

When N=4, K=5, H=2, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms;

When N=4, K=5, H=4, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.4 ms;

When N=4, K=5, H=8, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.8 ms;

When N=4, K=5, H=16, the time domain length of CP n is 266.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.6 ms;

When N=4, K=5, H=1, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.4ms;

When N=4, K=5, H=2, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.8 ms;

When N=4, K=5, H=4, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.6 ms;

When N=4, K=5, H=8, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75kHz, the time domain length of Gap is 0.2ms or 1.2ms;

When N=4, K=5, H=16, the time domain length of CP n is 66.7us, and the subcarrier spacing or subcarrier bandwidth of the random access signal is 3.75 kHz, the time domain length of Gap is 0.4 ms.
The method of claim 16 wherein the value of H is determined at least according to a level of the terminal.
The method of claim 32, wherein the rating of the terminal comprises at least one of:

Coverage enhancement level;

Physical channel repeat transmission level;

Repeated transmission level of messages or signaling carried on the physical channel.
The method of claim 16, wherein the transmitting, by the terminal, the random access signal to the base station comprises:

Determining, by the terminal, a random access channel for transmitting the random access signal;

Transmitting, by the terminal, the random access signal to the base station by using the random access channel.
The method of claim 34, wherein the random access channel resource comprises one or more time-frequency resource sets Set m, wherein F comprises the Set m subcarriers or subchannels in the frequency domain, in time domain The length is at least the length of P units, m is the index of the Set m in the time domain, F is a positive integer, and P is a positive integer.
The method according to claim 35, wherein said Set m comprises P subset subsets, wherein said subset is configured in the frequency domain with the same subcarriers as said Set m , said subset being length in time domain The length of 1 unit.
The method of claim 35, wherein

When the subcarrier spacing is 3.75 kHz and F=12, a 7.5 kHz protection bandwidth is configured on each of the frequency resources before and after the frequency resource occupied by the Set m ; and/or,

When the subcarrier spacing is 3.75 kHz and F=16, the upper and lower sidebands each reserve a 7.5 kHz protection bandwidth in the frequency resources occupied by the Set m .
The method according to claim 35, wherein when the uplink bandwidth comprises 48 subcarriers, and F=12, the uplink bandwidth is configured with a maximum of 4 Set m , and each Set m includes F=12 subcarriers in the frequency domain or Subchannels, different Set m subcarriers or subchannels included in the frequency domain do not overlap.
The method according to claim 38, wherein, the U bit information indicating a frequency domain location of the terminal or group of terminals assigned the same level Set m, wherein the different levels of the same terminal configuration of the frequency domain position Set m , U=2 or 4.
The method according to claim 35, wherein when the uplink bandwidth comprises 48 subcarriers, and F=16, the uplink bandwidth is configured with a maximum of 3 Set m , and each Set m includes F=16 subcarriers in the frequency domain or Subchannels, different Set m subcarriers or subchannels included in the frequency domain do not overlap.
The method according to claim 40, wherein, the U bit information indicating a frequency domain location of the terminal or group of terminals assigned the same level Set m, wherein the different levels of the same terminal configuration of the frequency domain position Set m , U=2 or 3.
The method of claim 35, comprising at least one of the following:

When N=4, K=5, the set m has a length of 7 ms in the time domain, and the time domain length of the CP n is 266.7 us, P=1;

When N=4, K=5, the set m has a length of 13 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=2;

When N=8, K=5, the set m has a length of 13 ms in the time domain, and the time domain length of the CP n is 266.7 us, P=1;

When N=4, K=5, the set m has a length of 26 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=4;

When N=8, K=5, the set m has a length of 26 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=2;

When N=4, K=5, the set m has a length of 32 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=5;

When N=4, K=5, the set m has a length of 64 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=10;

When N=8, K=5, the set m has a length of 64 ms in the time domain, and the time domain length of the CP n is 266.7 uss, P=5;

When N=4, K=5, the set m has a length of 6 ms in the time domain, and the time domain length of the CP n is 66.7 us, P=1;

When N=4, K=5, the set m has a length of 12 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=2;

When N=8, K=5, the set m has a length of 12 ms in the time domain, and the time domain length of the CP n is 66.7 us, P=1;

When N=4, K=5, the set m has a length of 17 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=3;

When N=4, K=5, the set m has a length of 23 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=4;

When N=8, K=5, the set m has a length of 23 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=2;

When N=4, K=5, the set m has a length of 28 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=5;

When N=4, K=5, the set m has a length of 34 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=6;

When N=8 and K=5, the set m has a length of 34 ms in the time domain, and the time domain length of the CP n is 66.7 uss, P=3.
The method of claim 42 comprising at least one of the following:

When N=4, K=5, when the set m is 7 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms;

When N=4, K=5, when the set m is 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms;

