CN108632000B

CN108632000B - Method and device in user equipment and base station used for narrow-band communication

Info

Publication number: CN108632000B
Application number: CN201710185618.3A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2017-03-26
Filing date: 2017-03-26
Publication date: 2020-10-02
Anticipated expiration: 2037-03-26
Also published as: CN108632000A

Abstract

The invention discloses a method and a device in user equipment and a base station used for narrow-band communication. The user equipment firstly receives a first wireless signal; then, a second wireless signal is received. The time frequency resource occupied by the first wireless signal comprises a first time frequency sub-resource, and the time frequency resource occupied by the second wireless signal comprises a second time frequency sub-resource. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal. The invention increases the transmission resource of the MIB and avoids the blocking of paging.

Description

Method and device in user equipment and base station used for narrow-band communication

Technical Field

The present invention relates to a transmission scheme in a wireless communication system, and more particularly, to a method and apparatus for broadcast information transmission in a narrowband communication system.

Background

To meet the requirement of diversified applications of the Internet of Things, a new narrowband wireless access system NB-IoT (Narrow Band Internet of Things) is introduced in 3GPP (3rd Generation partnership project) Rel-13. In addition to NB-IoT systems, 3GPP is also standardizing the characteristics of emtc (enhanced Machine Type communication). NB-IoT and eMTC are each oriented to different target market needs.

The NB-IoT system of Rel-13 is enhanced in 3GPP Rel-14. An important enhancement aspect is to provide more functions to the non-anchor physical resource block, such as supporting transmission of a paging channel, supporting transmission of a random access channel, and the like, and introduce functions of positioning and multicasting. To further improve the performance of NB-IoT (such as power consumption and latency), it was decided on 3GPP RAN #75 subcontract to further enhance NB-IoT in 3GPP Rel-15 release.

Disclosure of Invention

In order to solve the problem that the acquisition time of System messages (SI, SystemInformation), especially SIB1-NB (System Information Block Type1-NarrowBand band, NarrowBand System message Block Type 1) in Rel-14 and previous versions of NB-IoT systems is too long, and even exceeds the Modification time (Modification Period) of SIB1-NB, it is decided in Rel-15 version to enhance at least the transmission performance of the existing MIB-NB (Master Information Block-NarrowBand Master Information Block). In order to avoid possible MBSFN (multicast/multicast Single Frequency Network) subframes (Subframe) at NB-IoT In-band (In-band) deployment, for FDD systems, only 0 th, 4 th, 5 th, 9 th subframes (Subframe) In one Radio Frame (Radio Frame) can be used by the sync signal, MIB-NB or SIB 1-NB. As well as NPSS (Narrow-Band Primary Synchronization Signal), NSSS (Narrow-Band secondary Synchronization Signal), NPBCH (Narrow-Band physical broadcast Channel), SIB1-NB already occupies most of subframes #0, #4, #5, # 9. If the transmission of the MIB-NB is enhanced along with the design of the existing NPBCH (i.e. periodic occupying of one fixed subframe), this results in limited resources to carry the increased MIB-NB transmission. More seriously, the paging scheduling also occupies subframes #0, #4, #5, and #9, which may cause paging messages to some specific UEs (UEs) to be always blocked, thereby causing paging to be unable to be transmitted or greatly reducing transmission delay and efficiency.

In order to solve the above problems, the present invention provides a solution. The scheme adopts the subframe (namely the subframe #4) corresponding to the idle SIB1-NB and the subframe (namely the subframe #9) corresponding to the idle NSS to transmit the enhanced MIB-NB if necessary, thereby avoiding the continuous blocking of paging and simultaneously expanding the available resources. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

The invention discloses a method used in user equipment of narrow-band communication, which comprises the following steps:

-step a. receiving a first wireless signal;

-step b.

