CN106165470A

CN106165470A - Information transferring method, equipment and system

Info

Publication number: CN106165470A
Application number: CN201480013515.3A
Authority: CN
Inventors: 吴毅凌; 刘铮; 于光炜; 罗超
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2016-11-23
Anticipated expiration: 2034-11-10
Also published as: WO2016074132A1; CN106165470B

Abstract

The embodiment of the present invention provides a kind of information transferring method, equipment and system, and wherein, the method includes: the network equipment determines synchronizing signal to be sent and broadcast message block；Sending N number of frame to subscriber equipment, described N number of frame carries N number of frame number indication signal respectively, and described N number of frame all carries described synchronizing signal to be sent and broadcast message block, and described N is the integer more than or equal to 2；Wherein, described frame number indication signal is for indicating the frame number of described frame number indication signal place frame, and the frame number indication signal in any frame in described N number of frame takies different modulation symbols from the synchronizing signal described to be sent in described any frame and broadcast message block.Owing to the frame number indication signal in each frame, synchronizing signal, broadcast message block separately transmit, the merging gain of synchronizing signal and broadcast message block can be reached, thus strengthen the covering of network.

Description

Information transmission method, equipment and system

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to an information transmission method, equipment and a system.

Background

The current wireless communication system is mainly designed for the communication between people (H2H), and has higher requirements on mobility, time delay and the like. With the development of intelligent terminals and wireless network communication, many Machine Type Communications (MTC) systems that do not require human participation have been developed, and thus, a wireless communication system of a device-To-device (M2M) has appeared, which is an indispensable part in daily life, and these network Communications that do not require human participation are applied To, for example, remote measurement, remote information processing, security and monitoring, public transportation, industrial application, remote meter reading, home application, sales and payment, and the like.

The number of MTC devices in the M2M wireless communication system is much larger than the number of devices for person-to-person communication, but the data packets transmitted by the MTC devices are very small and are not sensitive to delay, so that the required bandwidth is small, and therefore, a narrow-band M2M scheme may be adopted. The narrow band M2M uses single carrier modulation, and the carrier used by the narrow band M2M may be in a Global System for Mobile Communications (GSM) carrier, a Long Term Evolution (Long Term Evolution, LTE) transmission band, or a LTE guard band. As shown in fig. 1, the bandwidth used by the narrow band M2M is 200KHz, and the bandwidth of 200KHz can be divided into 12 Downlink Physical channels, wherein 11 Physical Downlink Shared Channels (PDSCH) and 1 Physical Broadcast Synchronization Channel (PBSCH).

However, many MTC applications are in environments with poor signal coverage, for example, an electricity meter and a water meter are usually installed in a room or even in a basement, etc., where wireless network signals are not good, and the narrowband M2M scheme can achieve network coverage enhancement through repeated transmission, so that MTC devices in poor coverage environment can smoothly communicate. A base station in the narrowband M2M system needs to send the number information (i.e., the frame number indication) of the frame to the MTC device, so that the MTC device performs corresponding operations such as frequency hopping, scheduling, etc. according to the frame number, the frame number indication in the existing GSM is carried in the synchronization information, and the frame number indication in the LTE is carried in the broadcast information, however, the frame number indication in the existing GSM and LTE changes with each frame, and if the narrowband M2M adopts the above frame number indication scheme, the combining gain cannot be obtained, and thus the coverage enhancement effect cannot be achieved.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, equipment and a system, which are used for enhancing the coverage of a network.

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

a sending unit, configured to send N frames to a user equipment, where the N frames carry N frame number indication signals respectively, 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;

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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames.

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 a first frame to K modulation symbols, to obtain a frame number indication signal in the first frame, where K is an integer greater than or equal to 1, and the first frame is any one of the N frames; and sending a frame number indication signal for indicating the frame number of the first frame to the user equipment through the first frame.

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 a first frame onto an m sequence with a length of K, to obtain the m sequence corresponding to the first frame, where K is an integer greater than or equal to 1, and the first frame is any one of the N frames; the network equipment performs pi/4 Phase Shift Binary Phase Shift Keying (BPSK) modulation on the m sequence corresponding to the first frame, and maps the m sequence to K modulation symbols to obtain a frame number indication signal in the first frame; and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.

With reference to the third possible implementation manner 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 onto an m sequence with a length of K, and obtain the m sequence corresponding to the first frame, and the obtaining includes: the sending unit is specifically configured to obtain an m-sequence corresponding to the first frame according to the frame number of the first frame and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+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 a frame number of the first frame by log₂And sending the N information bits to the user equipment.

In a sixth possible implementation manner of the first aspect, the N frames are divided into N/M retransmission groups, M consecutive frames form one retransmission group, a frame number indication signal in each frame in the retransmission group is the same, the frame number indication signal is generated according to a group number of the retransmission group in which the frame number indication signal is located, frame number indication signals of different retransmission groups are different, and M is an integer greater than or 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 specifically configured to perform channel coding and rate matching on a group number of a first retransmission group to K modulation symbols, and obtain a frame number indication signal used for indicating the group number of the first retransmission group, where K is an integer greater than or equal to 1, and the first retransmission group is any one of the N/M retransmission groups; and sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.

With reference to the sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the sending unit is specifically configured to map a group number of a first retransmission group onto an M-sequence with a length of K, to obtain the M-sequence corresponding to the first retransmission group, where K is an integer greater than or equal to 1, and the first retransmission group is any one of the N/M retransmission groups; and carrying out pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and mapping to K modulation symbols to obtain the frame number indication signal for indicating the group number of the first repeated transmission group; and sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the sending unit is configured to map a group number of the first retransmission group to an m-sequence with a length of K, and obtain the m-sequence corresponding to the first retransmission group, and the obtaining includes: the sending unit is specifically configured to generate an m-sequence corresponding to the first retransmission group according to the group number of the first retransmission group and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。

With reference to any one of the seventh to ninth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect, the sending unit passes a group number of the first retransmission group through log₂And (N/M) bit information bits are sent to the user equipment.

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 a network device, where the N frames carry N frame number indication signals respectively, and the N frames carry the same synchronization signal and the same broadcast information block, and N is an integer greater than or equal to 2;

the processing unit is used for acquiring the frame numbers of the N frames according to the frame number indicating signal occupying the first modulation symbol in the N frames; and combining the N synchronization signals occupying the second modulation symbols in the N frames with the N broadcast information blocks occupying the third modulation symbols in the N frames;

the frame number indicating signal is used for indicating the frame number of the frame where the frame number indicating signal is located; the first modulation symbol is different from both 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 obtaining, by the processing unit, frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames includes: the processing unit is specifically configured to perform channel decoding on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a frame number of the first frame, where 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 obtaining, by the processing unit, frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames includes: the processing unit is specifically configured to perform pi/4 phase shift Binary Phase Shift Keying (BPSK) demodulation on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a first sequence with a length of K, where the first modulation symbol includes K modulation symbols, K is an integer greater than or equal to 1, and the first frame is any one of the N frames; respectively carrying out correlation processing on the N different m sequences with the length of K and the first sequence to obtain N correlation peak values; taking an m sequence used for acquiring the maximum value of the N correlation peak values as an m sequence corresponding to the first frame; and determining the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the m sequence corresponding to the first frame.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the processing unit is further configured to map frame numbers of the N frames to N sequences with length K in a one-to-one correspondence manner to obtain the N different m sequences with length K before performing correlation processing on the N different m sequences with length K and the first sequence respectively to obtain N correlation peak values; and establishing a mapping relation between the N m sequences and the frame numbers of the N frames.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the processing unit is configured to map frame numbers of the N frames to N m sequences with a length of K in a one-to-one correspondence manner, and obtain the N different m sequences with the length of K, and the method includes: the processing unit is configured to obtain the N m-sequences with the length K according to the frame numbers of the N frames and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。

With reference to any one of the second to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the receiving unit passes log₂The N information bits receive a frame number of the first frame.

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

With reference to the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the obtaining, by the processing unit, frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames includes: the processing unit is specifically configured to combine frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain combined frame number indication signals; and decoding the merged frame number indication signal successfully to obtain a group number of a first repeated transmission group consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; and determining the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.

With reference to the eighth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, the processing unit is configured to decode the combined frame number indication signal successfully, and obtain a group number of a first retransmission group formed by the consecutive M frames, and the method includes: the processing unit is used for carrying out channel decoding on the combined frame number indication signal to obtain a channel decoding result; and when the channel decoding result is verified to be correct, determining that the continuous M frames form the first repeated transmission group and taking the channel decoding result as the group number of the first repeated transmission group.