When N=8, K=5, when the set m is 26 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms;

When N=4, K=5, when the set m is 6 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms;

When N=4, K=5, when the set m is 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms;

When N=8, K=5, when the set m is 12 ms in the time domain, the random access channel resource includes a guard time of 0.8 ms;

When N=4, K=5, when the set m is 17 ms in the time domain, the random access channel resource includes a guard time of 0.2 ms;

When N=4, K=5, when the set m is 23 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms;

When N=8, K=5, when the set m is 23 ms in the time domain, the random access channel resource includes a guard time of 0.6 ms;

When N=4, K=5, when the set m is 34 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms;

When N=8, K=5, when the set m has a length of 34 ms in the time domain, the random access channel resource includes a guard time of 0.4 ms.
The method according to any one of claims 35, 38 to 41, wherein V first time units are spaced between two Set m adjacent to each other in the time domain, wherein V is an integer, the first time unit Including at least one of: time domain length of one or more frames, time domain length of one or more subframes, Z 1 second, Z 2 milliseconds, time domain length of Z 3 Set m , time of Z 4 Units The length of the domain, wherein Z 1 , Z 2 , Z 3 , and Z 4 are all positive integers.
The method according to claim 36, wherein V first time units are adjacent between two Set m adjacent to each other, wherein V is an integer, and said first time unit includes a time domain of Z 5 subsets Length, where Z 5 is a positive integer.
A method according to claim 44 or 45, comprising at least one of the following:

The value of V includes at least one of the following: V=0; V=2 y , where y is an integer greater than or equal to 0;

The V first time units are continuously distributed or discretely distributed in the time domain;

The two Set m adjacent to the time domain occupy the same F subcarriers or subchannels in the frequency domain.
The method according to any one of claims 35, 38 to 41, wherein the configuration period of Set m is L first time units, wherein L is a positive integer, and the first time unit comprises at least one of the following : the time domain length of one or more frames, the time domain length of one or more subframes, Z 1 second, Z 2 milliseconds, the time domain length of Z 3 Set m , the time domain length of Z 4 units, wherein Z 1 , Z 2 , Z 3 and Z 4 are all positive integers.
A method according to claim 36, wherein, Set m arranged a first period of L time units, where, L is a positive integer, the unit includes first time domain length of a subset of Z 5, Z 5 is A positive integer.
A method according to claim 47 or 48, wherein L = 2 z , wherein z is an integer greater than or equal to zero.
The method of claim 49, comprising at least one of the following:

The 2 z first time units are continuously distributed or discretely distributed in the time domain;

The value of z is {0,1,2,3,4,5,6,7};

Two Set m adjacent in the time domain occupy the same F subcarriers or subchannels in the frequency domain.
A method according to any one of claims 36,47,48,49,50, wherein L configuration. 1 and a maximum of the subset disposed within said period of Set m, indexes for the subset to subset subset0 (L 1 -1), wherein the subset configuration scheme corresponding to the terminal with the level index g includes: the terminal with the level index g sends the unit to repeat the Repetition g times in the time domain, and the configuration in one of the Set m During the period, consecutive Repetition g subsets are configured for the terminal with the level index g, and the starting subset index StartingSubsetIndex g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.
The method according to claim 51, wherein between the configuration periods of the different Set m , the subset configuration scheme corresponding to the terminal with the level index g is the same.
A method according to any one of claims 36,47,48,49,50, wherein L configuration. 1 and a maximum of the subset disposed within said period of Set m, indexes for the subset to subset subset0 (L 1 -1), wherein the subset configuration scheme corresponding to the terminal with the level index g includes: the terminal with the level index g sends the unit to repeat the Repetition g times in the time domain, and the level index is g The terminal is configured with consecutive ChanceNum g ×Repetition g subsets, where ChanceNum g ≥1.
The method according to claim 53, wherein, in a configuration period of said Set m , said starting subset index StartingSubsetIndex g in said ChanceNum g ×Repetition g subsets is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.
The method according to claim 54, wherein the starting subset index is ChanceNum g × Repetition g subsets of StartingSubsetIndex g , and the first transmission resource is configured with ChanceNum g , wherein the first sending resource is used for the Unit repeats Repetition g times in the time domain.
The method of claim 55, wherein the starting index of the subset of first transmission resource ChanceNum g in the c-th first transmission resources
Calculate according to the following formula:
A method according to any one of claims 36,47,48,49,50, wherein L configuration. 1 and a maximum of the subset disposed within said period of Set m, indexes for the subset to subset subset0 (L 1 -1), wherein the subset configuration scheme corresponding to the terminal with the level index g includes: the terminal with the level index g sends the unit to repeat the Repetition g times in the time domain, and the level index is g The terminal is configured with ChanceNum g ×Repetition g subsets, and ChanceNum g ≥1.
The method according to claim 57, wherein, in a configuration period of said Set m , an index of said ChanceNum g × Repetition g subsets is subset0 to subset (ChanceNum g × Repetition g -1), and from subset0 starts, a continuous index repetition g a subset of a first transmission resource, wherein the first transmission resource for the Unit on a time domain repetition times sent repetition g, within a repetition g of the first transmission resource The subsets are continuously distributed in the time domain, and different subsets corresponding to the first sending resource are discretely distributed in the time domain.
The method according to any one of claims 36, 47, 48, 49, 50, wherein the first transmission resource corresponding to the terminals of the G levels is included in the configuration period of the Set m , wherein the level index is The first transmission resource corresponding to the terminal of the g is used by the unit to repeat the Repetition g transmission in the time domain, and the size of the first transmission resource corresponding to the terminal with the level index g is N g
Set m corresponding to the terminal whose index is g, 0 ≤ g ≤ G-1.
The method according to claim 59, wherein, in the configuration period of said Set m , the terminals are sequentially assigned N g in order of rank index g from small to large.
Resources.
The method according to claim 59, wherein N g ≥ 1 or N g ≥ 0, and when N g =0, indicating that the terminal corresponding to the level index g is not configured in the configuration period of the Set m The first transmission resource is described.
The method according to claim 59, wherein, in the configuration period of said Set m , N g configured for a terminal having a level index of g
Two adjacent in the resource
The time domain interval is L g second time units, where L g ≥ 0.
The method according to claim 62, wherein the same index different levels corresponding to the terminal L g.
The method according to claim 59, wherein, in the configuration period of the Set m , N g of terminals of different level indexes are corresponding
Between resources, the interval L β is a second time unit, where L β ≥ 0.
The method according to claim 62 or 63, wherein, in the configuration period of the Set m , N g of terminals corresponding to different levels of indexing
Between resources, the interval L g is a second time unit.
The method of claim 59, wherein