The time-frequency resource occupied by the first wireless signal comprises a first time-frequency sub-resource, the time-frequency resource occupied by the second wireless signal comprises a second time-frequency sub-resource, and the frequency domain resource in the first time-frequency sub-resource is the same as the frequency domain resource in the second time-frequency sub-resource. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal.

By adopting the method, the Subframe (Subframe) corresponding to the SIB1 but not used by the SIB1 can be used for transmitting the MIB, so that the resources which can be used for transmitting the MIB are increased, and the coverage performance of the MIB is improved.

As an embodiment, with the method, the MIB is transmitted without using a specific subframe in all radio frames (radio frames), thereby avoiding continuous blocking of paging transmissions.

As an embodiment, the time-frequency resources occupied by the first wireless signal further include time-frequency resources other than the first time-frequency sub-resources.

As an embodiment, the time-frequency resources occupied by the second wireless signal further include time-frequency resources other than the second time-frequency sub-resources.

As an embodiment, the frequency domain resource in the first time-frequency sub-resource is a frequency domain resource corresponding to a PRB (physical resource Block).

As an embodiment, a frequency domain resource of the first time-frequency sub-resources is 180 kHz.

As an embodiment, a frequency domain resource in the first time-frequency sub-resource is a frequency domain resource corresponding to an Anchor physical resource block (Anchor PRB).

As an embodiment, the position of the first subframe in the radio frame to which the first subframe belongs refers to an index of the first subframe in the radio frame to which the first subframe belongs.

As an embodiment, the position of the second subframe in the radio frame to which the second subframe belongs refers to an index of the second subframe in the radio frame to which the second subframe belongs.

As an embodiment, the index of the first subframe in the radio frame to which the first subframe belongs is subframe #4 (starting index from 0).

As an embodiment, the index of the second subframe in the radio frame to which the second subframe belongs is subframe #4 (starting index from 0).

As an embodiment, the MIB (Master Information Block) is an MIB of NB-IoT (i.e., MIB-NB, Master Information Block-Narrow Band).

As an embodiment, the SIB1(System Information Block type 1) is SIB1 of NB-IoT (i.e. SIB 1-NB).

As an embodiment, the first wireless signal is transmitted through a NPBCH (Narrow-band physical broadcast Channel).

As an example, the first wireless signal is a transmission for MIB-NB outside of the NPBCH (Narrow-band physical broadcast Channel) of Rel-14.

As an embodiment, Rel-14 and previous versions of user equipment are unaware of the presence of the first wireless signal.

As an embodiment, the first radio signal is only recognizable by Rel-15 and later versions of the user equipment.

As an embodiment, the second radio signal is transmitted through a NPDSCH (Narrow-band physical downlink Shared Channel).

As an embodiment, the MIB is used by the user equipment to determine a Transport Block Size (TBS) used by the second wireless signal.

As an embodiment, the MIB indicates a TBS (Transport block size) employed by the second wireless signal.

Specifically, according to an aspect of the present invention, the method is characterized in that { the position in the time domain of the radio frame to which the first subframe belongs, and the position in the time domain of the radio frame to which the second subframe belongs } are related to a signature ID of a sender of the first radio signal.

As an embodiment, the position of the radio Frame to which the first subframe belongs in the time domain refers to a System Frame Number (SFN) of the radio Frame to which the first subframe belongs.

As an embodiment, the position of the radio Frame to which the second subframe belongs in the time domain refers to a System Frame Number (SFN) of the radio Frame to which the second subframe belongs.

As an embodiment, the feature ID is a PCID (Physical Cell ID) of NB-IoT.

As an embodiment, the ID of the sender of the first wireless signal determines { the location of the radio frame to which the first subframe belongs in the time domain and the location of the radio frame to which the second subframe belongs in the time domain } through a specific mapping relationship.

In particular, according to an aspect of the present invention, the method is characterized in that the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

As an embodiment, a frequency domain Resource in the second time-frequency sub-Resource belongs to an Anchor Physical Resource Block (Anchor PRB), and a frequency domain Resource in the third time-frequency sub-Resource belongs to a Non-Anchor Physical Resource Block (Non-Anchor PRB).