With reference to the eighth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, the processing unit is configured to decode the combined frame number indication signal successfully, and obtain a group number of a first retransmission group formed by the consecutive M frames, and the method includes: the processing unit is configured to perform pi/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence with a length of K, where the frame number indication signal occupies K modulation symbols, and K is an integer greater than or equal to 1; respectively carrying out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values; when the maximum value of the N/M correlation peak values is larger than a preset value, determining that the continuous M frames form the first repeated transmission group, and taking an M sequence used for acquiring the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group; and determining the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group.

With reference to the tenth possible implementation manner of the second aspect, in an eleventh possible implementation manner of the second aspect, the processing unit is further configured to map group numbers of the N/M repeated transmission groups to N/M sequences with length K in a one-to-one correspondence manner to obtain N/M different M sequences with length K before performing correlation processing on the N/M different M sequences with length K and the first sequence respectively to obtain N/M correlation peak values; and establishing a mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups.

With reference to 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 map the group numbers of the N/M repeated transmission groups to N/M sequences with a length of K in a one-to-one correspondence manner, and obtain the N/M different M sequences with a length of K, and the method includes: the processing unit is configured to obtain the N/M sequences with the length K according to the group numbers of the N/M repeated transmission groups and a first M-sequence polynomial, where the first M-sequence polynomial is x⁷+x⁶+1。

With reference to any one of the eighth to twelfth possible implementation manners of the second aspect, in a thirteenth possible implementation manner of the second aspect, the receiving unit passes log₂(N/M) bit information bits receive a group number of the first retransmission group.

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

the network equipment determines a synchronous signal and a broadcast information block to be sent;

the network equipment sends N frames to user equipment, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the synchronization signals to be sent and broadcast information blocks, and 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 carries out channel coding and rate matching on a frame number of a first frame to K modulation symbols to obtain a frame number indication signal in the first frame, wherein K is an integer greater than or equal to 1, and the first frame is any one of the N frames; and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.

With reference to the first possible implementation manner 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 equipment maps a frame number of a first frame to an m sequence with the length of K to obtain the m sequence corresponding to the first frame, wherein K is an integer greater than or equal to 1, and the first frame is any one of the N frames; the network equipment carries out pi/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps the m sequence to K modulation symbols to obtain a frame number indication signal in the first frame; and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the mapping, by the network device, the frame number of the first frame onto an m-sequence with a length of K to obtain the m-sequence corresponding to the first frame includes:

the network equipment obtains an m sequence corresponding to the first frame according to the frame number of the first frame and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+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 is determined by log₂And sending the N information bits to the user equipment.

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

With reference to the sixth possible implementation manner 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 includes: the network equipment performs channel coding and rate matching on a group number of a first repeated transmission group to K modulation symbols to obtain a frame number indication signal used for indicating the group number of the first repeated transmission group, wherein K is an integer greater than or equal to 1, and the first repeated transmission group is any repeated transmission group in the N/M repeated transmission groups; and the network equipment sends M frame number indication signals used for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.

With reference to the sixth possible implementation manner 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 equipment maps a group number of a first repeated transmission group to an M sequence with the length of K to obtain the M sequence corresponding to the first repeated transmission group, wherein 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;

the network equipment performs pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps the m sequence to K modulation symbols to obtain the frame number indication signal for indicating the group number of the first repeated transmission group;

and the network equipment sends M frame number indication signals used for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.

With reference to the eighth possible implementation manner of the third aspect, in a ninth possible implementation manner of the third aspect, the mapping, by the network device, the group number of the first retransmission group onto an m-sequence with a length of K to obtain an m-sequence corresponding to the first retransmission group includes: the network equipment generates an m sequence corresponding to the first repeated transmission group according to the group number of the first repeated transmission group and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+1。

With reference to any one of the seventh to ninth possible implementation manners of the third aspect, in a tenth possible implementation manner of the third aspect, a group number of the first retransmission group passes through log₂And (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 method comprises the steps that user equipment receives N frames sent by network equipment, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the same synchronous signals and the same broadcast information blocks, and N is an integer greater than or equal to 2;

the user equipment obtains the frame numbers of the N frames according to the frame number indicating signal occupying the first modulation symbol in the N frames;

the user equipment combines N synchronous signals occupying second modulation symbols in the N frames and N broadcast information blocks occupying third modulation symbols 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 obtaining, by the ue, frame numbers of the N frames according to a frame number indication signal that occupies a first modulation symbol in the N frames includes:

and the user equipment performs channel decoding on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a frame number of the first frame, wherein the first frame is any one of the N frames.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the obtaining, by the ue, frame numbers of the N frames according to a frame number indication signal that occupies a first modulation symbol in the N frames includes:

the user equipment performs pi/4 phase shift Binary Phase Shift Keying (BPSK) demodulation on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a first sequence with the length of K, wherein the first modulation symbol comprises 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 respectively carries out correlation processing on N different m sequences with the length of K and the first sequence to obtain N correlation peak values;

the user equipment takes an m sequence used for acquiring the maximum value of the N correlation peak values as an m sequence corresponding to the first frame;

and the user equipment determines the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the 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, before the performing, by the user equipment, correlation processing on N different m sequences with a length of K and the first sequence respectively to obtain N correlation peak values, the method further includes:

the user equipment maps the frame numbers of the N frames to N m sequences with the length of K in a one-to-one correspondence manner to obtain the N different m sequences with the length of K;

and the user equipment establishes a mapping relation 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 mapping, by the ue, the frame numbers of the N frames to N m sequences with a length of K in a one-to-one correspondence, to obtain the N different m sequences with the length of K, includes:

the user equipment obtains the N m sequences with the length of K according to the frame numbers of the N frames and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+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 passes log₂The N information bits receive a frame number of the first frame.

In a seventh possible implementation manner of the fourth aspect, the N frames are divided into M/N retransmission groups, M consecutive frames form one retransmission group, a frame number indication signal in each frame in the retransmission group is the same, the frame number indication signal is generated according to a group number of the retransmission group in which the frame number indication signal is located, frame number indication signals of different retransmission groups are different, and M is an integer greater than or 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 obtaining, by the user equipment, frame numbers of the N frames according to a frame number indication signal that occupies a first modulation symbol in the N frames includes:

the user equipment combines the frame number indicating signals occupying the first modulation symbol in the continuous M frames in the N frames to obtain combined frame number indicating signals;

the user equipment successfully decodes the merged frame number indication signal to obtain a group number of a first repeated transmission group consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups;

and the user equipment determines the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.

With reference to the eighth possible implementation manner of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the obtaining, by the ue, a group number of a first retransmission group formed by the consecutive M frames by successfully decoding the combined frame number indication signal includes:

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

and when the channel decoding result is verified to be correct, the user equipment determines that the continuous M frames form the first repeated transmission group and takes the channel decoding result as the group number of the first repeated transmission group.

With reference to the eighth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the obtaining, by the ue, a group number of a first retransmission group formed by the consecutive M frames by successfully decoding the combined frame number indication signal includes:

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

the user equipment respectively carries out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values;

when the maximum value of the N/M correlation peak values is larger than a preset value, the user equipment determines that the continuous M frames form the first repeated transmission group, and takes an M sequence used for obtaining the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group;

and the user equipment determines the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group.

With reference to the tenth possible implementation manner of the fourth aspect, in an eleventh possible implementation manner of the fourth aspect, before the performing, by the user equipment, correlation processing on N/M different M sequences with a length of K and the first sequence respectively to obtain N/M correlation peak values, the method further includes:

the user equipment maps the group numbers of the N/M repeated transmission groups to N/M M sequences with the length of K in a one-to-one correspondence manner to obtain the N/M different M sequences with the length of K;

and the user equipment establishes a mapping relation between the N/M M sequences and the group numbers 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 mapping, by the ue, the group numbers of the N/M repeated transmission groups to N/M sequences with a length of K in a one-to-one correspondence manner, so as to obtain the N/M different M sequences with the length of K, includes: the user equipment obtains the N/M M sequences with the length of K according to the group numbers of the N/M repeated transmission groups and a first M sequence polynomial, wherein the first M sequence polynomial is x⁷+x⁶+1。

With reference to any one of the eighth to twelfth possible implementation manners of the fourth aspect, in a thirteenth possible implementation manner of the fourth aspect, the ue passes log₂(N/M) bit information bits receive a group number of the first retransmission group.