N g corresponding to the terminal whose rank index is g
The first in the resource
Time domain starting resource location with the stated
The time domain starting resource location is the same during the configuration period; or,

N g corresponding to the terminal whose rank index is g
The first in the resource
Time domain starting resource location with the stated
There is an offset in the time domain starting resource location within the configuration period, wherein the offset is predetermined or configured for the base station.
The method of claim 59, wherein the terminals of different level indexes correspond to
the same.
The length of the time-domain method according to claim 36, wherein the length of the arrangement period Set m is a Set m D, where D is a positive integer.
The method of claim 68, wherein D = 2 x , x is an integer greater than or equal to zero.
The method according to claim 68 or 69, wherein a maximum of D*P of the subsets are configured in a configuration period of the Set m , and an index of the subset is subset0 to subset (D*P-1), wherein The subset configuration scheme corresponding to the terminal with the level index g includes: the terminal with the level index g sends the unit to repeat the Repetition g times in the time domain, and in the configuration period of the Set m , the level index is g. The terminal is configured with consecutive Repetition g subsets, and the starting subset index StartingSubsetIndex g is calculated according to the following formula:

Where 0 ≤ g ≤ G-1, and G is the number of levels of the divided terminals.
The method according to claim 70, wherein between the configuration periods of the different Set m , the subset configuration scheme corresponding to the terminal with the level index g is the same.
The method according to claim 35, wherein when the uplink bandwidth comprises 48 subcarriers with a subcarrier spacing of 3.75 kHz, the subcarrier index is 0 to 47, wherein the index is 0, 1, 14, 15, 16 The subcarriers of 17, 30, 31, 32, 33, 46, 47 are not allocated to the Set m .
The method according to claim 35, wherein when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of the Set m is 2, the index is The subcarriers of 2 to 25 are allocated to the Set m .
The method according to claim 35, wherein when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=36, and the initial subcarrier index of the Set m is 2, the index is The subcarriers of 2 to 37 are allocated to the Set m .
The method according to claim 35, wherein when the uplink bandwidth includes 48 subcarriers, the subcarrier index is 0 to 47, F=24, and the initial subcarrier index of the Set m is 18, the index is The subcarriers of 18 to 41 are allocated to the Set m .
The method according to any one of claims 72 to 75, wherein, among the F subcarriers in the Set m , the proportion of the number of subcarriers Num occupied by the random access channel in the F subcarriers is Ratio, wherein the Ratio is sent by the base station to the terminal by signaling.
The method of claim 76, wherein the value of F is {12, 24, 36, 48}.
The method according to claim 75 or 76, wherein the ratio of the Ratio is {1/6, 2/6, 3/6, 4/6, 5/6, 6/6} or {1/12 , 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/12 , 1/12, 2/12, 3/12, 4/12, 5/12, 6/12, 7/12, 8/12, 9/12, 10/12, 11/12, 12/12} or {0/6, 1/6, 2/6, 3/6, 4/6, 5/6, 6/6}.
The method according to any one of claims 35, 72 to 75, wherein, among the F subcarriers in the Set m , the number of subcarriers occupied by the random access channel for transmitting the random access signal is Num.
The method of claim 79, wherein the value of F is {12, 24, 36, 48}.
The method according to claim 79 or 80, wherein said Num is {4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48} or {3, 6, 9,12,15,18,21,24,27,30,33,36,39,42,45,48} or {0,4,8,12,16,20,24,28,32,36, 40,44,48} or {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48}.
The method according to claim 35, wherein said random access channel in which said terminal transmits said random access signal to said base station is allocated to said terminal by said base station by signaling.
The method of claim 82, wherein the signaling includes at least one of the following information:

