WO2016074132A1

WO2016074132A1 - Information transmission method, device and system

Info

Publication number: WO2016074132A1
Application number: PCT/CN2014/090731
Authority: WO
Inventors: 吴毅凌; 刘铮; 于光炜; 罗超
Original assignee: 华为技术有限公司
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2016-05-19
Also published as: CN106165470A; CN106165470B

Abstract

Embodiments of the present invention provide an information transmission method, device and system. The method comprises: a network device determines a synchronization signal and a broadcast information block to be sent; and the network device sends N frames to a user equipment, wherein the N frames carry N frame number indication signals respectively, the N frames each carry the synchronization signal and the broadcast information block to be sent, and N is an integer greater than or equal to 2; the frame number indication signal is used for indicating the frame number of the frame where the frame number indication signal is located, and the modulation symbol occupied by the frame number indication signal in any one of the N frames is different from the modulation symbol occupied by the synchronization signal and the broadcast information block to be sent in the frame. Because the frame number indication signal, the synchronization signal and the broadcast information block in each frame are separately transmitted, the combination gains of the synchronization signal and the broadcast information block are achieved, and the network coverage is enhanced.

Description

Information transmission method, device and system

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to an information transmission method, device, and system.

Background technique

The current wireless communication system is mainly designed for human-to-human (H2H) communication, and it has high requirements for mobility and delay. With the development of intelligent terminals and wireless network communication, many machine type communication (English: Machine Type Communications, MTC), which does not require people to participate, has been developed, resulting in device-to-device (English: Machine-To-Machine, abbreviation :M2M) wireless communication system, which is an indispensable part of daily life, such network communication that does not require people to participate in, for example, telemetry, telematics, security and monitoring, public transportation, industrial applications, remote meter reading, home Application, sales and payment, etc.

Among them, the number of MTC devices in the M2M wireless communication system is much larger than the number of devices communicated by humans, but the data packets transmitted by the MTC device are small and are not sensitive to delay, so that less bandwidth is required, so A narrowband M2M solution can be used. The narrowband M2M uses single carrier modulation, and the carrier used by the narrowband M2M can be in the transmission band of the Global System for Mobile Communications (GSM) carrier, Long Term Evolution (LTE). Within or within the guard band of LTE. As shown in FIG. 1 , the bandwidth used by the narrowband M2M is 200 kHz, and the bandwidth of the 200 kHz can be divided into 12 downlink physical channels, wherein 11 physical downlink shared channels (English: Physical Downlink Shared Channel, PDSCH for short) One physical broadcast synchronization channel (English: Physical Broadcast Synchronization Channel, PBSCH for short).

However, many MTC applications are used in environments with poor signal coverage. For example, meter water meters are usually installed in indoors or even basements where wireless network signals are not good. The narrowband M2M solution can achieve network coverage enhancement through repeated transmission, thus enabling coverage in the environment. Poor MTC devices can communicate smoothly. The base station in the narrowband M2M system needs to send the frame number information (ie, the frame number indication) to the MTC device, so that the MTC device performs corresponding operations such as frequency hopping and scheduling according to the frame number. The existing frame number indication in GSM is carried in the synchronization information, and the frame number indication in LTE is carried in the broadcast information. However, the frame number indication in the existing GSM and LTE changes with each frame. If the narrowband M2M adopts the above-mentioned frame number indication scheme, the merge gain cannot be obtained and the coverage enhancement effect cannot be achieved.

Summary of the invention

Embodiments of the present invention provide an information transmission method, device, and system for enhancing coverage of a network.

In a first aspect, an embodiment of the present invention provides a network device, including: a processing unit, configured to determine a synchronization signal and a broadcast information block to be sent;

a sending unit, configured to send, to the user equipment, N frames, where the N frames respectively carry N frame number indication signals, and the N frames each carry the synchronization signal to be sent and a broadcast information block, where the N An integer greater than or equal to 2;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, and a frame number indication signal in any one of the N frames is the same as in the any one of the frames. The synchronization signal and the broadcast information block to be transmitted occupy different modulation symbols.

In a first possible implementation manner of the first aspect, each of the N frame number indication signals is different.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the sending unit is specifically configured to perform channel coding and rate matching on a frame number of the first frame to the K Modulating a symbol, obtaining a frame number indication signal in the first frame, wherein the K is an integer greater than or equal to 1, the first frame is any one of the N frames; The first frame sends a frame number indication signal for indicating a frame number of the first frame to the user equipment.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the sending unit is specifically configured to map a frame number of the first frame to a length K Sequence, the m sequence corresponding to the first frame is obtained, where the K is an integer greater than or equal to 1, and the first frame is any one of the N frames; The m sequence corresponding to the first frame is subjected to π/4 phase shift binary phase shift keying (English: Binary Phase Shift Keying, BPSK) modulation, and is mapped to K modulation symbols to obtain frames in the first frame. a signal indicating that the network device sends the user equipment to the user equipment by using the first frame to indicate the The frame number of the frame number of the first frame indicates the signal.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the sending unit is configured to map a frame number of the first frame to a length K The sequence of obtaining the m sequence corresponding to the first frame includes: the sending unit is specifically configured to obtain, according to the frame number of the first frame and the first m sequence polynomial, the m sequence corresponding to the first frame Wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the second to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the sending unit passes the frame number of the first frame A log ₂ N-bit information bit is sent to the user equipment.

In a sixth possible implementation manner of the first aspect, the N frames are divided into N/M repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the sending unit is configured to perform channel coding and rate matching on a group number of the first retransmission group Up to K modulation symbols, obtaining a frame number indication signal for indicating a group number of the first repeated transmission group, wherein the K is an integer greater than or equal to 1, the first repeated transmission group being the Any one of the N/M repeated transmission groups; and transmitting, by the first repeated transmission group, M frame number indication signals indicating the group number of the first repeated transmission group to the user equipment .

With reference to the sixth possible implementation manner of the first aspect, in the eighth possible implementation manner of the first aspect, the sending unit is specifically configured to map the group number of the first repeated transmission group to a length of K Obtaining, in the m sequence, an m sequence corresponding to the first repeated transmission group, where the K is an integer greater than or equal to 1, and the first repeated transmission group is any one of the N/M repeated transmission groups And repeating the transmission group; and performing π/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and mapping to K modulation symbols, obtaining a location for indicating the group number of the first repeated transmission group a frame number indication signal; and transmitting, by the first repeated transmission group, M frame number indication signals for indicating a group number of the first repeated transmission group to the user equipment.

In conjunction with the eighth possible implementation of the first aspect, in a ninth possible implementation manner of the first aspect, the sending unit is configured to map the group number of the first repeated transmission group to a length of K Obtaining the m sequence corresponding to the first repeated transmission group, the sending unit is specifically configured to generate the first according to the group number of the first repeated transmission group and the first m sequence polynomial The m sequence corresponding to the transmission group is repeated, wherein the first m sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the seventh to the ninth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, the sending unit, the group of the first retransmission group The number is sent to the user equipment through a log ₂ (N/M) bit information bit.

In a second aspect, an embodiment of the present invention provides a user equipment, including:

a receiving unit, configured to receive N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same broadcast information block, where the N An integer greater than or equal to 2;

a processing unit, configured to obtain, according to a frame number indication signal occupying the first modulation symbol in the N frames, a frame number of the N frames; and N locations occupying the second modulation symbol in the N frames And synthesizing the synchronization signal and the N pieces of the broadcast information block occupying the third modulation symbol in the N frames;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located; the first modulation symbol is different from the second modulation symbol and the third modulation symbol.

In a first possible implementation manner of the second aspect, each of the N frame number indication signals is different.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the processing unit is configured to: according to the frame number indication signal occupying the first modulation symbol in the N frames And obtaining the frame number of the N frames, where the processing unit is configured to perform channel decoding on a frame number indication signal occupying the first modulation symbol in the first frame, to obtain a frame of the first frame. No., wherein the first frame is any one of the N frames.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the processing unit is configured to: according to the frame number indication signal occupying the first modulation symbol in the N frames Obtaining a frame number of the N frames, where the processing unit is specifically configured to perform a π/4 phase shift binary phase shift keying BPSK on a frame number indication signal occupying the first modulation symbol in the first frame. Demodulating to obtain a first sequence of length K, wherein the first modulation symbol comprises K a modulation symbol, wherein K is an integer greater than or equal to 1, the first frame is any one of the N frames; and N different m sequences of length K are respectively associated with the first sequence Performing correlation processing to obtain N correlation peaks; and using the m sequence used to acquire the maximum of the N correlation peaks as the m sequence corresponding to the first frame; and according to the N m sequences The mapping relationship between the frame numbers of the N frames and the m sequence corresponding to the first frame determines the frame number of the first frame.

In conjunction with the third possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the processing unit is further configured to separately perform N different m sequences of length K The first sequence is subjected to correlation processing, and before the N correlation peaks are obtained, the frame numbers of the N frames are mapped one by one to N m sequences of length K, and the N lengths of K are different. And a mapping relationship between the N m sequences and frame numbers of the N frames.

With reference to the fourth possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the processing unit is configured to map the frame numbers of the N frames to N in a one-to-one correspondence And obtaining, by the m sequence of length K, different N sequences of length K, comprising: the processing unit, configured to obtain the N according to a frame number of the N frames and a first m sequence polynomial An m-sequence of length K, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

In combination with any possible implementation of the second embodiment of the second aspect to the fifth, sixth possible implementation manner of the second aspect, the receiving means of the log ₂ N information bits received by The frame number of the first frame.

In a seventh possible implementation manner of the second aspect, the N frames are divided into M/N repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.

With reference to the seventh possible implementation of the second aspect, in an eighth possible implementation manner of the second aspect, the processing unit is configured to: according to the frame number indication signal that occupies the first modulation symbol in the N frames And obtaining the frame number of the N frames, where the processing unit is configured to combine the frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain a merged frame number indication signal; and successfully decoding the merged frame number indication signal, obtaining a group number of the first repeated transmission group composed of the consecutive M frames, wherein the first repeated transmission The group is any one of the N/M repeated transmission groups; and determining the first repetition according to a group number of the first repeated transmission group and a chronological order of each frame in the first repeated transmission group The frame number of each frame in the transmission group.