In a fifth aspect, an embodiment of the present invention provides an information transmission system, including: the network device provided by the third aspect or various possible implementation manners of the third aspect in the embodiment of the present invention, and the user equipment provided by the fourth aspect or various possible implementation manners of the fourth aspect in the embodiment of the present invention.

According to the information transmission method, the information transmission device and the information transmission system, a network device determines a synchronization signal and a broadcast information block to be sent, and sends N frames to a user device, wherein the N frames respectively carry N frame number indication signals, the N frames both 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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames; since the frame number indication signal in each frame is transmitted separately from the synchronization signal and the broadcast information block, the combination 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, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a diagram illustrating the channel division of a narrowband M2M in the prior art;

FIG. 2 is a schematic structural diagram of a network device according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second network device according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a ue according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second ue according to the present invention;

FIG. 6 is a flowchart illustrating a first embodiment of an information transmission method according to the present invention;

FIG. 7 is a diagram illustrating transmission of a frame number indicator according to an embodiment of the present invention;

FIG. 8 is a flowchart illustrating a second embodiment of an information transmission method according to the present invention;

fig. 9 is a schematic diagram of determining a retransmission group according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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

Fig. 2 is a schematic structural diagram of a network device according to a first embodiment of the present invention, and as shown in fig. 2, the network device according to this embodiment may include: a processing unit 11 and a transmitting unit 12; the processing unit 11 is configured to determine a synchronization signal and a broadcast information block to be sent; a sending unit 12, configured to send N frames to a user equipment, where the N frames carry N frame number indication signals respectively, and the N frames carry the synchronization signal to be sent and the broadcast information block, where 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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames.

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

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

Optionally, the sending unit 12 is specifically configured to map a frame number of a first frame onto an m-sequence with a length of K, to obtain the m-sequence corresponding to the first frame, where K is an integer greater than or equal to 1, and the first frame is any one of the N frames; the network equipment carries out pi/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps the m sequence to K modulation symbols to obtain a frame number indication signal in the first frame; and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.

Optionally, the sending unit 12 is configured to map the frame number of the first frame onto an m-sequence with a length of K, and obtain the m-sequence corresponding to the first frame, where the m-sequence includes: the sending unit 12 obtains an m-sequence corresponding to the first frame according to the frame number of the first frame and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。

Optionally, the sending unit 12 passes the frame number of the first frame by log₂And sending the N information bits to the user equipment.

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

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

Optionally, the sending unit 12 is specifically configured to map a group number of a first retransmission group onto an M-sequence with a length of K, to obtain an M-sequence corresponding to the first retransmission group, where K is an integer greater than or equal to 1, and the first retransmission group is any one of the N/M retransmission groups; and carrying out pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and mapping to K modulation symbols to obtain the frame number indication signal for indicating the group number of the first repeated transmission group; and sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through 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 with a length of K, and obtain the m-sequence corresponding to the first retransmission group, where the sending unit includes: the sending unit 12 is specifically configured to generate an m-sequence corresponding to the first retransmission group according to the group number of the first retransmission group and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。

Optionally, the sending unit 12 passes the group number of the first retransmission group by log₂And (N/M) bit information bits are sent to the user equipment.

The network device of this embodiment may be configured to execute the technical solutions executed by the network device in the following method embodiments of the present invention, and the implementation principles and technical effects are similar, and are not described herein again.

In a hardware implementation, the above sending unit 12 may be a transmitter or a transceiver. The processing unit 11 may be embedded in a hardware form or a processor independent from the network device, or may be stored in a memory of the network device in a software form, so that the processor calls to execute operations corresponding to the above units. The processor may be a Central Processing Unit (CPU), a microprocessor, a single chip, or the like. Referring to fig. 3, fig. 3 is a schematic structural diagram of a second network device according to the present invention, and as shown in fig. 3, the network device of the present embodiment includes a transceiver 21 and a processor 22. Of course, the network device may further include general components such as an antenna, a baseband processing component, a medium radio frequency processing component, and an input/output device, and the embodiments of the present invention are not limited in any way here. The transceiver 21 and processor 22 may be used to perform the operations performed by the network device in the method implementations of the invention 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 codes stored in the memory 23 for performing the operations performed by the network device in the method embodiments of the present invention described below.

It should be noted that the network device shown in fig. 3 may be configured to execute the technical solutions executed by the network device in the following method embodiments of the present invention, and the implementation principles and technical effects are similar and are not described herein again.

Fig. 4 is a schematic structural diagram of a first user equipment embodiment of the present invention, and as shown in fig. 4, the user equipment of this embodiment may include: a receiving unit 31 and a processing unit 32, where the receiving unit 31 is configured to receive N frames sent by a 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, and N is an integer greater than or equal to 2; a processing unit 32, configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames; and combining the N synchronization signals occupying the second modulation symbols in the N frames with the N broadcast information blocks occupying the third modulation symbols in the N frames; the frame number indicating signal is used for indicating the frame number of the frame where the frame number indicating signal is located; the first modulation symbol is different from both the second modulation symbol and the third modulation symbol.

Optionally, the processing unit 32 is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit 32 is specifically configured to perform channel decoding on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a frame number of the first frame, where the first frame is any one of the N frames.

Optionally, the processing unit 32 is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit 32 is specifically configured to perform pi/4 phase shift binary phase shift keying BPSK demodulation on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a first sequence with a length of K, where the first modulation symbol includes K modulation symbols, K is an integer greater than or equal to 1, and the first frame is any one of the N frames; respectively carrying out correlation processing on the N different m sequences with the length of K and the first sequence to obtain N correlation peak values; taking an m sequence used for acquiring the maximum value of the N correlation peak values as an m sequence corresponding to the first frame; and determining the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the m sequence corresponding to the first frame.

Optionally, the processing unit 32 is further configured to map frame numbers of the N frames to N m sequences with a length of K in a one-to-one correspondence manner to obtain N different m sequences with a length of K before performing correlation processing on the N different m sequences with a length of K and the first sequence respectively to obtain N correlation peak values; and establishing a mapping relation 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 to N m sequences with a length of K in a one-to-one correspondence, and obtain the N different m sequences with a length of K, where the method includes: the processing unit 32 is configured to obtain the N m-sequences with the length K according to the frame numbers of the N frames and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。

Alternatively, the receiving unit 31 passes log₂The N information bits receive a frame number of the first frame.

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

Optionally, the processing unit 32 is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit 32 is specifically configured to combine the frame number indication signals occupying the first modulation symbol in the consecutive M frames of the N frames to obtain combined frame number indication signals; and decoding the merged frame number indication signal successfully to obtain a group number of a first repeated transmission group consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; and determining the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.

Optionally, the processing unit 32 is configured to successfully decode the combined frame number indication signal, and obtain a group number of a first retransmission group formed by the consecutive M frames, where the group number includes: the processing unit 32 is configured to perform channel decoding on the combined frame number indication signal to obtain a channel decoding result; and when the channel decoding result is verified to be correct, determining that the continuous M frames form the first repeated transmission group and taking the channel decoding result as the group number of the first repeated transmission group.

Optionally, the processing unit 32 is configured to successfully decode the combined frame number indication signal, and obtain a group number of a first retransmission group formed by the consecutive M frames, where the group number includes: the processing unit 32 is configured to perform pi/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence with a length of K, where the frame number indication signal occupies K modulation symbols, and K is an integer greater than or equal to 1; respectively carrying out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values; when the maximum value of the N/M correlation peak values is larger than a preset value, determining that the continuous M frames form the first repeated transmission group, and taking an M sequence used for acquiring the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group; and determining the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group.

Optionally, the processing unit 32 is further configured to map group numbers of the N/M repeated transmission groups to N/M sequences with length K in a one-to-one correspondence manner to obtain N/M different M sequences with length K before performing correlation processing on the N/M different M sequences with length K and the first sequence, respectively, to obtain N/M correlation peak values; and establishing a mapping relation between the N/M M sequences and the group numbers 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 to N/M sequences with a length of K in a one-to-one correspondence, and obtain the N/M different M sequences with a length of K, where the method includes: the processing unit 32 is configured to obtain the N/M sequences with length K according to the group numbers of the N/M repeated transmission groups and a first M-sequence polynomial, where the first M-sequence polynomial is x⁷+x⁶+1。

Alternatively, the receiving unit 31 passes log₂(N/M) bit information bits receive a group number of the first retransmission group.

The user equipment of this embodiment may be configured to execute the technical solutions executed by the user equipment in the following method embodiments of the present invention, and the implementation principles and technical effects are similar, and are not described herein again.