As an embodiment, the time domain resource of the third time-frequency sub-resource and the time domain resource of the second time-frequency sub-resource are the same.

As an embodiment, the time domain resource of the third time-frequency sub-resource and the time domain resource of the second time-frequency sub-resource are different.

As an embodiment, the time domain resource of the third time-frequency sub-resource belongs to subframe #4 (indexed from 0) in one radio frame.

As an embodiment, the time domain resource of the third time-frequency sub-resource belongs to one of { subframe #0, subframe #5, subframe #9} in a radio frame (indexed from 0).

As an embodiment, the MIB is used by the user equipment to determine the third time-frequency sub-resource.

As an embodiment, the MIB indicates the third time-frequency sub-resource.

Specifically, according to an aspect of the present invention, the method is characterized in that the step a further includes the steps of:

step A0. receives the third wireless signal.

Wherein the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal. The time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

As an embodiment, the radio frame to which the third subframe belongs is the same as the radio frame to which the second subframe belongs.

As an embodiment, a radio frame to which the third subframe belongs is different from a radio frame to which the second subframe belongs.

As an embodiment, the radio frame to which the third subframe belongs is the same as the radio frame to which the first subframe belongs.

As an embodiment, a radio frame to which the third subframe belongs is different from a radio frame to which the first subframe belongs.

As an embodiment, the radio frame to which the fourth subframe belongs is the same as the radio frame to which the first subframe belongs.

As an embodiment, a radio frame to which the fourth subframe belongs is different from a radio frame to which the first subframe belongs.

As an embodiment, the radio frame to which the fourth subframe belongs is the same as the radio frame to which the second subframe belongs.

As an embodiment, a radio frame to which the fourth subframe belongs is different from a radio frame to which the second subframe belongs.

As an embodiment, the position of the third subframe in the radio frame to which the third subframe belongs refers to an index of the third subframe in the radio frame to which the third subframe belongs.

As an embodiment, the position of the fourth subframe in the radio frame to which the fourth subframe belongs refers to an index of the fourth subframe in the radio frame to which the fourth subframe belongs.

As an embodiment, the index of the third subframe in the radio frame to which the third subframe belongs is subframe #9 (starting index from 0).

As an embodiment, the index of the fourth subframe in the radio frame to which the fourth subframe belongs is subframe #9 (starting from 0).

As one embodiment, the third wireless signal is used by the user device to determine a characteristic ID of a sender of the first wireless signal.

As an example, the third wireless Signal is NSSS (Narrow band secondary synchronization Signal).

As one embodiment, the third wireless signal is generated by a ZC (Zadoff-Chu) sequence.

In particular, according to one aspect of the invention, the above method is characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

As an example, the time length of the first time window is equal to 640 milliseconds.

As an embodiment, the first bit block sequentially passes through a Modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a Resource element Mapper (Resource element Mapper), and an OFDM signal Generation (Generation) to obtain the first radio signal.

As one embodiment, M is equal to 64.

As one embodiment, the first sequence is generated by a pseudo-random sequence.

As an embodiment, the first sequence is generated from an m-sequence.

As an example, the length of the first sequence is 1600.

As an embodiment, the initial value of the generator of the first sequence is related to a characteristic ID of the sender of the first wireless signal.

The invention discloses a method used in a base station device of narrow-band communication, which comprises the following steps:

-step a. transmitting a first wireless signal;

-step b.

step A0. sends a third wireless signal.

The invention discloses user equipment used for narrow-band communication, which comprises the following modules:

-a first receiving module: for receiving a first wireless signal;

-a second receiving module: for receiving the second wireless signal.

Specifically, according to an aspect of the present invention, the ue is characterized in that { a position in a time domain of a radio frame to which the first subframe belongs, and a position in a time domain of a radio frame to which the second subframe belongs } are related to a signature ID of a sender of the first radio signal.