In conjunction with the eighth possible implementation of the second aspect, in a ninth possible implementation manner of the second aspect, the processing unit is configured to successfully decode the merged frame number indication signal, to obtain the continuous a group number of the first repeated transmission group consisting of M frames, comprising: the processing unit configured to perform channel decoding on the combined frame number indication signal to obtain a channel decoding result; and when the channel decoding result When the verification is correct, it is determined that the consecutive M frames constitute the first repeated transmission group and the channel decoding result is used as the group number of the first repeated transmission group.

In conjunction with the eighth possible implementation of the second aspect, in a tenth possible implementation manner of the second aspect, the processing unit is configured to successfully decode the merged frame number indication signal, to obtain the continuous a group number of the first repeated transmission group consisting of M frames, comprising: the processing unit configured to perform π/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence of length K The frame number indication signal occupies K modulation symbols, the K is an integer greater than or equal to 1; and N/M different m sequences of length K are respectively correlated with the first sequence to obtain N/M correlation peaks; and when the maximum of the N/M correlation peaks is greater than a preset value, determining that the consecutive M frames constitute the first repeated transmission group and will be used to acquire the The m sequence used by the maximum of the N/M correlation peaks is used as the m sequence corresponding to the first repeated transmission group; and the group number of the N/M repeated transmission groups according to the N/M m sequences Mapping relationship, and the m sequence corresponding to the first repeated transmission group, determining the A group of repeated transmission group number.

With reference to the tenth possible implementation manner of the second aspect, in the eleventh possible implementation manner of the second aspect, the processing unit is further configured to separately perform N/M different m sequences of length K Correlating the first sequence with the first sequence to obtain N/M correlation peaks, mapping the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences The N/M different m sequences of length K; and establishing a mapping relationship between the N/M m sequences and the group number of the N/M repeated transmission groups.

In conjunction with the eleventh possible implementation manner of the second aspect, in a twelfth possible implementation manner of the second aspect, the processing unit is configured to use the group number of the N/M repeated transmission groups Correspondingly mapped to N/M m-sequences of length K, obtaining the N/M different m-sequences of length K, including: the processing unit is configured to perform the transmission group according to the N/M The group number and the first m-sequence polynomial obtain the N/M m-sequences of length K, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the eighth to twelfth possible implementation manners of the second aspect, in the thirteenth possible implementation manner of the second aspect, the receiving unit passes log ₂ (N/M) The bit information bits receive the group number of the first repeated transmission group.

In a third aspect, an embodiment of the present invention provides an information transmission method, including:

The network device determines a synchronization signal and a broadcast information block to be transmitted;

The network device sends N frames to the user equipment, where the N frames respectively carry N frame number indication signals, and the N frames carry the synchronization signal to be sent and the broadcast information block, where the N is An integer greater than or equal to 2;

In a first possible implementation manner of the third aspect, each of the N frame number indication signals is different.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the sending, by the network device, the N frames to the user equipment includes: the network equipment, the frame of the first frame And performing channel coding and rate matching to K modulation symbols to obtain a frame number indication signal in the first frame, where the K is an integer greater than or equal to 1, and the first frame is the N frames Any one of the frames; the network device transmitting, by the first frame, a frame number indication signal indicating a frame number of the first frame to the user equipment.

With the first possible implementation of the third aspect, in a third possible implementation manner of the third aspect, the sending, by the network device, the N frames to the user equipment includes:

The network device maps a frame number of the first frame to an m sequence of length K, and obtains an m sequence corresponding to the first frame, where the K is an integer greater than or equal to 1, the first The frame is any one of the N frames; the network device performs π/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps to K modulation symbols to obtain a frame number indication signal in the first frame; the network device sends, by using the first frame, a frame number indication signal for indicating a frame number of the first frame to the user equipment.

In conjunction with the third possible implementation of the third aspect, the fourth possible implementation in the third aspect In the present mode, the network device maps the frame number of the first frame to an m-sequence of length K, and obtains the m-sequence corresponding to the first frame, including:

And obtaining, by the network device, the m sequence corresponding to the first frame according to the frame number of the first frame and the first m sequence polynomial, where the first m sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the second to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the frame number of the first frame passes the log ₂ N bit information The bits are sent to the user equipment.

In a sixth possible implementation manner of the third aspect, the N frames are divided into N/M repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.

With the sixth possible implementation of the third aspect, in a seventh possible implementation manner of the third aspect, the sending, by the network device, the N frames to the user equipment, The group number is subjected to channel coding and rate matching to K modulation symbols, and a frame number indication signal for indicating a group number of the first repeated transmission group is obtained, wherein the K is an integer greater than or equal to 1, The first repeated transmission group is any one of the N/M repeated transmission groups; the network device sends M to the user equipment by the first repeated transmission group to indicate the A frame number indicating signal of the group number of the repeated transmission group.

With the sixth possible implementation of the third aspect, in an eighth possible implementation manner of the third aspect, the sending, by the network device, the N frames to the user equipment includes:

The network device maps the group number of the first repeated transmission group to an m sequence of length K, and obtains an m sequence corresponding to the first repeated transmission group, where the K is an integer greater than or equal to 1. The first repeated transmission group is any one of the N/M repeated transmission groups;

And the network device performs π/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps to K modulation symbols, and obtains the identifier for indicating the group number of the first repeated transmission group. Frame number indication signal;

And the network device sends, by using the first repeated transmission group, M frame number indication signals for indicating a group number of the first repeated transmission group to the user equipment.

In conjunction with the eighth possible implementation of the third aspect, in a ninth possible implementation manner of the third aspect, the network device maps the group number of the first retransmission group to a length K Sequence, the obtaining the m sequence corresponding to the first repeated transmission group, comprising: the network device generating, according to the group number of the first repeated transmission group and the first m sequence polynomial, corresponding to the first repeated transmission group The m sequence, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the seventh to the ninth possible implementation manners of the third aspect, in the tenth possible implementation manner of the third aspect, the group number of the first retransmission group passes log ₂ ( The N/M) bit information bits are sent to the user equipment.

In a fourth aspect, an embodiment of the present invention further provides an information transmission method, including:

The user equipment receives N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same broadcast information block, where the N is greater than or An integer equal to 2;

Obtaining, by the user equipment, a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames;

The user equipment performs a combining process on the N pieces of the synchronization signal occupying the second modulation symbol in the N frames and the N pieces of the broadcast information blocks occupying the third modulation symbol in the N frames;

In a first possible implementation manner of the fourth aspect, each of the N frame number indication signals is different.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the user equipment obtains, according to a frame number indication signal that occupies the first modulation symbol in the N frames, The frame number of the N frames, including:

The user equipment performs channel decoding on the frame number indication signal occupying the first modulation symbol in the first frame, and obtains a frame number of the first frame, where the first frame is in the N frames. Any frame.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the user equipment obtains, according to a frame number indication signal that occupies the first modulation symbol in the N frames, The frame number of the N frames, including:

The user equipment performs π/4 phase shift binary phase shift keying BPSK demodulation on the frame number indication signal occupying the first modulation symbol in the first frame, to obtain a first sequence of length K, where The first modulation symbol includes K modulation symbols, the K is an integer greater than or equal to 1, and the first frame is any one of the N frames;

The user equipment processes N different m sequences of length K and the first sequence to obtain N correlation peaks;

The user equipment uses an m sequence used to acquire a maximum of the N correlation peaks as an m sequence corresponding to the first frame;

The user equipment determines a frame number of the first frame according to a mapping relationship between the N m sequences and a frame number of the N frames, and an m sequence corresponding to the first frame.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the user equipment performs N different m sequences of length K and the first sequence respectively Correlation processing, before obtaining N related peaks, also includes:

The user equipment maps the frame numbers of the N frames to the n m sequences of length K in a one-to-one correspondence, and obtains the N different m sequences of length K;

The user equipment establishes a mapping relationship between the N m sequences and the frame numbers of the N frames.

With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the user equipment maps frame numbers of the N frames to N times in a one-to-one correspondence The m sequence of K obtains the different m sequences of length K, including:

The user equipment according to a frame number of the N frames and a first m-sequence polynomial, to obtain the N m-sequences of length K, wherein the first m-sequence to polynomial x ⁷ + x ⁶ +1.

With reference to any one of the second to fifth possible implementation manners of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the user equipment, by using a log ₂ N bit information bit, The frame number of the first frame.

In a seventh possible implementation manner of the fourth aspect, the N frames are divided into M/N repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the user equipment obtains, according to a frame number indication signal that occupies the first modulation symbol in the N frames, The frame number of the N frames, including:

The user equipment combines frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain a combined frame number indication signal;

The user equipment successfully decodes the combined frame number indication signal, and obtains a group number of the first repeated transmission group composed of the consecutive M frames, where the first repeated transmission group is the N/M Any of the repeated transmission groups;

And determining, by the user equipment, a frame number of each frame in the first repeated transmission group according to a group sequence of the first repeated transmission group and a time sequence of each frame in the first repeated transmission group.

In conjunction with the eighth possible implementation of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the user equipment successfully decodes the merged frame number indication signal, and obtains the consecutive M The group number of the first repeated transmission group consisting of frames, including:

The user equipment performs channel decoding on the combined frame number indication signal to obtain a channel decoding result;

When the channel decoding result is verified correctly, the user equipment determines that the consecutive M frames constitute the first repeated transmission group and uses the channel decoding result as a group number of the first repeated transmission group.