In a hardware implementation, the above receiving unit 31 may be a receiver or a transceiver. The processing unit 32 may be embedded in a hardware form or a processor independent from the user equipment, or may be stored in a memory of the user equipment in a software form, so that the processor can call and execute operations corresponding to the above units. The processor can be a CPU, a microprocessor, a singlechip and the like. Referring to fig. 5, fig. 5 is a schematic structural diagram of a second ue according to the present invention, and as shown in fig. 5, the ue of the present embodiment includes a transceiver 41 and a processor 42. Of course, the user equipment may further include general components such as an antenna, a baseband processing component, a medium radio frequency processing component, and an input/output device, and the embodiment of the present invention is not limited in any way here. The transceiver 41 and processor 42 may be used to perform the operations performed by the user equipment in the method implementations of the invention 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 codes stored in the memory 43 for performing the operations performed by the user equipment in the method embodiments of the present invention described below.

It should be noted that the user equipment shown in fig. 5 may be configured to execute the technical solution executed by the user equipment in each method embodiment described below in the present invention, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 6 is a flowchart of a first embodiment of an information transmission method according to the present invention, and as shown in fig. 6, the method of this embodiment may include:

s101, the network equipment determines a synchronous signal and a broadcast information block to be sent.

S102, the network equipment sends N frames to user equipment, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the synchronization signals to be sent and broadcast information blocks, and 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 where the frame number indication signal is located, and the frame number indication signal in any one of the N frames, the synchronization signal to be sent in any one of the frames, and the broadcast information block to be sent in any one of the frames all occupy different modulation symbols. Specifically, the network device sends the Synchronization Signal, the Broadcast Information Block (BIB) and a Frame number Indication Signal (FIIS) once through each of the N frames, where the Synchronization Signal may include a Primary Synchronization Signal (PSS) and/or a Secondary Synchronization Signal (SSS).

Specifically, the network device may determine a synchronization signal and a broadcast information block 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 N frames, and the frame number indication signal, the synchronization signal and the broadcast information block in each frame all occupy different modulation symbols, as shown in fig. 7, the N frames constitute a super frame, in which the synchronization signal transmitted in each frame is the same and the broadcast information block transmitted 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 a first modulation symbol, the synchronization signalThe number occupies a second modulation symbol, and 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 it needs to be described that the second modulation symbol may be the same as or different from the third modulation symbol; the synchronous signal and the broadcast information block are not transmitted on the modulation symbol occupied by the frame number indication signal, the main synchronous signal occupies K in each frame_PSSOne modulation symbol, the secondary synchronization signal occupying K in each frame_SSSA modulation symbol, a frame number indicating the K occupied by the signal in each frame_FIISOne modulation symbol, the broadcast information block occupying K in each frame_BIBIn the example shown in fig. 7, the network device first transmits the primary synchronization signal and the secondary synchronization signal, then transmits the frame number indication signal, and then transmits the broadcast information block in each frame. It should be noted that the transmission order of the frame number indication signal, 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.

Accordingly, the user equipment receives the N frames transmitted by the network equipment, since the frame number indication signal in each frame is different from the modulation symbol occupied by the synchronization signal and the broadcast information block, the frame number indication signal is transmitted separately with respect to the synchronization signal and the broadcast information block and is not carried in the synchronization signal or the broadcast information block for transmission, and since the protocol can specify the modulation symbol occupied by the synchronization signal, the modulation symbol occupied by the broadcast information block, and the modulation symbol occupied by the frame number indication signal in one frame, the user equipment can determine the modulation symbol occupied by the synchronization signal (such as the second modulation symbol) in each of the N frames, the modulation symbol occupied by the broadcast information block (such as the third modulation symbol) in each of the N frames, the modulation symbol occupied by the frame number indication signal (such as the first modulation symbol) in each of the N frames, therefore, the synchronization signals received by the user equipment on the first modulation symbol of each frame are the same, and the broadcast information blocks received on the second modulation symbol of each frame are also the same, so that the user equipment can combine the N synchronization signals in the N frames to achieve the combining gain of the synchronization signals, and the user equipment can also combine the N broadcast information blocks in the N frames to achieve the combining gain of the broadcast information blocks, thereby enhancing the coverage of the network.

The information transmission method provided by the embodiment of the invention determines a synchronization signal and a broadcast information block to be sent through network equipment, and sends N frames to user equipment, wherein the N frames respectively carry N frame number indication signals, and the N frames both carry the synchronization signal and the broadcast information block to be sent; 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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames; because the frame number indication signal, the synchronous signal and the broadcast information block in each frame are transmitted separately, the combination gain of the synchronous signal and the broadcast information block can be achieved, thereby enhancing the coverage of the network.

Fig. 8 is a flowchart of a second embodiment of the information transmission method of the present invention, and as shown in fig. 8, the method of this embodiment may include:

s201, a user device receives N frames sent by a network device, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the same synchronization signal and the same broadcast information block, and N is an integer greater than or equal to 2.

S202, the user equipment obtains the frame numbers of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames.

S203, the ue combines the N synchronization signals occupying the second modulation symbols in the N frames and the N broadcast information blocks occupying the third modulation symbols in the N frames.

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

The protocol may specify the modulation symbol occupied by the synchronization signal, the modulation symbol occupied by the broadcast information block, and the modulation symbol occupied by the frame number indication signal in one frame. Therefore, the ue may determine a modulation symbol (e.g., a first modulation symbol) occupied by the frame number indication signal in each of the N frames, a modulation symbol (e.g., a second modulation symbol) occupied by the synchronization signal in each of the N frames, and a modulation symbol (e.g., a third modulation symbol) occupied by the broadcast information block in each of the N frames, where a transmission manner of the frame number indication signal, the synchronization signal, and the broadcast information block in each frame may be as shown in fig. 7, and a detailed description may refer to a related description in the first embodiment of the method of the present invention, which is not repeated herein, and it needs to be noted that a transmission sequence of the frame number indication signal, 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.

Because the frame number indication signal in each frame is different from the modulation symbol occupied by the synchronization signal and the broadcast information block, the frame number indication signal is received separately and is not carried in the synchronization signal or the broadcast information block for transmission, 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. And the synchronization signals received by the user equipment on the first modulation symbol of each frame are the same, and the broadcast information blocks received on the second modulation symbol of each frame are also the same, so that the user equipment can combine the N synchronization signals in the N frames to achieve the combining gain of the synchronization signals, and the user equipment can also combine the N broadcast information blocks in the N frames to achieve the combining gain of the broadcast information blocks, thereby enhancing the coverage of the network. It should be noted that the second modulation symbol may be the same as, or may be the same as, the user equipment may perform combining processing on the N synchronization signals and the N broadcast information blocks at the same time if the second modulation symbol is the same as the third modulation symbol; if the second modulation symbol is different from the third modulation symbol, the ue may perform combining processing on the N synchronization signals and the N broadcast information blocks, respectively.

The information transmission method provided by the embodiment of the invention receives N frames sent by network equipment through user equipment, wherein the N frames respectively carry N frame number indicating signals, and the N frames both carry the same synchronous signals and the same broadcast information blocks; acquiring frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames; combining the N synchronization signals occupying the second modulation symbols in the N frames and the N broadcast information blocks occupying the third modulation symbols in the N frames; the frame number indicating signal is used for indicating the frame number of the frame where the frame number indicating signal is located; the first modulation symbol is different from both the second modulation symbol and the third modulation symbol; since the frame number indication signal in each frame is transmitted separately from the synchronization signal and the broadcast information block, the combination gain of the synchronization signal and the broadcast information block can be achieved, thereby enhancing the coverage of the network.

In a third embodiment of the information transmission method of the present invention, on the basis of the first or second embodiment of the method of the present invention, in the present embodiment, each frame number indication signal in the N frame number indication signals is different, and the frame number indication information changes with the change of the frame, that is, the frame number indication signal in the present 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, and in a possible implementation, the network device may determine the frame number indication signal sent through each of the N frames before sending the frame number indication signal through the first frame of the N frames. In another possible implementation, the network device may determine the frame number indicator before transmitting the frame number indicator through each frame, for example, the network device determines the frame number indicator transmitted on the first frame on which the frame number indicator is transmitted; then, the frame number indication signal sent on the second frame is determined, and the frame number indication signal is sent on the second frame, and so on.