Specifically, according to an aspect of the present invention, the ue is characterized in that the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

Specifically, according to an aspect of the present invention, the above user equipment is characterized in that the first receiving module is further configured to receive a third wireless signal. The third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal. The time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

In particular, according to one aspect of the present invention, the above user equipment is characterized in that a first bit block is used for generating the first radio signal, the first bit block comprising a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

The invention discloses a base station device used for narrow-band communication, which comprises the following modules:

-a first sending module: for transmitting a first wireless signal;

-a second sending module: for transmitting the second wireless signal.

Specifically, according to an aspect of the present invention, the base station apparatus is characterized in that { a position in a time domain of a radio frame to which the first subframe belongs, and a position in a time domain of a radio frame to which the second subframe belongs } are related to a characteristic ID of a transmitter of the first radio signal.

Specifically, according to an aspect of the present invention, the base station device is characterized in that the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

Specifically, according to an aspect of the present invention, the base station device is characterized in that the first transmitting module is further configured to transmit a third wireless signal. The third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal. The time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

Specifically, according to an aspect of the present invention, the base station apparatus described above is characterized in that a first bit block is used for generating the first radio signal, the first bit block including a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 shows a wireless signal transmission flow diagram according to an embodiment of the invention;

FIG. 2 shows a schematic diagram of a relationship between a first wireless signal and a second wireless signal according to one embodiment of the invention;

FIG. 3 shows a schematic diagram of a subframe usable by a first wireless signal according to one embodiment of the invention;

FIG. 4 shows a schematic diagram of a first bit block in relation to a first sequence according to one embodiment of the invention;

FIG. 5 shows a block diagram of a processing device in a User Equipment (UE) according to an embodiment of the invention;

fig. 6 shows a block diagram of a processing means in a base station according to an embodiment of the invention;

Detailed Description

The technical solutions of the present invention will be further described in detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application may be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a wireless signal transmission flow diagram according to an embodiment of the present invention, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2.

For theBase station N1The third wireless signal is transmitted in step S11, the first wireless signal is transmitted in step S12, and the second wireless signal is transmitted in step S13.

For theUE U2The third wireless signal is received in step S21, the first wireless signal is received in step S22, and the second wireless signal is received in step S23.

In embodiment 1, the time-frequency resource occupied by the first wireless signal includes a first time-frequency sub-resource, the time-frequency resource occupied by the second wireless signal includes a second time-frequency sub-resource, and a frequency domain resource in the first time-frequency sub-resource is the same as a frequency domain resource in the second time-frequency sub-resource. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal. The third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal.

In sub-embodiment 1 of embodiment 1, { the position in the time domain of the radio frame to which the first subframe belongs, and the position in the time domain of the radio frame to which the second subframe belongs } relate to the signature ID of the transmitter of the first radio signal.

In sub-embodiment 2 of embodiment 1, the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency-domain resource in the third time-frequency sub-resource is different from a frequency-domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

In sub-embodiment 3 of embodiment 1, the time-frequency resource occupied by the third wireless signal includes a fourth time-frequency sub-resource, the time-frequency resource occupied by the first wireless signal further includes a fifth time-frequency sub-resource, and a frequency domain resource in the fourth time-frequency sub-resource is the same as a frequency domain resource in the fifth time-frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

In sub-embodiment 4 of embodiment 1, a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

In sub-embodiment 5 of embodiment 1, the MIB (Master Information Block) is an MIB of NB-IoT (i.e., MIB-NB, Master Information Block-Narrow Band).

In sub-embodiment 6 of embodiment 1, the SIB1(System Information Block type 1) is SIB1 (i.e., SIB1-NB) of NB-IoT.