With the eighth possible implementation of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the user equipment successfully decodes the merged frame number indication signal, and obtains the consecutive M The group number of the first repeated transmission group consisting of frames, including:

The user equipment performs π/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence of length K, where the frame number indication signal occupies K modulation symbols, and the K is greater than Or an integer equal to 1;

The user equipment separately processes N/M different m sequences of length K and the first sequence to obtain N/M correlation peaks;

When the maximum value of the N/M correlation peaks is greater than a preset value, the user equipment determines that the consecutive M frames constitute the first repeated transmission group, and is used to acquire the N/M The m sequence used for the maximum value of the correlation peaks is used as the m sequence corresponding to the first repeated transmission group;

Determining, by the user equipment, the first repeated transmission according to a mapping relationship between the N/M m sequences and a group number of the N/M repeated transmission groups, and an m sequence corresponding to the first repeated transmission group The group number of the group.

In conjunction with the tenth possible implementation of the fourth aspect, the eleventh possible In an implementation manner, the user equipment separately processes N/M different m sequences of length K and the first sequence to obtain N/M correlation peaks, and further includes:

The user equipment maps the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences, to obtain the N/M different m sequences of length K;

The user equipment establishes a mapping relationship between the N/M m sequences and the group number of the N/M repeated transmission groups.

With reference to the eleventh possible implementation manner of the fourth aspect, in a twelfth possible implementation manner of the fourth aspect, the user equipment, the group number of the N/M retransmission groups is in a one-to-one correspondence Mapping to N/M m-sequences of length K, obtaining the N/M different m-sequences of length K, including: the user equipment according to the group number and the number of the N/M repeated transmission groups An m-sequence polynomial obtains the N/M m-sequences of length K, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

With reference to any one of the eighth to twelfth possible implementation manners of the fourth aspect, in the thirteenth possible implementation manner of the fourth aspect, the user equipment passes log ₂ (N/M) The bit information bits receive the group number of the first repeated transmission group.

A fifth aspect of the present invention provides an information transmission system, including: a network device provided by various possible implementation manners of the third aspect or the third aspect of the embodiments of the present invention, and the fourth aspect or the User equipment provided by various possible implementations of the four aspects.

The information transmission method, device, and system provided by the embodiment of the present invention determine a synchronization signal and a broadcast information block to be sent by using the network device, and send N frames to the user equipment, where the N frames respectively carry N frame number indication signals. And the N frames each carry the synchronization signal to be sent and the broadcast information block, where N is an integer greater than or equal to 2; wherein the frame number indication signal is used to indicate that the frame number indication signal is located a frame number of the frame, the frame number indication signal in any one of the N frames occupies a different modulation symbol from the synchronization signal and the broadcast information block to be transmitted in the any frame; The frame number indication signal in the frame is separately transmitted from the synchronization signal and the broadcast information block, and the combined gain of the synchronization signal and the broadcast information block can be achieved, thereby enhancing the coverage of the network.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below, obviously, The drawings in the above description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic diagram of channel division of a narrowband M2M in the prior art;

2 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention;

3 is a schematic structural diagram of Embodiment 2 of a network device according to the present invention;

4 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention;

6 is a flowchart of Embodiment 1 of an information transmission method according to the present invention;

FIG. 7 is a schematic diagram of a frame number indication signal transmission according to an embodiment of the present invention;

FIG. 8 is a flowchart of Embodiment 2 of an information transmission method according to the present invention;

FIG. 9 is a schematic diagram of determining a repeated transmission group according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The user equipment of the present invention may include an MTC device.

2 is a schematic structural diagram of Embodiment 1 of a network device according to the present invention. As shown in FIG. 2, the network device in this embodiment may include: a processing unit 11 and a sending unit 12; wherein, the processing unit 11 is configured to determine a synchronization to be sent. a signal and a broadcast information block; the sending unit 12 is configured to send, to the user equipment, N frames, where the N frames respectively carry N frame number indication signals, and the N frames carry the synchronization signal to be sent and a broadcast information block, where N is an integer greater than or equal to 2; wherein the frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, in any one of the N frames The frame number indication signal occupies a different modulation symbol from the synchronization signal and the broadcast information block to be transmitted in the any frame.

In a first feasible implementation manner, each frame number indication signal in the N frame number indication signals is different.

Optionally, the sending unit 12 is specifically configured to perform channel coding and rate on the frame number of the first frame. Assigning to K modulation symbols, obtaining a frame number indication signal in the first frame, where the K is an integer greater than or equal to 1, and the first frame is any one of the N frames; And transmitting, by the first frame, a frame number indication signal for indicating a frame number of the first frame to the user equipment.

Optionally, the sending unit 12 is specifically configured to map the frame number of the first frame to an m sequence of length K, to obtain an m sequence corresponding to the first frame, where the K is greater than or equal to 1. An integer, the first frame is any one of the N frames; the network device performs π/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps Obtaining a frame number indication signal in the first frame to the K modulation symbols; the network device transmitting, by using the first frame, a frame number indication for indicating a frame number of the first frame to the user equipment signal.

Optionally, the sending unit 12 is configured to map the frame number of the first frame to an m sequence of length K, and obtain the m sequence corresponding to the first frame, where the sending unit 12 is configured according to the first And obtaining a m sequence corresponding to the first frame, where the first m sequence polynomial is x ⁷ + x ⁶ +1.

Optionally, the sending unit 12 sends the frame number of the first frame to the user equipment by using a log ₂ N-bit information bit.

In a second feasible implementation manner, the N frames are divided into N/M repeated transmission groups, and the consecutive M frames form a repeated transmission group, and the frame number in each frame in the repeated transmission group The indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is an integer greater than or equal to 2. .

Optionally, the sending unit 12 is configured to: perform channel coding and rate matching on the group number of the first repeated transmission group to K modulation symbols, and obtain a frame number that is used to indicate the group number of the first repeated transmission group. An indication signal, wherein the K is an integer greater than or equal to 1, the first repeated transmission group is any one of the N/M repeated transmission groups; and the first repeated transmission group Sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment.

Optionally, the sending unit 12 is configured to map the group number of the first repeated transmission group to an m sequence of length K, to obtain an m sequence corresponding to the first repeated transmission group, where the K is An integer greater than or equal to 1, the first repeated transmission group is any one of the N/M repeated transmission groups; and the π/4 phase shift BPSK is performed on the m sequence corresponding to the first repeated transmission group Modulating, and mapping to K modulation symbols, obtaining the frame number indication signal for indicating a group number of the first repeated transmission group; and transmitting M times to the user equipment by the first repeated transmission group And a frame number indicating signal indicating a group number of the first repeated transmission group.

Optionally, the sending unit 12 is configured to map the group number of the first retransmission group to an m-sequence of length K, to obtain the m-sequence corresponding to the first retransmission group, including: Generating, according to the group number of the first repeated transmission group and the first m sequence polynomial, an m sequence corresponding to the first repeated transmission group, where the first m sequence polynomial is x ⁷ + x ⁶ +1 .

Alternatively, the transmission unit 12 set the number of repeated transmissions a first group of bits transmitted to the user equipment through log ₂ (N / M) bits of information.

The network device in this embodiment may be used to perform the technical solution executed by the network device in the following method embodiments of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.

In hardware implementation, the above transmitting unit 12 can be a transmitter or a transceiver. The above processing unit 11 may be embedded in or independent of the processor of the network device in hardware, or may be stored in the memory of the network device in software, so that the processor invokes the operations corresponding to the above units. The processor can be a central processing unit (English: Central Processing Unit, CPU for short), a microprocessor, a single chip microcomputer, and the like. Referring to FIG. 3, FIG. 3 is a schematic structural diagram of Embodiment 2 of a network device according to the present invention. As shown in FIG. 3, the network device in this embodiment includes a transceiver 21 and a processor 22. Of course, the network device may also include a common component such as an antenna, a baseband processing component, a medium-frequency radio processing component, and an input/output device, and the embodiment of the present invention is not limited thereto. The transceiver 21 and the processor 22 can be used to perform the operations performed by the network device in the implementation of the various methods described below. Optionally, the network device may further include: a memory 23, wherein the memory 23 stores a set of program codes, and the processor 22 is configured to call the program code stored in the memory 23 for performing the following method embodiments of the present invention. The operation performed by the network device.

It should be noted that the network device shown in FIG. 3 can be used to perform the technical solution executed by the network device in the following method embodiments of the present invention, and the implementation principle and technical effects are similar, and details are not described herein again.

4 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention. As shown in FIG. 4, the user equipment in this embodiment may include: a receiving unit 31 and a processing unit 32, where the receiving unit 31 is configured to receive a network device. N frames, the N frames respectively carrying N frame number indication signals, and The N frames all carry the same synchronization signal and the same broadcast information block, and the N is an integer greater than or equal to 2; the processing unit 32 is configured to: according to the frame number of the N frames occupying the first modulation symbol And an indication signal, obtaining a frame number of the N frames; and N to the N synchronization signals occupying the second modulation symbol and the N of the N frames occupying the third modulation symbol in the N frames The broadcast information block performs a merging process; wherein the frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located; the first modulation symbol and the second modulation symbol, the third modulation symbol All are different.

Optionally, the processing unit 32 is configured to obtain the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, and the processing unit 32 is specifically configured to use the first frame. The frame number indication signal occupying the first modulation symbol is used for channel decoding to obtain a frame number of the first frame, wherein the first frame is any one of the N frames.

Optionally, the processing unit 32 is configured to obtain the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, where the processing unit 32 is specifically configured to: use the first frame The frame number indication signal occupying the first modulation symbol is subjected to π/4 phase shift binary phase shift keying BPSK demodulation to obtain a first sequence of length K, wherein the first modulation symbol includes K modulation symbols And K is an integer greater than or equal to 1, the first frame is any one of the N frames; and N different m sequences of length K are respectively associated with the first sequence Processing, obtaining N correlation peaks; and using an m sequence for acquiring a maximum of the N correlation peaks as an m sequence corresponding to the first frame; and according to the N m sequences and the The mapping relationship of the frame numbers of the N frames and the m sequence corresponding to the first frame determine the frame number of the first frame.