The following description is made with reference to any one of N frames, which is referred to as a first frame hereinafter, where each of the N frames is processed in the same manner as the first frame, and a frame number indication signal for indicating a frame number of the first frame occupies first modulation symbols, that is, K modulation symbols allocated in advance, in the first frame, where K is an integer greater than or equal to 1.

In a first possible implementation manner, on the network device side, the network device sending N frames to the user device includes: the network equipment carries out channel coding and rate matching to K modulation symbols on the frame number of the first frame to obtain a frame number indicating signal in the first frame, and then sends the frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame. At the user equipment side, the user equipment obtains the frame numbers of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames, and the method comprises the following steps: and the user equipment performs channel decoding on the frame number indication signal occupying the first modulation symbol in the first frame to obtain the frame number of the first frame. The frame number of the first frame in this embodiment passes log₂N information bits are sent to the user equipment, that is, the frame number of the first frame obtained by the user equipment is log₂N information bits, the information bits carried by the K modulation symbols being larger than the log₂N information bits, thereby ensuring the robustness of the frame number indication signal when the first frame is transmitted and enhancing the network coverage by reducing the coding efficiency.

In a second possible implementation manner, on the network device side, the network device sending N frames to the user device includes: the network device maps the frame number of the first frame to an m sequence with the length of K to obtain the m sequence corresponding to the first frame, for example, the network device maps the frame number of the first frame to the m sequence according to a certain mapping relation; then, the network device performs pi/4 Phase Shift Keying (e.g., clockwise pi/4 Phase Shift or counterclockwise pi/4 Phase Shift) Binary Phase Shift Keying (BPSK) modulation on the obtained m sequence corresponding to the first frame, maps the m sequence to K modulation symbols, obtains a frame number indication signal in the first frame, and then sends a frame number indication signal for indicating the frame number of the first frame to the user equipment through the first frame. At the user equipment side, the user equipment obtains the frame numbers of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames, including: the user equipment carries out pi/4 phase shift BPSK demodulation on the frame number indication signal occupying the first modulation symbol in the first frame to obtain a first sequence with the length of K; the user equipment respectively carries out correlation processing on N different m sequences with the length of K and the first sequence to obtain N correlation peak values; then the user equipment takes an m sequence used for acquiring the maximum value in the N correlation peak values as an m sequence corresponding to the first frame; and the user equipment determines the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the m sequence corresponding to the first frame. Taking N as an example to be 3, the ue performs correlation processing on the m-sequence a and the first sequence to obtain a correlation peak a, performs correlation processing on the m-sequence B and the first sequence to obtain a correlation peak B, and performs correlation processing on the m-sequence C and the first sequence to obtain a correlation peak C, and the ue may determine that a maximum value among the correlation peak a, the correlation peak B, and the correlation peak C is, for example, the correlation peak B, so that the ue may determine that the m-sequence B is an m-sequence corresponding to the first frame (i.e., an m-sequence used for generating a frame number indication signal on the first frame); and the user equipment determines the frame number of the first frame as the frame number B of the frame according to the mapping relation between the m sequence A and the frame number A of the frame, the mapping relation between the m sequence B and the frame number B of the frame, the mapping relation between the m sequence C and the frame number C of the frame and the m sequence B. It should be noted that the correlation process may include an auto-correlation process or a cross-correlation process, which is similar to the prior art and is not described herein again; the m-sequence is also similar to the prior art and will not be described in detail here. The m-sequence-based frame number indication mode provided by this embodiment can implement network coverage enhancement through a higher code rate.

Optionally, before the ue correlates N different m sequences with a length of K with the first sequence to obtain N correlation peaks, the method further includes: the user equipment maps the frame numbers of the N frames to N m sequences with the length of K in a one-to-one correspondence manner to obtain the N different m sequences with the length of K, for example, the network equipment maps the frame numbers of the N frames to the N m sequences one by one according to a certain mapping relation; and establishing a mapping relation between the N m sequences and the frame numbers of the N frames. For example: the user equipment can map the frame number A of the frame to the m sequence A to obtain the m sequence A and establish the mapping relation between the frame number A of the frame and the m sequence A; the frame number B of the frame can be mapped to the m sequence B to obtain the m sequence B, and the mapping relation between the frame number B of the frame and the m sequence B is established; the frame number C of the frame may be mapped to the m-sequence C to obtain the m-sequence C, and a mapping relationship between the frame number C of the frame and the m-sequence C is established.

Optionally, on the network device side, the network device maps the frame number of the first frame to an m-sequence with a length of K, to obtain the m-sequence corresponding to the first frame, including: the network device obtains an m-sequence corresponding to the first frame according to the frame number of the first frame and a first m-sequence polynomial, wherein the first m-sequence polynomial is x⁷+x⁶+1. Specifically, the initial values of the 8 shift registers are 1,0,0,0,0,0,0, 0; the '1' in the initial value corresponds to the shift register with the highest bit (i.e. the 8 th shift register, also called the 7 th shift register), according to x⁷+x⁶+1, generating an m-sequence, wherein x⁷The value representing the feedback coefficient of the 8 th shift register is 1, x⁶The value of the feedback coefficient of the 7 th shift register (namely, the No. 6 shift register) is 1, 1 represents that the value of the feedback coefficient of the 1 st shift register (namely, the No. 0 shift register) is 1, and the values of the feedback coefficients of other shift registers are 0; and performing head-to-tail inversion on the generated m sequence to obtain an original m sequence. The original m sequence corresponds to an indication sequence of a frame number of the 1 st frame (for example, the frame number 0 of the frame); the m sequence corresponding to the frame number of the 2 nd frame (for example, the frame number of the frame is '1') is obtained by sequentially circularly moving left '2' bits from the original m sequence; the m-sequence corresponding to the frame number of the nth frame (e.g., the frame number of the frame "N-1") is obtained by sequentially circularly left-shifting the original m-sequence by "2 (N-1)" bits. In order to fully utilize the dynamic range of the signals of the two paths of I/Q, pi/4 phase shift BPSK modulation is carried out on the m sequence indicated by the frame number, namely, e corresponds to '0' in the m sequence^jπ/4The '1' in the m sequence corresponds to-e^jπ/4(ii) a And finally mapping the modulated m sequence to K modulation symbol resources which are allocated in advance and used for bearing the frame number indication signal. At the user equipment side, the user equipment maps the frame numbers of the N frames in a one-to-one correspondence mannerShooting to N m sequences with the length of K to obtain the N different m sequences with the length of K, wherein the N different m sequences with the length of K comprise: the UE obtains the N m-sequences with the length of K according to the frame numbers of the N frames and a first m-sequence polynomial, wherein the first m-sequence polynomial is x⁷+x⁶+1。

Optionally, the frame number of the first frame in this embodiment passes log₂N information bits are sent to the user equipment, that is, the frame number of the first frame obtained by the user equipment is log₂N bits of information.

In a fourth embodiment of the information transmission method of the present invention, on the basis of the first or second embodiment of the method of the present invention, in this embodiment, N frames are divided into N/M retransmission groups, M consecutive frames form one retransmission group, the frame number indication signal in each frame in the retransmission group is the same, and the frame number indication signal does not change with the change of the frame in the same retransmission group, that is, the frame number indication signal in this embodiment performs retransmission together with the synchronization signal and the broadcast information block in the same retransmission group. 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, the frame number indication signals of different repeated transmission groups are different, and M is an integer greater than or equal to 2. At the user equipment side, the user equipment obtains the frame numbers of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames, including: the user equipment combines the frame number indicating signals occupying the first modulation symbol in the continuous M frames in the N frames to obtain combined frame number indicating signals; the UE successfully decodes the merged frame number indication signal to obtain a group number of a first repeated transmission block consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; and the user equipment determines the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.