Example 2

Embodiment 2 illustrates a schematic diagram of a relationship between a first wireless signal and a second wireless signal according to an embodiment of the present invention, as shown in fig. 2. In fig. 2, the horizontal axis represents time, the vertical axis represents frequency, one square grid occupies one subframe in the time domain, and occupies a resource corresponding to one PRB in the frequency domain, a rectangular region filled with crossed lines in a radio frame # k represents a first time-frequency sub-resource in a resource occupied by a first radio signal, a rectangular region filled with crossed lines in a radio frame # k +1 represents a fifth time-frequency sub-resource in a resource occupied by the first radio signal, a rectangular region filled with oblique lines at the lower part represents a second time-frequency sub-resource of a resource occupied by a second radio signal, a rectangular region filled with oblique lines at the upper part represents a third time-frequency sub-resource of a resource occupied by the second radio signal, and a rectangular region filled with vertical lines in the radio frame # k represents a fourth time-frequency sub-resource in a resource occupied by a third radio signal. The numbers marked above each square represent the subframe numbers within the corresponding radio frame.

In embodiment 2, the frequency domain resources in the first time-frequency sub-resources are the same as the frequency domain resources in the second time-frequency sub-resources. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The time frequency resources occupied by the second wireless signals further comprise third time frequency sub-resources, and frequency domain resources in the third time frequency sub-resources are different from frequency domain resources in the second time frequency sub-resources. The time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

In sub-embodiment 1 of embodiment 2, the time-frequency resources occupied by the first radio signal further include time-frequency resources other than the first time-frequency sub-resources.

In sub-embodiment 2 of embodiment 2, the time-frequency resources occupied by the second wireless signal further include time-frequency resources other than the second time-frequency sub-resources.

In sub-embodiment 3 of embodiment 2, the frequency domain resource in the first time-frequency sub-resources is 180 kHz.

In sub-embodiment 4 of embodiment 2, the frequency domain resource in the first time-frequency sub-resource is a frequency domain resource corresponding to an Anchor physical resource block (Anchor PRB).

In sub-embodiment 5 of embodiment 2, the index of the first subframe in the radio frame to which the first subframe belongs is subframe #4 (index starting from 0).

In sub-embodiment 6 of embodiment 2, the index of the second subframe in the radio frame to which the second subframe belongs is subframe #4 (index starting from 0).

In a sub-embodiment 7 of embodiment 2, the first radio signal is transmitted through NPBCH (Narrow-band physical broadcast Channel).

In a sub-embodiment 8 of embodiment 2, the first radio signal is a transmission for the MIB-NB outside the NPBCH (Narrow-band physical Broadcast Channel) of Rel-14.

In a sub-embodiment 9 of embodiment 2, Rel-14 and previous versions of the user equipment are unaware of the presence of the first radio signal.

In a sub-embodiment 10 of embodiment 2, the first radio signal is only recognizable by Rel-15 and later versions of the user equipment.

In a sub-embodiment 11 of embodiment 2, the second radio signal is transmitted via NPDSCH (Narrow-band physical Downlink Shared Channel).

In sub-embodiment 12 of embodiment 2, a frequency domain Resource in the second time-frequency sub-resources belongs to an Anchor Physical Resource Block (Anchor PRB), and a frequency domain Resource in the third time-frequency sub-resources belongs to a Non-Anchor Physical Resource Block (Non-Anchor PRB).

In sub-embodiment 14 of embodiment 2, the time domain resource of the third time-frequency sub-resource and the time domain resource of the second time-frequency sub-resource are different.

In sub-embodiment 15 of embodiment 2, the time domain resource of the third time-frequency sub-resource belongs to one of { subframe #0, subframe #5, subframe #9} in one radio frame (indexed from 0).

In sub-embodiment 16 of embodiment 2, the radio frame to which the third subframe belongs is different from the radio frame to which the second subframe belongs.

In sub-embodiment 17 of embodiment 2, the radio frame to which the third subframe belongs is the same as the radio frame to which the first subframe belongs.