Optionally, the processing unit 32 is further configured to: after the N different lengths of K are respectively related to the first sequence, obtain the frame numbers of the N frames before obtaining N correlation peaks. One-to-one mapping to N m-length sequences of K, obtaining the N different m-sequences of length K; and establishing a mapping relationship between the N m-sequences and the frame numbers of the N frames.

Optionally, the processing unit 32 is configured to map the frame numbers of the N frames one by one to the N m sequences of length K, to obtain the N different m sequences of length K, including: processing The unit 32 is configured to obtain, according to the frame number of the N frames and the first m sequence polynomial, the N m sequences of length K, wherein the first m sequence polynomial is x ⁷ + x ⁶ +1.

Optionally, the receiving unit 31 receives the frame number of the first frame by using a log ₂ N bit information bit.

In a second feasible implementation manner, the N frames are divided into M/N repeated transmission groups, and the consecutive M frames form a repeated transmission group, and the frame number in each frame in the repeated transmission group The indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is an integer greater than or equal to 2. .

Optionally, the processing unit 32 is configured to obtain the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, where the processing unit 32 is specifically configured to use the N a frame number indication signal occupying the first modulation symbol in consecutive M frames in the frame is combined to obtain a combined frame number indication signal; and successfully decoding the combined frame number indication signal to obtain the continuous a group number of the first repeated transmission group composed of M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; and a group number according to the first repeated transmission group And determining, in a time sequence of each frame in the first repeated transmission group, a frame number of each frame in the first repeated transmission group.

Optionally, the processing unit 32 is configured to successfully decode the merged frame number indication signal, and obtain a group number of the first repeated transmission group consisting of the consecutive M frames, where the processing unit 32 is configured to use the The merged frame number indication signal performs channel decoding to obtain a channel decoding result; and when the channel decoding result is verified correctly, determining that the consecutive M frames constitute the first repeated transmission group and decoding the channel The result is the group number of the first repeated transmission group.

Optionally, the processing unit 32 is configured to successfully decode the merged frame number indication signal, and obtain a group number of the first repeated transmission group consisting of the consecutive M frames, where the processing unit 32 is configured to: The combined frame number indication signal is subjected to π/4 phase shift BPSK demodulation to obtain a first sequence of length K, the frame number indication signal occupies K modulation symbols, and the K is an integer greater than or equal to 1; And respectively performing N/M different m sequences of length K with the first sequence to obtain N/M correlation peaks; and when the maximum value of the N/M correlation peaks is greater than a preset And determining, in the case of the value, the consecutive M frames to form the first repeated transmission group, and using the m sequence used for acquiring the maximum value among the N/M correlation peaks as the first repeated transmission group The m sequence; determining the first repeated transmission according to a mapping relationship between the N/M m sequences and a group number of the N/M repeated transmission groups, and an m sequence corresponding to the first repeated transmission group Group Group No.

Optionally, the processing unit 32 is further configured to: before the N/M different m sequences of length K are separately processed with the first sequence to obtain N/M correlation peaks, the N/M The group numbers of the repeated transmission groups are mapped one by one to N/M lengths of K sequences, to obtain the N/M different m sequences of length K; and the N/M m sequences are established A mapping relationship with the group number of the N/M repeated transmission groups.

Optionally, the processing unit 32 is configured to map the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences, to obtain the N/M lengths of K. The different m sequences, including: the processing unit 32, configured to obtain the N/M lengths of K sequences according to the group numbers of the N/M repeated transmission groups and the first m sequence polynomial, where The first m-sequence polynomial is x ⁷ + x ⁶ +1.

Optionally, the receiving unit 31 receives the group number of the first repeated transmission group by using a log ₂ (N/M) bit information bit.

The user equipment in this embodiment may be used to perform the technical solution executed by the user equipment in the following method embodiments of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.

In hardware implementation, the above receiving unit 31 can be a receiver or a transceiver. The above processing unit 32 may be embedded in or independent of the processor of the user equipment in hardware, or may be stored in the memory of the user equipment in software, so that the processor invokes the operations corresponding to the above units. The processor can be a CPU, a microprocessor, a microcontroller, or the like. Referring to FIG. 5, FIG. 5 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention. As shown in FIG. 5, the user equipment in this embodiment includes a transceiver 41 and a processor 42. Of course, the user equipment may also include a common component such as an antenna, a baseband processing component, a medium-frequency radio processing component, and an input/output device, and the embodiment of the present invention is not limited thereto. The transceiver 41 and the processor 42 can be used to perform the operations performed by the user equipment in the implementation of the various methods described below. Optionally, the user equipment may further include: a memory 43, wherein the memory 43 stores a set of program codes, and the processor 42 is configured to call the program code stored in the memory 43 for performing the following method embodiments of the present invention. The operation performed by the user device.

It should be noted that the user equipment shown in FIG. 5 can be used to implement the technical solution executed by the user equipment in the following method embodiments of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.

FIG. 6 is a flowchart of Embodiment 1 of an information transmission method according to the present invention, as shown in FIG. The methods can include:

S101. The network device determines a synchronization signal to be sent and a broadcast information block.

S102: The network device sends N frames to the user equipment, where the N frames respectively carry N frame number indication signals, and the N frames each carry the synchronization signal to be sent and a broadcast information block, where N is an integer greater than or equal to 2.

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, and a frame number indication signal in any one of the N frames, the The synchronization signal to be transmitted, the broadcast information block to be transmitted in any one of the frames occupy different modulation symbols. Specifically, the network device sends the synchronization signal, a broadcast information block (Broadcast Information Block, BIB), and a frame number indication signal (English: Frame Index Indication Signal) through each of the N frames. Abbreviation: FIIS), the synchronization signal may include a primary synchronization signal (English: Primary Synchronization Signal, PSS for short) and/or a secondary synchronization signal (English: Secondary Synchronization Signal, SSS for short).

Specifically, the network device may determine a synchronization signal and a broadcast information block that need to be sent to the user equipment, and then the network device sends the synchronization signal, the broadcast information block, and a frame number indication signal once in each of the N frames, and The frame number indication signal, the synchronization signal, and the broadcast information block in each frame occupy different modulation symbols. As shown in FIG. 7, N frames form a superframe, and the synchronization signal transmitted in each frame in the superframe. Similarly, and the transmitted broadcast information block is the same, the synchronization signal in FIG. 7 includes a primary synchronization signal and a secondary synchronization signal, and in each frame, the frame number indication signal occupies the first modulation symbol, the synchronization signal occupies the second modulation symbol, The broadcast information block occupies a third modulation symbol, where the first modulation symbol is different from the second modulation symbol and the third modulation symbol, and the second modulation symbol and the third modulation symbol may be the same or different; does not transmit a synchronization signal and the broadcast information block on the frame number of modulation symbols occupied by the instruction signal, the primary synchronization signal in each frame are occupied by K _PSS modulation symbols , K secondary synchronization signal in each frame are occupied _SSS modulation symbols, a frame number signal indicative of occupancy in each frame _FIIs K modulation symbols, the broadcast information of occupied blocks _BIB K modulation symbols in each frame in FIG. 7 In the illustrated example, the network device first transmits a primary synchronization signal, a secondary synchronization signal, and then transmits a frame number indication signal in each frame, and then transmits a broadcast information block. It should be noted that the order of transmitting the frame number indication signal and the synchronization signal and the broadcast information block in each frame in the embodiment of the present invention is not limited to that shown in FIG. 7.

Correspondingly, the user equipment receives the N frames sent by the network device, due to the frame in each frame The number indication signal is different from the modulation signal occupied by the synchronization signal and the broadcast information block. Therefore, the frame number indication signal is transmitted separately from the synchronization signal and the broadcast information block, and is not carried in the synchronization signal or the broadcast information block, and The protocol may specify a modulation symbol occupied by the synchronization signal in one frame, a modulation symbol occupied by the broadcast information block, and a modulation symbol occupied by the frame number indication signal, so the user equipment can determine the modulation occupied by the synchronization signal in each of the N frames. a symbol (such as a second modulation symbol), a modulation symbol (such as a third modulation symbol) occupied by a broadcast information block in each of the N frames, and a modulation symbol occupied by a frame number indication signal in each of the N frames (eg, a first modulation symbol), so that the synchronization signal received by the user equipment on the first modulation symbol of each frame is the same, and the broadcast information block received on the second modulation symbol of each frame is also the same, so the user equipment can set N The N synchronization signals in the frame are combined to achieve the combined gain of the synchronization signal, and the user equipment can also N of the N frames. The broadcast information block is merged to achieve the combined gain of the broadcast information block, thereby enhancing the coverage of the network.

The information transmission method provided by the embodiment of the present invention determines a synchronization signal and a broadcast information block to be sent by using the network device, and sends N frames to the user equipment, where the N frames respectively carry N frame number indication signals, and the Each of the N frames carries the synchronization signal to be transmitted and the broadcast information block, where the frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, and any one of the N frames The frame number indication signal in the frame occupies a different modulation symbol from the synchronization signal and the broadcast information block to be transmitted in the any frame; since the frame number indication signal, the synchronization signal, and the broadcast information block in each frame are Separately transmitted, the combined gain of the synchronization signal and the broadcast information block can be achieved, thereby enhancing the coverage of the network.

FIG. 8 is a flowchart of Embodiment 2 of the information transmission method of the present invention. As shown in FIG. 8, the method in this embodiment may include:

S201: The user equipment receives N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same broadcast information block, where N is An integer greater than or equal to 2.

S202. The user equipment obtains a frame number of the N frames according to a frame number indication signal that occupies the first modulation symbol in the N frames.

S203. The user equipment performs a combining process on the N synchronization signals occupying the second modulation symbol in the N frames and the N broadcast information blocks occupying the third modulation symbol in the N frames.

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located; the first modulation symbol is different from the second modulation symbol and the third modulation symbol. Specifically, the user equipment receives the synchronization signal, the primary broadcast information block, and a frame number indication signal once in each of the N frames.