For example: to illustrate with N being 12 and M being 4, 1-4 frames (i.e., frames 0, 1, 2, 3) are used as a first retransmission group (i.e., retransmission group 0), 5-8 frames (i.e., frames 4, 5, 6, 7) are used as a second retransmission group (i.e., retransmission group 1), 9-12 frames (i.e., frames 8, 9, 10, 11) are used as a third retransmission group (i.e., retransmission group 2), the network device repeatedly transmits the synchronization signal and the broadcast information block 12 times through the 1-12 frames, and the network device transmits a frame number indication signal for indicating the first retransmission group through 1 st to 4 th frames respectively, a frame number indication signal for indicating the second retransmission group is transmitted through the 5 th to 8 th frames respectively, and respectively transmitting a frame number indication signal for indicating a third repeated transmission group through 9 th to 12 th frames. The ue determines which frames belong to the same retransmission group during the reception of the 12 frames, for example: the user equipment can perform blind detection through the sliding window for determination, as shown in fig. 9, the size of the sliding window is 4 frames, the user equipment obtains the 1 st to 4 th frames through the sliding window, and merges and decodes the frame number indicating signals in the 4 frames, and when the decoding is successful, the 4 frames can be determined to form a repeated transmission group, so as to obtain the group number of the repeated transmission group, (i.e. the repeated transmission group 0), the merging gain effect of the frame number indicating signals can be achieved, and further the network coverage enhancement can be improved; the user equipment acquires the 2 nd to 5 th frames through the sliding window, merges and decodes the frame number indication signals in the 4 frames, and when the decoding is unsuccessful, the 4 frames can be considered as not forming a repeated transmission group, and so on, the user equipment can respectively determine three repeated transmission groups and the group numbers of the three repeated transmission groups. Then, the ue determines the frame number of each frame in the first retransmission group according to the group number of each retransmission group and the time sequence of each frame in each retransmission group, for example: for example, the group number of one retransmission group is 0, the frame number of the first frame in the retransmission group is determined to be 0 × 4+0, the frame number of the second frame in the retransmission group is determined to be 0 × 4+1, and so on.

In a possible implementation, the network device may already determine the frame number indication signal sent by each of the N/M retransmission groups before sending the frame number indication signal by the first frame of the N frames. In another possible implementation, the network device may determine the frame number indicator before sending M identical frame number indicator through each duplicate transmission group, for example, the network device determines M identical frame number indicator sent on the first duplicate transmission group, and sends M frame number indicator on the M frames; and then determining a frame number indication signal sent on a second repeated transmission group, sending M frame number indication signals on the second repeated transmission group, and so on.

The following description is made with reference to any one of N/M retransmission groups, which is referred to as a first retransmission group hereinafter, where each of the N/M retransmission groups is processed in the same manner as the first retransmission group, and a frame number indication signal indicating a group number of the first retransmission group occupies K modulation symbols allocated in advance, where K is an integer greater than or equal to 1.

In a first possible implementation manner, on the network device side, the network device sending N frames to the user equipment includes: the network equipment carries out channel coding and rate matching on the group number of a first repeated transmission group to K modulation symbols, obtains a frame number indication signal used for indicating the group number of the first repeated transmission group, and then sends M frame number indication signals used for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group. At the ue side, the ue successfully decodes the combined frame number indicator to obtain the identifier of the first retransmission consisting of the consecutive M frames, including: the user equipment carries out channel decoding on the combined frame number indication signal to obtain a channel decoding result; when the channel decoding result is verified to be correct, the UE determines that the continuous M frames form the first retransmission group and takes the channel decoding result as the group number of the first retransmission group. That is, when the channel decoding result is verified to be correct, the ue may determine that the consecutive M frames form a first retransmission group, and use the channel decoding result as a group number of the first retransmission group; when the channel decoding result is checked for errors, it may be determined that the consecutive M frames do not constitute one retransmission group.

In a second possible implementation manner, on the network device side, the sending, by the network device, the N frames to the user equipment includes: the network equipment maps the group number of the first repeated transmission group to an m sequence with the length of K to obtain the m sequence corresponding to the first repeated transmission group; the network equipment carries out pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps the m sequence to K modulation symbols to obtain the frame number indicating signal for indicating the group number of the first repeated transmission group; and then sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group. At the ue side, the ue successfully decodes the combined frame number indicator to obtain the identifier of the first retransmission consisting of the consecutive M frames, including: the user equipment carries out pi/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence with the length of K; the user equipment respectively carries out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values; when the maximum value of the N/M correlation peak values is larger than a preset value, the user equipment determines that the continuous M frames form the first repeated transmission group, and takes an M sequence used for obtaining the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group; and the user equipment determines the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group. Taking N as 12 and M as 4 as an example, the ue performs correlation processing on the M-sequence a and the first sequence to obtain a correlation peak a, performs correlation processing on the M-sequence B and the first sequence to obtain a correlation peak B, and performs correlation processing on the M-sequence C and the first sequence to obtain a correlation peak C, and the ue may determine that a maximum value of the correlation peak a, the correlation peak B, and the correlation peak C is, for example, the correlation peak B, and when the correlation peak B is greater than a preset value, the ue may determine that the consecutive M frames form a first retransmission group and determine that the M-sequence B is an M-sequence corresponding to the first retransmission group (i.e., an M-sequence used for generating a frame number indication signal on the first retransmission group); and the user equipment determines the group number of the first repeated transmission group as the group number B of the repeated transmission group according to the mapping relation between the m sequence A and the group number A of the repeated transmission group, the mapping relation between the m sequence B and the group number B of the repeated transmission group, the mapping relation between the m sequence C and the group number C of the repeated transmission group and the m sequence B. It should be noted that the correlation process may include an auto-correlation process or a cross-correlation process, which is similar to the prior art and is not described herein again; the m-sequence is also similar to the prior art and will not be described in detail here. The m-sequence-based frame number indication mode provided by this embodiment can implement network coverage enhancement through a higher code rate.

Optionally, before the ue performs correlation processing on N/M different M sequences with a length of K and the first sequence to obtain N/M correlation peak values, the method further includes: the user equipment maps the group numbers of the N/M repeated transmission groups to N/M M sequences with the length of K in a one-to-one correspondence manner to obtain the N/M different M sequences with the length of K, for example, the network equipment maps the group numbers of the N/M repeated transmission groups to the N/M M sequences one by one according to a certain mapping relation; and establishing a mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups. For example: the user equipment can map the group number A of the repeated transmission group to the m sequence A to obtain the m sequence A, and establish the mapping relation between the group number A of the repeated transmission group and the m sequence A; mapping the group number B of the repeated transmission group to the m sequence B to obtain the m sequence B, and establishing a mapping relation between the group number B of the repeated transmission group and the m sequence B; the group number C of the repeat transmission group may be mapped to the m-sequence C to obtain the m-sequence C, and a mapping relationship between the group number C of the repeat transmission group and the m-sequence C is established.

Optionally, at the network device side, the network device maps the group number of the first retransmission group to an m-sequence with a length of K, to obtain an m-sequence corresponding to the first retransmission group, where the m-sequence includes: the network device obtains an m-sequence corresponding to the first repeated transmission group according to the group number of the first repeated transmission group and a first m-sequence polynomial, wherein the first m-sequence polynomial is x⁷+x⁶+1. In particular toThe initial values of the 8 shift registers are 1,0,0,0,0,0,0, 0; the '1' in the initial value corresponds to the shift register with the highest bit (i.e. the 8 th shift register, also called the 7 th shift register), according to x⁷+x⁶+1, generating an m-sequence, wherein x⁷The value representing the feedback coefficient of the 8 th shift register is 1, x⁶The value of the feedback coefficient of the 7 th shift register (namely, the No. 6 shift register) is 1, 1 represents that the value of the feedback coefficient of the 1 st shift register (namely, the No. 0 shift register) is 1, and the values of the feedback coefficients of other shift registers are 0; and performing head-to-tail inversion on the generated m sequence to obtain an original m sequence. The original m sequence corresponds to an indication sequence of the group number of the 1 st repeated transmission group (for example, the group number 0 of the repeated transmission group); the m sequence corresponding to the group number of the 2 nd repeated transmission group (for example, the group number of the repeated transmission group is '1') is obtained by sequentially circularly moving left by '2' bits from the original m sequence; the M sequence corresponding to the group number of the N/M repeated transmission groups (for example, the group number of the repeated transmission group (N/M) -1) is circularly and leftwards shifted by 2[ (N/M) -1 ] from the original M sequence]"bit" results. In order to fully utilize the dynamic range of signals of two paths of I/Q, pi/4 phase shift BPSK modulation is carried out on the m sequence indicated by the group number of the repeated transmission group, namely, 0 in the m sequence corresponds to e^jπ/4The '1' in the m sequence corresponds to-e^jπ/4(ii) a And finally mapping the modulated m sequence to K modulation symbol resources which are allocated in advance and used for bearing the frame number indication signal. At the ue side, the ue maps the group numbers of the N/M retransmission groups to N/M sequences with length K in a one-to-one correspondence manner, and obtains the N/M different M sequences with length K, including: the UE obtains the N/M M sequences with the length of K according to the group numbers of the N/M repeated transmission groups and a first M sequence polynomial, wherein the first M sequence polynomial is x⁷+x⁶+1。

Optionally, the group number of the first retransmission group passes log₂(N/M) bit information bits are sent to the UE, that is, the group number of the first retransmission group obtained by the UE is a log₂(N/M) bits of information.