In sub-embodiment 18 of embodiment 2, the radio frame to which the fourth subframe belongs is different from the radio frame to which the first subframe belongs.

In sub-embodiment 19 of embodiment 2, the radio frame to which the fourth subframe belongs is the same as the radio frame to which the second subframe belongs.

In sub-embodiment 20 of embodiment 2, the index of the third subframe in the radio frame to which the third subframe belongs is subframe #9 (starting from 0).

In sub-embodiment 21 of embodiment 2, the index of the fourth subframe in the radio frame to which the fourth subframe belongs is subframe #9 (starting from 0).

In a sub-embodiment 22 of embodiment 2, the third wireless Signal is NSSS (Narrow band secondary synchronization Signal).

Example 3

Embodiment 3 illustrates a schematic diagram of a subframe that can be used by a first wireless signal according to an embodiment of the present invention, as shown in fig. 3. In the context of the attached figure 3,

a characteristic ID, n representing the transmission of the first radio signal_fRepresents the System Frame Number (SFN), and SF # j represents that the jth subframe in the eligible radio frame is available (indexed from 0).

In embodiment 3, the time-frequency resources occupied by the first radio signal include a first time-frequency sub-resource, the time-frequency resource of the first time-frequency sub-resource belongs to a first subframe, and a position of a radio frame to which the first subframe belongs in a time domain is related to a characteristic ID of a sender of the first radio signal.

In sub-embodiment 1 of embodiment 3, the index of the first subframe in the radio frame to which the first subframe belongs is subframe #4 (index starting from 0).

In sub-embodiment 2 of embodiment 3, the feature ID is a PCID (Physical Cell ID) of NB-IoT.

Example 4

Embodiment 4 illustrates a schematic diagram of the relationship of a first bit block to a first sequence according to an embodiment of the present invention, as shown in fig. 4. In fig. 4, each small box represents a bit, the upper bits constituting a first bit block and the lower bits constituting a first sequence.

In embodiment 4, a first block of bits is used for generating a first radio signal, the first block of bits comprising a positive integer number of bits, a first sequence is used for scrambling the first block of bits, the generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

In sub-embodiment 1 of embodiment 4, the time length of the first time window is equal to 640 milliseconds.

In sub-embodiment 2 of embodiment 4, the first bit block sequentially passes through a modulation Mapper (modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a resource element Mapper (resource element Mapper), and an OFDM signal Generation (Generation) to obtain the first radio signal.

In sub-embodiment 3 of embodiment 4, said M is equal to 64.

In a sub-embodiment 4 of embodiment 4, the first sequence is generated by a pseudo-random sequence.

In sub-embodiment 5 of embodiment 4, the first sequence is generated from an m-sequence.

In sub-embodiment 6 of embodiment 4, the first sequence is 1600 a long.

In a sub-embodiment 7 of embodiment 4, an initial value of the generator of the first sequence is related to a characteristic ID of a sender of the first wireless signal.

Example 5

Embodiment 5 illustrates a block diagram of a processing device in a user equipment, as shown in fig. 5. In fig. 5, the ue processing apparatus 100 is mainly composed of a first receiving module 101 and a second receiving module 102.

In embodiment 5, the first receiving module 101 is configured to receive a first wireless signal, the second receiving module 102 is configured to receive a second wireless signal, and the first receiving module 101 is further configured to receive a third wireless signal. The time-frequency resource occupied by the first wireless signal comprises a first time-frequency sub-resource, the time-frequency resource occupied by the second wireless signal comprises a second time-frequency sub-resource, and the frequency domain resource in the first time-frequency sub-resource is the same as the frequency domain resource in the second time-frequency sub-resource. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal. The third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal.

In sub-embodiment 1 of embodiment 5, { the position in the time domain of the radio frame to which the first subframe belongs, and the position in the time domain of the radio frame to which the second subframe belongs } relate to the signature ID of the sender of the first radio signal.