The protocol may specify a modulation symbol occupied by the synchronization signal in one frame, a modulation symbol occupied by the broadcast information block, and a modulation symbol occupied by the frame number indication signal. Therefore, the user equipment can determine a modulation symbol (such as a first modulation symbol) occupied by a frame number indication signal in each of the N frames, and a modulation symbol (such as a second modulation symbol) occupied by the synchronization signal in each of the N frames. And a modulation symbol (such as a third modulation symbol) occupied by the broadcast information block in each of the N frames, wherein the transmission mode of the frame number indication signal and the synchronization signal and the broadcast information block in each frame can be seen in FIG. 7 For detailed description, refer to the related description in the first embodiment of the method of the present invention, and details are not described herein again. It should be noted that the frame number indication signal, the synchronization signal, and the broadcast information in each frame in the embodiment of the present invention are required. The order in which the blocks are transmitted is not limited to that shown in FIG.

Since the frame number indication signal is different from the synchronization signal and the modulation symbol occupied by the broadcast information block in each frame, the frame number indication signal is separately received with respect to the synchronization signal and the broadcast information block, and is not carried in the synchronization signal or broadcast. The information is transmitted in the information block, so the user equipment can obtain the frame number of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames. Moreover, the synchronization signal received by the user equipment on the first modulation symbol of each frame is the same, and the broadcast information block received on the second modulation symbol of each frame is also the same, so the user equipment can synchronize N of the N frames. The signal is combined and processed to achieve the combined gain of the synchronization signal. The user equipment can also combine the N broadcast information blocks in the N frames to achieve the combined gain of the broadcast information block, thereby enhancing network coverage. It should be noted that the second modulation symbol and the third modulation symbol may be the same or the same. If the second modulation symbol is the same as the third modulation symbol, the user equipment may simultaneously perform N synchronization signals and N. The broadcast information block performs a combining process; if the second modulation symbol is different from the third modulation symbol, the user equipment may perform a combining process on the N pieces of the synchronization signal and the N pieces of the broadcast information block, respectively.

The information transmission method provided by the embodiment of the present invention receives, by the user equipment, N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same a broadcast information block; obtaining, according to a frame number indication signal occupying the first modulation symbol in the N frames, a frame number of the N frames; and occupying a second modulation symbol in the N frames Combining the N pieces of the synchronization signal and the N pieces of the broadcast information block occupying the third modulation symbol in the N frames, wherein the frame number indication signal is used to indicate the frame where the frame number indication signal is located a frame number; the first modulation symbol is different from the second modulation symbol and the third modulation symbol; and the frame number indication signal in each frame is separately transmitted from the synchronization signal and the broadcast information block, The combined gain of the sync signal and the broadcast information block enhances network coverage.

In the third embodiment of the information transmission method of the present invention, in the embodiment, the frame number indication signals in the N frame number indication signals in the N frame number indication signals are different according to the first or second embodiment of the method. The number indication information changes as the frame changes, that is, the frame number indication signal in this embodiment is not repeatedly transmitted together with the synchronization signal and the broadcast information block.

The network device needs to determine the frame number indication signal sent by the network device through each frame. In a feasible implementation manner, the network device may send the frame number indication signal through the first frame of the N frames. A frame number indication signal transmitted through each of the N frames is determined. In another possible implementation manner, the network device may determine the frame number indication signal before sending the frame number indication signal through each frame, for example, the network device determines the frame number indication signal sent on the first frame, where The frame number indication signal is transmitted on the first frame; then the frame number indication signal transmitted on the second frame is determined, the frame number indication signal is transmitted on the second frame, and so on.

The following description is performed in any one of N frames, which is hereinafter referred to as a first frame, and each of the N frames is processed in the same manner as the first frame, and is used to indicate the first frame. The frame number indication signal of the frame number occupies the first modulation symbol in the first frame, that is, the K modulation symbols pre-allocated, and K is an integer greater than or equal to 1.

In a first feasible implementation, on the network device side, the network device sends N frames to the user equipment, where the network device performs channel coding and rate matching on the frame number of the first frame to K modulation symbols, to obtain The frame number indication signal in the first frame is then sent, by the first frame, a frame number indication signal for indicating a frame number of the first frame to the user equipment. On the user equipment side, the user equipment obtains the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, including: the user equipment occupies the first frame in the first frame The frame number indication signal of a modulation symbol performs channel decoding to obtain a frame number of the first frame. The frame number of the first frame in this embodiment is sent to the user equipment by using a log ₂ N-bit information bit, that is, the frame number of the first frame obtained by the user equipment is a log ₂ N-bit information bit, and the K The information bits carried by the modulation symbols are larger than the log ₂ N-bit information bits, so that the robustness of the frame number indication signal and the enhanced network coverage of the first frame transmission can be ensured by reducing the coding efficiency.

In a second possible implementation, on the network device side, the network device sends the N frames to the user equipment, where the network device maps the frame number of the first frame to an m sequence of length K, and obtains the The m sequence corresponding to the first frame, for example, the network device maps the frame number of the first frame to an m sequence according to a certain mapping relationship; then the network device performs π/4 on the obtained m sequence corresponding to the first frame. Phase shift (eg, clockwise π/4 phase shift or counterclockwise π/4 phase shift) binary phase shift keying (English: Binary Phase Shift Keying, BPSK) modulation, and mapping to K modulation symbols, obtaining the A frame number indication signal in the first frame, and then a frame number indication signal for indicating a frame number of the first frame is sent to the user equipment through the first frame. On the user equipment side, the user equipment obtains the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, and includes: the user equipment occupies the occupied frame in the first frame. The frame number indication signal of the first modulation symbol is subjected to π/4 phase shift BPSK demodulation to obtain a first sequence of length K; the user equipment respectively sets N different m sequences of length K and the first The sequence is subjected to correlation processing to obtain N correlation peaks; then the user equipment uses the m sequence used to obtain the maximum of the N correlation peaks as the m sequence corresponding to the first frame; the user equipment according to the N The mapping relationship between the m sequences and the frame numbers of the N frames, and the m sequence corresponding to the first frame, determines the frame number of the first frame. Taking N as 3 as an example, the user equipment processes the m sequence A and the first sequence to obtain the correlation peak A, and processes the m sequence B and the first sequence to obtain the correlation peak B, and the m sequence C and The first sequence performs correlation processing to obtain the correlation peak C, and the user equipment can determine that the maximum value of the correlation peak A, the correlation peak B, and the correlation peak C is, for example, the correlation peak B, so the user equipment can determine that the m sequence B is the first frame. Corresponding m sequence (ie, an m sequence for generating a frame number indication signal on the first frame); the user equipment further according to the mapping relationship between the m sequence A and the frame number A of the frame, the m sequence B and the frame number B of the frame The mapping relationship and the mapping relationship between the m sequence C and the frame number C of the frame, and the m sequence B, determine that the frame number of the first frame is the frame number B of the frame. It should be noted that the foregoing related processing may include auto-correlation processing or cross-correlation processing, etc., which is similar to the prior art, and is not described herein again; the m-sequence is similar to the prior art and will not be described in detail herein. The m-sequence indicating frame number mode provided in this embodiment can implement network coverage enhancement by using a higher code rate.

Optionally, the user equipment processes the N different lengths of the K sequence with the first sequence to obtain the N correlation peaks, and further includes: the user equipment: the N frames The frame numbers are mapped one by one to the N m sequences of length K, and the N different m sequences of length K are obtained. For example, the network device maps the frame numbers of the N frames one by one according to a certain mapping relationship. Up to N m sequences; and establishing a mapping relationship between the N m sequences and the frame numbers of the N frames. For example, the user equipment may map the frame number A of the frame to the m-sequence A, obtain the m-sequence A, establish a mapping relationship between the frame number A and the m-sequence A of the frame, and map the frame number B of the frame to the m-sequence B. Obtaining the m sequence B, establishing a mapping relationship between the frame number B of the frame and the m sequence B; mapping the frame number C of the frame to the m sequence C, obtaining the m sequence C, and establishing the frame number C and the m sequence C of the frame Mapping relations.

Optionally, on the network device side, the network device maps the frame number of the first frame to an m sequence of length K, and obtains the m sequence corresponding to the first frame, including: the network device according to the first A frame number of the frame and a first m-sequence polynomial obtain an m-sequence corresponding to the first frame, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1. Specifically, the initial values of the eight shift registers are 1, 0, 0, 0, 0, 0, 0, 0; the '1' in the initial value corresponds to the shift register of the highest bit (ie, the 8th shift) The register, also known as the 7th shift register, generates an m-sequence based on x ⁷ + x ⁶ +1, where x ⁷ represents the value of the feedback coefficient of the 8th shift register is 1, and x ⁶ represents the 7th The value of the feedback coefficient of the shift register (ie, the shift register No. 6) is 1, and 1 indicates that the value of the feedback coefficient of the first shift register (ie, the shift register No. 0) is 1, and other shift register feedback The value of the coefficient is 0; and the generated m sequence is inverted first and last to obtain the original m sequence. The original m sequence corresponds to the indication sequence of the frame number of the first frame (for example, the frame number 0 of the frame); the frame sequence corresponding to the frame number of the second frame (for example, the frame number "1" of the frame) is sequentially sequenced by the original m sequence. The left shift of the "2" bit is obtained; the frame number corresponding to the frame number of the Nth frame (for example, the frame number "N-1" of the frame) is sequentially shifted to the left by the original m sequence by the "2 (N-1)" bit. get. In order to make full use of the signal dynamic range of the I/Q two-way, the m-sequence indicated by the frame number is subjected to π/4 phase-shifted BPSK modulation, that is, the '0' in the m-sequence corresponds to e ^jπ/4 , and the '1' in the m-sequence corresponds to - e ^jπ/4 ; Finally, the modulated m sequence is mapped onto the pre-assigned K modulation symbol resources for carrying the frame number indication signal. On the user equipment side, the user equipment maps the frame numbers of the N frames to the m sequences of length K, and obtains the N different m sequences of length K, including: the user equipment according to the The frame numbers of the N frames and the first m-sequence polynomial obtain the N-sequences of length K, wherein the first m-sequence polynomial is x ⁷ + x ⁶ +1.