It should be noted that the merging process in the foregoing embodiments may include: maximum likelihood combining, or I/Q combining, etc., which are not limiting of the present invention.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

A network device, comprising:

a processing unit for determining a synchronization signal and a broadcast information block to be transmitted;

a sending unit, configured to send N frames to a user equipment, where the N frames carry N frame number indication signals respectively, 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;

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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames.
The network device of claim 1, wherein each of the N frame number indicator signals is different.
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 a first frame to K modulation symbols, to obtain a frame number indication signal in the first frame, where K is an integer greater than or equal to 1, and the first frame is any one of the N frames; and sending a frame number indication signal for indicating the frame number of the first frame to the user equipment through the first frame.
The network device according to claim 2, wherein the sending unit is specifically configured to map a frame number of a first frame onto an m-sequence with a length K, to obtain the m-sequence corresponding to the first frame, where K is an integer greater than or equal to 1, and the first frame is any one of the N frames; the network equipment carries out pi/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps the m sequence to K modulation symbols to obtain a frame number indication signal in the first frame; and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through 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 onto an m-sequence with a length K, and obtain the m-sequence corresponding to the first frame, and includes: the sending unit is specifically configured to obtain an m-sequence corresponding to the first frame according to the frame number of the first frame and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。
The network device according to any of claims 3-5, wherein the sending unit passes the frame number of the first frame by log₂And sending the N information bits to the user equipment.
The network device according to claim 1, wherein the N frames are divided into N/M retransmission groups, M consecutive frames form one retransmission group, the frame number indication signal in each frame in the retransmission group is the same, the frame number indication signal is generated according to the group number of the retransmission group in which the frame number indication signal is located, the frame number indication signals of different retransmission groups are different, and M is an integer greater than or equal to 2.
The network device according to claim 7, wherein the sending unit is specifically configured to perform channel coding and rate matching on a group number of a first retransmission group to K modulation symbols, to obtain a frame number indication signal indicating the group number of the first retransmission group, where K is an integer greater than or equal to 1, and the first retransmission group is any one of the N/M retransmission groups; and sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.
The network device according to claim 7, wherein the sending unit is specifically configured to map a group number of a first retransmission group onto an M-sequence with a length of K, to obtain an M-sequence corresponding to the first retransmission group, where K is an integer greater than or equal to 1, and the first retransmission group is any one of the N/M retransmission groups; and carrying out pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and mapping to K modulation symbols to obtain the frame number indication signal for indicating the group number of the first repeated transmission group; and sending M frame number indication signals for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.
The network device of claim 9, wherein the sending unit is configured to map a group number of the first retransmission group to an m-sequence with a length of K, and obtain the m-sequence corresponding to the first retransmission group, and includes: the sending unit is specifically configured to generate the first m-sequence polynomial based on the group number of the first retransmission group and the first m-sequence polynomialForming an m-sequence corresponding to the first repeated transmission group, wherein the first m-sequence polynomial is x⁷+x⁶+1。
The network device according to any of claims 8-10, wherein the sending unit passes a group number of the first retransmission group through log₂And (N/M) bit information bits are sent to the user equipment.
A user device, comprising:

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

the processing unit is used for acquiring the frame numbers of the N frames according to the frame number indicating signal occupying the first modulation symbol in the N frames; and combining the N synchronization signals occupying the second modulation symbols in the N frames with the N broadcast information blocks occupying the third modulation symbols in the N frames;

the frame number indicating signal is used for indicating the frame number of the frame where the frame number indicating signal is located; the first modulation symbol is different from both the second modulation symbol and the third modulation symbol.
The UE of claim 12, wherein each of the N indication signals is different.
The ue of claim 13, wherein the processing unit is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit is specifically configured to perform channel decoding on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a frame number of the first frame, where the first frame is any one of the N frames.
The ue of claim 13, wherein the processing unit is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit is specifically configured to perform pi/4 phase shift Binary Phase Shift Keying (BPSK) demodulation on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a first sequence with a length of K, where the first modulation symbol includes K modulation symbols, K is an integer greater than or equal to 1, and the first frame is any one of the N frames; respectively carrying out correlation processing on the N different m sequences with the length of K and the first sequence to obtain N correlation peak values; taking an m sequence used for acquiring the maximum value of the N correlation peak values as an m sequence corresponding to the first frame; and determining the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the m sequence corresponding to the first frame.
The ue of claim 15, wherein the processing unit is further configured to map frame numbers of the N frames to N m sequences with length K in a one-to-one correspondence manner to obtain the N different m sequences with length K before performing correlation processing on the N different m sequences with length K and the first sequence respectively to obtain N correlation peak values; and establishing a mapping relation between the N m sequences and the frame numbers of the N frames.
The ue of claim 16, wherein the processing unit is configured to map frame numbers of the N frames to N m sequences with length K in a one-to-one correspondence, and obtain the N different m sequences with length K, and includes: the processing unit is configured to obtain the N m-sequences with the length K according to the frame numbers of the N frames and a first m-sequence polynomial, where the first m-sequence polynomial is x⁷+x⁶+1。
The user equipment according to any of claims 14-17, characterized in thatSaid receiving unit passes log₂The N information bits receive a frame number of the first frame.
The UE of claim 12, wherein the N frames are divided into M/N retransmission groups, M consecutive frames form one retransmission group, a frame number indicator in each frame in the retransmission group is the same, the frame number indicator is generated according to a group number of the retransmission group in which the frame number indicator is located, frame number indicators of different retransmission groups are different, and M is an integer greater than or equal to 2.
The ue of claim 19, wherein the processing unit is configured to obtain frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames, and includes: the processing unit is specifically configured to combine frame number indication signals occupying the first modulation symbol in consecutive M frames of the N frames to obtain combined frame number indication signals; and decoding the merged frame number indication signal successfully to obtain a group number of a first repeated transmission group consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups; and determining the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.
The ue of claim 20, wherein the processing unit is configured to successfully decode the combined frame number indicator to obtain a group number of a first retransmission group consisting of the M consecutive frames, and comprises: the processing unit is used for carrying out channel decoding on the combined frame number indication signal to obtain a channel decoding result; and when the channel decoding result is verified to be correct, determining that the continuous M frames form the first repeated transmission group and taking the channel decoding result as the group number of the first repeated transmission group.
The ue of claim 20, wherein the processing unit is configured to successfully decode the combined frame number indicator to obtain a group number of a first retransmission group consisting of the M consecutive frames, and comprises: the processing unit is configured to perform pi/4 phase shift BPSK demodulation on the combined frame number indication signal to obtain a first sequence with a length of K, where the frame number indication signal occupies K modulation symbols, and K is an integer greater than or equal to 1; respectively carrying out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values; when the maximum value of the N/M correlation peak values is larger than a preset value, determining that the continuous M frames form the first repeated transmission group, and taking an M sequence used for acquiring the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group; and determining the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group.
The ue of claim 22, wherein the processing unit is further configured to map group numbers of the N/M repeated transmission groups to N/M sequences with length K in a one-to-one correspondence manner to obtain N/M different M sequences with length K before performing correlation processing on the N/M different M sequences with length K with the first sequence to obtain N/M correlation peak values, respectively; and establishing a mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups.
The ue of claim 23, wherein the processing unit is configured to map the group numbers of the N/M retransmission groups to N/M sequences with length K in a one-to-one correspondence, and obtain the N/M different M sequences with length K, and includes: the processing unit is configured to obtain the N/M sequences with the length K according to the group numbers of the N/M repeated transmission groups and a first M-sequence polynomial, where the first M-sequence polynomial is x⁷+x⁶+1。
The UE of any one of claims 20-24, wherein the receiving unit passes log₂(N/M) bit information bits receive a group number of the first retransmission group.
An information transmission method, comprising:

the network equipment determines a synchronous signal and a broadcast information block to be sent;

the network equipment sends N frames to user equipment, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the synchronization signals to be sent and broadcast information blocks, 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 frame number indication signal in any one of the N frames occupies different modulation symbols from the synchronization signal to be sent and the broadcast information block in any one of the N frames.
The method of claim 26, wherein each of the N frame number indicator signals is different.
The method of claim 27, wherein the network device transmitting N frames to the user device comprises:

the network equipment carries out channel coding and rate matching on a frame number of a first frame to K modulation symbols to obtain a frame number indication signal in the first frame, wherein K is an integer greater than or equal to 1, and the first frame is any one of the N frames;