In sub-embodiment 2 of embodiment 5, the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency-domain resource in the third time-frequency sub-resource is different from a frequency-domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

In sub-embodiment 3 of embodiment 5, the time-frequency resource occupied by the third wireless signal includes a fourth time-frequency sub-resource, the time-frequency resource occupied by the first wireless signal further includes a fifth time-frequency sub-resource, and a frequency domain resource in the fourth time-frequency sub-resource is the same as a frequency domain resource in the fifth time-frequency sub-resource. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

In sub-embodiment 4 of embodiment 5, a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

Example 6

Embodiment 6 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 6. In fig. 6, the base station processing apparatus 200 is mainly composed of a first transmitting module 201 and a second transmitting module 202.

In embodiment 6, the first sending module 201 is configured to send a first wireless signal, the second sending module 202 is configured to send a second wireless signal, and the first sending module 201 is further configured to send a third wireless signal. The time-frequency resource occupied by the first wireless signal comprises a first time-frequency sub-resource, the time-frequency resource occupied by the second wireless signal comprises a second time-frequency sub-resource, and the frequency domain resource in the first time-frequency sub-resource is the same as the frequency domain resource in the second time-frequency sub-resource. The time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs. The first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal. The third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal.

In sub-embodiment 1 of embodiment 6, { the position in the time domain of the radio frame to which the first subframe belongs, and the position in the time domain of the radio frame to which the second subframe belongs } relate to the signature ID of the transmitter of the first radio signal.

In sub-embodiment 2 of embodiment 6, the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency-domain resource in the third time-frequency sub-resource is different from a frequency-domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

In sub-embodiment 3 of embodiment 6, the time-frequency resources occupied by the third wireless signals include fourth time-frequency sub-resources, the time-frequency resources occupied by the first wireless signals further include fifth time-frequency sub-resources, and frequency-domain resources in the fourth time-frequency sub-resources are the same as frequency-domain resources in the fifth time-frequency sub-resources. The time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

In sub-embodiment 4 of embodiment 6, a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits. A first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the invention includes but is not limited to wireless communication equipment such as a mobile phone, a tablet computer, a notebook computer, a network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle-mounted communication equipment and the like. The base station or the network side device in the present invention includes but is not limited to a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, and other wireless communication devices.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method in a user equipment used for narrowband communication, comprising the steps of:

-step a. receiving a first wireless signal;

-step b. receiving a second radio signal;

the time-frequency resource occupied by the first wireless signal comprises a first time-frequency sub-resource, the time-frequency resource occupied by the second wireless signal comprises a second time-frequency sub-resource, and the frequency domain resource in the first time-frequency sub-resource is the same as the frequency domain resource in the second time-frequency sub-resource; the time domain resource of the first time-frequency sub-resource belongs to a first subframe, the time domain resource of the second time-frequency sub-resource belongs to a second subframe, the first subframe is different from the second subframe, and the position of the first subframe in a radio frame to which the first subframe belongs is the same as the position of the second subframe in a radio frame to which the second subframe belongs; the first wireless signal carries a MIB, and the second wireless signal carries a SIB1, where the MIB is used to determine a TBS to be employed by the second wireless signal.

2. The method of claim 1, wherein a location of the radio frame in the time domain to which the first subframe belongs and a location of the radio frame in the time domain to which the second subframe belongs are both related to a characteristic ID of a sender of the first radio signal.

3. The method according to claim 1 or 2, wherein the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

4. The method of claim 2, wherein step a further comprises the steps of:

-step A0. receiving a third wireless signal;

wherein the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal; the time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource; the time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

5. The method of claim 3, wherein step A further comprises the steps of:

-step A0. receiving a third wireless signal;

6. The method of claim 1 or 2, wherein a first block of bits is used for generating the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

7. The method of claim 3, wherein a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

8. The method of claim 4 or 5, wherein a first block of bits is used for generating the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

9. A method in a base station apparatus used for narrowband communication, comprising the steps of:

-step a. transmitting a first wireless signal;

-step b. transmitting a second radio signal;

10. The method of claim 9, wherein the position of the radio frame in the time domain to which the first subframe belongs and the position of the radio frame in the time domain to which the second subframe belongs are related to a characteristic ID of a sender of the first radio signal.