Optionally, the frame number of the first frame in the embodiment is sent to the user equipment by using a log ₂ N-bit information bit, that is, the frame number of the first frame obtained by the user equipment is a log ₂ N-bit information bit. .

In the embodiment 4 of the information transmission method of the present invention, the N frames in the embodiment are divided into N/M repeated transmission groups, and the M frames are consecutively based on the first or second embodiment of the method. Forming a repeating transmission group, the frame number indication signal in each frame in the repeated transmission group is the same, and the frame number indication signal does not change with the frame change in the same repeated transmission group, that is, the frame number indication in this embodiment The signal is repeatedly transmitted together with the synchronization signal and the broadcast information block in the same repeated transmission group. The frame number indication signal is generated according to the group number of the repeated transmission group in which the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is an integer greater than or equal to 2. On the user equipment side, the user equipment obtains the frame number of the N frames according to the frame number indication signal that occupies the first modulation symbol in the N frames, including: the user equipment continues the N frames The frame number indication signals occupying the first modulation symbol in the M frames are combined to obtain a combined frame number indication signal; the user equipment successfully decodes the combined frame number indication signal, and obtains the continuous M frames. a group number of the first repeated transmission block, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; the user equipment is based on the group number of the first repeated transmission group and the first repetition The chronological order of each frame in the transmission group determines the frame number of each frame in the first repeated transmission group.

For example, the description is as follows: N is 12, M is 4, and the first to fourth frames (ie, frames 0, 1, 2, and 3) are used as the first repeated transmission group (ie, repeated transmission group 0), and the fifth to eighth frames. Frames (ie frames 4, 5, 6, 7) as the second repeat transmission group (ie repeat transmission group 1), the 9th-12 frames (ie frames 8, 9, 10, 11) as the third repeated transmission Group (ie, repeat transmission group 2), the network device repeatedly transmits 12 synchronization signals and broadcast information blocks through the 1st to 12th frames, and the network device separately transmits the first and second transmission groups through the 1-4th frames. a frame number indication signal, which respectively transmits a frame number indication signal for indicating a second repeated transmission group through the 5th-8th frame, and respectively transmits a frame for indicating the third repeated transmission group through the 9th to 12th frames No. indication signal. During the process of receiving the 12 frames, the user equipment determines which frames belong to the same retransmission group. For example, the user equipment can perform blind detection through a sliding window to determine, as shown in FIG. 9, the size of the sliding window is 4. Frames, the user equipment obtains the first to fourth frames through the sliding window, and combines and decodes the frame number indication signals in the four frames. When the decoding is successful, it can be determined that the four frames form a repeated transmission group, thereby obtaining The group number of the repeated transmission group, that is, the repeated transmission group 0, can achieve the combined gain effect of the frame number indication signal, thereby improving the network coverage enhancement; the user equipment acquires the 2-5th frame through the sliding window, and The frame numbers in the four frames indicate signal combining and decoding. When the decoding is unsuccessful, the four frames may be considered as not forming a repeated transmission group, and so on, the user equipment may separately determine three repeated transmission groups and the three. The group number of the duplicate transmission group. The user equipment then determines the frame number of each frame in the first repeated transmission group according to the group number of each repeated transmission group and the time sequence of each frame in the each repeated transmission group, for example, a group of one of the repeated transmission groups For example, the frame number of the first frame in the repeated transmission group is determined to be 0*4+0, and the frame number of the second frame in the repeated transmission group is determined to be 0*4+1. And so on.

The network device needs to determine M identical frame number indication signals sent by the network device through each repeated transmission group. In a feasible implementation manner, the network device may send the frame number in the first frame through the N frames. Before the indication signal, the frame number indication signal transmitted by each of the repeated transmission groups in the N/M repeated transmission groups has been determined. In another possible implementation manner, the network device may determine the frame number indication signal before sending the M identical frame number indication signals through each repeated transmission group, for example, the network device determines to send on the first repeated transmission group. M identical frame number indication signals, transmitting M frame number indication signals on the M frames; and then determining a frame number indication signal sent on the second repeated transmission group, on the second repeated transmission group Send M frame number indication signals, and so on.

The following is described in any of the N/M repeated transmission groups, which are hereinafter referred to as the first repeated transmission group, and the processing of each repeated transmission group in the N/M repeated transmission groups. The manner is the same as that of the first repeated transmission group. The frame number indication signal indicating the group number of the first repeated transmission group occupies a pre-allocated K modulation symbols, and K is an integer greater than or equal to 1.

In a first possible implementation manner, on the network device side, the sending, by the network device, the N frames to the user equipment includes: the network device performing channel coding and rate matching to the K modulations on the group number of the first repeated transmission group a symbol, obtaining a frame number indication signal for indicating a group number of the first repeated transmission group, and then transmitting, by the first repeated transmission group, M pieces for indicating the first repeated transmission group to the user equipment The frame number of the group number indicates the signal. On the user equipment side, the user equipment successfully decodes the combined frame number indication signal, and obtains the identifier of the first repeated transmission consisting of the consecutive M frames, including: the user equipment, the combined frame number indication signal Performing channel decoding to obtain a channel decoding result; when the channel decoding result is verified correctly, the user equipment determines that the consecutive M frames constitute the first repeated transmission group and uses the channel decoding result as the group number of the first repeated transmission group. . That is, when the channel decoding result is correctly verified, the user equipment may determine that the consecutive M frames constitute the first repeated transmission group, and use the channel decoding result as the group number of the first repeated transmission group; when the channel decoding result is incorrectly verified At this time, it can be determined that the consecutive M frames do not constitute a repeated transmission group.

In a second possible implementation, on the network device side, the sending, by the network device, the N frames to the user equipment includes: the network device mapping the group number of the first repeated transmission group to an m sequence of length K And obtaining, by the network device, the m sequence corresponding to the first repeated transmission group; the network device performs π/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps to K modulation symbols, and is used to indicate the The frame number indication signal of the group number of the first retransmission group; then transmitting, by the first retransmission group, M frame number indications for indicating the group number of the first retransmission group to the user equipment signal. On the user equipment side, the user equipment successfully decodes the combined frame number indication signal, and obtains the identifier of the first repeated transmission consisting of the consecutive M frames, including: the user equipment performs the combined frame number indication signal π/4 phase shift BPSK demodulation, obtaining a first sequence of length K; the user equipment separately processes N/M different m sequences of length K and the first sequence to obtain N/M correlations a peak value; when the maximum value of the N/M correlation peaks is greater than a preset value, the user equipment determines that the consecutive M frames constitute the first repeated transmission group, and is used to acquire the N/M The m sequence used by the maximum value of the correlation peaks is the m sequence corresponding to the first repeated transmission group; and the user equipment is mapped according to the group number of the N/M m sequences and the N/M repeated transmission groups. And the m sequence corresponding to the first repeated transmission group, and determining the group number of the first repeated transmission group. Taking N as 12 and M as 4 as an example, the user equipment processes the m sequence A and the first sequence to obtain the correlation peak A, and processes the m sequence B and the first sequence to obtain the correlation peak B. The m sequence C is correlated with the first sequence to obtain the correlation peak C, and the user equipment can determine that the correlation peak A, the correlation peak B, and the correlation peak C have the maximum value, for example, the correlation peak B, when the correlation peak B is greater than the preset value. The user equipment may determine that the consecutive M frames constitute a first repeated transmission group, and determine that the m sequence B is an m sequence corresponding to the first repeated transmission group (ie, used to generate a frame number indication signal on the first repeated transmission group). m sequence); the user equipment according to the mapping relationship between the m sequence A and the group number A of the repeated transmission group, the mapping relationship between the m sequence B and the group number B of the repeated transmission group, and the group number C of the m sequence C and the repeated transmission group The mapping relationship, and the m sequence B, determines that the group number of the first repeated transmission group is the group number B of the repeated transmission group. It should be noted that the foregoing related processing may include auto-correlation processing or cross-correlation processing, etc., which is similar to the prior art, and is not described herein again; the m-sequence is similar to the prior art and will not be described in detail herein. The m-sequence indicating frame number mode provided in this embodiment can implement network coverage enhancement by using a higher code rate.

Optionally, the user equipment separately sets N/M different m sequences of length K and the first Before the sequence is processed, the N/M correlation peaks are obtained, and the user equipment maps the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences. The N/M different m sequences of length K, for example, the network device maps the group numbers of the N/M repeated transmission groups to N/M m sequences according to a certain mapping relationship; and establishes the N The mapping relationship between the /M m sequences and the group number of the N/M repeated transmission groups. For example, the user equipment may map the group number A of the repeated transmission group to the m-sequence A, obtain the m-sequence A, and establish a mapping relationship between the group number A and the m-sequence A of the repeated transmission group; the group number B of the repeated transmission group may be Mapping to the m-sequence B, obtaining the m-sequence B, establishing a mapping relationship between the group number B and the m-sequence B of the repetitive transmission group; mapping the group number C of the repetitive transmission group to the m-sequence C, obtaining the m-sequence C, establishing The mapping relationship between the group number C of the transmission group and the m sequence C.