and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.
The method of claim 27, wherein the network device transmitting N frames to the user device comprises:

the network equipment maps a frame number of a first frame to an m sequence with the length of K to obtain the m sequence corresponding to the first frame, wherein K is an integer greater than or equal to 1, and the first frame is any one of the N frames;

the network equipment carries out pi/4 phase shift binary phase shift keying BPSK modulation on the m sequence corresponding to the first frame, and maps the m sequence to K modulation symbols to obtain a frame number indication signal in the first frame;

and the network equipment sends a frame number indicating signal for indicating the frame number of the first frame to the user equipment through the first frame.
The method of claim 29, wherein the network device maps the frame number of the first frame to an m-sequence with a length K, and obtains the m-sequence corresponding to the first frame, and comprises:

the network equipment obtains an m sequence corresponding to the first frame according to the frame number of the first frame and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+1。
The method of any of claims 28-30, wherein the frame number of the first frame is logarithmically determined₂And sending the N information bits to the user equipment.
The method according to claim 26, wherein the N frames are divided into N/M retransmission groups, M consecutive frames form one retransmission group, the frame number indication signal in each frame in the retransmission group is the same, the frame number indication signal is generated according to the group number of the retransmission group in which the frame number indication signal is located, the frame number indication signals of different retransmission groups are different, and M is an integer greater than or equal to 2.
The method of claim 32, wherein the network device transmitting N frames to the user device comprises:

the network equipment performs channel coding and rate matching on a group number of a first repeated transmission group to K modulation symbols to obtain a frame number indication signal used for indicating the group number of the first repeated transmission group, wherein K is an integer greater than or equal to 1, and the first repeated transmission group is any repeated transmission group in the N/M repeated transmission groups;

and the network equipment sends M frame number indication signals used for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.
The method of claim 32, wherein the network device transmitting N frames to the user device comprises:

the network equipment maps a group number of a first repeated transmission group to an M sequence with the length of K to obtain the M sequence corresponding to the first repeated transmission group, wherein 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;

the network equipment performs pi/4 phase shift BPSK modulation on the m sequence corresponding to the first repeated transmission group, and maps the m sequence to K modulation symbols to obtain the frame number indication signal for indicating the group number of the first repeated transmission group;

and the network equipment sends M frame number indication signals used for indicating the group number of the first repeated transmission group to the user equipment through the first repeated transmission group.
The method of claim 34, wherein the network device maps the group number of the first retransmission group to an m-sequence with a length K, and obtains the m-sequence corresponding to the first retransmission group, and comprises:

the network equipment generates an m sequence corresponding to the first repeated transmission group according to the group number of the first repeated transmission group and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+1。
The method of any one of claims 33-35Wherein a group number of said first retransmission group passes log₂And (N/M) bit information bits are sent to the user equipment.
An information transmission method, comprising:

the method comprises the steps that user equipment receives N frames sent by network equipment, wherein the N frames respectively carry N frame number indication signals, the N frames all carry the same synchronous signals and the same broadcast information blocks, and N is an integer greater than or equal to 2;

the user equipment obtains the frame numbers of the N frames according to the frame number indicating signal occupying the first modulation symbol in the N frames;

the user equipment combines N synchronous signals occupying second modulation symbols in the N frames and N broadcast information blocks occupying third modulation symbols in the N frames;

the frame number indicating signal is used for indicating the frame number of the frame where the frame number indicating signal is located; the first modulation symbol is different from both the second modulation symbol and the third modulation symbol.
The method of claim 37, wherein each of the N frame number indicator signals is different.
The method as claimed in claim 38, wherein the obtaining, by the ue, the frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames comprises:

and the user equipment performs channel decoding on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a frame number of the first frame, wherein the first frame is any one of the N frames.
The method as claimed in claim 38, wherein the obtaining, by the ue, the frame numbers of the N frames according to a frame number indication signal occupying a first modulation symbol in the N frames comprises:

the user equipment performs pi/4 phase shift Binary Phase Shift Keying (BPSK) demodulation on a frame number indication signal occupying the first modulation symbol in a first frame to obtain a first sequence with the length of K, wherein the first modulation symbol comprises 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 respectively carries out correlation processing on N different m sequences with the length of K and the first sequence to obtain N correlation peak values;

the user equipment takes an m sequence used for acquiring the maximum value of the N correlation peak values as an m sequence corresponding to the first frame;

and the user equipment determines the frame number of the first frame according to the mapping relation between the N m sequences and the frame numbers of the N frames and the m sequence corresponding to the first frame.
The method of claim 40, wherein before the UE correlates N different m-sequences with length K with the first sequence to obtain N correlation peaks, the method further comprises:

the user equipment maps the frame numbers of the N frames to N m sequences with the length of K in a one-to-one correspondence manner to obtain the N different m sequences with the length of K;

and the user equipment establishes a mapping relation between the N m sequences and the frame numbers of the N frames.
The method of claim 41, wherein the UE maps frame numbers of the N frames to N sequences of length K in a one-to-one correspondence, and obtains the N different sequences of length K, comprising:

the user equipment obtains the N m sequences with the length of K according to the frame numbers of the N frames and a first m sequence polynomial, wherein the first m sequence polynomial is x⁷+x⁶+1。
The method of any one of claims 39 to 42Method characterized in that said user equipment passes log₂The N information bits receive a frame number of the first frame.
The method according to claim 37, wherein said N frames are divided into M/N retransmission groups, M consecutive frames form one retransmission group, a frame number indication signal in each frame in said retransmission group is the same, said frame number indication signal is generated according to a group number of the retransmission group in which said frame number indication signal is located, frame number indication signals of different retransmission groups are different, and M is an integer greater than or equal to 2.
The method as claimed in claim 44, wherein the obtaining, by the ue, the frame numbers of the N frames according to the frame number indication signal occupying the first modulation symbol in the N frames comprises:

the user equipment combines the frame number indicating signals occupying the first modulation symbol in the continuous M frames in the N frames to obtain combined frame number indicating signals;

the user equipment successfully decodes the merged frame number indication signal to obtain a group number of a first repeated transmission group consisting of the continuous M frames, wherein the first repeated transmission group is any one of the N/M repeated transmission groups;

and the user equipment determines the frame number of each frame in the first repeated transmission group according to the group number of the first repeated transmission group and the time sequence of each frame in the first repeated transmission group.
The method as claimed in claim 45, wherein the UE successfully decodes the combined frame number indicator to obtain the group number of the first retransmission group consisting of the M consecutive frames, comprising:

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

and when the channel decoding result is verified to be correct, the user equipment determines that the continuous M frames form the first repeated transmission group and takes the channel decoding result as the group number of the first repeated transmission group.
The method as claimed in claim 45, wherein the UE successfully decodes the combined frame number indicator to obtain the group number of the first retransmission group consisting of the M consecutive frames, comprising:

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

the user equipment respectively carries out correlation processing on N/M different M sequences with the length of K and the first sequence to obtain N/M correlation peak values;

when the maximum value of the N/M correlation peak values is larger than a preset value, the user equipment determines that the continuous M frames form the first repeated transmission group, and takes an M sequence used for obtaining the maximum value of the N/M correlation peak values as an M sequence corresponding to the first repeated transmission group;

and the user equipment determines the group number of the first repeated transmission group according to the mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups and the M sequence corresponding to the first repeated transmission group.
The method of claim 47, wherein before the ue correlates N/M different M-sequences with a length of K with the first sequence to obtain N/M correlation peaks, the method further comprises:

the user equipment maps the group numbers of the N/M repeated transmission groups to N/M M sequences with the length of K in a one-to-one correspondence manner to obtain the N/M different M sequences with the length of K;

and the user equipment establishes a mapping relation between the N/M M sequences and the group numbers of the N/M repeated transmission groups.
The method of claim 48, wherein the UE maps the group numbers of the N/M repeated transmission groups to N/M K-long M-sequences in a one-to-one correspondence, and obtains the N/M K-long different M-sequences, comprising:

the user equipment obtains the N/M M sequences with the length of K according to the group numbers of the N/M repeated transmission groups and a first M sequence polynomial, wherein the first M sequence polynomial is x⁷+x⁶+1。
The method according to any of claims 45-49, wherein the UE passes log₂(N/M) bit information bits receive a group number of the first retransmission group.
An information transmission system, comprising: a network device as claimed in any one of claims 1 to 11, and a user equipment as claimed in any one of claims 12 to 25.