11. The method according to claim 9 or 10, wherein the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

12. The method of claim 10, wherein step a further comprises the steps of:

-step A0. sending a third wireless signal;

13. The method of claim 11, wherein step a further comprises the steps of:

-step A0. sending a third wireless signal;

14. The method according to claim 9 or 10, characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

15. The method of claim 11, wherein a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

16. The method of claim 12 or 13, wherein a first block of bits is used for generating the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

17. A user equipment used for narrowband communication, comprising:

-a first receiving module: for receiving a first wireless signal;

-a second receiving module: for receiving a second wireless signal;

18. The UE of claim 17, wherein the location of the radio frame in the time domain to which the first subframe belongs and the location of the radio frame in the time domain to which the second subframe belongs are both related to a signature ID of a sender of the first radio signal.

19. The ue of claim 17 or 18, wherein the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource of the third time-frequency sub-resource is different from a frequency domain resource of the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

20. The user equipment of claim 18, wherein the first receiving module is further configured to receive a third wireless signal; the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal; the time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource; the time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

21. The UE of claim 19, wherein the first receiving module is further configured to receive a third wireless signal; the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal; the time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource; the time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

22. The user equipment according to claim 17 or 18, characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

23. The user equipment of claim 19, wherein a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

24. The user equipment according to claim 20 or 21, characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

25. A base station apparatus used for narrowband communication, comprising:

-a first sending module: for transmitting a first wireless signal;

-a second sending module: for transmitting a second wireless signal;

26. The base station apparatus of claim 25, wherein the position of the radio frame in the time domain to which the first subframe belongs and the position of the radio frame in the time domain to which the second subframe belongs are related to a characteristic ID of a sender of the first radio signal.

27. The base station device according to claim 25 or 26, wherein the time-frequency resources occupied by the second radio signal further include a third time-frequency sub-resource, a frequency domain resource in the third time-frequency sub-resource is different from a frequency domain resource in the second time-frequency sub-resource, and the MIB is used to determine the third time-frequency sub-resource.

28. The base station device of claim 26, wherein the first transmitting module is further configured to transmit a third wireless signal; the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal; the time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource; the time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

29. The base station device of claim 27, wherein the first transmitting module is further configured to transmit a third wireless signal; the third wireless signal is used to determine a characteristic ID of a sender of the first wireless signal; the time frequency resource occupied by the third wireless signal comprises a fourth time frequency sub-resource, the time frequency resource occupied by the first wireless signal also comprises a fifth time frequency sub-resource, and the frequency domain resource in the fourth time frequency sub-resource is the same as the frequency domain resource in the fifth time frequency sub-resource; the time domain resource of the fourth time-frequency sub-resource belongs to a third subframe, the time domain resource of the fifth time-frequency sub-resource belongs to a fourth subframe, the third subframe is different from the fourth subframe, and the position of the third subframe in a radio frame to which the third subframe belongs is the same as the position of the fourth subframe in a radio frame to which the fourth subframe belongs.

30. Base station device according to claim 25 or 26, characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

31. The base station device of claim 27, wherein a first block of bits is used to generate the first wireless signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.

32. Base station device according to claim 28 or 29, characterized in that a first block of bits is used for generating the first radio signal, the first block of bits comprising a positive integer number of bits; a first sequence is used for scrambling of the first bit block, a generator of the first sequence is initialized in an initial radio frame in a first time window, the first time window comprising M consecutive radio frames, M being a positive integer, the content of the MIB remaining unchanged within the first time window.