Optionally, on the network device side, the network device maps the group number of the first retransmission group to an m sequence of length K, and obtains the m sequence corresponding to the first retransmission group, including: the network device Obtaining an m sequence corresponding to the first repeated transmission group according to the group number of the first repeated transmission group and the first m sequence polynomial, wherein the first m sequence polynomial is x ⁷ + x ⁶ +1. Specifically, the initial values of the eight shift registers are 1, 0, 0, 0, 0, 0, 0, 0; the '1' in the initial value corresponds to the shift register of the highest bit (ie, the 8th shift) The register, also known as the 7th shift register, generates an m-sequence based on x ⁷ + x ⁶ +1, where x ⁷ represents the value of the feedback coefficient of the 8th shift register is 1, and x ⁶ represents the 7th The value of the feedback coefficient of the shift register (ie, the shift register No. 6) is 1, and 1 indicates that the value of the feedback coefficient of the first shift register (ie, the shift register No. 0) is 1, and other shift register feedback The value of the coefficient is 0; and the generated m sequence is inverted first and last to obtain the original m sequence. The original m sequence corresponds to the indication sequence of the group number of the first repeated transmission group (for example, the group number 0 of the repeated transmission group); the group number of the second repeated transmission group (for example, the group number "1" of the repeated transmission group) corresponds to The m sequence is obtained by sequentially shifting the original m sequence by "2" bits to the left; the group number of the N/M repeated transmission group (for example, the group number of the repeated transmission group "(N/M)-1")) It is obtained by sequentially shifting the original m sequence by shifting the "2[(N/M)-1]" bit to the left. In order to make full use of the signal dynamic range of the I/Q two-way, the m-sequence indicated by the group number of the repeated transmission group is subjected to π/4 phase-shifted BPSK modulation, that is, the '0' in the m-sequence corresponds to e ^jπ/4 , and the m-sequence 1' corresponds to -e ^jπ/4 ; finally, the modulated m sequence is mapped onto the pre-assigned K modulation symbol resources for carrying the frame number indication signal. On the user equipment side, the user equipment maps the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences, and obtains the N/M lengths of different K. The sequence includes: the user equipment obtaining the N/M lengths of K sequences according to the group number of the N/M repeated transmission groups and the first m sequence polynomial, wherein the first m sequence polynomial is x ⁷ +x ⁶ +1.

Optionally, the group number of the first repeated transmission group is sent to the user equipment by using a log ₂ (N/M) bit information bit, that is, the group number of the first repeated transmission group obtained by the user equipment is a log ₂ ( N/M) bit information bits.

It should be noted that the merging process in the above embodiments may include: maximum likelihood merging, or I/Q merging, etc., which is not limited by the present invention.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A network device, comprising:

a processing unit, configured to determine a synchronization signal and a broadcast information block to be sent;

a sending unit, configured to send, to the user equipment, N frames, where the N frames respectively carry N frame number indication signals, and the N frames each carry the synchronization signal to be sent and a broadcast information block, where the N An integer greater than or equal to 2;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, and a frame number indication signal in any one of the N frames is the same as in the any one of the frames. The synchronization signal and the broadcast information block to be transmitted occupy different modulation symbols.
The network device according to claim 1, wherein each of the N frame number indication signals is different from each other.
The network device according to claim 2, wherein the sending unit is specifically configured to perform channel coding and rate matching on a frame number of the first frame to K modulation symbols, to obtain a frame in the first frame. An indication signal, wherein the K is an integer greater than or equal to 1, the first frame is any one of the N frames; and the first frame is sent to the user equipment for indication The frame number of the frame number of the first frame indicates a signal.
The network device according to claim 2, wherein the sending unit is configured to map a frame number of the first frame to an m sequence of length K, and obtain an m sequence corresponding to the first frame. The K is an integer greater than or equal to 1, the first frame is any one of the N frames, and the network device performs a π/4 phase on the m sequence corresponding to the first frame. Shifting a binary phase shift keyed BPSK modulation and mapping to K modulation symbols to obtain a frame number indication signal in the first frame; the network device transmitting, by the first frame, the user equipment for indicating The frame number indicating signal of the frame number of the first frame.
The network device according to claim 4, wherein the sending unit is configured to map a frame number of the first frame to an m sequence of length K, to obtain an m sequence corresponding to the first frame. The sending unit is specifically configured to obtain, according to the frame number of the first frame and the first m sequence polynomial, an m sequence corresponding to the first frame, where the first m sequence polynomial is x 7 + x 6 +1.
The network device according to any one of claims 3 to 5, wherein the transmitting unit transmits the frame number of the first frame to the user equipment by using a log 2 N-bit information bit.
The network device according to claim 1, wherein the N frames are divided into N/M repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.
The network device according to claim 7, wherein the sending unit is configured to: perform channel coding and rate matching on a group number of the first repeated transmission group to K modulation symbols, and obtain a frame number indication signal of a group number of the first repeated transmission group, wherein the K is an integer greater than or equal to 1, and the first repeated transmission group is any repeated transmission in the N/M repeated transmission groups And transmitting, by the first repeated transmission group, M frame number indication signals for indicating a group number of the first repeated transmission group to the user equipment.
The network device according to claim 7, wherein the sending unit is configured to map the group number of the first repeated transmission group to an m-sequence of length K to obtain the first repeated transmission group. a corresponding m sequence, wherein the K is an integer greater than or equal to 1, the first repeated transmission group is any one of the N/M repeated transmission groups; and the first repeated transmission group Corresponding m sequence performs π/4 phase shift BPSK modulation, and maps to K modulation symbols, obtains the frame number indication signal for indicating the group number of the first repeated transmission group; and passes the first repetition The transmission group transmits M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment.
The network device according to claim 9, wherein the sending unit is configured to map the group number of the first repeated transmission group to an m-sequence of length K to obtain the first repeated transmission group. The corresponding m sequence includes: the sending unit is specifically configured to generate, according to the group number of the first repeated transmission group and the first m sequence polynomial, an m sequence corresponding to the first repeated transmission group, where the An m-sequence polynomial is x 7 + x 6 +1.
The network apparatus according to any one of 8-10 claims, characterized in that the transmission unit group number of the repeated transmission of a first set of bits sent to the by log 2 (N / M) information bits User equipment.
A user equipment, comprising:

a receiving unit, configured to receive N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same broadcast information block. The N is an integer greater than or equal to 2;

a processing unit, configured to obtain, according to a frame number indication signal occupying the first modulation symbol in the N frames, a frame number of the N frames; and N locations occupying the second modulation symbol in the N frames And synthesizing the synchronization signal and the N pieces of the broadcast information block occupying the third modulation symbol in the N frames;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located; the first modulation symbol is different from the second modulation symbol and the third modulation symbol.
The user equipment according to claim 12, wherein each of the N frame number indication signals is different.
The user equipment according to claim 13, wherein the processing unit is configured to obtain a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames, including: The processing unit is configured to perform channel decoding on a frame number indication signal that occupies the first modulation symbol in the first frame, to obtain a frame number of the first frame, where the first frame is the N Any frame in a frame.
The user equipment according to claim 13, wherein the processing unit is configured to obtain a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames, including: The processing unit is configured to perform π/4 phase shift binary phase shift keying BPSK demodulation on a frame number indication signal occupying the first modulation symbol in the first frame, to obtain a first sequence of length K, where The first modulation symbol includes K modulation symbols, the K is an integer greater than or equal to 1, the first frame is any one of the N frames, and the N lengths are different K The m sequences are respectively subjected to correlation processing with the first sequence to obtain N correlation peaks; and the m sequence used for acquiring the maximum of the N correlation peaks is used as the m sequence corresponding to the first frame And determining a frame number of the first frame according to a mapping relationship between the N m sequences and a frame number of the N frames, and an m sequence corresponding to the first frame.
The user equipment according to claim 15, wherein the processing unit is further configured to perform correlation processing on the N different lengths of K and the first sequence to obtain N correlation peaks. Previously, the frame numbers of the N frames are mapped one by one to N m sequences of length K to obtain the N different m sequences of length K; and the N m sequences and the nodes are established. The mapping relationship of the frame numbers of the N frames.
The user equipment according to claim 16, wherein the processing unit is configured to map the frame numbers of the N frames to N sequences of length K in a one-to-one correspondence, to obtain the N lengths. a different m sequence of K, comprising: the processing unit, configured to obtain, according to a frame number of the N frames and a first m sequence polynomial, the N m sequences of length K, wherein the first The m-sequence polynomial is x 7 + x 6 +1.
The user equipment according to any one of claims 14-17, wherein the receiving unit receives the frame number of the first frame by a log 2 N bit information bit.
The user equipment according to claim 12, wherein the N frames are divided into M/N repeated transmission groups, and the consecutive M frames form a repeated transmission group, and each frame in the repeated transmission group The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or An integer equal to 2.
The user equipment according to claim 19, wherein the processing unit is configured to obtain a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames, including: The processing unit is configured to combine the frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain a combined frame number indication signal, and after the combining The frame number indication signal is successfully decoded, and the group number of the first repeated transmission group composed of the consecutive M frames is obtained, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; And determining, according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group, a frame number of each frame in the first repeated transmission group.
The user equipment according to claim 20, wherein the processing unit is configured to successfully decode the combined frame number indication signal, and obtain a group number of the first repeated transmission group composed of the consecutive M frames The processing unit is configured to: perform channel decoding on the merged frame number indication signal to obtain a channel decoding result; and determine, when the channel decoding result is correct, determine the continuous M frame composition The first repeated transmission group is described and the channel decoding result is used as the group number of the first repeated transmission group.
The user equipment according to claim 20, wherein the processing unit is configured to successfully decode the combined frame number indication signal, and obtain a group number of the first repeated transmission group composed of the consecutive M frames The processing unit is configured to perform π/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence of length K, where the frame number indication signal occupies K modulation symbols, The K is an integer greater than or equal to 1; and N/M lengths are K Different m sequences are respectively correlated with the first sequence to obtain N/M correlation peaks; and when the maximum value of the N/M correlation peaks is greater than a preset value, determining the consecutive M frames Forming the first repeated transmission group, and using the m sequence used for acquiring the maximum of the N/M correlation peaks as the m sequence corresponding to the first repeated transmission group; according to the N/M The mapping relationship between the m sequence and the group number of the N/M repeated transmission groups, and the m sequence corresponding to the first repeated transmission group, determines the group number of the first repeated transmission group.
The user equipment according to claim 22, wherein the processing unit is further configured to perform correlation processing on the N/M different m sequences of length K and obtain the N/M. Before the correlation peaks, the group numbers of the N/M repeated transmission groups are mapped one by one to N/M lengths of K sequences, and the N/M lengths of different m sequences of K are obtained. And establishing a mapping relationship between the N/M m sequences and the group number of the N/M repeated transmission groups.
The user equipment according to claim 23, wherein the processing unit is configured to map the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences. Obtaining the N/M different m sequences of length K, comprising: the processing unit, configured to obtain the N/M according to the group number of the N/M repeated transmission groups and the first m sequence polynomial An m-sequence of length K, wherein the first m-sequence polynomial is x 7 + x 6 +1.
The user equipment according to any one of claims 20-24, wherein the receiving unit receives the group number of the first repeated transmission group by a log 2 (N/M) bit information bit.
An information transmission method, comprising:

The network device determines a synchronization signal and a broadcast information block to be transmitted;

The network device sends N frames to the user equipment, where the N frames respectively carry N frame number indication signals, and the N frames carry the synchronization signal to be sent and the broadcast information block, where the N is An integer greater than or equal to 2;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located, and a frame number indication signal in any one of the N frames is the same as in the any one of the frames. The synchronization signal and the broadcast information block to be transmitted occupy different modulation symbols.
The method according to claim 26, wherein each of the N frame number indication signals is different from each other.
The method according to claim 27, wherein said network device is set to a user The N frames to be sent include:

The network device performs channel coding and rate matching on the frame number of the first frame to K modulation symbols, and obtains a frame number indication signal in the first frame, where the K is an integer greater than or equal to 1, The first frame is any one of the N frames;

And the network device sends, by using the first frame, a frame number indication signal for indicating a frame number of the first frame to the user equipment.
The method according to claim 27, wherein the sending, by the network device, the N frames to the user equipment comprises:

The network device maps a frame number of the first frame to an m sequence of length K, and obtains an m sequence corresponding to the first frame, where the K is an integer greater than or equal to 1, the first The frame is any one of the N frames;

The network device performs π/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps to K modulation symbols to obtain a frame number indication signal in the first frame;

And the network device sends, by using the first frame, a frame number indication signal for indicating a frame number of the first frame to the user equipment.
The method according to claim 29, wherein the network device maps the frame number of the first frame to an m-sequence of length K, and obtains the m-sequence corresponding to the first frame, including:

And obtaining, by the network device, the m sequence corresponding to the first frame according to the frame number of the first frame and the first m sequence polynomial, where the first m sequence polynomial is x 7 + x 6 +1.
The method according to any one of claims 28-30, wherein the frame number of the first frame is sent to the user equipment by a log 2 N bit information bit.
The method according to claim 26, wherein said N frames are divided into N/M repeated transmission groups, and consecutive M said frames constitute a repeated transmission group, and each of said repeated transmission groups The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or equal to An integer of 2.
The method according to claim 32, wherein the sending, by the network device, the N frames to the user equipment comprises:

The network device performs channel coding and rate matching on the group number of the first repeated transmission group to K Modulating a symbol, obtaining a frame number indication signal for indicating a group number of the first repeated transmission group, wherein the K is an integer greater than or equal to 1, the first repeated transmission group being the N/M Any of the repeated transmission groups in the duplicate transmission group;

And the network device sends, by using the first repeated transmission group, M frame number indication signals for indicating a group number of the first repeated transmission group to the user equipment.
The method according to claim 32, wherein the sending, by the network device, the N frames to the user equipment comprises:

The network device maps the group number of the first repeated transmission group to an m sequence of length K, and obtains an m sequence corresponding to the first repeated transmission group, where the K is an integer greater than or equal to 1. The first repeated transmission group is any one of the N/M repeated transmission groups;

And the network device performs π/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps to K modulation symbols, and obtains the identifier for indicating the group number of the first repeated transmission group. Frame number indication signal;

And the network device sends, by using the first repeated transmission group, M frame number indication signals for indicating a group number of the first repeated transmission group to the user equipment.
The method according to claim 34, wherein the network device maps the group number of the first repeated transmission group to an m-sequence of length K, and obtains m corresponding to the first repeated transmission group. Sequence, including:

Generating, by the network device, an m sequence corresponding to the first repeated transmission group according to the group number of the first repeated transmission group and the first m sequence polynomial, wherein the first m sequence polynomial is x 7 + x 6 +1.
The method according to any one of claims 33-35, wherein the group number of the first repeated transmission group is transmitted to the user equipment by a log 2 (N/M) bit information bit.
An information transmission method, comprising:

The user equipment receives N frames sent by the network device, where the N frames respectively carry N frame number indication signals, and the N frames all carry the same synchronization signal and the same broadcast information block, where the N is greater than or An integer equal to 2;

Obtaining, by the user equipment, a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames;

The user equipment, for the N frames, occupying the N synchronization signals of the second modulation symbol and N pieces of the broadcast information blocks occupying the third modulation symbol in the N frames are subjected to a combining process;

The frame number indication signal is used to indicate a frame number of a frame in which the frame number indication signal is located; the first modulation symbol is different from the second modulation symbol and the third modulation symbol.
The method according to claim 37, wherein each of the N frame number indication signals is different from each other.
The method according to claim 38, wherein the user equipment obtains the frame number of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames, including:

The user equipment performs channel decoding on the frame number indication signal occupying the first modulation symbol in the first frame, and obtains a frame number of the first frame, where the first frame is in the N frames. Any frame.
The method according to claim 38, wherein the user equipment obtains the frame number of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames, including:

The user equipment performs π/4 phase shift binary phase shift keying BPSK demodulation on the frame number indication signal occupying the first modulation symbol in the first frame to obtain a first sequence of length K, where the A modulation symbol includes K modulation symbols, the K is an integer greater than or equal to 1, and the first frame is any one of the N frames;

The user equipment processes N different m sequences of length K and the first sequence to obtain N correlation peaks;

The user equipment uses an m sequence used to acquire a maximum of the N correlation peaks as an m sequence corresponding to the first frame;

The user equipment determines a frame number of the first frame according to a mapping relationship between the N m sequences and a frame number of the N frames, and an m sequence corresponding to the first frame.
The method according to claim 40, wherein the user equipment separately processes the N different sequences of length K and the first sequence to obtain N correlation peaks, and further includes:

The user equipment maps the frame numbers of the N frames to the n m sequences of length K in a one-to-one correspondence, and obtains the N different m sequences of length K;

The user equipment establishes a mapping relationship between the N m sequences and the frame numbers of the N frames.
The method according to claim 41, wherein the user equipment maps frame numbers of the N frames one by one to N m sequences of length K to obtain the N lengths. Different m sequences for K, including:

The user equipment obtains the N m sequences of length K according to the frame number of the N frames and the first m sequence polynomial, wherein the first m sequence polynomial is x 7 + x 6 +1.
The method according to any one of claims 39-42, wherein the user equipment receives the frame number of the first frame by a log 2 N bit information bit.
The method according to claim 37, wherein said N frames are divided into M/N repeated transmission groups, and consecutive M said frames constitute a repeated transmission group, and each of said repeated transmission groups The frame number indication signal is the same, and the frame number indication signal is generated according to the group number of the repeated transmission group where the frame number indication signal is located, and the frame number indication signals of different repeated transmission groups are different, and the M is greater than or equal to An integer of 2.
The method according to claim 44, wherein the user equipment obtains a frame number of the N frames according to a frame number indication signal occupying the first modulation symbol in the N frames, including:

The user equipment combines frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain a combined frame number indication signal;

The user equipment successfully decodes the combined frame number indication signal, and obtains a group number of the first repeated transmission group composed of the consecutive M frames, where the first repeated transmission group is the N/M Any of the repeated transmission groups;

And determining, by the user equipment, a frame number of each frame in the first repeated transmission group according to a group sequence of the first repeated transmission group and a time sequence of each frame in the first repeated transmission group.
The method according to claim 45, wherein the user equipment successfully decodes the combined frame number indication signal, and obtains a group number of the first repeated transmission group composed of the consecutive M frames, including:

The user equipment performs channel decoding on the combined frame number indication signal to obtain a channel decoding result;

When the channel decoding result is verified correctly, the user equipment determines that the consecutive M frames constitute the first repeated transmission group and uses the channel decoding result as a group number of the first repeated transmission group.
The method according to claim 45, wherein the user equipment successfully decodes the combined frame number indication signal, and obtains a group number of the first repeated transmission group composed of the consecutive M frames, including:

The user equipment performs π/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence of length K, where the frame number indication signal occupies K modulation symbols, and the K is greater than Or an integer equal to 1;

The user equipment separately processes N/M different m sequences of length K and the first sequence to obtain N/M correlation peaks;

When the maximum value of the N/M correlation peaks is greater than a preset value, the user equipment determines that the consecutive M frames constitute the first repeated transmission group, and is used to acquire the N/M The m sequence used for the maximum value of the correlation peaks is used as the m sequence corresponding to the first repeated transmission group;

Determining, by the user equipment, the first repeated transmission according to a mapping relationship between the N/M m sequences and a group number of the N/M repeated transmission groups, and an m sequence corresponding to the first repeated transmission group The group number of the group.
The method according to claim 47, wherein the user equipment separately processes N/M different m sequences of length K and the first sequence to obtain N/M correlation peaks, Also includes:

The user equipment maps the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences, to obtain the N/M different m sequences of length K;

The user equipment establishes a mapping relationship between the N/M m sequences and the group number of the N/M repeated transmission groups.
The method according to claim 48, wherein the user equipment maps the group numbers of the N/M repeated transmission groups one by one to N/M lengths of K sequences, to obtain the N/M different m sequences of length K, including:

Obtaining, by the user equipment, the N/M lengths of K sequences according to the group number of the N/M repeated transmission groups and the first m sequence polynomial, wherein the first m sequence polynomial is x 7 +x 6 +1.
The method according to any one of claims 45 to 49, wherein the user equipment receives the group number of the first repeated transmission group by a log 2 (N/M) bit information bit.
An information transmission system, comprising: the network device according to any one of claims 1 to 11, and the user equipment according to any one of claims 12 to 25.