Starting level index;

Frequency domain location information of the random access channel allocated by the base station to the terminal;

The time domain location information of the random access channel allocated by the base station to the terminal.
The method according to claim 83, wherein the frequency domain location information of the random access channel allocated by the base station to the terminal comprises:

The subcarrier or subchannel index in which the Group 0 constituting the unit of the random access signal is transmitted.
The method according to claim 83 or 84, wherein when the uplink bandwidth comprises 48 subcarriers or subchannels, the frequency domain location information of the random access channel allocated by the base station to the terminal is indicated by the 6bits indication information.
The method according to claim 85, wherein the 6bits indication information is further used to indicate that the terminal randomly selects one subcarrier among F subcarriers in the Set m as a frequency domain in which the random access channel is located. position.
The method according to claim 83 or 84, wherein when the Set m includes F subcarriers or subchannels,
The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal.
The method of claim 87, wherein said
Indication information indicating that the terminal is further configured to F subcarriers in the Set m in a randomly selected sub-carriers of the frequency domain position of the terminal as a random access channel is located.
The method according to claim 83 or 84, wherein when the Set m includes F subcarriers or subchannels,
The indication information indicates frequency domain location information of the random access channel allocated by the base station to the terminal, where the Num is the number of subcarriers occupied by the random access channel.
The method according to claim 83, wherein the time domain location information of the random access channel allocated by the base station to the terminal comprises:

The configuration period indication information n of the second Set m ;

The Set m where the random access channel allocated by the base station to the terminal is defined as a second Set m ; the second Set m is selected from the first Set m ; and the second Set m The configuration period length is n times the configuration period of the first Set m , and n is a positive integer; the first Set m is one or more time-frequency resource sets Set m , n is positive for the random access channel resource Integer.
The method of claim 90, comprising at least one of the following:

When the value of n is described by 3 bits, the value of n is {1, 2, 3, 4, 5, 6, 7, 8} or {1, 2, 4, 8, 16, 32, 64, 128} Or {1,2,4,8,10,12,14,16};

When the value of n is described by 2 bits, the value of n is {1, 2, 3, 4} or {1, 2, 4, 8} or {1, 4, 6, 8}.
The method according to claim 90 or 91, wherein the time domain location of the random access channel allocated by the base station to the terminal is: the first one of the configuration periods of the second Set m A set of m .
The method according to claim 90 or 91, wherein the time domain location information of the random access channel allocated by the base station to the terminal further includes:

The second location information Offset Set m disposed within said second period of Set m;

Wherein said n first Offset Set m for the configuration of the second period indication Set m, the index information allocated to the random access channel, where the first terminal of the Set m.
The method according to claim 83, wherein the time domain location information of the random access channel allocated by the base station to the terminal comprises:

Two consecutive second Set m time domain interval information Interval;

Set m of the random access channel allocated by the base station to the terminal is defined as a second Set m ; the second Set m is selected from the first Set m , and two second Set m are consecutive set m-frequency resource set first set m shows the random access channel resource comprises one or more; an interval between a first interval set m.
The method according to any one of claims 82 to 94, wherein the signaling further comprises: triggering positioning operation indication information.
The method according to claim 95, wherein, when the trigger positioning operation indication information is a trigger positioning operation, the terminal transmits the random access signal on the random access channel allocated by the signaling.
The method according to claim 1, wherein after the terminal sends the random access signal to the base station, the method further includes:

Receiving, by the terminal, the random access response message that is sent according to the detection result after the base station detects the random access signal, where the random access response message includes at least one of the following information:

Subcarrier spacing indication information;

The configured number of subcarriers indicates information.
The method of claim 97, wherein the subcarrier spacing indication information and the configured subcarrier number indication information are indicated by joint coding.
An access processing device is applied to the terminal, including:

a selection module, configured to select a sequence corresponding to the terminal in the sequence set;

Generating a module, configured to generate a random access signal according to at least the corresponding sequence;

And a sending module, configured to send the random access signal to the base station.